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| author | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2016-07-29 13:47:07 -0400 |
|---|---|---|
| committer | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2016-07-29 13:47:07 -0400 |
| commit | eb9e9b33fab666e5e8d6215b0f83e5d4c98fbcff (patch) | |
| tree | 68ce8abe40d75783d494e54abb03e1870f58eb24 | |
| parent | 7226cfbf0b173fdf542f0a5b03b75273b44cff55 (diff) | |
| download | opus-stereo_masking1.tar.gz | |
biasing quantizationstereo_masking1
| -rw-r--r-- | celt/bands.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/celt/bands.c b/celt/bands.c index 2cc6d918..554d0824 100644 --- a/celt/bands.c +++ b/celt/bands.c @@ -762,12 +762,13 @@ static void compute_theta(struct band_ctx *ctx, struct split_ctx *sctx, { if (encode) { + int qoffset = itheta > 8192 ? 16384/(qn+1) : -16384/(qn+1); if (!stereo || ctx->theta_round == 0) itheta = (itheta*(opus_int32)qn+8192)>>14; else if (ctx->theta_round < 0) - itheta = (itheta*(opus_int32)qn)>>14; + itheta = IMAX(0, (itheta*(opus_int32)qn+qoffset)>>14); else - itheta = (itheta*(opus_int32)qn+16383)>>14; + itheta = IMIN(qn, (itheta*(opus_int32)qn+16383+qoffset)>>14); } /* Entropy coding of the angle. We use a uniform pdf for the time split, a step for stereo, and a triangular one for the rest. */ |