Add AAC codec specific data for MSE on android

media/mp4/aac.cc

Index: media/mp4/aac.cc
diff --git a/media/mp4/aac.cc b/media/mp4/aac.cc
index f92dd2feb928b9fc69cf1e9c6337c1bb19f513dd..7c1c613f3387e449e341ecc0fcf00656e920ae49 100644
--- a/media/mp4/aac.cc
+++ b/media/mp4/aac.cc
@@ -189,6 +189,15 @@ bool AAC::ConvertEsdsToADTS(std::vector<uint8>* buffer) const {
   return true;
 }
 
+#if defined(OS_ANDROID)
+std::vector<uint8> AAC::GetCodecSpecificData() const {
+  std::vector<uint8> csd;

[acolwell GONE FROM CHROMIUM, 2013/05/29 22:37:25]

I don't believe this is sufficient for all cases. I think you really should just
store a copy of the vector passed to Parse() and return that.

[qinmin, 2013/05/30 03:07:55]

Done.

+  csd.push_back(profile_ << 3 | frequency_index_ >> 1);
+  csd.push_back((frequency_index_ & 0x01) << 7 | channel_config_ << 3);
+  return csd;
+}
+#endif
+
 // Currently this function only support GASpecificConfig defined in
 // ISO 14496 Part 3 Table 4.1 - Syntax of GASpecificConfig()
 bool AAC::SkipDecoderGASpecificConfig(BitReader* bit_reader) const {