[FFmpeg-devel] [PATCH 1/2] lavfi: remove mp=ilpack filter

Paul B Mahol onemda at gmail.com
Mon Jan 19 15:06:52 CET 2015


On 5/4/13, Stefano Sabatini <stefasab at gmail.com> wrote:
> On date Monday 2013-04-29 10:29:33 +0000, Paul B Mahol encoded:
>> On 4/29/13, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
>> > Paul B Mahol <onemda <at> gmail.com> writes:
>> >
>> >> The filter does not work, asserts here.
>> >
>> > Isn't the only thing missing setting the
>> > correct output pixel format?
>>
>> Science when this filter was broken, and nobody complained?
>>
>> Also its not needed any more as similar funcionality is already
>> available in native filter.
>
> I'm not an user of the filter, so can't say even what is useful
> for. Can someone comment on it?
>
> Is it possible emulate it with the native filters?
>
> From mplayer:
>
>   ilpack=mode
>
>   When interlaced video is stored in YUV 4:2:0 formats, chroma
>   interlacing does not line up properly due to vertical downsampling
>   of the chroma channels.  This filter packs the planar 4:2:0 data
>   into YUY2 (4:2:2) format with the chroma lines in their proper
>   locations, so that in any given scanline, the luma and chroma data
>   both come from the same field.
>                  <mode>
>                       Select the sampling mode.
>                          0: nearest-neighbor sampling, fast but incorrect
>                          1: linear interpolation (default)

Filter still asserts here and so I will remove it in next 24 hours.

scale filter probably can be used instead of ilpack.
> --
> FFmpeg = Fierce Forgiving Majestic Problematic Entertaining Governor
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