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    10 mars 2010, par

    PHP et safe_mode activé
    Une des principales sources de problèmes relève de la configuration de PHP et notamment de l’activation du safe_mode
    La solution consiterait à soit désactiver le safe_mode soit placer le script dans un répertoire accessible par apache pour le site

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Récupération d’informations sur le site maître à l’installation d’une instance

    26 novembre 2010, par

    Utilité
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    Il peut donc être tout à fait judicieux de vouloir récupérer certaines de ces informations afin de compléter l’installation d’une instance pour, par exemple : récupérer le (...)

Sur d’autres sites (5179)

  • How can I fix this ffmpeg memory error on linux ?

    15 janvier 2020, par John

    I installed ffmpeg on my server and I am trying to create a simple slide show of two images named sample1.jpg and sample2.jpg.

    This is the command I’m using :

    ffmpeg -framerate 0.1 -i sample%d.jpg -c:v libx264 -r 30 -pix_fmt
    yuv420p out2.avi

    It fails with the message :

    > [swscaler @ 0x1ea0f40] deprecated pixel format used, make sure you did
    
> set range correctly [libx264 @ 0x1ecad80] using SAR=1/1 [libx264 @
    
> 0x1ecad80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX x264
    
> [error]: malloc of size 3771712 failed Output #0, avi, to 'out2.avi':
    
>     Stream #0:0: Video: h264, none, q=2-31, 128 kb/s, SAR 1:1 DAR 0:0, 30 fps
    
>     Metadata:
    
>       encoder         : Lavc56.26.100 libx264 Stream mapping:   Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264)) Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as
    
> bit_rate, rate, width or height

    The image size are both 1440x960.

    From what I interpret from the error code. Its failing to allocate 3MB of ram. When I check my memory with free -m. It says I have plenty of free memory :

                 total       used       free     shared    buffers     cached
    
Mem:          1024        863        160          2          0        577
    
-/+ buffers/cache:        286        737
    
Swap:            0          0          0

    I think I’m on Centos 6 x64 bit :

    centos-release-6-10.el6.centos.12.3.x86_64

    How can I get ffmpeg to make a slideshow of my images without running out of memory ?

    Edit : The entire log

    root@mysite [/home/myfolder/public_html]# ffmpeg -framerate 0.1 -i sample%d.jpg -c:v libx264 -r 30 -pix_fmt yuv420p out2.avi
    
ffmpeg version 2.6.8 Copyright (c) 2000-2016 the FFmpeg developers
    
  built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-16)
    
  configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg --l                                                         ibdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2                                                          -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic' --enable-bzlib --disable-cryst                                                         alhd --enable-gnutls --enable-ladspa --enable-libass --enable-libdc1394 --enable-libfaac --enable-nonfree --d                                                         isable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-openal --enable-libopenjp                                                         eg --enable-libopus --enable-libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-li                                                         btheora --enable-libvorbis --enable-libv4l2 --enable-libx264 --enable-libx265 --enable-libxvid --enable-x11gr                                                         ab --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --disable-static --enable-shared                                                          --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect
    
  libavutil      54. 20.100 / 54. 20.100
    
  libavcodec     56. 26.100 / 56. 26.100
    
  libavformat    56. 25.101 / 56. 25.101
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 11.102 /  5. 11.102
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  1.100 /  1.  1.100
    
  libpostproc    53.  3.100 / 53.  3.100
    
[mjpeg @ 0x1f1c5c0] Changeing bps to 8
    
Input #0, image2, from 'sample%d.jpg':
    
  Duration: 00:00:20.00, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 3024x4032 [SAR 96:96 DAR 3:4], 0.10 tbr                                                         , 0.10 tbn, 0.10 tbc
    
[swscaler @ 0x1ef2f40] deprecated pixel format used, make sure you did set range correctly
    
[libx264 @ 0x1f21860] using SAR=1/1
    
[libx264 @ 0x1f21860] frame MB size (189x252) > level limit (36864)
    
[libx264 @ 0x1f21860] DPB size (4 frames, 190512 mbs) > level limit (3 frames, 184320 mbs)
    
[libx264 @ 0x1f21860] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
x264 [error]: malloc of size 31393504 failed
    
Output #0, avi, to 'out2.avi':
    
    Stream #0:0: Video: h264, none, q=2-31, 128 kb/s, SAR 1:1 DAR 0:0, 30 fps
    
    Metadata:
    
      encoder         : Lavc56.26.100 libx264
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
    
Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width                                                          or height

  • Open VideoStream using OpenCV 4.5.1 works on Windows but fails on Docker python:3.9.2-slim-buster for specific IP cam

    18 mai 2021, par Qua285

    I have 2 ip cameras - one of Hikvision and another of Provision ISR. Both use Onvif and work on VLC.
I've written a simple python script to record images every 5 sec from their video stream.
On Windows 10, using VSCode they both work as expected. Once deployed to a Docker container, my script works as expected with the Hikvision but fails with the Provision ISR - it doesn't open the stream.

    


    Running python -c "import cv2; print(cv2.getBuildInformation())" on windows (venv 3.9.2) and on docker machine bring slightly different results but it's beyond my understanding to take something out of it...
Here is the Windows one :

    


    General configuration for OpenCV 4.5.1 =====================================
  Version control:               4.5.1

  Platform:
    Timestamp:                   2021-01-02T14:30:58Z
    Host:                        Windows 6.3.9600 AMD64
    CMake:                       3.18.4
    CMake generator:             Visual Studio 14 2015 Win64
    CMake build tool:            C:/Program Files (x86)/MSBuild/14.0/bin/MSBuild.exe
    MSVC:                        1900

  CPU/HW features:
    Baseline:                    SSE SSE2 SSE3
      requested:                 SSE3
    Dispatched code generation:  SSE4_1 SSE4_2 FP16 AVX AVX2
      requested:                 SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
      SSE4_1 (15 files):         + SSSE3 SSE4_1
      SSE4_2 (1 files):          + SSSE3 SSE4_1 POPCNT SSE4_2
      FP16 (0 files):            + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
      AVX (4 files):             + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
      AVX2 (29 files):           + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2

  C/C++:
    Built as dynamic libs?:      NO
    C++ standard:                11
    C++ Compiler:                C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/x86_amd64/cl.exe  (ver 19.0.24241.7)
    C++ flags (Release):         /DWIN32 /D_WINDOWS /W4 /GR  /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi  /fp:precise     /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 
/MP  /MT /O2 /Ob2 /DNDEBUG
    C++ flags (Debug):           /DWIN32 /D_WINDOWS /W4 /GR  /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi  /fp:precise     /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 
/MP  /MTd /Zi /Ob0 /Od /RTC1
    C Compiler:                  C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/x86_amd64/cl.exe
    C flags (Release):           /DWIN32 /D_WINDOWS /W3  /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi  /fp:precise     /MP   /MT /O2 /Ob2 /DNDEBUG
    C flags (Debug):             /DWIN32 /D_WINDOWS /W3  /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi  /fp:precise     /MP /MTd /Zi /Ob0 /Od /RTC1
    Linker flags (Release):      /machine:x64  /NODEFAULTLIB:atlthunk.lib /INCREMENTAL:NO  /NODEFAULTLIB:libcmtd.lib /NODEFAULTLIB:libcpmtd.lib /NODEFAULTLIB:msvcrtd.lib
    Linker flags (Debug):        /machine:x64  /NODEFAULTLIB:atlthunk.lib /debug /INCREMENTAL  /NODEFAULTLIB:libcmt.lib /NODEFAULTLIB:libcpmt.lib /NODEFAULTLIB:msvcrt.lib
    ccache:                      NO
    Precompiled headers:         YES
    Extra dependencies:          ade wsock32 comctl32 gdi32 ole32 setupapi ws2_32
    3rdparty dependencies:       ittnotify libprotobuf zlib libjpeg-turbo libwebp libpng libtiff libopenjp2 IlmImf quirc ippiw ippicv

  OpenCV modules:
    To be built:                 calib3d core dnn features2d flann gapi highgui imgcodecs imgproc ml objdetect photo python3 stitching video videoio
    Disabled:                    world
    Disabled by dependency:      -
    Unavailable:                 java python2 ts
    Applications:                -
    Documentation:               NO
    Non-free algorithms:         NO

  Windows RT support:            NO

  GUI:
    Win32 UI:                    YES
    VTK support:                 NO

  Media I/O:
    ZLib:                        build (ver 1.2.11)
    JPEG:                        build-libjpeg-turbo (ver 2.0.6-62)
    WEBP:                        build (ver encoder: 0x020f)
    PNG:                         build (ver 1.6.37)
    TIFF:                        build (ver 42 - 4.0.10)
    JPEG 2000:                   build (ver 2.3.1)
    OpenEXR:                     build (ver 2.3.0)
    HDR:                         YES
    SUNRASTER:                   YES
    PXM:                         YES
    PFM:                         YES

  Video I/O:
    DC1394:                      NO
    FFMPEG:                      YES (prebuilt binaries)
      avcodec:                   YES (58.91.100)
      avformat:                  YES (58.45.100)
      avutil:                    YES (56.51.100)
      swscale:                   YES (5.7.100)
      avresample:                YES (4.0.0)
    GStreamer:                   NO
    DirectShow:                  YES
    Media Foundation:            YES
      DXVA:                      NO

  Parallel framework:            Concurrency

  Trace:                         YES (with Intel ITT)

  Other third-party libraries:
    Intel IPP:                   2020.0.0 Gold [2020.0.0]
           at:                   C:/Users/appveyor/AppData/Local/Temp/1/pip-req-build-wvn_it83/_skbuild/win-amd64-3.9/cmake-build/3rdparty/ippicv/ippicv_win/icv
    Intel IPP IW:                sources (2020.0.0)
              at:                C:/Users/appveyor/AppData/Local/Temp/1/pip-req-build-wvn_it83/_skbuild/win-amd64-3.9/cmake-build/3rdparty/ippicv/ippicv_win/iw
    Lapack:                      NO
    Eigen:                       NO
    Custom HAL:                  NO
    Protobuf:                    build (3.5.1)

  OpenCL:                        YES (NVD3D11)
    Include path:                C:/Users/appveyor/AppData/Local/Temp/1/pip-req-build-wvn_it83/opencv/3rdparty/include/opencl/1.2
    Link libraries:              Dynamic load

  Python 3:
    Interpreter:                 C:/Python39-x64/python.exe (ver 3.9)
    Libraries:                   C:/Python39-x64/libs/python39.lib (ver 3.9.0)
    numpy:                       C:/Users/appveyor/AppData/Local/Temp/1/pip-build-env-sk7r7w_5/overlay/Lib/site-packages/numpy/core/include (ver 1.19.3)
    install path:                python

  Python (for build):            C:/Python27-x64/python.exe

  Java:
    ant:                         NO
    JNI:                         C:/Program Files/Java/jdk1.8.0/include C:/Program Files/Java/jdk1.8.0/include/win32 C:/Program Files/Java/jdk1.8.0/include
    Java wrappers:               NO
    Java tests:                  NO

  Install to:                    C:/Users/appveyor/AppData/Local/Temp/1/pip-req-build-wvn_it83/_skbuild/win-amd64-3.9/cmake-install
-----------------------------------------------------------------


    


    this is the Docker one (python:3.9.2-slim-buster) :

    


    General configuration for OpenCV 4.5.1 =====================================
  Version control:               4.5.1-dirty

  Platform:
    Timestamp:                   2021-01-02T13:04:10Z
    Host:                        Linux 4.15.0-1077-gcp x86_64
    CMake:                       3.18.4
    CMake generator:             Unix Makefiles
    CMake build tool:            /bin/gmake
    Configuration:               Release

  CPU/HW features:
    Baseline:                    SSE SSE2 SSE3
      requested:                 SSE3
    Dispatched code generation:  SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
      requested:                 SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
      SSE4_1 (15 files):         + SSSE3 SSE4_1
      SSE4_2 (1 files):          + SSSE3 SSE4_1 POPCNT SSE4_2
      FP16 (0 files):            + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
      AVX (4 files):             + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
      AVX2 (29 files):           + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
      AVX512_SKX (4 files):      + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_COMMON AVX512_SKX

  C/C++:
    Built as dynamic libs?:      NO
    C++ standard:                11
    C++ Compiler:                /usr/lib/ccache/compilers/c++  (ver 9.3.1)
    C++ flags (Release):         -Wl,-strip-all   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG  -DNDEBUG
    C++ flags (Debug):           -Wl,-strip-all   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -g  -O0 -DDEBUG -D_DEBUG
    C Compiler:                  /usr/lib/ccache/compilers/cc
    C flags (Release):           -Wl,-strip-all   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -O3 -DNDEBUG  -DNDEBUG
    C flags (Debug):             -Wl,-strip-all   -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Wno-comment -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections  -msse -msse2 -msse3 -fvisibility=hidden -g  -O0 -DDEBUG -D_DEBUG
    Linker flags (Release):      -Wl,--exclude-libs,libippicv.a -Wl,--exclude-libs,libippiw.a -L/root/ffmpeg_build/lib  -Wl,--gc-sections -Wl,--as-needed
    Linker flags (Debug):        -Wl,--exclude-libs,libippicv.a -Wl,--exclude-libs,libippiw.a -L/root/ffmpeg_build/lib  -Wl,--gc-sections -Wl,--as-needed
    ccache:                      YES
    Precompiled headers:         NO
    Extra dependencies:          ade Qt5::Core Qt5::Gui Qt5::Widgets Qt5::Test Qt5::Concurrent /lib64/libpng.so /lib64/libz.so dl m pthread rt
    3rdparty dependencies:       ittnotify libprotobuf libjpeg-turbo libwebp libtiff libopenjp2 IlmImf quirc ippiw ippicv

  OpenCV modules:
    To be built:                 calib3d core dnn features2d flann gapi highgui imgcodecs imgproc ml objdetect photo python3 stitching video videoio
    Disabled:                    world
    Disabled by dependency:      -
    Unavailable:                 java python2 ts
    Applications:                -
    Documentation:               NO
    Non-free algorithms:         NO

  GUI:
    QT:                          YES (ver 5.15.0)
      QT OpenGL support:         NO
    GTK+:                        NO
    VTK support:                 NO

  Media I/O:
    ZLib:                        /lib64/libz.so (ver 1.2.7)
    JPEG:                        libjpeg-turbo (ver 2.0.6-62)
    WEBP:                        build (ver encoder: 0x020f)
    PNG:                         /lib64/libpng.so (ver 1.5.13)
    TIFF:                        build (ver 42 - 4.0.10)
    JPEG 2000:                   build (ver 2.3.1)
    OpenEXR:                     build (ver 2.3.0)
    HDR:                         YES
    SUNRASTER:                   YES
    PXM:                         YES
    PFM:                         YES

  Video I/O:
    DC1394:                      NO
    FFMPEG:                      YES
      avcodec:                   YES (58.109.100)
      avformat:                  YES (58.61.100)
      avutil:                    YES (56.60.100)
      swscale:                   YES (5.8.100)
      avresample:                NO
    GStreamer:                   NO
    v4l/v4l2:                    YES (linux/videodev2.h)

  Parallel framework:            pthreads

  Trace:                         YES (with Intel ITT)

  Other third-party libraries:
    Intel IPP:                   2020.0.0 Gold [2020.0.0]
           at:                   /tmp/pip-req-build-ddpkm6fn/_skbuild/linux-x86_64-3.9/cmake-build/3rdparty/ippicv/ippicv_lnx/icv
    Intel IPP IW:                sources (2020.0.0)
              at:                /tmp/pip-req-build-ddpkm6fn/_skbuild/linux-x86_64-3.9/cmake-build/3rdparty/ippicv/ippicv_lnx/iw
    Lapack:                      NO
    Eigen:                       NO
    Custom HAL:                  NO
    Protobuf:                    build (3.5.1)

  OpenCL:                        YES (no extra features)
    Include path:                /tmp/pip-req-build-ddpkm6fn/opencv/3rdparty/include/opencl/1.2
    Link libraries:              Dynamic load

  Python 3:
    Interpreter:                 /opt/python/cp39-cp39/bin/python (ver 3.9)
    Libraries:                   libpython3.9.a (ver 3.9.0)
    numpy:                       /tmp/pip-build-env-jqrfyj0w/overlay/lib/python3.9/site-packages/numpy/core/include (ver 1.19.3)
    install path:                python

  Python (for build):            /bin/python2.7

  Java:
    ant:                         NO
    JNI:                         NO
    Java wrappers:               NO
    Java tests:                  NO

  Install to:                    /tmp/pip-req-build-ddpkm6fn/_skbuild/linux-x86_64-3.9/cmake-install
-----------------------------------------------------------------


    


    If relevant, the docker is installed on an Intel NUC with Ubuntu Desktop 20.04

    


    If relevant, this is the dockerfile I've used to build the image :

    


    FROM python:3.9.2-slim-buster as builder

# Keeps Python from generating .pyc files in the container
ENV PYTHONDONTWRITEBYTECODE=1
# Without this setting, Python never prints anything out.
ENV PYTHONUNBUFFERED=1

RUN pip install --upgrade pip
COPY ./Cam/requirements.txt .
RUN pip install -r requirements.txt
RUN apt-get update
RUN apt-get install ffmpeg libsm6 libxext6 -y

WORKDIR /app

FROM builder
COPY ./Cam .
CMD ["python", "camStreamer.py"]


    


    and last, this is the script code (simplified) :

    


    import os, logging, threading
from os.path import join
import sys, inspect, datetime, time
from pathlib import Path
import cv2
import imutils
from imutils.video import VideoStream

def StartRecording(showVideoWindow, interval, imagePath):
    key = None
    cam = VideoStream(os.getenv("CAM_RTSP")).start()
    counter = 0
    try:
        while True:
            ## 2 min retry to connect if frame is None
            if counter > 60/interval*2: break

            ts = time.time()
            ## Wait for [interval] seconds
            while ts + interval > time.time():
                continue
            print(f"Counter: {counter}, ts: {str(ts)}")

            frame = cam.read()
            if frame is None:
                counter += 1
                continue
            counter = 0

            print("frame is valid")
            if showVideoWindow:
                frame = imutils.resize(frame, width=1200)
                cv2.imshow('VIDEO', frame)

            imageName = f"{datetime.datetime.fromtimestamp(ts).strftime('%Y-%m-%dT%H_%M_%S')}.jpg"
            cv2.imwrite(join(imagePath, imageName), frame)
            print("saved image to disk")

            key = cv2.waitKey(1) & 0xFF
            if key == ord('q') or key == ord('r'):
                break

    except Exception as e:
        exc_tb = sys.exc_info()[2]
        extra = ""
        print(f"{inspect.stack()[0][3]}: {e} (lineno: {exc_tb.tb_lineno}) {extra}")
    finally:
        if showVideoWindow: cv2.destroyAllWindows()
        cam.stop()
        return key


while True:
    log.warning(f"Starting {Name}")
    key = StartRecording(
                showVideoWindow=(Env.startswith("development") and os.getenv("SHOW_VIDEO") == "True"),
                interval=int(os.getenv("SAVE_IMAGE_INTERVAL")),
                imagePath=os.getenv('CAPTURE_FOLDER')
                )
    if key == ord('q'):
        break


    


    I apologize for the very long post. Hopefully someone can put me on the right direction...

    


  • Stream RTP packets to FFMPEG [duplicate]

    21 mars 2017, par Johnathan Kanarek

    This question already has an answer here :

    I get RTP stream from WebRTC server (I used mediasoup) using node.js and I get the decrypted RTP packets raw data from the stream. I want to forward this RTP data to ffmpeg. I create SDP file that describes both the audio and video streams and send the packets through UDP.
    The SDP :

    v=0
    
o=mediasoup 7199daf55e496b370e36cd1d25b1ef5b9dff6858 0 IN IP4 192.168.193.182
    
s=7199daf55e496b370e36cd1d25b1ef5b9dff6858
    
c=IN IP4 192.168.193.182
    
t=0 0
    
m=audio 33400 RTP/AVP 111
    
a=rtpmap:111 /opus/48000
    
a=fmtp:111 minptime=10;useinbandfec=1
    
a=rtcp-fb:111 transport-cc
    
a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level
    
a=mid:audio
    
a=recvonly
    
m=video 33402 RTP/AVP 100
    
a=rtpmap:100 /VP8/90000
    
a=rtcp-fb:100 ccm fir
    
a=rtcp-fb:100 nack
    
a=rtcp-fb:100 nack pli
    
a=rtcp-fb:100 goog-remb
    
a=rtcp-fb:100 transport-cc
    
a=extmap:2 urn:ietf:params:rtp-hdrext:toffset
    
a=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
    
a=extmap:4 urn:3gpp:video-orientation
    
a=extmap:5 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01
    
a=extmap:6 http://www.webrtc.org/experiments/rtp-hdrext/playout-delay
    
a=mid:video
    
a=recvonly
    
a=rtcp-mux

    The command :
    ffmpeg -loglevel debug -analyzeduration 2147483647 -probesize 2147483647 -protocol_whitelist file,crypto,udp,rtp -re -vcodec vp8 -acodec opus -i test.sdp -vcodec h264 -acodec aac -y output.mp4

    The log :

    ffmpeg version 3.2
    
 Copyright (c) 2000-2016 the FFmpeg developers
    

    

    
  built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-11)
    

    
  configuration: --prefix=/opt/kaltura/ffmpeg-3.2 --libdir=/opt/kaltura/ffmpeg-3.2/lib --shlibdir=/opt/kaltura/ffmpeg-3.2/lib --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC -I/opt/kaltura/include' --extra-ldflags=-L/opt/kaltura/lib --disable-devices --enable-bzlib --enable-libgsm --enable-libmp3lame --enable-libschroedinger --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libx265 --enable-avisynth --enable-libxvid --enable-filter=movie --enable-avfilter --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libvpx --enable-libspeex --enable-libass --enable-postproc --enable-pthreads --enable-static --enable-shared --enable-gpl --disable-debug --disable-optimizations --enable-gpl --enable-pthreads --enable-swscale --enable-vdpau --enable-bzlib --disable-devices --enable-filter=movie --enable-version3 --enable-indev=lavfi --enable-x11grab
    

    
  libavutil      55. 34.100 / 55. 34.100
    

    
  libavcodec     57. 64.100 / 57. 64.100
    

    
  libavformat    57. 56.100 / 57. 56.100
    

    
  libavdevice    57.  1.100 / 57.  1.100
    

    
  libavfilter     6. 65.100 /  6. 65.100
    

    
  libswscale      4.  2.100 /  4.  2.100
    

    
  libswresample   2.  3.100 /  2.  3.100
    

    
  libpostproc    54.  1.100 / 54.  1.100
    

    
Splitting the commandline.
    

    
Reading option '-loglevel' ...
    
 matched as option 'loglevel' (set logging level) with argument 'debug'.
    

    
Reading option '-analyzeduration' ...
    
 matched as AVOption 'analyzeduration' with argument '2147483647'.
    

    
Reading option '-probesize' ...
    
 matched as AVOption 'probesize' with argument '2147483647'.
    

    
Reading option '-protocol_whitelist' ...
    
 matched as AVOption 'protocol_whitelist' with argument 'file,crypto,udp,rtp'.
    

    
Reading option '-re' ...
    
 matched as option 're' (read input at native frame rate) with argument '1'.
    

    
Reading option '-vcodec' ...
    
 matched as option 'vcodec' (force video codec ('copy' to copy stream)) with argument 'vp8'.
    

    
Reading option '-acodec' ...
    
 matched as option 'acodec' (force audio codec ('copy' to copy stream)) with argument 'opus'.
    
Reading option '-i' ... matched as input file with argument 'test.sdp'.
    
Reading option '-vcodec' ... matched as option 'vcodec' (force video codec ('copy' to copy stream)) with argument 'h264'.
    
Reading option '-acodec' ... matched as option 'acodec' (force audio codec ('copy' to copy stream)) with argument 'aac'.
    
Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
    
Reading option 'output.mp4' ... matched as output file.
    
Finished splitting the commandline.
    
Parsing a group of options: global .
    
Applying option loglevel (set logging level) with argument debug.
    
Applying option y (overwrite output files) with argument 1.
    
Successfully parsed a group of options.
    
Parsing a group of options: input file test.sdp.
    
Applying option re (read input at native frame rate) with argument 1.
    
Applying option vcodec (force video codec ('copy' to copy stream)) with argument vp8.
    
Applying option acodec (force audio codec ('copy' to copy stream)) with argument opus.
    
Successfully parsed a group of options.
    
Opening an input file: test.sdp.
    
[sdp @ 0xb1ef00] Format sdp probed with size=2048 and score=50
    
[sdp @ 0xb1ef00] audio codec set to: (null)
    
[sdp @ 0xb1ef00] audio samplerate set to: 44100
    
[sdp @ 0xb1ef00] audio channels set to: 1
    
[sdp @ 0xb1ef00] video codec set to: (null)
    
[udp @ 0xb21940] end receive buffer size reported is 131072
    
[udp @ 0xb21660] end receive buffer size reported is 131072
    
[sdp @ 0xb1ef00] setting jitter buffer size to 500
    
[udp @ 0xb21da0] end receive buffer size reported is 131072
    
[udp @ 0xb22060] end receive buffer size reported is 131072
    
[sdp @ 0xb1ef00] setting jitter buffer size to 500
    

    
[sdp @ 0xb1ef00] Before avformat_find_stream_info() pos: 889 bytes read:889 seeks:0 nb_streams:2
    

    
[vp8 @ 0xb27600] Header size larger than data provided
    

    
    Last message repeated 2 times
    
[sdp @ 0xb1ef00] Non-increasing DTS in stream 1: packet 2 with DTS 0, packet 3 with DTS 0
    
[vp8 @ 0xb27600] Header size larger than data provided
    

    
... repeats many times until I kill the socket ...
    

    
    Last message repeated 1 times
    
[sdp @ 0xb1ef00] Non-increasing DTS in stream 1: packet 273 with DTS 553050, packet 274 with DTS 553050
    
[vp8 @ 0xb27600] Header size larger than data provided
    

    
received id=7199daf55e496b370e36cd1d25b1ef5b9dff6858 type=bye
    
PeerConnection close. id=7199daf55e496b370e36cd1d25b1ef5b9dff6858
    
-- PeerConnection.closed,  err: undefined
    
-- peers in the room = 0
    
[sdp @ 0xb1ef00] decoding for stream 1 failed
    
[sdp @ 0xb1ef00] Could not find codec parameters for stream 1 (Video: vp8, 1 reference frame, yuv420p): unspecified size
    
Consider increasing the value for the 'analyzeduration' and 'probesize' options
    
[sdp @ 0xb1ef00] After avformat_find_stream_info() pos: 889 bytes read:889 seeks:0 frames:584
    
Input #0, sdp, from 'test.sdp':
    
  Metadata:
    
    title           : 7199daf55e496b370e36cd1d25b1ef5b9dff6858
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #0:0, 309, 1/90000: Audio: opus, 48000 Hz, mono, fltp
    
    Stream #0:1, 275, 1/90000: Video: vp8, 1 reference frame, yuv420p, 90k tbr, 90k tbn, 90k tbc
    
Successfully opened the file.
    
Parsing a group of options: output file output.mp4.
    
Applying option vcodec (force video codec ('copy' to copy stream)) with argument h264.
    
Applying option acodec (force audio codec ('copy' to copy stream)) with argument aac.
    
Successfully parsed a group of options.
    
Opening an output file: output.mp4.
    
Matched encoder 'libx264' for codec 'h264'.
    

    
[file @ 0xbc56e0]
    
Setting default whitelist 'file,crypto'
    

    
Successfully opened the file.
    

    
detected 1 logical cores
    

    
[graph 0 input from stream 0:1 @ 0xb1eca0]
    
Setting 'video_size' to value '0x0'
    

    
[buffer @ 0xbc54e0]
    
Unable to parse option value "0x0" as image size
    

    
[graph 0 input from stream 0:1 @ 0xb1eca0]
    
Setting 'pix_fmt' to value '0'
    

    
[graph 0 input from stream 0:1 @ 0xb1eca0]
    
Setting 'time_base' to value '1/90000'
    

    
[graph 0 input from stream 0:1 @ 0xb1eca0] Setting 'pixel_aspect' to value '0/1'
    
[graph 0 input from stream 0:1 @ 0xb1eca0] Setting 'sws_param' to value 'flags=2'
    
[graph 0 input from stream 0:1 @ 0xb1eca0] Setting 'frame_rate' to value '90000/1'
    
[buffer @ 0xbc54e0] Unable to parse option value "0x0" as image size
    
[buffer @ 0xbc54e0] Error setting option video_size to value 0x0.
    
[graph 0 input from stream 0:1 @ 0xb1eca0] Error applying options to the filter.
    
Error opening filters!
    
[AVIOContext @ 0xbc57c0] Statistics: 0 seeks, 0 writeouts
    

    
[AVIOContext @ 0xb1f8c0]
    
Statistics: 889 bytes read, 0 seeks

    As you can see, at the beginning of the log the SDP parsed without recognizing the codecs :

    Opening an input file: test.sdp.
    
[sdp @ 0xb1ef00] Format sdp probed with size=2048 and score=50
    
[sdp @ 0xb1ef00] audio codec set to: (null)
    
[sdp @ 0xb1ef00] audio samplerate set to: 44100
    
[sdp @ 0xb1ef00] audio channels set to: 1
    
[sdp @ 0xb1ef00] video codec set to: (null)

    Then it’s trying to read the packets from the sockets.
    Only when I close the socket, ffmpeg continues to parse the SDP, this time finding the correct codec :

    Opening an input file: test.sdp.
    
[sdp @ 0xb1ef00] Format sdp probed with size=2048 and score=50
    
[sdp @ 0xb1ef00] audio codec set to: (null)
    
[sdp @ 0xb1ef00] audio samplerate set to: 44100
    
[sdp @ 0xb1ef00] audio channels set to: 1
    
[sdp @ 0xb1ef00] video codec set to: (null)

    I suspect that the "Non-increasing DTS" and "Header size larger than data provided" errors are caused by wrong parsing of the packets due to usage with the wrong codec.

    I checked the SDP order and it seems the same as in other examples I have.

    Can someone suggest an explanation ?

    BTW, audio only works fine, but I guess it’s because of the simplicity of OPUS.

    Thanks.

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