Re: [transcode-users] Having trouble extracting ac3 from dvd
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi, 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. Can I ask some guidance on my obvious failure? I drew most of the syntax from the Transcode FAQs: How can I save the audio track of a DVD directly to a WAVE file suitable for burning onto an Audio CD? http://www.transcoding.org/cgi-bin/transcode?Transcode_FAQ +- 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? I am not sure if -A is supported for your task, try to skip it. - -- bye maik -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFJkrPk0Bn175Anq4gRAoF1AJ4wzbJifzz3TC8vWmD07XOqGGU8LwCdGcgR OQOHU9ZBNK+rSDvV6AWaeRw= =UPy8 -END PGP SIGNATURE-
Re: [transcode-users] Tcrequant breakthrough!
John Pilkington wrote: I haven't investigated this idea, but might the problem here be a result of using tcrequant on an input stream rather than a file? I've tried both, it doesn't make a difference. I just used a pipeline to make things a bit more compact in this example case, it will do the same thing if you use an intermediate file. -- /* * * Otto J. Makela o...@iki.fi * * * * * * * * * * * * * * * */ /* Phone: +358 40 765 5772, FAX: +358 42 7655772, ICBM: 60N 25E */ /* Mail: Mechelininkatu 26 B 27, FI-00100 Helsinki, FINLAND */ /* * * Computers Rule 0100 01001011 * * * * * * * * * * * * */
Re: [transcode-users] Having trouble extracting ac3 from dvd
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 21 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 (7680.00) [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?
Re: [transcode-users] Having trouble extracting ac3 from dvd
It's fairly explanatory. You first off did not use the same syntax as was provided to you. the -x and -y params are a pair. First is video, second is audio codec. So transcode -x null,ac3 -y null,ac3 is more likely your candidate there. Plus read the man page for the params for -N. You are specifically telling it what type of audio is in the audio. I wish I could provide more specific examples myself, however I am having difficulty building transcode... having a problem linking tcmodinfo. -Mishehu andrew wrote: 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 21 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 (7680.00) [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
Re: [transcode-users] Having trouble extracting ac3 from dvd
On Wed, Feb 11, 2009 at 06:37:20PM -0600, Mishehu Mashehu wrote: It's fairly explanatory. You first off did not use the same syntax as was provided to you. the -x and -y params are a pair. First is video, second is audio codec. So transcode -x null,ac3 -y null,ac3 is more likely your candidate there. Plus read the man page for the params for -N. You are specifically telling it what type of audio is in the audio. Thanks again. I have achieved a degree of success although I am not sure if I am going about this the long way. Still using -x null,dvd as I assume I need the dvd import module? Anyway success from: transcode -x null,dvd -i /dev/dvd -T 1,3,1 -a 0 -N 0x2000 \ -y null,tcaud -m $HOME/Desktop/test.ac3 Any suggestions or corrections to the above? Andrew -- Do you think that's air you're breathing?
