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Fix for a problem with inverted sign of output data from ffvorbis decoder.

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Now the sign of audio samples in ffvorbis output is the same as in original
uncompressed audio file and this also allows the use of tiny_psnr to compare
ffvorbis with libvorbis/tremor.

Originally committed as revision 18878 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Siarhei Siamashka 2009-05-20 07:24:38 +00:00
parent 34aecf1c87
commit 7dfed8e1dc
1 changed files with 2 additions and 2 deletions
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4
libavcodec/vorbis_dec.c
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@ -896,8 +896,8 @@ static int vorbis_parse_id_hdr(vorbis_context *vc){
vc->saved = av_mallocz((vc->blocksize[1]/4)*vc->audio_channels * sizeof(float));
vc->previous_window=0;
ff_mdct_init(&vc->mdct[0], bl0, 1, 1.0);
ff_mdct_init(&vc->mdct[1], bl1, 1, 1.0);
ff_mdct_init(&vc->mdct[0], bl0, 1, -1.0);
ff_mdct_init(&vc->mdct[1], bl1, 1, -1.0);
AV_DEBUG(" vorbis version %d \n audio_channels %d \n audio_samplerate %d \n bitrate_max %d \n bitrate_nom %d \n bitrate_min %d \n blk_0 %d blk_1 %d \n ",
vc->version, vc->audio_channels, vc->audio_samplerate, vc->bitrate_maximum, vc->bitrate_nominal, vc->bitrate_minimum, vc->blocksize[0], vc->blocksize[1]);