ffmpeg: add version 5.0

[toge]

Specify library name and version: ffmpeg/5.0

retry.

---

• I've read the guidelines for contributing.
• I've followed the PEP8 style guides for Python code in the recipes.
• I've used the latest Conan client version.
• I've tried at least one configuration locally with the
  conan-center hook activated.

[ghost]

I detected other pull requests that are modifying ffmpeg/all recipe:

• FFMPEG : Enable nonfree if SSL and GPL are enable #8973

This message is automatically generated by https://github.com/ericLemanissier/conan-center-conflicting-prs so don't hesitate to report issues/improvements there.

[SSE4]

see #9467

[SpaceIm]

#9467 has been merged, it may fix issue in this PR.

[conan-center-bot]

All green in build 4 (ed69ccd2dc7f8681e24688a2e66638aff6771082):

• ffmpeg/5.0@:
  All packages built successfully! (All logs)

• ffmpeg/4.4@:
  All packages built successfully! (All logs)

• ffmpeg/4.3.2@:
  All packages built successfully! (All logs)

• ffmpeg/4.2.1@:
  All packages built successfully! (All logs)

[SpaceIm]

test package of Visual Studio 15 / MD / static / Release

  Checking Build System
  Building Custom Rule C:/J/w/prod/BuildSingleReference@3/conan-center-index/recipes/ffmpeg/all/test_package/CMakeLists.txt
  test_package.c
  mp3lame.lib(lame.obj) : MSIL .netmodule or module compiled with /GL found; restarting link with /LTCG; add /LTCG to the link command line to improve linker performance
     Creating library C:/J/w/prod/BuildSingleReference@3/conan-center-index/recipes/ffmpeg/all/test_package/build/6c49314f013b72acaebaa2d01bb80265da42d5b1/lib/test_package.lib and object C:/J/w/prod/BuildSingleReference@3/conan-center-index/recipes/ffmpeg/all/test_package/build/6c49314f013b72acaebaa2d01bb80265da42d5b1/lib/test_package.exp
LINK : warning LNK4098: defaultlib 'LIBCMT' conflicts with use of other libs; use /NODEFAULTLIB:library [C:\J\w\prod\BuildSingleReference@3\conan-center-index\recipes\ffmpeg\all\test_package\build\6c49314f013b72acaebaa2d01bb80265da42d5b1\test_package.vcxproj]
  Generating code
  Finished generating code
  test_package.vcxproj -> C:\J\w\prod\BuildSingleReference@3\conan-center-index\recipes\ffmpeg\all\test_package\build\6c49314f013b72acaebaa2d01bb80265da42d5b1\bin\test_package.exe
  Building Custom Rule C:/J/w/prod/BuildSingleReference@3/conan-center-index/recipes/ffmpeg/all/test_package/CMakeLists.txt

• libmp3lame is compiled with LTO by default, this recipe should be fixed.
• There are still runtime inconsistencies when vc runtime in profile is MD or MDd, either in ffmpeg itself or in few dependencies:
  • libx264 ([package] libx264/20191217: wrong C runtime library for Visual Studio #5285): log of msvc MD static in the last PR: https://c3i.jfrog.io/c3i/misc/logs/pr/9466/3-configs/windows-visual_studio/libx264/20190605//5c08a9d92b2c83921900609070cb884efd91c783-test.txt

[SpaceIm]

#9740 & #9741 should fix these inconsistencies