VideoDecodingWrapper

Artifact: androidx.media3:media3-test-utils

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Kotlin |Java

@UnstableApi
public final class VideoDecodingWrapper implements AutoCloseable

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A wrapper for decoding a video using MediaCodec.

This test utility class prefers using a software decoder. Depending on video resolution and device, some hardware decoders fail to write frames in YUV_420_888 to for use in CPU test utility functions.

Summary

Public constructors
VideoDecodingWrapper(     Context context,     String filePath,     int comparisonInterval,     int maxImagesAllowed ) Creates a new instance.

Public methods
void	close()
@Nullable Image	runUntilComparisonFrameOrEnded() Returns the next decoded comparison frame, or null if the stream has ended.

Public constructors

VideoDecodingWrapper

public VideoDecodingWrapper(
    Context context,
    String filePath,
    int comparisonInterval,
    int maxImagesAllowed
)

Creates a new instance.

Parameters
Context context	The Context.
String filePath	The path to the video file.
int comparisonInterval	The number of frames between the frames selected for comparison.
int maxImagesAllowed	The max number of images allowed in ImageReader.

Throws
java.io.IOException	When failed to open the video file.

Public methods

close

public void close()

runUntilComparisonFrameOrEnded

public @Nullable Image runUntilComparisonFrameOrEnded()

Returns the next decoded comparison frame, or null if the stream has ended. The caller takes ownership of any returned image and is responsible for closing it before calling this method again.

Throws
java.lang.InterruptedException