1 /*****************************************************************************
2 * mpeg4.h: MPEG4 ISO-14496-1 definitions
3 *****************************************************************************
4 * Copyright (C) 2001-2019 VLC authors, VideoLAN and VideoLabs
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU Lesser General Public License as published by
8 * the Free Software Foundation; either version 2.1 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public License
17 * along with this program; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
19 *****************************************************************************/
20 #ifndef MP4_MPEG4_H
21 #define MP4_MPEG4_H
22
23 #include <vlc_codec.h>
24 #include "../../packetizer/dts_header.h"
25
MPEG4_Codec_By_ObjectType(uint8_t oti,const uint8_t * p_dsi,size_t i_dsi,vlc_fourcc_t * pi_codec,int * pi_profile)26 static inline bool MPEG4_Codec_By_ObjectType(uint8_t oti,
27 const uint8_t *p_dsi,
28 size_t i_dsi,
29 vlc_fourcc_t *pi_codec,
30 int *pi_profile)
31 {
32 /* See 14496-1 and http://mp4ra.org/#/object_types */
33 switch(oti)
34 {
35 case 0x20: /* MPEG4 VIDEO */
36 *pi_codec = VLC_CODEC_MP4V;
37 break;
38 case 0x21: /* H.264 */
39 *pi_codec = VLC_CODEC_H264;
40 break;
41 case 0x40:
42 case 0x41:
43 *pi_codec = VLC_CODEC_MP4A;
44 if(i_dsi >= 2 && p_dsi[0] == 0xF8 && (p_dsi[1]&0xE0)== 0x80)
45 *pi_codec = VLC_CODEC_ALS;
46 break;
47 case 0x60:
48 case 0x61:
49 case 0x62:
50 case 0x63:
51 case 0x64:
52 case 0x65: /* MPEG2 video */
53 *pi_codec = VLC_CODEC_MPGV;
54 break;
55 /* Theses are MPEG2-AAC */
56 case 0x66: /* main profile */
57 case 0x67: /* Low complexity profile */
58 case 0x68: /* Scaleable Sampling rate profile */
59 *pi_codec = VLC_CODEC_MP4A;
60 break;
61 /* True MPEG 2 audio */
62 case 0x69:
63 *pi_codec = VLC_CODEC_MPGA;
64 break;
65 case 0x6a: /* MPEG1 video */
66 *pi_codec = VLC_CODEC_MPGV;
67 break;
68 case 0x6b: /* MPEG1 audio */
69 *pi_codec = VLC_CODEC_MPGA;
70 break;
71 case 0x6c: /* jpeg */
72 *pi_codec = VLC_CODEC_JPEG;
73 break;
74 case 0x6d: /* png */
75 *pi_codec = VLC_CODEC_PNG;
76 break;
77 case 0x6e: /* jpeg2000 */
78 *pi_codec = VLC_FOURCC('M','J','2','C');
79 break;
80 case 0xa3: /* vc1 */
81 *pi_codec = VLC_CODEC_VC1;
82 break;
83 case 0xa4:
84 *pi_codec = VLC_CODEC_DIRAC;
85 break;
86 case 0xa5:
87 *pi_codec = VLC_CODEC_A52;
88 break;
89 case 0xa6:
90 *pi_codec = VLC_CODEC_EAC3;
91 break;
92 case 0xa9: /* dts */
93 *pi_codec = VLC_CODEC_DTS;
94 break;
95 case 0xaa: /* DTS-HD HRA */
96 case 0xab: /* DTS-HD Master Audio */
97 *pi_codec = VLC_CODEC_DTS;
98 break;
99 case 0xac: /* Extension Substream containing only LBR */
100 *pi_codec = VLC_CODEC_DTS;
101 break;
102 case 0xDD:
103 *pi_codec = VLC_CODEC_VORBIS;
104 break;
105 default:
106 return false;
107 }
108 return true;
109 }
110
111 #endif
112