Mercurial > hg > orthanc
annotate OrthancFramework/Sources/HttpServer/HttpStreamTranscoder.h @ 4642:69bbb4bd35cb
PngWriter recreates a new libpng context for each encoding
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 28 Apr 2021 11:22:39 +0200 |
| parents | d9473bd5ed43 |
| children | 7053502fbf97 |
| rev | line source |
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| 1525 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
| 1525 | 4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium |
| 1525 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
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8 * modify it under the terms of the GNU Lesser General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
| 1525 | 11 * |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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parents:
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15 * Lesser General Public License for more details. |
| 1525 | 16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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18 * License along with this program. If not, see |
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parents:
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19 * <http://www.gnu.org/licenses/>. |
| 1525 | 20 **/ |
| 21 | |
| 22 | |
| 23 #pragma once | |
| 24 | |
| 25 #include "BufferHttpSender.h" | |
| 26 | |
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27 #include "../Compatibility.h" |
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28 |
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29 #include <memory> // For std::unique_ptr |
| 1525 | 30 |
| 31 namespace Orthanc | |
| 32 { | |
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33 class ORTHANC_PUBLIC HttpStreamTranscoder : public IHttpStreamAnswer |
| 1525 | 34 { |
| 35 private: | |
| 36 IHttpStreamAnswer& source_; | |
| 37 CompressionType sourceCompression_; | |
| 38 uint64_t bytesToSkip_; | |
| 39 uint64_t skipped_; | |
| 40 uint64_t currentChunkOffset_; | |
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41 bool ready_; |
| 1525 | 42 |
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43 std::unique_ptr<BufferHttpSender> uncompressed_; |
| 1525 | 44 |
| 45 void ReadSource(std::string& buffer); | |
| 46 | |
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47 HttpCompression SetupZlibCompression(bool deflateAllowed); |
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48 |
| 1525 | 49 public: |
| 50 HttpStreamTranscoder(IHttpStreamAnswer& source, | |
| 4298 | 51 CompressionType compression); |
| 1525 | 52 |
| 53 // This is the first method to be called | |
| 54 virtual HttpCompression SetupHttpCompression(bool gzipAllowed, | |
| 4201 | 55 bool deflateAllowed) ORTHANC_OVERRIDE; |
| 1525 | 56 |
| 4298 | 57 virtual bool HasContentFilename(std::string& filename) ORTHANC_OVERRIDE; |
| 1525 | 58 |
| 4298 | 59 virtual std::string GetContentType() ORTHANC_OVERRIDE; |
| 1525 | 60 |
| 4201 | 61 virtual uint64_t GetContentLength() ORTHANC_OVERRIDE; |
| 1525 | 62 |
| 4201 | 63 virtual bool ReadNextChunk() ORTHANC_OVERRIDE; |
| 1525 | 64 |
| 4201 | 65 virtual const char* GetChunkContent() ORTHANC_OVERRIDE; |
| 1525 | 66 |
| 4201 | 67 virtual size_t GetChunkSize() ORTHANC_OVERRIDE; |
| 1525 | 68 }; |
| 69 } |