Examples with Assertions.checkNotNull com.google.android.exoplayer2.util.Assertions.checkNotNull used on opensource projects

Example 1 with Assertions.checkNotNull

use of com.google.android.exoplayer2.util.Assertions.checkNotNull in project ExoPlayer by google.

the class WavHeaderReader method peek.

/**
   * Peeks and returns a {@code WavHeader}.
   *
   * @param input Input stream to peek the WAV header from.
   * @throws ParserException If the input file is an incorrect RIFF WAV.
   * @throws IOException If peeking from the input fails.
   * @throws InterruptedException If interrupted while peeking from input.
   * @return A new {@code WavHeader} peeked from {@code input}, or null if the input is not a
   *     supported WAV format.
   */
public static WavHeader peek(ExtractorInput input) throws IOException, InterruptedException {
    Assertions.checkNotNull(input);
    // Allocate a scratch buffer large enough to store the format chunk.
    ParsableByteArray scratch = new ParsableByteArray(16);
    // Attempt to read the RIFF chunk.
    ChunkHeader chunkHeader = ChunkHeader.peek(input, scratch);
    if (chunkHeader.id != Util.getIntegerCodeForString("RIFF")) {
        return null;
    }
    input.peekFully(scratch.data, 0, 4);
    scratch.setPosition(0);
    int riffFormat = scratch.readInt();
    if (riffFormat != Util.getIntegerCodeForString("WAVE")) {
        Log.e(TAG, "Unsupported RIFF format: " + riffFormat);
        return null;
    }
    // Skip chunks until we find the format chunk.
    chunkHeader = ChunkHeader.peek(input, scratch);
    while (chunkHeader.id != Util.getIntegerCodeForString("fmt ")) {
        input.advancePeekPosition((int) chunkHeader.size);
        chunkHeader = ChunkHeader.peek(input, scratch);
    }
    Assertions.checkState(chunkHeader.size >= 16);
    input.peekFully(scratch.data, 0, 16);
    scratch.setPosition(0);
    int type = scratch.readLittleEndianUnsignedShort();
    int numChannels = scratch.readLittleEndianUnsignedShort();
    int sampleRateHz = scratch.readLittleEndianUnsignedIntToInt();
    int averageBytesPerSecond = scratch.readLittleEndianUnsignedIntToInt();
    int blockAlignment = scratch.readLittleEndianUnsignedShort();
    int bitsPerSample = scratch.readLittleEndianUnsignedShort();
    int expectedBlockAlignment = numChannels * bitsPerSample / 8;
    if (blockAlignment != expectedBlockAlignment) {
        throw new ParserException("Expected block alignment: " + expectedBlockAlignment + "; got: " + blockAlignment);
    }
    @C.PcmEncoding int encoding = Util.getPcmEncoding(bitsPerSample);
    if (encoding == C.ENCODING_INVALID) {
        Log.e(TAG, "Unsupported WAV bit depth: " + bitsPerSample);
        return null;
    }
    if (type != TYPE_PCM && type != TYPE_WAVE_FORMAT_EXTENSIBLE) {
        Log.e(TAG, "Unsupported WAV format type: " + type);
        return null;
    }
    // If present, skip extensionSize, validBitsPerSample, channelMask, subFormatGuid, ...
    input.advancePeekPosition((int) chunkHeader.size - 16);
    return new WavHeader(numChannels, sampleRateHz, averageBytesPerSecond, blockAlignment, bitsPerSample, encoding);
}

Example 2 with Assertions.checkNotNull

use of com.google.android.exoplayer2.util.Assertions.checkNotNull in project ExoPlayer by google.

the class VpxDecoder method decode.

@Override
@Nullable
protected VpxDecoderException decode(DecoderInputBuffer inputBuffer, VideoDecoderOutputBuffer outputBuffer, boolean reset) {
    if (reset && lastSupplementalData != null) {
        // Don't propagate supplemental data across calls to flush the decoder.
        lastSupplementalData.clear();
    }
    ByteBuffer inputData = Util.castNonNull(inputBuffer.data);
    int inputSize = inputData.limit();
    CryptoInfo cryptoInfo = inputBuffer.cryptoInfo;
    final long result = inputBuffer.isEncrypted() ? vpxSecureDecode(vpxDecContext, inputData, inputSize, cryptoConfig, cryptoInfo.mode, Assertions.checkNotNull(cryptoInfo.key), Assertions.checkNotNull(cryptoInfo.iv), cryptoInfo.numSubSamples, cryptoInfo.numBytesOfClearData, cryptoInfo.numBytesOfEncryptedData) : vpxDecode(vpxDecContext, inputData, inputSize);
    if (result != NO_ERROR) {
        if (result == DRM_ERROR) {
            String message = "Drm error: " + vpxGetErrorMessage(vpxDecContext);
            CryptoException cause = new CryptoException(vpxGetErrorCode(vpxDecContext), message);
            return new VpxDecoderException(message, cause);
        } else {
            return new VpxDecoderException("Decode error: " + vpxGetErrorMessage(vpxDecContext));
        }
    }
    if (inputBuffer.hasSupplementalData()) {
        ByteBuffer supplementalData = Assertions.checkNotNull(inputBuffer.supplementalData);
        int size = supplementalData.remaining();
        if (size > 0) {
            if (lastSupplementalData == null || lastSupplementalData.capacity() < size) {
                lastSupplementalData = ByteBuffer.allocate(size);
            } else {
                lastSupplementalData.clear();
            }
            lastSupplementalData.put(supplementalData);
            lastSupplementalData.flip();
        }
    }
    if (!inputBuffer.isDecodeOnly()) {
        outputBuffer.init(inputBuffer.timeUs, outputMode, lastSupplementalData);
        int getFrameResult = vpxGetFrame(vpxDecContext, outputBuffer);
        if (getFrameResult == 1) {
            outputBuffer.addFlag(C.BUFFER_FLAG_DECODE_ONLY);
        } else if (getFrameResult == -1) {
            return new VpxDecoderException("Buffer initialization failed.");
        }
        outputBuffer.format = inputBuffer.format;
    }
    return null;
}

Example 3 with Assertions.checkNotNull

use of com.google.android.exoplayer2.util.Assertions.checkNotNull in project ExoPlayer by google.

the class MetadataRenderer method decodeWrappedMetadata.

/**
 * Iterates through {@code metadata.entries} and checks each one to see if contains wrapped
 * metadata. If it does, then we recursively decode the wrapped metadata. If it doesn't (recursion
 * base-case), we add the {@link Metadata.Entry} to {@code decodedEntries} (output parameter).
 */
private void decodeWrappedMetadata(Metadata metadata, List<Metadata.Entry> decodedEntries) {
    for (int i = 0; i < metadata.length(); i++) {
        @Nullable Format wrappedMetadataFormat = metadata.get(i).getWrappedMetadataFormat();
        if (wrappedMetadataFormat != null && decoderFactory.supportsFormat(wrappedMetadataFormat)) {
            MetadataDecoder wrappedMetadataDecoder = decoderFactory.createDecoder(wrappedMetadataFormat);
            // wrappedMetadataFormat != null so wrappedMetadataBytes must be non-null too.
            byte[] wrappedMetadataBytes = Assertions.checkNotNull(metadata.get(i).getWrappedMetadataBytes());
            buffer.clear();
            buffer.ensureSpaceForWrite(wrappedMetadataBytes.length);
            castNonNull(buffer.data).put(wrappedMetadataBytes);
            buffer.flip();
            @Nullable Metadata innerMetadata = wrappedMetadataDecoder.decode(buffer);
            if (innerMetadata != null) {
                // The decoding succeeded, so we'll try another level of unwrapping.
                decodeWrappedMetadata(innerMetadata, decodedEntries);
            }
        } else {
            // Entry doesn't contain any wrapped metadata, so output it directly.
            decodedEntries.add(metadata.get(i));
        }
    }
}

Example 4 with Assertions.checkNotNull

use of com.google.android.exoplayer2.util.Assertions.checkNotNull in project ExoPlayer by google.

the class BundledExtractorsAdapter method init.

@Override
public void init(DataReader dataReader, Uri uri, Map<String, List<String>> responseHeaders, long position, long length, ExtractorOutput output) throws IOException {
    ExtractorInput extractorInput = new DefaultExtractorInput(dataReader, position, length);
    this.extractorInput = extractorInput;
    if (extractor != null) {
        return;
    }
    Extractor[] extractors = extractorsFactory.createExtractors(uri, responseHeaders);
    if (extractors.length == 1) {
        this.extractor = extractors[0];
    } else {
        for (Extractor extractor : extractors) {
            try {
                if (extractor.sniff(extractorInput)) {
                    this.extractor = extractor;
                    break;
                }
            } catch (EOFException e) {
            // Do nothing.
            } finally {
                Assertions.checkState(this.extractor != null || extractorInput.getPosition() == position);
                extractorInput.resetPeekPosition();
            }
        }
        if (extractor == null) {
            throw new UnrecognizedInputFormatException("None of the available extractors (" + Util.getCommaDelimitedSimpleClassNames(extractors) + ") could read the stream.", Assertions.checkNotNull(uri));
        }
    }
    extractor.init(output);
}

Example 5 with Assertions.checkNotNull

use of com.google.android.exoplayer2.util.Assertions.checkNotNull in project ExoPlayer by google.

the class HttpMediaDrmCallback method executePost.

private static byte[] executePost(HttpDataSource.Factory dataSourceFactory, String url, @Nullable byte[] httpBody, Map<String, String> requestProperties) throws MediaDrmCallbackException {
    StatsDataSource dataSource = new StatsDataSource(dataSourceFactory.createDataSource());
    int manualRedirectCount = 0;
    DataSpec dataSpec = new DataSpec.Builder().setUri(url).setHttpRequestHeaders(requestProperties).setHttpMethod(DataSpec.HTTP_METHOD_POST).setHttpBody(httpBody).setFlags(DataSpec.FLAG_ALLOW_GZIP).build();
    DataSpec originalDataSpec = dataSpec;
    try {
        while (true) {
            DataSourceInputStream inputStream = new DataSourceInputStream(dataSource, dataSpec);
            try {
                return Util.toByteArray(inputStream);
            } catch (InvalidResponseCodeException e) {
                @Nullable String redirectUrl = getRedirectUrl(e, manualRedirectCount);
                if (redirectUrl == null) {
                    throw e;
                }
                manualRedirectCount++;
                dataSpec = dataSpec.buildUpon().setUri(redirectUrl).build();
            } finally {
                Util.closeQuietly(inputStream);
            }
        }
    } catch (Exception e) {
        throw new MediaDrmCallbackException(originalDataSpec, Assertions.checkNotNull(dataSource.getLastOpenedUri()), dataSource.getResponseHeaders(), dataSource.getBytesRead(), /* cause= */
        e);
    }
}