zqz/platform-external-webrtc
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Cleanup WebRTC tracing

Browse Source 
The goal of this change is to:
1. Remove unused tracing events.
2. Organize tracing events to facilitate measurement of end to end latency.

The major change in this CL is to use ASYNC_STEP such that operation
flow can be traced for the same frame.

R=marpan@webrtc.org, pwestin@webrtc.org, turaj@webrtc.org, wu@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1761004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4308 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
hclam@chromium.org
2013-07-08 21:31:18 +00:00
parent e80a934b36
commit 1a7b9b94be
15 changed files with 56 additions and 119 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
webrtc/modules/video_coding/main/source/receiver.cc
View File

@ -123,7 +123,6 @@ VCMEncodedFrame* VCMReceiver::FrameForDecoding(
int64_t& next_render_time_ms,
bool render_timing,
VCMReceiver* dual_receiver) {
TRACE_EVENT0("webrtc", "Recv::FrameForDecoding");
const int64_t start_time_ms = clock_->TimeInMilliseconds();
uint32_t frame_timestamp = 0;
// Exhaust wait time to get a complete frame for decoding.
@ -183,7 +182,6 @@ VCMEncodedFrame* VCMReceiver::FrameForDecoding(
if (!render_timing) {
// Decode frame as close as possible to the render timestamp.
TRACE_EVENT0("webrtc", "FrameForRendering");
const int32_t available_wait_time = max_wait_time_ms -
static_cast<int32_t>(clock_->TimeInMilliseconds() - start_time_ms);
uint16_t new_max_wait_time = static_cast<uint16_t>(
@ -207,6 +205,8 @@ VCMEncodedFrame* VCMReceiver::FrameForDecoding(
return NULL;
}
frame->SetRenderTime(next_render_time_ms);
TRACE_EVENT_ASYNC_STEP1("webrtc", "Video", frame->TimeStamp(),
"SetRenderTS", "render_time", next_render_time_ms);
if (dual_receiver != NULL) {
dual_receiver->UpdateState(*frame);
}