| /* |
| * Various utilities for command line tools |
| * Copyright (c) 2000-2003 Fabrice Bellard |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <string.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| #include <math.h> |
| |
| /* Include only the enabled headers since some compilers (namely, Sun |
| Studio) will not omit unused inline functions and create undefined |
| references to libraries that are not being built. */ |
| |
| #include "config.h" |
| #include "libavformat/avformat.h" |
| #include "libavfilter/avfilter.h" |
| #include "libavdevice/avdevice.h" |
| #include "libavresample/avresample.h" |
| #include "libswscale/swscale.h" |
| #include "libswresample/swresample.h" |
| #if CONFIG_POSTPROC |
| #include "libpostproc/postprocess.h" |
| #endif |
| #include "libavutil/avassert.h" |
| #include "libavutil/avstring.h" |
| #include "libavutil/mathematics.h" |
| #include "libavutil/parseutils.h" |
| #include "libavutil/pixdesc.h" |
| #include "libavutil/eval.h" |
| #include "libavutil/dict.h" |
| #include "libavutil/opt.h" |
| #include "cmdutils.h" |
| #include "version.h" |
| #if CONFIG_NETWORK |
| #include "libavformat/network.h" |
| #endif |
| #if HAVE_SYS_RESOURCE_H |
| #include <sys/resource.h> |
| #endif |
| |
| struct SwsContext *sws_opts; |
| SwrContext *swr_opts; |
| AVDictionary *format_opts, *codec_opts; |
| |
| const int this_year = 2013; |
| |
| static FILE *report_file; |
| |
| void init_opts(void) |
| { |
| #if CONFIG_SWSCALE |
| sws_opts = sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC, |
| NULL, NULL, NULL); |
| #endif |
| swr_opts = swr_alloc(); |
| } |
| |
| void uninit_opts(void) |
| { |
| #if CONFIG_SWSCALE |
| sws_freeContext(sws_opts); |
| sws_opts = NULL; |
| #endif |
| swr_free(&swr_opts); |
| av_dict_free(&format_opts); |
| av_dict_free(&codec_opts); |
| } |
| |
| void log_callback_help(void *ptr, int level, const char *fmt, va_list vl) |
| { |
| vfprintf(stdout, fmt, vl); |
| } |
| |
| static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl) |
| { |
| va_list vl2; |
| char line[1024]; |
| static int print_prefix = 1; |
| |
| va_copy(vl2, vl); |
| av_log_default_callback(ptr, level, fmt, vl); |
| av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix); |
| va_end(vl2); |
| fputs(line, report_file); |
| fflush(report_file); |
| } |
| |
| double parse_number_or_die(const char *context, const char *numstr, int type, |
| double min, double max) |
| { |
| char *tail; |
| const char *error; |
| double d = av_strtod(numstr, &tail); |
| if (*tail) |
| error = "Expected number for %s but found: %s\n"; |
| else if (d < min || d > max) |
| error = "The value for %s was %s which is not within %f - %f\n"; |
| else if (type == OPT_INT64 && (int64_t)d != d) |
| error = "Expected int64 for %s but found %s\n"; |
| else if (type == OPT_INT && (int)d != d) |
| error = "Expected int for %s but found %s\n"; |
| else |
| return d; |
| av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max); |
| exit_program(1); |
| return 0; |
| } |
| |
| int64_t parse_time_or_die(const char *context, const char *timestr, |
| int is_duration) |
| { |
| int64_t us; |
| if (av_parse_time(&us, timestr, is_duration) < 0) { |
| av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n", |
| is_duration ? "duration" : "date", context, timestr); |
| exit_program(1); |
| } |
| return us; |
| } |
| |
| void show_help_options(const OptionDef *options, const char *msg, int mask, |
| int value) |
| { |
| const OptionDef *po; |
| int first; |
| |
| first = 1; |
| for (po = options; po->name != NULL; po++) { |
| char buf[64]; |
| if ((po->flags & mask) == value) { |
| if (first) { |
| printf("%s", msg); |
| first = 0; |
| } |
| av_strlcpy(buf, po->name, sizeof(buf)); |
| if (po->flags & HAS_ARG) { |
| av_strlcat(buf, " ", sizeof(buf)); |
| av_strlcat(buf, po->argname, sizeof(buf)); |
| } |
| printf("-%-17s %s\n", buf, po->help); |
| } |
| } |
| } |
| |
| void show_help_children(const AVClass *class, int flags) |
| { |
| const AVClass *child = NULL; |
| av_opt_show2(&class, NULL, flags, 0); |
| printf("\n"); |
| |
| while (child = av_opt_child_class_next(class, child)) |
| show_help_children(child, flags); |
| } |
| |
| static const OptionDef *find_option(const OptionDef *po, const char *name) |
| { |
| const char *p = strchr(name, ':'); |
| int len = p ? p - name : strlen(name); |
| |
| while (po->name != NULL) { |
| if (!strncmp(name, po->name, len) && strlen(po->name) == len) |
| break; |
| po++; |
| } |
| return po; |
| } |
| |
| #if defined(_WIN32) && !defined(__MINGW32CE__) |
| #include <windows.h> |
| /* Will be leaked on exit */ |
| static char** win32_argv_utf8 = NULL; |
| static int win32_argc = 0; |
| |
| /** |
| * Prepare command line arguments for executable. |
| * For Windows - perform wide-char to UTF-8 conversion. |
| * Input arguments should be main() function arguments. |
| * @param argc_ptr Arguments number (including executable) |
| * @param argv_ptr Arguments list. |
| */ |
| static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr) |
| { |
| char *argstr_flat; |
| wchar_t **argv_w; |
| int i, buffsize = 0, offset = 0; |
| |
| if (win32_argv_utf8) { |
| *argc_ptr = win32_argc; |
| *argv_ptr = win32_argv_utf8; |
| return; |
| } |
| |
| win32_argc = 0; |
| argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc); |
| if (win32_argc <= 0 || !argv_w) |
| return; |
| |
| /* determine the UTF-8 buffer size (including NULL-termination symbols) */ |
| for (i = 0; i < win32_argc; i++) |
| buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1, |
| NULL, 0, NULL, NULL); |
| |
| win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize); |
| argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1); |
| if (win32_argv_utf8 == NULL) { |
| LocalFree(argv_w); |
| return; |
| } |
| |
| for (i = 0; i < win32_argc; i++) { |
| win32_argv_utf8[i] = &argstr_flat[offset]; |
| offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1, |
| &argstr_flat[offset], |
| buffsize - offset, NULL, NULL); |
| } |
| win32_argv_utf8[i] = NULL; |
| LocalFree(argv_w); |
| |
| *argc_ptr = win32_argc; |
| *argv_ptr = win32_argv_utf8; |
| } |
| #else |
| static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr) |
| { |
| /* nothing to do */ |
| } |
| #endif /* WIN32 && !__MINGW32CE__ */ |
| |
| int parse_option(void *optctx, const char *opt, const char *arg, |
| const OptionDef *options) |
| { |
| const OptionDef *po; |
| int bool_val = 1; |
| int *dstcount; |
| void *dst; |
| |
| po = find_option(options, opt); |
| if (!po->name && opt[0] == 'n' && opt[1] == 'o') { |
| /* handle 'no' bool option */ |
| po = find_option(options, opt + 2); |
| if ((po->name && (po->flags & OPT_BOOL))) |
| bool_val = 0; |
| } |
| if (!po->name) |
| po = find_option(options, "default"); |
| if (!po->name) { |
| av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt); |
| return AVERROR(EINVAL); |
| } |
| if (po->flags & HAS_ARG && !arg) { |
| av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt); |
| return AVERROR(EINVAL); |
| } |
| |
| /* new-style options contain an offset into optctx, old-style address of |
| * a global var*/ |
| dst = po->flags & (OPT_OFFSET | OPT_SPEC) ? (uint8_t *)optctx + po->u.off |
| : po->u.dst_ptr; |
| |
| if (po->flags & OPT_SPEC) { |
| SpecifierOpt **so = dst; |
| char *p = strchr(opt, ':'); |
| |
| dstcount = (int *)(so + 1); |
| *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1); |
| (*so)[*dstcount - 1].specifier = av_strdup(p ? p + 1 : ""); |
| dst = &(*so)[*dstcount - 1].u; |
| } |
| |
| if (po->flags & OPT_STRING) { |
| char *str; |
| str = av_strdup(arg); |
| *(char **)dst = str; |
| } else if (po->flags & OPT_BOOL) { |
| *(int *)dst = bool_val; |
| } else if (po->flags & OPT_INT) { |
| *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX); |
| } else if (po->flags & OPT_INT64) { |
| *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX); |
| } else if (po->flags & OPT_TIME) { |
| *(int64_t *)dst = parse_time_or_die(opt, arg, 1); |
| } else if (po->flags & OPT_FLOAT) { |
| *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY); |
| } else if (po->flags & OPT_DOUBLE) { |
| *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY); |
| } else if (po->u.func_arg) { |
| int ret = po->flags & OPT_FUNC2 ? po->u.func2_arg(optctx, opt, arg) |
| : po->u.func_arg(opt, arg); |
| if (ret < 0) { |
| av_log(NULL, AV_LOG_ERROR, |
| "Failed to set value '%s' for option '%s'\n", arg, opt); |
| return ret; |
| } |
| } |
| if (po->flags & OPT_EXIT) |
| exit_program(0); |
| return !!(po->flags & HAS_ARG); |
| } |
| |
| void parse_options(void *optctx, int argc, char **argv, const OptionDef *options, |
| void (*parse_arg_function)(void *, const char*)) |
| { |
| const char *opt; |
| int optindex, handleoptions = 1, ret; |
| |
| /* perform system-dependent conversions for arguments list */ |
| prepare_app_arguments(&argc, &argv); |
| |
| /* parse options */ |
| optindex = 1; |
| while (optindex < argc) { |
| opt = argv[optindex++]; |
| |
| if (handleoptions && opt[0] == '-' && opt[1] != '\0') { |
| if (opt[1] == '-' && opt[2] == '\0') { |
| handleoptions = 0; |
| continue; |
| } |
| opt++; |
| |
| if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0) |
| exit_program(1); |
| optindex += ret; |
| } else { |
| if (parse_arg_function) |
| parse_arg_function(optctx, opt); |
| } |
| } |
| } |
| |
| int locate_option(int argc, char **argv, const OptionDef *options, |
| const char *optname) |
| { |
| const OptionDef *po; |
| int i; |
| |
| for (i = 1; i < argc; i++) { |
| const char *cur_opt = argv[i]; |
| |
| if (*cur_opt++ != '-') |
| continue; |
| |
| po = find_option(options, cur_opt); |
| if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o') |
| po = find_option(options, cur_opt + 2); |
| |
| if ((!po->name && !strcmp(cur_opt, optname)) || |
| (po->name && !strcmp(optname, po->name))) |
| return i; |
| |
| if (!po || po->flags & HAS_ARG) |
| i++; |
| } |
| return 0; |
| } |
| |
| static void dump_argument(const char *a) |
| { |
| const unsigned char *p; |
| |
| for (p = a; *p; p++) |
| if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') || |
| *p == '_' || (*p >= 'a' && *p <= 'z'))) |
| break; |
| if (!*p) { |
| fputs(a, report_file); |
| return; |
| } |
| fputc('"', report_file); |
| for (p = a; *p; p++) { |
| if (*p == '\\' || *p == '"' || *p == '$' || *p == '`') |
| fprintf(report_file, "\\%c", *p); |
| else if (*p < ' ' || *p > '~') |
| fprintf(report_file, "\\x%02x", *p); |
| else |
| fputc(*p, report_file); |
| } |
| fputc('"', report_file); |
| } |
| |
| void parse_loglevel(int argc, char **argv, const OptionDef *options) |
| { |
| int idx = locate_option(argc, argv, options, "loglevel"); |
| if (!idx) |
| idx = locate_option(argc, argv, options, "v"); |
| if (idx && argv[idx + 1]) |
| opt_loglevel("loglevel", argv[idx + 1]); |
| idx = locate_option(argc, argv, options, "report"); |
| if (idx || getenv("FFREPORT")) { |
| opt_report("report"); |
| if (report_file) { |
| int i; |
| fprintf(report_file, "Command line:\n"); |
| for (i = 0; i < argc; i++) { |
| dump_argument(argv[i]); |
| fputc(i < argc - 1 ? ' ' : '\n', report_file); |
| } |
| fflush(report_file); |
| } |
| } |
| } |
| |
| #define FLAGS(o) ((o)->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0 |
| int opt_default(const char *opt, const char *arg) |
| { |
| const AVOption *oc, *of, *os, *oswr = NULL; |
| char opt_stripped[128]; |
| const char *p; |
| const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class(), *sc, *swr_class; |
| |
| if (!(p = strchr(opt, ':'))) |
| p = opt + strlen(opt); |
| av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1)); |
| |
| if ((oc = av_opt_find(&cc, opt_stripped, NULL, 0, |
| AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) || |
| ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') && |
| (oc = av_opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) |
| av_dict_set(&codec_opts, opt, arg, FLAGS(oc)); |
| if ((of = av_opt_find(&fc, opt, NULL, 0, |
| AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) |
| av_dict_set(&format_opts, opt, arg, FLAGS(of)); |
| #if CONFIG_SWSCALE |
| sc = sws_get_class(); |
| if ((os = av_opt_find(&sc, opt, NULL, 0, |
| AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) { |
| // XXX we only support sws_flags, not arbitrary sws options |
| int ret = av_opt_set(sws_opts, opt, arg, 0); |
| if (ret < 0) { |
| av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt); |
| return ret; |
| } |
| } |
| #endif |
| swr_class = swr_get_class(); |
| if (!oc && !of && !os && (oswr = av_opt_find(&swr_class, opt, NULL, 0, |
| AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) { |
| int ret = av_opt_set(swr_opts, opt, arg, 0); |
| if (ret < 0) { |
| av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt); |
| return ret; |
| } |
| } |
| |
| if (oc || of || os || oswr) |
| return 0; |
| av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt); |
| return AVERROR_OPTION_NOT_FOUND; |
| } |
| |
| int opt_loglevel(const char *opt, const char *arg) |
| { |
| const struct { const char *name; int level; } log_levels[] = { |
| { "quiet" , AV_LOG_QUIET }, |
| { "panic" , AV_LOG_PANIC }, |
| { "fatal" , AV_LOG_FATAL }, |
| { "error" , AV_LOG_ERROR }, |
| { "warning", AV_LOG_WARNING }, |
| { "info" , AV_LOG_INFO }, |
| { "verbose", AV_LOG_VERBOSE }, |
| { "debug" , AV_LOG_DEBUG }, |
| }; |
| char *tail; |
| int level; |
| int i; |
| |
| for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) { |
| if (!strcmp(log_levels[i].name, arg)) { |
| av_log_set_level(log_levels[i].level); |
| return 0; |
| } |
| } |
| |
| level = strtol(arg, &tail, 10); |
| if (*tail) { |
| av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". " |
| "Possible levels are numbers or:\n", arg); |
| for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) |
| av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name); |
| exit_program(1); |
| } |
| av_log_set_level(level); |
| return 0; |
| } |
| |
| int opt_report(const char *opt) |
| { |
| char filename[64]; |
| time_t now; |
| struct tm *tm; |
| |
| if (report_file) /* already opened */ |
| return 0; |
| time(&now); |
| tm = localtime(&now); |
| snprintf(filename, sizeof(filename), "%s-%04d%02d%02d-%02d%02d%02d.log", |
| program_name, |
| tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, |
| tm->tm_hour, tm->tm_min, tm->tm_sec); |
| report_file = fopen(filename, "w"); |
| if (!report_file) { |
| av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n", |
| filename, strerror(errno)); |
| return AVERROR(errno); |
| } |
| av_log_set_callback(log_callback_report); |
| av_log(NULL, AV_LOG_INFO, |
| "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n" |
| "Report written to \"%s\"\n", |
| program_name, |
| tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, |
| tm->tm_hour, tm->tm_min, tm->tm_sec, |
| filename); |
| av_log_set_level(FFMAX(av_log_get_level(), AV_LOG_VERBOSE)); |
| return 0; |
| } |
| |
| int opt_max_alloc(const char *opt, const char *arg) |
| { |
| char *tail; |
| size_t max; |
| |
| max = strtol(arg, &tail, 10); |
| if (*tail) { |
| av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg); |
| exit_program(1); |
| } |
| av_max_alloc(max); |
| return 0; |
| } |
| |
| int opt_cpuflags(const char *opt, const char *arg) |
| { |
| int ret; |
| unsigned flags = av_get_cpu_flags(); |
| |
| if ((ret = av_parse_cpu_caps(&flags, arg)) < 0) |
| return ret; |
| |
| av_force_cpu_flags(flags); |
| return 0; |
| } |
| |
| int opt_codec_debug(const char *opt, const char *arg) |
| { |
| av_log_set_level(AV_LOG_DEBUG); |
| return opt_default(opt, arg); |
| } |
| |
| int opt_timelimit(const char *opt, const char *arg) |
| { |
| #if HAVE_SETRLIMIT |
| int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX); |
| struct rlimit rl = { lim, lim + 1 }; |
| if (setrlimit(RLIMIT_CPU, &rl)) |
| perror("setrlimit"); |
| #else |
| av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt); |
| #endif |
| return 0; |
| } |
| |
| void print_error(const char *filename, int err) |
| { |
| char errbuf[128]; |
| const char *errbuf_ptr = errbuf; |
| |
| if (av_strerror(err, errbuf, sizeof(errbuf)) < 0) |
| errbuf_ptr = strerror(AVUNERROR(err)); |
| av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr); |
| } |
| |
| static int warned_cfg = 0; |
| |
| #define INDENT 1 |
| #define SHOW_VERSION 2 |
| #define SHOW_CONFIG 4 |
| #define SHOW_COPYRIGHT 8 |
| |
| #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \ |
| if (CONFIG_##LIBNAME) { \ |
| const char *indent = flags & INDENT? " " : ""; \ |
| if (flags & SHOW_VERSION) { \ |
| unsigned int version = libname##_version(); \ |
| av_log(NULL, level, \ |
| "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \ |
| indent, #libname, \ |
| LIB##LIBNAME##_VERSION_MAJOR, \ |
| LIB##LIBNAME##_VERSION_MINOR, \ |
| LIB##LIBNAME##_VERSION_MICRO, \ |
| version >> 16, version >> 8 & 0xff, version & 0xff); \ |
| } \ |
| if (flags & SHOW_CONFIG) { \ |
| const char *cfg = libname##_configuration(); \ |
| if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \ |
| if (!warned_cfg) { \ |
| av_log(NULL, level, \ |
| "%sWARNING: library configuration mismatch\n", \ |
| indent); \ |
| warned_cfg = 1; \ |
| } \ |
| av_log(NULL, level, "%s%-11s configuration: %s\n", \ |
| indent, #libname, cfg); \ |
| } \ |
| } \ |
| } \ |
| |
| static void print_all_libs_info(int flags, int level) |
| { |
| PRINT_LIB_INFO(avutil, AVUTIL, flags, level); |
| PRINT_LIB_INFO(avcodec, AVCODEC, flags, level); |
| PRINT_LIB_INFO(avformat, AVFORMAT, flags, level); |
| PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level); |
| PRINT_LIB_INFO(avfilter, AVFILTER, flags, level); |
| // PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level); |
| PRINT_LIB_INFO(swscale, SWSCALE, flags, level); |
| PRINT_LIB_INFO(swresample,SWRESAMPLE, flags, level); |
| #if CONFIG_POSTPROC |
| PRINT_LIB_INFO(postproc, POSTPROC, flags, level); |
| #endif |
| } |
| |
| static void print_program_info(int flags, int level) |
| { |
| const char *indent = flags & INDENT? " " : ""; |
| |
| av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name); |
| if (flags & SHOW_COPYRIGHT) |
| av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers", |
| program_birth_year, this_year); |
| av_log(NULL, level, "\n"); |
| av_log(NULL, level, "%sbuilt on %s %s with %s %s\n", |
| indent, __DATE__, __TIME__, CC_TYPE, CC_VERSION); |
| av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent); |
| } |
| |
| void show_banner(int argc, char **argv, const OptionDef *options) |
| { |
| int idx = locate_option(argc, argv, options, "version"); |
| if (idx) |
| return; |
| |
| print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO); |
| print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO); |
| print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO); |
| } |
| |
| int opt_version(const char *opt, const char *arg) { |
| av_log_set_callback(log_callback_help); |
| print_program_info (0 , AV_LOG_INFO); |
| print_all_libs_info(SHOW_VERSION, AV_LOG_INFO); |
| return 0; |
| } |
| |
| int opt_license(const char *opt, const char *arg) |
| { |
| printf( |
| #if CONFIG_NONFREE |
| "This version of %s has nonfree parts compiled in.\n" |
| "Therefore it is not legally redistributable.\n", |
| program_name |
| #elif CONFIG_GPLV3 |
| "%s is free software; you can redistribute it and/or modify\n" |
| "it under the terms of the GNU General Public License as published by\n" |
| "the Free Software Foundation; either version 3 of the License, or\n" |
| "(at your option) any later version.\n" |
| "\n" |
| "%s is distributed in the hope that it will be useful,\n" |
| "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" |
| "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" |
| "GNU General Public License for more details.\n" |
| "\n" |
| "You should have received a copy of the GNU General Public License\n" |
| "along with %s. If not, see <http://www.gnu.org/licenses/>.\n", |
| program_name, program_name, program_name |
| #elif CONFIG_GPL |
| "%s is free software; you can redistribute it and/or modify\n" |
| "it under the terms of the GNU General Public License as published by\n" |
| "the Free Software Foundation; either version 2 of the License, or\n" |
| "(at your option) any later version.\n" |
| "\n" |
| "%s is distributed in the hope that it will be useful,\n" |
| "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" |
| "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" |
| "GNU General Public License for more details.\n" |
| "\n" |
| "You should have received a copy of the GNU General Public License\n" |
| "along with %s; if not, write to the Free Software\n" |
| "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n", |
| program_name, program_name, program_name |
| #elif CONFIG_LGPLV3 |
| "%s is free software; you can redistribute it and/or modify\n" |
| "it under the terms of the GNU Lesser General Public License as published by\n" |
| "the Free Software Foundation; either version 3 of the License, or\n" |
| "(at your option) any later version.\n" |
| "\n" |
| "%s is distributed in the hope that it will be useful,\n" |
| "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" |
| "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" |
| "GNU Lesser General Public License for more details.\n" |
| "\n" |
| "You should have received a copy of the GNU Lesser General Public License\n" |
| "along with %s. If not, see <http://www.gnu.org/licenses/>.\n", |
| program_name, program_name, program_name |
| #else |
| "%s is free software; you can redistribute it and/or\n" |
| "modify it under the terms of the GNU Lesser General Public\n" |
| "License as published by the Free Software Foundation; either\n" |
| "version 2.1 of the License, or (at your option) any later version.\n" |
| "\n" |
| "%s is distributed in the hope that it will be useful,\n" |
| "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" |
| "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n" |
| "Lesser General Public License for more details.\n" |
| "\n" |
| "You should have received a copy of the GNU Lesser General Public\n" |
| "License along with %s; if not, write to the Free Software\n" |
| "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n", |
| program_name, program_name, program_name |
| #endif |
| ); |
| return 0; |
| } |
| |
| int opt_formats(const char *opt, const char *arg) |
| { |
| AVInputFormat *ifmt = NULL; |
| AVOutputFormat *ofmt = NULL; |
| const char *last_name; |
| |
| printf("File formats:\n" |
| " D. = Demuxing supported\n" |
| " .E = Muxing supported\n" |
| " --\n"); |
| last_name = "000"; |
| for (;;) { |
| int decode = 0; |
| int encode = 0; |
| const char *name = NULL; |
| const char *long_name = NULL; |
| |
| while ((ofmt = av_oformat_next(ofmt))) { |
| if ((name == NULL || strcmp(ofmt->name, name) < 0) && |
| strcmp(ofmt->name, last_name) > 0) { |
| name = ofmt->name; |
| long_name = ofmt->long_name; |
| encode = 1; |
| } |
| } |
| while ((ifmt = av_iformat_next(ifmt))) { |
| if ((name == NULL || strcmp(ifmt->name, name) < 0) && |
| strcmp(ifmt->name, last_name) > 0) { |
| name = ifmt->name; |
| long_name = ifmt->long_name; |
| encode = 0; |
| } |
| if (name && strcmp(ifmt->name, name) == 0) |
| decode = 1; |
| } |
| if (name == NULL) |
| break; |
| last_name = name; |
| |
| printf(" %s%s %-15s %s\n", |
| decode ? "D" : " ", |
| encode ? "E" : " ", |
| name, |
| long_name ? long_name:" "); |
| } |
| return 0; |
| } |
| |
| static char get_media_type_char(enum AVMediaType type) |
| { |
| static const char map[AVMEDIA_TYPE_NB] = { |
| [AVMEDIA_TYPE_VIDEO] = 'V', |
| [AVMEDIA_TYPE_AUDIO] = 'A', |
| [AVMEDIA_TYPE_DATA] = 'D', |
| [AVMEDIA_TYPE_SUBTITLE] = 'S', |
| [AVMEDIA_TYPE_ATTACHMENT] = 'T', |
| }; |
| return type >= 0 && type < AVMEDIA_TYPE_NB && map[type] ? map[type] : '?'; |
| } |
| |
| int opt_codecs(const char *opt, const char *arg) |
| { |
| AVCodec *p = NULL, *p2; |
| const char *last_name; |
| printf("Codecs:\n" |
| " D..... = Decoding supported\n" |
| " .E.... = Encoding supported\n" |
| " ..V... = Video codec\n" |
| " ..A... = Audio codec\n" |
| " ..S... = Subtitle codec\n" |
| " ...S.. = Supports draw_horiz_band\n" |
| " ....D. = Supports direct rendering method 1\n" |
| " .....T = Supports weird frame truncation\n" |
| " ------\n"); |
| last_name= "000"; |
| for (;;) { |
| int decode = 0; |
| int encode = 0; |
| int cap = 0; |
| |
| p2 = NULL; |
| while ((p = av_codec_next(p))) { |
| if ((p2 == NULL || strcmp(p->name, p2->name) < 0) && |
| strcmp(p->name, last_name) > 0) { |
| p2 = p; |
| decode = encode = cap = 0; |
| } |
| if (p2 && strcmp(p->name, p2->name) == 0) { |
| if (av_codec_is_decoder(p)) |
| decode = 1; |
| if (av_codec_is_encoder(p)) |
| encode = 1; |
| cap |= p->capabilities; |
| } |
| } |
| if (p2 == NULL) |
| break; |
| last_name = p2->name; |
| |
| printf(" %s%s%c%s%s%s %-15s %s", |
| decode ? "D" : (/* p2->decoder ? "d" : */ " "), |
| encode ? "E" : " ", |
| get_media_type_char(p2->type), |
| cap & CODEC_CAP_DRAW_HORIZ_BAND ? "S" : " ", |
| cap & CODEC_CAP_DR1 ? "D" : " ", |
| cap & CODEC_CAP_TRUNCATED ? "T" : " ", |
| p2->name, |
| p2->long_name ? p2->long_name : ""); |
| #if 0 |
| if (p2->decoder && decode == 0) |
| printf(" use %s for decoding", p2->decoder->name); |
| #endif |
| printf("\n"); |
| } |
| printf("\n"); |
| printf("Note, the names of encoders and decoders do not always match, so there are\n" |
| "several cases where the above table shows encoder only or decoder only entries\n" |
| "even though both encoding and decoding are supported. For example, the h263\n" |
| "decoder corresponds to the h263 and h263p encoders, for file formats it is even\n" |
| "worse.\n"); |
| return 0; |
| } |
| |
| int opt_bsfs(const char *opt, const char *arg) |
| { |
| AVBitStreamFilter *bsf = NULL; |
| |
| printf("Bitstream filters:\n"); |
| while ((bsf = av_bitstream_filter_next(bsf))) |
| printf("%s\n", bsf->name); |
| printf("\n"); |
| return 0; |
| } |
| |
| int opt_protocols(const char *opt, const char *arg) |
| { |
| void *opaque = NULL; |
| const char *name; |
| |
| printf("Supported file protocols:\n" |
| "Input:\n"); |
| while ((name = avio_enum_protocols(&opaque, 0))) |
| printf("%s\n", name); |
| printf("Output:\n"); |
| while ((name = avio_enum_protocols(&opaque, 1))) |
| printf("%s\n", name); |
| return 0; |
| } |
| |
| int opt_filters(const char *opt, const char *arg) |
| { |
| AVFilter av_unused(**filter) = NULL; |
| char descr[64], *descr_cur; |
| int i, j; |
| const AVFilterPad *pad; |
| |
| printf("Filters:\n"); |
| #if CONFIG_AVFILTER |
| while ((filter = av_filter_next(filter)) && *filter) { |
| descr_cur = descr; |
| for (i = 0; i < 2; i++) { |
| if (i) { |
| *(descr_cur++) = '-'; |
| *(descr_cur++) = '>'; |
| } |
| pad = i ? (*filter)->outputs : (*filter)->inputs; |
| for (j = 0; pad[j].name; j++) { |
| if (descr_cur >= descr + sizeof(descr) - 4) |
| break; |
| *(descr_cur++) = get_media_type_char(pad[j].type); |
| } |
| if (!j) |
| *(descr_cur++) = '|'; |
| } |
| *descr_cur = 0; |
| printf("%-16s %-10s %s\n", (*filter)->name, descr, (*filter)->description); |
| } |
| #endif |
| return 0; |
| } |
| |
| int opt_pix_fmts(const char *opt, const char *arg) |
| { |
| enum PixelFormat pix_fmt; |
| |
| printf("Pixel formats:\n" |
| "I.... = Supported Input format for conversion\n" |
| ".O... = Supported Output format for conversion\n" |
| "..H.. = Hardware accelerated format\n" |
| "...P. = Paletted format\n" |
| "....B = Bitstream format\n" |
| "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n" |
| "-----\n"); |
| |
| #if !CONFIG_SWSCALE |
| # define sws_isSupportedInput(x) 0 |
| # define sws_isSupportedOutput(x) 0 |
| #endif |
| |
| for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++) { |
| const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[pix_fmt]; |
| if(!pix_desc->name) |
| continue; |
| printf("%c%c%c%c%c %-16s %d %2d\n", |
| sws_isSupportedInput (pix_fmt) ? 'I' : '.', |
| sws_isSupportedOutput(pix_fmt) ? 'O' : '.', |
| pix_desc->flags & PIX_FMT_HWACCEL ? 'H' : '.', |
| pix_desc->flags & PIX_FMT_PAL ? 'P' : '.', |
| pix_desc->flags & PIX_FMT_BITSTREAM ? 'B' : '.', |
| pix_desc->name, |
| pix_desc->nb_components, |
| av_get_bits_per_pixel(pix_desc)); |
| } |
| return 0; |
| } |
| |
| int show_sample_fmts(const char *opt, const char *arg) |
| { |
| int i; |
| char fmt_str[128]; |
| for (i = -1; i < AV_SAMPLE_FMT_NB; i++) |
| printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i)); |
| return 0; |
| } |
| |
| int read_yesno(void) |
| { |
| int c = getchar(); |
| int yesno = (toupper(c) == 'Y'); |
| |
| while (c != '\n' && c != EOF) |
| c = getchar(); |
| |
| return yesno; |
| } |
| |
| int cmdutils_read_file(const char *filename, char **bufptr, size_t *size) |
| { |
| int ret; |
| FILE *f = fopen(filename, "rb"); |
| |
| if (!f) { |
| av_log(NULL, AV_LOG_ERROR, "Cannot read file '%s': %s\n", filename, |
| strerror(errno)); |
| return AVERROR(errno); |
| } |
| fseek(f, 0, SEEK_END); |
| *size = ftell(f); |
| fseek(f, 0, SEEK_SET); |
| *bufptr = av_malloc(*size + 1); |
| if (!*bufptr) { |
| av_log(NULL, AV_LOG_ERROR, "Could not allocate file buffer\n"); |
| fclose(f); |
| return AVERROR(ENOMEM); |
| } |
| ret = fread(*bufptr, 1, *size, f); |
| if (ret < *size) { |
| av_free(*bufptr); |
| if (ferror(f)) { |
| av_log(NULL, AV_LOG_ERROR, "Error while reading file '%s': %s\n", |
| filename, strerror(errno)); |
| ret = AVERROR(errno); |
| } else |
| ret = AVERROR_EOF; |
| } else { |
| ret = 0; |
| (*bufptr)[*size++] = '\0'; |
| } |
| |
| fclose(f); |
| return ret; |
| } |
| |
| FILE *get_preset_file(char *filename, size_t filename_size, |
| const char *preset_name, int is_path, |
| const char *codec_name) |
| { |
| FILE *f = NULL; |
| int i; |
| const char *base[3] = { getenv("FFMPEG_DATADIR"), |
| getenv("HOME"), |
| FFMPEG_DATADIR, }; |
| |
| if (is_path) { |
| av_strlcpy(filename, preset_name, filename_size); |
| f = fopen(filename, "r"); |
| } else { |
| #ifdef _WIN32 |
| char datadir[MAX_PATH], *ls; |
| base[2] = NULL; |
| |
| if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1)) |
| { |
| for (ls = datadir; ls < datadir + strlen(datadir); ls++) |
| if (*ls == '\\') *ls = '/'; |
| |
| if (ls = strrchr(datadir, '/')) |
| { |
| *ls = 0; |
| strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir)); |
| base[2] = datadir; |
| } |
| } |
| #endif |
| for (i = 0; i < 3 && !f; i++) { |
| if (!base[i]) |
| continue; |
| snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i], |
| i != 1 ? "" : "/.ffmpeg", preset_name); |
| f = fopen(filename, "r"); |
| if (!f && codec_name) { |
| snprintf(filename, filename_size, |
| "%s%s/%s-%s.ffpreset", |
| base[i], i != 1 ? "" : "/.ffmpeg", codec_name, |
| preset_name); |
| f = fopen(filename, "r"); |
| } |
| } |
| } |
| |
| return f; |
| } |
| |
| int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec) |
| { |
| if (*spec <= '9' && *spec >= '0') /* opt:index */ |
| return strtol(spec, NULL, 0) == st->index; |
| else if (*spec == 'v' || *spec == 'a' || *spec == 's' || *spec == 'd' || |
| *spec == 't') { /* opt:[vasdt] */ |
| enum AVMediaType type; |
| |
| switch (*spec++) { |
| case 'v': type = AVMEDIA_TYPE_VIDEO; break; |
| case 'a': type = AVMEDIA_TYPE_AUDIO; break; |
| case 's': type = AVMEDIA_TYPE_SUBTITLE; break; |
| case 'd': type = AVMEDIA_TYPE_DATA; break; |
| case 't': type = AVMEDIA_TYPE_ATTACHMENT; break; |
| default: av_assert0(0); |
| } |
| if (type != st->codec->codec_type) |
| return 0; |
| if (*spec++ == ':') { /* possibly followed by :index */ |
| int i, index = strtol(spec, NULL, 0); |
| for (i = 0; i < s->nb_streams; i++) |
| if (s->streams[i]->codec->codec_type == type && index-- == 0) |
| return i == st->index; |
| return 0; |
| } |
| return 1; |
| } else if (*spec == 'p' && *(spec + 1) == ':') { |
| int prog_id, i, j; |
| char *endptr; |
| spec += 2; |
| prog_id = strtol(spec, &endptr, 0); |
| for (i = 0; i < s->nb_programs; i++) { |
| if (s->programs[i]->id != prog_id) |
| continue; |
| |
| if (*endptr++ == ':') { |
| int stream_idx = strtol(endptr, NULL, 0); |
| return stream_idx >= 0 && |
| stream_idx < s->programs[i]->nb_stream_indexes && |
| st->index == s->programs[i]->stream_index[stream_idx]; |
| } |
| |
| for (j = 0; j < s->programs[i]->nb_stream_indexes; j++) |
| if (st->index == s->programs[i]->stream_index[j]) |
| return 1; |
| } |
| return 0; |
| } else if (*spec == '#') { |
| int sid; |
| char *endptr; |
| sid = strtol(spec + 1, &endptr, 0); |
| if (!*endptr) |
| return st->id == sid; |
| } else if (!*spec) /* empty specifier, matches everything */ |
| return 1; |
| |
| av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec); |
| return AVERROR(EINVAL); |
| } |
| |
| AVDictionary *filter_codec_opts(AVDictionary *opts, AVCodec *codec, |
| AVFormatContext *s, AVStream *st) |
| { |
| AVDictionary *ret = NULL; |
| AVDictionaryEntry *t = NULL; |
| int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM |
| : AV_OPT_FLAG_DECODING_PARAM; |
| char prefix = 0; |
| const AVClass *cc = avcodec_get_class(); |
| |
| if (!codec) |
| return NULL; |
| |
| switch (codec->type) { |
| case AVMEDIA_TYPE_VIDEO: |
| prefix = 'v'; |
| flags |= AV_OPT_FLAG_VIDEO_PARAM; |
| break; |
| case AVMEDIA_TYPE_AUDIO: |
| prefix = 'a'; |
| flags |= AV_OPT_FLAG_AUDIO_PARAM; |
| break; |
| case AVMEDIA_TYPE_SUBTITLE: |
| prefix = 's'; |
| flags |= AV_OPT_FLAG_SUBTITLE_PARAM; |
| break; |
| } |
| |
| while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) { |
| char *p = strchr(t->key, ':'); |
| |
| /* check stream specification in opt name */ |
| if (p) |
| switch (check_stream_specifier(s, st, p + 1)) { |
| case 1: *p = 0; break; |
| case 0: continue; |
| default: return NULL; |
| } |
| |
| if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) || |
| (codec && codec->priv_class && |
| av_opt_find(&codec->priv_class, t->key, NULL, flags, |
| AV_OPT_SEARCH_FAKE_OBJ))) |
| av_dict_set(&ret, t->key, t->value, 0); |
| else if (t->key[0] == prefix && |
| av_opt_find(&cc, t->key + 1, NULL, flags, |
| AV_OPT_SEARCH_FAKE_OBJ)) |
| av_dict_set(&ret, t->key + 1, t->value, 0); |
| |
| if (p) |
| *p = ':'; |
| } |
| return ret; |
| } |
| |
| AVDictionary **setup_find_stream_info_opts(AVFormatContext *s, |
| AVDictionary *codec_opts) |
| { |
| int i; |
| AVDictionary **opts; |
| |
| if (!s->nb_streams) |
| return NULL; |
| opts = av_mallocz(s->nb_streams * sizeof(*opts)); |
| if (!opts) { |
| av_log(NULL, AV_LOG_ERROR, |
| "Could not alloc memory for stream options.\n"); |
| return NULL; |
| } |
| for (i = 0; i < s->nb_streams; i++) |
| opts[i] = filter_codec_opts(codec_opts, avcodec_find_decoder(s->streams[i]->codec->codec_id), |
| s, s->streams[i]); |
| return opts; |
| } |
| |
| void *grow_array(void *array, int elem_size, int *size, int new_size) |
| { |
| if (new_size >= INT_MAX / elem_size) { |
| av_log(NULL, AV_LOG_ERROR, "Array too big.\n"); |
| exit_program(1); |
| } |
| if (*size < new_size) { |
| uint8_t *tmp = av_realloc(array, new_size*elem_size); |
| if (!tmp) { |
| av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n"); |
| exit_program(1); |
| } |
| memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size); |
| *size = new_size; |
| return tmp; |
| } |
| return array; |
| } |