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| author | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2016-06-06 16:54:29 -0400 |
|---|---|---|
| committer | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2016-06-06 17:54:05 -0400 |
| commit | 46b03492fc22632feb9e9504a803f499c938e69c (patch) | |
| tree | f9c12e3bd3d9d4f3ccd243cea99fa4b3fa328f26 | |
| parent | 81bf13c307730944e530dc2ba4ffbfa5813aa432 (diff) | |
| download | opus-exp_hybrid_tune2.tar.gz | |
Don't use too much temporal resolution on hybrid frames at low rateexp_hybrid_tune2
Otherwise, we risk having "temporal holes" in the HF that anti-collapse
can't always fill in.
| -rw-r--r-- | celt/celt_encoder.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/celt/celt_encoder.c b/celt/celt_encoder.c index e8eff5cf..85b31996 100644 --- a/celt/celt_encoder.c +++ b/celt/celt_encoder.c @@ -1772,6 +1772,13 @@ int celt_encode_with_ec(CELTEncoder * OPUS_RESTRICT st, const opus_val16 * pcm, tf_select = tf_analysis(mode, effEnd, isTransient, tf_res, lambda, X, N, LM, &tf_sum, tf_estimate, tf_chan); for (i=effEnd;i<end;i++) tf_res[i] = tf_res[effEnd-1]; + } else if (hybrid && effectiveBytes<15) + { + /* For low bitrate hybrid, we force temporal resolution to 5 ms rather than 2.5 ms. */ + tf_sum = 0; + for (i=0;i<end;i++) + tf_res[i] = 0; + tf_select=isTransient; } else { tf_sum = 0; for (i=0;i<end;i++) |