diff options
author | Michael Niedermayer <michael@niedermayer.cc> | 2018-01-24 21:38:05 +0300 |
---|---|---|
committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-01-28 17:33:09 +0300 |
commit | 2980b95fafb39148cfade120eab5c75b46bfffc6 (patch) | |
tree | 791934fc072bd00f22e2755567e04f1016535b16 /libavfilter | |
parent | 11498c22a0db9ed08027405e5d6a4ba7c1e41418 (diff) |
avfilter/vf_transpose: Fix used plane count.
Fixes out of array access
Fixes: poc.mp4
Found-by: GwanYeong Kim <gy741.kim@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c6939f65a116b1ffed345d29d8621ee4ffb32235)
(cherry picked from commit 3f621455d62e46745453568d915badd5b1e5bcd5)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavfilter')
-rw-r--r-- | libavfilter/vf_transpose.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/libavfilter/vf_transpose.c b/libavfilter/vf_transpose.c index 982fb0c8ca..3ff4cb4249 100644 --- a/libavfilter/vf_transpose.c +++ b/libavfilter/vf_transpose.c @@ -27,6 +27,7 @@ #include <stdio.h> +#include "libavutil/avassert.h" #include "libavutil/imgutils.h" #include "libavutil/internal.h" #include "libavutil/intreadwrite.h" @@ -54,6 +55,7 @@ enum TransposeDir { typedef struct TransContext { const AVClass *class; int hsub, vsub; + int planes; int pixsteps[4]; int passthrough; ///< PassthroughType, landscape passthrough mode enabled @@ -215,6 +217,10 @@ static int config_props_output(AVFilterLink *outlink) s->hsub = desc_in->log2_chroma_w; s->vsub = desc_in->log2_chroma_h; + s->planes = av_pix_fmt_count_planes(outlink->format); + + av_assert0(desc_in->nb_components == desc_out->nb_components); + av_image_fill_max_pixsteps(s->pixsteps, NULL, desc_out); @@ -272,7 +278,7 @@ static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, AVFrame *in = td->in; int plane; - for (plane = 0; out->data[plane]; plane++) { + for (plane = 0; plane < s->planes; plane++) { int hsub = plane == 1 || plane == 2 ? s->hsub : 0; int vsub = plane == 1 || plane == 2 ? s->vsub : 0; int pixstep = s->pixsteps[plane]; |