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| author | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2015-11-27 19:10:24 -0500 |
|---|---|---|
| committer | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2016-06-29 15:21:31 -0400 |
| commit | 3240e7d98c6fce6e22ab59da69f81bded909e897 (patch) | |
| tree | 4836c5f4c3331f85cce8c02d48069480f985efd3 /src/opus_encoder.c | |
| parent | 28677f7e95d94fe80cfff3533391a26f51a17699 (diff) | |
| download | opus-3240e7d98c6fce6e22ab59da69f81bded909e897.tar.gz | |
Quality: Encoding music in full-band stereo from 32 kb/s
Gradual downmix now happens in the 24 kb/s to 32 kb/s range
Diffstat (limited to 'src/opus_encoder.c')
| -rw-r--r-- | src/opus_encoder.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/opus_encoder.c b/src/opus_encoder.c index 7333b718..902e60e1 100644 --- a/src/opus_encoder.c +++ b/src/opus_encoder.c @@ -133,12 +133,12 @@ static const opus_int32 stereo_voice_bandwidth_thresholds[8] = { static const opus_int32 stereo_music_bandwidth_thresholds[8] = { 12000, 1000, /* NB<->MB */ 18000, 2000, /* MB<->WB */ - 21000, 2000, /* WB<->SWB */ - 30000, 2000, /* SWB<->FB */ + 20000, 2000, /* WB<->SWB */ + 24000, 2000, /* SWB<->FB */ }; /* Threshold bit-rates for switching between mono and stereo */ -static const opus_int32 stereo_voice_threshold = 30000; -static const opus_int32 stereo_music_threshold = 30000; +static const opus_int32 stereo_voice_threshold = 24000; +static const opus_int32 stereo_music_threshold = 24000; /* Threshold bit-rate for switching between SILK/hybrid and CELT-only */ static const opus_int32 mode_thresholds[2][2] = { @@ -1780,7 +1780,7 @@ opus_int32 opus_encode_native(OpusEncoder *st, const opus_val16 *pcm, int frame_ } st->prev_HB_gain = HB_gain; if (st->mode != MODE_HYBRID || st->stream_channels==1) - st->silk_mode.stereoWidth_Q14 = IMIN((1<<14),2*IMAX(0,equiv_rate-30000)); + st->silk_mode.stereoWidth_Q14 = IMIN((1<<14),2*IMAX(0,equiv_rate-24000)); if( !st->energy_masking && st->channels == 2 ) { /* Apply stereo width reduction (at low bitrates) */ if( st->hybrid_stereo_width_Q14 < (1 << 14) || st->silk_mode.stereoWidth_Q14 < (1 << 14) ) { |