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Thu, 20 Nov 2025 23:26:25 +0200 (EET) MIME-Version: 1.0 To: ffmpeg-devel@ffmpeg.org Date: Thu, 20 Nov 2025 21:26:25 -0000 Message-ID: <176367398579.59.5387326870003812966@2cb04c0e5124> Message-ID-Hash: JGWUBOUP5UAD5TEERLC5JHRH37F7C6GJ X-Message-ID-Hash: JGWUBOUP5UAD5TEERLC5JHRH37F7C6GJ X-MailFrom: code@ffmpeg.org X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; header-match-ffmpeg-devel.ffmpeg.org-0; header-match-ffmpeg-devel.ffmpeg.org-1; header-match-ffmpeg-devel.ffmpeg.org-2; header-match-ffmpeg-devel.ffmpeg.org-3; emergency; member-moderation X-Mailman-Version: 3.3.10 Precedence: list Reply-To: FFmpeg development discussions and patches Subject: [FFmpeg-devel] [PATCH] avformat/xmv: Handle zero sized packet at end of file (PR #20985) List-Id: FFmpeg development discussions and patches Archived-At: Archived-At: List-Archive: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: GXTX via ffmpeg-devel Cc: GXTX Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Archived-At: List-Archive: List-Post: PR #20985 opened by GXTX URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20985 Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20985.patch Fixes: #20982 This doesn't appear with every XMV. >>From 797d63a4d77ab06dafedb4d76a8393481bcc7b2f Mon Sep 17 00:00:00 2001 From: wutno Date: Thu, 20 Nov 2025 16:19:49 -0500 Subject: [PATCH] avformat/xmv: Handle zero sized packet at end of file --- libavformat/xmv.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libavformat/xmv.c b/libavformat/xmv.c index ed59f7b85b..63ae4a05a7 100644 --- a/libavformat/xmv.c +++ b/libavformat/xmv.c @@ -417,6 +417,12 @@ static int xmv_fetch_new_packet(AVFormatContext *s) /* Seek to it */ xmv->this_packet_offset = xmv->next_packet_offset; if (avio_seek(pb, xmv->this_packet_offset, SEEK_SET) != xmv->this_packet_offset) + /* It's possible the packet we're about to work on has no size. This can + * happen when it's the last packet of the XMV. So, let's check if we're + * at the end of the file again and gracefully close out. + */ + if (xmv->this_packet_offset == xmv->next_packet_offset) + return AVERROR_EOF; return AVERROR(EIO); /* Update the size */ -- 2.49.1 _______________________________________________ ffmpeg-devel mailing list -- ffmpeg-devel@ffmpeg.org To unsubscribe send an email to ffmpeg-devel-leave@ffmpeg.org