Opened 10 years ago
Last modified 10 years ago
#2160 new defect
-of rawaudio works wrong under certain circumstances
| Reported by: | Owned by: | reimar | |
|---|---|---|---|
| Priority: | normal | Component: | mencoder |
| Version: | HEAD | Severity: | major |
| Keywords: | Cc: | ||
| Blocked By: | Blocking: | ||
| Reproduced by developer: | no | Analyzed by developer: | no |
Description (last modified by )
Sometimes (with some files), command line "mencoder "temp.avi" -ovc frameno -oac copy -o "temp.aac" -mc 0 -noskip -of rawaudio" will result in audio being 510-512ms instead of full duration. This happens, if "temp.avi" is generated with command line "mencoder -demuxer mkv "input_file_path" -o temp.avi -vf ass,scale=480:272,harddup -af channels=2 -srate 44100 -oac faac -faacopts br=128:mpeg=4:object=2 -ovc x264 -ffourcc avc1 -x264encopts me=umh:level_idc=13:keyint=250:frameref=2:bframes=0:threads=auto:profile=main:rc_lookahead=60:crf=20 -aspect 16:9 -mc 0 -ass". However, this will not happen, if you add -noskip to the above command line so that it becomes "mencoder -demuxer mkv "input_file_path" -o temp.avi -vf ass,scale=480:272,harddup -af channels=2 -srate 44100 -oac faac -faacopts br=128:mpeg=4:object=2 -ovc x264 -ffourcc avc1 -x264encopts me=umh:level_idc=13:keyint=250:frameref=2:bframes=0:threads=auto:profile=main:rc_lookahead=60:crf=20 -aspect 16:9 -mc 0 -ass -noskip".
Problem with this approach, is that if I use -noskip, on some files http://bugzilla.mplayerhq.hu/show_bug.cgi?id=2147 will occur. And yeah, I use same command line on lots of files and it works relatively well with exceptions like this and bug 2147
File to test this one:
Seeded torrent http://www.nyaa.se/?page=view&tid=490983
Change History (5)
comment:1 by , 10 years ago
comment:2 by , 10 years ago
comment:3 by , 10 years ago
Yeah, -noskip can "fix" but then again, http://bugzilla.mplayerhq.hu/show_bug.cgi?id=2147 occurs on some of the files. Would be nice if you checked both this one and 2147.
But since MPlayer had this issue and got fixed, then I assume it shouldn't be hard to fix it in MEncoder.
comment:4 by , 10 years ago
| Analyzed by developer: | unset |
|---|---|
| Description: | modified (diff) |
| Reproduced by developer: | unset |
I have not checked but I suspect mencoder still has the same issue as MPlayer once had: It finishes once either audio or video is done, and in this case it thinks the video finishes a lot before the audio. -noskip can "fix" that when this happens due to specific issues with the file.