[FFmpeg-cvslog] GOL-1361: Remove invalid CTTS sample_offset check

[ekir]

ffmpeg | branch: master | ekir <ekir at spotify.com> | Tue Apr 18 17:31:43 2023 +0200| [da5353cf05bcbe2fc47e69321178a2f7ae64a4f3] | committer: Tomas Härdin

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=da5353cf05bcbe2fc47e69321178a2f7ae64a4f3
---

 libavformat/mov.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 15c840d164..ee44b10435 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -3703,13 +3703,6 @@ 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);
     }