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Merge remote-tracking branch 'qatar/master'

Browse Source 
* qatar/master:
  mpegtsenc: Support LATM packetization for AAC
  adtsenc: Don't expose the muxer internals to the rest of lavf
  mpegtsenc: use AVFormatContext for AAC packetization
  mpegtsenc: use AVERROR() for return codes

Conflicts:
	libavformat/adts.h
	libavformat/mpegtsenc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-06-03 02:56:52 +02:00
commit f67309cabe
5 changed files with 137 additions and 87 deletions
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1
configure vendored
View File

@ -1614,6 +1614,7 @@ matroska_demuxer_suggest="zlib bzlib"
mov_demuxer_suggest="zlib"
mp3_demuxer_select="mpegaudio_parser"
mp4_muxer_select="mov_muxer"
mpegts_muxer_select="adts_muxer latm_muxer"
mpegtsraw_demuxer_select="mpegts_demuxer"
mxf_d10_muxer_select="mxf_muxer"
ogg_demuxer_select="golomb"

2
libavformat/Makefile
View File

@ -177,7 +177,7 @@ OBJS-$(CONFIG_MPEG1VIDEO_MUXER) += rawenc.o
OBJS-$(CONFIG_MPEG2VIDEO_MUXER) += rawenc.o
OBJS-$(CONFIG_MPEGPS_DEMUXER) += mpeg.o
OBJS-$(CONFIG_MPEGTS_DEMUXER) += mpegts.o isom.o
OBJS-$(CONFIG_MPEGTS_MUXER) += mpegtsenc.o adtsenc.o
OBJS-$(CONFIG_MPEGTS_MUXER) += mpegtsenc.o
OBJS-$(CONFIG_MPEGVIDEO_DEMUXER) += mpegvideodec.o rawdec.o
OBJS-$(CONFIG_MPJPEG_MUXER) += mpjpeg.o
OBJS-$(CONFIG_MSNWC_TCP_DEMUXER) += msnwc_tcp.o

45
libavformat/adts.h
View File

@ -1,45 +0,0 @@
/*
* ADTS muxer.
* Copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@smartjog.com>
* Mans Rullgard <mans@mansr.com>
*
* 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
*/
#ifndef AVFORMAT_ADTS_H
#define AVFORMAT_ADTS_H
#include "avformat.h"
#include "libavcodec/mpeg4audio.h"
#define ADTS_HEADER_SIZE 7
typedef struct {
int write_adts;
int objecttype;
int sample_rate_index;
int channel_conf;
int pce_size;
uint8_t pce_data[MAX_PCE_SIZE];
} ADTSContext;
int ff_adts_write_frame_header(ADTSContext *ctx, uint8_t *buf,
int size, int pce_size);
int ff_adts_decode_extradata(AVFormatContext *s, ADTSContext *adts,
uint8_t *buf, int size);
#endif /* AVFORMAT_ADTS_H */

22
libavformat/adtsenc.c
View File

@ -25,11 +25,21 @@
#include "libavcodec/avcodec.h"
#include "libavcodec/mpeg4audio.h"
#include "avformat.h"
#include "adts.h"
#define ADTS_HEADER_SIZE 7
typedef struct {
int write_adts;
int objecttype;
int sample_rate_index;
int channel_conf;
int pce_size;
uint8_t pce_data[MAX_PCE_SIZE];
} ADTSContext;
#define ADTS_MAX_FRAME_BYTES ((1 << 13) - 1)
int ff_adts_decode_extradata(AVFormatContext *s, ADTSContext *adts, uint8_t *buf, int size)
static int adts_decode_extradata(AVFormatContext *s, ADTSContext *adts, uint8_t *buf, int size)
{
GetBitContext gb;
PutBitContext pb;
@ -84,14 +94,14 @@ static int adts_write_header(AVFormatContext *s)
AVCodecContext *avc = s->streams[0]->codec;
if (avc->extradata_size > 0 &&
ff_adts_decode_extradata(s, adts, avc->extradata, avc->extradata_size) < 0)
adts_decode_extradata(s, adts, avc->extradata, avc->extradata_size) < 0)
return -1;
return 0;
}
int ff_adts_write_frame_header(ADTSContext *ctx,
uint8_t *buf, int size, int pce_size)
static int adts_write_frame_header(ADTSContext *ctx,
uint8_t *buf, int size, int pce_size)
{
PutBitContext pb;
@ -137,7 +147,7 @@ static int adts_write_packet(AVFormatContext *s, AVPacket *pkt)
if (!pkt->size)
return 0;
if (adts->write_adts) {
int err = ff_adts_write_frame_header(adts, buf, pkt->size,
int err = adts_write_frame_header(adts, buf, pkt->size,
adts->pce_size);
if (err < 0)
return err;

154
libavformat/mpegtsenc.c
View File

@ -29,7 +29,6 @@
#include "avformat.h"
#include "internal.h"
#include "mpegts.h"
#include "adts.h"
#define PCR_TIME_BASE 27000000
@ -79,7 +78,11 @@ typedef struct MpegTSWrite {
int start_pid;
int m2ts_mode;
int reemit_pat_pmt;
int reemit_pat_pmt; // backward compatibility
#define MPEGTS_FLAG_REEMIT_PAT_PMT 0x01
#define MPEGTS_FLAG_AAC_LATM 0x02
int flags;
} MpegTSWrite;
/* a PES packet header is generated every DEFAULT_PES_HEADER_FREQ packets */
@ -103,6 +106,15 @@ static const AVOption options[] = {
{ "muxrate", NULL, offsetof(MpegTSWrite, mux_rate), AV_OPT_TYPE_INT, {1}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
{ "pes_payload_size", "Minimum PES packet payload in bytes",
offsetof(MpegTSWrite, pes_payload_size), AV_OPT_TYPE_INT, {DEFAULT_PES_PAYLOAD_SIZE}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
{ "mpegts_flags", "MPEG-TS muxing flags", offsetof(MpegTSWrite, flags), AV_OPT_TYPE_FLAGS, {.dbl = 0}, 0, INT_MAX,
AV_OPT_FLAG_ENCODING_PARAM, "mpegts_flags" },
{ "resend_headers", "Reemit PAT/PMT before writing the next packet",
0, AV_OPT_TYPE_CONST, {.dbl = MPEGTS_FLAG_REEMIT_PAT_PMT}, 0, INT_MAX,
AV_OPT_FLAG_ENCODING_PARAM, "mpegts_flags"},
{ "latm", "Use LATM packetization for AAC",
0, AV_OPT_TYPE_CONST, {.dbl = MPEGTS_FLAG_AAC_LATM}, 0, INT_MAX,
AV_OPT_FLAG_ENCODING_PARAM, "mpegts_flags"},
// backward compatibility
{ "resend_headers", "Reemit PAT/PMT before writing the next packet",
offsetof(MpegTSWrite, reemit_pat_pmt), AV_OPT_TYPE_INT, {0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
{ NULL },
@ -220,7 +232,11 @@ typedef struct MpegTSWriteStream {
int64_t payload_dts;
int payload_flags;
uint8_t *payload;
ADTSContext *adts;
uint8_t *adata;
int adata_pos;
int adata_size;
AVFormatContext *amux;
} MpegTSWriteStream;
static void mpegts_write_pat(AVFormatContext *s)
@ -242,7 +258,7 @@ static void mpegts_write_pat(AVFormatContext *s)
static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
{
// MpegTSWrite *ts = s->priv_data;
MpegTSWrite *ts = s->priv_data;
uint8_t data[1012], *q, *desc_length_ptr, *program_info_length_ptr;
int val, stream_type, i;
@ -281,7 +297,7 @@ static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
stream_type = STREAM_TYPE_AUDIO_MPEG1;
break;
case CODEC_ID_AAC:
stream_type = STREAM_TYPE_AUDIO_AAC;
stream_type = (ts->flags & MPEGTS_FLAG_AAC_LATM) ? STREAM_TYPE_AUDIO_AAC_LATM : STREAM_TYPE_AUDIO_AAC;
break;
case CODEC_ID_AAC_LATM:
stream_type = STREAM_TYPE_AUDIO_AAC_LATM;
@ -487,6 +503,19 @@ static void section_write_packet(MpegTSSection *s, const uint8_t *packet)
avio_write(ctx->pb, packet, TS_PACKET_SIZE);
}
/* Write callback for audio packetizer */
static int mpegts_audio_write(void *opaque, uint8_t *buf, int size)
{
MpegTSWriteStream *ts_st = (MpegTSWriteStream *)opaque;
if (ts_st->adata_pos + size > ts_st->adata_size)
return AVERROR(EIO);
memcpy(ts_st->adata + ts_st->adata_pos, buf, size);
ts_st->adata_pos += size;
return 0;
}
static int mpegts_write_header(AVFormatContext *s)
{
MpegTSWrite *ts = s->priv_data;
@ -498,6 +527,7 @@ static int mpegts_write_header(AVFormatContext *s)
const char *service_name;
const char *provider_name;
int *pids;
int ret;
if (s->max_delay < 0) /* Not set by the caller */
s->max_delay = 0;
@ -538,12 +568,16 @@ static int mpegts_write_header(AVFormatContext *s)
st = s->streams[i];
avpriv_set_pts_info(st, 33, 1, 90000);
ts_st = av_mallocz(sizeof(MpegTSWriteStream));
if (!ts_st)
if (!ts_st) {
ret = AVERROR(ENOMEM);
goto fail;
}
st->priv_data = ts_st;
ts_st->payload = av_mallocz(ts->pes_payload_size);
if (!ts_st->payload)
if (!ts_st->payload) {
ret = AVERROR(ENOMEM);
goto fail;
}
ts_st->service = service;
/* MPEG pid values < 16 are reserved. Applications which set st->id in
* this range are assigned a calculated pid. */
@ -553,15 +587,18 @@ static int mpegts_write_header(AVFormatContext *s)
ts_st->pid = st->id;
} else {
av_log(s, AV_LOG_ERROR, "Invalid stream id %d, must be less than 8191\n", st->id);
ret = AVERROR(EINVAL);
goto fail;
}
if (ts_st->pid == service->pmt.pid) {
av_log(s, AV_LOG_ERROR, "Duplicate stream id %d\n", ts_st->pid);
ret = AVERROR(EINVAL);
goto fail;
}
for (j = 0; j < i; j++)
if (pids[j] == ts_st->pid) {
av_log(s, AV_LOG_ERROR, "Duplicate stream id %d\n", ts_st->pid);
ret = AVERROR(EINVAL);
goto fail;
}
pids[i] = ts_st->pid;
@ -576,12 +613,39 @@ static int mpegts_write_header(AVFormatContext *s)
pcr_st = st;
}
if (st->codec->codec_id == CODEC_ID_AAC &&
st->codec->extradata_size > 0) {
ts_st->adts = av_mallocz(sizeof(*ts_st->adts));
if (!ts_st->adts)
st->codec->extradata_size > 0)
{
AVStream *ast;
uint8_t *buffer;
int buffer_size = 32768;
ts_st->amux = avformat_alloc_context();
if (!ts_st->amux) {
ret = AVERROR(ENOMEM);
goto fail;
if (ff_adts_decode_extradata(s, ts_st->adts, st->codec->extradata,
st->codec->extradata_size) < 0)
}
buffer = av_malloc(buffer_size);
if (!buffer) {
ret = AVERROR(ENOMEM);
goto fail;
}
ts_st->amux->pb = avio_alloc_context(buffer, buffer_size, AVIO_FLAG_WRITE,
ts_st, NULL, mpegts_audio_write, NULL);
if (!ts_st->amux->pb) {
av_free(buffer);
ret = AVERROR(ENOMEM);
goto fail;
}
ts_st->amux->oformat = av_guess_format((ts->flags & MPEGTS_FLAG_AAC_LATM) ? "latm" : "adts", NULL, NULL);
if (!ts_st->amux->oformat) {
ret = AVERROR(EINVAL);
goto fail;
}
ast = avformat_new_stream(ts_st->amux, NULL);
ret = avcodec_copy_context(ast->codec, st->codec);
if (ret != 0)
goto fail;
ret = avformat_write_header(ts_st->amux, NULL);
if (ret < 0)
goto fail;
}
}
@ -658,11 +722,15 @@ static int mpegts_write_header(AVFormatContext *s)
ts_st = st->priv_data;
if (ts_st) {
av_freep(&ts_st->payload);
av_freep(&ts_st->adts);
if (ts_st->amux) {
av_free(ts_st->amux->pb->buffer);
av_free(ts_st->amux->pb);
avformat_free_context(ts_st->amux);
}
}
av_freep(&st->priv_data);
}
return AVERROR(EINVAL);
return ret;
}
/* send SDT, PAT and PMT tables regulary */
@ -994,9 +1062,15 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
int64_t dts = AV_NOPTS_VALUE, pts = AV_NOPTS_VALUE;
if (ts->reemit_pat_pmt) {
av_log(s, AV_LOG_WARNING, "resend_headers option is deprecated, use -mpegts_flags resend_headers\n");
ts->reemit_pat_pmt = 0;
ts->flags |= MPEGTS_FLAG_REEMIT_PAT_PMT;
}
if (ts->flags & MPEGTS_FLAG_REEMIT_PAT_PMT) {
ts->pat_packet_count = ts->pat_packet_period - 1;
ts->sdt_packet_count = ts->sdt_packet_period - 1;
ts->reemit_pat_pmt = 0;
ts->flags &= ~MPEGTS_FLAG_REEMIT_PAT_PMT;
}
if (pkt->pts != AV_NOPTS_VALUE)
@ -1017,7 +1091,7 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
if (pkt->size < 5 || AV_RB32(pkt->data) != 0x0000001) {
av_log(s, AV_LOG_ERROR, "H.264 bitstream malformed, "
"no startcode found, use the h264_mp4toannexb bitstream filter (-bsf h264_mp4toannexb)\n");
return AVERROR_INVALIDDATA;
return AVERROR(EINVAL);
}
do {
@ -1038,35 +1112,41 @@ static int mpegts_write_packet_internal(AVFormatContext *s, AVPacket *pkt)
size = pkt->size+6;
}
} else if (st->codec->codec_id == CODEC_ID_AAC) {
if (pkt->size < 2)
if (pkt->size < 2) {
av_log(s, AV_LOG_ERROR, "AAC packet too short\n");
return AVERROR_INVALIDDATA;
}
if ((AV_RB16(pkt->data) & 0xfff0) != 0xfff0) {
ADTSContext *adts = ts_st->adts;
int new_size, err;
if (!adts) {
int ret;
AVPacket pkt2;
if (!ts_st->amux) {
av_log(s, AV_LOG_ERROR, "AAC bitstream not in ADTS format "
"and extradata missing\n");
return AVERROR_INVALIDDATA;
}
new_size = ADTS_HEADER_SIZE+adts->pce_size+pkt->size;
if ((unsigned)new_size >= INT_MAX)
return AVERROR_INVALIDDATA;
data = av_malloc(new_size);
av_init_packet(&pkt2);
pkt2.data = pkt->data;
pkt2.size = pkt->size;
ts_st->adata_size = 1024 + pkt->size;
ts_st->adata = data = av_malloc(ts_st->adata_size);
ts_st->adata_pos = 0;
if (!data)
return AVERROR(ENOMEM);
err = ff_adts_write_frame_header(adts, data, pkt->size,
adts->pce_size);
if (err < 0) {
ret = av_write_frame(ts_st->amux, &pkt2);
if (ret < 0) {
av_free(data);
return err;
return ret;
}
if (adts->pce_size) {
memcpy(data+ADTS_HEADER_SIZE, adts->pce_data, adts->pce_size);
adts->pce_size = 0;
avio_flush(ts_st->amux->pb);
if (ts_st->amux->pb->error < 0) {
av_free(data);
return ts_st->amux->pb->error;
}
memcpy(data+ADTS_HEADER_SIZE+adts->pce_size, pkt->data, pkt->size);
buf = data;
size = new_size;
buf = ts_st->adata;
size = ts_st->adata_pos;
}
}
@ -1154,7 +1234,11 @@ static int mpegts_write_end(AVFormatContext *s)
AVStream *st = s->streams[i];
MpegTSWriteStream *ts_st = st->priv_data;
av_freep(&ts_st->payload);
av_freep(&ts_st->adts);
if (ts_st->amux) {
av_free(ts_st->amux->pb->buffer);
av_free(ts_st->amux->pb);
avformat_free_context(ts_st->amux);
}
}
for(i = 0; i < ts->nb_services; i++) {