552 lines
14 KiB
Bash
Executable File
552 lines
14 KiB
Bash
Executable File
#!/bin/sh
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prefix=gst
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templatedir=element-templates
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while [ "$1" ] ; do
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case $1 in
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--help)
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cat <<-EOF
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Usage: $(basename "$0") [OPTIONS] APP_NAME
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Create a GStreamer application from a template.
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Options:
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--help Print this information
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--prefix PREFIX Use PREFIX instead of "gst"
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Example: '$(basename "$0") my_app' will create the file gstmyapp.c.
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EOF
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exit 0
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;;
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--prefix)
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shift
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prefix=$1
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;;
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-*)
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echo Unknown option: $1
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exit 1
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;;
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*)
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if [ "$name" = "" ]; then
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name=$1
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else
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echo Ignored: $1
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fi
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esac
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shift
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done
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if [ "$name" = "" ] ; then
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echo "Usage: $(basename "$0") [OPTIONS] APP_NAME"
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exit 1
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fi
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PREFIX=$(echo $prefix | sed -e 's/\(.*\)/\U\1/')
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NAME=$(echo $name | sed -e 's/\(.*\)/\U\1/')
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Prefix=$(echo $prefix | sed -e 's/_\(.\)/\U\1/g' -e 's/^\(.\)/\U\1/')
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Name=$(echo $name | sed -e 's/_\(.\)/\U\1/g' -e 's/^\(.\)/\U\1/')
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GST_IS_REPLACE=${PREFIX}_IS_${NAME}
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GST_REPLACE=${PREFIX}_${NAME}
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GST_TYPE_REPLACE=${PREFIX}_TYPE_${NAME}
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GstReplace=${Prefix}${Name}
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gst_replace=${prefix}_${name}
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gstreplace=${prefix}$(echo $name | sed -e 's/_//g')
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replace=$(echo $name | sed -e 's/_//g')
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if [ "$REAL_NAME" = "" ] ; then
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REAL_NAME=FIXME
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fi
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if [ "$EMAIL_ADDRESS" = "" ] ; then
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EMAIL_ADDRESS=fixme@example.com
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fi
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generate ()
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{
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cat <<-EOF
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/* GstReplace
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* Copyright (C) $(date +%Y) $REAL_NAME <$EMAIL_ADDRESS>
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* Copyright (C) 2010 Entropy Wave Inc
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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 <stdlib.h>
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#define GETTEXT_PACKAGE "replace"
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typedef struct _GstReplace GstReplace;
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struct _GstReplace {
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GstElement *pipeline;
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GstBus *bus;
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GMainLoop *main_loop;
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GstElement *source_element;
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GstElement *sink_element;
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gboolean paused_for_buffering;
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guint timer_id;
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};
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GstReplace * gst_replace_new (void);
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void gst_replace_free (GstReplace *replace);
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void gst_replace_create_pipeline (GstReplace *replace);
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void gst_replace_create_pipeline_playbin (GstReplace *replace, const char *uri);
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void gst_replace_start (GstReplace *replace);
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void gst_replace_stop (GstReplace *replace);
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static gboolean gst_replace_handle_message (GstBus *bus, GstMessage *message,
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gpointer data);
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static gboolean onesecond_timer (gpointer priv);
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gboolean verbose;
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static GOptionEntry entries[] =
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{
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{ "verbose", 'v', 0, G_OPTION_ARG_NONE, &verbose, "Be verbose", NULL },
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{ NULL }
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};
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int
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main (int argc, char *argv[])
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{
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GError *error = NULL;
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GOptionContext *context;
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GstReplace *replace;
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GMainLoop *main_loop;
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context = g_option_context_new ("- FIXME");
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g_option_context_add_main_entries (context, entries, GETTEXT_PACKAGE);
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g_option_context_add_group (context, gst_init_get_option_group ());
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if (!g_option_context_parse (context, &argc, &argv, &error)) {
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g_print ("option parsing failed: %s\n", error->message);
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g_clear_error (&error);
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g_option_context_free (context);
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exit (1);
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}
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g_option_context_free (context);
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replace = gst_replace_new ();
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if (argc > 1) {
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gchar *uri;
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if (gst_uri_is_valid (argv[1])) {
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uri = g_strdup (argv[1]);
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} else {
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uri = g_filename_to_uri (argv[1], NULL, NULL);
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}
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gst_replace_create_pipeline_playbin (replace, uri);
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g_free (uri);
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} else {
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gst_replace_create_pipeline (replace);
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}
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gst_replace_start (replace);
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main_loop = g_main_loop_new (NULL, TRUE);
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replace->main_loop = main_loop;
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g_main_loop_run (main_loop);
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exit (0);
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}
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GstReplace *
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gst_replace_new (void)
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{
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GstReplace *replace;
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replace = g_new0 (GstReplace, 1);
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return replace;
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}
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void
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gst_replace_free (GstReplace *replace)
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{
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if (replace->source_element) {
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gst_object_unref (replace->source_element);
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replace->source_element = NULL;
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}
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if (replace->sink_element) {
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gst_object_unref (replace->sink_element);
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replace->sink_element = NULL;
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}
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if (replace->pipeline) {
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gst_element_set_state (replace->pipeline, GST_STATE_NULL);
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gst_object_unref (replace->pipeline);
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replace->pipeline = NULL;
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}
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g_free (replace);
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}
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void
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gst_replace_create_pipeline_playbin (GstReplace *replace, const char *uri)
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{
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GstElement *pipeline;
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GError *error = NULL;
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pipeline = gst_pipeline_new (NULL);
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gst_bin_add (GST_BIN(pipeline),
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gst_element_factory_make ("playbin", "source"));
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if (error) {
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g_print("pipeline parsing error: %s\n", error->message);
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g_clear_error (&error);
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gst_object_unref (pipeline);
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return;
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}
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replace->pipeline = pipeline;
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gst_pipeline_set_auto_flush_bus (GST_PIPELINE(pipeline), FALSE);
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replace->bus = gst_pipeline_get_bus (GST_PIPELINE(pipeline));
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gst_bus_add_watch (replace->bus, gst_replace_handle_message, replace);
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replace->source_element = gst_bin_get_by_name (GST_BIN(pipeline), "source");
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g_print("source_element is %p\n", replace->source_element);
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g_print("setting uri to %s\n", uri);
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g_object_set (replace->source_element, "uri", uri, NULL);
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}
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void
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gst_replace_create_pipeline (GstReplace *replace)
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{
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GString *pipe_desc;
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GstElement *pipeline;
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GError *error = NULL;
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pipe_desc = g_string_new ("");
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g_string_append (pipe_desc, "videotestsrc name=source num-buffers=100 ! ");
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g_string_append (pipe_desc, "timeoverlay ! ");
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g_string_append (pipe_desc, "xvimagesink name=sink ");
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g_string_append (pipe_desc, "audiotestsrc samplesperbuffer=1600 num-buffers=100 ! ");
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g_string_append (pipe_desc, "alsasink ");
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if (verbose) g_print ("pipeline: %s\n", pipe_desc->str);
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pipeline = (GstElement *) gst_parse_launch (pipe_desc->str, &error);
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g_string_free (pipe_desc, FALSE);
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if (error) {
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g_print("pipeline parsing error: %s\n", error->message);
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g_clear_error (&error);
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gst_object_unref (pipeline);
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return;
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}
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replace->pipeline = pipeline;
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gst_pipeline_set_auto_flush_bus (GST_PIPELINE(pipeline), FALSE);
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replace->bus = gst_pipeline_get_bus (GST_PIPELINE(pipeline));
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gst_bus_add_watch (replace->bus, gst_replace_handle_message, replace);
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replace->source_element = gst_bin_get_by_name (GST_BIN(pipeline), "source");
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replace->sink_element = gst_bin_get_by_name (GST_BIN(pipeline), "sink");
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}
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void
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gst_replace_start (GstReplace *replace)
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{
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gst_element_set_state (replace->pipeline, GST_STATE_READY);
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replace->timer_id = g_timeout_add (1000, onesecond_timer, replace);
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}
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void
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gst_replace_stop (GstReplace *replace)
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{
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gst_element_set_state (replace->pipeline, GST_STATE_NULL);
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g_source_remove (replace->timer_id);
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}
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static void
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gst_replace_handle_eos (GstReplace *replace)
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{
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gst_replace_stop (replace);
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}
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static void
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gst_replace_handle_error (GstReplace *replace, GError *error,
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const char *debug)
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{
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g_print ("error: %s\n", error->message);
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gst_replace_stop (replace);
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}
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static void
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gst_replace_handle_warning (GstReplace *replace, GError *error,
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const char *debug)
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{
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g_print ("warning: %s\n", error->message);
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}
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static void
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gst_replace_handle_info (GstReplace *replace, GError *error,
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const char *debug)
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{
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g_print ("info: %s\n", error->message);
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}
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static void
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gst_replace_handle_null_to_ready (GstReplace *replace)
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{
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gst_element_set_state (replace->pipeline, GST_STATE_PAUSED);
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}
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static void
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gst_replace_handle_ready_to_paused (GstReplace *replace)
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{
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if (!replace->paused_for_buffering) {
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gst_element_set_state (replace->pipeline, GST_STATE_PLAYING);
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}
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}
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static void
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gst_replace_handle_paused_to_playing (GstReplace *replace)
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{
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}
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static void
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gst_replace_handle_playing_to_paused (GstReplace *replace)
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{
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}
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static void
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gst_replace_handle_paused_to_ready (GstReplace *replace)
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{
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}
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static void
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gst_replace_handle_ready_to_null (GstReplace *replace)
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{
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g_main_loop_quit (replace->main_loop);
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}
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static gboolean
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gst_replace_handle_message (GstBus *bus, GstMessage *message,
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gpointer data)
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{
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GstReplace *replace = (GstReplace *) data;
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switch (GST_MESSAGE_TYPE(message)) {
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case GST_MESSAGE_EOS:
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gst_replace_handle_eos (replace);
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break;
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case GST_MESSAGE_ERROR:
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{
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GError *error = NULL;
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gchar *debug;
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gst_message_parse_error (message, &error, &debug);
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gst_replace_handle_error (replace, error, debug);
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g_clear_error (&error);
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}
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break;
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case GST_MESSAGE_WARNING:
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{
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GError *error = NULL;
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gchar *debug;
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gst_message_parse_warning (message, &error, &debug);
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gst_replace_handle_warning (replace, error, debug);
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g_clear_error (&error);
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}
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break;
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case GST_MESSAGE_INFO:
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{
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GError *error = NULL;
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gchar *debug;
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gst_message_parse_info (message, &error, &debug);
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gst_replace_handle_info (replace, error, debug);
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g_clear_error (&error);
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}
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break;
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case GST_MESSAGE_TAG:
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{
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GstTagList *tag_list;
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gst_message_parse_tag (message, &tag_list);
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if (verbose) g_print("tag\n");
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}
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break;
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case GST_MESSAGE_STATE_CHANGED:
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{
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GstState oldstate, newstate, pending;
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gst_message_parse_state_changed (message, &oldstate, &newstate,
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&pending);
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if (GST_ELEMENT(message->src) == replace->pipeline) {
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if (verbose) g_print("state change from %s to %s\n",
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gst_element_state_get_name (oldstate),
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gst_element_state_get_name (newstate));
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switch (GST_STATE_TRANSITION(oldstate, newstate)) {
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case GST_STATE_CHANGE_NULL_TO_READY:
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gst_replace_handle_null_to_ready (replace);
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break;
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case GST_STATE_CHANGE_READY_TO_PAUSED:
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gst_replace_handle_ready_to_paused (replace);
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break;
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case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
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gst_replace_handle_paused_to_playing (replace);
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break;
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case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
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gst_replace_handle_playing_to_paused (replace);
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break;
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case GST_STATE_CHANGE_PAUSED_TO_READY:
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gst_replace_handle_paused_to_ready (replace);
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break;
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case GST_STATE_CHANGE_READY_TO_NULL:
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gst_replace_handle_ready_to_null (replace);
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break;
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default:
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if (verbose) g_print("unknown state change from %s to %s\n",
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gst_element_state_get_name (oldstate),
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gst_element_state_get_name (newstate));
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}
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}
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}
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break;
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case GST_MESSAGE_BUFFERING:
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{
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int percent;
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gst_message_parse_buffering (message, &percent);
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//g_print("buffering %d\n", percent);
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if (!replace->paused_for_buffering && percent < 100) {
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g_print ("pausing for buffing\n");
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replace->paused_for_buffering = TRUE;
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gst_element_set_state (replace->pipeline, GST_STATE_PAUSED);
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} else if (replace->paused_for_buffering && percent == 100) {
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g_print ("unpausing for buffing\n");
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replace->paused_for_buffering = FALSE;
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gst_element_set_state (replace->pipeline, GST_STATE_PLAYING);
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}
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}
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break;
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case GST_MESSAGE_STATE_DIRTY:
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case GST_MESSAGE_CLOCK_PROVIDE:
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case GST_MESSAGE_CLOCK_LOST:
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case GST_MESSAGE_NEW_CLOCK:
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case GST_MESSAGE_STRUCTURE_CHANGE:
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case GST_MESSAGE_STREAM_STATUS:
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break;
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case GST_MESSAGE_STEP_DONE:
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case GST_MESSAGE_APPLICATION:
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case GST_MESSAGE_ELEMENT:
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case GST_MESSAGE_SEGMENT_START:
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case GST_MESSAGE_SEGMENT_DONE:
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case GST_MESSAGE_DURATION:
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case GST_MESSAGE_LATENCY:
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case GST_MESSAGE_ASYNC_START:
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case GST_MESSAGE_ASYNC_DONE:
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case GST_MESSAGE_REQUEST_STATE:
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case GST_MESSAGE_STEP_START:
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case GST_MESSAGE_QOS:
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default:
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if (verbose) {
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g_print ("message: %s\n", GST_MESSAGE_TYPE_NAME (message));
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}
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break;
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}
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return TRUE;
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}
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static gboolean
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onesecond_timer (gpointer priv)
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{
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//GstReplace *replace = (GstReplace *)priv;
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g_print(".\n");
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return TRUE;
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}
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/* helper functions */
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#if 0
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gboolean
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have_element (const gchar *element_name)
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{
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GstPluginFeature *feature;
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feature = gst_default_registry_find_feature (element_name,
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GST_TYPE_ELEMENT_FACTORY);
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if (feature) {
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g_object_unref (feature);
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return TRUE;
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}
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return FALSE;
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}
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#endif
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EOF
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}
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generate | sed \
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-e "s/GST_BASE_REPLACE/$GST_BASE_REPLACE/g" \
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-e "s/GST_TYPE_BASE_REPLACE/$GST_TYPE_BASE_REPLACE/g" \
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-e "s/GstBaseReplace/$GstBaseReplace/g" \
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-e "s/GST_IS_REPLACE/$GST_IS_REPLACE/g" \
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-e "s/GST_REPLACE/$GST_REPLACE/g" \
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-e "s/GST_TYPE_REPLACE/$GST_TYPE_REPLACE/g" \
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-e "s/GstReplace/$GstReplace/g" \
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-e "s/gst_replace/$gst_replace/g" \
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-e "s/gstreplace/$gstreplace/g" \
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-e "s/replace/$replace/g" >$gstreplace.c
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gst-indent $gstreplace.c
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gcc -O2 -Wall $(pkg-config --cflags gstreamer-1.0) -c -o $gstreplace.o $gstreplace.c
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gcc -o $gstreplace $gstreplace.o $(pkg-config --libs gstreamer-1.0)
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