#include "timer.h"
#include "rect.h"
#include "util.h"
+#include "compose.hpp"
#include "dcpomatic_socket.h"
#include <dcp/rgb_xyz.h>
#include <dcp/transfer_function.h>
#include <libavutil/pixdesc.h>
#include <libavutil/frame.h>
}
+#include <png.h>
+#if HAVE_VALGRIND_MEMCHECK_H
+#include <valgrind/memcheck.h>
+#endif
#include <iostream>
#include "i18n.h"
using dcp::Size;
int
-Image::line_factor (int n) const
+Image::vertical_factor (int n) const
{
if (n == 0) {
return 1;
return pow (2.0f, d->log2_chroma_h);
}
+int
+Image::horizontal_factor (int n) const
+{
+ if (n == 0) {
+ return 1;
+ }
+
+ AVPixFmtDescriptor const * d = av_pix_fmt_desc_get(_pixel_format);
+ if (!d) {
+ throw PixelFormatError ("sample_size()", _pixel_format);
+ }
+
+ return pow (2.0f, d->log2_chroma_w);
+}
+
/** @param n Component index.
* @return Number of samples (i.e. pixels, unless sub-sampled) in each direction for this component.
*/
dcp::Size
Image::sample_size (int n) const
{
- int horizontal_factor = 1;
- if (n > 0) {
- AVPixFmtDescriptor const * d = av_pix_fmt_desc_get (_pixel_format);
- if (!d) {
- throw PixelFormatError ("sample_size()", _pixel_format);
- }
- horizontal_factor = pow (2.0f, d->log2_chroma_w);
- }
-
return dcp::Size (
- lrint (ceil (static_cast<double>(size().width) / horizontal_factor)),
- lrint (ceil (static_cast<double>(size().height) / line_factor (n)))
+ lrint (ceil (static_cast<double>(size().width) / horizontal_factor (n))),
+ lrint (ceil (static_cast<double>(size().height) / vertical_factor (n)))
);
}
throw PixelFormatError ("planes()", _pixel_format);
}
+ if (_pixel_format == AV_PIX_FMT_PAL8) {
+ return 2;
+ }
+
if ((d->flags & AV_PIX_FMT_FLAG_PLANAR) == 0) {
return 1;
}
}
/** Crop this image, scale it to `inter_size' and then place it in a black frame of `out_size'.
+ * @param crop Amount to crop by.
+ * @param inter_size Size to scale the cropped image to.
+ * @param out_size Size of output frame; if this is larger than inter_size there will be black padding.
+ * @param yuv_to_rgb YUV to RGB transformation to use, if required.
+ * @param out_format Output pixel format.
+ * @param out_aligned true to make the output image aligned.
* @param fast Try to be fast at the possible expense of quality; at present this means using
* fast bilinear rather than bicubic scaling.
*/
SWS_CS_ITU709
};
+ /* The 3rd parameter here is:
+ 0 -> source range MPEG (i.e. "video", 16-235)
+ 1 -> source range JPEG (i.e. "full", 0-255)
+ And the 5th:
+ 0 -> destination range MPEG (i.e. "video", 16-235)
+ 1 -> destination range JPEG (i.e. "full", 0-255)
+
+ But remember: sws_setColorspaceDetails ignores
+ these parameters unless the image isYUV or isGray
+ (if it's neither, it uses video range for source
+ and destination).
+ */
sws_setColorspaceDetails (
scale_context,
sws_getCoefficients (lut[yuv_to_rgb]), 0,
0, 1 << 16, 1 << 16
);
- AVPixFmtDescriptor const * desc = av_pix_fmt_desc_get (_pixel_format);
- if (!desc) {
+ AVPixFmtDescriptor const * in_desc = av_pix_fmt_desc_get (_pixel_format);
+ if (!in_desc) {
throw PixelFormatError ("crop_scale_window()", _pixel_format);
}
round down so that we don't crop a subsampled pixel until
we've cropped all of its Y-channel pixels.
*/
- int const x = lrintf (bytes_per_pixel(c) * crop.left) & ~ ((int) desc->log2_chroma_w);
- scale_in_data[c] = data()[c] + x + stride()[c] * (crop.top / line_factor(c));
+ int const x = lrintf (bytes_per_pixel(c) * crop.left) & ~ ((int) in_desc->log2_chroma_w);
+ scale_in_data[c] = data()[c] + x + stride()[c] * (crop.top / vertical_factor(c));
}
/* Corner of the image within out_size */
Position<int> const corner ((out_size.width - inter_size.width) / 2, (out_size.height - inter_size.height) / 2);
+ AVPixFmtDescriptor const * out_desc = av_pix_fmt_desc_get (out_format);
+ if (!out_desc) {
+ throw PixelFormatError ("crop_scale_window()", out_format);
+ }
+
uint8_t* scale_out_data[out->planes()];
for (int c = 0; c < out->planes(); ++c) {
- scale_out_data[c] = out->data()[c] + lrintf (out->bytes_per_pixel(c) * corner.x) + out->stride()[c] * corner.y;
+ /* See the note in the crop loop above */
+ int const x = lrintf (out->bytes_per_pixel(c) * corner.x) & ~ ((int) out_desc->log2_chroma_w);
+ scale_out_data[c] = out->data()[c] + x + out->stride()[c] * (corner.y / out->vertical_factor(c));
}
sws_scale (
return out;
}
-/** @param fast Try to be fast at the possible expense of quality; at present this means using
+shared_ptr<Image>
+Image::convert_pixel_format (dcp::YUVToRGB yuv_to_rgb, AVPixelFormat out_format, bool out_aligned, bool fast) const
+{
+ return scale(size(), yuv_to_rgb, out_format, out_aligned, fast);
+}
+
+/** @param out_size Size to scale to.
+ * @param yuv_to_rgb YUVToRGB transform transform to use, if required.
+ * @param out_format Output pixel format.
+ * @param out_aligned true to make an aligned output image.
+ * @param fast Try to be fast at the possible expense of quality; at present this means using
* fast bilinear rather than bicubic scaling.
*/
shared_ptr<Image>
struct SwsContext* scale_context = sws_getContext (
size().width, size().height, pixel_format(),
out_size.width, out_size.height, out_format,
- fast ? SWS_FAST_BILINEAR : SWS_BICUBIC, 0, 0, 0
+ (fast ? SWS_FAST_BILINEAR : SWS_BICUBIC) | SWS_ACCURATE_RND, 0, 0, 0
);
DCPOMATIC_ASSERT (yuv_to_rgb < dcp::YUV_TO_RGB_COUNT);
SWS_CS_ITU709
};
+ /* The 3rd parameter here is:
+ 0 -> source range MPEG (i.e. "video", 16-235)
+ 1 -> source range JPEG (i.e. "full", 0-255)
+ And the 5th:
+ 0 -> destination range MPEG (i.e. "video", 16-235)
+ 1 -> destination range JPEG (i.e. "full", 0-255)
+
+ But remember: sws_setColorspaceDetails ignores
+ these parameters unless the image isYUV or isGray
+ (if it's neither, it uses video range for source
+ and destination).
+ */
sws_setColorspaceDetails (
scale_context,
sws_getCoefficients (lut[yuv_to_rgb]), 0,
void
Image::make_transparent ()
{
- if (_pixel_format != AV_PIX_FMT_RGBA) {
+ if (_pixel_format != AV_PIX_FMT_BGRA) {
throw PixelFormatError ("make_transparent()", _pixel_format);
}
void
Image::alpha_blend (shared_ptr<const Image> other, Position<int> position)
{
- /* We're blending RGBA images; first byte is blue, second byte is green, third byte blue, fourth byte alpha */
- DCPOMATIC_ASSERT (other->pixel_format() == AV_PIX_FMT_RGBA);
+ /* We're blending BGRA images; first byte is blue, second byte is green, third byte red, fourth byte alpha */
+ DCPOMATIC_ASSERT (other->pixel_format() == AV_PIX_FMT_BGRA);
int const other_bpp = 4;
int start_tx = position.x;
break;
}
case AV_PIX_FMT_BGRA:
- case AV_PIX_FMT_RGBA:
{
int const this_bpp = 4;
for (int ty = start_ty, oy = start_oy; ty < size().height && oy < other->size().height; ++ty, ++oy) {
}
break;
}
+ case AV_PIX_FMT_RGBA:
+ {
+ int const this_bpp = 4;
+ for (int ty = start_ty, oy = start_oy; ty < size().height && oy < other->size().height; ++ty, ++oy) {
+ uint8_t* tp = data()[0] + ty * stride()[0] + start_tx * this_bpp;
+ uint8_t* op = other->data()[0] + oy * other->stride()[0];
+ for (int tx = start_tx, ox = start_ox; tx < size().width && ox < other->size().width; ++tx, ++ox) {
+ float const alpha = float (op[3]) / 255;
+ tp[0] = op[2] * alpha + tp[0] * (1 - alpha);
+ tp[1] = op[1] * alpha + tp[1] * (1 - alpha);
+ tp[2] = op[0] * alpha + tp[2] * (1 - alpha);
+ tp[3] = op[3] * alpha + tp[3] * (1 - alpha);
+
+ tp += this_bpp;
+ op += other_bpp;
+ }
+ }
+ break;
+ }
case AV_PIX_FMT_RGB48LE:
{
int const this_bpp = 6;
uint8_t* op = other->data()[0] + oy * other->stride()[0];
for (int tx = start_tx, ox = start_ox; tx < size().width && ox < other->size().width; ++tx, ++ox) {
float const alpha = float (op[3]) / 255;
- /* Blend high bytes; the RGBA in op appears to be BGRA */
+ /* Blend high bytes */
tp[1] = op[2] * alpha + tp[1] * (1 - alpha);
tp[3] = op[1] * alpha + tp[3] * (1 - alpha);
tp[5] = op[0] * alpha + tp[5] * (1 - alpha);
}
break;
}
+ case AV_PIX_FMT_YUV420P:
+ {
+ shared_ptr<Image> yuv = other->convert_pixel_format (dcp::YUV_TO_RGB_REC709, _pixel_format, false, false);
+ dcp::Size const ts = size();
+ dcp::Size const os = yuv->size();
+ for (int ty = start_ty, oy = start_oy; ty < ts.height && oy < os.height; ++ty, ++oy) {
+ int const hty = ty / 2;
+ int const hoy = oy / 2;
+ uint8_t* tY = data()[0] + (ty * stride()[0]) + start_tx;
+ uint8_t* tU = data()[1] + (hty * stride()[1]) + start_tx / 2;
+ uint8_t* tV = data()[2] + (hty * stride()[2]) + start_tx / 2;
+ uint8_t* oY = yuv->data()[0] + (oy * yuv->stride()[0]) + start_ox;
+ uint8_t* oU = yuv->data()[1] + (hoy * yuv->stride()[1]) + start_ox / 2;
+ uint8_t* oV = yuv->data()[2] + (hoy * yuv->stride()[2]) + start_ox / 2;
+ uint8_t* alpha = other->data()[0] + (oy * other->stride()[0]) + start_ox * 4;
+ for (int tx = start_tx, ox = start_ox; tx < ts.width && ox < os.width; ++tx, ++ox) {
+ float const a = float(alpha[3]) / 255;
+ *tY = *oY * a + *tY * (1 - a);
+ *tU = *oU * a + *tU * (1 - a);
+ *tV = *oV * a + *tV * (1 - a);
+ ++tY;
+ ++oY;
+ if (tx % 2) {
+ ++tU;
+ ++tV;
+ }
+ if (ox % 2) {
+ ++oU;
+ ++oV;
+ }
+ alpha += 4;
+ }
+ }
+ break;
+ }
+ case AV_PIX_FMT_YUV420P10:
+ {
+ shared_ptr<Image> yuv = other->convert_pixel_format (dcp::YUV_TO_RGB_REC709, _pixel_format, false, false);
+ dcp::Size const ts = size();
+ dcp::Size const os = yuv->size();
+ for (int ty = start_ty, oy = start_oy; ty < ts.height && oy < os.height; ++ty, ++oy) {
+ int const hty = ty / 2;
+ int const hoy = oy / 2;
+ uint16_t* tY = ((uint16_t *) (data()[0] + (ty * stride()[0]))) + start_tx;
+ uint16_t* tU = ((uint16_t *) (data()[1] + (hty * stride()[1]))) + start_tx / 2;
+ uint16_t* tV = ((uint16_t *) (data()[2] + (hty * stride()[2]))) + start_tx / 2;
+ uint16_t* oY = ((uint16_t *) (yuv->data()[0] + (oy * yuv->stride()[0]))) + start_ox;
+ uint16_t* oU = ((uint16_t *) (yuv->data()[1] + (hoy * yuv->stride()[1]))) + start_ox / 2;
+ uint16_t* oV = ((uint16_t *) (yuv->data()[2] + (hoy * yuv->stride()[2]))) + start_ox / 2;
+ uint8_t* alpha = other->data()[0] + (oy * other->stride()[0]) + start_ox * 4;
+ for (int tx = start_tx, ox = start_ox; tx < ts.width && ox < os.width; ++tx, ++ox) {
+ float const a = float(alpha[3]) / 255;
+ *tY = *oY * a + *tY * (1 - a);
+ *tU = *oU * a + *tU * (1 - a);
+ *tV = *oV * a + *tV * (1 - a);
+ ++tY;
+ ++oY;
+ if (tx % 2) {
+ ++tU;
+ ++tV;
+ }
+ if (ox % 2) {
+ ++oU;
+ ++oV;
+ }
+ alpha += 4;
+ }
+ }
+ break;
+ }
+ case AV_PIX_FMT_YUV422P10LE:
+ {
+ shared_ptr<Image> yuv = other->convert_pixel_format (dcp::YUV_TO_RGB_REC709, _pixel_format, false, false);
+ dcp::Size const ts = size();
+ dcp::Size const os = yuv->size();
+ for (int ty = start_ty, oy = start_oy; ty < ts.height && oy < os.height; ++ty, ++oy) {
+ uint16_t* tY = ((uint16_t *) (data()[0] + (ty * stride()[0]))) + start_tx;
+ uint16_t* tU = ((uint16_t *) (data()[1] + (ty * stride()[1]))) + start_tx / 2;
+ uint16_t* tV = ((uint16_t *) (data()[2] + (ty * stride()[2]))) + start_tx / 2;
+ uint16_t* oY = ((uint16_t *) (yuv->data()[0] + (oy * yuv->stride()[0]))) + start_ox;
+ uint16_t* oU = ((uint16_t *) (yuv->data()[1] + (oy * yuv->stride()[1]))) + start_ox / 2;
+ uint16_t* oV = ((uint16_t *) (yuv->data()[2] + (oy * yuv->stride()[2]))) + start_ox / 2;
+ uint8_t* alpha = other->data()[0] + (oy * other->stride()[0]) + start_ox * 4;
+ for (int tx = start_tx, ox = start_ox; tx < ts.width && ox < os.width; ++tx, ++ox) {
+ float const a = float(alpha[3]) / 255;
+ *tY = *oY * a + *tY * (1 - a);
+ *tU = *oU * a + *tU * (1 - a);
+ *tV = *oV * a + *tV * (1 - a);
+ ++tY;
+ ++oY;
+ if (tx % 2) {
+ ++tU;
+ ++tV;
+ }
+ if (ox % 2) {
+ ++oU;
+ ++oV;
+ }
+ alpha += 4;
+ }
+ }
+ break;
+ }
default:
- DCPOMATIC_ASSERT (false);
+ throw PixelFormatError ("alpha_blend()", _pixel_format);
}
}
*
* @param p Pixel format.
* @param s Size in pixels.
+ * @param aligned true to make each row of this image aligned to a 32-byte boundary.
* @param extra_pixels Amount of extra "run-off" memory to allocate at the end of each plane in pixels.
*/
Image::Image (AVPixelFormat p, dcp::Size s, bool aligned, int extra_pixels)
testing suggests that it works.
*/
_data[i] = (uint8_t *) wrapped_av_malloc (_stride[i] * sample_size(i).height + _extra_pixels * bytes_per_pixel(i) + 32);
+#if HAVE_VALGRIND_MEMCHECK_H
+ /* The data between the end of the line size and the stride is undefined but processed by
+ libswscale, causing lots of valgrind errors. Mark it all defined to quell these errors.
+ */
+ VALGRIND_MAKE_MEM_DEFINED (_data[i], _stride[i] * sample_size(i).height + _extra_pixels * bytes_per_pixel(i) + 32);
+#endif
}
}
Image::Image (Image const & other)
- : _size (other._size)
+ : boost::enable_shared_from_this<Image>(other)
+ , _size (other._size)
, _pixel_format (other._pixel_format)
, _aligned (other._aligned)
, _extra_pixels (other._extra_pixels)
throw PixelFormatError ("fade()", _pixel_format);
}
}
+
+shared_ptr<const Image>
+Image::ensure_aligned (shared_ptr<const Image> image)
+{
+ if (image->aligned()) {
+ return image;
+ }
+
+ return shared_ptr<Image> (new Image (image, true));
+}
+
+size_t
+Image::memory_used () const
+{
+ size_t m = 0;
+ for (int i = 0; i < planes(); ++i) {
+ m += _stride[i] * sample_size(i).height;
+ }
+ return m;
+}
+
+class Memory
+{
+public:
+ Memory ()
+ : data(0)
+ , size(0)
+ {}
+
+ ~Memory ()
+ {
+ free (data);
+ }
+
+ uint8_t* data;
+ size_t size;
+};
+
+static void
+png_write_data (png_structp png_ptr, png_bytep data, png_size_t length)
+{
+ Memory* mem = reinterpret_cast<Memory*>(png_get_io_ptr(png_ptr));
+ size_t size = mem->size + length;
+
+ if (mem->data) {
+ mem->data = reinterpret_cast<uint8_t*>(realloc(mem->data, size));
+ } else {
+ mem->data = reinterpret_cast<uint8_t*>(malloc(size));
+ }
+
+ if (!mem->data) {
+ throw EncodeError (N_("could not allocate memory for PNG"));
+ }
+
+ memcpy (mem->data + mem->size, data, length);
+ mem->size += length;
+}
+
+static void
+png_flush (png_structp)
+{
+
+}
+
+static void
+png_error_fn (png_structp png_ptr, char const * message)
+{
+ reinterpret_cast<Image*>(png_get_error_ptr(png_ptr))->png_error (message);
+}
+
+void
+Image::png_error (char const * message)
+{
+ throw EncodeError (String::compose ("Error during PNG write: %1", message));
+}
+
+dcp::Data
+Image::as_png () const
+{
+ DCPOMATIC_ASSERT (bytes_per_pixel(0) == 4);
+ DCPOMATIC_ASSERT (planes() == 1);
+ DCPOMATIC_ASSERT (pixel_format() == AV_PIX_FMT_BGRA);
+
+ /* error handling? */
+ png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, reinterpret_cast<void*>(const_cast<Image*>(this)), png_error_fn, 0);
+ if (!png_ptr) {
+ throw EncodeError (N_("could not create PNG write struct"));
+ }
+
+ Memory state;
+
+ png_set_write_fn (png_ptr, &state, png_write_data, png_flush);
+
+ png_infop info_ptr = png_create_info_struct(png_ptr);
+ if (!info_ptr) {
+ png_destroy_write_struct (&png_ptr, &info_ptr);
+ throw EncodeError (N_("could not create PNG info struct"));
+ }
+
+ png_set_IHDR (png_ptr, info_ptr, size().width, size().height, 8, PNG_COLOR_TYPE_RGBA, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
+
+ png_byte ** row_pointers = reinterpret_cast<png_byte **>(png_malloc(png_ptr, size().height * sizeof(png_byte *)));
+ for (int i = 0; i < size().height; ++i) {
+ row_pointers[i] = (png_byte *) (data()[0] + i * stride()[0]);
+ }
+
+ png_write_info (png_ptr, info_ptr);
+ png_write_image (png_ptr, row_pointers);
+ png_write_end (png_ptr, info_ptr);
+
+ png_destroy_write_struct (&png_ptr, &info_ptr);
+ png_free (png_ptr, row_pointers);
+
+ return dcp::Data (state.data, state.size);
+}