Examples with Format io.atlasmap.v2.Format used on opensource projects

Example 31 with Format

use of io.atlasmap.v2.Format in project ExoPlayer by google.

the class DefaultTrackSelector method selectTextTrack.

// Text track selection implementation.
protected TrackSelection selectTextTrack(TrackGroupArray groups, int[][] formatSupport, String preferredTextLanguage, String preferredAudioLanguage, boolean exceedRendererCapabilitiesIfNecessary) {
    TrackGroup selectedGroup = null;
    int selectedTrackIndex = 0;
    int selectedTrackScore = 0;
    for (int groupIndex = 0; groupIndex < groups.length; groupIndex++) {
        TrackGroup trackGroup = groups.get(groupIndex);
        int[] trackFormatSupport = formatSupport[groupIndex];
        for (int trackIndex = 0; trackIndex < trackGroup.length; trackIndex++) {
            if (isSupported(trackFormatSupport[trackIndex], exceedRendererCapabilitiesIfNecessary)) {
                Format format = trackGroup.getFormat(trackIndex);
                boolean isDefault = (format.selectionFlags & C.SELECTION_FLAG_DEFAULT) != 0;
                boolean isForced = (format.selectionFlags & C.SELECTION_FLAG_FORCED) != 0;
                int trackScore;
                if (formatHasLanguage(format, preferredTextLanguage)) {
                    if (isDefault) {
                        trackScore = 6;
                    } else if (!isForced) {
                        // Prefer non-forced to forced if a preferred text language has been specified. Where
                        // both are provided the non-forced track will usually contain the forced subtitles as
                        // a subset.
                        trackScore = 5;
                    } else {
                        trackScore = 4;
                    }
                } else if (isDefault) {
                    trackScore = 3;
                } else if (isForced) {
                    if (formatHasLanguage(format, preferredAudioLanguage)) {
                        trackScore = 2;
                    } else {
                        trackScore = 1;
                    }
                } else {
                    // Track should not be selected.
                    continue;
                }
                if (isSupported(trackFormatSupport[trackIndex], false)) {
                    trackScore += WITHIN_RENDERER_CAPABILITIES_BONUS;
                }
                if (trackScore > selectedTrackScore) {
                    selectedGroup = trackGroup;
                    selectedTrackIndex = trackIndex;
                    selectedTrackScore = trackScore;
                }
            }
        }
    }
    return selectedGroup == null ? null : new FixedTrackSelection(selectedGroup, selectedTrackIndex);
}

Example 32 with Format

use of io.atlasmap.v2.Format in project ExoPlayer by google.

the class DefaultTrackSelector method selectFixedVideoTrack.

private static TrackSelection selectFixedVideoTrack(TrackGroupArray groups, int[][] formatSupport, int maxVideoWidth, int maxVideoHeight, int maxVideoBitrate, int viewportWidth, int viewportHeight, boolean orientationMayChange, boolean exceedConstraintsIfNecessary, boolean exceedRendererCapabilitiesIfNecessary) {
    TrackGroup selectedGroup = null;
    int selectedTrackIndex = 0;
    int selectedTrackScore = 0;
    int selectedBitrate = Format.NO_VALUE;
    int selectedPixelCount = Format.NO_VALUE;
    for (int groupIndex = 0; groupIndex < groups.length; groupIndex++) {
        TrackGroup trackGroup = groups.get(groupIndex);
        List<Integer> selectedTrackIndices = getViewportFilteredTrackIndices(trackGroup, viewportWidth, viewportHeight, orientationMayChange);
        int[] trackFormatSupport = formatSupport[groupIndex];
        for (int trackIndex = 0; trackIndex < trackGroup.length; trackIndex++) {
            if (isSupported(trackFormatSupport[trackIndex], exceedRendererCapabilitiesIfNecessary)) {
                Format format = trackGroup.getFormat(trackIndex);
                boolean isWithinConstraints = selectedTrackIndices.contains(trackIndex) && (format.width == Format.NO_VALUE || format.width <= maxVideoWidth) && (format.height == Format.NO_VALUE || format.height <= maxVideoHeight) && (format.bitrate == Format.NO_VALUE || format.bitrate <= maxVideoBitrate);
                if (!isWithinConstraints && !exceedConstraintsIfNecessary) {
                    // Track should not be selected.
                    continue;
                }
                int trackScore = isWithinConstraints ? 2 : 1;
                if (isSupported(trackFormatSupport[trackIndex], false)) {
                    trackScore += WITHIN_RENDERER_CAPABILITIES_BONUS;
                }
                boolean selectTrack = trackScore > selectedTrackScore;
                if (trackScore == selectedTrackScore) {
                    // Use the pixel count as a tie breaker (or bitrate if pixel counts are tied). If we're
                    // within constraints prefer a higher pixel count (or bitrate), else prefer a lower
                    // count (or bitrate). If still tied then prefer the first track (i.e. the one that's
                    // already selected).
                    int comparisonResult;
                    int formatPixelCount = format.getPixelCount();
                    if (formatPixelCount != selectedPixelCount) {
                        comparisonResult = compareFormatValues(format.getPixelCount(), selectedPixelCount);
                    } else {
                        comparisonResult = compareFormatValues(format.bitrate, selectedBitrate);
                    }
                    selectTrack = isWithinConstraints ? comparisonResult > 0 : comparisonResult < 0;
                }
                if (selectTrack) {
                    selectedGroup = trackGroup;
                    selectedTrackIndex = trackIndex;
                    selectedTrackScore = trackScore;
                    selectedBitrate = format.bitrate;
                    selectedPixelCount = format.getPixelCount();
                }
            }
        }
    }
    return selectedGroup == null ? null : new FixedTrackSelection(selectedGroup, selectedTrackIndex);
}

Example 33 with Format

use of io.atlasmap.v2.Format in project ExoPlayer by google.

the class DefaultTrackSelector method getViewportFilteredTrackIndices.

// Viewport size util methods.
private static List<Integer> getViewportFilteredTrackIndices(TrackGroup group, int viewportWidth, int viewportHeight, boolean orientationMayChange) {
    // Initially include all indices.
    ArrayList<Integer> selectedTrackIndices = new ArrayList<>(group.length);
    for (int i = 0; i < group.length; i++) {
        selectedTrackIndices.add(i);
    }
    if (viewportWidth == Integer.MAX_VALUE || viewportHeight == Integer.MAX_VALUE) {
        // Viewport dimensions not set. Return the full set of indices.
        return selectedTrackIndices;
    }
    int maxVideoPixelsToRetain = Integer.MAX_VALUE;
    for (int i = 0; i < group.length; i++) {
        Format format = group.getFormat(i);
        // We'll discard formats of higher resolution.
        if (format.width > 0 && format.height > 0) {
            Point maxVideoSizeInViewport = getMaxVideoSizeInViewport(orientationMayChange, viewportWidth, viewportHeight, format.width, format.height);
            int videoPixels = format.width * format.height;
            if (format.width >= (int) (maxVideoSizeInViewport.x * FRACTION_TO_CONSIDER_FULLSCREEN) && format.height >= (int) (maxVideoSizeInViewport.y * FRACTION_TO_CONSIDER_FULLSCREEN) && videoPixels < maxVideoPixelsToRetain) {
                maxVideoPixelsToRetain = videoPixels;
            }
        }
    }
    // filter out formats with unknown dimensions, since we have some whose dimensions are known.
    if (maxVideoPixelsToRetain != Integer.MAX_VALUE) {
        for (int i = selectedTrackIndices.size() - 1; i >= 0; i--) {
            Format format = group.getFormat(selectedTrackIndices.get(i));
            int pixelCount = format.getPixelCount();
            if (pixelCount == Format.NO_VALUE || pixelCount > maxVideoPixelsToRetain) {
                selectedTrackIndices.remove(i);
            }
        }
    }
    return selectedTrackIndices;
}

Example 34 with Format

use of io.atlasmap.v2.Format in project ExoPlayer by google.

the class WavExtractor method read.

@Override
public int read(ExtractorInput input, PositionHolder seekPosition) throws IOException, InterruptedException {
    if (wavHeader == null) {
        wavHeader = WavHeaderReader.peek(input);
        if (wavHeader == null) {
            // Should only happen if the media wasn't sniffed.
            throw new ParserException("Unsupported or unrecognized wav header.");
        }
        Format format = Format.createAudioSampleFormat(null, MimeTypes.AUDIO_RAW, null, wavHeader.getBitrate(), MAX_INPUT_SIZE, wavHeader.getNumChannels(), wavHeader.getSampleRateHz(), wavHeader.getEncoding(), null, null, 0, null);
        trackOutput.format(format);
        bytesPerFrame = wavHeader.getBytesPerFrame();
    }
    if (!wavHeader.hasDataBounds()) {
        WavHeaderReader.skipToData(input, wavHeader);
        extractorOutput.seekMap(this);
    }
    int bytesAppended = trackOutput.sampleData(input, MAX_INPUT_SIZE - pendingBytes, true);
    if (bytesAppended != RESULT_END_OF_INPUT) {
        pendingBytes += bytesAppended;
    }
    // Samples must consist of a whole number of frames.
    int pendingFrames = pendingBytes / bytesPerFrame;
    if (pendingFrames > 0) {
        long timeUs = wavHeader.getTimeUs(input.getPosition() - pendingBytes);
        int size = pendingFrames * bytesPerFrame;
        pendingBytes -= size;
        trackOutput.sampleMetadata(timeUs, C.BUFFER_FLAG_KEY_FRAME, size, pendingBytes, null);
    }
    return bytesAppended == RESULT_END_OF_INPUT ? RESULT_END_OF_INPUT : RESULT_CONTINUE;
}

Example 35 with Format

use of io.atlasmap.v2.Format in project ExoPlayer by google.

the class HlsSampleStreamWrapper method readData.

/* package */
int readData(int group, FormatHolder formatHolder, DecoderInputBuffer buffer, boolean requireFormat) {
    if (isPendingReset()) {
        return C.RESULT_NOTHING_READ;
    }
    while (mediaChunks.size() > 1 && finishedReadingChunk(mediaChunks.getFirst())) {
        mediaChunks.removeFirst();
    }
    HlsMediaChunk currentChunk = mediaChunks.getFirst();
    Format trackFormat = currentChunk.trackFormat;
    if (!trackFormat.equals(downstreamTrackFormat)) {
        eventDispatcher.downstreamFormatChanged(trackType, trackFormat, currentChunk.trackSelectionReason, currentChunk.trackSelectionData, currentChunk.startTimeUs);
    }
    downstreamTrackFormat = trackFormat;
    return sampleQueues.valueAt(group).readData(formatHolder, buffer, requireFormat, loadingFinished, lastSeekPositionUs);
}