-/* 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,
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;
}
{
demux_t *p_demux = (demux_t*)p_this;
demux_sys_t *p_sys;
+ int ret = VLC_SUCCESS;
+ char *psz_aspect;
+ char *psz_display_mode = NULL;
+ char *psz_video_connection = NULL;
+ char *psz_audio_connection = NULL;
+ bool b_found_mode;
+ int i_card_index;
/* Only when selected */
if( *p_demux->psz_access == '\0' )
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 )
{
msg_Err( p_demux, "DeckLink drivers not found." );
- decklink_iterator->Release();
- Close( p_this );
- return VLC_EGENERIC;
+ ret = VLC_EGENERIC;
+ goto finish;
}
HRESULT result;
- int i_card_index = var_CreateGetInteger( p_demux, "sdi-card-index" );
+ 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;
}
- decklink_iterator->Release();
-
if( result != S_OK )
{
msg_Err( p_demux, "DeckLink PCI card %d not found", i_card_index );
- Close( p_this );
- return VLC_EGENERIC;
+ ret = VLC_EGENERIC;
+ goto finish;
}
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;
+ ret = VLC_EGENERIC;
+ goto finish;
}
msg_Dbg( p_demux, "Opened DeckLink PCI card %d (%s)", i_card_index, psz_model_name );
if( p_sys->p_card->QueryInterface( IID_IDeckLinkInput, (void**)&p_sys->p_input) != S_OK )
{
msg_Err( p_demux, "Card has no inputs" );
- Close( p_this );
- return VLC_EGENERIC;
+ ret = VLC_EGENERIC;
+ goto finish;
}
-
+
/* Set up the video and audio sources. */
IDeckLinkConfiguration *p_config;
if( p_sys->p_card->QueryInterface( IID_IDeckLinkConfiguration, (void**)&p_config) != S_OK )
{
msg_Err( p_demux, "Failed to get configuration interface" );
- Close( p_this );
- return VLC_EGENERIC;
+ ret = VLC_EGENERIC;
+ goto finish;
}
-
- char *psz_tmp = var_CreateGetNonEmptyString( p_demux, "sdi-video-connection" );
- if( psz_tmp )
+
+ psz_video_connection = var_CreateGetNonEmptyString( p_demux, "sdi-video-connection" );
+ if( psz_video_connection )
{
BMDVideoConnection conn;
- if ( !strcmp( psz_tmp, "sdi" ) )
+ if ( !strcmp( psz_video_connection, "sdi" ) )
conn = bmdVideoConnectionSDI;
- else if ( !strcmp( psz_tmp, "hdmi" ) )
+ else if ( !strcmp( psz_video_connection, "hdmi" ) )
conn = bmdVideoConnectionHDMI;
- else if ( !strcmp( psz_tmp, "opticalsdi" ) )
+ else if ( !strcmp( psz_video_connection, "opticalsdi" ) )
conn = bmdVideoConnectionOpticalSDI;
- else if ( !strcmp( psz_tmp, "component" ) )
+ else if ( !strcmp( psz_video_connection, "component" ) )
conn = bmdVideoConnectionComponent;
- else if ( !strcmp( psz_tmp, "composite" ) )
+ else if ( !strcmp( psz_video_connection, "composite" ) )
conn = bmdVideoConnectionComposite;
- else if ( !strcmp( psz_tmp, "svideo" ) )
+ else if ( !strcmp( psz_video_connection, "svideo" ) )
conn = bmdVideoConnectionSVideo;
else
{
msg_Err( p_demux, "Invalid --sdi-video-connection specified; choose one of " \
"sdi, hdmi, opticalsdi, component, composite, or svideo." );
- p_config->Release();
- free( psz_tmp );
- Close( p_this );
- return VLC_EGENERIC;
+ ret = VLC_EGENERIC;
+ goto finish;
}
- free( psz_tmp );
msg_Dbg( p_demux, "Setting video input format to 0x%x", conn);
result = p_config->SetVideoInputFormat( conn );
if( result != S_OK )
{
msg_Err( p_demux, "Failed to set video input connection" );
- p_config->Release();
- Close( p_this );
- return VLC_EGENERIC;
+ ret = VLC_EGENERIC;
+ goto finish;
}
- }
+ }
- psz_tmp = var_CreateGetNonEmptyString( p_demux, "sdi-audio-connection" );
- if( psz_tmp )
+ psz_audio_connection = var_CreateGetNonEmptyString( p_demux, "sdi-audio-connection" );
+ if( psz_audio_connection )
{
BMDAudioConnection conn;
- if ( !strcmp( psz_tmp, "embedded" ) )
+ if ( !strcmp( psz_audio_connection, "embedded" ) )
conn = bmdAudioConnectionEmbedded;
- else if ( !strcmp( psz_tmp, "aesebu" ) )
+ else if ( !strcmp( psz_audio_connection, "aesebu" ) )
conn = bmdAudioConnectionAESEBU;
- else if ( !strcmp( psz_tmp, "analog" ) )
+ else if ( !strcmp( psz_audio_connection, "analog" ) )
conn = bmdAudioConnectionAnalog;
else
{
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;
+ ret = VLC_EGENERIC;
+ goto finish;
}
- free( psz_tmp );
msg_Dbg( p_demux, "Setting audio input format to 0x%x", conn);
result = p_config->SetAudioInputFormat( conn );
if( result != S_OK )
{
msg_Err( p_demux, "Failed to set audio input connection" );
- p_config->Release();
- Close( p_this );
- return VLC_EGENERIC;
+ ret = VLC_EGENERIC;
+ goto finish;
}
}
- p_config->Release();
-
/* Get the list of display modes. */
IDeckLinkDisplayModeIterator *p_display_iterator;
result = p_sys->p_input->GetDisplayModeIterator( &p_display_iterator );
if( result != S_OK )
{
msg_Err( p_demux, "Failed to enumerate display modes" );
- p_display_iterator->Release();
- Close( p_this );
- return VLC_EGENERIC;
+ ret = VLC_EGENERIC;
+ goto finish;
}
-
- char *psz_display_mode = var_CreateGetString( p_demux, "sdi-mode" );
+
+ 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;
+ ret = VLC_EGENERIC;
+ goto finish;
}
/*
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;
+
+ 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() );
{
msg_Err( p_demux, "Failed to get display mode name" );
p_display_mode->Release();
- p_display_iterator->Release();
- Close( p_this );
- return VLC_EGENERIC;
+ ret = VLC_EGENERIC;
+ goto finish;
}
BMDTimeValue frame_duration, time_scale;
{
msg_Err( p_demux, "Failed to get frame rate" );
p_display_mode->Release();
- p_display_iterator->Release();
- Close( p_this );
- return VLC_EGENERIC;
+ ret = VLC_EGENERIC;
+ goto finish;
}
const char *psz_field_dominance;
p_display_mode->Release();
}
- p_display_iterator->Release();
-
if( !b_found_mode )
{
msg_Err( p_demux, "Unknown SDI mode specified. " \
"Run VLC with -v --verbose-objects=-all,+sdi " \
"to get a list of supported modes." );
- Close( p_this );
- return VLC_EGENERIC;
+ ret = VLC_EGENERIC;
+ goto finish;
}
result = p_sys->p_input->EnableVideoInput( htonl( wanted_mode_id ), bmdFormat8BitYUV, 0 );
if( result != S_OK )
{
msg_Err( p_demux, "Failed to enable video input" );
- Close( p_this );
- return VLC_EGENERIC;
+ ret = VLC_EGENERIC;
+ goto finish;
}
-
+
/* 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( result != S_OK )
{
msg_Err( p_demux, "Failed to enable audio input" );
- Close( p_this );
- return VLC_EGENERIC;
+ ret = VLC_EGENERIC;
+ goto finish;
}
}
-
+
p_sys->p_delegate = new DeckLinkCaptureDelegate( p_demux );
p_sys->p_input->SetCallback( p_sys->p_delegate );
result = p_sys->p_input->StartStreams();
if( result != S_OK )
{
- msg_Err( p_demux, "Failed to start streams" );
- Close( p_this );
- return VLC_EGENERIC;
+ msg_Err( p_demux, "Could not start streaming from SDI card. This could be caused "
+ "by invalid video mode or flags, access denied, or card already in use." );
+ ret = VLC_EGENERIC;
+ goto finish;
}
/* Declare elementary streams */
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 )
+
+ psz_aspect = var_CreateGetNonEmptyString( p_demux, "sdi-aspect-ratio" );
+ if( psz_aspect )
{
- char *psz_denominator = strchr( psz_tmp, ':' );
+ char *psz_denominator = strchr( psz_aspect, ':' );
if( psz_denominator )
{
*psz_denominator++ = '\0';
- video_fmt.video.i_sar_num = atoi( psz_tmp ) * video_fmt.video.i_height;
+ video_fmt.video.i_sar_num = atoi( psz_aspect ) * video_fmt.video.i_height;
video_fmt.video.i_sar_den = atoi( psz_denominator ) * video_fmt.video.i_width;
}
- free( psz_tmp );
+ free( psz_aspect );
}
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 );
- return VLC_SUCCESS;
+finish:
+ if( decklink_iterator )
+ decklink_iterator->Release();
+
+ if( p_config )
+ p_config->Release();
+
+ free( psz_video_connection );
+ free( psz_audio_connection );
+ free( psz_display_mode );
+
+ if( p_display_iterator )
+ p_display_iterator->Release();
+
+ if( ret != VLC_SUCCESS )
+ Close( p_this );
+
+ return ret;
}
static void Close( vlc_object_t *p_this )
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 );
}
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 )
projects / vlc / blobdiff