H.264 video codec support using OpenH264/FFmpeg

webrtc/video/loopback.cc

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 25 matching lines @@
 namespace webrtc {
 namespace test {
 
 static const int kAbsSendTimeExtensionId = 7;
 
 static const uint32_t kSendSsrc = 0x654321;
 static const uint32_t kSendRtxSsrc = 0x654322;
 static const uint32_t kReceiverLocalSsrc = 0x123456;
 
 static const uint8_t kRtxVideoPayloadType = 96;
+static const uint8_t kVideoPayloadTypeH264 = 120;

[stefan-webrtc, 2015/09/28 11:19:02]

126 would have been a bit less random, IMO :)

 static const uint8_t kVideoPayloadTypeVP8 = 124;
 static const uint8_t kVideoPayloadTypeVP9 = 125;
 
 Loopback::Loopback(const Config& config)
     : config_(config), clock_(Clock::GetRealTimeClock()) {
 }
 
 Loopback::~Loopback() {
 }
 
@@ skipping 35 matching lines @@
   VideoSendStream::Config send_config(&send_transport);
   send_config.rtp.ssrcs.push_back(kSendSsrc);
   send_config.rtp.rtx.ssrcs.push_back(kSendRtxSsrc);
   send_config.rtp.rtx.payload_type = kRtxVideoPayloadType;
   send_config.rtp.nack.rtp_history_ms = 1000;
   send_config.rtp.extensions.push_back(
       RtpExtension(RtpExtension::kAbsSendTime, kAbsSendTimeExtensionId));
 
   send_config.local_renderer = local_preview.get();
   rtc::scoped_ptr<VideoEncoder> encoder;
-  if (config_.codec == "VP8") {
+  int payload_type;
+  if (config_.codec == "H264") {
+    encoder.reset(VideoEncoder::Create(VideoEncoder::kH264));
+    payload_type = kVideoPayloadTypeH264;
+  } else if (config_.codec == "VP8") {
     encoder.reset(VideoEncoder::Create(VideoEncoder::kVp8));
+    payload_type = kVideoPayloadTypeVP8;
   } else if (config_.codec == "VP9") {
     encoder.reset(VideoEncoder::Create(VideoEncoder::kVp9));
+    payload_type = kVideoPayloadTypeVP9;
   } else {
     // Codec not supported.
     RTC_NOTREACHED() << "Codec not supported!";
     return;
   }
-  const int payload_type =
-      config_.codec == "VP8" ? kVideoPayloadTypeVP8 : kVideoPayloadTypeVP9;
   send_config.encoder_settings.encoder = encoder.get();
   send_config.encoder_settings.payload_name = config_.codec;
   send_config.encoder_settings.payload_type = payload_type;
 
   VideoEncoderConfig encoder_config(CreateEncoderConfig());
 
   VideoSendStream* send_stream =
       call->CreateVideoSendStream(send_config, encoder_config);
 
   rtc::scoped_ptr<test::VideoCapturer> capturer(CreateCapturer(send_stream));
@@ skipping 52 matching lines @@
   return encoder_config;
 }
 
 test::VideoCapturer* Loopback::CreateCapturer(VideoSendStream* send_stream) {
   return test::VideoCapturer::Create(send_stream->Input(), config_.width,
                                      config_.height, config_.fps, clock_);
 }
 
 }  // namespace test
 }  // namespace webrtc