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vo_opengl: handle grayscale input better, add YA16 support

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Simply clamp off the U/V components in the colormatrix, instead of doing
something special in the shader.

Also, since YA8/YA16 gave a plane_bits value of 16/32, and a colormatrix
calculation overflowed with 32, add a component_bits field to the image
format descriptor, which for YA8/YA16 returns 8/16 (the wrong value had
no bad consequences otherwise).
This commit is contained in:
wm4
2015-01-21 19:29:18 +01:00
parent 30ca30c0a1
commit a0caadd512
7 changed files with 26 additions and 21 deletions
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2
video/img_format.h
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@@ -82,6 +82,7 @@ struct mp_imgfmt_desc {
int8_t bytes[MP_MAX_PLANES]; // bytes per pixel (MP_IMGFLAG_BYTE_ALIGNED)
int8_t bpp[MP_MAX_PLANES]; // bits per pixel
int8_t plane_bits; // number of bits in use for plane 0
int8_t component_bits; // number of bits per component (0 if uneven)
// chroma shifts per plane (provided for convenience with planar formats)
int8_t xs[MP_MAX_PLANES];
int8_t ys[MP_MAX_PLANES];
@@ -135,6 +136,7 @@ enum mp_imgfmt {
// Gray with alpha (packed)
IMGFMT_YA8,
IMGFMT_YA16,
// Packed YUV formats (components are byte-accessed)
IMGFMT_YUYV, // Y0 U Y1 V