1 /* 2 * libjingle 3 * Copyright 2013 Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef TALK_MEDIA_WEBRTC_WEBRTCVIDEOENCODERFACTORY_H_ 29 #define TALK_MEDIA_WEBRTC_WEBRTCVIDEOENCODERFACTORY_H_ 30 31 #include "talk/media/base/codec.h" 32 #include "webrtc/base/refcount.h" 33 #include "webrtc/common_types.h" 34 35 namespace webrtc { 36 class VideoEncoder; 37 } 38 39 namespace cricket { 40 41 class WebRtcVideoEncoderFactory { 42 public: 43 struct VideoCodec { 44 webrtc::VideoCodecType type; 45 std::string name; 46 int max_width; 47 int max_height; 48 int max_fps; 49 VideoCodecVideoCodec50 VideoCodec(webrtc::VideoCodecType t, const std::string& nm, int w, int h, 51 int fr) 52 : type(t), name(nm), max_width(w), max_height(h), max_fps(fr) { 53 } 54 }; 55 ~WebRtcVideoEncoderFactory()56 virtual ~WebRtcVideoEncoderFactory() {} 57 58 // Caller takes the ownership of the returned object and it should be released 59 // by calling DestroyVideoEncoder(). 60 virtual webrtc::VideoEncoder* CreateVideoEncoder( 61 webrtc::VideoCodecType type) = 0; 62 63 // Returns a list of supported codecs in order of preference. 64 virtual const std::vector<VideoCodec>& codecs() const = 0; 65 66 // Returns true if encoders created by this factory of the given codec type 67 // will use internal camera sources, meaning that they don't require/expect 68 // frames to be delivered via webrtc::VideoEncoder::Encode. This flag is used 69 // as the internal_source parameter to 70 // webrtc::ViEExternalCodec::RegisterExternalSendCodec. EncoderTypeHasInternalSource(webrtc::VideoCodecType type)71 virtual bool EncoderTypeHasInternalSource(webrtc::VideoCodecType type) const { 72 return false; 73 } 74 75 virtual void DestroyVideoEncoder(webrtc::VideoEncoder* encoder) = 0; 76 }; 77 78 } // namespace cricket 79 80 #endif // TALK_MEDIA_WEBRTC_WEBRTCVIDEOENCODERFACTORY_H_ 81