diff options
Diffstat (limited to 'libavcodec/xvmc.h')
| -rw-r--r-- | libavcodec/xvmc.h | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/libavcodec/xvmc.h b/libavcodec/xvmc.h index e46a9ba4e2..b871087780 100644 --- a/libavcodec/xvmc.h +++ b/libavcodec/xvmc.h @@ -58,17 +58,35 @@ struct xvmc_render_state { #endif //}@ -/** modified by calling application and the decoder */ -//@{ - int start_mv_blocks_num; ///< offset in the array for the current slice, updated by vo - int filled_mv_blocks_num; ///< processed mv block in this slice, changed by decoder + /** Offset in the mv array for the current slice: + - application - zeros it on get_buffer(). + successful draw_horiz_band() may increment it + with filled_mb_block_num or zero both. + - libavcodec - unchanged + */ + int start_mv_blocks_num; + + /** Processed mv blocks in this slice: + - application - zeros it on get_buffer() or after successful draw_horiz_band() + - libavcodec - increment with one of each stored MB + */ + int filled_mv_blocks_num; + + /** Used in add_mv_block, pointer to next free block + - application - zeroes it on get_buffer() and after successful draw_horiz_band() + - libvcodec - each macroblock increases it with the number of coded blocks in it. + */ + int next_free_data_block_num; - int next_free_data_block_num; ///< used in add_mv_block, pointer to next free block -//}@ /** extensions may be placed here */ #if LIBAVCODEC_VERSION_MAJOR < 53 //@{ - int state; ///< 0 - free, 1 - waiting to display, 2 - waiting for prediction + /** State - used to workaround limitations in MPlayer vo system. + 0 -Surface not used + 1 -Surface is still hold in application to be displayed or is still visible. + 2 -Surface is still hold in lavcodec buffer for prediction + */ + int state; void* p_osd_target_surface_render; ///< pointer to the surface where subpicture is rendered //}@ #endif |