1 /* BlackMagic SDI driver */
8 #define INT64_C(c) c ## LL
11 #include <vlc_common.h>
12 #include <vlc_plugin.h>
13 #include <vlc_input.h>
14 #include <vlc_demux.h>
15 #include <vlc_access.h>
16 #include <vlc_picture.h>
17 #include <vlc_charset.h>
20 #include <arpa/inet.h>
22 #include "DeckLinkAPI.h"
23 #include "DeckLinkAPIDispatch.cpp"
25 static int Open ( vlc_object_t * );
26 static void Close( vlc_object_t * );
28 #define MODE_TEXT N_("Desired input video mode")
29 #define MODE_LONGTEXT N_( \
30 "Desired input video mode for SDI captures. " \
31 "This value should be a FOURCC code in textual " \
32 "form, e.g. \"ntsc\"." )
34 #define CACHING_TEXT N_("Caching value in ms")
35 #define CACHING_LONGTEXT N_( \
36 "Caching value for SDI captures. This " \
37 "value should be set in milliseconds." )
39 #define AUDIO_CONNECTION_TEXT N_("Audio connection")
40 #define AUDIO_CONNECTION_LONGTEXT N_( \
41 "Audio connection to use for SDI captures. " \
42 "Valid choices: embedded, aesebu, analog. " \
43 "Leave blank for card default." )
45 #define RATE_TEXT N_("Audio sampling rate in Hz")
46 #define RATE_LONGTEXT N_( \
47 "Audio sampling rate (in hertz) for SDI captures. " \
48 "0 disables audio input." )
50 #define CHANNELS_TEXT N_("Number of audio channels")
51 #define CHANNELS_LONGTEXT N_( \
52 "Number of input audio channels for SDI captures. " \
53 "Must be 2, 8 or 16. 0 disables audio input." )
55 #define ASPECT_RATIO_TEXT N_("Aspect ratio")
56 #define ASPECT_RATIO_LONGTEXT N_( \
57 "Aspect ratio (4:3, 16:9). Default assumes square pixels." )
60 set_shortname( N_("SDI") )
61 set_description( N_("BlackMagic SDI input") )
62 set_category( CAT_INPUT )
63 set_subcategory( SUBCAT_INPUT_ACCESS )
65 add_string( "sdi-mode", "pal ", NULL,
66 MODE_TEXT, MODE_LONGTEXT, true )
67 add_integer( "sdi-caching", DEFAULT_PTS_DELAY / 1000, NULL,
68 CACHING_TEXT, CACHING_LONGTEXT, true )
69 add_string( "sdi-audio-connection", 0, NULL,
70 AUDIO_CONNECTION_TEXT, AUDIO_CONNECTION_LONGTEXT, true )
71 add_integer( "sdi-audio-rate", 48000, NULL,
72 RATE_TEXT, RATE_LONGTEXT, true )
73 add_integer( "sdi-audio-channels", 2, NULL,
74 CHANNELS_TEXT, CHANNELS_LONGTEXT, true )
75 add_string( "sdi-aspect-ratio", NULL, NULL,
76 ASPECT_RATIO_TEXT, ASPECT_RATIO_LONGTEXT, true )
79 set_capability( "access_demux", 10 )
80 set_callbacks( Open, Close )
83 static int Demux ( demux_t * );
84 static int Control( demux_t *, int, va_list );
86 class DeckLinkCaptureDelegate;
91 IDeckLinkInput *p_input;
92 DeckLinkCaptureDelegate *p_delegate;
94 es_out_id_t *p_video_es;
95 es_out_id_t *p_audio_es;
98 int i_width, i_height, i_fps_num, i_fps_den;
99 uint32_t i_dominance_flags;
101 int i_rate, i_channels;
103 vlc_mutex_t frame_lock;
104 block_t *p_video_frame; // protected by <frame_lock>
105 block_t *p_audio_frame; // protected by <frame_lock>
106 vlc_cond_t has_frame; // related to <frame_lock>
109 class DeckLinkCaptureDelegate : public IDeckLinkInputCallback
112 DeckLinkCaptureDelegate( demux_t *p_demux ) : p_demux_(p_demux) {}
114 // FIXME: These leak.
115 virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, LPVOID *ppv) { return E_NOINTERFACE; }
116 virtual ULONG STDMETHODCALLTYPE AddRef(void) { return 1; }
117 virtual ULONG STDMETHODCALLTYPE Release(void) { return 1; }
119 virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents, IDeckLinkDisplayMode*, BMDDetectedVideoInputFormatFlags);
120 virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame*, IDeckLinkAudioInputPacket*);
126 HRESULT DeckLinkCaptureDelegate::VideoInputFormatChanged(BMDVideoInputFormatChangedEvents events, IDeckLinkDisplayMode *mode, BMDDetectedVideoInputFormatFlags)
128 msg_Dbg( p_demux_, "Video input format changed" );
132 HRESULT DeckLinkCaptureDelegate::VideoInputFrameArrived(IDeckLinkVideoInputFrame* videoFrame, IDeckLinkAudioInputPacket* audioFrame)
134 demux_sys_t *p_sys = p_demux_->p_sys;
135 block_t *p_video_frame = NULL;
136 block_t *p_audio_frame = NULL;
140 if( videoFrame->GetFlags() & bmdFrameHasNoInputSource )
142 msg_Warn( p_demux_, "No input signal detected" );
146 const int i_width = videoFrame->GetWidth();
147 const int i_height = videoFrame->GetHeight();
148 const int i_stride = videoFrame->GetRowBytes();
151 p_video_frame = block_New( p_demux_, i_width * i_height * i_bpp );
154 msg_Err( p_demux_, "Could not allocate memory for video frame" );
159 videoFrame->GetBytes( &frame_bytes );
160 for( int y = 0; y < i_height; ++y )
162 const uint8_t *src = (const uint8_t *)frame_bytes + i_stride * y;
163 uint8_t *dst = (uint8_t *)p_video_frame->p_buffer + i_width * i_bpp * y;
164 memcpy( dst, src, i_width * i_bpp );
167 BMDTimeValue stream_time, frame_duration;
168 videoFrame->GetStreamTime( &stream_time, &frame_duration, CLOCK_FREQ );
169 p_video_frame->i_flags = BLOCK_FLAG_TYPE_I | p_sys->i_dominance_flags;
170 if( p_sys->b_first_frame )
172 p_video_frame->i_flags |= BLOCK_FLAG_DISCONTINUITY;
173 p_sys->b_first_frame = false;
175 p_video_frame->i_pts = p_video_frame->i_dts = VLC_TS_0 + stream_time;
180 const int i_bytes = audioFrame->GetSampleFrameCount() * sizeof(int16_t) * p_sys->i_channels;
182 p_audio_frame = block_New( p_demux_, i_bytes );
185 msg_Err( p_demux_, "Could not allocate memory for audio frame" );
190 audioFrame->GetBytes( &frame_bytes );
191 memcpy( p_audio_frame->p_buffer, frame_bytes, i_bytes );
193 BMDTimeValue packet_time;
194 audioFrame->GetPacketTime( &packet_time, CLOCK_FREQ );
195 p_audio_frame->i_pts = p_audio_frame->i_dts = VLC_TS_0 + packet_time;
198 if( p_video_frame || p_audio_frame )
200 vlc_mutex_lock( &p_sys->frame_lock );
202 p_sys->p_video_frame = p_video_frame; // FIXME: leak
204 p_sys->p_audio_frame = p_audio_frame; // FIXME: leak
205 vlc_cond_signal( &p_sys->has_frame );
206 vlc_mutex_unlock( &p_sys->frame_lock );
212 static int Open( vlc_object_t *p_this )
214 demux_t *p_demux = (demux_t*)p_this;
217 /* Only when selected */
218 if( *p_demux->psz_access == '\0' )
222 p_demux->pf_demux = Demux;
223 p_demux->pf_control = Control;
224 p_demux->info.i_update = 0;
225 p_demux->info.i_title = 0;
226 p_demux->info.i_seekpoint = 0;
227 p_demux->p_sys = p_sys = (demux_sys_t*)calloc( 1, sizeof( demux_sys_t ) );
231 vlc_mutex_init( &p_sys->frame_lock );
232 vlc_cond_init( &p_sys->has_frame );
233 p_sys->p_video_frame = NULL;
235 IDeckLinkIterator *decklink_iterator = CreateDeckLinkIteratorInstance();
236 if( !decklink_iterator )
238 msg_Err( p_demux, "DeckLink drivers not found." );
239 // FIXME: Leak here and several other error paths.
244 result = decklink_iterator->Next( &p_sys->p_card );
248 msg_Err( p_demux, "No DeckLink PCI cards found" );
252 if( p_sys->p_card->QueryInterface( IID_IDeckLinkInput, (void**)&p_sys->p_input) != S_OK )
254 msg_Err( p_demux, "Card has no inputs" );
258 // Set up the video and audio sources.
259 IDeckLinkConfiguration *p_config;
260 if( p_sys->p_card->QueryInterface( IID_IDeckLinkConfiguration, (void**)&p_config) != S_OK )
262 msg_Err( p_demux, "Failed to get configuration interface" );
266 char *psz_tmp = var_CreateGetNonEmptyString( p_demux, "sdi-audio-connection" );
269 BMDAudioConnection conn;
270 if ( !strcmp( psz_tmp, "embedded" ) )
271 conn = bmdAudioConnectionEmbedded;
272 else if ( !strcmp( psz_tmp, "aesebu" ) )
273 conn = bmdAudioConnectionAESEBU;
274 else if ( !strcmp( psz_tmp, "analog" ) )
275 conn = bmdAudioConnectionAnalog;
278 msg_Err( p_demux, "Invalid --sdi-audio-connection specified; choose one of " \
279 "embedded, aesebu, or analog." );
284 msg_Dbg( p_demux, "Setting audio input format to 0x%x", conn);
285 result = p_config->SetAudioInputFormat( conn );
288 msg_Err( p_demux, "Failed to set audio input connection" );
293 // Get the list of display modes.
294 IDeckLinkDisplayModeIterator *p_display_iterator;
295 result = p_sys->p_input->GetDisplayModeIterator( &p_display_iterator );
298 msg_Err( p_demux, "Failed to enumerate display modes" );
302 char *mode_string = var_CreateGetString( p_demux, "sdi-mode" );
303 if( !mode_string || strlen( mode_string ) == 0 || strlen( mode_string ) > 4 ) {
304 msg_Err( p_demux, "Missing or invalid --sdi-mode string" );
308 // Pad the --sdi-mode string to four characters, so the user can specify e.g. "pal"
309 // without having to add the trailing space.
310 char mode_string_padded[5];
311 strcpy(mode_string_padded, " ");
312 for( int i = 0; i < strlen(mode_string); ++i )
313 mode_string_padded[i] = mode_string[i];
315 BMDDisplayMode wanted_mode_id;
316 memcpy( &wanted_mode_id, &mode_string_padded, sizeof(wanted_mode_id) );
318 bool b_found_mode = false;
322 IDeckLinkDisplayMode *p_display_mode;
323 result = p_display_iterator->Next( &p_display_mode );
324 if( result != S_OK || !p_display_mode )
329 char mode_id_text[5] = {0};
330 BMDDisplayMode mode_id = ntohl( p_display_mode->GetDisplayMode() );
331 memcpy( mode_id_text, &mode_id, sizeof(mode_id) );
333 const char *mode_name;
334 result = p_display_mode->GetName( &mode_name );
337 msg_Err( p_demux, "Failed to get display mode name" );
341 BMDTimeValue frame_duration, time_scale;
342 result = p_display_mode->GetFrameRate( &frame_duration, &time_scale );
345 msg_Err( p_demux, "Failed to get frame rate" );
349 const char *field_dominance;
350 uint32_t i_dominance_flags = 0;
351 switch( p_display_mode->GetFieldDominance() )
353 case bmdProgressiveFrame:
354 field_dominance = "";
356 case bmdProgressiveSegmentedFrame:
357 field_dominance = ", segmented";
359 case bmdLowerFieldFirst:
360 field_dominance = ", interlaced [BFF]";
361 i_dominance_flags = BLOCK_FLAG_BOTTOM_FIELD_FIRST;
363 case bmdUpperFieldFirst:
364 field_dominance = ", interlaced [TFF]";
365 i_dominance_flags = BLOCK_FLAG_TOP_FIELD_FIRST;
367 case bmdUnknownFieldDominance:
369 field_dominance = ", unknown field dominance";
373 msg_Dbg( p_demux, "Found mode '%s': %s (%dx%d, %.3f fps%s)",
374 mode_id_text, mode_name,
375 p_display_mode->GetWidth(), p_display_mode->GetHeight(),
376 double(time_scale) / frame_duration, field_dominance );
378 if( wanted_mode_id == mode_id )
381 p_sys->i_width = p_display_mode->GetWidth();
382 p_sys->i_height = p_display_mode->GetHeight();
383 p_sys->i_fps_num = time_scale;
384 p_sys->i_fps_den = frame_duration;
385 p_sys->i_dominance_flags = i_dominance_flags;
391 msg_Err( p_demux, "Unknown SDI mode specified. " \
392 "Run VLC with -v --verbose-objects=-all,+sdi " \
393 "to get a list of supported modes." );
397 result = p_sys->p_input->EnableVideoInput( htonl( wanted_mode_id ), bmdFormat8BitYUV, 0 );
400 msg_Err( p_demux, "Failed to enable video input" );
405 p_sys->i_rate = var_CreateGetInteger( p_demux, "sdi-audio-rate" );
406 p_sys->i_channels = var_CreateGetInteger( p_demux, "sdi-audio-channels" );
407 if( p_sys->i_rate > 0 && p_sys->i_channels > 0 )
409 result = p_sys->p_input->EnableAudioInput( p_sys->i_rate, bmdAudioSampleType16bitInteger, p_sys->i_channels );
412 msg_Err( p_demux, "Failed to enable audio input" );
417 p_sys->p_delegate = new DeckLinkCaptureDelegate( p_demux );
418 p_sys->p_input->SetCallback( p_sys->p_delegate );
420 result = p_sys->p_input->StartStreams();
423 msg_Err( p_demux, "Failed to start streams" );
427 /* Declare elementary streams */
428 es_format_t video_fmt;
429 es_format_Init( &video_fmt, VIDEO_ES, VLC_CODEC_UYVY );
430 video_fmt.video.i_width = p_sys->i_width;
431 video_fmt.video.i_height = p_sys->i_height;
432 video_fmt.video.i_sar_num = 1;
433 video_fmt.video.i_sar_den = 1;
434 video_fmt.video.i_frame_rate = p_sys->i_fps_num;
435 video_fmt.video.i_frame_rate_base = p_sys->i_fps_den;
436 video_fmt.i_bitrate = video_fmt.video.i_width * video_fmt.video.i_height * video_fmt.video.i_frame_rate * 2;
438 psz_tmp = var_CreateGetNonEmptyString( p_demux, "sdi-aspect-ratio" );
441 char *psz_denominator = strchr( psz_tmp, ':' );
442 if( psz_denominator )
444 *psz_denominator++ = '\0';
445 video_fmt.video.i_sar_num = atoi( psz_tmp ) * video_fmt.video.i_height;
446 video_fmt.video.i_sar_den = atoi( psz_denominator ) * video_fmt.video.i_width;
451 msg_Dbg( p_demux, "added new video es %4.4s %dx%d",
452 (char*)&video_fmt.i_codec, video_fmt.video.i_width, video_fmt.video.i_height );
453 p_sys->p_video_es = es_out_Add( p_demux->out, &video_fmt );
455 es_format_t audio_fmt;
456 es_format_Init( &audio_fmt, AUDIO_ES, VLC_CODEC_S16N );
457 audio_fmt.audio.i_channels = p_sys->i_channels;
458 audio_fmt.audio.i_rate = p_sys->i_rate;
459 audio_fmt.audio.i_bitspersample = 16;
460 audio_fmt.audio.i_blockalign = audio_fmt.audio.i_channels * audio_fmt.audio.i_bitspersample / 8;
461 audio_fmt.i_bitrate = audio_fmt.audio.i_channels * audio_fmt.audio.i_rate * audio_fmt.audio.i_bitspersample;
463 msg_Dbg( p_demux, "added new audio es %4.4s %dHz %dbpp %dch",
464 (char*)&audio_fmt.i_codec, audio_fmt.audio.i_rate, audio_fmt.audio.i_bitspersample, audio_fmt.audio.i_channels);
465 p_sys->p_audio_es = es_out_Add( p_demux->out, &audio_fmt );
467 p_sys->b_first_frame = true;
469 /* Update default_pts to a suitable value for access */
470 var_Create( p_demux, "sdi-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
475 static void Close( vlc_object_t *p_this )
477 demux_t *p_demux = (demux_t *)p_this;
478 demux_sys_t *p_sys = p_demux->p_sys;
483 static int Control( demux_t *p_demux, int i_query, va_list args )
490 /* Special for access_demux */
491 case DEMUX_CAN_PAUSE:
493 case DEMUX_CAN_CONTROL_PACE:
494 pb = (bool*)va_arg( args, bool * );
498 case DEMUX_GET_PTS_DELAY:
499 pi64 = (int64_t*)va_arg( args, int64_t * );
500 *pi64 = var_GetInteger( p_demux, "sdi-caching" ) * 1000;
504 pi64 = (int64_t*)va_arg( args, int64_t * );
505 *pi64 = mdate(); // FIXME
508 /* TODO implement others */
516 static int Demux( demux_t *p_demux )
518 demux_sys_t *p_sys = p_demux->p_sys;
519 block_t *p_video_block = NULL;
520 block_t *p_audio_block = NULL;
522 vlc_mutex_lock( &p_sys->frame_lock );
524 while( !p_sys->p_video_frame && !p_sys->p_audio_frame )
525 vlc_cond_wait( &p_sys->has_frame, &p_sys->frame_lock );
527 p_video_block = p_sys->p_video_frame;
528 p_sys->p_video_frame = NULL;
530 p_audio_block = p_sys->p_audio_frame;
531 p_sys->p_audio_frame = NULL;
533 vlc_mutex_unlock( &p_sys->frame_lock );
537 es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_video_block->i_pts );
538 es_out_Send( p_demux->out, p_sys->p_video_es, p_video_block );
543 es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_audio_block->i_pts );
544 es_out_Send( p_demux->out, p_sys->p_audio_es, p_audio_block );