Implementation of AudioStream::getTotalPlayTime for FLAC and OGG/Vorbis streams.

svn-id: r32263

2 files changed, 28 insertions, 0 deletions

diff --git a/sound/flac.cpp b/sound/flac.cpp
index 8dc3586142..a43deedcfb 100644
--- a/sound/flac.cpp
+++ b/sound/flac.cpp
@@ -141,6 +141,26 @@ public:
 		return _streaminfo.channels == 0 || (_lastSampleWritten && _sampleCache.bufFill == 0);
 	}
 
+	int32 getTotalPlayTime() const {
+		int32 samples = 0;
+
+		if (!_lastSample) {
+			if (!_streaminfo.total_samples)
+				return AudioStream::kUnknownPlayTime;
+
+			samples = _streaminfo.total_samples - _firstSample;
+		} else {
+			samples = _lastSample - _firstSample - 1;
+		}
+
+		const int32 rate = _streaminfo.sample_rate;
+
+		int32 seconds = samples / rate;
+		int32 milliseconds = (1000 * (samples % rate)) / rate;
+
+		return seconds * 1000 + milliseconds;
+	}
+
 	bool isStreamDecoderReady() const { return getStreamDecoderState() == FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC ; }
 
 protected:
diff --git a/sound/vorbis.cpp b/sound/vorbis.cpp
index a4b0f854e9..971207b0be 100644
--- a/sound/vorbis.cpp
+++ b/sound/vorbis.cpp
@@ -118,6 +118,14 @@ public:
 	bool isStereo() const		{ return _isStereo; }
 	int getRate() const			{ return _rate; }
 
+	int32 getTotalPlayTime() const {
+#ifdef USE_TREMOR
+		return _endTime - _startTime;
+#else
+		return (int32)((_endTime - _startTime) * 1000.0);
+#endif
+	}
+
 protected:
 	void refill();
 };