Commit 4140a523 authored by Bill O'Shaughnessy's avatar Bill O'Shaughnessy Committed by Justin Ruggles
Browse files

AC-3 encoded volume is too high. Revert revision 7160:

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

Originally committed as revision 8444 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent d7645fb9
......@@ -1161,7 +1161,7 @@ static int AC3_encode_frame(AVCodecContext *avctx,
v = 14 - log2_tab(input_samples, N);
if (v < 0)
v = 0;
exp_samples[i][ch] = v - 10;
exp_samples[i][ch] = v - 9;
lshift_tab(input_samples, N, v);
/* do the MDCT */
......
......@@ -166,7 +166,7 @@ stddev: 10.98 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
dd68110cb7e5388392f89d5160d3a825 *./data/a-ac3.rm
aefe11ab5067621a1c674859d6413891 *./data/a-ac3.rm
98203 ./data/a-ac3.rm
1eea0440091a8f898c9efca99141456e *./data/a-g726.wav
24280 ./data/a-g726.wav
......
......@@ -5,7 +5,7 @@ ffmpeg regression test
786446e80ead936e5faa8f5908f19281 *./data/b-libav.asf
339775 ./data/b-libav.asf
./data/b-libav.asf CRC=0x74113749
1ad618e9fd318eb3483270cf9b9b3f43 *./data/b-libav.rm
1ce78eeb6881ffe5b649a9b5105de919 *./data/b-libav.rm
355405 ./data/b-libav.rm
bdb7484c68db722f66ba1630cf79844c *./data/b-libav.mpg
378880 ./data/b-libav.mpg
......
......@@ -166,7 +166,7 @@ stddev: 3.44 PSNR:37.39 bytes:7602176
83f8df5d5f84480566af548bb037fceb *./data/out.wav
stddev:9330.70 PSNR:16.92 bytes:1054720
stddev:4396.13 PSNR:23.46 bytes:1052672
dd68110cb7e5388392f89d5160d3a825 *./data/a-ac3.rm
aefe11ab5067621a1c674859d6413891 *./data/a-ac3.rm
98203 ./data/a-ac3.rm
1eea0440091a8f898c9efca99141456e *./data/a-g726.wav
24280 ./data/a-g726.wav
......
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