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gst-launch: Add support printing current position of pipeline

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By default, gst-launch will print the current position of pipeline (with duration if available).
To disable it, use "--no-position" option.
This commit is contained in:
Seungha Yang 2019-05-30 20:53:34 +09:00 committed by Jordan Petridis
parent 15423723fe
commit 0505bd76a1
2 changed files with 62 additions and 0 deletions
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3
tools/gst-launch-1.0.1
View file

@ -55,6 +55,9 @@ Do not install a fault handler
Print memory allocation traces. The feature must be enabled at compile time to
work.
.TP 8
.B \-\-no\-position
Do not print current position of pipeline
.TP 8
.
.SH "GSTREAMER OPTIONS"

59
tools/gst-launch.c
View file

@ -38,6 +38,11 @@
#elif defined (G_OS_WIN32)
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <io.h>
#ifndef STDOUT_FILENO
#define STDOUT_FILENO 1
#endif
#define isatty _isatty
#endif
#include <locale.h> /* for LC_ALL */
#include "tools.h"
@ -991,6 +996,40 @@ bus_sync_handler (GstBus * bus, GstMessage * message, gpointer data)
return GST_BUS_PASS;
}
static gboolean
query_pipeline_position (gpointer user_data)
{
gint64 pos = -1, dur = -1;
gboolean output_is_tty = GPOINTER_TO_INT (user_data);
if (buffering)
return G_SOURCE_CONTINUE;
gst_element_query_position (pipeline, GST_FORMAT_TIME, &pos);
gst_element_query_duration (pipeline, GST_FORMAT_TIME, &dur);
if (pos >= 0) {
gchar dstr[32], pstr[32];
/* FIXME: pretty print in nicer format */
g_snprintf (pstr, 32, "%" GST_TIME_FORMAT, GST_TIME_ARGS (pos));
pstr[9] = '\0';
g_snprintf (dstr, 32, "%" GST_TIME_FORMAT, GST_TIME_ARGS (dur));
dstr[9] = '\0';
if (dur > 0 && dur >= pos) {
gdouble percent;
percent = 100 * (gdouble) (pos) / dur;
gst_print ("%s / %s (%.1f %%)%c", pstr, dstr, percent,
output_is_tty ? '\r' : '\n');
} else
gst_print ("%s / %s%c", pstr, dstr, output_is_tty ? '\r' : '\n');
}
return G_SOURCE_CONTINUE;
}
int
main (int argc, char *argv[])
{
@ -1001,6 +1040,7 @@ main (int argc, char *argv[])
gboolean check_index = FALSE;
#endif
gchar *savefile = NULL;
gboolean no_position = FALSE;
#ifndef GST_DISABLE_OPTION_PARSING
GOptionEntry options[] = {
{"tags", 't', 0, G_OPTION_ARG_NONE, &tags,
@ -1026,6 +1066,8 @@ main (int argc, char *argv[])
N_("Gather and print index statistics"), NULL},
#endif
GST_TOOLS_GOPTION_VERSION,
{"no-position", '\0', 0, G_OPTION_ARG_NONE, &no_position,
N_("Do not print current position of pipeline"), NULL},
{NULL}
};
GOptionContext *ctx;
@ -1039,6 +1081,7 @@ main (int argc, char *argv[])
GError *error = NULL;
gulong deep_notify_id = 0;
guint bus_watch_id = 0;
GSource *position_source = NULL;
free (malloc (8)); /* -lefence */
@ -1175,10 +1218,26 @@ main (int argc, char *argv[])
#elif defined(G_OS_WIN32)
SetConsoleCtrlHandler (w32_intr_handler, TRUE);
#endif
if (!no_position) {
gboolean output_is_tty = TRUE;
if (!isatty (STDOUT_FILENO))
output_is_tty = FALSE;
position_source = g_timeout_source_new (100);
g_source_set_callback (position_source, query_pipeline_position,
GINT_TO_POINTER (output_is_tty), NULL);
g_source_attach (position_source, NULL);
}
/* playing state will be set on state-changed message handler */
g_main_loop_run (loop);
if (position_source) {
g_source_destroy (position_source);
g_source_unref (position_source);
}
{
GstClockTime tfnow;
GstClockTimeDiff diff;