Cast: Reshuffle files under media/cast

media/cast/transport/cast_transport_defines.h

-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef MEDIA_CAST_TRANSPORT_CAST_TRANSPORT_DEFINES_H_
-#define MEDIA_CAST_TRANSPORT_CAST_TRANSPORT_DEFINES_H_
-
-#include <stdint.h>
-
-#include <map>
-#include <set>
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/time/time.h"
-
-namespace media {
-namespace cast {
-namespace transport {
-
-// TODO(mikhal): Implement and add more types.
-enum CastTransportStatus {
-  TRANSPORT_AUDIO_UNINITIALIZED = 0,
-  TRANSPORT_VIDEO_UNINITIALIZED,
-  TRANSPORT_AUDIO_INITIALIZED,
-  TRANSPORT_VIDEO_INITIALIZED,
-  TRANSPORT_INVALID_CRYPTO_CONFIG,
-  TRANSPORT_SOCKET_ERROR,
-  CAST_TRANSPORT_STATUS_LAST = TRANSPORT_SOCKET_ERROR
-};
-
-const size_t kMaxIpPacketSize = 1500;
-// Each uint16 represents one packet id within a cast frame.
-typedef std::set<uint16> PacketIdSet;
-// Each uint8 represents one cast frame.
-typedef std::map<uint8, PacketIdSet> MissingFramesAndPacketsMap;
-
-// Crypto.
-const size_t kAesBlockSize = 16;
-const size_t kAesKeySize = 16;
-
-inline std::string GetAesNonce(uint32 frame_id, const std::string& iv_mask) {
-  std::string aes_nonce(kAesBlockSize, 0);
-
-  // Serializing frame_id in big-endian order (aes_nonce[8] is the most
-  // significant byte of frame_id).
-  aes_nonce[11] = frame_id & 0xff;
-  aes_nonce[10] = (frame_id >> 8) & 0xff;
-  aes_nonce[9] = (frame_id >> 16) & 0xff;
-  aes_nonce[8] = (frame_id >> 24) & 0xff;
-
-  for (size_t i = 0; i < kAesBlockSize; ++i) {
-    aes_nonce[i] ^= iv_mask[i];
-  }
-  return aes_nonce;
-}
-
-// Rtcp defines.
-
-enum RtcpPacketFields {
-  kPacketTypeLow = 194,  // SMPTE time-code mapping.
-  kPacketTypeInterArrivalJitterReport = 195,
-  kPacketTypeSenderReport = 200,
-  kPacketTypeReceiverReport = 201,
-  kPacketTypeSdes = 202,
-  kPacketTypeBye = 203,
-  kPacketTypeApplicationDefined = 204,
-  kPacketTypeGenericRtpFeedback = 205,
-  kPacketTypePayloadSpecific = 206,
-  kPacketTypeXr = 207,
-  kPacketTypeHigh = 210,  // Port Mapping.
-};
-
-enum RtcpPacketField {
-    kRtcpSr     = 0x0002,
-    kRtcpRr     = 0x0004,
-    kRtcpBye    = 0x0008,
-    kRtcpPli    = 0x0010,
-    kRtcpNack   = 0x0020,
-    kRtcpFir    = 0x0040,
-    kRtcpSrReq  = 0x0200,
-    kRtcpDlrr   = 0x0400,
-    kRtcpRrtr   = 0x0800,
-    kRtcpRpsi   = 0x8000,
-    kRtcpRemb   = 0x10000,
-    kRtcpCast   = 0x20000,
-    kRtcpSenderLog = 0x40000,
-    kRtcpReceiverLog = 0x80000,
-  };
-
-// Each uint16 represents one packet id within a cast frame.
-typedef std::set<uint16> PacketIdSet;
-// Each uint8 represents one cast frame.
-typedef std::map<uint8, PacketIdSet> MissingFramesAndPacketsMap;
-
-// TODO(miu): UGLY IN-LINE DEFINITION IN HEADER FILE!  Move to appropriate
-// location, separated into .h and .cc files.
-class FrameIdWrapHelper {
- public:
-  FrameIdWrapHelper()
-      : first_(true), frame_id_wrap_count_(0), range_(kLowRange) {}
-
-  uint32 MapTo32bitsFrameId(const uint8 over_the_wire_frame_id) {
-    if (first_) {
-      first_ = false;
-      if (over_the_wire_frame_id == 0xff) {
-        // Special case for startup.
-        return kStartFrameId;
-      }
-    }
-
-    uint32 wrap_count = frame_id_wrap_count_;
-    switch (range_) {
-      case kLowRange:
-        if (over_the_wire_frame_id > kLowRangeThreshold &&
-            over_the_wire_frame_id < kHighRangeThreshold) {
-          range_ = kMiddleRange;
-        }
-        if (over_the_wire_frame_id >= kHighRangeThreshold) {
-          // Wrap count was incremented in High->Low transition, but this frame
-          // is 'old', actually from before the wrap count got incremented.
-          --wrap_count;
-        }
-        break;
-      case kMiddleRange:
-        if (over_the_wire_frame_id >= kHighRangeThreshold) {
-          range_ = kHighRange;
-        }
-        break;
-      case kHighRange:
-        if (over_the_wire_frame_id <= kLowRangeThreshold) {
-          // Wrap-around detected.
-          range_ = kLowRange;
-          ++frame_id_wrap_count_;
-          // Frame triggering wrap-around so wrap count should be incremented as
-          // as well to match |frame_id_wrap_count_|.
-          ++wrap_count;
-        }
-        break;
-    }
-    return (wrap_count << 8) + over_the_wire_frame_id;
-  }
-
- private:
-  enum Range { kLowRange, kMiddleRange, kHighRange, };
-
-  static const uint8 kLowRangeThreshold = 63;
-  static const uint8 kHighRangeThreshold = 192;
-  static const uint32 kStartFrameId = UINT32_C(0xffffffff);
-
-  bool first_;
-  uint32 frame_id_wrap_count_;
-  Range range_;
-
-  DISALLOW_COPY_AND_ASSIGN(FrameIdWrapHelper);
-};
-
-inline uint32 GetVideoRtpTimestamp(const base::TimeTicks& time_ticks) {
-  base::TimeTicks zero_time;
-  base::TimeDelta recorded_delta = time_ticks - zero_time;
-  // Timestamp is in 90 KHz for video.
-  return static_cast<uint32>(recorded_delta.InMilliseconds() * 90);
-}
-
-}  // namespace transport
-}  // namespace cast
-}  // namespace media
-
-#endif  // MEDIA_CAST_TRANSPORT_CAST_TRANSPORT_DEFINES_H_