#include <libavfilter/avfiltergraph.h>
#include <libpostproc/postprocess.h>
#include <libavutil/pixfmt.h>
+#include <libavutil/pixdesc.h>
}
#include "image.h"
#include "exceptions.h"
#include "scaler.h"
+#include "i18n.h"
+
using namespace std;
using namespace boost;
using libdcp::Size;
int
Image::lines (int n) const
{
- switch (_pixel_format) {
- case PIX_FMT_YUV420P:
- if (n == 0) {
- return size().height;
- } else {
- return size().height / 2;
- }
- break;
- case PIX_FMT_RGB24:
- case PIX_FMT_RGBA:
- case PIX_FMT_YUV422P10LE:
- case PIX_FMT_YUV422P:
- case PIX_FMT_YUV444P:
- case PIX_FMT_YUV444P9BE:
- case PIX_FMT_YUV444P9LE:
- case PIX_FMT_YUV444P10BE:
- case PIX_FMT_YUV444P10LE:
+ if (n == 0) {
return size().height;
- default:
- throw PixelFormatError ("lines()", _pixel_format);
}
-
- return 0;
+
+ AVPixFmtDescriptor const * d = av_pix_fmt_desc_get(_pixel_format);
+ if (!d) {
+ throw PixelFormatError (N_("lines()"), _pixel_format);
+ }
+
+ return size().height / pow(2, d->log2_chroma_h);
}
/** @return Number of components */
int
Image::components () const
{
- switch (_pixel_format) {
- case PIX_FMT_YUV420P:
- case PIX_FMT_YUV422P10LE:
- case PIX_FMT_YUV422P:
- case PIX_FMT_YUV444P:
- case PIX_FMT_YUV444P9BE:
- case PIX_FMT_YUV444P9LE:
- case PIX_FMT_YUV444P10BE:
- case PIX_FMT_YUV444P10LE:
- return 3;
- case PIX_FMT_RGB24:
- case PIX_FMT_RGBA:
- return 1;
- default:
- throw PixelFormatError ("components()", _pixel_format);
+ AVPixFmtDescriptor const * d = av_pix_fmt_desc_get(_pixel_format);
+ if (!d) {
+ throw PixelFormatError (N_("components()"), _pixel_format);
}
- return 0;
+ if ((d->flags & PIX_FMT_PLANAR) == 0) {
+ return 1;
+ }
+
+ return d->nb_components;
}
shared_ptr<Image>
break;
case PIX_FMT_YUV422P10LE:
case PIX_FMT_YUV422P:
+ case PIX_FMT_UYVY422:
pp_format = PP_FORMAT_422;
break;
case PIX_FMT_YUV444P:
case PIX_FMT_YUV444P10LE:
pp_format = PP_FORMAT_444;
default:
- throw PixelFormatError ("post_process", pixel_format());
+ throw PixelFormatError (N_("post_process"), pixel_format());
}
pp_mode* mode = pp_get_mode_by_name_and_quality (pp.c_str (), PP_QUALITY_MAX);
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;
case PIX_FMT_YUV422P:
case PIX_FMT_YUV444P:
memset (data()[0], 0, lines(0) * stride()[0]);
- memset (data()[1], 0x7f, lines(1) * stride()[1]);
- memset (data()[2], 0x7f, lines(2) * stride()[2]);
+ memset (data()[1], eight_bit_uv, lines(1) * stride()[1]);
+ memset (data()[2], eight_bit_uv, lines(2) * stride()[2]);
break;
case PIX_FMT_YUV422P9LE:
memset (data()[0], 0, lines(0) * stride()[0]);
break;
+ case PIX_FMT_UYVY422:
+ {
+ int const Y = lines(0);
+ int const X = line_size()[0];
+ uint8_t* p = data()[0];
+ for (int y = 0; y < Y; ++y) {
+ for (int x = 0; x < X / 4; ++x) {
+ *p++ = eight_bit_uv; // Cb
+ *p++ = 0; // Y0
+ *p++ = eight_bit_uv; // Cr
+ *p++ = 0; // Y1
+ }
+ }
+ break;
+ }
+
default:
- assert (false);
+ throw PixelFormatError (N_("make_black()"), _pixel_format);
}
}
float
Image::bytes_per_pixel (int c) const
{
- if (c == 3) {
+ AVPixFmtDescriptor const * d = av_pix_fmt_desc_get(_pixel_format);
+ if (!d) {
+ throw PixelFormatError (N_("lines()"), _pixel_format);
+ }
+
+ if (c >= components()) {
return 0;
}
+
+ float bpp[4] = { 0, 0, 0, 0 };
+
+ bpp[0] = floor ((d->comp[0].depth_minus1 + 1 + 7) / 8);
+ if (d->nb_components > 1) {
+ bpp[1] = floor ((d->comp[1].depth_minus1 + 1 + 7) / 8) / pow (2, d->log2_chroma_w);
+ }
+ if (d->nb_components > 2) {
+ bpp[2] = floor ((d->comp[2].depth_minus1 + 1 + 7) / 8) / pow (2, d->log2_chroma_w);
+ }
+ if (d->nb_components > 3) {
+ bpp[3] = floor ((d->comp[3].depth_minus1 + 1 + 7) / 8) / pow (2, d->log2_chroma_w);
+ }
- switch (_pixel_format) {
- case PIX_FMT_RGB24:
- if (c == 0) {
- return 3;
- } else {
- return 0;
- }
- case PIX_FMT_RGBA:
- if (c == 0) {
- return 4;
- } else {
- return 0;
- }
- case PIX_FMT_YUV420P:
- case PIX_FMT_YUV422P:
- if (c == 0) {
- return 1;
- } else {
- return 0.5;
- }
- case PIX_FMT_YUV422P10LE:
- if (c == 0) {
- return 2;
- } else {
- return 1;
- }
- case PIX_FMT_YUV444P:
- return 3;
- case PIX_FMT_YUV444P9BE:
- case PIX_FMT_YUV444P9LE:
- case PIX_FMT_YUV444P10LE:
- case PIX_FMT_YUV444P10BE:
- return 6;
- default:
- assert (false);
+ if ((d->flags & PIX_FMT_PLANAR) == 0) {
+ /* Not planar; sum them up */
+ return bpp[0] + bpp[1] + bpp[2] + bpp[3];
}
- return 0;
+ return bpp[c];
}
-
/** Construct a SimpleImage of a given size and format, allocating memory
* as required.
*
allocate ();
for (int i = 0; i < components(); ++i) {
- memcpy (_data[i], other._data[i], _line_size[i] * lines(i));
+ uint8_t* p = _data[i];
+ uint8_t* q = other._data[i];
+ for (int j = 0; j < lines(i); ++j) {
+ memcpy (p, q, _line_size[i]);
+ p += stride()[i];
+ q += other.stride()[i];
+ }
+ }
+}
+
+SimpleImage::SimpleImage (shared_ptr<const Image> other)
+ : Image (*other.get())
+{
+ _size = other->size ();
+ _aligned = true;
+
+ allocate ();
+
+ for (int i = 0; i < components(); ++i) {
+ assert(line_size()[i] == other->line_size()[i]);
+ uint8_t* p = _data[i];
+ uint8_t* q = other->data()[i];
+ for (int j = 0; j < lines(i); ++j) {
+ memcpy (p, q, line_size()[i]);
+ p += stride()[i];
+ q += other->stride()[i];
+ }
}
}
return _aligned;
}
-FilterBufferImage::FilterBufferImage (AVPixelFormat p, AVFilterBufferRef* b)
- : Image (p)
- , _buffer (b)
+FrameImage::FrameImage (AVFrame* frame)
+ : Image (static_cast<AVPixelFormat> (frame->format))
+ , _frame (frame)
{
_line_size = (int *) av_malloc (4 * sizeof (int));
_line_size[0] = _line_size[1] = _line_size[2] = _line_size[3] = 0;
}
}
-FilterBufferImage::~FilterBufferImage ()
+FrameImage::~FrameImage ()
{
- avfilter_unref_buffer (_buffer);
+ av_frame_free (&_frame);
av_free (_line_size);
}
uint8_t **
-FilterBufferImage::data () const
+FrameImage::data () const
{
- return _buffer->data;
+ return _frame->data;
}
int *
-FilterBufferImage::line_size () const
+FrameImage::line_size () const
{
return _line_size;
}
int *
-FilterBufferImage::stride () const
+FrameImage::stride () const
{
- /* I've seen images where the _buffer->linesize is larger than the width
- (by a small amount), suggesting that _buffer->linesize is what we call
- stride. But I'm not sure.
- */
- return _buffer->linesize;
+ /* AVFrame's `linesize' is what we call `stride' */
+ return _frame->linesize;
}
libdcp::Size
-FilterBufferImage::size () const
+FrameImage::size () const
{
- return libdcp::Size (_buffer->video->w, _buffer->video->h);
+ return libdcp::Size (_frame->width, _frame->height);
}
bool
-FilterBufferImage::aligned () const
+FrameImage::aligned () const
{
- /* XXX? */
return true;
}
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