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lavc/proresdec2: Fix slice_count for very high resolutions. 

QT ignores the value written in the frame header.
Issue reported by forum user Koracas.
This commit is contained in:
Carl Eugen Hoyos 2015-10-30 01:32:39 +01:00
parent 2f1d6d45af
commit bd1d67efe8
2 changed files with 5 additions and 2 deletions
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5
libavcodec/proresdec2.c
View File

@ -180,7 +180,10 @@ static int decode_picture_header(AVCodecContext *avctx, const uint8_t *buf, cons
else
ctx->mb_height = (avctx->height + 15) >> 4;
slice_count = AV_RB16(buf + 5);
// QT ignores the written value
// slice_count = AV_RB16(buf + 5);
slice_count = ctx->mb_height * ((ctx->mb_width >> log2_slice_mb_width) +
av_popcount(ctx->mb_width & (1 << log2_slice_mb_width) - 1));
if (ctx->slice_count != slice_count || !ctx->slices) {
av_freep(&ctx->slices);

2
libavcodec/version.h
View File

@ -30,7 +30,7 @@
#define LIBAVCODEC_VERSION_MAJOR 57
#define LIBAVCODEC_VERSION_MINOR 13
#define LIBAVCODEC_VERSION_MICRO 101
#define LIBAVCODEC_VERSION_MICRO 102
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
LIBAVCODEC_VERSION_MINOR, \