624 lines
22 KiB
C++
624 lines
22 KiB
C++
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#include <google/protobuf/descriptor.h>
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#include <google/protobuf/wire_format_lite.h>
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#include <ipc/common.pb.h>
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#include <ipc/internal.pb.h>
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#include "playback_process.hpp"
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#include "playback_backend.hpp"
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#include <functional>
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#include "rpc.hpp"
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#include "thirdparty/CRC.hpp"
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <exception>
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#include <thread>
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#include <config.h>
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#include <signal.h>
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#include "backend.hpp"
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#include "util.hpp"
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#include "log.hpp"
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#include <chrono>
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#include <fmt/core.h>
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#include <fmt/format.h>
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#ifdef __WINDOWS__
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#include <windows.h>
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#endif
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#include <google/protobuf/message.h>
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#include "util.hpp"
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using namespace google::protobuf;
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int sndfd;
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int rcvfd;
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extern char *executable_path;
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void print_field_descriptor(const google::protobuf::FieldDescriptor *fdesc, const google::protobuf::Message &msg, size_t level) {
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auto desc = msg.GetDescriptor();
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auto reflection = msg.GetReflection();
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static std::map<google::protobuf::FieldDescriptor::Label, const char*> labelNames = {
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{(google::protobuf::FieldDescriptor::Label)0, "(Error)"},
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{google::protobuf::FieldDescriptor::LABEL_OPTIONAL, "Optional"},
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{google::protobuf::FieldDescriptor::LABEL_REPEATED, "Repeated"},
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{google::protobuf::FieldDescriptor::LABEL_REQUIRED, "Required"}
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};
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DEBUG.writef_level(level, "- %s = %d", fdesc->full_name().c_str(), fdesc->number());
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level++;
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DEBUG.writef_level(level, "Type: %s (C++: %s)", fdesc->type_name(), fdesc->cpp_type_name());
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std::string value = "(None)";
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if (fdesc->has_default_value()) {
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FORMAT_CPP_TYPE_LOWERCASE(fdesc, value, fdesc->default_value_);
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DEBUG.writef_level(level, "Default value: %s", value.c_str());
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}
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DEBUG.writef_level(level, "Label: %s", labelNames.contains(fdesc->label()) ? labelNames[fdesc->label()] : labelNames[(google::protobuf::FieldDescriptor::Label)0]);
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DEBUG.writef_level(level, "Index: %d", fdesc->index());
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if (fdesc->type() == google::protobuf::FieldDescriptor::TYPE_MESSAGE || fdesc->type() == google::protobuf::FieldDescriptor::TYPE_GROUP) {
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const google::protobuf::Descriptor *desc = fdesc->message_type();
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DEBUG.writef_level(level, "Value: (Message)");
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const Message &out_msg = reflection->GetMessage(msg, fdesc);
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print_ipc_message(out_msg, level + 1);
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return;
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}
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if (fdesc->type() == google::protobuf::FieldDescriptor::TYPE_BYTES) {
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value = "(bytes)";
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} else {
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FORMAT_CPP_TYPE_TITLECASE(fdesc, value, reflection->Get, msg, fdesc);
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}
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DEBUG.writef_level(level, "Value: %s", value.c_str());
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}
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void print_ipc_message(const google::protobuf::Message &msg, size_t level) {
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const google::protobuf::Descriptor *msgdesc = msg.GetDescriptor();
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const google::protobuf::Reflection *reflect = msg.GetReflection();
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DEBUG.writef_level(level, "Message type: %s", msg.GetTypeName().c_str());
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std::vector<const FieldDescriptor *> descriptors;
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reflect->ListFields(msg, &descriptors);
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DEBUG.writef_level(level, "Message field count: %d", descriptors.size());
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for (auto field : descriptors) {
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print_field_descriptor(field, msg, level);
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}
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auto &unknown_fields = reflect->GetUnknownFields(msg);
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DEBUG.writef_level(level, "Unknown fields: %d", unknown_fields.field_count());
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}
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void show_command(const std::string &cmdid, const google::protobuf::Message &msg) {
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DEBUG.writefln("Command %s:", cmdid.c_str());
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print_ipc_message(msg);
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}
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RenderResponseOrError PlaybackProcessServiceImpl::Render(const RenderCommand *cmd) {
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RenderResponseOrError response;
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auto cur_backend = cur_backend_lock.lock();
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size_t maxlen = cmd->len();
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auto lock = render_ptr.lock();
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void *ptr = lock->get_byte_sized<void>(maxlen);
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size_t len = cur_backend->render(ptr, maxlen);
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if (len == 0) {
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DEBUG.writeln("Didn't get any audio when rendering");
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}
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auto output = new RenderResponse();
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output->set_data((const char*)ptr, len);
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output->set_len(len);
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response.set_allocated_output(output);
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return response;
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}
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PropertyDataOrError PlaybackProcessServiceImpl::Get(const GetProperty *request) {
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PropertyDataOrError response;
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auto cur_backend = cur_backend_lock.get_unsafe();
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PropertyData *data = new PropertyData();
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ErrorResponse *err_maybe = nullptr;
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switch (request->id()) {
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case PropertyId::PlaybackRate: {
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DoubleProperty property;
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property.set_value(cur_backend->get_rate());
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data->mutable_value()->PackFrom(property);
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} break;
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case PropertyId::StreamIdProperty: {
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StreamId id;
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id.set_id(cur_backend->get_stream_idx());
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data->mutable_value()->PackFrom(id);
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} break;
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case PropertyId::FilenameProperty: {
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StringProperty prop;
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prop.set_value(std::filesystem::path(cur_backend->get_current_file().value_or("None")).filename().string());
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data->mutable_value()->PackFrom(prop);
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} break;
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case PropertyId::BackendId: {
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StringProperty prop;
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prop.set_value(cur_backend->get_id());
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data->mutable_value()->PackFrom(prop);
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} break;
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case PropertyId::BackendName: {
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StringProperty prop;
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prop.set_value(cur_backend->get_name());
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data->mutable_value()->PackFrom(prop);
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}
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case PropertyId::FilePathProperty: {
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StringProperty path;
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path.set_value(cur_backend->get_current_file().value_or(""));
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data->mutable_value()->PackFrom(path);
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} break;
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case PropertyId::SpecProperty: {
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AudioSpec spec;
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SDL_AudioSpec sdl_spec = cur_backend->get_spec();
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audio_data_t sample_spec = sdl_to_sample_spec(sdl_spec.format);
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DEBUG.writefln("Sample_spec.size: %d", sample_spec.size);
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spec.set_bits(sample_spec.size * 8);
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spec.set_channel_count(sdl_spec.channels);
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spec.set_endian(sample_spec.endian ? EndianID::BIG : EndianID::LITTLE);
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spec.set_format_type(sample_spec.is_float ? FormatType::FLOAT : sample_spec.is_signed ? FormatType::SIGNED : FormatType::UNSIGNED);
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spec.set_sample_rate(sdl_spec.freq);
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data->mutable_value()->PackFrom(spec);
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} break;
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case PropertyId::StreamsProperty: {
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auto full_streams = cur_backend->get_streams();
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if (request->has_idx()) {
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size_t idx = (size_t)request->idx();
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Stream stream;
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if (idx >= full_streams.size()) {
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ErrorResponse *err = new ErrorResponse();
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err->set_id("invalid_index");
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err->set_desc("An attempt to access an array element outside the boundaries of that array was detected.");
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err->set_fatal(false);
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err_maybe = err;
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break;
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}
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auto backend_stream = full_streams[idx];
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stream.set_id(backend_stream.id);
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stream.set_len(backend_stream.length);
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stream.set_title(backend_stream.name);
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data->mutable_value()->PackFrom(stream);
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} else {
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StreamList out_streams;
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for (auto backend_stream : full_streams) {
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Stream stream = *out_streams.add_streams();
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stream.set_id(backend_stream.id);
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stream.set_len(backend_stream.length);
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stream.set_title(backend_stream.name);
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}
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data->mutable_value()->PackFrom(out_streams);
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}
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} break;
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case PropertyId::TitleProperty: {
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StringProperty title;
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title.set_value(cur_backend->get_title().value_or(""));
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data->mutable_value()->PackFrom(title);
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} break;
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case PropertyId::PositionProperty: {
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DoubleProperty pos;
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pos.set_value(cur_backend->get_position());
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data->mutable_value()->PackFrom(pos);
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} break;
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case PropertyId::BackendSpecific: {
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if (!request->has_path()) {
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ErrorResponse *err = new ErrorResponse();
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err->set_id("param_missing");
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err->set_fatal(false);
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err->set_desc("Backend specific parameters require a path.");
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err_maybe = err;
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break;
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}
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auto output_maybe = cur_backend->get(request->path());
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if (output_maybe.has_value()) {
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data->mutable_value()->PackFrom(output_maybe.value());
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} else {
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ErrorResponse *err = new ErrorResponse;
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err->set_id("not_found");
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err->set_fatal(false);
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err->set_desc("The backend reported that the property was not found.");
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err_maybe = err;
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}
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} break;
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case PropertyId::LengthProperty: {
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DoubleProperty output;
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output.set_value(cur_backend->get_length());
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data->mutable_value()->PackFrom(output);
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} break;
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default: {
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ErrorResponse *err = new ErrorResponse();
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err->set_id("invalid_property");
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err->set_fatal(false);
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err->set_desc("The property requested was invalid or write-only");
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err_maybe = err;
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} break;
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}
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if (err_maybe != nullptr) {
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delete data;
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response.set_allocated_err(err_maybe);
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} else {
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response.set_allocated_output(data);
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}
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return response;
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}
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MaybeError PlaybackProcessServiceImpl::Set(const SetProperty *request) {
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MaybeError response;
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ErrorResponse *err_maybe = nullptr;
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auto cur_backend = cur_backend_lock.lock();
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switch (request->id()) {
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case PropertyId::PlaybackRate: {
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cur_backend->set_rate(resolve_any<DoubleProperty>(request->value())->value());
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} break;
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case PropertyId::PositionProperty: {
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double value = resolve_any<DoubleProperty>(request->value())->value();
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cur_backend->seek(value);
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} break;
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case PropertyId::StreamIdProperty: {
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cur_backend->switch_stream(resolve_any<StreamId>(request->value())->id());
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} break;
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case PropertyId::BackendSpecific: {
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if (!request->has_path()) {
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ErrorResponse *err = new ErrorResponse();
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err->set_id("param_missing");
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err->set_fatal(false);
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err->set_desc("Backend specific parameters require a path.");
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err_maybe = err;
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break;
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}
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if (!cur_backend->set(request->path(), request->value())) {
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ErrorResponse *err = new ErrorResponse();
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err->set_id("not_found");
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err->set_fatal(false);
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err->set_desc("The backend reported that the property being set was invalid for it.");
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err_maybe = err;
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}
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} break;
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default: {
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ErrorResponse *err = new ErrorResponse();
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err->set_id("invalid_property");
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err->set_fatal(false);
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err->set_desc("The property requested was invalid or read-only");
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err_maybe = err;
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} break;
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}
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if (err_maybe != nullptr) {
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response.set_allocated_err(err_maybe);
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}
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return response;
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}
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ResetResponse PlaybackProcessServiceImpl::Reset(const ResetProperty *request) {
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ResetResponse response;
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auto cur_backend = cur_backend_lock.lock();
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auto path = request->path();
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std::optional<uint64_t> idx = {};
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if (request->has_idx()) {
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idx = request->idx();
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}
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auto output = cur_backend->reset(path);
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if (output.has_value()) {
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PropertyDataOrError *real_output = new PropertyDataOrError();
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PropertyData *data = new PropertyData();
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data->mutable_value()->PackFrom(output.value());
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data->set_id(PropertyId::BackendSpecific);
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data->clear_idx();
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real_output->set_allocated_output(data);
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response.set_allocated_value(real_output);
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}
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return response;
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}
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MaybeError PlaybackProcessServiceImpl::Quit(const QuitCmd *request) {
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if (process == nullptr) return MaybeError();
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process->done = true;
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cur_backend_lock.get_unsafe()->cleanup();
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return MaybeError();
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}
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MaybeError PlaybackProcessServiceImpl::Init(const InitCommand *cmd) {
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MaybeError ret;
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MaybeError *response = &ret;
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auto lock = cur_backend_lock.lock();
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render_ptr.lock().set(new DynPtr(), true);
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lock.clear();
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auto filename = cmd->filename();
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if (!std::filesystem::exists(filename)) {
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ErrorResponse *maybe_error = response->mutable_err();
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maybe_error->set_desc("File not found");
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maybe_error->set_id("not_found");
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maybe_error->set_fatal(true);
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process->done = true;
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return ret;
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}
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auto idx = cmd->idx();
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for (auto &backend : PlaybackBackendHelper()) {
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DEBUG.writefln("Trying backend: %s", backend.second->get_name().c_str());
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try {
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backend.second->init(filename.c_str(), idx);
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} catch (std::exception e) {
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DEBUG.writeln("Cleaning up backend.");
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backend.second->cleanup();
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continue;
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}
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lock.set(backend.second, false);
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DEBUG.writefln("Using backend: %s", backend.second->get_name().c_str());
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break;
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}
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if (!cur_backend_lock.has_value()) {
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ErrorResponse *maybe_error = response->mutable_err();
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maybe_error->set_desc("Couldn't find a backend.");
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maybe_error->set_id("no_backend_for_file");
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maybe_error->set_fatal(true);
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process->done = true;
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DEBUG.writefln("Couldn't find any backend.");
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return ret;
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}
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return ret;
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}
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void init_logging_subprocess(PlaybackProcess *proc) {
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Looper::Log::init_logging();
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}
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PlaybackStream deserialize_stream(Stream serialized) {
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PlaybackStream stream;
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stream.id = serialized.id();
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stream.length = serialized.len();
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stream.name = serialized.title();
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return stream;
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}
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Stream serialize_stream(PlaybackStream stream, std::optional<Stream*> stream_ptr = {}) {
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Stream serialized;
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serialized.set_id(stream.id);
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serialized.set_len(stream.length);
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serialized.set_title(stream.name);
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if (stream_ptr.has_value()) {
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*(stream_ptr.value()) = serialized;
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}
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return serialized;
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}
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std::vector<PlaybackStream> deserialize_stream_list(StreamList list) {
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int len = list.streams_size();
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std::vector<PlaybackStream> output;
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output.reserve(len);
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for (int i = 0; i < len; i++) {
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Stream stream = list.streams(i);
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output.push_back(deserialize_stream(stream));
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}
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return output;
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}
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StreamList serialize_stream_list(std::vector<PlaybackStream> streams) {
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StreamList list;
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for (auto input : streams) {
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Stream *stream = list.add_streams();
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serialize_stream(input, stream);
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}
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return list;
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}
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PlaybackProcess::PlaybackProcess(PlaybackProcess *parent) {
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other_process = parent;
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DEBUG.writeln("Playback backends: ");
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for (auto &backend : PlaybackBackendHelper()) {
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DEBUG.writefln(" - %s", backend.second->get_id().c_str());
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}
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DEBUG.writeln("Host process address: (in-process)");
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}
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PlaybackProcess::PlaybackProcess(std::vector<std::string> args) {
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done = false;
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is_playback_process = true;
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Looper::Log::init_logging();
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init_playback_backends();
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DEBUG.writeln("Playback backends: ");
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for (auto &backend : PlaybackBackendHelper()) {
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DEBUG.writefln(" - %s", backend.second->get_id().c_str());
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}
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init_audio_data();
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}
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PlaybackProcess::PlaybackProcess(std::string filename, int idx) {
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//bool multi_process = Looper::Options::get_option<bool>("playback.multi_process", false);
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done = false;
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this->done = false;
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this->impl.process = this;
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other_process = new PlaybackProcess(this);
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done = true;
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DEBUG.writeln("Playback process started.");
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InitCommand cmd;
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cmd.set_filename(filename);
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cmd.set_idx(idx);
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RPCCall call;
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call.mutable_init()->CopyFrom(cmd);
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RPCResponse response = SendCommand(&call);
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if (response.has_err()) {
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this->init_failed = true;
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delete other_process;
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other_process = nullptr;
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auto err = response.err();
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throw CustomException(err.has_desc() ? err.desc() : err.id());
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}
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}
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bool PlaybackProcess::process_running() {
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if (is_playback_process) return true;
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if (other_process != nullptr) return true;
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return kill(pid, 0) == 0;
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}
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void PlaybackProcess::run_playback_process() {
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throw std::exception();
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}
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int looper_run_playback_process(std::vector<std::string> args) {
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auto proc = PlaybackProcess(args);
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proc.run_playback_process();
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return 0;
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}
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PropertyData PlaybackProcess::get_property(PropertyId property, std::optional<uint64_t> idx) {
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GetProperty get_property;
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get_property.set_id(property);
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if (idx.has_value()) {
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get_property.set_idx(idx.value());
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} else {
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get_property.clear_idx();
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}
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RPCCall call;
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call.mutable_get()->CopyFrom(get_property);
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RPCResponse output = SendCommand(&call);
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if (output.has_err()) {
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throw std::exception();
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}
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return output.data();
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}
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void PlaybackProcess::set_property(PropertyId id, PropertyData data, std::optional<uint64_t> idx) {
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SetProperty set_property;
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set_property.set_id(id);
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set_property.mutable_value()->CopyFrom(data.value());
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if (idx.has_value()) {
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set_property.set_idx(idx.value());
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} else {
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set_property.clear_idx();
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}
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RPCCall call;
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call.mutable_set()->CopyFrom(set_property);
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SendCommand(&call);
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}
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std::string PlaybackProcess::get_version_code() {
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return std::string(TAG) +
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#ifdef DEBUG_MODE
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std::string("-debugmode") +
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#endif
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std::string("-at") + std::string(__TIME__);
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}
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double PlaybackProcess::get_position() {
|
|
return get_property_double(PropertyId::PositionProperty);
|
|
}
|
|
void PlaybackProcess::set_position(double value) {
|
|
DoubleProperty *pos = new DoubleProperty();
|
|
pos->set_value(value);
|
|
set_property_value<DoubleProperty>(PropertyId::PositionProperty, pos);
|
|
delete pos;
|
|
}
|
|
double PlaybackProcess::get_length() {
|
|
return get_property_double(PropertyId::LengthProperty);
|
|
}
|
|
size_t PlaybackProcess::get_stream_idx() {
|
|
StreamId *id = get_property_value<StreamId>(PropertyId::StreamIdProperty);
|
|
size_t output = id->id();
|
|
delete id;
|
|
return output;
|
|
}
|
|
void PlaybackProcess::set_stream_idx(size_t idx) {
|
|
StreamId *id = new StreamId();
|
|
id->set_id(idx);
|
|
set_property_value<StreamId>(PropertyId::StreamIdProperty, id);
|
|
delete id;
|
|
}
|
|
std::string PlaybackProcess::get_title() {
|
|
return get_property_string(PropertyId::TitleProperty);
|
|
}
|
|
std::string PlaybackProcess::get_file_path() {
|
|
return get_property_string(PropertyId::FilePathProperty);
|
|
}
|
|
std::string PlaybackProcess::get_file_name() {
|
|
return get_property_string(PropertyId::FilenameProperty);
|
|
}
|
|
RPCResponse PlaybackProcess::SendCommand(RPCCall *call) {
|
|
SimpleAckResponse *ack = new SimpleAckResponse();
|
|
RPCResponse resp;
|
|
if (call->has_get()) {
|
|
PropertyDataOrError output = impl.Get(&call->get());
|
|
if (output.has_err()) {
|
|
resp.mutable_err()->CopyFrom(output.err());
|
|
} else {
|
|
resp.mutable_data()->CopyFrom(output.output());
|
|
}
|
|
} else if (call->has_init()) {
|
|
MaybeError output = impl.Init(&call->init());
|
|
if (output.has_err()) {
|
|
resp.mutable_err()->CopyFrom(output.err());
|
|
} else {
|
|
resp.set_allocated_ack(ack);
|
|
}
|
|
} else if (call->has_quit()) {
|
|
MaybeError output = impl.Quit(&call->quit());
|
|
if (output.has_err()) {
|
|
resp.mutable_err()->CopyFrom(output.err());
|
|
} else {
|
|
resp.set_allocated_ack(ack);
|
|
}
|
|
} else if (call->has_set()) {
|
|
MaybeError output = impl.Set(&call->set());
|
|
if (output.has_err()) {
|
|
resp.mutable_err()->CopyFrom(output.err());
|
|
} else {
|
|
resp.set_allocated_ack(ack);
|
|
}
|
|
} else if (call->has_reset()) {
|
|
ResetResponse output = impl.Reset(&call->reset());
|
|
resp.mutable_reset()->CopyFrom(output);
|
|
} else if (call->has_render()) {
|
|
RenderResponseOrError output = impl.Render(&call->render());
|
|
if (output.has_err()) {
|
|
resp.mutable_err()->CopyFrom(output.err());
|
|
} else {
|
|
resp.mutable_render()->CopyFrom(output.output());
|
|
}
|
|
}
|
|
if (!resp.has_ack()) {
|
|
delete ack;
|
|
}
|
|
return resp;
|
|
}
|
|
PlaybackStream PlaybackProcess::get_playback_stream(size_t idx) {
|
|
auto *stream = get_property_value<Stream>(PropertyId::StreamsProperty, idx);
|
|
PlaybackStream output = deserialize_stream(*stream);
|
|
delete stream;
|
|
return output;
|
|
}
|
|
std::string PlaybackProcess::get_backend_id() {
|
|
return get_property_string(PropertyId::BackendId);
|
|
}
|
|
std::string PlaybackProcess::get_backend_name() {
|
|
return get_property_string(PropertyId::BackendName);
|
|
}
|
|
std::vector<PlaybackStream> PlaybackProcess::get_playback_streams() {
|
|
auto *list = get_property_value<StreamList>(PropertyId::StreamsProperty);
|
|
auto output = deserialize_stream_list(*list);
|
|
delete list;
|
|
return output;
|
|
}
|
|
size_t PlaybackProcess::render(void *buf, size_t maxlen) {
|
|
RenderCommand rend_cmd = RenderCommand();
|
|
rend_cmd.set_len(maxlen);
|
|
RPCResponse response;
|
|
RPCCall call;
|
|
call.mutable_render()->CopyFrom(rend_cmd);
|
|
response = SendCommand(&call);
|
|
if (response.has_err()) {
|
|
ERROR.writefln("Error rendering audio: %s", response.err().id().c_str());
|
|
return 0;
|
|
} else {
|
|
std::string data = response.render().data();
|
|
if (data.length() == 0) {
|
|
WARNING.writeln("Rendering audio didn't produce anything!");
|
|
}
|
|
if (data.length() != response.render().len()) {
|
|
WARNING.writefln("Rendering audio size mismatch: Intended != Provided\nIntended: %d\nProvided: %d", response.render().len(), data.length());
|
|
}
|
|
memcpy(buf, data.data(), data.length());
|
|
return data.length();
|
|
}
|
|
}
|
|
AudioSpec *PlaybackProcess::get_audio_spec() {
|
|
return get_property_value<AudioSpec>(PropertyId::SpecProperty);
|
|
}
|
|
PlaybackProcess::~PlaybackProcess() {
|
|
if (init_failed || other_process == nullptr) {
|
|
done = true;
|
|
return;
|
|
}
|
|
QuitCmd quit_cmd;
|
|
RPCCall call;
|
|
call.mutable_quit()->CopyFrom(quit_cmd);
|
|
SendCommand(&call);
|
|
done = true;
|
|
}
|
|
void PlaybackProcess::threadfunc() {
|
|
while (!process_running()) {
|
|
std::this_thread::yield();
|
|
if (done) return;
|
|
}
|
|
while (true) {
|
|
if (!process_running()) {
|
|
done = true;
|
|
started.notify_all();
|
|
}
|
|
if (done) {
|
|
return;
|
|
}
|
|
std::this_thread::yield();
|
|
}
|
|
}
|
|
double PlaybackProcess::get_cached_rate() {
|
|
return get_property_double(PropertyId::PlaybackRate);
|
|
}
|
|
void PlaybackProcess::set_rate(double value) {
|
|
set_property_double(PropertyId::PlaybackRate, value);
|
|
}
|