参考：
https://github.com/PyAV-Org/PyAV/issues/238
https://pyav.org/docs/6.1.2/installation.html#mac-os-x
=====================
报错信息：
C:\Users\liuxue>pip install av
Collecting av
Using cached av-0.3.3.tar.gz
Installing collected packages: av
Running setup.py install for av ... error
Complete output from command d:\python27\python.exe -u -c "import setuptools, tokenize;__file__='c:\\users\\liuxue\\appdata\\local\\temp\\pip-build-cq6uln\\av\\setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record c:\users\liuxue\appdata\local\temp\pip-8nuwew-record\install-record.txt --single-version-externally-managed --compile:
running install
running build
running build_py
creating build
creating build\lib.win-amd64-2.7
creating build\lib.win-amd64-2.7\av
copying av\__init__.py -> build\lib.win-amd64-2.7\av
copying av\__main__.py -> build\lib.win-amd64-2.7\av
creating build\lib.win-amd64-2.7\av\audio
copying av\audio\__init__.py -> build\lib.win-amd64-2.7\av\audio
creating build\lib.win-amd64-2.7\av\container
copying av\container\__init__.py -> build\lib.win-amd64-2.7\av\container
creating build\lib.win-amd64-2.7\av\filter
copying av\filter\__init__.py -> build\lib.win-amd64-2.7\av\filter
creating build\lib.win-amd64-2.7\av\subtitles
copying av\subtitles\__init__.py -> build\lib.win-amd64-2.7\av\subtitles
creating build\lib.win-amd64-2.7\av\video
copying av\video\__init__.py -> build\lib.win-amd64-2.7\av\video
running build_ext
running reflect
running config
looking for avformat_open_input... missing
looking for pyav_function_should_not_exist... missing
looking for av_calloc... missing
looking for av_frame_get_best_effort_timestamp... missing
looking for avformat_alloc_output_context2... missing
looking for avformat_close_input... missing
looking for AVStream.index... missing
looking for PyAV.struct_should_not_exist... missing
looking for AVFrame.mb_type... missing
We didn't find `avformat_open_input` in the libraries.
We look for it only as a sanity check to make sure the build
process is working as expected. It is not, so we must abort.
Please open a ticket at https://github.com/mikeboers/PyAV/issues
with the folowing information:
PyAV: 0.3.3
Python: 2.7.13 (v2.7.13:a06454b1afa1, Dec 17 2016, 20:53:40) [MSC v.1500 64 bit (AMD64)]
platform: Windows-10-10.0.15063
extension_extra:
libraries: ['avformat', 'avcodec', 'avdevice', 'avutil', 'avfilter', 'swscale', 'swresample']
extra_link_args: ['/OPT:NOREF']
library_dirs: ['d:\\python27\\libs', 'd:\\python27\\PCbuild\\amd64', 'd:\\python27\\PC\\VS9.0\\amd64']
include_dirs: ['include', 'd:\\python27\\include', 'd:\\python27\\PC']
config_macros:
PYAV_VERSION=0.3.3
PYAV_VERSION_STR="0.3.3"
PYAV_COMMIT_STR="unknown-commit"
inline=__inline
PYAV_HAVE_LIBSWRESAMPLE=1
----------------------------------------
Command "d:\python27\python.exe -u -c "import setuptools, tokenize;__file__='c:\\users\\liuxue\\appdata\\local\\temp\\pip-build-cq6uln\\av\\setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record c:\users\liuxue\appdata\local\temp\pip-8nuwew-record\install-record.txt --single-version-externally-managed --compile" failed with error code 1 in c:\users\liuxue\appdata\local\temp\pip-build-cq6uln\av\
解决方法：
# General dependencies
sudo apt-get install -y python-dev pkg-config
# Library components
sudo apt-get install -y \
libavformat-dev libavcodec-dev libavdevice-dev \
libavutil-dev libswscale-dev libswresample-dev libavfilter-dev
-----------------------------
查询Google：
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标签：__,amd64,win,avfilter,avformat,报错,build,av,2.7 From： https://www.cnblogs.com/devilmaycry812839668/p/17871308.html