ffmpeg | branch: master | Anton Khirnov <an...@khirnov.net> | Sat Jun 25 14:48:47 2016 +0200| [5fcae3b3f93fd02b3d1e009b9d9b17410fca9498] | committer: Anton Khirnov
hwcontext: clarify the behaviour of transfer_data() for cropped frames > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5fcae3b3f93fd02b3d1e009b9d9b17410fca9498 --- libavutil/hwcontext.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/libavutil/hwcontext.h b/libavutil/hwcontext.h index f15cf7c..0b12fe2 100644 --- a/libavutil/hwcontext.h +++ b/libavutil/hwcontext.h @@ -318,6 +318,14 @@ int av_hwframe_get_buffer(AVBufferRef *hwframe_ctx, AVFrame *frame, int flags); * If dst->format is set, then this format will be used, otherwise (when * dst->format is AV_PIX_FMT_NONE) the first acceptable format will be chosen. * + * The two frames must have matching allocated dimensions (i.e. equal to + * AVHWFramesContext.width/height), since not all device types support + * transferring a sub-rectangle of the whole surface. The display dimensions + * (i.e. AVFrame.width/height) may be smaller than the allocated dimensions, but + * also have to be equal for both frames. When the display dimensions are + * smaller than the allocated dimensions, the content of the padding in the + * destination frame is unspecified. + * * @param dst the destination frame. dst is not touched on failure. * @param src the source frame. * @param flags currently unused, should be set to zero _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
