Added FindKeyFrameForFrame() to the VideoTrackSupplier API

and the implementation to MediaTrackerVideoSupplier.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38438 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/mediaplayer/supplier/MediaTrackVideoSupplier.cpp

@@ -141,6 +141,17 @@ delete bitmap;
 }
 
 
+status_t
+MediaTrackVideoSupplier::FindKeyFrameForFrame(int64* frame)
+{
+	if (!fVideoTrack)
+		return B_NO_INIT;
+
+	return fVideoTrack->FindKeyFrameForFrame(frame,
+		B_MEDIA_SEEK_CLOSEST_BACKWARD);
+}
+
+
 status_t
 MediaTrackVideoSupplier::SeekToTime(bigtime_t* performanceTime)
 {

src/apps/mediaplayer/supplier/MediaTrackVideoSupplier.h

@@ -28,6 +28,7 @@ class MediaTrackVideoSupplier : public VideoTrackSupplier {
 									bigtime_t* performanceTime,
 									const media_format* format,
 									bool& wasCached);
+	virtual	status_t			FindKeyFrameForFrame(int64* frame);
 	virtual	status_t			SeekToTime(bigtime_t* performanceTime);
 	virtual	status_t			SeekToFrame(int64* frame);
 

src/apps/mediaplayer/supplier/VideoTrackSupplier.h

@@ -25,6 +25,7 @@ class VideoTrackSupplier {
 									bigtime_t* performanceTime,
 									const media_format* format,
 									bool& wasCached) = 0;
+	virtual	status_t			FindKeyFrameForFrame(int64* frame) = 0;
 	virtual	status_t			SeekToTime(bigtime_t* performanceTime) = 0;
 	virtual	status_t			SeekToFrame(int64* frame) = 0;