1 files changed, 102 insertions, 0 deletions
diff --git a/third_party/libwebrtc/sdk/objc/components/video_codec/RTCDefaultVideoEncoderFactory.m b/third_party/libwebrtc/sdk/objc/components/video_codec/RTCDefaultVideoEncoderFactory.m
new file mode 100644
index 0000000000..8de55bde4a
--- /dev/null
+++ b/third_party/libwebrtc/sdk/objc/components/video_codec/RTCDefaultVideoEncoderFactory.m
@@ -0,0 +1,102 @@
+/*
+ *  Copyright 2017 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.
+ */
+
+#import "RTCDefaultVideoEncoderFactory.h"
+
+#import "RTCH264ProfileLevelId.h"
+#import "RTCVideoEncoderH264.h"
+#import "api/video_codec/RTCVideoCodecConstants.h"
+#import "api/video_codec/RTCVideoEncoderVP8.h"
+#import "api/video_codec/RTCVideoEncoderVP9.h"
+#import "base/RTCVideoCodecInfo.h"
+
+#if defined(RTC_USE_LIBAOM_AV1_ENCODER)
+#import "api/video_codec/RTCVideoEncoderAV1.h"  // nogncheck
+#endif
+
+@implementation RTC_OBJC_TYPE (RTCDefaultVideoEncoderFactory)
+
+@synthesize preferredCodec;
+
++ (NSArray<RTC_OBJC_TYPE(RTCVideoCodecInfo) *> *)supportedCodecs {
+  NSDictionary<NSString *, NSString *> *constrainedHighParams = @{
+    @"profile-level-id" : kRTCMaxSupportedH264ProfileLevelConstrainedHigh,
+    @"level-asymmetry-allowed" : @"1",
+    @"packetization-mode" : @"1",
+  };
+  RTC_OBJC_TYPE(RTCVideoCodecInfo) *constrainedHighInfo =
+      [[RTC_OBJC_TYPE(RTCVideoCodecInfo) alloc] initWithName:kRTCVideoCodecH264Name
+                                                  parameters:constrainedHighParams];
+
+  NSDictionary<NSString *, NSString *> *constrainedBaselineParams = @{
+    @"profile-level-id" : kRTCMaxSupportedH264ProfileLevelConstrainedBaseline,
+    @"level-asymmetry-allowed" : @"1",
+    @"packetization-mode" : @"1",
+  };
+  RTC_OBJC_TYPE(RTCVideoCodecInfo) *constrainedBaselineInfo =
+      [[RTC_OBJC_TYPE(RTCVideoCodecInfo) alloc] initWithName:kRTCVideoCodecH264Name
+                                                  parameters:constrainedBaselineParams];
+
+  RTC_OBJC_TYPE(RTCVideoCodecInfo) *vp8Info =
+      [[RTC_OBJC_TYPE(RTCVideoCodecInfo) alloc] initWithName:kRTCVideoCodecVp8Name];
+
+  NSMutableArray<RTC_OBJC_TYPE(RTCVideoCodecInfo) *> *result = [@[
+    constrainedHighInfo,
+    constrainedBaselineInfo,
+    vp8Info,
+  ] mutableCopy];
+
+  if ([RTC_OBJC_TYPE(RTCVideoEncoderVP9) isSupported]) {
+    [result
+        addObject:[[RTC_OBJC_TYPE(RTCVideoCodecInfo) alloc] initWithName:kRTCVideoCodecVp9Name]];
+  }
+
+#if defined(RTC_USE_LIBAOM_AV1_ENCODER)
+  [result addObject:[[RTC_OBJC_TYPE(RTCVideoCodecInfo) alloc] initWithName:kRTCVideoCodecAv1Name]];
+#endif
+
+  return result;
+}
+
+- (id<RTC_OBJC_TYPE(RTCVideoEncoder)>)createEncoder:(RTC_OBJC_TYPE(RTCVideoCodecInfo) *)info {
+  if ([info.name isEqualToString:kRTCVideoCodecH264Name]) {
+    return [[RTC_OBJC_TYPE(RTCVideoEncoderH264) alloc] initWithCodecInfo:info];
+  } else if ([info.name isEqualToString:kRTCVideoCodecVp8Name]) {
+    return [RTC_OBJC_TYPE(RTCVideoEncoderVP8) vp8Encoder];
+  } else if ([info.name isEqualToString:kRTCVideoCodecVp9Name] &&
+             [RTC_OBJC_TYPE(RTCVideoEncoderVP9) isSupported]) {
+    return [RTC_OBJC_TYPE(RTCVideoEncoderVP9) vp9Encoder];
+  }
+
+#if defined(RTC_USE_LIBAOM_AV1_ENCODER)
+  if ([info.name isEqualToString:kRTCVideoCodecAv1Name]) {
+    return [RTC_OBJC_TYPE(RTCVideoEncoderAV1) av1Encoder];
+  }
+#endif
+
+  return nil;
+}
+
+- (NSArray<RTC_OBJC_TYPE(RTCVideoCodecInfo) *> *)supportedCodecs {
+  NSMutableArray<RTC_OBJC_TYPE(RTCVideoCodecInfo) *> *codecs =
+      [[[self class] supportedCodecs] mutableCopy];
+
+  NSMutableArray<RTC_OBJC_TYPE(RTCVideoCodecInfo) *> *orderedCodecs = [NSMutableArray array];
+  NSUInteger index = [codecs indexOfObject:self.preferredCodec];
+  if (index != NSNotFound) {
+    [orderedCodecs addObject:[codecs objectAtIndex:index]];
+    [codecs removeObjectAtIndex:index];
+  }
+  [orderedCodecs addObjectsFromArray:codecs];
+
+  return [orderedCodecs copy];
+}
+
+@end