[Cin] SD 16:9 missing among CinGG BD-Render Video Formats

[Andrew Randrianasulu]

вт, 16 янв. 2024 г., 04:02 Terje J. Hanssen via Cin <
cin at lists.cinelerra-gg.org>:

> According to wikipedia, 16:9 SD video formats are also valid BD-Video
> formats
> https://en.wikipedia.org/wiki/Blu-ray#Video
>
> SD   720 × 480 29.97i     4:3 or 16:9[d] (anamorhic)
>      720 × 576 25i        4:3 or 16:9[d]
>
>
> The Create BD Format contains 720 x 576/ 25i/p and 720 x 480/ 29.97i/p
>
> Please verify if this these are SD 4:3 only?
> The wikipedia table lists only SD interlaced as valid SD BD-Video format
>

I just send Phyllis our yesteryear whitepaper from 2010 (creation date),
and yeah, it only lists sd interlaced formats.

BUT some formats marked with "*" , they are not in spec yet playable by
some hardware.


from cinelerra/bdcreate.C

static struct bd_format {
        const char *name;
        int w, h;
        double framerate;
        int wide, interlaced;
} bd_formats[] = {
// framerates are frames, not fields, per second, *=not standard
        { "1920x1080 29.97i",   1920,1080, 29.97,  1, ILACE_MODE_TOP_FIRST
},
        { "1920x1080 29.97p*",  1920,1080, 29.97,  1,
ILACE_MODE_FAKE_INTERLACE },
        { "1920x1080 24p",      1920,1080, 24.,    1,
ILACE_MODE_NOTINTERLACED },
        { "1920x1080 25i",      1920,1080, 25.,    1, ILACE_MODE_TOP_FIRST
},
        { "1920x1080 25p*",     1920,1080, 25.,    1,
ILACE_MODE_FAKE_INTERLACE },
        { "1920x1080 23.976p",  1920,1080, 23.976, 1,
ILACE_MODE_NOTINTERLACED },
        { "1440x1080 29.97i",   1440,1080, 29.97, -1, ILACE_MODE_TOP_FIRST
},
        { "1440x1080 25i",      1440,1080, 25.,   -1, ILACE_MODE_TOP_FIRST
},
        { "1440x1080 24p",      1440,1080, 24.,   -1,
ILACE_MODE_NOTINTERLACED },
        { "1440x1080 23.976p",  1440,1080, 23.976,-1,
ILACE_MODE_NOTINTERLACED },
        { "1280x720  59.94p",   1280,720,  59.94,  1,
ILACE_MODE_NOTINTERLACED },
        { "1280x720  50p",      1280,720,  50.,    1,
ILACE_MODE_NOTINTERLACED },
        { "1280x720  29.97p*",  1280,720,  29.97,  1,
ILACE_MODE_NOTINTERLACED },
        { "1280x720  25p*",     1280,720,  25.,    1,
ILACE_MODE_NOTINTERLACED },
        { "1280x720  24p",      1280,720,  24.,    1,
ILACE_MODE_NOTINTERLACED },                          { "1280x720
23.976p",  1280,720,  23.976, 1, ILACE_MODE_NOTINTERLACED },
        { "720x576   25i",       720,576,  25.,    0,
ILACE_MODE_BOTTOM_FIRST },
        { "720x576   25p*",      720,576,  25.,    0,
ILACE_MODE_NOTINTERLACED },
        { "720x480   29.97i",    720,480,  29.97,  0,
ILACE_MODE_BOTTOM_FIRST },
        { "720x480   29.97p*",   720,480,  29.97,  0,
ILACE_MODE_NOTINTERLACED },
};


so yeah, seems  like sd 16:9 missing. easy to add

I wonder if we should modify 1440*1080 presets to also be wide always? How
it looks now {if source is hdv unscaled}  in real (HD) TV connected to BD
player
?




> If so, SD 16:9 interlaced are missing, while SD progressive are invalid?
> --
> Cin mailing list
> Cin at lists.cinelerra-gg.org
> https://lists.cinelerra-gg.org/mailman/listinfo/cin
>
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