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28 #ifndef TALK_MEDIA_WEBRTC_WEBRTCVIDEOENCODERFACTORY_H_
29 #define TALK_MEDIA_WEBRTC_WEBRTCVIDEOENCODERFACTORY_H_
31 #include "talk/base/refcount.h"
32 #include "talk/media/base/codec.h"
33 #include "webrtc/common_types.h"
41 class WebRtcVideoEncoderFactory {
44 webrtc::VideoCodecType type;
50 VideoCodec(webrtc::VideoCodecType t, const std::string& nm, int w, int h,
52 : type(t), name(nm), max_width(w), max_height(h), max_fps(fr) {
58 // Invoked when the list of supported codecs becomes available.
59 // This will not be invoked if the list of codecs is already available when
60 // the factory is installed. Otherwise this will be invoked only once if the
61 // list of codecs is not yet available when the factory is installed.
62 virtual void OnCodecsAvailable() = 0;
65 virtual ~Observer() {}
68 // Caller takes the ownership of the returned object and it should be released
69 // by calling DestroyVideoEncoder().
70 virtual webrtc::VideoEncoder* CreateVideoEncoder(
71 webrtc::VideoCodecType type) = 0;
72 virtual ~WebRtcVideoEncoderFactory() {}
74 // Adds/removes observer to receive OnCodecsChanged notifications.
75 // Factory must outlive Observer. Observer is responsible for removing itself
76 // from the Factory by the time its dtor is done.
77 virtual void AddObserver(Observer* observer) = 0;
78 virtual void RemoveObserver(Observer* observer) = 0;
80 // Returns a list of supported codecs in order of preference.
81 // The list is empty if the list of codecs is not yet available.
82 virtual const std::vector<VideoCodec>& codecs() const = 0;
84 virtual void DestroyVideoEncoder(webrtc::VideoEncoder* encoder) = 0;
87 } // namespace cricket
89 #endif // TALK_MEDIA_WEBRTC_WEBRTCVIDEOENCODERFACTORY_H_