Decode entire in-memory file for WebAudio

media/filters/audio_file_reader.h

Index: media/filters/audio_file_reader.h
diff --git a/media/filters/audio_file_reader.h b/media/filters/audio_file_reader.h
index 1e42abd7b018fde25b2d6fce976fa26807de0b63..8bd49d72c1749241f57e841ebe2549035c210a55 100644
--- a/media/filters/audio_file_reader.h
+++ b/media/filters/audio_file_reader.h
@@ -6,6 +6,7 @@
 #define MEDIA_FILTERS_AUDIO_FILE_READER_H_
 
 #include <memory>
+#include <vector>
 
 #include "base/macros.h"
 #include "media/base/audio_codecs.h"
@@ -38,6 +39,10 @@ class MEDIA_EXPORT AudioFileReader {
   bool Open();
   void Close();
 
+  // Returns true if (an estimated) duration of the audio data is
+  // known.  Must be called after Open();
+  bool HasKnownDuration() const;
+
   // After a call to Open(), attempts to fully fill |audio_bus| with decoded
   // audio data.  Any unfilled frames will be zeroed out.
   // |audio_data| must be of the same size as channels().
@@ -45,7 +50,11 @@ class MEDIA_EXPORT AudioFileReader {
   // a nominal range of -1.0 -> +1.0.
   // Returns the number of sample-frames actually read which will always be
   // <= audio_bus->frames()
+#if 0
   int Read(AudioBus* audio_bus);
+#endif
+
+  int Read(std::vector<std::unique_ptr<AudioBus>>& decodedAudioPackets);
 
   // These methods can be called once Open() has been called.
   int channels() const { return channels_; }