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• TCP connection refused when using ffserver / ffmpeg and errors

  21 octobre 2017, par Skysurf

  If I run

   ffserver -f /etc/ffserver.conf & ffmpeg -f v4l2 -s 320x240 -r 25 -i /dev/video0 -f alsa -ac 1 -i hw:1,0 http://localhost:8090/feed1.ffm
  
  [2] 1408
  
  ffserver version N-87737-g0a499d6a57 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 6.3.0 (Raspbian 6.3.0-18+rpi1) 20170516
  
    configuration:
  
    libavutil      55. 77.101 / 55. 77.101
  
    libavcodec     57.106.104 / 57.106.104
  
    libavformat    57. 82.102 / 57. 82.102
  
    libavdevice    57.  9.101 / 57.  9.101
  
    libavfilter     6.106.100 /  6.106.100
  
    libswscale      4.  7.103 /  4.  7.103
  
    libswresample   2.  8.100 /  2.  8.100
  
  /etc/ffserver.conf:167: Setting default value for video bit rate tolerance = 1000. Use NoDefaults to disable it.
  
  /etc/ffserver.conf:167: Setting default value for video rate control equation = tex^qComp. Use NoDefaults to disable it.
  
  /etc/ffserver.conf:167: Setting default value for video max rate = 24952432. Use NoDefaults to disable it.
  
  /etc/ffserver.conf:222: Setting default value for audio sample rate = 22050. Use NoDefaults to disable it.
  
  /etc/ffserver.conf:222: Setting default value for audio channel count = 1. Use NoDefaults to disable it.
  
  /etc/ffserver.conf:222: Setting default value for video bit rate tolerance = 64000. Use NoDefaults to disable it.
  
  /etc/ffserver.conf:222: Setting default value for video rate control equation = tex^qComp. Use NoDefaults to disable it.
  
  /etc/ffserver.conf:222: Setting default value for video max rate = 24994880. Use NoDefaults to disable it.
  
  Thu Oct 19 23:34:19 2017 Codecs do not match for stream 0
  
  Thu Oct 19 23:34:19 2017 [ffm @ 0x17cb630]Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
  
  Thu Oct 19 23:34:19 2017 [ffm @ 0x17cb630]Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
  
  Thu Oct 19 23:34:19 2017 [ffm @ 0x17cb630]Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
  
  Thu Oct 19 23:34:19 2017 [ffm @ 0x17cb630]Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
  
  bind(port 8090): Address already in use
  
  Thu Oct 19 23:34:19 2017 Could not start server
  
  ffmpeg version N-87737-g0a499d6a57 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 6.3.0 (Raspbian 6.3.0-18+rpi1) 20170516
  
    configuration:
  
    libavutil      55. 77.101 / 55. 77.101
  
    libavcodec     57.106.104 / 57.106.104
  
    libavformat    57. 82.102 / 57. 82.102
  
    libavdevice    57.  9.101 / 57.  9.101
  
    libavfilter     6.106.100 /  6.106.100
  
    libswscale      4.  7.103 /  4.  7.103
  
    libswresample   2.  8.100 /  2.  8.100
  
  [video4linux2,v4l2 @ 0x23d12f0] The driver changed the time per frame from 1/25 to 1/30
  
  Input #0, video4linux2,v4l2, from '/dev/video0':
  
    Duration: N/A, start: 92101.062574, bitrate: 36864 kb/s
  
      Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 320x240, 36864 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
  
  Guessed Channel Layout for Input Stream #1.0 : mono
  
  Input #1, alsa, from 'hw:1,0':
  
    Duration: N/A, start: 1508452461.198008, bitrate: 768 kb/s
  
      Stream #1:0: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
  
  [tcp @ 0x23d5710] Connection to tcp://localhost:8090 failed (Connection refused), trying next address
  
  Thu Oct 19 23:34:21 2017 127.0.0.1 - - [GET] "/feed1.ffm HTTP/1.1" 200 4175
  
  [tcp @ 0x2409c20] Connection to tcp://localhost:8090 failed (Connection refused), trying next address
  
  Stream mapping:
  
    Stream #1:0 -> #0:0 (pcm_s16le (native) -> mp2 (native))
  
    Stream #0:0 -> #0:1 (rawvideo (native) -> mpeg1video (native))
  
    Stream #1:0 -> #0:2 (pcm_s16le (native) -> wmav2 (native))
  
    Stream #0:0 -> #0:3 (rawvideo (native) -> msmpeg4v3 (msmpeg4))
  
  Press [q] to stop, [?] for help
  
  [alsa @ 0x23d3500] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8)
  
  [mpeg1video @ 0x23f0880] MPEG-1/2 does not support 3/1 fps
  
  Error initializing output stream 0:1 -- Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height
  
  Thu Oct 19 23:34:22 2017 127.0.0.1 - - [POST] "/feed1.ffm HTTP/1.1" 200 0
  
  [video4linux2,v4l2 @ 0x23d12f0] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8)
  
  [video4linux2,v4l2 @ 0x23d12f0] Some buffers are still owned by the caller on close.
  
  Conversion failed!
  
  [2]+  Exit 1                  ffserver -f /etc/ffserver.conf

  anyone can solve this please ?
  thanks.

  enter link description here

• Anomalie #3935 (Fermé) : SPIP 3 / php 7 : problème de connexion mysql (?)

  24 avril 2017, par tcharlss (*´_ゝ｀)

  En SPIP 3, ubuntu + php7, SPIP ne semble pas parvenir à se connecter à mysql.
  En installant un SPIP neuf, lors du choix du type de base de donnée, il n’y a pas mysql.
  Avec un site déjà installé (qui fonctionne bien en php 5), message d’erreur : Attention : un problème technique (serveur SQL) empêche l’accès à cette partie du site.

  Avec SPIP 3.1, aucun souci.

  J’ai bien le paquet php-mysql d’installé, voilà la liste complète des paquets installés :

  libapache2-mod-php7.0 - langage de script inclus dans du HTML et exécuté côté serveur - module Apache 2
  php7.0 - langage de script côté serveur, inclus dans du HTML (méta-paquet)
  php7.0-cgi - Langage de script intégré à HTML et exécuté côté serveur (binaire CGI)
  php7.0-cli - command-line interpreter for the PHP scripting language
  php7.0-common - documentation, examples and common module for PHP
  php7.0-curl - CURL module for PHP
  php7.0-dev - Files for PHP7.0 module development
  php7.0-gd - GD module for PHP
  php7.0-gmp - GMP module for PHP
  php7.0-json - JSON module for PHP
  php7.0-ldap - LDAP module for PHP
  php7.0-mysql - MySQL module for PHP
  php7.0-odbc - ODBC module for PHP
  php7.0-opcache - Zend OpCache module for PHP
  php7.0-pgsql - PostgreSQL module for PHP
  php7.0-pspell - pspell module for PHP
  php7.0-readline - readline module for PHP
  php7.0-recode - recode module for PHP
  php7.0-snmp - SNMP module for PHP
  php7.0-sqlite3 - SQLite3 module for PHP
  php7.0-tidy - tidy module for PHP
  php7.0-xml - DOM, SimpleXML, WDDX, XML, and XSL module for PHP
  php7.0-xmlrpc - XMLRPC-EPI module for PHP
  php-all-dev - package depending on all supported PHP development packages
  libphp7.0-embed - HTML-embedded scripting language (Embedded SAPI library)
  php-geoip - GeoIP module for PHP
  php-xdebug - Xdebug Module for PHP
  php7.0-bcmath - Bcmath module for PHP
  php7.0-bz2 - bzip2 module for PHP
  php7.0-dba - DBA module for PHP
  php7.0-enchant - Enchant module for PHP
  php7.0-fpm - server-side, HTML-embedded scripting language (FPM-CGI binary)
  php7.0-imap - IMAP module for PHP
  php7.0-interbase - Interbase module for PHP
  php7.0-intl - Internationalisation module for PHP
  php7.0-mbstring - MBSTRING module for PHP
  php7.0-mcrypt - libmcrypt module for PHP
  php7.0-phpdbg - server-side, HTML-embedded scripting language (PHPDBG binary)
  php7.0-soap - SOAP module for PHP
  php7.0-sybase - Sybase module for PHP
  php7.0-zip - Zip module for PHP
  php-amqp - AMQP extension for PHP
  php-apcu - APC User Cache for PHP
  php-gearman - PHP wrapper to libgearman
  php-gmagick - Provides a wrapper to the GraphicsMagick library
  php-gnupg - PHP wrapper around the gpgme library
  php-http - PECL HTTP module for PHP Extended HTTP Support
  php-igbinary - igbinary PHP serializer
  php-imagick - Provides a wrapper to the ImageMagick library
  php-libsodium - PHP wrapper for the Sodium cryptographic library
  php-mailparse - Email message manipulation for PHP
  php-memcache - memcache extension module for PHP
  php-memcached - memcached extension module for PHP, uses libmemcached
  php-mongodb - MongoDB driver for PHP
  php-msgpack - PHP extension for interfacing with MessagePack
  php-oauth - OAuth 1.0 consumer and provider extension
  php-pinba - Pinba module for PHP
  php-propro - propro module for PHP
  php-ps - ps module for PHP
  php-radius - radius client library for PHP
  php-raphf - raphf module for PHP
  php-redis - PHP extension for interfacing with Redis
  php-remctl - PECL module for Kerberos-authenticated command execution
  php-rrd - PHP bindings to rrd tool system
  php-smbclient - PHP wrapper for libsmbclient
  php-solr - PHP extension for communicating with Apache Solr server
  php-ssh2 - Bindings for the libssh2 library
  php-stomp - Streaming Text Oriented Messaging Protocol (STOMP) client module for PHP
  php-symfony-polyfill-php70 - Symfony polyfill backporting some PHP 7.0+ features to lower PHP versions
  php-tideways - Tideways PHP Profiler Extension
  php-uploadprogress - file upload progress tracking extension for PHP
  php-uuid - PHP UUID extension
  php-yac - YAC (Yet Another Cache) for PHP
  php-yaml - YAML-1.1 parser and emitter for PHP

• Screen capture (video screencast) with FFMPEG with very low FPS

  20 septembre 2023, par jesusda

  I recently changed PCs, I went from having an Intel Core i5 4460 with integrated graphics card to a Xeon E5 2678 v3 with AMD RADEON RX 550 graphics.

  


  On paper, the new PC is on the order of 3 to 7 times more powerful than the old one and I can attest that this is the case in daily use, video and image editing etc. The advantage of having so many cores and threads available is palpable. In terms of games I haven't tried it because I'm not really a gamer and the few games I use are the typical free ones that come with Debian and some emulators that, honestly, already worked fine with the old PC.

  


  However there is one task that brings me head over heels for its terrible performance : video screen capture.

  


  With my old PC I was able to capture at over 60 fps at full screen while doing any task I needed to record.

  


  Even with my lenovo thinkpad x230 I am able to capture screen at over 80fps with total fluency.

  


  The command I have always used is :

  


  ffmpeg  -f x11grab -draw_mouse 1 -framerate 60 -video_size 1920x1200 -i :0.0+1680,0  -qscale 0 -pix_fmt yuv420p -c:v libx264 -preset medium -qp 0 -q:v 1 -s 1920x1200 -f matroska -threads 4 video.mkv


  


  notes :

  


  -video_size 1920x1200 -i :0.0+1680,0 y -s 1920x1200 are the dimensions and position of the region to capture (my right monitor).

  


  Notice that I even used -preset medium and software encoding, so I got very good quality even with that parameter setting and without ever going below 60 fps.

  


  What happens to me now ?

  


  The equipment is unable to capture more than 20 fps which makes any video invalid, with frame drops and not even reach 30fps, which would be the minimum required.

  


  In addition, it is quite noticeable the decrease in responsiveness of the PC as soon as I launch the command. That is, all that fluidity and smoothness that is appreciated when working normally, disappears and even moving a window from one side to another is rough and stumbling.

  


  I have tried with different parameters of ffmpeg, to capture raw, without encoding.

  


  I have tried saving the resulting video directly to RAM disk in order to avoid the possible bottleneck of writing to disk. It doesn't affect it at all.

  


  So, does anyone have any suggestions as to at least where I can dig further to find a solution to the problem ?

  


  Additional data, in case it helps :

  


  $ → inxi
CPU: 12-Core Intel Xeon E5-2678 v3 (-MT MCP-)
speed/min/max: 1201/1200/3300 MHz Kernel: 5.10.0-0.bpo.4-amd64 x86_64
Up: 1d 6h 55m Mem: 6427.6/32012.4 MiB (20.1%)
Storage: 13.76 TiB (55.9% used) Procs: 433 Shell: bash 5.0.18 inxi: 3.0.32


$ → ffmpeg -v
ffmpeg version 4.1.6 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 8 (Debian 8.3.0-6)
  configuration: --disable-decoder=amrnb --disable-decoder=libopenjpeg --disable-libopencv --disable-outdev=sdl2 --disable-podpages --disable-sndio --disable-stripping --enable-libaom --enable-avfilter --enable-avresample --enable-gcrypt --disable-gnutls --enable-openssl --enable-gpl --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libfdk-aac --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libilbc --enable-libkvazaar --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx265 --enable-libzimg --enable-libxvid --enable-libzvbi --enable-nonfree --enable-opencl --enable-opengl --enable-postproc --enable-pthreads --enable-shared --enable-version3 --enable-libwebp --incdir=/usr/include/x86_64-linux-gnu --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --toolchain=hardened --enable-frei0r --enable-chromaprint --enable-libx264 --enable-libiec61883 --enable-libdc1394 --enable-vaapi --enable-libmfx --enable-libvmaf --disable-altivec --shlibdir=/usr/lib/x86_64-linux-gnu
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100


  


  I have the free amdgpu drivers (not amdgpu-pro), but I activated OpenCL just in case.

  


  I followed this tutorial.

  


  $ → glxinfo | grep OpenGL
OpenGL vendor string: AMD
OpenGL renderer string: Radeon RX550/550 Series (POLARIS12, DRM 3.40.0, 5.10.0-0.bpo.4-amd64, LLVM 11.0.1)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 20.3.4
OpenGL core profile shading language version string: 4.60
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 4.6 (Compatibility Profile) Mesa 20.3.4
OpenGL shading language version string: 4.60
OpenGL context flags: (none)
OpenGL profile mask: compatibility profile
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 20.3.4
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
OpenGL ES profile extensions:





$ → clinfo
Number of platforms                               1
  Platform Name                                   Clover
  Platform Vendor                                 Mesa
  Platform Version                                OpenCL 1.1 Mesa 20.3.4
  Platform Profile                                FULL_PROFILE
  Platform Extensions                             cl_khr_icd
  Platform Extensions function suffix             MESA

  Platform Name                                   Clover
Number of devices                                 1
  Device Name                                     Radeon RX550/550 Series (POLARIS12, DRM 3.40.0, 5.10.0-0.bpo.4-amd64, LLVM 11.0.1)
  Device Vendor                                   AMD
  Device Vendor ID                                0x1002
  Device Version                                  OpenCL 1.1 Mesa 20.3.4
  Driver Version                                  20.3.4
  Device OpenCL C Version                         OpenCL C 1.1
  Device Type                                     GPU
  Device Profile                                  FULL_PROFILE
  Device Available                                Yes
  Compiler Available                              Yes
  Max compute units                               8
  Max clock frequency                             1183MHz
  Max work item dimensions                        3
  Max work item sizes                             256x256x256
  Max work group size                             256
  Preferred work group size multiple              64
  Preferred / native vector sizes
    char                                                16 / 16
    short                                                8 / 8
    int                                                  4 / 4
    long                                                 2 / 2
    half                                                 0 / 0        (n/a)
    float                                                4 / 4
    double                                               2 / 2        (cl_khr_fp64)
  Half-precision Floating-point support           (n/a)
  Single-precision Floating-point support         (core)
    Denormals                                     No
    Infinity and NANs                             Yes
    Round to nearest                              Yes
    Round to zero                                 No
    Round to infinity                             No
    IEEE754-2008 fused multiply-add               No
    Support is emulated in software               No
    Correctly-rounded divide and sqrt operations  No
  Double-precision Floating-point support         (cl_khr_fp64)
    Denormals                                     Yes
    Infinity and NANs                             Yes
    Round to nearest                              Yes
    Round to zero                                 Yes
    Round to infinity                             Yes
    IEEE754-2008 fused multiply-add               Yes
    Support is emulated in software               No
  Address bits                                    64, Little-Endian
  Global memory size                              3221225472 (3GiB)
  Error Correction support                        No
  Max memory allocation                           1717986918 (1.6GiB)
  Unified memory for Host and Device              No
  Minimum alignment for any data type             128 bytes
  Alignment of base address                       32768 bits (4096 bytes)
  Global Memory cache type                        None
  Image support                                   No
  Local memory type                               Local
  Local memory size                               32768 (32KiB)
  Max number of constant args                     16
  Max constant buffer size                        67108864 (64MiB)
  Max size of kernel argument                     1024
  Queue properties
    Out-of-order execution                        No
    Profiling                                     Yes
  Profiling timer resolution                      0ns
  Execution capabilities
    Run OpenCL kernels                            Yes
    Run native kernels                            No
  Device Extensions cl_khr_byte_addressable_store cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_fp64

NULL platform behavior
  clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...)  Clover
  clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...)   Success [MESA]
  clCreateContext(NULL, ...) [default]            Success [MESA]
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_DEFAULT)  Success (1)
    Platform Name                                 Clover
    Device Name                                   Radeon RX550/550 Series (POLARIS12, DRM 3.40.0, 5.10.0-0.bpo.4-amd64, LLVM 11.0.1)
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU)  Success (1)
    Platform Name                                 Clover
    Device Name                                   Radeon RX550/550 Series (POLARIS12, DRM 3.40.0, 5.10.0-0.bpo.4-amd64, LLVM 11.0.1)
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_ACCELERATOR)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_CUSTOM)  No devices found in platform
  clCreateContextFromType(NULL, CL_DEVICE_TYPE_ALL)  Success (1)
    Platform Name                                 Clover
    Device Name                                   Radeon RX550/550 Series (POLARIS12, DRM 3.40.0, 5.10.0-0.bpo.4-amd64, LLVM 11.0.1)

ICD loader properties
  ICD loader Name                                 OpenCL ICD Loader
  ICD loader Vendor                               OCL Icd free software
  ICD loader Version                              2.2.12
  ICD loader Profile                              OpenCL 2.2


  


  This would not be a tearing problem, as no tearing is visible when playing videos and the TearFree driver policy is enabled.

  


  $ → xrandr --verbose | grep TearFree
    TearFree: on
    TearFree: on
    TearFree: on