static int decode_residuals(FLACContext *s, int32_t *decoded, int pred_order)
{
int i, tmp, partition, method_type, rice_order;
int rice_bits, rice_esc;
int samples;
method_type = get_bits(&s->gb, 2);
if (method_type > 1) {
av_log(s->avctx, AV_LOG_ERROR, "illegal residual coding method %d\n",
method_type);
return AVERROR_INVALIDDATA;
}
rice_order = get_bits(&s->gb, 4);
samples= s->blocksize >> rice_order;
if (samples << rice_order != s->blocksize) {
av_log(s->avctx, AV_LOG_ERROR, "invalid rice order: %i blocksize %i\n",
rice_order, s->blocksize);
return AVERROR_INVALIDDATA;
}
if (pred_order > samples) {
av_log(s->avctx, AV_LOG_ERROR, "invalid predictor order: %i > %i\n",
pred_order, samples);
return AVERROR_INVALIDDATA;
}
rice_bits = 4 + method_type;
rice_esc = (1 << rice_bits) - 1;
decoded += pred_order;
i= pred_order;
for (partition = 0; partition < (1 << rice_order); partition++) {
tmp = get_bits(&s->gb, rice_bits);
if (tmp == rice_esc) {
tmp = get_bits(&s->gb, 5);
for (; i < samples; i++)
*decoded++ = get_sbits_long(&s->gb, tmp);
} else {
for (; i < samples; i++) {
*decoded++ = get_sr_golomb_flac(&s->gb, tmp, INT_MAX, 0);
}
}
i= 0;
}
return 0;
}
static int decode_residuals(FLACContext *s, int channel, int pred_order)
{
int i, tmp, partition, method_type, rice_order;
int sample = 0, samples;
method_type = get_bits(&s->gb, 2);
if (method_type > 1)
{
av_log(s->avctx, AV_LOG_ERROR, "illegal residual coding method %d\n",
method_type);
return -1;
}
rice_order = get_bits(&s->gb, 4);
samples = s->blocksize >> rice_order;
if (pred_order > samples)
{
av_log(s->avctx, AV_LOG_ERROR, "invalid predictor order: %i > %i\n",
pred_order, samples);
return -1;
}
sample =
i = pred_order;
for (partition = 0; partition < (1 << rice_order); partition++)
{
tmp = get_bits(&s->gb, method_type == 0 ? 4 : 5);
if (tmp == (method_type == 0 ? 15 : 31))
{
tmp = get_bits(&s->gb, 5);
for (; i < samples; i++, sample++)
s->decoded[channel][sample] = get_sbits_long(&s->gb, tmp);
}
else
{
for (; i < samples; i++, sample++)
{
s->decoded[channel][sample] = get_sr_golomb_flac(&s->gb, tmp, INT_MAX, 0);
}
}
i = 0;
}
return 0;
}
static int decode_residuals(FLACContext *s, int32_t* decoded, int pred_order)
{
int i, tmp, partition, method_type, rice_order;
int sample = 0, samples;
method_type = get_bits(&s->gb, 2);
if (method_type > 1){
//fprintf(stderr,"illegal residual coding method %d\n", method_type);
return -3;
}
rice_order = get_bits(&s->gb, 4);
samples= s->blocksize >> rice_order;
sample=
i= pred_order;
for (partition = 0; partition < (1 << rice_order); partition++)
{
tmp = get_bits(&s->gb, method_type == 0 ? 4 : 5);
if (tmp == (method_type == 0 ? 15 : 31))
{
//fprintf(stderr,"fixed len partition\n");
tmp = get_bits(&s->gb, 5);
for (; i < samples; i++, sample++)
decoded[sample] = get_sbits(&s->gb, tmp);
}
else
{
for (; i < samples; i++, sample++){
decoded[sample] = get_sr_golomb_flac(&s->gb, tmp, INT_MAX, 0);
}
}
i= 0;
}
return 0;
}