#include <vlc_charset.h>
#include <vlc_fs.h>
+#include <arpa/inet.h>
+
+#include "DeckLinkAPI.h"
+#include "DeckLinkAPIDispatch.cpp"
+
static int Open ( vlc_object_t * );
static void Close( vlc_object_t * );
+#define MODE_TEXT N_("Desired input video mode")
+#define MODE_LONGTEXT N_( \
+ "Desired input video mode for SDI 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 SDI captures. This " \
set_description( N_("BlackMagic SDI input") )
set_category( CAT_INPUT )
set_subcategory( SUBCAT_INPUT_ACCESS )
-
+
+ add_string( "sdi-mode", "pal ", NULL,
+ MODE_TEXT, MODE_LONGTEXT, true )
add_integer( "sdi-caching", DEFAULT_PTS_DELAY / 1000, NULL,
CACHING_TEXT, CACHING_LONGTEXT, true )
static int Demux ( demux_t * );
static int Control( demux_t *, int, va_list );
+class DeckLinkCaptureDelegate;
+
struct demux_sys_t
{
- es_out_id_t *p_es;
+ 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_width, i_height, i_fps_num, i_fps_den;
+ // FIXME: field dominance
+
+ 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) {}
+
+ // FIXME: These leak.
+ virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, LPVOID *ppv) { return E_NOINTERFACE; }
+ virtual ULONG STDMETHODCALLTYPE AddRef(void) { return 1; }
+ virtual ULONG STDMETHODCALLTYPE Release(void) { return 1; }
+
+ virtual HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents, IDeckLinkDisplayMode*, BMDDetectedVideoInputFormatFlags);
+ virtual HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame*, IDeckLinkAudioInputPacket*);
+
+private:
+ 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;
+ 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 = VLC_TS_0 + stream_time;
+ }
+
+ if( audioFrame )
+ {
+ const int i_bytes = audioFrame->GetSampleFrameCount() * sizeof(int16_t) * 2;
+
+ p_audio_frame = block_New( p_demux_, i_bytes );
+ if( !p_audio_frame )
+ {
+ msg_Err( p_demux_, "Could not allocate memory for audio 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 = VLC_TS_0 + packet_time;
+ }
+
+ if( p_video_frame || p_audio_frame )
+ {
+ vlc_mutex_lock( &p_sys->frame_lock );
+ if( p_video_frame )
+ p_sys->p_video_frame = p_video_frame; // FIXME: leak
+ if( p_audio_frame )
+ p_sys->p_audio_frame = p_audio_frame; // FIXME: leak
+ 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;
if( !p_sys )
return VLC_ENOMEM;
- msg_Dbg( p_demux, "hello world" );
+ vlc_mutex_init( &p_sys->frame_lock );
+ vlc_cond_init( &p_sys->has_frame );
+ p_sys->p_video_frame = NULL;
+
+ IDeckLinkIterator *decklink_iterator = CreateDeckLinkIteratorInstance();
+ if( !decklink_iterator )
+ {
+ msg_Err( p_demux, "DeckLink drivers not found." );
+ // FIXME: Leak here and several other error paths.
+ return VLC_EGENERIC;
+ }
+
+ HRESULT result;
+ result = decklink_iterator->Next( &p_sys->p_card );
+
+ if( result != S_OK )
+ {
+ msg_Err( p_demux, "No DeckLink PCI cards found" );
+ return VLC_EGENERIC;
+ }
+
+ if( p_sys->p_card->QueryInterface( IID_IDeckLinkInput, (void**)&p_sys->p_input) != S_OK )
+ {
+ msg_Err( p_demux, "Card has no inputs" );
+ return VLC_EGENERIC;
+ }
+
+ 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" );
+ return VLC_EGENERIC;
+ }
+
+ char *mode_string = var_CreateGetString( p_demux, "sdi-mode" );
+ if( !mode_string || strlen( mode_string ) == 0 || strlen( mode_string ) > 4 ) {
+ msg_Err( p_demux, "Missing or invalid --sdi-mode string" );
+ 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.
+ char mode_string_padded[5];
+ strcpy(mode_string_padded, " ");
+ for( int i = 0; i < strlen(mode_string); ++i )
+ mode_string_padded[i] = mode_string[i];
+
+ BMDDisplayMode wanted_mode_id;
+ memcpy( &wanted_mode_id, &mode_string_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;
+ }
+
+ char mode_id_text[5] = {0};
+ BMDDisplayMode mode_id = ntohl( p_display_mode->GetDisplayMode() );
+ memcpy( mode_id_text, &mode_id, sizeof(mode_id) );
+
+ const char *mode_name;
+ result = p_display_mode->GetName( &mode_name );
+ if( result != S_OK )
+ {
+ msg_Err( p_demux, "Failed to get display mode name" );
+ return VLC_EGENERIC;
+ }
+
+ 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" );
+ return VLC_EGENERIC;
+ }
+
+ const char *field_dominance;
+ switch( p_display_mode->GetFieldDominance() )
+ {
+ case bmdProgressiveFrame:
+ field_dominance = "";
+ break;
+ case bmdProgressiveSegmentedFrame:
+ field_dominance = ", segmented";
+ break;
+ case bmdLowerFieldFirst:
+ field_dominance = ", interlaced [BFF]";
+ break;
+ case bmdUpperFieldFirst:
+ field_dominance = ", interlaced [TFF]";
+ break;
+ case bmdUnknownFieldDominance:
+ default:
+ field_dominance = ", unknown field dominance";
+ break;
+ }
+
+ char buf[256];
+ sprintf( buf, "Found mode '%s': %s (%dx%d, %.3f fps%s)",
+ mode_id_text, mode_name,
+ p_display_mode->GetWidth(), p_display_mode->GetHeight(),
+ double(time_scale) / frame_duration, field_dominance );
+ msg_Dbg( p_demux, buf );
+
+ 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;
+ }
+ }
+
+ 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." );
+ return VLC_EGENERIC;
+ }
+
+ 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" );
+ return VLC_EGENERIC;
+ }
+
+ result = p_sys->p_input->EnableAudioInput( 48000, bmdAudioSampleType16bitInteger, 2 );
+ if( result != S_OK )
+ {
+ msg_Err( p_demux, "Failed to enable audio input" );
+ return VLC_EGENERIC;
+ }
+
+ 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" );
+ return VLC_EGENERIC;
+ }
/* Declare elementary streams */
- es_format_t fmt;
- es_format_Init( &fmt, VIDEO_ES, VLC_CODEC_YUYV );
- fmt.video.i_width = 720;
- fmt.video.i_height = 576;
- fmt.video.i_sar_num = 1;
- fmt.video.i_sar_den = 1;
+ 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 = 16 * video_fmt.video.i_height;
+ video_fmt.video.i_sar_den = 9 * video_fmt.video.i_width;
+ 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;
msg_Dbg( p_demux, "added new video es %4.4s %dx%d",
- (char*)&fmt.i_codec, fmt.video.i_width, fmt.video.i_height );
- p_sys->p_es = es_out_Add( p_demux->out, &fmt );
+ (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 = 2;
+ audio_fmt.audio.i_rate = 48000;
+ 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 );
+
+ 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 );
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;
- // FIXME
+ vlc_mutex_unlock( &p_sys->frame_lock );
+
+ if( p_video_block )
+ {
+ 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 )
+ {
+ 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 / blobdiff