void
Image::make_part_black (int const start, int const width)
{
+ auto y_part = [&]() {
+ int const bpp = bytes_per_pixel(0);
+ int const h = sample_size(0).height;
+ int const s = stride()[0];
+ auto p = data()[0];
+ for (int y = 0; y < h; ++y) {
+ memset (p + start * bpp, 0, width * bpp);
+ p += s;
+ }
+ };
+
switch (_pixel_format) {
case AV_PIX_FMT_RGB24:
case AV_PIX_FMT_ARGB:
}
break;
}
- case AV_PIX_FMT_YUV422P10LE:
+ case AV_PIX_FMT_YUV420P:
{
- int const bpp_0 = bytes_per_pixel(0);
- int const h_0 = sample_size(0).height;
- int const stride_0 = stride()[0];
- auto p = data()[0];
- for (int y = 0; y < h_0; ++y) {
- memset (p + start * bpp_0, 0xff, width * bpp_0);
- p += stride_0;
+ y_part ();
+ for (int i = 1; i < 3; ++i) {
+ auto p = data()[i];
+ int const h = sample_size(i).height;
+ for (int y = 0; y < h; ++y) {
+ for (int x = start / 2; x < (start + width) / 2; ++x) {
+ p[x] = eight_bit_uv;
+ }
+ p += stride()[i];
+ }
}
+ break;
+ }
+ case AV_PIX_FMT_YUV422P10LE:
+ {
+ y_part ();
for (int i = 1; i < 3; ++i) {
auto p = reinterpret_cast<int16_t*>(data()[i]);
- int const lines = sample_size(i).height;
- for (int y = 0; y < lines; ++y) {
+ int const h = sample_size(i).height;
+ for (int y = 0; y < h; ++y) {
for (int x = start / 2; x < (start + width) / 2; ++x) {
p[x] = ten_bit_uv;
}