X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=cmdutils.c;h=291365501b54c4c45c020f87909f926f31d94ce3;hb=92db5083077a8b0f8e1050507671b456fd155125;hp=5ed70f07e416421cfd3ad6544388bdd7c481e706;hpb=2cb2d6f0f74569b3d196698a59530c3a7e20a406;p=ffmpeg diff --git a/cmdutils.c b/cmdutils.c index 5ed70f07e41..291365501b5 100644 --- a/cmdutils.c +++ b/cmdutils.c @@ -2,24 +2,25 @@ * Various utilities for command line tools * Copyright (c) 2000-2003 Fabrice Bellard * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * Libav 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, + * Libav 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 + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include +#include #include #include #include @@ -32,92 +33,317 @@ #include "libavformat/avformat.h" #include "libavfilter/avfilter.h" #include "libavdevice/avdevice.h" +#include "libavresample/avresample.h" #include "libswscale/swscale.h" -#include "libpostproc/postprocess.h" +#include "libavutil/avassert.h" #include "libavutil/avstring.h" -#include "libavcodec/opt.h" +#include "libavutil/mathematics.h" +#include "libavutil/imgutils.h" +#include "libavutil/parseutils.h" +#include "libavutil/pixdesc.h" +#include "libavutil/eval.h" +#include "libavutil/dict.h" +#include "libavutil/opt.h" +#include "libavutil/cpu.h" +#include "avversion.h" #include "cmdutils.h" -#include "version.h" #if CONFIG_NETWORK #include "libavformat/network.h" #endif +#if HAVE_SYS_RESOURCE_H +#include +#include +#endif -#undef exit - -const char **opt_names; -static int opt_name_count; -AVCodecContext *avcodec_opts[CODEC_TYPE_NB]; -AVFormatContext *avformat_opts; struct SwsContext *sws_opts; +AVDictionary *format_opts, *codec_opts, *resample_opts; + +static const int this_year = 2016; + +void init_opts(void) +{ +#if CONFIG_SWSCALE + sws_opts = sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC, + NULL, NULL, NULL); +#endif +} + +void uninit_opts(void) +{ +#if CONFIG_SWSCALE + sws_freeContext(sws_opts); + sws_opts = NULL; +#endif + av_dict_free(&format_opts); + av_dict_free(&codec_opts); + av_dict_free(&resample_opts); +} + +void log_callback_help(void *ptr, int level, const char *fmt, va_list vl) +{ + vfprintf(stdout, fmt, vl); +} -const int this_year = 2009; +static void (*program_exit)(int ret); -double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max) +void register_exit(void (*cb)(int ret)) +{ + program_exit = cb; +} + +void exit_program(int ret) +{ + if (program_exit) + program_exit(ret); + + exit(ret); +} + +double parse_number_or_die(const char *context, const char *numstr, int type, + double min, double max) { char *tail; const char *error; - double d = strtod(numstr, &tail); + double d = av_strtod(numstr, &tail); if (*tail) - error= "Expected number for %s but found: %s\n"; + 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"; + 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; - fprintf(stderr, error, context, numstr, min, max); - exit(1); + 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 parse_time_or_die(const char *context, const char *timestr, + int is_duration) { - int64_t us = parse_date(timestr, is_duration); - if (us == INT64_MIN) { - fprintf(stderr, "Invalid %s specification for %s: %s\n", - is_duration ? "duration" : "date", context, timestr); - exit(1); + 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) +void show_help_options(const OptionDef *options, const char *msg, int req_flags, + int rej_flags, int alt_flags) { const OptionDef *po; int first; first = 1; - for(po = options; po->name != NULL; po++) { + 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); + + if (((po->flags & req_flags) != req_flags) || + (alt_flags && !(po->flags & alt_flags)) || + (po->flags & rej_flags)) + continue; + + if (first) { + printf("%s\n", msg); + first = 0; + } + av_strlcpy(buf, po->name, sizeof(buf)); + if (po->argname) { + av_strlcat(buf, " ", sizeof(buf)); + av_strlcat(buf, po->argname, sizeof(buf)); } + printf("-%-17s %s\n", buf, po->help); } + printf("\n"); } -static const OptionDef* find_option(const OptionDef *po, const char *name){ - while (po->name != NULL) { - if (!strcmp(name, po->name)) +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) { + if (!strncmp(name, po->name, len) && strlen(po->name) == len) break; po++; } return po; } -void parse_options(int argc, char **argv, const OptionDef *options, - void (* parse_arg_function)(const char*)) +/* _WIN32 means using the windows libc - cygwin doesn't define that + * by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while + * it doesn't provide the actual command line via GetCommandLineW(). */ +#if HAVE_COMMANDLINETOARGVW && defined(_WIN32) +#include +#include +/* 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) { + 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 /* HAVE_COMMANDLINETOARGVW */ + +static int write_option(void *optctx, const OptionDef *po, const char *opt, + const char *arg) +{ + /* new-style options contain an offset into optctx, old-style address of + * a global var*/ + void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ? + (uint8_t *)optctx + po->u.off : po->u.dst_ptr; + int *dstcount; + + if (po->flags & OPT_SPEC) { + SpecifierOpt **so = dst; + char *p = strchr(opt, ':'); + char *str; + + dstcount = (int *)(so + 1); + *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1); + str = av_strdup(p ? p + 1 : ""); + if (!str) + return AVERROR(ENOMEM); + (*so)[*dstcount - 1].specifier = str; + dst = &(*so)[*dstcount - 1].u; + } + + if (po->flags & OPT_STRING) { + char *str; + str = av_strdup(arg); + av_freep(dst); + if (!str) + return AVERROR(ENOMEM); + *(char **)dst = str; + } else if (po->flags & OPT_BOOL || 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->u.func_arg(optctx, 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 0; +} + +int parse_option(void *optctx, const char *opt, const char *arg, + const OptionDef *options) { - const char *opt, *arg; - int optindex, handleoptions=1; const OptionDef *po; + int ret; + + 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))) + arg = "0"; + } else if (po->flags & OPT_BOOL) + arg = "1"; + + 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); + } + + ret = write_option(optctx, po, opt, arg); + if (ret < 0) + return ret; + + 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; @@ -125,103 +351,369 @@ void parse_options(int argc, char **argv, const OptionDef *options, opt = argv[optindex++]; if (handleoptions && opt[0] == '-' && opt[1] != '\0') { - int bool_val = 1; if (opt[1] == '-' && opt[2] == '\0') { handleoptions = 0; continue; } - po= find_option(options, opt + 1); - if (!po->name && opt[1] == 'n' && opt[2] == 'o') { - /* handle 'no' bool option */ - po = find_option(options, opt + 3); - if (!(po->name && (po->flags & OPT_BOOL))) - goto unknown_opt; - bool_val = 0; - } - if (!po->name) - po= find_option(options, "default"); - if (!po->name) { -unknown_opt: - fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], opt); - exit(1); - } - arg = NULL; - if (po->flags & HAS_ARG) { - arg = argv[optindex++]; - if (!arg) { - fprintf(stderr, "%s: missing argument for option '%s'\n", argv[0], opt); - exit(1); - } - } - if (po->flags & OPT_STRING) { - char *str; - str = av_strdup(arg); - *po->u.str_arg = str; - } else if (po->flags & OPT_BOOL) { - *po->u.int_arg = bool_val; - } else if (po->flags & OPT_INT) { - *po->u.int_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT_MIN, INT_MAX); - } else if (po->flags & OPT_INT64) { - *po->u.int64_arg = parse_number_or_die(opt+1, arg, OPT_INT64, INT64_MIN, INT64_MAX); - } else if (po->flags & OPT_FLOAT) { - *po->u.float_arg = parse_number_or_die(opt+1, arg, OPT_FLOAT, -1.0/0.0, 1.0/0.0); - } else if (po->flags & OPT_FUNC2) { - if(po->u.func2_arg(opt+1, arg)<0) - goto unknown_opt; - } else { - po->u.func_arg(arg); - } - if(po->flags & OPT_EXIT) - exit(0); + opt++; + + if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0) + exit_program(1); + optindex += ret; } else { if (parse_arg_function) - parse_arg_function(opt); + parse_arg_function(optctx, opt); } } } -int opt_default(const char *opt, const char *arg){ - int type; - int ret= 0; - const AVOption *o= NULL; - int opt_types[]={AV_OPT_FLAG_VIDEO_PARAM, AV_OPT_FLAG_AUDIO_PARAM, 0, AV_OPT_FLAG_SUBTITLE_PARAM, 0}; +int parse_optgroup(void *optctx, OptionGroup *g) +{ + int i, ret; + + av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n", + g->group_def->name, g->arg); + + for (i = 0; i < g->nb_opts; i++) { + Option *o = &g->opts[i]; + + if (g->group_def->flags && + !(g->group_def->flags & o->opt->flags)) { + av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to " + "%s %s -- you are trying to apply an input option to an " + "output file or vice versa. Move this option before the " + "file it belongs to.\n", o->key, o->opt->help, + g->group_def->name, g->arg); + return AVERROR(EINVAL); + } + + av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n", + o->key, o->opt->help, o->val); - for(type=0; type= 0; type++){ - const AVOption *o2 = av_find_opt(avcodec_opts[0], opt, NULL, opt_types[type], opt_types[type]); - if(o2) - ret = av_set_string3(avcodec_opts[type], opt, arg, 1, &o); + ret = write_option(optctx, o->opt, o->key, o->val); + if (ret < 0) + return ret; } - if(!o) - ret = av_set_string3(avformat_opts, opt, arg, 1, &o); - if(!o) - ret = av_set_string3(sws_opts, opt, arg, 1, &o); - if(!o){ - if(opt[0] == 'a') - ret = av_set_string3(avcodec_opts[CODEC_TYPE_AUDIO], opt+1, arg, 1, &o); - else if(opt[0] == 'v') - ret = av_set_string3(avcodec_opts[CODEC_TYPE_VIDEO], opt+1, arg, 1, &o); - else if(opt[0] == 's') - ret = av_set_string3(avcodec_opts[CODEC_TYPE_SUBTITLE], opt+1, arg, 1, &o); + + av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n"); + + return 0; +} + +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->name || po->flags & HAS_ARG) + i++; } - if (o && ret < 0) { - fprintf(stderr, "Invalid value '%s' for option '%s'\n", arg, opt); - exit(1); + return 0; +} + +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(NULL, "loglevel", argv[idx + 1]); +} + +#define FLAGS (o->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0 +int opt_default(void *optctx, const char *opt, const char *arg) +{ + const AVOption *o; + char opt_stripped[128]; + const char *p; + const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class(); +#if CONFIG_AVRESAMPLE + const AVClass *rc = avresample_get_class(); +#endif +#if CONFIG_SWSCALE + const AVClass *sc = sws_get_class(); +#endif + + if (!(p = strchr(opt, ':'))) + p = opt + strlen(opt); + av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1)); + + if ((o = 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') && + (o = av_opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) + av_dict_set(&codec_opts, opt, arg, FLAGS); + else if ((o = av_opt_find(&fc, opt, NULL, 0, + AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) + av_dict_set(&format_opts, opt, arg, FLAGS); +#if CONFIG_AVRESAMPLE + else if ((o = av_opt_find(&rc, opt, NULL, 0, + AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) + av_dict_set(&resample_opts, opt, arg, FLAGS); +#endif +#if CONFIG_SWSCALE + else if ((o = 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; + } } - if(!o) - return -1; +#endif + + if (o) + return 0; + return AVERROR_OPTION_NOT_FOUND; +} + +/* + * Check whether given option is a group separator. + * + * @return index of the group definition that matched or -1 if none + */ +static int match_group_separator(const OptionGroupDef *groups, int nb_groups, + const char *opt) +{ + int i; + + for (i = 0; i < nb_groups; i++) { + const OptionGroupDef *p = &groups[i]; + if (p->sep && !strcmp(p->sep, opt)) + return i; + } + + return -1; +} + +/* + * Finish parsing an option group. + * + * @param group_idx which group definition should this group belong to + * @param arg argument of the group delimiting option + */ +static void finish_group(OptionParseContext *octx, int group_idx, + const char *arg) +{ + OptionGroupList *l = &octx->groups[group_idx]; + OptionGroup *g; + + GROW_ARRAY(l->groups, l->nb_groups); + g = &l->groups[l->nb_groups - 1]; + + *g = octx->cur_group; + g->arg = arg; + g->group_def = l->group_def; +#if CONFIG_SWSCALE + g->sws_opts = sws_opts; +#endif + g->codec_opts = codec_opts; + g->format_opts = format_opts; + g->resample_opts = resample_opts; + + codec_opts = NULL; + format_opts = NULL; + resample_opts = NULL; +#if CONFIG_SWSCALE + sws_opts = NULL; +#endif + init_opts(); + + memset(&octx->cur_group, 0, sizeof(octx->cur_group)); +} + +/* + * Add an option instance to currently parsed group. + */ +static void add_opt(OptionParseContext *octx, const OptionDef *opt, + const char *key, const char *val) +{ + int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET)); + OptionGroup *g = global ? &octx->global_opts : &octx->cur_group; + + GROW_ARRAY(g->opts, g->nb_opts); + g->opts[g->nb_opts - 1].opt = opt; + g->opts[g->nb_opts - 1].key = key; + g->opts[g->nb_opts - 1].val = val; +} + +static void init_parse_context(OptionParseContext *octx, + const OptionGroupDef *groups, int nb_groups) +{ + static const OptionGroupDef global_group = { "global" }; + int i; + + memset(octx, 0, sizeof(*octx)); + + octx->nb_groups = nb_groups; + octx->groups = av_mallocz(sizeof(*octx->groups) * octx->nb_groups); + if (!octx->groups) + exit_program(1); + + for (i = 0; i < octx->nb_groups; i++) + octx->groups[i].group_def = &groups[i]; + + octx->global_opts.group_def = &global_group; + octx->global_opts.arg = ""; + + init_opts(); +} + +void uninit_parse_context(OptionParseContext *octx) +{ + int i, j; -// av_log(NULL, AV_LOG_ERROR, "%s:%s: %f 0x%0X\n", opt, arg, av_get_double(avcodec_opts, opt, NULL), (int)av_get_int(avcodec_opts, opt, NULL)); + for (i = 0; i < octx->nb_groups; i++) { + OptionGroupList *l = &octx->groups[i]; - //FIXME we should always use avcodec_opts, ... for storing options so there will not be any need to keep track of what i set over this - opt_names= av_realloc(opt_names, sizeof(void*)*(opt_name_count+1)); - opt_names[opt_name_count++]= o->name; + for (j = 0; j < l->nb_groups; j++) { + av_freep(&l->groups[j].opts); + av_dict_free(&l->groups[j].codec_opts); + av_dict_free(&l->groups[j].format_opts); + av_dict_free(&l->groups[j].resample_opts); +#if CONFIG_SWSCALE + sws_freeContext(l->groups[j].sws_opts); +#endif + } + av_freep(&l->groups); + } + av_freep(&octx->groups); + + av_freep(&octx->cur_group.opts); + av_freep(&octx->global_opts.opts); + + uninit_opts(); +} + +int split_commandline(OptionParseContext *octx, int argc, char *argv[], + const OptionDef *options, + const OptionGroupDef *groups, int nb_groups) +{ + int optindex = 1; + + /* perform system-dependent conversions for arguments list */ + prepare_app_arguments(&argc, &argv); - if(avcodec_opts[0]->debug || avformat_opts->debug) - av_log_set_level(AV_LOG_DEBUG); + init_parse_context(octx, groups, nb_groups); + av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n"); + + while (optindex < argc) { + const char *opt = argv[optindex++], *arg; + const OptionDef *po; + int ret; + + av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt); + + /* unnamed group separators, e.g. output filename */ + if (opt[0] != '-' || !opt[1]) { + finish_group(octx, 0, opt); + av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name); + continue; + } + opt++; + +#define GET_ARG(arg) \ +do { \ + arg = argv[optindex++]; \ + if (!arg) { \ + av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\ + return AVERROR(EINVAL); \ + } \ +} while (0) + + /* named group separators, e.g. -i */ + if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) { + GET_ARG(arg); + finish_group(octx, ret, arg); + av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n", + groups[ret].name, arg); + continue; + } + + /* normal options */ + po = find_option(options, opt); + if (po->name) { + if (po->flags & OPT_EXIT) { + /* optional argument, e.g. -h */ + arg = argv[optindex++]; + } else if (po->flags & HAS_ARG) { + GET_ARG(arg); + } else { + arg = "1"; + } + + add_opt(octx, po, opt, arg); + av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with " + "argument '%s'.\n", po->name, po->help, arg); + continue; + } + + /* AVOptions */ + if (argv[optindex]) { + ret = opt_default(NULL, opt, argv[optindex]); + if (ret >= 0) { + av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with " + "argument '%s'.\n", opt, argv[optindex]); + optindex++; + continue; + } else if (ret != AVERROR_OPTION_NOT_FOUND) { + av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' " + "with argument '%s'.\n", opt, argv[optindex]); + return ret; + } + } + + /* boolean -nofoo options */ + if (opt[0] == 'n' && opt[1] == 'o' && + (po = find_option(options, opt + 2)) && + po->name && po->flags & OPT_BOOL) { + add_opt(octx, po, opt, "0"); + av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with " + "argument 0.\n", po->name, po->help); + continue; + } + + av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt); + return AVERROR_OPTION_NOT_FOUND; + } + + if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts) + av_log(NULL, AV_LOG_WARNING, "Trailing options were found on the " + "commandline.\n"); + + av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n"); + + return 0; +} + +int opt_cpuflags(void *optctx, const char *opt, const char *arg) +{ + int flags = av_parse_cpu_flags(arg); + + if (flags < 0) + return flags; + + av_set_cpu_flags_mask(flags); return 0; } -int opt_loglevel(const char *opt, const char *arg) +int opt_loglevel(void *optctx, const char *opt, const char *arg) { const struct { const char *name; int level; } log_levels[] = { { "quiet" , AV_LOG_QUIET }, @@ -232,6 +724,7 @@ int opt_loglevel(const char *opt, const char *arg) { "info" , AV_LOG_INFO }, { "verbose", AV_LOG_VERBOSE }, { "debug" , AV_LOG_DEBUG }, + { "trace" , AV_LOG_TRACE }, }; char *tail; int level; @@ -246,105 +739,106 @@ int opt_loglevel(const char *opt, const char *arg) level = strtol(arg, &tail, 10); if (*tail) { - fprintf(stderr, "Invalid loglevel \"%s\". " - "Possible levels are numbers or:\n", arg); + 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++) - fprintf(stderr, "\"%s\"\n", log_levels[i].name); - exit(1); + av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name); + exit_program(1); } av_log_set_level(level); return 0; } -void set_context_opts(void *ctx, void *opts_ctx, int flags) +int opt_timelimit(void *optctx, const char *opt, const char *arg) { - int i; - for(i=0; iflags & flags) == flags)) - av_set_string3(ctx, opt_names[i], str, 1, NULL); - } +#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) { - switch(err) { - case AVERROR_NUMEXPECTED: - fprintf(stderr, "%s: Incorrect image filename syntax.\n" - "Use '%%d' to specify the image number:\n" - " for img1.jpg, img2.jpg, ..., use 'img%%d.jpg';\n" - " for img001.jpg, img002.jpg, ..., use 'img%%03d.jpg'.\n", - filename); - break; - case AVERROR_INVALIDDATA: - fprintf(stderr, "%s: Error while parsing header\n", filename); - break; - case AVERROR_NOFMT: - fprintf(stderr, "%s: Unknown format\n", filename); - break; - case AVERROR(EIO): - fprintf(stderr, "%s: I/O error occurred\n" - "Usually that means that input file is truncated and/or corrupted.\n", - filename); - break; - case AVERROR(ENOMEM): - fprintf(stderr, "%s: memory allocation error occurred\n", filename); - break; - case AVERROR(ENOENT): - fprintf(stderr, "%s: no such file or directory\n", filename); - break; -#if CONFIG_NETWORK - case AVERROR(FF_NETERROR(EPROTONOSUPPORT)): - fprintf(stderr, "%s: Unsupported network protocol\n", filename); - break; -#endif - default: - fprintf(stderr, "%s: Error while opening file\n", filename); - break; - } + 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); } -#define PRINT_LIB_VERSION(outstream,libname,LIBNAME,indent) \ - version= libname##_version(); \ - fprintf(outstream, "%slib%-10s %2d.%2d.%2d / %2d.%2d.%2d\n", indent? " " : "", #libname, \ - LIB##LIBNAME##_VERSION_MAJOR, LIB##LIBNAME##_VERSION_MINOR, LIB##LIBNAME##_VERSION_MICRO, \ - version >> 16, version >> 8 & 0xff, version & 0xff); +static int warned_cfg = 0; + +#define INDENT 1 +#define SHOW_VERSION 2 +#define SHOW_CONFIG 4 -static void print_all_lib_versions(FILE* outstream, int indent) +#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%-10s %2d.%3d.%2d / %2d.%3d.%2d\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(LIBAV_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) { - unsigned int version; - PRINT_LIB_VERSION(outstream, avutil, AVUTIL, indent); - PRINT_LIB_VERSION(outstream, avcodec, AVCODEC, indent); - PRINT_LIB_VERSION(outstream, avformat, AVFORMAT, indent); - PRINT_LIB_VERSION(outstream, avdevice, AVDEVICE, indent); -#if CONFIG_AVFILTER - PRINT_LIB_VERSION(outstream, avfilter, AVFILTER, indent); -#endif - PRINT_LIB_VERSION(outstream, swscale, SWSCALE, indent); -#if CONFIG_POSTPROC - PRINT_LIB_VERSION(outstream, postproc, POSTPROC, indent); -#endif + 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); } void show_banner(void) { - fprintf(stderr, "%s version " FFMPEG_VERSION ", Copyright (c) %d-%d Fabrice Bellard, et al.\n", - program_name, program_birth_year, this_year); - fprintf(stderr, " built on %s %s with %s %s\n", - __DATE__, __TIME__, CC_TYPE, CC_VERSION); - fprintf(stderr, " configuration: " FFMPEG_CONFIGURATION "\n"); - print_all_lib_versions(stderr, 1); + av_log(NULL, AV_LOG_INFO, + "%s version " LIBAV_VERSION ", Copyright (c) %d-%d the Libav developers\n", + program_name, program_birth_year, this_year); + av_log(NULL, AV_LOG_INFO, " built on %s %s with %s\n", + __DATE__, __TIME__, CC_IDENT); + av_log(NULL, AV_LOG_VERBOSE, " configuration: " LIBAV_CONFIGURATION "\n"); + print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_VERBOSE); + print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_VERBOSE); } -void show_version(void) { - printf("%s " FFMPEG_VERSION "\n", program_name); - print_all_lib_versions(stdout, 0); +int show_version(void *optctx, const char *opt, const char *arg) +{ + av_log_set_callback(log_callback_help); + printf("%s " LIBAV_VERSION "\n", program_name); + print_all_libs_info(SHOW_VERSION, AV_LOG_INFO); + + return 0; } -void show_license(void) +int show_license(void *optctx, const char *opt, const char *arg) { printf( #if CONFIG_NONFREE @@ -411,162 +905,798 @@ void show_license(void) program_name, program_name, program_name #endif ); + + return 0; } -void show_formats(void) +int show_formats(void *optctx, const char *opt, const char *arg) { - AVInputFormat *ifmt=NULL; - AVOutputFormat *ofmt=NULL; + 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; + 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 || 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; + while ((ifmt = av_iformat_next(ifmt))) { + if ((!name || 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 && strcmp(ifmt->name, name) == 0) + decode = 1; } - if(name==NULL) + if (!name) break; - last_name= name; + last_name = name; - printf( - " %s%s %-15s %s\n", - decode ? "D":" ", - encode ? "E":" ", - name, + printf(" %s%s %-15s %s\n", + decode ? "D" : " ", + encode ? "E" : " ", + name, long_name ? long_name:" "); } + return 0; } -void show_codecs(void) +#define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \ + if (codec->field) { \ + const type *p = c->field; \ + \ + printf(" Supported " list_name ":"); \ + while (*p != term) { \ + get_name(*p); \ + printf(" %s", name); \ + p++; \ + } \ + printf("\n"); \ + } \ + +static void print_codec(const AVCodec *c) { - 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; - const char *type_str; - - 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; + int encoder = av_codec_is_encoder(c); + + printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name, + c->long_name ? c->long_name : ""); + + printf(" General capabilities: "); + if (c->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND) + printf("horizband "); + if (c->capabilities & AV_CODEC_CAP_DR1) + printf("dr1 "); + if (c->capabilities & AV_CODEC_CAP_TRUNCATED) + printf("trunc "); + if (c->capabilities & AV_CODEC_CAP_DELAY) + printf("delay "); + if (c->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME) + printf("small "); + if (c->capabilities & AV_CODEC_CAP_SUBFRAMES) + printf("subframes "); + if (c->capabilities & AV_CODEC_CAP_EXPERIMENTAL) + printf("exp "); + if (c->capabilities & AV_CODEC_CAP_CHANNEL_CONF) + printf("chconf "); + if (c->capabilities & AV_CODEC_CAP_PARAM_CHANGE) + printf("paramchange "); + if (c->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE) + printf("variable "); + if (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS | + AV_CODEC_CAP_SLICE_THREADS | + AV_CODEC_CAP_AUTO_THREADS)) + printf("threads "); + if (!c->capabilities) + printf("none"); + printf("\n"); + + if (c->type == AVMEDIA_TYPE_VIDEO) { + printf(" Threading capabilities: "); + switch (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS | + AV_CODEC_CAP_SLICE_THREADS | + AV_CODEC_CAP_AUTO_THREADS)) { + case AV_CODEC_CAP_FRAME_THREADS | + AV_CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break; + case AV_CODEC_CAP_FRAME_THREADS: printf("frame"); break; + case AV_CODEC_CAP_SLICE_THREADS: printf("slice"); break; + case AV_CODEC_CAP_AUTO_THREADS : printf("auto"); break; + default: printf("none"); break; + } + printf("\n"); + } + + if (c->supported_framerates) { + const AVRational *fps = c->supported_framerates; + + printf(" Supported framerates:"); + while (fps->num) { + printf(" %d/%d", fps->num, fps->den); + fps++; + } + printf("\n"); + } + PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats", + AV_PIX_FMT_NONE, GET_PIX_FMT_NAME); + PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0, + GET_SAMPLE_RATE_NAME); + PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats", + AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME); + PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts", + 0, GET_CH_LAYOUT_DESC); + + if (c->priv_class) { + show_help_children(c->priv_class, + AV_OPT_FLAG_ENCODING_PARAM | + AV_OPT_FLAG_DECODING_PARAM); + } +} + +static char get_media_type_char(enum AVMediaType type) +{ + switch (type) { + case AVMEDIA_TYPE_VIDEO: return 'V'; + case AVMEDIA_TYPE_AUDIO: return 'A'; + case AVMEDIA_TYPE_SUBTITLE: return 'S'; + default: return '?'; + } +} + +static const AVCodec *next_codec_for_id(enum AVCodecID id, const AVCodec *prev, + int encoder) +{ + while ((prev = av_codec_next(prev))) { + if (prev->id == id && + (encoder ? av_codec_is_encoder(prev) : av_codec_is_decoder(prev))) + return prev; + } + return NULL; +} + +static void print_codecs_for_id(enum AVCodecID id, int encoder) +{ + const AVCodec *codec = NULL; + + printf(" (%s: ", encoder ? "encoders" : "decoders"); + + while ((codec = next_codec_for_id(id, codec, encoder))) + printf("%s ", codec->name); + + printf(")"); +} + +int show_codecs(void *optctx, const char *opt, const char *arg) +{ + const AVCodecDescriptor *desc = NULL; + + printf("Codecs:\n" + " D..... = Decoding supported\n" + " .E.... = Encoding supported\n" + " ..V... = Video codec\n" + " ..A... = Audio codec\n" + " ..S... = Subtitle codec\n" + " ...I.. = Intra frame-only codec\n" + " ....L. = Lossy compression\n" + " .....S = Lossless compression\n" + " -------\n"); + while ((desc = avcodec_descriptor_next(desc))) { + const AVCodec *codec = NULL; + + printf(avcodec_find_decoder(desc->id) ? "D" : "."); + printf(avcodec_find_encoder(desc->id) ? "E" : "."); + + printf("%c", get_media_type_char(desc->type)); + printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : "."); + printf((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : "."); + printf((desc->props & AV_CODEC_PROP_LOSSLESS) ? "S" : "."); + + printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : ""); + + /* print decoders/encoders when there's more than one or their + * names are different from codec name */ + while ((codec = next_codec_for_id(desc->id, codec, 0))) { + if (strcmp(codec->name, desc->name)) { + print_codecs_for_id(desc->id, 0); + break; } - if(p2 && strcmp(p->name, p2->name)==0){ - if(p->decode) decode=1; - if(p->encode) encode=1; - cap |= p->capabilities; + } + codec = NULL; + while ((codec = next_codec_for_id(desc->id, codec, 1))) { + if (strcmp(codec->name, desc->name)) { + print_codecs_for_id(desc->id, 1); + break; } } - if(p2==NULL) - break; - last_name= p2->name; - switch(p2->type) { - case CODEC_TYPE_VIDEO: - type_str = "V"; - break; - case CODEC_TYPE_AUDIO: - type_str = "A"; - break; - case CODEC_TYPE_SUBTITLE: - type_str = "S"; - break; - default: - type_str = "?"; - break; - } - printf( - " %s%s%s%s%s%s %-15s %s", - decode ? "D": (/*p2->decoder ? "d":*/" "), - encode ? "E":" ", - type_str, - 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(p2->decoder && decode==0) - printf(" use %s for decoding", p2->decoder->name);*/ 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; +} + +static void print_codecs(int encoder) +{ + const AVCodecDescriptor *desc = NULL; + + printf("%s:\n" + " V... = Video\n" + " A... = Audio\n" + " S... = Subtitle\n" + " .F.. = Frame-level multithreading\n" + " ..S. = Slice-level multithreading\n" + " ...X = Codec is experimental\n" + " ---\n", + encoder ? "Encoders" : "Decoders"); + while ((desc = avcodec_descriptor_next(desc))) { + const AVCodec *codec = NULL; + + while ((codec = next_codec_for_id(desc->id, codec, encoder))) { + printf("%c", get_media_type_char(desc->type)); + printf((codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? "F" : "."); + printf((codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? "S" : "."); + printf((codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) ? "X" : "."); + + printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : ""); + if (strcmp(codec->name, desc->name)) + printf(" (codec %s)", desc->name); + + printf("\n"); + } + } +} + +int show_decoders(void *optctx, const char *opt, const char *arg) +{ + print_codecs(0); + return 0; } -void show_bsfs(void) +int show_encoders(void *optctx, const char *opt, const char *arg) { - AVBitStreamFilter *bsf=NULL; + print_codecs(1); + return 0; +} + +int show_bsfs(void *optctx, const char *opt, const char *arg) +{ + const AVBitStreamFilter *bsf = NULL; + void *opaque = NULL; printf("Bitstream filters:\n"); - while((bsf = av_bitstream_filter_next(bsf))) + while ((bsf = av_bsf_next(&opaque))) printf("%s\n", bsf->name); printf("\n"); + return 0; } -void show_protocols(void) +int show_protocols(void *optctx, const char *opt, const char *arg) { - URLProtocol *up=NULL; + void *opaque = NULL; + const char *name; - printf("Supported file protocols:\n"); - while((up = av_protocol_next(up))) - printf("%s\n", up->name); - printf("\n"); + 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 show_filters(void *optctx, const char *opt, const char *arg) +{ +#if CONFIG_AVFILTER + const AVFilter *filter = NULL; + + printf("Filters:\n"); + while ((filter = avfilter_next(filter))) + printf("%-16s %s\n", filter->name, filter->description); +#else + printf("No filters available: libavfilter disabled\n"); +#endif + return 0; +} + +int show_pix_fmts(void *optctx, const char *opt, const char *arg) +{ + const AVPixFmtDescriptor *pix_desc = NULL; + + 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 + + while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) { + enum AVPixelFormat pix_fmt = av_pix_fmt_desc_get_id(pix_desc); + printf("%c%c%c%c%c %-16s %d %2d\n", + sws_isSupportedInput (pix_fmt) ? 'I' : '.', + sws_isSupportedOutput(pix_fmt) ? 'O' : '.', + pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? 'H' : '.', + pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? 'P' : '.', + pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.', + pix_desc->name, + pix_desc->nb_components, + av_get_bits_per_pixel(pix_desc)); + } + return 0; +} + +int show_sample_fmts(void *optctx, 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; +} + +static void show_help_codec(const char *name, int encoder) +{ + const AVCodecDescriptor *desc; + const AVCodec *codec; + + if (!name) { + av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n"); + return; + } + + codec = encoder ? avcodec_find_encoder_by_name(name) : + avcodec_find_decoder_by_name(name); + + if (codec) + print_codec(codec); + else if ((desc = avcodec_descriptor_get_by_name(name))) { + int printed = 0; + + while ((codec = next_codec_for_id(desc->id, codec, encoder))) { + printed = 1; + print_codec(codec); + } + + if (!printed) { + av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to Libav, " + "but no %s for it are available. Libav might need to be " + "recompiled with additional external libraries.\n", + name, encoder ? "encoders" : "decoders"); + } + } else { + av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by Libav.\n", + name); + } +} + +static void show_help_demuxer(const char *name) +{ + const AVInputFormat *fmt = av_find_input_format(name); + + if (!fmt) { + av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name); + return; + } + + printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name); + + if (fmt->extensions) + printf(" Common extensions: %s.\n", fmt->extensions); - printf("Frame size, frame rate abbreviations:\n ntsc pal qntsc qpal sntsc spal film ntsc-film sqcif qcif cif 4cif\n"); + if (fmt->priv_class) + show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM); +} + +static void show_help_muxer(const char *name) +{ + const AVCodecDescriptor *desc; + const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL); + + if (!fmt) { + av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name); + return; + } + + printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name); + + if (fmt->extensions) + printf(" Common extensions: %s.\n", fmt->extensions); + if (fmt->mime_type) + printf(" Mime type: %s.\n", fmt->mime_type); + if (fmt->video_codec != AV_CODEC_ID_NONE && + (desc = avcodec_descriptor_get(fmt->video_codec))) { + printf(" Default video codec: %s.\n", desc->name); + } + if (fmt->audio_codec != AV_CODEC_ID_NONE && + (desc = avcodec_descriptor_get(fmt->audio_codec))) { + printf(" Default audio codec: %s.\n", desc->name); + } + if (fmt->subtitle_codec != AV_CODEC_ID_NONE && + (desc = avcodec_descriptor_get(fmt->subtitle_codec))) { + printf(" Default subtitle codec: %s.\n", desc->name); + } + + if (fmt->priv_class) + show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM); +} + +#if CONFIG_AVFILTER +static void show_help_filter(const char *name) +{ + const AVFilter *f = avfilter_get_by_name(name); + int i, count; + + if (!name) { + av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n"); + return; + } else if (!f) { + av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name); + return; + } + + printf("Filter %s [%s]:\n", f->name, f->description); + + if (f->flags & AVFILTER_FLAG_SLICE_THREADS) + printf(" slice threading supported\n"); + + printf(" Inputs:\n"); + count = avfilter_pad_count(f->inputs); + for (i = 0; i < count; i++) { + printf(" %d %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i), + media_type_string(avfilter_pad_get_type(f->inputs, i))); + } + if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS) + printf(" dynamic (depending on the options)\n"); + + printf(" Outputs:\n"); + count = avfilter_pad_count(f->outputs); + for (i = 0; i < count; i++) { + printf(" %d %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i), + media_type_string(avfilter_pad_get_type(f->outputs, i))); + } + if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS) + printf(" dynamic (depending on the options)\n"); + + if (f->priv_class) + show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | + AV_OPT_FLAG_AUDIO_PARAM); +} +#endif + +int show_help(void *optctx, const char *opt, const char *arg) +{ + char *topic, *par; + av_log_set_callback(log_callback_help); + + topic = av_strdup(arg ? arg : ""); + if (!topic) + return AVERROR(ENOMEM); + par = strchr(topic, '='); + if (par) + *par++ = 0; + + if (!*topic) { + show_help_default(topic, par); + } else if (!strcmp(topic, "decoder")) { + show_help_codec(par, 0); + } else if (!strcmp(topic, "encoder")) { + show_help_codec(par, 1); + } else if (!strcmp(topic, "demuxer")) { + show_help_demuxer(par); + } else if (!strcmp(topic, "muxer")) { + show_help_muxer(par); +#if CONFIG_AVFILTER + } else if (!strcmp(topic, "filter")) { + show_help_filter(par); +#endif + } else { + show_help_default(topic, par); + } + + av_freep(&topic); + return 0; } int read_yesno(void) { int c = getchar(); - int yesno = (toupper(c) == 'Y'); + int yesno = (av_toupper(c) == 'Y'); while (c != '\n' && c != EOF) c = getchar(); return yesno; } + +void init_pts_correction(PtsCorrectionContext *ctx) +{ + ctx->num_faulty_pts = ctx->num_faulty_dts = 0; + ctx->last_pts = ctx->last_dts = INT64_MIN; +} + +int64_t guess_correct_pts(PtsCorrectionContext *ctx, int64_t reordered_pts, + int64_t dts) +{ + int64_t pts = AV_NOPTS_VALUE; + + if (dts != AV_NOPTS_VALUE) { + ctx->num_faulty_dts += dts <= ctx->last_dts; + ctx->last_dts = dts; + } + if (reordered_pts != AV_NOPTS_VALUE) { + ctx->num_faulty_pts += reordered_pts <= ctx->last_pts; + ctx->last_pts = reordered_pts; + } + if ((ctx->num_faulty_pts<=ctx->num_faulty_dts || dts == AV_NOPTS_VALUE) + && reordered_pts != AV_NOPTS_VALUE) + pts = reordered_pts; + else + pts = dts; + + return pts; +} + +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("AVCONV_DATADIR"), + getenv("HOME"), + AVCONV_DATADIR, }; + + if (is_path) { + av_strlcpy(filename, preset_name, filename_size); + f = fopen(filename, "r"); + } else { + for (i = 0; i < 3 && !f; i++) { + if (!base[i]) + continue; + snprintf(filename, filename_size, "%s%s/%s.avpreset", base[i], + i != 1 ? "" : "/.avconv", preset_name); + f = fopen(filename, "r"); + if (!f && codec_name) { + snprintf(filename, filename_size, + "%s%s/%s-%s.avpreset", + base[i], i != 1 ? "" : "/.avconv", 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->codecpar->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]->codecpar->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 == 'i' && *(spec + 1) == ':') { + int stream_id; + char *endptr; + spec += 2; + stream_id = strtol(spec, &endptr, 0); + return stream_id == st->id; + } else if (*spec == 'm' && *(spec + 1) == ':') { + AVDictionaryEntry *tag; + char *key, *val; + int ret; + + spec += 2; + val = strchr(spec, ':'); + + key = val ? av_strndup(spec, val - spec) : av_strdup(spec); + if (!key) + return AVERROR(ENOMEM); + + tag = av_dict_get(st->metadata, key, NULL, 0); + if (tag) { + if (!val || !strcmp(tag->value, val + 1)) + ret = 1; + else + ret = 0; + } else + ret = 0; + + av_freep(&key); + return ret; + } else if (*spec == 'u') { + AVCodecParameters *par = st->codecpar; + int val; + switch (par->codec_type) { + case AVMEDIA_TYPE_AUDIO: + val = par->sample_rate && par->channels; + if (par->format == AV_SAMPLE_FMT_NONE) + return 0; + break; + case AVMEDIA_TYPE_VIDEO: + val = par->width && par->height; + if (par->format == AV_PIX_FMT_NONE) + return 0; + break; + case AVMEDIA_TYPE_UNKNOWN: + val = 0; + break; + default: + val = 1; + break; + } + return par->codec_id != AV_CODEC_ID_NONE && val != 0; + } 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, enum AVCodecID codec_id, + AVFormatContext *s, AVStream *st, AVCodec *codec) +{ + 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) + codec = s->oformat ? avcodec_find_encoder(codec_id) + : avcodec_find_decoder(codec_id); + + switch (st->codecpar->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, s->streams[i]->codecpar->codec_id, + s, s->streams[i], NULL); + 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; +} + +const char *media_type_string(enum AVMediaType media_type) +{ + switch (media_type) { + case AVMEDIA_TYPE_VIDEO: return "video"; + case AVMEDIA_TYPE_AUDIO: return "audio"; + case AVMEDIA_TYPE_DATA: return "data"; + case AVMEDIA_TYPE_SUBTITLE: return "subtitle"; + case AVMEDIA_TYPE_ATTACHMENT: return "attachment"; + default: return "unknown"; + } +}