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fixed incorrect colors when scaling with software

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This commit is contained in:
loki 2021-06-20 16:13:34 +02:00
parent 0034438c9e
commit 0a05c28df8
1 changed files with 10 additions and 8 deletions
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18
sunshine/video.cpp
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@ -84,14 +84,14 @@ public:
std::uint8_t *data[4];
data[0] = sw_frame->data[0] + offset;
data[0] = sw_frame->data[0] + offsetY;
if(sw_frame->format == AV_PIX_FMT_NV12) {
data[1] = sw_frame->data[1] + offset / 2;
data[1] = sw_frame->data[1] + offsetUV;
data[2] = nullptr;
}
else {
data[1] = sw_frame->data[1] + offset / 4;
data[2] = sw_frame->data[2] + offset / 4;
data[1] = sw_frame->data[1] + offsetUV;
data[2] = sw_frame->data[2] + offsetUV;
data[3] = nullptr;
}
@ -207,9 +207,10 @@ public:
out_height = in_height * scalar;
// result is always positive
auto offsetX = (frame->width - out_width) / 2;
auto offsetY = (frame->height - out_height) / 2;
offset = offsetX + offsetY * frame->width;
auto offsetW = (frame->width - out_width) / 2;
auto offsetH = (frame->height - out_height) / 2;
offsetUV = (offsetW + offsetH * frame->width / 2) / 2;
offsetY = offsetW + offsetH * frame->width;
sws.reset(sws_getContext(
in_width, in_height, AV_PIX_FMT_BGR0,
@ -229,7 +230,8 @@ public:
sws_t sws;
// offset of input image to output frame in pixels
int offset;
int offsetUV;
int offsetY;
};
enum flag_e {