From: "Tomas Härdin" <git@haerdin.se>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH] avformat/mxfdec: Check index_duration
Date: Mon, 26 Dec 2022 11:32:48 +0100
Message-ID: <1c82e874dde362f5a45c77fbb265ff600a895436.camel@haerdin.se> (raw)
In-Reply-To: <20221224225034.449-1-michael@niedermayer.cc>
lör 2022-12-24 klockan 23:50 +0100 skrev Michael Niedermayer:
>
> index_table->nb_ptses += s->index_duration;
> + // If index_duration is substantially larger than
> nb_index_entries then this algorithm which
> + // allocates index_duration elements is a bad idea. All
> files i tried have it equal
> + if (s->index_duration > 10LL * s->nb_index_entries)
> + return AVERROR_PATCHWELCOME;
I was going to say this can overflow but the 10LL ensures it can't. So
looks OK.
/Tomas
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next prev parent reply other threads:[~2022-12-26 10:32 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-24 22:50 Michael Niedermayer
2022-12-26 10:32 ` Tomas Härdin [this message]
2022-12-26 21:54 ` Michael Niedermayer
2022-12-27 18:05 ` Marton Balint
2022-12-27 21:49 ` Michael Niedermayer
2022-12-27 22:32 ` Marton Balint
2022-12-28 2:26 ` Marton Balint
2022-12-28 3:19 ` [FFmpeg-devel] [PATCH 1/3] avformat/mxfdec: check index entry array size Marton Balint
2022-12-28 3:19 ` [FFmpeg-devel] [PATCH 2/3] avformat/mxfdec: support Avid files with an extra index entry Marton Balint
2022-12-28 3:19 ` [FFmpeg-devel] [PATCH 3/3] avformat/mxfdec: check number of index table entires more strictly Marton Balint
2023-01-22 0:05 ` [FFmpeg-devel] [PATCH] avformat/mxfdec: Check index_duration Marton Balint
2023-01-29 11:15 ` Marton Balint
2022-12-27 22:35 ` Tomas Härdin
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