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API to control target delay in NetEq jitter buffer. NetEq maintains the given delay unless channel conditions require a higher delay.

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TEST=unit-test, manual, trybots.
R=henrik.lundin@webrtc.org, henrika@webrtc.org, mflodman@webrtc.org, mikhal@webrtc.org, stefan@webrtc.org, tina.legrand@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1384005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4087 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
turaj@webrtc.org
2013-05-22 20:39:43 +00:00
parent 561990fd73
commit e46c8d3875
19 changed files with 405 additions and 74 deletions
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20
webrtc/modules/audio_coding/main/interface/audio_coding_module.h
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@ -639,8 +639,9 @@ class AudioCodingModule: public Module {
const uint32_t timestamp = 0) = 0;
///////////////////////////////////////////////////////////////////////////
// int32_t SetMinimumPlayoutDelay()
// Set Minimum playout delay, used for lip-sync.
// int SetMinimumPlayoutDelay()
// Set a minimum for the playout delay, used for lip-sync. NetEq maintains
// such a delay unless channel condition yields to a higher delay.
//
// Input:
// -time_ms : minimum delay in milliseconds.
@ -649,7 +650,15 @@ class AudioCodingModule: public Module {
// -1 if failed to set the delay,
// 0 if the minimum delay is set.
//
virtual int32_t SetMinimumPlayoutDelay(const int32_t time_ms) = 0;
virtual int SetMinimumPlayoutDelay(int time_ms) = 0;
//
// The shortest latency, in milliseconds, required by jitter buffer. This
// is computed based on inter-arrival times and playout mode of NetEq. The
// actual delay is the maximum of least-required-delay and the minimum-delay
// specified by SetMinumumPlayoutDelay() API.
//
virtual int LeastRequiredDelayMs() const = 0;
///////////////////////////////////////////////////////////////////////////
// int32_t RegisterIncomingMessagesCallback()
@ -945,8 +954,9 @@ class AudioCodingModule: public Module {
// Set an initial delay for playout.
// An initial delay yields ACM playout silence until equivalent of |delay_ms|
// audio payload is accumulated in NetEq jitter. Thereafter, ACM pulls audio
// from NetEq in its regular fashion, and the given delay is maintained as
// "minimum playout delay."
// from NetEq in its regular fashion, and the given delay is maintained
// through out the call, unless channel conditions yield to a higher jitter
// buffer delay.
//
// Input:
// -delay_ms : delay in milliseconds.