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• FFMPEG Cannot Init CUDA

  7 novembre 2016, par Alan

  I am working to install ffmpeg with hardware GPU support on a Xenserver virtual server (Ubuntu 16.04). I am following the guide from : http://developer.download.nvidia.com/compute/redist/ffmpeg/1511-patch/FFMPEG-with-NVIDIA-Acceleration-on-Ubuntu_UG_v01.pdf

  While updating the directions for the newest versions of the SDK and versions for 16.04. I have everything built and all seems fine when doing version checks :

  ffmpeg version N-82277-ge2193b5 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.2) 20160609
  
    configuration: --prefix=/root/ffmpeg_build --pkg-config-flags=--static 
  
  --extra-cflags=-I/root/ffmpeg_build/include
  
  --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --enable-gpl --enable-libass --enable-libfdk-aac 
  
  --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx 
  
  --enable-libx264 --enable-libx265 --enable-libvidstab --enable-nonfree --enable-nvenc
  
  
  
  #nvcc --version
  
  nvcc: NVIDIA (R) Cuda compiler driver
  
  Copyright (c) 2005-2015 NVIDIA Corporation
  
  Built on Tue_Aug_11_14:27:32_CDT_2015
  
  Cuda compilation tools, release 7.5, V7.5.17

  When I try doing the test using the GPU I get this :

  #time ffmpeg -y -i 337.mp4 -vcodec h264_nvenc -b:v 5M -acodec copy OUTPUT.mp4
  
  
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '337.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf56.25.101
  
    Duration: 00:00:22.74, start: 0.000000, bitrate: 537 kb/s
  
      Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 720x480 [SAR 1:1 DAR 3:2], 434 kb/s, 29.97 fps, 29.97 tbr, 11988 tbn, 59.94 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(eng): Audio: mp3 (mp4a / 0x6134706D), 48000 Hz, stereo, s16p, 96 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  modprobe: ERROR: could not insert 'nvidia_367_uvm': No such device
  
  [h264_nvenc @ 0x3da6400] Cannot init CUDA
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (h264_nvenc))
  
    Stream #0:1 -> #0:1 (copy)
  
  Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  In particular I get an error [h264_nvenc @ 0x3da6400] Cannot init CUDA

  I can’t seem to find any info on this. I am not running any desktop GUI, strictly command line trying to accelerate video encoding with a Nvidia GTX 960.

• Including FFmpeg.framework Into My IOS App

  28 mars, par Alpi

  I'm trying to manually integrate ffmpegkit.framework into my Expo Bare Workflow iOS app (built with React Native + native modules via Xcode) because the ffmpegkit will be deprecated and the binaries will be deleted.

  


  So far

  


  

  • I've downloaded the latest LTS release of FFmpegkit from here.

  


  • I've created 3 files : FFmpegModule.m , FFmpegModule.swift and SoundBud-Bridging-Header.

  


  • Added the frameworks to my projectDir/ios manually, which shows in my XCode under projectDir/Frameworks

  


  • Added all the frameworks into "Frameworks, Libraries and Embedded Content" and make them "Embed and Sign"

  


  • As Framework Search Path in Project Settings, I've set it to "$(PROJECT_DIR)" and recursive

  


  • In "Build Phases" I've added all the frameworks under "Embed Frameworks",set the destination to "Frameworks" and checked "Code Sign on Copy" to all of them and unchecked "Copy Only When Installing"

  


  • Also under "Link Binary With Libraries" I've added all the frameworks and marked them "Required"

  


  


  Here are the errors I'm getting :

  


  

  • The framework is not recognized by Swift (No such module 'ffmpegkit')

  


  • A build cycle error : Cycle inside SoundBud ; building could produce unreliable results.
Target 'SoundBud' has copy command from '.../Frameworks/ffmpegkit.framework' ...

  


  


  Below you can see my swift file and the ffmpegkit module file :
Swift :

  


  import Foundation
import ffmpegkit
import React

@objc(FFmpegModule)
class FFmpegModule: NSObject, RCTBridgeModule {

static func moduleName() -> String {
return "FFmpegModule"
}

@objc
func runCommand(_ command: String, resolver resolve: @escaping RCTPromiseResolveBlock, 
rejecter reject: @escaping RCTPromiseRejectBlock) {
FFmpegKit.executeAsync(command) { session in
  let returnCode = session?.getReturnCode()
  resolve(returnCode?.getValue())
}
}

@objc
static func requiresMainQueueSetup() -> Bool {
return false
}
}


  


  and the module :

  


  framework module ffmpegkit {

header "AbstractSession.h"
header "ArchDetect.h"
header "AtomicLong.h"
header "Chapter.h"
header "FFmpegKit.h"
header "FFmpegKitConfig.h"
header "FFmpegSession.h"
header "FFmpegSessionCompleteCallback.h"
header "FFprobeKit.h"
header "FFprobeSession.h"
header "FFprobeSessionCompleteCallback.h"
header "Level.h"
header "Log.h"
header "LogCallback.h"
header "LogRedirectionStrategy.h"
header "MediaInformation.h"
header "MediaInformationJsonParser.h"
header "MediaInformationSession.h"
header "MediaInformationSessionCompleteCallback.h"
header "Packages.h"
header "ReturnCode.h"
header "Session.h"
header "SessionState.h"
header "Statistics.h"
header "StatisticsCallback.h"
header "StreamInformation.h"
header "ffmpegkit_exception.h"

export *
}


  


  I can provide you with more info if you need it. I've been trying non stop for 7 days and it's driving me crazy. I would appreciate any help greatly

  


• I can't seem to install opencv2.4.13 for Python3.4 on Mac El Capitan

  1er juin 2016, par ThatProgrammerDude

  This has been driving me nuts. I have been working on this non stop for a week. I have looked at many tutorials online they did not help.

  I have tried so much I don’t even remember what I tried. I can say the last thing I tried though.. which is this video https://www.youtube.com/watch?v=U49CVY8yOxw.

  So I download opencv2.4.13, create the build folder, open cmake, configure, generate and then go to terminal and type in make.

  I get this :

  Richie's Macbook Air:build Richie$ make
  
  [  2%] Built target zlib
  
  [  6%] Built target libtiff
  
  [ 10%] Built target libjpeg
  
  [ 14%] Built target libjasper
  
  [ 16%] Built target libpng
  
  [ 23%] Built target IlmImf
  
  [ 26%] Built target opencv_core
  
  [ 31%] Built target opencv_imgproc
  
  [ 32%] Built target opencv_video
  
  [ 32%] Built target opencv_flann
  
  [ 32%] Building CXX object modules/highgui/CMakeFiles/opencv_highgui.dir/src/cap_ffmpeg.cpp.o
  
  In file included from /Users/Richie/Downloads/opencv-2.4.13/modules/highgui/src/cap_ffmpeg.cpp:45:
  
  /Users/Richie/Downloads/opencv-2.4.13/modules/highgui/src/cap_ffmpeg_impl.hpp:71:6: error: 
  
        "libswscale is necessary to build the newer OpenCV ffmpeg wrapper"
  
      #error "libswscale is necessary to build the newer OpenCV ffmpeg wrapper"
  
       ^
  
  /Users/Richie/Downloads/opencv-2.4.13/modules/highgui/src/cap_ffmpeg_impl.hpp:481:9: error: 
  
        use of undeclared identifier 'sws_freeContext'
  
          sws_freeContext(img_convert_ctx);
  
          ^
  
  /Users/Richie/Downloads/opencv-2.4.13/modules/highgui/src/cap_ffmpeg_impl.hpp:965:17: error: 
  
        use of undeclared identifier 'SWS_BICUBIC'
  
                  SWS_BICUBIC,
  
                  ^
  
  /Users/Richie/Downloads/opencv-2.4.13/modules/highgui/src/cap_ffmpeg_impl.hpp:998:5: error: 
  
        use of undeclared identifier 'sws_scale'
  
      sws_scale(
  
      ^
  
  /Users/Richie/Downloads/opencv-2.4.13/modules/highgui/src/cap_ffmpeg_impl.hpp:1639:46: error: 
  
        use of undeclared identifier 'SWS_BICUBIC'
  
                                               SWS_BICUBIC,
  
                                               ^
  
  /Users/Richie/Downloads/opencv-2.4.13/modules/highgui/src/cap_ffmpeg_impl.hpp:1645:14: error: 
  
        use of undeclared identifier 'sws_scale'
  
          if ( sws_scale(img_convert_ctx, input_picture->data,
  
               ^
  
  /Users/Richie/Downloads/opencv-2.4.13/modules/highgui/src/cap_ffmpeg_impl.hpp:1693:9: error: 
  
        use of undeclared identifier 'sws_freeContext'
  
          sws_freeContext(img_convert_ctx);
  
          ^
  
  /Users/Richie/Downloads/opencv-2.4.13/modules/highgui/src/cap_ffmpeg_impl.hpp:2290:9: warning: 
  
        ignoring return value of function declared with warn_unused_result
  
        attribute [-Wunused-result]
  
          avformat_write_header(oc_, NULL);
  
          ^~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~
  
  1 warning and 7 errors generated.
  
  make[2]: *** [modules/highgui/CMakeFiles/opencv_highgui.dir/src/cap_ffmpeg.cpp.o] Error 1
  
  make[1]: *** [modules/highgui/CMakeFiles/opencv_highgui.dir/all] Error 2
  
  make: *** [all] Error 2
  
  Richie's Macbook Air:build Richie$ 

  From what I can see, it says

  "libswscale is necessary to build the newer OpenCV ffmpeg wrapper"

  I have tried googling though to no avail, does anyone know ?

  EDIT : I do have ffmpeg installed... (brew).