void ds_read_packet(demux_stream_t *ds, stream_t *stream, int len,
double pts, off_t pos, bool keyframe)
{
demux_packet_t *dp = new_demux_packet(len);
len = stream_read(stream, dp->buffer, len);
resize_demux_packet(dp, len);
dp->pts = pts;
dp->pos = pos;
dp->keyframe = keyframe;
// append packet to DS stream:
ds_add_packet(ds, dp);
}
static int demux_vqf_fill_buffer(demuxer_t* demuxer, demux_stream_t *ds) {
sh_audio_t* sh_audio = demuxer->audio->sh;
int l = sh_audio->wf->nAvgBytesPerSec;
loff_t spos = stream_tell(demuxer->stream);
demux_packet_t* dp;
if(stream_eof(demuxer->stream))
return 0;
dp = new_demux_packet(l);
ds->pts = spos / (float)(sh_audio->wf->nAvgBytesPerSec);
ds->pos = spos;
l=stream_read(demuxer->stream,dp->buffer,l);
resize_demux_packet(dp,l);
ds_add_packet(ds,dp);
return 1;
}
static int demux_rawaudio_fill_buffer(demuxer_t* demuxer, demux_stream_t *ds) {
sh_audio_t* sh_audio = demuxer->audio->sh;
int l = sh_audio->wf->nAvgBytesPerSec;
int64_t spos = stream_tell(demuxer->stream);
demux_packet_t* dp;
if(demuxer->stream->eof)
return 0;
dp = new_demux_packet(l);
dp->pts = (spos - demuxer->movi_start) / (float)(sh_audio->wf->nAvgBytesPerSec);
dp->pos = (spos - demuxer->movi_start);
l = stream_read(demuxer->stream,dp->buffer,l);
resize_demux_packet(dp, l);
ds_add_packet(ds,dp);
return 1;
}
static void afterReading(void* clientData, unsigned frameSize,
unsigned /*numTruncatedBytes*/,
struct timeval presentationTime,
unsigned /*durationInMicroseconds*/) {
int headersize = 0;
if (frameSize >= MAX_RTP_FRAME_SIZE) {
fprintf(stderr, "Saw an input frame too large (>=%d). Increase MAX_RTP_FRAME_SIZE in \"demux_rtp.cpp\".\n",
MAX_RTP_FRAME_SIZE);
}
ReadBufferQueue* bufferQueue = (ReadBufferQueue*)clientData;
demuxer_t* demuxer = bufferQueue->ourDemuxer();
RTPState* rtpState = (RTPState*)(demuxer->priv);
if (frameSize > 0) demuxer->stream->eof = 0;
demux_packet_t* dp = bufferQueue->dp;
if (bufferQueue->readSource()->isAMRAudioSource())
headersize = 1;
else if (bufferQueue == rtpState->videoBufferQueue &&
((sh_video_t*)demuxer->video->sh)->format == mmioFOURCC('H','2','6','4')) {
dp->buffer[0]=0x00;
dp->buffer[1]=0x00;
dp->buffer[2]=0x01;
headersize = 3;
}
resize_demux_packet(dp, frameSize + headersize);
// Set the packet's presentation time stamp, depending on whether or
// not our RTP source's timestamps have been synchronized yet:
Boolean hasBeenSynchronized
= bufferQueue->rtpSource()->hasBeenSynchronizedUsingRTCP();
if (hasBeenSynchronized) {
if (verbose > 0 && !bufferQueue->prevPacketWasSynchronized) {
fprintf(stderr, "%s stream has been synchronized using RTCP \n",
bufferQueue->tag());
}
struct timeval* fst = &(rtpState->firstSyncTime); // abbrev
if (fst->tv_sec == 0 && fst->tv_usec == 0) {
*fst = presentationTime;
}
// For the "pts" field, use the time differential from the first
// synchronized time, rather than absolute time, in order to avoid
// round-off errors when converting to a float:
dp->pts = presentationTime.tv_sec - fst->tv_sec
+ (presentationTime.tv_usec - fst->tv_usec)/1000000.0;
bufferQueue->prevPacketPTS = dp->pts;
} else {
if (verbose > 0 && bufferQueue->prevPacketWasSynchronized) {
fprintf(stderr, "%s stream is no longer RTCP-synchronized \n",
bufferQueue->tag());
}
// use the previous packet's "pts" once again:
dp->pts = bufferQueue->prevPacketPTS;
}
bufferQueue->prevPacketWasSynchronized = hasBeenSynchronized;
dp->pos = demuxer->filepos;
demuxer->filepos += frameSize + headersize;
// Signal any pending 'doEventLoop()' call on this queue:
bufferQueue->blockingFlag = ~0;
}
