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• swscale : organize and better document flags

  10 octobre 2024, par Niklas Haas

  swscale : organize and better document flags
  Group them into an enum rather than random #defines, and document their
  
  behavior a bit more obviously.
  Of particular note, I discovered that SWS_DIRECT_BGR is not referenced
  
  anywhere else in the code base. As such, I have moved it to the deprecated
  
  section, alongside SWS_ERROR_DIFFUSION.
  Sponsored-by : Sovereign Tech Fund
  
  Signed-off-by : Niklas Haas <git@haasn.dev>
  

  • [DH] doc/APIchanges
  • [DH] libswscale/swscale.h
  • [DH] libswscale/version.h

• mfenc : Avoid including codecapi.h, fix building in UWP mode with clang

  25 mai 2020, par Martin Storsjö

  mfenc : Avoid including codecapi.h, fix building in UWP mode with clang
  Including codecapi.h and uuids.h in UWP mode doesn't define all defines
  
  properly, ending up with constructs that MSVC silently tolerates, but
  
  that clang errors out on, like this :
  
      DEFINE_GUIDEX(CODECAPI_AVEncCommonFormatConstraint) ;
  Just avoid including codecapi.h completely and hardcode the last few
  
  enum values we use from there. We already use local versions of most
  
  enums from there, due to older mingw-w64 headers being incomplete.
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DH] libavcodec/mf_utils.h
  • [DH] libavcodec/mfenc.c

• Build native-lib_arm64-v8a : error : no matching function for call to 'av_rescale_q_rnd'

  12 septembre 2020, par yejafot

  I'm trying to compile my native-lib.cpp, but I keep getting this error. The issue here is for the parameter

  


  pkt.pts = av_rescale_q_rnd(pkt.pts, in_stream->time_base, out_stream->time_base, (AVRounding)(AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX));
        pkt.dts = av_rescale_q_rnd(pkt.dts, in_stream->time_base, out_stream->time_base, (AVRounding)(AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX));
        pkt.duration = av_rescale_q(pkt.duration, in_stream->time_base, out_stream->time_base);


  


  the error which i got

  


  > Task :app:externalNativeBuildRelease
Build native-lib_armeabi-v7a
ninja: Entering directory `\app\.cxx\cmake\release\armeabi-v7a'
[1/2] Building CXX object CMakeFiles/native-lib.dir/native-lib.cpp.o
[2/2] Linking CXX shared library \app\build\intermediates\cmake\release\obj\armeabi-v7a\libnative-lib.so
Build native-lib_arm64-v8a
ninja: Entering directory `\app\.cxx\cmake\release\arm64-v8a'
[1/2] Building CXX object CMakeFiles/native-lib.dir/native-lib.cpp.o
FAILED: CMakeFiles/native-lib.dir/native-lib.cpp.o 
\AppData\Local\Android\Sdk\ndk\21.0.6113669\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=aarch64-none-linux-android23 --gcc-toolchain=/Local/Android/Sdk/ndk/21.0.6113669/toolchains/llvm/prebuilt/windows-x86_64 --sysroot=/Local/Android/Sdk/ndk/21.0.6113669/toolchains/llvm/prebuilt/windows-x86_64/sysroot  -Dnative_lib_EXPORTS -I/app/src/main/libs/arm64-v8a/include -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security  -frtti -fexceptions -O2 -DNDEBUG  -fPIC -MD -MT CMakeFiles/native-lib.dir/native-lib.cpp.o -MF CMakeFiles\native-lib.dir\native-lib.cpp.o.d -o CMakeFiles/native-lib.dir/native-lib.cpp.o -c /app/src/main/cpp/native-lib.cpp
/app/src/main/cpp/native-lib.cpp:716:19: error: no matching function for call to 'av_rescale_q_rnd'
        pkt.pts = av_rescale_q_rnd(pkt.pts, in_stream->time_base, out_stream->time_base, (enum AVRounding)(AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX));
                  ^~~~~~~~~~~~~~~~
/app/src/main/libs/arm64-v8a/include\libavutil/mathematics.h:160:9: note: candidate function not viable: no known conversion from 'AVRational *' to 'AVRational' for 2nd argument; dereference the argument with *
int64_t av_rescale_q_rnd(int64_t a, AVRational bq, AVRational cq,
        ^
/app/src/main/cpp/native-lib.cpp:717:19: error: no matching function for call to 'av_rescale_q_rnd'
        pkt.dts = av_rescale_q_rnd(pkt.dts, in_stream->time_base, out_stream->time_base, (enum AVRounding)(AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX));
                  ^~~~~~~~~~~~~~~~
/app/src/main/libs/arm64-v8a/include\libavutil/mathematics.h:160:9: note: candidate function not viable: no known conversion from 'AVRational *' to 'AVRational' for 2nd argument; dereference the argument with *
int64_t av_rescale_q_rnd(int64_t a, AVRational bq, AVRational cq,
        ^
/app/src/main/cpp/native-lib.cpp:718:24: error: no matching function for call to 'av_rescale_q'
        pkt.duration = av_rescale_q(pkt.duration, in_stream->time_base, out_stream->time_base);
                       ^~~~~~~~~~~~
/app/src/main/libs/arm64-v8a/include\libavutil/mathematics.h:151:9: note: candidate function not viable: no known conversion from 'AVRational *' to 'AVRational' for 2nd argument; dereference the argument with *
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const;
        ^
3 errors generated.
ninja: build stopped: subcommand failed.

> Task :app:externalNativeBuildRelease FAILED


  


  from above error i think it throws only for arm64-v8 itseems

  


  app\src\main\libs\arm64-v8a\include\libavutil\mathematics.h:151:9: note: candidate function not viable: no known conversion from 'AVRational *' to 'AVRational' for 2nd argument; dereference the argument with *


  


  

  


  As it is an ffmpeg example code block and i didnt change anything. Android Studio throws error only when i try to generate signed apk and i can run this in my Android 6 device without error.

  


  I tried replacing in_stream->time_base, out_stream->time_base into *in_stream->time_base, *out_stream->time_base it throws other type of error

  


  app\src\main\cpp\native-lib.cpp:716:45: error: indirection requires pointer operand ('AVRational' invalid)