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ffprobe: implement -sections option
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@ -28,6 +28,7 @@ version <next>:
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- new expansion syntax for drawtext
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- BRender PIX image decoder
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- ffprobe -show_entries option
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- ffprobe -sections option
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version 1.0:
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@ -45,6 +45,10 @@ ffprobe output is designed to be easily parsable by a textual filter,
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and consists of one or more sections of a form defined by the selected
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writer, which is specified by the @option{print_format} option.
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Sections may contain other nested sections, and are identified by a
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name (which may be shared by other sections), and an unique
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name. See the output of @option{sections}.
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Metadata tags stored in the container or in the streams are recognized
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and printed in the corresponding "FORMAT" or "STREAM" section.
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@ -94,6 +98,10 @@ For example for printing the output in JSON format, specify:
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For more details on the available output printing formats, see the
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Writers section below.
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@item -sections
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Print sections structure and section information, and exit. The output
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is not meant to be parsed by a machine.
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@item -select_streams @var{stream_specifier}
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Select only the streams specified by @var{stream_specifier}. This
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option affects only the options related to streams
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30
ffprobe.c
30
ffprobe.c
@ -2105,6 +2105,35 @@ static int opt_pretty(void *optctx, const char *opt, const char *arg)
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return 0;
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}
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static void print_section(SectionID id, int level)
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{
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const SectionID *pid;
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const struct section *section = §ions[id];
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printf("%c%c%c",
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section->flags & SECTION_FLAG_IS_WRAPPER ? 'W' : '.',
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section->flags & SECTION_FLAG_IS_ARRAY ? 'A' : '.',
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section->flags & SECTION_FLAG_HAS_VARIABLE_FIELDS ? 'V' : '.');
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printf("%*c %s", level * 4, ' ', section->name);
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if (section->unique_name)
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printf("/%s", section->unique_name);
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printf("\n");
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for (pid = section->children_ids; *pid != -1; pid++)
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print_section(*pid, level+1);
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}
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static int opt_sections(void *optctx, const char *opt, const char *arg)
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{
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printf("Sections:\n"
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"W.. = Section is a wrapper (contains other sections, no local entries)\n"
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".A. = Section contains an array of elements of the same type\n"
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"..V = Section may contain a variable number of fields with variable keys\n"
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"FLAGS NAME/UNIQUE_NAME\n"
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"---\n");
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print_section(SECTION_ID_ROOT, 0);
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return 0;
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}
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static int opt_show_versions(const char *opt, const char *arg)
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{
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mark_section_show_entries(SECTION_ID_PROGRAM_VERSION, 1, NULL);
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@ -2142,6 +2171,7 @@ static const OptionDef real_options[] = {
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"set the output printing format (available formats are: default, compact, csv, flat, ini, json, xml)", "format" },
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{ "of", OPT_STRING | HAS_ARG, {(void*)&print_format}, "alias for -print_format", "format" },
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{ "select_streams", OPT_STRING | HAS_ARG, {(void*)&stream_specifier}, "select the specified streams", "stream_specifier" },
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{ "sections", OPT_EXIT, {.func_arg = opt_sections}, "print sections structure and section information, and exit" },
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{ "show_data", OPT_BOOL, {(void*)&do_show_data}, "show packets data" },
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{ "show_error", 0, {(void*)&opt_show_error}, "show probing error" },
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{ "show_format", 0, {(void*)&opt_show_format}, "show format/container info" },
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