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| author | Jason Garrett-Glaser <darkshikari@gmail.com> | 2009-12-06 15:33:48 +0000 |
|---|---|---|
| committer | Carl Eugen Hoyos <cehoyos@rainbow.studorg.tuwien.ac.at> | 2009-12-06 15:33:48 +0000 |
| commit | 50ba3fd7133e0b57216a9a1c2b8a1300fa1f8434 (patch) | |
| tree | cc2d41bc58a92aaf8a050a59892123e5ae487f6d /libavcodec | |
| parent | c11cb375207751ff1defc0a0493efe0d63a92651 (diff) | |
| download | ffmpeg-50ba3fd7133e0b57216a9a1c2b8a1300fa1f8434.tar.gz | |
Faster checks in reverse_dc_prediction.
Patch by Dark Shikari
Originally committed as revision 20750 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/vp3.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c index cc5bc3c01f..f0fe9c13a9 100644 --- a/libavcodec/vp3.c +++ b/libavcodec/vp3.c @@ -1233,7 +1233,6 @@ static int unpack_dct_coeffs(Vp3DecodeContext *s, GetBitContext *gb) */ #define COMPATIBLE_FRAME(x) \ (compatible_frame[s->all_fragments[x].coding_method] == current_frame_type) -#define FRAME_CODED(x) (s->all_fragments[x].coding_method != MODE_COPY) #define DC_COEFF(u) (s->coeffs[u].index ? 0 : s->coeffs[u].coeff) //FIXME do somethin to simplify this static void reverse_dc_prediction(Vp3DecodeContext *s, @@ -1290,7 +1289,7 @@ static void reverse_dc_prediction(Vp3DecodeContext *s, * from other INTRA blocks. There are 2 golden frame coding types; * blocks encoding in these modes can only predict from other blocks * that were encoded with these 1 of these 2 modes. */ - static const unsigned char compatible_frame[8] = { + static const unsigned char compatible_frame[9] = { 1, /* MODE_INTER_NO_MV */ 0, /* MODE_INTRA */ 1, /* MODE_INTER_PLUS_MV */ @@ -1298,7 +1297,8 @@ static void reverse_dc_prediction(Vp3DecodeContext *s, 1, /* MODE_INTER_PRIOR_MV */ 2, /* MODE_USING_GOLDEN */ 2, /* MODE_GOLDEN_MV */ - 1 /* MODE_INTER_FOUR_MV */ + 1, /* MODE_INTER_FOUR_MV */ + 3 /* MODE_COPY */ }; int current_frame_type; @@ -1326,24 +1326,24 @@ static void reverse_dc_prediction(Vp3DecodeContext *s, if(x){ l= i-1; vl = DC_COEFF(l); - if(FRAME_CODED(l) && COMPATIBLE_FRAME(l)) + if(COMPATIBLE_FRAME(l)) transform |= PL; } if(y){ u= i-fragment_width; vu = DC_COEFF(u); - if(FRAME_CODED(u) && COMPATIBLE_FRAME(u)) + if(COMPATIBLE_FRAME(u)) transform |= PU; if(x){ ul= i-fragment_width-1; vul = DC_COEFF(ul); - if(FRAME_CODED(ul) && COMPATIBLE_FRAME(ul)) + if(COMPATIBLE_FRAME(ul)) transform |= PUL; } if(x + 1 < fragment_width){ ur= i-fragment_width+1; vur = DC_COEFF(ur); - if(FRAME_CODED(ur) && COMPATIBLE_FRAME(ur)) + if(COMPATIBLE_FRAME(ur)) transform |= PUR; } } |