JSON usage is quite widespread.
---
avprobe.c | 120 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 120 insertions(+), 0 deletions(-)
diff --git a/avprobe.c b/avprobe.c
index 68423fb..cc58236 100644
--- a/avprobe.c
+++ b/avprobe.c
@@ -35,6 +35,7 @@ const int program_birth_year = 2007;
static int do_show_format = 0;
static AVDictionary *fmt_entries_to_show = NULL;
static int nb_fmt_entries_to_show;
+static int do_output_json = 0;
static int do_show_packets = 0;
static int do_show_streams = 0;
@@ -208,6 +209,107 @@ static void ini_print_string(const char *key, const char
*value)
}
/*
+ * Alternate format, JSON
+ */
+
+static void json_print_header(void)
+{
+ avio_printf(avp_out, "{");
+ indent_level++;
+ in_object = 1;
+}
+static void json_print_footer(void)
+{
+ avio_printf(avp_out, "}\n");
+ indent_level--;
+}
+
+static void json_print_array_header(const char *name)
+{
+ if (print_array_separator)
+ avio_printf(avp_out, ",\n");
+ AVP_INDENT();
+ avio_printf(avp_out, "\"%s\" : ", name);
+ avio_printf(avp_out, "[\n");
+ indent_level++;
+ in_object = 0;
+}
+
+static void json_print_array_footer(const char *name)
+{
+ indent_level--;
+ avio_printf(avp_out, "\n");
+ AVP_INDENT();
+ avio_printf(avp_out, "]");
+ in_object = 1;
+}
+
+static void json_print_object_header(const char *name)
+{
+ if (print_object_separator)
+ avio_printf(avp_out, ",\n");
+ AVP_INDENT();
+ if (in_object)
+ avio_printf(avp_out, "\"%s\" : ", name);
+ avio_printf(avp_out, "{\n");
+ indent_level++;
+ in_object = 1;
+}
+
+static void json_print_object_footer(const char *name)
+{
+ indent_level--;
+ avio_printf(avp_out, "\n");
+ AVP_INDENT();
+ avio_printf(avp_out, "}");
+ in_object = 0;
+}
+
+static void json_print_integer(const char *key, int64_t value)
+{
+ if (print_item_separator)
+ avio_printf(avp_out, ",\n");
+ AVP_INDENT();
+ avio_printf(avp_out, "\"%s\" : %"PRId64"", key, value);
+}
+
+static void json_escape_print(const char *s)
+{
+ int i = 0;
+ char c = 0;
+
+ while (c = s[i++]) {
+ switch (c) {
+ case '\r': avio_printf(avp_out, "%s", "\\r"); break;
+ case '\n': avio_printf(avp_out, "%s", "\\n"); break;
+ case '\f': avio_printf(avp_out, "%s", "\\f"); break;
+ case '\b': avio_printf(avp_out, "%s", "\\b"); break;
+ case '\t': avio_printf(avp_out, "%s", "\\t"); break;
+ case '\\':
+ case '"' : avio_w8(avp_out, '\\');
+ default:
+ if ((unsigned char)c < 32)
+ avio_printf(avp_out, "\\u00%02x", c & 0xff);
+ else
+ avio_w8(avp_out, c);
+ break;
+ }
+ }
+}
+
+static void json_print_string(const char *key, const char *value)
+{
+ if (print_item_separator)
+ avio_printf(avp_out, ",\n");
+ AVP_INDENT();
+ avio_w8(avp_out, '\"');
+ json_escape_print(key);
+ avio_printf(avp_out, "\" : \"");
+ json_escape_print(value);
+ avio_w8(avp_out, '\"');
+}
+
+/*
* Simple Formatter for single entries.
*/
@@ -646,6 +748,20 @@ static int opt_format(const char *opt, const char *arg)
return 0;
}
+static void opt_output_json(void)
+{
+ print_header = json_print_header;
+ print_footer = json_print_footer;
+ print_array_header = json_print_array_header;
+ print_array_footer = json_print_array_footer;
+ print_object_header = json_print_object_header;
+ print_object_footer = json_print_object_footer;
+
+ print_integer = json_print_integer;
+ print_string = json_print_string;
+
+}
+
static int opt_show_format_entry(const char *opt, const char *arg)
{
do_show_format = 1;
@@ -706,6 +822,7 @@ static const OptionDef options[] = {
"use sexagesimal format HOURS:MM:SS.MICROSECONDS for time units" },
{ "pretty", 0, {(void*)&opt_pretty},
"prettify the format of displayed values, make it more human readable" },
+ { "json", OPT_BOOL, {(void*)&do_output_json}, "output a json document
instead of an ini one" },
{ "show_format", OPT_BOOL, {(void*)&do_show_format} , "show
format/container info" },
{ "show_format_entry", HAS_ARG, {(void*)opt_show_format_entry},
"show a particular entry from the format/container info", "entry" },
@@ -757,6 +874,9 @@ int main(int argc, char **argv)
if (!avp_out)
exit(1);
+ if (do_output_json)
+ opt_output_json();
+
avp_header();
ret = probe_file(input_filename);
avp_footer();
--
1.7.8.rc1
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