Reland of H.264 packetization mode 0 (try 3)

webrtc/modules/video_coding/codecs/h264/h264_encoder_impl_unittest.cc

+/*
+ *  Copyright (c) 2015 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.
+ *
+ */
+
+#include "webrtc/modules/video_coding/codecs/h264/h264_encoder_impl.h"
+
+#include "webrtc/test/gtest.h"
+
+namespace webrtc {
+
+namespace {
+
+const int kMaxPayloadSize = 1024;
+const int kNumCores = 1;
+
+void SetDefaultSettings(VideoCodec* codec_settings) {
+  codec_settings->codecType = kVideoCodecH264;
+  codec_settings->maxFramerate = 60;
+  codec_settings->width = 640;
+  codec_settings->height = 480;
+  // If frame dropping is false, we get a warning that bitrate can't
+  // be controlled for RC_QUALITY_MODE; RC_BITRATE_MODE and RC_TIMESTAMP_MODE
+  codec_settings->H264()->frameDroppingOn = true;
+  codec_settings->targetBitrate = 2000;
+  codec_settings->maxBitrate = 4000;
+}
+
+TEST(H264EncoderImplTest, CanInitializeWithDefaultParameters) {
+  H264EncoderImpl encoder(cricket::VideoCodec("H264"));
+  VideoCodec codec_settings;
+  SetDefaultSettings(&codec_settings);
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
+            encoder.InitEncode(&codec_settings, kNumCores, kMaxPayloadSize));
+  EXPECT_EQ(H264PacketizationMode::NonInterleaved,
+            encoder.PacketizationModeForTesting());
+}
+
+TEST(H264EncoderImplTest, CanInitializeWithNonInterleavedModeExplicitly) {
+  cricket::VideoCodec codec("H264");
+  codec.SetParam(cricket::kH264FmtpPacketizationMode, "1");
+  H264EncoderImpl encoder(codec);
+  VideoCodec codec_settings;
+  SetDefaultSettings(&codec_settings);
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
+            encoder.InitEncode(&codec_settings, kNumCores, kMaxPayloadSize));
+  EXPECT_EQ(H264PacketizationMode::NonInterleaved,
+            encoder.PacketizationModeForTesting());
+}
+
+TEST(H264EncoderImplTest, CanInitializeWithSingleNalUnitModeExplicitly) {
+  cricket::VideoCodec codec("H264");
+  codec.SetParam(cricket::kH264FmtpPacketizationMode, "0");
+  H264EncoderImpl encoder(codec);
+  VideoCodec codec_settings;
+  SetDefaultSettings(&codec_settings);
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
+            encoder.InitEncode(&codec_settings, kNumCores, kMaxPayloadSize));
+  EXPECT_EQ(H264PacketizationMode::SingleNalUnit,
+            encoder.PacketizationModeForTesting());
+}
+
+TEST(H264EncoderImplTest, CanInitializeWithRemovedParameter) {
+  cricket::VideoCodec codec("H264");
+  codec.RemoveParam(cricket::kH264FmtpPacketizationMode);
+  H264EncoderImpl encoder(codec);
+  VideoCodec codec_settings;
+  SetDefaultSettings(&codec_settings);
+  EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK,
+            encoder.InitEncode(&codec_settings, kNumCores, kMaxPayloadSize));
+  EXPECT_EQ(H264PacketizationMode::SingleNalUnit,
+            encoder.PacketizationModeForTesting());
+}
+
+}  // anonymous namespace
+
+}  // namespace webrtc