<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div><span></span></div><div><span></span><br><blockquote type="cite"><span>On 28 Sep 2013, at 6:07 pm, "John Pilkington" <<a href="mailto:J.Pilk@tesco.net">J.Pilk@tesco.net</a>> wrote:</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><blockquote type="cite"><span>On 28/09/13 04:26, Mark Perkins wrote:</span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>On 28 Sep 2013, at 3:58 am, "John Finlay" <<a href="mailto:finlay@moeraki.com">finlay@moeraki.com</a>> wrote:</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>On 9/27/2013 11:11 AM, Raymond Wagner wrote:</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>On 9/27/2013 12:40 PM, John Finlay wrote:</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Since lossless transcode in 0.27 seems broken in my tests what alternatives do you use to losslessly cut out commercials, etc.?</span><br></blockquote></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Is this a recent issue? It was working fine for me a few months back on the 0.27 developmental builds.</span><br></blockquote></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Recent for me since I just upgraded to 0.27 and tried the lossless transcode. For example the original file is seen by ffmpeg like:</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Input #0, mpegts, from '1071_20130925050000.mpg':</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span> Duration: 00:59:57.84, start: 8442.162544, bitrate: 10573 kb/s</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span> Stream #0.0[0x31]: Video: mpeg2video (Main), yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 13216 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span> Stream #0.1[0x34](eng): Audio: ac3, 48000 Hz, 5.1, s16, 384 kb/s</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span> Stream #0.2[0x35](spa): Audio: ac3, 48000 Hz, mono, s16, 128 kb/s (visual impaired)</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>and after the lossless transcode:</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span></span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>Input #0, mpeg, from '1071_20130925050000.mpg':</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span> Duration: 37:10:28.62, start: 0.316133, bitrate: 191 kb/s</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span> Stream #0.0[0x1e0]: Video: mpeg2video (Main), yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 13216 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span> Stream #0.1[0x80]: Audio: ac3, 48000 Hz, 5.1, s16, 384 kb/s</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span> Stream #0.2[0x81]: Audio: ac3, 48000 Hz, mono, s16, 128 kb/s (visual impaired)</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><blockquote type="cite"><span>[Mark] I had that exact problem on 0.26 (I assume by lossless transcode you mean mythtranscode). Searching previous threads I couldn't find a solution although there did seem to be a small number of people with the same issue. I gave up (after 100's of hrs of testing different things - I just couldn't nail it down) and ended up moving to dvbcut (I think it's called from memory) with the projectx cut switch. Note that dvbcut is not frame accurate. I haven't re-tried since moving to 0.27 but it is on the list of things to do. I also tried lossless_cut but always ended up with audio / video out of sync.</span><br></blockquote></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>It wasn't clear to me what bad effects you were seeing, although clearly ffmpeg has a problem with the final bitrate.</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><span>[Mark] Yes, I didn't specify. I think it is actually mostly now getting covered in the other thread (</span><a href="http://www.mythtv.org/pipermail/mythtv-users/2013-September/354074.html">http://www.mythtv.org/pipermail/mythtv-users/2013-September/354074.html</a>)- but incorrect bit rate and subsequent processing failing. On a file that had commercials cut using mythtranscode:</div><div><span>- ProjectX would terminate randomly at one of the cuts and only partially output.</span><br><span>- Handbrake would occasionally (1 in 3) output a file with no video</span><br><span>- AVIDemux would produce file with audio / video sync progressively deteriorating. 25min show with only 2 cuts was not too bad but by the end of a 2hr movie with lots of commercials it might be nearly 1sec different.</span><br><span>If I recall correctly MythTV would play the mythtranscoded file with no issue, it was only post processing that caused all the headaches although as said before the bit rate metadata appeared corrupted.</span><br><span></span><br><blockquote type="cite"><span>Mark may have been referring to my script at <a href="http://www.mythtv.org/wiki/MythDVBcut">http://www.mythtv.org/wiki/MythDVBcut</a>,</span><br></blockquote><span></span><br><span>[Mark] Correct.</span><br><span></span><br><blockquote type="cite"><span>but that apparently needs to be configured to create MKV output if used with HD mpeg2 recordings. You might find this link useful, though. I haven't seen an update.</span></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span><a href="http://www.gossamer-threads.com/lists/mythtv/users/547560#547560">http://www.gossamer-threads.com/lists/mythtv/users/547560#547560</a></span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>John P</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>_______________________________________________</span><br></blockquote><blockquote type="cite"><span>mythtv-users mailing list</span><br></blockquote><blockquote type="cite"><span><a href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a></span><br></blockquote><blockquote type="cite"><span><a href="http://www.mythtv.org/mailman/listinfo/mythtv-users">http://www.mythtv.org/mailman/listinfo/mythtv-users</a></span><br></blockquote></div></body></html>