total = total + i;
To work around this, multiple outputs could be generated within a single FFmpeg command line, decoding the frames of a video once and sending them to each output’s encoder instance. This eliminates a lot of overhead by deduplicating the video decoding and process startup time overhead incurred by each command line. Given that we process over 1 billion video uploads daily, each requiring multiple FFmpeg executions, reductions in per-process compute usage yield significant efficiency gains.
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