Examples with GifMetadataDecoder com.facebook.animated.giflite.decoder.GifMetadataDecoder used on opensource projects

Example 1 with GifMetadataDecoder

use of com.facebook.animated.giflite.decoder.GifMetadataDecoder in project fresco by facebook.

the class GifDecoder method decode.

@Override
public CloseableImage decode(final EncodedImage encodedImage, int length, QualityInfo qualityInfo, ImageDecodeOptions options) {
    InputStream is = encodedImage.getInputStream();
    try {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        GifMetadataDecoder decoder = GifMetadataDecoder.create(is, out);
        if (out.size() > 0) {
            // let's use the fixed gif version if exists
            is.close();
            is = new ByteArrayInputStream(out.toByteArray());
        }
        is.reset();
        Movie movie = Movie.decodeStream(is);
        MovieDrawer drawer = new MovieDrawer(movie);
        MovieFrame[] frames = new MovieFrame[decoder.getFrameCount()];
        int currTime = 0;
        for (int frameNumber = 0, N = frames.length; frameNumber < N; frameNumber++) {
            int frameDuration = decoder.getFrameDurationMs(frameNumber);
            currTime += frameDuration;
            frames[frameNumber] = new MovieFrame(drawer, currTime, frameDuration, movie.width(), movie.height(), translateFrameDisposal(decoder.getFrameDisposal(frameNumber)));
        }
        return new CloseableAnimatedImage(AnimatedImageResult.forAnimatedImage(new MovieAnimatedImage(frames, encodedImage.getSize(), movie.duration(), decoder.getLoopCount())), false);
    } catch (IOException e) {
        throw new RuntimeException("Error while decoding gif", e);
    } finally {
        try {
            is.close();
        } catch (IOException ignored) {
        }
    }
}

Example 2 with GifMetadataDecoder

use of com.facebook.animated.giflite.decoder.GifMetadataDecoder in project fresco by facebook.

the class GifAnimationBackend method create.

public static GifAnimationBackend create(String filePath) throws IOException {
    InputStream is = null;
    try {
        is = new BufferedInputStream(new FileInputStream(filePath));
        is.mark(Integer.MAX_VALUE);
        GifMetadataDecoder decoder = GifMetadataDecoder.create(is, null);
        is.reset();
        Movie movie = Movie.decodeStream(is);
        return new GifAnimationBackend(decoder, movie);
    } finally {
        closeSilently(is);
    }
}