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# FFmpegKit for Android
### 1. Features
- Supports `API Level 24+` on Main releases and `API Level 16+` on LTS releases
- Includes `arm-v7a`, `arm-v7a-neon`, `arm64-v8a`, `x86` and `x86_64` architectures
- Can handle Storage Access Framework (SAF) Uris
- Camera access on [supported devices](https://developer.android.com/ndk/guides/stable_apis#camera)
- Builds shared native libraries (.so)
- Creates Android archive with .aar extension
### 2. BUILDING (Is after `Using with Python`)
### USE PREBUILT PACKAGE FROM RELEASES SECTION
### 3. Using With Python
##### 0) Add SmartExpetion Common and SmartExeption java from (https://github.com/tanersener/smart-exception/releases/tag/v0.2.1)
##### 1) and the aar from Releases tab or the one generated by you to your projects folder.
##### 2) In Buildozer spec file add jnius to requirements and the aar file. (Alongside what you already have)
```
requirements = jnius
android.add_aars = ffmpeg-kit-release.aar
android.add_jars = smart-exception-common-0.2.1.jar, smart-exception-java-0.2.1.jar
```
##### 3) Using Pyjnius, declare the variables in Python (https://pyjnius.readthedocs.io/en/stable/)
```
#IMPORTING jnius
from jnius import autoclass
from jnius import *
#Declaring Variable so it can be used
FFMPEG = autoclass('com.sahib.pyff.ffpy')
```
BOTH (FFMPEG and FFPROBE) RETURN OUTPUT OF THE COMMAND
##### 4) To Use FFMPEG
```
#EXECUTED FFMPEG COMMAND, COMMAND IS STRING
ffmpegCommand = FFMPEG.Run("COMMAND")
#PRINTS RETURN (OUTPUT OF THE COMMAND)
print(ffmpegCommand)
```
##### 5) To use FFProbe
```
#EXECUTED FFProbe COMMAND, COMMAND IS STRING
probeCommand = FFMPEG.RunProbe("Command")
#PRINTS RETURN (OUTPUT OF THE COMMAND)
print(probeCommand)
```
NOTE - FILTER_COMPLEX can not be used. (IDK why, if you have solution tell me please)
#### EXAMPLES
##### 1) FFMPEG
```
from jnius import autoclass
from jnius import *
#Declaring Variable so it can be used
FFMPEG = autoclass('com.sahib.pyff.ffpy')
#THIS COVERTS VIDEO INTO an audio file (MP4 TO WAV)
d = FFMPEG.Run(str("-i video.mp4 -ab 160k -ac 2 -ar 44100 -vn TEMP/audio.wav"))
#THIS PRINTS THE OUTPUT (I don't think you even need output in ffmpeg unless for trouble shooting)
print(d)
```
##### 2) FFProbe
```
from jnius import autoclass
from jnius import *
#Declaring Variable so it can be used
FFMPEG = autoclass('com.sahib.pyff.ffpy')
#Gets Framerate of video
frameRate = FFMPEG.RunProbe("-v error -select_streams v -of default=noprint_wrappers=1:nokey=1 -show_entries stream=r_frame_rate video.mp4")
#This command outputs 30/1 at 30 frames
frameRate = frameRate.split("/")[0]
#this makes it 30 instead of 30/1
frameRate = int(frameRate)
print(frameRate)
#Converts framerate to integer and prints it
```
### 2. Building (Skip this part and use prebuilt from RELEASES section)
Run `android.sh` at project root directory to build `ffmpeg-kit` and `ffmpeg` shared libraries.
Please note that `FFmpegKit` project repository includes the source code of `FFmpegKit` only. `android.sh` needs
network connectivity and internet access to `github.com` in order to download the source code of `FFmpeg` and
external libraries enabled.
#### 2.1 Prerequisites
`android.sh` requires the following tools and packages.
##### 2.1.1 Android Tools
- Android SDK Build Tools
- Android NDK r22b or later with LLDB and CMake (See [#292](https://github.com/arthenica/ffmpeg-kit/issues/292) if you want to use NDK r23b)
##### 2.1.2 Packages
Use your package manager (apt, yum, dnf, brew, etc.) to install the following packages.
```
autoconf automake libtool pkg-config curl cmake gcc gperf texinfo yasm nasm bison autogen git wget autopoint meson ninja
```
##### 2.1.3 Environment Variables
Set `ANDROID_SDK_ROOT` and `ANDROID_NDK_ROOT` environment variables before running `android.sh`.
```
export ANDROID_SDK_ROOT=<Android SDK Path>
export ANDROID_NDK_ROOT=<Android NDK Path>
```
#### 2.2 Options
Use `--enable-<library name>` flag to support additional external or system libraries and
`--disable-<architecture name>` to disable architectures you don't want to build.
```
./android.sh --enable-fontconfig --disable-arm-v7a-neon
```
Run `--help` to see all available build options.
#### 2.3 LTS Binaries
Use `--lts` option to build lts binaries for each architecture.
#### 2.4 Build Output
All libraries created by `android.sh` can be found under the `prebuilt` directory.
- `Android` archive (.aar file) for `Main` builds is located under the `bundle-android-aar` folder.
- LTS is not supported sorry. (For Python)
# END OF DOCUMENTATION FOR PYTHON
# With Java/ Orignal ffmpegkit's documentation (IGNORED BY ME)
#### 3.1 Android API
1. Declare `mavenCentral` repository and add `FFmpegKit` dependency to your `build.gradle` in
`ffmpeg-kit-<package name>` pattern. Use one of the `FFmpegKit` package names given in the
project [README](https://github.com/arthenica/ffmpeg-kit).
```yaml
repositories {
mavenCentral()
}
dependencies {
implementation 'com.arthenica:ffmpeg-kit-full:5.1'
}
```
2. Execute synchronous `FFmpeg` commands.
```java
import com.arthenica.ffmpegkit.FFmpegKit;
FFmpegSession session = FFmpegKit.execute("-i file1.mp4 -c:v mpeg4 file2.mp4");
if (ReturnCode.isSuccess(session.getReturnCode())) {
// SUCCESS
} else if (ReturnCode.isCancel(session.getReturnCode())) {
// CANCEL
} else {
// FAILURE
Log.d(TAG, String.format("Command failed with state %s and rc %s.%s", session.getState(), session.getReturnCode(), session.getFailStackTrace()));
}
```
3. Each `execute` call (sync or async) creates a new session. Access every detail about your execution from the
session created.
```java
FFmpegSession session = FFmpegKit.execute("-i file1.mp4 -c:v mpeg4 file2.mp4");
// Unique session id created for this execution
long sessionId = session.getSessionId();
// Command arguments as a single string
String command = session.getCommand();
// Command arguments
String[] arguments = session.getArguments();
// State of the execution. Shows whether it is still running or completed
SessionState state = session.getState();
// Return code for completed sessions. Will be null if session is still running or ends with a failure
ReturnCode returnCode = session.getReturnCode();
Date startTime = session.getStartTime();
Date endTime = session.getEndTime();
long duration = session.getDuration();
// Console output generated for this execution
String output = session.getOutput();
// The stack trace if FFmpegKit fails to run a command
String failStackTrace = session.getFailStackTrace();
// The list of logs generated for this execution
List<com.arthenica.ffmpegkit.Log> logs = session.getLogs();
// The list of statistics generated for this execution
List<Statistics> statistics = session.getStatistics();
```
4. Execute asynchronous `FFmpeg` commands by providing session specific `execute`/`log`/`session` callbacks.
```java
FFmpegKit.executeAsync("-i file1.mp4 -c:v mpeg4 file2.mp4", new FFmpegSessionCompleteCallback() {
@Override
public void apply(FFmpegSession session) {
SessionState state = session.getState();
ReturnCode returnCode = session.getReturnCode();
// CALLED WHEN SESSION IS EXECUTED
Log.d(TAG, String.format("FFmpeg process exited with state %s and rc %s.%s", state, returnCode, session.getFailStackTrace()));
}
}, new LogCallback() {
@Override
public void apply(com.arthenica.ffmpegkit.Log log) {
// CALLED WHEN SESSION PRINTS LOGS
}
}, new StatisticsCallback() {
@Override
public void apply(Statistics statistics) {
// CALLED WHEN SESSION GENERATES STATISTICS
}
});
```
5. Execute `FFprobe` commands.
- Synchronous
```java
FFprobeSession session = FFprobeKit.execute(ffprobeCommand);
if (!ReturnCode.isSuccess(session.getReturnCode())) {
Log.d(TAG, "Command failed. Please check output for the details.");
}
```
- Asynchronous
```java
FFprobeKit.executeAsync(ffprobeCommand, new FFprobeSessionCompleteCallback() {
@Override
public void apply(FFprobeSession session) {
CALLED WHEN SESSION IS EXECUTED
}
});
```
6. Get media information for a file.
```java
MediaInformationSession mediaInformation = FFprobeKit.getMediaInformation("<file path or uri>");
mediaInformation.getMediaInformation();
```
7. Stop ongoing `FFmpeg` operations.
- Stop all executions
```java
FFmpegKit.cancel();
```
- Stop a specific session
```java
FFmpegKit.cancel(sessionId);
```
8. Convert Storage Access Framework (SAF) Uris into paths that can be read or written by `FFmpegKit`.
- Reading a file:
```java
Uri safUri = intent.getData();
String inputVideoPath = FFmpegKitConfig.getSafParameterForRead(requireContext(), safUri);
FFmpegKit.execute("-i " + inputVideoPath + " -c:v mpeg4 file2.mp4");
```
- Writing to a file:
```java
Uri safUri = intent.getData();
String outputVideoPath = FFmpegKitConfig.getSafParameterForWrite(requireContext(), safUri);
FFmpegKit.execute("-i file1.mp4 -c:v mpeg4 " + outputVideoPath);
```
- Writing to a file in a custom mode.
```java
Uri safUri = intent.getData();
String path = FFmpegKitConfig.getSafParameter(requireContext(), safUri, "rw");
FFmpegKit.execute("-i file1.mp4 -c:v mpeg4 " + path);
```
9. Get previous `FFmpeg` and `FFprobe` sessions from session history.
```java
List<Session> sessions = FFmpegKitConfig.getSessions();
for (int i = 0; i < sessions.size(); i++) {
Session session = sessions.get(i);
Log.d(TAG, String.format("Session %d = id:%d, startTime:%s, duration:%s, state:%s, returnCode:%s.",
i,
session.getSessionId(),
session.getStartTime(),
session.getDuration(),
session.getState(),
session.getReturnCode()));
}
```
10. Enable global callbacks.
- Session type specific Complete Callbacks, called when an async session has been completed
```java
FFmpegKitConfig.enableFFmpegSessionCompleteCallback(new FFmpegSessionCompleteCallback() {
@Override
public void apply(FFmpegSession session) {
}
});
FFmpegKitConfig.enableFFprobeSessionCompleteCallback(new FFprobeSessionCompleteCallback() {
@Override
public void apply(FFprobeSession session) {
}
});
FFmpegKitConfig.enableMediaInformationSessionCompleteCallback(new MediaInformationSessionCompleteCallback() {
@Override
public void apply(MediaInformationSession session) {
}
});
```
- Log Callback, called when a session generates logs
```java
FFmpegKitConfig.enableLogCallback(new LogCallback() {
@Override
public void apply(final com.arthenica.ffmpegkit.Log log) {
...
}
});
```
- Statistics Callback, called when a session generates statistics
```java
FFmpegKitConfig.enableStatisticsCallback(new StatisticsCallback() {
@Override
public void apply(final Statistics newStatistics) {
...
}
});
```
11. Ignore the handling of a signal. Required by `Mono` and frameworks that use `Mono`, e.g. `Unity` and `Xamarin`.
```java
FFmpegKitConfig.ignoreSignal(Signal.SIGXCPU);
```
12. Register system fonts and custom font directories.
```java
FFmpegKitConfig.setFontDirectoryList(context, Arrays.asList("/system/fonts", "<folder with fonts>"), Collections.EMPTY_MAP);
```
### 4. Test Application
You can see how `FFmpegKit` is used inside an application by running `Android` test applications developed under the
[FFmpegKit Test](https://github.com/arthenica/ffmpeg-kit-test) project.
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