diff options
Diffstat (limited to 'src/lib/image.cc')
| -rw-r--r-- | src/lib/image.cc | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/src/lib/image.cc b/src/lib/image.cc index 177219813..bba5eeda1 100644 --- a/src/lib/image.cc +++ b/src/lib/image.cc @@ -87,7 +87,9 @@ Image::components () const /** Crop this image, scale it to `inter_size' and then place it in a black frame of `out_size' */ shared_ptr<Image> -Image::crop_scale_window (Crop crop, dcp::Size inter_size, dcp::Size out_size, AVPixelFormat out_format, bool out_aligned) const +Image::crop_scale_window ( + Crop crop, dcp::Size inter_size, dcp::Size out_size, dcp::YUVToRGB yuv_to_rgb, AVPixelFormat out_format, bool out_aligned + ) const { /* Empirical testing suggests that sws_scale() will crash if the input image is not aligned. @@ -115,6 +117,19 @@ Image::crop_scale_window (Crop crop, dcp::Size inter_size, dcp::Size out_size, A throw StringError (N_("Could not allocate SwsContext")); } + DCPOMATIC_ASSERT (yuv_to_rgb < dcp::YUV_TO_RGB_COUNT); + int const lut[dcp::YUV_TO_RGB_COUNT] = { + SWS_CS_ITU601, + SWS_CS_ITU709 + }; + + sws_setColorspaceDetails ( + scale_context, + sws_getCoefficients (lut[yuv_to_rgb]), 0, + sws_getCoefficients (lut[yuv_to_rgb]), 0, + 0, 1 << 16, 1 << 16 + ); + /* Prepare input data pointers with crop */ uint8_t* scale_in_data[components()]; for (int c = 0; c < components(); ++c) { @@ -142,7 +157,7 @@ Image::crop_scale_window (Crop crop, dcp::Size inter_size, dcp::Size out_size, A } shared_ptr<Image> -Image::scale (dcp::Size out_size, AVPixelFormat out_format, bool out_aligned) const +Image::scale (dcp::Size out_size, dcp::YUVToRGB yuv_to_rgb, AVPixelFormat out_format, bool out_aligned) const { /* Empirical testing suggests that sws_scale() will crash if the input image is not aligned. @@ -157,6 +172,19 @@ Image::scale (dcp::Size out_size, AVPixelFormat out_format, bool out_aligned) co SWS_BICUBIC, 0, 0, 0 ); + DCPOMATIC_ASSERT (yuv_to_rgb < dcp::YUV_TO_RGB_COUNT); + int const lut[dcp::YUV_TO_RGB_COUNT] = { + SWS_CS_ITU601, + SWS_CS_ITU709 + }; + + sws_setColorspaceDetails ( + scale_context, + sws_getCoefficients (lut[yuv_to_rgb]), 0, + sws_getCoefficients (lut[yuv_to_rgb]), 0, + 0, 1 << 16, 1 << 16 + ); + sws_scale ( scale_context, data(), stride(), |