Merge "Added more metadata published by the MediaMetaDataRetriever" (e6482914) · Commits · e / os / android_frameworks_av

include/media/mediametadataretriever.h

+6 −0

Original line number	Diff line number	Diff line
		@@ -47,6 +47,12 @@ enum {
		METADATA_KEY_ALBUMARTIST = 13,
		METADATA_KEY_DISC_NUMBER = 14,
		METADATA_KEY_COMPILATION = 15,
		METADATA_KEY_HAS_AUDIO = 16,
		METADATA_KEY_HAS_VIDEO = 17,
		METADATA_KEY_VIDEO_WIDTH = 18,
		METADATA_KEY_VIDEO_HEIGHT = 19,
		METADATA_KEY_BITRATE = 20,

		// Add more here...
		};

media/libstagefright/StagefrightMetadataRetriever.cpp

+49 −0

Original line number	Diff line number	Diff line
		@@ -411,6 +411,12 @@ void StagefrightMetadataRetriever::parseMetaData() {

		mMetaData.add(METADATA_KEY_NUM_TRACKS, String8(tmp));

		bool hasAudio = false;
		bool hasVideo = false;
		int32_t videoWidth = -1;
		int32_t videoHeight = -1;
		int32_t audioBitrate = -1;

		// The overall duration is the duration of the longest track.
		int64_t maxDurationUs = 0;
		for (size_t i = 0; i < numTracks; ++i) {
		@@ -422,12 +428,55 @@ void StagefrightMetadataRetriever::parseMetaData() {
		maxDurationUs = durationUs;
		}
		}

		const char *mime;
		if (trackMeta->findCString(kKeyMIMEType, &mime)) {
		if (!hasAudio && !strncasecmp("audio/", mime, 6)) {
		hasAudio = true;

		if (!trackMeta->findInt32(kKeyBitRate, &audioBitrate)) {
		audioBitrate = -1;
		}
		} else if (!hasVideo && !strncasecmp("video/", mime, 6)) {
		hasVideo = true;

		CHECK(trackMeta->findInt32(kKeyWidth, &videoWidth));
		CHECK(trackMeta->findInt32(kKeyHeight, &videoHeight));
		}
		}
		}

		// The duration value is a string representing the duration in ms.
		sprintf(tmp, "%lld", (maxDurationUs + 500) / 1000);
		mMetaData.add(METADATA_KEY_DURATION, String8(tmp));

		if (hasAudio) {
		mMetaData.add(METADATA_KEY_HAS_AUDIO, String8("yes"));
		}

		if (hasVideo) {
		mMetaData.add(METADATA_KEY_HAS_VIDEO, String8("yes"));

		sprintf(tmp, "%d", videoWidth);
		mMetaData.add(METADATA_KEY_VIDEO_WIDTH, String8(tmp));

		sprintf(tmp, "%d", videoHeight);
		mMetaData.add(METADATA_KEY_VIDEO_HEIGHT, String8(tmp));
		}

		if (numTracks == 1 && hasAudio && audioBitrate >= 0) {
		sprintf(tmp, "%ld", audioBitrate);
		mMetaData.add(METADATA_KEY_BITRATE, String8(tmp));
		} else {
		off64_t sourceSize;
		if (mSource->getSize(&sourceSize) == OK) {
		int64_t avgBitRate = (int64_t)(sourceSize * 8E6 / maxDurationUs);

		sprintf(tmp, "%lld", avgBitRate);
		mMetaData.add(METADATA_KEY_BITRATE, String8(tmp));
		}
		}

		if (numTracks == 1) {
		const char *fileMIME;
		CHECK(meta->findCString(kKeyMIMEType, &fileMIME));