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author | arpi <arpi@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2002-02-26 02:33:20 +0000 |
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committer | arpi <arpi@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2002-02-26 02:33:20 +0000 |
commit | 8bb7aebf009fb7e04cc8d52b7d4ca70c61900343 (patch) | |
tree | 679387fb636b6daf0a316761780eed7b212f3a4f | |
parent | b8cf61a944dab21b17fd917434129bf96b2a35f2 (diff) | |
download | mpv-8bb7aebf009fb7e04cc8d52b7d4ca70c61900343.tar.bz2 mpv-8bb7aebf009fb7e04cc8d52b7d4ca70c61900343.tar.xz |
early draft
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@4869 b3059339-0415-0410-9bf9-f77b7e298cf2
-rw-r--r-- | DOCS/tech/libmpcodecs.txt | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/DOCS/tech/libmpcodecs.txt b/DOCS/tech/libmpcodecs.txt new file mode 100644 index 0000000000..8301d05791 --- /dev/null +++ b/DOCS/tech/libmpcodecs.txt @@ -0,0 +1,34 @@ +# video decoder: + +int init(sh_video) -> loads codec dll, check if available and it accepts header if any + +int control(sh_video,cmd,param,...) -> various set/get/query functions + +int decode(sh_video,framedrop) -> decode frame, callbacks to config/get_surface + +int uninit(sh_video) + +# callbacks for video decoder: + +mpcodecs_config_vo(sh_video, w, h, preferred_outfmt){ + // it will be called by codec (either init() or decode()) when it gets + // enough info to know image dimensions, colorspaces and buffering type + + // this func should use control() to get/set parameters for a given outfmt + // (like supported buffering types, stride limitations, etc) or to + // query and select other colorspace. + +} + +// possible buffer setups: +- 1 static overwrite only (partial update type codecs: cvid, fli, vfw etc) +- 1+ independent temp writeonly (I-only mpegs, jpeg, mjpeg etc) +- 2+ static read/write (I+P mpegs) +- 2+ static read/write and 1+ temp writeonly (I+P+B mpegs) + +image_t* mpcodecs_get_surface(sh_video, flags){ +// flags: +// 0x1 - read (make it readable -> don't put to slow video ram) + +} + |