From be208264dd2025f0034d0848b21d2652b164f153 Mon Sep 17 00:00:00 2001
From: Paul Gilbert
Date: Mon, 4 Sep 2017 12:03:34 -0400
Subject: VIDEO: Fix reverse playback right to the very start of the video

---
 video/avi_decoder.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/video/avi_decoder.cpp b/video/avi_decoder.cpp
index ea10b95f5a..7d182935c1 100644
--- a/video/avi_decoder.cpp
+++ b/video/avi_decoder.cpp
@@ -132,7 +132,7 @@ bool AVIDecoder::isSeekable() const {
 const Graphics::Surface *AVIDecoder::decodeNextFrame() {
 	AVIVideoTrack *track = nullptr;
 	bool isReversed = false;
-	int frameNum;
+	int frameNum = 0;
 
 	// Check whether the video is playing in revese
 	for (int idx = _videoTracks.size() - 1; idx >= 0; --idx) {
@@ -155,6 +155,7 @@ const Graphics::Surface *AVIDecoder::decodeNextFrame() {
 		for (int idx = _videoTracks.size() - 1; idx >= 0; --idx) {
 			track = static_cast<AVIVideoTrack *>(_videoTracks[idx].track);
 			track->setCurFrame(frameNum - 1);
+			findNextVideoTrack();
 		}
 	}
 
@@ -1020,7 +1021,7 @@ bool AVIDecoder::AVIVideoTrack::setReverse(bool reverse) {
 
 bool AVIDecoder::AVIVideoTrack::endOfTrack() const {
 	if (_reversed)
-		return _curFrame < 0;
+		return _curFrame < -1;
 
 	return _curFrame >= (getFrameCount() - 1);
 }
-- 
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