adpcmenc: Calculate the IMA_QT predictor without overflow

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>
(cherry picked from commit aa264da5bf6a3d82a47abba4cfcfa629dd1f3daa)
Signed-off-by: Diego Biurrun <diego@biurrun.de>

Conflicts:
	tests/ref/fate/acodec-adpcm-ima_qt

0 files changed, 0 insertions, 0 deletions