diff options
Diffstat (limited to 'libmpcodecs/mp_image.h')
| -rw-r--r-- | libmpcodecs/mp_image.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/libmpcodecs/mp_image.h b/libmpcodecs/mp_image.h index 6dbe3bfe02..887abc80b6 100644 --- a/libmpcodecs/mp_image.h +++ b/libmpcodecs/mp_image.h @@ -29,7 +29,14 @@ //--- buffer content restrictions: // set if buffer content shouldn't be modified: #define MP_IMGFLAG_PRESERVE 0x01 -// set if buffer content will be READ for next frame's MC: (I/P mpeg frames) +// set if buffer content will be READ. +// This can be e.g. for next frame's MC: (I/P mpeg frames) - +// then in combination with MP_IMGFLAG_PRESERVE - or it +// can be because a video filter or codec will read a significant +// amount of data while processing that frame (e.g. blending something +// onto the frame, MV based intra prediction). +// A frame marked like this should not be placed in to uncachable +// video RAM for example. #define MP_IMGFLAG_READABLE 0x02 //--- buffer width/stride/plane restrictions: (used for direct rendering) |