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// Copyright (c) 2012 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 CONTENT_COMMON_MEDIA_MEDIA_STREAM_OPTIONS_H_
#define CONTENT_COMMON_MEDIA_MEDIA_STREAM_OPTIONS_H_
#include <string>
#include <vector>
#include "content/common/content_export.h"
#include "content/public/common/media_stream_request.h"
namespace content {
// MediaStreamConstraint keys for constraints that are passed to getUserMedia.
CONTENT_EXPORT extern const char kMediaStreamSource[];
CONTENT_EXPORT extern const char kMediaStreamSourceId[];
CONTENT_EXPORT extern const char kMediaStreamSourceInfoId[];
CONTENT_EXPORT extern const char kMediaStreamSourceTab[];
CONTENT_EXPORT extern const char kMediaStreamSourceScreen[];
CONTENT_EXPORT extern const char kMediaStreamSourceDesktop[];
CONTENT_EXPORT extern const char kMediaStreamSourceSystem[];
// Experimental constraint to do device matching. When this optional constraint
// is set, WebRTC audio renderer will render audio from media streams to an
// output device that belongs to the same hardware as the requested source
// device belongs to.
CONTENT_EXPORT extern const char kMediaStreamRenderToAssociatedSink[];
// StreamOptions is a Chromium representation of WebKit's
// WebUserMediaRequest Options. It describes the components
// in a request for a new media stream.
struct CONTENT_EXPORT StreamOptions {
StreamOptions();
StreamOptions(MediaStreamType audio_type, MediaStreamType video_type);
// If not NO_SERVICE, the stream shall contain an audio input stream.
MediaStreamType audio_type;
std::string audio_device_id;
// If not NO_SERVICE, the stream shall contain a video input stream.
MediaStreamType video_type;
std::string video_device_id;
};
// StreamDeviceInfo describes information about a device.
struct CONTENT_EXPORT StreamDeviceInfo {
static const int kNoId;
StreamDeviceInfo();
StreamDeviceInfo(MediaStreamType service_param,
const std::string& name_param,
const std::string& device_param);
StreamDeviceInfo(MediaStreamType service_param,
const std::string& name_param,
const std::string& device_param,
int sample_rate,
int channel_layout,
int frames_per_buffer);
static bool IsEqual(const StreamDeviceInfo& first,
const StreamDeviceInfo& second);
MediaStreamDevice device;
// Id for this capture session. Unique for all sessions of the same type.
int session_id;
};
typedef std::vector<StreamDeviceInfo> StreamDeviceInfoArray;
} // namespace content
#endif // CONTENT_COMMON_MEDIA_MEDIA_STREAM_OPTIONS_H_
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