Tox.chat has no video

English Multimedia
1

Hi,

I try to use Tox.chat https://tox.chat/ but I can’t set video from a USB webcam.
I use Mate desktop.
toxcore version: 0.2.2
Qt version: 5.9.4
My webcam is Philips PCVC730K

VLC can display the cam video and says about codec

Codec: Planar 4.2.0 YUV (I421)
Video resolution: 640x480
Frame rate : 15
Color primaries: ITU-R BT.709
Color transferfunction: sRGB

When I accept a call the webcam button is grey out.
When I call from the webcam button, I get a small coloured square without video inside and the following error in the CLI.

[17:36:51.890 UTC] core/coreav.cpp:275 : Debug: "Starting call with 0"
[17:36:51.890 UTC] audio/backend/openal.cpp:300 : Debug: Opening audio input "Jabra UC VOICE 550a MS Analog Mono"
[17:36:51.899 UTC] audio/backend/openal.cpp:324 : Debug: Opened audio input "Jabra UC VOICE 550a MS Analog Mono"
[17:36:51.900 UTC] audio/backend/openal.cpp:246 : Debug: Subscribed to audio input device  1 subscriptions ]
[17:36:51.900 UTC] audio/backend/openal.cpp:341 : Debug: Opening audio output "Jabra UC VOICE 550a MS Digital Stereo (IEC958)"
[17:36:51.910 UTC] audio/backend/openal.cpp:353 : Debug: Opened audio output "Jabra UC VOICE 550a MS Digital Stereo (IEC958)"
[17:36:51.916 UTC] audio/backend/openal.cpp:676 : Debug: Audio source 2 created. Sources active: 1
[17:36:51.916 UTC] video/camerasource.cpp:384 : Debug: Closing device  "none"
[17:36:51.916 UTC] video/camerasource.cpp:267 : Debug: Opening device  "/dev/video0"
[17:36:51.916 UTC] platform/camera/v4l2.cpp:205 : Warning: Pixel format not found
[video4linux2,v4l2 @ 0x7f2300005c20] No such input format: invalid.
[17:36:51.917 UTC] video/camerasource.cpp:280 : Warning: Failed to open device!
[17:36:51.917 UTC] video/camerasource.cpp:267 : Debug: Opening device  "/dev/video0"
[17:36:51.917 UTC] platform/camera/v4l2.cpp:205 : Warning: Pixel format not found
[video4linux2,v4l2 @ 0x7f2300005d00] No such input format: invalid.
[17:36:51.917 UTC] video/camerasource.cpp:280 : Warning: Failed to open device!
[17:36:56.022 UTC] :0 : Warning: QObject::startTimer: Timers cannot be started from another thread
[17:36:56.184 UTC] widget/form/chatform.cpp:625 : Debug: creating netcam
[17:36:56.186 UTC] video/netcamview.cpp:86 : Debug: SIZER QRect(0,0 320x240)
[17:36:56.186 UTC] video/camerasource.cpp:267 : Debug: Opening device  "/dev/video0"
[17:36:56.186 UTC] platform/camera/v4l2.cpp:205 : Warning: Pixel format not found
[video4linux2,v4l2 @ 0x7f2300005d00] No such input format: invalid.
[17:36:56.187 UTC] video/camerasource.cpp:280 : Warning: Failed to open device!
[17:39:09.874 UTC] core/coreav.cpp:306 : Debug: "Cancelling call with 0"
[17:39:09.875 UTC] audio/backend/openal.cpp:698 : Debug: Audio source 2 deleted. Sources active: 0
[17:39:09.876 UTC] audio/backend/openal.cpp:502 : Debug: Closing audio output

I can’t find any setting regarding Pixel format nether in Mate nor in Tox.chat.
I tried the following

ffmpeg -f avfoundation -list_devices true -i ""
ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 7 (SUSE Linux)
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64  --incdir=/usr/include/ffmpeg --extra-cflags='-fmessage-length=0  -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2  -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables  -fstack-clash-protection -g' --optflags='-fmessage-length=0  -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2  -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables  -fstack-clash-protection -g' --disable-htmlpages --enable-pic  --disable-stripping --enable-shared --disable-static --enable-gpl  --disable-openssl --enable-avresample --enable-libcdio --enable-gnutls  --enable-ladspa --enable-libass --enable-libbluray --enable-libcelt  --enable-libcdio --enable-libdc1394 --enable-libfreetype --enable-libgsm  --enable-libmp3lame --enable-libopenjpeg --enable-libopus  --enable-libpulse --enable-libspeex --enable-libtheora  --enable-libtwolame --enable-libvidstab --enable-libvorbis  --enable-libvpx --enable-libwebp --enable-libzvbi --enable-vaapi  --enable-vdpau --enable-libfdk_aac --enable-nonfree --enable-libx264  --enable-libx265 --enable-libxvid
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Unrecognized option 'list_devices'.
Error splitting the argument list: Option not found
jp@loja:~> ffmpeg -list_devices true -f dshow -i dummy
ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 7 (SUSE Linux)
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64  --incdir=/usr/include/ffmpeg --extra-cflags='-fmessage-length=0  -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2  -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables  -fstack-clash-protection -g' --optflags='-fmessage-length=0  -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2  -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables  -fstack-clash-protection -g' --disable-htmlpages --enable-pic  --disable-stripping --enable-shared --disable-static --enable-gpl  --disable-openssl --enable-avresample --enable-libcdio --enable-gnutls  --enable-ladspa --enable-libass --enable-libbluray --enable-libcelt  --enable-libcdio --enable-libdc1394 --enable-libfreetype --enable-libgsm  --enable-libmp3lame --enable-libopenjpeg --enable-libopus  --enable-libpulse --enable-libspeex --enable-libtheora  --enable-libtwolame --enable-libvidstab --enable-libvorbis  --enable-libvpx --enable-libwebp --enable-libzvbi --enable-vaapi  --enable-vdpau --enable-libfdk_aac --enable-nonfree --enable-libx264  --enable-libx265 --enable-libxvid
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Unrecognized option 'list_devices'.
Error splitting the argument list: Option not found

ffmpeg can’t find option list_devices, should work ffmpeg Documentation
Is it a ffmpeg issue or a tox issue?

I don’t know what to do now.
Any idea how to fix that ?
Thanks

2

Where did you get ffmpeg?? probably should be from packman.

3

I did the upgrade from 42.3 with bootable USB stick offline, then added Packman, added priority and checked for update.
It should be from Packman… I checked, it is from Packman

4

I am afraid that it is then still possible you have packages from OSS that should be from Packman. Changing repo priority does not change vendor of already installed packages.

Thus, please do the Vendor switch to Packman.

5

How did you install the tox client? I get it that you downloaded it from the site? If so, why not use the qtox package from the distro?

6

Sorry for my misunderstanding between repo priority and vendor switch.
In fact I did just after install vendor switch with Yast and with CLI “zypper dup --from…”. So, packages should be from Packman.

I didn’t install from the site (this was before upgrade to 15.0), I installed qtox from Main.

zypper info qtox
Loading repository data...
Reading installed packages...


Information for package qtox:
-----------------------------
Repository     : Main Repository (OSS)                            
Name           : qtox                                             
Version        : 1.14.0-lp150.1.11                                
Arch           : x86_64                                           
Vendor         : openSUSE                                         
Installed Size : 7.2 MiB                                          
Installed      : Yes                                              
Status         : up-to-date                                       
Source package : qtox-1.14.0-lp150.1.11.src                       
Summary        : Tox client that follows the Tox design guidelines
Description    :                                                  
    qTox is a Tox client that follows the Tox design
    guidelines.

Maybe I could look from where all the dependencies are? Do you know the command?

Edit:
I open another thread for an issue that could be linked.
https://forums.opensuse.org/showthread.php/531467-Sutitleeditor-and-video-files

7

New test with a Toshiba laptop, new install 15.0 on clean HDD. Webcam on USB

Lean 15.0 qTox can receive video from an Android tablet but can’t get the video on his own window and off course can’t sent it.

Started qTox in CLI to show the errors messages when I call.

platform/camera/v4l2.cpp:205 : Warning: Pixel format not found
No such input format: invalid.
Warning: Failed to open device!

See first post for more details