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| author | Ivan Kalvachev <ikalvachev@gmail.com> | 2009-02-15 08:29:06 +0000 |
|---|---|---|
| committer | Ivan Kalvachev <ikalvachev@gmail.com> | 2009-02-15 08:29:06 +0000 |
| commit | 3fff9d92dcf88dc21ffcdb4f96a94195a4087085 (patch) | |
| tree | a22ba359a1fa1d13b7b5728339850b067f1ccd25 /libavcodec/xvmc.h | |
| parent | 1a90cf3c9884c9a2d6ee4bcee0f27332a861367e (diff) | |
A little better wording of doxygen comments.
Originally committed as revision 17313 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/xvmc.h')
| -rw-r--r-- | libavcodec/xvmc.h | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/libavcodec/xvmc.h b/libavcodec/xvmc.h index 4391590640..35fbe18dbe 100644 --- a/libavcodec/xvmc.h +++ b/libavcodec/xvmc.h @@ -31,10 +31,12 @@ #define AV_XVMC_STATE_OSD_SOURCE 4 /** this surface is needed for subpicture rendering */ #endif #define AV_XVMC_RENDER_MAGIC 0x1DC711C0 /**< magic value to ensure that regular pixel routines haven't corrupted the struct */ - // 1337 IDCT MCo +// 1337 IDCT MCo struct xvmc_render_state { -/** set by calling application */ +/** Set by calling application + Once set these values are not supposed to be modified. +*/ //@{ int magic_id; ///< used as a check against memory corruption by regular pixel routines or other API structure @@ -47,18 +49,18 @@ struct xvmc_render_state { XvMCSurface* p_surface; ///< pointer to rendered surface, never changed //}@ -/** set by the decoder - used by the XvMCRenderSurface function */ +/** Set by the decoder before calling draw_horiz_band() + need by the XvMCRenderSurface function */ //@{ XvMCSurface* p_past_surface; ///< pointer to the past surface XvMCSurface* p_future_surface; ///< pointer to the future prediction surface - unsigned int picture_structure; ///< top/bottom fields or frame + unsigned int picture_structure; ///< top/bottom field or frame unsigned int flags; ///< XVMC_SECOND_FIELD - 1st or 2nd field in the sequence //}@ /** Offset in the mv array for the current slice: - - application - zeros it on get_buffer(). + - application - zeros it on get_buffer(). successful draw_horiz_band() may increment it with filled_mb_block_num or zero both. - libavcodec - unchanged @@ -71,7 +73,7 @@ struct xvmc_render_state { */ int filled_mv_blocks_num; - /** Used in add_mv_block, pointer to next free block + /** Offset to the next free data block. The mv_blocks hold number pointing to the data blocks. - 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. */ @@ -80,10 +82,10 @@ struct xvmc_render_state { /** extensions may be placed here */ #if LIBAVCODEC_VERSION_MAJOR < 53 //@{ - /** 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 + /** State - used to workaround limitations in MPlayer video 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 libavcodec buffer for prediction */ int state; void* p_osd_target_surface_render; ///< pointer to the surface where subpicture is rendered |