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Code Issues Releases Activity

flv fixes

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Originally committed as revision 2863 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2004-03-09 20:14:34 +00:00
parent c7516a000c
commit 92a267756f
2 changed files with 21 additions and 12 deletions
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3
libavformat/flvdec.c
View File

@ -57,6 +57,8 @@ static int flv_read_header(AVFormatContext *s,
return AVERROR_NOMEM;
st->codec.codec_type = CODEC_TYPE_VIDEO;
st->codec.codec_id = CODEC_ID_FLV1;
st->codec.frame_rate= ap->frame_rate;
st->codec.frame_rate_base= ap->frame_rate_base;
}
if ((flags & 4)) {
@ -83,6 +85,7 @@ static int flv_read_packet(AVFormatContext *s, AVPacket *pkt)
type = get_byte(&s->pb);
size = get_be24(&s->pb);
pts = get_be24(&s->pb);
// av_log(s, AV_LOG_DEBUG, "type:%d, size:%d, pts:%d\n", type, size, pts);
if (url_feof(&s->pb))
return -EIO;
url_fskip(&s->pb, 4); /* reserved */

30
libavformat/flvenc.c
View File

@ -37,7 +37,7 @@ typedef struct FLVContext {
int audioInPos;
int audioOutPos;
int audioSize;
int audioRate;
// int audioRate;
int initDelay;
int soundDelay;
uint8_t *audioFifo;
@ -98,31 +98,32 @@ static int mp3info(void *data, int *byteSize, int *samplesPerFrame, int *sampleR
}
if ( !isPadded ) {
printf("Fatal error: mp3 data is not padded!\n");
exit(0);
// printf("Fatal error: mp3 data is not padded!\n");
// exit(0);
}
*isMono = ((header >> 6) & 0x03) == 0x03;
if ( (header >> 19 ) & 0x01 ) {
//MPEG1
*sampleRate = sSampleRates[0][sampleRateID];
bitRate = sBitRates[0][layerID][bitRateID] * 1000;
*samplesPerFrame = sSamplesPerFrame[0][layerID];
} else {
if ( (header >> 20) & 0x01 ) {
//MPEG2
*sampleRate = sSampleRates[1][sampleRateID];
bitRate = sBitRates[1][layerID][bitRateID] * 1000;
*samplesPerFrame = sSamplesPerFrame[1][layerID];
} else {
//MPEG2.5
*sampleRate = sSampleRates[2][sampleRateID];
bitRate = sBitRates[1][layerID][bitRateID] * 1000;
*samplesPerFrame = sSamplesPerFrame[2][layerID];
}
}
*byteSize = ( ( ( ( *samplesPerFrame * (bitRate / bitsPerSlot) ) / *sampleRate ) + isPadded ) );
return 1;
}
#endif // CONFIG_MP3LAME
@ -143,7 +144,7 @@ static int flv_write_header(AVFormatContext *s)
flv->audioInPos = 0;
flv->audioOutPos = 0;
flv->audioSize = 0;
flv->audioRate = 44100;
// flv->audioRate = 44100;
flv->initDelay = -1;
flv->soundDelay = 0;
#endif // CONFIG_MP3LAME
@ -270,6 +271,7 @@ static int flv_write_packet(AVFormatContext *s, int stream_index,
#ifdef CONFIG_MP3LAME
if (enc->codec_id == CODEC_ID_MP3 ) {
int c=0;
for (;c<size;c++) {
flv->audioFifo[(flv->audioOutPos+c)%AUDIO_FIFO_SIZE] = buf[c];
}
@ -281,13 +283,13 @@ static int flv_write_packet(AVFormatContext *s, int stream_index,
flv->initDelay = timestamp;
}
if ( flv->audioTime == -1 ) {
// if ( flv->audioTime == -1 ) {
flv->audioTime = timestamp;
// flv->audioTime = ( ( ( flv->sampleCount - enc->delay ) * 8000 ) / flv->audioRate ) - flv->initDelay - 250;
// if ( flv->audioTime < 0 ) {
// flv->audioTime = 0;
// }
}
// }
}
for ( ; flv->audioSize >= 4 ; ) {
@ -310,7 +312,7 @@ static int flv_write_packet(AVFormatContext *s, int stream_index,
int c=0;
FLVFrame *frame = av_malloc(sizeof(FLVFrame));
flv->audioRate = mp3SampleRate;
// flv->audioRate = mp3SampleRate;
switch (mp3SampleRate) {
case 44100:
@ -332,6 +334,7 @@ static int flv_write_packet(AVFormatContext *s, int stream_index,
frame->type = 8;
frame->flags = soundFormat;
frame->timestamp = flv->audioTime;
frame->timestamp = (1000*flv->sampleCount + mp3SampleRate/2)/(mp3SampleRate);
frame->size = mp3FrameSize;
frame->data = av_malloc(mp3FrameSize);
@ -344,15 +347,18 @@ static int flv_write_packet(AVFormatContext *s, int stream_index,
flv->audioInPos %= AUDIO_FIFO_SIZE;
flv->sampleCount += mp3SamplesPerFrame;
// Reset audio for next round
flv->audioTime = -1;
flv->audioTime += 1000*mp3SamplesPerFrame/mp3SampleRate;
// We got audio! Make sure we set this to the global flags on closure
flv->hasAudio = 1;
InsertSorted(flv,frame);
// av_log(NULL,AV_LOG_DEBUG, "insert sound\n");
continue;
}
// av_log(NULL,AV_LOG_DEBUG, "insuficent data\n");
break;
}
av_log(NULL,AV_LOG_DEBUG, "head trashed\n");
flv->audioInPos ++;
flv->audioSize --;
flv->audioInPos %= AUDIO_FIFO_SIZE;