[MEncoder-users] x264 file playback is too slow!
mencoder at lesshaste.plus.com
Thu Mar 23 21:25:50 CET 2006
>>> 1) I don't see how to do the equivalent of -endpos 120
>> Add '-frames X', where X is '<FPS of source file> * 120'.
>>> 2) It runs very slowly and is generally rather odd. Here is the full
>>> mplayer -v output attached. See how it complains that I don't have
>>> -vo null etc.
>> No, I don't see where it does that.
> [AO PCM] Info: Faster dumping is achieved with -vc null -vo null
> I see now that this is simply confusing rather than wrong :)
>> The only messages I see involving the word 'null' are standard,
>> unremarkable (if overly verbose) status information. The only
>> complaining messages I see in the initialization section are the ones
>> involving trying to detect various container formats and failing on the
>> first several (which makes sense, since the file isn't in any of those
>> formats). The only message I see in the initialization section which you
>> might - or might not - want to pay any attention to is the informational
>> one about the "waveheader" suboption.
>>> and then says my system is too slow to play the file!
>> This is quite strange, since with '-vo null' and '-vc null' you have
>> eliminated two of the biggest CPU-hogging parts of playback. The only
>> remaining plausible cause I can think of offhand is slow media - in
>> other words, that the drive you are reading the file from is not
>> providing the data to MPlayer quickly enough, and MPlayer's internal
>> buffers are emptying out. To work around this, the only thing I know of
>> which you can do which is not too complicated for me to go over on a
>> mailing list is play around with the '-cache' option.
> Well.. it is really very odd as
> a) This file is on my hard drive
> b) I can play the file normally in mplayer without getting any speed
> c) mencoder k3b_image.iso -oac pcm -ovc frameno -endpos 120 -o k3b.wav
> decodes the entire dvd sized file in minutes without any warnings.
Ahem... I meant
mencoder k3b_image.iso -oac pcm -ovc frameno -o k3b.wav
decodes the entire dvd sized file in minutes without any warnings.
More information about the MEncoder-users