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fa8f060b75
The actual predictor value, set by the trellis code, never was written back into the variable that was written into the block header. This was accidentally removed inb304244b
. This significantly improves the audio quality of the trellis case, which was plain broken sinceb304244b
. Encoding IMA QT with trellis still actually gives a slightly worse quality than without trellis, since the trellis encoder doesn't use the exact same way of rounding as in adpcm_ima_qt_compress_sample and adpcm_ima_qt_expand_nibble. Fixes part of Ticket3701 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
5 lines
293 B
Plaintext
5 lines
293 B
Plaintext
15f895c2e7119714f94333e3214d8426 *tests/data/fate/acodec-adpcm-ima_qt-trellis.aiff
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281252 tests/data/fate/acodec-adpcm-ima_qt-trellis.aiff
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593d68369c87d4e3b7323b1bea3e9315 *tests/data/fate/acodec-adpcm-ima_qt-trellis.out.wav
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stddev: 716.74 PSNR: 39.22 MAXDIFF:29633 bytes: 1058400/ 1058560
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