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ffprobe: fix uninitialized variable warning
Fix warning: ffprobe.c:1684:21: warning: ‘start’ may be used uninitialized in this function [-Wmaybe-uninitialized] end = start + interval->end; The warning is a false positive, since the variable is accessed only if has_start is set, and in that case start has been already set.
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@ -1636,7 +1636,7 @@ static int read_interval_packets(WriterContext *w, AVFormatContext *fmt_ctx,
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AVPacket pkt, pkt1;
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AVFrame frame;
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int ret = 0, i = 0, frame_count = 0;
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int64_t start, end = interval->end;
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int64_t start = -INT64_MAX, end = interval->end;
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int has_start = 0, has_end = interval->has_end && !interval->end_is_offset;
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av_init_packet(&pkt);
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