[FFmpeg-user] How to record audio and video from FaceTime HD Camera in OSX

Roger Pack rogerdpack2 at gmail.com
Mon Sep 22 16:30:19 CEST 2014 

Could you try with git master [the patches were applied it seems, this
weekend]?
Also possibly run ffmpeg_g in gdb and see where it is hung?
Cheers!

On Mon, Sep 22, 2014 at 8:20 AM, Jay Muthialu <
jmuthialu-at-yahoo.com at ffmpeg.org> wrote:

> Hi Roger,
>
> Thanks for your response. I tried to use it as input but still I could not
> get it to work. Please see below:
>
> Test#1- In this I used -i "0" and the terminal got frozen after I ran the
> command. I had to force quit the terminal. However the FaceTime camera
> light was on when I ran the command but  nothing was captured. Command and
> the output is given below.
>
> $ ffmpeg -f avfoundation -i "0" -r 29.97 -y out.mov
>
> ffmpeg version 2.4.git Copyright (c) 2000-2014 the FFmpeg developers
>   built on Sep 17 2014 18:11:13 with Apple LLVM version 5.1
> (clang-503.0.40) (based on LLVM 3.4svn)
>   configuration: --prefix=/usr/local/ffmpegavpatch
> --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/lib
> --enable-shared --enable-pthreads --enable-gpl --enable-version3
> --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda
> --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac
> --enable-libmp3lame --enable-libxvid --enable-libfreetype
> --enable-libtheora --enable-libvorbis --enable-libvpx --enable-librtmp
> --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-aacenc
> --enable-libass --enable-ffplay --enable-libspeex --enable-libschroedinger
> --enable-libfdk-aac --enable-libopus --enable-frei0r --enable-libopenjpeg
> --disable-decoder=jpeg2000
> --extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.1_1/include/openjpeg-1.5 '
>   libavutil      54.  7.100 / 54.  7.100
>   libavcodec     56.  1.100 / 56.  1.100
>   libavformat    56.  4.102 / 56.  4.102
>   libavdevice    56.  0.100 / 56.  0.100
>   libavfilter     5.  1.101 /  5.  1.101
>   libavresample   2.  1.  0 /  2.  1.  0
>   libswscale      3.  0.100 /  3.  0.100
>   libswresample   1.  1.100 /  1.  1.100
>   libpostproc    53.  0.100 / 53.  0.100
>
> (Terminal was frozen and no output messages seen in the terminal)
>
>
> Test#2 In this I tried to specify audio and video inputs separately as I
> do in Windows but I got the error message below.
>
> $ ffmpeg -f avfoundation -i video="FaceTime HD Camera":audio="Built-in
> Microphone" -r 29.97 -y out.mov
>
>   configuration: --prefix=/usr/local/ffmpegavpatch
> --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/lib
> --enable-shared --enable-pthreads --enable-gpl --enable-version3
> --enable-nonfree --enable-hardcoded-tables --enable-avresample --enable-vda
> --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac
> --enable-libmp3lame --enable-libxvid --enable-libfreetype
> --enable-libtheora --enable-libvorbis --enable-libvpx --enable-librtmp
> --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-aacenc
> --enable-libass --enable-ffplay --enable-libspeex --enable-libschroedinger
> --enable-libfdk-aac --enable-libopus --enable-frei0r --enable-libopenjpeg
> --disable-decoder=jpeg2000
> --extra-cflags='-I/usr/local/Cellar/openjpeg/1.5.1_1/include/openjpeg-1.5 '
>   libavutil      54.  7.100 / 54.  7.100
>   libavcodec     56.  1.100 / 56.  1.100
>   libavformat    56.  4.102 / 56.  4.102
>   libavdevice    56.  0.100 / 56.  0.100
>   libavfilter     5.  1.101 /  5.  1.101
>   libavresample   2.  1.  0 /  2.  1.  0
>   libswscale      3.  0.100 /  3.  0.100
>   libswresample   1.  1.100 /  1.  1.100
>   libpostproc    53.  0.100 / 53.  0.100
> [AVFoundation input device @ 0x7fc133c15700] Video device not found
> video=FaceTime HD Camera:audio=Built-in Microphone: Input/output error
>
> I also tried $ffmpeg -f avfoundation -i video="FaceTime HD Camera" -i
> audio="Built-in Microphone" -r 29.97 -y out.mov and I got the same error
> message as above.
>
>
>
> Warm Regards
> Jay
>
>
> On Sep 19, 2014, at 9:11 AM, Roger Pack <rogerdpack2 at gmail.com> wrote:
>
> > On Wed, Sep 17, 2014 at 4:43 PM, Jay Muthialu <
> > jmuthialu-at-yahoo.com at ffmpeg.org> wrote:
> >
> >> Hi Moritz,
> >>
> >> Thanks for the information. I finally applied the patches. Although I
> >> could not apply through git because the latest ffmpeg version I
> downloaded
> >> did not seem to match with the patches in the email and it failed. So I
> had
> >> to manually sync the patch file to the source file and I complied
> >> sucessfully. The patched version works for all basics scenarios  but did
> >> not fix the underlying issue. It now shows the inbuilt microphone which
> is
> >> an improvement, but the microphone is showing as error.
> >>
> >> $ ffmpeg -f avfoundation -list_devices true -i ""
> >>
> >> Output:
> >> libavutil      54.  7.100 / 54.  7.100
> >>  libavcodec     56.  1.100 / 56.  1.100
> >>  libavformat    56.  4.102 / 56.  4.102
> >>  libavdevice    56.  0.100 / 56.  0.100
> >>  libavfilter     5.  1.101 /  5.  1.101
> >>  libavresample   2.  1.  0 /  2.  1.  0
> >>  libswscale      3.  0.100 /  3.  0.100
> >>  libswresample   1.  1.100 /  1.  1.100
> >>  libpostproc    53.  0.100 / 53.  0.100
> >> [AVFoundation input device @ 0x7ff6c0c14de0] AVFoundation video devices:
> >> [AVFoundation input device @ 0x7ff6c0c14de0] [0] FaceTime HD Camera
> >> [AVFoundation input device @ 0x7ff6c0c14de0] AVFoundation audio devices:
> >> [AVFoundation input device @ 0x7ff6c0c14de0] [0] Built-in Microphone
> >> : Input/output error
> >>
> >> Can you or anyone help me on this? Please note that I have applied all
> the
> >> 5 patches in the thread given below.
> >>
> >
> > What if you try and use it as input?
> >
> >
> >>
> >> https://lists.ffmpeg.org/pipermail/ffmpeg-devel/2014-April/156866.html
> >>
> >> These patches only modified one file "avfoundation.m". I have attached
> the
> >> patched avfoundation.m for reference purpose.
> >>
> >>
> >>
> >>
> >> Warm Regards
> >> Jay
> >>
> >> On Sep 8, 2014, at 3:52 AM, Moritz Barsnick <barsnick at gmx.net> wrote:
> >>
> >>> Hi Jay,
> >>> [oops, sent too early]
> >>>
> >>> On Sun, Sep 07, 2014 at 12:01:25 -0400, Jay Muthialu wrote:
> >>>
> >>>> I went through all the patches specified in the link but I am not
> >>>> sure how to apply the patches. Could you please guide me on how to
> >>>> apply the patches and also what would be command I would have to use
> >>>> to take audio input ? Please note that I originally installed ffmpeg
> >>>> using Homebrew.
> >>>
> >>> You would need to compile yourself. Instructions are here:
> >>>
> >>> https://trac.ffmpeg.org/wiki/CompilationGuide/MacOSX
> >>>
> >>> I don't know how Homebrew works. To apply the patches, you would need
> >>> to grab the patch files from the emails, i.e. sections like this:
> >>>
> >>> diff --git a/libavdevice/avfoundation.m b/libavdevice/avfoundation.m
> >>> index 3622be0..2ac1b3c 100644
> >>> --- a/libavdevice/avfoundation.m
> >>> +++ b/libavdevice/avfoundation.m
> >>> <at>  <at>  -191,7 +191,7  <at>  <at>  static int
> >>> avf_read_header(AVFormatContext *s)
> >>>            goto fail;
> >>>        }
> >>>    } else {
> >>> -        video_device = [AVCaptureDevice
> >>> - defaultDeviceWithMediaType:AVMediaTypeMuxed];
> >>> +        video_device = [AVCaptureDevice
> >>> - defaultDeviceWithMediaType:AVMediaTypeVideo];
> >>>    }
> >>>
> >>>    // Video capture device not found, looking for AVMediaTypeVideo
> >>> --
> >>> 1.8.3.2
> >>>
> >>> (I don't know where to get the proper ASCII versions of these patches)
> >>> and apply each of them with
> >>> patch -p1 -i <patchfilename>
> >>>
> >>> before the configure of make stage. As said, I have no idea how to
> >>> interrupt homebrew stages.
> >>>
> >>> Moritz
> >>> _______________________________________________
> >>> ffmpeg-user mailing list
> >>> ffmpeg-user at ffmpeg.org
> >>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
> >>
> >>
> >> _______________________________________________
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> >>
> >>
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