am 08e42967: Merge "Add support for retrieving location information in mp4/3gpp files" into ics-mr1 (510180f1) · Commits · e / os / android_frameworks_base

include/media/mediametadataretriever.h

+1 −0

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		@@ -54,6 +54,7 @@ enum {
		METADATA_KEY_BITRATE = 20,
		METADATA_KEY_TIMED_TEXT_LANGUAGES = 21,
		METADATA_KEY_IS_DRM = 22,
		METADATA_KEY_LOCATION = 23,

		// Add more here...
		};

+1 −0

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		@@ -85,6 +85,7 @@ enum {
		kKeyDate = 'date', // cstring
		kKeyWriter = 'writ', // cstring
		kKeyCompilation = 'cpil', // cstring
		kKeyLocation = 'loc ', // cstring
		kKeyTimeScale = 'tmsl', // int32_t

		// video profile and level

+8 −0

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		@@ -458,5 +458,13 @@ public class MediaMetadataRetriever
		* @hide
		*/
		public static final int METADATA_KEY_IS_DRM = 22;
		/**
		* This key retrieves the location information, if available.
		* The location should be specified according to ISO-6709 standard, under
		* a mp4/3gp box "@xyz". Location with longitude of -90 degrees and latitude
		* of 180 degrees will be retrieved as "-90.0000+180.0000", for instance.
		* @hide
		*/
		public static final int METADATA_KEY_LOCATION = 23;
		// Add more here...
		}

+35 −0

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		@@ -1136,6 +1136,41 @@ status_t MPEG4Extractor::parseChunk(off64_t *offset, int depth) {
		break;
		}

		// @xyz
		case FOURCC('\xA9', 'x', 'y', 'z'):
		{
		// Best case the total data length inside "@xyz" box
		// would be 8, for instance "@xyz" + "\x00\x04\x15\xc7" + "0+0/",
		// where "\x00\x04" is the text string length with value = 4,
		// "\0x15\xc7" is the language code = en, and "0+0" is a
		// location (string) value with longitude = 0 and latitude = 0.
		if (chunk_data_size < 8) {
		return ERROR_MALFORMED;
		}

		// Worst case the location string length would be 18,
		// for instance +90.0000-180.0000, without the trailing "/" and
		// the string length + language code.
		char buffer[18];

		// Substracting 5 from the data size is because the text string length +
		// language code takes 4 bytes, and the trailing slash "/" takes 1 byte.
		off64_t location_length = chunk_data_size - 5;
		if (location_length >= (off64_t) sizeof(buffer)) {
		return ERROR_MALFORMED;
		}

		if (mDataSource->readAt(
		data_offset + 4, buffer, location_length) < location_length) {
		return ERROR_IO;
		}

		buffer[location_length] = '\0';
		mFileMetaData->setCString(kKeyLocation, buffer);
		*offset += chunk_size;
		break;
		}

		case FOURCC('e', 's', 'd', 's'):
		{
		if (chunk_data_size < 4) {

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		@@ -418,6 +418,7 @@ void StagefrightMetadataRetriever::parseMetaData() {
		{ kKeyYear, METADATA_KEY_YEAR },
		{ kKeyWriter, METADATA_KEY_WRITER },
		{ kKeyCompilation, METADATA_KEY_COMPILATION },
		{ kKeyLocation, METADATA_KEY_LOCATION },
		};
		static const size_t kNumMapEntries = sizeof(kMap) / sizeof(kMap[0]);