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-rw-r--r--fftools/ffmpeg_filter.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fftools/ffmpeg_filter.c b/fftools/ffmpeg_filter.c
index 068f499e0b..6518d50870 100644
--- a/fftools/ffmpeg_filter.c
+++ b/fftools/ffmpeg_filter.c
@@ -775,7 +775,7 @@ static int configure_input_video_filter(FilterGraph *fg, InputFilter *ifilter,
sar = ifilter->sample_aspect_ratio;
if(!sar.den)
sar = (AVRational){0,1};
- av_bprint_init(&args, 0, 1);
+ av_bprint_init(&args, 0, AV_BPRINT_SIZE_AUTOMATIC);
av_bprintf(&args,
"video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:"
"pixel_aspect=%d/%d:sws_param=flags=%d",