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avprobe: Add -show_stream_entry to get a single stream property

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This is needed for improved fate testing and it is modeled after
-show_format_entry. The main behavioral difference is that when a print
function is called with an empty key, rather than discarding it, the
closes key in the hierarchy is used instead.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
This commit is contained in:
Vittorio Giovara 2016-10-24 17:22:54 -04:00
parent 218ed7250c
commit 7d308bf84b
1 changed files with 56 additions and 0 deletions
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56
avprobe.c
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@ -54,6 +54,11 @@ static AVDictionary *fmt_entries_to_show = NULL;
static int nb_fmt_entries_to_show;
static int do_show_packets = 0;
static int do_show_streams = 0;
static AVDictionary *stream_entries_to_show = NULL;
static int nb_stream_entries_to_show;
/* key used to print when probe_{int,str}(NULL, ..) is invoked */
static const char *header_key;
static int show_value_unit = 0;
static int use_value_prefix = 0;
@ -78,6 +83,7 @@ static const char unit_bit_per_second_str[] = "bit/s";
static void avprobe_cleanup(int ret)
{
av_dict_free(&fmt_entries_to_show);
av_dict_free(&stream_entries_to_show);
}
/*
@ -402,6 +408,37 @@ static void show_format_entry_string(const char *key, const char *value)
}
}
static void show_stream_entry_header(const char *key, int value)
{
header_key = key;
}
static void show_stream_entry_footer(const char *key, int value)
{
header_key = NULL;
}
static void show_stream_entry_integer(const char *key, int64_t value)
{
if (!key)
key = header_key;
if (key && av_dict_get(stream_entries_to_show, key, NULL, 0)) {
if (nb_stream_entries_to_show > 1)
avio_printf(probe_out, "%s=", key);
avio_printf(probe_out, "%"PRId64"\n", value);
}
}
static void show_stream_entry_string(const char *key, const char *value)
{
if (key && av_dict_get(stream_entries_to_show, key, NULL, 0)) {
if (nb_stream_entries_to_show > 1)
avio_printf(probe_out, "%s=", key);
avio_printf(probe_out, "%s\n", value);
}
}
static void probe_group_enter(const char *name, int type)
{
int64_t count = -1;
@ -973,6 +1010,23 @@ static int opt_show_format_entry(void *optctx, const char *opt, const char *arg)
return 0;
}
static int opt_show_stream_entry(void *optctx, const char *opt, const char *arg)
{
do_show_streams = 1;
nb_stream_entries_to_show++;
octx.print_header = NULL;
octx.print_footer = NULL;
octx.print_array_header = show_stream_entry_header;
octx.print_array_footer = show_stream_entry_footer;
octx.print_object_header = NULL;
octx.print_object_footer = NULL;
octx.print_integer = show_stream_entry_integer;
octx.print_string = show_stream_entry_string;
av_dict_set(&stream_entries_to_show, arg, "", 0);
return 0;
}
static void opt_input_file(void *optctx, const char *arg)
{
if (input_filename) {
@ -1023,6 +1077,8 @@ static const OptionDef real_options[] = {
"show a particular entry from the format/container info", "entry" },
{ "show_packets", OPT_BOOL, {&do_show_packets}, "show packets info" },
{ "show_streams", OPT_BOOL, {&do_show_streams}, "show streams info" },
{ "show_stream_entry", HAS_ARG, {.func_arg = opt_show_stream_entry},
"show a particular entry from all streams", "entry" },
{ "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {.func_arg = opt_default},
"generic catch all option", "" },
{ NULL, },