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| author | Robert Swain <robert.swain@gmail.com> | 2008-06-22 15:12:27 +0000 |
|---|---|---|
| committer | Robert Swain <robert.swain@gmail.com> | 2008-06-22 15:12:27 +0000 |
| commit | 9146e4d61c9de8fb86a7a9837705a0ad48fc547d (patch) | |
| tree | 9a388e3225b3b770b2c2f3a26767fca52cf19079 /libavcodec/imc.c | |
| parent | d47f16074ff4678d0ea968318354fc8ca6e0ba90 (diff) | |
| download | ffmpeg-9146e4d61c9de8fb86a7a9837705a0ad48fc547d.tar.gz | |
Add generic ff_sine_window_init function and implement in codecs appropriately
Originally committed as revision 13888 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/imc.c')
| -rw-r--r-- | libavcodec/imc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/imc.c b/libavcodec/imc.c index 80372b82b4..934de4a6a9 100644 --- a/libavcodec/imc.c +++ b/libavcodec/imc.c @@ -102,8 +102,9 @@ static av_cold int imc_decode_init(AVCodecContext * avctx) q->old_floor[i] = 1.0; /* Build mdct window, a simple sine window normalized with sqrt(2) */ + ff_sine_window_init(q->mdct_sine_window, COEFFS); for(i = 0; i < COEFFS; i++) - q->mdct_sine_window[i] = sin((i + 0.5) / 512.0 * M_PI) * sqrt(2.0); + q->mdct_sine_window[i] *= sqrt(2.0); for(i = 0; i < COEFFS/2; i++){ q->post_cos[i] = cos(i / 256.0 * M_PI); q->post_sin[i] = sin(i / 256.0 * M_PI); |