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Merge commit 'c6f1dc8e4cd967ae056698eafb891a08003c211c'

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* commit 'c6f1dc8e4cd967ae056698eafb891a08003c211c':
  rtpdec: Move setting the parsing flags to the actual depacketizers
  rtpdec: Split handling of mpeg12 audio/video to a separate depacketizer

Conflicts:
	libavformat/rtpdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-01-21 14:00:03 +01:00
commit 0a5da9cc14
9 changed files with 130 additions and 52 deletions
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1
libavformat/Makefile
View File

@ -37,6 +37,7 @@ OBJS-$(CONFIG_RTPDEC) += rdt.o \
rtpdec_ilbc.o \
rtpdec_jpeg.o \
rtpdec_latm.o \
rtpdec_mpeg12.o \
rtpdec_mpeg4.o \
rtpdec_mpegts.o \
rtpdec_qcelp.o \

59
libavformat/rtpdec.c
View File

@ -74,6 +74,8 @@ void av_register_rtp_dynamic_payload_handlers(void)
ff_register_dynamic_payload_handler(&ff_jpeg_dynamic_handler);
ff_register_dynamic_payload_handler(&ff_mp4a_latm_dynamic_handler);
ff_register_dynamic_payload_handler(&ff_mp4v_es_dynamic_handler);
ff_register_dynamic_payload_handler(&ff_mpeg_audio_dynamic_handler);
ff_register_dynamic_payload_handler(&ff_mpeg_video_dynamic_handler);
ff_register_dynamic_payload_handler(&ff_mpeg4_generic_dynamic_handler);
ff_register_dynamic_payload_handler(&ff_mpegts_dynamic_handler);
ff_register_dynamic_payload_handler(&ff_ms_rtp_asf_pfv_handler);
@ -500,18 +502,6 @@ RTPDemuxContext *ff_rtp_parse_open(AVFormatContext *s1, AVStream *st,
rtp_init_statistics(&s->statistics, 0);
if (st) {
switch (st->codec->codec_id) {
case AV_CODEC_ID_MPEG1VIDEO:
case AV_CODEC_ID_MPEG2VIDEO:
case AV_CODEC_ID_MP2:
case AV_CODEC_ID_MP3:
case AV_CODEC_ID_MPEG4:
case AV_CODEC_ID_H263:
case AV_CODEC_ID_H264:
st->need_parsing = AVSTREAM_PARSE_FULL;
break;
case AV_CODEC_ID_VORBIS:
st->need_parsing = AVSTREAM_PARSE_HEADERS;
break;
case AV_CODEC_ID_ADPCM_G722:
/* According to RFC 3551, the stream clock rate is 8000
* even if the sample rate is 16000. */
@ -583,12 +573,13 @@ static void finalize_packet(RTPDemuxContext *s, AVPacket *pkt, uint32_t timestam
static int rtp_parse_packet_internal(RTPDemuxContext *s, AVPacket *pkt,
const uint8_t *buf, int len)
{
unsigned int ssrc, h;
unsigned int ssrc;
int payload_type, seq, flags = 0;
int ext;
AVStream *st;
uint32_t timestamp;
int rv = 0;
int h;
ext = buf[0] & 0x10;
payload_type = buf[1] & 0x7f;
@ -649,45 +640,9 @@ static int rtp_parse_packet_internal(RTPDemuxContext *s, AVPacket *pkt,
} else if (st) {
/* At this point, the RTP header has been stripped;
* This is ASSUMING that there is only 1 CSRC, which isn't wise. */
switch (st->codec->codec_id) {
case AV_CODEC_ID_MP2:
case AV_CODEC_ID_MP3:
/* better than nothing: skip MPEG audio RTP header */
if (len <= 4)
return -1;
h = AV_RB32(buf);
len -= 4;
buf += 4;
if (av_new_packet(pkt, len) < 0)
return AVERROR(ENOMEM);
memcpy(pkt->data, buf, len);
break;
case AV_CODEC_ID_MPEG1VIDEO:
case AV_CODEC_ID_MPEG2VIDEO:
/* better than nothing: skip MPEG video RTP header */
if (len <= 4)
return -1;
h = AV_RB32(buf);
buf += 4;
len -= 4;
if (h & (1 << 26)) {
/* MPEG-2 */
if (len <= 4)
return -1;
buf += 4;
len -= 4;
}
if (av_new_packet(pkt, len) < 0)
return AVERROR(ENOMEM);
memcpy(pkt->data, buf, len);
break;
default:
if (av_new_packet(pkt, len) < 0)
return AVERROR(ENOMEM);
memcpy(pkt->data, buf, len);
break;
}
if (av_new_packet(pkt, len) < 0)
return AVERROR(ENOMEM);
memcpy(pkt->data, buf, len);
pkt->stream_index = st->index;
} else {
return AVERROR(EINVAL);

2
libavformat/rtpdec_formats.h
View File

@ -49,6 +49,8 @@ extern RTPDynamicProtocolHandler ff_ilbc_dynamic_handler;
extern RTPDynamicProtocolHandler ff_jpeg_dynamic_handler;
extern RTPDynamicProtocolHandler ff_mp4a_latm_dynamic_handler;
extern RTPDynamicProtocolHandler ff_mp4v_es_dynamic_handler;
extern RTPDynamicProtocolHandler ff_mpeg_audio_dynamic_handler;
extern RTPDynamicProtocolHandler ff_mpeg_video_dynamic_handler;
extern RTPDynamicProtocolHandler ff_mpeg4_generic_dynamic_handler;
extern RTPDynamicProtocolHandler ff_mpegts_dynamic_handler;
extern RTPDynamicProtocolHandler ff_ms_rtp_asf_pfa_handler;

10
libavformat/rtpdec_h263.c
View File

@ -23,6 +23,14 @@
#include "rtpdec_formats.h"
#include "libavutil/intreadwrite.h"
static int h263_init(AVFormatContext *ctx, int st_index, PayloadContext *data)
{
if (st_index < 0)
return 0;
ctx->streams[st_index]->need_parsing = AVSTREAM_PARSE_FULL;
return 0;
}
int ff_h263_handle_packet(AVFormatContext *ctx, PayloadContext *data,
AVStream *st, AVPacket *pkt, uint32_t *timestamp,
const uint8_t *buf, int len, uint16_t seq, int flags)
@ -92,6 +100,7 @@ RTPDynamicProtocolHandler ff_h263_1998_dynamic_handler = {
.enc_name = "H263-1998",
.codec_type = AVMEDIA_TYPE_VIDEO,
.codec_id = AV_CODEC_ID_H263,
.init = h263_init,
.parse_packet = ff_h263_handle_packet,
};
@ -99,5 +108,6 @@ RTPDynamicProtocolHandler ff_h263_2000_dynamic_handler = {
.enc_name = "H263-2000",
.codec_type = AVMEDIA_TYPE_VIDEO,
.codec_id = AV_CODEC_ID_H263,
.init = h263_init,
.parse_packet = ff_h263_handle_packet,
};

9
libavformat/rtpdec_h263_rfc2190.c
View File

@ -55,6 +55,14 @@ static void h263_free_context(PayloadContext *data)
av_free(data);
}
static int h263_init(AVFormatContext *ctx, int st_index, PayloadContext *data)
{
if (st_index < 0)
return 0;
ctx->streams[st_index]->need_parsing = AVSTREAM_PARSE_FULL;
return 0;
}
static int h263_handle_packet(AVFormatContext *ctx, PayloadContext *data,
AVStream *st, AVPacket *pkt, uint32_t *timestamp,
const uint8_t *buf, int len, uint16_t seq,
@ -198,6 +206,7 @@ static int h263_handle_packet(AVFormatContext *ctx, PayloadContext *data,
RTPDynamicProtocolHandler ff_h263_rfc2190_dynamic_handler = {
.codec_type = AVMEDIA_TYPE_VIDEO,
.codec_id = AV_CODEC_ID_H263,
.init = h263_init,
.parse_packet = h263_handle_packet,
.alloc = h263_new_context,
.free = h263_free_context,

9
libavformat/rtpdec_h264.c
View File

@ -338,6 +338,14 @@ static void h264_free_context(PayloadContext *data)
av_free(data);
}
static int h264_init(AVFormatContext *s, int st_index, PayloadContext *data)
{
if (st_index < 0)
return 0;
s->streams[st_index]->need_parsing = AVSTREAM_PARSE_FULL;
return 0;
}
static int parse_h264_sdp_line(AVFormatContext *s, int st_index,
PayloadContext *h264_data, const char *line)
{
@ -383,6 +391,7 @@ RTPDynamicProtocolHandler ff_h264_dynamic_handler = {
.enc_name = "H264",
.codec_type = AVMEDIA_TYPE_VIDEO,
.codec_id = AV_CODEC_ID_H264,
.init = h264_init,
.parse_sdp_a_line = parse_h264_sdp_line,
.alloc = h264_new_context,
.free = h264_free_context,

72
libavformat/rtpdec_mpeg12.c Normal file
View File

@ -0,0 +1,72 @@
/*
* Common code for the RTP depacketization of MPEG-1/2 formats.
* Copyright (c) 2002 Fabrice Bellard
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "rtpdec_formats.h"
#include "libavutil/intreadwrite.h"
static int mpeg_init(AVFormatContext *ctx, int st_index, PayloadContext *data)
{
if (st_index < 0)
return 0;
ctx->streams[st_index]->need_parsing = AVSTREAM_PARSE_FULL;
return 0;
}
static int mpeg_parse_packet(AVFormatContext *ctx, PayloadContext *data,
AVStream *st, AVPacket *pkt, uint32_t *timestamp,
const uint8_t *buf, int len, uint16_t seq,
int flags)
{
unsigned int h;
if (len <= 4)
return AVERROR_INVALIDDATA;
h = AV_RB32(buf);
buf += 4;
len -= 4;
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && h & (1 << 26)) {
/* MPEG-2 */
if (len <= 4)
return AVERROR_INVALIDDATA;
buf += 4;
len -= 4;
}
if (av_new_packet(pkt, len) < 0)
return AVERROR(ENOMEM);
memcpy(pkt->data, buf, len);
pkt->stream_index = st->index;
return 0;
}
RTPDynamicProtocolHandler ff_mpeg_audio_dynamic_handler = {
.codec_type = AVMEDIA_TYPE_AUDIO,
.codec_id = AV_CODEC_ID_MP3,
.init = mpeg_init,
.parse_packet = mpeg_parse_packet,
.static_payload_id = 14,
};
RTPDynamicProtocolHandler ff_mpeg_video_dynamic_handler = {
.codec_type = AVMEDIA_TYPE_VIDEO,
.codec_id = AV_CODEC_ID_MPEG2VIDEO,
.init = mpeg_init,
.parse_packet = mpeg_parse_packet,
.static_payload_id = 32,
};

9
libavformat/rtpdec_mpeg4.c
View File

@ -252,10 +252,19 @@ static int parse_sdp_line(AVFormatContext *s, int st_index,
return 0;
}
static int init_video(AVFormatContext *s, int st_index, PayloadContext *data)
{
if (st_index < 0)
return 0;
s->streams[st_index]->need_parsing = AVSTREAM_PARSE_FULL;
return 0;
}
RTPDynamicProtocolHandler ff_mp4v_es_dynamic_handler = {
.enc_name = "MP4V-ES",
.codec_type = AVMEDIA_TYPE_VIDEO,
.codec_id = AV_CODEC_ID_MPEG4,
.init = init_video,
.parse_sdp_a_line = parse_sdp_line,
};

11
libavformat/rtpdec_xiph.c
View File

@ -69,6 +69,16 @@ static void xiph_free_context(PayloadContext * data)
av_free(data);
}
static int xiph_vorbis_init(AVFormatContext *ctx, int st_index,
PayloadContext *data)
{
if (st_index < 0)
return 0;
ctx->streams[st_index]->need_parsing = AVSTREAM_PARSE_HEADERS;
return 0;
}
static int xiph_handle_packet(AVFormatContext *ctx, PayloadContext *data,
AVStream *st, AVPacket *pkt, uint32_t *timestamp,
const uint8_t *buf, int len, uint16_t seq,
@ -391,6 +401,7 @@ RTPDynamicProtocolHandler ff_vorbis_dynamic_handler = {
.enc_name = "vorbis",
.codec_type = AVMEDIA_TYPE_AUDIO,
.codec_id = AV_CODEC_ID_VORBIS,
.init = xiph_vorbis_init,
.parse_sdp_a_line = xiph_parse_sdp_line,
.alloc = xiph_new_context,
.free = xiph_free_context,