cmdutils: move grow_array() from avconv to cmdutils.

This commit is contained in:
Anton Khirnov 2011-08-29 07:11:57 +02:00
parent dad09ff93f
commit cac651c834
4 changed files with 29 additions and 40 deletions

View file

@ -931,4 +931,23 @@ int get_filtered_video_frame(AVFilterContext *ctx, AVFrame *frame,
return 1;
}
void *grow_array(void *array, int elem_size, int *size, int new_size)
{
if (new_size >= INT_MAX / elem_size) {
av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
exit_program(1);
}
if (*size < new_size) {
uint8_t *tmp = av_realloc(array, new_size*elem_size);
if (!tmp) {
av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
exit_program(1);
}
memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
*size = new_size;
return tmp;
}
return array;
}
#endif /* CONFIG_AVFILTER */