using namespace std;
using namespace boost;
+using libdcp::Size;
void
Image::swap (Image& other)
}
shared_ptr<Image>
-Image::scale (libdcp::Size out_size, Scaler const * scaler, bool aligned) const
+Image::scale (libdcp::Size out_size, Scaler const * scaler, bool result_aligned) const
{
assert (scaler);
+ /* Empirical testing suggests that sws_scale() will crash if
+ the input image is not aligned.
+ */
+ assert (aligned ());
- shared_ptr<Image> scaled (new SimpleImage (pixel_format(), out_size, aligned));
+ shared_ptr<Image> scaled (new SimpleImage (pixel_format(), out_size, result_aligned));
struct SwsContext* scale_context = sws_getContext (
size().width, size().height, pixel_format(),
* @param scaler Scaler to use.
*/
shared_ptr<Image>
-Image::scale_and_convert_to_rgb (libdcp::Size out_size, int padding, Scaler const * scaler, bool aligned) const
+Image::scale_and_convert_to_rgb (libdcp::Size out_size, int padding, Scaler const * scaler, bool result_aligned) const
{
assert (scaler);
+ /* Empirical testing suggests that sws_scale() will crash if
+ the input image is not aligned.
+ */
+ assert (aligned ());
libdcp::Size content_size = out_size;
content_size.width -= (padding * 2);
- shared_ptr<Image> rgb (new SimpleImage (PIX_FMT_RGB24, content_size, aligned));
+ shared_ptr<Image> rgb (new SimpleImage (PIX_FMT_RGB24, content_size, result_aligned));
struct SwsContext* scale_context = sws_getContext (
size().width, size().height, pixel_format(),
scheme of things.
*/
if (padding > 0) {
- shared_ptr<Image> padded_rgb (new SimpleImage (PIX_FMT_RGB24, out_size, aligned));
+ shared_ptr<Image> padded_rgb (new SimpleImage (PIX_FMT_RGB24, out_size, result_aligned));
padded_rgb->make_black ();
/* XXX: we are cheating a bit here; we know the frame is RGB so we can
{
switch (_pixel_format) {
case PIX_FMT_YUV420P:
- case PIX_FMT_YUV422P10LE:
case PIX_FMT_YUV422P:
memset (data()[0], 0, lines(0) * stride()[0]);
- memset (data()[1], 0x80, lines(1) * stride()[1]);
- memset (data()[2], 0x80, lines(2) * stride()[2]);
+ memset (data()[1], 0x7f, lines(1) * stride()[1]);
+ memset (data()[2], 0x7f, lines(2) * stride()[2]);
break;
+ case PIX_FMT_YUV422P10LE:
+ memset (data()[0], 0, lines(0) * stride()[0]);
+ for (int i = 1; i < 3; ++i) {
+ int16_t* p = reinterpret_cast<int16_t*> (data()[i]);
+ for (int y = 0; y < size().height; ++y) {
+ for (int x = 0; x < line_size()[i] / 2; ++x) {
+ p[x] = (1 << 9) - 1;
+ }
+ p += stride()[i] / 2;
+ }
+ }
+ break;
+
case PIX_FMT_RGB24:
memset (data()[0], 0, lines(0) * stride()[0]);
break;
return 0.5;
}
case PIX_FMT_YUV422P10LE:
- if (c == 1) {
+ if (c == 0) {
return 2;
} else {
return 1;
return _size;
}
+bool
+SimpleImage::aligned () const
+{
+ return _aligned;
+}
+
FilterBufferImage::FilterBufferImage (AVPixelFormat p, AVFilterBufferRef* b)
: Image (p)
, _buffer (b)
return libdcp::Size (_buffer->video->w, _buffer->video->h);
}
+bool
+FilterBufferImage::aligned () const
+{
+ /* XXX? */
+ return true;
+}
+
RGBPlusAlphaImage::RGBPlusAlphaImage (shared_ptr<const Image> im)
: SimpleImage (im->pixel_format(), im->size(), false)
{