* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-
#ifndef AVFILTER_VIDEO_H
#define AVFILTER_VIDEO_H
AVFilterBufferRef *ff_get_video_buffer(AVFilterLink *link, int perms,
int w, int h);
-/**
- * Notify the next filter of the start of a frame.
- *
- * @param link the output link the frame will be sent over
- * @param picref A reference to the frame about to be sent. The data for this
- * frame need only be valid once draw_slice() is called for that
- * portion. The receiving filter will free this reference when
- * it no longer needs it.
- *
- * @return >= 0 on success, a negative AVERROR on error. This function will
- * unreference picref in case of error.
- */
-int ff_start_frame(AVFilterLink *link, AVFilterBufferRef *picref);
-
-/**
- * Notify the next filter that the current frame has finished.
- *
- * @param link the output link the frame was sent over
- *
- * @return >= 0 on success, a negative AVERROR on error
- */
-int ff_end_frame(AVFilterLink *link);
-
-/**
- * Send a slice to the next filter.
- *
- * Slices have to be provided in sequential order, either in
- * top-bottom or bottom-top order. If slices are provided in
- * non-sequential order the behavior of the function is undefined.
- *
- * @param link the output link over which the frame is being sent
- * @param y offset in pixels from the top of the image for this slice
- * @param h height of this slice in pixels
- * @param slice_dir the assumed direction for sending slices,
- * from the top slice to the bottom slice if the value is 1,
- * from the bottom slice to the top slice if the value is -1,
- * for other values the behavior of the function is undefined.
- *
- * @return >= 0 on success, a negative AVERROR on error.
- */
-int ff_draw_slice(AVFilterLink *link, int y, int h, int slice_dir);
-
#endif /* AVFILTER_VIDEO_H */