}
shared_ptr<Image>
-Image::scale (Size out_size, Scaler const * scaler, bool aligned) const
+Image::scale (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 (Size out_size, int padding, Scaler const * scaler, bool aligned) const
+Image::scale_and_convert_to_rgb (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 ());
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
return _size;
}
+bool
+SimpleImage::aligned () const
+{
+ return _aligned;
+}
+
FilterBufferImage::FilterBufferImage (AVPixelFormat p, AVFilterBufferRef* b)
: Image (p)
, _buffer (b)
return 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)
{
BOOST_AUTO_TEST_CASE (client_server_test)
{
- shared_ptr<Image> image (new SimpleImage (PIX_FMT_RGB24, libdcp::Size (1998, 1080), false));
+ shared_ptr<Image> image (new SimpleImage (PIX_FMT_RGB24, libdcp::Size (1998, 1080), true));
uint8_t* p = image->data()[0];
for (int y = 0; y < 1080; ++y) {
+ uint8_t* q = p;
for (int x = 0; x < 1998; ++x) {
- *p++ = x % 256;
- *p++ = y % 256;
- *p++ = (x + y) % 256;
+ *q++ = x % 256;
+ *q++ = y % 256;
+ *q++ = (x + y) % 256;
}
+ p += image->stride()[0];
}
- shared_ptr<Image> sub_image (new SimpleImage (PIX_FMT_RGBA, libdcp::Size (100, 200), false));
+ shared_ptr<Image> sub_image (new SimpleImage (PIX_FMT_RGBA, libdcp::Size (100, 200), true));
p = sub_image->data()[0];
for (int y = 0; y < 200; ++y) {
+ uint8_t* q = p;
for (int x = 0; x < 100; ++x) {
- *p++ = y % 256;
- *p++ = x % 256;
- *p++ = (x + y) % 256;
- *p++ = 1;
+ *q++ = y % 256;
+ *q++ = x % 256;
+ *q++ = (x + y) % 256;
+ *q++ = 1;
}
+ p += sub_image->stride()[0];
}
shared_ptr<Subtitle> subtitle (new Subtitle (Position (50, 60), sub_image));