diff options
| author | Christophe Gisquet <christophe.gisquet@gmail.com> | 2014-10-25 11:19:22 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-10-25 19:01:45 +0200 |
| commit | 1086f09da30c8810638f31977d21d0a4a6ee67d8 (patch) | |
| tree | 6e81b7677110ab1068dc13ab9253d1fc3cb39c27 /libavcodec/dvdata.c | |
| parent | 80b29c2d0c0bade061f39672fb64924ea6bf3213 (diff) | |
| download | ffmpeg-1086f09da30c8810638f31977d21d0a4a6ee67d8.tar.gz | |
dv: more precise weight table for 8x8
It is derived from the actual equations of the specs. In
particular, it is closer to the inverse of what the encoder uses.
fate tests accordingly updated.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/dvdata.c')
| -rw-r--r-- | libavcodec/dvdata.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/libavcodec/dvdata.c b/libavcodec/dvdata.c index 007976e279..d7bee71f04 100644 --- a/libavcodec/dvdata.c +++ b/libavcodec/dvdata.c @@ -70,14 +70,14 @@ const uint8_t ff_dv_quant_shifts[22][4] = { const uint8_t ff_dv_quant_offset[4] = { 6, 3, 0, 1 }; const uint16_t ff_dv_iweight_88[64] = { - 32768, 16710, 16710, 17735, 17015, 17735, 18197, 18079, - 18079, 18197, 18725, 18559, 19196, 18559, 18725, 19284, - 19108, 19692, 19692, 19108, 19284, 21400, 19645, 20262, - 20214, 20262, 19645, 21400, 22733, 21845, 20867, 20815, - 20815, 20867, 21845, 22733, 23173, 23173, 21400, 21400, - 21400, 23173, 23173, 24600, 23764, 22017, 22017, 23764, - 24600, 25267, 24457, 22672, 24457, 25267, 25971, 25191, - 25191, 25971, 26715, 27962, 26715, 29642, 29642, 31536, + 32768, 16705, 16705, 17734, 17032, 17734, 18205, 18081, + 18081, 18205, 18725, 18562, 19195, 18562, 18725, 19266, + 19091, 19705, 19705, 19091, 19266, 21407, 19643, 20267, + 20228, 20267, 19643, 21407, 22725, 21826, 20853, 20806, + 20806, 20853, 21826, 22725, 23170, 23170, 21407, 21400, + 21407, 23170, 23170, 24598, 23786, 22018, 22018, 23786, + 24598, 25251, 24465, 22654, 24465, 25251, 25972, 25172, + 25172, 25972, 26722, 27969, 26722, 29692, 29692, 31521, }; const uint16_t ff_dv_iweight_248[64] = { 32768, 17735, 16710, 18079, 18725, 21400, 17735, 19196, |