From: Peter Ross via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Cc: Peter Ross <pross@xvid.org>
Subject: [FFmpeg-devel] Re: Can a GetByteContext have a "sub" context?
Date: Tue, 2 Sep 2025 17:57:36 +1000
Message-ID: <aLajcEn6fQQqAOL3@436df3412bf9621d289a69bf8f875853> (raw)
In-Reply-To: <CAOLZvyFFv65OkL5s2F=7bkUT7fZvijUJcZ3S=v_BNgqyK3PkbA@mail.gmail.com>
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On Tue, Sep 02, 2025 at 08:03:14AM +0200, Manuel Lauss via ffmpeg-devel wrote:
> Hello,
>
> Is it possible to have a "sub" context with a limited byte range for a
> super-context?
> i.e. I read 4 bytes from context c1, these are a length, c2 =
> GetByteContext_from(c1, len) ? Or is "GetByteContext(&c2, c1.buffer,
> len);" enough?
second one is what I do:
bytestream2_init(&c2, c1.buffer, len)
also need to check that that len does not exceed c1 bytes remaining. use bytestream2_get_bytes_left(c1).
-- Peter
(A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B)
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prev parent reply other threads:[~2025-09-02 7:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-02 6:03 [FFmpeg-devel] " Manuel Lauss via ffmpeg-devel
2025-09-02 7:57 ` Peter Ross via ffmpeg-devel [this message]
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