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| author | Derek Buitenhuis <derek.buitenhuis@gmail.com> | 2012-02-23 10:55:35 -0500 |
|---|---|---|
| committer | Anton Khirnov <anton@khirnov.net> | 2012-02-23 20:43:39 +0100 |
| commit | 480b133e6f79c470aff0f84d9ed3648d37c32b03 (patch) | |
| tree | 61a71c7c0d9b4b9d4e1c0c9d6d24c492c53777fe /libavcodec/wavpack.c | |
| parent | ba605cef7961ee699c893d1a3b5c9730f0a37b6c (diff) | |
| download | ffmpeg-480b133e6f79c470aff0f84d9ed3648d37c32b03.tar.gz | |
wavpack: Don't shift minclip/maxclip
Since we are clipping before we shift the values to
16 or 32 bits, we should not shift the min/max clip
values to compensate.
Fixes 8 and 24 bit lossy decoding.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Diffstat (limited to 'libavcodec/wavpack.c')
| -rw-r--r-- | libavcodec/wavpack.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c index fb0e0b2fa7..6eb913fa64 100644 --- a/libavcodec/wavpack.c +++ b/libavcodec/wavpack.c @@ -813,8 +813,8 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no, s->hybrid = s->frame_flags & WV_HYBRID_MODE; s->hybrid_bitrate = s->frame_flags & WV_HYBRID_BITRATE; s->post_shift = bpp * 8 - orig_bpp + ((s->frame_flags >> 13) & 0x1f); - s->hybrid_maxclip = (( 1LL << (orig_bpp - 1)) - 1) >> s->post_shift; - s->hybrid_minclip = ((-1LL << (orig_bpp - 1))) >> s->post_shift; + s->hybrid_maxclip = (( 1LL << (orig_bpp - 1)) - 1); + s->hybrid_minclip = ((-1LL << (orig_bpp - 1))); s->CRC = AV_RL32(buf); buf += 4; if (wc->mkv_mode) buf += 4; //skip block size; |