diff options
| -rw-r--r-- | apex/media/framework/java/android/media/MediaParser.java | 60 |
1 files changed, 58 insertions, 2 deletions
diff --git a/apex/media/framework/java/android/media/MediaParser.java b/apex/media/framework/java/android/media/MediaParser.java index 7cbb98e1bb4e..19f578ecfc66 100644 --- a/apex/media/framework/java/android/media/MediaParser.java +++ b/apex/media/framework/java/android/media/MediaParser.java @@ -203,6 +203,15 @@ public final class MediaParser { /** Returned by {@link #getDurationMicros()} when the duration is unknown. */ public static final int UNKNOWN_DURATION = Integer.MIN_VALUE; + /** + * For each {@link #getSeekPoints} call, returns a single {@link SeekPoint} whose {@link + * SeekPoint#timeMicros} matches the requested timestamp, and whose {@link + * SeekPoint#position} is 0. + * + * @hide + */ + public static final SeekMap DUMMY = new SeekMap(new DummyExoPlayerSeekMap()); + private final com.google.android.exoplayer2.extractor.SeekMap mExoPlayerSeekMap; private SeekMap(com.google.android.exoplayer2.extractor.SeekMap exoplayerSeekMap) { @@ -795,6 +804,18 @@ public final class MediaParser { */ public static final String PARAMETER_EAGERLY_EXPOSE_TRACKTYPE = "android.media.mediaparser.eagerlyExposeTrackType"; + /** + * Sets whether a dummy {@link SeekMap} should be exposed before starting extraction. {@code + * boolean} expected. Default value is {@code false}. + * + * <p>For each {@link SeekMap#getSeekPoints} call, the dummy {@link SeekMap} returns a single + * {@link SeekPoint} whose {@link SeekPoint#timeMicros} matches the requested timestamp, and + * whose {@link SeekPoint#position} is 0. + * + * @hide + */ + public static final String PARAMETER_EXPOSE_DUMMY_SEEKMAP = + "android.media.mediaparser.exposeDummySeekMap"; // Private constants. @@ -958,6 +979,7 @@ public final class MediaParser { private boolean mIncludeSupplementalData; private boolean mIgnoreTimestampOffset; private boolean mEagerlyExposeTrackType; + private boolean mExposeDummySeekMap; private String mParserName; private Extractor mExtractor; private ExtractorInput mExtractorInput; @@ -1017,6 +1039,9 @@ public final class MediaParser { if (PARAMETER_EAGERLY_EXPOSE_TRACKTYPE.equals(parameterName)) { mEagerlyExposeTrackType = (boolean) value; } + if (PARAMETER_EXPOSE_DUMMY_SEEKMAP.equals(parameterName)) { + mExposeDummySeekMap = (boolean) value; + } mParserParameters.put(parameterName, value); return this; } @@ -1078,11 +1103,10 @@ public final class MediaParser { } mExoDataReader.mInputReader = seekableInputReader; - // TODO: Apply parameters when creating extractor instances. if (mExtractor == null) { + mPendingExtractorInit = true; if (!mParserName.equals(PARSER_NAME_UNKNOWN)) { mExtractor = createExtractor(mParserName); - mExtractor.init(new ExtractorOutputAdapter()); } else { for (String parserName : mParserNamesPool) { Extractor extractor = createExtractor(parserName); @@ -1107,9 +1131,18 @@ public final class MediaParser { } if (mPendingExtractorInit) { + if (mExposeDummySeekMap) { + // We propagate the dummy seek map before initializing the extractor, in case the + // extractor initialization outputs a seek map. + mOutputConsumer.onSeekMapFound(SeekMap.DUMMY); + } mExtractor.init(new ExtractorOutputAdapter()); mPendingExtractorInit = false; + // We return after initialization to allow clients use any output information before + // starting actual extraction. + return true; } + if (isPendingSeek()) { mExtractor.seek(mPendingSeekPosition, mPendingSeekTimeMicros); removePendingSeek(); @@ -1683,6 +1716,28 @@ public final class MediaParser { } } + private static final class DummyExoPlayerSeekMap + implements com.google.android.exoplayer2.extractor.SeekMap { + + @Override + public boolean isSeekable() { + return true; + } + + @Override + public long getDurationUs() { + return C.TIME_UNSET; + } + + @Override + public SeekPoints getSeekPoints(long timeUs) { + com.google.android.exoplayer2.extractor.SeekPoint seekPoint = + new com.google.android.exoplayer2.extractor.SeekPoint( + timeUs, /* position= */ 0); + return new SeekPoints(seekPoint, seekPoint); + } + } + /** Creates extractor instances. */ private interface ExtractorFactory { @@ -1923,6 +1978,7 @@ public final class MediaParser { expectedTypeByParameterName.put(PARAMETER_INCLUDE_SUPPLEMENTAL_DATA, Boolean.class); expectedTypeByParameterName.put(PARAMETER_IGNORE_TIMESTAMP_OFFSET, Boolean.class); expectedTypeByParameterName.put(PARAMETER_EAGERLY_EXPOSE_TRACKTYPE, Boolean.class); + expectedTypeByParameterName.put(PARAMETER_EXPOSE_DUMMY_SEEKMAP, Boolean.class); EXPECTED_TYPE_BY_PARAMETER_NAME = Collections.unmodifiableMap(expectedTypeByParameterName); } } |