Examples with SyncFrameInfo com.google.android.exoplayer2.audio.Ac3Util.SyncFrameInfo used on opensource projects

Example 1 with SyncFrameInfo

use of com.google.android.exoplayer2.audio.Ac3Util.SyncFrameInfo 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;
}

Example 2 with SyncFrameInfo

use of com.google.android.exoplayer2.audio.Ac3Util.SyncFrameInfo in project ExoPlayer by google.

the class Ac4Reader method parseHeader.

/**
 * Parses the sample header.
 */
@RequiresNonNull("output")
private void parseHeader() {
    headerScratchBits.setPosition(0);
    SyncFrameInfo frameInfo = Ac4Util.parseAc4SyncframeInfo(headerScratchBits);
    if (format == null || frameInfo.channelCount != format.channelCount || frameInfo.sampleRate != format.sampleRate || !MimeTypes.AUDIO_AC4.equals(format.sampleMimeType)) {
        format = new Format.Builder().setId(formatId).setSampleMimeType(MimeTypes.AUDIO_AC4).setChannelCount(frameInfo.channelCount).setSampleRate(frameInfo.sampleRate).setLanguage(language).build();
        output.format(format);
    }
    sampleSize = frameInfo.frameSize;
    // In this class a sample is an AC-4 sync frame, but Format#sampleRate specifies the number of
    // PCM audio samples per second.
    sampleDurationUs = C.MICROS_PER_SECOND * frameInfo.sampleCount / format.sampleRate;
}