1 files changed, 119 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/video_coding/codecs/vp9/vp9.cc b/third_party/libwebrtc/modules/video_coding/codecs/vp9/vp9.cc
new file mode 100644
index 0000000000..c1dbf3a451
--- /dev/null
+++ b/third_party/libwebrtc/modules/video_coding/codecs/vp9/vp9.cc
@@ -0,0 +1,119 @@
+/*
+ *  Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "modules/video_coding/codecs/vp9/include/vp9.h"
+
+#include <memory>
+
+#include "absl/container/inlined_vector.h"
+#include "api/transport/field_trial_based_config.h"
+#include "api/video_codecs/scalability_mode.h"
+#include "api/video_codecs/sdp_video_format.h"
+#include "api/video_codecs/vp9_profile.h"
+#include "media/base/media_constants.h"
+#include "modules/video_coding/codecs/vp9/libvpx_vp9_decoder.h"
+#include "modules/video_coding/codecs/vp9/libvpx_vp9_encoder.h"
+#include "modules/video_coding/svc/create_scalability_structure.h"
+#include "rtc_base/checks.h"
+#include "vpx/vp8cx.h"
+#include "vpx/vp8dx.h"
+#include "vpx/vpx_codec.h"
+
+namespace webrtc {
+
+std::vector<SdpVideoFormat> SupportedVP9Codecs(bool add_scalability_modes) {
+#ifdef RTC_ENABLE_VP9
+  // Profile 2 might not be available on some platforms until
+  // https://bugs.chromium.org/p/webm/issues/detail?id=1544 is solved.
+  static bool vpx_supports_high_bit_depth =
+      (vpx_codec_get_caps(vpx_codec_vp9_cx()) & VPX_CODEC_CAP_HIGHBITDEPTH) !=
+          0 &&
+      (vpx_codec_get_caps(vpx_codec_vp9_dx()) & VPX_CODEC_CAP_HIGHBITDEPTH) !=
+          0;
+
+  absl::InlinedVector<ScalabilityMode, kScalabilityModeCount> scalability_modes;
+  if (add_scalability_modes) {
+    for (const auto scalability_mode : kAllScalabilityModes) {
+      if (ScalabilityStructureConfig(scalability_mode).has_value()) {
+        scalability_modes.push_back(scalability_mode);
+      }
+    }
+  }
+  std::vector<SdpVideoFormat> supported_formats{SdpVideoFormat(
+      cricket::kVp9CodecName,
+      {{kVP9FmtpProfileId, VP9ProfileToString(VP9Profile::kProfile0)}},
+      scalability_modes)};
+  if (vpx_supports_high_bit_depth) {
+    supported_formats.push_back(SdpVideoFormat(
+        cricket::kVp9CodecName,
+        {{kVP9FmtpProfileId, VP9ProfileToString(VP9Profile::kProfile2)}},
+        scalability_modes));
+  }
+
+  return supported_formats;
+#else
+  return std::vector<SdpVideoFormat>();
+#endif
+}
+
+std::vector<SdpVideoFormat> SupportedVP9DecoderCodecs() {
+#ifdef RTC_ENABLE_VP9
+  std::vector<SdpVideoFormat> supported_formats = SupportedVP9Codecs();
+  // The WebRTC internal decoder supports VP9 profile 1 and 3. However, there's
+  // currently no way of sending VP9 profile 1 or 3 using the internal encoder.
+  // It would require extended support for I444, I422, and I440 buffers.
+  supported_formats.push_back(SdpVideoFormat(
+      cricket::kVp9CodecName,
+      {{kVP9FmtpProfileId, VP9ProfileToString(VP9Profile::kProfile1)}}));
+  supported_formats.push_back(SdpVideoFormat(
+      cricket::kVp9CodecName,
+      {{kVP9FmtpProfileId, VP9ProfileToString(VP9Profile::kProfile3)}}));
+  return supported_formats;
+#else
+  return std::vector<SdpVideoFormat>();
+#endif
+}
+
+std::unique_ptr<VP9Encoder> VP9Encoder::Create() {
+#ifdef RTC_ENABLE_VP9
+  return std::make_unique<LibvpxVp9Encoder>(
+      cricket::CreateVideoCodec(cricket::kVp9CodecName),
+      LibvpxInterface::Create(), FieldTrialBasedConfig());
+#else
+  RTC_DCHECK_NOTREACHED();
+  return nullptr;
+#endif
+}
+
+std::unique_ptr<VP9Encoder> VP9Encoder::Create(
+    const cricket::VideoCodec& codec) {
+#ifdef RTC_ENABLE_VP9
+  return std::make_unique<LibvpxVp9Encoder>(codec, LibvpxInterface::Create(),
+                                            FieldTrialBasedConfig());
+#else
+  RTC_DCHECK_NOTREACHED();
+  return nullptr;
+#endif
+}
+
+bool VP9Encoder::SupportsScalabilityMode(ScalabilityMode scalability_mode) {
+  return ScalabilityStructureConfig(scalability_mode).has_value();
+}
+
+std::unique_ptr<VP9Decoder> VP9Decoder::Create() {
+#ifdef RTC_ENABLE_VP9
+  return std::make_unique<LibvpxVp9Decoder>();
+#else
+  RTC_DCHECK_NOTREACHED();
+  return nullptr;
+#endif
+}
+
+}  // namespace webrtc