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lavfi/scale: avoid to print a NULL value in log message

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Fix possible crash occurring when libc does not support NULL printing.
This commit is contained in:
Stefano Sabatini 2012-10-31 15:45:28 +01:00
parent 09ea482d5d
commit 1b21642149
1 changed files with 2 additions and 2 deletions
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4
libavfilter/vf_scale.c
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@ -153,8 +153,8 @@ static av_cold int init(AVFilterContext *ctx, const char *args)
if (!scale->h_expr) if (!scale->h_expr)
av_opt_set(scale, "h", "ih", 0); av_opt_set(scale, "h", "ih", 0);
av_log(ctx, AV_LOG_VERBOSE, "w:%s h:%s flags:%s interl:%d\n", av_log(ctx, AV_LOG_VERBOSE, "w:%s h:%s flags:'%s' interl:%d\n",
scale->w_expr, scale->h_expr, scale->flags_str, scale->interlaced); scale->w_expr, scale->h_expr, (char *)av_x_if_null(scale->flags_str, ""), scale->interlaced);
scale->flags = SWS_BILINEAR; scale->flags = SWS_BILINEAR;
if (scale->flags_str) { if (scale->flags_str) {