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mpeg2 render produces file that report 104857 kb/s as video bit rate no matter the renders bitrate setting
Sat Feb 02, 2013 1:22 pm
Anyone else have this:
If I render using the mpeg-2 settings and use different bit rate settings the resulting file always reports a bit rate of 10,4857 kbs when analyzed by ffprobe and when being imported into my DVD authoring software. Interestingly ffprobe reports two different video bit rates. One is 104857 kb/s no matter what and the other is more like the requested bit rate. eg file rendered with 1000 as the video bit rate setting ffprobe home_movies_vol24d_PAL1000.mpg avprobe version 0.8.5-4:0.8.5-0ubuntu0.12.04.1, Copyright (c) 2007-2012 the Libav developers built on Jan 24 2013 18:03:14 with gcc 4.6.3 [mpeg @ 0x99eb240] max_analyze_duration reached Input #0, mpeg, from 'home_movies_vol24d_PAL1000.mpg': Duration: 00:01:23.12, start: 1.000000, bitrate: 1268 kb/s Stream #0.0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [PAR 64:45 DAR 16:9], 104857 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0.1[0x1c0]: Audio: mp2, 48000 Hz, stereo, s16, 256 kb/s rendered at 8000 $ ffprobe home_movies_vol24d_PAL8000.mpg avprobe version 0.8.5-4:0.8.5-0ubuntu0.12.04.1, Copyright (c) 2007-2012 the Libav developers built on Jan 24 2013 18:03:14 with gcc 4.6.3 Input #0, mpeg, from 'home_movies_vol24d_PAL8000.mpg': Duration: 00:01:23.12, start: 1.000000, bitrate: 6877 kb/s Stream #0.0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [PAR 64:45 DAR 16:9], 104857 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0.1[0x1c0]: Audio: mp2, 48000 Hz, stereo, s16, 256 kb/s file rendered with 18000 bit rate $ ffprobe home_movies_vol24d_PAL18000.mpg avprobe version 0.8.5-4:0.8.5-0ubuntu0.12.04.1, Copyright (c) 2007-2012 the Libav developers built on Jan 24 2013 18:03:14 with gcc 4.6.3 Input #0, mpeg, from 'home_movies_vol24d_PAL18000.mpg': Duration: 00:01:23.12, start: 1.000000, bitrate: 7051 kb/s Stream #0.0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [PAR 64:45 DAR 16:9], 104857 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0.1[0x1c0]: Audio: mp2, 48000 Hz, stereo, s16, 256 kb/s I am guessing the files have really been encoded at different rates. File sizes are 1000 13mb 8000 71.5mb 18000 73.3mb And the 1000kbs one is more blocky than the others raised as http://www.kdenlive.org/mantis/view.php?id=2966 |
Moderator
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If I use my mpeg files rendered as described above in the windows TMGenc DVD authoring software (under Wine) they preview at a fast forward speed.
If I use the DVD wizard of kdenlive with these file is crashes out with: WARN: Skipping sector, waiting for first VOBU... ERR: SCR moves backwards, remultiplex input: 4563416160 < 4563429486 DVDAuthor process crashed. Bloody hell. Kdnelive 0.9.4 has broken my DVD creation workflow. It used to work! I would file render .dv footage to mpg and use tmpenc under wine to author DVDs |
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Ok. No. Kdelive 0.9.4 has not broken my workflow. I notice from my notes that before I was using the DVD render group to make my .mpg files for DVD authoring. Previous posts I was using the file rendering section. But now if I use DVD render group I get video that works in the DVD wizard and work in my DVD authoring tmpgenc software.
So this is another case of file rendering > mpeg2 not producing DVD compatible files. Which I think I now remember was happening with previous versions too. |
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