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Update opus from 1.1.4 to 1.2.1

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This commit is contained in:
Zack Middleton committed 2018-03-16 13:29:19 -05:00
1 parent c38c823a2a
commit cb24c59567
155 files changed
+6263 -3968
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code/opus-1.1.4/celt/celt_decoder.c
+105 -13
View File
@@ -73,6 +73,7 @@ struct OpusCustomDecoder {
int downsample;
int start, end;
int signalling;
int disable_inv;
int arch;
/* Everything beyond this point gets cleared on a reset */
@@ -163,6 +164,11 @@ OPUS_CUSTOM_NOSTATIC int opus_custom_decoder_init(CELTDecoder *st, const CELTMod
st->start = 0;
st->end = st->mode->effEBands;
st->signalling = 1;
#ifdef ENABLE_UPDATE_DRAFT
st->disable_inv = channels == 1;
#else
st->disable_inv = 0;
#endif
st->arch = opus_select_arch();
opus_custom_decoder_ctl(st, OPUS_RESET_STATE);
@@ -177,6 +183,36 @@ void opus_custom_decoder_destroy(CELTDecoder *st)
}
#endif /* CUSTOM_MODES */
#ifndef CUSTOM_MODES
/* Special case for stereo with no downsampling and no accumulation. This is
quite common and we can make it faster by processing both channels in the
same loop, reducing overhead due to the dependency loop in the IIR filter. */
static void deemphasis_stereo_simple(celt_sig *in[], opus_val16 *pcm, int N, const opus_val16 coef0,
celt_sig *mem)
{
celt_sig * OPUS_RESTRICT x0;
celt_sig * OPUS_RESTRICT x1;
celt_sig m0, m1;
int j;
x0=in[0];
x1=in[1];
m0 = mem[0];
m1 = mem[1];
for (j=0;j<N;j++)
{
celt_sig tmp0, tmp1;
/* Add VERY_SMALL to x[] first to reduce dependency chain. */
tmp0 = x0[j] + VERY_SMALL + m0;
tmp1 = x1[j] + VERY_SMALL + m1;
m0 = MULT16_32_Q15(coef0, tmp0);
m1 = MULT16_32_Q15(coef0, tmp1);
pcm[2*j ] = SCALEOUT(SIG2WORD16(tmp0));
pcm[2*j+1] = SCALEOUT(SIG2WORD16(tmp1));
}
mem[0] = m0;
mem[1] = m1;
}
#endif
#ifndef RESYNTH
static
@@ -190,6 +226,14 @@ void deemphasis(celt_sig *in[], opus_val16 *pcm, int N, int C, int downsample, c
opus_val16 coef0;
VARDECL(celt_sig, scratch);
SAVE_STACK;
#ifndef CUSTOM_MODES
/* Short version for common case. */
if (downsample == 1 && C == 2 && !accum)
{
deemphasis_stereo_simple(in, pcm, N, coef[0], mem);
return;
}
#endif
#ifndef FIXED_POINT
(void)accum;
celt_assert(accum==0);
@@ -225,7 +269,7 @@ void deemphasis(celt_sig *in[], opus_val16 *pcm, int N, int C, int downsample, c
/* Shortcut for the standard (non-custom modes) case */
for (j=0;j<N;j++)
{
celt_sig tmp = x[j] + m + VERY_SMALL;
celt_sig tmp = x[j] + VERY_SMALL + m;
m = MULT16_32_Q15(coef0, tmp);
scratch[j] = tmp;
}
@@ -246,7 +290,7 @@ void deemphasis(celt_sig *in[], opus_val16 *pcm, int N, int C, int downsample, c
{
for (j=0;j<N;j++)
{
celt_sig tmp = x[j] + m + VERY_SMALL;
celt_sig tmp = x[j] + VERY_SMALL + m;
m = MULT16_32_Q15(coef0, tmp);
y[j*C] = SCALEOUT(SIG2WORD16(tmp));
}
@@ -333,7 +377,7 @@ void celt_synthesis(const CELTMode *mode, celt_norm *X, celt_sig * out_syn[],
denormalise_bands(mode, X+N, freq2, oldBandE+nbEBands, start, effEnd, M,
downsample, silence);
for (i=0;i<N;i++)
freq[i] = HALF32(ADD32(freq[i],freq2[i]));
freq[i] = ADD32(HALF32(freq[i]), HALF32(freq2[i]));
for (b=0;b<B;b++)
clt_mdct_backward(&mode->mdct, &freq[b], out_syn[0]+NB*b, mode->window, overlap, shift, B, arch);
} else {
@@ -345,6 +389,12 @@ void celt_synthesis(const CELTMode *mode, celt_norm *X, celt_sig * out_syn[],
clt_mdct_backward(&mode->mdct, &freq[b], out_syn[c]+NB*b, mode->window, overlap, shift, B, arch);
} while (++c<CC);
}
/* Saturate IMDCT output so that we can't overflow in the pitch postfilter
or in the */
c=0; do {
for (i=0;i<N;i++)
out_syn[c][i] = SATURATE(out_syn[c][i], SIG_SAT);
} while (++c<CC);
RESTORE_STACK;
}
@@ -506,10 +556,11 @@ static void celt_decode_lost(CELTDecoder * OPUS_RESTRICT st, int N, int LM)
} else {
/* Pitch-based PLC */
const opus_val16 *window;
opus_val16 *exc;
opus_val16 fade = Q15ONE;
int pitch_index;
VARDECL(opus_val32, etmp);
VARDECL(opus_val16, exc);
VARDECL(opus_val16, _exc);
if (loss_count == 0)
{
@@ -520,7 +571,8 @@ static void celt_decode_lost(CELTDecoder * OPUS_RESTRICT st, int N, int LM)
}
ALLOC(etmp, overlap, opus_val32);
ALLOC(exc, MAX_PERIOD, opus_val16);
ALLOC(_exc, MAX_PERIOD+LPC_ORDER, opus_val16);
exc = _exc+LPC_ORDER;
window = mode->window;
c=0; do {
opus_val16 decay;
@@ -561,6 +613,23 @@ static void celt_decode_lost(CELTDecoder * OPUS_RESTRICT st, int N, int LM)
#endif
}
_celt_lpc(lpc+c*LPC_ORDER, ac, LPC_ORDER);
#ifdef FIXED_POINT
/* For fixed-point, apply bandwidth expansion until we can guarantee that
no overflow can happen in the IIR filter. This means:
32768*sum(abs(filter)) < 2^31 */
while (1) {
opus_val16 tmp=Q15ONE;
opus_val32 sum=QCONST16(1., SIG_SHIFT);
for (i=0;i<LPC_ORDER;i++)
sum += ABS16(lpc[c*LPC_ORDER+i]);
if (sum < 65535) break;
for (i=0;i<LPC_ORDER;i++)
{
tmp = MULT16_16_Q15(QCONST16(.99f,15), tmp);
lpc[c*LPC_ORDER+i] = MULT16_16_Q15(lpc[c*LPC_ORDER+i], tmp);
}
}
#endif
}
/* We want the excitation for 2 pitch periods in order to look for a
decaying signal, but we can't get more than MAX_PERIOD. */
@@ -568,15 +637,14 @@ static void celt_decode_lost(CELTDecoder * OPUS_RESTRICT st, int N, int LM)
/* Initialize the LPC history with the samples just before the start
of the region for which we're computing the excitation. */
{
opus_val16 lpc_mem[LPC_ORDER];
for (i=0;i<LPC_ORDER;i++)
{
lpc_mem[i] =
ROUND16(buf[DECODE_BUFFER_SIZE-exc_length-1-i], SIG_SHIFT);
exc[MAX_PERIOD-exc_length-LPC_ORDER+i] =
ROUND16(buf[DECODE_BUFFER_SIZE-exc_length-LPC_ORDER+i], SIG_SHIFT);
}
/* Compute the excitation for exc_length samples before the loss. */
celt_fir(exc+MAX_PERIOD-exc_length, lpc+c*LPC_ORDER,
exc+MAX_PERIOD-exc_length, exc_length, LPC_ORDER, lpc_mem, st->arch);
exc+MAX_PERIOD-exc_length, exc_length, LPC_ORDER, st->arch);
}
/* Check if the waveform is decaying, and if so how fast.
@@ -630,9 +698,8 @@ static void celt_decode_lost(CELTDecoder * OPUS_RESTRICT st, int N, int LM)
tmp = ROUND16(
buf[DECODE_BUFFER_SIZE-MAX_PERIOD-N+extrapolation_offset+j],
SIG_SHIFT);
S1 += SHR32(MULT16_16(tmp, tmp), 8);
S1 += SHR32(MULT16_16(tmp, tmp), 10);
}
{
opus_val16 lpc_mem[LPC_ORDER];
/* Copy the last decoded samples (prior to the overlap region) to
@@ -644,6 +711,10 @@ static void celt_decode_lost(CELTDecoder * OPUS_RESTRICT st, int N, int LM)
celt_iir(buf+DECODE_BUFFER_SIZE-N, lpc+c*LPC_ORDER,
buf+DECODE_BUFFER_SIZE-N, extrapolation_len, LPC_ORDER,
lpc_mem, st->arch);
#ifdef FIXED_POINT
for (i=0; i < extrapolation_len; i++)
buf[DECODE_BUFFER_SIZE-N+i] = SATURATE(buf[DECODE_BUFFER_SIZE-N+i], SIG_SAT);
#endif
}
/* Check if the synthesis energy is higher than expected, which can
@@ -654,7 +725,7 @@ static void celt_decode_lost(CELTDecoder * OPUS_RESTRICT st, int N, int LM)
for (i=0;i<extrapolation_len;i++)
{
opus_val16 tmp = ROUND16(buf[DECODE_BUFFER_SIZE-N+i], SIG_SHIFT);
S2 += SHR32(MULT16_16(tmp, tmp), 8);
S2 += SHR32(MULT16_16(tmp, tmp), 10);
}
/* This checks for an "explosion" in the synthesis. */
#ifdef FIXED_POINT
@@ -979,7 +1050,8 @@ int celt_decode_with_ec(CELTDecoder * OPUS_RESTRICT st, const unsigned char *dat
quant_all_bands(0, mode, start, end, X, C==2 ? X+N : NULL, collapse_masks,
NULL, pulses, shortBlocks, spread_decision, dual_stereo, intensity, tf_res,
len*(8<<BITRES)-anti_collapse_rsv, balance, dec, LM, codedBands, &st->rng, st->arch);
len*(8<<BITRES)-anti_collapse_rsv, balance, dec, LM, codedBands, &st->rng, 0,
st->arch, st->disable_inv);
if (anti_collapse_rsv > 0)
{
@@ -1234,6 +1306,26 @@ int opus_custom_decoder_ctl(CELTDecoder * OPUS_RESTRICT st, int request, ...)
*value=st->rng;
}
break;
case OPUS_SET_PHASE_INVERSION_DISABLED_REQUEST:
{
opus_int32 value = va_arg(ap, opus_int32);
if(value<0 || value>1)
{
goto bad_arg;
}
st->disable_inv = value;
}
break;
case OPUS_GET_PHASE_INVERSION_DISABLED_REQUEST:
{
opus_int32 *value = va_arg(ap, opus_int32*);
if (!value)
{
goto bad_arg;
}
*value = st->disable_inv;
}
break;
default:
goto bad_request;
}