Examples with MediaCodecUtil com.google.android.exoplayer2.mediacodec.MediaCodecUtil used on opensource projects

Example 1 with MediaCodecUtil

use of com.google.android.exoplayer2.mediacodec.MediaCodecUtil in project ExoPlayer by google.

the class MediaCodecAudioRenderer method getDecoderInfos.

/**
 * Returns a list of decoders that can decode media in the specified format, in the priority order
 * specified by the {@link MediaCodecSelector}. Note that since the {@link MediaCodecSelector}
 * only has access to {@link Format#sampleMimeType}, the list is not ordered to account for
 * whether each decoder supports the details of the format (e.g., taking into account the format's
 * profile, level, channel count and so on). {@link
 * MediaCodecUtil#getDecoderInfosSortedByFormatSupport} can be used to further sort the list into
 * an order where decoders that fully support the format come first.
 *
 * @param mediaCodecSelector The decoder selector.
 * @param format The {@link Format} for which a decoder is required.
 * @param requiresSecureDecoder Whether a secure decoder is required.
 * @param audioSink The {@link AudioSink} to which audio will be output.
 * @return A list of {@link MediaCodecInfo}s corresponding to decoders. May be empty.
 * @throws DecoderQueryException Thrown if there was an error querying decoders.
 */
private static List<MediaCodecInfo> getDecoderInfos(MediaCodecSelector mediaCodecSelector, Format format, boolean requiresSecureDecoder, AudioSink audioSink) throws DecoderQueryException {
    @Nullable String mimeType = format.sampleMimeType;
    if (mimeType == null) {
        return ImmutableList.of();
    }
    if (audioSink.supportsFormat(format)) {
        // The format is supported directly, so a codec is only needed for decryption.
        @Nullable MediaCodecInfo codecInfo = MediaCodecUtil.getDecryptOnlyDecoderInfo();
        if (codecInfo != null) {
            return ImmutableList.of(codecInfo);
        }
    }
    List<MediaCodecInfo> decoderInfos = mediaCodecSelector.getDecoderInfos(mimeType, requiresSecureDecoder, /* requiresTunnelingDecoder= */
    false);
    @Nullable String alternativeMimeType = MediaCodecUtil.getAlternativeCodecMimeType(format);
    if (alternativeMimeType == null) {
        return ImmutableList.copyOf(decoderInfos);
    }
    List<MediaCodecInfo> alternativeDecoderInfos = mediaCodecSelector.getDecoderInfos(alternativeMimeType, requiresSecureDecoder, /* requiresTunnelingDecoder= */
    false);
    return ImmutableList.<MediaCodecInfo>builder().addAll(decoderInfos).addAll(alternativeDecoderInfos).build();
}