[FFmpeg-devel] [PATCH] avfilter: add drmeter audio filter

[Paul B Mahol]

On 3/9/18, Hendrik Leppkes <h.leppkes at gmail.com> wrote:
> On Fri, Mar 9, 2018 at 8:15 PM, Paul B Mahol <onemda at gmail.com> wrote:
>> On 3/9/18, Kyle Swanson <k at ylo.ph> wrote:
>>> Hi,
>>>
>>> On Wed, Mar 7, 2018 at 3:15 AM, Paul B Mahol <onemda at gmail.com> wrote:
>>>
>>>> Signed-off-by: Paul B Mahol <onemda at gmail.com>
>>>> ---
>>>>  doc/filters.texi         |  11 +++
>>>>  libavfilter/Makefile     |   1 +
>>>>  libavfilter/af_drmeter.c | 233 ++++++++++++++++++++++++++++++
>>>> +++++++++++++++++
>>>>  libavfilter/allfilters.c |   1 +
>>>>  4 files changed, 246 insertions(+)
>>>>  create mode 100644 libavfilter/af_drmeter.c
>>>>
>>>
>>> Is this a dynamic range meter? We already have LRA in the ebur128 filter.
>>
>> LRA is different from this one.
>
> Are these values compatible with any otherwise known Dynamic Range
> measurement used in the community?

This is same algo as found in TT-DR,

It is used here:

http://dr.loudness-war.info/