From 7fade368d5aa68c7d2b4b91746a8a1a17b9d01b9 Mon Sep 17 00:00:00 2001 From: Ivan Kalvachev Date: Sat, 26 Jul 2003 01:34:32 +0000 Subject: [PATCH] initial XvMC support, define common packet for decoder <-> libXvMC communication Originally committed as revision 2086 to svn://svn.ffmpeg.org/ffmpeg/trunk --- xvmc_render.h | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 xvmc_render.h diff --git a/xvmc_render.h b/xvmc_render.h new file mode 100644 index 0000000000..2130d4412d --- /dev/null +++ b/xvmc_render.h @@ -0,0 +1,47 @@ +#include +#include +#include +#include +#include +#include + + +//the surface should be shown, video driver manipulate this +#define MP_XVMC_STATE_DISPLAY_PENDING 1 +//the surface is needed for prediction, codec manipulate this +#define MP_XVMC_STATE_PREDICTION 2 +// 1337 IDCT MCo +#define MP_XVMC_RENDER_MAGIC 0x1DC711C0 + +typedef struct{ +//these are not changed by decoder! + int magic; + + short * data_blocks; + XvMCMacroBlock * mv_blocks; + int total_number_of_mv_blocks; + int total_number_of_data_blocks; + int mc_type;//XVMC_MPEG1/2/4,XVMC_H263 without XVMC_IDCT + int idct;//does we use IDCT acceleration? + int chroma_format;//420,422,444 + int unsigned_intra;//+-128 for intra pictures after clip + int reserved1[13];//future extenstions (e.g. gmc,qpel) + XvMCSurface* p_surface;//pointer to rendered surface, never changed + +//these are changed by decoder +//used by 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 flags;//XVMC_SECOND_FIELD - 1'st or 2'd field in the sequence + unsigned int display_flags; //1,2 or 1+2 fields for XvMCPutSurface, + +//these are internal communication one + int state;//0-free,1 Waiting to Display,2 Waiting for prediction + 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,change by decoder + + int next_free_data_block_num;//used in add_mv_block, pointer to next free block + +} xvmc_render_state_t;