* @brief A set of classes to describe video images.
*/
-#ifndef DVDOMATIC_IMAGE_H
-#define DVDOMATIC_IMAGE_H
+#ifndef DCPOMATIC_IMAGE_H
+#define DCPOMATIC_IMAGE_H
#include <string>
#include <boost/shared_ptr.hpp>
+#include <boost/function.hpp>
extern "C" {
#include <libavcodec/avcodec.h>
#include <libavfilter/avfilter.h>
}
+#include <libdcp/image.h>
#include "util.h"
+#include "position.h"
class Scaler;
-class RGBFrameImage;
-class PostProcessImage;
-/** @class Image
- * @brief Parent class for wrappers of some image, in some format, that
- * can present a set of components and a size in pixels.
- *
- * This class also has some conversion / processing methods.
- *
- * The main point of this class (and its subclasses) is to abstract
- * details of FFmpeg's memory management and varying data formats.
- */
-class Image
+class Image : public libdcp::Image
{
public:
- Image (PixelFormat p)
- : _pixel_format (p)
- {}
+ Image (AVPixelFormat, libdcp::Size, bool);
+ Image (AVFrame *);
+ Image (Image const &);
+ Image (boost::shared_ptr<const Image>, bool);
+ Image& operator= (Image const &);
+ ~Image ();
- virtual ~Image () {}
-
- /** @return Array of pointers to arrays of the component data */
- virtual uint8_t ** data () const = 0;
-
- /** @return Array of sizes of each line, in pixels */
- virtual int * line_size () const = 0;
-
- /** @return Size of the image, in pixels */
- virtual Size size () const = 0;
+ uint8_t ** data () const;
+ int * line_size () const;
+ int * stride () const;
+ libdcp::Size size () const;
+ bool aligned () const;
int components () const;
+ int line_factor (int) const;
int lines (int) const;
- boost::shared_ptr<RGBFrameImage> scale_and_convert_to_rgb (Size, int, Scaler const *) const;
- boost::shared_ptr<Image> scale (Size, Scaler const *) const;
- boost::shared_ptr<PostProcessImage> post_process (std::string) const;
+
+ boost::shared_ptr<Image> scale (libdcp::Size, Scaler const *, AVPixelFormat, bool aligned) const;
+ boost::shared_ptr<Image> post_process (std::string, bool aligned) const;
+ void alpha_blend (boost::shared_ptr<const Image> image, Position<int> pos);
+ void copy (boost::shared_ptr<const Image> image, Position<int> pos);
+ boost::shared_ptr<Image> crop (Crop c, bool aligned) const;
void make_black ();
+
+ void read_from_socket (boost::shared_ptr<Socket>);
+ void write_to_socket (boost::shared_ptr<Socket>) const;
- PixelFormat pixel_format () const {
+ AVPixelFormat pixel_format () const {
return _pixel_format;
}
private:
- PixelFormat _pixel_format; ///< FFmpeg's way of describing the pixel format of this Image
-};
-
-/** @class FilterBufferImage
- * @brief An Image that is held in an AVFilterBufferRef.
- */
-class FilterBufferImage : public Image
-{
-public:
- FilterBufferImage (PixelFormat, AVFilterBufferRef *);
- ~FilterBufferImage ();
-
- uint8_t ** data () const;
- int * line_size () const;
- Size size () const;
-
-private:
- AVFilterBufferRef* _buffer;
-};
-
-/** @class SimpleImage
- * @brief An Image for which memory is allocated using a `simple' av_malloc().
- */
-class SimpleImage : public Image
-{
-public:
- SimpleImage (PixelFormat, Size);
- ~SimpleImage ();
-
- uint8_t ** data () const;
- int * line_size () const;
- Size size () const;
+ friend class pixel_formats_test;
-private:
- Size _size; ///< size in pixels
+ void allocate ();
+ void swap (Image &);
+ float bytes_per_pixel (int) const;
+ void yuv_16_black (uint16_t, bool);
+ static uint16_t swap_16 (uint16_t);
+
+ AVPixelFormat _pixel_format; ///< FFmpeg's way of describing the pixel format of this Image
uint8_t** _data; ///< array of pointers to components
- int* _line_size; ///< array of widths of each line, in bytes
-};
-
-/** @class RGBFrameImage
- * @brief An RGB image that is held within an AVFrame.
- */
-class RGBFrameImage : public Image
-{
-public:
- RGBFrameImage (Size);
- ~RGBFrameImage ();
-
- uint8_t ** data () const;
- int * line_size () const;
- Size size () const;
- AVFrame * frame () const {
- return _frame;
- }
-
-private:
- Size _size;
- AVFrame* _frame;
- uint8_t* _data;
-};
-
-/** @class PostProcessImage
- * @brief An image that is the result of an FFmpeg post-processing run.
- */
-class PostProcessImage : public Image
-{
-public:
- PostProcessImage (PixelFormat, Size);
- ~PostProcessImage ();
-
- uint8_t ** data () const;
- int * line_size () const;
- Size size () const;
-
-private:
- Size _size;
- uint8_t** _data;
- int* _line_size;
+ int* _line_size; ///< array of sizes of the data in each line, in pixels (without any alignment padding bytes)
+ int* _stride; ///< array of strides for each line (including any alignment padding bytes)
+ bool _aligned;
};
#endif