/** The memory alignment, in bytes, used for each row of an image if aligment is requested */
#define ALIGNMENT 64
+/* U/V black value for 8-bit colour */
+static uint8_t const eight_bit_uv = (1 << 7) - 1;
+/* U/V black value for 9-bit colour */
+static uint16_t const nine_bit_uv = (1 << 8) - 1;
+/* U/V black value for 10-bit colour */
+static uint16_t const ten_bit_uv = (1 << 9) - 1;
+/* U/V black value for 16-bit colour */
+static uint16_t const sixteen_bit_uv = (1 << 15) - 1;
+
int
Image::vertical_factor (int n) const
}
void
-Image::make_part_black (int x, int w)
+Image::make_part_black (int const start, int const width)
{
switch (_pixel_format) {
case AV_PIX_FMT_RGB24:
int const s = stride()[0];
uint8_t* p = data()[0];
for (int y = 0; y < h; y++) {
- memset (p + x * bpp, 0, w * bpp);
+ memset (p + start * bpp, 0, width * bpp);
p += s;
}
break;
}
-
+ case AV_PIX_FMT_YUV422P10LE:
+ {
+ 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;
+ }
+ 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) {
+ for (int x = start / 2; x < (start + width) / 2; ++x) {
+ p[x] = ten_bit_uv;
+ }
+ p += stride()[i] / 2;
+ }
+ }
+ break;
+ }
default:
throw PixelFormatError ("make_part_black()", _pixel_format);
}
void
Image::make_black ()
{
- /* U/V black value for 8-bit colour */
- static uint8_t const eight_bit_uv = (1 << 7) - 1;
- /* U/V black value for 9-bit colour */
- static uint16_t const nine_bit_uv = (1 << 8) - 1;
- /* U/V black value for 10-bit colour */
- static uint16_t const ten_bit_uv = (1 << 9) - 1;
- /* U/V black value for 16-bit colour */
- static uint16_t const sixteen_bit_uv = (1 << 15) - 1;
-
switch (_pixel_format) {
case AV_PIX_FMT_YUV420P:
case AV_PIX_FMT_YUV422P: