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lavfi/testsrc: use int in place of unsigned

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Avoid implicit int->unsigned conversion, causing invalid access in case
of negative linesize.

Fix crash with:
ffplay -f lavfi testsrc,vflip
This commit is contained in:
Stefano Sabatini 2013-04-17 21:21:10 +02:00
parent 5229b78371
commit 7ab6312610
1 changed files with 4 additions and 4 deletions
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8
libavfilter/vsrc_testsrc.c
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@ -322,8 +322,8 @@ AVFILTER_DEFINE_CLASS(testsrc);
* @param w width of the rectangle to draw, expressed as a number of segment_width units
* @param h height of the rectangle to draw, expressed as a number of segment_width units
*/
static void draw_rectangle(unsigned val, uint8_t *dst, int dst_linesize, unsigned segment_width,
unsigned x, unsigned y, unsigned w, unsigned h)
static void draw_rectangle(unsigned val, uint8_t *dst, int dst_linesize, int segment_width,
int x, int y, int w, int h)
{
int i;
int step = 3;
@ -337,8 +337,8 @@ static void draw_rectangle(unsigned val, uint8_t *dst, int dst_linesize, unsigne
}
}
static void draw_digit(int digit, uint8_t *dst, unsigned dst_linesize,
unsigned segment_width)
static void draw_digit(int digit, uint8_t *dst, int dst_linesize,
int segment_width)
{
#define TOP_HBAR 1
#define MID_HBAR 2