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[Andy Finch <1050891@xxxxxxxxxxxxxxxxxx>]

** This bug is no longer a duplicate of bug 1050643
   changing speed of clip: preview "INVALID" + output file black

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https://bugs.launchpad.net/bugs/1050891

Title:
  changing speed of clip: preview "INVALID" + output file shows
  "INVALID"

Status in OpenShot Video Editor:
  Invalid

Bug description:
  Gentoo Linux 64bit
  openshot 1.4.2
  mlt 0.8.2
  sox 14.4.0

  I want to change the speed of a MTS (AVCHD: MPEG4 AVC, H264, 50 fps,
  1440x1080) file. When I set the speed to e.g. to 1/10 the preview
  shows INVALID and the output file is only black.

  1. Yes, it plays with ffmpeg, but only shos "invalid".
  2. Yes, it plays with melt, but only shos "invalid".
  3. ffmpeg output about the video:

  Input #0, mpeg, from 'Standardprojekt.mpeg':
    Duration: 00:00:13.48, start: 1.000000, bitrate: 2898 kb/s
      Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 16:15 DAR 4:3], 104857 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
      Stream #0:1[0x1c0]: Audio: mp2, 44100 Hz, stereo, s16, 128 kb/s
     4.78 A-V: -0.020 fd=   0 aq=  185KB vq= 2199KB sq=    0B f=0/0   f=0/0

  Starting openshot from the command line give the output see below. The
  ".MTS?0,1" file was not generated. This error occurs with any speed
  settings and also for MPEG files.

  --------
  on_mnuClipProperties_activate
  on_txtOut_value_changed
  on_cboKeyFrame_changed
  on_cboSimpleSpeed_changed
  Warning: effect not found in your version of Sox: sox:bass
  Warning: effect not found in your version of Sox: sox:echo
  Warning: effect not found in your version of Sox: sox:phaser
  Warning: effect not found in your version of Sox: sox:treble
  on_treeEffects_button_release_event
  [h264 @ 0x2fb7660] Increasing reorder buffer to 1
  [h264 @ 0x29f9b80] Increasing reorder buffer to 1
  [h264 @ 0x29b4ba0] Increasing reorder buffer to 1
  on_frmClipProperties_configure_event
  on_frmClipProperties_configure_event
  [h264 @ 0x7f43f51bb740] Increasing reorder buffer to 1
  [h264 @ 0x7f43f400a240] Increasing reorder buffer to 1
  [h264 @ 0x7f43f4ca17c0] Increasing reorder buffer to 1
  on_btnCancel_clicked
  on_mnuClipProperties_activate
  on_txtOut_value_changed
  on_cboKeyFrame_changed
  on_cboSimpleSpeed_changed
  Warning: effect not found in your version of Sox: sox:bass
  Warning: effect not found in your version of Sox: sox:echo
  Warning: effect not found in your version of Sox: sox:phaser
  Warning: effect not found in your version of Sox: sox:treble
  on_treeEffects_button_release_event
  [producer_xml] failed to load producer "/home/00191.MTS?0,1"
  on_frmClipProperties_configure_event
  on_frmClipProperties_configure_event
  on_btnCancel_clicked
  Autosaving...
  project saved! - Standardprojekt
  ------

  Thanks in advance

  Joe

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