[mythtv-users] Announcement: Looking for Alpha testers for a generic Lossless cut solution

[Nick Rout]

On Oct 9, 2012 3:02 AM, "Doug Vaughan" <r.d.vaughan at rogers.com> wrote:
>
>   Currently the "Lossless Cut" set of utilities are available as an Alpha
release. The intent is to have MythTV users qualify their recorded videos
to determine the script's compatibility with a wide variety of recording
devices.
>
>     So far the utilities successfully performs loss less cuts on HDPVR
h.264 and UK freeview DVB-T Mpeg recordings. Hopefully with the assistance
of the MythTV community we can identify other recording devices which work
and/or have the script improved to include additional devices and their
encoding types.
>
>   Despite having various lossless cut solutions there is not one set of
utilities that can deal with the wide variety of video, audio and subtitle
formats MythTV is capable of recording. This is specifically true of h.264
encoded videos. The Lossless Cut utilities are an attempt to resolve that
limitation. It may or may not be successful, that is why I need your help.
>
> Here is Lossless Cut's feature list, hopefully it will entice you to give
it a try.
> For full details refer to the Lossless Cut wiki page at:
http://www.mythtv.org/wiki/Lossless_Cut
>
> Lossless Cut features list:
> - Supports MythTV versions 0.24+fixes and higher
> - Supports NTSC, PAL, SD, HD 720p and 1080i recordings (this claim needs
to be verified by the Alpha testers)
> - A wide variety of MythTV recorded video, audio and subtitle formats are
supported.
>   See:
http://www.mythtv.org/wiki/Lossless_Cut#Supported_Containers.2C_video_and_audio_encoding_types_and_subtitle_formats
> - Supports automatic subtitle conversion to SRT format, cut and remuxing
into the final mkv video
> - Support for recordings with multiple audio, video and subtitle tracks
> - A Debian PPA is available along with source. The PPA has the benefit of
always keeping you up to date with the latest enhancements and bug fixes.
The source tarball can be easily downloaded and installed on non-Debian
based distros. Check the wiki page's installation instructions for details.
> - Includes a userjob that adjusts commercial flag cut frames to their
closest keyframes. This speeds up manual review of commercial flagged cuts
points.
> - Supports three types of loss less cut user jobs:
>   - Export to MythVideo with grabber enhanced metadata or EPG metadata
>   - Cut and Save a mkv video file to a user specified directory
>   - In place Cut and Replace a Recording with the lossless cut mkv file
> - Full integration with the MythTV metadata grabbers including a fall
back to EPG metadata when the program cannot be found by the grabbers
>   - Uses the grabbers as specified in the MythTV settings including the
language code
> - When exported or moved, the mkv file is renamed to a customisable
format e.g. "Sanctuary - S02E01 - End of Nights (1).mkv"
> - When exported to MythVideo any missing sub directories will be
automatically created according to a customisable path and naming convention
> - The MythVideo Video storage group does not have to be on the same
backend as the recording backend. Transfer of the cut mkv file is handled
by the MythTV backend.
> - By default, metadata will be added to the mkv container (title,
subtitle, season and episode numbers, program description)
> - An included support script provides text bug reports, automated video
sample creation and wiki compatible text for adding your own recording
device to the "Supported Recording Devices" or "Unsupported Recording
Devices" table rows
> - A text configuration file provides a convenient method to customise
"lossless_cut.cfg"
> - The command line and arguments used during each step of the loss less
cut processing is added to a Log file, which is generated with every
userjob. The log file is automatically deleted if the job successfully
completes. This is essential information for problem analysis.
>
> Listed at the top of the wiki page are some of the Alpha testing needs
but feel free to test, test, test ... Remember that no software is fully
debugged until it is obsolete.
>
> I will do the best I can to improve the Lossless Cut utilities to support
as many MythTV recording devices but there is no doubt some will never be
supported.
>
> Thanks
>
> Doug

Wow this looks good. Look forward to trying this. Hdhr with h264 video. Aac
latm and ac3 audio. New Zealand.

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