Hope i idid not confuse you more after all this. enable-encoder=mp2 -enable-decoder=mp2 (For Audio support) enable-encoder=mpeg4 -enable-decoder=mpeg4(For video support) PheProgrammatically build.sh should contain the following code: -enable-muxer=avi -enable-demuxer=avi (Generic for both audio/video. Mpeg4 Encoder, mpeg4 decoder, mp2 encoder, mp2 decoder, avi muxer, avi demuxer. So if you want to use avi format, you need to enable Video components + Audio components.Įx, for avi, you need to enable the following. Muxer/demuxer is used to combine/separate the frames from a file used while encoding/decoding. AVI is not a codec, it is a container which uses Video codec of Mpeg4 and Audio codec of mp2. => Audio = encoder + decoder + Muxer + Demuxer(mp2 + mp2 + avi + avi - Example for avi container)Ĭodec(name is deriverd from a combination of en*co*der/*dec*oder) is just a part of format which defines the algorithms used to encode/decode a frame. => Video = encoder + decoder + Muxer + Demuxer(Mpeg4 + Mpeg4 + avi +avi - Example for avi container) When we say a video file, ex : avi, it is combination of both audio and video It took a lot of time for me to realize this.
#Ffmpeg build alsa code#
Else the corresponding code will not be included in the libraries. You can use either of them.Įxtra tip i would like to offer is that when you are building the ffmpeg code, inside build.sh you need to enable the muxers/demuxers/encoders/decoders of the formats you want to use. You can see two projects named P and P86. Here is a link to the project from or run the command " git clone " in a terminal. In that project you have the whole setup ready which you can use to continue your investigation. Currently it is having bugs but developers are working continuously. This would be your first step.Ģ) Dolphin player is a open source project for Android.
You will get an idea as to which API's inside ffmpeg you should call.
Here, you can see the code where encoding/decoding is done. But i can guide you in following ways.ġ) Inside the ffmpeg directory of source code, you have output_example.c or api_example.c.
#Ffmpeg build alsa how to#
Now to answer the question of how to use this library, i would say that it is not so simple to write it here. It supports different formats of codecs and containers. ffmpeg is an effort in improving it day by day. The best documentation can be found in the headers.įor various reasons, Multimedia was and is never easy in terms of achieving the task without compromising on efficiency. Regarding using ffmpeg for playback, there are many examples (the ffmpeg binary itself is a good example), here's a basic tutorial. There's enough documentation on JNI out there, you should be fine. Use the ffmpeg-wrapping dynamic library from your java sources. The NDK allows you to easily link against the static libraries you've generated in step 1, just add a line similar to this to Android.mk: LOCAL_STATIC_LIBRARIES := libavcodec libavformat libavutil libc libz Basically you'll need to write some C/C++ code to export the functionality you need out of ffmpeg into a library java can interact with through JNI. There's a lot of documentation out there on how to work with the NDK.
#Ffmpeg build alsa android#
You'll need to extract bionic(libc) and zlib(libz) from the Android build as well, as ffmpeg libraries depend on them.Ĭreate a dynamic library wrapping ffmpeg functionality using the Android NDK. Simply place the sources under /external and make away. This was achieved by building olvaffe's ffmpeg android port ( libffmpeg) using the Android Build System.
Koji-rpmfusion wait-repo f27-free-build -build=ffmpeg-3.3.5-2.fc27Īlso others deps on binaries programs that we might be consider Koji-rpmfusion tag-build f27-free-override ffmpeg-3.3.5-2.fc27 Koji-rpmfusion wait-repo f27-free-build -build=27Īlso you may / should build ffmpeg first and add it to buildroot before starting build others packages that also depend on ffmpeg On a branch we need request a buildroot override with for example: koji-rpmfusion tag-build f27-free-override 27 build libquicktime (vlc, mjpegtools and mlt need it)ĭnf -disablerepo='*' -enablerepo=rpmfusion-$||' | sort | uniq | grep -v x265.build x264 without bootstrap (depends on gpac and ffmpeg ).Mass rebuild when bumping both so versions of x264 and ffmpeg also others deps on binaries programs that we might be consider.some other deps that also should be considered.Mass rebuild when bumping both so versions of x264 and ffmpeg.
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