Previously, the value given to put_bits was 10 bits long for positive
predictors, even though 9 bits were to be written. The extra bit could
in some cases overwrite existing bits in the bitstream writer cache.
This fixes a failed assert in put_bits.h, when running a version
built with -DDEBUG.
The fate test result gets slightly improved, thanks to getting rid
of the overwritten bits in the bitstream writer cache.
Signed-off-by: Martin Storsjö <martin@martin.st>
init_put_bits(&pb, dst, pkt_size * 8);
for (ch = 0; ch < avctx->channels; ch++) {
- put_bits(&pb, 9, (c->status[ch].prev_sample + 0x10000) >> 7);
+ put_bits(&pb, 9, (c->status[ch].prev_sample & 0xFFFF) >> 7);
put_bits(&pb, 7, c->status[ch].step_index);
if (avctx->trellis > 0) {
uint8_t buf[64];
-057d27978b35888776512e4e9669a63b *tests/data/fate/acodec-adpcm-ima_qt.aiff
+23cbae1182e150ebf28e0abfb9cba127 *tests/data/fate/acodec-adpcm-ima_qt.aiff
281252 tests/data/fate/acodec-adpcm-ima_qt.aiff
-169c40435c68d50112c9c61fc67e446d *tests/data/fate/acodec-adpcm-ima_qt.out.wav
-stddev: 918.61 PSNR: 37.07 MAXDIFF:34029 bytes: 1058400/ 1058560
+b0fafd002c38fb70acaddfda1a31ed61 *tests/data/fate/acodec-adpcm-ima_qt.out.wav
+stddev: 904.76 PSNR: 37.20 MAXDIFF:34029 bytes: 1058400/ 1058560