Bug#890918: Re (2): Bug#890918: mpv produces the image with numerous complaints.

[peter]

From:   James Cowgill 
Date:   Wed, 21 Feb 2018 10:28:30 +
> You tagged the bug "upstream". This tag usually means that the bug is
> known to be in upstream mpv. How do you know this?

My intended meaning was that the report probably has relevance 
outside Debian.  So I misunderstood the use of the upstream tag.

> I don't know what "imager" and "dalton" mean. Do they have identical
> versions of mpv and identical kernels (probably the 2 most important
> bits here)?

Dalton has an Asus badge and a Foxcon system board.
Imager is a Dell Dimension 2400. Both have stock debian 9 with package 
installation by routine application of apt-get and aptitude.  Imager has 
some configuration files not in dalton.

> Does ffmpeg's v4l2 support work better?
>  mpv -v av://v4l2:/dev/video0

Much better.  For dalton, the textual output is almost all green with a few 
lines in white.  Red text appears only when the live video window 
is closed to exit.  For imager, a few lines are problematic.
  ...
[vo/opengl] At least OpenGL 2.1 or OpenGL ES 2.0 required.
  ...
[vo/vdpau] Error when calling vdp_device_create_x11: 25
  ...
[vo/xv] Warning: this legacy VO has bad quality and performance, ...
  ...
[cplayer] Invalid video timestamp: 1.221889 -> -4167.930372

Is an opengl dependancy not provided?
VO = Video Output ?  mpv wants a better display?
The system clock is right.  What is the problem in the timestamp?

Actually I tried "mpv -v --display=:0 av://v4l2:/dev/video0", learned 
that "--display=:0" isn't accepted and fell back to invocation from 
an LXTerminal.

> Does your webcam actually play in mpv? Is it just the log messages that
> bother you?

Live video was always produced but the messages raised suspicion that 
output was sub-optimal.  So the messages were the primary concern. 
But really I wasn't using mpv as currently intended.

Transcripts follow.  The questions above are my only immediate concerns.  
If you decide to close the report, I have no objection.  Next will return  
to a Hauppauge frame grabber.

Thanks,... Peter E.

peter@dalton:~$ mpv -v av://v4l2:/dev/video0
[cplayer] Command line options: '-v' 'av://v4l2:/dev/video0'
[cplayer] mpv 0.23.0 (C) 2000-2016 mpv/MPlayer/mplayer2 projects
[cplayer]  built on UNKNOWN
[cplayer] ffmpeg library versions:
[cplayer]libavutil   55.34.101
[cplayer]libavcodec  57.64.101
[cplayer]libavformat 57.56.101
[cplayer]libswscale  4.2.100
[cplayer]libavfilter 6.65.100
[cplayer]libswresample   2.3.100
[cplayer] ffmpeg version: 3.2.10-1~deb9u1
[cplayer] 
[cplayer] Configuration: ./waf configure --prefix=/usr 
--libdir=/usr/lib/i386-linux-gnu --confdir=/etc/mpv 
--zshdir=/usr/share/zsh/vendor-completions --enable-cdda --enable-sdl2 
--enable-sndio --enable-zsh-comp --enable-libmpv-shared --enable-encoding 
--disable-build-date
[cplayer] List of enabled features: alsa any-gl asm atomics audio-input 
avcodec-chroma-pos-api avframe-metadata avframe-skip-samples 
avutil-mastering-metadata c11-tls cdda cplayer debug-build dlopen drm dvbin 
dvdnav dvdread egl-drm egl-helpers egl-x11 encoding fchmod gbm gbm.h gcc-tls gl 
gl-wayland gl-x11 glibc-thread-name glob gnuc iconv jack jpeg lcms2 libass 
libass-osd libav libavdevice libavfilter libbluray libdl libm libmpv-shared 
librt libsmbclient libswresample libv4l2 linux-fstatfs lua nanosleep optimize 
oss-audio oss-audio-native plain-gl posix posix-or-mingw posix-spawn pthreads 
pulse resampler rubberband sdl2 shm sndio sse4-intrinsics standard-gl stdatomic 
subprocess termios tv tv-v4l2 vaapi vaapi-drm vaapi-egl vaapi-glx vaapi-hwaccel 
vaapi-wayland vaapi-x-egl vaapi-x11 vdpau vdpau-gl-x11 vdpau-hwaccel videodev 
vt.h wayland x11 xext xinerama xrandr xss xv zlib zsh-comp
[global] config path: '' -> '/home/peter/.config/mpv'
[global] config path: 'mpv.conf' -/-> '/home/peter/.config/mpv/mpv.conf'
[global] config path: 'config' -/-> '/home/peter/.config/mpv/config'
[global] config path: 'mpv.conf' -/-> '/home/peter/.mpv/mpv.conf'
[global] config path: 'config' -/-> '/home/peter/.mpv/config'
[global] config path: 'mpv.conf' -/-> '/etc/mpv/mpv.conf'
[global] config path: 'config' -/-> '/etc/mpv/config'
[cplayer] Setting option 'v' = '' (flags = 8)
[global] config path: 'input.conf' -/-> '/home/peter/.config/mpv/input.conf'
[global] config path: 'input.conf' -/-> '/home/peter/.mpv/input.conf'
[global] config path: 'input.conf' -/-> '/etc/mpv/input.conf'
[osc] Loading script @osc.lua...
[global] config path: 'scripts' -/-> '/home/peter/.config/mpv/scripts'
[global] config path: 'scripts' -/-> '/home/peter/.mpv/scripts'
[global] config path: 'scripts' -/-> '/etc/mpv/scripts'
[osc] loading mp.defaults
[osc] loading @osc.lua
[global] config path: 'lua-settings/osc.conf' -/-> 
'/home/peter/.config/mpv/lua-settings/osc.conf'
[global] config path: 'lua-settings/osc.conf' -/-> 
'/home/peter/.mpv/lua-settings/osc.conf'
[global] config path: 

Bug#890918: mpv produces the image with numerous complaints.

[James Cowgill]

Control: tags -1 moreinfo

Hi,

On 20/02/18 16:30, pe...@easthope.ca wrote:
> Package: mpv
> Version: 0.23.0-2+deb9u2
> Severity: normal
> Tags: upstream

You tagged the bug "upstream". This tag usually means that the bug is
known to be in upstream mpv. How do you know this?

> Dear Maintainer,
> 
>* What led up to the situation?
>  Display of output from a Logitech camera
>  M/N: V-U0006
>  P/N: 860-000177
>  PID: LZ944BN
>* What exactly did you do (or not do) that was effective (or ineffective)?
>   Connected USB and executed "mpv tv:// --tv-device=/dev/video0"
>   on two similar systems, imager and dalton.  Transcripts appended.

Does ffmpeg's v4l2 support work better?
 mpv -v av://v4l2:/dev/video0

I should point out that all the code for tv:// has been removed in
upstream mpv, so if this is a bug in mpv, it is unlikely to be fixed
(upstream now tells you to use the av:// form above).

I don't know what "imager" and "dalton" mean. Do they have identical
versions of mpv and identical kernels (probably the 2 most important
bits here)?

Please recreate the transcripts with the -v option to get more verbosity.

Testing with newer kernels and mpv versions would be helpful, but this
might be a bit harder.

>   Note the differences from the same procedure on two almost idential 
>   systems.  Eg. 
>   [tv]  Current format: YUYV
>   versus
>   [tv]  Current format: MJPEG
>* What was the outcome of this action?
>The images appeared with numerous complaints. Eg. 
>[tv] ioctl enum norm failed: Inappropriate ioctl for device
>[tv] Error: Cannot set norm!
>* What outcome did you expect instead?
>A concise and tidy report to the terminal with no complaints, errors 
> or warnings.
>In the present state, the software is not good release quality.

Does your webcam actually play in mpv? Is it just the log messages that
bother you?

Thanks,
James



signature.asc
Description: OpenPGP digital signature

Bug#890918: mpv produces the image with numerous complaints.

[peter]

Package: mpv
Version: 0.23.0-2+deb9u2
Severity: normal
Tags: upstream

Dear Maintainer,

   * What led up to the situation?
 Display of output from a Logitech camera
 M/N: V-U0006
 P/N: 860-000177
 PID: LZ944BN
   * What exactly did you do (or not do) that was effective (or ineffective)?
  Connected USB and executed "mpv tv:// --tv-device=/dev/video0"
  on two similar systems, imager and dalton.  Transcripts appended.
  Note the differences from the same procedure on two almost idential 
  systems.  Eg. 
  [tv]  Current format: YUYV
  versus
  [tv]  Current format: MJPEG
   * What was the outcome of this action?
   The images appeared with numerous complaints. Eg. 
   [tv] ioctl enum norm failed: Inappropriate ioctl for device
   [tv] Error: Cannot set norm!
   * What outcome did you expect instead?
   A concise and tidy report to the terminal with no complaints, errors or 
warnings.
   In the present state, the software is not good release quality.
   
-- System Information:
Debian Release: 9.3
  APT prefers stable
  APT policy: (900, 'stable')
Architecture: i386 (i686)

Kernel: Linux 4.9.0-3-686-pae (SMP w/1 CPU core)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_CA:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages mpv depends on:
ii  libasound2  1.1.3-5
ii  libass5 1:0.13.4-2
ii  libavcodec577:3.2.10-1~deb9u1
ii  libavdevice57   7:3.2.10-1~deb9u1
ii  libavfilter67:3.2.10-1~deb9u1
ii  libavformat57   7:3.2.10-1~deb9u1
ii  libavutil55 7:3.2.10-1~deb9u1
ii  libbluray1  1:0.9.3-3
ii  libc6   2.24-11+deb9u1
ii  libcdio-cdda1   0.83-4.3+b1
ii  libcdio-paranoia1   0.83-4.3+b1
ii  libcdio13   0.83-4.3+b1
ii  libdrm2 2.4.74-1
ii  libdvdnav4  5.0.3-3
ii  libdvdread4 5.0.3-2
ii  libegl1-mesa [libegl1-x11]  13.0.6-1+b2
ii  libgbm1 13.0.6-1+b2
ii  libgl1-mesa-glx [libgl1]13.0.6-1+b2
ii  libjack-jackd2-0 [libjack-0.125]1.9.10+20150825git1ed50c92~dfsg-5
ii  libjpeg62-turbo 1:1.5.1-2
ii  liblcms2-2  2.8-4
ii  liblua5.2-0 5.2.4-1.1+b2
ii  libpulse0   10.0-1+deb9u1
ii  librubberband2  1.8.1-7
ii  libsdl2-2.0-0   2.0.5+dfsg1-2
ii  libsmbclient2:4.5.12+dfsg-2+deb9u1
ii  libsndio6.1 1.1.0-3
ii  libswresample2  7:3.2.10-1~deb9u1
ii  libswscale4 7:3.2.10-1~deb9u1
ii  libv4l-01.12.3-1
ii  libva-drm1  1.7.3-2
ii  libva-wayland1  1.7.3-2
ii  libva-x11-1 1.7.3-2
ii  libva1  1.7.3-2
ii  libvdpau1   1.1.1-6
ii  libwayland-client0  1.12.0-1
ii  libwayland-cursor0  1.12.0-1
ii  libwayland-egl1-mesa [libwayland-egl1]  13.0.6-1+b2
ii  libx11-62:1.6.4-3
ii  libxext62:1.3.3-1+b2
ii  libxinerama12:1.1.3-1+b3
ii  libxkbcommon0   0.7.1-2~deb9u1
ii  libxrandr2  2:1.5.1-1
ii  libxss1 1:1.2.2-1
ii  libxv1  2:1.0.11-1
ii  zlib1g  1:1.2.8.dfsg-5

Versions of packages mpv recommends:
ii  xdg-utils   1.1.1-1
ii  youtube-dl  2017.05.18.1-1

mpv suggests no packages.

-- no debconf information

peter@imager:~$ mpv tv://  --tv-device=/dev/video0
Playing: tv://
[tv] Selected driver: v4l2
[tv]  name: Video 4 Linux 2 input
[tv] your device driver does not support VIDIOC_G_STD ioctl, VIDIOC_G_PARM was 
used instead.
[tv] Selected device: UVC Camera (046d:0807)
[tv]  Capabilities:  video capture  read/write  streaming
[tv]  supported norms:
[tv]  inputs: 0 = Camera 1;
[tv]  Current input: 0
[tv]  Current format: YUYV
[tv] tv.c: norm_from_string(pal): Bogus norm parameter, setting default.
[tv] ioctl enum norm failed: Inappropriate ioctl for device
[tv] Error: Cannot set norm!
[tv] Selected input hasn't got a tuner!
[tv] ioctl set mute failed: Invalid argument
[tv] ioctl query control failed: Invalid argument
 (+) Video --vid=1 (rawvideo)
[vo/opengl] At least OpenGL 2.1 or OpenGL ES 2.0 required.
libva info: VA-API