--- /dev/null
+/*****************************************************************************
+ * decklink.cpp: BlackMagic DeckLink SDI input module
+ *****************************************************************************
+ * Copyright (C) 2010 VideoLAN
+ *
+ * Authors: Steinar H. Gunderson <steinar+vlc@gunderson.no>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ *****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#ifndef INT64_C
+#define INT64_C(c) c ## LL
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_input.h>
+#include <vlc_demux.h>
+#include <vlc_access.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>
+
+static int Open ( vlc_object_t * );
+static void Close( vlc_object_t * );
+
+#define CARD_INDEX_TEXT N_("Input card to use")
+#define CARD_INDEX_LONGTEXT N_( \
+ "DeckLink capture card to use, if multiple exist. " \
+ "The cards are numbered from 0." )
+
+#define MODE_TEXT N_("Desired input video mode")
+#define MODE_LONGTEXT N_( \
+ "Desired input video mode for DeckLink captures. " \
+ "This value should be a FOURCC code in textual " \
+ "form, e.g. \"ntsc\"." )
+
+#define CACHING_TEXT N_("Caching value in ms")
+#define CACHING_LONGTEXT N_( \
+ "Caching value for DeckLink captures. This " \
+ "value should be set in milliseconds." )
+
+#define AUDIO_CONNECTION_TEXT N_("Audio connection")
+#define AUDIO_CONNECTION_LONGTEXT N_( \
+ "Audio connection to use for DeckLink captures. " \
+ "Valid choices: embedded, aesebu, analog. " \
+ "Leave blank for card default." )
+
+#define RATE_TEXT N_("Audio sampling rate in Hz")
+#define RATE_LONGTEXT N_( \
+ "Audio sampling rate (in hertz) for DeckLink captures. " \
+ "0 disables audio input." )
+
+#define CHANNELS_TEXT N_("Number of audio channels")
+#define CHANNELS_LONGTEXT N_( \
+ "Number of input audio channels for DeckLink captures. " \
+ "Must be 2, 8 or 16. 0 disables audio input." )
+
+#define VIDEO_CONNECTION_TEXT N_("Video connection")
+#define VIDEO_CONNECTION_LONGTEXT N_( \
+ "Video connection to use for DeckLink captures. " \
+ "Valid choices: sdi, hdmi, opticalsdi, component, " \
+ "composite, svideo. " \
+ "Leave blank for card default." )
+
+#define ASPECT_RATIO_TEXT N_("Aspect ratio")
+#define ASPECT_RATIO_LONGTEXT N_( \
+ "Aspect ratio (4:3, 16:9). Default assumes square pixels." )
+
+vlc_module_begin ()
+ set_shortname( N_("DeckLink") )
+ set_description( N_("Blackmagic DeckLink SDI input") )
+ set_category( CAT_INPUT )
+ set_subcategory( SUBCAT_INPUT_ACCESS )
+
+ add_integer( "decklink-card-index", 0, NULL,
+ CARD_INDEX_TEXT, CARD_INDEX_LONGTEXT, true )
+ add_string( "decklink-mode", "pal ", NULL,
+ MODE_TEXT, MODE_LONGTEXT, true )
+ add_integer( "decklink-caching", DEFAULT_PTS_DELAY / 1000, NULL,
+ CACHING_TEXT, CACHING_LONGTEXT, true )
+ add_string( "decklink-audio-connection", 0, NULL,
+ AUDIO_CONNECTION_TEXT, AUDIO_CONNECTION_LONGTEXT, true )
+ add_integer( "decklink-audio-rate", 48000, NULL,
+ RATE_TEXT, RATE_LONGTEXT, true )
+ add_integer( "decklink-audio-channels", 2, NULL,
+ CHANNELS_TEXT, CHANNELS_LONGTEXT, true )
+ add_string( "decklink-video-connection", 0, NULL,
+ VIDEO_CONNECTION_TEXT, VIDEO_CONNECTION_LONGTEXT, true )
+ add_string( "decklink-aspect-ratio", NULL, NULL,
+ ASPECT_RATIO_TEXT, ASPECT_RATIO_LONGTEXT, true )
+
+ add_shortcut( "decklink" )
+ set_capability( "access_demux", 10 )
+ set_callbacks( Open, Close )
+vlc_module_end ()
+
+static int Demux ( demux_t * );
+static int Control( demux_t *, int, va_list );
+
+class DeckLinkCaptureDelegate;
+
+struct demux_sys_t
+{
+ IDeckLink *p_card;
+ IDeckLinkInput *p_input;
+ DeckLinkCaptureDelegate *p_delegate;
+
+ 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> */
+};
+
+class DeckLinkCaptureDelegate : public IDeckLinkInputCallback
+{
+public:
+ 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; }
+
+ virtual ULONG STDMETHODCALLTYPE AddRef(void)
+ {
+ return vlc_atomic_inc( &m_ref_ );
+ }
+
+ virtual ULONG STDMETHODCALLTYPE Release(void)
+ {
+ uintptr_t new_ref = vlc_atomic_dec( &m_ref_ );
+ if ( new_ref == 0 )
+ delete this;
+ return new_ref;
+ }
+
+ virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents, IDeckLinkDisplayMode*, BMDDetectedVideoInputFormatFlags);
+ virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame*, IDeckLinkAudioInputPacket*);
+
+private:
+ 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" );
+ return S_OK;
+}
+
+HRESULT DeckLinkCaptureDelegate::VideoInputFrameArrived(IDeckLinkVideoInputFrame* videoFrame, IDeckLinkAudioInputPacket* audioFrame)
+{
+ demux_sys_t *p_sys = p_demux_->p_sys;
+ block_t *p_video_frame = NULL;
+ block_t *p_audio_frame = NULL;
+
+ if( videoFrame )
+ {
+ if( videoFrame->GetFlags() & bmdFrameHasNoInputSource )
+ {
+ msg_Warn( p_demux_, "No input signal detected" );
+ return S_OK;
+ }
+
+ const int i_width = videoFrame->GetWidth();
+ const int i_height = videoFrame->GetHeight();
+ const int i_stride = videoFrame->GetRowBytes();
+ const int i_bpp = 2;
+
+ p_video_frame = block_New( p_demux_, i_width * i_height * i_bpp );
+ if( !p_video_frame )
+ {
+ msg_Err( p_demux_, "Could not allocate memory for video frame" );
+ return S_OK;
+ }
+
+ void *frame_bytes;
+ videoFrame->GetBytes( &frame_bytes );
+ for( int y = 0; y < i_height; ++y )
+ {
+ const uint8_t *src = (const uint8_t *)frame_bytes + i_stride * y;
+ uint8_t *dst = (uint8_t *)p_video_frame->p_buffer + i_width * i_bpp * y;
+ memcpy( dst, src, i_width * i_bpp );
+ }
+
+ BMDTimeValue stream_time, frame_duration;
+ videoFrame->GetStreamTime( &stream_time, &frame_duration, CLOCK_FREQ );
+ p_video_frame->i_flags = BLOCK_FLAG_TYPE_I | p_sys->i_dominance_flags;
+ if( p_sys->b_first_frame )
+ {
+ p_video_frame->i_flags |= BLOCK_FLAG_DISCONTINUITY;
+ p_sys->b_first_frame = false;
+ }
+ 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;
+
+ p_audio_frame = block_New( p_demux_, i_bytes );
+ 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;
+ }
+
+ void *frame_bytes;
+ audioFrame->GetBytes( &frame_bytes );
+ memcpy( p_audio_frame->p_buffer, frame_bytes, i_bytes );
+
+ BMDTimeValue packet_time;
+ audioFrame->GetPacketTime( &packet_time, CLOCK_FREQ );
+ p_audio_frame->i_pts = p_audio_frame->i_dts = VLC_TS_0 + packet_time;
+ }
+
+ if( p_video_frame || p_audio_frame )
+ {
+ vlc_mutex_lock( &p_sys->frame_lock );
+ if( p_video_frame )
+ {
+ if( p_sys->p_video_frame )
+ block_Release( p_sys->p_video_frame );
+ p_sys->p_video_frame = p_video_frame;
+ }
+ if( p_audio_frame )
+ {
+ if( p_sys->p_audio_frame )
+ block_Release( p_sys->p_audio_frame );
+ p_sys->p_audio_frame = p_audio_frame;
+ }
+ vlc_cond_signal( &p_sys->has_frame );
+ vlc_mutex_unlock( &p_sys->frame_lock );
+ }
+
+ return S_OK;
+}
+
+static int Open( vlc_object_t *p_this )
+{
+ 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' )
+ return VLC_EGENERIC;
+
+ /* Set up p_demux */
+ p_demux->pf_demux = Demux;
+ p_demux->pf_control = Control;
+ p_demux->info.i_update = 0;
+ p_demux->info.i_title = 0;
+ p_demux->info.i_seekpoint = 0;
+ p_demux->p_sys = p_sys = (demux_sys_t*)calloc( 1, sizeof( demux_sys_t ) );
+ if( !p_sys )
+ return VLC_ENOMEM;
+
+ vlc_mutex_init( &p_sys->frame_lock );
+ vlc_cond_init( &p_sys->has_frame );
+ p_sys->b_first_frame = true;
+
+ IDeckLinkIterator *decklink_iterator = CreateDeckLinkIteratorInstance();
+ if( !decklink_iterator )
+ {
+ msg_Err( p_demux, "DeckLink drivers not found." );
+ ret = VLC_EGENERIC;
+ goto finish;
+ }
+
+ HRESULT result;
+
+ i_card_index = var_InheritInteger( p_demux, "decklink-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;
+ }
+
+ if( result != S_OK )
+ {
+ msg_Err( p_demux, "DeckLink PCI card %d not found", i_card_index );
+ 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" );
+ 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" );
+ 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" );
+ ret = VLC_EGENERIC;
+ goto finish;
+ }
+
+ psz_video_connection = var_CreateGetNonEmptyString( p_demux, "decklink-video-connection" );
+ if( psz_video_connection )
+ {
+ BMDVideoConnection conn;
+ if ( !strcmp( psz_video_connection, "sdi" ) )
+ conn = bmdVideoConnectionSDI;
+ else if ( !strcmp( psz_video_connection, "hdmi" ) )
+ conn = bmdVideoConnectionHDMI;
+ else if ( !strcmp( psz_video_connection, "opticalsdi" ) )
+ conn = bmdVideoConnectionOpticalSDI;
+ else if ( !strcmp( psz_video_connection, "component" ) )
+ conn = bmdVideoConnectionComponent;
+ else if ( !strcmp( psz_video_connection, "composite" ) )
+ conn = bmdVideoConnectionComposite;
+ else if ( !strcmp( psz_video_connection, "svideo" ) )
+ conn = bmdVideoConnectionSVideo;
+ else
+ {
+ msg_Err( p_demux, "Invalid --decklink-video-connection specified; choose one of " \
+ "sdi, hdmi, opticalsdi, component, composite, or svideo." );
+ ret = VLC_EGENERIC;
+ goto finish;
+ }
+
+ 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" );
+ ret = VLC_EGENERIC;
+ goto finish;
+ }
+ }
+
+ psz_audio_connection = var_CreateGetNonEmptyString( p_demux, "decklink-audio-connection" );
+ if( psz_audio_connection )
+ {
+ BMDAudioConnection conn;
+ if ( !strcmp( psz_audio_connection, "embedded" ) )
+ conn = bmdAudioConnectionEmbedded;
+ else if ( !strcmp( psz_audio_connection, "aesebu" ) )
+ conn = bmdAudioConnectionAESEBU;
+ else if ( !strcmp( psz_audio_connection, "analog" ) )
+ conn = bmdAudioConnectionAnalog;
+ else
+ {
+ msg_Err( p_demux, "Invalid --decklink-audio-connection specified; choose one of " \
+ "embedded, aesebu, or analog." );
+ ret = VLC_EGENERIC;
+ goto finish;
+ }
+
+ 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" );
+ ret = VLC_EGENERIC;
+ goto finish;
+ }
+ }
+
+ /* 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" );
+ ret = VLC_EGENERIC;
+ goto finish;
+ }
+
+ psz_display_mode = var_InheritString( p_demux, "decklink-mode" );
+ if( !psz_display_mode || strlen( psz_display_mode ) == 0 || strlen( psz_display_mode ) > 4 ) {
+ msg_Err( p_demux, "Missing or invalid --decklink-mode string" );
+ ret = VLC_EGENERIC;
+ goto finish;
+ }
+
+ /*
+ * Pad the --decklink-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];
+
+ BMDDisplayMode wanted_mode_id;
+ memcpy( &wanted_mode_id, &sz_display_mode_padded, sizeof(wanted_mode_id) );
+
+ 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;
+
+ char sz_mode_id_text[5] = {0};
+ BMDDisplayMode mode_id = ntohl( p_display_mode->GetDisplayMode() );
+ memcpy( sz_mode_id_text, &mode_id, sizeof(mode_id) );
+
+ const char *psz_mode_name;
+ result = p_display_mode->GetName( &psz_mode_name );
+ if( result != S_OK )
+ {
+ msg_Err( p_demux, "Failed to get display mode name" );
+ p_display_mode->Release();
+ ret = VLC_EGENERIC;
+ goto finish;
+ }
+
+ BMDTimeValue frame_duration, time_scale;
+ result = p_display_mode->GetFrameRate( &frame_duration, &time_scale );
+ if( result != S_OK )
+ {
+ msg_Err( p_demux, "Failed to get frame rate" );
+ p_display_mode->Release();
+ ret = VLC_EGENERIC;
+ goto finish;
+ }
+
+ const char *psz_field_dominance;
+ uint32_t i_dominance_flags = 0;
+ switch( p_display_mode->GetFieldDominance() )
+ {
+ case bmdProgressiveFrame:
+ psz_field_dominance = "";
+ break;
+ case bmdProgressiveSegmentedFrame:
+ psz_field_dominance = ", segmented";
+ break;
+ case bmdLowerFieldFirst:
+ psz_field_dominance = ", interlaced [BFF]";
+ i_dominance_flags = BLOCK_FLAG_BOTTOM_FIELD_FIRST;
+ break;
+ case bmdUpperFieldFirst:
+ psz_field_dominance = ", interlaced [TFF]";
+ i_dominance_flags = BLOCK_FLAG_TOP_FIELD_FIRST;
+ break;
+ case bmdUnknownFieldDominance:
+ default:
+ psz_field_dominance = ", unknown field dominance";
+ break;
+ }
+
+ msg_Dbg( p_demux, "Found mode '%s': %s (%dx%d, %.3f fps%s)",
+ sz_mode_id_text, psz_mode_name,
+ p_display_mode->GetWidth(), p_display_mode->GetHeight(),
+ double(time_scale) / frame_duration, psz_field_dominance );
+
+ if( wanted_mode_id == mode_id )
+ {
+ b_found_mode = true;
+ p_sys->i_width = p_display_mode->GetWidth();
+ p_sys->i_height = p_display_mode->GetHeight();
+ p_sys->i_fps_num = time_scale;
+ p_sys->i_fps_den = frame_duration;
+ p_sys->i_dominance_flags = i_dominance_flags;
+ }
+
+ p_display_mode->Release();
+ }
+
+ if( !b_found_mode )
+ {
+ msg_Err( p_demux, "Unknown video mode specified. " \
+ "Run VLC with -v --verbose-objects=-all,+decklink " \
+ "to get a list of supported modes." );
+ 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" );
+ ret = VLC_EGENERIC;
+ goto finish;
+ }
+
+ /* Set up audio. */
+ p_sys->i_rate = var_InheritInteger( p_demux, "decklink-audio-rate" );
+ p_sys->i_channels = var_InheritInteger( p_demux, "decklink-audio-channels" );
+ if( p_sys->i_rate > 0 && p_sys->i_channels > 0 )
+ {
+ result = p_sys->p_input->EnableAudioInput( p_sys->i_rate, bmdAudioSampleType16bitInteger, p_sys->i_channels );
+ if( result != S_OK )
+ {
+ msg_Err( p_demux, "Failed to enable audio input" );
+ 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, "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 */
+ es_format_t video_fmt;
+ es_format_Init( &video_fmt, VIDEO_ES, VLC_CODEC_UYVY );
+ video_fmt.video.i_width = p_sys->i_width;
+ video_fmt.video.i_height = p_sys->i_height;
+ video_fmt.video.i_sar_num = 1;
+ video_fmt.video.i_sar_den = 1;
+ 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_aspect = var_CreateGetNonEmptyString( p_demux, "decklink-aspect-ratio" );
+ if( psz_aspect )
+ {
+ char *psz_denominator = strchr( psz_aspect, ':' );
+ if( psz_denominator )
+ {
+ *psz_denominator++ = '\0';
+ 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_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;
+ audio_fmt.audio.i_rate = p_sys->i_rate;
+ audio_fmt.audio.i_bitspersample = 16;
+ audio_fmt.audio.i_blockalign = audio_fmt.audio.i_channels * audio_fmt.audio.i_bitspersample / 8;
+ audio_fmt.i_bitrate = audio_fmt.audio.i_channels * audio_fmt.audio.i_rate * audio_fmt.audio.i_bitspersample;
+
+ msg_Dbg( p_demux, "added new audio es %4.4s %dHz %dbpp %dch",
+ (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 );
+
+ /* Update default_pts to a suitable value for access */
+ var_Create( p_demux, "decklink-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
+
+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 )
+{
+ demux_t *p_demux = (demux_t *)p_this;
+ demux_sys_t *p_sys = p_demux->p_sys;
+
+ if( p_sys->p_input )
+ {
+ p_sys->p_input->StopStreams();
+ p_sys->p_input->Release();
+ }
+
+ if( p_sys->p_card )
+ p_sys->p_card->Release();
+
+ 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;
+
+ switch( i_query )
+ {
+ /* Special for access_demux */
+ case DEMUX_CAN_PAUSE:
+ case DEMUX_CAN_SEEK:
+ case DEMUX_CAN_CONTROL_PACE:
+ pb = (bool*)va_arg( args, bool * );
+ *pb = false;
+ return VLC_SUCCESS;
+
+ case DEMUX_GET_PTS_DELAY:
+ pi64 = (int64_t*)va_arg( args, int64_t * );
+ *pi64 = var_GetInteger( p_demux, "decklink-caching" ) * 1000;
+ return VLC_SUCCESS;
+
+ case DEMUX_GET_TIME:
+ pi64 = (int64_t*)va_arg( args, int64_t * );
+ *pi64 = p_sys->i_last_pts;
+ return VLC_SUCCESS;
+
+ /* TODO implement others */
+ default:
+ return VLC_EGENERIC;
+ }
+
+ return VLC_EGENERIC;
+}
+
+static int Demux( demux_t *p_demux )
+{
+ demux_sys_t *p_sys = p_demux->p_sys;
+ block_t *p_video_block = NULL;
+ block_t *p_audio_block = NULL;
+
+ vlc_mutex_lock( &p_sys->frame_lock );
+
+ while( !p_sys->p_video_frame && !p_sys->p_audio_frame )
+ vlc_cond_wait( &p_sys->has_frame, &p_sys->frame_lock );
+
+ p_video_block = p_sys->p_video_frame;
+ p_sys->p_video_frame = NULL;
+
+ p_audio_block = p_sys->p_audio_frame;
+ p_sys->p_audio_frame = NULL;
+
+ vlc_mutex_unlock( &p_sys->frame_lock );
+
+ 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 );
+ }
+
+ return 1;
+}
+
projects / vlc / commitdiff