From 378bcd1a5393a50c2b49735034e5dde976e79d88 Mon Sep 17 00:00:00 2001
From: Martin Pecka <peckama2@fel.cvut.cz>
Date: Wed, 11 Nov 2020 17:12:38 +0100
Subject: [PATCH] Do not skip the very first frame in case the first timestamp
 should really be zero.

Signed-off-by: Martin Pecka <peckama2@fel.cvut.cz>
---
 av/src/VideoEncoder.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/av/src/VideoEncoder.cc b/av/src/VideoEncoder.cc
index ef3cfd7e..9660cdb4 100644
--- a/av/src/VideoEncoder.cc
+++ b/av/src/VideoEncoder.cc
@@ -618,7 +618,9 @@ bool VideoEncoder::AddFrame(const unsigned char *_frame,
   auto dt = _timestamp - this->dataPtr->timePrev;
 
   // Skip frames that arrive faster than the video's fps
-  if (dt < std::chrono::duration<double>(1.0/this->dataPtr->fps))
+  double period = 1.0/this->dataPtr->fps;
+  if (this->dataPtr->frameCount > 0u &&
+      dt < std::chrono::duration<double>(period))
     return false;
 
   this->dataPtr->timePrev = _timestamp;