Examples with ParserException com.google.android.exoplayer2.ParserException used on opensource projects

Example 16 with ParserException

use of com.google.android.exoplayer2.ParserException in project ExoPlayer by google.

the class Util method parseXsDateTime.

/**
   * Parses an xs:dateTime attribute value, returning the parsed timestamp in milliseconds since
   * the epoch.
   *
   * @param value The attribute value to decode.
   * @return The parsed timestamp in milliseconds since the epoch.
   * @throws ParserException if an error occurs parsing the dateTime attribute value.
   */
public static long parseXsDateTime(String value) throws ParserException {
    Matcher matcher = XS_DATE_TIME_PATTERN.matcher(value);
    if (!matcher.matches()) {
        throw new ParserException("Invalid date/time format: " + value);
    }
    int timezoneShift;
    if (matcher.group(9) == null) {
        // No time zone specified.
        timezoneShift = 0;
    } else if (matcher.group(9).equalsIgnoreCase("Z")) {
        timezoneShift = 0;
    } else {
        timezoneShift = ((Integer.parseInt(matcher.group(12)) * 60 + Integer.parseInt(matcher.group(13))));
        if (matcher.group(11).equals("-")) {
            timezoneShift *= -1;
        }
    }
    Calendar dateTime = new GregorianCalendar(TimeZone.getTimeZone("GMT"));
    dateTime.clear();
    // Note: The month value is 0-based, hence the -1 on group(2)
    dateTime.set(Integer.parseInt(matcher.group(1)), Integer.parseInt(matcher.group(2)) - 1, Integer.parseInt(matcher.group(3)), Integer.parseInt(matcher.group(4)), Integer.parseInt(matcher.group(5)), Integer.parseInt(matcher.group(6)));
    if (!TextUtils.isEmpty(matcher.group(8))) {
        final BigDecimal bd = new BigDecimal("0." + matcher.group(8));
        // we care only for milliseconds, so movePointRight(3)
        dateTime.set(Calendar.MILLISECOND, bd.movePointRight(3).intValue());
    }
    long time = dateTime.getTimeInMillis();
    if (timezoneShift != 0) {
        time -= timezoneShift * 60000;
    }
    return time;
}

Example 17 with ParserException

use of com.google.android.exoplayer2.ParserException in project ExoPlayer by google.

the class AvcConfig method parse.

/**
   * Parses AVC configuration data.
   *
   * @param data A {@link ParsableByteArray}, whose position is set to the start of the AVC
   *     configuration data to parse.
   * @return A parsed representation of the HEVC configuration data.
   * @throws ParserException If an error occurred parsing the data.
   */
public static AvcConfig parse(ParsableByteArray data) throws ParserException {
    try {
        // Skip to the AVCDecoderConfigurationRecord (defined in 14496-15)
        data.skipBytes(4);
        int nalUnitLengthFieldLength = (data.readUnsignedByte() & 0x3) + 1;
        if (nalUnitLengthFieldLength == 3) {
            throw new IllegalStateException();
        }
        List<byte[]> initializationData = new ArrayList<>();
        int numSequenceParameterSets = data.readUnsignedByte() & 0x1F;
        for (int j = 0; j < numSequenceParameterSets; j++) {
            initializationData.add(buildNalUnitForChild(data));
        }
        int numPictureParameterSets = data.readUnsignedByte();
        for (int j = 0; j < numPictureParameterSets; j++) {
            initializationData.add(buildNalUnitForChild(data));
        }
        int width = Format.NO_VALUE;
        int height = Format.NO_VALUE;
        float pixelWidthAspectRatio = 1;
        if (numSequenceParameterSets > 0) {
            byte[] sps = initializationData.get(0);
            SpsData spsData = NalUnitUtil.parseSpsNalUnit(initializationData.get(0), nalUnitLengthFieldLength, sps.length);
            width = spsData.width;
            height = spsData.height;
            pixelWidthAspectRatio = spsData.pixelWidthAspectRatio;
        }
        return new AvcConfig(initializationData, nalUnitLengthFieldLength, width, height, pixelWidthAspectRatio);
    } catch (ArrayIndexOutOfBoundsException e) {
        throw new ParserException("Error parsing AVC config", e);
    }
}

Example 18 with ParserException

use of com.google.android.exoplayer2.ParserException 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 19 with ParserException

use of com.google.android.exoplayer2.ParserException in project ExoPlayer by google.

the class DashManifestParser method parseMediaPresentationDescription.

protected DashManifest parseMediaPresentationDescription(XmlPullParser xpp, String baseUrl) throws XmlPullParserException, IOException {
    long availabilityStartTime = parseDateTime(xpp, "availabilityStartTime", C.TIME_UNSET);
    long durationMs = parseDuration(xpp, "mediaPresentationDuration", C.TIME_UNSET);
    long minBufferTimeMs = parseDuration(xpp, "minBufferTime", C.TIME_UNSET);
    String typeString = xpp.getAttributeValue(null, "type");
    boolean dynamic = typeString != null && typeString.equals("dynamic");
    long minUpdateTimeMs = dynamic ? parseDuration(xpp, "minimumUpdatePeriod", C.TIME_UNSET) : C.TIME_UNSET;
    long timeShiftBufferDepthMs = dynamic ? parseDuration(xpp, "timeShiftBufferDepth", C.TIME_UNSET) : C.TIME_UNSET;
    long suggestedPresentationDelayMs = dynamic ? parseDuration(xpp, "suggestedPresentationDelay", C.TIME_UNSET) : C.TIME_UNSET;
    UtcTimingElement utcTiming = null;
    Uri location = null;
    List<Period> periods = new ArrayList<>();
    long nextPeriodStartMs = dynamic ? C.TIME_UNSET : 0;
    boolean seenEarlyAccessPeriod = false;
    boolean seenFirstBaseUrl = false;
    do {
        xpp.next();
        if (XmlPullParserUtil.isStartTag(xpp, "BaseURL")) {
            if (!seenFirstBaseUrl) {
                baseUrl = parseBaseUrl(xpp, baseUrl);
                seenFirstBaseUrl = true;
            }
        } else if (XmlPullParserUtil.isStartTag(xpp, "UTCTiming")) {
            utcTiming = parseUtcTiming(xpp);
        } else if (XmlPullParserUtil.isStartTag(xpp, "Location")) {
            location = Uri.parse(xpp.nextText());
        } else if (XmlPullParserUtil.isStartTag(xpp, "Period") && !seenEarlyAccessPeriod) {
            Pair<Period, Long> periodWithDurationMs = parsePeriod(xpp, baseUrl, nextPeriodStartMs);
            Period period = periodWithDurationMs.first;
            if (period.startMs == C.TIME_UNSET) {
                if (dynamic) {
                    // This is an early access period. Ignore it. All subsequent periods must also be
                    // early access.
                    seenEarlyAccessPeriod = true;
                } else {
                    throw new ParserException("Unable to determine start of period " + periods.size());
                }
            } else {
                long periodDurationMs = periodWithDurationMs.second;
                nextPeriodStartMs = periodDurationMs == C.TIME_UNSET ? C.TIME_UNSET : (period.startMs + periodDurationMs);
                periods.add(period);
            }
        }
    } while (!XmlPullParserUtil.isEndTag(xpp, "MPD"));
    if (durationMs == C.TIME_UNSET) {
        if (nextPeriodStartMs != C.TIME_UNSET) {
            // If we know the end time of the final period, we can use it as the duration.
            durationMs = nextPeriodStartMs;
        } else if (!dynamic) {
            throw new ParserException("Unable to determine duration of static manifest.");
        }
    }
    if (periods.isEmpty()) {
        throw new ParserException("No periods found.");
    }
    return buildMediaPresentationDescription(availabilityStartTime, durationMs, minBufferTimeMs, dynamic, minUpdateTimeMs, timeShiftBufferDepthMs, suggestedPresentationDelayMs, utcTiming, location, periods);
}

Example 20 with ParserException

use of com.google.android.exoplayer2.ParserException in project ExoPlayer by google.

the class SsManifestParser method parse.

@Override
public SsManifest parse(Uri uri, InputStream inputStream) throws IOException {
    try {
        XmlPullParser xmlParser = xmlParserFactory.newPullParser();
        xmlParser.setInput(inputStream, null);
        SmoothStreamingMediaParser smoothStreamingMediaParser = new SmoothStreamingMediaParser(null, uri.toString());
        return (SsManifest) smoothStreamingMediaParser.parse(xmlParser);
    } catch (XmlPullParserException e) {
        throw new ParserException(e);
    }
}