On 24 October 2017 at 07:26, Paul B Mahol wrote:
> On 9/14/17, Richard Ling wrote:
>> Hi,
>>
>> This patch adds a filter to normalize (contrast stretch) RGB video.
>> Comments welcome.
>>
>> R.
>
> What's status of this?
I created a new patch
OK, trying again. I've worked out how to send to myself without corruption
(I think).
From 590b3bc8e2675c75c2ff7e75f7fc1fbb1e1a8f71 Mon Sep 17 00:00:00 2001
From: Richard Ling
Date: Thu, 16 Nov 2017 23:00:01 +1100
Subject: [PATCH] avfilter: add normalize filter
---
doc/filters
Patch attached.
R.
0001-avfilter-add-normalize-filter.patch
Description: Binary data
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Thanks Moritz.
I'll update and repost a new patch.
I also noticed another error of mine: I hadn't fully updated the examples
in the documentation, after changes to the parameter.
Regards
R.
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Updated patch.
The integer overflow is avoided by limiting smoothing parameter to
MAX_INT/8. It is later multiplied by 6.
Regards
R.
0001-avfilter-add-normalize-filter.patch
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On Nov 21, 2017 10:32 PM, "Moritz Barsnick" wrote:
>
> Nice. I personally appreciate your code comments, as I'm no big filter
> author (yet).
I've never made any contribution to ffmpeg before, so I'm almost certainly
a bad example to follow :-P
But I do like code to be well commented.
Regards
R
Thanks Paul.
Thanks also to all reviewers for your comments! It's very helpful to have
extra sets of eyes to find my bugs.
Moritz is right, there is an unused #define, I will try to find time to
patch. Or maybe Paul can remove it
Regards
R.
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I'm thinking of adding a temporal filter (one that relies on context from
previous frames), and I've realised I'm a bit confused about how they
should work.
Say I open a file with ffplay and let it play up to frame 100. Then I open
the same file with another instance of ffplay and seek directly t
0 Sep 2017, Paul B Mahol wrote:
>
> On 9/10/17, Richard Ling wrote:
>>
>>> I'm thinking of adding a temporal filter (one that relies on context from
>>> previous frames), and I've realised I'm a bit confused about how they
>>> should work.
>&g
Hi,
This patch adds a filter to normalize (contrast stretch) RGB video.
Comments welcome.
R.
From f08f132ecd79718d0ce6fb07f99c84ab5dd52ee4 Mon Sep 17 00:00:00 2001
From: Richard Ling
Date: Thu, 14 Sep 2017 13:18:50 +1000
Subject: [PATCH] avfilter: add normalize filter
---
doc/filters.texi
>
>
> Thanks for the patch. Unfortunately, your mail software mangled it with
> line breaks, it cannot be applied as is. Still, see a few comments
> below.
>
>
I should have posted to myself first to make sure it worked OK.
I will do that before posting another patch to the list.
> +The amount of
How can I determine whether a filter input is VFR or CFR?
static int is_vfr(AVFilterLink *inlink)
{
return ???;
}
If I determine the input is CFR, how do I get the frame rate in FPS?
Is it always the reciprocal of timebase, if not what is the correct
implementation?
static float get_constant
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