Android 編譯ffmpeg庫

下載ffmpeg源碼
git clone https://git.ffmpeg.org/ffmpeg.git 或者 git clone https://github.com/FFmpeg/FFmpeg.git。

下載NDK版本, 目前我使用的是NDK21, 下載NDK和查看NDK目錄文件的方法:
(1) 進入AndroidStudio查看, 勾選Show Package Details ,可以查看當前已經下載的NDK版本, 如果需要下載其他版本可以點擊下載. 存放目錄在自己配置的Android/Sdk目錄下面.
(2) 在Android開發者文檔可以下載到ndk源碼，ndk下載鏈接。 根據實際需求選擇對應ndk版本，建議下載ndk-r20b穩定版。(這個是github上建議下載)

創建編譯腳本build_ffmpeg.sh

#!/bin/bash make clean set -e archbit=64if [ $archbit -eq 64 ];then echo "build for 64bit" ARCH=aarch64 CPU=armv8-a API=21 PLATFORM=aarch64 ANDROID=android CFLAGS="" LDFLAGS=""else echo "build for 32bit" ARCH=arm CPU=armv7-a API=16 PLATFORM=armv7a ANDROID=androideabi CFLAGS="-mfloat-abi=softfp -march=$CPU" LDFLAGS="-Wl,--fix-cortex-a8" fiexport NDK=/home/xzx/Android/Sdk/ndk/21.0.6113669 #這里是自己的NDK路徑 export TOOLCHAIN=$NDK/toolchains/llvm/prebuilt/linux-x86_64/bin #注意這里是linux export SYSROOT=$NDK/toolchains/llvm/prebuilt/linux-x86_64/sysroot export CROSS_PREFIX=$TOOLCHAIN/$ARCH-linux-$ANDROID- export CC=$TOOLCHAIN/$PLATFORM-linux-$ANDROID$API-clang export CXX=$TOOLCHAIN/$PLATFORM-linux-$ANDROID$API-clang++ export PREFIX=../ffmpeg-android/$CPUfunction build_android {./configure \--prefix=$PREFIX \--cross-prefix=$CROSS_PREFIX \--target-os=android \ #注意這里是android--arch=$ARCH \--cpu=$CPU \--cc=$CC \--cxx=$CXX \--nm=$TOOLCHAIN/$ARCH-linux-$ANDROID-nm \--strip=$TOOLCHAIN/$ARCH-linux-$ANDROID-strip \--enable-cross-compile \--sysroot=$SYSROOT \--extra-cflags="$CFLAGS" \--extra-ldflags="$LDFLAGS" \--extra-ldexeflags=-pie \--enable-runtime-cpudetect \--disable-static \--enable-shared \--enable-logging \--disable-ffprobe \--enable-ffplay \--disable-ffmpeg \--enable-debug \--disable-doc \--enable-avfilter \--enable-decoders \#--enable-version3 \#--enable-rkmpp \$ADDITIONAL_CONFIGURE_FLAGmakemake install } build_android

修改文件的權限chmod 777 build_ffmpeg.sh
執行編譯腳本./build_ffmpeg.sh

編譯完成生成ffmpeg-android文件, 我編譯的arm64版本, 其他版本自己修改腳本編譯.

xzx@xzx-Lenovo:~/disk2/project/ffmpeg/ffmpeg-android$ ls armv8-a

生成的對應模塊的so庫, 還存在對應的頭文件.

xzx@xzx-Lenovo:~/disk2/project/ffmpeg/ffmpeg-android/armv8-a/lib$ ls libavcodec.so libavdevice.so libavfilter.so libavformat.so libavutil.so libswresample.so libswscale.so pkgconfig

選擇編譯不同版本的ffmpeg, 請使用git checkout release/4.2不同的分支進行卻換源碼.

xzx@xzx-Lenovo:~/disk2/project/ffmpeg/ffmpeg$ git branch -amasterrelease/4.0 * release/4.2remotes/origin/HEAD -> origin/masterremotes/origin/masterremotes/origin/oldabiremotes/origin/release/0.10remotes/origin/release/0.11remotes/origin/release/0.5remotes/origin/release/0.6remotes/origin/release/0.7remotes/origin/release/0.8remotes/origin/release/0.9remotes/origin/release/1.0remotes/origin/release/1.1remotes/origin/release/1.2remotes/origin/release/2.0remotes/origin/release/2.1remotes/origin/release/2.2remotes/origin/release/2.3remotes/origin/release/2.4remotes/origin/release/2.5remotes/origin/release/2.6remotes/origin/release/2.7remotes/origin/release/2.8remotes/origin/release/3.0remotes/origin/release/3.1remotes/origin/release/3.2remotes/origin/release/3.3remotes/origin/release/3.4remotes/origin/release/4.0remotes/origin/release/4.1remotes/origin/release/4.2remotes/origin/release/4.3remotes/origin/release/4.4

編譯出來的庫下載鏈接: https://download.csdn.net/download/nihenmeila/35382760

參考編譯鏈接:

FFmpeg官方文檔

查看FFmpeg編譯流程

查看FFmpeg常用命令行

https://github.com/xufuji456/FFmpegAndroid/blob/master/doc/FFmpeg_compile_shell.md

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