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vp8dec: reset loopfilter delta values at keyframes

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while testing a VP8 encoder I found a mismatch between FFMPEG and libvpx
VP8 decoders. The reason for this mismatch is that FFMPEG doesn't reset
loopfilter delta values at keyframes. Patch that fixes the issue is below.
I've verified that the output of ffmpeg after this patch matches libvpx.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Sami Pietilä 2012-10-13 12:43:24 +02:00 committed by Michael Niedermayer
parent 6254ffe0ca
commit 3cc0252732
1 changed files with 1 additions and 0 deletions
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libavcodec/vp8.c
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@ -353,6 +353,7 @@ static int decode_frame_header(VP8Context *s, const uint8_t *buf, int buf_size)
memcpy(s->prob->pred8x8c , vp8_pred8x8c_prob_inter , sizeof(s->prob->pred8x8c));
memcpy(s->prob->mvc , vp8_mv_default_prob , sizeof(s->prob->mvc));
memset(&s->segmentation, 0, sizeof(s->segmentation));
memset(&s->lf_delta, 0, sizeof(s->lf_delta));
}
ff_vp56_init_range_decoder(c, buf, header_size);