Try to use ffmpeg instead of libav : https://answers.launchpad.net/openshot/+faq/1040 and https://answers.launchpad.net/openshot/+faq/2645
Try to use ffmpeg instead of libav : https:/ /answers. launchpad. net/openshot/ +faq/1040 and https:/ /answers. launchpad. net/openshot/ +faq/2645