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| author | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2016-06-08 15:19:03 -0400 |
|---|---|---|
| committer | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2016-07-19 16:11:50 -0400 |
| commit | 7780d4a6b16822498723235c7e34d9c0f62809fb (patch) | |
| tree | 527eab04d0b397bf2ef953a1b28b50c0d5f76312 | |
| parent | 1484591656533c36b67615f7dd89e82c467b5f14 (diff) | |
| download | opus-7780d4a6b16822498723235c7e34d9c0f62809fb.tar.gz | |
Retuning the tf_analysis() lambda
Increasing the value at low rate seems to help a bit.
| -rw-r--r-- | celt/celt_encoder.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/celt/celt_encoder.c b/celt/celt_encoder.c index 9be9de2f..1520a6ca 100644 --- a/celt/celt_encoder.c +++ b/celt/celt_encoder.c @@ -1758,15 +1758,7 @@ int celt_encode_with_ec(CELTEncoder * OPUS_RESTRICT st, const opus_val16 * pcm, if (effectiveBytes>=15*C && !hybrid && st->complexity>=2 && !st->lfe) { int lambda; - if (effectiveBytes<40) - lambda = 12; - else if (effectiveBytes<60) - lambda = 6; - else if (effectiveBytes<100) - lambda = 4; - else - lambda = 3; - lambda*=2; + lambda = IMAX(5, 1280/effectiveBytes + 2); tf_select = tf_analysis(mode, effEnd, isTransient, tf_res, lambda, X, N, LM, tf_estimate, tf_chan); for (i=effEnd;i<end;i++) tf_res[i] = tf_res[effEnd-1]; |