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avfilter/vsrc_testsrc: smpte(hd)bars: fix uninitialized last rows and columns of chroma planes

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For cases width and/or height is not multiple of chroma subsamplings.
This commit is contained in:
Paul B Mahol 2015-08-10 11:17:52 +02:00
parent 10ea06b3bb
commit 7a7ca3cc2f
1 changed files with 3 additions and 3 deletions
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6
libavfilter/vsrc_testsrc.c
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@ -843,7 +843,7 @@ static const uint8_t black4[4] = { 25, 128, 128, 255 };
static const uint8_t neg2[4] = { 12, 128, 128, 255 }; static const uint8_t neg2[4] = { 12, 128, 128, 255 };
static void draw_bar(TestSourceContext *test, const uint8_t color[4], static void draw_bar(TestSourceContext *test, const uint8_t color[4],
unsigned x, unsigned y, unsigned w, unsigned h, int x, int y, int w, int h,
AVFrame *frame) AVFrame *frame)
{ {
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format); const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
@ -865,9 +865,9 @@ static void draw_bar(TestSourceContext *test, const uint8_t color[4],
if (plane == 1 || plane == 2) { if (plane == 1 || plane == 2) {
px = x >> desc->log2_chroma_w; px = x >> desc->log2_chroma_w;
pw = w >> desc->log2_chroma_w; pw = FF_CEIL_RSHIFT(w, desc->log2_chroma_w);
py = y >> desc->log2_chroma_h; py = y >> desc->log2_chroma_h;
ph = h >> desc->log2_chroma_h; ph = FF_CEIL_RSHIFT(h, desc->log2_chroma_h);
} else { } else {
px = x; px = x;
pw = w; pw = w;