Hi, I need your help to configure ffmpeg so as to use alsa. I have downloaded version 0.5 of ffmpeg. But I can't find how to enable alsa. I have tried "configure --enable-muxer=alsa --enable-demuxer=alsa". Then I looked at config.h and I can see "#define ENABLE_ALSA_MUXER 0", "#define ENABLE_ALSA_MUXER 0". Is there something I have missed ? Nicolas Krieger
I have the svn source of about 5 days ago, and I ran ./configure --help and it spits out all the configurable options. None of them contains the word alsa or ALSA or Alsa. Cheers, JD Nicolas Krieger wrote:
Hi,
I need your help to configure ffmpeg so as to use alsa. I have downloaded version 0.5 of ffmpeg. But I can't find how to enable alsa. I have tried "configure --enable-muxer=alsa --enable-demuxer=alsa". Then I looked at config.h and I can see "#define ENABLE_ALSA_MUXER 0", "#define ENABLE_ALSA_MUXER 0".
Is there something I have missed ?
Nicolas Krieger _______________________________________________ ffmpeg-user mailing list ffmpeg-user at mplayerhq.hu https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-user
2009/6/23 JD <jd1008 at gmail.com>
I have the svn source of about 5 days ago, and I ran ./configure --help and it spits out all the configurable options. None of them contains the word alsa or ALSA or Alsa.
Yes, I know. In the source code, I have seen files for the use of alsa (libavdecide/alsa-audio-dec.c for example). But these files (for alsa support) are not compiled. What a do is a little crappy, but I can then compile these files : I run configure --extra-libs=-lasound, then I modify config.h and config.mak and then run make. And the alsa files are compiled. There is certainly another way to do. I am using ffmpeg library and I need alsa files. I manage to do what I want, but it is not clean.
Clean or not, you can't argue with 'it works'! :) :) Cheers, JD Nicolas Krieger wrote:
2009/6/23 JD <jd1008 at gmail.com>
I have the svn source of about 5 days ago, and I ran ./configure --help and it spits out all the configurable options. None of them contains the word alsa or ALSA or Alsa.
Yes, I know. In the source code, I have seen files for the use of alsa (libavdecide/alsa-audio-dec.c for example).
But these files (for alsa support) are not compiled. What a do is a little crappy, but I can then compile these files :
I run configure --extra-libs=-lasound, then I modify config.h and config.mak and then run make.
And the alsa files are compiled.
There is certainly another way to do.
I am using ffmpeg library and I need alsa files. I manage to do what I want, but it is not clean. _______________________________________________ ffmpeg-user mailing list ffmpeg-user at mplayerhq.hu https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-user
2009/6/24 JD <jd1008 at gmail.com>
Clean or not, you can't argue with 'it works'! :) :)
Cheers,
JD
That's why I'm looking for a better solution. In the changelog version 0.5: - ALSA support for playback and record There is code for alsa support in libavdevice, how must I run configure so as I can use alsa ?
On date Wednesday 2009-06-24 17:37:36 +0200, Nicolas Krieger encoded:
2009/6/24 JD <jd1008 at gmail.com>
Clean or not, you can't argue with 'it works'! :) :)
Cheers,
JD
That's why I'm looking for a better solution.
In the changelog version 0.5:
- ALSA support for playback and record
There is code for alsa support in libavdevice, how must I run configure so as I can use alsa ?
Grepping the configure you can find these lines: alsa_demuxer_deps="alsa_asoundlib_h snd_pcm_htimestamp" alsa_demuxer_extralibs="-lasound" alsa_muxer_deps="alsa_asoundlib_h" alsa_muxer_extralibs="-lasound" which establish the dependencies which enable the alsa demuxer/muxer (yes that should be indev/outdev, patch for that pending). Grepping again configure you can find: check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound This line checks for some headers and functions of alsa to see if it is present in the system, and enables the dependencies symbol (alsa/asoundlib.h -> alsa_asoundlib_h) which will be used to enable/disable the alsa devices. So at the end you have to verify that your system has the alsa/asoundlib.h header and the snd_pcm_htimestamp function, you can look at the actual log of the check executed by configure grepping your config.err file, my bet is that your system/environment is somehow misconfigured so configure can't find hte asoundlib.h header. The FFmpeg configure script is a rare beast of beauty, so I hope you'll enjoy reading it ;-). Regards. -- ffmpeg-user random tip #19 X11 session recording with ffmpeg: ffmpeg -f oss -i /dev/audio -f x11grab -s $WIDTHx$HEIGHT -r 5 -i :0.0 \ x11-session.avi Use xdpyinfo to get WIDTH and HEIGHT values.
2009/6/24 Stefano Sabatini <stefano.sabatini-lala at poste.it>
Grepping the configure you can find these lines: alsa_demuxer_deps="alsa_asoundlib_h snd_pcm_htimestamp" alsa_demuxer_extralibs="-lasound" alsa_muxer_deps="alsa_asoundlib_h" alsa_muxer_extralibs="-lasound"
which establish the dependencies which enable the alsa demuxer/muxer (yes that should be indev/outdev, patch for that pending).
Grepping again configure you can find: check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
This line checks for some headers and functions of alsa to see if it is present in the system, and enables the dependencies symbol (alsa/asoundlib.h -> alsa_asoundlib_h) which will be used to enable/disable the alsa devices.
So at the end you have to verify that your system has the alsa/asoundlib.h header and the snd_pcm_htimestamp function, you can look at the actual log of the check executed by configure grepping your config.err file, my bet is that your system/environment is somehow misconfigured so configure can't find hte asoundlib.h header.
The FFmpeg configure script is a rare beast of beauty, so I hope you'll enjoy reading it ;-).
Ok. As I can not update my version of ffmpeg, I took all the informations I could find in version 0.5 and made a copy (without any modification when I copied the informations for configure file). And as my system doesn't have the snd_pcm_htimestamp function, I made modifications in the code to use another function. So I think I can/must remove all the reference to snd_pcm_htimestam. Thank you all. Nicolas Krieger
@khenyh said: *I run configure --extra-libs=-lasound, then I modify config.h and config.mak and then run make. And the alsa files are compiled. * I have successfully built ffmpeg with alsa support on a PC running Ubuntu 10.10. I do have libasound installed on this computer . I tried to build another version of ffmpeg, this time for android - please note that both versions have IDENTICAL libavdevice files. However in this case I am missing alsa support. The alsa files in libavdevice do not compile at all. This is what I can glean from the comfig.log file. jasongipsyblues@android-master:~/android-ffmpeg/Project/jni/ffmpeg$ cat config.log|grep alsa alsa_indev alsa_outdev alsa_asoundlib_h INDEV_LIST='alsa_indev OUTDEV_LIST='alsa_outdev alsa_indev='yes' *alsa_indev_deps='alsa_asoundlib_h snd_pcm_htimestamp'* alsa_outdev='yes'I run configure --extra-libs=-lasound, then I modify config.h and config.mak and then run make. And the alsa files are compiled. *alsa_outdev_deps='alsa_asoundlib_h'* indevs_if_any='alsa_indev outdevs_if_any='alsa_outdevI run configure --extra-libs=-lasound, then I modify config.h and config.mak and then run make. And the alsa files are compiled. *check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound* check_func_headers alsa/asoundlib.h snd_pcm_htimestamp -lasound 1 #include <alsa/asoundlib.h> /tmp/ffconf.VCjQQAHQ.c:1:28: error: alsa/asoundlib.h: No such file or directory* It appears alsa/asoundlib.h and snd_pcm_htimestamp.c is needed for a successful build. In the case of the android version these files are not found Comparing this build to that of the Ubuntu build, this is what I get when I grep for alsa *jasongipsyblues@android-master:~/ffmpeg$ cat config.log|grep alsa* alsa_indev alsa_outdev alsa_asoundlib_h INDEV_LIST='alsa_indev OUTDEV_LIST='alsa_outdev alsa_indev='yes' *alsa_indev_deps='alsa_asoundlib_h snd_pcm_htimestamp'* alsa_outdev='yes' *alsa_outdev_deps='alsa_asoundlib_h'* indevs_if_any='alsa_indev outdevs_if_any='alsa_outdev *check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound* *check_func_headers alsa/asoundlib.h snd_pcm_htimestamp -lasound* * 1 #include <alsa/asoundlib.h>* In both cases the dependencies are check and both versions show identical dependencies. However in the case of the android version, the check for the dependencies fail. I have checked the compilers and the Ubuntu compiler does not have any reference to where libasound is located, yet it is able to find it. How does one add the ability to find the dependencies to the build for android. @khenyh appears to have solved it however his write up is not helpful Any suggestions in this direction will be appreciated khenyh wrote
2009/6/23 JD <jd1008@>
I have the svn source of about 5 days ago, and I ran ./configure --help and it spits out all the configurable options. None of them contains the word alsa or ALSA or Alsa.
Yes, I know. In the source code, I have seen files for the use of alsa (libavdecide/alsa-audio-dec.c for example).
But these files (for alsa support) are not compiled. What a do is a little crappy, but I can then compile these files :
I run configure --extra-libs=-lasound, then I modify config.h and config.mak and then run make.
And the alsa files are compiled.
There is certainly another way to do.
I am using ffmpeg library and I need alsa files. I manage to do what I want, but it is not clean. _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-user
-- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/compil-ffmpeg-with-alsa-support-tp9... Sent from the FFmpeg-users mailing list archive at Nabble.com.
@khenyh said: *I run configure --extra-libs=-lasound, then I modify config.h and config.mak and then run make. And the alsa files are compiled. * *I run configure --extra-libs=-lasound, then I modify config.h and config.mak and then run make. And the alsa files are compiled. * I have successfully built ffmpeg with alsa support on a PC running Ubuntu 10.10. I do have libasound installed on this computer . I tried to build another version of ffmpeg, this time for android - please note that both versions have IDENTICAL libavdevice files. However in the android targeted case I am missing alsa support. The alsa files in libavdevice do not compile at all. This is what I can glean from the config.log file. jasongipsyblues@android-master:~/android-ffmpeg/Project/jni/ffmpeg$ cat config.log|grep alsa alsa_indev alsa_outdev alsa_asoundlib_h INDEV_LIST='alsa_indev OUTDEV_LIST='alsa_outdev alsa_indev='yes' *alsa_indev_deps='alsa_asoundlib_h snd_pcm_htimestamp'* alsa_outdev='yes *alsa_outdev_deps='alsa_asoundlib_h'* indevs_if_any='alsa_indev outdevs_if_any='alsa_outdevI run configure --extra-libs=-lasound, *check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound* check_func_headers alsa/asoundlib.h snd_pcm_htimestamp -lasound 1 #include <alsa/asoundlib.h> /tmp/ffconf.VCjQQAHQ.c:1:28: error: alsa/asoundlib.h: No such file or directory* It appears alsa/asoundlib.h and snd_pcm_htimestamp.c are needed for a successful build. In the case of the android version these files are not found Comparing this build to that of the Ubuntu build, this is what I get when I grep for alsa *jasongipsyblues@android-master:~/ffmpeg$ cat config.log|grep alsa* alsa_indev alsa_outdev alsa_asoundlib_h INDEV_LIST='alsa_indev OUTDEV_LIST='alsa_outdev alsa_indev='yes' *alsa_indev_deps='alsa_asoundlib_h snd_pcm_htimestamp'* alsa_outdev='yes' *alsa_outdev_deps='alsa_asoundlib_h'* indevs_if_any='alsa_indev outdevs_if_any='alsa_outdev *check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound* *check_func_headers alsa/asoundlib.h snd_pcm_htimestamp -lasound* * 1 #include <alsa/asoundlib.h>* In both cases the dependencies are checked and both versions show identical dependencies. However in the case of the android version, the check for the dependencies fail. I have checked the compilers and the Ubuntu compiler does not have any reference to where libasound is located, yet it is able to find it for the Ubuntu version How does one add the ability to find the dependencies to the build for android. @khenyh appears to have solved it however his write up is not helpful Any suggestions in this direction will be appreciated khenyh wrote
2009/6/23 JD <jd1008@>
I have the svn source of about 5 days ago, and I ran ./configure --help and it spits out all the configurable options. None of them contains the word alsa or ALSA or Alsa.
Yes, I know. In the source code, I have seen files for the use of alsa (libavdecide/alsa-audio-dec.c for example).
But these files (for alsa support) are not compiled. What a do is a little crappy, but I can then compile these files :
I run configure --extra-libs=-lasound, then I modify config.h and config.mak and then run make.
And the alsa files are compiled.
There is certainly another way to do.
I am using ffmpeg library and I need alsa files. I manage to do what I want, but it is not clean. _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-user
-- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/compil-ffmpeg-with-alsa-support-tp9... Sent from the FFmpeg-users mailing list archive at Nabble.com.
You might want to first install alsa-lib, alsa-lib-devel...etc. then run configure. There are numerous alsa packages, such as alsa-utils alsa-tools alsa-plugins-vdownmix alsa-plugins-usbstream alsa-plugins-upmix alsa-plugins-samplerate alsa-plugins-pulseaudio alsa-plugins-oss alsa-plugins-jack alsa-plugins-pulseaudio alsa-plugins-oss alsa-plugins-jack alsa-plugins alsa-oss-libs alsa-oss-devel alsa-oss alsa-lib-devel alsa-lib alsa-kmdl alsa-firmware alsa-driver-devel alsa-driver JD Nicolas Krieger wrote:
Hi,
I need your help to configure ffmpeg so as to use alsa. I have downloaded version 0.5 of ffmpeg. But I can't find how to enable alsa. I have tried "configure --enable-muxer=alsa --enable-demuxer=alsa". Then I looked at config.h and I can see "#define ENABLE_ALSA_MUXER 0", "#define ENABLE_ALSA_MUXER 0".
Is there something I have missed ?
Nicolas Krieger _______________________________________________ ffmpeg-user mailing list ffmpeg-user at mplayerhq.hu https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-user
participants (4)
-
gipsyblues -
jd1008＠gmail.com -
khenyh＠gmail.com -
stefano.sabatini-lala＠poste.it