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-rw-r--r--third_party/libwebrtc/rtc_tools/video_replay.cc717
1 files changed, 717 insertions, 0 deletions
diff --git a/third_party/libwebrtc/rtc_tools/video_replay.cc b/third_party/libwebrtc/rtc_tools/video_replay.cc
new file mode 100644
index 0000000000..405948d8e0
--- /dev/null
+++ b/third_party/libwebrtc/rtc_tools/video_replay.cc
@@ -0,0 +1,717 @@
+/*
+ * Copyright (c) 2014 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 <stdio.h>
+
+#include <fstream>
+#include <map>
+#include <memory>
+
+#include "absl/flags/flag.h"
+#include "absl/flags/parse.h"
+#include "api/field_trials.h"
+#include "api/media_types.h"
+#include "api/rtc_event_log/rtc_event_log.h"
+#include "api/task_queue/default_task_queue_factory.h"
+#include "api/test/video/function_video_decoder_factory.h"
+#include "api/transport/field_trial_based_config.h"
+#include "api/units/timestamp.h"
+#include "api/video/video_codec_type.h"
+#include "api/video_codecs/video_decoder.h"
+#include "call/call.h"
+#include "common_video/libyuv/include/webrtc_libyuv.h"
+#include "media/engine/internal_decoder_factory.h"
+#include "modules/rtp_rtcp/include/rtp_header_extension_map.h"
+#include "modules/rtp_rtcp/source/rtp_packet.h"
+#include "modules/rtp_rtcp/source/rtp_packet_received.h"
+#include "modules/rtp_rtcp/source/rtp_util.h"
+#include "modules/video_coding/utility/ivf_file_writer.h"
+#include "rtc_base/checks.h"
+#include "rtc_base/string_to_number.h"
+#include "rtc_base/strings/json.h"
+#include "rtc_base/time_utils.h"
+#include "system_wrappers/include/clock.h"
+#include "system_wrappers/include/sleep.h"
+#include "test/call_config_utils.h"
+#include "test/call_test.h"
+#include "test/encoder_settings.h"
+#include "test/fake_decoder.h"
+#include "test/gtest.h"
+#include "test/null_transport.h"
+#include "test/rtp_file_reader.h"
+#include "test/run_loop.h"
+#include "test/run_test.h"
+#include "test/test_video_capturer.h"
+#include "test/testsupport/frame_writer.h"
+#include "test/time_controller/simulated_time_controller.h"
+#include "test/video_renderer.h"
+
+// Flag for payload type.
+ABSL_FLAG(int,
+ media_payload_type,
+ webrtc::test::CallTest::kPayloadTypeVP8,
+ "Media payload type");
+
+// Flag for RED payload type.
+ABSL_FLAG(int,
+ red_payload_type,
+ webrtc::test::CallTest::kRedPayloadType,
+ "RED payload type");
+
+// Flag for ULPFEC payload type.
+ABSL_FLAG(int,
+ ulpfec_payload_type,
+ webrtc::test::CallTest::kUlpfecPayloadType,
+ "ULPFEC payload type");
+
+// Flag for FLEXFEC payload type.
+ABSL_FLAG(int,
+ flexfec_payload_type,
+ webrtc::test::CallTest::kFlexfecPayloadType,
+ "FLEXFEC payload type");
+
+ABSL_FLAG(int,
+ media_payload_type_rtx,
+ webrtc::test::CallTest::kSendRtxPayloadType,
+ "Media over RTX payload type");
+
+ABSL_FLAG(int,
+ red_payload_type_rtx,
+ webrtc::test::CallTest::kRtxRedPayloadType,
+ "RED over RTX payload type");
+
+// Flag for SSRC and RTX SSRC.
+ABSL_FLAG(uint32_t,
+ ssrc,
+ webrtc::test::CallTest::kVideoSendSsrcs[0],
+ "Incoming SSRC");
+ABSL_FLAG(uint32_t,
+ ssrc_rtx,
+ webrtc::test::CallTest::kSendRtxSsrcs[0],
+ "Incoming RTX SSRC");
+
+ABSL_FLAG(uint32_t,
+ ssrc_flexfec,
+ webrtc::test::CallTest::kFlexfecSendSsrc,
+ "Incoming FLEXFEC SSRC");
+
+// Flag for abs-send-time id.
+ABSL_FLAG(int, abs_send_time_id, -1, "RTP extension ID for abs-send-time");
+
+// Flag for transmission-offset id.
+ABSL_FLAG(int,
+ transmission_offset_id,
+ -1,
+ "RTP extension ID for transmission-offset");
+
+// Flag for rtpdump input file.
+ABSL_FLAG(std::string, input_file, "", "input file");
+
+ABSL_FLAG(std::string, config_file, "", "config file");
+
+// Flag for raw output files.
+ABSL_FLAG(std::string,
+ out_base,
+ "",
+ "Basename (excluding .jpg) for raw output");
+
+ABSL_FLAG(std::string,
+ decoder_bitstream_filename,
+ "",
+ "Decoder bitstream output file");
+
+ABSL_FLAG(std::string, decoder_ivf_filename, "", "Decoder ivf output file");
+
+// Flag for video codec.
+ABSL_FLAG(std::string, codec, "VP8", "Video codec");
+
+// Flags for rtp start and stop timestamp.
+ABSL_FLAG(uint32_t,
+ start_timestamp,
+ 0,
+ "RTP start timestamp, packets with smaller timestamp will be ignored "
+ "(no wraparound)");
+ABSL_FLAG(uint32_t,
+ stop_timestamp,
+ 4294967295,
+ "RTP stop timestamp, packets with larger timestamp will be ignored "
+ "(no wraparound)");
+
+// Flags for render window width and height
+ABSL_FLAG(uint32_t, render_width, 640, "Width of render window");
+ABSL_FLAG(uint32_t, render_height, 480, "Height of render window");
+
+ABSL_FLAG(
+ std::string,
+ force_fieldtrials,
+ "",
+ "Field trials control experimental feature code which can be forced. "
+ "E.g. running with --force_fieldtrials=WebRTC-FooFeature/Enabled/"
+ " will assign the group Enable to field trial WebRTC-FooFeature. Multiple "
+ "trials are separated by \"/\"");
+
+ABSL_FLAG(bool, simulated_time, false, "Run in simulated time");
+
+ABSL_FLAG(bool, disable_preview, false, "Disable decoded video preview.");
+
+ABSL_FLAG(bool, disable_decoding, false, "Disable video decoding.");
+
+ABSL_FLAG(int,
+ extend_run_time_duration,
+ 0,
+ "Extends the run time of the receiving client after the last RTP "
+ "packet has been delivered. Typically useful to let the last few "
+ "frames be decoded and rendered. Duration given in seconds.");
+
+namespace {
+bool ValidatePayloadType(int32_t payload_type) {
+ return payload_type > 0 && payload_type <= 127;
+}
+
+bool ValidateOptionalPayloadType(int32_t payload_type) {
+ return payload_type == -1 || ValidatePayloadType(payload_type);
+}
+
+bool ValidateRtpHeaderExtensionId(int32_t extension_id) {
+ return extension_id >= -1 && extension_id < 15;
+}
+
+bool ValidateInputFilenameNotEmpty(const std::string& string) {
+ return !string.empty();
+}
+} // namespace
+
+namespace webrtc {
+namespace {
+
+const uint32_t kReceiverLocalSsrc = 0x123456;
+
+class NullRenderer : public rtc::VideoSinkInterface<VideoFrame> {
+ public:
+ void OnFrame(const VideoFrame& frame) override {}
+};
+
+class FileRenderPassthrough : public rtc::VideoSinkInterface<VideoFrame> {
+ public:
+ FileRenderPassthrough(const std::string& basename,
+ rtc::VideoSinkInterface<VideoFrame>* renderer)
+ : basename_(basename), renderer_(renderer), file_(nullptr), count_(0) {}
+
+ ~FileRenderPassthrough() override {
+ if (file_)
+ fclose(file_);
+ }
+
+ private:
+ void OnFrame(const VideoFrame& video_frame) override {
+ if (renderer_)
+ renderer_->OnFrame(video_frame);
+
+ if (basename_.empty())
+ return;
+
+ std::stringstream filename;
+ filename << basename_ << count_++ << "_" << video_frame.timestamp()
+ << ".jpg";
+
+ test::JpegFrameWriter frame_writer(filename.str());
+ RTC_CHECK(frame_writer.WriteFrame(video_frame, 100));
+ }
+
+ const std::string basename_;
+ rtc::VideoSinkInterface<VideoFrame>* const renderer_;
+ FILE* file_;
+ size_t count_;
+};
+
+class DecoderBitstreamFileWriter : public test::FakeDecoder {
+ public:
+ explicit DecoderBitstreamFileWriter(const char* filename)
+ : file_(fopen(filename, "wb")) {
+ RTC_DCHECK(file_);
+ }
+ ~DecoderBitstreamFileWriter() override { fclose(file_); }
+
+ int32_t Decode(const EncodedImage& encoded_frame,
+ bool /* missing_frames */,
+ int64_t /* render_time_ms */) override {
+ if (fwrite(encoded_frame.data(), 1, encoded_frame.size(), file_) <
+ encoded_frame.size()) {
+ RTC_LOG_ERR(LS_ERROR) << "fwrite of encoded frame failed.";
+ return WEBRTC_VIDEO_CODEC_ERROR;
+ }
+ return WEBRTC_VIDEO_CODEC_OK;
+ }
+
+ private:
+ FILE* file_;
+};
+
+class DecoderIvfFileWriter : public test::FakeDecoder {
+ public:
+ explicit DecoderIvfFileWriter(const char* filename, const std::string& codec)
+ : file_writer_(
+ IvfFileWriter::Wrap(FileWrapper::OpenWriteOnly(filename), 0)) {
+ RTC_DCHECK(file_writer_.get());
+ if (codec == "VP8") {
+ video_codec_type_ = VideoCodecType::kVideoCodecVP8;
+ } else if (codec == "VP9") {
+ video_codec_type_ = VideoCodecType::kVideoCodecVP9;
+ } else if (codec == "H264") {
+ video_codec_type_ = VideoCodecType::kVideoCodecH264;
+ } else if (codec == "AV1") {
+ video_codec_type_ = VideoCodecType::kVideoCodecAV1;
+ } else {
+ RTC_LOG(LS_ERROR) << "Unsupported video codec " << codec;
+ RTC_DCHECK_NOTREACHED();
+ }
+ }
+ ~DecoderIvfFileWriter() override { file_writer_->Close(); }
+
+ int32_t Decode(const EncodedImage& encoded_frame,
+ bool /* missing_frames */,
+ int64_t render_time_ms) override {
+ if (!file_writer_->WriteFrame(encoded_frame, video_codec_type_)) {
+ return WEBRTC_VIDEO_CODEC_ERROR;
+ }
+ return WEBRTC_VIDEO_CODEC_OK;
+ }
+
+ private:
+ std::unique_ptr<IvfFileWriter> file_writer_;
+ VideoCodecType video_codec_type_;
+};
+
+// Holds all the shared memory structures required for a receive stream. This
+// structure is used to prevent members being deallocated before the replay
+// has been finished.
+struct StreamState {
+ test::NullTransport transport;
+ std::vector<std::unique_ptr<rtc::VideoSinkInterface<VideoFrame>>> sinks;
+ std::vector<VideoReceiveStreamInterface*> receive_streams;
+ std::vector<FlexfecReceiveStream*> flexfec_streams;
+ std::unique_ptr<VideoDecoderFactory> decoder_factory;
+};
+
+// Loads multiple configurations from the provided configuration file.
+std::unique_ptr<StreamState> ConfigureFromFile(const std::string& config_path,
+ Call* call) {
+ auto stream_state = std::make_unique<StreamState>();
+ // Parse the configuration file.
+ std::ifstream config_file(config_path);
+ std::stringstream raw_json_buffer;
+ raw_json_buffer << config_file.rdbuf();
+ std::string raw_json = raw_json_buffer.str();
+ Json::CharReaderBuilder builder;
+ Json::Value json_configs;
+ std::string error_message;
+ std::unique_ptr<Json::CharReader> json_reader(builder.newCharReader());
+ if (!json_reader->parse(raw_json.data(), raw_json.data() + raw_json.size(),
+ &json_configs, &error_message)) {
+ fprintf(stderr, "Error parsing JSON config\n");
+ fprintf(stderr, "%s\n", error_message.c_str());
+ return nullptr;
+ }
+
+ if (absl::GetFlag(FLAGS_disable_decoding)) {
+ stream_state->decoder_factory =
+ std::make_unique<test::FunctionVideoDecoderFactory>(
+ []() { return std::make_unique<test::FakeDecoder>(); });
+ } else {
+ stream_state->decoder_factory = std::make_unique<InternalDecoderFactory>();
+ }
+ size_t config_count = 0;
+ for (const auto& json : json_configs) {
+ // Create the configuration and parse the JSON into the config.
+ auto receive_config =
+ ParseVideoReceiveStreamJsonConfig(&(stream_state->transport), json);
+ // Instantiate the underlying decoder.
+ for (auto& decoder : receive_config.decoders) {
+ decoder = test::CreateMatchingDecoder(decoder.payload_type,
+ decoder.video_format.name);
+ }
+ // Create a window for this config.
+ std::stringstream window_title;
+ window_title << "Playback Video (" << config_count++ << ")";
+ if (absl::GetFlag(FLAGS_disable_preview)) {
+ stream_state->sinks.emplace_back(std::make_unique<NullRenderer>());
+ } else {
+ stream_state->sinks.emplace_back(test::VideoRenderer::Create(
+ window_title.str().c_str(), absl::GetFlag(FLAGS_render_width),
+ absl::GetFlag(FLAGS_render_height)));
+ }
+ // Create a receive stream for this config.
+ receive_config.renderer = stream_state->sinks.back().get();
+ receive_config.decoder_factory = stream_state->decoder_factory.get();
+ stream_state->receive_streams.emplace_back(
+ call->CreateVideoReceiveStream(std::move(receive_config)));
+ }
+ return stream_state;
+}
+
+// Loads the base configuration from flags passed in on the commandline.
+std::unique_ptr<StreamState> ConfigureFromFlags(
+ const std::string& rtp_dump_path,
+ Call* call) {
+ auto stream_state = std::make_unique<StreamState>();
+ // Create the video renderers. We must add both to the stream state to keep
+ // them from deallocating.
+ std::stringstream window_title;
+ window_title << "Playback Video (" << rtp_dump_path << ")";
+ std::unique_ptr<rtc::VideoSinkInterface<VideoFrame>> playback_video;
+ if (absl::GetFlag(FLAGS_disable_preview)) {
+ playback_video = std::make_unique<NullRenderer>();
+ } else {
+ playback_video.reset(test::VideoRenderer::Create(
+ window_title.str().c_str(), absl::GetFlag(FLAGS_render_width),
+ absl::GetFlag(FLAGS_render_height)));
+ }
+ auto file_passthrough = std::make_unique<FileRenderPassthrough>(
+ absl::GetFlag(FLAGS_out_base), playback_video.get());
+ stream_state->sinks.push_back(std::move(playback_video));
+ stream_state->sinks.push_back(std::move(file_passthrough));
+ // Setup the configuration from the flags.
+ VideoReceiveStreamInterface::Config receive_config(
+ &(stream_state->transport));
+ receive_config.rtp.remote_ssrc = absl::GetFlag(FLAGS_ssrc);
+ receive_config.rtp.local_ssrc = kReceiverLocalSsrc;
+ receive_config.rtp.rtx_ssrc = absl::GetFlag(FLAGS_ssrc_rtx);
+ receive_config.rtp.rtx_associated_payload_types[absl::GetFlag(
+ FLAGS_media_payload_type_rtx)] = absl::GetFlag(FLAGS_media_payload_type);
+ receive_config.rtp
+ .rtx_associated_payload_types[absl::GetFlag(FLAGS_red_payload_type_rtx)] =
+ absl::GetFlag(FLAGS_red_payload_type);
+ receive_config.rtp.ulpfec_payload_type =
+ absl::GetFlag(FLAGS_ulpfec_payload_type);
+ receive_config.rtp.red_payload_type = absl::GetFlag(FLAGS_red_payload_type);
+ receive_config.rtp.nack.rtp_history_ms = 1000;
+
+ if (absl::GetFlag(FLAGS_flexfec_payload_type) != -1) {
+ receive_config.rtp.protected_by_flexfec = true;
+ FlexfecReceiveStream::Config flexfec_config(&(stream_state->transport));
+ flexfec_config.payload_type = absl::GetFlag(FLAGS_flexfec_payload_type);
+ flexfec_config.protected_media_ssrcs.push_back(absl::GetFlag(FLAGS_ssrc));
+ flexfec_config.rtp.remote_ssrc = absl::GetFlag(FLAGS_ssrc_flexfec);
+ FlexfecReceiveStream* flexfec_stream =
+ call->CreateFlexfecReceiveStream(flexfec_config);
+ receive_config.rtp.packet_sink_ = flexfec_stream;
+ stream_state->flexfec_streams.push_back(flexfec_stream);
+ }
+
+ receive_config.renderer = stream_state->sinks.back().get();
+
+ // Setup the receiving stream
+ VideoReceiveStreamInterface::Decoder decoder;
+ decoder = test::CreateMatchingDecoder(absl::GetFlag(FLAGS_media_payload_type),
+ absl::GetFlag(FLAGS_codec));
+ if (!absl::GetFlag(FLAGS_decoder_bitstream_filename).empty()) {
+ // Replace decoder with file writer if we're writing the bitstream to a
+ // file instead.
+ stream_state->decoder_factory =
+ std::make_unique<test::FunctionVideoDecoderFactory>([]() {
+ return std::make_unique<DecoderBitstreamFileWriter>(
+ absl::GetFlag(FLAGS_decoder_bitstream_filename).c_str());
+ });
+ } else if (!absl::GetFlag(FLAGS_decoder_ivf_filename).empty()) {
+ // Replace decoder with file writer if we're writing the ivf to a
+ // file instead.
+ stream_state->decoder_factory =
+ std::make_unique<test::FunctionVideoDecoderFactory>([]() {
+ return std::make_unique<DecoderIvfFileWriter>(
+ absl::GetFlag(FLAGS_decoder_ivf_filename).c_str(),
+ absl::GetFlag(FLAGS_codec));
+ });
+ } else if (absl::GetFlag(FLAGS_disable_decoding)) {
+ stream_state->decoder_factory =
+ std::make_unique<test::FunctionVideoDecoderFactory>(
+ []() { return std::make_unique<test::FakeDecoder>(); });
+ } else {
+ stream_state->decoder_factory = std::make_unique<InternalDecoderFactory>();
+ }
+ receive_config.decoder_factory = stream_state->decoder_factory.get();
+ receive_config.decoders.push_back(decoder);
+
+ stream_state->receive_streams.emplace_back(
+ call->CreateVideoReceiveStream(std::move(receive_config)));
+ return stream_state;
+}
+
+std::unique_ptr<test::RtpFileReader> CreateRtpReader(
+ const std::string& rtp_dump_path) {
+ std::unique_ptr<test::RtpFileReader> rtp_reader(test::RtpFileReader::Create(
+ test::RtpFileReader::kRtpDump, rtp_dump_path));
+ if (!rtp_reader) {
+ rtp_reader.reset(
+ test::RtpFileReader::Create(test::RtpFileReader::kPcap, rtp_dump_path));
+ if (!rtp_reader) {
+ fprintf(stderr,
+ "Couldn't open input file as either a rtpdump or .pcap. Note "
+ "that .pcapng is not supported.\nTrying to interpret the file as "
+ "length/packet interleaved.\n");
+ rtp_reader.reset(test::RtpFileReader::Create(
+ test::RtpFileReader::kLengthPacketInterleaved, rtp_dump_path));
+ if (!rtp_reader) {
+ fprintf(stderr,
+ "Unable to open input file with any supported format\n");
+ return nullptr;
+ }
+ }
+ }
+ return rtp_reader;
+}
+
+// The RtpReplayer is responsible for parsing the configuration provided by
+// the user, setting up the windows, receive streams and decoders and then
+// replaying the provided RTP dump.
+class RtpReplayer final {
+ public:
+ RtpReplayer(absl::string_view replay_config_path,
+ absl::string_view rtp_dump_path,
+ std::unique_ptr<FieldTrialsView> field_trials,
+ bool simulated_time)
+ : replay_config_path_(replay_config_path),
+ rtp_dump_path_(rtp_dump_path),
+ field_trials_(std::move(field_trials)),
+ rtp_reader_(CreateRtpReader(rtp_dump_path_)) {
+ TaskQueueFactory* task_queue_factory;
+ if (simulated_time) {
+ time_sim_ = std::make_unique<GlobalSimulatedTimeController>(
+ Timestamp::Millis(1 << 30));
+ task_queue_factory = time_sim_->GetTaskQueueFactory();
+ } else {
+ task_queue_factory_ = CreateDefaultTaskQueueFactory(field_trials_.get()),
+ task_queue_factory = task_queue_factory_.get();
+ }
+ worker_thread_ =
+ std::make_unique<rtc::TaskQueue>(task_queue_factory->CreateTaskQueue(
+ "worker_thread", TaskQueueFactory::Priority::NORMAL));
+ rtc::Event event;
+ worker_thread_->PostTask([&]() {
+ Call::Config call_config(&event_log_);
+ call_config.trials = field_trials_.get();
+ call_config.task_queue_factory = task_queue_factory;
+ call_.reset(Call::Create(call_config));
+
+ // Creation of the streams must happen inside a task queue because it is
+ // resued as a worker thread.
+ if (replay_config_path_.empty()) {
+ stream_state_ = ConfigureFromFlags(rtp_dump_path_, call_.get());
+ } else {
+ stream_state_ = ConfigureFromFile(replay_config_path_, call_.get());
+ }
+ event.Set();
+ });
+ event.Wait(/*give_up_after=*/TimeDelta::Seconds(10));
+
+ RTC_CHECK(stream_state_);
+ RTC_CHECK(rtp_reader_);
+ }
+
+ ~RtpReplayer() {
+ // Destruction of streams and the call must happen on the same thread as
+ // their creation.
+ rtc::Event event;
+ worker_thread_->PostTask([&]() {
+ for (const auto& receive_stream : stream_state_->receive_streams) {
+ call_->DestroyVideoReceiveStream(receive_stream);
+ }
+ for (const auto& flexfec_stream : stream_state_->flexfec_streams) {
+ call_->DestroyFlexfecReceiveStream(flexfec_stream);
+ }
+ call_.reset();
+ event.Set();
+ });
+ event.Wait(/*give_up_after=*/TimeDelta::Seconds(10));
+ }
+
+ void Run() {
+ rtc::Event event;
+ worker_thread_->PostTask([&]() {
+ // Start replaying the provided stream now that it has been configured.
+ // VideoReceiveStreams must be started on the same thread as they were
+ // created on.
+ for (const auto& receive_stream : stream_state_->receive_streams) {
+ receive_stream->Start();
+ }
+ event.Set();
+ });
+ event.Wait(/*give_up_after=*/TimeDelta::Seconds(10));
+
+ ReplayPackets();
+ }
+
+ private:
+ void ReplayPackets() {
+ enum class Result { kOk, kUnknownSsrc, kParsingFailed };
+ int64_t replay_start_ms = -1;
+ int num_packets = 0;
+ std::map<uint32_t, int> unknown_packets;
+ rtc::Event event(/*manual_reset=*/false, /*initially_signalled=*/false);
+ uint32_t start_timestamp = absl::GetFlag(FLAGS_start_timestamp);
+ uint32_t stop_timestamp = absl::GetFlag(FLAGS_stop_timestamp);
+
+ RtpHeaderExtensionMap extensions;
+ if (absl::GetFlag(FLAGS_transmission_offset_id) != -1) {
+ extensions.RegisterByUri(absl::GetFlag(FLAGS_transmission_offset_id),
+ RtpExtension::kTimestampOffsetUri);
+ }
+ if (absl::GetFlag(FLAGS_abs_send_time_id) != -1) {
+ extensions.RegisterByUri(absl::GetFlag(FLAGS_abs_send_time_id),
+ RtpExtension::kAbsSendTimeUri);
+ }
+
+ while (true) {
+ int64_t now_ms = CurrentTimeMs();
+ if (replay_start_ms == -1) {
+ replay_start_ms = now_ms;
+ }
+
+ test::RtpPacket packet;
+ if (!rtp_reader_->NextPacket(&packet)) {
+ break;
+ }
+ rtc::CopyOnWriteBuffer packet_buffer(
+ packet.original_length > 0 ? packet.original_length : packet.length);
+ memcpy(packet_buffer.MutableData(), packet.data, packet.length);
+ if (packet.length < packet.original_length) {
+ // Only the RTP header was recorded in the RTP dump, payload is not
+ // known and and padding length is not known, zero the payload and
+ // clear the padding bit.
+ memset(packet_buffer.MutableData() + packet.length, 0,
+ packet.original_length - packet.length);
+ packet_buffer.MutableData()[0] &= ~0x20;
+ }
+ RtpPacket header;
+ header.Parse(packet_buffer);
+ if (header.Timestamp() < start_timestamp ||
+ header.Timestamp() > stop_timestamp) {
+ continue;
+ }
+
+ int64_t deliver_in_ms = replay_start_ms + packet.time_ms - now_ms;
+ SleepOrAdvanceTime(deliver_in_ms);
+
+ ++num_packets;
+
+ Result result = Result::kOk;
+ worker_thread_->PostTask([&]() {
+ if (IsRtcpPacket(packet_buffer)) {
+ call_->Receiver()->DeliverRtcpPacket(std::move(packet_buffer));
+ }
+ RtpPacketReceived received_packet(&extensions,
+ Timestamp::Millis(CurrentTimeMs()));
+ if (!received_packet.Parse(std::move(packet_buffer))) {
+ result = Result::kParsingFailed;
+ return;
+ }
+ call_->Receiver()->DeliverRtpPacket(
+ MediaType::VIDEO, received_packet,
+ [&result](const RtpPacketReceived& parsed_packet) -> bool {
+ result = Result::kUnknownSsrc;
+ // No point in trying to demux again.
+ return false;
+ });
+ event.Set();
+ });
+ event.Wait(/*give_up_after=*/TimeDelta::Seconds(10));
+
+ switch (result) {
+ case Result::kOk:
+ break;
+ case Result::kUnknownSsrc: {
+ if (unknown_packets[header.Ssrc()] == 0)
+ fprintf(stderr, "Unknown SSRC: %u!\n", header.Ssrc());
+ ++unknown_packets[header.Ssrc()];
+ break;
+ }
+ case Result::kParsingFailed: {
+ fprintf(stderr,
+ "Packet error, corrupt packets or incorrect setup?\n");
+ fprintf(stderr, "Packet len=%zu pt=%u seq=%u ts=%u ssrc=0x%8x\n",
+ packet.length, header.PayloadType(), header.SequenceNumber(),
+ header.Timestamp(), header.Ssrc());
+ break;
+ }
+ }
+ }
+ // Note that even when `extend_run_time_duration` is zero
+ // `SleepOrAdvanceTime` should still be called in order to process the last
+ // delivered packet when running in simulated time.
+ SleepOrAdvanceTime(absl::GetFlag(FLAGS_extend_run_time_duration) * 1000);
+
+ fprintf(stderr, "num_packets: %d\n", num_packets);
+
+ for (std::map<uint32_t, int>::const_iterator it = unknown_packets.begin();
+ it != unknown_packets.end(); ++it) {
+ fprintf(stderr, "Packets for unknown ssrc '%u': %d\n", it->first,
+ it->second);
+ }
+ }
+
+ int64_t CurrentTimeMs() {
+ return time_sim_ ? time_sim_->GetClock()->TimeInMilliseconds()
+ : rtc::TimeMillis();
+ }
+
+ void SleepOrAdvanceTime(int64_t duration_ms) {
+ if (time_sim_) {
+ time_sim_->AdvanceTime(TimeDelta::Millis(duration_ms));
+ } else if (duration_ms > 0) {
+ SleepMs(duration_ms);
+ }
+ }
+
+ const std::string replay_config_path_;
+ const std::string rtp_dump_path_;
+ RtcEventLogNull event_log_;
+ std::unique_ptr<FieldTrialsView> field_trials_;
+ std::unique_ptr<GlobalSimulatedTimeController> time_sim_;
+ std::unique_ptr<TaskQueueFactory> task_queue_factory_;
+ std::unique_ptr<rtc::TaskQueue> worker_thread_;
+ std::unique_ptr<Call> call_;
+ std::unique_ptr<test::RtpFileReader> rtp_reader_;
+ std::unique_ptr<StreamState> stream_state_;
+};
+
+void RtpReplay() {
+ RtpReplayer replayer(
+ absl::GetFlag(FLAGS_config_file), absl::GetFlag(FLAGS_input_file),
+ std::make_unique<FieldTrials>(absl::GetFlag(FLAGS_force_fieldtrials)),
+ absl::GetFlag(FLAGS_simulated_time));
+ replayer.Run();
+}
+
+} // namespace
+} // namespace webrtc
+
+int main(int argc, char* argv[]) {
+ ::testing::InitGoogleTest(&argc, argv);
+ absl::ParseCommandLine(argc, argv);
+
+ RTC_CHECK(ValidatePayloadType(absl::GetFlag(FLAGS_media_payload_type)));
+ RTC_CHECK(ValidatePayloadType(absl::GetFlag(FLAGS_media_payload_type_rtx)));
+ RTC_CHECK(ValidateOptionalPayloadType(absl::GetFlag(FLAGS_red_payload_type)));
+ RTC_CHECK(
+ ValidateOptionalPayloadType(absl::GetFlag(FLAGS_red_payload_type_rtx)));
+ RTC_CHECK(
+ ValidateOptionalPayloadType(absl::GetFlag(FLAGS_ulpfec_payload_type)));
+ RTC_CHECK(
+ ValidateOptionalPayloadType(absl::GetFlag(FLAGS_flexfec_payload_type)));
+ RTC_CHECK(
+ ValidateRtpHeaderExtensionId(absl::GetFlag(FLAGS_abs_send_time_id)));
+ RTC_CHECK(ValidateRtpHeaderExtensionId(
+ absl::GetFlag(FLAGS_transmission_offset_id)));
+ RTC_CHECK(ValidateInputFilenameNotEmpty(absl::GetFlag(FLAGS_input_file)));
+ RTC_CHECK_GE(absl::GetFlag(FLAGS_extend_run_time_duration), 0);
+
+ rtc::ThreadManager::Instance()->WrapCurrentThread();
+ webrtc::test::RunTest(webrtc::RtpReplay);
+ return 0;
+}