diff options
| author | Carl Hetherington <cth@carlh.net> | 2013-02-08 12:54:15 +0000 |
|---|---|---|
| committer | Carl Hetherington <cth@carlh.net> | 2013-02-08 12:54:15 +0000 |
| commit | 567abac0d7824f27b8fdcd6fb7da7e5ddae62a0f (patch) | |
| tree | ef163c0ab8ccefba62bc0301a9d82aeb22fb3dc8 /src/lib/video_decoder.cc | |
| parent | 748995a13c2a6758ef867b2b78b945342768bae7 (diff) | |
Some comments.
Diffstat (limited to 'src/lib/video_decoder.cc')
| -rw-r--r-- | src/lib/video_decoder.cc | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/lib/video_decoder.cc b/src/lib/video_decoder.cc index 0fa16bc32..c11b752ae 100644 --- a/src/lib/video_decoder.cc +++ b/src/lib/video_decoder.cc @@ -53,6 +53,10 @@ VideoDecoder::emit_video (shared_ptr<Image> image, double t) _last_source_time = t; } +/** Called by subclasses to repeat the last video frame that we + * passed to emit_video(). If emit_video hasn't yet been called, + * we will generate a black frame. + */ void VideoDecoder::repeat_last_video () { @@ -64,6 +68,11 @@ VideoDecoder::repeat_last_video () signal_video (_last_image, true, _last_subtitle); } +/** Emit our signal to say that some video data is ready. + * @param image Video frame. + * @param same true if `image' is the same as the last one we emitted. + * @param sub Subtitle for this frame, or 0. + */ void VideoDecoder::signal_video (shared_ptr<Image> image, bool same, shared_ptr<Subtitle> sub) { @@ -75,6 +84,11 @@ VideoDecoder::signal_video (shared_ptr<Image> image, bool same, shared_ptr<Subti _last_subtitle = sub; } +/** Set up the current subtitle. This will be put onto frames that + * fit within its time specification. s may be 0 to say that there + * is no current subtitle. + * @param s New current subtitle, or 0. + */ void VideoDecoder::emit_subtitle (shared_ptr<TimedSubtitle> s) { @@ -86,6 +100,9 @@ VideoDecoder::emit_subtitle (shared_ptr<TimedSubtitle> s) } } +/** Set which stream of subtitles we should use from our source. + * @param s Stream to use. + */ void VideoDecoder::set_subtitle_stream (shared_ptr<SubtitleStream> s) { |