On Wed, Feb 11, 2009 at 12:17:56PM +0100, Maik Holtkamp wrote: > 0n 09/02/0...@22:28 andrew told me: > > > Using transcode 1.1.0 with no great skill I am attempting to extract > > an ac3 stream directly from title 1, chapter 1 of a DVD.
> > and...@skamandros~$ transcode -x null,ac3 -i /dev/dvd -T1,1,1 \ > >-a 1 -A -y ac3 -o test.ac3 > > The syntax of -y is vmod[,amod]. Did you try -y null,ac3? Thanks for that, and I apologise or misunderstanding the basics. However for ac3 Transcode 1.1.0 does not like that syntax: transcode -x dvd -i /dev/dvd -T 1,3,1 -a 0 -y null,ac3 \ -E 48000 -m $HOME/Desktop/test.ac3 with the error message: [import_dvd.so] waiting... [import_dvd.so] waiting... [export_ac3.so] warning: *** This module is non-optimal *** [export_ac3.so] warning: *** Use -N 0x2000 instead of -y ...,ac3 (faster) *** [export_ac3.so] ffmpeg -y -f s16le -ac 2 -ar 48000 -i - -ab 128 -acodec ac3 /home/andrew/Desktop/test.ac3 >/dev/null 2>&1 Leaving a zero byte file. I experimented with the suggested syntax a little: transcode -x null,dvd -i /dev/dvd -T 1,3,1 -a 0 -N 0x2000 \ -E 48000 -m $HOME/Desktop/test.ac3 But while this imported well enough it did not export: [transcode] V: auto-probing | /dev/dvd (OK) [transcode] V: import format | MPEG 2 program stream in DVD PAL (module=null) [transcode] A: auto-probing | /dev/dvd (OK) [transcode] A: import format | AC3 in DVD PAL (module=dvd) [transcode] V: AV demux/sync | (1) sync AV at initial MPEG sequence [transcode] V: import frame | disabled [transcode] V: bits/pixel | 0.000 (unknown) [transcode] V: decoding fps,frc | 25.000,3 [transcode] V: video format | YUV420 (4:2:0) aka I420 [transcode] A: import format | 0x2000 AC3 [48000,16,2] [transcode] A: export | disabled [transcode] V: encoding fps,frc | 25.000,3 [transcode] A: language | en [transcode] A: bytes per frame | 7680 (7680.000000) [transcode] A: adjustment | 0...@1000 [transcode] V: IA32/AMD64 accel | sse3 sse2 sse mmx cmove asm [transcode] V: video buffer | 10 @ 0x0 [0x2] [transcode] A: audio buffer | 10 @ 48000x2x16 [import_dvd.so] v0.4.1 (2007-07-15) (video) DVD | (audio) MPEG/AC3/PCM [import_null.so] v0.2.0 (2002-01-19) (video) null | (audio) null [export_null.so] v0.1.2 (2001-08-17) (video) null | (audio) null so obviously I have this all upside down. I was tossing up whether to recompile and enable deprecated syntax but I am keen to learn the correct, newer syntax. Andrew -- Do you think that's air you're breathing?
