// Copyright 2020 Google LLC // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. #include #include #include #include #include #include #include "sandboxed_api/sandbox2/util/fileops.h" #include "sandboxed_api/util/statusor.h" #include "guetzli_transaction.h" namespace { constexpr int kDefaultJPEGQuality = 95; constexpr int kDefaultMemlimitMB = 6000; void Usage() { fprintf(stderr, "Guetzli JPEG compressor. Usage: \n" "guetzli [flags] input_filename output_filename\n" "\n" "Flags:\n" " --verbose - Print a verbose trace of all attempts to standard output.\n" " --quality Q - Visual quality to aim for, expressed as a JPEG quality value.\n" " Default value is %d.\n" " --memlimit M - Memory limit in MB. Guetzli will fail if unable to stay under\n" " the limit. Default limit is %d MB.\n" " --nomemlimit - Do not limit memory usage.\n", kDefaultJPEGQuality, kDefaultMemlimitMB); exit(1); } } // namespace int main(int argc, const char** argv) { int verbose = 0; int quality = kDefaultJPEGQuality; int memlimit_mb = kDefaultMemlimitMB; int opt_idx = 1; for(;opt_idx < argc;opt_idx++) { if (strnlen(argv[opt_idx], 2) < 2 || argv[opt_idx][0] != '-' || argv[opt_idx][1] != '-') break; if (!strcmp(argv[opt_idx], "--verbose")) { verbose = 1; } else if (!strcmp(argv[opt_idx], "--quality")) { opt_idx++; if (opt_idx >= argc) Usage(); quality = atoi(argv[opt_idx]); } else if (!strcmp(argv[opt_idx], "--memlimit")) { opt_idx++; if (opt_idx >= argc) Usage(); memlimit_mb = atoi(argv[opt_idx]); } else if (!strcmp(argv[opt_idx], "--nomemlimit")) { memlimit_mb = -1; } else if (!strcmp(argv[opt_idx], "--")) { opt_idx++; break; } else { fprintf(stderr, "Unknown commandline flag: %s\n", argv[opt_idx]); Usage(); } } if (argc - opt_idx != 2) { Usage(); } guetzli::sandbox::TransactionParams params = { argv[opt_idx], argv[opt_idx + 1], verbose, quality, memlimit_mb }; guetzli::sandbox::GuetzliTransaction transaction(std::move(params)); auto result = transaction.Run(); if (!result.ok()) { std::cerr << result.ToString() << std::endl; return EXIT_FAILURE; } return EXIT_SUCCESS; }