What Am I missing while compiling FFmpeg extention on Windows?

[REQUIRED] Searched documentation and issues

Hi, I know most of you work on Linux but I am hoping at least to have some clarification on what I could be missing or where would I be able to find the compiled binaries, if any. I have reviewed #3852 and #3127 about this. I really don’t think what @Crossady claimed was accurate because Powershell by default cannot understand your .sh batch script even if the host platform and NDK used is for Linux. I have actually setup and used WSL and while using PowerShell I get the log included below. That is after setting up the environment variables and executing the .sh script. I am using NDK 20b for linux-x86_64, I tried with the windows-x86_64, same results.

[REQUIRED] Question

Given those “./build_ffmpeg.sh: line XX: make: command not found”, my guess is that it is not compiling at all? or where should I expect the compiled files?

I’ve looked into: “extensions/ffmpeg/src/main/libs” and no binaries anywhere. Any help?

A full bug report captured from the device

`fatal: cannot change to 'ffmpeg': No such file or directory
Cloning into 'ffmpeg'...
remote: Enumerating objects: 585116, done.
remote: Counting objects: 100% (585116/585116), done.
remote: Compressing objects: 100% (125179/125179), done.
remote: Total 585116 (delta 469474), reused 571873 (delta 458732)
Receiving objects: 100% (585116/585116), 114.11 MiB | 2.49 MiB/s, done.
Resolving deltas: 100% (469474/469474), done.
Checking out files: 100% (7217/7217), done.
Checking out files: 100% (1045/1045), done.
Branch 'release/4.2' set up to track remote branch 'release/4.2' from 'origin'.
Switched to a new branch 'release/4.2'
install prefix            /usr/local
source path               .
C compiler                /mnt/e/_EXOPLAYER/android-ndk-r20b/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabi16-clang
C library                 bionic
host C compiler           gcc
host C library
ARCH                      arm (armv7-a)
big-endian                no
runtime cpu detection     yes
ARMv5TE enabled           yes
ARMv6 enabled             yes
ARMv6T2 enabled           yes
VFP enabled               yes
NEON enabled              yes
THUMB enabled             no
debug symbols             yes
strip symbols             yes
optimize for size         no
optimizations             yes
static                    no
shared                    yes
postprocessing support    no
network support           no
threading support         pthreads
safe bitstream reader     yes
texi2html enabled         no
perl enabled              yes
pod2man enabled           yes
makeinfo enabled          no
makeinfo supports HTML    no
External libraries:
zlib
External libraries providing hardware acceleration:
v4l2_m2m
Libraries:
avcodec                 avresample              avutil                  swresample
Programs:
Enabled decoders:
ac3                     eac3                    mlp                     opus                    vorbis
dca                     flac                    mp3                     truehd
Enabled encoders:
Enabled hwaccels:
Enabled parsers:
ac3                     mlp
Enabled demuxers:
Enabled muxers:
Enabled protocols:
Enabled filters:
Enabled bsfs:
null
Enabled indevs:
Enabled outdevs:
License: LGPL version 2.1 or later

WARNING: /mnt/e/_EXOPLAYER/android-ndk-r20b/toolchains/llvm/prebuilt/linux-x86_64/bin/armv7a-linux-androideabi16-pkg-config not found, library detection may fail.
WARNING: Building with deprecated library libavresample

./build_ffmpeg.sh: line 58: make: command not found
./build_ffmpeg.sh: line 59: make: command not found
./build_ffmpeg.sh: line 60: make: command not found
install prefix            /usr/local
source path               .
C compiler                /mnt/e/_EXOPLAYER/android-ndk-r20b/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android21-clang
C library                 bionic
host C compiler           gcc
host C library
ARCH                      aarch64 (armv8-a)
big-endian                no
runtime cpu detection     yes
NEON enabled              yes
VFP enabled               yes
debug symbols             yes
strip symbols             yes
optimize for size         no
optimizations             yes
static                    no
shared                    yes
postprocessing support    no
network support           no
threading support         pthreads
safe bitstream reader     yes
texi2html enabled         no
perl enabled              yes
pod2man enabled           yes
makeinfo enabled          no
makeinfo supports HTML    no
External libraries:
zlib
External libraries providing hardware acceleration:
v4l2_m2m
Libraries:
avcodec                 avresample              avutil                  swresample
Programs:
Enabled decoders:
ac3                     eac3                    mlp                     opus                    vorbis
dca                     flac                    mp3                     truehd
Enabled encoders:
Enabled hwaccels:
Enabled parsers:
ac3                     mlp
Enabled demuxers:
Enabled muxers:
Enabled protocols:
Enabled filters:
Enabled bsfs:
null
Enabled indevs:
Enabled outdevs:
License: LGPL version 2.1 or later
WARNING: /mnt/e/_EXOPLAYER/android-ndk-r20b/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android21-pkg-config not found, library detection may fail.
WARNING: Building with deprecated library libavresample
libavutil/avconfig.h is unchanged
libavfilter/filter_list.c is unchanged
libavcodec/codec_list.c is unchanged
libavcodec/parser_list.c is unchanged
libavcodec/bsf_list.c is unchanged
libavformat/demuxer_list.c is unchanged
libavformat/muxer_list.c is unchanged
libavdevice/indev_list.c is unchanged
libavdevice/outdev_list.c is unchanged
libavformat/protocol_list.c is unchanged
./build_ffmpeg.sh: line 70: make: command not found
./build_ffmpeg.sh: line 71: make: command not found
./build_ffmpeg.sh: line 72: make: command not found
install prefix            /usr/local
source path               .
C compiler                /mnt/e/_EXOPLAYER/android-ndk-r20b/toolchains/llvm/prebuilt/linux-x86_64/bin/i686-linux-android16-clang
C library                 bionic
host C compiler           gcc
host C library
ARCH                      c (i686)
big-endian                no
runtime cpu detection     yes
debug symbols             yes
strip symbols             yes
optimize for size         no
optimizations             yes
static                    no
shared                    yes
postprocessing support    no
network support           no
threading support         pthreads
safe bitstream reader     yes
texi2html enabled         no
perl enabled              yes
pod2man enabled           yes
makeinfo enabled          no
makeinfo supports HTML    no
External libraries:
zlib
External libraries providing hardware acceleration:
v4l2_m2m
Libraries:
avcodec                 avresample              avutil                  swresample
Programs:
Enabled decoders:
ac3                     eac3                    mlp                     opus                    vorbis
dca                     flac                    mp3                     truehd
Enabled encoders:
Enabled hwaccels:
Enabled parsers:
ac3                     mlp
Enabled demuxers:
Enabled muxers:
Enabled protocols:
Enabled filters:
Enabled bsfs:
null
Enabled indevs:
Enabled outdevs:
License: LGPL version 2.1 or later
WARNING: /mnt/e/_EXOPLAYER/android-ndk-r20b/toolchains/llvm/prebuilt/linux-x86_64/bin/i686-linux-android16-pkg-config not found, library detection may fail.
WARNING: Building with deprecated library libavresample
libavfilter/filter_list.c is unchanged
libavcodec/codec_list.c is unchanged
libavcodec/parser_list.c is unchanged
libavcodec/bsf_list.c is unchanged
libavformat/demuxer_list.c is unchanged
libavformat/muxer_list.c is unchanged
libavdevice/indev_list.c is unchanged
libavdevice/outdev_list.c is unchanged
libavformat/protocol_list.c is unchanged
./build_ffmpeg.sh: line 83: make: command not found
./build_ffmpeg.sh: line 84: make: command not found
./build_ffmpeg.sh: line 85: make: command not found`

[Tolriq]

Yes FFmepg have warnings 😃

You now either use a local exo build as per the FAQ: https://github.com/google/ExoPlayer/blob/release-v2/README.md or you can build an AAR of just the extension and use that in your builds (./gradlew assembleRelease)

[ojw28]

Closing this because there’s no sign of a contribution, and it’s not something we’re planning to do ourselves. It’s also possible that migrating the extension to CMake, which we intend to do at some point, will also largely solve any confusion around building on Windows.