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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/wmaenc.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/wmaenc.c')
| -rw-r--r-- | libavcodec/wmaenc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/wmaenc.c b/libavcodec/wmaenc.c index a8ba6b0b66..95e5929c7d 100644 --- a/libavcodec/wmaenc.c +++ b/libavcodec/wmaenc.c @@ -63,7 +63,7 @@ static int encode_init(AVCodecContext * avctx){ /* init MDCT */ for(i = 0; i < s->nb_block_sizes; i++) - ff_mdct_init(&s->mdct_ctx[i], s->frame_len_bits - i + 1, 0); + ff_mdct_init(&s->mdct_ctx[i], s->frame_len_bits - i + 1, 0, 1.0); avctx->block_align= s->block_align= avctx->bit_rate*(int64_t)s->frame_len / (avctx->sample_rate*8); |