Obj-C SDK Cleanup

This CL separates the files under sdk/objc into logical directories, replacing
the previous file layout under Framework/.

A long term goal is to have some system set up to generate the files under
sdk/objc/api (the PeerConnection API wrappers) from the C++ code. In the shorter
term the goal is to abstract out shared concepts from these classes in order to
make them as uniform as possible.

The separation into base/, components/, and helpers/ are to differentiate between
the base layer's common protocols, various utilities and the actual platform
specific components.

The old directory layout that resembled a framework's internal layout is not
necessary, since it is generated by the framework target when building it.

Bug: webrtc:9627
Change-Id: Ib084fd83f050ae980649ca99e841f4fb0580bd8f
Reviewed-on: https://webrtc-review.googlesource.com/94142
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
Commit-Queue: Anders Carlsson <andersc@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24493}

sdk/objc/Framework/Headers/WebRTC/RTCVideoCodecH264.h

@@ -8,84 +8,9 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#import <Foundation/Foundation.h>
-
-#import <WebRTC/RTCMacros.h>
-#import <WebRTC/RTCVideoCodecFactory.h>
-
-/** Class for H264 specific config. */
-typedef NS_ENUM(NSUInteger, RTCH264PacketizationMode) {
-  RTCH264PacketizationModeNonInterleaved = 0,  // Mode 1 - STAP-A, FU-A is allowed
-  RTCH264PacketizationModeSingleNalUnit        // Mode 0 - only single NALU allowed
-};
-
-RTC_EXPORT
-@interface RTCCodecSpecificInfoH264 : NSObject <RTCCodecSpecificInfo>
-
-@property(nonatomic, assign) RTCH264PacketizationMode packetizationMode;
-
-@end
-
-/** H264 Profiles and levels. */
-typedef NS_ENUM(NSUInteger, RTCH264Profile) {
-  RTCH264ProfileConstrainedBaseline,
-  RTCH264ProfileBaseline,
-  RTCH264ProfileMain,
-  RTCH264ProfileConstrainedHigh,
-  RTCH264ProfileHigh,
-};
-
-typedef NS_ENUM(NSUInteger, RTCH264Level) {
-  RTCH264Level1_b = 0,
-  RTCH264Level1 = 10,
-  RTCH264Level1_1 = 11,
-  RTCH264Level1_2 = 12,
-  RTCH264Level1_3 = 13,
-  RTCH264Level2 = 20,
-  RTCH264Level2_1 = 21,
-  RTCH264Level2_2 = 22,
-  RTCH264Level3 = 30,
-  RTCH264Level3_1 = 31,
-  RTCH264Level3_2 = 32,
-  RTCH264Level4 = 40,
-  RTCH264Level4_1 = 41,
-  RTCH264Level4_2 = 42,
-  RTCH264Level5 = 50,
-  RTCH264Level5_1 = 51,
-  RTCH264Level5_2 = 52
-};
-
-RTC_EXPORT
-@interface RTCH264ProfileLevelId : NSObject
-
-@property(nonatomic, readonly) RTCH264Profile profile;
-@property(nonatomic, readonly) RTCH264Level level;
-@property(nonatomic, readonly) NSString *hexString;
-
-- (instancetype)initWithHexString:(NSString *)hexString;
-- (instancetype)initWithProfile:(RTCH264Profile)profile level:(RTCH264Level)level;
-
-@end
-
-/** Encoder. */
-RTC_EXPORT
-@interface RTCVideoEncoderH264 : NSObject <RTCVideoEncoder>
-
-- (instancetype)initWithCodecInfo:(RTCVideoCodecInfo *)codecInfo;
-
-@end
-
-/** Decoder. */
-RTC_EXPORT
-@interface RTCVideoDecoderH264 : NSObject <RTCVideoDecoder>
-@end
-
-/** Encoder factory. */
-RTC_EXPORT
-@interface RTCVideoEncoderFactoryH264 : NSObject <RTCVideoEncoderFactory>
-@end
-
-/** Decoder factory. */
-RTC_EXPORT
-@interface RTCVideoDecoderFactoryH264 : NSObject <RTCVideoDecoderFactory>
-@end
+#import "components/video_codec/RTCCodecSpecificInfoH264.h"
+#import "components/video_codec/RTCH264ProfileLevelId.h"
+#import "components/video_codec/RTCVideoDecoderFactoryH264.h"
+#import "components/video_codec/RTCVideoDecoderH264.h"
+#import "components/video_codec/RTCVideoEncoderFactoryH264.h"
+#import "components/video_codec/RTCVideoEncoderH264.h"