| // Copyright 2020 Google Inc. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| #include "src/piex_types.h" |
| |
| #ifndef PIEX_PIEX_CR3_H_ |
| #define PIEX_PIEX_CR3_H_ |
| |
| namespace piex { |
| |
| // Gets the EXIF orientation of a CR3 stream, returning true on success. |
| bool Cr3GetOrientation(StreamInterface* stream, std::uint32_t* orientation); |
| |
| // Gets preview images of a CR3 stream, returning kOk on success. Assumes the |
| // stream is a CR3 stream. |
| // |
| // Canon's CR3 is based on ISO/IEC 14496-12: ISO base media file format. (CR2 is |
| // TIFF based.) A Canon CR3 contains multiple embedded images. Most cameras |
| // output CR3 files that contain a full-size JPEG, a 1620x1080 preview JPEG, and |
| // a 160x120 thumbnail JPEG. |
| // The Canon EOS 1D X Mark III, though, contains a full-size HEVC image, a |
| // 1620x1080 preview JPEG, and a 160x120 thumbnail JPEG. |
| // Until support for HEVC is added, this method returns the largest embedded |
| // JPEG in preview_image_data->preview. |
| // |
| Error Cr3GetPreviewData(StreamInterface* stream, |
| PreviewImageData* preview_image_data); |
| } // namespace piex |
| |
| #endif // PIEX_PIEX_CR3_H_ |