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bring AC3 encoder output up to input volume level

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patch by Bill O'Shaughnessy % bill P oshaughnessy A gmail.com %
+ reg tests update gruntwork by me
Original thread:
date: Nov 21, 2006 11:36 PM
subject: [Ffmpeg-devel] Simpler Patch to bring AC3 encoder output up to input level

Originally committed as revision 7160 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Bill O'Shaughnessy 2006-11-23 22:21:01 +00:00 committed by Guillaume Poirier
parent 6e8c46b7e3
commit 3e954443dd
4 changed files with 4 additions and 4 deletions
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2
libavcodec/ac3enc.c
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@ -1379,7 +1379,7 @@ static int AC3_encode_frame(AVCodecContext *avctx,
v = 14 - log2_tab(input_samples, N);
if (v < 0)
v = 0;
exp_samples[i][ch] = v - 9;
exp_samples[i][ch] = v - 10;
lshift_tab(input_samples, N, v);
/* do the MDCT */

2
tests/ffmpeg.regression.ref
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@ -158,7 +158,7 @@ stddev: 10.99 PSNR:27.30 bytes:7602176
83f8df5d5f84480566af548bb037fceb *./data/out.wav
stddev:9330.70 PSNR:16.92 bytes:1054720
stddev:4396.13 PSNR:23.46 bytes:1052672
aefe11ab5067621a1c674859d6413891 *./data/a-ac3.rm
dd68110cb7e5388392f89d5160d3a825 *./data/a-ac3.rm
98203 ./data/a-ac3.rm
9e6e66847a568ef4f1f229b0939d2aae *./data/a-g726.wav
24268 ./data/a-g726.wav

2
tests/libav.regression.ref
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@ -5,7 +5,7 @@ ffmpeg regression test
bac6c5f50f3ca5db6e2ef6eaccf1d4f1 *./data/b-libav.asf
342967 ./data/b-libav.asf
./data/b-libav.asf CRC=0x94d219de
5275686385346789108ec4fdf06ecef8 *./data/b-libav.rm
3f63f396a3e9f08cdb5c30b4ef3a2436 *./data/b-libav.rm
360269 ./data/b-libav.rm
90784a1b9589095f20fc6bcc0cc23cc4 *./data/b-libav.mpg
387072 ./data/b-libav.mpg

2
tests/rotozoom.regression.ref
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@ -158,7 +158,7 @@ stddev: 3.44 PSNR:37.38 bytes:7602176
83f8df5d5f84480566af548bb037fceb *./data/out.wav
stddev:9330.70 PSNR:16.92 bytes:1054720
stddev:4396.13 PSNR:23.46 bytes:1052672
aefe11ab5067621a1c674859d6413891 *./data/a-ac3.rm
dd68110cb7e5388392f89d5160d3a825 *./data/a-ac3.rm
98203 ./data/a-ac3.rm
9e6e66847a568ef4f1f229b0939d2aae *./data/a-g726.wav
24268 ./data/a-g726.wav