Re: two-passes in thusnelda
Zik Zak <[email protected]>
| Newsgroups | gmane.comp.multimedia.ogg.theora.devel |
|---|---|
| Message-ID | <[email protected]> |
On Sun, Aug 9, 2009 at 2:16 PM, rastersoft <[email protected]> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi all: > > I'm testing thusnelda and I'm trying to use the two-pass feature, but > when I try it with > > /usr/bin/ffmpeg2thusnelda /home/raster/Escritorio/devede/holidays\ at\ > galicia.mpg -o /home/raster/output.ogv -v 10 -a 10 --optimize > - --first-pass /home/raster/output.ogv.firstpass_data > > I receive the error > > Could not set up the first pass of two-pass mode. > Did you remember to specify an estimated bitrate? > > Does that mean that, when using two-passes, I must set a video bitrate, > and cannot rely only in the -v and -a parameters? > > I've been searching in google but can't find info about this. > > Thanks. Hi, Yes you have to use the -V switch, and you can also use the -v switch to specify a minimum quality at the same time. Encoding the sound in the firstpass is useless from what I experienced with encoder_example. I use the following: ./encoder_example --soft-target -v 7 -V 3397 --two-pass --first-pass "$VIDEO".pass stream.yuv -o "$VIDEO".ogv ./encoder_example --soft-target -v 7 -V 3397 --two-pass --second-pass "$VIDEO".pass -a -1 stream.wav stream.yuv -o "$VIDEO".ogv Regards -- ZikZak _______________________________________________ theora-dev mailing list [email protected] http://lists.xiph.org/mailman/listinfo/theora-dev