diff options
Diffstat (limited to 'gst-libs/ext/libav/libavcodec/cookdata.h')
-rw-r--r-- | gst-libs/ext/libav/libavcodec/cookdata.h | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/gst-libs/ext/libav/libavcodec/cookdata.h b/gst-libs/ext/libav/libavcodec/cookdata.h index e8d6ebf..c4c26fa 100644 --- a/gst-libs/ext/libav/libavcodec/cookdata.h +++ b/gst-libs/ext/libav/libavcodec/cookdata.h @@ -36,8 +36,8 @@ static const int expbits_tab[8] = { 52,47,43,37,29,22,16,0, }; -static const float dither_tab[8] = { - 0.0, 0.0, 0.0, 0.0, 0.0, 0.176777, 0.25, 0.707107, +static const float dither_tab[9] = { + 0.0, 0.0, 0.0, 0.0, 0.0, 0.176777, 0.25, 0.707107, 1.0 }; static const float quant_centroid_tab[7][14] = { @@ -510,23 +510,37 @@ static const int cplband[51] = { 19, }; -static const float cplscale2[3] = { +// The 1 and 0 at the beginning/end are to prevent overflows with +// bitstream-read indexes. E.g. if n_bits=5, we can access any +// index from [1, (1<<n_bits)] for the first decoupling coeff, +// and (1<<n_bits)-coeff1 as index for coeff2, i.e.: +// coeff1_idx = [1, 32], and coeff2_idx = [0, 31]. +// These values aren't part of the tables in the original binary. + +static const float cplscale2[5] = { +1, 0.953020632266998,0.70710676908493,0.302905440330505, +0, }; -static const float cplscale3[7] = { +static const float cplscale3[9] = { +1, 0.981279790401459,0.936997592449188,0.875934481620789,0.70710676908493, 0.482430040836334,0.349335819482803,0.192587479948997, +0, }; -static const float cplscale4[15] = { +static const float cplscale4[17] = { +1, 0.991486728191376,0.973249018192291,0.953020632266998,0.930133521556854, 0.903453230857849,0.870746195316315,0.826180458068848,0.70710676908493, 0.563405573368073,0.491732746362686,0.428686618804932,0.367221474647522, 0.302905440330505,0.229752898216248,0.130207896232605, +0, }; -static const float cplscale5[31] = { +static const float cplscale5[33] = { +1, 0.995926380157471,0.987517595291138,0.978726446628571,0.969505727291107, 0.95979779958725,0.949531257152557,0.938616216182709,0.926936149597168, 0.914336204528809,0.900602877140045,0.885426938533783,0.868331849575043, @@ -535,9 +549,11 @@ static const float cplscale5[31] = { 0.464778542518616,0.434642940759659,0.404955863952637,0.375219136476517, 0.344963222742081,0.313672333955765,0.280692428350449,0.245068684220314, 0.205169528722763,0.157508864998817,0.0901700109243393, +0, }; -static const float cplscale6[63] = { +static const float cplscale6[65] = { +1, 0.998005926609039,0.993956744670868,0.989822506904602,0.985598564147949, 0.981279790401459,0.976860702037811,0.972335040569305,0.967696130275726, 0.962936460971832,0.958047747612000,0.953020632266998,0.947844684123993, @@ -554,6 +570,7 @@ static const float cplscale6[63] = { 0.302905440330505,0.286608695983887,0.269728302955627,0.252119421958923, 0.233590632677078,0.213876649737358,0.192587479948997,0.169101938605309, 0.142307326197624,0.109772264957428,0.0631198287010193, +0, }; static const float* const cplscales[5] = { |