int main(int argc, const char *argv[]) { int verbose = 0; int gif_error = GIF_ERROR; WebPMuxError err = WEBP_MUX_OK; int ok = 0; const char *in_file = NULL, *out_file = NULL; FILE* out = NULL; GifFileType* gif = NULL; WebPConfig config; WebPPicture frame; int duration = 0; FrameDisposeMethod orig_dispose = FRAME_DISPOSE_NONE; WebPMuxAnimParams anim = { WHITE_COLOR, 0 }; WebPFrameCache* cache = NULL; int is_first_frame = 1; // Whether we are processing the first frame. int done; int c; int quiet = 0; WebPMux* mux = NULL; WebPData webp_data = { NULL, 0 }; int keep_metadata = METADATA_XMP; // ICC not output by default. int stored_icc = 0; // Whether we have already stored an ICC profile. int stored_xmp = 0; int minimize_size = 0; int default_kmin = 1; // Whether to use default kmin value. int default_kmax = 1; size_t kmin = 0; size_t kmax = 0; int allow_mixed = 0; // If true, each frame can be lossy or lossless. if (!WebPConfigInit(&config) || !WebPPictureInit(&frame)) { fprintf(stderr, "Error! Version mismatch!\n"); return -1; } config.lossless = 1; // Use lossless compression by default. if (argc == 1) { Help(); return 0; } for (c = 1; c < argc; ++c) { int parse_error = 0; if (!strcmp(argv[c], "-h") || !strcmp(argv[c], "-help")) { Help(); return 0; } else if (!strcmp(argv[c], "-o") && c < argc - 1) { out_file = argv[++c]; } else if (!strcmp(argv[c], "-lossy")) { config.lossless = 0; } else if (!strcmp(argv[c], "-mixed")) { allow_mixed = 1; config.lossless = 0; } else if (!strcmp(argv[c], "-q") && c < argc - 1) { config.quality = ExUtilGetFloat(argv[++c], &parse_error); } else if (!strcmp(argv[c], "-m") && c < argc - 1) { config.method = ExUtilGetInt(argv[++c], 0, &parse_error); } else if (!strcmp(argv[c], "-min_size")) { minimize_size = 1; } else if (!strcmp(argv[c], "-kmax") && c < argc - 1) { kmax = ExUtilGetUInt(argv[++c], 0, &parse_error); default_kmax = 0; } else if (!strcmp(argv[c], "-kmin") && c < argc - 1) { kmin = ExUtilGetUInt(argv[++c], 0, &parse_error); default_kmin = 0; } else if (!strcmp(argv[c], "-f") && c < argc - 1) { config.filter_strength = ExUtilGetInt(argv[++c], 0, &parse_error); } else if (!strcmp(argv[c], "-metadata") && c < argc - 1) { static const struct { const char* option; int flag; } kTokens[] = { { "all", METADATA_ALL }, { "none", 0 }, { "icc", METADATA_ICC }, { "xmp", METADATA_XMP }, }; const size_t kNumTokens = sizeof(kTokens) / sizeof(*kTokens); const char* start = argv[++c]; const char* const end = start + strlen(start); keep_metadata = 0; while (start < end) { size_t i; const char* token = strchr(start, ','); if (token == NULL) token = end; for (i = 0; i < kNumTokens; ++i) { if ((size_t)(token - start) == strlen(kTokens[i].option) && !strncmp(start, kTokens[i].option, strlen(kTokens[i].option))) { if (kTokens[i].flag != 0) { keep_metadata |= kTokens[i].flag; } else { keep_metadata = 0; } break; } } if (i == kNumTokens) { fprintf(stderr, "Error! Unknown metadata type '%.*s'\n", (int)(token - start), start); Help(); return -1; } start = token + 1; } } else if (!strcmp(argv[c], "-mt")) { ++config.thread_level; } else if (!strcmp(argv[c], "-version")) { const int enc_version = WebPGetEncoderVersion(); const int mux_version = WebPGetMuxVersion(); printf("WebP Encoder version: %d.%d.%d\nWebP Mux version: %d.%d.%d\n", (enc_version >> 16) & 0xff, (enc_version >> 8) & 0xff, enc_version & 0xff, (mux_version >> 16) & 0xff, (mux_version >> 8) & 0xff, mux_version & 0xff); return 0; } else if (!strcmp(argv[c], "-quiet")) { quiet = 1; } else if (!strcmp(argv[c], "-v")) { verbose = 1; } else if (!strcmp(argv[c], "--")) { if (c < argc - 1) in_file = argv[++c]; break; } else if (argv[c][0] == '-') { fprintf(stderr, "Error! Unknown option '%s'\n", argv[c]); Help(); return -1; } else { in_file = argv[c]; } if (parse_error) { Help(); return -1; } }
int ExUtilGetInt(const char* const v, int base, int* const error) { return (int)ExUtilGetUInt(v, base, error); }