void OGGDecoder::reader()
{
float **pcm;
long ret=1;
int bit;
size_t j,done=0;
while (ATOMIC_CAS(&owner->work,true,true) && ret > 0 ){
j=0;
ret=1;
done=0;
while (done<VPBUFFER_FRAMES && ret > 0){
ret = ov_read_float( &vf, &pcm, VPBUFFER_FRAMES - done,&bit );
for (long i=0;i<ret;i++){
for (size_t ch=0;ch<bout->chans;ch++){
buffer[j]=pcm[ch][i];
j++;
}
}
done+=ret;
}
memcpy(bout->buffer[*bout->cursor], buffer, VPBUFFER_FRAMES*bout->chans*sizeof(float) );
owner->postProcess(bout->buffer[*bout->cursor]);
owner->mutex[0].lock();
VP_SWAP_BUFFERS(bout);
owner->mutex[1].unlock();
}
}
void OGGDecoder::reader()
{
float **pcm;
long ret=1;
int bit;
size_t j,done=0;
while (ATOMIC_CAS(&owner->work,true,true) && ret > 0 ){
j=0;
ret=1;
done=0;
if (ATOMIC_CAS(&seek_to,SEEK_MAX,SEEK_MAX) != SEEK_MAX ){
if (ov_seekable(&vf))
ov_pcm_seek(&vf,(ogg_int64_t) seek_to);
seek_to = SEEK_MAX;
}
while (done<VPBUFFER_FRAMES && ret > 0){
ret = ov_read_float( &vf, &pcm, VPBUFFER_FRAMES - done,&bit );
for (long i=0;i<ret;i++){
for (size_t ch=0;ch<bout->chans;ch++){
buffer[j]=(float)pcm[ch][i];
j++;
}
}
done+=ret;
}
int samples= done*bout->chans;
memcpy(bout->currentBuffer(), buffer,samples*sizeof(float) );
for (int i=samples;i<VPBUFFER_FRAMES*bout->chans;i++){
bout->currentBuffer()[i]=0.0f;
}
owner->postProcess();
owner->mutex[0].lock();
VP_SWAP_BUFFERS(bout);
owner->mutex[1].unlock();
}
}
void FFMPEGDecoder::reader()
{
int frameFinished=0,packetFinished=0;
int plane_size;
int vpbuffer_write=0;
int vpbuffer_samples=(VPBUFFER_FRAMES)*bout->chans;
int remainder_write=0;
int remainder_read=0;
av_init_packet(&packet);
AVFrame *frame=avcodec_alloc_frame();
current_in_seconds=0;
while (ATOMIC_CAS(&owner->work,true,true) && packetFinished >=0) {
vpbuffer_write=0;
if (remainder_write>0) {
remainder_read = 0;
for (int nn=0;nn<remainder_write / vpbuffer_samples; nn++) {
vpbuffer_write=0;
while (vpbuffer_write < vpbuffer_samples){
bout->buffer[*bout->cursor][vpbuffer_write]=remainder[remainder_read];
remainder_read++;
vpbuffer_write++;
}
owner->postProcess();
owner->mutex[0].lock();
VP_SWAP_BUFFERS(bout);
owner->mutex[1].unlock();
}
vpbuffer_write=0;
while (remainder_read < remainder_write) {
bout->buffer[*bout->cursor][vpbuffer_write]=remainder[remainder_read];
vpbuffer_write++;
remainder_read++;
}
}
remainder_write=0;
while(vpbuffer_write < vpbuffer_samples && packetFinished>=0 )
{
packetFinished = av_read_frame(container,&packet);
if (packetFinished < 0){
break;
}
if (ATOMIC_CAS(&seek_to,SEEK_MAX,SEEK_MAX) != SEEK_MAX ){
int ret=av_seek_frame(container,audio_stream_id,seek_to *audio_st->time_base.den / audio_st->time_base.num ,AVSEEK_FLAG_ANY);
if (ret<0) {
DBG("seek failed");
} else {
current_in_seconds=seek_to;
avcodec_flush_buffers(ctx);
}
seek_to = SEEK_MAX;
}
if(packet.stream_index==audio_stream_id){
avcodec_decode_audio4(ctx,frame,&frameFinished,&packet);
av_samples_get_buffer_size(&plane_size, ctx->channels,
frame->nb_samples,
ctx->sample_fmt, 1);
if(frameFinished){
current_in_seconds = ( audio_st->time_base.num * frame->pkt_pts )/ audio_st->time_base.den ;
switch (sfmt){
case AV_SAMPLE_FMT_S16P:
for (int nb=0;nb<plane_size/sizeof(uint16_t);nb++){
for (int ch = 0; ch < ctx->channels; ch++) {
if (vpbuffer_write< vpbuffer_samples){
bout->currentBuffer()[vpbuffer_write]= ((short *) frame->extended_data[ch])[nb] * SHORTTOFL;
vpbuffer_write++;
} else {
remainder[remainder_write] = ((short *) frame->extended_data[ch])[nb] * SHORTTOFL;
remainder_write++;
}
}
}
break;
case AV_SAMPLE_FMT_FLTP:
for (int nb=0;nb<plane_size/sizeof(float);nb++){
for (int ch = 0; ch < ctx->channels; ch++) {
if (vpbuffer_write< vpbuffer_samples){
bout->currentBuffer()[vpbuffer_write]= ((float *) frame->extended_data[ch])[nb];
vpbuffer_write++;
} else {
remainder[remainder_write] = ((float *) frame->extended_data[ch])[nb];
remainder_write++;
}
}
}
break;
case AV_SAMPLE_FMT_S16:
for (int nb=0;nb<plane_size/sizeof(short);nb++){
if (vpbuffer_write< vpbuffer_samples){
bout->currentBuffer()[vpbuffer_write]= ((short *) frame->extended_data[0])[nb] * SHORTTOFL ;
vpbuffer_write++;
} else {
remainder[remainder_write] = ((short *) frame->extended_data[0])[nb] * SHORTTOFL;
remainder_write++;
}
}
break;
case AV_SAMPLE_FMT_FLT:
for (int nb=0;nb<plane_size/sizeof(float);nb++){
if (vpbuffer_write< vpbuffer_samples){
bout->currentBuffer()[vpbuffer_write]= ((float *) frame->extended_data[0])[nb] ;
vpbuffer_write++;
} else {
remainder[remainder_write] = ((float *) frame->extended_data[0])[nb];
remainder_write++;
}
}
break;
case AV_SAMPLE_FMT_U8P:
for (int nb=0;nb<plane_size/sizeof(uint8_t);nb++){
for (int ch = 0; ch < ctx->channels; ch++) {
if (vpbuffer_write< vpbuffer_samples){
bout->currentBuffer()[vpbuffer_write]= ( ( ((uint8_t *) frame->extended_data[0])[nb] - 127) * 32768 )/ 127 ;
vpbuffer_write++;
} else {
remainder[remainder_write] = ( ( ((uint8_t *) frame->extended_data[0])[nb] - 127) * 32768 )/ 127 ;
remainder_write++;
}
}
}
break;
case AV_SAMPLE_FMT_U8:
for (int nb=0;nb<plane_size/sizeof(uint8_t);nb++){
if (vpbuffer_write< vpbuffer_samples){
bout->currentBuffer()[vpbuffer_write]= ( ( ((uint8_t *) frame->extended_data[0])[nb] - 127) * 32768 )/ 127 ;
vpbuffer_write++;
} else {
remainder[remainder_write] = ( ( ((uint8_t *) frame->extended_data[0])[nb] - 127) * 32768 )/ 127 ;
remainder_write++;
}
}
break;
default:
WARN("PCM type not supported");
}
} else {
DBG("frame failed");
}
}
}
av_free_packet(&packet);
owner->postProcess();
owner->mutex[0].lock();
VP_SWAP_BUFFERS(bout);
owner->mutex[1].unlock();
last_read=time(NULL);
}
avcodec_free_frame(&frame);
}
