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Fixes a redundancy mismatch bug

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When SILK decided not to use the desired bandwidth, the redundancy
could be encoded at the desired bandwidth rather than at the actual
bandwidth used.
This commit is contained in:
Jean-Marc Valin 2011-10-08 22:12:31 -04:00
parent 207a2e8627
commit 78291b270a
1 changed files with 7 additions and 8 deletions
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15
src/opus_encoder.c
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@ -219,7 +219,7 @@ int opus_encoder_init(OpusEncoder* st, opus_int32 Fs, int channels, int applicat
return OPUS_OK;
}
static unsigned char gen_toc(int mode, int framerate, int bandwidth, int silk_bandwidth, int channels)
static unsigned char gen_toc(int mode, int framerate, int bandwidth, int channels)
{
int period;
unsigned char toc;
@ -231,7 +231,7 @@ static unsigned char gen_toc(int mode, int framerate, int bandwidth, int silk_ba
}
if (mode == MODE_SILK_ONLY)
{
toc = (silk_bandwidth-OPUS_BANDWIDTH_NARROWBAND)<<5;
toc = (bandwidth-OPUS_BANDWIDTH_NARROWBAND)<<5;
toc |= (period-2)<<3;
} else if (mode == MODE_CELT_ONLY)
{
@ -412,7 +412,6 @@ int opus_encode_float(OpusEncoder *st, const opus_val16 *pcm, int frame_size,
int ret=0;
int nBytes;
ec_enc enc;
int silk_internal_bandwidth=-1;
int bytes_target;
int prefill=0;
int start_band = 0;
@ -803,18 +802,18 @@ int opus_encode_float(OpusEncoder *st, const opus_val16 *pcm, int frame_size,
}
if (nBytes==0)
{
data[-1] = gen_toc(st->mode, st->Fs/frame_size, st->bandwidth, silk_internal_bandwidth, st->stream_channels);
data[-1] = gen_toc(st->mode, st->Fs/frame_size, st->bandwidth, st->stream_channels);
RESTORE_STACK;
return 1;
}
/* Extract SILK internal bandwidth for signaling in first byte */
if( st->mode == MODE_SILK_ONLY ) {
if( st->silk_mode.internalSampleRate == 8000 ) {
silk_internal_bandwidth = OPUS_BANDWIDTH_NARROWBAND;
st->bandwidth = OPUS_BANDWIDTH_NARROWBAND;
} else if( st->silk_mode.internalSampleRate == 12000 ) {
silk_internal_bandwidth = OPUS_BANDWIDTH_MEDIUMBAND;
st->bandwidth = OPUS_BANDWIDTH_MEDIUMBAND;
} else if( st->silk_mode.internalSampleRate == 16000 ) {
silk_internal_bandwidth = OPUS_BANDWIDTH_WIDEBAND;
st->bandwidth = OPUS_BANDWIDTH_WIDEBAND;
}
} else {
silk_assert( st->silk_mode.internalSampleRate == 16000 );
@ -1003,7 +1002,7 @@ int opus_encode_float(OpusEncoder *st, const opus_val16 *pcm, int frame_size,
/* Signalling the mode in the first byte */
data--;
data[0] = gen_toc(st->mode, st->Fs/frame_size, st->bandwidth, silk_internal_bandwidth, st->stream_channels);
data[0] = gen_toc(st->mode, st->Fs/frame_size, st->bandwidth, st->stream_channels);
st->rangeFinal = enc.rng ^ redundant_rng;