Add Dolby Vision branding info into MPEG-4 ftyp box (ce22e863) · Commits · e / os / android_frameworks_av

media/libstagefright/MPEG4Writer.cpp

+9 −0

Original line number	Diff line number	Diff line
		@@ -567,6 +567,7 @@ void MPEG4Writer::initInternal(int fd, bool isFirstSession) {
		mDone = false;
		mThread = 0;
		mDriftTimeUs = 0;
		mHasDolbyVision = false;

		// Following variables only need to be set for the first recording session.
		// And they will stay the same for all the recording sessions.
		@@ -714,6 +715,7 @@ status_t MPEG4Writer::addSource(const sp<MediaSource> &source) {
		// So we let the creation of the new track now and
		// assign FourCC codes later using getDoviFourCC()
		ALOGV("Add source mime '%s'", mime);
		mHasDolbyVision = true;
		} else if (Track::getFourCCForMime(mime) == NULL) {
		ALOGE("Unsupported mime '%s'", mime);
		return ERROR_UNSUPPORTED;
		@@ -1576,6 +1578,13 @@ void MPEG4Writer::writeFtypBox(MetaData *param) {
		break;
		}
		}
		// The brand ‘dby1’ should be used in the compatible_brands field to indicate that the file
		// is compliant with all Dolby Extensions. For details, refer to
		// https://professional.dolby.com/siteassets/content-creation/dolby-vision-for-content-creators/dolby_vision_bitstreams_within_the_iso_base_media_file_format_dec2017.pdf
		// Chapter 7, Dolby Vision Files.
		if (fileType == OUTPUT_FORMAT_MPEG_4 && mHasDolbyVision) {
		writeFourcc("dby1");
		}
		}

		endBox();

+2 −0

Original line number	Diff line number	Diff line
		@@ -241,6 +241,8 @@ private:
		std::map<uint32_t, ItemInfo> mItems;
		Vector<ItemProperty> mProperties;

		bool mHasDolbyVision;

		// Writer thread handling
		status_t startWriterThread();
		status_t stopWriterThread();