Examples with DecoderReuseEvaluation androidx.media3.exoplayer.DecoderReuseEvaluation used on opensource projects

Example 21 with DecoderReuseEvaluation

use of androidx.media3.exoplayer.DecoderReuseEvaluation in project media by androidx.

the class MediaCodecRenderer method onInputFormatChanged.

/**
 * Called when a new {@link Format} is read from the upstream {@link MediaPeriod}.
 *
 * @param formatHolder A {@link FormatHolder} that holds the new {@link Format}.
 * @throws ExoPlaybackException If an error occurs re-initializing the {@link MediaCodec}.
 * @return The result of the evaluation to determine whether the existing decoder instance can be
 *     reused for the new format, or {@code null} if the renderer did not have a decoder.
 */
@CallSuper
@Nullable
protected DecoderReuseEvaluation onInputFormatChanged(FormatHolder formatHolder) throws ExoPlaybackException {
    waitingForFirstSampleInFormat = true;
    Format newFormat = checkNotNull(formatHolder.format);
    if (newFormat.sampleMimeType == null) {
        throw createRendererException(new IllegalArgumentException(), newFormat, PlaybackException.ERROR_CODE_DECODING_FORMAT_UNSUPPORTED);
    }
    setSourceDrmSession(formatHolder.drmSession);
    inputFormat = newFormat;
    if (bypassEnabled) {
        bypassDrainAndReinitialize = true;
        // Need to drain batch buffer first.
        return null;
    }
    if (codec == null) {
        availableCodecInfos = null;
        maybeInitCodecOrBypass();
        return null;
    }
    // We have an existing codec that we may need to reconfigure, re-initialize, or release to
    // switch to bypass. If the existing codec instance is kept then its operating rate and DRM
    // session may need to be updated.
    // Copy the current codec and codecInfo to local variables so they remain accessible if the
    // member variables are updated during the logic below.
    MediaCodecAdapter codec = this.codec;
    MediaCodecInfo codecInfo = this.codecInfo;
    Format oldFormat = codecInputFormat;
    if (drmNeedsCodecReinitialization(codecInfo, newFormat, codecDrmSession, sourceDrmSession)) {
        drainAndReinitializeCodec();
        return new DecoderReuseEvaluation(codecInfo.name, oldFormat, newFormat, REUSE_RESULT_NO, DISCARD_REASON_DRM_SESSION_CHANGED);
    }
    boolean drainAndUpdateCodecDrmSession = sourceDrmSession != codecDrmSession;
    Assertions.checkState(!drainAndUpdateCodecDrmSession || Util.SDK_INT >= 23);
    DecoderReuseEvaluation evaluation = canReuseCodec(codecInfo, oldFormat, newFormat);
    @DecoderDiscardReasons int overridingDiscardReasons = 0;
    switch(evaluation.result) {
        case REUSE_RESULT_NO:
            drainAndReinitializeCodec();
            break;
        case REUSE_RESULT_YES_WITH_FLUSH:
            if (!updateCodecOperatingRate(newFormat)) {
                overridingDiscardReasons |= DISCARD_REASON_OPERATING_RATE_CHANGED;
            } else {
                codecInputFormat = newFormat;
                if (drainAndUpdateCodecDrmSession) {
                    if (!drainAndUpdateCodecDrmSessionV23()) {
                        overridingDiscardReasons |= DISCARD_REASON_WORKAROUND;
                    }
                } else if (!drainAndFlushCodec()) {
                    overridingDiscardReasons |= DISCARD_REASON_WORKAROUND;
                }
            }
            break;
        case REUSE_RESULT_YES_WITH_RECONFIGURATION:
            if (!updateCodecOperatingRate(newFormat)) {
                overridingDiscardReasons |= DISCARD_REASON_OPERATING_RATE_CHANGED;
            } else {
                codecReconfigured = true;
                codecReconfigurationState = RECONFIGURATION_STATE_WRITE_PENDING;
                codecNeedsAdaptationWorkaroundBuffer = codecAdaptationWorkaroundMode == ADAPTATION_WORKAROUND_MODE_ALWAYS || (codecAdaptationWorkaroundMode == ADAPTATION_WORKAROUND_MODE_SAME_RESOLUTION && newFormat.width == oldFormat.width && newFormat.height == oldFormat.height);
                codecInputFormat = newFormat;
                if (drainAndUpdateCodecDrmSession && !drainAndUpdateCodecDrmSessionV23()) {
                    overridingDiscardReasons |= DISCARD_REASON_WORKAROUND;
                }
            }
            break;
        case REUSE_RESULT_YES_WITHOUT_RECONFIGURATION:
            if (!updateCodecOperatingRate(newFormat)) {
                overridingDiscardReasons |= DISCARD_REASON_OPERATING_RATE_CHANGED;
            } else {
                codecInputFormat = newFormat;
                if (drainAndUpdateCodecDrmSession && !drainAndUpdateCodecDrmSessionV23()) {
                    overridingDiscardReasons |= DISCARD_REASON_WORKAROUND;
                }
            }
            break;
        default:
            // Never happens.
            throw new IllegalStateException();
    }
    if (evaluation.result != REUSE_RESULT_NO && (this.codec != codec || codecDrainAction == DRAIN_ACTION_REINITIALIZE)) {
        // The reasons are indicated by overridingDiscardReasons.
        return new DecoderReuseEvaluation(codecInfo.name, oldFormat, newFormat, REUSE_RESULT_NO, overridingDiscardReasons);
    }
    return evaluation;
}