mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-04 23:46:43 +00:00
178 lines
4.7 KiB
C
178 lines
4.7 KiB
C
/* GStreamer
|
|
*
|
|
* Copyright (C) 2009 Wim Taymans <wim.taymans@gmail.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <gst/gst.h>
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
typedef struct _App App;
|
|
|
|
struct _App
|
|
{
|
|
GstElement *playbin;
|
|
GstElement *textsink;
|
|
|
|
GMainLoop *loop;
|
|
};
|
|
|
|
static App s_app;
|
|
|
|
static gboolean
|
|
bus_message (GstBus * bus, GstMessage * message, App * app)
|
|
{
|
|
GST_DEBUG ("got message %s",
|
|
gst_message_type_get_name (GST_MESSAGE_TYPE (message)));
|
|
|
|
switch (GST_MESSAGE_TYPE (message)) {
|
|
case GST_MESSAGE_ERROR:
|
|
{
|
|
GError *gerror;
|
|
gchar *debug;
|
|
|
|
gst_message_parse_error (message, &gerror, &debug);
|
|
gst_object_default_error (GST_MESSAGE_SRC (message), gerror, debug);
|
|
g_error_free (gerror);
|
|
g_free (debug);
|
|
|
|
g_main_loop_quit (app->loop);
|
|
break;
|
|
}
|
|
case GST_MESSAGE_WARNING:
|
|
{
|
|
GError *gerror;
|
|
gchar *debug;
|
|
|
|
gst_message_parse_warning (message, &gerror, &debug);
|
|
gst_object_default_error (GST_MESSAGE_SRC (message), gerror, debug);
|
|
g_error_free (gerror);
|
|
g_free (debug);
|
|
break;
|
|
}
|
|
case GST_MESSAGE_EOS:
|
|
g_message ("received EOS");
|
|
g_main_loop_quit (app->loop);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
have_subtitle (GstElement * appsink, App * app)
|
|
{
|
|
GstBuffer *buffer;
|
|
GstSample *sample;
|
|
|
|
/* get the buffer, we can also wakeup the mainloop to get the subtitle from
|
|
* appsink in the mainloop */
|
|
g_signal_emit_by_name (appsink, "pull-sample", &sample);
|
|
if (sample) {
|
|
GstMapInfo map;
|
|
gint64 position;
|
|
GstClock *clock;
|
|
GstClockTime base_time, running_time;
|
|
|
|
buffer = gst_sample_get_buffer (sample);
|
|
gst_element_query_position (appsink, GST_FORMAT_TIME, &position);
|
|
|
|
clock = gst_element_get_clock (appsink);
|
|
base_time = gst_element_get_base_time (appsink);
|
|
|
|
running_time = gst_clock_get_time (clock) - base_time;
|
|
|
|
gst_object_unref (clock);
|
|
|
|
g_message ("received a subtitle at position %" GST_TIME_FORMAT
|
|
", running_time %" GST_TIME_FORMAT, GST_TIME_ARGS (position),
|
|
GST_TIME_ARGS (running_time));
|
|
|
|
gst_buffer_map (buffer, &map, GST_MAP_READ);
|
|
gst_util_dump_mem (map.data, map.size);
|
|
gst_buffer_unmap (buffer, &map);
|
|
gst_sample_unref (sample);
|
|
}
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
App *app = &s_app;
|
|
GstBus *bus;
|
|
GstCaps *subcaps;
|
|
|
|
gst_init (&argc, &argv);
|
|
|
|
if (argc < 2) {
|
|
g_print ("usage: %s <uri> [<suburi>]\n", argv[0]);
|
|
return -1;
|
|
}
|
|
|
|
/* create a mainloop to get messages */
|
|
app->loop = g_main_loop_new (NULL, TRUE);
|
|
|
|
app->playbin = gst_element_factory_make ("playbin", NULL);
|
|
g_assert (app->playbin);
|
|
|
|
/* set appsink to get the subtitles */
|
|
app->textsink = gst_element_factory_make ("appsink", "subtitle_sink");
|
|
g_object_set (G_OBJECT (app->textsink), "emit-signals", TRUE, NULL);
|
|
g_object_set (G_OBJECT (app->textsink), "ts-offset", 0 * GST_SECOND, NULL);
|
|
g_signal_connect (app->textsink, "new-sample", G_CALLBACK (have_subtitle),
|
|
app);
|
|
subcaps = gst_caps_from_string ("text/x-raw, format={ utf8, pango-markup }");
|
|
g_object_set (G_OBJECT (app->textsink), "caps", subcaps, NULL);
|
|
gst_caps_unref (subcaps);
|
|
|
|
g_object_set (G_OBJECT (app->playbin), "text-sink", app->textsink, NULL);
|
|
|
|
bus = gst_pipeline_get_bus (GST_PIPELINE (app->playbin));
|
|
|
|
/* add watch for messages */
|
|
gst_bus_add_watch (bus, (GstBusFunc) bus_message, app);
|
|
|
|
/* set to read from appsrc */
|
|
g_object_set (app->playbin, "uri", argv[1], NULL);
|
|
|
|
if (argc > 2)
|
|
g_object_set (app->playbin, "suburi", argv[2], NULL);
|
|
|
|
/* go to playing and wait in a mainloop. */
|
|
gst_element_set_state (app->playbin, GST_STATE_PLAYING);
|
|
|
|
/* this mainloop is stopped when we receive an error or EOS */
|
|
g_main_loop_run (app->loop);
|
|
|
|
g_message ("stopping");
|
|
|
|
gst_element_set_state (app->playbin, GST_STATE_NULL);
|
|
|
|
gst_object_unref (bus);
|
|
g_main_loop_unref (app->loop);
|
|
|
|
return 0;
|
|
}
|