blob: 2de09ac23345035837d0cdbf87491941e7423554
1 | /* |
2 | * Copyright (c) 2011 Miroslav Slugeň <Thunder.m@seznam.cz> |
3 | * |
4 | * This file is part of FFmpeg. |
5 | * |
6 | * FFmpeg is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU Lesser General Public |
8 | * License as published by the Free Software Foundation; either |
9 | * version 2.1 of the License, or (at your option) any later version. |
10 | * |
11 | * FFmpeg 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 GNU |
14 | * Lesser General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU Lesser General Public |
17 | * License along with FFmpeg; if not, write to the Free Software |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
19 | */ |
20 | |
21 | #include "libavutil/attributes.h" |
22 | #include "avformat.h" |
23 | #include "rtpdec_formats.h" |
24 | |
25 | #define RTP_G726_HANDLER(bitrate) \ |
26 | static av_cold int g726_ ## bitrate ##_init(AVFormatContext *s, int st_index, \ |
27 | PayloadContext *data) \ |
28 | { \ |
29 | AVStream *stream = s->streams[st_index]; \ |
30 | AVCodecParameters *par = stream->codecpar; \ |
31 | \ |
32 | par->bits_per_coded_sample = bitrate/8; \ |
33 | par->bit_rate = par->bits_per_coded_sample * par->sample_rate; \ |
34 | \ |
35 | return 0; \ |
36 | } \ |
37 | \ |
38 | RTPDynamicProtocolHandler ff_g726_ ## bitrate ## _dynamic_handler = { \ |
39 | .enc_name = "AAL2-G726-" #bitrate, \ |
40 | .codec_type = AVMEDIA_TYPE_AUDIO, \ |
41 | .codec_id = AV_CODEC_ID_ADPCM_G726, \ |
42 | .init = g726_ ## bitrate ## _init, \ |
43 | }; \ |
44 | RTPDynamicProtocolHandler ff_g726le_ ## bitrate ## _dynamic_handler = { \ |
45 | .enc_name = "G726-" #bitrate, \ |
46 | .codec_type = AVMEDIA_TYPE_AUDIO, \ |
47 | .codec_id = AV_CODEC_ID_ADPCM_G726LE, \ |
48 | .init = g726_ ## bitrate ## _init, \ |
49 | } |
50 | |
51 | RTP_G726_HANDLER(16); |
52 | RTP_G726_HANDLER(24); |
53 | RTP_G726_HANDLER(32); |
54 | RTP_G726_HANDLER(40); |
55 |