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ffv1: set slice geometry based on user specified slices.

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-04-08 17:03:38 +02:00
parent 8dfbc1c5cf
commit 1d80c8db27
1 changed files with 9 additions and 2 deletions
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11
libavcodec/ffv1.c
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@ -1065,8 +1065,15 @@ static av_cold int encode_init(AVCodecContext *avctx)
}
if(s->version>1){
s->num_h_slices=2;
s->num_v_slices=2;
for(s->num_v_slices=2; s->num_v_slices<9; s->num_v_slices++){
for(s->num_h_slices=s->num_v_slices; s->num_h_slices<2*s->num_v_slices; s->num_h_slices++){
if(avctx->slices == s->num_h_slices * s->num_v_slices && avctx->slices <= 64)
goto slices_ok;
}
}
av_log(avctx, AV_LOG_ERROR, "Unsupported number %d of slices requested\n", avctx->slices);
return -1;
slices_ok:
write_extra_header(s);
}