On Thu, 30 Jun 2005, Dave Chapman wrote: > [EMAIL PROTECTED] wrote: > > > > $ sox -V > > sox: Version 12.17.7 > > Checking the sox ChangeLog, I found this: > > sox-12.17.8 > ----------- > o "-x" option was being ignored since 12.17.7. > > So it looks like a bug in 12.17.7 - you should upgrade to 12.17.8 and > that should fix it. Thanks for this information. > > I now swapped the bytes myself and now the mpeg file is ok. Any > > suggestions for the best video rate with pcm audio? > > At the moment I use this mpeg2enc options: > > -M3 -a2 -q4 -f8 -b8192 -np -F3 -I1 -21 -41 -r16 -N1.0 -Khi-res -D10 -s -c -P > > > > But the burned result skips some video frames when playing it on a > > normal dvd player. Ton is ok. > > Limiting the bitrate to about 8Mbit/s (which you have done) should be > fine. If the peak bitrate is less than that you should be fine. > > Does mplex give you any error messages or warnings about buffer > underflows? What are the average and peak bitrates it displays when it > finishes running? $ mplex -S 0 -f 8 -V -o NAME.mpg NAME.lpcm NAME.m2v INFO: [mplex] mplex version 1.6.2 (2.2.3 $Date: 2004/01/13 20:45:26 $) INFO: [mplex] File movie.lpcm looks like an LPCM Audio stream. INFO: [mplex] File movie.m2v looks like an MPEG Video stream. INFO: [mplex] Video stream 0: profile 8 selected - ignoring non-standard opti ons! INFO: [mplex] Found 1 audio streams and 1 video streams INFO: [mplex] Selecting dvdauthor DVD output profile INFO: [mplex] Multiplexing video program stream! INFO: [mplex] Scanning for header info: LPCM Audio stream 00 (movie.lpcm) INFO: [mplex] LPCM AUDIO STREAM: INFO: [mplex] Bit rate : 192000 bytes/sec (1536000) bit/sec) INFO: [mplex] Channels : 2 INFO: [mplex] Bits per sample: 16 INFO: [mplex] Frequency : 48000 Hz INFO: [mplex] Scanning for header info: Video stream e0 (movie.m2v) INFO: [mplex] VIDEO STREAM: e0 INFO: [mplex] Frame width : 720 INFO: [mplex] Frame height : 576 INFO: [mplex] Aspect ratio : 4:3 display INFO: [mplex] Picture rate : 25.000 frames/sec INFO: [mplex] Bit rate : 8192000 bits/sec INFO: [mplex] Vbv buffer size : 229376 bytes INFO: [mplex] CSPF : 0 INFO: [mplex] SYSTEMS/PROGRAM stream: INFO: [mplex] rough-guess multiplexed stream data rate : 9928648 INFO: [mplex] target data-rate specified : 10080000 INFO: [mplex] Setting specified specified data rate: 10080000 INFO: [mplex] Run-in Sectors = 89 Video delay = 13019 Audio delay = 16619 INFO: [mplex] New sequence commences... INFO: [mplex] Audio bd: buf= 59392 frame=000000 sector=00000000 INFO: [mplex] Video e0: buf= 237568 frame=000000 sector=00000000 INFO: [mplex] Scanned to end AU 72250 INFO: [mplex] STREAM bd completed @ frame 1734023. INFO: [mplex] STREAM e0 completed @ frame 72250. INFO: [mplex] Multiplex completion at SCR=260095414. INFO: [mplex] Audio bd: buf= 6272 frame=1734023 sector=00276339 INFO: [mplex] Video e0: buf= 38162 frame=072250 sector=01282262 INFO: [mplex] AUDIO_STATISTICS: bd INFO: [mplex] Audio stream length 554887680 bytes. INFO: [mplex] Frames : 1734023 INFO: [mplex] BUFFERING min 32 Buf max 23544 INFO: [mplex] VIDEO_STATISTICS: e0 INFO: [mplex] Video Stream length: 2591624407 bytes INFO: [mplex] Sequence headers: 4849 INFO: [mplex] Sequence ends : 1 INFO: [mplex] No. Pictures : 72250 INFO: [mplex] No. Groups : 4849 INFO: [mplex] No. I Frames : 4849 avg. size 55408 bytes INFO: [mplex] No. P Frames : 67402 avg. size 34464 bytes INFO: [mplex] No. B Frames : 0 avg. size 0 bytes INFO: [mplex] Average bit-rate : 7173600 bits/sec INFO: [mplex] Peak bit-rate : 8804400 bits/sec INFO: [mplex] BUFFERING min 15 Buf max 139661 INFO: [mplex] MUX STATUS: no under-runs detected.
So peak bit-rate is OK. Oliver ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
