-/* BlackMagic SDI driver */
+/* Blackmagic SDI driver */
#ifdef HAVE_CONFIG_H
# include "config.h"
#include <vlc_picture.h>
#include <vlc_charset.h>
#include <vlc_fs.h>
+#include <vlc_atomic.h>
#include <arpa/inet.h>
-#include "DeckLinkAPI.h"
-#include "DeckLinkAPIDispatch.cpp"
+#include <DeckLinkAPI.h>
+#include <DeckLinkAPIDispatch.cpp>
static int Open ( vlc_object_t * );
static void Close( vlc_object_t * );
vlc_module_begin ()
set_shortname( N_("SDI") )
- set_description( N_("BlackMagic SDI input") )
+ set_description( N_("Blackmagic SDI input") )
set_category( CAT_INPUT )
set_subcategory( SUBCAT_INPUT_ACCESS )
-
+
add_integer( "sdi-card-index", 0, NULL,
CARD_INDEX_TEXT, CARD_INDEX_LONGTEXT, true )
add_string( "sdi-mode", "pal ", NULL,
es_out_id_t *p_video_es;
es_out_id_t *p_audio_es;
bool b_first_frame;
+ int i_last_pts;
int i_width, i_height, i_fps_num, i_fps_den;
uint32_t i_dominance_flags;
int i_rate, i_channels;
vlc_mutex_t frame_lock;
- block_t *p_video_frame; // protected by <frame_lock>
- block_t *p_audio_frame; // protected by <frame_lock>
- vlc_cond_t has_frame; // related to <frame_lock>
+ block_t *p_video_frame; /* protected by <frame_lock> */
+ block_t *p_audio_frame; /* protected by <frame_lock> */
+ vlc_cond_t has_frame; /* related to <frame_lock> */
};
class DeckLinkCaptureDelegate : public IDeckLinkInputCallback
{
public:
- DeckLinkCaptureDelegate( demux_t *p_demux ) : m_ref_(1), p_demux_(p_demux) {}
+ DeckLinkCaptureDelegate( demux_t *p_demux ) : p_demux_(p_demux)
+ {
+ vlc_atomic_set( &m_ref_, 1 );
+ }
virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, LPVOID *ppv) { return E_NOINTERFACE; }
- // Note: AddRef() and Release() here are not thread safe.
-
virtual ULONG STDMETHODCALLTYPE AddRef(void)
{
- return ++m_ref_;
+ return vlc_atomic_inc( &m_ref_ );
}
virtual ULONG STDMETHODCALLTYPE Release(void)
{
- if ( --m_ref_ == 0 )
- {
+ uintptr_t new_ref = vlc_atomic_dec( &m_ref_ );
+ if ( new_ref == 0 )
delete this;
- return 0;
- }
- return m_ref_;
+ return new_ref;
}
virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents, IDeckLinkDisplayMode*, BMDDetectedVideoInputFormatFlags);
virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame*, IDeckLinkAudioInputPacket*);
private:
- int m_ref_;
+ vlc_atomic_t m_ref_;
demux_t *p_demux_;
};
HRESULT DeckLinkCaptureDelegate::VideoInputFormatChanged(BMDVideoInputFormatChangedEvents events, IDeckLinkDisplayMode *mode, BMDDetectedVideoInputFormatFlags)
{
- msg_Dbg( p_demux_, "Video input format changed" );
+ msg_Dbg( p_demux_, "Video input format changed" );
return S_OK;
}
}
p_video_frame->i_pts = p_video_frame->i_dts = VLC_TS_0 + stream_time;
}
-
+
if( audioFrame )
{
const int i_bytes = audioFrame->GetSampleFrameCount() * sizeof(int16_t) * p_sys->i_channels;
if( !p_audio_frame )
{
msg_Err( p_demux_, "Could not allocate memory for audio frame" );
+ if( p_video_frame )
+ block_Release( p_video_frame );
return S_OK;
}
vlc_mutex_init( &p_sys->frame_lock );
vlc_cond_init( &p_sys->has_frame );
- p_sys->p_video_frame = NULL;
+ p_sys->b_first_frame = true;
IDeckLinkIterator *decklink_iterator = CreateDeckLinkIteratorInstance();
if( !decklink_iterator )
int i_card_index = var_CreateGetInteger( p_demux, "sdi-card-index" );
for( int i = 0; i <= i_card_index; ++i )
{
+ if( p_sys->p_card )
+ p_sys->p_card->Release();
result = decklink_iterator->Next( &p_sys->p_card );
if( result != S_OK )
break;
const char *psz_model_name;
result = p_sys->p_card->GetModelName( &psz_model_name );
-
+
if( result != S_OK )
{
msg_Err( p_demux, "Could not get model name" );
Close( p_this );
return VLC_EGENERIC;
}
-
- // Set up the video and audio sources.
+
+ /* Set up the video and audio sources. */
IDeckLinkConfiguration *p_config;
if( p_sys->p_card->QueryInterface( IID_IDeckLinkConfiguration, (void**)&p_config) != S_OK )
{
Close( p_this );
return VLC_EGENERIC;
}
-
+
char *psz_tmp = var_CreateGetNonEmptyString( p_demux, "sdi-video-connection" );
if( psz_tmp )
{
Close( p_this );
return VLC_EGENERIC;
}
- }
+ }
psz_tmp = var_CreateGetNonEmptyString( p_demux, "sdi-audio-connection" );
if( psz_tmp )
{
msg_Err( p_demux, "Invalid --sdi-audio-connection specified; choose one of " \
"embedded, aesebu, or analog." );
+ free( psz_tmp );
+ p_config->Release();
Close( p_this );
return VLC_EGENERIC;
}
p_config->Release();
- // Get the list of display modes.
+ /* Get the list of display modes. */
IDeckLinkDisplayModeIterator *p_display_iterator;
result = p_sys->p_input->GetDisplayModeIterator( &p_display_iterator );
if( result != S_OK )
Close( p_this );
return VLC_EGENERIC;
}
-
+
char *psz_display_mode = var_CreateGetString( p_demux, "sdi-mode" );
if( !psz_display_mode || strlen( psz_display_mode ) == 0 || strlen( psz_display_mode ) > 4 ) {
msg_Err( p_demux, "Missing or invalid --sdi-mode string" );
+ free( psz_display_mode );
p_display_iterator->Release();
Close( p_this );
return VLC_EGENERIC;
}
- // Pad the --sdi-mode string to four characters, so the user can specify e.g. "pal"
- // without having to add the trailing space.
+ /*
+ * Pad the --sdi-mode string to four characters, so the user can specify e.g. "pal"
+ * without having to add the trailing space.
+ */
char sz_display_mode_padded[5];
strcpy(sz_display_mode_padded, " ");
for( int i = 0; i < strlen( psz_display_mode ); ++i )
sz_display_mode_padded[i] = psz_display_mode[i];
+ free( psz_display_mode );
+
BMDDisplayMode wanted_mode_id;
memcpy( &wanted_mode_id, &sz_display_mode_padded, sizeof(wanted_mode_id) );
-
+
bool b_found_mode = false;
for (;;)
IDeckLinkDisplayMode *p_display_mode;
result = p_display_iterator->Next( &p_display_mode );
if( result != S_OK || !p_display_mode )
- {
- break;
- }
+ break;
char sz_mode_id_text[5] = {0};
BMDDisplayMode mode_id = ntohl( p_display_mode->GetDisplayMode() );
if( result != S_OK )
{
msg_Err( p_demux, "Failed to get display mode name" );
+ p_display_mode->Release();
p_display_iterator->Release();
Close( p_this );
return VLC_EGENERIC;
if( result != S_OK )
{
msg_Err( p_demux, "Failed to get frame rate" );
+ p_display_mode->Release();
p_display_iterator->Release();
Close( p_this );
return VLC_EGENERIC;
p_sys->i_fps_den = frame_duration;
p_sys->i_dominance_flags = i_dominance_flags;
}
+
+ p_display_mode->Release();
}
p_display_iterator->Release();
Close( p_this );
return VLC_EGENERIC;
}
-
- // Set up audio.
+
+ /* Set up audio. */
p_sys->i_rate = var_CreateGetInteger( p_demux, "sdi-audio-rate" );
p_sys->i_channels = var_CreateGetInteger( p_demux, "sdi-audio-channels" );
if( p_sys->i_rate > 0 && p_sys->i_channels > 0 )
return VLC_EGENERIC;
}
}
-
+
p_sys->p_delegate = new DeckLinkCaptureDelegate( p_demux );
p_sys->p_input->SetCallback( p_sys->p_delegate );
video_fmt.video.i_frame_rate = p_sys->i_fps_num;
video_fmt.video.i_frame_rate_base = p_sys->i_fps_den;
video_fmt.i_bitrate = video_fmt.video.i_width * video_fmt.video.i_height * video_fmt.video.i_frame_rate * 2 * 8;
-
+
psz_tmp = var_CreateGetNonEmptyString( p_demux, "sdi-aspect-ratio" );
if( psz_tmp )
{
msg_Dbg( p_demux, "added new video es %4.4s %dx%d",
(char*)&video_fmt.i_codec, video_fmt.video.i_width, video_fmt.video.i_height );
p_sys->p_video_es = es_out_Add( p_demux->out, &video_fmt );
-
+
es_format_t audio_fmt;
es_format_Init( &audio_fmt, AUDIO_ES, VLC_CODEC_S16N );
audio_fmt.audio.i_channels = p_sys->i_channels;
(char*)&audio_fmt.i_codec, audio_fmt.audio.i_rate, audio_fmt.audio.i_bitspersample, audio_fmt.audio.i_channels);
p_sys->p_audio_es = es_out_Add( p_demux->out, &audio_fmt );
- p_sys->b_first_frame = true;
-
/* Update default_pts to a suitable value for access */
var_Create( p_demux, "sdi-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
if( p_sys->p_delegate )
p_sys->p_delegate->Release();
+ if( p_sys->p_video_frame )
+ block_Release( p_sys->p_video_frame );
+
+ if( p_sys->p_audio_frame )
+ block_Release( p_sys->p_audio_frame );
+
free( p_sys );
}
static int Control( demux_t *p_demux, int i_query, va_list args )
{
+ demux_sys_t *p_sys = p_demux->p_sys;
bool *pb;
int64_t *pi64;
case DEMUX_GET_TIME:
pi64 = (int64_t*)va_arg( args, int64_t * );
- *pi64 = mdate(); // FIXME
+ *pi64 = p_sys->i_last_pts;
return VLC_SUCCESS;
/* TODO implement others */
if( p_video_block )
{
+ if( p_video_block->i_pts > p_sys->i_last_pts )
+ p_sys->i_last_pts = p_video_block->i_pts;
es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_video_block->i_pts );
es_out_Send( p_demux->out, p_sys->p_video_es, p_video_block );
}
-
+
if( p_audio_block )
{
+ if( p_audio_block->i_pts > p_sys->i_last_pts )
+ p_sys->i_last_pts = p_audio_block->i_pts;
es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_audio_block->i_pts );
es_out_Send( p_demux->out, p_sys->p_audio_es, p_audio_block );
}
projects / vlc / blobdiff