ref: bfad28185c9016cc21282e0839ac4b891cb87970
parent: 97cefddc278e1d024d2035a92850f836959280f3
author: Jean-Marc Valin <[email protected]>
date: Tue Oct 25 09:46:35 EDT 2011
Adjusts the bandwidth thresholds depending on complexity and CBR
--- a/src/opus_encoder.c
+++ b/src/opus_encoder.c
@@ -639,7 +639,17 @@
const opus_int32 *voice_bandwidth_thresholds, *music_bandwidth_thresholds;
opus_int32 bandwidth_thresholds[8];
int bandwidth = OPUS_BANDWIDTH_FULLBAND;
+ opus_int32 equiv_rate2;
+ equiv_rate2 = equiv_rate;
+ if (st->mode != MODE_CELT_ONLY)
+ {+ /* Adjust the threshold +/- 10% depending on complexity */
+ equiv_rate2 = equiv_rate2 * (45+st->silk_mode.complexity)/50;
+ /* CBR is less efficient by ~1 kb/s */
+ if (!st->use_vbr)
+ equiv_rate2 -= 1000;
+ }
if (st->channels==2 && st->force_channels!=1)
{voice_bandwidth_thresholds = stereo_voice_bandwidth_thresholds;
@@ -665,7 +675,7 @@
else
threshold += hysteresis;
}
- if (equiv_rate >= threshold)
+ if (equiv_rate2 >= threshold)
break;
} while (--bandwidth>OPUS_BANDWIDTH_NARROWBAND);
st->bandwidth = bandwidth;