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| author | Siarhei Siamashka <siarhei.siamashka@gmail.com> | 2009-05-16 14:17:08 +0000 |
|---|---|---|
| committer | Siarhei Siamashka <siarhei.siamashka@gmail.com> | 2009-05-16 14:17:08 +0000 |
| commit | 7d485f165f7f6313002da1fe67c2742f0fbb16c9 (patch) | |
| tree | 87e68249904f3c5bc7dcfc05df2eea10fd318ea2 /libavcodec/aac.c | |
| parent | 3ac56e28b0a3fc84ccac9ac7e359f0f29567f8a0 (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/aac.c')
| -rw-r--r-- | libavcodec/aac.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/aac.c b/libavcodec/aac.c index 5427d7c672..25c74b8157 100644 --- a/libavcodec/aac.c +++ b/libavcodec/aac.c @@ -500,8 +500,8 @@ static av_cold int aac_decode_init(AVCodecContext * avccontext) { ff_aac_scalefactor_code, sizeof(ff_aac_scalefactor_code[0]), sizeof(ff_aac_scalefactor_code[0]), 352); - ff_mdct_init(&ac->mdct, 11, 1); - ff_mdct_init(&ac->mdct_small, 8, 1); + ff_mdct_init(&ac->mdct, 11, 1, 1.0); + ff_mdct_init(&ac->mdct_small, 8, 1, 1.0); // window initialization ff_kbd_window_init(ff_aac_kbd_long_1024, 4.0, 1024); ff_kbd_window_init(ff_aac_kbd_short_128, 6.0, 128); |