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ffmpeg.wasm-core
Commit 15f537ed authored by Justin Ruggles's avatar Justin Ruggles
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cosmetics: change FlacEncodeContext variable name from ctx to s in several 

places for consistency.

Originally committed as revision 24602 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 871a24f3
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Showing with 36 additions and 36 deletions
libavcodec/flacenc.c
View file @ 15f537ed
......@@ -791,7 +791,7 @@ static void encode_residual_lpc(int32_t *res, const int32_t *smp, int n,
}
static int encode_residual(FlacEncodeContext *ctx, int ch)
static int encode_residual(FlacEncodeContext *s, int ch)
{
int i, n;
int min_order, max_order, opt_order, precision, omethod;
......@@ -802,7 +802,7 @@ static int encode_residual(FlacEncodeContext *ctx, int ch)
int shift[MAX_LPC_ORDER];
int32_t *res, *smp;
frame = &ctx->frame;
frame = &s->frame;
sub = &frame->subframes[ch];
res = sub->residual;
smp = sub->samples;
......@@ -825,16 +825,16 @@ static int encode_residual(FlacEncodeContext *ctx, int ch)
return sub->obits * n;
}
min_order = ctx->options.min_prediction_order;
max_order = ctx->options.max_prediction_order;
min_porder = ctx->options.min_partition_order;
max_porder = ctx->options.max_partition_order;
precision = ctx->options.lpc_coeff_precision;
omethod = ctx->options.prediction_order_method;
min_order = s->options.min_prediction_order;
max_order = s->options.max_prediction_order;
min_porder = s->options.min_partition_order;
max_porder = s->options.max_partition_order;
precision = s->options.lpc_coeff_precision;
omethod = s->options.prediction_order_method;
/* FIXED */
if (ctx->options.lpc_type == AV_LPC_TYPE_NONE ||
ctx->options.lpc_type == AV_LPC_TYPE_FIXED || n <= max_order) {
if (s->options.lpc_type == AV_LPC_TYPE_NONE ||
s->options.lpc_type == AV_LPC_TYPE_FIXED || n <= max_order) {
uint32_t bits[MAX_FIXED_ORDER+1];
if (max_order > MAX_FIXED_ORDER)
max_order = MAX_FIXED_ORDER;
......@@ -859,9 +859,9 @@ static int encode_residual(FlacEncodeContext *ctx, int ch)
}
/* LPC */
opt_order = ff_lpc_calc_coefs(&ctx->dsp, smp, n, min_order, max_order,
precision, coefs, shift, ctx->options.lpc_type,
ctx->options.lpc_passes, omethod,
opt_order = ff_lpc_calc_coefs(&s->dsp, smp, n, min_order, max_order,
precision, coefs, shift, s->options.lpc_type,
s->options.lpc_passes, omethod,
MAX_LPC_SHIFT, 0);
if (omethod == ORDER_METHOD_2LEVEL ||
......@@ -936,14 +936,14 @@ static int encode_residual(FlacEncodeContext *ctx, int ch)
}
static int encode_residual_v(FlacEncodeContext *ctx, int ch)
static int encode_residual_v(FlacEncodeContext *s, int ch)
{
int i, n;
FlacFrame *frame;
FlacSubframe *sub;
int32_t *res, *smp;
frame = &ctx->frame;
frame = &s->frame;
sub = &frame->subframes[ch];
res = sub->residual;
smp = sub->samples;
......@@ -1016,18 +1016,18 @@ static int estimate_stereo_mode(int32_t *left_ch, int32_t *right_ch, int n)
/**
* Perform stereo channel decorrelation.
*/
static void channel_decorrelation(FlacEncodeContext *ctx)
static void channel_decorrelation(FlacEncodeContext *s)
{
FlacFrame *frame;
int32_t *left, *right;
int i, n;
frame = &ctx->frame;
frame = &s->frame;
n = frame->blocksize;
left = frame->subframes[0].samples;
right = frame->subframes[1].samples;
if (ctx->channels != 2) {
if (s->channels != 2) {
frame->ch_mode = FLAC_CHMODE_INDEPENDENT;
return;
}
......@@ -1129,7 +1129,7 @@ static void output_subframe_verbatim(FlacEncodeContext *s, int ch)
}
static void output_residual(FlacEncodeContext *ctx, int ch)
static void output_residual(FlacEncodeContext *s, int ch)
{
int i, j, p, n, parts;
int k, porder, psize, res_cnt;
......@@ -1137,74 +1137,74 @@ static void output_residual(FlacEncodeContext *ctx, int ch)
FlacSubframe *sub;
int32_t *res;
frame = &ctx->frame;
frame = &s->frame;
sub = &frame->subframes[ch];
res = sub->residual;
n = frame->blocksize;
/* rice-encoded block */
put_bits(&ctx->pb, 2, 0);
put_bits(&s->pb, 2, 0);
/* partition order */
porder = sub->rc.porder;
psize = n >> porder;
parts = (1 << porder);
put_bits(&ctx->pb, 4, porder);
put_bits(&s->pb, 4, porder);
res_cnt = psize - sub->order;
/* residual */
j = sub->order;
for (p = 0; p < parts; p++) {
k = sub->rc.params[p];
put_bits(&ctx->pb, 4, k);
put_bits(&s->pb, 4, k);
if (p == 1)
res_cnt = psize;
for (i = 0; i < res_cnt && j < n; i++, j++)
set_sr_golomb_flac(&ctx->pb, res[j], k, INT32_MAX, 0);
set_sr_golomb_flac(&s->pb, res[j], k, INT32_MAX, 0);
}
}
static void output_subframe_fixed(FlacEncodeContext *ctx, int ch)
static void output_subframe_fixed(FlacEncodeContext *s, int ch)
{
int i;
FlacFrame *frame;
FlacSubframe *sub;
frame = &ctx->frame;
frame = &s->frame;
sub = &frame->subframes[ch];
/* warm-up samples */
for (i = 0; i < sub->order; i++)
put_sbits(&ctx->pb, sub->obits, sub->residual[i]);
put_sbits(&s->pb, sub->obits, sub->residual[i]);
/* residual */
output_residual(ctx, ch);
output_residual(s, ch);
}
static void output_subframe_lpc(FlacEncodeContext *ctx, int ch)
static void output_subframe_lpc(FlacEncodeContext *s, int ch)
{
int i, cbits;
FlacFrame *frame;
FlacSubframe *sub;
frame = &ctx->frame;
frame = &s->frame;
sub = &frame->subframes[ch];
/* warm-up samples */
for (i = 0; i < sub->order; i++)
put_sbits(&ctx->pb, sub->obits, sub->residual[i]);
put_sbits(&s->pb, sub->obits, sub->residual[i]);
/* LPC coefficients */
cbits = ctx->options.lpc_coeff_precision;
put_bits( &ctx->pb, 4, cbits-1);
put_sbits(&ctx->pb, 5, sub->shift);
cbits = s->options.lpc_coeff_precision;
put_bits( &s->pb, 4, cbits-1);
put_sbits(&s->pb, 5, sub->shift);
for (i = 0; i < sub->order; i++)
put_sbits(&ctx->pb, cbits, sub->coefs[i]);
put_sbits(&s->pb, cbits, sub->coefs[i]);
/* residual */
output_residual(ctx, ch);
output_residual(s, ch);
}
......
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