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update neteq 4 to facilitate NACK

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BUG=
R=turaj@webrtc.org, turajs@google.com

Review URL: https://webrtc-codereview.appspot.com/2008004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4637 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
minyue@webrtc.org
2013-08-29 00:58:14 +00:00
parent 8ae641edfb
commit d7301775f5
3 changed files with 33 additions and 3 deletions
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14
webrtc/modules/audio_coding/neteq4/neteq_impl.h
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@ -167,6 +167,10 @@ class NetEqImpl : public webrtc::NetEq {
int* current_memory_size_bytes,
int* max_memory_size_bytes) const;
// Get sequence number and timestamp of the latest RTP.
// This method is to facilitate NACK.
virtual int DecodedRtpInfo(int* sequence_number, uint32_t* timestamp);
private:
static const int kOutputSizeMs = 10;
static const int kMaxFrameSize = 2880; // 60 ms @ 48 kHz.
@ -318,6 +322,16 @@ class NetEqImpl : public webrtc::NetEq {
int decoder_error_code_;
CriticalSectionWrapper* crit_sect_;
// These values are used by NACK module to estimate time-to-play of
// a missing packet. Occasionally, NetEq might decide to decode more
// than one packet. Therefore, these values store sequence number and
// timestamp of the first packet pulled from the packet buffer. In
// such cases, these values do not exactly represent the sequence number
// or timestamp associated with a 10ms audio pulled from NetEq. NACK
// module is designed to compensate for this.
int decoded_packet_sequence_number_;
uint32_t decoded_packet_timestamp_;
DISALLOW_COPY_AND_ASSIGN(NetEqImpl);
};