[FFmpeg-devel] [PATCH] avfilter/vf_freezedetect: add filter to detect frozen input

[Marton Balint]

On Sat, 17 Nov 2018, Paul B Mahol wrote:

> On 11/17/18, Marton Balint <cus at passwd.hu> wrote:
>>
>> On Sun, 11 Nov 2018, Paul B Mahol wrote:
>>
>>> On 11/11/18, Marton Balint <cus at passwd.hu> wrote:
>>>> Signed-off-by: Marton Balint <cus at passwd.hu>
>>>> ---
>>>>  Changelog                     |   1 +
>>>>  configure                     |   1 +
>>>>  doc/filters.texi              |  29 +++++
>>>>  libavfilter/Makefile          |   1 +
>>>>  libavfilter/allfilters.c      |   1 +
>>>>  libavfilter/version.h         |   2 +-
>>>>  libavfilter/vf_freezedetect.c | 282
>>>> ++++++++++++++++++++++++++++++++++++++++++
>>>>  7 files changed, 316 insertions(+), 1 deletion(-)
>>>>  create mode 100644 libavfilter/vf_freezedetect.c
>>>>
>>>> diff --git a/Changelog b/Changelog
>>>> index e38a607025..0eba82b477 100644
>>>> --- a/Changelog
>>>> +++ b/Changelog
>>>> @@ -4,6 +4,7 @@ releases are sorted from youngest to oldest.
>>>>  version <next>:
>>>>  - tpad filter
>>>>  - AV1 decoding support through libdav1d
>>>> +- freezedetect filter
>>>>
>>
>> [...]
>>
>>>> +AVFILTER_DEFINE_CLASS(freezedetect);
>>>> +
>>>> +static int query_formats(AVFilterContext *ctx)
>>>> +{
>>>> +    static const enum AVPixelFormat pix_fmts[] = {
>>>> +        AV_PIX_FMT_YUV420P,
>>>> +        AV_PIX_FMT_YUYV422,
>>>> +        AV_PIX_FMT_RGB24,
>>>> +        AV_PIX_FMT_BGR24,
>>>> +        AV_PIX_FMT_YUV422P,
>>>> +        AV_PIX_FMT_YUV444P,
>>>> +        AV_PIX_FMT_YUV410P,
>>>> +        AV_PIX_FMT_YUV411P,
>>>> +        AV_PIX_FMT_GRAY8,
>>>> +        AV_PIX_FMT_YUVJ420P,
>>>> +        AV_PIX_FMT_YUVJ422P,
>>>> +        AV_PIX_FMT_YUVJ444P,
>>>> +        AV_PIX_FMT_UYVY422,
>>>> +        AV_PIX_FMT_NV12,
>>>> +        AV_PIX_FMT_NV21,
>>>> +        AV_PIX_FMT_ARGB,
>>>> +        AV_PIX_FMT_RGBA,
>>>> +        AV_PIX_FMT_ABGR,
>>>> +        AV_PIX_FMT_BGRA,
>>>> +        AV_PIX_FMT_GRAY16,
>>>> +        AV_PIX_FMT_YUV440P,
>>>> +        AV_PIX_FMT_YUVJ440P,
>>>> +        AV_PIX_FMT_YUVA420P,
>>>> +        AV_PIX_FMT_YUV420P16,
>>>> +        AV_PIX_FMT_YUV422P16,
>>>> +        AV_PIX_FMT_YUV444P16,
>>>> +        AV_PIX_FMT_YA8,
>>>> +        AV_PIX_FMT_YUV420P9,
>>>> +        AV_PIX_FMT_YUV420P10,
>>>> +        AV_PIX_FMT_YUV422P10,
>>>> +        AV_PIX_FMT_YUV444P9,
>>>> +        AV_PIX_FMT_YUV444P10,
>>>> +        AV_PIX_FMT_YUV422P9,
>>>> +        AV_PIX_FMT_GBRP,
>>>> +        AV_PIX_FMT_GBRP9,
>>>> +        AV_PIX_FMT_GBRP10,
>>>> +        AV_PIX_FMT_GBRP16,
>>>> +        AV_PIX_FMT_YUVA422P,
>>>> +        AV_PIX_FMT_YUVA444P,
>>>> +        AV_PIX_FMT_YUVA420P9,
>>>> +        AV_PIX_FMT_YUVA422P9,
>>>> +        AV_PIX_FMT_YUVA444P9,
>>>> +        AV_PIX_FMT_YUVA420P10,
>>>> +        AV_PIX_FMT_YUVA422P10,
>>>> +        AV_PIX_FMT_YUVA444P10,
>>>> +        AV_PIX_FMT_YUVA420P16,
>>>> +        AV_PIX_FMT_YUVA422P16,
>>>> +        AV_PIX_FMT_YUVA444P16,
>>>> +        AV_PIX_FMT_NV16,
>>>> +        AV_PIX_FMT_YVYU422,
>>>> +        AV_PIX_FMT_GBRAP,
>>>> +        AV_PIX_FMT_GBRAP16,
>>>> +        AV_PIX_FMT_YUV420P12,
>>>> +        AV_PIX_FMT_YUV420P14,
>>>> +        AV_PIX_FMT_YUV422P12,
>>>> +        AV_PIX_FMT_YUV422P14,
>>>> +        AV_PIX_FMT_YUV444P12,
>>>> +        AV_PIX_FMT_YUV444P14,
>>>> +        AV_PIX_FMT_GBRP12,
>>>> +        AV_PIX_FMT_GBRP14,
>>>> +        AV_PIX_FMT_YUVJ411P,
>>>> +        AV_PIX_FMT_YUV440P10,
>>>> +        AV_PIX_FMT_YUV440P12,
>>>> +        AV_PIX_FMT_GBRAP12,
>>>> +        AV_PIX_FMT_GBRAP10,
>>>> +        AV_PIX_FMT_GRAY12,
>>>> +        AV_PIX_FMT_GRAY10,
>>>> +        AV_PIX_FMT_GRAY9,
>>>> +        AV_PIX_FMT_GRAY14,
>>>> +        AV_PIX_FMT_NONE
>>>
>>> Please make this list more compact, make use of several items per line.
>>
>> Ok. I will apply the patch soon.
>
> You sure that packed and semi-planar formats like nv21 work with filter?

Yes, because every plane they use have continous data and every component 
is calculated equally into the sum of absolute differences.

Regards,
Marton