> >> One problem was that cinelerra ignored the pixel aspect ratio of my
> >> files.
> >> So the video was edited slightly squeezed, but in the final transcoding
> >> step with
> >> gmerlin-transcoder I could repair that.
> >
> > you do know that you can set the aspect ratio that cinelerra uses, right?
>
> Yes, but I expect that if I load a random video with correct pixel aspect
> ratio information it's not squeezed. Also cinelerra didn't confuse 4:3 and
> 16:9, it just assumed square pixels in my PAL DV format. Maybe I just
> didn't try hard enough.
Yeah, Cinelerra almost NEVER reacts as you would expect. :)
I would expect that if I load a video with ./cinelerra myvid.mov, it
would set the internal cinelerra output format to be the same as the
loaded video. However, this does not happen. Because cinelerra works
with heterogeneous media, you need to go into settings and set it to
what you want. The weird thing is that it doesn't take these settings
on immediately. You have to quit cinelerra and then start it again.
Humbug.
> > I just tried gm_transcode and it wouldn't transcode a file. The only
> > error message I got was that that the encoder failed. This doesn't
> > tell me much,....however,
>
> The log window usually tells more. If not, a better error message should be
> added. For this I need to know what exactly happened (i.e. which plugin
> with which codec with which image size you wanted to encode).
Ok, I didnt look at the log window.
I just tried the same operation now that failed before...and it is
working.
So, you are redirecting stderr to the log window?
> > I just need to learn the interfaces :)
>
> Which options do you want your users to change?
just so you know, I'm building scripting bindings in javascript for
gavl/gmerlin using mozilla's tracemonkey api.
For one, I'd like them to be able to switch between mp4 and ogg theora.
>From there, I'm not sure how to handle it. Maybe I could return a
javascript object with key value pairs for them to edit and re-submit to
the encoder.
> [...]
> > of course. It seems like we were able to squash a few bugs here an
> > there ..so cheers for that!
>
> These should be fixed as well:
>
> AC3 in AVI with libquicktime (just did the right CVS commit)
Hmm. I just did a make distclean;cvs update;./configure;make;make
install in libquicktime, gmerlin, and gmerlin_encoders
with Quictime encoder, using AVI/AC3/H264
mplayer only plays the audio
gmerlin_play hangs and says:
[GL] Warning: GLX version too old: requested >= 1.3 but
got 1.2
[gmerlin_player] Info: Name: testvideo
[h264 @ 0x202b570]no frame!
[avdecoder.ffmpeg_video] Error: Could not get initial
frame
[avdecoder.track] Error: Starting video decoder for
stream 1
failed
[player.input] Error: Starting input plugin failed
^C
with Quictime encoder, using AVI/AC3/MJPEG
works!
with Quictime encoder, using AVI/AC3/ffmpegDivx
works.
> MJPEG in AVI with e_ffmpeg (colormodel issue should be fixed)
yes.
> The grey images you got with e_ffmpeg with other codecs could not
> be reproduced (there is a greyscale mode in the ffmpeg codecs, I hope this
> wasn't enabled accidentally).
>
using ffmpeg encoder AVI/AC3/MPEG4
my encoding app hangs at "[encoder] Info: Created output file
testvideo.avi"
with AVI/AC3/Divx
same as above
with AVI/AC3/Mjpeg
it encodes, but gmerlin_play only shows a black screen
and then hangs at the end.
mplayer shows a grey screen. and then goes black and hangs at
the
end.
with AVI/16pcm/Mpeg4
encoding app hangs at "[encoder] Info: Created output file
testvideo.avi"
with AVI/16pcm/Divx
same as above
with AVI/16pcm/Mjpeg
it encodes, but gmerlin_play only shows a black screen
and then hangs at the end.
mplayer shows a grey screen. and then goes black
and hangs at the
end.
-august.
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