From db9d3c39a1bccc0a67507234e964e2a9991a4aba Mon Sep 17 00:00:00 2001
From: Selim Mustafaev <selim@fastmail.fm>
Date: Sun, 28 Aug 2016 11:24:15 +0300
Subject: [PATCH] handling some cases of wrong pts/dts

---
 main.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/main.cpp b/main.cpp
index 0830a8e..87300ee 100644
--- a/main.cpp
+++ b/main.cpp
@@ -78,6 +78,7 @@ int main(int argc, char** argv) {
 
 	AVFrame* frame = nullptr;
     int gotPicture = 0, gotPacket = 0, decodedFrames = 1;
+	int64_t oldPts = 0, oldDts = 0;
 	while(true) {
 		AVPacket packet;
 		packet.data = nullptr;
@@ -112,6 +113,20 @@ int main(int argc, char** argv) {
 				if(res < 0) break;
 				if(!gotPacket) continue;
 
+				// try to recover in case of bad pts/dts
+				if(encPacket.pts < encPacket.dts) {
+					encPacket.dts = encPacket.pts;
+				}
+
+				if(encPacket.pts < oldPts)
+					encPacket.pts = oldPts;
+
+				if(encPacket.dts < oldDts)
+					encPacket.dts = oldDts;
+
+				oldPts = encPacket.pts;
+				oldDts = encPacket.dts;
+
 				av_packet_rescale_ts(&encPacket, videoStream->time_base, outVideoStream->time_base);
 
 				res = av_interleaved_write_frame(outFmtCtx, &encPacket);