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AC3 encoding volume fix, by Justin Ruggles jruggle earthlink net.

Originally committed as revision 5281 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Benjamin Larsson 2006-04-10 12:12:26 +00:00
parent f122deb45c
commit f1f7807abd
4 changed files with 4 additions and 4 deletions

View File

@ -1377,7 +1377,7 @@ static int AC3_encode_frame(AVCodecContext *avctx,
v = 14 - log2_tab(input_samples, N); v = 14 - log2_tab(input_samples, N);
if (v < 0) if (v < 0)
v = 0; v = 0;
exp_samples[i][ch] = v - 8; exp_samples[i][ch] = v - 9;
lshift_tab(input_samples, N, v); lshift_tab(input_samples, N, v);
/* do the MDCT */ /* do the MDCT */

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@ -150,7 +150,7 @@ stddev: 10.99 PSNR:27.30 bytes:7602176
6956f2c5185c4edbae648c614992a14b *./data/out.wav 6956f2c5185c4edbae648c614992a14b *./data/out.wav
stddev:9330.70 PSNR:16.92 bytes:527360 stddev:9330.70 PSNR:16.92 bytes:527360
stddev:4396.13 PSNR:23.46 bytes:526336 stddev:4396.13 PSNR:23.46 bytes:526336
4292b4f8e930e386e9c00799197615e5 *./data/a-ac3.rm aefe11ab5067621a1c674859d6413891 *./data/a-ac3.rm
98203 ./data/a-ac3.rm 98203 ./data/a-ac3.rm
9e6e66847a568ef4f1f229b0939d2aae *./data/a-g726.wav 9e6e66847a568ef4f1f229b0939d2aae *./data/a-g726.wav
24268 ./data/a-g726.wav 24268 ./data/a-g726.wav

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@ -5,7 +5,7 @@ ffmpeg regression test
6f4dca897d9a009009798e434fe5f651 *./data/b-libav.asf 6f4dca897d9a009009798e434fe5f651 *./data/b-libav.asf
342967 ./data/b-libav.asf 342967 ./data/b-libav.asf
./data/b-libav.asf CRC=0x41af1ed9 ./data/b-libav.asf CRC=0x41af1ed9
4509d6cc5523484d4557b2e5f06f5157 *./data/b-libav.rm 5275686385346789108ec4fdf06ecef8 *./data/b-libav.rm
360269 ./data/b-libav.rm 360269 ./data/b-libav.rm
90784a1b9589095f20fc6bcc0cc23cc4 *./data/b-libav.mpg 90784a1b9589095f20fc6bcc0cc23cc4 *./data/b-libav.mpg
387072 ./data/b-libav.mpg 387072 ./data/b-libav.mpg

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@ -150,7 +150,7 @@ stddev: 3.44 PSNR:37.38 bytes:7602176
6956f2c5185c4edbae648c614992a14b *./data/out.wav 6956f2c5185c4edbae648c614992a14b *./data/out.wav
stddev:9330.70 PSNR:16.92 bytes:527360 stddev:9330.70 PSNR:16.92 bytes:527360
stddev:4396.13 PSNR:23.46 bytes:526336 stddev:4396.13 PSNR:23.46 bytes:526336
4292b4f8e930e386e9c00799197615e5 *./data/a-ac3.rm aefe11ab5067621a1c674859d6413891 *./data/a-ac3.rm
98203 ./data/a-ac3.rm 98203 ./data/a-ac3.rm
9e6e66847a568ef4f1f229b0939d2aae *./data/a-g726.wav 9e6e66847a568ef4f1f229b0939d2aae *./data/a-g726.wav
24268 ./data/a-g726.wav 24268 ./data/a-g726.wav