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LiLoRoX
n00b
Joined: 20 Jan 2007
Posts: 39
Location: Roanne (FR)
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 Posted: Mon Aug 20, 2007 1:19 pm Post subject: Flac support? |
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Hi,
I seem to have some troubles with flac and ffmpeg.
I have extracted some flac sounds from hydrogen drumkits.
Hydrogen plays them well (eventhough the sound is crapy but that's a problem with hydrogen), as well as flac123.
Xine also reads them without gstreamer support.
The problem is, I can't read them with ffplay or mplayer.
I have tried jack earlier this day and it worked with mplayer -ao jack foo.flac but the sound was worse than hydrogen.
file reports me that this files are:
| Code: | | test.flac: FLAC audio bitstream data, 16 bit, mono, 44.1 kHz, 17361 samples |
ffplay:
| Code: | » ffplay test.flac
[flac @ 0xb7f24670]Could not find codec parameters (Audio: flac)
test.flac: could not find codec parameters |
mplayer:
| Code: | » mplayer test.flac
MPlayer dev-SVN-rUNKNOWN-4.1.2 (C) 2000-2007 MPlayer Team
CPU: Intel(R) Pentium(R) M processor 1.86GHz (Family: 6, Model: 13, 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
Playing test.flac.
Audio file file format detected.
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
Unknown/missing audio format -> no sound
ADecoder init failed :(
Cannot find codec for audio format 0x43614C66.
Read DOCS/HTML/en/codecs.html!
Audio: no sound
Video: no video
Exiting... (End of file) |
Is it normal to see that: [flac @ 0xb7f24670] and Cannot find codec for audio format 0x43614C66?
And finally, there is no 'flac' use flag for mplayer and ffmpeg, so is it unsupported? |
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mattsteven
Apprentice
Joined: 27 Oct 2003
Posts: 240
Location: Your Planet
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| Posted: Mon Aug 20, 2007 1:24 pm Post subject: |
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There are a few ebuilds out there that will use something if it's on the system even if there's no USE flag for it.
Try merging flac and then re-merge those programs. Also ensure ogg is in your use flags.
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Matthew Steven
Linux-only desktop since 1998
Graying hair since 2006 |
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LiLoRoX
n00b
Joined: 20 Jan 2007
Posts: 39
Location: Roanne (FR)
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| Posted: Mon Aug 20, 2007 1:45 pm Post subject: |
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OK, so while I was compiling mplayer, I have checked the configure.log.
There is no 'flac' anywhere, which means that it is not even tested. If at least it was tested and not found, I could understand but that is weird.
The version I am using is media-video/mplayer-1.0.20070622-r1.
Plus, if you set the verbose level high, mplayer gives you the configure flags used for compilation:
| Code: | » mplayer -v test.flac 2>/dev/null | grep Configuration:
Configuration: --cc=i686-pc-linux-gnu-gcc --host-cc=i686-pc-linux-gnu-gcc --prefix=/usr --confdir=/etc/mplayer --datadir=/usr/share/mplayer --libdir=/usr/lib --enable-largefiles --enable-menu --enable-network --disable-tv-bsdbt848 --disable-faad-external --disable-libcdio --enable-bl --disable-enca --disable-ftp --disable-vstream --disable-libdv --charset=UTF-8 --disable-lirc --disable-lircc --enable-joystick --disable-rtc --disable-dvb --disable-dvbhead --disable-radio-v4l2 --disable-radio-bsdbt848 --disable-pvr --disable-pnm --disable-speex --disable-xanim --disable-twolame --disable-toolame --realcodecsdir=/opt/RealPlayer/codecs --disable-directfb --disable-ivtv --disable-ggi --disable-md5sum --disable-fbdev --disable-mga --disable-xmga --disable-vesa --disable-vidix-internal --disable-vidix-external --disable-zr --enable-gui --enable-xvmc --with-xvmclib=XvMCW --disable-3dfx --disable-tdfxvid --disable-tdfxfb --disable-arts --disable-nas --disable-ossaudio --enable-runtime-cpudetection --disable-3dnow --disable-3dnowext --disable-ssse3 --disable-altivec |
As you can see, where is no flac here either  |
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mattsteven
Apprentice
Joined: 27 Oct 2003
Posts: 240
Location: Your Planet
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| Posted: Mon Aug 20, 2007 2:34 pm Post subject: |
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My mplayer at least uses ffmpeg to decode flac.
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Matthew Steven
Linux-only desktop since 1998
Graying hair since 2006 |
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LiLoRoX
n00b
Joined: 20 Jan 2007
Posts: 39
Location: Roanne (FR)
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| Posted: Mon Aug 20, 2007 6:21 pm Post subject: |
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| Yes, it tries, but even ffplay ffmpeg'splayer, doesn't play anything :s |
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Rob1n
l33t
Joined: 29 Nov 2003
Posts: 714
Location: Cambridge, UK
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| Posted: Mon Aug 20, 2007 6:43 pm Post subject: |
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| That's odd - FLAC should be built into ffmpeg. What's the result of "nm -D /usr/lib/libavcodec.so | grep -i flac"? And what version of ffmpeg do you have installed? |
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LiLoRoX
n00b
Joined: 20 Jan 2007
Posts: 39
Location: Roanne (FR)
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| Posted: Mon Aug 20, 2007 7:03 pm Post subject: |
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I got something if you check the symbols:
| Code: | » nm -D /usr/lib/libavcodec.so | grep -i flac
0037c340 D flac_decoder
0037c380 D flac_encoder |
And for my ffmpeg version:
| Code: | | media-video/ffmpeg-0.4.9_p20070325 |
By the way:
| Code: | FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2007 Fabrice Bellard, et al.
configuration: --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib --mandir=/usr/share/man --enable-static --enable-shared --cc=i686-pc-linux-gnu-gcc --disable-altivec --disable-debug --disable-audio-oss --disable-dv1394 --disable-opts --enable-libmp3lame --enable-libvorbis --enable-libogg --enable-libtheora --enable-libogg --enable-liba52 --enable-pthreads --enable-xvid --enable-x11grab --enable-libogg --enable-libdts --enable-x264 --enable-libfaad --enable-libfaac --enable-amr-nb --enable-amr-wb --enable-amr-if2 --enable-gpl --enable-pp --disable-strip --enable-swscaler |
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Rob1n
l33t
Joined: 29 Nov 2003
Posts: 714
Location: Cambridge, UK
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| Posted: Mon Aug 20, 2007 7:47 pm Post subject: |
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| You could try upgrading - I've got 20070330 installed (which is flagged stable, unlike 20070325). |
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mattsteven
Apprentice
Joined: 27 Oct 2003
Posts: 240
Location: Your Planet
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| Posted: Mon Aug 20, 2007 7:49 pm Post subject: |
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What happens when you try this?
| Code: | | flac -c -d /path/to.flac | aplay |
If you don't get good playback there your problem may be outside of flac and with your sound system.
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Matthew Steven
Linux-only desktop since 1998
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LiLoRoX
n00b
Joined: 20 Jan 2007
Posts: 39
Location: Roanne (FR)
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| Posted: Mon Aug 20, 2007 10:02 pm Post subject: |
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Ahhh and unfortunately, it works 
But the flac support is somewhere, hydrogen is using it, Wine as well.
mplayer and ffmpeg, or just ffmpeg seems to be the problem :s
So I suppose the problem doesn't come not from alsa (hydrogen is using alsa).
Maybe I should try another version ffmpeg... |
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LiLoRoX
n00b
Joined: 20 Jan 2007
Posts: 39
Location: Roanne (FR)
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| Posted: Mon Aug 20, 2007 10:19 pm Post subject: |
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Updated to the most recent version in portage: "ffmpeg-0.4.9_p20070325"
Still no progress.
I stopped the compilation at some points to see some big multiple-lines compilation.
I saw some flac.c and flacenc.c so it's not hopeless |
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Rob1n
l33t
Joined: 29 Nov 2003
Posts: 714
Location: Cambridge, UK
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| Posted: Mon Aug 20, 2007 10:53 pm Post subject: |
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| If "ffmpeg-0.4.9_p20070325" is the most recent version you have in portage then you need to update your tree - "0.4.9_p20070616-r1" is the most recent (with 0.4.9_p20070330 being the latest stable). |
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LiLoRoX
n00b
Joined: 20 Jan 2007
Posts: 39
Location: Roanne (FR)
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| Posted: Tue Aug 21, 2007 8:08 am Post subject: |
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Yes you're right. Actually, it isn't my most recent, I just didn't pay enough attention
And I don't remember why, but I blocked the 20070330 but now it is the version I have.
Anyway, I have discovered something.
I was always trying with the same flacs, so I decided to take a longer sound (the flac sounds I am using are1 or 2 seconds long).
I converted a wav to flac and it works.... (yeah sorry I suck )
But not with all of them.
The short ones don't work with ffmpeg, only the ones longer than a few seconds apparently.... (less than 70 KB)
So finally, I can say it
It seems to be a bug from ffmpeg.
If you want to try the same sounds as I did, try to find some very short flac sounds or go there and try with any drumkit.
You can extract the flac from the h2drumkit files by simply renaming them to .tar.gz, the flacs are in a sub directory.
EDIT: submitted bug #189697 |
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