{"action":"created","issue":{"url":"https://api.github.com/repos/m90/seeThru/issues/21","labels_url":"https://api.github.com/repos/m90/seeThru/issues/21/labels{/name}","comments_url":"https://api.github.com/repos/m90/seeThru/issues/21/comments","events_url":"https://api.github.com/repos/m90/seeThru/issues/21/events","html_url":"https://github.com/m90/seeThru/issues/21","id":94480381,"number":21,"title":"converter not able to generate alpha channel","user":{"login":"meibegger","id":6634206,"avatar_url":"https://avatars.githubusercontent.com/u/6634206?v=3","gravatar_id":"","url":"https://api.github.com/users/meibegger","html_url":"https://github.com/meibegger","followers_url":"https://api.github.com/users/meibegger/followers","following_url":"https://api.github.com/users/meibegger/following{/other_user}","gists_url":"https://api.github.com/users/meibegger/gists{/gist_id}","starred_url":"https://api.github.com/users/meibegger/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/meibegger/subscriptions","organizations_url":"https://api.github.com/users/meibegger/orgs","repos_url":"https://api.github.com/users/meibegger/repos","events_url":"https://api.github.com/users/meibegger/events{/privacy}","received_events_url":"https://api.github.com/users/meibegger/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":5,"created_at":"2015-07-11T15:06:55Z","updated_at":"2015-07-12T10:32:38Z","closed_at":null,"body":"I exported a test-video from premiere - Quicktime with animation codec and 32bit depth.\r\nI reimported the video to the timeline, and it has an alpha channel.\r\n\r\nI also tried different export settings for the frame-rate and field-order, and not to include meta-data ...\r\n\r\nBut i always get\r\n\"An error occurred generating the alpha channel: ffmpeg exited with code 1\".\r\n\r\nffprobe output's this info:\r\n```\r\nInput #0, mov,mp4,m4a,3gp,3g2,mj2, from 'hand_v0_full_progressive_animation.mov':\r\n  Metadata:\r\n    major_brand     : qt  \r\n    minor_version   : 537199360\r\n    compatible_brands: qt  \r\n    creation_time   : 2015-07-11 13:44:59\r\n  Duration: 00:00:08.71, start: 0.000000, bitrate: 176804 kb/s\r\n    Stream #0:0(eng): Video: qtrle (rle  / 0x20656C72), bgra, 720x480, 175255 kb/s, SAR 109:120 DAR 109:80, 29.97 fps, 29.97 tbr, 30k tbn, 30k tbc (default)\r\n    Metadata:\r\n      creation_time   : 2015-07-11 13:44:59\r\n      handler_name    : Apple Alias Data Handler\r\n      encoder         : Animation\r\n      timecode        : 00:00:00;00\r\n    Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default)\r\n    Metadata:\r\n      creation_time   : 2015-07-11 13:44:59\r\n      handler_name    : Apple Alias Data Handler\r\n      timecode        : 00:00:00;00\r\n    Stream #0:2(eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)\r\n    Metadata:\r\n      creation_time   : 2015-07-11 13:45:00\r\n      handler_name    : Apple Alias Data Handler\r\n      timecode        : 00:00:00;00\r\nUnsupported codec with id 0 for input stream 2\r\n```\r\n\r\nDo you have any ideas, as to what could be wrong here? Is it this strange stream2? \r\n\r\nThanks a lot!"},"comment":{"url":"https://api.github.com/repos/m90/seeThru/issues/comments/120706703","html_url":"https://github.com/m90/seeThru/issues/21#issuecomment-120706703","issue_url":"https://api.github.com/repos/m90/seeThru/issues/21","id":120706703,"user":{"login":"m90","id":1662740,"avatar_url":"https://avatars.githubusercontent.com/u/1662740?v=3","gravatar_id":"","url":"https://api.github.com/users/m90","html_url":"https://github.com/m90","followers_url":"https://api.github.com/users/m90/followers","following_url":"https://api.github.com/users/m90/following{/other_user}","gists_url":"https://api.github.com/users/m90/gists{/gist_id}","starred_url":"https://api.github.com/users/m90/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/m90/subscriptions","organizations_url":"https://api.github.com/users/m90/orgs","repos_url":"https://api.github.com/users/m90/repos","events_url":"https://api.github.com/users/m90/events{/privacy}","received_events_url":"https://api.github.com/users/m90/received_events","type":"User","site_admin":false},"created_at":"2015-07-12T10:32:38Z","updated_at":"2015-07-12T10:32:38Z","body":"Gotta love ffmpeg.\r\n\r\nI'm not on a Mac so I have no clue what encoders are available on your machine. Could you try to find out what is available for you and try to convert your video without any further transforms. That way it'd be possible to find out if ffmpeg is able to process your video at all."}}