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| author | Paul B Mahol <onemda@gmail.com> | 2013-04-29 13:31:04 +0000 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2013-04-29 19:27:15 +0000 |
| commit | 32d464121959389bd266abe232896da09bbf2bd5 (patch) | |
| tree | 0534515934487595f4cf6637598aa0977e36b764 /libavfilter/avf_showspectrum.c | |
| parent | 22a86492ecd1f33506a960bc6af7b1a508998510 (diff) | |
| download | ffmpeg-32d464121959389bd266abe232896da09bbf2bd5.tar.gz | |
lavfi/showspectrum: fix crash in case of negative linesize
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Diffstat (limited to 'libavfilter/avf_showspectrum.c')
| -rw-r--r-- | libavfilter/avf_showspectrum.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/libavfilter/avf_showspectrum.c b/libavfilter/avf_showspectrum.c index 058f22c919..7cd75dfe0d 100644 --- a/libavfilter/avf_showspectrum.c +++ b/libavfilter/avf_showspectrum.c @@ -211,9 +211,11 @@ static int config_output(AVFilterLink *outlink) if (!outpicref) return AVERROR(ENOMEM); outlink->sample_aspect_ratio = (AVRational){1,1}; - memset(outpicref->data[0], 0, outlink->h * outpicref->linesize[0]); - memset(outpicref->data[1], 128, outlink->h * outpicref->linesize[1]); - memset(outpicref->data[2], 128, outlink->h * outpicref->linesize[2]); + for (i = 0; i < outlink->h; i++) { + memset(outpicref->data[0] + i * outpicref->linesize[0], 0, outlink->w); + memset(outpicref->data[1] + i * outpicref->linesize[1], 128, outlink->w); + memset(outpicref->data[2] + i * outpicref->linesize[2], 128, outlink->w); + } } if (showspectrum->xpos >= outlink->w) |