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Side by Side Diff: webrtc/sdk/objc/Framework/Classes/h264_video_toolbox_decoder.h

Issue 2862543002: Split iOS sdk in to separate targets (Closed)
Patch Set: rebase and minor fixes Created 3 years, 7 months ago
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1 /*
2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 *
10 */
11
12 #ifndef WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_H264_VIDEO_TOOLBOX_DECODER_H_
13 #define WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_H264_VIDEO_TOOLBOX_DECODER_H_
14
15 #include "webrtc/modules/video_coding/codecs/h264/include/h264.h"
16
17 #include <VideoToolbox/VideoToolbox.h>
18
19 // This file provides a H264 encoder implementation using the VideoToolbox
20 // APIs. Since documentation is almost non-existent, this is largely based on
21 // the information in the VideoToolbox header files, a talk from WWDC 2014 and
22 // experimentation.
23
24 namespace webrtc {
25
26 class H264VideoToolboxDecoder : public H264Decoder {
27 public:
28 H264VideoToolboxDecoder();
29
30 ~H264VideoToolboxDecoder() override;
31
32 int InitDecode(const VideoCodec* video_codec, int number_of_cores) override;
33
34 int Decode(const EncodedImage& input_image,
35 bool missing_frames,
36 const RTPFragmentationHeader* fragmentation,
37 const CodecSpecificInfo* codec_specific_info,
38 int64_t render_time_ms) override;
39
40 int RegisterDecodeCompleteCallback(DecodedImageCallback* callback) override;
41
42 int Release() override;
43
44 const char* ImplementationName() const override;
45
46 private:
47 int ResetDecompressionSession();
48 void ConfigureDecompressionSession();
49 void DestroyDecompressionSession();
50 void SetVideoFormat(CMVideoFormatDescriptionRef video_format);
51
52 DecodedImageCallback* callback_;
53 CMVideoFormatDescriptionRef video_format_;
54 VTDecompressionSessionRef decompression_session_;
55 }; // H264VideoToolboxDecoder
56
57 } // namespace webrtc
58
59 #endif // WEBRTC_SDK_OBJC_FRAMEWORK_CLASSES_H264_VIDEO_TOOLBOX_DECODER_H_
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