Re: [transcode-users] export_tcaud options for AC3 sound?

Eric Lavarde Wed, 14 Apr 2010 00:49:37 -0700

Hi,

back on my Linux PC:


Francesco Romani wrote:

2. Much more important, the resulting audio file is not AC3 but MP3, Iguess I'm missing the magic option for tcaud, but I couldn't find anydocumentation, not on the web, no manpage, and tcmodinfo neither.
Any clue on how to fix this?
Take a look at the -N and -A options, they may be helpful.


I added the -N 0x2000 option and get the following command now:

transcode \
        -x v4l2=resync_margin=1:resync_interval=250,oss \
        -i /dev/video0 \
        -e 48000,16,2 \
        -p /dev/dsp \
        -c 0-00:00:10 \
        -J smartyuv,pv \
        -y ffmpeg,tcaud \
        -N 0x2000 \
        --export_prof dvd-pal \
        --export_asr 2 \
        -D0 \
        -o tvrecord.m2v \
        -m tvrecord.ac3

which result in the error (full output at the end of the email):

[transcode] PCM -> AC3

codec type or id mismatches

[transcode] warning: tc_audio_init_ffmpeg: could not open mpa codec !

[encoder.c] warning: audio export module error: init failed

[transcode] critical: failed to init encoder

Any idea? Googling for it, I found the following thread:
http://www.mail-archive.com/transcode-users@exit1.org/msg02085.html
but it seems John Moe never got an answer...

Both packages are Marillat's so I would expect that they're aligned:

$ apt-cache policy transcode ffmpeg
transcode:
  Installed: 3:1.1.5-0.5
  Candidate: 3:1.1.5-0.5
  Version table:
 *** 3:1.1.5-0.5 0
        500 http://www.debian-multimedia.org squeeze/main Packages
        100 /var/lib/dpkg/status
ffmpeg:
  Installed: 5:0.5.1+svn20100321-0.0
  Candidate: 5:0.5.1+svn20100321-0.0
  Version table:
 *** 5:0.5.1+svn20100321-0.0 0
        500 http://www.debian-multimedia.org squeeze/main Packages
        100 /var/lib/dpkg/status
     4:0.5.1-3 0
        500 http://ftp.de.debian.org squeeze/main Packages

Thanks, Eric

transcode v1.1.5 (C) 2001-2003 Thomas Oestreich, 2003-2009 Transcode
Team
[transcode] V: auto-probing     | /dev/video0 (OK)

[transcode] V: import format    | (null) in  (module=v4l2)

[transcode] A: auto-probing     | /dev/dsp (OK)

[transcode] A: import format    | PCM in  (module=oss)

[transcode] V: AV demux/sync    | (1) sync AV at initial MPEG sequence

[transcode] V: import frame     | 352x288  1.22:1  encoded @ UNKNOWN

[transcode] V: pre clip frame   | 352x270 (8,0,10,0)

[transcode] V: zoom             | 720x576  1.17:1 (Lanczos3)

[transcode] V: bits/pixel       | 0.174

[transcode] V: decoding fps,frc | 25.000,3

[transcode] V: video format     | YUV420 (4:2:0) aka I420

[transcode] A: import format    | 0x1     PCM          [48000,16,2]

[transcode] A: export format    | 0x2000  AC3          [48000,16,2]  128
kbps
[transcode] V: export format    | unknown (module dependant)

[transcode] V: encoding fps,frc | 25.000,3

[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 @ 720x576 [0x2]

[transcode] A: audio buffer     | 10 @ 48000x2x16

[import_oss.so] v0.0.3 (2007-11-18) (audio) pcm

[import_v4l2.so] v1.6.2 (2008-10-25) (video) v4l2 | (audio) pcm

[filter_smartyuv.so] (MMX) 0.1.6 (2007-05-31) Motion-adaptive
deinterlacing
[filter_pv.so] v0.2.3 (2004-06-01) xv only preview plugin

[filter_pv.so] preview window 720x576

[pv.c] Xv: Intel(R) Textured Video: ports 86 - 101

[pv.c] Xv: grabbed port 86

[pv.c] Using Xv for display

[export_tcaud.so] v0.9.0 (2007-07-03) (audio) MPEG/AC3/PCM

[export_ffmpeg.so] v0.3.18 (2008-11-29) (video) Lavc52.58.0 | (audio)
MPEG/AC3/PCM
[import_v4l2.so] warning: driver does not support setting parameters
(ioctl(VIDIOC_S_PARM) returns "Invalid argument")

[export_ffmpeg.so] Using FFMPEG codec 'mpeg2video' (FourCC 'mpg2', MPEG2
compliant video).
[export_ffmpeg.so] Selected dvd profile, pal/secam video type for video

[export_ffmpeg.so] Set interlacing to top-first

[export_ffmpeg.so] Set frame rate to 25

[export_ffmpeg.so] Set video bitrate to 5000

[export_ffmpeg.so] Set GOP size to 15

[export_ffmpeg.so] warning: Error opening configuration file
./ffmpeg.cfg: No such file or directory
[export_ffmpeg.so] Starting 1 thread(s)

[export_ffmpeg.so] Display aspect ratio calculated as 1.333333

[export_ffmpeg.so] Sample aspect ratio calculated as 1.066667

[mpeg2video @ 0x96fc3f0]removing common factors from framerate

[transcode] PCM -> AC3

codec type or id mismatches

[transcode] warning: tc_audio_init_ffmpeg: could not open mpa codec !

[encoder.c] warning: audio export module error: init failed

[transcode] critical: failed to init encoder

Re: [transcode-users] export_tcaud options for AC3 sound?

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