|Number of watchers on Github||100|
|Number of open issues||10|
|Average time to close an issue||about 10 hours|
|Average time to merge a PR||about 14 hours|
|Open pull requests||3+|
|Closed pull requests||13+|
|Last commit||over 1 year ago|
|Repo Created||over 3 years ago|
|Repo Last Updated||over 1 year ago|
|Organization / Author||netflix|
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Photon is a Java implementation of the Interoperable Master Format (IMF) standard. IMF is a SMPTE standard whose core constraints are defined in the specification st2067-2:2013. Photon offers tools for parsing, interpreting and validating constituent files that make an Interoperable Master Package (IMP). These include AssetMap (st429-9:2014), PackingList (st429-8:2007), Composition Playlist (st2067-3:2013), and the essence containing IMF track file (st2067-5:2013) which follows the Material eXchange Format (MXF) format (st377-1:2011). Specifically, Photon parses and completely reads an MXF file containing a single audio or video essence as defined by the IMF Essence Component specification (st2067-5:2013) and serializes the metadata into the IMF Composition Playlist structure.
The goal of the Photon is to provide a simple standardized interface to completely validate an IMP.
Photon can be built using JDK-8. Support for earlier jdk versions has not been tested and/or verified.
Photon can be built very easily by using the included Gradle wrapper. Having downloaded the sources, simply invoke the following commands inside the folder containing the sources:
$ ./gradlew clean $ ./gradlew build
For Windows $ gradlew.bat clean $ gradlew.bat build
Binaries and dependency information for Maven, Ivy, Gradle and others can be found at http://search.maven.org.
Change history and version numbers are available at CHANGELOG.md.
Example for Maven:
<dependency> <groupId>com.netflix.photon</groupId> <artifactId>Photon</artifactId> <version>0.1.1</version> </dependency>
and for Ivy:
<dependency org="com.netflix.photon" name="Photon" rev="0.1.1" />
If you need to download all dependencies, you just have to run:
$ ./gradlew getDependencies
It will download all dependencies into ./build/libs directory, where Photon.*.jar is built. Multiple sample applications have been provided with this project (e.g., com.netflix.imflibrary.app.IMFTrackFileReader). Having obtained the dependencies, you can run an application as follows:
java -cp ./build/libs/*: <fully qualified class name> <zero or more arguments>
java -cp ./build/libs/*: com.netflix.imflibrary.st0429_9.AssetMap asset_map_file_path
java -cp ./build/libs/*: com.netflix.imflibrary.st0429_8.PackingList packing_list_file_path
java -cp ./build/libs/*: com.netflix.imflibrary.st2067_2.Composition composition_playlist_file_path
java -cp ./build/libs/*: com.netflix.imflibrary.app.IMPAnalyzer IMP_folder_path
For Windows please refer to the following examples
To download all dependencies, you just have to run:
$ gradlew.bat getDependencies
It will download all dependencies into build\libs directory, where Photon.*.jar is built. Multiple sample applications have been provided with this project (e.g., com.netflix.imflibrary.app.IMFTrackFileReader). Having obtained the dependencies, you can run an application as follows:
java -cp build\libs\*; <fully qualified class name> <zero or more arguments>
java -cp build\libs\*; com.netflix.imflibrary.st0429_9.AssetMap asset_map_file_path
java -cp build\libs\*; com.netflix.imflibrary.st0429_8.PackingList packing_list_file_path
java -cp build\libs\*; com.netflix.imflibrary.st2067_2.Composition composition_playlist_file_path
java -cp build\libs\*; com.netflix.imflibrary.app.IMPAnalyzer IMP_folder_path
Fix equivalent check for TrackFileResource
Additional optimizations in IMFCoreConstraintsChecker for a virtual track with large number of resources.