X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fimage.cc;h=f28652d4e2cdac846773df4e202e69902d0c67cf;hb=43b4e55710271c797b5d251c891047ed4da20e10;hp=2355d22e5b959ab12af8c9f8bae144d781649315;hpb=fec9770dd454fdb6902180322fd3d221f2c86ed2;p=dcpomatic.git diff --git a/src/lib/image.cc b/src/lib/image.cc index 2355d22e5..f28652d4e 100644 --- a/src/lib/image.cc +++ b/src/lib/image.cc @@ -35,6 +35,7 @@ extern "C" { #include #include #include +#include } #include "image.h" #include "exceptions.h" @@ -58,55 +59,32 @@ Image::swap (Image& other) 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: - case PIX_FMT_UYVY422: + if (n == 0) { return size().height; - default: + } + + AVPixFmtDescriptor const * d = av_pix_fmt_desc_get(_pixel_format); + if (!d) { throw PixelFormatError (N_("lines()"), _pixel_format); } - - return 0; + + return size().height / pow(2.0f, 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: - case PIX_FMT_UYVY422: - return 1; - default: + 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 @@ -295,13 +273,13 @@ void Image::make_black () { /* U/V black value for 8-bit colour */ - static uint8_t const eight_bit_uv = (1 << 7) - 1; - + 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; - + static uint16_t const nine_bit_uv = (1 << 8) - 1; /* U/V black value for 10-bit colour */ - static uint16_t const ten_bit_uv = (1 << 9) - 1; + static uint16_t const ten_bit_uv = (1 << 9) - 1; + /* U/V black value for 16-bit colour */ + static uint16_t const sixteen_bit_uv = (1 << 15) - 1; switch (_pixel_format) { case PIX_FMT_YUV420P: @@ -312,6 +290,14 @@ Image::make_black () memset (data()[2], eight_bit_uv, lines(2) * stride()[2]); break; + case PIX_FMT_YUVJ420P: + case PIX_FMT_YUVJ422P: + case PIX_FMT_YUVJ444P: + memset (data()[0], 0, lines(0) * stride()[0]); + memset (data()[1], eight_bit_uv + 1, lines(1) * stride()[1]); + memset (data()[2], eight_bit_uv + 1, lines(2) * stride()[2]); + break; + case PIX_FMT_YUV422P9LE: case PIX_FMT_YUV444P9LE: yuv_16_black (nine_bit_uv); @@ -326,11 +312,17 @@ Image::make_black () case PIX_FMT_YUV444P10LE: yuv_16_black (ten_bit_uv); break; + + case PIX_FMT_YUV422P16LE: + case PIX_FMT_YUV444P16LE: + yuv_16_black (sixteen_bit_uv); + break; case PIX_FMT_YUV444P10BE: case PIX_FMT_YUV422P10BE: yuv_16_black (swap_16 (ten_bit_uv)); - + break; + case PIX_FMT_RGB24: memset (data()[0], 0, lines(0) * stride()[0]); break; @@ -420,53 +412,36 @@ Image::write_to_socket (shared_ptr socket) const 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 (2.0f, d->log2_chroma_w); + } + if (d->nb_components > 2) { + bpp[2] = floor ((d->comp[2].depth_minus1 + 1 + 7) / 8) / pow (2.0f, d->log2_chroma_w); + } + if (d->nb_components > 3) { + bpp[3] = floor ((d->comp[3].depth_minus1 + 1 + 7) / 8) / pow (2.0f, 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_UYVY422: - return 2; - 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: - throw PixelFormatError (N_("bytes_per_pixel()"), _pixel_format); + 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. * @@ -502,14 +477,58 @@ SimpleImage::allocate () SimpleImage::SimpleImage (SimpleImage const & other) : Image (other) + , _size (other._size) + , _aligned (other._aligned) +{ + allocate (); + + for (int i = 0; i < components(); ++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 (AVFrame* frame) + : Image (static_cast (frame->format)) + , _size (frame->width, frame->height) + , _aligned (true) { - _size = other._size; - _aligned = other._aligned; - 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 = frame->data[i]; + for (int j = 0; j < lines(i); ++j) { + memcpy (p, q, _line_size[i]); + p += stride()[i]; + /* AVFrame's linesize is what we call `stride' */ + q += frame->linesize[i]; + } + } +} + +SimpleImage::SimpleImage (shared_ptr 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]; + } } } @@ -583,59 +602,6 @@ SimpleImage::aligned () const return _aligned; } -FilterBufferImage::FilterBufferImage (AVPixelFormat p, AVFilterBufferRef* b) - : Image (p) - , _buffer (b) -{ - _line_size = (int *) av_malloc (4 * sizeof (int)); - _line_size[0] = _line_size[1] = _line_size[2] = _line_size[3] = 0; - - for (int i = 0; i < components(); ++i) { - _line_size[i] = size().width * bytes_per_pixel(i); - } -} - -FilterBufferImage::~FilterBufferImage () -{ - avfilter_unref_buffer (_buffer); - av_free (_line_size); -} - -uint8_t ** -FilterBufferImage::data () const -{ - return _buffer->data; -} - -int * -FilterBufferImage::line_size () const -{ - return _line_size; -} - -int * -FilterBufferImage::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; -} - -libdcp::Size -FilterBufferImage::size () const -{ - return libdcp::Size (_buffer->video->w, _buffer->video->h); -} - -bool -FilterBufferImage::aligned () const -{ - /* XXX? */ - return true; -} - RGBPlusAlphaImage::RGBPlusAlphaImage (shared_ptr im) : SimpleImage (im->pixel_format(), im->size(), false) {