1 /*
2  * Copyright (C) 2014 SUMOMO Computer Association
3  *     Author: ayaka <ayaka@soulik.info>
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Library General Public
7  * License as published by the Free Software Foundation; either
8  * version 2 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * Library General Public License for more details.
14  *
15  * You should have received a copy of the GNU Library General Public
16  * License along with this library; if not, write to the
17  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18  * Boston, MA 02110-1301, USA.
19  *
20  */
21 
22 #ifdef HAVE_CONFIG_H
23 #include "config.h"
24 #endif
25 
26 #include <sys/stat.h>
27 #include <fcntl.h>
28 #include <errno.h>
29 #include <unistd.h>
30 #include <string.h>
31 
32 #include "gstv4l2object.h"
33 #include "gstv4l2h264enc.h"
34 
35 #include <string.h>
36 #include <gst/gst-i18n-plugin.h>
37 
38 GST_DEBUG_CATEGORY_STATIC (gst_v4l2_h264_enc_debug);
39 #define GST_CAT_DEFAULT gst_v4l2_h264_enc_debug
40 
41 
42 static GstStaticCaps src_template_caps =
43 GST_STATIC_CAPS ("video/x-h264, stream-format=(string) byte-stream, "
44     "alignment=(string) au");
45 
46 enum
47 {
48   PROP_0,
49   V4L2_STD_OBJECT_PROPS,
50 /* TODO add H264 controls
51  * PROP_I_FRAME_QP,
52  * PROP_P_FRAME_QP,
53  * PROP_B_FRAME_QP,
54  * PROP_MIN_QP,
55  * PROP_MAX_QP,
56  * PROP_8x8_TRANSFORM,
57  * PROP_CPB_SIZE,
58  * PROP_ENTROPY_MODE,
59  * PROP_I_PERIOD,
60  * PROP_LOOP_FILTER_ALPHA,
61  * PROP_LOOP_FILTER_BETA,
62  * PROP_LOOP_FILTER_MODE,
63  * PROP_VUI_EXT_SAR_HEIGHT,
64  * PROP_VUI_EXT_SAR_WIDTH,
65  * PROP_VUI_SAR_ENABLED,
66  * PROP_VUI_SAR_IDC,
67  * PROP_SEI_FRAME_PACKING,
68  * PROP_SEI_FP_CURRENT_FRAME_0,
69  * PROP_SEI_FP_ARRANGEMENT_TYP,
70  * ...
71  * */
72 };
73 
74 #define gst_v4l2_h264_enc_parent_class parent_class
75 G_DEFINE_TYPE (GstV4l2H264Enc, gst_v4l2_h264_enc, GST_TYPE_V4L2_VIDEO_ENC);
76 
77 static void
gst_v4l2_h264_enc_set_property(GObject * object,guint prop_id,const GValue * value,GParamSpec * pspec)78 gst_v4l2_h264_enc_set_property (GObject * object,
79     guint prop_id, const GValue * value, GParamSpec * pspec)
80 {
81   /* TODO */
82 }
83 
84 static void
gst_v4l2_h264_enc_get_property(GObject * object,guint prop_id,GValue * value,GParamSpec * pspec)85 gst_v4l2_h264_enc_get_property (GObject * object,
86     guint prop_id, GValue * value, GParamSpec * pspec)
87 {
88   /* TODO */
89 }
90 
91 static gint
v4l2_profile_from_string(const gchar * profile)92 v4l2_profile_from_string (const gchar * profile)
93 {
94   gint v4l2_profile = -1;
95 
96   if (g_str_equal (profile, "baseline")) {
97     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE;
98   } else if (g_str_equal (profile, "constrained-baseline")) {
99     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE;
100   } else if (g_str_equal (profile, "main")) {
101     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_MAIN;
102   } else if (g_str_equal (profile, "extended")) {
103     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_EXTENDED;
104   } else if (g_str_equal (profile, "high")) {
105     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_HIGH;
106   } else if (g_str_equal (profile, "high-10")) {
107     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_10;
108   } else if (g_str_equal (profile, "high-4:2:2")) {
109     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_422;
110   } else if (g_str_equal (profile, "high-4:4:4")) {
111     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_444_PREDICTIVE;
112   } else if (g_str_equal (profile, "high-10-intra")) {
113     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_10_INTRA;
114   } else if (g_str_equal (profile, "high-4:2:2-intra")) {
115     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_422_INTRA;
116   } else if (g_str_equal (profile, "high-4:4:4-intra")) {
117     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_444_INTRA;
118   } else if (g_str_equal (profile, "cavlc-4:4:4-intra")) {
119     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_CAVLC_444_INTRA;
120   } else if (g_str_equal (profile, "scalable-baseline")) {
121     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_BASELINE;
122   } else if (g_str_equal (profile, "scalable-high")) {
123     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_HIGH;
124   } else if (g_str_equal (profile, "scalable-high-intra")) {
125     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_HIGH_INTRA;
126   } else if (g_str_equal (profile, "stereo-high")) {
127     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_STEREO_HIGH;
128   } else if (g_str_equal (profile, "multiview-high")) {
129     v4l2_profile = V4L2_MPEG_VIDEO_H264_PROFILE_MULTIVIEW_HIGH;
130   } else {
131     GST_WARNING ("Unsupported profile string '%s'", profile);
132   }
133 
134   return v4l2_profile;
135 }
136 
137 static const gchar *
v4l2_profile_to_string(gint v4l2_profile)138 v4l2_profile_to_string (gint v4l2_profile)
139 {
140   switch (v4l2_profile) {
141     case V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE:
142       return "baseline";
143     case V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE:
144       return "constrained-baseline";
145     case V4L2_MPEG_VIDEO_H264_PROFILE_MAIN:
146       return "main";
147     case V4L2_MPEG_VIDEO_H264_PROFILE_EXTENDED:
148       return "extended";
149     case V4L2_MPEG_VIDEO_H264_PROFILE_HIGH:
150       return "high";
151     case V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_10:
152       return "high-10";
153     case V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_422:
154       return "high-4:2:2";
155     case V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_444_PREDICTIVE:
156       return "high-4:4:4";
157     case V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_10_INTRA:
158       return "high-10-intra";
159     case V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_422_INTRA:
160       return "high-4:2:2-intra";
161     case V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_444_INTRA:
162       return "high-4:4:4-intra";
163     case V4L2_MPEG_VIDEO_H264_PROFILE_CAVLC_444_INTRA:
164       return "cavlc-4:4:4-intra";
165     case V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_BASELINE:
166       return "scalable-baseline";
167     case V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_HIGH:
168       return "scalable-high";
169     case V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_HIGH_INTRA:
170       return "scalable-high-intra";
171     case V4L2_MPEG_VIDEO_H264_PROFILE_STEREO_HIGH:
172       return "stereo-high";
173     case V4L2_MPEG_VIDEO_H264_PROFILE_MULTIVIEW_HIGH:
174       return "multiview-high";
175     default:
176       GST_WARNING ("Unsupported V4L2 profile %i", v4l2_profile);
177       break;
178   }
179 
180   return NULL;
181 }
182 
183 static gint
v4l2_level_from_string(const gchar * level)184 v4l2_level_from_string (const gchar * level)
185 {
186   gint v4l2_level = -1;
187 
188   if (g_str_equal (level, "1"))
189     v4l2_level = V4L2_MPEG_VIDEO_H264_LEVEL_1_0;
190   else if (g_str_equal (level, "1b"))
191     v4l2_level = V4L2_MPEG_VIDEO_H264_LEVEL_1B;
192   else if (g_str_equal (level, "1.1"))
193     v4l2_level = V4L2_MPEG_VIDEO_H264_LEVEL_1_1;
194   else if (g_str_equal (level, "1.2"))
195     v4l2_level = V4L2_MPEG_VIDEO_H264_LEVEL_1_2;
196   else if (g_str_equal (level, "1.3"))
197     v4l2_level = V4L2_MPEG_VIDEO_H264_LEVEL_1_3;
198   else if (g_str_equal (level, "2"))
199     v4l2_level = V4L2_MPEG_VIDEO_H264_LEVEL_2_0;
200   else if (g_str_equal (level, "2.1"))
201     v4l2_level = V4L2_MPEG_VIDEO_H264_LEVEL_2_1;
202   else if (g_str_equal (level, "2.2"))
203     v4l2_level = V4L2_MPEG_VIDEO_H264_LEVEL_2_2;
204   else if (g_str_equal (level, "3"))
205     v4l2_level = V4L2_MPEG_VIDEO_H264_LEVEL_3_0;
206   else if (g_str_equal (level, "3.1"))
207     v4l2_level = V4L2_MPEG_VIDEO_H264_LEVEL_3_1;
208   else if (g_str_equal (level, "3.2"))
209     v4l2_level = V4L2_MPEG_VIDEO_H264_LEVEL_3_2;
210   else if (g_str_equal (level, "4"))
211     v4l2_level = V4L2_MPEG_VIDEO_H264_LEVEL_4_0;
212   else if (g_str_equal (level, "4.1"))
213     v4l2_level = V4L2_MPEG_VIDEO_H264_LEVEL_4_1;
214   else if (g_str_equal (level, "4.2"))
215     v4l2_level = V4L2_MPEG_VIDEO_H264_LEVEL_4_2;
216   else if (g_str_equal (level, "5"))
217     v4l2_level = V4L2_MPEG_VIDEO_H264_LEVEL_5_0;
218   else if (g_str_equal (level, "5.1"))
219     v4l2_level = V4L2_MPEG_VIDEO_H264_LEVEL_5_1;
220   else
221     GST_WARNING ("Unsupported level '%s'", level);
222 
223   return v4l2_level;
224 }
225 
226 static const gchar *
v4l2_level_to_string(gint v4l2_level)227 v4l2_level_to_string (gint v4l2_level)
228 {
229   switch (v4l2_level) {
230     case V4L2_MPEG_VIDEO_H264_LEVEL_1_0:
231       return "1";
232     case V4L2_MPEG_VIDEO_H264_LEVEL_1B:
233       return "1b";
234     case V4L2_MPEG_VIDEO_H264_LEVEL_1_1:
235       return "1.1";
236     case V4L2_MPEG_VIDEO_H264_LEVEL_1_2:
237       return "1.2";
238     case V4L2_MPEG_VIDEO_H264_LEVEL_1_3:
239       return "1.3";
240     case V4L2_MPEG_VIDEO_H264_LEVEL_2_0:
241       return "2";
242     case V4L2_MPEG_VIDEO_H264_LEVEL_2_1:
243       return "2.1";
244     case V4L2_MPEG_VIDEO_H264_LEVEL_2_2:
245       return "2.2";
246     case V4L2_MPEG_VIDEO_H264_LEVEL_3_0:
247       return "3.0";
248     case V4L2_MPEG_VIDEO_H264_LEVEL_3_1:
249       return "3.1";
250     case V4L2_MPEG_VIDEO_H264_LEVEL_3_2:
251       return "3.2";
252     case V4L2_MPEG_VIDEO_H264_LEVEL_4_0:
253       return "4";
254     case V4L2_MPEG_VIDEO_H264_LEVEL_4_1:
255       return "4.1";
256     case V4L2_MPEG_VIDEO_H264_LEVEL_4_2:
257       return "4.2";
258     case V4L2_MPEG_VIDEO_H264_LEVEL_5_0:
259       return "5";
260     case V4L2_MPEG_VIDEO_H264_LEVEL_5_1:
261       return "5.1";
262     default:
263       GST_WARNING ("Unsupported V4L2 level %i", v4l2_level);
264       break;
265   }
266 
267   return NULL;
268 }
269 
270 static void
gst_v4l2_h264_enc_init(GstV4l2H264Enc * self)271 gst_v4l2_h264_enc_init (GstV4l2H264Enc * self)
272 {
273 }
274 
275 static void
gst_v4l2_h264_enc_class_init(GstV4l2H264EncClass * klass)276 gst_v4l2_h264_enc_class_init (GstV4l2H264EncClass * klass)
277 {
278   GstElementClass *element_class;
279   GObjectClass *gobject_class;
280   GstV4l2VideoEncClass *baseclass;
281 
282   parent_class = g_type_class_peek_parent (klass);
283 
284   element_class = (GstElementClass *) klass;
285   gobject_class = (GObjectClass *) klass;
286   baseclass = (GstV4l2VideoEncClass *) (klass);
287 
288   GST_DEBUG_CATEGORY_INIT (gst_v4l2_h264_enc_debug, "v4l2h264enc", 0,
289       "V4L2 H.264 Encoder");
290 
291   gst_element_class_set_static_metadata (element_class,
292       "V4L2 H.264 Encoder",
293       "Codec/Encoder/Video/Hardware",
294       "Encode H.264 video streams via V4L2 API", "ayaka <ayaka@soulik.info>");
295 
296   gobject_class->set_property =
297       GST_DEBUG_FUNCPTR (gst_v4l2_h264_enc_set_property);
298   gobject_class->get_property =
299       GST_DEBUG_FUNCPTR (gst_v4l2_h264_enc_get_property);
300 
301   baseclass->codec_name = "H264";
302   baseclass->profile_cid = V4L2_CID_MPEG_VIDEO_H264_PROFILE;
303   baseclass->profile_to_string = v4l2_profile_to_string;
304   baseclass->profile_from_string = v4l2_profile_from_string;
305   baseclass->level_cid = V4L2_CID_MPEG_VIDEO_H264_LEVEL;
306   baseclass->level_to_string = v4l2_level_to_string;
307   baseclass->level_from_string = v4l2_level_from_string;
308 }
309 
310 /* Probing functions */
311 gboolean
gst_v4l2_is_h264_enc(GstCaps * sink_caps,GstCaps * src_caps)312 gst_v4l2_is_h264_enc (GstCaps * sink_caps, GstCaps * src_caps)
313 {
314   return gst_v4l2_is_video_enc (sink_caps, src_caps,
315       gst_static_caps_get (&src_template_caps));
316 }
317 
318 void
gst_v4l2_h264_enc_register(GstPlugin * plugin,const gchar * basename,const gchar * device_path,GstCaps * sink_caps,GstCaps * src_caps)319 gst_v4l2_h264_enc_register (GstPlugin * plugin, const gchar * basename,
320     const gchar * device_path, GstCaps * sink_caps, GstCaps * src_caps)
321 {
322   gst_v4l2_video_enc_register (plugin, GST_TYPE_V4L2_H264_ENC,
323       "h264", basename, device_path, sink_caps,
324       gst_static_caps_get (&src_template_caps), src_caps);
325 }
326