28e2075280
trunk/talk git-svn-id: http://webrtc.googlecode.com/svn/trunk@4318 4adac7df-926f-26a2-2b94-8c16560cd09d
90 lines
3.4 KiB
C++
90 lines
3.4 KiB
C++
/*
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* libjingle
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* Copyright 2013, Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TALK_MEDIA_WEBRTC_WEBRTCVIDEOENCODERFACTORY_H_
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#define TALK_MEDIA_WEBRTC_WEBRTCVIDEOENCODERFACTORY_H_
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#include "talk/base/refcount.h"
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#include "talk/media/base/codec.h"
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#include "webrtc/common_types.h"
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namespace webrtc {
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class VideoEncoder;
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}
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namespace cricket {
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class WebRtcVideoEncoderFactory {
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public:
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struct VideoCodec {
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webrtc::VideoCodecType type;
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std::string name;
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int max_width;
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int max_height;
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int max_fps;
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VideoCodec(webrtc::VideoCodecType t, const std::string& nm, int w, int h,
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int fr)
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: type(t), name(nm), max_width(w), max_height(h), max_fps(fr) {
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}
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};
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class Observer {
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public:
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// Invoked when the list of supported codecs becomes available.
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// This will not be invoked if the list of codecs is already available when
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// the factory is installed. Otherwise this will be invoked only once if the
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// list of codecs is not yet available when the factory is installed.
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virtual void OnCodecsAvailable() = 0;
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protected:
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virtual ~Observer() {}
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};
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// Caller takes the ownership of the returned object and it should be released
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// by calling DestroyVideoEncoder().
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virtual webrtc::VideoEncoder* CreateVideoEncoder(
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webrtc::VideoCodecType type) = 0;
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virtual ~WebRtcVideoEncoderFactory() {}
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// Adds/removes observer to receive OnCodecsChanged notifications.
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// Factory must outlive Observer. Observer is responsible for removing itself
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// from the Factory by the time its dtor is done.
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virtual void AddObserver(Observer* observer) = 0;
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virtual void RemoveObserver(Observer* observer) = 0;
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// Returns a list of supported codecs in order of preference.
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// The list is empty if the list of codecs is not yet available.
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virtual const std::vector<VideoCodec>& codecs() const = 0;
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virtual void DestroyVideoEncoder(webrtc::VideoEncoder* encoder) = 0;
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};
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} // namespace cricket
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#endif // TALK_MEDIA_WEBRTC_WEBRTCVIDEOENCODERFACTORY_H_
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