mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-29 21:21:12 +00:00
146 lines
4.1 KiB
C
146 lines
4.1 KiB
C
/* GStreamer interactive test for accurate segment seeking
|
|
* Copyright (C) 2014 Tim-Philipp Müller <tim centricular 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.
|
|
*
|
|
*/
|
|
|
|
/* Plays the provided file one second at a time using segment seeks.
|
|
* Theoretically this should be just as smooth as if we played the
|
|
* file from start to stop in one go, certainly without hickups.
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include <gst/gst.h>
|
|
|
|
#define SEGMENT_DURATION (1 * GST_SECOND)
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
GstElement *playbin;
|
|
GstMessage *msg;
|
|
gchar *uri;
|
|
gint64 dur, start, stop;
|
|
gboolean prerolled = FALSE;
|
|
|
|
if (argc < 2) {
|
|
g_printerr ("Usage: %s FILENAME\n", argv[0]);
|
|
return -1;
|
|
}
|
|
|
|
gst_init (&argc, &argv);
|
|
|
|
if (gst_uri_is_valid (argv[1]))
|
|
uri = g_strdup (argv[1]);
|
|
else
|
|
uri = gst_filename_to_uri (argv[1], NULL);
|
|
|
|
g_print ("uri: %s\n", uri);
|
|
|
|
playbin = gst_element_factory_make ("playbin", NULL);
|
|
g_object_set (playbin, "uri", uri, NULL);
|
|
|
|
#if 0
|
|
{
|
|
GstElement *src;
|
|
|
|
playbin = gst_parse_launch ("uridecodebin name=d ! queue ! "
|
|
"filesink location=/tmp/raw1.data", NULL);
|
|
src = gst_bin_get_by_name (GST_BIN (playbin), "d");
|
|
g_object_set (src, "uri", uri, NULL);
|
|
gst_object_unref (src);
|
|
}
|
|
#endif
|
|
|
|
gst_element_set_state (playbin, GST_STATE_PAUSED);
|
|
|
|
/* wait for preroll */
|
|
msg = gst_bus_timed_pop_filtered (GST_ELEMENT_BUS (playbin),
|
|
GST_CLOCK_TIME_NONE, GST_MESSAGE_ASYNC_DONE | GST_MESSAGE_ERROR);
|
|
|
|
g_assert (GST_MESSAGE_TYPE (msg) != GST_MESSAGE_ERROR);
|
|
prerolled = TRUE;
|
|
|
|
gst_message_unref (msg);
|
|
|
|
if (!gst_element_query_duration (playbin, GST_FORMAT_TIME, &dur))
|
|
g_error ("Failed to query duration!\n");
|
|
|
|
g_print ("Duration: %" GST_TIME_FORMAT "\n", GST_TIME_ARGS (dur));
|
|
|
|
start = 0;
|
|
do {
|
|
GstSeekFlags seek_flags;
|
|
gboolean ret;
|
|
gboolean segment_done = FALSE;
|
|
|
|
seek_flags = GST_SEEK_FLAG_ACCURATE | GST_SEEK_FLAG_SEGMENT;
|
|
|
|
if (start == 0) {
|
|
prerolled = FALSE;
|
|
seek_flags |= GST_SEEK_FLAG_FLUSH;
|
|
}
|
|
|
|
stop = start + SEGMENT_DURATION;
|
|
|
|
g_print ("Segment: %" GST_TIME_FORMAT "-%" GST_TIME_FORMAT "\n",
|
|
GST_TIME_ARGS (start), GST_TIME_ARGS (stop));
|
|
|
|
ret = gst_element_seek (playbin, 1.0, GST_FORMAT_TIME, seek_flags,
|
|
GST_SEEK_TYPE_SET, start, GST_SEEK_TYPE_SET, stop);
|
|
|
|
g_assert (ret);
|
|
|
|
if (!prerolled) {
|
|
while (!prerolled) {
|
|
/* wait for preroll again */
|
|
msg = gst_bus_timed_pop_filtered (GST_ELEMENT_BUS (playbin),
|
|
GST_CLOCK_TIME_NONE, GST_MESSAGE_SEGMENT_DONE |
|
|
GST_MESSAGE_ASYNC_DONE | GST_MESSAGE_ERROR);
|
|
|
|
g_assert (GST_MESSAGE_TYPE (msg) != GST_MESSAGE_ERROR);
|
|
if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_SEGMENT_DONE) {
|
|
segment_done = TRUE;
|
|
} else {
|
|
prerolled = TRUE;
|
|
}
|
|
gst_message_unref (msg);
|
|
}
|
|
|
|
gst_element_set_state (playbin, GST_STATE_PLAYING);
|
|
}
|
|
|
|
/* wait for end of segment if we didn't get it above already */
|
|
if (!segment_done) {
|
|
msg = gst_bus_timed_pop_filtered (GST_ELEMENT_BUS (playbin),
|
|
GST_CLOCK_TIME_NONE, GST_MESSAGE_SEGMENT_DONE | GST_MESSAGE_ERROR);
|
|
|
|
g_assert (GST_MESSAGE_TYPE (msg) != GST_MESSAGE_ERROR);
|
|
|
|
gst_message_unref (msg);
|
|
}
|
|
|
|
start = stop;
|
|
}
|
|
while (start < dur);
|
|
|
|
gst_element_set_state (playbin, GST_STATE_NULL);
|
|
gst_object_unref (playbin);
|
|
return 0;
|
|
}
|