1 files changed, 26 insertions, 0 deletions
diff --git a/api/video_codecs/video_encoder_factory.h b/api/video_codecs/video_encoder_factory.h
index 22430eb19d..c2d66cfa86 100644
--- a/api/video_codecs/video_encoder_factory.h
+++ b/api/video_codecs/video_encoder_factory.h
@@ -12,6 +12,7 @@
 #define API_VIDEO_CODECS_VIDEO_ENCODER_FACTORY_H_
 
 #include <memory>
+#include <string>
 #include <vector>
 
 #include "absl/types/optional.h"
@@ -36,6 +37,11 @@ class VideoEncoderFactory {
     bool has_internal_source = false;
   };
 
+  struct CodecSupport {
+    bool is_supported = false;
+    bool is_power_efficient = false;
+  };
+
   // An injectable class that is continuously updated with encoding conditions
   // and selects the best encoder given those conditions.
   class EncoderSelectorInterface {
@@ -78,6 +84,26 @@ class VideoEncoderFactory {
     return CodecInfo();
   }
 
+  // Query whether the specifed format is supported or not and if it will be
+  // power efficient, which is currently interpreted as if there is support for
+  // hardware acceleration.
+  // See https://w3c.github.io/webrtc-svc/#scalabilitymodes* for a specification
+  // of valid values for |scalability_mode|.
+  // NOTE: QueryCodecSupport is currently an experimental feature that is
+  // subject to change without notice.
+  virtual CodecSupport QueryCodecSupport(
+      const SdpVideoFormat& format,
+      absl::optional<std::string> scalability_mode) const {
+    // Default implementation, query for supported formats and check if the
+    // specified format is supported. Returns false if scalability_mode is
+    // specified.
+    CodecSupport codec_support;
+    if (!scalability_mode) {
+      codec_support.is_supported = format.IsCodecInList(GetSupportedFormats());
+    }
+    return codec_support;
+  }
+
   // Creates a VideoEncoder for the specified format.
   virtual std::unique_ptr<VideoEncoder> CreateVideoEncoder(
       const SdpVideoFormat& format) = 0;