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'decode_spectrum' reads 5 bits from bitstream to get number of encoded subbands – so 31 means all 32 subbands are encoded. This value also is used to determinate the number of used band in the hybrid filterbank. 'subband_tab' array contains 33 values of MDCT spec line positions started from 0 line and used to map subband number in to the range of mdct lines. Since the subband_num returned by decode_spectrum actually is number – 1 and subband_tab started from 0 we need to add 1 to make num_bands calculation correct. |
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| .. | ||
| api | ||
| checkasm | ||
| fate | ||
| filtergraphs | ||
| maps | ||
| ref | ||
| streamgroups | ||
| .gitignore | ||
| audiogen.c | ||
| audiomatch.c | ||
| base64.c | ||
| copycooker.sh | ||
| extended.ffconcat | ||
| fate-run.sh | ||
| fate-valgrind.supp | ||
| fate.sh | ||
| Makefile | ||
| md5.sh | ||
| refcmp-metadata.awk | ||
| reference.pnm | ||
| rotozoom.c | ||
| simple1.ffconcat | ||
| simple2.ffconcat | ||
| test.ffmeta | ||
| tiny_psnr.c | ||
| tiny_ssim.c | ||
| utils.c | ||
| videogen.c | ||