d4f5d74a |
/* |
7fbde343 |
* FLV muxer |
406792e7 |
* Copyright (c) 2003 The FFmpeg Project |
d4f5d74a |
* |
b78e7197 |
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or |
d4f5d74a |
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either |
b78e7197 |
* version 2.1 of the License, or (at your option) any later version. |
d4f5d74a |
* |
b78e7197 |
* FFmpeg is distributed in the hope that it will be useful, |
d4f5d74a |
* 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 |
b78e7197 |
* License along with FFmpeg; if not, write to the Free Software |
5509bffa |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
d4f5d74a |
*/ |
c22f2527 |
#include "libavutil/intreadwrite.h" |
1cb34ea4 |
#include "libavutil/dict.h" |
3383a53e |
#include "libavutil/intfloat.h" |
4453f6b8 |
#include "libavutil/avassert.h" |
371df9ba |
#include "libavutil/mathematics.h" |
863ebe6f |
#include "avio_internal.h"
#include "avio.h" |
1cb34ea4 |
#include "avc.h" |
d4f5d74a |
#include "avformat.h" |
6cac3a3b |
#include "flv.h" |
80b39e1c |
#include "internal.h" |
16f82508 |
#include "metadata.h" |
acb430e4 |
#include "libavutil/opt.h"
#include "libavcodec/put_bits.h"
#include "libavcodec/aacenctab.h" |
d4f5d74a |
|
068f2a22 |
|
7caf0cc6 |
static const AVCodecTag flv_video_codec_ids[] = { |
36ef5369 |
{ AV_CODEC_ID_FLV1, FLV_CODECID_H263 }, |
7a72695c |
{ AV_CODEC_ID_H263, FLV_CODECID_REALH263 },
{ AV_CODEC_ID_MPEG4, FLV_CODECID_MPEG4 }, |
36ef5369 |
{ AV_CODEC_ID_FLASHSV, FLV_CODECID_SCREEN },
{ AV_CODEC_ID_FLASHSV2, FLV_CODECID_SCREEN2 },
{ AV_CODEC_ID_VP6F, FLV_CODECID_VP6 }, |
b8667bcc |
{ AV_CODEC_ID_VP6, FLV_CODECID_VP6 }, |
7a72695c |
{ AV_CODEC_ID_VP6A, FLV_CODECID_VP6A }, |
36ef5369 |
{ AV_CODEC_ID_H264, FLV_CODECID_H264 },
{ AV_CODEC_ID_NONE, 0 } |
148c9bdb |
};
|
7caf0cc6 |
static const AVCodecTag flv_audio_codec_ids[] = { |
36ef5369 |
{ AV_CODEC_ID_MP3, FLV_CODECID_MP3 >> FLV_AUDIO_CODECID_OFFSET },
{ AV_CODEC_ID_PCM_U8, FLV_CODECID_PCM >> FLV_AUDIO_CODECID_OFFSET },
{ AV_CODEC_ID_PCM_S16BE, FLV_CODECID_PCM >> FLV_AUDIO_CODECID_OFFSET },
{ AV_CODEC_ID_PCM_S16LE, FLV_CODECID_PCM_LE >> FLV_AUDIO_CODECID_OFFSET },
{ AV_CODEC_ID_ADPCM_SWF, FLV_CODECID_ADPCM >> FLV_AUDIO_CODECID_OFFSET },
{ AV_CODEC_ID_AAC, FLV_CODECID_AAC >> FLV_AUDIO_CODECID_OFFSET },
{ AV_CODEC_ID_NELLYMOSER, FLV_CODECID_NELLYMOSER >> FLV_AUDIO_CODECID_OFFSET },
{ AV_CODEC_ID_PCM_MULAW, FLV_CODECID_PCM_MULAW >> FLV_AUDIO_CODECID_OFFSET },
{ AV_CODEC_ID_PCM_ALAW, FLV_CODECID_PCM_ALAW >> FLV_AUDIO_CODECID_OFFSET },
{ AV_CODEC_ID_SPEEX, FLV_CODECID_SPEEX >> FLV_AUDIO_CODECID_OFFSET },
{ AV_CODEC_ID_NONE, 0 } |
148c9bdb |
};
|
84aebfc7 |
typedef enum {
FLV_AAC_SEQ_HEADER_DETECT = (1 << 0), |
c8528e54 |
FLV_NO_SEQUENCE_END = (1 << 1), |
863ebe6f |
FLV_ADD_KEYFRAME_INDEX = (1 << 2), |
d316b21d |
FLV_NO_METADATA = (1 << 3), |
ee24c8ad |
FLV_NO_DURATION_FILESIZE = (1 << 4), |
84aebfc7 |
} FLVFlags;
|
863ebe6f |
typedef struct FLVFileposition {
int64_t keyframe_position;
double keyframe_timestamp;
struct FLVFileposition *next;
} FLVFileposition;
|
d4f5d74a |
typedef struct FLVContext { |
acb430e4 |
AVClass *av_class; |
1cb34ea4 |
int reserved; |
bc5c918e |
int64_t duration_offset;
int64_t filesize_offset; |
634b8cfa |
int64_t duration; |
905de119 |
int64_t delay; ///< first dts delay (needed for AVC & Speex) |
4d0cd5f5 |
|
863ebe6f |
int64_t datastart_offset;
int64_t datasize_offset;
int64_t datasize;
int64_t videosize_offset;
int64_t videosize;
int64_t audiosize_offset;
int64_t audiosize;
int64_t metadata_size_pos;
int64_t metadata_totalsize_pos;
int64_t metadata_totalsize;
int64_t keyframe_index_size;
int64_t lasttimestamp_offset;
double lasttimestamp;
int64_t lastkeyframetimestamp_offset;
double lastkeyframetimestamp;
int64_t lastkeyframelocation_offset;
int64_t lastkeyframelocation;
int acurframeindex;
int64_t keyframes_info_offset;
int64_t filepositions_count;
FLVFileposition *filepositions;
FLVFileposition *head_filepositions;
|
9200514a |
AVCodecParameters *audio_par;
AVCodecParameters *video_par; |
4d0cd5f5 |
double framerate; |
9200514a |
AVCodecParameters *data_par; |
acb430e4 |
int flags; |
d4f5d74a |
} FLVContext;
|
ef74e397 |
typedef struct FLVStreamContext {
int64_t last_ts; ///< last timestamp for each stream
} FLVStreamContext;
|
9200514a |
static int get_audio_flags(AVFormatContext *s, AVCodecParameters *par) |
0a3ad7ff |
{ |
9200514a |
int flags = (par->bits_per_coded_sample == 16) ? FLV_SAMPLESSIZE_16BIT |
1cb34ea4 |
: FLV_SAMPLESSIZE_8BIT; |
37cdf93d |
|
9200514a |
if (par->codec_id == AV_CODEC_ID_AAC) // specs force these parameters |
1cb34ea4 |
return FLV_CODECID_AAC | FLV_SAMPLERATE_44100HZ |
FLV_SAMPLESSIZE_16BIT | FLV_STEREO; |
9200514a |
else if (par->codec_id == AV_CODEC_ID_SPEEX) {
if (par->sample_rate != 16000) { |
1cb34ea4 |
av_log(s, AV_LOG_ERROR, |
da2ea7c3 |
"FLV only supports wideband (16kHz) Speex audio\n"); |
1bd6b0c9 |
return AVERROR(EINVAL); |
046c4001 |
} |
9200514a |
if (par->channels != 1) { |
da2ea7c3 |
av_log(s, AV_LOG_ERROR, "FLV only supports mono Speex audio\n"); |
1bd6b0c9 |
return AVERROR(EINVAL); |
046c4001 |
}
return FLV_CODECID_SPEEX | FLV_SAMPLERATE_11025HZ | FLV_SAMPLESSIZE_16BIT;
} else { |
9200514a |
switch (par->sample_rate) { |
2d72ea68 |
case 48000:
// 48khz mp3 is stored with 44k1 samplerate identifer
if (par->codec_id == AV_CODEC_ID_MP3) {
flags |= FLV_SAMPLERATE_44100HZ;
break;
} else {
goto error;
} |
1cb34ea4 |
case 44100: |
6cac3a3b |
flags |= FLV_SAMPLERATE_44100HZ; |
37cdf93d |
break; |
1cb34ea4 |
case 22050: |
6cac3a3b |
flags |= FLV_SAMPLERATE_22050HZ; |
37cdf93d |
break; |
1cb34ea4 |
case 11025: |
6cac3a3b |
flags |= FLV_SAMPLERATE_11025HZ; |
37cdf93d |
break; |
1cb34ea4 |
case 16000: // nellymoser only
case 8000: // nellymoser only
case 5512: // not MP3 |
9200514a |
if (par->codec_id != AV_CODEC_ID_MP3) { |
ec627278 |
flags |= FLV_SAMPLERATE_SPECIAL;
break; |
4838727e |
} |
37cdf93d |
default: |
2d72ea68 |
error: |
1cb34ea4 |
av_log(s, AV_LOG_ERROR, |
da2ea7c3 |
"FLV does not support sample rate %d, " |
6f69f7a8 |
"choose from (44100, 22050, 11025)\n", par->sample_rate); |
1bd6b0c9 |
return AVERROR(EINVAL); |
1cb34ea4 |
} |
f23496b5 |
} |
37cdf93d |
|
9200514a |
if (par->channels > 1) |
6cac3a3b |
flags |= FLV_STEREO; |
115329f1 |
|
9200514a |
switch (par->codec_id) { |
36ef5369 |
case AV_CODEC_ID_MP3: |
6cac3a3b |
flags |= FLV_CODECID_MP3 | FLV_SAMPLESSIZE_16BIT; |
37cdf93d |
break; |
36ef5369 |
case AV_CODEC_ID_PCM_U8: |
44de39f9 |
flags |= FLV_CODECID_PCM | FLV_SAMPLESSIZE_8BIT; |
bb270c08 |
break; |
36ef5369 |
case AV_CODEC_ID_PCM_S16BE: |
44de39f9 |
flags |= FLV_CODECID_PCM | FLV_SAMPLESSIZE_16BIT; |
bb270c08 |
break; |
36ef5369 |
case AV_CODEC_ID_PCM_S16LE: |
6cac3a3b |
flags |= FLV_CODECID_PCM_LE | FLV_SAMPLESSIZE_16BIT; |
bb270c08 |
break; |
36ef5369 |
case AV_CODEC_ID_ADPCM_SWF: |
1cb34ea4 |
flags |= FLV_CODECID_ADPCM | FLV_SAMPLESSIZE_16BIT; |
bb270c08 |
break; |
36ef5369 |
case AV_CODEC_ID_NELLYMOSER: |
9200514a |
if (par->sample_rate == 8000) |
1cb34ea4 |
flags |= FLV_CODECID_NELLYMOSER_8KHZ_MONO | FLV_SAMPLESSIZE_16BIT; |
9200514a |
else if (par->sample_rate == 16000) |
bd2ff1a8 |
flags |= FLV_CODECID_NELLYMOSER_16KHZ_MONO | FLV_SAMPLESSIZE_16BIT; |
1cb34ea4 |
else
flags |= FLV_CODECID_NELLYMOSER | FLV_SAMPLESSIZE_16BIT; |
b7d1cd02 |
break; |
36ef5369 |
case AV_CODEC_ID_PCM_MULAW: |
b92c7ee6 |
flags = FLV_CODECID_PCM_MULAW | FLV_SAMPLERATE_SPECIAL | FLV_SAMPLESSIZE_16BIT;
break; |
36ef5369 |
case AV_CODEC_ID_PCM_ALAW: |
b92c7ee6 |
flags = FLV_CODECID_PCM_ALAW | FLV_SAMPLERATE_SPECIAL | FLV_SAMPLESSIZE_16BIT; |
b7d1cd02 |
break; |
37cdf93d |
case 0: |
9200514a |
flags |= par->codec_tag << 4; |
37cdf93d |
break;
default: |
da2ea7c3 |
av_log(s, AV_LOG_ERROR, "Audio codec '%s' not compatible with FLV\n", |
6f69f7a8 |
avcodec_get_name(par->codec_id)); |
1bd6b0c9 |
return AVERROR(EINVAL); |
37cdf93d |
} |
115329f1 |
|
37cdf93d |
return flags;
}
|
ae628ec1 |
static void put_amf_string(AVIOContext *pb, const char *str) |
fd0fb306 |
{
size_t len = strlen(str); |
77eb5504 |
avio_wb16(pb, len);
avio_write(pb, str, len); |
fd0fb306 |
}
|
1cb34ea4 |
static void put_avc_eos_tag(AVIOContext *pb, unsigned ts)
{ |
77eb5504 |
avio_w8(pb, FLV_TAG_TYPE_VIDEO); |
1cb34ea4 |
avio_wb24(pb, 5); /* Tag Data Size */
avio_wb24(pb, ts); /* lower 24 bits of timestamp in ms */
avio_w8(pb, (ts >> 24) & 0x7F); /* MSB of ts in ms */
avio_wb24(pb, 0); /* StreamId = 0 */
avio_w8(pb, 23); /* ub[4] FrameType = 1, ub[4] CodecId = 7 */
avio_w8(pb, 2); /* AVC end of sequence */
avio_wb24(pb, 0); /* Always 0 for AVC EOS. */
avio_wb32(pb, 16); /* Size of FLV tag */ |
df4f1d51 |
}
|
ae628ec1 |
static void put_amf_double(AVIOContext *pb, double d) |
fd0fb306 |
{ |
77eb5504 |
avio_w8(pb, AMF_DATA_TYPE_NUMBER); |
3383a53e |
avio_wb64(pb, av_double2int(d)); |
fd0fb306 |
}
|
863ebe6f |
static void put_amf_byte(AVIOContext *pb, unsigned char abyte)
{
avio_w8(pb, abyte);
}
static void put_amf_dword_array(AVIOContext *pb, uint32_t dw)
{
avio_w8(pb, AMF_DATA_TYPE_ARRAY);
avio_wb32(pb, dw);
}
|
1cb34ea4 |
static void put_amf_bool(AVIOContext *pb, int b)
{ |
77eb5504 |
avio_w8(pb, AMF_DATA_TYPE_BOOL);
avio_w8(pb, !!b); |
148c9bdb |
}
|
c64f3615 |
static void write_metadata(AVFormatContext *s, unsigned int ts) |
d4f5d74a |
{ |
ae628ec1 |
AVIOContext *pb = s->pb; |
d4f5d74a |
FLVContext *flv = s->priv_data; |
ee24c8ad |
int write_duration_filesize = !(flv->flags & FLV_NO_DURATION_FILESIZE); |
cc5f7315 |
int metadata_count = 0; |
863ebe6f |
int64_t metadata_count_pos; |
d2d67e42 |
AVDictionaryEntry *tag = NULL; |
d4f5d74a |
|
fd0fb306 |
/* write meta_tag */ |
863ebe6f |
avio_w8(pb, FLV_TAG_TYPE_META); // tag type META
flv->metadata_size_pos = avio_tell(pb); |
1cb34ea4 |
avio_wb24(pb, 0); // size of data part (sum of all parts below) |
c64f3615 |
avio_wb24(pb, ts); // timestamp |
1cb34ea4 |
avio_wb32(pb, 0); // reserved |
fd0fb306 |
/* now data of data_size size */
/* first event name as a string */ |
77eb5504 |
avio_w8(pb, AMF_DATA_TYPE_STRING); |
fd0fb306 |
put_amf_string(pb, "onMetaData"); // 12 bytes
/* mixed array (hash) with size and string/type/data tuples */ |
77eb5504 |
avio_w8(pb, AMF_DATA_TYPE_MIXEDARRAY); |
cad0c375 |
metadata_count_pos = avio_tell(pb); |
9200514a |
metadata_count = 4 * !!flv->video_par +
5 * !!flv->audio_par + |
5702416c |
1 * !!flv->data_par; |
ee24c8ad |
if (write_duration_filesize) { |
5702416c |
metadata_count += 2; // +2 for duration and file size
} |
cad0c375 |
avio_wb32(pb, metadata_count); |
fd0fb306 |
|
ee24c8ad |
if (write_duration_filesize) { |
5702416c |
put_amf_string(pb, "duration");
flv->duration_offset = avio_tell(pb);
// fill in the guessed duration, it'll be corrected later if incorrect
put_amf_double(pb, s->duration / AV_TIME_BASE);
} |
1cb34ea4 |
|
9200514a |
if (flv->video_par) { |
fd0fb306 |
put_amf_string(pb, "width"); |
9200514a |
put_amf_double(pb, flv->video_par->width); |
fd0fb306 |
put_amf_string(pb, "height"); |
9200514a |
put_amf_double(pb, flv->video_par->height); |
fd0fb306 |
put_amf_string(pb, "videodatarate"); |
9200514a |
put_amf_double(pb, flv->video_par->bit_rate / 1024.0); |
fd0fb306 |
|
4d0cd5f5 |
if (flv->framerate != 0.0) { |
43e7f079 |
put_amf_string(pb, "framerate"); |
4d0cd5f5 |
put_amf_double(pb, flv->framerate); |
74bc9458 |
metadata_count++; |
43e7f079 |
} |
148c9bdb |
put_amf_string(pb, "videocodecid"); |
9200514a |
put_amf_double(pb, flv->video_par->codec_tag); |
fd0fb306 |
}
|
9200514a |
if (flv->audio_par) { |
426a6f34 |
put_amf_string(pb, "audiodatarate"); |
9200514a |
put_amf_double(pb, flv->audio_par->bit_rate / 1024.0); |
426a6f34 |
|
fd0fb306 |
put_amf_string(pb, "audiosamplerate"); |
9200514a |
put_amf_double(pb, flv->audio_par->sample_rate); |
148c9bdb |
put_amf_string(pb, "audiosamplesize"); |
9200514a |
put_amf_double(pb, flv->audio_par->codec_id == AV_CODEC_ID_PCM_U8 ? 8 : 16); |
148c9bdb |
put_amf_string(pb, "stereo"); |
9200514a |
put_amf_bool(pb, flv->audio_par->channels == 2); |
148c9bdb |
put_amf_string(pb, "audiocodecid"); |
9200514a |
put_amf_double(pb, flv->audio_par->codec_tag); |
fd0fb306 |
}
|
9200514a |
if (flv->data_par) { |
21e2dc9f |
put_amf_string(pb, "datastream");
put_amf_double(pb, 0.0);
}
|
28fbdece |
ff_standardize_creation_time(s); |
d2d67e42 |
while ((tag = av_dict_get(s->metadata, "", tag, AV_DICT_IGNORE_SUFFIX))) { |
714517b2 |
if( !strcmp(tag->key, "width")
||!strcmp(tag->key, "height")
||!strcmp(tag->key, "videodatarate")
||!strcmp(tag->key, "framerate")
||!strcmp(tag->key, "videocodecid")
||!strcmp(tag->key, "audiodatarate")
||!strcmp(tag->key, "audiosamplerate")
||!strcmp(tag->key, "audiosamplesize")
||!strcmp(tag->key, "stereo")
||!strcmp(tag->key, "audiocodecid")
||!strcmp(tag->key, "duration")
||!strcmp(tag->key, "onMetaData") |
58721388 |
||!strcmp(tag->key, "datasize")
||!strcmp(tag->key, "lasttimestamp")
||!strcmp(tag->key, "totalframes")
||!strcmp(tag->key, "hasAudio")
||!strcmp(tag->key, "hasVideo")
||!strcmp(tag->key, "hasCuePoints")
||!strcmp(tag->key, "hasMetadata")
||!strcmp(tag->key, "hasKeyframes") |
714517b2 |
){ |
da2ea7c3 |
av_log(s, AV_LOG_DEBUG, "Ignoring metadata for %s\n", tag->key); |
714517b2 |
continue;
} |
16f82508 |
put_amf_string(pb, tag->key); |
77eb5504 |
avio_w8(pb, AMF_DATA_TYPE_STRING); |
16f82508 |
put_amf_string(pb, tag->value); |
cad0c375 |
metadata_count++; |
16f82508 |
}
|
ee24c8ad |
if (write_duration_filesize) { |
5702416c |
put_amf_string(pb, "filesize");
flv->filesize_offset = avio_tell(pb);
put_amf_double(pb, 0); // delayed write
} |
fd0fb306 |
|
863ebe6f |
if (flv->flags & FLV_ADD_KEYFRAME_INDEX) {
flv->acurframeindex = 0;
flv->keyframe_index_size = 0;
put_amf_string(pb, "hasVideo");
put_amf_bool(pb, !!flv->video_par);
metadata_count++;
put_amf_string(pb, "hasKeyframes");
put_amf_bool(pb, 1);
metadata_count++;
put_amf_string(pb, "hasAudio");
put_amf_bool(pb, !!flv->audio_par);
metadata_count++;
put_amf_string(pb, "hasMetadata");
put_amf_bool(pb, 1);
metadata_count++;
put_amf_string(pb, "canSeekToEnd");
put_amf_bool(pb, 1);
metadata_count++;
put_amf_string(pb, "datasize");
flv->datasize_offset = avio_tell(pb);
flv->datasize = 0;
put_amf_double(pb, flv->datasize);
metadata_count++;
put_amf_string(pb, "videosize");
flv->videosize_offset = avio_tell(pb);
flv->videosize = 0;
put_amf_double(pb, flv->videosize);
metadata_count++;
put_amf_string(pb, "audiosize");
flv->audiosize_offset = avio_tell(pb);
flv->audiosize = 0;
put_amf_double(pb, flv->audiosize);
metadata_count++;
put_amf_string(pb, "lasttimestamp");
flv->lasttimestamp_offset = avio_tell(pb);
flv->lasttimestamp = 0;
put_amf_double(pb, 0);
metadata_count++;
put_amf_string(pb, "lastkeyframetimestamp");
flv->lastkeyframetimestamp_offset = avio_tell(pb);
flv->lastkeyframetimestamp = 0;
put_amf_double(pb, 0);
metadata_count++;
put_amf_string(pb, "lastkeyframelocation");
flv->lastkeyframelocation_offset = avio_tell(pb);
flv->lastkeyframelocation = 0;
put_amf_double(pb, 0);
metadata_count++;
put_amf_string(pb, "keyframes");
put_amf_byte(pb, AMF_DATA_TYPE_OBJECT);
metadata_count++;
flv->keyframes_info_offset = avio_tell(pb);
}
|
fd0fb306 |
put_amf_string(pb, ""); |
77eb5504 |
avio_w8(pb, AMF_END_OF_OBJECT); |
fd0fb306 |
/* write total size of tag */ |
863ebe6f |
flv->metadata_totalsize = avio_tell(pb) - flv->metadata_size_pos - 10; |
cad0c375 |
avio_seek(pb, metadata_count_pos, SEEK_SET);
avio_wb32(pb, metadata_count);
|
863ebe6f |
avio_seek(pb, flv->metadata_size_pos, SEEK_SET);
avio_wb24(pb, flv->metadata_totalsize);
avio_skip(pb, flv->metadata_totalsize + 10 - 3);
flv->metadata_totalsize_pos = avio_tell(pb);
avio_wb32(pb, flv->metadata_totalsize + 11); |
4d0cd5f5 |
}
|
e767c9e8 |
static int unsupported_codec(AVFormatContext *s,
const char* type, int codec_id)
{
const AVCodecDescriptor *desc = avcodec_descriptor_get(codec_id);
av_log(s, AV_LOG_ERROR,
"%s codec %s not compatible with flv\n",
type,
desc ? desc->name : "unknown");
return AVERROR(ENOSYS);
}
|
52985768 |
static void flv_write_codec_header(AVFormatContext* s, AVCodecParameters* par) {
int64_t data_size;
AVIOContext *pb = s->pb;
FLVContext *flv = s->priv_data;
if (par->codec_id == AV_CODEC_ID_AAC || par->codec_id == AV_CODEC_ID_H264
|| par->codec_id == AV_CODEC_ID_MPEG4) {
int64_t pos;
avio_w8(pb,
par->codec_type == AVMEDIA_TYPE_VIDEO ?
FLV_TAG_TYPE_VIDEO : FLV_TAG_TYPE_AUDIO);
avio_wb24(pb, 0); // size patched later
avio_wb24(pb, 0); // ts
avio_w8(pb, 0); // ts ext
avio_wb24(pb, 0); // streamid
pos = avio_tell(pb);
if (par->codec_id == AV_CODEC_ID_AAC) {
avio_w8(pb, get_audio_flags(s, par));
avio_w8(pb, 0); // AAC sequence header
|
e85c4a47 |
if (!par->extradata_size && (flv->flags & FLV_AAC_SEQ_HEADER_DETECT)) { |
52985768 |
PutBitContext pbc;
int samplerate_index;
int channels = flv->audio_par->channels
- (flv->audio_par->channels == 8 ? 1 : 0);
uint8_t data[2];
for (samplerate_index = 0; samplerate_index < 16;
samplerate_index++)
if (flv->audio_par->sample_rate
== mpeg4audio_sample_rates[samplerate_index])
break;
init_put_bits(&pbc, data, sizeof(data));
put_bits(&pbc, 5, flv->audio_par->profile + 1); //profile
put_bits(&pbc, 4, samplerate_index); //sample rate index
put_bits(&pbc, 4, channels);
put_bits(&pbc, 1, 0); //frame length - 1024 samples
put_bits(&pbc, 1, 0); //does not depend on core coder
put_bits(&pbc, 1, 0); //is not extension
flush_put_bits(&pbc);
avio_w8(pb, data[0]);
avio_w8(pb, data[1]);
av_log(s, AV_LOG_WARNING, "AAC sequence header: %02x %02x.\n",
data[0], data[1]);
}
avio_write(pb, par->extradata, par->extradata_size);
} else {
avio_w8(pb, par->codec_tag | FLV_FRAME_KEY); // flags
avio_w8(pb, 0); // AVC sequence header
avio_wb24(pb, 0); // composition time
ff_isom_write_avcc(pb, par->extradata, par->extradata_size);
}
data_size = avio_tell(pb) - pos;
avio_seek(pb, -data_size - 10, SEEK_CUR);
avio_wb24(pb, data_size);
avio_skip(pb, data_size + 10 - 3);
avio_wb32(pb, data_size + 11); // previous tag size
}
}
|
863ebe6f |
static int flv_append_keyframe_info(AVFormatContext *s, FLVContext *flv, double ts, int64_t pos)
{
FLVFileposition *position = av_malloc(sizeof(FLVFileposition));
if (!position) {
av_log(s, AV_LOG_WARNING, "no mem for add keyframe index!\n");
return AVERROR(ENOMEM);
}
position->keyframe_timestamp = ts;
position->keyframe_position = pos;
if (!flv->filepositions_count) {
flv->filepositions = position;
flv->head_filepositions = flv->filepositions;
position->next = NULL;
} else {
flv->filepositions->next = position;
position->next = NULL;
flv->filepositions = flv->filepositions->next;
}
flv->filepositions_count++;
return 0;
}
static int shift_data(AVFormatContext *s)
{
int ret = 0;
int n = 0;
int64_t metadata_size = 0;
FLVContext *flv = s->priv_data;
int64_t pos, pos_end = avio_tell(s->pb);
uint8_t *buf, *read_buf[2];
int read_buf_id = 0;
int read_size[2];
AVIOContext *read_pb;
metadata_size = flv->filepositions_count * 9 * 2 + 10; /* filepositions and times value */
metadata_size += 2 + 13; /* filepositions String */
metadata_size += 2 + 5; /* times String */
metadata_size += 3; /* Object end */
flv->keyframe_index_size = metadata_size;
if (metadata_size < 0)
return metadata_size;
buf = av_malloc_array(metadata_size, 2);
if (!buf) {
return AVERROR(ENOMEM);
}
read_buf[0] = buf;
read_buf[1] = buf + metadata_size;
avio_seek(s->pb, flv->metadata_size_pos, SEEK_SET);
avio_wb24(s->pb, flv->metadata_totalsize + metadata_size);
avio_seek(s->pb, flv->metadata_totalsize_pos, SEEK_SET);
avio_wb32(s->pb, flv->metadata_totalsize + 11 + metadata_size);
avio_seek(s->pb, pos_end, SEEK_SET);
/* Shift the data: the AVIO context of the output can only be used for
* writing, so we re-open the same output, but for reading. It also avoids
* a read/seek/write/seek back and forth. */
avio_flush(s->pb);
ret = s->io_open(s, &read_pb, s->filename, AVIO_FLAG_READ, NULL);
if (ret < 0) {
av_log(s, AV_LOG_ERROR, "Unable to re-open %s output file for "
"the second pass (add_keyframe_index)\n", s->filename);
goto end;
}
/* mark the end of the shift to up to the last data we wrote, and get ready
* for writing */
pos_end = avio_tell(s->pb);
avio_seek(s->pb, flv->keyframes_info_offset + metadata_size, SEEK_SET);
/* start reading at where the keyframe index information will be placed */
avio_seek(read_pb, flv->keyframes_info_offset, SEEK_SET);
pos = avio_tell(read_pb);
|
1bb192ef |
#define READ_BLOCK do { \ |
863ebe6f |
read_size[read_buf_id] = avio_read(read_pb, read_buf[read_buf_id], metadata_size); \ |
1bb192ef |
read_buf_id ^= 1; \
} while (0) |
863ebe6f |
|
1bb192ef |
/* shift data by chunk of at most keyframe *filepositions* and *times* size */
READ_BLOCK;
do {
READ_BLOCK; |
863ebe6f |
n = read_size[read_buf_id];
if (n < 0)
break;
avio_write(s->pb, read_buf[read_buf_id], n);
pos += n;
} while (pos <= pos_end);
ff_format_io_close(s, &read_pb);
end:
av_free(buf);
return ret;
}
|
4d0cd5f5 |
static int flv_write_header(AVFormatContext *s)
{
int i;
AVIOContext *pb = s->pb;
FLVContext *flv = s->priv_data;
for (i = 0; i < s->nb_streams; i++) { |
9200514a |
AVCodecParameters *par = s->streams[i]->codecpar; |
4d0cd5f5 |
FLVStreamContext *sc; |
9200514a |
switch (par->codec_type) { |
4d0cd5f5 |
case AVMEDIA_TYPE_VIDEO:
if (s->streams[i]->avg_frame_rate.den &&
s->streams[i]->avg_frame_rate.num) {
flv->framerate = av_q2d(s->streams[i]->avg_frame_rate);
} |
9200514a |
if (flv->video_par) { |
4d0cd5f5 |
av_log(s, AV_LOG_ERROR,
"at most one video stream is supported in flv\n");
return AVERROR(EINVAL);
} |
9200514a |
flv->video_par = par;
if (!ff_codec_get_tag(flv_video_codec_ids, par->codec_id))
return unsupported_codec(s, "Video", par->codec_id); |
735ab7c5 |
|
6f69f7a8 |
if (par->codec_id == AV_CODEC_ID_MPEG4 ||
par->codec_id == AV_CODEC_ID_H263) { |
bb7be3b7 |
int error = s->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL;
av_log(s, error ? AV_LOG_ERROR : AV_LOG_WARNING, |
6f69f7a8 |
"Codec %s is not supported in the official FLV specification,\n", avcodec_get_name(par->codec_id)); |
bb7be3b7 |
if (error) {
av_log(s, AV_LOG_ERROR,
"use vstrict=-1 / -strict -1 to use it anyway.\n");
return AVERROR(EINVAL);
} |
6f69f7a8 |
} else if (par->codec_id == AV_CODEC_ID_VP6) { |
78093cf8 |
av_log(s, AV_LOG_WARNING,
"Muxing VP6 in flv will produce flipped video on playback.\n"); |
4d0cd5f5 |
}
break;
case AVMEDIA_TYPE_AUDIO: |
9200514a |
if (flv->audio_par) { |
4d0cd5f5 |
av_log(s, AV_LOG_ERROR,
"at most one audio stream is supported in flv\n");
return AVERROR(EINVAL);
} |
9200514a |
flv->audio_par = par;
if (get_audio_flags(s, par) < 0)
return unsupported_codec(s, "Audio", par->codec_id); |
6f69f7a8 |
if (par->codec_id == AV_CODEC_ID_PCM_S16BE) |
bb7be3b7 |
av_log(s, AV_LOG_WARNING,
"16-bit big-endian audio in flv is valid but most likely unplayable (hardware dependent); use s16le\n"); |
4d0cd5f5 |
break;
case AVMEDIA_TYPE_DATA: |
6f69f7a8 |
if (par->codec_id != AV_CODEC_ID_TEXT && par->codec_id != AV_CODEC_ID_NONE) |
9200514a |
return unsupported_codec(s, "Data", par->codec_id);
flv->data_par = par; |
4d0cd5f5 |
break; |
b942a71e |
case AVMEDIA_TYPE_SUBTITLE: |
6f69f7a8 |
if (par->codec_id != AV_CODEC_ID_TEXT) { |
b942a71e |
av_log(s, AV_LOG_ERROR, "Subtitle codec '%s' for stream %d is not compatible with FLV\n", |
6f69f7a8 |
avcodec_get_name(par->codec_id), i); |
b942a71e |
return AVERROR_INVALIDDATA;
} |
6f69f7a8 |
flv->data_par = par; |
b942a71e |
break; |
4d0cd5f5 |
default: |
bb7be3b7 |
av_log(s, AV_LOG_ERROR, "Codec type '%s' for stream %d is not compatible with FLV\n", |
6f69f7a8 |
av_get_media_type_string(par->codec_type), i); |
bb7be3b7 |
return AVERROR(EINVAL); |
4d0cd5f5 |
}
avpriv_set_pts_info(s->streams[i], 32, 1, 1000); /* 32 bit pts in ms */
sc = av_mallocz(sizeof(FLVStreamContext));
if (!sc)
return AVERROR(ENOMEM);
s->streams[i]->priv_data = sc;
sc->last_ts = -1;
}
flv->delay = AV_NOPTS_VALUE;
avio_write(pb, "FLV", 3);
avio_w8(pb, 1); |
9200514a |
avio_w8(pb, FLV_HEADER_FLAG_HASAUDIO * !!flv->audio_par +
FLV_HEADER_FLAG_HASVIDEO * !!flv->video_par); |
4d0cd5f5 |
avio_wb32(pb, 9);
avio_wb32(pb, 0);
for (i = 0; i < s->nb_streams; i++) |
9200514a |
if (s->streams[i]->codecpar->codec_tag == 5) { |
4d0cd5f5 |
avio_w8(pb, 8); // message type
avio_wb24(pb, 0); // include flags
avio_wb24(pb, 0); // time stamp
avio_wb32(pb, 0); // reserved
avio_wb32(pb, 11); // size
flv->reserved = 5;
}
|
d316b21d |
if (flv->flags & FLV_NO_METADATA) {
pb->seekable = 0;
} else {
write_metadata(s, 0);
} |
fd0fb306 |
|
f23496b5 |
for (i = 0; i < s->nb_streams; i++) { |
52985768 |
flv_write_codec_header(s, s->streams[i]->codecpar); |
f23496b5 |
}
|
863ebe6f |
flv->datastart_offset = avio_tell(pb); |
d4f5d74a |
return 0;
}
static int flv_write_trailer(AVFormatContext *s)
{ |
14b32253 |
int64_t file_size; |
ae628ec1 |
AVIOContext *pb = s->pb; |
d4f5d74a |
FLVContext *flv = s->priv_data; |
863ebe6f |
int build_keyframes_idx = flv->flags & FLV_ADD_KEYFRAME_INDEX;
int i, res;
int64_t cur_pos = avio_tell(s->pb);
if (build_keyframes_idx) {
FLVFileposition *newflv_posinfo, *p;
avio_seek(pb, flv->videosize_offset, SEEK_SET);
put_amf_double(pb, flv->videosize);
avio_seek(pb, flv->audiosize_offset, SEEK_SET);
put_amf_double(pb, flv->audiosize);
avio_seek(pb, flv->lasttimestamp_offset, SEEK_SET);
put_amf_double(pb, flv->lasttimestamp);
avio_seek(pb, flv->lastkeyframetimestamp_offset, SEEK_SET);
put_amf_double(pb, flv->lastkeyframetimestamp); |
df4f1d51 |
|
863ebe6f |
avio_seek(pb, flv->lastkeyframelocation_offset, SEEK_SET);
put_amf_double(pb, flv->lastkeyframelocation + flv->keyframe_index_size);
avio_seek(pb, cur_pos, SEEK_SET);
res = shift_data(s);
if (res < 0) {
goto end;
}
avio_seek(pb, flv->keyframes_info_offset, SEEK_SET);
put_amf_string(pb, "filepositions");
put_amf_dword_array(pb, flv->filepositions_count);
for (newflv_posinfo = flv->head_filepositions; newflv_posinfo; newflv_posinfo = newflv_posinfo->next) {
put_amf_double(pb, newflv_posinfo->keyframe_position + flv->keyframe_index_size);
}
put_amf_string(pb, "times");
put_amf_dword_array(pb, flv->filepositions_count);
for (newflv_posinfo = flv->head_filepositions; newflv_posinfo; newflv_posinfo = newflv_posinfo->next) {
put_amf_double(pb, newflv_posinfo->keyframe_timestamp);
}
newflv_posinfo = flv->head_filepositions;
while (newflv_posinfo) {
p = newflv_posinfo->next;
if (p) {
newflv_posinfo->next = p->next;
av_free(p);
p = NULL;
} else {
av_free(newflv_posinfo);
newflv_posinfo = NULL;
}
}
put_amf_string(pb, "");
avio_w8(pb, AMF_END_OF_OBJECT);
avio_seek(pb, cur_pos + flv->keyframe_index_size, SEEK_SET);
}
end: |
c8528e54 |
if (flv->flags & FLV_NO_SEQUENCE_END) {
av_log(s, AV_LOG_DEBUG, "FLV no sequence end mode open\n");
} else {
/* Add EOS tag */
for (i = 0; i < s->nb_streams; i++) {
AVCodecParameters *par = s->streams[i]->codecpar;
FLVStreamContext *sc = s->streams[i]->priv_data;
if (par->codec_type == AVMEDIA_TYPE_VIDEO &&
(par->codec_id == AV_CODEC_ID_H264 || par->codec_id == AV_CODEC_ID_MPEG4))
put_avc_eos_tag(pb, sc->last_ts);
} |
df4f1d51 |
} |
d4f5d74a |
|
a2704c97 |
file_size = avio_tell(pb); |
634b8cfa |
|
863ebe6f |
if (build_keyframes_idx) {
flv->datasize = file_size - flv->datastart_offset;
avio_seek(pb, flv->datasize_offset, SEEK_SET);
put_amf_double(pb, flv->datasize);
} |
4e3cc4bd |
if (!(flv->flags & FLV_NO_METADATA)) {
if (!(flv->flags & FLV_NO_DURATION_FILESIZE)) {
/* update information */
if (avio_seek(pb, flv->duration_offset, SEEK_SET) < 0) {
av_log(s, AV_LOG_WARNING, "Failed to update header with correct duration.\n");
} else {
put_amf_double(pb, flv->duration / (double)1000);
}
if (avio_seek(pb, flv->filesize_offset, SEEK_SET) < 0) {
av_log(s, AV_LOG_WARNING, "Failed to update header with correct filesize.\n");
} else {
put_amf_double(pb, file_size);
} |
5702416c |
}
} |
4e3cc4bd |
|
d4f5d74a |
return 0;
}
|
e928649b |
static int flv_write_packet(AVFormatContext *s, AVPacket *pkt) |
d4f5d74a |
{ |
1cb34ea4 |
AVIOContext *pb = s->pb; |
9200514a |
AVCodecParameters *par = s->streams[pkt->stream_index]->codecpar; |
1cb34ea4 |
FLVContext *flv = s->priv_data; |
ef74e397 |
FLVStreamContext *sc = s->streams[pkt->stream_index]->priv_data; |
f23496b5 |
unsigned ts; |
1cb34ea4 |
int size = pkt->size;
uint8_t *data = NULL; |
1bd6b0c9 |
int flags = -1, flags_size, ret; |
863ebe6f |
int64_t cur_offset = avio_tell(pb); |
d4f5d74a |
|
9200514a |
if (par->codec_id == AV_CODEC_ID_VP6F || par->codec_id == AV_CODEC_ID_VP6A || |
6f69f7a8 |
par->codec_id == AV_CODEC_ID_VP6 || par->codec_id == AV_CODEC_ID_AAC) |
1cb34ea4 |
flags_size = 2; |
6f69f7a8 |
else if (par->codec_id == AV_CODEC_ID_H264 || par->codec_id == AV_CODEC_ID_MPEG4) |
1cb34ea4 |
flags_size = 5; |
f683dbdc |
else |
1cb34ea4 |
flags_size = 1; |
f683dbdc |
|
c1f57e2f |
if (par->codec_id == AV_CODEC_ID_AAC || par->codec_id == AV_CODEC_ID_H264
|| par->codec_id == AV_CODEC_ID_MPEG4) {
int side_size = 0;
uint8_t *side = av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, &side_size);
if (side && side_size > 0 && (side_size != par->extradata_size || memcmp(side, par->extradata, side_size))) {
av_free(par->extradata);
par->extradata = av_mallocz(side_size + AV_INPUT_BUFFER_PADDING_SIZE); |
4221c68e |
if (!par->extradata) {
par->extradata_size = 0;
return AVERROR(ENOMEM);
} |
c1f57e2f |
memcpy(par->extradata, side, side_size);
par->extradata_size = side_size;
flv_write_codec_header(s, par);
}
}
|
c64f3615 |
if (flv->delay == AV_NOPTS_VALUE)
flv->delay = -pkt->dts;
if (pkt->dts < -flv->delay) {
av_log(s, AV_LOG_WARNING,
"Packets are not in the proper order with respect to DTS\n");
return AVERROR(EINVAL);
}
|
a0174f67 |
ts = pkt->dts; |
c64f3615 |
if (s->event_flags & AVSTREAM_EVENT_FLAG_METADATA_UPDATED) {
write_metadata(s, ts);
s->event_flags &= ~AVSTREAM_EVENT_FLAG_METADATA_UPDATED;
}
|
371df9ba |
avio_write_marker(pb, av_rescale(ts, AV_TIME_BASE, 1000),
pkt->flags & AV_PKT_FLAG_KEY && (flv->video_par ? par->codec_type == AVMEDIA_TYPE_VIDEO : 1) ? AVIO_DATA_MARKER_SYNC_POINT : AVIO_DATA_MARKER_BOUNDARY_POINT);
|
9200514a |
switch (par->codec_type) { |
21e2dc9f |
case AVMEDIA_TYPE_VIDEO: |
77eb5504 |
avio_w8(pb, FLV_TAG_TYPE_VIDEO); |
09d8c0ae |
|
9200514a |
flags = ff_codec_get_tag(flv_video_codec_ids, par->codec_id); |
09d8c0ae |
|
cc947f04 |
flags |= pkt->flags & AV_PKT_FLAG_KEY ? FLV_FRAME_KEY : FLV_FRAME_INTER; |
21e2dc9f |
break;
case AVMEDIA_TYPE_AUDIO: |
9200514a |
flags = get_audio_flags(s, par); |
115329f1 |
|
d9a9518f |
av_assert0(size); |
068f2a22 |
|
77eb5504 |
avio_w8(pb, FLV_TAG_TYPE_AUDIO); |
21e2dc9f |
break; |
b942a71e |
case AVMEDIA_TYPE_SUBTITLE: |
21e2dc9f |
case AVMEDIA_TYPE_DATA: |
4ee53d7e |
avio_w8(pb, FLV_TAG_TYPE_META); |
21e2dc9f |
break;
default:
return AVERROR(EINVAL); |
75293f05 |
} |
1cb34ea4 |
|
6f69f7a8 |
if (par->codec_id == AV_CODEC_ID_H264 || par->codec_id == AV_CODEC_ID_MPEG4) { |
ed0b1db6 |
/* check if extradata looks like mp4 formatted */ |
9200514a |
if (par->extradata_size > 0 && *(uint8_t*)par->extradata != 1) |
1bd6b0c9 |
if ((ret = ff_avc_parse_nal_units_buf(pkt->data, &data, &size)) < 0)
return ret; |
6f69f7a8 |
} else if (par->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 && |
b0a0e83a |
(AV_RB16(pkt->data) & 0xfff0) == 0xfff0) { |
1741fece |
if (!s->streams[pkt->stream_index]->nb_frames) { |
da2ea7c3 |
av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: " |
66d02d3c |
"use the audio bitstream filter 'aac_adtstoasc' to fix it " |
da2ea7c3 |
"('-bsf:a aac_adtstoasc' option with ffmpeg)\n"); |
1bd6b0c9 |
return AVERROR_INVALIDDATA; |
1741fece |
}
av_log(s, AV_LOG_WARNING, "aac bitstream error\n"); |
f23496b5 |
} |
1cb34ea4 |
|
4ee247a2 |
/* check Speex packet duration */ |
9200514a |
if (par->codec_id == AV_CODEC_ID_SPEEX && ts - sc->last_ts > 160) |
4ee247a2 |
av_log(s, AV_LOG_WARNING, "Warning: Speex stream has more than "
"8 frames per packet. Adobe Flash "
"Player cannot handle this!\n");
|
ef74e397 |
if (sc->last_ts < ts)
sc->last_ts = ts; |
4ee247a2 |
|
f0158e6f |
if (size + flags_size >= 1<<24) {
av_log(s, AV_LOG_ERROR, "Too large packet with size %u >= %u\n",
size + flags_size, 1<<24);
return AVERROR(EINVAL);
}
|
1cb34ea4 |
avio_wb24(pb, size + flags_size); |
2e532aa8 |
avio_wb24(pb, ts & 0xFFFFFF); |
1cb34ea4 |
avio_w8(pb, (ts >> 24) & 0x7F); // timestamps are 32 bits _signed_
avio_wb24(pb, flv->reserved); |
4ee53d7e |
|
6f69f7a8 |
if (par->codec_type == AVMEDIA_TYPE_DATA ||
par->codec_type == AVMEDIA_TYPE_SUBTITLE ) { |
21e2dc9f |
int data_size; |
f412b2c9 |
int64_t metadata_size_pos = avio_tell(pb); |
6f69f7a8 |
if (par->codec_id == AV_CODEC_ID_TEXT) { |
07de0db7 |
// legacy FFmpeg magic?
avio_w8(pb, AMF_DATA_TYPE_STRING);
put_amf_string(pb, "onTextData");
avio_w8(pb, AMF_DATA_TYPE_MIXEDARRAY);
avio_wb32(pb, 2);
put_amf_string(pb, "type");
avio_w8(pb, AMF_DATA_TYPE_STRING);
put_amf_string(pb, "Text");
put_amf_string(pb, "text");
avio_w8(pb, AMF_DATA_TYPE_STRING);
put_amf_string(pb, pkt->data);
put_amf_string(pb, "");
avio_w8(pb, AMF_END_OF_OBJECT);
} else {
// just pass the metadata through
avio_write(pb, data ? data : pkt->data, size);
} |
21e2dc9f |
/* write total size of tag */
data_size = avio_tell(pb) - metadata_size_pos;
avio_seek(pb, metadata_size_pos - 10, SEEK_SET);
avio_wb24(pb, data_size);
avio_seek(pb, data_size + 10 - 3, SEEK_CUR);
avio_wb32(pb, data_size + 11);
} else { |
5e363bb9 |
av_assert1(flags>=0); |
1cb34ea4 |
avio_w8(pb,flags); |
6f69f7a8 |
if (par->codec_id == AV_CODEC_ID_VP6) |
b8667bcc |
avio_w8(pb,0); |
9200514a |
if (par->codec_id == AV_CODEC_ID_VP6F || par->codec_id == AV_CODEC_ID_VP6A) {
if (par->extradata_size)
avio_w8(pb, par->extradata[0]); |
e6ed8668 |
else |
9200514a |
avio_w8(pb, ((FFALIGN(par->width, 16) - par->width) << 4) |
(FFALIGN(par->height, 16) - par->height));
} else if (par->codec_id == AV_CODEC_ID_AAC) |
1cb34ea4 |
avio_w8(pb, 1); // AAC raw |
6f69f7a8 |
else if (par->codec_id == AV_CODEC_ID_H264 || par->codec_id == AV_CODEC_ID_MPEG4) { |
1cb34ea4 |
avio_w8(pb, 1); // AVC NALU
avio_wb24(pb, pkt->pts - pkt->dts);
} |
71e685b0 |
|
1cb34ea4 |
avio_write(pb, data ? data : pkt->data, size); |
71e685b0 |
|
1cb34ea4 |
avio_wb32(pb, size + flags_size + 11); // previous tag size
flv->duration = FFMAX(flv->duration,
pkt->pts + flv->delay + pkt->duration); |
21e2dc9f |
} |
71e685b0 |
|
863ebe6f |
if (flv->flags & FLV_ADD_KEYFRAME_INDEX) {
switch (par->codec_type) {
case AVMEDIA_TYPE_VIDEO:
flv->videosize += (avio_tell(pb) - cur_offset);
flv->lasttimestamp = flv->acurframeindex / flv->framerate;
if (pkt->flags & AV_PKT_FLAG_KEY) {
double ts = flv->acurframeindex / flv->framerate;
int64_t pos = cur_offset;
flv->lastkeyframetimestamp = flv->acurframeindex / flv->framerate;
flv->lastkeyframelocation = pos;
flv_append_keyframe_info(s, flv, ts, pos);
}
flv->acurframeindex++;
break;
case AVMEDIA_TYPE_AUDIO:
flv->audiosize += (avio_tell(pb) - cur_offset);
break;
default:
av_log(s, AV_LOG_WARNING, "par->codec_type is type = [%d]\n", par->codec_type);
break;
}
}
|
71e685b0 |
av_free(data);
|
0e28e9ca |
return pb->error; |
d4f5d74a |
}
|
acb430e4 |
static const AVOption options[] = {
{ "flvflags", "FLV muxer flags", offsetof(FLVContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" }, |
84aebfc7 |
{ "aac_seq_header_detect", "Put AAC sequence header based on stream data", 0, AV_OPT_TYPE_CONST, {.i64 = FLV_AAC_SEQ_HEADER_DETECT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" }, |
c8528e54 |
{ "no_sequence_end", "disable sequence end for FLV", 0, AV_OPT_TYPE_CONST, {.i64 = FLV_NO_SEQUENCE_END}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" }, |
d316b21d |
{ "no_metadata", "disable metadata for FLV", 0, AV_OPT_TYPE_CONST, {.i64 = FLV_NO_METADATA}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" }, |
ee24c8ad |
{ "no_duration_filesize", "disable duration and filesize zero value metadata for FLV", 0, AV_OPT_TYPE_CONST, {.i64 = FLV_NO_DURATION_FILESIZE}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" }, |
863ebe6f |
{ "add_keyframe_index", "Add keyframe index metadata", 0, AV_OPT_TYPE_CONST, {.i64 = FLV_ADD_KEYFRAME_INDEX}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "flvflags" }, |
acb430e4 |
{ NULL },
};
static const AVClass flv_muxer_class = {
.class_name = "flv muxer",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
|
c6610a21 |
AVOutputFormat ff_flv_muxer = { |
dfc2c4d9 |
.name = "flv", |
0177b7d2 |
.long_name = NULL_IF_CONFIG_SMALL("FLV (Flash Video)"), |
dfc2c4d9 |
.mime_type = "video/x-flv",
.extensions = "flv",
.priv_data_size = sizeof(FLVContext), |
36ef5369 |
.audio_codec = CONFIG_LIBMP3LAME ? AV_CODEC_ID_MP3 : AV_CODEC_ID_ADPCM_SWF,
.video_codec = AV_CODEC_ID_FLV1, |
dfc2c4d9 |
.write_header = flv_write_header,
.write_packet = flv_write_packet,
.write_trailer = flv_write_trailer, |
1cb34ea4 |
.codec_tag = (const AVCodecTag* const []) {
flv_video_codec_ids, flv_audio_codec_ids, 0
}, |
e9cef897 |
.flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS |
AVFMT_TS_NONSTRICT, |
acb430e4 |
.priv_class = &flv_muxer_class, |
d4f5d74a |
}; |