2 * Common code for the RTP depacketization of MPEG-1/2 formats.
3 * Copyright (c) 2002 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #include "libavutil/attributes.h"
23 #include "libavutil/intreadwrite.h"
24 #include "rtpdec_formats.h"
26 static av_cold
int mpeg_init(AVFormatContext
*ctx
, int st_index
, PayloadContext
*data
)
30 ctx
->streams
[st_index
]->need_parsing
= AVSTREAM_PARSE_FULL
;
34 static int mpeg_parse_packet(AVFormatContext
*ctx
, PayloadContext
*data
,
35 AVStream
*st
, AVPacket
*pkt
, uint32_t *timestamp
,
36 const uint8_t *buf
, int len
, uint16_t seq
,
41 return AVERROR_INVALIDDATA
;
45 if (st
->codec
->codec_type
== AVMEDIA_TYPE_VIDEO
&& h
& (1 << 26)) {
48 return AVERROR_INVALIDDATA
;
52 if (av_new_packet(pkt
, len
) < 0)
53 return AVERROR(ENOMEM
);
54 memcpy(pkt
->data
, buf
, len
);
55 pkt
->stream_index
= st
->index
;
59 RTPDynamicProtocolHandler ff_mpeg_audio_dynamic_handler
= {
60 .codec_type
= AVMEDIA_TYPE_AUDIO
,
61 .codec_id
= AV_CODEC_ID_MP3
,
63 .parse_packet
= mpeg_parse_packet
,
64 .static_payload_id
= 14,
67 RTPDynamicProtocolHandler ff_mpeg_video_dynamic_handler
= {
68 .codec_type
= AVMEDIA_TYPE_VIDEO
,
69 .codec_id
= AV_CODEC_ID_MPEG2VIDEO
,
71 .parse_packet
= mpeg_parse_packet
,
72 .static_payload_id
= 32,