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avfilter/af_channelmap: disallow channel index 64 

MAX_CH is 64, therefore the maximum index is 63.

Signed-off-by: Marton Balint <cus@passwd.hu>
(cherry picked from commit 2f754a96bd)
This commit is contained in:
Marton Balint 2024-03-18 23:35:26 +01:00
parent 0deb010ae7
commit 8d1e092b24
1 changed files with 2 additions and 2 deletions
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4
libavfilter/af_channelmap.c
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@ -85,7 +85,7 @@ static char* split(char *message, char delim) {
return next;
}
static int get_channel_idx(char **map, int *ch, char delim, int max_ch)
static int get_channel_idx(char **map, int *ch, char delim, int max_nb_channels)
{
char *next;
int len;
@ -99,7 +99,7 @@ static int get_channel_idx(char **map, int *ch, char delim, int max_ch)
sscanf(*map, "%d%n", ch, &n);
if (n != len)
return AVERROR(EINVAL);
if (*ch < 0 || *ch > max_ch)
if (*ch < 0 || *ch >= max_nb_channels)
return AVERROR(EINVAL);
*map = next;
return 0;