1 /*
2 * Copyright (c) 2016 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/internal_decoder_factory.h"
12
13 #include "absl/strings/match.h"
14 #include "api/video_codecs/sdp_video_format.h"
15 #include "media/base/codec.h"
16 #include "media/base/media_constants.h"
17 #include "modules/video_coding/codecs/av1/libaom_av1_decoder.h"
18 #include "modules/video_coding/codecs/h264/include/h264.h"
19 #include "modules/video_coding/codecs/vp8/include/vp8.h"
20 #include "modules/video_coding/codecs/vp9/include/vp9.h"
21 #include "rtc_base/checks.h"
22 #include "rtc_base/logging.h"
23
24 namespace webrtc {
25
26 namespace {
27
IsFormatSupported(const std::vector<webrtc::SdpVideoFormat> & supported_formats,const webrtc::SdpVideoFormat & format)28 bool IsFormatSupported(
29 const std::vector<webrtc::SdpVideoFormat>& supported_formats,
30 const webrtc::SdpVideoFormat& format) {
31 for (const webrtc::SdpVideoFormat& supported_format : supported_formats) {
32 if (cricket::IsSameCodec(format.name, format.parameters,
33 supported_format.name,
34 supported_format.parameters)) {
35 return true;
36 }
37 }
38 return false;
39 }
40
41 } // namespace
42
GetSupportedFormats() const43 std::vector<SdpVideoFormat> InternalDecoderFactory::GetSupportedFormats()
44 const {
45 std::vector<SdpVideoFormat> formats;
46 formats.push_back(SdpVideoFormat(cricket::kVp8CodecName));
47 for (const SdpVideoFormat& format : SupportedVP9DecoderCodecs())
48 formats.push_back(format);
49 for (const SdpVideoFormat& h264_format : SupportedH264Codecs())
50 formats.push_back(h264_format);
51 if (kIsLibaomAv1DecoderSupported)
52 formats.push_back(SdpVideoFormat(cricket::kAv1CodecName));
53 return formats;
54 }
55
CreateVideoDecoder(const SdpVideoFormat & format)56 std::unique_ptr<VideoDecoder> InternalDecoderFactory::CreateVideoDecoder(
57 const SdpVideoFormat& format) {
58 if (!IsFormatSupported(GetSupportedFormats(), format)) {
59 RTC_LOG(LS_ERROR) << "Trying to create decoder for unsupported format";
60 return nullptr;
61 }
62
63 if (absl::EqualsIgnoreCase(format.name, cricket::kVp8CodecName))
64 return VP8Decoder::Create();
65 if (absl::EqualsIgnoreCase(format.name, cricket::kVp9CodecName))
66 return VP9Decoder::Create();
67 if (absl::EqualsIgnoreCase(format.name, cricket::kH264CodecName))
68 return H264Decoder::Create();
69 if (kIsLibaomAv1DecoderSupported &&
70 absl::EqualsIgnoreCase(format.name, cricket::kAv1CodecName))
71 return CreateLibaomAv1Decoder();
72
73 RTC_NOTREACHED();
74 return nullptr;
75 }
76
77 } // namespace webrtc
78