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