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  • OpenCV 3.4.3 - GStream not called when VideoWriting

    14 décembre 2018, par taubhi

    I’d like to succeed writing a file with OpenCV encoding with GStreamer.

    Thus I’m using the code :

    VideoWriter.open("appsrc ! autovideoconvert ! omxh264enc ! matroskamux ! filesink location=test2.mkv sync=false",
    
//cv::CAP_GSTREAMER, //set or not, I get the same problem
    
0, (double)25, //fourcc, fps
    
cv::Size(1024, 1024), 
    
true);

    And my problem :

    A video file called appsrc ! autovideoconvert ! omxh264enc ! matroskamux ! filesink location=test2.mkv sync=false is created (rather than test2.mkv), and it is empty. The same problem is corrected and seems to work in the following thread, without any effect for me : Opening a GStreamer pipeline from OpenCV with VideoWriter

    I tried, without success :

    • Add quotes to the file name test2 :
      "appsrc ! autovideoconvert ! omxh264enc ! matroskamux ! filesink location=\"test2.mkv\" sync=false" neither
    • Encode with different format : .flv rather than .mkv
    • Encode with different codec : omxh265enc rather than omxh264en

    I checked :

    • That GStreamer is well compiled with OpenCV ; the CMake of the OpenCV project outputs :

      Video I/O:Video for Windows : YES
      DC1394 : NO
      FFMPEG : YES (prebuilt binaries)
      avcodec : YES (ver 57.107.100)
      avformat : YES (ver 57.83.100)
      avutil : YES (ver 55.78.100)
      swscale : YES (ver 4.8.100)
      avresample : YES (ver 3.7.0)
      GStreamer :

      base : YES (ver 1.0)

      video : YES (ver 1.0)

      app : YES (ver 1.0)

      riff : YES (ver 1.0)

      pbutils : YES (ver 1.0)

      DirectShow : YES

      Media Foundation : YES

    • That FFMpeg is installed on my computer ; for this I used VLC :

      File -> Stream -> Add a file then stream
      New destination : RTP/MPEG Transport Stream
      Profile : Video - H.264 + MP3 (MP4)
      Then no error happens ; Note : an error occured with Video - H.265 + MP3
      (MP4), but I’m using omxh264enc in my code, not 265

    I’m struggled :/ Do you have any idea ?
    Thanks a lot :)

    Have a good day,

    Thibaut

    PS - Complete OpenCV CMake output :

    Selecting Windows SDK version 10.0.17134.0 to target Windows 10.0.17763.
    
AVX_512F is not supported by C++ compiler
    

    
AVX512_SKX is not supported by C++ compiler
    

    
Dispatch optimization AVX512_SKX is not available, skipped
    

    
libjpeg-turbo: VERSION = 1.5.3, BUILD = opencv-3.4.3-libjpeg-turbo
    

    
Looking for Mfapi.h
    

    
Looking for Mfapi.h - found
    

    
found Intel IPP (ICV version): 2017.0.3 [2017.0.3]
    

    
at: E:/OpenCV/3.4.3/build-cuda92-gstreamer/3rdparty/ippicv/ippicv_win
    

    
found Intel IPP IW sources: 2017.0.3
    

    
at: E:/OpenCV/3.4.3/build-cuda92-gstreamer/3rdparty/ippicv/ippiw_win
    

    
CUDA detected: 9.2
    

    
CUDA NVCC target flags: -gencode;arch=compute_30,code=sm_30;-gencode;arch=compute_35,code=sm_35;-gencode;arch=compute_37,code=sm_37;-gencode;arch=compute_50,code=sm_50;-gencode;arch=compute_52,code=sm_52;-gencode;arch=compute_60,code=sm_60;-gencode;arch=compute_61,code=sm_61;-gencode;arch=compute_70,code=sm_70;-D_FORCE_INLINES
    

    
Found apache ant: C:/NVPACK/apache-ant-1.8.2/bin/ant.bat (1.8.2)
    

    
Could NOT find Matlab (missing: MATLAB_MEX_SCRIPT MATLAB_INCLUDE_DIRS MATLAB_ROOT_DIR MATLAB_LIBRARIES MATLAB_LIBRARY_DIRS MATLAB_MEXEXT MATLAB_ARCH MATLAB_BIN)
    

    
VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
    

    
Caffe: NO
    

    
Protobuf: NO
    

    
Glog: YES
    

    
freetype2: NO
    

    
harfbuzz: NO
    

    
Module opencv_ovis disabled because OGRE3D was not found
    

    
No preference for use of exported gflags CMake configuration set, and no hints for include/library directories provided. Defaulting to preferring an installed/exported gflags CMake configuration if available.
    

    
Found installed version of gflags: E:/Git/gflags/BUILD-VS2015
    

    
Detected gflags version: 2.2.1
    

    
Checking SFM deps... FALSE
    

    
Module opencv_sfm disabled because the following dependencies are not found: Eigen Glog/Gflags
    

    
Excluding from source files list: <build>/modules/dnn/layers/layers_common.avx512_skx.cpp
    

    
Tesseract: NO
    

    

    
General configuration for OpenCV 3.4.3 =====================================
    

    
Version control: unknown
    

    

    
Extra modules:
    

    
Location (extra): E:/OpenCV/3.4.3/opencv_contrib-3.4.3/modules
    

    
Version control (extra): unknown
    

    

    
Platform:
    

    
Timestamp: 2018-11-07T16:57:18Z
    

    
Host: Windows 10.0.17763 AMD64
    

    
CMake: 3.12.0-rc2
    

    
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 (5 files): + SSSE3 SSE4_1
    

    
SSE4_2 (2 files): + SSSE3 SSE4_1 POPCNT SSE4_2
    

    
FP16 (2 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
    

    
AVX (6 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
    

    
AVX2 (11 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
    

    

    
C/C++:
    

    
Built as dynamic libs?: YES
    

    
C++11: YES
    

    
C++ Compiler: C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin/x86_amd64/cl.exe (ver 19.0.24215.1)
    

    
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 /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /MP16 /MD /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 /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /MP16 /MDd /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 /MP16 /MD /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 /MP16 /MDd /Zi /Ob0 /Od /RTC1
    

    
Linker flags (Release): /machine:x64 /INCREMENTAL:NO
    

    
Linker flags (Debug): /machine:x64 /debug /INCREMENTAL
    

    
ccache: NO
    

    
Precompiled headers: YES
    

    
Extra dependencies: cudart.lib nppc.lib nppial.lib nppicc.lib nppicom.lib nppidei.lib nppif.lib nppig.lib nppim.lib nppist.lib nppisu.lib nppitc.lib npps.lib cublas.lib cufft.lib -LIBPATH:C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v9.2/lib/x64
    

    
3rdparty dependencies:
    

    

    
OpenCV modules:
    

    
To be built: aruco bgsegm bioinspired calib3d ccalib core cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev datasets dnn dnn_objdetect dpm face features2d flann fuzzy hfs highgui img_hash imgcodecs imgproc java java_bindings_generator line_descriptor ml objdetect optflow phase_unwrapping photo plot python_bindings_generator reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking ts video videoio videostab xfeatures2d ximgproc xobjdetect xphoto
    

    
Disabled: js world
    

    
Disabled by dependency: -
    

    
Unavailable: cnn_3dobj cvv freetype hdf matlab ovis python2 python3 sfm viz
    

    
Applications: tests perf_tests apps
    

    
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 1.5.3-62)
    

    
WEBP: build (ver encoder: 0x020e)
    

    
PNG: build (ver 1.6.34)
    

    
TIFF: build (ver 42 - 4.0.9)
    

    
JPEG 2000: build (ver 1.900.1)
    

    
OpenEXR: build (ver 1.7.1)
    

    
HDR: YES
    

    
SUNRASTER: YES
    

    
PXM: YES
    

    

    
Video I/O:
    

    
Video for Windows: YES
    

    
DC1394: NO
    

    
FFMPEG: YES (prebuilt binaries)
    

    
avcodec: YES (ver 57.107.100)
    

    
avformat: YES (ver 57.83.100)
    

    
avutil: YES (ver 55.78.100)
    

    
swscale: YES (ver 4.8.100)
    

    
avresample: YES (ver 3.7.0)
    

    
GStreamer:
    

    
base: YES (ver 1.0)
    

    
video: YES (ver 1.0)
    

    
app: YES (ver 1.0)
    

    
riff: YES (ver 1.0)
    

    
pbutils: YES (ver 1.0)
    

    
DirectShow: YES
    

    
Media Foundation: YES
    

    

    
Parallel framework: Concurrency
    

    

    
Trace: YES (with Intel ITT)
    

    

    
Other third-party libraries:
    

    
Intel IPP: 2017.0.3 [2017.0.3]
    

    
at: E:/OpenCV/3.4.3/build-cuda92-gstreamer/3rdparty/ippicv/ippicv_win
    

    
Intel IPP IW: sources (2017.0.3)
    

    
at: E:/OpenCV/3.4.3/build-cuda92-gstreamer/3rdparty/ippicv/ippiw_win
    

    
Custom HAL: NO
    

    
Protobuf: build (3.5.1)
    

    

    
NVIDIA CUDA: YES (ver 9.2, CUFFT CUBLAS NVCUVID)
    

    
NVIDIA GPU arch: 30 35 37 50 52 60 61 70
    

    
NVIDIA PTX archs:
    

    

    
OpenCL: YES (no extra features)
    

    
Include path: E:/OpenCV/3.4.3/opencv-3.4.3/3rdparty/include/opencl/1.2
    

    
Link libraries: Dynamic load
    

    

    
Python (for build): C:/ProgramData/Miniconda3/python.exe
    

    

    
Java:
    

    
ant: C:/NVPACK/apache-ant-1.8.2/bin/ant.bat (ver 1.8.2)
    

    
JNI: C:/NVPACK/jdk1.8.0_77/include C:/NVPACK/jdk1.8.0_77/include/win32 C:/NVPACK/jdk1.8.0_77/include
    

    
Java wrappers: YES
    

    
Java tests: YES
    

    

    
Matlab: NO
    

    

    
Install to: E:/OpenCV/3.4.3/build/install
    

    
-----------------------------------------------------------------
    

    

    
Configuring done
    
</build>

  • rtpdec_hevc : Drop a duplicated, nonstandard entry

    17 septembre 2014, par Vittorio Giovara
    rtpdec_hevc : Drop a duplicated, nonstandard entry

    The RFC spec draft only specifies the "H265" name - there is no
    
specification saying how to interpret "HEVC" (if such a packet
    
format is specified it could be an entirely different format).
    

    Since this is a very new standard (still a draft), there is little
    
need for compatibility with existing, broken implementations. Therefore
    
remove the extra alias, to avoid the risk of encouraging incorrect
    
usage.
    

    Intentionally keeping the ff_hevc_dynamic_handler name for the
    
handler, to use "hevc" consistently as name for the codec instead
    
of "h265" within the library internals as long as there only is one
    
single variant in actual use.
    

    Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DH] libavformat/rtpdec.c
    • [DH] libavformat/rtpdec_formats.h
    • [DH] libavformat/rtpdec_hevc.c

  • rtpdec_hevc : Drop a duplicated, nonstandard entry

    17 septembre 2014, par Vittorio Giovara
    rtpdec_hevc : Drop a duplicated, nonstandard entry

    The RFC spec draft only specifies the "H265" name - there is no
    
specification saying how to interpret "HEVC" (if such a packet
    
format is specified it could be an entirely different format).
    

    Since this is a very new standard (still a draft), there is little
    
need for compatibility with existing, broken implementations. Therefore
    
remove the extra alias, to avoid the risk of encouraging incorrect
    
usage.
    

    Intentionally keeping the ff_hevc_dynamic_handler name for the
    
handler, to use "hevc" consistently as name for the codec instead
    
of "h265" within the library internals as long as there only is one
    
single variant in actual use.
    

    Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DBH] libavformat/rtpdec.c
    • [DBH] libavformat/rtpdec_formats.h
    • [DBH] libavformat/rtpdec_hevc.c

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