ntsc fixes and service doco for discussion

[melted] / mlt / src / modules / ffmpeg / filter_ffmpeg_dub.c

diff --git a/mlt/src/modules/ffmpeg/filter_ffmpeg_dub.c b/mlt/src/modules/ffmpeg/filter_ffmpeg_dub.c
index 3ba9932..652354b 100644 (file)
--- a/mlt/src/modules/ffmpeg/filter_ffmpeg_dub.c
+++ b/mlt/src/modules/ffmpeg/filter_ffmpeg_dub.c
@@ -38,10 +38,10 @@ static int filter_get_audio( mlt_frame frame, int16_t **buffer, mlt_audio_format
        mlt_properties producer_properties = mlt_producer_properties( producer );
 
        // Get the original get_audio
-       int ( *get_audio )( mlt_frame, int16_t **, mlt_audio_format *, int *, int *, int * ) = mlt_properties_get_data( frame_properties, "get_audio", NULL );
+       frame->get_audio = mlt_properties_get_data( frame_properties, "get_audio", NULL );
 
        // Call the original get_audio
-       get_audio( frame, buffer, format, frequency, channels, samples );
+       mlt_frame_get_audio( frame, buffer, format, frequency, channels, samples );
 
        // Now if our producer is still producing, override the audio
        if ( !mlt_properties_get_int( producer_properties, "end_of_clip" ) )
@@ -52,6 +52,9 @@ static int filter_get_audio( mlt_frame frame, int16_t **buffer, mlt_audio_format
                // We need a frame from the producer
                mlt_frame producer_frame;
 
+               // Set the FPS
+               mlt_properties_set_double( producer_properties, "fps", mlt_properties_get_double( frame_properties, "fps" ) );
+
                // Seek to the position
                mlt_producer_seek_frame( producer, ( int64_t )position );
 
@@ -88,14 +91,22 @@ static mlt_frame filter_process( mlt_filter this, mlt_frame frame )
        // Obtain the frame properties
        mlt_properties frame_properties = mlt_frame_properties( frame );
        
-       // Backup the original get_audio (it's still needed)
-       mlt_properties_set_data( frame_properties, "get_audio", frame->get_audio, 0, NULL, NULL );
+       // Get the producer properties
+       mlt_properties producer_properties = mlt_producer_properties( producer );
 
-       // Pass the producer on the frame
-       mlt_properties_set_data( frame_properties, "producer", producer, 0, NULL, NULL );
+       // Only do this if we have not reached end of clip and ffmpeg_dub has not already been done
+       if ( !mlt_properties_get_int( producer_properties, "end_of_clip" ) &&
+                mlt_properties_get_data( frame_properties, "get_audio", NULL ) == NULL )
+       {
+               // Backup the original get_audio (it's still needed)
+               mlt_properties_set_data( frame_properties, "get_audio", frame->get_audio, 0, NULL, NULL );
+
+               // Pass the producer on the frame
+               mlt_properties_set_data( frame_properties, "producer", producer, 0, NULL, NULL );
 
-       // Override the get_audio method
-       frame->get_audio = filter_get_audio;
+               // Override the get_audio method
+               frame->get_audio = filter_get_audio;
+       }
 
        return frame;
 }