qdvdauthor no ac3 support

[Kristian Kißling]

Qdvdauthor doesnt support AC3 sound files.
1) made file with ffmpeg -i original.mp3 -ar 48000 -ab 224k new.ac3
2) play it with mplayer, works fine
3) add it to qdvdauthor, it appears, but seems to be 0 seconds long
4) when you transcode it anyway (at least with transcode), menu stops playing, VLC hangs

[Joshua Goss (jgoss)]

ac3 file does indeed show up as only 0 seconds long and not supported.

[Maia Everett (linneris)]

Forwarding upstream.

[QDVDAuthor (varol)]

Thank you I received the bug report.

I am using the MediaBackend to determine media properties. So if you select MPlayerWidget, QDVDAuthor will use mplayer to determine the length of the ac3 file.

Check the output of
> mplayer -identify new.ac3

Varol :)

[Kristian Kißling (kkissling)]

QDVDAuthor schrieb folgendes am 16.12.2007 18:05:
> Thank you I received the bug report.
>
Hi Varol,

> I am using the MediaBackend to determine media properties. So if you
> select MPlayerWidget, QDVDAuthor will use mplayer to determine the
> length of the ac3 file.

I will try that. Thanks for the hint. But if I use that AC3 with Transcode,
VLC and my DVD-Player seem not to be able to play the resulting Menus.

>
> Check the output of
>> mplayer -identify new.ac3

zap@slurm:~/filme$ mplayer -identify spoon.ac3
MPlayer 2:1.0~rc1-0ubuntu13.1 (C) 2000-2006 MPlayer Team
CPU: Genuine Intel(R) CPU T2400 @ 1.83GHz (Family: 6, Model:
14, Stepping: 8)
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
Can't open joystick device /dev/input/js0: No such file or directory
Can't init input joystick
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote
control.

Playing spoon.ac3.
libavformat file format detected.
ID_AUDIO_ID=0
ID_FILENAME=spoon.ac3
ID_DEMUXER=lavf
ID_AUDIO_FORMAT=8192
ID_AUDIO_BITRATE=224000
ID_AUDIO_RATE=44100
ID_AUDIO_NCH=2
ID_LENGTH=160.81
==========================================================================
Forced audio codec: mad
Opening audio decoder: [liba52] AC3 decoding with liba52
Using SSE optimized IMDCT transform
Using MMX optimized resampler
AUDIO: 44100 Hz, 2 ch, s16le, 224.0 kbit/15.87% (ratio: 28000->176400)
ID_AUDIO_BITRATE=224000
ID_AUDIO_RATE=44100
ID_AUDIO_NCH=2
Selected audio codec: [a52] afm: liba52 (AC3-liba52)
==========================================================================
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
ID_AUDIO_CODEC=a52
Video: no video
Starting playback...
A: 7.7 (07.7) of 160.8 (02:40.8) 1.6%

[Plays song :)]

I write an article on QDVDAuthor for LinuxUser. I recommend MP2 as
Format for songs to work on common DVD-Players. Do you agree?

Nice GUI anyway!
br
Kristian

>
> Varol :)
>

[QDVDAuthor (varol)]

I checked it on my box and the QMPlayerWidget does return the correct values but KXineWidget has issues with the detection of the length.

The workaround would be to switch to QMPlayerWidget while importing the audio files or to manually disable transcoding of the ac3 stream.

Varol

[Alessio Treglia (quadrispro)]

Is this still reproducible on Lucid?