Normally the aic decoder finds the proper slice combination (multiple of
some number less than 32) but in case of odd width, it resorts to the
default values, which were actually swapped.
The number of slices is modified to account for such odd width cases.
---
Thanks to Kostya for the helpful guidance.
Vittorio
libavcodec/aic.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/aic.c b/libavcodec/aic.c
index dac9d8b..5687dbe 100644
--- a/libavcodec/aic.c
+++ b/libavcodec/aic.c
@@ -434,8 +434,8 @@ static av_cold int aic_decode_init(AVCodecContext *avctx)
ctx->mb_width = FFALIGN(avctx->width, 16) >> 4;
ctx->mb_height = FFALIGN(avctx->height, 16) >> 4;
- ctx->num_x_slices = 16;
- ctx->slice_width = ctx->mb_width / 16;
+ ctx->num_x_slices = (ctx->mb_width + 15) >> 4;
+ ctx->slice_width = 16;
for (i = 1; i < 32; i++) {
if (!(ctx->mb_width % i) && (ctx->mb_width / i < 32)) {
ctx->slice_width = ctx->mb_width / i;
--
1.9.3 (Apple Git-50)
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