1 /*
2 * Copyright (c) 2017 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 #include "media/engine/scopedvideodecoder.h"
12
13 #include <vector>
14
15 #include "api/video_codecs/video_decoder.h"
16
17 namespace cricket {
18
19 namespace {
20
21 class ScopedVideoDecoder : public webrtc::VideoDecoder {
22 public:
23 ScopedVideoDecoder(WebRtcVideoDecoderFactory* factory,
24 webrtc::VideoDecoder* decoder);
25
26 int32_t InitDecode(const webrtc::VideoCodec* codec_settings,
27 int32_t number_of_cores) override;
28 int32_t RegisterDecodeCompleteCallback(
29 webrtc::DecodedImageCallback* callback) override;
30 int32_t Release() override;
31 int32_t Decode(const webrtc::EncodedImage& input_image,
32 bool missing_frames,
33 const webrtc::RTPFragmentationHeader* fragmentation,
34 const webrtc::CodecSpecificInfo* codec_specific_info,
35 int64_t render_time_ms) override;
36 bool PrefersLateDecoding() const override;
37 const char* ImplementationName() const override;
38
39 ~ScopedVideoDecoder() override;
40
41 private:
42 WebRtcVideoDecoderFactory* factory_;
43 webrtc::VideoDecoder* decoder_;
44 };
45
ScopedVideoDecoder(WebRtcVideoDecoderFactory * factory,webrtc::VideoDecoder * decoder)46 ScopedVideoDecoder::ScopedVideoDecoder(WebRtcVideoDecoderFactory* factory,
47 webrtc::VideoDecoder* decoder)
48 : factory_(factory), decoder_(decoder) {}
49
InitDecode(const webrtc::VideoCodec * codec_settings,int32_t number_of_cores)50 int32_t ScopedVideoDecoder::InitDecode(const webrtc::VideoCodec* codec_settings,
51 int32_t number_of_cores) {
52 return decoder_->InitDecode(codec_settings, number_of_cores);
53 }
54
RegisterDecodeCompleteCallback(webrtc::DecodedImageCallback * callback)55 int32_t ScopedVideoDecoder::RegisterDecodeCompleteCallback(
56 webrtc::DecodedImageCallback* callback) {
57 return decoder_->RegisterDecodeCompleteCallback(callback);
58 }
59
Release()60 int32_t ScopedVideoDecoder::Release() {
61 return decoder_->Release();
62 }
63
Decode(const webrtc::EncodedImage & input_image,bool missing_frames,const webrtc::RTPFragmentationHeader * fragmentation,const webrtc::CodecSpecificInfo * codec_specific_info,int64_t render_time_ms)64 int32_t ScopedVideoDecoder::Decode(
65 const webrtc::EncodedImage& input_image,
66 bool missing_frames,
67 const webrtc::RTPFragmentationHeader* fragmentation,
68 const webrtc::CodecSpecificInfo* codec_specific_info,
69 int64_t render_time_ms) {
70 return decoder_->Decode(input_image, missing_frames, fragmentation,
71 codec_specific_info, render_time_ms);
72 }
73
PrefersLateDecoding() const74 bool ScopedVideoDecoder::PrefersLateDecoding() const {
75 return decoder_->PrefersLateDecoding();
76 }
77
ImplementationName() const78 const char* ScopedVideoDecoder::ImplementationName() const {
79 return decoder_->ImplementationName();
80 }
81
~ScopedVideoDecoder()82 ScopedVideoDecoder::~ScopedVideoDecoder() {
83 factory_->DestroyVideoDecoder(decoder_);
84 }
85
86 } // namespace
87
CreateScopedVideoDecoder(WebRtcVideoDecoderFactory * factory,const VideoCodec & codec,VideoDecoderParams params)88 std::unique_ptr<webrtc::VideoDecoder> CreateScopedVideoDecoder(
89 WebRtcVideoDecoderFactory* factory,
90 const VideoCodec& codec,
91 VideoDecoderParams params) {
92 webrtc::VideoDecoder* decoder =
93 factory->CreateVideoDecoderWithParams(codec, params);
94 if (!decoder)
95 return nullptr;
96 return std::unique_ptr<webrtc::VideoDecoder>(
97 new ScopedVideoDecoder(factory, decoder));
98 }
99
100 } // namespace cricket
101