Examples with HevcConfig com.google.android.exoplayer2.video.HevcConfig used on opensource projects

Example 1 with HevcConfig

use of com.google.android.exoplayer2.video.HevcConfig in project ExoPlayer by google.

the class HevcConfig method parse.

/**
   * Parses HEVC configuration data.
   *
   * @param data A {@link ParsableByteArray}, whose position is set to the start of the HEVC
   *     configuration data to parse.
   * @return A parsed representation of the HEVC configuration data.
   * @throws ParserException If an error occurred parsing the data.
   */
public static HevcConfig parse(ParsableByteArray data) throws ParserException {
    try {
        // Skip to the NAL unit length size field.
        data.skipBytes(21);
        int lengthSizeMinusOne = data.readUnsignedByte() & 0x03;
        // Calculate the combined size of all VPS/SPS/PPS bitstreams.
        int numberOfArrays = data.readUnsignedByte();
        int csdLength = 0;
        int csdStartPosition = data.getPosition();
        for (int i = 0; i < numberOfArrays; i++) {
            // completeness (1), nal_unit_type (7)
            data.skipBytes(1);
            int numberOfNalUnits = data.readUnsignedShort();
            for (int j = 0; j < numberOfNalUnits; j++) {
                int nalUnitLength = data.readUnsignedShort();
                // Start code and NAL unit.
                csdLength += 4 + nalUnitLength;
                data.skipBytes(nalUnitLength);
            }
        }
        // Concatenate the codec-specific data into a single buffer.
        data.setPosition(csdStartPosition);
        byte[] buffer = new byte[csdLength];
        int bufferPosition = 0;
        for (int i = 0; i < numberOfArrays; i++) {
            // completeness (1), nal_unit_type (7)
            data.skipBytes(1);
            int numberOfNalUnits = data.readUnsignedShort();
            for (int j = 0; j < numberOfNalUnits; j++) {
                int nalUnitLength = data.readUnsignedShort();
                System.arraycopy(NalUnitUtil.NAL_START_CODE, 0, buffer, bufferPosition, NalUnitUtil.NAL_START_CODE.length);
                bufferPosition += NalUnitUtil.NAL_START_CODE.length;
                System.arraycopy(data.data, data.getPosition(), buffer, bufferPosition, nalUnitLength);
                bufferPosition += nalUnitLength;
                data.skipBytes(nalUnitLength);
            }
        }
        List<byte[]> initializationData = csdLength == 0 ? null : Collections.singletonList(buffer);
        return new HevcConfig(initializationData, lengthSizeMinusOne + 1);
    } catch (ArrayIndexOutOfBoundsException e) {
        throw new ParserException("Error parsing HEVC config", e);
    }
}

Example 2 with HevcConfig

use of com.google.android.exoplayer2.video.HevcConfig in project ExoPlayer by google.

the class AtomParsers method parseVideoSampleEntry.

private static void parseVideoSampleEntry(ParsableByteArray parent, int atomType, int position, int size, int trackId, int rotationDegrees, DrmInitData drmInitData, StsdData out, int entryIndex) throws ParserException {
    parent.setPosition(position + Atom.HEADER_SIZE);
    parent.skipBytes(24);
    int width = parent.readUnsignedShort();
    int height = parent.readUnsignedShort();
    boolean pixelWidthHeightRatioFromPasp = false;
    float pixelWidthHeightRatio = 1;
    parent.skipBytes(50);
    int childPosition = parent.getPosition();
    if (atomType == Atom.TYPE_encv) {
        atomType = parseSampleEntryEncryptionData(parent, position, size, out, entryIndex);
        parent.setPosition(childPosition);
    }
    List<byte[]> initializationData = null;
    String mimeType = null;
    byte[] projectionData = null;
    @C.StereoMode int stereoMode = Format.NO_VALUE;
    while (childPosition - position < size) {
        parent.setPosition(childPosition);
        int childStartPosition = parent.getPosition();
        int childAtomSize = parent.readInt();
        if (childAtomSize == 0 && parent.getPosition() - position == size) {
            // Handle optional terminating four zero bytes in MOV files.
            break;
        }
        Assertions.checkArgument(childAtomSize > 0, "childAtomSize should be positive");
        int childAtomType = parent.readInt();
        if (childAtomType == Atom.TYPE_avcC) {
            Assertions.checkState(mimeType == null);
            mimeType = MimeTypes.VIDEO_H264;
            parent.setPosition(childStartPosition + Atom.HEADER_SIZE);
            AvcConfig avcConfig = AvcConfig.parse(parent);
            initializationData = avcConfig.initializationData;
            out.nalUnitLengthFieldLength = avcConfig.nalUnitLengthFieldLength;
            if (!pixelWidthHeightRatioFromPasp) {
                pixelWidthHeightRatio = avcConfig.pixelWidthAspectRatio;
            }
        } else if (childAtomType == Atom.TYPE_hvcC) {
            Assertions.checkState(mimeType == null);
            mimeType = MimeTypes.VIDEO_H265;
            parent.setPosition(childStartPosition + Atom.HEADER_SIZE);
            HevcConfig hevcConfig = HevcConfig.parse(parent);
            initializationData = hevcConfig.initializationData;
            out.nalUnitLengthFieldLength = hevcConfig.nalUnitLengthFieldLength;
        } else if (childAtomType == Atom.TYPE_vpcC) {
            Assertions.checkState(mimeType == null);
            mimeType = (atomType == Atom.TYPE_vp08) ? MimeTypes.VIDEO_VP8 : MimeTypes.VIDEO_VP9;
        } else if (childAtomType == Atom.TYPE_d263) {
            Assertions.checkState(mimeType == null);
            mimeType = MimeTypes.VIDEO_H263;
        } else if (childAtomType == Atom.TYPE_esds) {
            Assertions.checkState(mimeType == null);
            Pair<String, byte[]> mimeTypeAndInitializationData = parseEsdsFromParent(parent, childStartPosition);
            mimeType = mimeTypeAndInitializationData.first;
            initializationData = Collections.singletonList(mimeTypeAndInitializationData.second);
        } else if (childAtomType == Atom.TYPE_pasp) {
            pixelWidthHeightRatio = parsePaspFromParent(parent, childStartPosition);
            pixelWidthHeightRatioFromPasp = true;
        } else if (childAtomType == Atom.TYPE_sv3d) {
            projectionData = parseProjFromParent(parent, childStartPosition, childAtomSize);
        } else if (childAtomType == Atom.TYPE_st3d) {
            int version = parent.readUnsignedByte();
            // Flags.
            parent.skipBytes(3);
            if (version == 0) {
                int layout = parent.readUnsignedByte();
                switch(layout) {
                    case 0:
                        stereoMode = C.STEREO_MODE_MONO;
                        break;
                    case 1:
                        stereoMode = C.STEREO_MODE_TOP_BOTTOM;
                        break;
                    case 2:
                        stereoMode = C.STEREO_MODE_LEFT_RIGHT;
                        break;
                    case 3:
                        stereoMode = C.STEREO_MODE_STEREO_MESH;
                        break;
                    default:
                        break;
                }
            }
        }
        childPosition += childAtomSize;
    }
    // If the media type was not recognized, ignore the track.
    if (mimeType == null) {
        return;
    }
    out.format = Format.createVideoSampleFormat(Integer.toString(trackId), mimeType, null, Format.NO_VALUE, Format.NO_VALUE, width, height, Format.NO_VALUE, initializationData, rotationDegrees, pixelWidthHeightRatio, projectionData, stereoMode, drmInitData);
}