Move src/ -> webrtc/

TBR=niklas.enbom@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/915006

git-svn-id: http://webrtc.googlecode.com/svn/trunk@2963 4adac7df-926f-26a2-2b94-8c16560cd09d

1 files changed, 106 insertions, 0 deletions

diff --git a/webrtc/modules/audio_conference_mixer/interface/audio_conference_mixer_defines.h b/webrtc/modules/audio_conference_mixer/interface/audio_conference_mixer_defines.h
new file mode 100644
index 0000000000..718470deb8
--- /dev/null
+++ b/webrtc/modules/audio_conference_mixer/interface/audio_conference_mixer_defines.h
@@ -0,0 +1,106 @@
+/*
+ *  Copyright (c) 2011 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_CONFERENCE_MIXER_INTERFACE_AUDIO_CONFERENCE_MIXER_DEFINES_H_
+#define WEBRTC_MODULES_AUDIO_CONFERENCE_MIXER_INTERFACE_AUDIO_CONFERENCE_MIXER_DEFINES_H_
+
+#include "map_wrapper.h"
+#include "module_common_types.h"
+#include "typedefs.h"
+
+namespace webrtc {
+class MixHistory;
+
+// A callback class that all mixer participants must inherit from/implement.
+class MixerParticipant
+{
+public:
+    // The implementation of this function should update audioFrame with new
+    // audio every time it's called.
+    //
+    // If it returns -1, the frame will not be added to the mix.
+    virtual WebRtc_Word32 GetAudioFrame(const WebRtc_Word32 id,
+                                        AudioFrame& audioFrame) = 0;
+
+    // mixed will be set to true if the participant was mixed this mix iteration
+    WebRtc_Word32 IsMixed(bool& mixed) const;
+
+    // This function specifies the sampling frequency needed for the AudioFrame
+    // for future GetAudioFrame(..) calls.
+    virtual WebRtc_Word32 NeededFrequency(const WebRtc_Word32 id) = 0;
+
+    MixHistory* _mixHistory;
+protected:
+    MixerParticipant();
+    virtual ~MixerParticipant();
+};
+
+// Container struct for participant statistics.
+struct ParticipantStatistics
+{
+    WebRtc_Word32 participant;
+    WebRtc_Word32 level;
+};
+
+class AudioMixerStatusReceiver
+{
+public:
+    // Callback function that provides an array of ParticipantStatistics for the
+    // participants that were mixed last mix iteration.
+    virtual void MixedParticipants(
+        const WebRtc_Word32 id,
+        const ParticipantStatistics* participantStatistics,
+        const WebRtc_UWord32 size) = 0;
+    // Callback function that provides an array of the ParticipantStatistics for
+    // the participants that had a positiv VAD last mix iteration.
+    virtual void VADPositiveParticipants(
+        const WebRtc_Word32 id,
+        const ParticipantStatistics* participantStatistics,
+        const WebRtc_UWord32 size) = 0;
+    // Callback function that provides the audio level of the mixed audio frame
+    // from the last mix iteration.
+    virtual void MixedAudioLevel(
+        const WebRtc_Word32  id,
+        const WebRtc_UWord32 level) = 0;
+protected:
+    AudioMixerStatusReceiver() {}
+    virtual ~AudioMixerStatusReceiver() {}
+};
+
+class AudioMixerOutputReceiver
+{
+public:
+    // This callback function provides the mixed audio for this mix iteration.
+    // Note that uniqueAudioFrames is an array of AudioFrame pointers with the
+    // size according to the size parameter.
+    virtual void NewMixedAudio(const WebRtc_Word32 id,
+                               const AudioFrame& generalAudioFrame,
+                               const AudioFrame** uniqueAudioFrames,
+                               const WebRtc_UWord32 size) = 0;
+protected:
+    AudioMixerOutputReceiver() {}
+    virtual ~AudioMixerOutputReceiver() {}
+};
+
+class AudioRelayReceiver
+{
+public:
+    // This callback function provides the mix decision for this mix iteration.
+    // mixerList is a list of elements of the type
+    // [int,MixerParticipant*]
+    virtual void NewAudioToRelay(const WebRtc_Word32 id,
+                                 const MapWrapper& mixerList) = 0;
+protected:
+    AudioRelayReceiver() {}
+    virtual ~AudioRelayReceiver() {}
+};
+} // namespace webrtc
+
+#endif // WEBRTC_MODULES_AUDIO_CONFERENCE_MIXER_INTERFACE_AUDIO_CONFERENCE_MIXER_DEFINES_H_