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 "DeckLinkAPI.h"
21 #include "DeckLinkAPIDispatch.cpp"
23 static int Open ( vlc_object_t * );
24 static void Close( vlc_object_t * );
26 #define CACHING_TEXT N_("Caching value in ms")
27 #define CACHING_LONGTEXT N_( \
28 "Caching value for SDI captures. This " \
29 "value should be set in milliseconds." )
32 set_shortname( N_("SDI") )
33 set_description( N_("BlackMagic SDI input") )
34 set_category( CAT_INPUT )
35 set_subcategory( SUBCAT_INPUT_ACCESS )
37 add_integer( "sdi-caching", DEFAULT_PTS_DELAY / 1000, NULL,
38 CACHING_TEXT, CACHING_LONGTEXT, true )
41 set_capability( "access_demux", 10 )
42 set_callbacks( Open, Close )
45 static int Demux ( demux_t * );
46 static int Control( demux_t *, int, va_list );
48 class DeckLinkCaptureDelegate;
53 IDeckLinkInput *p_input;
54 DeckLinkCaptureDelegate *p_delegate;
58 block_t *p_frame; // protected by <lock>
61 class DeckLinkCaptureDelegate : public IDeckLinkInputCallback
64 DeckLinkCaptureDelegate( demux_t *p_demux ) : p_demux_(p_demux) {}
67 virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, LPVOID *ppv) { return E_NOINTERFACE; }
68 virtual ULONG STDMETHODCALLTYPE AddRef(void) { return 1; }
69 virtual ULONG STDMETHODCALLTYPE Release(void) { return 1; }
71 virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents, IDeckLinkDisplayMode*, BMDDetectedVideoInputFormatFlags);
72 virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame*, IDeckLinkAudioInputPacket*);
78 HRESULT DeckLinkCaptureDelegate::VideoInputFormatChanged(BMDVideoInputFormatChangedEvents events, IDeckLinkDisplayMode *mode, BMDDetectedVideoInputFormatFlags)
80 msg_Dbg( p_demux_, "Video input format changed" );
84 HRESULT DeckLinkCaptureDelegate::VideoInputFrameArrived(IDeckLinkVideoInputFrame* videoFrame, IDeckLinkAudioInputPacket* audioFrame)
86 demux_sys_t *p_sys = p_demux_->p_sys;
89 if (videoFrame->GetFlags() & bmdFrameHasNoInputSource) {
90 msg_Warn( p_demux_, "No input signal detected" );
94 msg_Dbg( p_demux_, "Received a frame" );
97 p_frame = block_New( p_demux_, 720 * 576 * 3 );
99 msg_Err( p_demux_, "Could not allocate memory for frame" );
104 videoFrame->GetBytes( &frame_bytes );
105 memcpy( p_frame->p_buffer, frame_bytes, 720 * 576 * 3 );
107 BMDTimeValue stream_time, frame_duration;
108 videoFrame->GetStreamTime( &stream_time, &frame_duration, 1000000 );
109 p_frame->i_pts = stream_time;
111 vlc_mutex_lock( &p_sys->lock );
112 p_sys->p_frame = p_frame; // FIXME: leak
113 vlc_mutex_unlock( &p_sys->lock );
119 static int Open( vlc_object_t *p_this )
121 demux_t *p_demux = (demux_t*)p_this;
124 /* Only when selected */
125 if( *p_demux->psz_access == '\0' )
129 p_demux->pf_demux = Demux;
130 p_demux->pf_control = Control;
131 p_demux->info.i_update = 0;
132 p_demux->info.i_title = 0;
133 p_demux->info.i_seekpoint = 0;
134 p_demux->p_sys = p_sys = (demux_sys_t*)calloc( 1, sizeof( demux_sys_t ) );
138 vlc_mutex_init( &p_sys->lock );
139 p_sys->p_frame = NULL;
141 IDeckLinkIterator *decklink_iterator = CreateDeckLinkIteratorInstance();
142 if ( !decklink_iterator ) {
143 msg_Err( p_demux, "DeckLink drivers not found." );
144 // FIXME: Leak here and several other error paths.
149 result = decklink_iterator->Next( &p_sys->p_card );
151 if ( result != S_OK ) {
152 msg_Err( p_demux, "No DeckLink PCI cards found" );
156 if ( p_sys->p_card->QueryInterface(IID_IDeckLinkInput, (void**)&p_sys->p_input) != S_OK ) {
157 msg_Err( p_demux, "Card has no inputs" );
161 p_sys->p_delegate = new DeckLinkCaptureDelegate( p_demux );
162 p_sys->p_input->SetCallback( p_sys->p_delegate );
164 result = p_sys->p_input->EnableVideoInput(bmdModePAL, bmdFormat8BitYUV, 0);
165 if ( result != S_OK ) {
166 msg_Err( p_demux, "Failed to enable video input" );
171 result = p_sys->p_input->StartStreams();
172 if ( result != S_OK ) {
173 msg_Err( p_demux, "Failed to start streams" );
177 /*eDeclare elementary streams */
179 es_format_Init( &fmt, VIDEO_ES, VLC_CODEC_YUYV );
180 fmt.video.i_width = 720;
181 fmt.video.i_height = 576;
182 fmt.video.i_sar_num = 1;
183 fmt.video.i_sar_den = 1;
185 msg_Dbg( p_demux, "added new video es %4.4s %dx%d",
186 (char*)&fmt.i_codec, fmt.video.i_width, fmt.video.i_height );
187 p_sys->p_es = es_out_Add( p_demux->out, &fmt );
189 /* Update default_pts to a suitable value for access */
190 var_Create( p_demux, "sdi-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
195 static void Close( vlc_object_t *p_this )
197 demux_t *p_demux = (demux_t *)p_this;
198 demux_sys_t *p_sys = p_demux->p_sys;
203 static int Control( demux_t *p_demux, int i_query, va_list args )
210 /* Special for access_demux */
211 case DEMUX_CAN_PAUSE:
213 case DEMUX_CAN_CONTROL_PACE:
214 pb = (bool*)va_arg( args, bool * );
218 case DEMUX_GET_PTS_DELAY:
219 pi64 = (int64_t*)va_arg( args, int64_t * );
220 *pi64 = var_GetInteger( p_demux, "sdi-caching" ) * 1000;
224 pi64 = (int64_t*)va_arg( args, int64_t * );
225 *pi64 = mdate(); // FIXME
228 /* TODO implement others */
236 static int Demux( demux_t *p_demux )
238 demux_sys_t *p_sys = p_demux->p_sys;
240 vlc_mutex_lock( &p_sys->lock );
241 block_t *p_block = p_sys->p_frame;
242 p_sys->p_frame = NULL;
243 vlc_mutex_unlock( &p_sys->lock );
246 msg_Dbg( p_demux, "Sending frame" );
247 es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_block->i_pts );
248 es_out_Send( p_demux->out, p_sys->p_es, p_block );
250 usleep(50000); // FIXME