From: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
To: ffmpeg-devel@ffmpeg.org
Subject: Re: [FFmpeg-devel] [PATCH v2 1/3] avutil/dict: add av_dict_pop
Date: Fri, 20 Oct 2023 16:00:45 +0200
Message-ID: <AS8P250MB0744A47D5013161B98E0DA978FDBA@AS8P250MB0744.EURP250.PROD.OUTLOOK.COM> (raw)
In-Reply-To: <169778989751.30698.15022276759252509666@lain.khirnov.net>
Anton Khirnov:
> Quoting Andreas Rheinhardt (2023-07-03 20:02:25)
>> Marvin Scholz:
>>> I honestly can't think of a sensible API design for this,
>>> if you have any idea feel free to share.
>>>
>>
>> The only way I can think of that allows this is for the user to pass a
>> pointer to a (const) AVDictionaryEntry, namely the entry that the user
>> wishes to pop. This is of course cumbersome, because it would be two
>> function calls.
>
> We could start guaranteeing that entries with the same key are always
> returned in insertion order. Now that I think of it there's some code in
> ffmpeg CLI that relies on that.
>
IIRC this is not true correctly, because removing an entry changes the
order of the remaining entries (we don't memmove the remaining entries
into the new position; instead we move the last entry to the now vacant
slot).
- Andreas
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next prev parent reply other threads:[~2023-10-20 13:59 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-01 11:44 [FFmpeg-devel] [PATCH " Marvin Scholz
2023-05-01 11:44 ` [FFmpeg-devel] [PATCH 2/3] avformat/tee: use av_dict_pop Marvin Scholz
2023-06-25 12:07 ` "zhilizhao(赵志立)"
2023-05-01 11:44 ` [FFmpeg-devel] [PATCH 3/3] avutil/dict: constify av_dict_get return Marvin Scholz
2023-06-05 10:05 ` Anton Khirnov
2023-05-21 23:52 ` [FFmpeg-devel] [PATCH 1/3] avutil/dict: add av_dict_pop Stefano Sabatini
2023-05-22 9:23 ` Marvin Scholz
2023-05-26 6:05 ` Stefano Sabatini
2023-05-26 9:11 ` Marvin Scholz
2023-05-26 20:02 ` Michael Niedermayer
2023-05-26 20:51 ` Marvin Scholz
2023-05-26 20:06 ` James Almer
2023-06-04 14:25 ` Stefano Sabatini
2023-06-04 14:34 ` Marvin Scholz
2023-06-05 8:08 ` Stefano Sabatini
2023-06-05 10:09 ` Anton Khirnov
2023-06-05 10:04 ` Anton Khirnov
2023-06-25 10:49 ` [FFmpeg-devel] [PATCH v2 " Marvin Scholz
2023-06-25 10:49 ` [FFmpeg-devel] [PATCH v2 2/3] avformat/tee: use av_dict_pop Marvin Scholz
2023-07-02 8:47 ` Stefano Sabatini
2023-06-25 10:49 ` [FFmpeg-devel] [PATCH v2 3/3] avutil/dict: constify av_dict_get return Marvin Scholz
2023-07-02 9:06 ` Stefano Sabatini
2023-07-02 8:43 ` [FFmpeg-devel] [PATCH v2 1/3] avutil/dict: add av_dict_pop Stefano Sabatini
2023-07-02 11:49 ` Marvin Scholz
2023-07-03 0:18 ` Andreas Rheinhardt
2023-07-03 9:11 ` Marvin Scholz
2023-07-03 18:02 ` Andreas Rheinhardt
2023-07-03 22:41 ` Marvin Scholz
2023-10-20 8:18 ` Anton Khirnov
2023-10-20 14:00 ` Andreas Rheinhardt [this message]
2023-10-20 14:33 ` Anton Khirnov
2023-10-20 15:42 ` Andreas Rheinhardt
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