From 52e33126e5d33bd3adf6fce027965396e84c6506 Mon Sep 17 00:00:00 2001
From: Asd-g <65298684+Asd-g@users.noreply.github.com>
Date: Tue, 31 Dec 2024 03:55:56 +0200
Subject: [PATCH] Revert the dts seeking logic for VC-1 (8d6bf98)

---
 common/lwlibav_video.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/common/lwlibav_video.c b/common/lwlibav_video.c
index c036539c..5618381d 100644
--- a/common/lwlibav_video.c
+++ b/common/lwlibav_video.c
@@ -449,8 +449,9 @@ static uint32_t correct_current_frame_number
     // earlier frame.
     // Therefore, we should not just give up when dts == AV_NOPTS_VALUE, and we have to also check some
     // others fields, especially when lw_seek_flags is more than just SEEK_DTS_BASED.
-    if( (pkt->dts == AV_NOPTS_VALUE && ((vdhp->lw_seek_flags & ~SEEK_DTS_BASED) == 0))
-            || MATCH_DTS( p ) || MATCH_POS( p ) )
+    int undef_timestamp = (vdhp->ctx->codec_id == AV_CODEC_ID_VC1) ? pkt->dts == AV_NOPTS_VALUE :
+        (pkt->dts == AV_NOPTS_VALUE && ((vdhp->lw_seek_flags & ~SEEK_DTS_BASED) == 0));
+    if( undef_timestamp || MATCH_DTS( p ) || MATCH_POS( p ) )
         return i;
     if( pkt->dts > info[p].dts )
     {