// If a splice frame was incorrectly marked due to poor demuxed timestamps, we
// may not actually have a splice. Here we check if any frames exist before
// the splice. In this case, just transfer all data to the output sanitizer.
// If a splice frame was incorrectly marked due to poor demuxed timestamps, we
// may not actually have a splice. Here we check if any frames exist before
// the splice. In this case, just transfer all data to the output sanitizer.