From c840c0bfee6aa9be4e05e957e8d1ee8d9e330f75 Mon Sep 17 00:00:00 2001
From: Kodi Obika <kodiobika@google.com>
Date: Tue, 6 Aug 2019 10:27:09 -0700
Subject: [PATCH] Added trace event to screenrecord

Bug: 135278534
Test: Run Perfetto with "screen recording" enabled and execute
a query for the "first_frame" slice

MergedIn: Ifb984bfb0cdf48c61352e2923de42ce0ca06ace7
Change-Id: I20abf7300e8c46b6e6dc52096db699e95c93297d
---
 cmds/screenrecord/screenrecord.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/cmds/screenrecord/screenrecord.cpp b/cmds/screenrecord/screenrecord.cpp
index 98164fd157..e39f88568c 100644
--- a/cmds/screenrecord/screenrecord.cpp
+++ b/cmds/screenrecord/screenrecord.cpp
@@ -417,6 +417,7 @@ static status_t runEncoder(const sp<MediaCodec>& encoder,
     int64_t endWhenNsec = startWhenNsec + seconds_to_nanoseconds(gTimeLimitSec);
     DisplayInfo mainDpyInfo;
     Vector<int64_t> timestamps;
+    bool firstFrame = true;
 
     assert((rawFp == NULL && muxer != NULL) || (rawFp != NULL && muxer == NULL));
 
@@ -433,6 +434,11 @@ static status_t runEncoder(const sp<MediaCodec>& encoder,
         int64_t ptsUsec;
         uint32_t flags;
 
+        if (firstFrame) {
+            ATRACE_NAME("first_frame");
+            firstFrame = false;
+        }
+
         if (systemTime(CLOCK_MONOTONIC) > endWhenNsec) {
             if (gVerbose) {
                 printf("Time limit reached\n");