| /* |
| * libjingle |
| * Copyright 2014 Google Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifdef HAVE_WEBRTC_VIDEO |
| #include "talk/media/webrtc/webrtcvideoengine2.h" |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include <math.h> |
| |
| #include <string> |
| |
| #include "libyuv/convert_from.h" |
| #include "talk/base/buffer.h" |
| #include "talk/base/logging.h" |
| #include "talk/base/stringutils.h" |
| #include "talk/media/base/videocapturer.h" |
| #include "talk/media/base/videorenderer.h" |
| #include "talk/media/webrtc/webrtcvideocapturer.h" |
| #include "talk/media/webrtc/webrtcvideoframe.h" |
| #include "talk/media/webrtc/webrtcvoiceengine.h" |
| #include "webrtc/call.h" |
| // TODO(pbos): Move codecs out of modules (webrtc:3070). |
| #include "webrtc/modules/video_coding/codecs/vp8/include/vp8.h" |
| |
| #define UNIMPLEMENTED \ |
| LOG(LS_ERROR) << "Call to unimplemented function " << __FUNCTION__; \ |
| ASSERT(false) |
| |
| namespace cricket { |
| |
| static const int kCpuMonitorPeriodMs = 2000; // 2 seconds. |
| |
| // This constant is really an on/off, lower-level configurable NACK history |
| // duration hasn't been implemented. |
| static const int kNackHistoryMs = 1000; |
| |
| static const int kDefaultFramerate = 30; |
| static const int kMinVideoBitrate = 50; |
| static const int kMaxVideoBitrate = 2000; |
| |
| static const int kVideoMtu = 1200; |
| static const int kVideoRtpBufferSize = 65536; |
| |
| static const char kVp8PayloadName[] = "VP8"; |
| |
| static const int kDefaultRtcpReceiverReportSsrc = 1; |
| |
| struct VideoCodecPref { |
| int payload_type; |
| const char* name; |
| int rtx_payload_type; |
| } kDefaultVideoCodecPref = {100, kVp8PayloadName, 96}; |
| |
| VideoCodecPref kRedPref = {116, kRedCodecName, -1}; |
| VideoCodecPref kUlpfecPref = {117, kUlpfecCodecName, -1}; |
| |
| // The formats are sorted by the descending order of width. We use the order to |
| // find the next format for CPU and bandwidth adaptation. |
| const VideoFormatPod kDefaultVideoFormat = { |
| 640, 400, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}; |
| const VideoFormatPod kVideoFormats[] = { |
| {1280, 800, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| {1280, 720, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| {960, 600, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| {960, 540, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| kDefaultVideoFormat, |
| {640, 360, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| {640, 480, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| {480, 300, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| {480, 270, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| {480, 360, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| {320, 200, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| {320, 180, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| {320, 240, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| {240, 150, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| {240, 135, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| {240, 180, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| {160, 100, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| {160, 90, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, |
| {160, 120, FPS_TO_INTERVAL(kDefaultFramerate), FOURCC_ANY}, }; |
| |
| static bool FindFirstMatchingCodec(const std::vector<VideoCodec>& codecs, |
| const VideoCodec& requested_codec, |
| VideoCodec* matching_codec) { |
| for (size_t i = 0; i < codecs.size(); ++i) { |
| if (requested_codec.Matches(codecs[i])) { |
| *matching_codec = codecs[i]; |
| return true; |
| } |
| } |
| return false; |
| } |
| static bool FindBestVideoFormat(int max_width, |
| int max_height, |
| int aspect_width, |
| int aspect_height, |
| VideoFormat* video_format) { |
| assert(max_width > 0); |
| assert(max_height > 0); |
| assert(aspect_width > 0); |
| assert(aspect_height > 0); |
| VideoFormat best_format; |
| for (int i = 0; i < ARRAY_SIZE(kVideoFormats); ++i) { |
| const VideoFormat format(kVideoFormats[i]); |
| |
| // Skip any format that is larger than the local or remote maximums, or |
| // smaller than the current best match |
| if (format.width > max_width || format.height > max_height || |
| (format.width < best_format.width && |
| format.height < best_format.height)) { |
| continue; |
| } |
| |
| // If we don't have any matches yet, this is the best so far. |
| if (best_format.width == 0) { |
| best_format = format; |
| continue; |
| } |
| |
| // Prefer closer aspect ratios i.e: |
| // |format| aspect - requested aspect < |
| // |best_format| aspect - requested aspect |
| if (abs(format.width * aspect_height * best_format.height - |
| aspect_width * format.height * best_format.height) < |
| abs(best_format.width * aspect_height * format.height - |
| aspect_width * format.height * best_format.height)) { |
| best_format = format; |
| } |
| } |
| if (best_format.width != 0) { |
| *video_format = best_format; |
| return true; |
| } |
| return false; |
| } |
| |
| static VideoCodec DefaultVideoCodec() { |
| VideoCodec default_codec(kDefaultVideoCodecPref.payload_type, |
| kDefaultVideoCodecPref.name, |
| kDefaultVideoFormat.width, |
| kDefaultVideoFormat.height, |
| kDefaultFramerate, |
| 0); |
| return default_codec; |
| } |
| |
| static VideoCodec DefaultRedCodec() { |
| return VideoCodec(kRedPref.payload_type, kRedPref.name, 0, 0, 0, 0); |
| } |
| |
| static VideoCodec DefaultUlpfecCodec() { |
| return VideoCodec(kUlpfecPref.payload_type, kUlpfecPref.name, 0, 0, 0, 0); |
| } |
| |
| static std::vector<VideoCodec> DefaultVideoCodecs() { |
| std::vector<VideoCodec> codecs; |
| codecs.push_back(DefaultVideoCodec()); |
| codecs.push_back(DefaultRedCodec()); |
| codecs.push_back(DefaultUlpfecCodec()); |
| if (kDefaultVideoCodecPref.rtx_payload_type != -1) { |
| codecs.push_back( |
| VideoCodec::CreateRtxCodec(kDefaultVideoCodecPref.rtx_payload_type, |
| kDefaultVideoCodecPref.payload_type)); |
| } |
| return codecs; |
| } |
| |
| class DefaultVideoEncoderFactory : public WebRtcVideoEncoderFactory2 { |
| public: |
| virtual bool CreateEncoderSettings( |
| webrtc::VideoSendStream::Config::EncoderSettings* encoder_settings, |
| const VideoOptions& options, |
| const VideoCodec& codec, |
| size_t num_streams) OVERRIDE { |
| if (num_streams != 1) { |
| LOG(LS_ERROR) << "Unsupported number of streams: " << num_streams; |
| return false; |
| } |
| if (!SupportsCodec(codec)) { |
| LOG(LS_ERROR) << "Can't create encoder settings for unsupported codec: '" |
| << codec.name << "'"; |
| return false; |
| } |
| |
| *encoder_settings = webrtc::VideoSendStream::Config::EncoderSettings(); |
| |
| webrtc::VideoStream stream; |
| stream.width = codec.width; |
| stream.height = codec.height; |
| stream.max_framerate = |
| codec.framerate != 0 ? codec.framerate : kDefaultFramerate; |
| |
| int min_bitrate = kMinVideoBitrate; |
| codec.GetParam(kCodecParamMinBitrate, &min_bitrate); |
| int max_bitrate = kMaxVideoBitrate; |
| codec.GetParam(kCodecParamMaxBitrate, &max_bitrate); |
| stream.min_bitrate_bps = min_bitrate * 1000; |
| stream.target_bitrate_bps = stream.max_bitrate_bps = max_bitrate * 1000; |
| |
| int max_qp = 56; |
| codec.GetParam(kCodecParamMaxQuantization, &max_qp); |
| stream.max_qp = max_qp; |
| encoder_settings->streams.push_back(stream); |
| |
| encoder_settings->encoder = webrtc::VP8Encoder::Create(); |
| encoder_settings->payload_type = kDefaultVideoCodecPref.payload_type; |
| encoder_settings->payload_name = kDefaultVideoCodecPref.name; |
| |
| return true; |
| } |
| |
| virtual bool SupportsCodec(const VideoCodec& codec) OVERRIDE { |
| return _stricmp(codec.name.c_str(), kVp8PayloadName) == 0; |
| } |
| } default_encoder_factory; |
| |
| WebRtcVideoEngine2::WebRtcVideoEngine2() { |
| // Construct without a factory or voice engine. |
| Construct(NULL, NULL, new talk_base::CpuMonitor(NULL)); |
| } |
| |
| WebRtcVideoEngine2::WebRtcVideoEngine2( |
| WebRtcVideoChannelFactory* channel_factory) { |
| // Construct without a voice engine. |
| Construct(channel_factory, NULL, new talk_base::CpuMonitor(NULL)); |
| } |
| |
| void WebRtcVideoEngine2::Construct(WebRtcVideoChannelFactory* channel_factory, |
| WebRtcVoiceEngine* voice_engine, |
| talk_base::CpuMonitor* cpu_monitor) { |
| LOG(LS_INFO) << "WebRtcVideoEngine2::WebRtcVideoEngine2"; |
| worker_thread_ = NULL; |
| voice_engine_ = voice_engine; |
| initialized_ = false; |
| capture_started_ = false; |
| cpu_monitor_.reset(cpu_monitor); |
| channel_factory_ = channel_factory; |
| |
| video_codecs_ = DefaultVideoCodecs(); |
| default_codec_format_ = VideoFormat(kDefaultVideoFormat); |
| } |
| |
| WebRtcVideoEngine2::~WebRtcVideoEngine2() { |
| LOG(LS_INFO) << "WebRtcVideoEngine2::~WebRtcVideoEngine2"; |
| |
| if (initialized_) { |
| Terminate(); |
| } |
| } |
| |
| bool WebRtcVideoEngine2::Init(talk_base::Thread* worker_thread) { |
| LOG(LS_INFO) << "WebRtcVideoEngine2::Init"; |
| worker_thread_ = worker_thread; |
| ASSERT(worker_thread_ != NULL); |
| |
| cpu_monitor_->set_thread(worker_thread_); |
| if (!cpu_monitor_->Start(kCpuMonitorPeriodMs)) { |
| LOG(LS_ERROR) << "Failed to start CPU monitor."; |
| cpu_monitor_.reset(); |
| } |
| |
| initialized_ = true; |
| return true; |
| } |
| |
| void WebRtcVideoEngine2::Terminate() { |
| LOG(LS_INFO) << "WebRtcVideoEngine2::Terminate"; |
| |
| cpu_monitor_->Stop(); |
| |
| initialized_ = false; |
| } |
| |
| int WebRtcVideoEngine2::GetCapabilities() { return VIDEO_RECV | VIDEO_SEND; } |
| |
| bool WebRtcVideoEngine2::SetOptions(const VideoOptions& options) { |
| // TODO(pbos): Do we need this? This is a no-op in the existing |
| // WebRtcVideoEngine implementation. |
| LOG(LS_VERBOSE) << "SetOptions: " << options.ToString(); |
| // options_ = options; |
| return true; |
| } |
| |
| bool WebRtcVideoEngine2::SetDefaultEncoderConfig( |
| const VideoEncoderConfig& config) { |
| // TODO(pbos): Implement. Should be covered by corresponding unit tests. |
| LOG(LS_VERBOSE) << "SetDefaultEncoderConfig()"; |
| return true; |
| } |
| |
| VideoEncoderConfig WebRtcVideoEngine2::GetDefaultEncoderConfig() const { |
| return VideoEncoderConfig(DefaultVideoCodec()); |
| } |
| |
| WebRtcVideoChannel2* WebRtcVideoEngine2::CreateChannel( |
| VoiceMediaChannel* voice_channel) { |
| LOG(LS_INFO) << "CreateChannel: " |
| << (voice_channel != NULL ? "With" : "Without") |
| << " voice channel."; |
| WebRtcVideoChannel2* channel = |
| channel_factory_ != NULL |
| ? channel_factory_->Create(this, voice_channel) |
| : new WebRtcVideoChannel2( |
| this, voice_channel, GetDefaultVideoEncoderFactory()); |
| if (!channel->Init()) { |
| delete channel; |
| return NULL; |
| } |
| return channel; |
| } |
| |
| const std::vector<VideoCodec>& WebRtcVideoEngine2::codecs() const { |
| return video_codecs_; |
| } |
| |
| const std::vector<RtpHeaderExtension>& |
| WebRtcVideoEngine2::rtp_header_extensions() const { |
| return rtp_header_extensions_; |
| } |
| |
| void WebRtcVideoEngine2::SetLogging(int min_sev, const char* filter) { |
| // TODO(pbos): Set up logging. |
| LOG(LS_VERBOSE) << "SetLogging: " << min_sev << '"' << filter << '"'; |
| // if min_sev == -1, we keep the current log level. |
| if (min_sev < 0) { |
| assert(min_sev == -1); |
| return; |
| } |
| } |
| |
| bool WebRtcVideoEngine2::EnableTimedRender() { |
| // TODO(pbos): Figure out whether this can be removed. |
| return true; |
| } |
| |
| bool WebRtcVideoEngine2::SetLocalRenderer(VideoRenderer* renderer) { |
| // TODO(pbos): Implement or remove. Unclear which stream should be rendered |
| // locally even. |
| return true; |
| } |
| |
| // Checks to see whether we comprehend and could receive a particular codec |
| bool WebRtcVideoEngine2::FindCodec(const VideoCodec& in) { |
| // TODO(pbos): Probe encoder factory to figure out that the codec is supported |
| // if supported by the encoder factory. Add a corresponding test that fails |
| // with this code (that doesn't ask the factory). |
| for (int i = 0; i < ARRAY_SIZE(kVideoFormats); ++i) { |
| const VideoFormat fmt(kVideoFormats[i]); |
| if ((in.width != 0 || in.height != 0) && |
| (fmt.width != in.width || fmt.height != in.height)) { |
| continue; |
| } |
| for (size_t j = 0; j < video_codecs_.size(); ++j) { |
| VideoCodec codec(video_codecs_[j].id, video_codecs_[j].name, 0, 0, 0, 0); |
| if (codec.Matches(in)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| // Tells whether the |requested| codec can be transmitted or not. If it can be |
| // transmitted |out| is set with the best settings supported. Aspect ratio will |
| // be set as close to |current|'s as possible. If not set |requested|'s |
| // dimensions will be used for aspect ratio matching. |
| bool WebRtcVideoEngine2::CanSendCodec(const VideoCodec& requested, |
| const VideoCodec& current, |
| VideoCodec* out) { |
| assert(out != NULL); |
| // TODO(pbos): Implement. |
| |
| if (requested.width != requested.height && |
| (requested.height == 0 || requested.width == 0)) { |
| // 0xn and nx0 are invalid resolutions. |
| return false; |
| } |
| |
| VideoCodec matching_codec; |
| if (!FindFirstMatchingCodec(video_codecs_, requested, &matching_codec)) { |
| // Codec not supported. |
| return false; |
| } |
| |
| // Pick the best quality that is within their and our bounds and has the |
| // correct aspect ratio. |
| VideoFormat format; |
| if (requested.width == 0 && requested.height == 0) { |
| // Special case with resolution 0. The channel should not send frames. |
| } else { |
| int max_width = talk_base::_min(requested.width, matching_codec.width); |
| int max_height = talk_base::_min(requested.height, matching_codec.height); |
| int aspect_width = max_width; |
| int aspect_height = max_height; |
| if (current.width > 0 && current.height > 0) { |
| aspect_width = current.width; |
| aspect_height = current.height; |
| } |
| if (!FindBestVideoFormat( |
| max_width, max_height, aspect_width, aspect_height, &format)) { |
| return false; |
| } |
| } |
| |
| out->id = requested.id; |
| out->name = requested.name; |
| out->preference = requested.preference; |
| out->params = requested.params; |
| out->framerate = |
| talk_base::_min(requested.framerate, matching_codec.framerate); |
| out->width = format.width; |
| out->height = format.height; |
| out->params = requested.params; |
| out->feedback_params = requested.feedback_params; |
| return true; |
| } |
| |
| bool WebRtcVideoEngine2::SetVoiceEngine(WebRtcVoiceEngine* voice_engine) { |
| if (initialized_) { |
| LOG(LS_WARNING) << "SetVoiceEngine can not be called after Init"; |
| return false; |
| } |
| voice_engine_ = voice_engine; |
| return true; |
| } |
| |
| // Ignore spammy trace messages, mostly from the stats API when we haven't |
| // gotten RTCP info yet from the remote side. |
| bool WebRtcVideoEngine2::ShouldIgnoreTrace(const std::string& trace) { |
| static const char* const kTracesToIgnore[] = {NULL}; |
| for (const char* const* p = kTracesToIgnore; *p; ++p) { |
| if (trace.find(*p) == 0) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| WebRtcVideoEncoderFactory2* WebRtcVideoEngine2::GetDefaultVideoEncoderFactory() |
| const { |
| return &default_encoder_factory; |
| } |
| |
| // Thin map between cricket::VideoFrame and an existing webrtc::I420VideoFrame |
| // to avoid having to copy the rendered VideoFrame prematurely. |
| // This implementation is only safe to use in a const context and should never |
| // be written to. |
| class WebRtcVideoRenderFrame : public cricket::VideoFrame { |
| public: |
| explicit WebRtcVideoRenderFrame(const webrtc::I420VideoFrame* frame) |
| : frame_(frame) {} |
| |
| virtual bool InitToBlack(int w, |
| int h, |
| size_t pixel_width, |
| size_t pixel_height, |
| int64 elapsed_time, |
| int64 time_stamp) OVERRIDE { |
| UNIMPLEMENTED; |
| return false; |
| } |
| |
| virtual bool Reset(uint32 fourcc, |
| int w, |
| int h, |
| int dw, |
| int dh, |
| uint8* sample, |
| size_t sample_size, |
| size_t pixel_width, |
| size_t pixel_height, |
| int64 elapsed_time, |
| int64 time_stamp, |
| int rotation) OVERRIDE { |
| UNIMPLEMENTED; |
| return false; |
| } |
| |
| virtual size_t GetWidth() const OVERRIDE { |
| return static_cast<size_t>(frame_->width()); |
| } |
| virtual size_t GetHeight() const OVERRIDE { |
| return static_cast<size_t>(frame_->height()); |
| } |
| |
| virtual const uint8* GetYPlane() const OVERRIDE { |
| return frame_->buffer(webrtc::kYPlane); |
| } |
| virtual const uint8* GetUPlane() const OVERRIDE { |
| return frame_->buffer(webrtc::kUPlane); |
| } |
| virtual const uint8* GetVPlane() const OVERRIDE { |
| return frame_->buffer(webrtc::kVPlane); |
| } |
| |
| virtual uint8* GetYPlane() OVERRIDE { |
| UNIMPLEMENTED; |
| return NULL; |
| } |
| virtual uint8* GetUPlane() OVERRIDE { |
| UNIMPLEMENTED; |
| return NULL; |
| } |
| virtual uint8* GetVPlane() OVERRIDE { |
| UNIMPLEMENTED; |
| return NULL; |
| } |
| |
| virtual int32 GetYPitch() const OVERRIDE { |
| return frame_->stride(webrtc::kYPlane); |
| } |
| virtual int32 GetUPitch() const OVERRIDE { |
| return frame_->stride(webrtc::kUPlane); |
| } |
| virtual int32 GetVPitch() const OVERRIDE { |
| return frame_->stride(webrtc::kVPlane); |
| } |
| |
| virtual void* GetNativeHandle() const OVERRIDE { return NULL; } |
| |
| virtual size_t GetPixelWidth() const OVERRIDE { return 1; } |
| virtual size_t GetPixelHeight() const OVERRIDE { return 1; } |
| |
| virtual int64 GetElapsedTime() const OVERRIDE { |
| // Convert millisecond render time to ns timestamp. |
| return frame_->render_time_ms() * talk_base::kNumNanosecsPerMillisec; |
| } |
| virtual int64 GetTimeStamp() const OVERRIDE { |
| // Convert 90K rtp timestamp to ns timestamp. |
| return (frame_->timestamp() / 90) * talk_base::kNumNanosecsPerMillisec; |
| } |
| virtual void SetElapsedTime(int64 elapsed_time) OVERRIDE { UNIMPLEMENTED; } |
| virtual void SetTimeStamp(int64 time_stamp) OVERRIDE { UNIMPLEMENTED; } |
| |
| virtual int GetRotation() const OVERRIDE { |
| UNIMPLEMENTED; |
| return ROTATION_0; |
| } |
| |
| virtual VideoFrame* Copy() const OVERRIDE { |
| UNIMPLEMENTED; |
| return NULL; |
| } |
| |
| virtual bool MakeExclusive() OVERRIDE { |
| UNIMPLEMENTED; |
| return false; |
| } |
| |
| virtual size_t CopyToBuffer(uint8* buffer, size_t size) const { |
| UNIMPLEMENTED; |
| return 0; |
| } |
| |
| // TODO(fbarchard): Refactor into base class and share with LMI |
| virtual size_t ConvertToRgbBuffer(uint32 to_fourcc, |
| uint8* buffer, |
| size_t size, |
| int stride_rgb) const OVERRIDE { |
| size_t width = GetWidth(); |
| size_t height = GetHeight(); |
| size_t needed = (stride_rgb >= 0 ? stride_rgb : -stride_rgb) * height; |
| if (size < needed) { |
| LOG(LS_WARNING) << "RGB buffer is not large enough"; |
| return needed; |
| } |
| |
| if (libyuv::ConvertFromI420(GetYPlane(), |
| GetYPitch(), |
| GetUPlane(), |
| GetUPitch(), |
| GetVPlane(), |
| GetVPitch(), |
| buffer, |
| stride_rgb, |
| static_cast<int>(width), |
| static_cast<int>(height), |
| to_fourcc)) { |
| LOG(LS_ERROR) << "RGB type not supported: " << to_fourcc; |
| return 0; // 0 indicates error |
| } |
| return needed; |
| } |
| |
| protected: |
| virtual VideoFrame* CreateEmptyFrame(int w, |
| int h, |
| size_t pixel_width, |
| size_t pixel_height, |
| int64 elapsed_time, |
| int64 time_stamp) const OVERRIDE { |
| // TODO(pbos): Remove WebRtcVideoFrame dependency, and have a non-const |
| // version of I420VideoFrame wrapped. |
| WebRtcVideoFrame* frame = new WebRtcVideoFrame(); |
| frame->InitToBlack( |
| w, h, pixel_width, pixel_height, elapsed_time, time_stamp); |
| return frame; |
| } |
| |
| private: |
| const webrtc::I420VideoFrame* const frame_; |
| }; |
| |
| WebRtcVideoRenderer::WebRtcVideoRenderer() |
| : last_width_(-1), last_height_(-1), renderer_(NULL) {} |
| |
| void WebRtcVideoRenderer::RenderFrame(const webrtc::I420VideoFrame& frame, |
| int time_to_render_ms) { |
| talk_base::CritScope crit(&lock_); |
| if (renderer_ == NULL) { |
| LOG(LS_WARNING) << "VideoReceiveStream not connected to a VideoRenderer."; |
| return; |
| } |
| |
| if (frame.width() != last_width_ || frame.height() != last_height_) { |
| SetSize(frame.width(), frame.height()); |
| } |
| |
| LOG(LS_VERBOSE) << "RenderFrame: (" << frame.width() << "x" << frame.height() |
| << ")"; |
| |
| const WebRtcVideoRenderFrame render_frame(&frame); |
| renderer_->RenderFrame(&render_frame); |
| } |
| |
| void WebRtcVideoRenderer::SetRenderer(cricket::VideoRenderer* renderer) { |
| talk_base::CritScope crit(&lock_); |
| renderer_ = renderer; |
| if (renderer_ != NULL && last_width_ != -1) { |
| SetSize(last_width_, last_height_); |
| } |
| } |
| |
| VideoRenderer* WebRtcVideoRenderer::GetRenderer() { |
| talk_base::CritScope crit(&lock_); |
| return renderer_; |
| } |
| |
| void WebRtcVideoRenderer::SetSize(int width, int height) { |
| talk_base::CritScope crit(&lock_); |
| if (!renderer_->SetSize(width, height, 0)) { |
| LOG(LS_ERROR) << "Could not set renderer size."; |
| } |
| last_width_ = width; |
| last_height_ = height; |
| } |
| |
| // WebRtcVideoChannel2 |
| |
| WebRtcVideoChannel2::WebRtcVideoChannel2( |
| WebRtcVideoEngine2* engine, |
| VoiceMediaChannel* voice_channel, |
| WebRtcVideoEncoderFactory2* encoder_factory) |
| : encoder_factory_(encoder_factory) { |
| // TODO(pbos): Connect the video and audio with |voice_channel|. |
| webrtc::Call::Config config(this); |
| Construct(webrtc::Call::Create(config), engine); |
| } |
| |
| WebRtcVideoChannel2::WebRtcVideoChannel2( |
| webrtc::Call* call, |
| WebRtcVideoEngine2* engine, |
| WebRtcVideoEncoderFactory2* encoder_factory) |
| : encoder_factory_(encoder_factory) { |
| Construct(call, engine); |
| } |
| |
| void WebRtcVideoChannel2::Construct(webrtc::Call* call, |
| WebRtcVideoEngine2* engine) { |
| rtcp_receiver_report_ssrc_ = kDefaultRtcpReceiverReportSsrc; |
| sending_ = false; |
| call_.reset(call); |
| default_renderer_ = NULL; |
| default_send_ssrc_ = 0; |
| default_recv_ssrc_ = 0; |
| } |
| |
| WebRtcVideoChannel2::~WebRtcVideoChannel2() { |
| for (std::map<uint32, WebRtcVideoSendStream*>::iterator it = |
| send_streams_.begin(); |
| it != send_streams_.end(); |
| ++it) { |
| delete it->second; |
| } |
| |
| for (std::map<uint32, webrtc::VideoReceiveStream*>::iterator it = |
| receive_streams_.begin(); |
| it != receive_streams_.end(); |
| ++it) { |
| assert(it->second != NULL); |
| call_->DestroyVideoReceiveStream(it->second); |
| } |
| |
| for (std::map<uint32, WebRtcVideoRenderer*>::iterator it = renderers_.begin(); |
| it != renderers_.end(); |
| ++it) { |
| assert(it->second != NULL); |
| delete it->second; |
| } |
| } |
| |
| bool WebRtcVideoChannel2::Init() { return true; } |
| |
| namespace { |
| |
| static bool ValidateCodecFormats(const std::vector<VideoCodec>& codecs) { |
| for (size_t i = 0; i < codecs.size(); ++i) { |
| if (!codecs[i].ValidateCodecFormat()) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| static std::string CodecVectorToString(const std::vector<VideoCodec>& codecs) { |
| std::stringstream out; |
| out << '{'; |
| for (size_t i = 0; i < codecs.size(); ++i) { |
| out << codecs[i].ToString(); |
| if (i != codecs.size() - 1) { |
| out << ", "; |
| } |
| } |
| out << '}'; |
| return out.str(); |
| } |
| |
| } // namespace |
| |
| bool WebRtcVideoChannel2::SetRecvCodecs(const std::vector<VideoCodec>& codecs) { |
| // TODO(pbos): Must these receive codecs propagate to existing receive |
| // streams? |
| LOG(LS_INFO) << "SetRecvCodecs: " << CodecVectorToString(codecs); |
| if (!ValidateCodecFormats(codecs)) { |
| return false; |
| } |
| |
| const std::vector<VideoCodecSettings> mapped_codecs = MapCodecs(codecs); |
| if (mapped_codecs.empty()) { |
| LOG(LS_ERROR) << "SetRecvCodecs called without video codec payloads."; |
| return false; |
| } |
| |
| // TODO(pbos): Add a decoder factory which controls supported codecs. |
| // Blocked on webrtc:2854. |
| for (size_t i = 0; i < mapped_codecs.size(); ++i) { |
| if (_stricmp(mapped_codecs[i].codec.name.c_str(), kVp8PayloadName) != 0) { |
| LOG(LS_ERROR) << "SetRecvCodecs called with unsupported codec: '" |
| << mapped_codecs[i].codec.name << "'"; |
| return false; |
| } |
| } |
| |
| recv_codecs_ = mapped_codecs; |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::SetSendCodecs(const std::vector<VideoCodec>& codecs) { |
| LOG(LS_INFO) << "SetSendCodecs: " << CodecVectorToString(codecs); |
| if (!ValidateCodecFormats(codecs)) { |
| return false; |
| } |
| |
| const std::vector<VideoCodecSettings> supported_codecs = |
| FilterSupportedCodecs(MapCodecs(codecs)); |
| |
| if (supported_codecs.empty()) { |
| LOG(LS_ERROR) << "No video codecs supported by encoder factory."; |
| return false; |
| } |
| |
| send_codec_.Set(supported_codecs.front()); |
| LOG(LS_INFO) << "Using codec: " << supported_codecs.front().codec.ToString(); |
| |
| SetCodecForAllSendStreams(supported_codecs.front()); |
| |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::GetSendCodec(VideoCodec* codec) { |
| VideoCodecSettings codec_settings; |
| if (!send_codec_.Get(&codec_settings)) { |
| LOG(LS_VERBOSE) << "GetSendCodec: No send codec set."; |
| return false; |
| } |
| *codec = codec_settings.codec; |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::SetSendStreamFormat(uint32 ssrc, |
| const VideoFormat& format) { |
| LOG(LS_VERBOSE) << "SetSendStreamFormat:" << ssrc << " -> " |
| << format.ToString(); |
| if (send_streams_.find(ssrc) == send_streams_.end()) { |
| return false; |
| } |
| return send_streams_[ssrc]->SetVideoFormat(format); |
| } |
| |
| bool WebRtcVideoChannel2::SetRender(bool render) { |
| // TODO(pbos): Implement. Or refactor away as it shouldn't be needed. |
| LOG(LS_VERBOSE) << "SetRender: " << (render ? "true" : "false"); |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::SetSend(bool send) { |
| LOG(LS_VERBOSE) << "SetSend: " << (send ? "true" : "false"); |
| if (send && !send_codec_.IsSet()) { |
| LOG(LS_ERROR) << "SetSend(true) called before setting codec."; |
| return false; |
| } |
| if (send) { |
| StartAllSendStreams(); |
| } else { |
| StopAllSendStreams(); |
| } |
| sending_ = send; |
| return true; |
| } |
| |
| static bool ConfigureSendSsrcs(webrtc::VideoSendStream::Config* config, |
| const StreamParams& sp) { |
| if (!sp.has_ssrc_groups()) { |
| config->rtp.ssrcs = sp.ssrcs; |
| return true; |
| } |
| |
| if (sp.get_ssrc_group(kFecSsrcGroupSemantics) != NULL) { |
| LOG(LS_ERROR) << "Standalone FEC SSRCs not supported."; |
| return false; |
| } |
| |
| const SsrcGroup* sim_group = sp.get_ssrc_group(kSimSsrcGroupSemantics); |
| if (sim_group == NULL) { |
| LOG(LS_ERROR) << "Grouped StreamParams without regular SSRC group: " |
| << sp.ToString(); |
| return false; |
| } |
| |
| // Map RTX SSRCs. |
| std::vector<uint32_t> rtx_ssrcs; |
| for (size_t i = 0; i < sim_group->ssrcs.size(); ++i) { |
| uint32_t rtx_ssrc; |
| if (!sp.GetFidSsrc(sim_group->ssrcs[i], &rtx_ssrc)) { |
| continue; |
| } |
| rtx_ssrcs.push_back(rtx_ssrc); |
| } |
| if (!rtx_ssrcs.empty() && sim_group->ssrcs.size() != rtx_ssrcs.size()) { |
| LOG(LS_ERROR) |
| << "RTX SSRCs exist, but don't cover all SSRCs (unsupported): " |
| << sp.ToString(); |
| return false; |
| } |
| config->rtp.rtx.ssrcs = rtx_ssrcs; |
| config->rtp.ssrcs = sim_group->ssrcs; |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::AddSendStream(const StreamParams& sp) { |
| LOG(LS_INFO) << "AddSendStream: " << sp.ToString(); |
| if (sp.ssrcs.empty()) { |
| LOG(LS_ERROR) << "No SSRCs in stream parameters."; |
| return false; |
| } |
| |
| uint32 ssrc = sp.first_ssrc(); |
| assert(ssrc != 0); |
| // TODO(pbos): Make sure none of sp.ssrcs are used, not just the identifying |
| // ssrc. |
| if (send_streams_.find(ssrc) != send_streams_.end()) { |
| LOG(LS_ERROR) << "Send stream with ssrc '" << ssrc << "' already exists."; |
| return false; |
| } |
| |
| webrtc::VideoSendStream::Config config = call_->GetDefaultSendConfig(); |
| |
| if (!ConfigureSendSsrcs(&config, sp)) { |
| return false; |
| } |
| |
| VideoCodecSettings codec_settings; |
| if (!send_codec_.Get(&codec_settings)) { |
| // TODO(pbos): Set up a temporary fake encoder for VideoSendStream instead |
| // of setting default codecs not to break CreateEncoderSettings. |
| SetSendCodecs(DefaultVideoCodecs()); |
| assert(send_codec_.IsSet()); |
| send_codec_.Get(&codec_settings); |
| // This is only to bring up defaults to make VideoSendStream setup easier |
| // and avoid complexity. We still don't want to allow sending with the |
| // default codec. |
| send_codec_.Clear(); |
| } |
| |
| // CreateEncoderSettings will allocate a suitable VideoEncoder instance |
| // matching current settings. |
| if (!encoder_factory_->CreateEncoderSettings(&config.encoder_settings, |
| options_, |
| codec_settings.codec, |
| config.rtp.ssrcs.size())) { |
| LOG(LS_ERROR) << "Failed to create suitable encoder settings."; |
| return false; |
| } |
| |
| config.rtp.c_name = sp.cname; |
| config.rtp.fec = codec_settings.fec; |
| if (!config.rtp.rtx.ssrcs.empty()) { |
| config.rtp.rtx.payload_type = codec_settings.rtx_payload_type; |
| } |
| |
| config.rtp.nack.rtp_history_ms = kNackHistoryMs; |
| config.rtp.max_packet_size = kVideoMtu; |
| |
| WebRtcVideoSendStream* stream = |
| new WebRtcVideoSendStream(call_.get(), config, encoder_factory_); |
| send_streams_[ssrc] = stream; |
| |
| if (rtcp_receiver_report_ssrc_ == kDefaultRtcpReceiverReportSsrc) { |
| rtcp_receiver_report_ssrc_ = ssrc; |
| } |
| if (default_send_ssrc_ == 0) { |
| default_send_ssrc_ = ssrc; |
| } |
| if (sending_) { |
| stream->Start(); |
| } |
| |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::RemoveSendStream(uint32 ssrc) { |
| LOG(LS_INFO) << "RemoveSendStream: " << ssrc; |
| |
| if (ssrc == 0) { |
| if (default_send_ssrc_ == 0) { |
| LOG(LS_ERROR) << "No default send stream active."; |
| return false; |
| } |
| |
| LOG(LS_VERBOSE) << "Removing default stream: " << default_send_ssrc_; |
| ssrc = default_send_ssrc_; |
| } |
| |
| std::map<uint32, WebRtcVideoSendStream*>::iterator it = |
| send_streams_.find(ssrc); |
| if (it == send_streams_.end()) { |
| return false; |
| } |
| |
| delete it->second; |
| send_streams_.erase(it); |
| |
| if (ssrc == default_send_ssrc_) { |
| default_send_ssrc_ = 0; |
| } |
| |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::AddRecvStream(const StreamParams& sp) { |
| LOG(LS_INFO) << "AddRecvStream: " << sp.ToString(); |
| assert(sp.ssrcs.size() > 0); |
| |
| uint32 ssrc = sp.first_ssrc(); |
| assert(ssrc != 0); // TODO(pbos): Is this ever valid? |
| if (default_recv_ssrc_ == 0) { |
| default_recv_ssrc_ = ssrc; |
| } |
| |
| // TODO(pbos): Check if any of the SSRCs overlap. |
| if (receive_streams_.find(ssrc) != receive_streams_.end()) { |
| LOG(LS_ERROR) << "Receive stream for SSRC " << ssrc << "already exists."; |
| return false; |
| } |
| |
| webrtc::VideoReceiveStream::Config config = call_->GetDefaultReceiveConfig(); |
| config.rtp.remote_ssrc = ssrc; |
| config.rtp.local_ssrc = rtcp_receiver_report_ssrc_; |
| uint32 rtx_ssrc = 0; |
| if (sp.GetFidSsrc(ssrc, &rtx_ssrc)) { |
| // TODO(pbos): Right now, VideoReceiveStream accepts any rtx payload, this |
| // should use the actual codec payloads that may be received. |
| // (for each receive payload, set rtx[payload].ssrc = rtx_ssrc. |
| config.rtp.rtx[0].ssrc = rtx_ssrc; |
| } |
| |
| config.rtp.nack.rtp_history_ms = kNackHistoryMs; |
| config.rtp.remb = true; |
| // TODO(pbos): This protection is against setting the same local ssrc as |
| // remote which is not permitted by the lower-level API. RTCP requires a |
| // corresponding sender SSRC. Figure out what to do when we don't have |
| // (receive-only) or know a good local SSRC. |
| if (config.rtp.remote_ssrc == config.rtp.local_ssrc) { |
| if (config.rtp.local_ssrc != kDefaultRtcpReceiverReportSsrc) { |
| config.rtp.local_ssrc = kDefaultRtcpReceiverReportSsrc; |
| } else { |
| config.rtp.local_ssrc = kDefaultRtcpReceiverReportSsrc + 1; |
| } |
| } |
| bool default_renderer_used = false; |
| for (std::map<uint32, WebRtcVideoRenderer*>::iterator it = renderers_.begin(); |
| it != renderers_.end(); |
| ++it) { |
| if (it->second->GetRenderer() == default_renderer_) { |
| default_renderer_used = true; |
| break; |
| } |
| } |
| |
| assert(renderers_[ssrc] == NULL); |
| renderers_[ssrc] = new WebRtcVideoRenderer(); |
| if (!default_renderer_used) { |
| renderers_[ssrc]->SetRenderer(default_renderer_); |
| } |
| config.renderer = renderers_[ssrc]; |
| |
| { |
| // TODO(pbos): Base receive codecs off recv_codecs_ and set up using a |
| // DecoderFactory similar to send side. Pending webrtc:2854. |
| // Also set up default codecs if there's nothing in recv_codecs_. |
| webrtc::VideoCodec codec; |
| memset(&codec, 0, sizeof(codec)); |
| |
| codec.plType = kDefaultVideoCodecPref.payload_type; |
| strcpy(codec.plName, kDefaultVideoCodecPref.name); |
| codec.codecType = webrtc::kVideoCodecVP8; |
| codec.codecSpecific.VP8.resilience = webrtc::kResilientStream; |
| codec.codecSpecific.VP8.numberOfTemporalLayers = 1; |
| codec.codecSpecific.VP8.denoisingOn = true; |
| codec.codecSpecific.VP8.errorConcealmentOn = false; |
| codec.codecSpecific.VP8.automaticResizeOn = false; |
| codec.codecSpecific.VP8.frameDroppingOn = true; |
| codec.codecSpecific.VP8.keyFrameInterval = 3000; |
| // Bitrates don't matter and are ignored for the receiver. This is put in to |
| // have the current underlying implementation accept the VideoCodec. |
| codec.minBitrate = codec.startBitrate = codec.maxBitrate = 300; |
| config.codecs.push_back(codec); |
| for (size_t i = 0; i < recv_codecs_.size(); ++i) { |
| if (recv_codecs_[i].codec.id == codec.plType) { |
| config.rtp.fec = recv_codecs_[i].fec; |
| if (recv_codecs_[i].rtx_payload_type != -1 && rtx_ssrc != 0) { |
| config.rtp.rtx[codec.plType].ssrc = rtx_ssrc; |
| config.rtp.rtx[codec.plType].payload_type = |
| recv_codecs_[i].rtx_payload_type; |
| } |
| break; |
| } |
| } |
| } |
| |
| webrtc::VideoReceiveStream* receive_stream = |
| call_->CreateVideoReceiveStream(config); |
| assert(receive_stream != NULL); |
| |
| receive_streams_[ssrc] = receive_stream; |
| receive_stream->Start(); |
| |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::RemoveRecvStream(uint32 ssrc) { |
| LOG(LS_INFO) << "RemoveRecvStream: " << ssrc; |
| if (ssrc == 0) { |
| ssrc = default_recv_ssrc_; |
| } |
| |
| std::map<uint32, webrtc::VideoReceiveStream*>::iterator stream = |
| receive_streams_.find(ssrc); |
| if (stream == receive_streams_.end()) { |
| LOG(LS_ERROR) << "Stream not found for ssrc: " << ssrc; |
| return false; |
| } |
| call_->DestroyVideoReceiveStream(stream->second); |
| receive_streams_.erase(stream); |
| |
| std::map<uint32, WebRtcVideoRenderer*>::iterator renderer = |
| renderers_.find(ssrc); |
| assert(renderer != renderers_.end()); |
| delete renderer->second; |
| renderers_.erase(renderer); |
| |
| if (ssrc == default_recv_ssrc_) { |
| default_recv_ssrc_ = 0; |
| } |
| |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::SetRenderer(uint32 ssrc, VideoRenderer* renderer) { |
| LOG(LS_INFO) << "SetRenderer: ssrc:" << ssrc << " " |
| << (renderer ? "(ptr)" : "NULL"); |
| bool is_default_ssrc = false; |
| if (ssrc == 0) { |
| is_default_ssrc = true; |
| ssrc = default_recv_ssrc_; |
| default_renderer_ = renderer; |
| } |
| |
| std::map<uint32, WebRtcVideoRenderer*>::iterator it = renderers_.find(ssrc); |
| if (it == renderers_.end()) { |
| return is_default_ssrc; |
| } |
| |
| it->second->SetRenderer(renderer); |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::GetRenderer(uint32 ssrc, VideoRenderer** renderer) { |
| if (ssrc == 0) { |
| if (default_renderer_ == NULL) { |
| return false; |
| } |
| *renderer = default_renderer_; |
| return true; |
| } |
| |
| std::map<uint32, WebRtcVideoRenderer*>::iterator it = renderers_.find(ssrc); |
| if (it == renderers_.end()) { |
| return false; |
| } |
| *renderer = it->second->GetRenderer(); |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::GetStats(const StatsOptions& options, |
| VideoMediaInfo* info) { |
| // TODO(pbos): Implement. |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::SetCapturer(uint32 ssrc, VideoCapturer* capturer) { |
| LOG(LS_INFO) << "SetCapturer: " << ssrc << " -> " |
| << (capturer != NULL ? "(capturer)" : "NULL"); |
| assert(ssrc != 0); |
| if (send_streams_.find(ssrc) == send_streams_.end()) { |
| LOG(LS_ERROR) << "No sending stream on ssrc " << ssrc; |
| return false; |
| } |
| return send_streams_[ssrc]->SetCapturer(capturer); |
| } |
| |
| bool WebRtcVideoChannel2::SendIntraFrame() { |
| // TODO(pbos): Implement. |
| LOG(LS_VERBOSE) << "SendIntraFrame()."; |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::RequestIntraFrame() { |
| // TODO(pbos): Implement. |
| LOG(LS_VERBOSE) << "SendIntraFrame()."; |
| return true; |
| } |
| |
| void WebRtcVideoChannel2::OnPacketReceived( |
| talk_base::Buffer* packet, |
| const talk_base::PacketTime& packet_time) { |
| const webrtc::PacketReceiver::DeliveryStatus delivery_result = |
| call_->Receiver()->DeliverPacket( |
| reinterpret_cast<const uint8_t*>(packet->data()), packet->length()); |
| switch (delivery_result) { |
| case webrtc::PacketReceiver::DELIVERY_OK: |
| return; |
| case webrtc::PacketReceiver::DELIVERY_PACKET_ERROR: |
| return; |
| case webrtc::PacketReceiver::DELIVERY_UNKNOWN_SSRC: |
| break; |
| } |
| |
| uint32 ssrc = 0; |
| if (default_recv_ssrc_ != 0) { // Already one default stream. |
| LOG(LS_WARNING) << "Unknown SSRC, but default receive stream already set."; |
| return; |
| } |
| |
| if (!GetRtpSsrc(packet->data(), packet->length(), &ssrc)) { |
| return; |
| } |
| |
| StreamParams sp; |
| sp.ssrcs.push_back(ssrc); |
| LOG(LS_INFO) << "Creating default receive stream for SSRC=" << ssrc << "."; |
| AddRecvStream(sp); |
| |
| if (call_->Receiver()->DeliverPacket( |
| reinterpret_cast<const uint8_t*>(packet->data()), packet->length()) != |
| webrtc::PacketReceiver::DELIVERY_OK) { |
| LOG(LS_WARNING) << "Failed to deliver RTP packet after creating default " |
| "receiver."; |
| return; |
| } |
| } |
| |
| void WebRtcVideoChannel2::OnRtcpReceived( |
| talk_base::Buffer* packet, |
| const talk_base::PacketTime& packet_time) { |
| if (call_->Receiver()->DeliverPacket( |
| reinterpret_cast<const uint8_t*>(packet->data()), packet->length()) != |
| webrtc::PacketReceiver::DELIVERY_OK) { |
| LOG(LS_WARNING) << "Failed to deliver RTCP packet."; |
| } |
| } |
| |
| void WebRtcVideoChannel2::OnReadyToSend(bool ready) { |
| LOG(LS_VERBOSE) << "OnReadySend: " << (ready ? "Ready." : "Not ready."); |
| } |
| |
| bool WebRtcVideoChannel2::MuteStream(uint32 ssrc, bool mute) { |
| LOG(LS_VERBOSE) << "MuteStream: " << ssrc << " -> " |
| << (mute ? "mute" : "unmute"); |
| assert(ssrc != 0); |
| if (send_streams_.find(ssrc) == send_streams_.end()) { |
| LOG(LS_ERROR) << "No sending stream on ssrc " << ssrc; |
| return false; |
| } |
| return send_streams_[ssrc]->MuteStream(mute); |
| } |
| |
| bool WebRtcVideoChannel2::SetRecvRtpHeaderExtensions( |
| const std::vector<RtpHeaderExtension>& extensions) { |
| // TODO(pbos): Implement. |
| LOG(LS_VERBOSE) << "SetRecvRtpHeaderExtensions()"; |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::SetSendRtpHeaderExtensions( |
| const std::vector<RtpHeaderExtension>& extensions) { |
| // TODO(pbos): Implement. |
| LOG(LS_VERBOSE) << "SetSendRtpHeaderExtensions()"; |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::SetStartSendBandwidth(int bps) { |
| // TODO(pbos): Implement. |
| LOG(LS_VERBOSE) << "SetStartSendBandwidth: " << bps; |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::SetMaxSendBandwidth(int bps) { |
| // TODO(pbos): Implement. |
| LOG(LS_VERBOSE) << "SetMaxSendBandwidth: " << bps; |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::SetOptions(const VideoOptions& options) { |
| LOG(LS_VERBOSE) << "SetOptions: " << options.ToString(); |
| options_.SetAll(options); |
| return true; |
| } |
| |
| void WebRtcVideoChannel2::SetInterface(NetworkInterface* iface) { |
| MediaChannel::SetInterface(iface); |
| // Set the RTP recv/send buffer to a bigger size |
| MediaChannel::SetOption(NetworkInterface::ST_RTP, |
| talk_base::Socket::OPT_RCVBUF, |
| kVideoRtpBufferSize); |
| |
| // TODO(sriniv): Remove or re-enable this. |
| // As part of b/8030474, send-buffer is size now controlled through |
| // portallocator flags. |
| // network_interface_->SetOption(NetworkInterface::ST_RTP, |
| // talk_base::Socket::OPT_SNDBUF, |
| // kVideoRtpBufferSize); |
| } |
| |
| void WebRtcVideoChannel2::UpdateAspectRatio(int ratio_w, int ratio_h) { |
| // TODO(pbos): Implement. |
| } |
| |
| void WebRtcVideoChannel2::OnMessage(talk_base::Message* msg) { |
| // Ignored. |
| } |
| |
| bool WebRtcVideoChannel2::SendRtp(const uint8_t* data, size_t len) { |
| talk_base::Buffer packet(data, len, kMaxRtpPacketLen); |
| return MediaChannel::SendPacket(&packet); |
| } |
| |
| bool WebRtcVideoChannel2::SendRtcp(const uint8_t* data, size_t len) { |
| talk_base::Buffer packet(data, len, kMaxRtpPacketLen); |
| return MediaChannel::SendRtcp(&packet); |
| } |
| |
| void WebRtcVideoChannel2::StartAllSendStreams() { |
| for (std::map<uint32, WebRtcVideoSendStream*>::iterator it = |
| send_streams_.begin(); |
| it != send_streams_.end(); |
| ++it) { |
| it->second->Start(); |
| } |
| } |
| |
| void WebRtcVideoChannel2::StopAllSendStreams() { |
| for (std::map<uint32, WebRtcVideoSendStream*>::iterator it = |
| send_streams_.begin(); |
| it != send_streams_.end(); |
| ++it) { |
| it->second->Stop(); |
| } |
| } |
| |
| void WebRtcVideoChannel2::SetCodecForAllSendStreams( |
| const WebRtcVideoChannel2::VideoCodecSettings& codec) { |
| for (std::map<uint32, WebRtcVideoSendStream*>::iterator it = |
| send_streams_.begin(); |
| it != send_streams_.end(); |
| ++it) { |
| assert(it->second != NULL); |
| it->second->SetCodec(options_, codec); |
| } |
| } |
| |
| WebRtcVideoChannel2::WebRtcVideoSendStream::WebRtcVideoSendStream( |
| webrtc::Call* call, |
| const webrtc::VideoSendStream::Config& config, |
| WebRtcVideoEncoderFactory2* encoder_factory) |
| : call_(call), |
| config_(config), |
| encoder_factory_(encoder_factory), |
| capturer_(NULL), |
| stream_(NULL), |
| sending_(false), |
| muted_(false), |
| format_(static_cast<int>(config.encoder_settings.streams.back().height), |
| static_cast<int>(config.encoder_settings.streams.back().width), |
| VideoFormat::FpsToInterval( |
| config.encoder_settings.streams.back().max_framerate), |
| FOURCC_I420) { |
| RecreateWebRtcStream(); |
| } |
| |
| WebRtcVideoChannel2::WebRtcVideoSendStream::~WebRtcVideoSendStream() { |
| DisconnectCapturer(); |
| call_->DestroyVideoSendStream(stream_); |
| delete config_.encoder_settings.encoder; |
| } |
| |
| static void SetWebRtcFrameToBlack(webrtc::I420VideoFrame* video_frame) { |
| assert(video_frame != NULL); |
| memset(video_frame->buffer(webrtc::kYPlane), |
| 16, |
| video_frame->allocated_size(webrtc::kYPlane)); |
| memset(video_frame->buffer(webrtc::kUPlane), |
| 128, |
| video_frame->allocated_size(webrtc::kUPlane)); |
| memset(video_frame->buffer(webrtc::kVPlane), |
| 128, |
| video_frame->allocated_size(webrtc::kVPlane)); |
| } |
| |
| static void CreateBlackFrame(webrtc::I420VideoFrame* video_frame, |
| int width, |
| int height) { |
| video_frame->CreateEmptyFrame( |
| width, height, width, (width + 1) / 2, (width + 1) / 2); |
| SetWebRtcFrameToBlack(video_frame); |
| } |
| |
| static void ConvertToI420VideoFrame(const VideoFrame& frame, |
| webrtc::I420VideoFrame* i420_frame) { |
| i420_frame->CreateFrame( |
| static_cast<int>(frame.GetYPitch() * frame.GetHeight()), |
| frame.GetYPlane(), |
| static_cast<int>(frame.GetUPitch() * ((frame.GetHeight() + 1) / 2)), |
| frame.GetUPlane(), |
| static_cast<int>(frame.GetVPitch() * ((frame.GetHeight() + 1) / 2)), |
| frame.GetVPlane(), |
| static_cast<int>(frame.GetWidth()), |
| static_cast<int>(frame.GetHeight()), |
| static_cast<int>(frame.GetYPitch()), |
| static_cast<int>(frame.GetUPitch()), |
| static_cast<int>(frame.GetVPitch())); |
| } |
| |
| void WebRtcVideoChannel2::WebRtcVideoSendStream::InputFrame( |
| VideoCapturer* capturer, |
| const VideoFrame* frame) { |
| LOG(LS_VERBOSE) << "InputFrame: " << frame->GetWidth() << "x" |
| << frame->GetHeight(); |
| bool is_screencast = capturer->IsScreencast(); |
| // Lock before copying, can be called concurrently when swapping input source. |
| talk_base::CritScope frame_cs(&frame_lock_); |
| if (!muted_) { |
| ConvertToI420VideoFrame(*frame, &video_frame_); |
| } else { |
| // Create a tiny black frame to transmit instead. |
| CreateBlackFrame(&video_frame_, 1, 1); |
| is_screencast = false; |
| } |
| talk_base::CritScope cs(&lock_); |
| if (format_.width == 0) { // Dropping frames. |
| assert(format_.height == 0); |
| LOG(LS_VERBOSE) << "VideoFormat 0x0 set, Dropping frame."; |
| return; |
| } |
| // Reconfigure codec if necessary. |
| if (is_screencast) { |
| SetDimensions(video_frame_.width(), video_frame_.height()); |
| } |
| LOG(LS_VERBOSE) << "SwapFrame: " << video_frame_.width() << "x" |
| << video_frame_.height() << " -> (codec) " |
| << config_.encoder_settings.streams.back().width << "x" |
| << config_.encoder_settings.streams.back().height; |
| stream_->Input()->SwapFrame(&video_frame_); |
| } |
| |
| bool WebRtcVideoChannel2::WebRtcVideoSendStream::SetCapturer( |
| VideoCapturer* capturer) { |
| if (!DisconnectCapturer() && capturer == NULL) { |
| return false; |
| } |
| |
| { |
| talk_base::CritScope cs(&lock_); |
| |
| if (capturer == NULL) { |
| LOG(LS_VERBOSE) << "Disabling capturer, sending black frame."; |
| webrtc::I420VideoFrame black_frame; |
| |
| int width = format_.width; |
| int height = format_.height; |
| int half_width = (width + 1) / 2; |
| black_frame.CreateEmptyFrame( |
| width, height, width, half_width, half_width); |
| SetWebRtcFrameToBlack(&black_frame); |
| SetDimensions(width, height); |
| stream_->Input()->SwapFrame(&black_frame); |
| |
| capturer_ = NULL; |
| return true; |
| } |
| |
| capturer_ = capturer; |
| } |
| // Lock cannot be held while connecting the capturer to prevent lock-order |
| // violations. |
| capturer->SignalVideoFrame.connect(this, &WebRtcVideoSendStream::InputFrame); |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::WebRtcVideoSendStream::SetVideoFormat( |
| const VideoFormat& format) { |
| if ((format.width == 0 || format.height == 0) && |
| format.width != format.height) { |
| LOG(LS_ERROR) << "Can't set VideoFormat, width or height is zero (but not " |
| "both, 0x0 drops frames)."; |
| return false; |
| } |
| |
| talk_base::CritScope cs(&lock_); |
| if (format.width == 0 && format.height == 0) { |
| LOG(LS_INFO) |
| << "0x0 resolution selected. Captured frames will be dropped for ssrc: " |
| << config_.rtp.ssrcs[0] << "."; |
| } else { |
| // TODO(pbos): Fix me, this only affects the last stream! |
| config_.encoder_settings.streams.back().max_framerate = |
| VideoFormat::IntervalToFps(format.interval); |
| SetDimensions(format.width, format.height); |
| } |
| |
| format_ = format; |
| return true; |
| } |
| |
| bool WebRtcVideoChannel2::WebRtcVideoSendStream::MuteStream(bool mute) { |
| talk_base::CritScope cs(&lock_); |
| bool was_muted = muted_; |
| muted_ = mute; |
| return was_muted != mute; |
| } |
| |
| bool WebRtcVideoChannel2::WebRtcVideoSendStream::DisconnectCapturer() { |
| talk_base::CritScope cs(&lock_); |
| if (capturer_ == NULL) { |
| return false; |
| } |
| capturer_->SignalVideoFrame.disconnect(this); |
| capturer_ = NULL; |
| return true; |
| } |
| |
| void WebRtcVideoChannel2::WebRtcVideoSendStream::SetCodec( |
| const VideoOptions& options, |
| const VideoCodecSettings& codec) { |
| talk_base::CritScope cs(&lock_); |
| webrtc::VideoEncoder* old_encoder = config_.encoder_settings.encoder; |
| if (!encoder_factory_->CreateEncoderSettings( |
| &config_.encoder_settings, |
| options, |
| codec.codec, |
| config_.encoder_settings.streams.size())) { |
| LOG(LS_ERROR) << "Could not create encoder settings for: '" |
| << codec.codec.name |
| << "'. This is most definitely a bug as SetCodec should only " |
| "receive codecs which the encoder factory claims to " |
| "support."; |
| return; |
| } |
| format_ = VideoFormat(codec.codec.width, |
| codec.codec.height, |
| VideoFormat::FpsToInterval(30), |
| FOURCC_I420); |
| config_.rtp.fec = codec.fec; |
| // TODO(pbos): Should changing RTX payload type be allowed? |
| RecreateWebRtcStream(); |
| delete old_encoder; |
| } |
| |
| void WebRtcVideoChannel2::WebRtcVideoSendStream::SetDimensions(int width, |
| int height) { |
| assert(!config_.encoder_settings.streams.empty()); |
| LOG(LS_VERBOSE) << "SetDimensions: " << width << "x" << height; |
| if (config_.encoder_settings.streams.back().width == width && |
| config_.encoder_settings.streams.back().height == height) { |
| return; |
| } |
| |
| // TODO(pbos): Fix me, this only affects the last stream! |
| config_.encoder_settings.streams.back().width = width; |
| config_.encoder_settings.streams.back().height = height; |
| // TODO(pbos): Last parameter shouldn't always be NULL? |
| if (!stream_->ReconfigureVideoEncoder(config_.encoder_settings.streams, |
| NULL)) { |
| LOG(LS_WARNING) << "Failed to reconfigure video encoder for dimensions: " |
| << width << "x" << height; |
| return; |
| } |
| } |
| |
| void WebRtcVideoChannel2::WebRtcVideoSendStream::Start() { |
| talk_base::CritScope cs(&lock_); |
| stream_->Start(); |
| sending_ = true; |
| } |
| |
| void WebRtcVideoChannel2::WebRtcVideoSendStream::Stop() { |
| talk_base::CritScope cs(&lock_); |
| stream_->Stop(); |
| sending_ = false; |
| } |
| |
| void WebRtcVideoChannel2::WebRtcVideoSendStream::RecreateWebRtcStream() { |
| if (stream_ != NULL) { |
| call_->DestroyVideoSendStream(stream_); |
| } |
| stream_ = call_->CreateVideoSendStream(config_); |
| if (sending_) { |
| stream_->Start(); |
| } |
| } |
| |
| WebRtcVideoChannel2::VideoCodecSettings::VideoCodecSettings() |
| : rtx_payload_type(-1) {} |
| |
| std::vector<WebRtcVideoChannel2::VideoCodecSettings> |
| WebRtcVideoChannel2::MapCodecs(const std::vector<VideoCodec>& codecs) { |
| assert(!codecs.empty()); |
| |
| std::vector<VideoCodecSettings> video_codecs; |
| std::map<int, bool> payload_used; |
| std::map<int, int> rtx_mapping; // video payload type -> rtx payload type. |
| |
| webrtc::FecConfig fec_settings; |
| |
| for (size_t i = 0; i < codecs.size(); ++i) { |
| const VideoCodec& in_codec = codecs[i]; |
| int payload_type = in_codec.id; |
| |
| if (payload_used[payload_type]) { |
| LOG(LS_ERROR) << "Payload type already registered: " |
| << in_codec.ToString(); |
| return std::vector<VideoCodecSettings>(); |
| } |
| payload_used[payload_type] = true; |
| |
| switch (in_codec.GetCodecType()) { |
| case VideoCodec::CODEC_RED: { |
| // RED payload type, should not have duplicates. |
| assert(fec_settings.red_payload_type == -1); |
| fec_settings.red_payload_type = in_codec.id; |
| continue; |
| } |
| |
| case VideoCodec::CODEC_ULPFEC: { |
| // ULPFEC payload type, should not have duplicates. |
| assert(fec_settings.ulpfec_payload_type == -1); |
| fec_settings.ulpfec_payload_type = in_codec.id; |
| continue; |
| } |
| |
| case VideoCodec::CODEC_RTX: { |
| int associated_payload_type; |
| if (!in_codec.GetParam(kCodecParamAssociatedPayloadType, |
| &associated_payload_type)) { |
| LOG(LS_ERROR) << "RTX codec without associated payload type: " |
| << in_codec.ToString(); |
| return std::vector<VideoCodecSettings>(); |
| } |
| rtx_mapping[associated_payload_type] = in_codec.id; |
| continue; |
| } |
| |
| case VideoCodec::CODEC_VIDEO: |
| break; |
| } |
| |
| video_codecs.push_back(VideoCodecSettings()); |
| video_codecs.back().codec = in_codec; |
| } |
| |
| // One of these codecs should have been a video codec. Only having FEC |
| // parameters into this code is a logic error. |
| assert(!video_codecs.empty()); |
| |
| // TODO(pbos): Write tests that figure out that I have not verified that RTX |
| // codecs aren't mapped to bogus payloads. |
| for (size_t i = 0; i < video_codecs.size(); ++i) { |
| video_codecs[i].fec = fec_settings; |
| if (rtx_mapping[video_codecs[i].codec.id] != 0) { |
| video_codecs[i].rtx_payload_type = rtx_mapping[video_codecs[i].codec.id]; |
| } |
| } |
| |
| return video_codecs; |
| } |
| |
| std::vector<WebRtcVideoChannel2::VideoCodecSettings> |
| WebRtcVideoChannel2::FilterSupportedCodecs( |
| const std::vector<WebRtcVideoChannel2::VideoCodecSettings>& mapped_codecs) { |
| std::vector<VideoCodecSettings> supported_codecs; |
| for (size_t i = 0; i < mapped_codecs.size(); ++i) { |
| if (encoder_factory_->SupportsCodec(mapped_codecs[i].codec)) { |
| supported_codecs.push_back(mapped_codecs[i]); |
| } |
| } |
| return supported_codecs; |
| } |
| |
| } // namespace cricket |
| |
| #endif // HAVE_WEBRTC_VIDEO |