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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/aacenc.c
parent3ac56e28b0a3fc84ccac9ac7e359f0f29567f8a0 (diff)
downloadffmpeg-7d485f165f7f6313002da1fe67c2742f0fbb16c9.tar.gz
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/aacenc.c')
-rw-r--r--libavcodec/aacenc.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/aacenc.c b/libavcodec/aacenc.c
index cdc8ba0405..5537b7eac4 100644
--- a/libavcodec/aacenc.c
+++ b/libavcodec/aacenc.c
@@ -214,8 +214,8 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)
s->samplerate_index = i;
dsputil_init(&s->dsp, avctx);
- ff_mdct_init(&s->mdct1024, 11, 0);
- ff_mdct_init(&s->mdct128, 8, 0);
+ ff_mdct_init(&s->mdct1024, 11, 0, 1.0);
+ ff_mdct_init(&s->mdct128, 8, 0, 1.0);
// window init
ff_kbd_window_init(ff_aac_kbd_long_1024, 4.0, 1024);
ff_kbd_window_init(ff_aac_kbd_short_128, 6.0, 128);