From cd93b706121bc645f6aac5d35740c1b2d9cea3a9 Mon Sep 17 00:00:00 2001
From: aler9 <46489434+aler9@users.noreply.github.com>
Date: Fri, 3 Jun 2022 13:34:11 +0200
Subject: [PATCH] hls muxer: do not use EXT-X-GAP with fmp4 variant

---
 internal/hls/muxer_variant_fmp4_playlist.go | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/internal/hls/muxer_variant_fmp4_playlist.go b/internal/hls/muxer_variant_fmp4_playlist.go
index fa72edf3..f0ae29f2 100644
--- a/internal/hls/muxer_variant_fmp4_playlist.go
+++ b/internal/hls/muxer_variant_fmp4_playlist.go
@@ -116,7 +116,10 @@ func (p *muxerVariantFMP4Playlist) close() {
 }
 
 func (p *muxerVariantFMP4Playlist) hasContent() bool {
-	return len(p.segments) > 0
+	if p.lowLatency {
+		return len(p.segments) >= 1
+	}
+	return len(p.segments) >= 2
 }
 
 func (p *muxerVariantFMP4Playlist) hasPart(segmentID uint64, partID uint64) bool {
@@ -438,7 +441,7 @@ func (p *muxerVariantFMP4Playlist) onSegmentFinalized(segment *muxerVariantFMP4S
 		defer p.mutex.Unlock()
 
 		// create initial gap
-		if len(p.segments) == 0 {
+		if p.lowLatency && len(p.segments) == 0 {
 			for i := 0; i < p.segmentCount; i++ {
 				p.segments = append(p.segments, &muxerVariantFMP4Gap{
 					renderedDuration: segment.renderedDuration,