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• vp9_parse : fix parsing of pskip and profile 2/3.

  4 septembre 2015, par Ronald S. Bultje

  vp9_parse : fix parsing of pskip and profile 2/3.
  The fate results change because we now correctly timestamp the pskip
  
  frames, which means the results are now identical to -vsync 0.
  

  • [DH] libavcodec/vp9_parser.c
  • [DH] tests/ref/fate/vp9-10-show-existing-frame
  • [DH] tests/ref/fate/vp9-10-show-existing-frame2
  • [DH] tests/ref/fate/vp9-16-intra-only

• Clion is configured with FFMPEG under MAC. Missing LC_ID_DYLIB load command file

  1er juin 2022, par QingGisHan

  cmake_minimum_required(VERSION 3.21)
project(DemoExample)

set(CMAKE_CXX_STANDARD 14)

include_directories(/Users/windy/devlop/ffmpeg/mac_ffmpeg_lib/include)
link_directories(/Users/windy/devlop/ffmpeg/mac_ffmpeg_lib/lib)

add_executable(DemoExample main.cpp)


target_link_libraries(
        DemoExample
        swscale swresample avcodec avutil avdevice avfilter avformat
)


  


  ====================[ Build | DemoExample | Debug ]=============================
/Applications/CLion.app/Contents/bin/cmake/mac/bin/cmake --build /Users/windy/devlop/code/CLionProjects/DemoExample/cmake-build-debug --target DemoExample
[1/1] Linking CXX executable DemoExample
FAILED: DemoExample 
: && /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ -g -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk -mmacosx-version-min=10.15 -Wl,-search_paths_first -Wl,-headerpad_max_install_names  CMakeFiles/DemoExample.dir/main.cpp.o -o DemoExample -L/Users/windy/devlop/ffmpeg/mac_ffmpeg_lib/lib -Wl,-rpath,/Users/windy/devlop/ffmpeg/mac_ffmpeg_lib/lib  -lswscale  -lswresample  -lavcodec  -lavutil  -lavdevice  -lavfilter  -lavformat && :
ld: dylib /Users/windy/devlop/ffmpeg/mac_ffmpeg_lib/lib/libswscale.dylib missing LC_ID_DYLIB load command file '/Users/windy/devlop/ffmpeg/mac_ffmpeg_lib/lib/libswscale.dylib' for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.


  


• Concatenate mp4 files in Android using halfninja ffmpeg

  21 février 2015, par Budius

  I’ve manage to compile halfninja ffmpeg scripts for Android NDK using NDK version r5c. (Unfortunately any attempt to compile with earlier NDK generated some error), also I’m not very knowledgeable on the whole NDK process, so it’s a bit hit-n-miss for me.

  His scripts are compiling ffmpeg version N-30996-gf925b24 (the specific commit he did the scripts for)

  Moving forward to my actual app.
  I manage to trim videos without problems, now I need to join/concatenate them but any attemp at using any and several combinations of the commands found on those 3 links (link1, link2, link3) generate errors such as cat is not valid, > is undefinined, unknown option filter_complex or trying to override some of the input files.

  Does anyone know if it’s possible and (how to do it), to join/concatenate mp4 videos (all same codec, size, quality, etc) using half-ninja compile of ffmpeg on Android, or how to compile/get a ffmpeg for Android using latest source codes ?

  I’ve also gave a quick try on the mp4Parser without much success.

  ultimately I was trying to get this pseudo-method to work :

  public static File concatenate(String[] inputPaths, String outputPath){
  
  
  
      // ... do stuff do generate ffmpeg commands....
  
      VideoKit v = new VideoKit();
  
      v.run(cmds);
  
  
  
      File f = new File(outputPath);
  
      return f;
  
  }