Examples with RequiresNonNull org.checkerframework.checker.nullness.qual.RequiresNonNull used on opensource projects

Example 6 with RequiresNonNull

use of org.checkerframework.checker.nullness.qual.RequiresNonNull in project ExoPlayer by google.

the class TransformerActivity method playMediaItem.

@RequiresNonNull({ "playerView", "debugTextView" })
private void playMediaItem(MediaItem mediaItem) {
    playerView.setPlayer(null);
    releasePlayer();
    ExoPlayer player = new ExoPlayer.Builder(/* context= */
    this).build();
    playerView.setPlayer(player);
    player.setMediaItem(mediaItem);
    player.play();
    player.prepare();
    this.player = player;
    debugTextViewHelper = new DebugTextViewHelper(player, debugTextView);
    debugTextViewHelper.start();
}

Example 7 with RequiresNonNull

use of org.checkerframework.checker.nullness.qual.RequiresNonNull in project ExoPlayer by google.

the class FlacExtractor method handlePendingSeek.

@RequiresNonNull("binarySearchSeeker")
private int handlePendingSeek(ExtractorInput input, PositionHolder seekPosition, ParsableByteArray outputBuffer, OutputFrameHolder outputFrameHolder, TrackOutput trackOutput) throws IOException {
    int seekResult = binarySearchSeeker.handlePendingSeek(input, seekPosition);
    ByteBuffer outputByteBuffer = outputFrameHolder.byteBuffer;
    if (seekResult == RESULT_CONTINUE && outputByteBuffer.limit() > 0) {
        outputSample(outputBuffer, outputByteBuffer.limit(), outputFrameHolder.timeUs, trackOutput);
    }
    return seekResult;
}

Example 8 with RequiresNonNull

use of org.checkerframework.checker.nullness.qual.RequiresNonNull in project ExoPlayer by google.

the class MpegAudioReader method readHeaderRemainder.

/**
 * Attempts to read the remaining two bytes of the frame header.
 *
 * <p>If a frame header is read in full then the state is changed to {@link #STATE_READING_FRAME},
 * the media format is output if this has not previously occurred, the four header bytes are
 * output as sample data, and the position of the source is advanced to the byte that immediately
 * follows the header.
 *
 * <p>If a frame header is read in full but cannot be parsed then the state is changed to {@link
 * #STATE_READING_HEADER}.
 *
 * <p>If a frame header is not read in full then the position of the source is advanced to the
 * limit, and the method should be called again with the next source to continue the read.
 *
 * @param source The source from which to read.
 */
@RequiresNonNull("output")
private void readHeaderRemainder(ParsableByteArray source) {
    int bytesToRead = min(source.bytesLeft(), HEADER_SIZE - frameBytesRead);
    source.readBytes(headerScratch.getData(), frameBytesRead, bytesToRead);
    frameBytesRead += bytesToRead;
    if (frameBytesRead < HEADER_SIZE) {
        // We haven't read the whole header yet.
        return;
    }
    headerScratch.setPosition(0);
    boolean parsedHeader = header.setForHeaderData(headerScratch.readInt());
    if (!parsedHeader) {
        // We thought we'd located a frame header, but we hadn't.
        frameBytesRead = 0;
        state = STATE_READING_HEADER;
        return;
    }
    frameSize = header.frameSize;
    if (!hasOutputFormat) {
        frameDurationUs = (C.MICROS_PER_SECOND * header.samplesPerFrame) / header.sampleRate;
        Format format = new Format.Builder().setId(formatId).setSampleMimeType(header.mimeType).setMaxInputSize(MpegAudioUtil.MAX_FRAME_SIZE_BYTES).setChannelCount(header.channels).setSampleRate(header.sampleRate).setLanguage(language).build();
        output.format(format);
        hasOutputFormat = true;
    }
    headerScratch.setPosition(0);
    output.sampleData(headerScratch, HEADER_SIZE);
    state = STATE_READING_FRAME;
}

Example 9 with RequiresNonNull

use of org.checkerframework.checker.nullness.qual.RequiresNonNull in project ExoPlayer by google.

the class StreamReader method readPayload.

@RequiresNonNull({ "trackOutput", "oggSeeker", "extractorOutput" })
private int readPayload(ExtractorInput input, PositionHolder seekPosition) throws IOException {
    long position = oggSeeker.read(input);
    if (position >= 0) {
        seekPosition.position = position;
        return Extractor.RESULT_SEEK;
    } else if (position < -1) {
        onSeekEnd(-(position + 2));
    }
    if (!seekMapSet) {
        SeekMap seekMap = checkStateNotNull(oggSeeker.createSeekMap());
        extractorOutput.seekMap(seekMap);
        seekMapSet = true;
    }
    if (lengthOfReadPacket > 0 || oggPacket.populate(input)) {
        lengthOfReadPacket = 0;
        ParsableByteArray payload = oggPacket.getPayload();
        long granulesInPacket = preparePayload(payload);
        if (granulesInPacket >= 0 && currentGranule + granulesInPacket >= targetGranule) {
            // calculate time and send payload data to codec
            long timeUs = convertGranuleToTime(currentGranule);
            trackOutput.sampleData(payload, payload.limit());
            trackOutput.sampleMetadata(timeUs, C.BUFFER_FLAG_KEY_FRAME, payload.limit(), 0, null);
            targetGranule = -1;
        }
        currentGranule += granulesInPacket;
    } else {
        state = STATE_END_OF_INPUT;
        return Extractor.RESULT_END_OF_INPUT;
    }
    return Extractor.RESULT_CONTINUE;
}

Example 10 with RequiresNonNull

use of org.checkerframework.checker.nullness.qual.RequiresNonNull in project ExoPlayer by google.

the class Ac3Reader method parseHeader.

/**
 * Parses the sample header.
 */
@RequiresNonNull("output")
private void parseHeader() {
    headerScratchBits.setPosition(0);
    SyncFrameInfo frameInfo = Ac3Util.parseAc3SyncframeInfo(headerScratchBits);
    if (format == null || frameInfo.channelCount != format.channelCount || frameInfo.sampleRate != format.sampleRate || !Util.areEqual(frameInfo.mimeType, format.sampleMimeType)) {
        format = new Format.Builder().setId(formatId).setSampleMimeType(frameInfo.mimeType).setChannelCount(frameInfo.channelCount).setSampleRate(frameInfo.sampleRate).setLanguage(language).build();
        output.format(format);
    }
    sampleSize = frameInfo.frameSize;
    // In this class a sample is an access unit (syncframe in AC-3), but Format#sampleRate
    // specifies the number of PCM audio samples per second.
    sampleDurationUs = C.MICROS_PER_SECOND * frameInfo.sampleCount / format.sampleRate;
}