audio_coding: remove "main" directory

webrtc/modules/audio_coding/main/acm2/acm_receiver.h

Index: webrtc/modules/audio_coding/main/acm2/acm_receiver.h
diff --git a/webrtc/modules/audio_coding/main/acm2/acm_receiver.h b/webrtc/modules/audio_coding/main/acm2/acm_receiver.h
deleted file mode 100644
index bcedacd14f42a94a7a7c2705c49be0334bb20c55..0000000000000000000000000000000000000000
--- a/webrtc/modules/audio_coding/main/acm2/acm_receiver.h
+++ /dev/null
@@ -1,305 +0,0 @@
-/*
- *  Copyright (c) 2013 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.
- */
-
-#ifndef WEBRTC_MODULES_AUDIO_CODING_MAIN_ACM2_ACM_RECEIVER_H_
-#define WEBRTC_MODULES_AUDIO_CODING_MAIN_ACM2_ACM_RECEIVER_H_
-
-#include <map>
-#include <vector>
-
-#include "webrtc/base/array_view.h"
-#include "webrtc/base/optional.h"
-#include "webrtc/base/scoped_ptr.h"
-#include "webrtc/base/thread_annotations.h"
-#include "webrtc/common_audio/vad/include/webrtc_vad.h"
-#include "webrtc/engine_configurations.h"
-#include "webrtc/modules/audio_coding/main/include/audio_coding_module.h"
-#include "webrtc/modules/audio_coding/main/acm2/acm_resampler.h"
-#include "webrtc/modules/audio_coding/main/acm2/call_statistics.h"
-#include "webrtc/modules/audio_coding/main/acm2/initial_delay_manager.h"
-#include "webrtc/modules/audio_coding/neteq/include/neteq.h"
-#include "webrtc/modules/include/module_common_types.h"
-#include "webrtc/typedefs.h"
-
-namespace webrtc {
-
-struct CodecInst;
-class CriticalSectionWrapper;
-class NetEq;
-
-namespace acm2 {
-
-class AcmReceiver {
- public:
-  struct Decoder {
-    int acm_codec_id;
-    uint8_t payload_type;
-    // This field is meaningful for codecs where both mono and
-    // stereo versions are registered under the same ID.
-    int channels;
-    int sample_rate_hz;
-  };
-
-  // Constructor of the class
-  explicit AcmReceiver(const AudioCodingModule::Config& config);
-
-  // Destructor of the class.
-  ~AcmReceiver();
-
-  //
-  // Inserts a payload with its associated RTP-header into NetEq.
-  //
-  // Input:
-  //   - rtp_header           : RTP header for the incoming payload containing
-  //                            information about payload type, sequence number,
-  //                            timestamp, SSRC and marker bit.
-  //   - incoming_payload     : Incoming audio payload.
-  //   - length_payload       : Length of incoming audio payload in bytes.
-  //
-  // Return value             : 0 if OK.
-  //                           <0 if NetEq returned an error.
-  //
-  int InsertPacket(const WebRtcRTPHeader& rtp_header,
-                   rtc::ArrayView<const uint8_t> incoming_payload);
-
-  //
-  // Asks NetEq for 10 milliseconds of decoded audio.
-  //
-  // Input:
-  //   -desired_freq_hz       : specifies the sampling rate [Hz] of the output
-  //                            audio. If set -1 indicates to resampling is
-  //                            is required and the audio returned at the
-  //                            sampling rate of the decoder.
-  //
-  // Output:
-  //   -audio_frame           : an audio frame were output data and
-  //                            associated parameters are written to.
-  //
-  // Return value             : 0 if OK.
-  //                           -1 if NetEq returned an error.
-  //
-  int GetAudio(int desired_freq_hz, AudioFrame* audio_frame);
-
-  //
-  // Adds a new codec to the NetEq codec database.
-  //
-  // Input:
-  //   - acm_codec_id        : ACM codec ID; -1 means external decoder.
-  //   - payload_type        : payload type.
-  //   - sample_rate_hz      : sample rate.
-  //   - audio_decoder       : pointer to a decoder object. If it's null, then
-  //                           NetEq will internally create a decoder object
-  //                           based on the value of |acm_codec_id| (which
-  //                           mustn't be -1). Otherwise, NetEq will use the
-  //                           given decoder for the given payload type. NetEq
-  //                           won't take ownership of the decoder; it's up to
-  //                           the caller to delete it when it's no longer
-  //                           needed.
-  //
-  //                           Providing an existing decoder object here is
-  //                           necessary for external decoders, but may also be
-  //                           used for built-in decoders if NetEq doesn't have
-  //                           all the info it needs to construct them properly
-  //                           (e.g. iSAC, where the decoder needs to be paired
-  //                           with an encoder).
-  //
-  // Return value             : 0 if OK.
-  //                           <0 if NetEq returned an error.
-  //
-  int AddCodec(int acm_codec_id,
-               uint8_t payload_type,
-               int channels,
-               int sample_rate_hz,
-               AudioDecoder* audio_decoder);
-
-  //
-  // Sets a minimum delay for packet buffer. The given delay is maintained,
-  // unless channel condition dictates a higher delay.
-  //
-  // Input:
-  //   - delay_ms             : minimum delay in milliseconds.
-  //
-  // Return value             : 0 if OK.
-  //                           <0 if NetEq returned an error.
-  //
-  int SetMinimumDelay(int delay_ms);
-
-  //
-  // Sets a maximum delay [ms] for the packet buffer. The target delay does not
-  // exceed the given value, even if channel condition requires so.
-  //
-  // Input:
-  //   - delay_ms             : maximum delay in milliseconds.
-  //
-  // Return value             : 0 if OK.
-  //                           <0 if NetEq returned an error.
-  //
-  int SetMaximumDelay(int delay_ms);
-
-  //
-  // Get least required delay computed based on channel conditions. Note that
-  // this is before applying any user-defined limits (specified by calling
-  // (SetMinimumDelay() and/or SetMaximumDelay()).
-  //
-  int LeastRequiredDelayMs() const;
-
-  //
-  // Resets the initial delay to zero.
-  //
-  void ResetInitialDelay();
-
-  // Returns the sample rate of the decoder associated with the last incoming
-  // packet. If no packet of a registered non-CNG codec has been received, the
-  // return value is empty. Also, if the decoder was unregistered since the last
-  // packet was inserted, the return value is empty.
-  rtc::Optional<int> last_packet_sample_rate_hz() const;
-
-  // Returns last_output_sample_rate_hz from the NetEq instance.
-  int last_output_sample_rate_hz() const;
-
-  //
-  // Get the current network statistics from NetEq.
-  //
-  // Output:
-  //   - statistics           : The current network statistics.
-  //
-  void GetNetworkStatistics(NetworkStatistics* statistics);
-
-  //
-  // Enable post-decoding VAD.
-  //
-  void EnableVad();
-
-  //
-  // Disable post-decoding VAD.
-  //
-  void DisableVad();
-
-  //
-  // Returns whether post-decoding VAD is enabled (true) or disabled (false).
-  //
-  bool vad_enabled() const { return vad_enabled_; }
-
-  //
-  // Flushes the NetEq packet and speech buffers.
-  //
-  void FlushBuffers();
-
-  //
-  // Removes a payload-type from the NetEq codec database.
-  //
-  // Input:
-  //   - payload_type         : the payload-type to be removed.
-  //
-  // Return value             : 0 if OK.
-  //                           -1 if an error occurred.
-  //
-  int RemoveCodec(uint8_t payload_type);
-
-  //
-  // Remove all registered codecs.
-  //
-  int RemoveAllCodecs();
-
-  //
-  // Set ID.
-  //
-  void set_id(int id);  // TODO(turajs): can be inline.
-
-  //
-  // Gets the RTP timestamp of the last sample delivered by GetAudio().
-  // Returns true if the RTP timestamp is valid, otherwise false.
-  //
-  bool GetPlayoutTimestamp(uint32_t* timestamp);
-
-  //
-  // Get the audio codec associated with the last non-CNG/non-DTMF received
-  // payload. If no non-CNG/non-DTMF packet is received -1 is returned,
-  // otherwise return 0.
-  //
-  int LastAudioCodec(CodecInst* codec) const;
-
-  //
-  // Get a decoder given its registered payload-type.
-  //
-  // Input:
-  //    -payload_type         : the payload-type of the codec to be retrieved.
-  //
-  // Output:
-  //    -codec                : codec associated with the given payload-type.
-  //
-  // Return value             : 0 if succeeded.
-  //                           -1 if failed, e.g. given payload-type is not
-  //                              registered.
-  //
-  int DecoderByPayloadType(uint8_t payload_type,
-                           CodecInst* codec) const;
-
-  //
-  // Enable NACK and set the maximum size of the NACK list. If NACK is already
-  // enabled then the maximum NACK list size is modified accordingly.
-  //
-  // Input:
-  //    -max_nack_list_size  : maximum NACK list size
-  //                           should be positive (none zero) and less than or
-  //                           equal to |Nack::kNackListSizeLimit|
-  // Return value
-  //                         : 0 if succeeded.
-  //                          -1 if failed
-  //
-  int EnableNack(size_t max_nack_list_size);
-
-  // Disable NACK.
-  void DisableNack();
-
-  //
-  // Get a list of packets to be retransmitted.
-  //
-  // Input:
-  //    -round_trip_time_ms : estimate of the round-trip-time (in milliseconds).
-  // Return value           : list of packets to be retransmitted.
-  //
-  std::vector<uint16_t> GetNackList(int64_t round_trip_time_ms) const;
-
-  //
-  // Get statistics of calls to GetAudio().
-  void GetDecodingCallStatistics(AudioDecodingCallStats* stats) const;
-
- private:
-  const Decoder* RtpHeaderToDecoder(const RTPHeader& rtp_header,
-                                    uint8_t payload_type) const
-      EXCLUSIVE_LOCKS_REQUIRED(crit_sect_);
-
-  uint32_t NowInTimestamp(int decoder_sampling_rate) const;
-
-  rtc::scoped_ptr<CriticalSectionWrapper> crit_sect_;
-  int id_;  // TODO(henrik.lundin) Make const.
-  const Decoder* last_audio_decoder_ GUARDED_BY(crit_sect_);
-  AudioFrame::VADActivity previous_audio_activity_ GUARDED_BY(crit_sect_);
-  ACMResampler resampler_ GUARDED_BY(crit_sect_);
-  // Used in GetAudio, declared as member to avoid allocating every 10ms.
-  // TODO(henrik.lundin) Stack-allocate in GetAudio instead?
-  rtc::scoped_ptr<int16_t[]> audio_buffer_ GUARDED_BY(crit_sect_);
-  rtc::scoped_ptr<int16_t[]> last_audio_buffer_ GUARDED_BY(crit_sect_);
-  CallStatistics call_stats_ GUARDED_BY(crit_sect_);
-  NetEq* neteq_;
-  // Decoders map is keyed by payload type
-  std::map<uint8_t, Decoder> decoders_ GUARDED_BY(crit_sect_);
-  bool vad_enabled_;
-  Clock* clock_;  // TODO(henrik.lundin) Make const if possible.
-  bool resampled_last_output_frame_ GUARDED_BY(crit_sect_);
-  rtc::Optional<int> last_packet_sample_rate_hz_ GUARDED_BY(crit_sect_);
-};
-
-}  // namespace acm2
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_MODULES_AUDIO_CODING_MAIN_ACM2_ACM_RECEIVER_H_