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| author | Christophe Gisquet <christophe.gisquet@gmail.com> | 2015-01-30 19:43:03 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2015-02-01 02:01:55 +0100 |
| commit | cb335b3af2022ada18cd89cd503ca270c54129ac (patch) | |
| tree | 27e13af359314059c04b492183438c1bc4ab92af | |
| parent | 2a3b7a55b51116c968fc32d4b6a2f7cc35e677f2 (diff) | |
| download | ffmpeg-cb335b3af2022ada18cd89cd503ca270c54129ac.tar.gz | |
dvenc: fix 2x4x8 (interlaced) weight table
Since the decoder has been fixed to output something similar to
other implementations, the encoder weight table needed this fix.
Reference PSNR values on a progressive sequence (from tiny_psnr)
from a chained encoding and decoding:
Full progressive: stddev: 0.74 PSNR: 50.69 MAXDIFF: 19
Before: stddev: 1.43 PSNR: 44.97 MAXDIFF: 17
This patch: stddev: 0.76 PSNR: 50.44 MAXDIFF: 14
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/dvenc.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/libavcodec/dvenc.c b/libavcodec/dvenc.c index 7061508af4..2442f2bc94 100644 --- a/libavcodec/dvenc.c +++ b/libavcodec/dvenc.c @@ -232,14 +232,14 @@ static const int dv_weight_88[64] = { 170627, 165371, 160727, 153560, 160727, 144651, 144651, 136258, }; static const int dv_weight_248[64] = { - 131072, 242189, 257107, 237536, 229376, 200636, 242189, 223754, - 224969, 196781, 262144, 242189, 229376, 200636, 257107, 237536, - 211916, 185364, 235923, 217965, 229376, 211916, 206433, 180568, - 242189, 223754, 224969, 196781, 211916, 185364, 235923, 217965, - 200704, 175557, 222935, 205965, 200636, 185364, 195068, 170627, - 229376, 211916, 206433, 180568, 200704, 175557, 222935, 205965, - 175557, 153560, 188995, 174609, 165371, 144651, 200636, 185364, - 195068, 170627, 175557, 153560, 188995, 174609, 165371, 144651, + 131072, 262144, 257107, 257107, 242189, 242189, 242189, 242189, + 237536, 237536, 229376, 229376, 200636, 200636, 224973, 224973, + 223754, 223754, 235923, 235923, 229376, 229376, 217965, 217965, + 211916, 211916, 196781, 196781, 185364, 185364, 206433, 206433, + 211916, 211916, 222935, 222935, 200636, 200636, 205964, 205964, + 200704, 200704, 180568, 180568, 175557, 175557, 195068, 195068, + 185364, 185364, 188995, 188995, 174606, 174606, 175557, 175557, + 170627, 170627, 153560, 153560, 165371, 165371, 144651, 144651, }; static av_always_inline int dv_init_enc_block(EncBlockInfo *bi, uint8_t *data, |