[FFmpeg-devel] [PATCH 2/3] idet improvements: add reset_count feature

[Kevin Mitchell]

Ok, changed to half life.

On Sat, Nov 1, 2014 at 10:52 AM, Michael Niedermayer <michaelni at gmx.at> wrote:
> On Sat, Nov 01, 2014 at 07:08:53AM -0700, Kevin Mitchell wrote:
>>
>
>>  doc/filters.texi      |    7 +++++++
>>  libavfilter/version.h |    2 +-
>>  libavfilter/vf_idet.c |   45 +++++++++++++++++++++++++++++++++------------
>>  libavfilter/vf_idet.h |    2 ++
>>  4 files changed, 43 insertions(+), 13 deletions(-)
>> 5d2c485705ed33022dda83da39bd9f1fc28a97e5  0002-avfilter-vf_idet-add-a-reset_count-option-like-cropd.patch
>> From 2ac0c4b6bab752c92ffa615c028cd4582441f680 Mon Sep 17 00:00:00 2001
>> From: Kevin Mitchell <kevmitch at gmail.com>
>> Date: Sat, 1 Nov 2014 05:38:35 -0700
>> Subject: [PATCH 2/3] avfilter/vf_idet: add a "reset_count" option like
>>  cropdetect
>>
>> This can be useful for videos in which the interlacing pattern changes.
>>
>> Also log the total number of frames as metadata and with avlog.
>> ---
>>  doc/filters.texi      |  7 +++++++
>>  libavfilter/version.h |  2 +-
>>  libavfilter/vf_idet.c | 45 +++++++++++++++++++++++++++++++++------------
>>  libavfilter/vf_idet.h |  2 ++
>>  4 files changed, 43 insertions(+), 13 deletions(-)
>>
>> diff --git a/doc/filters.texi b/doc/filters.texi
>> index 33f842b..2896978 100644
>> --- a/doc/filters.texi
>> +++ b/doc/filters.texi
>> @@ -5583,6 +5583,9 @@ Multiple frame detection incorporates the classification history of previous fra
>>  The filter will log these metadata values:
>>
>>  @table @option
>> + at item frames_total
>> +Total number of frames considered in current statistics.
>> +
>>  @item single.current_frame
>>  Detected type of current frame using single-frame detection. One of:
>>  ``tff'' (top field first), ``bff'' (bottom field first),
>> @@ -5625,6 +5628,10 @@ The filter accepts the following options:
>>  Set interlacing threshold.
>>  @item prog_thres
>>  Set progressive threshold.
>> + at item reset_count
>> +Number of frames after which idet will reset all previously collected
>> +statistics. The current statistics are logged before being
>> +destroyed. The default of 0 indicates 'never reset'.
>>  @end table
>
> some kind of FIR or IIR filtering/windowing of the per frame data is
> probably better than sharply discarding data at data independant
> intervalls
>
>
> [...]
>
> --
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
>
> Why not whip the teacher when the pupil misbehaves? -- Diogenes of Sinope
>
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