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vsrc_testsrc: do not assume non-padded lines in test_fill_picture()

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In particular, fix sliding color bar with padded data, for example with
testsrc,pad=iw+200:ih.
This commit is contained in:
Stefano Sabatini 2011-10-23 23:51:33 +02:00
parent 1679a40b74
commit 42d44ec306
1 changed files with 3 additions and 2 deletions
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5
libavfilter/vsrc_testsrc.c
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@ -283,7 +283,7 @@ static void test_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
}
/* draw sliding color line */
p = data + picref->linesize[0] * height * 3/4;
p0 = p = data + picref->linesize[0] * height * 3/4;
grad = (256 * test->nb_frame * test->time_base.num / test->time_base.den) %
GRADIENT_SIZE;
rgrad = 0;
@ -311,8 +311,9 @@ static void test_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
if (grad >= GRADIENT_SIZE)
grad -= GRADIENT_SIZE;
}
p = p0;
for (y = height / 8; y > 0; y--) {
memcpy(p, p - picref->linesize[0], 3 * width);
memcpy(p+picref->linesize[0], p, 3 * width);
p += picref->linesize[0];
}