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194229250a
Original commit message from CVS: * tests/icles/gdkpixbufsink-test.c: Add cast to placate gcc 4.1.2.
358 lines
9.7 KiB
C
358 lines
9.7 KiB
C
/* GStreamer interactive test for the gdkpixbufsink element
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* Copyright (C) 2008 Tim-Philipp Müller <tim centricular net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <gst/gst.h>
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#include <gtk/gtk.h>
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typedef struct
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{
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GstElement *pipe;
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GstElement *sink;
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gboolean got_video;
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GtkWidget *win;
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GtkWidget *img;
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GtkWidget *slider;
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GtkWidget *accurate_cb;
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gboolean accurate; /* whether to try accurate seeks */
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gint64 cur_pos;
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gboolean prerolled;
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} AppInfo;
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static void seek_to (AppInfo * info, gdouble percent);
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static GstElement *
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create_element (const gchar * factory_name)
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{
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GstElement *element;
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element = gst_element_factory_make (factory_name, NULL);
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if (element == NULL)
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g_error ("Failed to create '%s' element", factory_name);
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return element;
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}
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static void
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new_decoded_pad (GstElement * dec, GstPad * new_pad, gboolean last,
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AppInfo * info)
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{
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const gchar *sname;
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GstElement *csp, *scale, *filter;
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GstStructure *s;
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GstCaps *caps;
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GstPad *sinkpad;
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/* already found a video stream? */
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if (info->got_video)
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return;
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/* FIXME: is this racy or does decodebin2 make sure caps are always
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* negotiated at this point? */
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caps = gst_pad_get_caps (new_pad);
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g_return_if_fail (caps != NULL);
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s = gst_caps_get_structure (caps, 0);
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sname = gst_structure_get_name (s);
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if (!g_str_has_prefix (sname, "video/x-raw-"))
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goto not_video;
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csp = create_element ("ffmpegcolorspace");
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scale = create_element ("videoscale");
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filter = create_element ("capsfilter");
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info->sink = create_element ("gdkpixbufsink");
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g_object_set (info->sink, "qos", FALSE, "max-lateness", (gint64) - 1, NULL);
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gst_bin_add_many (GST_BIN (info->pipe), csp, scale, filter, info->sink, NULL);
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sinkpad = gst_element_get_static_pad (csp, "sink");
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if (GST_PAD_LINK_FAILED (gst_pad_link (new_pad, sinkpad)))
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g_error ("Can't link new decoded pad to ffmpegcolorspace's sink pad");
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gst_object_unref (sinkpad);
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if (!gst_element_link (csp, scale))
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g_error ("Can't link ffmpegcolorspace to videoscale");
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if (!gst_element_link (scale, filter))
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g_error ("Can't link videoscale to capsfilter");
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if (!gst_element_link (filter, info->sink))
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g_error ("Can't link capsfilter to gdkpixbufsink");
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gst_element_set_state (info->sink, GST_STATE_PAUSED);
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gst_element_set_state (filter, GST_STATE_PAUSED);
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gst_element_set_state (scale, GST_STATE_PAUSED);
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gst_element_set_state (csp, GST_STATE_PAUSED);
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info->got_video = TRUE;
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return;
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not_video:
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{
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if (last) {
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g_error ("This file does not contain a video track, or you do not have "
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"the necessary decoder(s) installed");
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}
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}
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}
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static void
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bus_message_cb (GstBus * bus, GstMessage * msg, AppInfo * info)
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{
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switch (GST_MESSAGE_TYPE (msg)) {
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case GST_MESSAGE_ASYNC_DONE:{
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GstFormat fmt = GST_FORMAT_TIME;
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/* only interested in async-done messages from the top-level pipeline */
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if (msg->src != GST_OBJECT_CAST (info->pipe))
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break;
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if (!info->prerolled) {
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/* make slider visible if it's not visible already */
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gtk_widget_show (info->slider);
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/* initial frame is often black, so seek to beginning plus a bit */
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seek_to (info, 0.001);
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info->prerolled = TRUE;
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}
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/* update position */
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if (!gst_element_query_position (info->pipe, &fmt, &info->cur_pos))
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info->cur_pos = -1;
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break;
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}
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case GST_MESSAGE_ELEMENT:{
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const GValue *val;
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GdkPixbuf *pixbuf = NULL;
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/* only interested in element messages from our gdkpixbufsink */
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if (msg->src != GST_OBJECT_CAST (info->sink))
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break;
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/* only interested in these two messages */
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if (!gst_structure_has_name (msg->structure, "preroll-pixbuf") &&
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!gst_structure_has_name (msg->structure, "pixbuf")) {
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break;
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}
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g_print ("pixbuf\n");
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val = gst_structure_get_value (msg->structure, "pixbuf");
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g_return_if_fail (val != NULL);
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pixbuf = GDK_PIXBUF (g_value_dup_object (val));
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gtk_image_set_from_pixbuf (GTK_IMAGE (info->img), pixbuf);
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g_object_unref (pixbuf);
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break;
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}
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case GST_MESSAGE_ERROR:{
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GError *err = NULL;
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gchar *dbg = NULL;
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gst_message_parse_error (msg, &err, &dbg);
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g_error ("Error: %s\n%s\n", err->message, (dbg) ? dbg : "");
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g_error_free (err);
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g_free (dbg);
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break;
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}
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default:
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break;
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}
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}
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static gboolean
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create_pipeline (AppInfo * info, const gchar * filename)
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{
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GstElement *src, *dec;
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GstBus *bus;
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info->pipe = gst_pipeline_new ("pipeline");
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src = create_element ("filesrc");
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g_object_set (src, "location", filename, NULL);
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dec = create_element ("decodebin2");
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gst_bin_add_many (GST_BIN (info->pipe), src, dec, NULL);
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if (!gst_element_link (src, dec))
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g_error ("Can't link filesrc to decodebin2");
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g_signal_connect (dec, "new-decoded-pad", G_CALLBACK (new_decoded_pad), info);
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/* set up bus */
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bus = gst_element_get_bus (info->pipe);
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gst_bus_add_signal_watch (bus);
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g_signal_connect (bus, "message", G_CALLBACK (bus_message_cb), info);
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gst_object_unref (bus);
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return TRUE;
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}
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static void
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seek_to (AppInfo * info, gdouble percent)
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{
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GstSeekFlags seek_flags;
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GstFormat fmt = GST_FORMAT_TIME;
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gint64 seek_pos, dur = -1;
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if (!gst_element_query_duration (info->pipe, &fmt, &dur) || dur <= 0) {
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g_printerr ("Could not query duration\n");
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return;
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}
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seek_pos = gst_gdouble_to_guint64 (gst_guint64_to_gdouble (dur) * percent);
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g_print ("Seeking to %" GST_TIME_FORMAT ", accurate: %d\n",
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GST_TIME_ARGS (seek_pos), info->accurate);
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seek_flags = GST_SEEK_FLAG_FLUSH;
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if (info->accurate)
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seek_flags |= GST_SEEK_FLAG_ACCURATE;
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else
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seek_flags |= GST_SEEK_FLAG_KEY_UNIT;
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if (!gst_element_seek_simple (info->pipe, GST_FORMAT_TIME, seek_flags,
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seek_pos)) {
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g_printerr ("Seek failed.\n");
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return;
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}
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}
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static void
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slider_cb (GtkRange * range, AppInfo * info)
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{
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gdouble val;
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val = gtk_range_get_value (range);
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seek_to (info, val);
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}
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static gchar *
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slider_format_value_cb (GtkScale * scale, gdouble value, AppInfo * info)
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{
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gchar s[64];
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if (info->cur_pos < 0)
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return g_strdup_printf ("%0.1g%%", value * 100.0);
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g_snprintf (s, 64, "%" GST_TIME_FORMAT, GST_TIME_ARGS (info->cur_pos));
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s[10] = '\0';
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return g_strdup (s);
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}
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static void
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accurate_toggled_cb (GtkToggleButton * toggle, AppInfo * info)
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{
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info->accurate = gtk_toggle_button_get_active (toggle);
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}
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static void
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run_gui (const gchar * filename)
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{
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GtkWidget *vbox, *hbox;
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AppInfo *info;
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info = g_new0 (AppInfo, 1);
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/* create pipeline */
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if (!create_pipeline (info, filename))
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goto done;
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/* create window */
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info->win = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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g_signal_connect (info->win, "delete-event", G_CALLBACK (gtk_main_quit),
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NULL);
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vbox = gtk_vbox_new (FALSE, 6);
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gtk_container_set_border_width (GTK_CONTAINER (vbox), 12);
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gtk_container_add (GTK_CONTAINER (info->win), vbox);
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info->img = gtk_image_new ();
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gtk_box_pack_start (GTK_BOX (vbox), info->img, FALSE, FALSE, 6);
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hbox = gtk_hbox_new (FALSE, 6);
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gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 6);
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info->accurate_cb = gtk_check_button_new_with_label ("accurate seek "
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"(might not work reliably with all demuxers)");
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gtk_box_pack_start (GTK_BOX (hbox), info->accurate_cb, FALSE, FALSE, 6);
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g_signal_connect (info->accurate_cb, "toggled",
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G_CALLBACK (accurate_toggled_cb), info);
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info->slider = gtk_hscale_new_with_range (0.0, 1.0, 0.001);
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gtk_box_pack_start (GTK_BOX (vbox), info->slider, FALSE, FALSE, 6);
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g_signal_connect (info->slider, "value-changed",
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G_CALLBACK (slider_cb), info);
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g_signal_connect (info->slider, "format-value",
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G_CALLBACK (slider_format_value_cb), info);
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/* and go! */
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gst_element_set_state (info->pipe, GST_STATE_PAUSED);
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gtk_widget_show_all (info->win);
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gtk_widget_hide (info->slider); /* hide until we're prerolled */
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gtk_main ();
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done:
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g_free (info);
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}
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static gchar **filenames = NULL;
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int
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main (int argc, char **argv)
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{
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static const GOptionEntry test_goptions[] = {
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{G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, &filenames, NULL},
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{NULL, '\0', 0, 0, NULL, NULL, NULL}
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};
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GOptionContext *ctx;
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GError *opt_err = NULL;
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if (!g_thread_supported ())
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g_thread_init (NULL);
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gtk_init (&argc, &argv);
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/* command line option parsing */
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ctx = g_option_context_new (" VIDEOFILE");
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g_option_context_add_group (ctx, gst_init_get_option_group ());
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g_option_context_add_main_entries (ctx, test_goptions, NULL);
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if (!g_option_context_parse (ctx, &argc, &argv, &opt_err)) {
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g_error ("Error parsing command line options: %s", opt_err->message);
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return -1;
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}
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if (filenames == NULL || filenames[0] == NULL || filenames[0][0] == '\0') {
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g_printerr ("Please specify a path to a video file\n\n");
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return -1;
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}
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run_gui (filenames[0]);
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g_free (filenames);
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g_option_context_free (ctx);
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return 0;
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}
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