diff options
Diffstat (limited to 'libavfilter/framesync2.h')
| -rw-r--r-- | libavfilter/framesync2.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/libavfilter/framesync2.h b/libavfilter/framesync2.h index 2b37636ebb..9a54b2b701 100644 --- a/libavfilter/framesync2.h +++ b/libavfilter/framesync2.h @@ -245,4 +245,29 @@ int ff_framesync2_get_frame(FFFrameSync *fs, unsigned in, AVFrame **rframe, */ int ff_framesync2_activate(FFFrameSync *fs); +/** + * Initialize a frame sync structure for dualinput. + * + * Compared to generic framesync, dualinput assumes the first input is the + * main one and the filtering is performed on it. The first input will be + * the only one with sync set and generic timeline support will just pass it + * unchanged when disabled. + * + * Equivalent to ff_framesync2_init(fs, parent, 2) then setting the time + * base, sync and ext modes on the inputs. + */ +int ff_framesync2_init_dualinput(FFFrameSync *fs, AVFilterContext *parent); + +/** + * @param f0 used to return the main frame + * @param f1 used to return the second frame, or NULL if disabled + * @return >=0 for success or AVERROR code + */ +int ff_framesync2_dualinput_get(FFFrameSync *fs, AVFrame **f0, AVFrame **f1); + +/** + * Same as ff_framesync2_dualinput_get(), but make sure that f0 is writable. + */ +int ff_framesync2_dualinput_get_writable(FFFrameSync *fs, AVFrame **f0, AVFrame **f1); + #endif /* AVFILTER_FRAMESYNC2_H */ |