1 /*
2 * MXF muxer
3 * Copyright (c) 2008 GUCAS, Zhentan Feng <spyfeng at gmail dot com>
4 * Copyright (c) 2008 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 /*
24 * signal_standard, color_siting, store_user_comments, sample rate and klv_fill_key version
25 * fixes sponsored by NOA GmbH
26 */
27
28 /*
29 * References
30 * SMPTE 336M KLV Data Encoding Protocol Using Key-Length-Value
31 * SMPTE 377M MXF File Format Specifications
32 * SMPTE 379M MXF Generic Container
33 * SMPTE 381M Mapping MPEG Streams into the MXF Generic Container
34 * SMPTE 422M Mapping JPEG 2000 Codestreams into the MXF Generic Container
35 * SMPTE RP210: SMPTE Metadata Dictionary
36 * SMPTE RP224: Registry of SMPTE Universal Labels
37 */
38
39 #include <inttypes.h>
40 #include <math.h>
41 #include <time.h>
42
43 #include "libavutil/opt.h"
44 #include "libavutil/random_seed.h"
45 #include "libavutil/timecode.h"
46 #include "libavutil/avassert.h"
47 #include "libavutil/mastering_display_metadata.h"
48 #include "libavutil/pixdesc.h"
49 #include "libavutil/time_internal.h"
50 #include "libavcodec/bytestream.h"
51 #include "libavcodec/dnxhddata.h"
52 #include "libavcodec/dv_profile.h"
53 #include "libavcodec/h264_ps.h"
54 #include "libavcodec/golomb.h"
55 #include "libavcodec/internal.h"
56 #include "libavcodec/packet_internal.h"
57 #include "avformat.h"
58 #include "avio_internal.h"
59 #include "internal.h"
60 #include "avc.h"
61 #include "mxf.h"
62 #include "config.h"
63
64 extern AVOutputFormat ff_mxf_d10_muxer;
65 extern AVOutputFormat ff_mxf_opatom_muxer;
66
67 #define EDIT_UNITS_PER_BODY 250
68 #define KAG_SIZE 512
69
70 typedef struct MXFIndexEntry {
71 uint64_t offset;
72 unsigned slice_offset; ///< offset of audio slice
73 uint16_t temporal_ref;
74 uint8_t flags;
75 } MXFIndexEntry;
76
77 typedef struct MXFStreamContext {
78 int64_t pkt_cnt; ///< pkt counter for muxed packets
79 UID track_essence_element_key;
80 int index; ///< index in mxf_essence_container_uls table
81 const UID *codec_ul;
82 const UID *container_ul;
83 int order; ///< interleaving order if dts are equal
84 int interlaced; ///< whether picture is interlaced
85 int field_dominance; ///< tff=1, bff=2
86 int component_depth;
87 int color_siting;
88 int signal_standard;
89 int h_chroma_sub_sample;
90 int v_chroma_sub_sample;
91 int temporal_reordering;
92 AVRational aspect_ratio; ///< display aspect ratio
93 int closed_gop; ///< gop is closed, used in mpeg-2 frame parsing
94 int video_bit_rate;
95 int slice_offset;
96 int frame_size; ///< frame size in bytes
97 int seq_closed_gop; ///< all gops in sequence are closed, used in mpeg-2 descriptor
98 int max_gop; ///< maximum gop size, used by mpeg-2 descriptor
99 int b_picture_count; ///< maximum number of consecutive b pictures, used in mpeg-2 descriptor
100 int low_delay; ///< low delay, used in mpeg-2 descriptor
101 int avc_intra;
102 } MXFStreamContext;
103
104 typedef struct MXFContainerEssenceEntry {
105 UID container_ul;
106 UID element_ul;
107 UID codec_ul;
108 void (*write_desc)(AVFormatContext *, AVStream *);
109 } MXFContainerEssenceEntry;
110
111 typedef struct MXFPackage {
112 char *name;
113 enum MXFMetadataSetType type;
114 int instance;
115 struct MXFPackage *ref;
116 } MXFPackage;
117
118 enum ULIndex {
119 INDEX_MPEG2 = 0,
120 INDEX_AES3,
121 INDEX_WAV,
122 INDEX_D10_VIDEO,
123 INDEX_D10_AUDIO,
124 INDEX_DV,
125 INDEX_DNXHD,
126 INDEX_JPEG2000,
127 INDEX_H264,
128 INDEX_S436M,
129 INDEX_PRORES,
130 };
131
132 static const struct {
133 enum AVCodecID id;
134 enum ULIndex index;
135 } mxf_essence_mappings[] = {
136 { AV_CODEC_ID_MPEG2VIDEO, INDEX_MPEG2 },
137 { AV_CODEC_ID_PCM_S24LE, INDEX_AES3 },
138 { AV_CODEC_ID_PCM_S16LE, INDEX_AES3 },
139 { AV_CODEC_ID_DVVIDEO, INDEX_DV },
140 { AV_CODEC_ID_DNXHD, INDEX_DNXHD },
141 { AV_CODEC_ID_JPEG2000, INDEX_JPEG2000 },
142 { AV_CODEC_ID_H264, INDEX_H264 },
143 { AV_CODEC_ID_PRORES, INDEX_PRORES },
144 { AV_CODEC_ID_NONE }
145 };
146
147 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
148 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st);
149 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
150 static void mxf_write_h264_desc(AVFormatContext *s, AVStream *st);
151 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st);
152 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st);
153 static void mxf_write_s436m_anc_desc(AVFormatContext *s, AVStream *st);
154
155 static const MXFContainerEssenceEntry mxf_essence_container_uls[] = {
156 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
157 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
158 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
159 mxf_write_mpegvideo_desc },
160 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x03,0x00 },
161 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x03,0x00 },
162 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
163 mxf_write_aes3_desc },
164 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
165 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
166 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
167 mxf_write_wav_desc },
168 // D-10 Video
169 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
170 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x05,0x01,0x01,0x00 },
171 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 },
172 mxf_write_cdci_desc },
173 // D-10 Audio
174 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 },
175 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x06,0x01,0x10,0x00 },
176 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
177 mxf_write_generic_sound_desc },
178 // DV
179 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x7F,0x01 },
180 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x18,0x01,0x01,0x00 },
181 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x00,0x00,0x00 },
182 mxf_write_cdci_desc },
183 // DNxHD
184 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x11,0x01,0x00 },
185 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
186 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 },
187 mxf_write_cdci_desc },
188 // JPEG2000
189 { { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x0d,0x01,0x03,0x01,0x02,0x0c,0x01,0x00 },
190 { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x08,0x00 },
191 { 0x06,0x0e,0x2b,0x34,0x04,0x01,0x01,0x07,0x04,0x01,0x02,0x02,0x03,0x01,0x01,0x00 },
192 mxf_write_cdci_desc },
193 // H.264
194 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x0D,0x01,0x03,0x01,0x02,0x10,0x60,0x01 },
195 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
196 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
197 mxf_write_h264_desc },
198 // S436M ANC
199 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x0D,0x01,0x03,0x01,0x02,0x0e,0x00,0x00 },
200 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x17,0x01,0x02,0x00 },
201 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x01,0x5C,0x00 },
202 mxf_write_s436m_anc_desc },
203 // ProRes
204 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x0d,0x01,0x03,0x01,0x02,0x1c,0x01,0x00 },
205 { 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x15,0x01,0x17,0x00 },
206 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x03,0x00 },
207 mxf_write_cdci_desc },
208 { { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
209 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
210 { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
211 NULL },
212 };
213
214 static const UID mxf_d10_codec_uls[] = {
215 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x01 }, // D-10 625/50 PAL 50mb/s
216 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x02 }, // D-10 525/50 NTSC 50mb/s
217 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x03 }, // D-10 625/50 PAL 40mb/s
218 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x04 }, // D-10 525/50 NTSC 40mb/s
219 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x05 }, // D-10 625/50 PAL 30mb/s
220 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x01,0x02,0x01,0x06 }, // D-10 525/50 NTSC 30mb/s
221 };
222
223 static const UID mxf_d10_container_uls[] = {
224 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 }, // D-10 625/50 PAL 50mb/s
225 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x02,0x01 }, // D-10 525/50 NTSC 50mb/s
226 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x03,0x01 }, // D-10 625/50 PAL 40mb/s
227 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x04,0x01 }, // D-10 525/50 NTSC 40mb/s
228 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 }, // D-10 625/50 PAL 30mb/s
229 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x06,0x01 }, // D-10 525/50 NTSC 30mb/s
230 };
231
232 static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
233 static const uint8_t umid_ul[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x01,0x0D,0x00,0x13 };
234
235 /**
236 * complete key for operation pattern, partitions, and primer pack
237 */
238 static const uint8_t op1a_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x01,0x09,0x00 };
239 static const uint8_t opatom_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x02,0x01,0x10,0x03,0x00,0x00 };
240 static const uint8_t footer_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x04,0x04,0x00 }; // ClosedComplete
241 static const uint8_t primer_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x05,0x01,0x00 };
242 static const uint8_t index_table_segment_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x02,0x01,0x01,0x10,0x01,0x00 };
243 static const uint8_t header_open_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x02,0x01,0x00 }; // OpenIncomplete
244 static const uint8_t header_closed_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x02,0x04,0x00 }; // ClosedComplete
245 static const uint8_t klv_fill_key[] = { 0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x10,0x01,0x00,0x00,0x00 };
246 static const uint8_t body_partition_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x02,0x01,0x01,0x03,0x04,0x00 }; // ClosedComplete
247
248 /**
249 * partial key for header metadata
250 */
251 static const uint8_t header_metadata_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01 };
252 static const uint8_t multiple_desc_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x0D,0x01,0x03,0x01,0x02,0x7F,0x01,0x00 };
253
254 /**
255 * SMPTE RP210 http://www.smpte-ra.org/mdd/index.html
256 * https://smpte-ra.org/sites/default/files/Labels.xml
257 */
258 static const MXFLocalTagPair mxf_local_tag_batch[] = {
259 // preface set
260 { 0x3C0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x02,0x00,0x00,0x00,0x00}}, /* Instance UID */
261 { 0x3B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x04,0x00,0x00}}, /* Last Modified Date */
262 { 0x3B05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x05,0x00,0x00,0x00}}, /* Version */
263 { 0x3B07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x01,0x02,0x01,0x04,0x00,0x00,0x00}}, /* Object Model Version */
264 { 0x3B06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x04,0x00,0x00}}, /* Identifications reference */
265 { 0x3B03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x01,0x00,0x00}}, /* Content Storage reference */
266 { 0x3B09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x03,0x00,0x00,0x00,0x00}}, /* Operational Pattern UL */
267 { 0x3B0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x01,0x00,0x00}}, /* Essence Containers UL batch */
268 { 0x3B0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x01,0x02,0x02,0x10,0x02,0x02,0x00,0x00}}, /* DM Schemes UL batch */
269 // Identification
270 { 0x3C09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x01,0x00,0x00,0x00}}, /* This Generation UID */
271 { 0x3C01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x02,0x01,0x00,0x00}}, /* Company Name */
272 { 0x3C02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x03,0x01,0x00,0x00}}, /* Product Name */
273 { 0x3C03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x04,0x00,0x00,0x00}}, /* Product Version */
274 { 0x3C04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x05,0x01,0x00,0x00}}, /* Version String */
275 { 0x3C05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x07,0x00,0x00,0x00}}, /* Product ID */
276 { 0x3C06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x03,0x00,0x00}}, /* Modification Date */
277 { 0x3C07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x0A,0x00,0x00,0x00}}, /* Toolkit Version */
278 { 0x3C08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x20,0x07,0x01,0x06,0x01,0x00,0x00}}, /* Platform */
279 // Content Storage
280 { 0x1901, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x01,0x00,0x00}}, /* Package strong reference batch */
281 { 0x1902, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x05,0x02,0x00,0x00}}, /* Package strong reference batch */
282 // Essence Container Data
283 { 0x2701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x06,0x01,0x00,0x00,0x00}}, /* Linked Package UID */
284 { 0x3F07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x04,0x00,0x00,0x00,0x00}}, /* BodySID */
285 // Package
286 { 0x4401, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x15,0x10,0x00,0x00,0x00,0x00}}, /* Package UID */
287 { 0x4405, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x01,0x03,0x00,0x00}}, /* Package Creation Date */
288 { 0x4404, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x10,0x02,0x05,0x00,0x00}}, /* Package Modified Date */
289 { 0x4402, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x03,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Package Name */
290 { 0x4403, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x05,0x00,0x00}}, /* Tracks Strong reference array */
291 { 0x4701, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x03,0x00,0x00}}, /* Descriptor */
292 // Track
293 { 0x4801, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x07,0x01,0x01,0x00,0x00,0x00,0x00}}, /* Track ID */
294 { 0x4804, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x01,0x04,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Track Number */
295 { 0x4B01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x05,0x30,0x04,0x05,0x00,0x00,0x00,0x00}}, /* Edit Rate */
296 { 0x4B02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x03,0x00,0x00}}, /* Origin */
297 { 0x4803, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x02,0x04,0x00,0x00}}, /* Sequence reference */
298 // Sequence
299 { 0x0201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x07,0x01,0x00,0x00,0x00,0x00,0x00}}, /* Data Definition UL */
300 { 0x0202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x02,0x01,0x01,0x03,0x00,0x00}}, /* Duration */
301 { 0x1001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x06,0x09,0x00,0x00}}, /* Structural Components reference array */
302 // Source Clip
303 { 0x1201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x04,0x00,0x00}}, /* Start position */
304 { 0x1101, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x01,0x00,0x00,0x00}}, /* SourcePackageID */
305 { 0x1102, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x03,0x02,0x00,0x00,0x00}}, /* SourceTrackID */
306 // Timecode Component
307 { 0x1501, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x07,0x02,0x01,0x03,0x01,0x05,0x00,0x00}}, /* Start Time Code */
308 { 0x1502, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x04,0x01,0x01,0x02,0x06,0x00,0x00}}, /* Rounded Time Code Base */
309 { 0x1503, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x04,0x01,0x01,0x05,0x00,0x00,0x00}}, /* Drop Frame */
310 // File Descriptor
311 { 0x3F01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x04,0x06,0x0B,0x00,0x00}}, /* Sub Descriptors reference array */
312 { 0x3006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x06,0x01,0x01,0x03,0x05,0x00,0x00,0x00}}, /* Linked Track ID */
313 { 0x3001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x01,0x00,0x00,0x00,0x00}}, /* SampleRate */
314 { 0x3002, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x06,0x01,0x02,0x00,0x00,0x00,0x00}}, /* ContainerDuration */
315 { 0x3004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x06,0x01,0x01,0x04,0x01,0x02,0x00,0x00}}, /* Essence Container */
316 // Generic Picture Essence Descriptor
317 { 0x320C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Frame Layout */
318 { 0x320D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x02,0x05,0x00,0x00,0x00}}, /* Video Line Map */
319 { 0x3203, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x02,0x00,0x00,0x00}}, /* Stored Width */
320 { 0x3202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x02,0x01,0x00,0x00,0x00}}, /* Stored Height */
321 { 0x3216, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x03,0x02,0x08,0x00,0x00,0x00}}, /* Stored F2 Offset */
322 { 0x3205, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x08,0x00,0x00,0x00}}, /* Sampled Width */
323 { 0x3204, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x07,0x00,0x00,0x00}}, /* Sampled Height */
324 { 0x3206, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x09,0x00,0x00,0x00}}, /* Sampled X Offset */
325 { 0x3207, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0A,0x00,0x00,0x00}}, /* Sampled Y Offset */
326 { 0x3209, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0C,0x00,0x00,0x00}}, /* Display Width */
327 { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */
328 { 0x320A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0D,0x00,0x00,0x00}}, /* Display X offset */
329 { 0x320B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0E,0x00,0x00,0x00}}, /* Presentation Y offset */
330 { 0x3217, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x03,0x02,0x07,0x00,0x00,0x00}}, /* Display F2 offset */
331 { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */
332 { 0x3210, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x02,0x01,0x01,0x01,0x02,0x00}}, /* Transfer characteristic */
333 { 0x321A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x02,0x01,0x01,0x03,0x01,0x00}}, /* Coding Equations (color space) */
334 { 0x3219, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x09,0x04,0x01,0x02,0x01,0x01,0x06,0x01,0x00}}, /* Color Primaries */
335 { 0x3213, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x18,0x01,0x02,0x00,0x00,0x00,0x00}}, /* Image Start Offset */
336 { 0x3214, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x18,0x01,0x03,0x00,0x00,0x00,0x00}}, /* Image End Offset */
337 { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */
338 { 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */
339 { 0x3215, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x05,0x01,0x13,0x00,0x00,0x00,0x00}}, /* Signal Standard */
340 // CDCI Picture Essence Descriptor
341 { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */
342 { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */
343 { 0x3308, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x01,0x10,0x00,0x00,0x00}}, /* Vertical Subsampling */
344 { 0x3303, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x06,0x00,0x00,0x00}}, /* Color Siting */
345 { 0x3307, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x18,0x01,0x04,0x00,0x00,0x00,0x00}}, /* Padding Bits */
346 { 0x3304, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x03,0x03,0x00,0x00,0x00}}, /* Black Ref level */
347 { 0x3305, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x03,0x04,0x00,0x00,0x00}}, /* White Ref level */
348 { 0x3306, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x05,0x00,0x00,0x00}}, /* Color Range */
349 // Generic Sound Essence Descriptor
350 { 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
351 { 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
352 { 0x3D04, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x02,0x01,0x01,0x03,0x00,0x00,0x00}}, /* Audio Ref Level */
353 { 0x3D07, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x01,0x01,0x04,0x00,0x00,0x00}}, /* ChannelCount */
354 { 0x3D01, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x03,0x04,0x00,0x00,0x00}}, /* Quantization bits */
355 { 0x3D06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x02,0x04,0x02,0x00,0x00,0x00,0x00}}, /* Sound Essence Compression */
356 // Index Table Segment
357 { 0x3F0B, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x05,0x30,0x04,0x06,0x00,0x00,0x00,0x00}}, /* Index Edit Rate */
358 { 0x3F0C, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x01,0x03,0x01,0x0A,0x00,0x00}}, /* Index Start Position */
359 { 0x3F0D, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x07,0x02,0x02,0x01,0x01,0x02,0x00,0x00}}, /* Index Duration */
360 { 0x3F05, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x06,0x02,0x01,0x00,0x00,0x00,0x00}}, /* Edit Unit Byte Count */
361 { 0x3F06, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x01,0x03,0x04,0x05,0x00,0x00,0x00,0x00}}, /* IndexSID */
362 { 0x3F08, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x04,0x04,0x01,0x01,0x00,0x00,0x00}}, /* Slice Count */
363 { 0x3F09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x01,0x06,0x00,0x00,0x00}}, /* Delta Entry Array */
364 { 0x3F0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x04,0x04,0x02,0x05,0x00,0x00,0x00}}, /* Index Entry Array */
365 // MPEG video Descriptor
366 { 0x8000, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0B,0x00,0x00}}, /* BitRate */
367 { 0x8003, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x05,0x00,0x00}}, /* LowDelay */
368 { 0x8004, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x06,0x00,0x00}}, /* ClosedGOP */
369 { 0x8006, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x08,0x00,0x00}}, /* MaxGOP */
370 { 0x8007, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x0A,0x00,0x00}}, /* ProfileAndLevel */
371 { 0x8008, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x01,0x06,0x02,0x01,0x09,0x00,0x00}}, /* BPictureCount */
372 // Wave Audio Essence Descriptor
373 { 0x3D09, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x03,0x05,0x00,0x00,0x00}}, /* Average Bytes Per Second */
374 { 0x3D0A, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x02,0x01,0x00,0x00,0x00}}, /* Block Align */
375 // mxf_user_comments_local_tag
376 { 0x4406, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x0C,0x00,0x00,0x00}}, /* User Comments */
377 { 0x5001, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x09,0x01,0x00,0x00}}, /* Name */
378 { 0x5003, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x03,0x02,0x01,0x02,0x0A,0x01,0x00,0x00}}, /* Value */
379 // mxf_avc_subdescriptor_local_tags
380 { 0x8100, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x09,0x06,0x01,0x01,0x04,0x06,0x10,0x00,0x00}}, /* SubDescriptors */
381 { 0x8200, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x0E,0x04,0x01,0x06,0x06,0x01,0x0E,0x00,0x00}}, /* AVC Decoding Delay */
382 { 0x8201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x0E,0x04,0x01,0x06,0x06,0x01,0x0A,0x00,0x00}}, /* AVC Profile */
383 { 0x8202, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x0E,0x04,0x01,0x06,0x06,0x01,0x0D,0x00,0x00}}, /* AVC Level */
384 // ff_mxf_mastering_display_local_tags
385 { 0x8301, FF_MXF_MasteringDisplayPrimaries },
386 { 0x8302, FF_MXF_MasteringDisplayWhitePointChromaticity },
387 { 0x8303, FF_MXF_MasteringDisplayMaximumLuminance },
388 { 0x8304, FF_MXF_MasteringDisplayMinimumLuminance },
389 };
390
391 #define MXF_NUM_TAGS FF_ARRAY_ELEMS(mxf_local_tag_batch)
392
393 typedef struct MXFContext {
394 AVClass *av_class;
395 int64_t footer_partition_offset;
396 int essence_container_count;
397 AVRational time_base;
398 int header_written;
399 MXFIndexEntry *index_entries;
400 unsigned edit_units_count;
401 uint64_t timestamp; ///< timestamp, as year(16),month(8),day(8),hour(8),minutes(8),msec/4(8)
402 uint8_t slice_count; ///< index slice count minus 1 (1 if no audio, 0 otherwise)
403 int last_indexed_edit_unit;
404 uint64_t *body_partition_offset;
405 unsigned body_partitions_count;
406 int last_key_index; ///< index of last key frame
407 uint64_t duration;
408 AVTimecode tc; ///< timecode context
409 AVStream *timecode_track;
410 int timecode_base; ///< rounded time code base (25 or 30)
411 int edit_unit_byte_count; ///< fixed edit unit byte count
412 int content_package_rate; ///< content package rate in system element, see SMPTE 326M
413 uint64_t body_offset;
414 uint32_t instance_number;
415 uint8_t umid[16]; ///< unique material identifier
416 int channel_count;
417 int signal_standard;
418 uint32_t tagged_value_count;
419 AVRational audio_edit_rate;
420 int store_user_comments;
421 int track_instance_count; // used to generate MXFTrack uuids
422 int cbr_index; ///< use a constant bitrate index
423 uint8_t unused_tags[MXF_NUM_TAGS]; ///< local tags that we know will not be used
424 } MXFContext;
425
mxf_write_uuid(AVIOContext * pb,enum MXFMetadataSetType type,int value)426 static void mxf_write_uuid(AVIOContext *pb, enum MXFMetadataSetType type, int value)
427 {
428 avio_write(pb, uuid_base, 12);
429 avio_wb16(pb, type);
430 avio_wb16(pb, value);
431 }
432
mxf_write_umid(AVFormatContext * s,int type)433 static void mxf_write_umid(AVFormatContext *s, int type)
434 {
435 MXFContext *mxf = s->priv_data;
436 avio_write(s->pb, umid_ul, 13);
437 avio_wb24(s->pb, mxf->instance_number);
438 avio_write(s->pb, mxf->umid, 15);
439 avio_w8(s->pb, type);
440 }
441
mxf_write_refs_count(AVIOContext * pb,int ref_count)442 static void mxf_write_refs_count(AVIOContext *pb, int ref_count)
443 {
444 avio_wb32(pb, ref_count);
445 avio_wb32(pb, 16);
446 }
447
klv_ber_length(uint64_t len)448 static int klv_ber_length(uint64_t len)
449 {
450 if (len < 128)
451 return 1;
452 else
453 return (av_log2(len) >> 3) + 2;
454 }
455
klv_encode_ber_length(AVIOContext * pb,uint64_t len)456 static int klv_encode_ber_length(AVIOContext *pb, uint64_t len)
457 {
458 // Determine the best BER size
459 int size = klv_ber_length(len);
460 if (size == 1) {
461 //short form
462 avio_w8(pb, len);
463 return 1;
464 }
465
466 size --;
467 // long form
468 avio_w8(pb, 0x80 + size);
469 while(size) {
470 size--;
471 avio_w8(pb, len >> 8 * size & 0xff);
472 }
473 return 0;
474 }
475
klv_encode_ber4_length(AVIOContext * pb,int len)476 static void klv_encode_ber4_length(AVIOContext *pb, int len)
477 {
478 avio_w8(pb, 0x80 + 3);
479 avio_wb24(pb, len);
480 }
481
klv_encode_ber9_length(AVIOContext * pb,uint64_t len)482 static void klv_encode_ber9_length(AVIOContext *pb, uint64_t len)
483 {
484 avio_w8(pb, 0x80 + 8);
485 avio_wb64(pb, len);
486 }
487
488 /*
489 * Get essence container ul index
490 */
mxf_get_essence_container_ul_index(enum AVCodecID id)491 static int mxf_get_essence_container_ul_index(enum AVCodecID id)
492 {
493 int i;
494 for (i = 0; mxf_essence_mappings[i].id; i++)
495 if (mxf_essence_mappings[i].id == id)
496 return mxf_essence_mappings[i].index;
497 return -1;
498 }
499
mxf_lookup_local_tag(int tag)500 static const MXFLocalTagPair* mxf_lookup_local_tag(int tag)
501 {
502 for (int i = 0; i < MXF_NUM_TAGS; i++) {
503 if (mxf_local_tag_batch[i].local_tag == tag) {
504 return &mxf_local_tag_batch[i];
505 }
506 }
507
508 // this assert can only be hit during development
509 av_assert0(0 && "you forgot to add your new tag to mxf_local_tag_batch");
510 }
511
mxf_mark_tag_unused(MXFContext * mxf,int tag)512 static void mxf_mark_tag_unused(MXFContext *mxf, int tag)
513 {
514 const MXFLocalTagPair *pair = mxf_lookup_local_tag(tag);
515 mxf->unused_tags[pair - mxf_local_tag_batch] = 1;
516 }
517
mxf_write_primer_pack(AVFormatContext * s)518 static void mxf_write_primer_pack(AVFormatContext *s)
519 {
520 MXFContext *mxf = s->priv_data;
521 AVIOContext *pb = s->pb;
522 int local_tag_number = MXF_NUM_TAGS, i;
523 int will_have_avc_tags = 0, will_have_mastering_tags = 0;
524
525 for (i = 0; i < s->nb_streams; i++) {
526 MXFStreamContext *sc = s->streams[i]->priv_data;
527 if (s->streams[i]->codecpar->codec_id == AV_CODEC_ID_H264 && !sc->avc_intra) {
528 will_have_avc_tags = 1;
529 }
530 if (av_stream_get_side_data(s->streams[i], AV_PKT_DATA_MASTERING_DISPLAY_METADATA, NULL)) {
531 will_have_mastering_tags = 1;
532 }
533 }
534
535 if (!mxf->store_user_comments) {
536 mxf_mark_tag_unused(mxf, 0x4406);
537 mxf_mark_tag_unused(mxf, 0x5001);
538 mxf_mark_tag_unused(mxf, 0x5003);
539 }
540
541 if (!will_have_avc_tags) {
542 mxf_mark_tag_unused(mxf, 0x8100);
543 mxf_mark_tag_unused(mxf, 0x8200);
544 mxf_mark_tag_unused(mxf, 0x8201);
545 mxf_mark_tag_unused(mxf, 0x8202);
546 }
547
548 if (!will_have_mastering_tags) {
549 mxf_mark_tag_unused(mxf, 0x8301);
550 mxf_mark_tag_unused(mxf, 0x8302);
551 mxf_mark_tag_unused(mxf, 0x8303);
552 mxf_mark_tag_unused(mxf, 0x8304);
553 }
554
555 for (i = 0; i < MXF_NUM_TAGS; i++) {
556 if (mxf->unused_tags[i]) {
557 local_tag_number--;
558 }
559 }
560
561 avio_write(pb, primer_pack_key, 16);
562 klv_encode_ber_length(pb, local_tag_number * 18 + 8);
563
564 avio_wb32(pb, local_tag_number); // local_tag num
565 avio_wb32(pb, 18); // item size, always 18 according to the specs
566
567 for (i = 0; i < MXF_NUM_TAGS; i++) {
568 if (mxf->unused_tags[i] == 0) {
569 avio_wb16(pb, mxf_local_tag_batch[i].local_tag);
570 avio_write(pb, mxf_local_tag_batch[i].uid, 16);
571 }
572 }
573 }
574
mxf_write_local_tag(AVFormatContext * s,int size,int tag)575 static void mxf_write_local_tag(AVFormatContext *s, int size, int tag)
576 {
577 MXFContext *mxf = s->priv_data;
578 AVIOContext *pb = s->pb;
579 const MXFLocalTagPair *pair = mxf_lookup_local_tag(tag);
580
581 // make sure the tag was not declared unnecessary upfront
582 av_assert0(mxf->unused_tags[pair - mxf_local_tag_batch] == 0);
583
584 avio_wb16(pb, tag);
585 avio_wb16(pb, size);
586 }
587
mxf_write_metadata_key(AVIOContext * pb,unsigned int value)588 static void mxf_write_metadata_key(AVIOContext *pb, unsigned int value)
589 {
590 avio_write(pb, header_metadata_key, 13);
591 avio_wb24(pb, value);
592 }
593
mxf_get_codec_ul_by_id(const MXFCodecUL * uls,int id)594 static const MXFCodecUL *mxf_get_codec_ul_by_id(const MXFCodecUL *uls, int id)
595 {
596 while (uls->uid[0]) {
597 if (id == uls->id)
598 break;
599 uls++;
600 }
601 return uls;
602 }
603
604 //one EC -> one descriptor. N ECs -> MultipleDescriptor + N descriptors
605 #define DESCRIPTOR_COUNT(essence_container_count) \
606 (essence_container_count > 1 ? essence_container_count + 1 : essence_container_count)
607
mxf_write_essence_container_refs(AVFormatContext * s)608 static void mxf_write_essence_container_refs(AVFormatContext *s)
609 {
610 MXFContext *c = s->priv_data;
611 AVIOContext *pb = s->pb;
612 int i;
613
614 mxf_write_refs_count(pb, DESCRIPTOR_COUNT(c->essence_container_count));
615 av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count);
616 for (i = 0; i < s->nb_streams; i++) {
617 MXFStreamContext *sc = s->streams[i]->priv_data;
618 // check first track of essence container type and only write it once
619 if (sc->track_essence_element_key[15] != 0)
620 continue;
621 avio_write(pb, *sc->container_ul, 16);
622 if (c->essence_container_count == 1)
623 break;
624 }
625
626 if (c->essence_container_count > 1)
627 avio_write(pb, multiple_desc_ul, 16);
628 }
629
mxf_write_preface(AVFormatContext * s)630 static void mxf_write_preface(AVFormatContext *s)
631 {
632 MXFContext *mxf = s->priv_data;
633 AVIOContext *pb = s->pb;
634
635 mxf_write_metadata_key(pb, 0x012f00);
636 PRINT_KEY(s, "preface key", pb->buf_ptr - 16);
637 klv_encode_ber_length(pb, 138 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
638
639 // write preface set uid
640 mxf_write_local_tag(s, 16, 0x3C0A);
641 mxf_write_uuid(pb, Preface, 0);
642 PRINT_KEY(s, "preface uid", pb->buf_ptr - 16);
643
644 // last modified date
645 mxf_write_local_tag(s, 8, 0x3B02);
646 avio_wb64(pb, mxf->timestamp);
647
648 // write version
649 mxf_write_local_tag(s, 2, 0x3B05);
650 avio_wb16(pb, 259); // v1.3
651
652 // Object Model Version
653 mxf_write_local_tag(s, 4, 0x3B07);
654 avio_wb32(pb, 1);
655
656 // write identification_refs
657 mxf_write_local_tag(s, 16 + 8, 0x3B06);
658 mxf_write_refs_count(pb, 1);
659 mxf_write_uuid(pb, Identification, 0);
660
661 // write content_storage_refs
662 mxf_write_local_tag(s, 16, 0x3B03);
663 mxf_write_uuid(pb, ContentStorage, 0);
664
665 // operational pattern
666 mxf_write_local_tag(s, 16, 0x3B09);
667 if (s->oformat == &ff_mxf_opatom_muxer)
668 avio_write(pb, opatom_ul, 16);
669 else
670 avio_write(pb, op1a_ul, 16);
671
672 // write essence_container_refs
673 mxf_write_local_tag(s, 8 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count), 0x3B0A);
674 mxf_write_essence_container_refs(s);
675
676 // write dm_scheme_refs
677 mxf_write_local_tag(s, 8, 0x3B0B);
678 avio_wb64(pb, 0);
679 }
680
681 /*
682 * Returns the length of the UTF-16 string, in 16-bit characters, that would result
683 * from decoding the utf-8 string.
684 */
mxf_utf16len(const char * utf8_str)685 static uint64_t mxf_utf16len(const char *utf8_str)
686 {
687 const uint8_t *q = utf8_str;
688 uint64_t size = 0;
689 while (*q) {
690 uint32_t ch;
691 GET_UTF8(ch, *q++, goto invalid;)
692 if (ch < 0x10000)
693 size++;
694 else
695 size += 2;
696 continue;
697 invalid:
698 av_log(NULL, AV_LOG_ERROR, "Invalid UTF8 sequence in mxf_utf16len\n\n");
699 }
700 size += 1;
701 return size;
702 }
703
704 /*
705 * Returns the calculated length a local tag containing an utf-8 string as utf-16
706 */
mxf_utf16_local_tag_length(const char * utf8_str)707 static int mxf_utf16_local_tag_length(const char *utf8_str)
708 {
709 uint64_t size;
710
711 if (!utf8_str)
712 return 0;
713
714 size = mxf_utf16len(utf8_str);
715 if (size >= UINT16_MAX/2) {
716 av_log(NULL, AV_LOG_ERROR, "utf16 local tag size %"PRIx64" invalid (too large), ignoring\n", size);
717 return 0;
718 }
719
720 return 4 + size * 2;
721 }
722
723 /*
724 * Write a local tag containing an utf-8 string as utf-16
725 */
mxf_write_local_tag_utf16(AVFormatContext * s,int tag,const char * value)726 static void mxf_write_local_tag_utf16(AVFormatContext *s, int tag, const char *value)
727 {
728 AVIOContext *pb = s->pb;
729 uint64_t size = mxf_utf16len(value);
730
731 if (size >= UINT16_MAX/2) {
732 av_log(NULL, AV_LOG_ERROR, "utf16 local tag size %"PRIx64" invalid (too large), ignoring\n", size);
733 return;
734 }
735
736 mxf_write_local_tag(s, size*2, tag);
737 avio_put_str16be(pb, value);
738 }
739
store_version(AVFormatContext * s)740 static void store_version(AVFormatContext *s){
741 AVIOContext *pb = s->pb;
742
743 if (s->flags & AVFMT_FLAG_BITEXACT) {
744 avio_wb16(pb, 0); // major
745 avio_wb16(pb, 0); // minor
746 avio_wb16(pb, 0); // tertiary
747 } else {
748 avio_wb16(pb, LIBAVFORMAT_VERSION_MAJOR); // major
749 avio_wb16(pb, LIBAVFORMAT_VERSION_MINOR); // minor
750 avio_wb16(pb, LIBAVFORMAT_VERSION_MICRO); // tertiary
751 }
752 avio_wb16(pb, 0); // patch
753 avio_wb16(pb, 0); // release
754 }
755
756 #define PLATFORM_IDENT "Lavf " AV_STRINGIFY((OS_NAME))
mxf_write_identification(AVFormatContext * s)757 static void mxf_write_identification(AVFormatContext *s)
758 {
759 MXFContext *mxf = s->priv_data;
760 AVIOContext *pb = s->pb;
761 AVDictionaryEntry *com_entry = av_dict_get(s->metadata, "company_name", NULL, 0);
762 AVDictionaryEntry *product_entry = av_dict_get(s->metadata, "product_name", NULL, 0);
763 AVDictionaryEntry *version_entry = av_dict_get(s->metadata, "product_version", NULL, 0);
764 const char *company = com_entry ? com_entry->value : "FFmpeg";
765 const char *product = product_entry ? product_entry->value : s->oformat != &ff_mxf_opatom_muxer ? "OP1a Muxer" : "OPAtom Muxer";
766 const char *platform = s->flags & AVFMT_FLAG_BITEXACT ? "Lavf" : PLATFORM_IDENT;
767 const char *version = version_entry ? version_entry->value :
768 s->flags & AVFMT_FLAG_BITEXACT ? "0.0.0" :
769 AV_STRINGIFY(LIBAVFORMAT_VERSION);
770 int length;
771
772 mxf_write_metadata_key(pb, 0x013000);
773 PRINT_KEY(s, "identification key", pb->buf_ptr - 16);
774
775 length = 100 +mxf_utf16_local_tag_length(company) +
776 mxf_utf16_local_tag_length(product) +
777 mxf_utf16_local_tag_length(platform) +
778 mxf_utf16_local_tag_length(version);
779 klv_encode_ber_length(pb, length);
780
781 // write uid
782 mxf_write_local_tag(s, 16, 0x3C0A);
783 mxf_write_uuid(pb, Identification, 0);
784 PRINT_KEY(s, "identification uid", pb->buf_ptr - 16);
785
786 // write generation uid
787 mxf_write_local_tag(s, 16, 0x3C09);
788 mxf_write_uuid(pb, Identification, 1);
789 mxf_write_local_tag_utf16(s, 0x3C01, company); // Company Name
790 mxf_write_local_tag_utf16(s, 0x3C02, product); // Product Name
791
792 mxf_write_local_tag(s, 10, 0x3C03); // Product Version
793 store_version(s);
794
795 mxf_write_local_tag_utf16(s, 0x3C04, version); // Version String
796 mxf_write_local_tag_utf16(s, 0x3C08, platform); // Platform
797
798 // write product uid
799 mxf_write_local_tag(s, 16, 0x3C05);
800 mxf_write_uuid(pb, Identification, 2);
801
802 // modification date
803 mxf_write_local_tag(s, 8, 0x3C06);
804 avio_wb64(pb, mxf->timestamp);
805
806 mxf_write_local_tag(s, 10, 0x3C07); // Toolkit Version
807 store_version(s);
808 }
809
mxf_write_content_storage(AVFormatContext * s,MXFPackage * packages,int package_count)810 static void mxf_write_content_storage(AVFormatContext *s, MXFPackage *packages, int package_count)
811 {
812 AVIOContext *pb = s->pb;
813 int i;
814
815 mxf_write_metadata_key(pb, 0x011800);
816 PRINT_KEY(s, "content storage key", pb->buf_ptr - 16);
817 klv_encode_ber_length(pb, 60 + (16 * package_count));
818
819 // write uid
820 mxf_write_local_tag(s, 16, 0x3C0A);
821 mxf_write_uuid(pb, ContentStorage, 0);
822 PRINT_KEY(s, "content storage uid", pb->buf_ptr - 16);
823
824 // write package reference
825 mxf_write_local_tag(s, 16 * package_count + 8, 0x1901);
826 mxf_write_refs_count(pb, package_count);
827 for (i = 0; i < package_count; i++) {
828 mxf_write_uuid(pb, packages[i].type, packages[i].instance);
829 }
830
831 // write essence container data
832 mxf_write_local_tag(s, 8 + 16, 0x1902);
833 mxf_write_refs_count(pb, 1);
834 mxf_write_uuid(pb, EssenceContainerData, 0);
835 }
836
mxf_write_track(AVFormatContext * s,AVStream * st,MXFPackage * package)837 static void mxf_write_track(AVFormatContext *s, AVStream *st, MXFPackage *package)
838 {
839 MXFContext *mxf = s->priv_data;
840 AVIOContext *pb = s->pb;
841 MXFStreamContext *sc = st->priv_data;
842
843 mxf_write_metadata_key(pb, 0x013b00);
844 PRINT_KEY(s, "track key", pb->buf_ptr - 16);
845 klv_encode_ber_length(pb, 80);
846
847 // write track uid
848 mxf_write_local_tag(s, 16, 0x3C0A);
849 mxf_write_uuid(pb, Track, mxf->track_instance_count);
850 PRINT_KEY(s, "track uid", pb->buf_ptr - 16);
851
852 // write track id
853 mxf_write_local_tag(s, 4, 0x4801);
854 avio_wb32(pb, st->index+2);
855
856 // write track number
857 mxf_write_local_tag(s, 4, 0x4804);
858 if (package->type == MaterialPackage)
859 avio_wb32(pb, 0); // track number of material package is 0
860 else
861 avio_write(pb, sc->track_essence_element_key + 12, 4);
862
863 // write edit rate
864 mxf_write_local_tag(s, 8, 0x4B01);
865
866 if (st == mxf->timecode_track && s->oformat == &ff_mxf_opatom_muxer) {
867 avio_wb32(pb, mxf->tc.rate.num);
868 avio_wb32(pb, mxf->tc.rate.den);
869 } else {
870 avio_wb32(pb, mxf->time_base.den);
871 avio_wb32(pb, mxf->time_base.num);
872 }
873
874 // write origin
875 mxf_write_local_tag(s, 8, 0x4B02);
876 avio_wb64(pb, 0);
877
878 // write sequence refs
879 mxf_write_local_tag(s, 16, 0x4803);
880 mxf_write_uuid(pb, Sequence, mxf->track_instance_count);
881 }
882
883 static const uint8_t smpte_12m_timecode_track_data_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x01,0x03,0x02,0x01,0x01,0x00,0x00,0x00 };
884
mxf_write_common_fields(AVFormatContext * s,AVStream * st)885 static void mxf_write_common_fields(AVFormatContext *s, AVStream *st)
886 {
887 MXFContext *mxf = s->priv_data;
888 AVIOContext *pb = s->pb;
889
890 // find data define uls
891 mxf_write_local_tag(s, 16, 0x0201);
892 if (st == mxf->timecode_track)
893 avio_write(pb, smpte_12m_timecode_track_data_ul, 16);
894 else {
895 const MXFCodecUL *data_def_ul = mxf_get_codec_ul_by_id(ff_mxf_data_definition_uls, st->codecpar->codec_type);
896 avio_write(pb, data_def_ul->uid, 16);
897 }
898
899 // write duration
900 mxf_write_local_tag(s, 8, 0x0202);
901
902 if (st != mxf->timecode_track && s->oformat == &ff_mxf_opatom_muxer && st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
903 avio_wb64(pb, mxf->body_offset / mxf->edit_unit_byte_count);
904 } else {
905 avio_wb64(pb, mxf->duration);
906 }
907 }
908
mxf_write_sequence(AVFormatContext * s,AVStream * st,MXFPackage * package)909 static void mxf_write_sequence(AVFormatContext *s, AVStream *st, MXFPackage *package)
910 {
911 MXFContext *mxf = s->priv_data;
912 AVIOContext *pb = s->pb;
913 enum MXFMetadataSetType component;
914
915 mxf_write_metadata_key(pb, 0x010f00);
916 PRINT_KEY(s, "sequence key", pb->buf_ptr - 16);
917 klv_encode_ber_length(pb, 80);
918
919 mxf_write_local_tag(s, 16, 0x3C0A);
920 mxf_write_uuid(pb, Sequence, mxf->track_instance_count);
921
922 PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16);
923 mxf_write_common_fields(s, st);
924
925 // write structural component
926 mxf_write_local_tag(s, 16 + 8, 0x1001);
927 mxf_write_refs_count(pb, 1);
928 if (st == mxf->timecode_track)
929 component = TimecodeComponent;
930 else
931 component = SourceClip;
932
933 mxf_write_uuid(pb, component, mxf->track_instance_count);
934 }
935
mxf_write_timecode_component(AVFormatContext * s,AVStream * st,MXFPackage * package)936 static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, MXFPackage *package)
937 {
938 MXFContext *mxf = s->priv_data;
939 AVIOContext *pb = s->pb;
940
941 mxf_write_metadata_key(pb, 0x011400);
942 klv_encode_ber_length(pb, 75);
943
944 // UID
945 mxf_write_local_tag(s, 16, 0x3C0A);
946 mxf_write_uuid(pb, TimecodeComponent, mxf->track_instance_count);
947
948 mxf_write_common_fields(s, st);
949
950 // Start Time Code
951 mxf_write_local_tag(s, 8, 0x1501);
952 avio_wb64(pb, mxf->tc.start);
953
954 // Rounded Time Code Base
955 mxf_write_local_tag(s, 2, 0x1502);
956 avio_wb16(pb, mxf->timecode_base);
957
958 // Drop Frame
959 mxf_write_local_tag(s, 1, 0x1503);
960 avio_w8(pb, !!(mxf->tc.flags & AV_TIMECODE_FLAG_DROPFRAME));
961 }
962
mxf_write_structural_component(AVFormatContext * s,AVStream * st,MXFPackage * package)963 static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, MXFPackage *package)
964 {
965 MXFContext *mxf = s->priv_data;
966 AVIOContext *pb = s->pb;
967 int i;
968
969 mxf_write_metadata_key(pb, 0x011100);
970 PRINT_KEY(s, "sturctural component key", pb->buf_ptr - 16);
971 klv_encode_ber_length(pb, 108);
972
973 // write uid
974 mxf_write_local_tag(s, 16, 0x3C0A);
975 mxf_write_uuid(pb, SourceClip, mxf->track_instance_count);
976
977 PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16);
978 mxf_write_common_fields(s, st);
979
980 // write start_position
981 mxf_write_local_tag(s, 8, 0x1201);
982 avio_wb64(pb, 0);
983
984 // write source package uid, end of the reference
985 mxf_write_local_tag(s, 32, 0x1101);
986 if (!package->ref) {
987 for (i = 0; i < 4; i++)
988 avio_wb64(pb, 0);
989 } else
990 mxf_write_umid(s, package->ref->instance);
991
992 // write source track id
993 mxf_write_local_tag(s, 4, 0x1102);
994 if (package->type == SourcePackage && !package->ref)
995 avio_wb32(pb, 0);
996 else
997 avio_wb32(pb, st->index+2);
998 }
999
mxf_write_tape_descriptor(AVFormatContext * s)1000 static void mxf_write_tape_descriptor(AVFormatContext *s)
1001 {
1002 AVIOContext *pb = s->pb;
1003
1004 mxf_write_metadata_key(pb, 0x012e00);
1005 PRINT_KEY(s, "tape descriptor key", pb->buf_ptr - 16);
1006 klv_encode_ber_length(pb, 20);
1007 mxf_write_local_tag(s, 16, 0x3C0A);
1008 mxf_write_uuid(pb, TapeDescriptor, 0);
1009 PRINT_KEY(s, "tape_desc uid", pb->buf_ptr - 16);
1010 }
1011
1012
mxf_write_multi_descriptor(AVFormatContext * s)1013 static void mxf_write_multi_descriptor(AVFormatContext *s)
1014 {
1015 MXFContext *mxf = s->priv_data;
1016 AVIOContext *pb = s->pb;
1017 const uint8_t *ul;
1018 int i;
1019
1020 mxf_write_metadata_key(pb, 0x014400);
1021 PRINT_KEY(s, "multiple descriptor key", pb->buf_ptr - 16);
1022 klv_encode_ber_length(pb, 64 + 16LL * s->nb_streams);
1023
1024 mxf_write_local_tag(s, 16, 0x3C0A);
1025 mxf_write_uuid(pb, MultipleDescriptor, 0);
1026 PRINT_KEY(s, "multi_desc uid", pb->buf_ptr - 16);
1027
1028 // write sample rate
1029 mxf_write_local_tag(s, 8, 0x3001);
1030 avio_wb32(pb, mxf->time_base.den);
1031 avio_wb32(pb, mxf->time_base.num);
1032
1033 // write essence container ul
1034 mxf_write_local_tag(s, 16, 0x3004);
1035 if (mxf->essence_container_count > 1)
1036 ul = multiple_desc_ul;
1037 else {
1038 MXFStreamContext *sc = s->streams[0]->priv_data;
1039 ul = *sc->container_ul;
1040 }
1041 avio_write(pb, ul, 16);
1042
1043 // write sub descriptor refs
1044 mxf_write_local_tag(s, s->nb_streams * 16 + 8, 0x3F01);
1045 mxf_write_refs_count(pb, s->nb_streams);
1046 for (i = 0; i < s->nb_streams; i++)
1047 mxf_write_uuid(pb, SubDescriptor, i);
1048 }
1049
mxf_write_generic_desc(AVFormatContext * s,AVStream * st,const UID key)1050 static int64_t mxf_write_generic_desc(AVFormatContext *s, AVStream *st, const UID key)
1051 {
1052 MXFContext *mxf = s->priv_data;
1053 MXFStreamContext *sc = st->priv_data;
1054 AVIOContext *pb = s->pb;
1055 int64_t pos;
1056
1057 avio_write(pb, key, 16);
1058 klv_encode_ber4_length(pb, 0);
1059 pos = avio_tell(pb);
1060
1061 mxf_write_local_tag(s, 16, 0x3C0A);
1062 mxf_write_uuid(pb, SubDescriptor, st->index);
1063
1064 mxf_write_local_tag(s, 4, 0x3006);
1065 avio_wb32(pb, st->index+2);
1066
1067 mxf_write_local_tag(s, 8, 0x3001);
1068 if (s->oformat == &ff_mxf_d10_muxer) {
1069 avio_wb32(pb, mxf->time_base.den);
1070 avio_wb32(pb, mxf->time_base.num);
1071 } else {
1072 if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S16LE ||
1073 st->codecpar->codec_id == AV_CODEC_ID_PCM_S24LE) {
1074 avio_wb32(pb, st->codecpar->sample_rate);
1075 avio_wb32(pb, 1);
1076 } else {
1077 avio_wb32(pb, mxf->time_base.den);
1078 avio_wb32(pb, mxf->time_base.num);
1079 }
1080 }
1081
1082 mxf_write_local_tag(s, 16, 0x3004);
1083 avio_write(pb, *sc->container_ul, 16);
1084
1085 return pos;
1086 }
1087
1088 static const UID mxf_s436m_anc_descriptor_key = { 0x06,0x0e,0x2b,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x5c,0x00 };
1089 static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
1090 static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
1091 static const UID mxf_aes3_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x47,0x00 };
1092 static const UID mxf_cdci_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x28,0x00 };
1093 static const UID mxf_generic_sound_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0D,0x01,0x01,0x01,0x01,0x01,0x42,0x00 };
1094
1095 static const UID mxf_avc_subdescriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x6E,0x00 };
1096
rescale_mastering_chroma(AVRational q)1097 static inline uint16_t rescale_mastering_chroma(AVRational q)
1098 {
1099 return av_clip_uint16(av_rescale(q.num, FF_MXF_MASTERING_CHROMA_DEN, q.den));
1100 }
1101
rescale_mastering_luma(AVRational q)1102 static inline uint32_t rescale_mastering_luma(AVRational q)
1103 {
1104 return av_rescale(q.num, FF_MXF_MASTERING_LUMA_DEN, q.den);
1105 }
1106
mxf_write_cdci_common(AVFormatContext * s,AVStream * st,const UID key)1107 static int64_t mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID key)
1108 {
1109 MXFStreamContext *sc = st->priv_data;
1110 AVIOContext *pb = s->pb;
1111 int stored_width = 0;
1112 int stored_height = (st->codecpar->height+15)/16*16;
1113 int display_height;
1114 int f1, f2;
1115 const MXFCodecUL *color_primaries_ul;
1116 const MXFCodecUL *color_trc_ul;
1117 const MXFCodecUL *color_space_ul;
1118 int64_t pos = mxf_write_generic_desc(s, st, key);
1119 uint8_t *side_data;
1120
1121 color_primaries_ul = mxf_get_codec_ul_by_id(ff_mxf_color_primaries_uls, st->codecpar->color_primaries);
1122 color_trc_ul = mxf_get_codec_ul_by_id(ff_mxf_color_trc_uls, st->codecpar->color_trc);
1123 color_space_ul = mxf_get_codec_ul_by_id(ff_mxf_color_space_uls, st->codecpar->color_space);
1124
1125 if (st->codecpar->codec_id == AV_CODEC_ID_DVVIDEO) {
1126 if (st->codecpar->height == 1080)
1127 stored_width = 1920;
1128 else if (st->codecpar->height == 720)
1129 stored_width = 1280;
1130 }
1131 if (!stored_width)
1132 stored_width = (st->codecpar->width+15)/16*16;
1133
1134 mxf_write_local_tag(s, 4, 0x3203);
1135 avio_wb32(pb, stored_width);
1136
1137 mxf_write_local_tag(s, 4, 0x3202);
1138 avio_wb32(pb, stored_height>>sc->interlaced);
1139
1140 if (s->oformat == &ff_mxf_d10_muxer) {
1141 //Stored F2 Offset
1142 mxf_write_local_tag(s, 4, 0x3216);
1143 avio_wb32(pb, 0);
1144
1145 //Image Start Offset
1146 mxf_write_local_tag(s, 4, 0x3213);
1147 avio_wb32(pb, 0);
1148
1149 //Image End Offset
1150 mxf_write_local_tag(s, 4, 0x3214);
1151 avio_wb32(pb, 0);
1152 }
1153
1154 //Sampled width
1155 mxf_write_local_tag(s, 4, 0x3205);
1156 avio_wb32(pb, stored_width);
1157
1158 //Samples height
1159 mxf_write_local_tag(s, 4, 0x3204);
1160 avio_wb32(pb, st->codecpar->height>>sc->interlaced);
1161
1162 //Sampled X Offset
1163 mxf_write_local_tag(s, 4, 0x3206);
1164 avio_wb32(pb, 0);
1165
1166 //Sampled Y Offset
1167 mxf_write_local_tag(s, 4, 0x3207);
1168 avio_wb32(pb, 0);
1169
1170 mxf_write_local_tag(s, 4, 0x3209);
1171 avio_wb32(pb, stored_width);
1172
1173 if (st->codecpar->height == 608) // PAL + VBI
1174 display_height = 576;
1175 else if (st->codecpar->height == 512) // NTSC + VBI
1176 display_height = 486;
1177 else
1178 display_height = st->codecpar->height;
1179
1180 mxf_write_local_tag(s, 4, 0x3208);
1181 avio_wb32(pb, display_height>>sc->interlaced);
1182
1183 // display X offset
1184 mxf_write_local_tag(s, 4, 0x320A);
1185 avio_wb32(pb, 0);
1186
1187 // display Y offset
1188 mxf_write_local_tag(s, 4, 0x320B);
1189 avio_wb32(pb, (st->codecpar->height - display_height)>>sc->interlaced);
1190
1191 if (sc->interlaced) {
1192 //Display F2 Offset
1193 mxf_write_local_tag(s, 4, 0x3217);
1194 avio_wb32(pb, -((st->codecpar->height - display_height)&1));
1195 }
1196
1197 // component depth
1198 mxf_write_local_tag(s, 4, 0x3301);
1199 avio_wb32(pb, sc->component_depth);
1200
1201 // horizontal subsampling
1202 mxf_write_local_tag(s, 4, 0x3302);
1203 avio_wb32(pb, sc->h_chroma_sub_sample);
1204
1205 // vertical subsampling
1206 mxf_write_local_tag(s, 4, 0x3308);
1207 avio_wb32(pb, sc->v_chroma_sub_sample);
1208
1209 // color siting
1210 mxf_write_local_tag(s, 1, 0x3303);
1211 avio_w8(pb, sc->color_siting);
1212
1213 // Padding Bits
1214 mxf_write_local_tag(s, 2, 0x3307);
1215 avio_wb16(pb, 0);
1216
1217 if (st->codecpar->color_range != AVCOL_RANGE_UNSPECIFIED) {
1218 int black = 0,
1219 white = (1<<sc->component_depth) - 1,
1220 color = (1<<sc->component_depth);
1221 if (st->codecpar->color_range == AVCOL_RANGE_MPEG) {
1222 black = 1 << (sc->component_depth - 4);
1223 white = 235 << (sc->component_depth - 8);
1224 color = (14 << (sc->component_depth - 4)) + 1;
1225 }
1226 mxf_write_local_tag(s, 4, 0x3304);
1227 avio_wb32(pb, black);
1228 mxf_write_local_tag(s, 4, 0x3305);
1229 avio_wb32(pb, white);
1230 mxf_write_local_tag(s, 4, 0x3306);
1231 avio_wb32(pb, color);
1232 }
1233
1234 if (sc->signal_standard) {
1235 mxf_write_local_tag(s, 1, 0x3215);
1236 avio_w8(pb, sc->signal_standard);
1237 }
1238
1239 // frame layout
1240 mxf_write_local_tag(s, 1, 0x320C);
1241 avio_w8(pb, sc->interlaced);
1242
1243 // video line map
1244 switch (st->codecpar->height) {
1245 case 576: f1 = 23; f2 = st->codecpar->codec_id == AV_CODEC_ID_DVVIDEO ? 335 : 336; break;
1246 case 608: f1 = 7; f2 = 320; break;
1247 case 480: f1 = 20; f2 = st->codecpar->codec_id == AV_CODEC_ID_DVVIDEO ? 285 : 283; break;
1248 case 512: f1 = 7; f2 = 270; break;
1249 case 720: f1 = 26; f2 = 0; break; // progressive
1250 case 1080: f1 = 21; f2 = 584; break;
1251 default: f1 = 0; f2 = 0; break;
1252 }
1253
1254 if (!sc->interlaced && f2) {
1255 f2 = 0;
1256 f1 *= 2;
1257 }
1258
1259
1260 mxf_write_local_tag(s, 16, 0x320D);
1261 avio_wb32(pb, 2);
1262 avio_wb32(pb, 4);
1263 avio_wb32(pb, f1);
1264 avio_wb32(pb, f2);
1265
1266 mxf_write_local_tag(s, 8, 0x320E);
1267 avio_wb32(pb, sc->aspect_ratio.num);
1268 avio_wb32(pb, sc->aspect_ratio.den);
1269
1270 if (color_primaries_ul->uid[0]) {
1271 mxf_write_local_tag(s, 16, 0x3219);
1272 avio_write(pb, color_primaries_ul->uid, 16);
1273 };
1274
1275 if (color_trc_ul->uid[0]) {
1276 mxf_write_local_tag(s, 16, 0x3210);
1277 avio_write(pb, color_trc_ul->uid, 16);
1278 };
1279
1280 if (color_space_ul->uid[0]) {
1281 mxf_write_local_tag(s, 16, 0x321A);
1282 avio_write(pb, color_space_ul->uid, 16);
1283 };
1284
1285 mxf_write_local_tag(s, 16, 0x3201);
1286 avio_write(pb, *sc->codec_ul, 16);
1287
1288 // Mastering Display metadata
1289 side_data = av_stream_get_side_data(st, AV_PKT_DATA_MASTERING_DISPLAY_METADATA, NULL);
1290 if (side_data) {
1291 const AVMasteringDisplayMetadata *metadata = (const AVMasteringDisplayMetadata*)side_data;
1292 if (metadata->has_primaries) {
1293 mxf_write_local_tag(s, 12, 0x8301);
1294 avio_wb16(pb, rescale_mastering_chroma(metadata->display_primaries[0][0]));
1295 avio_wb16(pb, rescale_mastering_chroma(metadata->display_primaries[0][1]));
1296 avio_wb16(pb, rescale_mastering_chroma(metadata->display_primaries[1][0]));
1297 avio_wb16(pb, rescale_mastering_chroma(metadata->display_primaries[1][1]));
1298 avio_wb16(pb, rescale_mastering_chroma(metadata->display_primaries[2][0]));
1299 avio_wb16(pb, rescale_mastering_chroma(metadata->display_primaries[2][1]));
1300 mxf_write_local_tag(s, 4, 0x8302);
1301 avio_wb16(pb, rescale_mastering_chroma(metadata->white_point[0]));
1302 avio_wb16(pb, rescale_mastering_chroma(metadata->white_point[1]));
1303 } else {
1304 av_log(NULL, AV_LOG_VERBOSE, "Not writing mastering display primaries. Missing data.\n");
1305 }
1306 if (metadata->has_luminance) {
1307 mxf_write_local_tag(s, 4, 0x8303);
1308 avio_wb32(pb, rescale_mastering_luma(metadata->max_luminance));
1309 mxf_write_local_tag(s, 4, 0x8304);
1310 avio_wb32(pb, rescale_mastering_luma(metadata->min_luminance));
1311 } else {
1312 av_log(NULL, AV_LOG_VERBOSE, "Not writing mastering display luminances. Missing data.\n");
1313 }
1314 }
1315
1316 if (sc->interlaced && sc->field_dominance) {
1317 mxf_write_local_tag(s, 1, 0x3212);
1318 avio_w8(pb, sc->field_dominance);
1319 }
1320
1321 if (st->codecpar->codec_id == AV_CODEC_ID_H264 && !sc->avc_intra) {
1322 // write avc sub descriptor ref
1323 mxf_write_local_tag(s, 8 + 16, 0x8100);
1324 mxf_write_refs_count(pb, 1);
1325 mxf_write_uuid(pb, AVCSubDescriptor, 0);
1326 }
1327
1328 return pos;
1329 }
1330
mxf_update_klv_size(AVIOContext * pb,int64_t pos)1331 static void mxf_update_klv_size(AVIOContext *pb, int64_t pos)
1332 {
1333 int64_t cur_pos = avio_tell(pb);
1334 int size = cur_pos - pos;
1335 avio_seek(pb, pos - 4, SEEK_SET);
1336 klv_encode_ber4_length(pb, size);
1337 avio_seek(pb, cur_pos, SEEK_SET);
1338 }
1339
mxf_write_avc_subdesc(AVFormatContext * s,AVStream * st)1340 static void mxf_write_avc_subdesc(AVFormatContext *s, AVStream *st)
1341 {
1342 AVIOContext *pb = s->pb;
1343 int64_t pos;
1344
1345 avio_write(pb, mxf_avc_subdescriptor_key, 16);
1346 klv_encode_ber4_length(pb, 0);
1347 pos = avio_tell(pb);
1348
1349 mxf_write_local_tag(s, 16, 0x3C0A);
1350 mxf_write_uuid(pb, AVCSubDescriptor, 0);
1351
1352 mxf_write_local_tag(s, 1, 0x8200);
1353 avio_w8(pb, 0xFF); // AVC Decoding Delay, unknown
1354
1355 mxf_write_local_tag(s, 1, 0x8201);
1356 avio_w8(pb, st->codecpar->profile); // AVC Profile
1357
1358 mxf_write_local_tag(s, 1, 0x8202);
1359 avio_w8(pb, st->codecpar->level); // AVC Level
1360
1361 mxf_update_klv_size(s->pb, pos);
1362 }
1363
mxf_write_cdci_desc(AVFormatContext * s,AVStream * st)1364 static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st)
1365 {
1366 int64_t pos = mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key);
1367 mxf_update_klv_size(s->pb, pos);
1368
1369 if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
1370 mxf_write_avc_subdesc(s, st);
1371 }
1372 }
1373
mxf_write_h264_desc(AVFormatContext * s,AVStream * st)1374 static void mxf_write_h264_desc(AVFormatContext *s, AVStream *st)
1375 {
1376 MXFStreamContext *sc = st->priv_data;
1377 if (sc->avc_intra) {
1378 mxf_write_mpegvideo_desc(s, st);
1379 } else {
1380 int64_t pos = mxf_write_cdci_common(s, st, mxf_cdci_descriptor_key);
1381 mxf_update_klv_size(s->pb, pos);
1382 mxf_write_avc_subdesc(s, st);
1383 }
1384 }
1385
mxf_write_s436m_anc_desc(AVFormatContext * s,AVStream * st)1386 static void mxf_write_s436m_anc_desc(AVFormatContext *s, AVStream *st)
1387 {
1388 int64_t pos = mxf_write_generic_desc(s, st, mxf_s436m_anc_descriptor_key);
1389 mxf_update_klv_size(s->pb, pos);
1390 }
1391
mxf_write_mpegvideo_desc(AVFormatContext * s,AVStream * st)1392 static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
1393 {
1394 AVIOContext *pb = s->pb;
1395 MXFStreamContext *sc = st->priv_data;
1396 int profile_and_level = (st->codecpar->profile<<4) | st->codecpar->level;
1397 int64_t pos = mxf_write_cdci_common(s, st, mxf_mpegvideo_descriptor_key);
1398
1399 if (st->codecpar->codec_id != AV_CODEC_ID_H264) {
1400 // bit rate
1401 mxf_write_local_tag(s, 4, 0x8000);
1402 avio_wb32(pb, sc->video_bit_rate);
1403
1404 // profile and level
1405 mxf_write_local_tag(s, 1, 0x8007);
1406 if (!st->codecpar->profile)
1407 profile_and_level |= 0x80; // escape bit
1408 avio_w8(pb, profile_and_level);
1409
1410 // low delay
1411 mxf_write_local_tag(s, 1, 0x8003);
1412 avio_w8(pb, sc->low_delay);
1413
1414 // closed gop
1415 mxf_write_local_tag(s, 1, 0x8004);
1416 avio_w8(pb, sc->seq_closed_gop);
1417
1418 // max gop
1419 mxf_write_local_tag(s, 2, 0x8006);
1420 avio_wb16(pb, sc->max_gop);
1421
1422 // b picture count
1423 mxf_write_local_tag(s, 2, 0x8008);
1424 avio_wb16(pb, sc->b_picture_count);
1425 }
1426
1427 mxf_update_klv_size(pb, pos);
1428 }
1429
mxf_write_generic_sound_common(AVFormatContext * s,AVStream * st,const UID key)1430 static int64_t mxf_write_generic_sound_common(AVFormatContext *s, AVStream *st, const UID key)
1431 {
1432 AVIOContext *pb = s->pb;
1433 MXFContext *mxf = s->priv_data;
1434 int show_warnings = !mxf->footer_partition_offset;
1435 int64_t pos = mxf_write_generic_desc(s, st, key);
1436
1437 if (s->oformat == &ff_mxf_opatom_muxer) {
1438 mxf_write_local_tag(s, 8, 0x3002);
1439 avio_wb64(pb, mxf->body_offset / mxf->edit_unit_byte_count);
1440 }
1441
1442 // audio locked
1443 mxf_write_local_tag(s, 1, 0x3D02);
1444 avio_w8(pb, 1);
1445
1446 // write audio sampling rate
1447 mxf_write_local_tag(s, 8, 0x3D03);
1448 avio_wb32(pb, st->codecpar->sample_rate);
1449 avio_wb32(pb, 1);
1450
1451 if (s->oformat == &ff_mxf_d10_muxer) {
1452 mxf_write_local_tag(s, 1, 0x3D04);
1453 avio_w8(pb, 0);
1454 }
1455
1456 mxf_write_local_tag(s, 4, 0x3D07);
1457 if (mxf->channel_count == -1) {
1458 if (show_warnings && (s->oformat == &ff_mxf_d10_muxer) && (st->codecpar->channels != 4) && (st->codecpar->channels != 8))
1459 av_log(s, AV_LOG_WARNING, "the number of audio channels shall be 4 or 8 : the output will not comply to MXF D-10 specs, use -d10_channelcount to fix this\n");
1460 avio_wb32(pb, st->codecpar->channels);
1461 } else if (s->oformat == &ff_mxf_d10_muxer) {
1462 if (show_warnings && (mxf->channel_count < st->codecpar->channels))
1463 av_log(s, AV_LOG_WARNING, "d10_channelcount < actual number of audio channels : some channels will be discarded\n");
1464 if (show_warnings && (mxf->channel_count != 4) && (mxf->channel_count != 8))
1465 av_log(s, AV_LOG_WARNING, "d10_channelcount shall be set to 4 or 8 : the output will not comply to MXF D-10 specs\n");
1466 avio_wb32(pb, mxf->channel_count);
1467 } else {
1468 avio_wb32(pb, st->codecpar->channels);
1469 }
1470
1471 mxf_write_local_tag(s, 4, 0x3D01);
1472 avio_wb32(pb, av_get_bits_per_sample(st->codecpar->codec_id));
1473
1474 return pos;
1475 }
1476
mxf_write_wav_common(AVFormatContext * s,AVStream * st,const UID key)1477 static int64_t mxf_write_wav_common(AVFormatContext *s, AVStream *st, const UID key)
1478 {
1479 AVIOContext *pb = s->pb;
1480 int64_t pos = mxf_write_generic_sound_common(s, st, key);
1481
1482 mxf_write_local_tag(s, 2, 0x3D0A);
1483 avio_wb16(pb, st->codecpar->block_align);
1484
1485 // avg bytes per sec
1486 mxf_write_local_tag(s, 4, 0x3D09);
1487 avio_wb32(pb, st->codecpar->block_align*st->codecpar->sample_rate);
1488
1489 return pos;
1490 }
1491
mxf_write_wav_desc(AVFormatContext * s,AVStream * st)1492 static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
1493 {
1494 int64_t pos = mxf_write_wav_common(s, st, mxf_wav_descriptor_key);
1495 mxf_update_klv_size(s->pb, pos);
1496 }
1497
mxf_write_aes3_desc(AVFormatContext * s,AVStream * st)1498 static void mxf_write_aes3_desc(AVFormatContext *s, AVStream *st)
1499 {
1500 int64_t pos = mxf_write_wav_common(s, st, mxf_aes3_descriptor_key);
1501 mxf_update_klv_size(s->pb, pos);
1502 }
1503
mxf_write_generic_sound_desc(AVFormatContext * s,AVStream * st)1504 static void mxf_write_generic_sound_desc(AVFormatContext *s, AVStream *st)
1505 {
1506 int64_t pos = mxf_write_generic_sound_common(s, st, mxf_generic_sound_descriptor_key);
1507 mxf_update_klv_size(s->pb, pos);
1508 }
1509
1510 static const uint8_t mxf_indirect_value_utf16le[] = { 0x4c,0x00,0x02,0x10,0x01,0x00,0x00,0x00,0x00,0x06,0x0e,0x2b,0x34,0x01,0x04,0x01,0x01 };
1511
mxf_write_tagged_value(AVFormatContext * s,const char * name,const char * value)1512 static int mxf_write_tagged_value(AVFormatContext *s, const char* name, const char* value)
1513 {
1514 MXFContext *mxf = s->priv_data;
1515 AVIOContext *pb = s->pb;
1516 int name_size = mxf_utf16_local_tag_length(name);
1517 int indirect_value_size = 13 + mxf_utf16_local_tag_length(value);
1518
1519 if (!name_size || indirect_value_size == 13)
1520 return 1;
1521
1522 mxf_write_metadata_key(pb, 0x013f00);
1523 klv_encode_ber_length(pb, 24 + name_size + indirect_value_size);
1524
1525 // write instance UID
1526 mxf_write_local_tag(s, 16, 0x3C0A);
1527 mxf_write_uuid(pb, TaggedValue, mxf->tagged_value_count);
1528
1529 // write name
1530 mxf_write_local_tag_utf16(s, 0x5001, name); // Name
1531
1532 // write indirect value
1533 mxf_write_local_tag(s, indirect_value_size, 0x5003);
1534 avio_write(pb, mxf_indirect_value_utf16le, 17);
1535 avio_put_str16le(pb, value);
1536
1537 mxf->tagged_value_count++;
1538 return 0;
1539 }
1540
mxf_write_user_comments(AVFormatContext * s,const AVDictionary * m)1541 static int mxf_write_user_comments(AVFormatContext *s, const AVDictionary *m)
1542 {
1543 MXFContext *mxf = s->priv_data;
1544 AVDictionaryEntry *t = NULL;
1545 int count = 0;
1546
1547 while ((t = av_dict_get(m, "comment_", t, AV_DICT_IGNORE_SUFFIX))) {
1548 if (mxf->tagged_value_count >= UINT16_MAX) {
1549 av_log(s, AV_LOG_ERROR, "too many tagged values, ignoring remaining\n");
1550 return count;
1551 }
1552
1553 if (mxf_write_tagged_value(s, t->key + 8, t->value) == 0)
1554 count++;
1555 }
1556 return count;
1557 }
1558
mxf_write_package(AVFormatContext * s,MXFPackage * package)1559 static void mxf_write_package(AVFormatContext *s, MXFPackage *package)
1560 {
1561 MXFContext *mxf = s->priv_data;
1562 AVIOContext *pb = s->pb;
1563 int i, track_count = s->nb_streams+1;
1564 int name_size = mxf_utf16_local_tag_length(package->name);
1565 int user_comment_count = 0;
1566
1567 if (package->type == MaterialPackage) {
1568 if (mxf->store_user_comments)
1569 user_comment_count = mxf_write_user_comments(s, s->metadata);
1570 mxf_write_metadata_key(pb, 0x013600);
1571 PRINT_KEY(s, "Material Package key", pb->buf_ptr - 16);
1572 klv_encode_ber_length(pb, 92 + name_size + (16*track_count) + (16*user_comment_count) + 12LL*mxf->store_user_comments);
1573 } else {
1574 mxf_write_metadata_key(pb, 0x013700);
1575 PRINT_KEY(s, "Source Package key", pb->buf_ptr - 16);
1576 klv_encode_ber_length(pb, 112 + name_size + (16*track_count) + 12LL*mxf->store_user_comments); // 20 bytes length for descriptor reference
1577 }
1578
1579 // write uid
1580 mxf_write_local_tag(s, 16, 0x3C0A);
1581 mxf_write_uuid(pb, package->type, package->instance);
1582 av_log(s, AV_LOG_DEBUG, "package type:%d\n", package->type);
1583 PRINT_KEY(s, "package uid", pb->buf_ptr - 16);
1584
1585 // write package umid
1586 mxf_write_local_tag(s, 32, 0x4401);
1587 mxf_write_umid(s, package->instance);
1588 PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16);
1589
1590 // package name
1591 if (name_size)
1592 mxf_write_local_tag_utf16(s, 0x4402, package->name);
1593
1594 // package creation date
1595 mxf_write_local_tag(s, 8, 0x4405);
1596 avio_wb64(pb, mxf->timestamp);
1597
1598 // package modified date
1599 mxf_write_local_tag(s, 8, 0x4404);
1600 avio_wb64(pb, mxf->timestamp);
1601
1602 // write track refs
1603 mxf_write_local_tag(s, track_count*16 + 8, 0x4403);
1604 mxf_write_refs_count(pb, track_count);
1605 // these are the uuids of the tracks the will be written in mxf_write_track
1606 for (i = 0; i < track_count; i++)
1607 mxf_write_uuid(pb, Track, mxf->track_instance_count + i);
1608
1609 // write user comment refs
1610 if (mxf->store_user_comments) {
1611 mxf_write_local_tag(s, user_comment_count*16 + 8, 0x4406);
1612 mxf_write_refs_count(pb, user_comment_count);
1613 for (i = 0; i < user_comment_count; i++)
1614 mxf_write_uuid(pb, TaggedValue, mxf->tagged_value_count - user_comment_count + i);
1615 }
1616
1617 // write multiple descriptor reference
1618 if (package->type == SourcePackage && package->instance == 1) {
1619 mxf_write_local_tag(s, 16, 0x4701);
1620 if (s->nb_streams > 1) {
1621 mxf_write_uuid(pb, MultipleDescriptor, 0);
1622 mxf_write_multi_descriptor(s);
1623 } else
1624 mxf_write_uuid(pb, SubDescriptor, 0);
1625 } else if (package->type == SourcePackage && package->instance == 2) {
1626 mxf_write_local_tag(s, 16, 0x4701);
1627 mxf_write_uuid(pb, TapeDescriptor, 0);
1628 mxf_write_tape_descriptor(s);
1629 }
1630
1631 /*
1632 * for every 1 track in a package there is 1 sequence and 1 component.
1633 * all 3 of these elements share the same instance number for generating
1634 * there instance uuids. mxf->track_instance_count stores this value.
1635 * mxf->track_instance_count is incremented after a group of all 3 of
1636 * these elements are written.
1637 */
1638
1639 // write timecode track
1640 mxf_write_track(s, mxf->timecode_track, package);
1641 mxf_write_sequence(s, mxf->timecode_track, package);
1642 mxf_write_timecode_component(s, mxf->timecode_track, package);
1643 mxf->track_instance_count++;
1644
1645 for (i = 0; i < s->nb_streams; i++) {
1646 AVStream *st = s->streams[i];
1647 mxf_write_track(s, st, package);
1648 mxf_write_sequence(s, st, package);
1649 mxf_write_structural_component(s, st, package);
1650 mxf->track_instance_count++;
1651
1652 if (package->type == SourcePackage && package->instance == 1) {
1653 MXFStreamContext *sc = st->priv_data;
1654 mxf_essence_container_uls[sc->index].write_desc(s, st);
1655 }
1656 }
1657 }
1658
mxf_write_essence_container_data(AVFormatContext * s)1659 static int mxf_write_essence_container_data(AVFormatContext *s)
1660 {
1661 AVIOContext *pb = s->pb;
1662
1663 mxf_write_metadata_key(pb, 0x012300);
1664 klv_encode_ber_length(pb, 72);
1665
1666 mxf_write_local_tag(s, 16, 0x3C0A); // Instance UID
1667 mxf_write_uuid(pb, EssenceContainerData, 0);
1668
1669 mxf_write_local_tag(s, 32, 0x2701); // Linked Package UID
1670 mxf_write_umid(s, 1);
1671
1672 mxf_write_local_tag(s, 4, 0x3F07); // BodySID
1673 avio_wb32(pb, 1);
1674
1675 mxf_write_local_tag(s, 4, 0x3F06); // IndexSID
1676 avio_wb32(pb, 2);
1677
1678 return 0;
1679 }
1680
mxf_write_header_metadata_sets(AVFormatContext * s)1681 static int mxf_write_header_metadata_sets(AVFormatContext *s)
1682 {
1683 MXFContext *mxf = s->priv_data;
1684 AVDictionaryEntry *entry = NULL;
1685 AVStream *st = NULL;
1686 int i;
1687 MXFPackage packages[3] = {{0}};
1688 int package_count = 2;
1689 packages[0].type = MaterialPackage;
1690 packages[1].type = SourcePackage;
1691 packages[1].instance = 1;
1692 packages[0].ref = &packages[1];
1693
1694
1695 if (entry = av_dict_get(s->metadata, "material_package_name", NULL, 0))
1696 packages[0].name = entry->value;
1697
1698 if (entry = av_dict_get(s->metadata, "file_package_name", NULL, 0)) {
1699 packages[1].name = entry->value;
1700 } else {
1701 /* check if any of the streams contain a file_package_name */
1702 for (i = 0; i < s->nb_streams; i++) {
1703 st = s->streams[i];
1704 if (entry = av_dict_get(st->metadata, "file_package_name", NULL, 0)) {
1705 packages[1].name = entry->value;
1706 break;
1707 }
1708 }
1709 }
1710
1711 entry = av_dict_get(s->metadata, "reel_name", NULL, 0);
1712 if (entry) {
1713 packages[2].name = entry->value;
1714 packages[2].type = SourcePackage;
1715 packages[2].instance = 2;
1716 packages[1].ref = &packages[2];
1717 package_count = 3;
1718 }
1719
1720 mxf_write_preface(s);
1721 mxf_write_identification(s);
1722 mxf_write_content_storage(s, packages, package_count);
1723 mxf->track_instance_count = 0;
1724 for (i = 0; i < package_count; i++)
1725 mxf_write_package(s, &packages[i]);
1726 mxf_write_essence_container_data(s);
1727 return 0;
1728 }
1729
klv_fill_size(uint64_t size)1730 static unsigned klv_fill_size(uint64_t size)
1731 {
1732 unsigned pad = KAG_SIZE - (size & (KAG_SIZE-1));
1733 if (pad < 20) // smallest fill item possible
1734 return pad + KAG_SIZE;
1735 else
1736 return pad & (KAG_SIZE-1);
1737 }
1738
mxf_write_index_table_segment(AVFormatContext * s)1739 static void mxf_write_index_table_segment(AVFormatContext *s)
1740 {
1741 MXFContext *mxf = s->priv_data;
1742 AVIOContext *pb = s->pb;
1743 int i, j, temporal_reordering = 0;
1744 int key_index = mxf->last_key_index;
1745 int prev_non_b_picture = 0;
1746 int audio_frame_size = 0;
1747 int64_t pos;
1748
1749 av_log(s, AV_LOG_DEBUG, "edit units count %d\n", mxf->edit_units_count);
1750
1751 if (!mxf->edit_units_count && !mxf->edit_unit_byte_count)
1752 return;
1753
1754 avio_write(pb, index_table_segment_key, 16);
1755
1756 klv_encode_ber4_length(pb, 0);
1757 pos = avio_tell(pb);
1758
1759 // instance id
1760 mxf_write_local_tag(s, 16, 0x3C0A);
1761 mxf_write_uuid(pb, IndexTableSegment, 0);
1762
1763 // index edit rate
1764 mxf_write_local_tag(s, 8, 0x3F0B);
1765 avio_wb32(pb, mxf->time_base.den);
1766 avio_wb32(pb, mxf->time_base.num);
1767
1768 // index start position
1769 mxf_write_local_tag(s, 8, 0x3F0C);
1770 avio_wb64(pb, mxf->last_indexed_edit_unit);
1771
1772 // index duration
1773 mxf_write_local_tag(s, 8, 0x3F0D);
1774 if (mxf->edit_unit_byte_count)
1775 avio_wb64(pb, 0); // index table covers whole container
1776 else
1777 avio_wb64(pb, mxf->edit_units_count);
1778
1779 // edit unit byte count
1780 mxf_write_local_tag(s, 4, 0x3F05);
1781 avio_wb32(pb, mxf->edit_unit_byte_count);
1782
1783 // index sid
1784 mxf_write_local_tag(s, 4, 0x3F06);
1785 avio_wb32(pb, 2);
1786
1787 // body sid
1788 mxf_write_local_tag(s, 4, 0x3F07);
1789 avio_wb32(pb, 1);
1790
1791 // real slice count - 1
1792 mxf_write_local_tag(s, 1, 0x3F08);
1793 avio_w8(pb, !mxf->edit_unit_byte_count); // only one slice for CBR
1794
1795 // delta entry array
1796 mxf_write_local_tag(s, 8 + (s->nb_streams+1)*6, 0x3F09);
1797 avio_wb32(pb, s->nb_streams+1); // num of entries
1798 avio_wb32(pb, 6); // size of one entry
1799 // write system item delta entry
1800 avio_w8(pb, 0);
1801 avio_w8(pb, 0); // slice entry
1802 avio_wb32(pb, 0); // element delta
1803 // write each stream delta entry
1804 for (i = 0; i < s->nb_streams; i++) {
1805 AVStream *st = s->streams[i];
1806 MXFStreamContext *sc = st->priv_data;
1807 avio_w8(pb, sc->temporal_reordering);
1808 if (sc->temporal_reordering)
1809 temporal_reordering = 1;
1810 if (mxf->edit_unit_byte_count) {
1811 avio_w8(pb, 0); // slice number
1812 avio_wb32(pb, sc->slice_offset);
1813 } else if (i == 0) { // video track
1814 avio_w8(pb, 0); // slice number
1815 avio_wb32(pb, KAG_SIZE); // system item size including klv fill
1816 } else { // audio or data track
1817 if (!audio_frame_size) {
1818 audio_frame_size = sc->frame_size;
1819 audio_frame_size += klv_fill_size(audio_frame_size);
1820 }
1821 avio_w8(pb, 1);
1822 avio_wb32(pb, (i-1)*audio_frame_size); // element delta
1823 }
1824 }
1825
1826 if (!mxf->edit_unit_byte_count) {
1827 MXFStreamContext *sc = s->streams[0]->priv_data;
1828 mxf_write_local_tag(s, 8 + mxf->edit_units_count*15, 0x3F0A);
1829 avio_wb32(pb, mxf->edit_units_count); // num of entries
1830 avio_wb32(pb, 15); // size of one entry
1831
1832 for (i = 0; i < mxf->edit_units_count; i++) {
1833 int temporal_offset = 0;
1834
1835 if (!(mxf->index_entries[i].flags & 0x33)) { // I-frame
1836 sc->max_gop = FFMAX(sc->max_gop, i - mxf->last_key_index);
1837 mxf->last_key_index = key_index;
1838 key_index = i;
1839 }
1840
1841 if (temporal_reordering) {
1842 int pic_num_in_gop = i - key_index;
1843 if (pic_num_in_gop != mxf->index_entries[i].temporal_ref) {
1844 for (j = key_index; j < mxf->edit_units_count; j++) {
1845 if (pic_num_in_gop == mxf->index_entries[j].temporal_ref)
1846 break;
1847 }
1848 if (j == mxf->edit_units_count)
1849 av_log(s, AV_LOG_WARNING, "missing frames\n");
1850 temporal_offset = j - key_index - pic_num_in_gop;
1851 }
1852 }
1853 avio_w8(pb, temporal_offset);
1854
1855 if ((mxf->index_entries[i].flags & 0x30) == 0x30) { // back and forward prediction
1856 sc->b_picture_count = FFMAX(sc->b_picture_count, i - prev_non_b_picture);
1857 avio_w8(pb, mxf->last_key_index - i);
1858 } else {
1859 avio_w8(pb, key_index - i); // key frame offset
1860 if ((mxf->index_entries[i].flags & 0x20) == 0x20) // only forward
1861 mxf->last_key_index = key_index;
1862 prev_non_b_picture = i;
1863 }
1864
1865 if (!(mxf->index_entries[i].flags & 0x33) && // I-frame
1866 mxf->index_entries[i].flags & 0x40 && !temporal_offset)
1867 mxf->index_entries[i].flags |= 0x80; // random access
1868 avio_w8(pb, mxf->index_entries[i].flags);
1869 // stream offset
1870 avio_wb64(pb, mxf->index_entries[i].offset);
1871 if (s->nb_streams > 1)
1872 avio_wb32(pb, mxf->index_entries[i].slice_offset);
1873 else
1874 avio_wb32(pb, 0);
1875 }
1876
1877 mxf->last_key_index = key_index - mxf->edit_units_count;
1878 mxf->last_indexed_edit_unit += mxf->edit_units_count;
1879 mxf->edit_units_count = 0;
1880 }
1881
1882 mxf_update_klv_size(pb, pos);
1883 }
1884
mxf_write_klv_fill(AVFormatContext * s)1885 static void mxf_write_klv_fill(AVFormatContext *s)
1886 {
1887 unsigned pad = klv_fill_size(avio_tell(s->pb));
1888 if (pad) {
1889 avio_write(s->pb, klv_fill_key, 16);
1890 pad -= 16 + 4;
1891 klv_encode_ber4_length(s->pb, pad);
1892 ffio_fill(s->pb, 0, pad);
1893 av_assert1(!(avio_tell(s->pb) & (KAG_SIZE-1)));
1894 }
1895 }
1896
mxf_write_partition(AVFormatContext * s,int bodysid,int indexsid,const uint8_t * key,int write_metadata)1897 static int mxf_write_partition(AVFormatContext *s, int bodysid,
1898 int indexsid,
1899 const uint8_t *key, int write_metadata)
1900 {
1901 MXFContext *mxf = s->priv_data;
1902 AVIOContext *pb = s->pb;
1903 int64_t header_byte_count_offset;
1904 unsigned index_byte_count = 0;
1905 uint64_t partition_offset = avio_tell(pb);
1906 int err;
1907
1908 if (!mxf->edit_unit_byte_count && mxf->edit_units_count)
1909 index_byte_count = 85 + 12+(s->nb_streams+1)*6 +
1910 12+mxf->edit_units_count*15;
1911 else if (mxf->edit_unit_byte_count && indexsid)
1912 index_byte_count = 80;
1913
1914 if (index_byte_count) {
1915 index_byte_count += 16 + 4; // add encoded ber4 length
1916 index_byte_count += klv_fill_size(index_byte_count);
1917 }
1918
1919 if (key && !memcmp(key, body_partition_key, 16)) {
1920 if ((err = av_reallocp_array(&mxf->body_partition_offset, mxf->body_partitions_count + 1,
1921 sizeof(*mxf->body_partition_offset))) < 0) {
1922 mxf->body_partitions_count = 0;
1923 return err;
1924 }
1925 mxf->body_partition_offset[mxf->body_partitions_count++] = partition_offset;
1926 }
1927
1928 // write klv
1929 if (key)
1930 avio_write(pb, key, 16);
1931 else
1932 avio_write(pb, body_partition_key, 16);
1933
1934 klv_encode_ber4_length(pb, 88 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count));
1935
1936 // write partition value
1937 avio_wb16(pb, 1); // majorVersion
1938 avio_wb16(pb, 3); // minorVersion
1939 avio_wb32(pb, KAG_SIZE); // KAGSize
1940
1941 avio_wb64(pb, partition_offset); // ThisPartition
1942
1943 if (key && !memcmp(key, body_partition_key, 16) && mxf->body_partitions_count > 1)
1944 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-2]); // PreviousPartition
1945 else if (key && !memcmp(key, footer_partition_key, 16) && mxf->body_partitions_count)
1946 avio_wb64(pb, mxf->body_partition_offset[mxf->body_partitions_count-1]); // PreviousPartition
1947 else
1948 avio_wb64(pb, 0);
1949
1950 avio_wb64(pb, mxf->footer_partition_offset); // footerPartition
1951
1952 // set offset
1953 header_byte_count_offset = avio_tell(pb);
1954 avio_wb64(pb, 0); // headerByteCount, update later
1955
1956 // indexTable
1957 avio_wb64(pb, index_byte_count); // indexByteCount
1958 avio_wb32(pb, index_byte_count ? indexsid : 0); // indexSID
1959
1960 // BodyOffset
1961 if (bodysid && mxf->edit_units_count && mxf->body_partitions_count && s->oformat != &ff_mxf_opatom_muxer)
1962 avio_wb64(pb, mxf->body_offset);
1963 else
1964 avio_wb64(pb, 0);
1965
1966 avio_wb32(pb, bodysid); // bodySID
1967
1968 // operational pattern
1969 if (s->oformat == &ff_mxf_opatom_muxer)
1970 avio_write(pb, opatom_ul, 16);
1971 else
1972 avio_write(pb, op1a_ul, 16);
1973
1974 // essence container
1975 mxf_write_essence_container_refs(s);
1976
1977 if (write_metadata) {
1978 // mark the start of the headermetadata and calculate metadata size
1979 int64_t pos, start;
1980 unsigned header_byte_count;
1981
1982 mxf_write_klv_fill(s);
1983 start = avio_tell(s->pb);
1984 mxf_write_primer_pack(s);
1985 mxf_write_klv_fill(s);
1986 mxf_write_header_metadata_sets(s);
1987 pos = avio_tell(s->pb);
1988 header_byte_count = pos - start + klv_fill_size(pos);
1989
1990 // update header_byte_count
1991 avio_seek(pb, header_byte_count_offset, SEEK_SET);
1992 avio_wb64(pb, header_byte_count);
1993 avio_seek(pb, pos, SEEK_SET);
1994 }
1995
1996 if(key)
1997 avio_write_marker(pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT);
1998
1999 return 0;
2000 }
2001
2002 static const struct {
2003 int profile;
2004 UID codec_ul;
2005 } mxf_prores_codec_uls[] = {
2006 { FF_PROFILE_PRORES_PROXY, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x01,0x00 } },
2007 { FF_PROFILE_PRORES_LT, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x02,0x00 } },
2008 { FF_PROFILE_PRORES_STANDARD, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x03,0x00 } },
2009 { FF_PROFILE_PRORES_HQ, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x04,0x00 } },
2010 { FF_PROFILE_PRORES_4444, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x05,0x00 } },
2011 { FF_PROFILE_PRORES_XQ, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x03,0x06,0x06,0x00 } },
2012 };
2013
mxf_parse_prores_frame(AVFormatContext * s,AVStream * st,AVPacket * pkt)2014 static int mxf_parse_prores_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
2015 {
2016 MXFContext *mxf = s->priv_data;
2017 MXFStreamContext *sc = st->priv_data;
2018 int i, profile;
2019
2020 if (mxf->header_written)
2021 return 1;
2022
2023 profile = st->codecpar->profile;
2024 for (i = 0; i < FF_ARRAY_ELEMS(mxf_prores_codec_uls); i++) {
2025 if (profile == mxf_prores_codec_uls[i].profile) {
2026 sc->codec_ul = &mxf_prores_codec_uls[i].codec_ul;
2027 break;
2028 }
2029 }
2030 if (i == FF_ARRAY_ELEMS(mxf_prores_codec_uls))
2031 return 0;
2032
2033 sc->frame_size = pkt->size;
2034
2035 return 1;
2036 }
2037
2038 static const struct {
2039 int cid;
2040 UID codec_ul;
2041 } mxf_dnxhd_codec_uls[] = {
2042 { 1235, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x01,0x00,0x00 } }, // 1080p 10bit HIGH
2043 { 1237, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x03,0x00,0x00 } }, // 1080p 8bit MED
2044 { 1238, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x04,0x00,0x00 } }, // 1080p 8bit HIGH
2045 { 1241, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x07,0x00,0x00 } }, // 1080i 10bit HIGH
2046 { 1242, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x08,0x00,0x00 } }, // 1080i 8bit MED
2047 { 1243, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x09,0x00,0x00 } }, // 1080i 8bit HIGH
2048 { 1244, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x0a,0x00,0x00 } }, // 1080i 8bit TR
2049 { 1250, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x10,0x00,0x00 } }, // 720p 10bit
2050 { 1251, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x11,0x00,0x00 } }, // 720p 8bit HIGH
2051 { 1252, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x12,0x00,0x00 } }, // 720p 8bit MED
2052 { 1253, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x13,0x00,0x00 } }, // 720p 8bit LOW
2053 { 1256, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x16,0x00,0x00 } }, // 1080p 10bit 444
2054 { 1258, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x18,0x00,0x00 } }, // 720p 8bit TR
2055 { 1259, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x19,0x00,0x00 } }, // 1080p 8bit TR
2056 { 1260, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x1a,0x00,0x00 } }, // 1080i 8bit TR MBAFF
2057 { 1270, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x24,0x00,0x00 } }, // DNXHR 444
2058 { 1271, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x25,0x00,0x00 } }, // DNXHR HQX
2059 { 1272, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x26,0x00,0x00 } }, // DNXHR HQ
2060 { 1273, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x27,0x00,0x00 } }, // DNXHR SQ
2061 { 1274, { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x71,0x28,0x00,0x00 } }, // DNXHR LB
2062 };
2063
mxf_parse_dnxhd_frame(AVFormatContext * s,AVStream * st,AVPacket * pkt)2064 static int mxf_parse_dnxhd_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
2065 {
2066 MXFContext *mxf = s->priv_data;
2067 MXFStreamContext *sc = st->priv_data;
2068 int i, cid, frame_size = 0;
2069
2070 if (mxf->header_written)
2071 return 1;
2072
2073 if (pkt->size < 43)
2074 return 0;
2075
2076 cid = AV_RB32(pkt->data + 0x28);
2077 for (i = 0; i < FF_ARRAY_ELEMS(mxf_dnxhd_codec_uls); i++) {
2078 if (cid == mxf_dnxhd_codec_uls[i].cid) {
2079 sc->codec_ul = &mxf_dnxhd_codec_uls[i].codec_ul;
2080 break;
2081 }
2082 }
2083 if (i == FF_ARRAY_ELEMS(mxf_dnxhd_codec_uls))
2084 return 0;
2085
2086 sc->component_depth = 0;
2087 switch (pkt->data[0x21] >> 5) {
2088 case 1: sc->component_depth = 8; break;
2089 case 2: sc->component_depth = 10; break;
2090 case 3: sc->component_depth = 12; break;
2091 }
2092 if (!sc->component_depth)
2093 return 0;
2094
2095 if ((frame_size = avpriv_dnxhd_get_frame_size(cid)) == DNXHD_VARIABLE) {
2096 frame_size = avpriv_dnxhd_get_hr_frame_size(cid, st->codecpar->width, st->codecpar->height);
2097 }
2098 if (frame_size < 0)
2099 return 0;
2100
2101 if ((sc->interlaced = avpriv_dnxhd_get_interlaced(cid)) < 0)
2102 return 0;
2103
2104 if (cid >= 1270) { // RI raster
2105 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
2106 st->codecpar->width, st->codecpar->height,
2107 INT_MAX);
2108 } else {
2109 sc->aspect_ratio = (AVRational){ 16, 9 };
2110 }
2111
2112 sc->frame_size = pkt->size;
2113
2114 return 1;
2115 }
2116
2117 static const struct {
2118 const UID container_ul;
2119 const UID codec_ul;
2120 } mxf_dv_uls[] = {
2121 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x01,0x01 }, // IEC DV25 525/60
2122 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x01,0x01,0x00 } },
2123 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x02,0x01 }, // IEC DV25 626/50
2124 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x01,0x02,0x00 } },
2125 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x40,0x01 }, // DV25 525/60
2126 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x01,0x00 }, },
2127 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x41,0x01 }, // DV25 625/50
2128 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 }, },
2129 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x50,0x01 }, // DV50 525/60
2130 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x03,0x00 }, },
2131 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x51,0x01 }, // DV50 625/50
2132 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x04,0x00 }, },
2133 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x60,0x01 }, // DV100 1080/60
2134 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x05,0x00 }, },
2135 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x61,0x01 }, // DV100 1080/50
2136 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x06,0x00 }, },
2137 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x62,0x01 }, // DV100 720/60
2138 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x07,0x00 }, },
2139 { { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x02,0x63,0x01 }, // DV100 720/50
2140 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x08,0x00 }, },
2141 };
2142
mxf_parse_dv_frame(AVFormatContext * s,AVStream * st,AVPacket * pkt)2143 static int mxf_parse_dv_frame(AVFormatContext *s, AVStream *st, AVPacket *pkt)
2144 {
2145 MXFContext *mxf = s->priv_data;
2146 MXFStreamContext *sc = st->priv_data;
2147 uint8_t *vs_pack, *vsc_pack;
2148 int apt, ul_index, stype, pal;
2149
2150 if (mxf->header_written)
2151 return 1;
2152
2153 // Check for minimal frame size
2154 if (pkt->size < 120000)
2155 return -1;
2156
2157 apt = pkt->data[4] & 0x7;
2158 vs_pack = pkt->data + 80*5 + 48;
2159 vsc_pack = pkt->data + 80*5 + 53;
2160 stype = vs_pack[3] & 0x1f;
2161 pal = (vs_pack[3] >> 5) & 0x1;
2162
2163 if ((vsc_pack[2] & 0x07) == 0x02) {
2164 sc->aspect_ratio = (AVRational){ 16, 9 };
2165 } else {
2166 sc->aspect_ratio = (AVRational){ 4, 3 };
2167 }
2168
2169 sc->interlaced = (vsc_pack[3] >> 4) & 0x01;
2170 // TODO: fix dv encoder to set proper FF/FS value in VSC pack
2171 // and set field dominance accordingly
2172 // av_log(s, AV_LOG_DEBUG, "DV vsc pack ff/ss = %x\n", vsc_pack[2] >> 6);
2173
2174 switch (stype) {
2175 case 0x18: // DV100 720p
2176 ul_index = 8+pal;
2177 if (sc->interlaced) {
2178 av_log(s, AV_LOG_ERROR, "source marked as interlaced but codec profile is progressive\n");
2179 sc->interlaced = 0;
2180 }
2181 break;
2182 case 0x14: // DV100 1080i
2183 ul_index = 6+pal;
2184 break;
2185 case 0x04: // DV50
2186 ul_index = 4+pal;
2187 break;
2188 default: // DV25
2189 if (!apt) { // IEC
2190 ul_index = 0+pal;
2191 } else {
2192 ul_index = 2+pal;
2193 }
2194 }
2195
2196 sc->container_ul = &mxf_dv_uls[ul_index].container_ul;
2197 sc->codec_ul = &mxf_dv_uls[ul_index].codec_ul;
2198
2199 sc->frame_size = pkt->size;
2200
2201 return 1;
2202 }
2203
2204 static const struct {
2205 UID uid;
2206 int frame_size;
2207 int profile;
2208 uint8_t interlaced;
2209 int intra_only; // 1 or 0 when there are separate UIDs for Long GOP and Intra, -1 when Intra/LGOP detection can be ignored
2210 } mxf_h264_codec_uls[] = {
2211 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x11,0x01 }, 0, 66, 0, -1 }, // AVC Baseline
2212 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x20,0x01 }, 0, 77, 0, -1 }, // AVC Main
2213 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x30,0x01 }, 0, 88, 0, -1 }, // AVC Extended
2214 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x40,0x01 }, 0, 100, 0, -1 }, // AVC High
2215 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x50,0x01 }, 0, 110, 0, 0 }, // AVC High 10
2216 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x60,0x01 }, 0, 122, 0, 0 }, // AVC High 422
2217 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x31,0x70,0x01 }, 0, 244, 0, 0 }, // AVC High 444
2218 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x20,0x01 }, 0, 110, 0, 1 }, // AVC High 10 Intra
2219 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x01 }, 232960, 110, 1, 1 }, // AVC High 10 Intra RP2027 Class 50 1080/59.94i
2220 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x02 }, 281088, 110, 1, 1 }, // AVC High 10 Intra RP2027 Class 50 1080/50i
2221 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x03 }, 232960, 110, 0, 1 }, // AVC High 10 Intra RP2027 Class 50 1080/29.97p
2222 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x04 }, 281088, 110, 0, 1 }, // AVC High 10 Intra RP2027 Class 50 1080/25p
2223 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x08 }, 116736, 110, 0, 1 }, // AVC High 10 Intra RP2027 Class 50 720/59.94p
2224 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x21,0x09 }, 140800, 110, 0, 1 }, // AVC High 10 Intra RP2027 Class 50 720/50p
2225 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x30,0x01 }, 0, 122, 0, 1 }, // AVC High 422 Intra
2226 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x01 }, 472576, 122, 1, 1 }, // AVC High 422 Intra RP2027 Class 100 1080/59.94i
2227 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x02 }, 568832, 122, 1, 1 }, // AVC High 422 Intra RP2027 Class 100 1080/50i
2228 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x03 }, 472576, 122, 0, 1 }, // AVC High 422 Intra RP2027 Class 100 1080/29.97p
2229 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x04 }, 568832, 122, 0, 1 }, // AVC High 422 Intra RP2027 Class 100 1080/25p
2230 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x08 }, 236544, 122, 0, 1 }, // AVC High 422 Intra RP2027 Class 100 720/59.94p
2231 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0a,0x04,0x01,0x02,0x02,0x01,0x32,0x31,0x09 }, 284672, 122, 0, 1 }, // AVC High 422 Intra RP2027 Class 100 720/50p
2232 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x01,0x32,0x40,0x01 }, 0, 244, 0, 1 }, // AVC High 444 Intra
2233 {{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0d,0x04,0x01,0x02,0x02,0x01,0x32,0x50,0x01 }, 0, 44, 0, -1 }, // AVC CAVLC 444
2234 };
2235
mxf_parse_h264_frame(AVFormatContext * s,AVStream * st,AVPacket * pkt,MXFIndexEntry * e)2236 static int mxf_parse_h264_frame(AVFormatContext *s, AVStream *st,
2237 AVPacket *pkt, MXFIndexEntry *e)
2238 {
2239 MXFContext *mxf = s->priv_data;
2240 MXFStreamContext *sc = st->priv_data;
2241 H264SPS seq, *const sps = &seq;
2242 GetBitContext gb;
2243 const uint8_t *buf = pkt->data;
2244 const uint8_t *buf_end = pkt->data + pkt->size;
2245 const uint8_t *nal_end;
2246 const UID *codec_ul = NULL;
2247 uint32_t state = -1;
2248 int extra_size = 512; // support AVC Intra files without SPS/PPS header
2249 int i, frame_size, slice_type, has_sps = 0, intra_only = 0, ret;
2250
2251 for (;;) {
2252 buf = avpriv_find_start_code(buf, buf_end, &state);
2253 if (buf >= buf_end)
2254 break;
2255
2256 switch (state & 0x1f) {
2257 case H264_NAL_SPS:
2258 e->flags |= 0x40;
2259
2260 if (mxf->header_written)
2261 break;
2262
2263 nal_end = ff_avc_find_startcode(buf, buf_end);
2264 ret = ff_avc_decode_sps(sps, buf, nal_end - buf);
2265 if (ret < 0) {
2266 av_log(s, AV_LOG_ERROR, "error parsing sps\n");
2267 return 0;
2268 }
2269 has_sps = 1;
2270
2271 sc->aspect_ratio.num = st->codecpar->width * sps->sar.num;
2272 sc->aspect_ratio.den = st->codecpar->height * sps->sar.den;
2273 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
2274 sc->aspect_ratio.num, sc->aspect_ratio.den, 1024*1024);
2275 intra_only = (sps->constraint_set_flags >> 3) & 1;
2276 sc->interlaced = !sps->frame_mbs_only_flag;
2277 sc->component_depth = sps->bit_depth_luma;
2278
2279 buf = nal_end;
2280 break;
2281 case H264_NAL_PPS:
2282 if (e->flags & 0x40) { // sequence header present
2283 e->flags |= 0x80; // random access
2284 extra_size = 0;
2285 }
2286 break;
2287 case H264_NAL_IDR_SLICE:
2288 e->flags |= 0x04; // IDR Picture
2289 buf = buf_end;
2290 break;
2291 case H264_NAL_SLICE:
2292 init_get_bits8(&gb, buf, buf_end - buf);
2293 get_ue_golomb_long(&gb); // skip first_mb_in_slice
2294 slice_type = get_ue_golomb_31(&gb);
2295 switch (slice_type % 5) {
2296 case 0:
2297 e->flags |= 0x20; // P Picture
2298 e->flags |= 0x06; // P Picture
2299 break;
2300 case 1:
2301 e->flags |= 0x30; // B Picture
2302 e->flags |= 0x03; // non-referenced B Picture
2303 break;
2304 }
2305 buf = buf_end;
2306 break;
2307 default:
2308 break;
2309 }
2310 }
2311
2312 if (mxf->header_written)
2313 return 1;
2314
2315 if (!has_sps)
2316 sc->interlaced = st->codecpar->field_order != AV_FIELD_PROGRESSIVE ? 1 : 0;
2317 frame_size = pkt->size + extra_size;
2318
2319 for (i = 0; i < FF_ARRAY_ELEMS(mxf_h264_codec_uls); i++) {
2320 if (frame_size == mxf_h264_codec_uls[i].frame_size && sc->interlaced == mxf_h264_codec_uls[i].interlaced) {
2321 codec_ul = &mxf_h264_codec_uls[i].uid;
2322 sc->component_depth = 10; // AVC Intra is always 10 Bit
2323 sc->aspect_ratio = (AVRational){ 16, 9 }; // 16:9 is mandatory for broadcast HD
2324 st->codecpar->profile = mxf_h264_codec_uls[i].profile;
2325 sc->avc_intra = 1;
2326 mxf->cbr_index = 1;
2327 sc->frame_size = pkt->size;
2328 if (sc->interlaced)
2329 sc->field_dominance = 1; // top field first is mandatory for AVC Intra
2330 break;
2331 } else if (has_sps && mxf_h264_codec_uls[i].frame_size == 0 &&
2332 mxf_h264_codec_uls[i].profile == sps->profile_idc &&
2333 (mxf_h264_codec_uls[i].intra_only < 0 ||
2334 mxf_h264_codec_uls[i].intra_only == intra_only)) {
2335 codec_ul = &mxf_h264_codec_uls[i].uid;
2336 st->codecpar->profile = sps->profile_idc;
2337 st->codecpar->level = sps->level_idc;
2338 // continue to check for avc intra
2339 }
2340 }
2341
2342 if (!codec_ul) {
2343 av_log(s, AV_LOG_ERROR, "h264 profile not supported\n");
2344 return 0;
2345 }
2346 sc->codec_ul = codec_ul;
2347
2348 return 1;
2349 }
2350
2351 static const UID mxf_mpeg2_codec_uls[] = {
2352 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x10,0x00 }, // MP-ML I-Frame
2353 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x01,0x11,0x00 }, // MP-ML Long GOP
2354 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x02,0x00 }, // 422P-ML I-Frame
2355 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x02,0x03,0x00 }, // 422P-ML Long GOP
2356 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x02,0x00 }, // MP-HL I-Frame
2357 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x03,0x03,0x00 }, // MP-HL Long GOP
2358 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x02,0x00 }, // 422P-HL I-Frame
2359 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x04,0x03,0x00 }, // 422P-HL Long GOP
2360 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x02,0x00 }, // MP@H-14 I-Frame
2361 { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x05,0x03,0x00 }, // MP@H-14 Long GOP
2362 };
2363
mxf_get_mpeg2_codec_ul(AVCodecParameters * par)2364 static const UID *mxf_get_mpeg2_codec_ul(AVCodecParameters *par)
2365 {
2366 int long_gop = 1;
2367
2368 if (par->profile == 4) { // Main
2369 if (par->level == 8) // Main
2370 return &mxf_mpeg2_codec_uls[0+long_gop];
2371 else if (par->level == 4) // High
2372 return &mxf_mpeg2_codec_uls[4+long_gop];
2373 else if (par->level == 6) // High 14
2374 return &mxf_mpeg2_codec_uls[8+long_gop];
2375 } else if (par->profile == 0) { // 422
2376 if (par->level == 5) // Main
2377 return &mxf_mpeg2_codec_uls[2+long_gop];
2378 else if (par->level == 2) // High
2379 return &mxf_mpeg2_codec_uls[6+long_gop];
2380 }
2381 return NULL;
2382 }
2383
mxf_parse_mpeg2_frame(AVFormatContext * s,AVStream * st,AVPacket * pkt,MXFIndexEntry * e)2384 static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st,
2385 AVPacket *pkt, MXFIndexEntry *e)
2386 {
2387 MXFStreamContext *sc = st->priv_data;
2388 uint32_t c = -1;
2389 int i;
2390
2391 for(i = 0; i < pkt->size - 4; i++) {
2392 c = (c<<8) + pkt->data[i];
2393 if (c == 0x1b5) {
2394 if ((pkt->data[i+1] & 0xf0) == 0x10) { // seq ext
2395 st->codecpar->profile = pkt->data[i+1] & 0x07;
2396 st->codecpar->level = pkt->data[i+2] >> 4;
2397 sc->low_delay = pkt->data[i+6] >> 7;
2398 } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext
2399 sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame
2400 if (sc->interlaced)
2401 sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first
2402 break;
2403 }
2404 } else if (c == 0x1b8) { // gop
2405 if (pkt->data[i+4]>>6 & 0x01) { // closed
2406 if (sc->seq_closed_gop == -1)
2407 sc->seq_closed_gop = 1;
2408 sc->closed_gop = 1;
2409 if (e->flags & 0x40) // sequence header present
2410 e->flags |= 0x80; // random access
2411 } else {
2412 sc->seq_closed_gop = 0;
2413 sc->closed_gop = 0;
2414 }
2415 } else if (c == 0x1b3) { // seq
2416 e->flags |= 0x40;
2417 switch ((pkt->data[i+4]>>4) & 0xf) {
2418 case 2: sc->aspect_ratio = (AVRational){ 4, 3}; break;
2419 case 3: sc->aspect_ratio = (AVRational){ 16, 9}; break;
2420 case 4: sc->aspect_ratio = (AVRational){221,100}; break;
2421 default:
2422 av_reduce(&sc->aspect_ratio.num, &sc->aspect_ratio.den,
2423 st->codecpar->width, st->codecpar->height, 1024*1024);
2424 }
2425 } else if (c == 0x100) { // pic
2426 int pict_type = (pkt->data[i+2]>>3) & 0x07;
2427 e->temporal_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
2428 if (pict_type == 2) { // P-frame
2429 e->flags |= 0x22;
2430 sc->closed_gop = 0; // reset closed GOP, don't matter anymore
2431 } else if (pict_type == 3) { // B-frame
2432 if (sc->closed_gop)
2433 e->flags |= 0x13; // only backward prediction
2434 else
2435 e->flags |= 0x33;
2436 sc->temporal_reordering = -1;
2437 } else if (!pict_type) {
2438 av_log(s, AV_LOG_ERROR, "error parsing mpeg2 frame\n");
2439 return 0;
2440 }
2441 }
2442 }
2443 if (s->oformat != &ff_mxf_d10_muxer) {
2444 const UID *codec_ul = mxf_get_mpeg2_codec_ul(st->codecpar);
2445 if (!codec_ul)
2446 return 0;
2447 sc->codec_ul = codec_ul;
2448 }
2449 return 1;
2450 }
2451
mxf_parse_timestamp(int64_t timestamp64)2452 static uint64_t mxf_parse_timestamp(int64_t timestamp64)
2453 {
2454 time_t timestamp = timestamp64 / 1000000;
2455 struct tm tmbuf;
2456 struct tm *time = gmtime_r(×tamp, &tmbuf);
2457 if (!time)
2458 return 0;
2459 return (uint64_t)(time->tm_year+1900) << 48 |
2460 (uint64_t)(time->tm_mon+1) << 40 |
2461 (uint64_t) time->tm_mday << 32 |
2462 time->tm_hour << 24 |
2463 time->tm_min << 16 |
2464 time->tm_sec << 8 |
2465 (timestamp64 % 1000000) / 4000;
2466 }
2467
mxf_gen_umid(AVFormatContext * s)2468 static void mxf_gen_umid(AVFormatContext *s)
2469 {
2470 MXFContext *mxf = s->priv_data;
2471 uint32_t seed = av_get_random_seed();
2472 uint64_t umid = seed + 0x5294713400000000LL;
2473
2474 AV_WB64(mxf->umid , umid);
2475 AV_WB64(mxf->umid+8, umid>>8);
2476
2477 mxf->instance_number = seed & 0xFFFFFF;
2478 }
2479
mxf_init_timecode(AVFormatContext * s,AVStream * st,AVRational tbc)2480 static int mxf_init_timecode(AVFormatContext *s, AVStream *st, AVRational tbc)
2481 {
2482 MXFContext *mxf = s->priv_data;
2483 AVDictionaryEntry *tcr = av_dict_get(s->metadata, "timecode", NULL, 0);
2484
2485 if (!ff_mxf_get_content_package_rate(tbc)) {
2486 if (s->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL) {
2487 av_log(s, AV_LOG_ERROR, "Unsupported frame rate %d/%d. Set -strict option to 'unofficial' or lower in order to allow it!\n", tbc.den, tbc.num);
2488 return AVERROR(EINVAL);
2489 } else {
2490 av_log(s, AV_LOG_WARNING, "Unofficial frame rate %d/%d.\n", tbc.den, tbc.num);
2491 }
2492 }
2493
2494 mxf->timecode_base = (tbc.den + tbc.num/2) / tbc.num;
2495 if (!tcr)
2496 tcr = av_dict_get(st->metadata, "timecode", NULL, 0);
2497
2498 if (tcr)
2499 return av_timecode_init_from_string(&mxf->tc, av_inv_q(tbc), tcr->value, s);
2500 else
2501 return av_timecode_init(&mxf->tc, av_inv_q(tbc), 0, 0, s);
2502 }
2503
mxf_write_header(AVFormatContext * s)2504 static int mxf_write_header(AVFormatContext *s)
2505 {
2506 MXFContext *mxf = s->priv_data;
2507 int i, ret;
2508 uint8_t present[FF_ARRAY_ELEMS(mxf_essence_container_uls)] = {0};
2509 int64_t timestamp = 0;
2510
2511 if (!s->nb_streams)
2512 return -1;
2513
2514 if (s->oformat == &ff_mxf_opatom_muxer && s->nb_streams !=1) {
2515 av_log(s, AV_LOG_ERROR, "there must be exactly one stream for mxf opatom\n");
2516 return -1;
2517 }
2518
2519 if (!av_dict_get(s->metadata, "comment_", NULL, AV_DICT_IGNORE_SUFFIX))
2520 mxf->store_user_comments = 0;
2521
2522 for (i = 0; i < s->nb_streams; i++) {
2523 AVStream *st = s->streams[i];
2524 MXFStreamContext *sc = av_mallocz(sizeof(*sc));
2525 if (!sc)
2526 return AVERROR(ENOMEM);
2527 st->priv_data = sc;
2528 sc->index = -1;
2529
2530 if (((i == 0) ^ (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)) && s->oformat != &ff_mxf_opatom_muxer) {
2531 av_log(s, AV_LOG_ERROR, "there must be exactly one video stream and it must be the first one\n");
2532 return -1;
2533 }
2534
2535 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
2536 const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(st->codecpar->format);
2537 // TODO: should be avg_frame_rate
2538 AVRational tbc = st->time_base;
2539 // Default component depth to 8
2540 sc->component_depth = 8;
2541 sc->h_chroma_sub_sample = 2;
2542 sc->v_chroma_sub_sample = 2;
2543 sc->color_siting = 0xFF;
2544
2545 if (st->codecpar->sample_aspect_ratio.num && st->codecpar->sample_aspect_ratio.den) {
2546 sc->aspect_ratio = av_mul_q(st->codecpar->sample_aspect_ratio,
2547 av_make_q(st->codecpar->width, st->codecpar->height));
2548 }
2549
2550 if (pix_desc) {
2551 sc->component_depth = pix_desc->comp[0].depth;
2552 sc->h_chroma_sub_sample = 1 << pix_desc->log2_chroma_w;
2553 sc->v_chroma_sub_sample = 1 << pix_desc->log2_chroma_h;
2554 }
2555 switch (ff_choose_chroma_location(s, st)) {
2556 case AVCHROMA_LOC_TOPLEFT: sc->color_siting = 0; break;
2557 case AVCHROMA_LOC_LEFT: sc->color_siting = 6; break;
2558 case AVCHROMA_LOC_TOP: sc->color_siting = 1; break;
2559 case AVCHROMA_LOC_CENTER: sc->color_siting = 3; break;
2560 }
2561
2562 mxf->content_package_rate = ff_mxf_get_content_package_rate(tbc);
2563 mxf->time_base = tbc;
2564 avpriv_set_pts_info(st, 64, mxf->time_base.num, mxf->time_base.den);
2565 if((ret = mxf_init_timecode(s, st, tbc)) < 0)
2566 return ret;
2567
2568 if (st->codecpar->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
2569 sc->seq_closed_gop = -1; // unknown yet
2570 }
2571
2572 sc->video_bit_rate = st->codecpar->bit_rate;
2573
2574 if (s->oformat == &ff_mxf_d10_muxer ||
2575 st->codecpar->codec_id == AV_CODEC_ID_DNXHD ||
2576 st->codecpar->codec_id == AV_CODEC_ID_DVVIDEO)
2577 mxf->cbr_index = 1;
2578
2579 if (s->oformat == &ff_mxf_d10_muxer) {
2580 int ntsc = mxf->time_base.den != 25;
2581 int ul_index;
2582
2583 if (st->codecpar->codec_id != AV_CODEC_ID_MPEG2VIDEO) {
2584 av_log(s, AV_LOG_ERROR, "error MXF D-10 only support MPEG-2 Video\n");
2585 return AVERROR(EINVAL);
2586 }
2587 if ((sc->video_bit_rate == 50000000) && (mxf->time_base.den == 25)) {
2588 ul_index = 0;
2589 } else if ((sc->video_bit_rate == 49999840 || sc->video_bit_rate == 50000000) && ntsc) {
2590 ul_index = 1;
2591 } else if (sc->video_bit_rate == 40000000) {
2592 ul_index = 2+ntsc;
2593 } else if (sc->video_bit_rate == 30000000) {
2594 ul_index = 4+ntsc;
2595 } else {
2596 av_log(s, AV_LOG_ERROR, "error MXF D-10 only support 30/40/50 mbit/s\n");
2597 return -1;
2598 }
2599
2600 sc->codec_ul = &mxf_d10_codec_uls[ul_index];
2601 sc->container_ul = &mxf_d10_container_uls[ul_index];
2602 sc->index = INDEX_D10_VIDEO;
2603 sc->signal_standard = 1;
2604 sc->color_siting = 0;
2605 sc->frame_size = (int64_t)sc->video_bit_rate *
2606 mxf->time_base.num / (8*mxf->time_base.den);
2607 }
2608 if (mxf->signal_standard >= 0)
2609 sc->signal_standard = mxf->signal_standard;
2610 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
2611 char bsf_arg[32];
2612 if (st->codecpar->sample_rate != 48000) {
2613 av_log(s, AV_LOG_ERROR, "only 48khz is implemented\n");
2614 return -1;
2615 }
2616 avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
2617 if (s->oformat == &ff_mxf_d10_muxer) {
2618 if (st->index != 1) {
2619 av_log(s, AV_LOG_ERROR, "MXF D-10 only support one audio track\n");
2620 return -1;
2621 }
2622 if (st->codecpar->codec_id != AV_CODEC_ID_PCM_S16LE &&
2623 st->codecpar->codec_id != AV_CODEC_ID_PCM_S24LE) {
2624 av_log(s, AV_LOG_ERROR, "MXF D-10 only support 16 or 24 bits le audio\n");
2625 }
2626 sc->index = INDEX_D10_AUDIO;
2627 sc->container_ul = ((MXFStreamContext*)s->streams[0]->priv_data)->container_ul;
2628 sc->frame_size = 4 + 8 * av_rescale_rnd(st->codecpar->sample_rate, mxf->time_base.num, mxf->time_base.den, AV_ROUND_UP) * 4;
2629 } else if (s->oformat == &ff_mxf_opatom_muxer) {
2630 AVRational tbc = av_inv_q(mxf->audio_edit_rate);
2631
2632 if (st->codecpar->codec_id != AV_CODEC_ID_PCM_S16LE &&
2633 st->codecpar->codec_id != AV_CODEC_ID_PCM_S24LE) {
2634 av_log(s, AV_LOG_ERROR, "Only pcm_s16le and pcm_s24le audio codecs are implemented\n");
2635 return AVERROR_PATCHWELCOME;
2636 }
2637 if (st->codecpar->channels != 1) {
2638 av_log(s, AV_LOG_ERROR, "MXF OPAtom only supports single channel audio\n");
2639 return AVERROR(EINVAL);
2640 }
2641
2642 mxf->time_base = st->time_base;
2643 if((ret = mxf_init_timecode(s, st, tbc)) < 0)
2644 return ret;
2645
2646 mxf->edit_unit_byte_count = (av_get_bits_per_sample(st->codecpar->codec_id) * st->codecpar->channels) >> 3;
2647 sc->index = INDEX_WAV;
2648 } else {
2649 mxf->slice_count = 1;
2650 sc->frame_size = st->codecpar->channels *
2651 av_rescale_rnd(st->codecpar->sample_rate, mxf->time_base.num, mxf->time_base.den, AV_ROUND_UP) *
2652 av_get_bits_per_sample(st->codecpar->codec_id) / 8;
2653 }
2654 snprintf(bsf_arg, sizeof(bsf_arg), "r=%d/%d", mxf->tc.rate.num, mxf->tc.rate.den);
2655 ret = ff_stream_add_bitstream_filter(st, "pcm_rechunk", bsf_arg);
2656 if (ret < 0)
2657 return ret;
2658 } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) {
2659 AVDictionaryEntry *e = av_dict_get(st->metadata, "data_type", NULL, 0);
2660 if (e && !strcmp(e->value, "vbi_vanc_smpte_436M")) {
2661 sc->index = INDEX_S436M;
2662 } else {
2663 av_log(s, AV_LOG_ERROR, "track %d: unsupported data type\n", i);
2664 return -1;
2665 }
2666 if (st->index != s->nb_streams - 1) {
2667 av_log(s, AV_LOG_ERROR, "data track must be placed last\n");
2668 return -1;
2669 }
2670 }
2671
2672 if (sc->index == -1) {
2673 sc->index = mxf_get_essence_container_ul_index(st->codecpar->codec_id);
2674 if (sc->index == -1) {
2675 av_log(s, AV_LOG_ERROR, "track %d: could not find essence container ul, "
2676 "codec not currently supported in container\n", i);
2677 return -1;
2678 }
2679 }
2680
2681 if (!sc->codec_ul)
2682 sc->codec_ul = &mxf_essence_container_uls[sc->index].codec_ul;
2683 if (!sc->container_ul)
2684 sc->container_ul = &mxf_essence_container_uls[sc->index].container_ul;
2685
2686 memcpy(sc->track_essence_element_key, mxf_essence_container_uls[sc->index].element_ul, 15);
2687 sc->track_essence_element_key[15] = present[sc->index];
2688 PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
2689
2690 if (!present[sc->index])
2691 mxf->essence_container_count++;
2692 present[sc->index]++;
2693 }
2694
2695 if (s->oformat == &ff_mxf_d10_muxer || s->oformat == &ff_mxf_opatom_muxer) {
2696 mxf->essence_container_count = 1;
2697 }
2698
2699 if (!(s->flags & AVFMT_FLAG_BITEXACT))
2700 mxf_gen_umid(s);
2701
2702 for (i = 0; i < s->nb_streams; i++) {
2703 MXFStreamContext *sc = s->streams[i]->priv_data;
2704 // update element count
2705 sc->track_essence_element_key[13] = present[sc->index];
2706 if (!memcmp(sc->track_essence_element_key, mxf_essence_container_uls[INDEX_DV].element_ul, 13)) // DV
2707 sc->order = (0x15 << 24) | AV_RB32(sc->track_essence_element_key+13);
2708 else
2709 sc->order = AV_RB32(sc->track_essence_element_key+12);
2710 }
2711
2712 if (ff_parse_creation_time_metadata(s, ×tamp, 0) > 0)
2713 mxf->timestamp = mxf_parse_timestamp(timestamp);
2714 mxf->duration = -1;
2715
2716 mxf->timecode_track = av_mallocz(sizeof(*mxf->timecode_track));
2717 if (!mxf->timecode_track)
2718 return AVERROR(ENOMEM);
2719 mxf->timecode_track->priv_data = av_mallocz(sizeof(MXFStreamContext));
2720 if (!mxf->timecode_track->priv_data)
2721 return AVERROR(ENOMEM);
2722 mxf->timecode_track->index = -1;
2723
2724 return 0;
2725 }
2726
2727 static const uint8_t system_metadata_pack_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x05,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x01,0x00 };
2728 static const uint8_t system_metadata_package_set_key[] = { 0x06,0x0E,0x2B,0x34,0x02,0x43,0x01,0x01,0x0D,0x01,0x03,0x01,0x04,0x01,0x02,0x01 };
2729
mxf_write_system_item(AVFormatContext * s)2730 static void mxf_write_system_item(AVFormatContext *s)
2731 {
2732 MXFContext *mxf = s->priv_data;
2733 AVIOContext *pb = s->pb;
2734 unsigned frame;
2735 uint32_t time_code;
2736 int i, system_item_bitmap = 0x58; // UL, user date/time stamp, picture present
2737
2738 frame = mxf->last_indexed_edit_unit + mxf->edit_units_count;
2739
2740 // write system metadata pack
2741 avio_write(pb, system_metadata_pack_key, 16);
2742 klv_encode_ber4_length(pb, 57);
2743
2744 for (i = 0; i < s->nb_streams; i++) {
2745 if (s->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
2746 system_item_bitmap |= 0x4;
2747 else if (s->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_DATA)
2748 system_item_bitmap |= 0x2;
2749 }
2750 avio_w8(pb, system_item_bitmap);
2751 avio_w8(pb, mxf->content_package_rate); // content package rate
2752 avio_w8(pb, 0x00); // content package type
2753 avio_wb16(pb, 0x00); // channel handle
2754 avio_wb16(pb, frame & 0xFFFF); // continuity count, supposed to overflow
2755 if (mxf->essence_container_count > 1)
2756 avio_write(pb, multiple_desc_ul, 16);
2757 else {
2758 MXFStreamContext *sc = s->streams[0]->priv_data;
2759 avio_write(pb, *sc->container_ul, 16);
2760 }
2761 avio_w8(pb, 0);
2762 avio_wb64(pb, 0);
2763 avio_wb64(pb, 0); // creation date/time stamp
2764
2765 avio_w8(pb, 0x81); // SMPTE 12M time code
2766 time_code = av_timecode_get_smpte_from_framenum(&mxf->tc, frame);
2767 avio_wb32(pb, time_code);
2768 avio_wb32(pb, 0); // binary group data
2769 avio_wb64(pb, 0);
2770
2771 // write system metadata package set
2772 avio_write(pb, system_metadata_package_set_key, 16);
2773 klv_encode_ber4_length(pb, 35);
2774 avio_w8(pb, 0x83); // UMID
2775 avio_wb16(pb, 0x20);
2776 mxf_write_umid(s, 1);
2777 }
2778
mxf_write_d10_audio_packet(AVFormatContext * s,AVStream * st,AVPacket * pkt)2779 static void mxf_write_d10_audio_packet(AVFormatContext *s, AVStream *st, AVPacket *pkt)
2780 {
2781 MXFContext *mxf = s->priv_data;
2782 AVIOContext *pb = s->pb;
2783 int frame_size = pkt->size / st->codecpar->block_align;
2784 uint8_t *samples = pkt->data;
2785 uint8_t *end = pkt->data + pkt->size;
2786 int i;
2787
2788 klv_encode_ber4_length(pb, 4 + frame_size*4*8);
2789
2790 avio_w8(pb, (frame_size == 1920 ? 0 : (mxf->edit_units_count-1) % 5 + 1));
2791 avio_wl16(pb, frame_size);
2792 avio_w8(pb, (1<<st->codecpar->channels)-1);
2793
2794 while (samples < end) {
2795 for (i = 0; i < st->codecpar->channels; i++) {
2796 uint32_t sample;
2797 if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S24LE) {
2798 sample = AV_RL24(samples)<< 4;
2799 samples += 3;
2800 } else {
2801 sample = AV_RL16(samples)<<12;
2802 samples += 2;
2803 }
2804 avio_wl32(pb, sample | i);
2805 }
2806 for (; i < 8; i++)
2807 avio_wl32(pb, i);
2808 }
2809 }
2810
mxf_write_opatom_body_partition(AVFormatContext * s)2811 static int mxf_write_opatom_body_partition(AVFormatContext *s)
2812 {
2813 MXFContext *mxf = s->priv_data;
2814 AVIOContext *pb = s->pb;
2815 AVStream *st = s->streams[0];
2816 MXFStreamContext *sc = st->priv_data;
2817 const uint8_t *key = NULL;
2818
2819 int err;
2820
2821 if (!mxf->header_written)
2822 key = body_partition_key;
2823
2824 if ((err = mxf_write_partition(s, 1, 0, key, 0)) < 0)
2825 return err;
2826 mxf_write_klv_fill(s);
2827 avio_write(pb, sc->track_essence_element_key, 16);
2828 klv_encode_ber9_length(pb, mxf->body_offset);
2829 return 0;
2830 }
2831
mxf_write_opatom_packet(AVFormatContext * s,AVPacket * pkt,MXFIndexEntry * ie)2832 static int mxf_write_opatom_packet(AVFormatContext *s, AVPacket *pkt, MXFIndexEntry *ie)
2833 {
2834 MXFContext *mxf = s->priv_data;
2835 AVIOContext *pb = s->pb;
2836
2837 int err;
2838
2839 if (!mxf->header_written) {
2840 if ((err = mxf_write_partition(s, 0, 0, header_open_partition_key, 1)) < 0)
2841 return err;
2842 mxf_write_klv_fill(s);
2843
2844 if ((err = mxf_write_opatom_body_partition(s)) < 0)
2845 return err;
2846 mxf->header_written = 1;
2847 }
2848
2849 if (!mxf->edit_unit_byte_count) {
2850 mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
2851 mxf->index_entries[mxf->edit_units_count].flags = ie->flags;
2852 mxf->index_entries[mxf->edit_units_count].temporal_ref = ie->temporal_ref;
2853 }
2854 mxf->edit_units_count++;
2855 avio_write(pb, pkt->data, pkt->size);
2856 mxf->body_offset += pkt->size;
2857
2858 return 0;
2859 }
2860
mxf_compute_edit_unit_byte_count(AVFormatContext * s)2861 static void mxf_compute_edit_unit_byte_count(AVFormatContext *s)
2862 {
2863 MXFContext *mxf = s->priv_data;
2864 int i;
2865
2866 if (s->oformat == &ff_mxf_opatom_muxer) {
2867 MXFStreamContext *sc = s->streams[0]->priv_data;
2868 mxf->edit_unit_byte_count = sc->frame_size;
2869 return;
2870 }
2871
2872 mxf->edit_unit_byte_count = KAG_SIZE; // system element
2873 for (i = 0; i < s->nb_streams; i++) {
2874 AVStream *st = s->streams[i];
2875 MXFStreamContext *sc = st->priv_data;
2876 sc->slice_offset = mxf->edit_unit_byte_count;
2877 mxf->edit_unit_byte_count += 16 + 4 + sc->frame_size;
2878 mxf->edit_unit_byte_count += klv_fill_size(mxf->edit_unit_byte_count);
2879 }
2880 }
2881
mxf_write_packet(AVFormatContext * s,AVPacket * pkt)2882 static int mxf_write_packet(AVFormatContext *s, AVPacket *pkt)
2883 {
2884 MXFContext *mxf = s->priv_data;
2885 AVIOContext *pb = s->pb;
2886 AVStream *st = s->streams[pkt->stream_index];
2887 MXFStreamContext *sc = st->priv_data;
2888 MXFIndexEntry ie = {0};
2889 int err;
2890
2891 if (!mxf->header_written && pkt->stream_index != 0 &&
2892 s->oformat != &ff_mxf_opatom_muxer) {
2893 av_log(s, AV_LOG_ERROR, "Received non-video packet before "
2894 "header has been written\n");
2895 return AVERROR_INVALIDDATA;
2896 }
2897
2898 if (!mxf->cbr_index && !mxf->edit_unit_byte_count && !(mxf->edit_units_count % EDIT_UNITS_PER_BODY)) {
2899 if ((err = av_reallocp_array(&mxf->index_entries, mxf->edit_units_count
2900 + EDIT_UNITS_PER_BODY, sizeof(*mxf->index_entries))) < 0) {
2901 mxf->edit_units_count = 0;
2902 av_log(s, AV_LOG_ERROR, "could not allocate index entries\n");
2903 return err;
2904 }
2905 }
2906
2907 if (st->codecpar->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
2908 if (!mxf_parse_mpeg2_frame(s, st, pkt, &ie)) {
2909 av_log(s, AV_LOG_ERROR, "could not get mpeg2 profile and level\n");
2910 return -1;
2911 }
2912 } else if (st->codecpar->codec_id == AV_CODEC_ID_DNXHD) {
2913 if (!mxf_parse_dnxhd_frame(s, st, pkt)) {
2914 av_log(s, AV_LOG_ERROR, "could not get dnxhd profile\n");
2915 return -1;
2916 }
2917 } else if (st->codecpar->codec_id == AV_CODEC_ID_PRORES) {
2918 if (!mxf_parse_prores_frame(s, st, pkt)) {
2919 av_log(s, AV_LOG_ERROR, "could not get prores profile\n");
2920 return -1;
2921 }
2922 } else if (st->codecpar->codec_id == AV_CODEC_ID_DVVIDEO) {
2923 if (!mxf_parse_dv_frame(s, st, pkt)) {
2924 av_log(s, AV_LOG_ERROR, "could not get dv profile\n");
2925 return -1;
2926 }
2927 } else if (st->codecpar->codec_id == AV_CODEC_ID_H264) {
2928 if (!mxf_parse_h264_frame(s, st, pkt, &ie)) {
2929 av_log(s, AV_LOG_ERROR, "could not get h264 profile\n");
2930 return -1;
2931 }
2932 }
2933
2934 if (mxf->cbr_index) {
2935 if (pkt->size != sc->frame_size && st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
2936 av_log(s, AV_LOG_ERROR, "track %d: frame size does not match index unit size, %d != %d\n",
2937 st->index, pkt->size, sc->frame_size);
2938 return -1;
2939 }
2940 if (!mxf->header_written)
2941 mxf_compute_edit_unit_byte_count(s);
2942 }
2943
2944 if (s->oformat == &ff_mxf_opatom_muxer)
2945 return mxf_write_opatom_packet(s, pkt, &ie);
2946
2947 if (!mxf->header_written) {
2948 if (mxf->edit_unit_byte_count) {
2949 if ((err = mxf_write_partition(s, 1, 2, header_open_partition_key, 1)) < 0)
2950 return err;
2951 mxf_write_klv_fill(s);
2952 mxf_write_index_table_segment(s);
2953 } else {
2954 if ((err = mxf_write_partition(s, 0, 0, header_open_partition_key, 1)) < 0)
2955 return err;
2956 }
2957 mxf->header_written = 1;
2958 }
2959
2960 if (st->index == 0) {
2961 if (!mxf->edit_unit_byte_count &&
2962 (!mxf->edit_units_count || mxf->edit_units_count > EDIT_UNITS_PER_BODY) &&
2963 !(ie.flags & 0x33)) { // I-frame, GOP start
2964 mxf_write_klv_fill(s);
2965 if ((err = mxf_write_partition(s, 1, 2, body_partition_key, 0)) < 0)
2966 return err;
2967 mxf_write_klv_fill(s);
2968 mxf_write_index_table_segment(s);
2969 }
2970
2971 mxf_write_klv_fill(s);
2972 mxf_write_system_item(s);
2973
2974 if (!mxf->edit_unit_byte_count) {
2975 mxf->index_entries[mxf->edit_units_count].offset = mxf->body_offset;
2976 mxf->index_entries[mxf->edit_units_count].flags = ie.flags;
2977 mxf->index_entries[mxf->edit_units_count].temporal_ref = ie.temporal_ref;
2978 mxf->body_offset += KAG_SIZE; // size of system element
2979 }
2980 mxf->edit_units_count++;
2981 } else if (!mxf->edit_unit_byte_count && st->index == 1) {
2982 if (!mxf->edit_units_count) {
2983 av_log(s, AV_LOG_ERROR, "No packets in first stream\n");
2984 return AVERROR_PATCHWELCOME;
2985 }
2986 mxf->index_entries[mxf->edit_units_count-1].slice_offset =
2987 mxf->body_offset - mxf->index_entries[mxf->edit_units_count-1].offset;
2988 }
2989
2990 mxf_write_klv_fill(s);
2991 avio_write(pb, sc->track_essence_element_key, 16); // write key
2992 if (s->oformat == &ff_mxf_d10_muxer &&
2993 st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
2994 mxf_write_d10_audio_packet(s, st, pkt);
2995 } else {
2996 klv_encode_ber4_length(pb, pkt->size); // write length
2997 avio_write(pb, pkt->data, pkt->size);
2998 mxf->body_offset += 16+4+pkt->size + klv_fill_size(16+4+pkt->size);
2999 }
3000
3001 return 0;
3002 }
3003
mxf_write_random_index_pack(AVFormatContext * s)3004 static void mxf_write_random_index_pack(AVFormatContext *s)
3005 {
3006 MXFContext *mxf = s->priv_data;
3007 AVIOContext *pb = s->pb;
3008 uint64_t pos = avio_tell(pb);
3009 int i;
3010
3011 avio_write(pb, ff_mxf_random_index_pack_key, 16);
3012 klv_encode_ber_length(pb, 28 + 12LL*mxf->body_partitions_count);
3013
3014 if (mxf->edit_unit_byte_count && s->oformat != &ff_mxf_opatom_muxer)
3015 avio_wb32(pb, 1); // BodySID of header partition
3016 else
3017 avio_wb32(pb, 0);
3018 avio_wb64(pb, 0); // offset of header partition
3019
3020 for (i = 0; i < mxf->body_partitions_count; i++) {
3021 avio_wb32(pb, 1); // BodySID
3022 avio_wb64(pb, mxf->body_partition_offset[i]);
3023 }
3024
3025 avio_wb32(pb, 0); // BodySID of footer partition
3026 avio_wb64(pb, mxf->footer_partition_offset);
3027
3028 avio_wb32(pb, avio_tell(pb) - pos + 4);
3029 }
3030
mxf_write_footer(AVFormatContext * s)3031 static int mxf_write_footer(AVFormatContext *s)
3032 {
3033 MXFContext *mxf = s->priv_data;
3034 AVIOContext *pb = s->pb;
3035 int i, err;
3036
3037 if (!mxf->header_written ||
3038 (s->oformat == &ff_mxf_opatom_muxer && !mxf->body_partition_offset)) {
3039 /* reason could be invalid options/not supported codec/out of memory */
3040 return AVERROR_UNKNOWN;
3041 }
3042
3043 mxf->duration = mxf->last_indexed_edit_unit + mxf->edit_units_count;
3044
3045 mxf_write_klv_fill(s);
3046 mxf->footer_partition_offset = avio_tell(pb);
3047 if (mxf->edit_unit_byte_count && s->oformat != &ff_mxf_opatom_muxer) { // no need to repeat index
3048 if ((err = mxf_write_partition(s, 0, 0, footer_partition_key, 0)) < 0)
3049 return err;
3050 } else {
3051 if ((err = mxf_write_partition(s, 0, 2, footer_partition_key, 0)) < 0)
3052 return err;
3053 mxf_write_klv_fill(s);
3054 mxf_write_index_table_segment(s);
3055 }
3056
3057 mxf_write_klv_fill(s);
3058 mxf_write_random_index_pack(s);
3059
3060 if (s->pb->seekable & AVIO_SEEKABLE_NORMAL) {
3061 if (s->oformat == &ff_mxf_opatom_muxer) {
3062 /* rewrite body partition to update lengths */
3063 avio_seek(pb, mxf->body_partition_offset[0], SEEK_SET);
3064 if ((err = mxf_write_opatom_body_partition(s)) < 0)
3065 return err;
3066 }
3067
3068 avio_seek(pb, 0, SEEK_SET);
3069 if (mxf->edit_unit_byte_count && s->oformat != &ff_mxf_opatom_muxer) {
3070 if ((err = mxf_write_partition(s, 1, 2, header_closed_partition_key, 1)) < 0)
3071 return err;
3072 mxf_write_klv_fill(s);
3073 mxf_write_index_table_segment(s);
3074 } else {
3075 if ((err = mxf_write_partition(s, 0, 0, header_closed_partition_key, 1)) < 0)
3076 return err;
3077 }
3078 // update footer partition offset
3079 for (i = 0; i < mxf->body_partitions_count; i++) {
3080 avio_seek(pb, mxf->body_partition_offset[i]+44, SEEK_SET);
3081 avio_wb64(pb, mxf->footer_partition_offset);
3082 }
3083 }
3084
3085 return 0;
3086 }
3087
mxf_deinit(AVFormatContext * s)3088 static void mxf_deinit(AVFormatContext *s)
3089 {
3090 MXFContext *mxf = s->priv_data;
3091
3092 av_freep(&mxf->index_entries);
3093 av_freep(&mxf->body_partition_offset);
3094 if (mxf->timecode_track) {
3095 av_freep(&mxf->timecode_track->priv_data);
3096 av_freep(&mxf->timecode_track);
3097 }
3098 }
3099
mxf_interleave_get_packet(AVFormatContext * s,AVPacket * out,AVPacket * pkt,int flush)3100 static int mxf_interleave_get_packet(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
3101 {
3102 int i, stream_count = 0;
3103
3104 for (i = 0; i < s->nb_streams; i++)
3105 stream_count += !!s->streams[i]->internal->last_in_packet_buffer;
3106
3107 if (stream_count && (s->nb_streams == stream_count || flush)) {
3108 PacketList *pktl = s->internal->packet_buffer;
3109 if (s->nb_streams != stream_count) {
3110 PacketList *last = NULL;
3111 // find last packet in edit unit
3112 while (pktl) {
3113 if (!stream_count || pktl->pkt.stream_index == 0)
3114 break;
3115 // update last packet in packet buffer
3116 if (s->streams[pktl->pkt.stream_index]->internal->last_in_packet_buffer != pktl)
3117 s->streams[pktl->pkt.stream_index]->internal->last_in_packet_buffer = pktl;
3118 last = pktl;
3119 pktl = pktl->next;
3120 stream_count--;
3121 }
3122 // purge packet queue
3123 while (pktl) {
3124 PacketList *next = pktl->next;
3125 av_packet_unref(&pktl->pkt);
3126 av_freep(&pktl);
3127 pktl = next;
3128 }
3129 if (last)
3130 last->next = NULL;
3131 else {
3132 s->internal->packet_buffer = NULL;
3133 s->internal->packet_buffer_end= NULL;
3134 goto out;
3135 }
3136 pktl = s->internal->packet_buffer;
3137 }
3138
3139 *out = pktl->pkt;
3140 av_log(s, AV_LOG_TRACE, "out st:%d dts:%"PRId64"\n", (*out).stream_index, (*out).dts);
3141 s->internal->packet_buffer = pktl->next;
3142 if(s->streams[pktl->pkt.stream_index]->internal->last_in_packet_buffer == pktl)
3143 s->streams[pktl->pkt.stream_index]->internal->last_in_packet_buffer= NULL;
3144 if(!s->internal->packet_buffer)
3145 s->internal->packet_buffer_end= NULL;
3146 av_freep(&pktl);
3147 return 1;
3148 } else {
3149 out:
3150 return 0;
3151 }
3152 }
3153
mxf_compare_timestamps(AVFormatContext * s,const AVPacket * next,const AVPacket * pkt)3154 static int mxf_compare_timestamps(AVFormatContext *s, const AVPacket *next,
3155 const AVPacket *pkt)
3156 {
3157 MXFStreamContext *sc = s->streams[pkt ->stream_index]->priv_data;
3158 MXFStreamContext *sc2 = s->streams[next->stream_index]->priv_data;
3159
3160 return next->dts > pkt->dts ||
3161 (next->dts == pkt->dts && sc->order < sc2->order);
3162 }
3163
mxf_interleave(AVFormatContext * s,AVPacket * out,AVPacket * pkt,int flush)3164 static int mxf_interleave(AVFormatContext *s, AVPacket *out, AVPacket *pkt, int flush)
3165 {
3166 int ret;
3167 if (pkt) {
3168 MXFStreamContext *sc = s->streams[pkt->stream_index]->priv_data;
3169 pkt->pts = pkt->dts = sc->pkt_cnt++;
3170 if ((ret = ff_interleave_add_packet(s, pkt, mxf_compare_timestamps)) < 0)
3171 return ret;
3172 }
3173 return mxf_interleave_get_packet(s, out, NULL, flush);
3174 }
3175
3176 #define MXF_COMMON_OPTIONS \
3177 { "signal_standard", "Force/set Signal Standard",\
3178 offsetof(MXFContext, signal_standard), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
3179 { "bt601", "ITU-R BT.601 and BT.656, also SMPTE 125M (525 and 625 line interlaced)",\
3180 0, AV_OPT_TYPE_CONST, {.i64 = 1}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
3181 { "bt1358", "ITU-R BT.1358 and ITU-R BT.799-3, also SMPTE 293M (525 and 625 line progressive)",\
3182 0, AV_OPT_TYPE_CONST, {.i64 = 2}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
3183 { "smpte347m", "SMPTE 347M (540 Mbps mappings)",\
3184 0, AV_OPT_TYPE_CONST, {.i64 = 3}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
3185 { "smpte274m", "SMPTE 274M (1125 line)",\
3186 0, AV_OPT_TYPE_CONST, {.i64 = 4}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
3187 { "smpte296m", "SMPTE 296M (750 line progressive)",\
3188 0, AV_OPT_TYPE_CONST, {.i64 = 5}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
3189 { "smpte349m", "SMPTE 349M (1485 Mbps mappings)",\
3190 0, AV_OPT_TYPE_CONST, {.i64 = 6}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},\
3191 { "smpte428", "SMPTE 428-1 DCDM",\
3192 0, AV_OPT_TYPE_CONST, {.i64 = 7}, -1, 7, AV_OPT_FLAG_ENCODING_PARAM, "signal_standard"},
3193
3194
3195
3196 static const AVOption mxf_options[] = {
3197 MXF_COMMON_OPTIONS
3198 { "store_user_comments", "",
3199 offsetof(MXFContext, store_user_comments), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
3200 { NULL },
3201 };
3202
3203 static const AVClass mxf_muxer_class = {
3204 .class_name = "MXF muxer",
3205 .item_name = av_default_item_name,
3206 .option = mxf_options,
3207 .version = LIBAVUTIL_VERSION_INT,
3208 };
3209
3210 static const AVOption d10_options[] = {
3211 { "d10_channelcount", "Force/set channelcount in generic sound essence descriptor",
3212 offsetof(MXFContext, channel_count), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 8, AV_OPT_FLAG_ENCODING_PARAM},
3213 MXF_COMMON_OPTIONS
3214 { "store_user_comments", "",
3215 offsetof(MXFContext, store_user_comments), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
3216 { NULL },
3217 };
3218
3219 static const AVClass mxf_d10_muxer_class = {
3220 .class_name = "MXF-D10 muxer",
3221 .item_name = av_default_item_name,
3222 .option = d10_options,
3223 .version = LIBAVUTIL_VERSION_INT,
3224 };
3225
3226 static const AVOption opatom_options[] = {
3227 { "mxf_audio_edit_rate", "Audio edit rate for timecode",
3228 offsetof(MXFContext, audio_edit_rate), AV_OPT_TYPE_RATIONAL, {.dbl=25}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
3229 MXF_COMMON_OPTIONS
3230 { "store_user_comments", "",
3231 offsetof(MXFContext, store_user_comments), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
3232 { NULL },
3233 };
3234
3235 static const AVClass mxf_opatom_muxer_class = {
3236 .class_name = "MXF-OPAtom muxer",
3237 .item_name = av_default_item_name,
3238 .option = opatom_options,
3239 .version = LIBAVUTIL_VERSION_INT,
3240 };
3241
3242 AVOutputFormat ff_mxf_muxer = {
3243 .name = "mxf",
3244 .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format)"),
3245 .mime_type = "application/mxf",
3246 .extensions = "mxf",
3247 .priv_data_size = sizeof(MXFContext),
3248 .audio_codec = AV_CODEC_ID_PCM_S16LE,
3249 .video_codec = AV_CODEC_ID_MPEG2VIDEO,
3250 .write_header = mxf_write_header,
3251 .write_packet = mxf_write_packet,
3252 .write_trailer = mxf_write_footer,
3253 .deinit = mxf_deinit,
3254 .flags = AVFMT_NOTIMESTAMPS,
3255 .interleave_packet = mxf_interleave,
3256 .priv_class = &mxf_muxer_class,
3257 };
3258
3259 AVOutputFormat ff_mxf_d10_muxer = {
3260 .name = "mxf_d10",
3261 .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) D-10 Mapping"),
3262 .mime_type = "application/mxf",
3263 .priv_data_size = sizeof(MXFContext),
3264 .audio_codec = AV_CODEC_ID_PCM_S16LE,
3265 .video_codec = AV_CODEC_ID_MPEG2VIDEO,
3266 .write_header = mxf_write_header,
3267 .write_packet = mxf_write_packet,
3268 .write_trailer = mxf_write_footer,
3269 .deinit = mxf_deinit,
3270 .flags = AVFMT_NOTIMESTAMPS,
3271 .interleave_packet = mxf_interleave,
3272 .priv_class = &mxf_d10_muxer_class,
3273 };
3274
3275 AVOutputFormat ff_mxf_opatom_muxer = {
3276 .name = "mxf_opatom",
3277 .long_name = NULL_IF_CONFIG_SMALL("MXF (Material eXchange Format) Operational Pattern Atom"),
3278 .mime_type = "application/mxf",
3279 .extensions = "mxf",
3280 .priv_data_size = sizeof(MXFContext),
3281 .audio_codec = AV_CODEC_ID_PCM_S16LE,
3282 .video_codec = AV_CODEC_ID_DNXHD,
3283 .write_header = mxf_write_header,
3284 .write_packet = mxf_write_packet,
3285 .write_trailer = mxf_write_footer,
3286 .deinit = mxf_deinit,
3287 .flags = AVFMT_NOTIMESTAMPS,
3288 .interleave_packet = mxf_interleave,
3289 .priv_class = &mxf_opatom_muxer_class,
3290 };
3291