43 0, 512, 1024, 1536, 2052, 2564, 3076, 3588, 4100, 4612, 5124,
44 5636, 6164, 6676, 7224
54 static int vlc_initialized = 0;
59 static VLC_TYPE quant_tables[7224][2];
96 if(vlc_initialized)
return 0;
98 scfi_vlc.
table = scfi_table;
106 dscf_vlc.
table = dscf_table;
114 hdr_vlc.
table = hdr_table;
123 for(j = 0; j < 2; j++){
125 quant_vlc[i][j].
table_allocated = quant_offsets[i*2 + j + 1] - quant_offsets[i*2 + j];
153 for(i = 0; i < SAMPLES_PER_BAND/3; i++){
162 for(i = 0; i < SAMPLES_PER_BAND/2; i++){
168 case 3:
case 4:
case 5:
case 6:
case 7:
173 case 8:
case 9:
case 10:
case 11:
case 12:
174 case 13:
case 14:
case 15:
case 16:
case 17:
175 t = (1 << (idx - 2)) - 1;
193 int *got_frame_ptr,
AVPacket *avpkt)
203 int off,
ret, last_frame, skip;
204 int bits_used, bits_avail;
206 memset(bands, 0,
sizeof(*bands) * (c->
maxbands + 1));
208 buf_size = avpkt->
size & ~3;
214 if (buf_size != avpkt->
size) {
216 "extra bytes at the end will be skipped.\n");
239 for(ch = 0; ch < 2; ch++){
243 else bands[i].
res[ch] = bands[i-1].
res[ch] + t;
244 if (bands[i].res[ch] < -1 || bands[i].res[ch] > 17) {
250 if(bands[i].res[0] || bands[i].res[1]){
256 for(i = 0; i <=
mb; i++)
257 for(ch = 0; ch < 2; ch++)
260 for(i = 0; i <=
mb; i++){
261 for(ch = 0; ch < 2; ch++){
262 if(bands[i].res[ch]){
265 switch(bands[i].scfi[ch]){
287 memset(c->
Q, 0,
sizeof(c->
Q));
290 for(ch = 0; ch < 2; ch++)
298 bits_avail = buf_size * 8;
299 if (!last_frame && ((bits_avail < bits_used) || (bits_used + 32 <= bits_avail))) {
300 av_log(avctx,
AV_LOG_ERROR,
"Error decoding frame: used %i of %i bits\n", bits_used, bits_avail);