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| author | Justin <justin.ruggles@gmail.com> | 2011-03-11 13:03:26 -0500 |
|---|---|---|
| committer | Justin Ruggles <justin.ruggles@gmail.com> | 2011-03-14 08:45:26 -0400 |
| commit | 323e6fead07c75f418e4b60704a4f437bb3483b2 (patch) | |
| tree | 14e0886587813468e232931cc8cee782b205b44a /tests | |
| parent | 6e7cf13b6b1d0e08969b64129b9022cc1171d875 (diff) | |
| download | ffmpeg-streaming-323e6fead07c75f418e4b60704a4f437bb3483b2.zip ffmpeg-streaming-323e6fead07c75f418e4b60704a4f437bb3483b2.tar.gz | |
ac3enc: do not right-shift fixed-point coefficients in the final MDCT stage.
This increases the accuracy of coefficients, leading to improved quality.
Rescaling of the coefficients to full 25-bit accuracy is done rather than
offsetting the exponent values. This requires coefficient scaling to be done
before determining the rematrixing strategy. Also, the rematrixing strategy
calculation must use 64-bit math to prevent overflow due to the higher
precision coefficients.
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/ref/acodec/ac3_fixed | 2 | ||||
| -rw-r--r-- | tests/ref/lavf/rm | 2 | ||||
| -rw-r--r-- | tests/ref/seek/ac3_rm | 22 |
3 files changed, 13 insertions, 13 deletions
diff --git a/tests/ref/acodec/ac3_fixed b/tests/ref/acodec/ac3_fixed index f32443d..4ef69ff 100644 --- a/tests/ref/acodec/ac3_fixed +++ b/tests/ref/acodec/ac3_fixed @@ -1,2 +1,2 @@ -07bd593823ebd721b3a32ef298bdfc20 *./tests/data/acodec/ac3.rm +b3a8f0a8809a58b2ece90744f06fff96 *./tests/data/acodec/ac3.rm 98751 ./tests/data/acodec/ac3.rm diff --git a/tests/ref/lavf/rm b/tests/ref/lavf/rm index b8bf220..53b1255 100644 --- a/tests/ref/lavf/rm +++ b/tests/ref/lavf/rm @@ -1,2 +1,2 @@ -d149fc272dfd21fb8908ee21d7b1651b *./tests/data/lavf/lavf.rm +7da378131db880bcf2e58305d54418ec *./tests/data/lavf/lavf.rm 346706 ./tests/data/lavf/lavf.rm diff --git a/tests/ref/seek/ac3_rm b/tests/ref/seek/ac3_rm index 07fcfa1..9b7db9a 100644 --- a/tests/ref/seek/ac3_rm +++ b/tests/ref/seek/ac3_rm @@ -4,28 +4,29 @@ ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 271 size: 556 ret: 0 st:-1 flags:1 ts: 1.894167 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 271 size: 556 ret: 0 st: 0 flags:0 ts: 0.788000 -ret: 0 st: 0 flags:1 dts:4160806.587000 pts:4160806.587000 pos: 3883 size: 116 +ret: 0 st: 0 flags:1 dts:12581.487000 pts:12581.487000 pos: 5822 size: 916 ret: 0 st: 0 flags:1 ts:-0.317000 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 271 size: 556 ret: 0 st:-1 flags:0 ts: 2.576668 -ret: 0 st: 0 flags:1 dts:4160806.587000 pts:4160806.587000 pos: 3883 size: 116 +ret: 0 st: 0 flags:1 dts:524.800000 pts:524.800000 pos: 6155 size: 244 ret:-1 st:-1 flags:1 ts: 1.470835 ret: 0 st: 0 flags:0 ts: 0.365000 -ret: 0 st: 0 flags:1 dts:4160806.587000 pts:4160806.587000 pos: 3883 size: 116 +ret: 0 st: 0 flags:1 dts:12581.487000 pts:12581.487000 pos: 5822 size: 916 ret: 0 st: 0 flags:1 ts:-0.741000 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 271 size: 556 ret:-1 st:-1 flags:0 ts: 2.153336 -ret:-1 st:-1 flags:1 ts: 1.047503 +ret: 0 st:-1 flags:1 ts: 1.047503 +ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 271 size: 556 ret: 0 st: 0 flags:0 ts:-0.058000 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 271 size: 556 -ret:-1 st: 0 flags:1 ts: 2.836000 +ret: 0 st: 0 flags:1 ts: 2.836000 +ret: 0 st: 0 flags:1 dts: 2.681000 pts: 2.681000 pos: 44105 size: 558 ret:-1 st:-1 flags:0 ts: 1.730004 ret: 0 st:-1 flags:1 ts: 0.624171 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 271 size: 556 ret: 0 st: 0 flags:0 ts:-0.482000 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 271 size: 556 -ret: 0 st: 0 flags:1 ts: 2.413000 -ret: 0 st: 0 flags:1 dts: 2.229000 pts: 2.229000 pos: 36705 size: 556 +ret:-1 st: 0 flags:1 ts: 2.413000 ret:-1 st:-1 flags:0 ts: 1.306672 ret: 0 st:-1 flags:1 ts: 0.200839 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 271 size: 556 @@ -33,13 +34,12 @@ ret: 0 st: 0 flags:0 ts:-0.905000 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 271 size: 556 ret:-1 st: 0 flags:1 ts: 1.989000 ret: 0 st:-1 flags:0 ts: 0.883340 -ret: 0 st: 0 flags:1 dts:4160806.587000 pts:4160806.587000 pos: 3883 size: 116 +ret: 0 st: 0 flags:1 dts:12581.487000 pts:12581.487000 pos: 5822 size: 916 ret: 0 st:-1 flags:1 ts:-0.222493 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 271 size: 556 -ret: 0 st: 0 flags:0 ts: 2.672000 -ret: 0 st: 0 flags:1 dts:6354.691000 pts:6354.691000 pos: 10783 size: 304 +ret:-1 st: 0 flags:0 ts: 2.672000 ret:-1 st: 0 flags:1 ts: 1.566000 ret: 0 st:-1 flags:0 ts: 0.460008 -ret: 0 st: 0 flags:1 dts:4160806.587000 pts:4160806.587000 pos: 3883 size: 116 +ret: 0 st: 0 flags:1 dts:12581.487000 pts:12581.487000 pos: 5822 size: 916 ret: 0 st:-1 flags:1 ts:-0.645825 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 271 size: 556 |
