[FFmpeg-devel] [Bulk] [PATCH] lavfi: add smptehdbars source

[Paul B Mahol]

On 4/23/13, Tim Nicholson <nichot20 at yahoo.com> wrote:
> On 11/04/13 23:44, Paul B Mahol wrote:
>> Signed-off-by: Paul B Mahol <onemda at gmail.com>
>> ---
>>  doc/filters.texi           |   5 +-
>>  libavfilter/Makefile       |   1 +
>>  libavfilter/allfilters.c   |   1 +
>>  libavfilter/vsrc_testsrc.c | 172
>> ++++++++++++++++++++++++++++++++++++++-------
>>  4 files changed, 151 insertions(+), 28 deletions(-)
>>
>> [..]
>
> Is there not a problem, in that ffmpeg always uses the 601 matrix for
> conversion from rgb to YUV, and therefore if these bars are used at HD
> frame sizes (which is what you would expect to do for HD bars), the
> colours will then be wrong?
>
> Or have I missed something?

I compared colors from one from wikipedia and it looks fine to me.