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1 /* | 1 /* |
2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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40 class VideoEncoder; | 40 class VideoEncoder; |
41 struct MediaConfig; | 41 struct MediaConfig; |
42 } | 42 } |
43 | 43 |
44 namespace rtc { | 44 namespace rtc { |
45 class Thread; | 45 class Thread; |
46 } // namespace rtc | 46 } // namespace rtc |
47 | 47 |
48 namespace cricket { | 48 namespace cricket { |
49 | 49 |
| 50 class DecoderFactoryAdapter; |
50 class EncoderFactoryAdapter; | 51 class EncoderFactoryAdapter; |
51 class VideoCapturer; | 52 class VideoCapturer; |
52 class VideoProcessor; | 53 class VideoProcessor; |
53 class VideoRenderer; | 54 class VideoRenderer; |
54 class VoiceMediaChannel; | 55 class VoiceMediaChannel; |
55 class WebRtcDecoderObserver; | 56 class WebRtcDecoderObserver; |
56 class WebRtcEncoderObserver; | 57 class WebRtcEncoderObserver; |
57 class WebRtcLocalStreamInfo; | 58 class WebRtcLocalStreamInfo; |
58 class WebRtcRenderAdapter; | 59 class WebRtcRenderAdapter; |
59 class WebRtcVideoChannel; | 60 class WebRtcVideoChannel; |
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114 void SetExternalDecoderFactory(WebRtcVideoDecoderFactory* decoder_factory); | 115 void SetExternalDecoderFactory(WebRtcVideoDecoderFactory* decoder_factory); |
115 // Set a WebRtcVideoEncoderFactory for external encoding. Video engine does | 116 // Set a WebRtcVideoEncoderFactory for external encoding. Video engine does |
116 // not take the ownership of |encoder_factory|. The caller needs to make sure | 117 // not take the ownership of |encoder_factory|. The caller needs to make sure |
117 // that |encoder_factory| outlives the video engine. | 118 // that |encoder_factory| outlives the video engine. |
118 virtual void SetExternalEncoderFactory( | 119 virtual void SetExternalEncoderFactory( |
119 WebRtcVideoEncoderFactory* encoder_factory); | 120 WebRtcVideoEncoderFactory* encoder_factory); |
120 | 121 |
121 private: | 122 private: |
122 bool initialized_; | 123 bool initialized_; |
123 | 124 |
124 WebRtcVideoDecoderFactory* external_decoder_factory_; | 125 std::unique_ptr<DecoderFactoryAdapter> decoder_factory_; |
125 std::unique_ptr<EncoderFactoryAdapter> encoder_factory_; | 126 std::unique_ptr<EncoderFactoryAdapter> encoder_factory_; |
126 }; | 127 }; |
127 | 128 |
128 class WebRtcVideoChannel : public VideoMediaChannel, public webrtc::Transport { | 129 class WebRtcVideoChannel : public VideoMediaChannel, public webrtc::Transport { |
129 public: | 130 public: |
130 WebRtcVideoChannel(webrtc::Call* call, | 131 WebRtcVideoChannel(webrtc::Call* call, |
131 const MediaConfig& config, | 132 const MediaConfig& config, |
132 const VideoOptions& options, | 133 const VideoOptions& options, |
133 const EncoderFactoryAdapter& encoder_factory, | 134 const EncoderFactoryAdapter& encoder_factory, |
134 WebRtcVideoDecoderFactory* external_decoder_factory); | 135 const DecoderFactoryAdapter& decoder_factory); |
135 ~WebRtcVideoChannel() override; | 136 ~WebRtcVideoChannel() override; |
136 | 137 |
137 // VideoMediaChannel implementation | 138 // VideoMediaChannel implementation |
138 rtc::DiffServCodePoint PreferredDscp() const override; | 139 rtc::DiffServCodePoint PreferredDscp() const override; |
139 | 140 |
140 bool SetSendParameters(const VideoSendParameters& params) override; | 141 bool SetSendParameters(const VideoSendParameters& params) override; |
141 bool SetRecvParameters(const VideoRecvParameters& params) override; | 142 bool SetRecvParameters(const VideoRecvParameters& params) override; |
142 webrtc::RtpParameters GetRtpSendParameters(uint32_t ssrc) const override; | 143 webrtc::RtpParameters GetRtpSendParameters(uint32_t ssrc) const override; |
143 bool SetRtpSendParameters(uint32_t ssrc, | 144 bool SetRtpSendParameters(uint32_t ssrc, |
144 const webrtc::RtpParameters& parameters) override; | 145 const webrtc::RtpParameters& parameters) override; |
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362 | 363 |
363 // Wrapper for the receiver part, contains configs etc. that are needed to | 364 // Wrapper for the receiver part, contains configs etc. that are needed to |
364 // reconstruct the underlying VideoReceiveStream. | 365 // reconstruct the underlying VideoReceiveStream. |
365 class WebRtcVideoReceiveStream | 366 class WebRtcVideoReceiveStream |
366 : public rtc::VideoSinkInterface<webrtc::VideoFrame> { | 367 : public rtc::VideoSinkInterface<webrtc::VideoFrame> { |
367 public: | 368 public: |
368 WebRtcVideoReceiveStream( | 369 WebRtcVideoReceiveStream( |
369 webrtc::Call* call, | 370 webrtc::Call* call, |
370 const StreamParams& sp, | 371 const StreamParams& sp, |
371 webrtc::VideoReceiveStream::Config config, | 372 webrtc::VideoReceiveStream::Config config, |
372 WebRtcVideoDecoderFactory* external_decoder_factory, | 373 const DecoderFactoryAdapter& decoder_factory, |
373 bool default_stream, | 374 bool default_stream, |
374 const std::vector<VideoCodecSettings>& recv_codecs, | 375 const std::vector<VideoCodecSettings>& recv_codecs, |
375 const webrtc::FlexfecReceiveStream::Config& flexfec_config); | 376 const webrtc::FlexfecReceiveStream::Config& flexfec_config); |
376 ~WebRtcVideoReceiveStream(); | 377 ~WebRtcVideoReceiveStream(); |
377 | 378 |
378 const std::vector<uint32_t>& GetSsrcs() const; | 379 const std::vector<uint32_t>& GetSsrcs() const; |
379 rtc::Optional<uint32_t> GetFirstPrimarySsrc() const; | 380 rtc::Optional<uint32_t> GetFirstPrimarySsrc() const; |
380 | 381 |
381 void SetLocalSsrc(uint32_t local_ssrc); | 382 void SetLocalSsrc(uint32_t local_ssrc); |
382 // TODO(deadbeef): Move these feedback parameters into the recv parameters. | 383 // TODO(deadbeef): Move these feedback parameters into the recv parameters. |
383 void SetFeedbackParameters(bool nack_enabled, | 384 void SetFeedbackParameters(bool nack_enabled, |
384 bool remb_enabled, | 385 bool remb_enabled, |
385 bool transport_cc_enabled, | 386 bool transport_cc_enabled, |
386 webrtc::RtcpMode rtcp_mode); | 387 webrtc::RtcpMode rtcp_mode); |
387 void SetRecvParameters(const ChangedRecvParameters& recv_params); | 388 void SetRecvParameters(const ChangedRecvParameters& recv_params); |
388 | 389 |
389 void OnFrame(const webrtc::VideoFrame& frame) override; | 390 void OnFrame(const webrtc::VideoFrame& frame) override; |
390 bool IsDefaultStream() const; | 391 bool IsDefaultStream() const; |
391 | 392 |
392 void SetSink(rtc::VideoSinkInterface<webrtc::VideoFrame>* sink); | 393 void SetSink(rtc::VideoSinkInterface<webrtc::VideoFrame>* sink); |
393 | 394 |
394 VideoReceiverInfo GetVideoReceiverInfo(bool log_stats); | 395 VideoReceiverInfo GetVideoReceiverInfo(bool log_stats); |
395 | 396 |
396 private: | 397 private: |
397 struct AllocatedDecoder { | |
398 AllocatedDecoder(webrtc::VideoDecoder* decoder, | |
399 webrtc::VideoCodecType type, | |
400 bool external); | |
401 webrtc::VideoDecoder* decoder; | |
402 // Decoder wrapped into a fallback decoder to permit software fallback. | |
403 webrtc::VideoDecoder* external_decoder; | |
404 webrtc::VideoCodecType type; | |
405 bool external; | |
406 }; | |
407 | |
408 void RecreateWebRtcVideoStream(); | 398 void RecreateWebRtcVideoStream(); |
409 void MaybeRecreateWebRtcFlexfecStream(); | 399 void MaybeRecreateWebRtcFlexfecStream(); |
410 | 400 |
411 void MaybeAssociateFlexfecWithVideo(); | 401 void MaybeAssociateFlexfecWithVideo(); |
412 void MaybeDissociateFlexfecFromVideo(); | 402 void MaybeDissociateFlexfecFromVideo(); |
413 | 403 |
414 void ConfigureCodecs(const std::vector<VideoCodecSettings>& recv_codecs, | 404 void ConfigureCodecs( |
415 std::vector<AllocatedDecoder>* old_codecs); | 405 const std::vector<VideoCodecSettings>& recv_codecs, |
| 406 std::map<webrtc::VideoCodecType, std::unique_ptr<webrtc::VideoDecoder>>* |
| 407 old_codecs); |
416 void ConfigureFlexfecCodec(int flexfec_payload_type); | 408 void ConfigureFlexfecCodec(int flexfec_payload_type); |
417 AllocatedDecoder CreateOrReuseVideoDecoder( | |
418 std::vector<AllocatedDecoder>* old_decoder, | |
419 const VideoCodec& codec); | |
420 void ClearDecoders(std::vector<AllocatedDecoder>* allocated_decoders); | |
421 | 409 |
422 std::string GetCodecNameFromPayloadType(int payload_type); | 410 std::string GetCodecNameFromPayloadType(int payload_type); |
423 | 411 |
424 webrtc::Call* const call_; | 412 webrtc::Call* const call_; |
425 StreamParams stream_params_; | 413 StreamParams stream_params_; |
426 | 414 |
427 // Both |stream_| and |flexfec_stream_| are managed by |this|. They are | 415 // Both |stream_| and |flexfec_stream_| are managed by |this|. They are |
428 // destroyed by calling call_->DestroyVideoReceiveStream and | 416 // destroyed by calling call_->DestroyVideoReceiveStream and |
429 // call_->DestroyFlexfecReceiveStream, respectively. | 417 // call_->DestroyFlexfecReceiveStream, respectively. |
430 webrtc::VideoReceiveStream* stream_; | 418 webrtc::VideoReceiveStream* stream_; |
431 const bool default_stream_; | 419 const bool default_stream_; |
432 webrtc::VideoReceiveStream::Config config_; | 420 webrtc::VideoReceiveStream::Config config_; |
433 webrtc::FlexfecReceiveStream::Config flexfec_config_; | 421 webrtc::FlexfecReceiveStream::Config flexfec_config_; |
434 webrtc::FlexfecReceiveStream* flexfec_stream_; | 422 webrtc::FlexfecReceiveStream* flexfec_stream_; |
435 | 423 |
436 WebRtcVideoDecoderFactory* const external_decoder_factory_; | 424 std::unique_ptr<DecoderFactoryAdapter> decoder_factory_; |
437 std::vector<AllocatedDecoder> allocated_decoders_; | 425 std::map<webrtc::VideoCodecType, std::unique_ptr<webrtc::VideoDecoder>> |
| 426 allocated_decoders_; |
438 | 427 |
439 rtc::CriticalSection sink_lock_; | 428 rtc::CriticalSection sink_lock_; |
440 rtc::VideoSinkInterface<webrtc::VideoFrame>* sink_ GUARDED_BY(sink_lock_); | 429 rtc::VideoSinkInterface<webrtc::VideoFrame>* sink_ GUARDED_BY(sink_lock_); |
441 // Expands remote RTP timestamps to int64_t to be able to estimate how long | 430 // Expands remote RTP timestamps to int64_t to be able to estimate how long |
442 // the stream has been running. | 431 // the stream has been running. |
443 rtc::TimestampWrapAroundHandler timestamp_wraparound_handler_ | 432 rtc::TimestampWrapAroundHandler timestamp_wraparound_handler_ |
444 GUARDED_BY(sink_lock_); | 433 GUARDED_BY(sink_lock_); |
445 int64_t first_frame_timestamp_ GUARDED_BY(sink_lock_); | 434 int64_t first_frame_timestamp_ GUARDED_BY(sink_lock_); |
446 // Start NTP time is estimated as current remote NTP time (estimated from | 435 // Start NTP time is estimated as current remote NTP time (estimated from |
447 // RTCP) minus the elapsed time, as soon as remote NTP time is available. | 436 // RTCP) minus the elapsed time, as soon as remote NTP time is available. |
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490 GUARDED_BY(stream_crit_); | 479 GUARDED_BY(stream_crit_); |
491 std::map<uint32_t, WebRtcVideoReceiveStream*> receive_streams_ | 480 std::map<uint32_t, WebRtcVideoReceiveStream*> receive_streams_ |
492 GUARDED_BY(stream_crit_); | 481 GUARDED_BY(stream_crit_); |
493 std::set<uint32_t> send_ssrcs_ GUARDED_BY(stream_crit_); | 482 std::set<uint32_t> send_ssrcs_ GUARDED_BY(stream_crit_); |
494 std::set<uint32_t> receive_ssrcs_ GUARDED_BY(stream_crit_); | 483 std::set<uint32_t> receive_ssrcs_ GUARDED_BY(stream_crit_); |
495 | 484 |
496 rtc::Optional<VideoCodecSettings> send_codec_; | 485 rtc::Optional<VideoCodecSettings> send_codec_; |
497 rtc::Optional<std::vector<webrtc::RtpExtension>> send_rtp_extensions_; | 486 rtc::Optional<std::vector<webrtc::RtpExtension>> send_rtp_extensions_; |
498 | 487 |
499 std::unique_ptr<EncoderFactoryAdapter> encoder_factory_; | 488 std::unique_ptr<EncoderFactoryAdapter> encoder_factory_; |
500 WebRtcVideoDecoderFactory* const external_decoder_factory_; | 489 std::unique_ptr<DecoderFactoryAdapter> decoder_factory_; |
501 std::vector<VideoCodecSettings> recv_codecs_; | 490 std::vector<VideoCodecSettings> recv_codecs_; |
502 std::vector<webrtc::RtpExtension> recv_rtp_extensions_; | 491 std::vector<webrtc::RtpExtension> recv_rtp_extensions_; |
503 // See reason for keeping track of the FlexFEC payload type separately in | 492 // See reason for keeping track of the FlexFEC payload type separately in |
504 // comment in WebRtcVideoChannel::ChangedRecvParameters. | 493 // comment in WebRtcVideoChannel::ChangedRecvParameters. |
505 int recv_flexfec_payload_type_; | 494 int recv_flexfec_payload_type_; |
506 webrtc::Call::Config::BitrateConfig bitrate_config_; | 495 webrtc::Call::Config::BitrateConfig bitrate_config_; |
507 // TODO(deadbeef): Don't duplicate information between | 496 // TODO(deadbeef): Don't duplicate information between |
508 // send_params/recv_params, rtp_extensions, options, etc. | 497 // send_params/recv_params, rtp_extensions, options, etc. |
509 VideoSendParameters send_params_; | 498 VideoSendParameters send_params_; |
510 VideoOptions default_send_options_; | 499 VideoOptions default_send_options_; |
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530 const std::string codec_name_; | 519 const std::string codec_name_; |
531 const int max_qp_; | 520 const int max_qp_; |
532 const int max_framerate_; | 521 const int max_framerate_; |
533 const bool is_screencast_; | 522 const bool is_screencast_; |
534 const bool conference_mode_; | 523 const bool conference_mode_; |
535 }; | 524 }; |
536 | 525 |
537 } // namespace cricket | 526 } // namespace cricket |
538 | 527 |
539 #endif // WEBRTC_MEDIA_ENGINE_WEBRTCVIDEOENGINE_H_ | 528 #endif // WEBRTC_MEDIA_ENGINE_WEBRTCVIDEOENGINE_H_ |
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