{"action":"opened","issue":{"url":"https://api.github.com/repos/synfig/synfig/issues/579","repository_url":"https://api.github.com/repos/synfig/synfig","labels_url":"https://api.github.com/repos/synfig/synfig/issues/579/labels{/name}","comments_url":"https://api.github.com/repos/synfig/synfig/issues/579/comments","events_url":"https://api.github.com/repos/synfig/synfig/issues/579/events","html_url":"https://github.com/synfig/synfig/issues/579","id":340306670,"node_id":"MDU6SXNzdWUzNDAzMDY2NzA=","number":579,"title":"Make use of hardware acceleration on machines with GPUs","user":{"login":"thekalinga","id":452518,"node_id":"MDQ6VXNlcjQ1MjUxOA==","avatar_url":"https://avatars0.githubusercontent.com/u/452518?v=4","gravatar_id":"","url":"https://api.github.com/users/thekalinga","html_url":"https://github.com/thekalinga","followers_url":"https://api.github.com/users/thekalinga/followers","following_url":"https://api.github.com/users/thekalinga/following{/other_user}","gists_url":"https://api.github.com/users/thekalinga/gists{/gist_id}","starred_url":"https://api.github.com/users/thekalinga/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/thekalinga/subscriptions","organizations_url":"https://api.github.com/users/thekalinga/orgs","repos_url":"https://api.github.com/users/thekalinga/repos","events_url":"https://api.github.com/users/thekalinga/events{/privacy}","received_events_url":"https://api.github.com/users/thekalinga/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-07-11T16:00:06Z","updated_at":"2018-07-11T16:00:06Z","closed_at":null,"author_association":"NONE","body":"**Synfig version & platform**:\r\n1.3.9, Ubuntu 14.04\r\n\r\n**Issue description**:\r\n\r\nCurrently when I try to render using synfig, the ffmpeg runs without any hardware acceleration flag\r\n\r\n`ffmpeg -f image2pipe -vcodec ppm -r 24.000000 -i pipe: -an -metadata title=\"Final Aggregate\" -vcodec libx264 -b:v 2000k -tune fastdecode -pix_fmt yuv420p -qp 0 -y /home/user/Desktop/Presentation/thread-per-connection/end-to-end-flow-test.mkv`\r\n\r\nI'm not that well versed in ffmpeg/GPUs, but from ffmpeg documentation its quite clear that passing `-hwaccel auto` will allow ffmpeg to automatically determine whether or not to use hardware acceleration is available, else we continue to use CPU for rendering. By default hardware acceleration is disabled, i.e `-hwaccel none` is assumed by `ffmpeg`\r\n\r\nI'm not sure why `auto` is not the default while rendering\r\n\r\nPlease note that I'm complete noob when it comes to synfig, ffmpeg & GPUs, yet this seems quite obvious"}}
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