From 8c105c5953c494402749eb27d2eb6a7a2393f855 Mon Sep 17 00:00:00 2001
From: ekir <ekir@spotify.com>
Date: Tue, 18 Apr 2023 17:31:43 +0200
Subject: [PATCH 6/8] GOL-1361: Remove invalid CTTS sample_offset check

We checked in this places:
* In 8.6.1.3 of ISO/IEC 14496-12 about the CTTS box
* In Apples MOV spec: https://developer.apple.com/library/archive/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-SW19
---
 libavformat/mov.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 2c8be51063..89bfb52d2e 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -3697,13 +3697,6 @@ static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         av_log(c->fc, AV_LOG_TRACE, "count=%d, duration=%d\n",
                 count, duration);
 
-        if (FFNABS(duration) < -(1<<28) && i+2<entries) {
-            av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
-            av_freep(&sc->ctts_data);
-            sc->ctts_count = 0;
-            return 0;
-        }
-
         if (i+2<entries)
             mov_update_dts_shift(sc, duration, c->fc);
     }
-- 
2.39.5