1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "content/renderer/media/rtc_video_encoder_factory.h"
7 #include "content/common/gpu/client/gpu_video_encode_accelerator_host.h"
8 #include "content/renderer/media/rtc_video_encoder.h"
9 #include "media/filters/gpu_video_accelerator_factories.h"
10 #include "media/video/video_encode_accelerator.h"
16 // Translate from media::VideoEncodeAccelerator::SupportedProfile to
17 // cricket::WebRtcVideoEncoderFactory::VideoCodec
18 cricket::WebRtcVideoEncoderFactory::VideoCodec VEAToWebRTCCodec(
19 const media::VideoEncodeAccelerator::SupportedProfile& profile) {
20 webrtc::VideoCodecType type = webrtc::kVideoCodecUnknown;
22 int width = 0, height = 0, fps = 0;
24 if (profile.profile >= media::VP8PROFILE_MIN &&
25 profile.profile <= media::VP8PROFILE_MAX) {
26 type = webrtc::kVideoCodecVP8;
28 } else if (profile.profile >= media::H264PROFILE_MIN &&
29 profile.profile <= media::H264PROFILE_MAX) {
30 type = webrtc::kVideoCodecGeneric;
34 if (type != webrtc::kVideoCodecUnknown) {
35 width = profile.max_resolution.width();
36 height = profile.max_resolution.height();
37 fps = profile.max_framerate.numerator;
38 DCHECK_EQ(profile.max_framerate.denominator, 1U);
41 return cricket::WebRtcVideoEncoderFactory::VideoCodec(
42 type, name, width, height, fps);
45 // Translate from cricket::WebRtcVideoEncoderFactory::VideoCodec to
46 // media::VideoCodecProfile. Pick a default profile for each codec type.
47 media::VideoCodecProfile WebRTCCodecToVideoCodecProfile(
48 webrtc::VideoCodecType type) {
50 case webrtc::kVideoCodecVP8:
51 return media::VP8PROFILE_MAIN;
52 case webrtc::kVideoCodecGeneric:
53 return media::H264PROFILE_MAIN;
55 return media::VIDEO_CODEC_PROFILE_UNKNOWN;
59 } // anonymous namespace
61 RTCVideoEncoderFactory::RTCVideoEncoderFactory(
62 const scoped_refptr<media::GpuVideoAcceleratorFactories>& gpu_factories)
63 : gpu_factories_(gpu_factories) {
64 // Query media::VideoEncodeAccelerator (statically) for our supported codecs.
65 std::vector<media::VideoEncodeAccelerator::SupportedProfile> profiles =
66 GpuVideoEncodeAcceleratorHost::GetSupportedProfiles();
67 for (size_t i = 0; i < profiles.size(); ++i) {
68 VideoCodec codec = VEAToWebRTCCodec(profiles[i]);
69 if (codec.type != webrtc::kVideoCodecUnknown)
70 codecs_.push_back(codec);
74 RTCVideoEncoderFactory::~RTCVideoEncoderFactory() {}
76 webrtc::VideoEncoder* RTCVideoEncoderFactory::CreateVideoEncoder(
77 webrtc::VideoCodecType type) {
79 for (size_t i = 0; i < codecs_.size(); ++i) {
80 if (codecs_[i].type == type) {
87 return new RTCVideoEncoder(
88 type, WebRTCCodecToVideoCodecProfile(type), gpu_factories_);
91 void RTCVideoEncoderFactory::AddObserver(Observer* observer) {
92 // No-op: our codec list is populated on installation.
95 void RTCVideoEncoderFactory::RemoveObserver(Observer* observer) {}
97 const std::vector<cricket::WebRtcVideoEncoderFactory::VideoCodec>&
98 RTCVideoEncoderFactory::codecs() const {
102 void RTCVideoEncoderFactory::DestroyVideoEncoder(
103 webrtc::VideoEncoder* encoder) {
107 } // namespace content