74 int need32 = s->bps > 16;
78 if (need32 || want32) {
137 assert(s->max_blocksize);
162 int metadata_type, metadata_size, ret;
192 int metadata_last, metadata_size;
193 const uint8_t *buf_end = buf + buf_size;
197 if (buf_end - buf < 4)
201 if (buf_end - buf < metadata_size) {
205 buf += metadata_size;
206 }
while (!metadata_last);
208 return buf_size - (buf_end - buf);
213 int i, tmp, partition, method_type, rice_order;
214 int rice_bits, rice_esc;
218 if (method_type > 1) {
227 if (pred_order > samples) {
229 pred_order, samples);
233 rice_bits = 4 + method_type;
234 rice_esc = (1 << rice_bits) - 1;
236 decoded += pred_order;
238 for (partition = 0; partition < (1 << rice_order); partition++) {
240 if (tmp == rice_esc) {
256 int pred_order,
int bps)
262 for (i = 0; i < pred_order; i++) {
270 a = decoded[pred_order-1];
272 b = a - decoded[pred_order-2];
274 c = b - decoded[pred_order-2] + decoded[pred_order-3];
276 d = c - decoded[pred_order-2] + 2*decoded[pred_order-3] - decoded[pred_order-4];
278 switch (pred_order) {
282 for (i = pred_order; i < blocksize; i++)
283 decoded[i] = a += decoded[i];
286 for (i = pred_order; i < blocksize; i++)
287 decoded[i] = a += b += decoded[i];
290 for (i = pred_order; i < blocksize; i++)
291 decoded[i] = a += b += c += decoded[i];
294 for (i = pred_order; i < blocksize; i++)
295 decoded[i] = a += b += c += d += decoded[i];
309 int coeff_prec, qlevel;
313 for (i = 0; i < pred_order; i++) {
318 if (coeff_prec == 16) {
329 for (i = 0; i < pred_order; i++) {
330 coeffs[pred_order - i - 1] =
get_sbits(&s->
gb, coeff_prec);
344 int type, wasted = 0;
369 "Invalid number of wasted bits > available bits (%d) - left=%d\n",
387 }
else if (type == 1) {
390 }
else if ((type >= 8) && (type <= 12)) {
393 }
else if (type >= 32) {
404 decoded[i] <<= wasted;
421 if (s->channels && fi.channels != s->channels && s->
got_streaminfo) {
433 if (!s->bps && !fi.bps) {
439 }
else if (s->bps && fi.bps != s->bps) {
450 if (!s->max_blocksize)
459 if (!s->samplerate && !fi.samplerate) {
461 " or frame header\n");
464 if (fi.samplerate == 0)
465 fi.samplerate = s->samplerate;
480 for (i = 0; i < s->channels; i++) {
494 int *got_frame_ptr,
AVPacket *avpkt)
497 int buf_size = avpkt->
size;
504 if (s->max_framesize == 0) {
543 if (bytes_read > buf_size) {
547 if (bytes_read < buf_size) {
549 buf_size - bytes_read, buf_size);