#undef NDEBUG
#include <assert.h>
-#define VIDEO_FIFO_SIZE 512
-
-typedef struct FLVFrame {
- int type;
- int timestamp;
- int reserved;
- int flags;
- uint8_t *data;
- int size;
- struct FLVFrame *next;
-} FLVFrame;
-
typedef struct FLVContext {
int hasAudio;
int hasVideo;
- int initDelay;
- int64_t sampleCount;
- int64_t frameCount;
int reserved;
- FLVFrame *frames;
} FLVContext;
-#ifdef CONFIG_MP3LAME
-
-static const int sSampleRates[3][4] = {
- {44100, 48000, 32000, 0},
- {22050, 24000, 16000, 0},
- {11025, 12000, 8000, 0},
-};
-
-static const int sBitRates[2][3][15] = {
- { { 0, 32, 64, 96,128,160,192,224,256,288,320,352,384,416,448},
- { 0, 32, 48, 56, 64, 80, 96,112,128,160,192,224,256,320,384},
- { 0, 32, 40, 48, 56, 64, 80, 96,112,128,160,192,224,256,320}
- },
- { { 0, 32, 48, 56, 64, 80, 96,112,128,144,160,176,192,224,256},
- { 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96,112,128,144,160},
- { 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96,112,128,144,160}
- },
-};
-
-static const int sSamplesPerFrame[3][3] =
-{
- { 384, 1152, 1152 },
- { 384, 1152, 576 },
- { 384, 1152, 576 }
-};
-
-static const int sBitsPerSlot[3] = {
- 32,
- 8,
- 8
-};
-
-static int mp3info(void *data, int *byteSize, int *samplesPerFrame, int *sampleRate, int *isMono )
-{
- uint8_t *dataTmp = (uint8_t *)data;
- uint32_t header = ( (uint32_t)dataTmp[0] << 24 ) | ( (uint32_t)dataTmp[1] << 16 ) | ( (uint32_t)dataTmp[2] << 8 ) | (uint32_t)dataTmp[3];
- int layerID = 3 - ((header >> 17) & 0x03);
- int bitRateID = ((header >> 12) & 0x0f);
- int sampleRateID = ((header >> 10) & 0x03);
- int bitRate = 0;
- int bitsPerSlot = sBitsPerSlot[layerID];
- int isPadded = ((header >> 9) & 0x01);
-
- if ( (( header >> 21 ) & 0x7ff) != 0x7ff ) {
- return 0;
- }
-
- if ( !isPadded ) {
-// 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
-
static void put_be24(ByteIOContext *pb, int value)
{
put_byte(pb, (value>>16) & 0xFF );
flv->hasAudio = 0;
flv->hasVideo = 0;
- flv->initDelay = -1;
-
- flv->frames = 0;
-
put_tag(pb,"FLV");
put_byte(pb,1);
put_byte(pb,0); // delayed write
return 0;
}
-static void InsertSorted(FLVContext *flv, FLVFrame *frame)
-{
- if ( !flv->frames ) {
- flv->frames = frame;
- } else {
- FLVFrame *trav = flv->frames;
- FLVFrame *prev = 0;
- for (;trav;) {
- if ( trav->timestamp > frame->timestamp) {
- frame->next = trav;
- if ( prev ) {
- prev->next = frame;
- } else {
- flv->frames = frame;
- }
- break;
- }
- prev = trav;
- trav = trav->next;
- }
- if ( !trav ) {
- prev->next = frame;
- }
- }
-}
-
-static void DumpFrame(ByteIOContext *pb, FLVFrame *frame)
-{
-//av_log(NULL, AV_LOG_DEBUG, "T%02X S%d T%d R%d F%02X ... R%08X\n", frame->type, frame->size+1, frame->timestamp, 0, frame->flags, frame->size+1+11);
- put_byte(pb,frame->type); // message type
- put_be24(pb,frame->size+1); // include flags
- put_be24(pb,frame->timestamp); // time stamp
- put_be32(pb,frame->reserved); // reserved
- put_byte(pb,frame->flags);
- put_buffer(pb, frame->data, frame->size);
- put_be32(pb,frame->size+1+11); // reserved
- av_free(frame->data);
-}
-
-static void Dump(FLVContext *flv, ByteIOContext *pb, int count)
-{
- int c=0;
- FLVFrame *trav = flv->frames;
- FLVFrame *prev = 0;
- for (;trav;c++) {
- trav = trav->next;
- }
- trav = flv->frames;
- for ( ; c >= count; c-- ) {
- DumpFrame(pb,trav);
- prev = trav;
- trav = trav->next;
- av_free(prev);
- }
- flv->frames = trav;
-}
-
static int flv_write_trailer(AVFormatContext *s)
{
int64_t file_size;
ByteIOContext *pb = &s->pb;
FLVContext *flv = s->priv_data;
- Dump(flv,pb,1);
-
file_size = url_ftell(pb);
flags |= flv->hasAudio ? 4 : 0;
flags |= flv->hasVideo ? 1 : 0;
ByteIOContext *pb = &s->pb;
AVCodecContext *enc = &s->streams[pkt->stream_index]->codec;
FLVContext *flv = s->priv_data;
- FLVFrame *frame = av_malloc(sizeof(FLVFrame));
int size= pkt->size;
- uint8_t *buf= pkt->data;
+ int flags;
- frame->next = 0;
- frame->size = size;
- frame->data = av_malloc(size);
- frame->timestamp = pkt->pts;
- frame->reserved= flv->reserved;
- memcpy(frame->data,buf,size);
-
// av_log(s, AV_LOG_DEBUG, "type:%d pts: %lld size:%d\n", enc->codec_type, timestamp, size);
if (enc->codec_type == CODEC_TYPE_VIDEO) {
- frame->type = 9;
- frame->flags = 2; // choose h263
- frame->flags |= pkt->flags & PKT_FLAG_KEY ? 0x10 : 0x20; // add keyframe indicator
- //frame->timestamp = ( ( flv->frameCount * (int64_t)FRAME_RATE_BASE * (int64_t)1000 ) / (int64_t)enc->frame_rate );
- //printf("%08x %f %f\n",frame->timestamp,(double)enc->frame_rate/(double)FRAME_RATE_BASE,1000*(double)FRAME_RATE_BASE/(double)enc->frame_rate);
+ put_byte(pb, 9);
+ flags = 2; // choose h263
+ flags |= pkt->flags & PKT_FLAG_KEY ? 0x10 : 0x20; // add keyframe indicator
flv->hasVideo = 1;
-
- InsertSorted(flv,frame);
-
- flv->frameCount ++;
- }
- else if (enc->codec_type == CODEC_TYPE_AUDIO) {
- int soundFormat = 0x02;
+ } else {
+ assert(enc->codec_type == CODEC_TYPE_AUDIO);
+ flags = 0x02;
switch (enc->sample_rate) {
case 44100:
- soundFormat |= 0x0C;
+ flags |= 0x0C;
break;
case 22050:
- soundFormat |= 0x08;
+ flags |= 0x08;
break;
case 11025:
- soundFormat |= 0x04;
+ flags |= 0x04;
break;
case 8000: //nellymoser only
case 5512: //not mp3
- soundFormat |= 0x00;
+ flags |= 0x00;
break;
default:
assert(0);
}
if (enc->channels > 1) {
- soundFormat |= 0x01;
+ flags |= 0x01;
}
switch(enc->codec_id){
case CODEC_ID_MP3:
- soundFormat |= 0x20;
+ flags |= 0x20;
break;
case 0:
- soundFormat |= enc->codec_tag<<4;
+ flags |= enc->codec_tag<<4;
break;
default:
assert(0);
}
assert(size);
- if ( flv->initDelay == -1 ) {
- flv->initDelay = pkt->pts;
- }
-
- frame->type = 8;
- frame->flags = soundFormat;
-
-// if ( flv->audioTime == -1 ) {
-// flv->audioTime = ( ( ( flv->sampleCount - enc->delay ) * 8000 ) / flv->audioRate ) - flv->initDelay - 250;
-// if ( flv->audioTime < 0 ) {
-// flv->audioTime = 0;
-// }
-// }
-
-#ifdef CONFIG_MP3LAME
- if (enc->codec_id == CODEC_ID_MP3 ) {
- int mp3FrameSize = 0;
- int mp3SampleRate = 0;
- int mp3IsMono = 0;
- int mp3SamplesPerFrame = 0;
-
- /* copy out mp3 header from ring buffer */
- if(!mp3info(buf,&mp3FrameSize,&mp3SamplesPerFrame,&mp3SampleRate,&mp3IsMono))
- assert(0);
- assert ( size == mp3FrameSize );
- assert(enc->sample_rate == mp3SampleRate);
-// assert(enc->frame_size == mp3SamplesPerFrame);
-//av_log(NULL, AV_LOG_DEBUG, "sizes: %d %d\n", enc->frame_size, mp3SamplesPerFrame);
- frame->timestamp = (1000*flv->sampleCount + enc->sample_rate/2)/(enc->sample_rate);
- flv->sampleCount += mp3SamplesPerFrame;
- }
-#endif
+ put_byte(pb, 8);
// We got audio! Make sure we set this to the global flags on closure
flv->hasAudio = 1;
- InsertSorted(flv,frame);
- }else
- assert(0);
- Dump(flv,pb,128);
+ }
+
+ put_be24(pb,size+1); // include flags
+ put_be24(pb,pkt->pts);
+ put_be32(pb,flv->reserved);
+ put_byte(pb,flags);
+ put_buffer(pb, pkt->data, size);
+ put_be32(pb,size+1+11); // reserved
+
put_flush_packet(pb);
return 0;
}