Re: [Mjpeg-users] mplex not splitting output as requested
Hi all, There is currently a bug in the handling of sequence end marker / I-frames alignmnet constraints. Markers/I-frames can be missed if they are preceded by a B or P frame that is smaller than a single progream stream sector. I am currently working on this issue and should have a fix ready this evening. cheers, Andrew --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click ___ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
Re: [Mjpeg-users] mplex not splitting output as requested
Hallo > > Which version of the mjpegtools do you use ? > I am using mjpegtools-1.6.2 on a Gentoo Linux box. Ok. > > > $ transcode -V -i o.rei.leao.avi -y mpeg2enc,null \ > > > -w 2800 --export_asr 2 \ > > > -F '5,-s -B 285 -V 230 -S 804 -4 2 -2 1 -q 4 -K hi-res -E -8 -R 0' \ > > > -o o.rei.leao.cd \ > > > -a 1 -b 224,0,5 --a52_dolby_off -J astat=o.rei.leao.cd.scl \ > > > -Z 480x368 -Y -56,0 > > I cant tell for the transcode command, but -S 804 and -B 285 should do > > the thing. > > Can you run it a way so the command trancode execute is shown ? > > transcode shows the command line used to call mpeg2enc. From > my log file I get: > > [export_mpeg2enc.so] cmd=mpeg2enc -v 0 -I 0 -q 3 -f 5 -4 2 -2 3 -b 2800 -F 1 -n n > -a 2 -V 230 -o "o.rei.leao.cd.m2v" -s -B 285 -V 230 -S 804 -4 2 -2 1 -q 4 -K hi-res > -E -8 -R 0 > > (Remember that when an option appears more than one > in the mpeg2enc command line, the latest one is > used.) I do not have to like what how transcode "extends" the options. > > I think transcode is doing something wrong because mpeg when you run > > mpeg2enc it splits by default a 700MB. > > You see this when mpeg2enc start in that 2 lines: > >INFO: [mpeg2enc] New Sequence every 700 Mbytes > >INFO: [mpeg2enc] Assuming non-video stream of 230 Kbps > > transcode adds the option "-v 0" to the mpeg2enc command line, > as you can see. Adding the "-v 1" option myself to mpeg2enc > command line (through the "-F" option of transcode), I can > see the following in the log: > >INFO: [mpeg2enc] New Sequence every 804 Mbytes >INFO: [mpeg2enc] Assuming non-video stream of 285 Kbps That lookes correct. > So the problem should not be with transcode, as mpeg2enc > knows that it should start a new sequence every 804 Mbytes. My problem is that mplex splits it exact at that point with you command. Where I set it (40MB) because I don't have such a large video arround. When you encode with -V 1 take a look at the last lines. If mpeg2enc sets a split point it starts to number that frame with 0, so the framenumber mpeg2enc prints out is much smaller than the aboslute number of frames. > Everything indicates that there is a bug in > mpeg2enc. Maybe the developers could take > a look. You can prove that by providing the framenumbers. And the mplex output. auf hoffentlich bald, Berni the Chaos of Woodquarter Email: [EMAIL PROTECTED] www: http://www.lysator.liu.se/~gz/bernhard --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click ___ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
Re: [Mjpeg-users] mplex not splitting output as requested
On Sat, Mar 13, 2004 at 06:04:18PM +0100, Bernhard Praschinger wrote: > Hallo > > > I am making a (non-standard) SVCD from an AVI file > > using transcode, mpeg2enc, toolame and mplex with > > the commands > Which version of the mjpegtools do you use ? I am using mjpegtools-1.6.2 on a Gentoo Linux box. > > $ transcode -V -i o.rei.leao.avi -y mpeg2enc,null \ > > -w 2800 --export_asr 2 \ > > -F '5,-s -B 285 -V 230 -S 804 -4 2 -2 1 -q 4 -K hi-res -E -8 -R 0' \ > > -o o.rei.leao.cd \ > > -a 1 -b 224,0,5 --a52_dolby_off -J astat=o.rei.leao.cd.scl \ > > -Z 480x368 -Y -56,0 > I cant tell for the transcode command, but -S 804 and -B 285 should do > the thing. > Can you run it a way so the command trancode execute is shown ? transcode shows the command line used to call mpeg2enc. From my log file I get: [export_mpeg2enc.so] cmd=mpeg2enc -v 0 -I 0 -q 3 -f 5 -4 2 -2 3 -b 2800 -F 1 -n n -a 2 -V 230 -o "o.rei.leao.cd.m2v" -s -B 285 -V 230 -S 804 -4 2 -2 1 -q 4 -K hi-res -E -8 -R 0 (Remember that when an option appears more than one in the mpeg2enc command line, the latest one is used.) > I think transcode is doing something wrong because mpeg when you run > mpeg2enc it splits by default a 700MB. > You see this when mpeg2enc start in that 2 lines: >INFO: [mpeg2enc] New Sequence every 700 Mbytes >INFO: [mpeg2enc] Assuming non-video stream of 230 Kbps transcode adds the option "-v 0" to the mpeg2enc command line, as you can see. Adding the "-v 1" option myself to mpeg2enc command line (through the "-F" option of transcode), I can see the following in the log: INFO: [mpeg2enc] New Sequence every 804 Mbytes INFO: [mpeg2enc] Assuming non-video stream of 285 Kbps So the problem should not be with transcode, as mpeg2enc knows that it should start a new sequence every 804 Mbytes. > > $ mplex -f 5 -V -o o.rei.leao.cd.%d.mpg \ > > o.rei.leao.cd.m2v o.rei.leao.cd.mp2 > That command lokkes nice too. > > > $ ls -l *.cd.* > > -rw-r--r-- 1 romildo romildo 1211728952 Mar 13 03:57 o.rei.leao.cd.1.mpg > > -rw-r--r-- 1 romildo romildo 1041265749 Mar 13 01:09 o.rei.leao.cd.m2v > > -rw-r--r-- 1 romildo romildo 149317056 Mar 13 03:55 o.rei.leao.cd.mp2 > > -rw-r--r-- 1 romildo romildo 6 Mar 13 01:09 o.rei.leao.cd.scl > > > > I hoped the resulting MPG file being splitted into > > 2 files of size 804M, as I have been doing with many > > other movies, but it was not. Any reasons for that? > You need to provide more inforamtion about what transcode does. And the > options mpeg2enc really gets. See above. > On the other Hand I would recommend you to take a look at the mjpeg-peg > howto, section: "Decoding streams with mplayer" > A other nice and fast way to transcode streams. I have already done some SVCDs using mplayer, but I prefer to be with transcode now. It is easier ans faster. It is the second time I find the described problem. Both problems were solved by modifying some options. In this case changing the sequence length to 800 worked. (I have also omitted the "-E -8" option.) Everything indicates that there is a bug in mpeg2enc. Maybe the developers could take a look. Regards. Romildo --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click ___ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
Re: [Mjpeg-users] mplex not splitting output as requested
Hallo > I am making a (non-standard) SVCD from an AVI file > using transcode, mpeg2enc, toolame and mplex with > the commands Which version of the mjpegtools do you use ? > $ transcode -V -i o.rei.leao.avi -y mpeg2enc,null \ > -w 2800 --export_asr 2 \ > -F '5,-s -B 285 -V 230 -S 804 -4 2 -2 1 -q 4 -K hi-res -E -8 -R 0' \ > -o o.rei.leao.cd \ > -a 1 -b 224,0,5 --a52_dolby_off -J astat=o.rei.leao.cd.scl \ > -Z 480x368 -Y -56,0 I cant tell for the transcode command, but -S 804 and -B 285 should do the thing. Can you run it a way so the command trancode execute is shown ? I think transcode is doing something wrong because mpeg when you run mpeg2enc it splits by default a 700MB. You see this when mpeg2enc start in that 2 lines: INFO: [mpeg2enc] New Sequence every 700 Mbytes INFO: [mpeg2enc] Assuming non-video stream of 230 Kbps > $ mplex -f 5 -V -o o.rei.leao.cd.%d.mpg \ > o.rei.leao.cd.m2v o.rei.leao.cd.mp2 That command lokkes nice too. > $ ls -l *.cd.* > -rw-r--r-- 1 romildo romildo 1211728952 Mar 13 03:57 o.rei.leao.cd.1.mpg > -rw-r--r-- 1 romildo romildo 1041265749 Mar 13 01:09 o.rei.leao.cd.m2v > -rw-r--r-- 1 romildo romildo 149317056 Mar 13 03:55 o.rei.leao.cd.mp2 > -rw-r--r-- 1 romildo romildo 6 Mar 13 01:09 o.rei.leao.cd.scl > > I hoped the resulting MPG file being splitted into > 2 files of size 804M, as I have been doing with many > other movies, but it was not. Any reasons for that? You need to provide more inforamtion about what transcode does. And the options mpeg2enc really gets. On the other Hand I would recommend you to take a look at the mjpeg-peg howto, section: "Decoding streams with mplayer" A other nice and fast way to transcode streams. auf hoffentlich bald, Berni the Chaos of Woodquarter Email: [EMAIL PROTECTED] www: http://www.lysator.liu.se/~gz/bernhard --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click ___ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
[Mjpeg-users] mplex not splitting output as requested
Hello. I am making a (non-standard) SVCD from an AVI file using transcode, mpeg2enc, toolame and mplex with the commands $ transcode -V -i o.rei.leao.avi -y mpeg2enc,null \ -w 2800 --export_asr 2 \ -F '5,-s -B 285 -V 230 -S 804 -4 2 -2 1 -q 4 -K hi-res -E -8 -R 0' \ -o o.rei.leao.cd \ -a 1 -b 224,0,5 --a52_dolby_off -J astat=o.rei.leao.cd.scl \ -Z 480x368 -Y -56,0 $ transcode -i o.rei.leao.avi -y null,toolame \ -a 1 -b 224,0,5 --a52_dolby_off \ -s 1.155 -m o.rei.leao.cd -Z 480x368 -Y -56,0 $ mplex -f 5 -V -o o.rei.leao.cd.%d.mpg \ o.rei.leao.cd.m2v o.rei.leao.cd.mp2 $ ls -l *.cd.* -rw-r--r-- 1 romildo romildo 1211728952 Mar 13 03:57 o.rei.leao.cd.1.mpg -rw-r--r-- 1 romildo romildo 1041265749 Mar 13 01:09 o.rei.leao.cd.m2v -rw-r--r-- 1 romildo romildo 149317056 Mar 13 03:55 o.rei.leao.cd.mp2 -rw-r--r-- 1 romildo romildo 6 Mar 13 01:09 o.rei.leao.cd.scl I hoped the resulting MPG file being splitted into 2 files of size 804M, as I have been doing with many other movies, but it was not. Any reasons for that? Romildo --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click ___ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
