Feat/expose set codec preferences and get capabilities (#60)

* feat: capabilities.

* fix: fix crash.

* update.

* update.

BUILD.gn

@@ -70,6 +70,7 @@ rtc_shared_library("libwebrtc") {
     "include/rtc_mediaconstraints.h",
     "include/rtc_peerconnection.h",
     "include/rtc_peerconnection_factory.h",
+    "include/rtc_rtp_capabilities.h",
     "include/rtc_rtp_parameters.h",
     "include/rtc_rtp_receiver.h",
     "include/rtc_rtp_sender.h",
@@ -109,6 +110,8 @@ rtc_shared_library("libwebrtc") {
     "src/rtc_peerconnection_factory_impl.h",
     "src/rtc_peerconnection_impl.cc",
     "src/rtc_peerconnection_impl.h",
+    "src/rtc_rtp_capabilities_impl.cc",
+    "src/rtc_rtp_capabilities_impl.h",
     "src/rtc_rtp_parameters_impl.cc",
     "src/rtc_rtp_parameters_impl.h",
     "src/rtc_rtp_receiver_impl.cc",

include/rtc_peerconnection_factory.h

@@ -18,6 +18,7 @@ namespace libwebrtc {
 class RTCPeerConnection;
 class RTCAudioDevice;
 class RTCVideoDevice;
+class RTCRtpCapabilities;
 
 class RTCPeerConnectionFactory : public RefCountInterface {
  public:
@@ -60,6 +61,12 @@ class RTCPeerConnectionFactory : public RefCountInterface {
 
   virtual scoped_refptr<RTCMediaStream> CreateStream(
       const string stream_id) = 0;
+
+  virtual scoped_refptr<RTCRtpCapabilities> GetRtpSenderCapabilities(
+      RTCMediaType media_type) = 0;
+
+  virtual scoped_refptr<RTCRtpCapabilities> GetRtpReceiverCapabilities(
+      RTCMediaType media_type) = 0;
 };
 
 }  // namespace libwebrtc

include/rtc_rtp_capabilities.h

@@ -0,0 +1,62 @@
+#ifndef LIB_WBBRTC_RTC_RTP_CAPABILITIES_HXX
+#define LIB_WBBRTC_RTC_RTP_CAPABILITIES_HXX
+
+#include "base/refcount.h"
+#include "base/scoped_ref_ptr.h"
+
+#include "rtc_rtp_parameters.h"
+#include "rtc_types.h"
+
+
+namespace libwebrtc {
+
+class RTCRtpCodecCapability : public RefCountInterface {
+ public:
+  LIB_WEBRTC_API static scoped_refptr<RTCRtpCodecCapability> Create();
+
+  virtual void set_mime_type(const string& mime_type) = 0;
+  virtual void set_clock_rate(int clock_rate) = 0;
+  virtual void set_channels(int channels) = 0;
+  virtual void set_sdp_fmtp_line(const string& sdp_fmtp_line) = 0;
+
+  virtual string mime_type() const = 0;
+  virtual int clock_rate() const = 0;
+  virtual int channels() const = 0;
+  virtual string sdp_fmtp_line() const = 0;
+
+ protected:
+  virtual ~RTCRtpCodecCapability() {}
+};
+
+class RTCRtpHeaderExtensionCapability : public RefCountInterface {
+public:
+  virtual const string uri() = 0;
+  virtual void set_uri(const string uri) = 0;
+
+  virtual int preferred_id() = 0;
+  virtual void set_preferred_id(int value) = 0;
+
+  virtual bool preferred_encrypt() = 0;
+  virtual void set_preferred_encrypt(bool value) = 0;
+};
+
+class RTCRtpCapabilities : public RefCountInterface {
+public:
+  virtual const vector<scoped_refptr<RTCRtpCodecCapability>> codecs() = 0;
+  virtual void set_codecs(
+      const vector<scoped_refptr<RTCRtpCodecCapability>> codecs) = 0;
+
+  virtual const vector<scoped_refptr<RTCRtpHeaderExtensionCapability>>
+  header_extensions() = 0;
+
+  virtual void set_header_extensions(
+      const vector<scoped_refptr<RTCRtpHeaderExtensionCapability>>
+          header_extensions) = 0;
+
+  //virtual const vector<scoped_refptr<RTCFecMechanism>> fec() = 0;
+  //virtual void set_fec(const vector<scoped_refptr<RTCFecMechanism>> fec) = 0;
+};
+
+}  // namespace libwebrtc
+
+#endif  // LIB_WBBRTC_RTC_RTP_CAPABILITIES_HXX

include/rtc_rtp_parameters.h

@@ -59,73 +59,6 @@ class RTCRtcpFeedback : public RefCountInterface {
   virtual bool operator!=(scoped_refptr<RTCRtcpFeedback> o) = 0;
 };
 
-/* class RTCRtpCodecCapability : public RefCountInterface {
-  virtual const string mine_type() const = 0;
-
-  virtual const string name() = 0;
-
-  virtual void set_name(const string name) = 0;
-
-  virtual RTCMediaType kind() = 0;
-  virtual void set_kind(RTCMediaType value) = 0;
-
-  virtual int clock_rate() = 0;
-  virtual void set_clock_rate(int value) = 0;
-
-  virtual int preferred_payload_type() = 0;
-  virtual void set_preferred_payload_type(int value) = 0;
-
-  virtual int max_ptime() = 0;
-  virtual void set_max_ptime(int value) = 0;
-
-  virtual int ptime() = 0;
-  virtual void set_ptime(int value) = 0;
-
-  virtual int num_channels() = 0;
-  virtual void set_num_channels(int value) = 0;
-
-  virtual vector<scoped_refptr<RTCRtcpFeedback>> rtcp_feedback() = 0;
-  virtual void set_rtcp_feedback(vector<scoped_refptr<RTCRtcpFeedback>>
-rtcp_feecbacks) = 0;
-
-  virtual const map<string,string> parameters() = 0;
-  virtual void set_parameters(const map<string, string> parameters) = 0;
-
-  virtual const map<string, string> ptions() = 0;
-  virtual void set_options(map<string, string> options) = 0;
-
-  virtual int max_temporal_layer_extensions() = 0;
-  virtual void set_max_temporal_layer_extensions(int value) = 0;
-
-  virtual int max_spatial_layer_extensions() = 0;
-  virtual void set_max_spatial_layer_extensions(int value) = 0;
-
-  virtual bool svc_multi_stream_support() = 0;
-  virtual void set_svc_multi_stream_support(bool value) = 0;
-
-  virtual bool operator==(scoped_refptr<RTCRtpCodecCapability> o) const = 0;
-  virtual bool operator!=(scoped_refptr<RTCRtpCodecCapability> o) const = 0;
-};*/
-
-class RTCRtpHeaderExtensionCapability : public RefCountInterface {
-  virtual const string uri() = 0;
-  virtual void set_uri(const string uri) = 0;
-
-  virtual int preferred_id() = 0;
-  virtual void set_preferred_id(int value) = 0;
-
-  virtual bool preferred_encrypt() = 0;
-  virtual void set_preferred_encrypt(bool value) = 0;
-
-  virtual RTCRtpTransceiverDirection direction() = 0;
-  virtual void set_direction(RTCRtpTransceiverDirection value) = 0;
-
-  virtual bool operator==(
-      scoped_refptr<RTCRtpHeaderExtensionCapability> o) const = 0;
-  virtual bool operator!=(
-      scoped_refptr<RTCRtpHeaderExtensionCapability> o) const = 0;
-};
-
 class RTCRtpExtension : public RefCountInterface {
  public:
   enum RTCFilter {
@@ -201,27 +134,10 @@ class RTCRtpCodecParameters : public RefCountInterface {
 
   virtual bool operator==(scoped_refptr<RTCRtpCodecParameters> o) = 0;
   virtual bool operator!=(scoped_refptr<RTCRtpCodecParameters> o) = 0;
-};
-
-/*
-class RTCRtpCapabilities : public RefCountInterface {
-  virtual const vector<scoped_refptr<RTCRtpCodecCapability>> codecs() = 0;
-  virtual void set_codecs(
-      const vector<scoped_refptr<RTCRtpCodecCapability>> codecs) = 0;
 
-  virtual const vector<scoped_refptr<RTCRtpHeaderExtensionCapability>>
-  header_extensions() = 0;
-
-  virtual void set_header_extensions(
-      const vector<scoped_refptr<RTCRtpHeaderExtensionCapability>>
-          header_extensions) = 0;
-
-  virtual const vector<scoped_refptr<RTCFecMechanism>> fec() = 0;
-  virtual void set_fec(const vector<scoped_refptr<RTCFecMechanism>> fec) = 0;
-
-  virtual bool operator==(scoped_refptr<RTCRtpCapabilities> o) = 0;
-  virtual bool operator!=(scoped_refptr<RTCRtpCapabilities> o) = 0;
-};*/
+ protected:
+  virtual ~RTCRtpCodecParameters() {}
+};
 
 class RTCRtcpParameters : public RefCountInterface {
  public:

include/rtc_rtp_transceiver.h

@@ -2,6 +2,7 @@
 #define LIB_WEBRTC_RTC_RTP_TRANSCEIVER_HXX
 
 #include "base/refcount.h"
+#include "rtc_rtp_capabilities.h"
 #include "rtc_rtp_parameters.h"
 #include "rtc_rtp_receiver.h"
 #include "rtc_rtp_sender.h"
@@ -55,19 +56,8 @@ class RTCRtpTransceiver : public RefCountInterface {
 
   virtual void StopInternal() = 0;
 
-  // virtual string set_codec_preferences(vector<RTCRtpCodecCapability> codecs)
-  // = 0;
-
-  // virtual vector<RTCRtpCodecCapability> codec_preferences() const = 0;
-
-  // virtual vector<RTCRtpHeaderExtensionCapability> HeaderExtensionsToOffer()
-  // const = 0;
-
-  // virtual std::vector<RTCRtpHeaderExtensionCapability>
-  // HeaderExtensionsNegotiated() const = 0;
-
-  // virtual webrtc::RTCError SetOfferedRtpHeaderExtensions(vector<const
-  // RTCRtpHeaderExtensionCapability> header_extensions_to_offer);
+  virtual void SetCodecPreferences(
+      vector<scoped_refptr<RTCRtpCodecCapability>> codecs) = 0;
 };
 
 }  // namespace libwebrtc

src/rtc_peerconnection_factory_impl.cc

@@ -3,9 +3,11 @@
 #include "rtc_media_stream_impl.h"
 #include "rtc_mediaconstraints_impl.h"
 #include "rtc_peerconnection_impl.h"
+#include "rtc_rtp_capabilities_impl.h"
 #include "rtc_video_device_impl.h"
 #include "rtc_video_source_impl.h"
 
+
 #include "api/audio_codecs/builtin_audio_decoder_factory.h"
 #include "api/audio_codecs/builtin_audio_encoder_factory.h"
 #include "api/create_peerconnection_factory.h"
@@ -296,4 +298,61 @@ scoped_refptr<RTCAudioTrack> RTCPeerConnectionFactoryImpl::CreateAudioTrack(
   return track;
 }
 
+scoped_refptr<RTCRtpCapabilities>
+RTCPeerConnectionFactoryImpl::GetRtpSenderCapabilities(
+    RTCMediaType media_type) {
+  if (rtc::Thread::Current() != signaling_thread_) {
+    scoped_refptr<RTCRtpCapabilities> capabilities =
+        signaling_thread_->Invoke<scoped_refptr<RTCRtpCapabilities>>(
+            RTC_FROM_HERE, [this, media_type] {
+              return GetRtpSenderCapabilities(media_type);
+            });
+    return capabilities;
+  }
+
+  cricket::MediaType type = cricket::MediaType::MEDIA_TYPE_AUDIO;
+  switch (media_type) {
+    case RTCMediaType::AUDIO:
+      type = cricket::MediaType::MEDIA_TYPE_AUDIO;
+      break;
+    case RTCMediaType::VIDEO:
+      type = cricket::MediaType::MEDIA_TYPE_VIDEO;
+      break;
+    default:
+      break;
+  }
+  webrtc::RtpCapabilities rtp_capabilities =
+      rtc_peerconnection_factory_->GetRtpSenderCapabilities(type);
+  return scoped_refptr<RTCRtpCapabilities>(
+      new RefCountedObject<RTCRtpCapabilitiesImpl>(rtp_capabilities));
+}
+
+scoped_refptr<RTCRtpCapabilities>
+RTCPeerConnectionFactoryImpl::GetRtpReceiverCapabilities(
+    RTCMediaType media_type) {
+  if (rtc::Thread::Current() != signaling_thread_) {
+    scoped_refptr<RTCRtpCapabilities> capabilities =
+        signaling_thread_->Invoke<scoped_refptr<RTCRtpCapabilities>>(
+            RTC_FROM_HERE, [this, media_type] {
+              return GetRtpSenderCapabilities(media_type);
+            });
+    return capabilities;
+  }
+  cricket::MediaType type = cricket::MediaType::MEDIA_TYPE_AUDIO;
+  switch (media_type) {
+    case RTCMediaType::AUDIO:
+      type = cricket::MediaType::MEDIA_TYPE_AUDIO;
+      break;
+    case RTCMediaType::VIDEO:
+      type = cricket::MediaType::MEDIA_TYPE_VIDEO;
+      break;
+    default:
+      break;
+  }
+  webrtc::RtpCapabilities rtp_capabilities =
+      rtc_peerconnection_factory_->GetRtpReceiverCapabilities(type);
+  return scoped_refptr<RTCRtpCapabilities>(
+      new RefCountedObject<RTCRtpCapabilitiesImpl>(rtp_capabilities));
+}
+
 }  // namespace libwebrtc

src/rtc_peerconnection_factory_impl.h

@@ -72,6 +72,12 @@ class RTCPeerConnectionFactoryImpl : public RTCPeerConnectionFactory {
     return rtc_peerconnection_factory_;
   }
 
+  scoped_refptr<RTCRtpCapabilities> GetRtpSenderCapabilities(
+      RTCMediaType media_type) override;
+
+  scoped_refptr<RTCRtpCapabilities> GetRtpReceiverCapabilities(
+      RTCMediaType media_type) override;
+
  protected:
   void CreateAudioDeviceModule_w();