DeckLinkCaptureDelegate *p_delegate;
es_out_id_t *p_es;
- vlc_mutex_t lock;
- block_t *p_frame; // protected by <lock>
+ vlc_mutex_t frame_lock;
+ block_t *p_frame; // protected by <frame_lock>
+ vlc_cond_t has_frame; // related to <frame_lock>
};
class DeckLinkCaptureDelegate : public IDeckLinkInputCallback
{
demux_sys_t *p_sys = p_demux_->p_sys;
- if (videoFrame) {
- if (videoFrame->GetFlags() & bmdFrameHasNoInputSource) {
+ if(videoFrame)
+ {
+ if(videoFrame->GetFlags() & bmdFrameHasNoInputSource)
+ {
msg_Warn( p_demux_, "No input signal detected" );
return S_OK;
}
- msg_Dbg( p_demux_, "Received a frame" );
-
block_t *p_frame;
- p_frame = block_New( p_demux_, 720 * 576 * 3 );
- if ( !p_frame ) {
+ p_frame = block_New( p_demux_, 720 * 576 * 3 );
+ if( !p_frame )
+ {
msg_Err( p_demux_, "Could not allocate memory for frame" );
return S_OK;
- }
+ }
void *frame_bytes;
videoFrame->GetBytes( &frame_bytes );
memcpy( p_frame->p_buffer, frame_bytes, 720 * 576 * 3 );
BMDTimeValue stream_time, frame_duration;
- videoFrame->GetStreamTime( &stream_time, &frame_duration, 1000000 );
- p_frame->i_pts = stream_time;
+ videoFrame->GetStreamTime( &stream_time, &frame_duration, CLOCK_FREQ );
+ p_frame->i_pts = VLC_TS_0 + stream_time;
- vlc_mutex_lock( &p_sys->lock );
- p_sys->p_frame = p_frame; // FIXME: leak
- vlc_mutex_unlock( &p_sys->lock );
+ vlc_mutex_lock( &p_sys->frame_lock );
+ p_sys->p_frame = p_frame; // FIXME: leak
+ vlc_cond_signal( &p_sys->has_frame );
+ vlc_mutex_unlock( &p_sys->frame_lock );
}
return S_OK;
if( !p_sys )
return VLC_ENOMEM;
- vlc_mutex_init( &p_sys->lock );
+ vlc_mutex_init( &p_sys->frame_lock );
+ vlc_cond_init( &p_sys->has_frame );
p_sys->p_frame = NULL;
IDeckLinkIterator *decklink_iterator = CreateDeckLinkIteratorInstance();
- if ( !decklink_iterator ) {
+ if( !decklink_iterator )
+ {
msg_Err( p_demux, "DeckLink drivers not found." );
// FIXME: Leak here and several other error paths.
return VLC_EGENERIC;
HRESULT result;
result = decklink_iterator->Next( &p_sys->p_card );
- if ( result != S_OK ) {
+ if( result != S_OK )
+ {
msg_Err( p_demux, "No DeckLink PCI cards found" );
return VLC_EGENERIC;
}
- if ( p_sys->p_card->QueryInterface(IID_IDeckLinkInput, (void**)&p_sys->p_input) != S_OK ) {
+ if( p_sys->p_card->QueryInterface(IID_IDeckLinkInput, (void**)&p_sys->p_input) != S_OK )
+ {
msg_Err( p_demux, "Card has no inputs" );
return VLC_EGENERIC;
}
p_sys->p_input->SetCallback( p_sys->p_delegate );
result = p_sys->p_input->EnableVideoInput(bmdModePAL, bmdFormat8BitYUV, 0);
- if ( result != S_OK ) {
+ if( result != S_OK )
+ {
msg_Err( p_demux, "Failed to enable video input" );
return VLC_EGENERIC;
}
// FIXME: add audio
result = p_sys->p_input->StartStreams();
- if ( result != S_OK ) {
+ if( result != S_OK )
+ {
msg_Err( p_demux, "Failed to start streams" );
return VLC_EGENERIC;
}
/*eDeclare elementary streams */
es_format_t fmt;
- es_format_Init( &fmt, VIDEO_ES, VLC_CODEC_YUYV );
+ es_format_Init( &fmt, VIDEO_ES, VLC_CODEC_UYVY );
fmt.video.i_width = 720;
fmt.video.i_height = 576;
- fmt.video.i_sar_num = 1;
- fmt.video.i_sar_den = 1;
+ fmt.video.i_sar_num = 16 * fmt.video.i_height;
+ fmt.video.i_sar_den = 9 * fmt.video.i_width;
+ fmt.video.i_frame_rate = 25;
+ fmt.video.i_frame_rate_base = 1;
msg_Dbg( p_demux, "added new video es %4.4s %dx%d",
(char*)&fmt.i_codec, fmt.video.i_width, fmt.video.i_height );
static int Demux( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
+ block_t *p_block;
+
+ vlc_mutex_lock( &p_sys->frame_lock );
+
+ while( !p_sys->p_frame )
+ vlc_cond_wait( &p_sys->has_frame, &p_sys->frame_lock );
- vlc_mutex_lock( &p_sys->lock );
- block_t *p_block = p_sys->p_frame;
+ p_block = p_sys->p_frame;
p_sys->p_frame = NULL;
- vlc_mutex_unlock( &p_sys->lock );
-
- if ( p_block ) {
- msg_Dbg( p_demux, "Sending frame" );
- es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_block->i_pts );
- es_out_Send( p_demux->out, p_sys->p_es, p_block );
- } else {
- usleep(50000); // FIXME
- }
+
+ vlc_mutex_unlock( &p_sys->frame_lock );
+
+ es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_block->i_pts );
+ es_out_Send( p_demux->out, p_sys->p_es, p_block );
return 1;
}