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a1a7c638ec
Also move ScalabilityModeToString to api and add RTC_EXPORT so that Chromium can use it. Bug: chromium:986069 Change-Id: I5dbbb6de9b14ca20f3ae0630552dcd44595ad5ef Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/267780 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Daniel.L (Byoungchan) Lee <daniel.l@hpcnt.com> Cr-Commit-Position: refs/heads/main@{#37444}
118 lines
4 KiB
C++
118 lines
4 KiB
C++
/*
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* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/video_coding/codecs/vp9/include/vp9.h"
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#include <memory>
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#include "absl/container/inlined_vector.h"
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#include "api/transport/field_trial_based_config.h"
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#include "api/video_codecs/scalability_mode.h"
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#include "api/video_codecs/sdp_video_format.h"
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#include "api/video_codecs/vp9_profile.h"
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#include "modules/video_coding/codecs/vp9/libvpx_vp9_decoder.h"
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#include "modules/video_coding/codecs/vp9/libvpx_vp9_encoder.h"
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#include "modules/video_coding/svc/create_scalability_structure.h"
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#include "rtc_base/checks.h"
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#include "vpx/vp8cx.h"
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#include "vpx/vp8dx.h"
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#include "vpx/vpx_codec.h"
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namespace webrtc {
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std::vector<SdpVideoFormat> SupportedVP9Codecs(bool add_scalability_modes) {
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#ifdef RTC_ENABLE_VP9
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// Profile 2 might not be available on some platforms until
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// https://bugs.chromium.org/p/webm/issues/detail?id=1544 is solved.
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static bool vpx_supports_high_bit_depth =
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(vpx_codec_get_caps(vpx_codec_vp9_cx()) & VPX_CODEC_CAP_HIGHBITDEPTH) !=
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0 &&
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(vpx_codec_get_caps(vpx_codec_vp9_dx()) & VPX_CODEC_CAP_HIGHBITDEPTH) !=
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0;
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absl::InlinedVector<ScalabilityMode, kScalabilityModeCount> scalability_modes;
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if (add_scalability_modes) {
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for (const auto scalability_mode : kAllScalabilityModes) {
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if (ScalabilityStructureConfig(scalability_mode).has_value()) {
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scalability_modes.push_back(scalability_mode);
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}
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}
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}
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std::vector<SdpVideoFormat> supported_formats{SdpVideoFormat(
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cricket::kVp9CodecName,
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{{kVP9FmtpProfileId, VP9ProfileToString(VP9Profile::kProfile0)}},
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scalability_modes)};
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if (vpx_supports_high_bit_depth) {
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supported_formats.push_back(SdpVideoFormat(
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cricket::kVp9CodecName,
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{{kVP9FmtpProfileId, VP9ProfileToString(VP9Profile::kProfile2)}},
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scalability_modes));
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}
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return supported_formats;
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#else
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return std::vector<SdpVideoFormat>();
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#endif
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}
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std::vector<SdpVideoFormat> SupportedVP9DecoderCodecs() {
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#ifdef RTC_ENABLE_VP9
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std::vector<SdpVideoFormat> supported_formats = SupportedVP9Codecs();
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// The WebRTC internal decoder supports VP9 profile 1 and 3. However, there's
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// currently no way of sending VP9 profile 1 or 3 using the internal encoder.
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// It would require extended support for I444, I422, and I440 buffers.
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supported_formats.push_back(SdpVideoFormat(
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cricket::kVp9CodecName,
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{{kVP9FmtpProfileId, VP9ProfileToString(VP9Profile::kProfile1)}}));
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supported_formats.push_back(SdpVideoFormat(
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cricket::kVp9CodecName,
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{{kVP9FmtpProfileId, VP9ProfileToString(VP9Profile::kProfile3)}}));
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return supported_formats;
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#else
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return std::vector<SdpVideoFormat>();
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#endif
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}
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std::unique_ptr<VP9Encoder> VP9Encoder::Create() {
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#ifdef RTC_ENABLE_VP9
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return std::make_unique<LibvpxVp9Encoder>(cricket::VideoCodec(),
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LibvpxInterface::Create(),
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FieldTrialBasedConfig());
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#else
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RTC_DCHECK_NOTREACHED();
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return nullptr;
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#endif
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}
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std::unique_ptr<VP9Encoder> VP9Encoder::Create(
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const cricket::VideoCodec& codec) {
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#ifdef RTC_ENABLE_VP9
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return std::make_unique<LibvpxVp9Encoder>(codec, LibvpxInterface::Create(),
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FieldTrialBasedConfig());
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#else
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RTC_DCHECK_NOTREACHED();
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return nullptr;
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#endif
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}
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bool VP9Encoder::SupportsScalabilityMode(ScalabilityMode scalability_mode) {
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return ScalabilityStructureConfig(scalability_mode).has_value();
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}
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std::unique_ptr<VP9Decoder> VP9Decoder::Create() {
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#ifdef RTC_ENABLE_VP9
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return std::make_unique<LibvpxVp9Decoder>();
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#else
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RTC_DCHECK_NOTREACHED();
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return nullptr;
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#endif
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}
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} // namespace webrtc
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