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authorSiarhei Siamashka <siarhei.siamashka@gmail.com>2009-05-16 14:17:08 +0000
committerSiarhei Siamashka <siarhei.siamashka@gmail.com>2009-05-16 14:17:08 +0000
commit7d485f165f7f6313002da1fe67c2742f0fbb16c9 (patch)
tree87e68249904f3c5bc7dcfc05df2eea10fd318ea2 /libavcodec/dca.c
parent3ac56e28b0a3fc84ccac9ac7e359f0f29567f8a0 (diff)
Support for getting (i)MDCT output multiplied by a constant scaling factor.
Scaling (i)MDCT output has no runtime overhead and can be used to improve performance of audio codecs. All the changes are only needed in 'ff_mdct_init' function and slow down initialization a bit. Originally committed as revision 18855 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/dca.c')
-rw-r--r--libavcodec/dca.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/dca.c b/libavcodec/dca.c
index 1529fdd6b8..b42d3df083 100644
--- a/libavcodec/dca.c
+++ b/libavcodec/dca.c
@@ -1318,7 +1318,7 @@ static av_cold int dca_decode_init(AVCodecContext * avctx)
dca_init_vlcs();
dsputil_init(&s->dsp, avctx);
- ff_mdct_init(&s->imdct, 6, 1);
+ ff_mdct_init(&s->imdct, 6, 1, 1.0);
for(i = 0; i < 6; i++)
s->samples_chanptr[i] = s->samples + i * 256;