Hi Maxime, W dniu 13.10.2022 o 15:19, Maxime Ripard pisze: > From: Mateusz Kwiatkowski <kfyatek+public...@gmail.com> > > Add support for the following composite output modes (all of them are > somewhat more obscure than the previously defined ones): > > - NTSC_443 - NTSC-style signal with the chroma subcarrier shifted to > 4.43361875 MHz (the PAL subcarrier frequency). Never used for > broadcasting, but sometimes used as a hack to play NTSC content in PAL > regions (e.g. on VCRs). > - PAL_N - PAL with alternative chroma subcarrier frequency, > 3.58205625 MHz. Used as a broadcast standard in Argentina, Paraguay > and Uruguay to fit 576i50 with colour in 6 MHz channel raster. > - PAL60 - 480i60 signal with PAL-style color at normal European PAL > frequency. Another non-standard, non-broadcast mode, used in similar > contexts as NTSC_443. Some displays support one but not the other.
The current version actually does not support PAL-60. Proper PAL-60 output from VEC requires configuring it differently than for regular PAL. We have unified the PAL and PAL-60 modes for the "TV mode" property, but the code here has not been adjusted appropriately. I'll try to submit an additional patch that fixes this shortly. > - SECAM - French frequency-modulated analog color standard; also have > been broadcast in Eastern Europe and various parts of Africa and Asia. > Uses the same 576i50 timings as PAL. > > Also added some comments explaining color subcarrier frequency > registers. > > Acked-by: Noralf Trønnes <nor...@tronnes.org> > Signed-off-by: Mateusz Kwiatkowski <kfyatek+public...@gmail.com> > Signed-off-by: Maxime Ripard <max...@cerno.tech> > --- (snip) Best regards, Mateusz Kwiatkowski
