Ndk extractor: add cached duration, file format and sample size API (30e3c7d2) · Commits · e / os / android_frameworks_av

media/ndk/NdkMediaExtractor.cpp

+26 −1

Original line number	Diff line number	Diff line
		@@ -51,7 +51,6 @@ static media_status_t translate_error(status_t err) {
		struct AMediaExtractor {
		sp<NuMediaExtractor> mImpl;
		sp<ABuffer> mPsshBuf;

		};

		extern "C" {
		@@ -126,6 +125,13 @@ media_status_t AMediaExtractor_setDataSourceCustom(AMediaExtractor* mData, AMedi
		return translate_error(mData->mImpl->setDataSource(new NdkDataSource(src)));
		}

		EXPORT
		AMediaFormat* AMediaExtractor_getFileFormat(AMediaExtractor *mData) {
		sp<AMessage> format;
		mData->mImpl->getFileFormat(&format);
		return AMediaFormat_fromMsg(&format);
		}

		EXPORT
		size_t AMediaExtractor_getTrackCount(AMediaExtractor *mData) {
		return mData->mImpl->countTracks();
		@@ -187,6 +193,16 @@ ssize_t AMediaExtractor_readSampleData(AMediaExtractor mData, uint8_t buffer,
		return -1;
		}

		EXPORT
		ssize_t AMediaExtractor_getSampleSize(AMediaExtractor *mData) {
		size_t sampleSize;
		status_t err = mData->mImpl->getSampleSize(&sampleSize);
		if (err != OK) {
		return -1;
		}
		return sampleSize;
		}

		EXPORT
		uint32_t AMediaExtractor_getSampleFlags(AMediaExtractor *mData) {
		int sampleFlags = 0;
		@@ -385,6 +401,15 @@ AMediaCodecCryptoInfo AMediaExtractor_getSampleCryptoInfo(AMediaExtractor ex)
		(size_t*) crypteddata);
		}

		EXPORT
		int64_t AMediaExtractor_getCachedDuration(AMediaExtractor *ex) {
		bool eos;
		int64_t durationUs;
		if (ex->mImpl->getCachedDuration(&durationUs, &eos)) {
		return durationUs;
		}
		return -1;
		}

		} // extern "C"

media/ndk/include/media/NdkMediaExtractor.h

+38 −1

Original line number	Diff line number	Diff line
		@@ -162,12 +162,49 @@ PsshInfo* AMediaExtractor_getPsshInfo(AMediaExtractor*);

		AMediaCodecCryptoInfo AMediaExtractor_getSampleCryptoInfo(AMediaExtractor );


		enum {
		AMEDIAEXTRACTOR_SAMPLE_FLAG_SYNC = 1,
		AMEDIAEXTRACTOR_SAMPLE_FLAG_ENCRYPTED = 2,
		};

		#if __ANDROID_API__ >= 28

		/**
		* Returns the format of the extractor. The caller must free the returned format
		* using AMediaFormat_delete(format).
		*
		* This function will always return a format; however, the format could be empty
		* (no key-value pairs) if the media container does not provide format information.
		*/
		AMediaFormat* AMediaExtractor_getFileFormat(AMediaExtractor*);

		/**
		* Returns the size of the current sample in bytes, or -1 when no samples are
		* available (end of stream). This API can be used in in conjunction with
		* AMediaExtractor_readSampleData:
		*
		* ssize_t sampleSize = AMediaExtractor_getSampleSize(ex);
		* uint8_t *buf = new uint8_t[sampleSize];
		* AMediaExtractor_readSampleData(ex, buf, sampleSize);
		*
		*/
		ssize_t AMediaExtractor_getSampleSize(AMediaExtractor*);

		/**
		* Returns the duration of cached media samples downloaded from a network data source
		* (AMediaExtractor_setDataSource with a "http(s)" URI) in microseconds.
		*
		* This information is calculated using total bitrate; if total bitrate is not in the
		* media container it is calculated using total duration and file size.
		*
		* Returns -1 when the extractor is not reading from a network data source, or when the
		* cached duration cannot be calculated (bitrate, duration, and file size information
		* not available).
		*/
		int64_t AMediaExtractor_getCachedDuration(AMediaExtractor *);

		#endif /* __ANDROID_API__ >= 28 */

		#endif /* __ANDROID_API__ >= 21 */

		__END_DECLS

media/ndk/libmediandk.map.txt

+3 −0

Original line number	Diff line number	Diff line
		@@ -153,9 +153,12 @@ LIBMEDIANDK {
		AMediaDrm_verify;
		AMediaExtractor_advance;
		AMediaExtractor_delete;
		AMediaExtractor_getCachedDuration; # introduced=28
		AMediaExtractor_getFileFormat; # introduced=28
		AMediaExtractor_getPsshInfo;
		AMediaExtractor_getSampleCryptoInfo;
		AMediaExtractor_getSampleFlags;
		AMediaExtractor_getSampleSize; # introduced=28
		AMediaExtractor_getSampleTime;
		AMediaExtractor_getSampleTrackIndex;
		AMediaExtractor_getTrackCount;