gstreamer/tools/ges-launch.c

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/* GStreamer Editing Services
* Copyright (C) 2010 Edward Hervey <bilboed@bilboed.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
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#include <string.h>
#include <glib.h>
#include <ges/ges.h>
#include <gst/pbutils/encoding-profile.h>
#include <regex.h>
/* GLOBAL VARIABLE */
static guint repeat = 0;
static GESTimelinePipeline *pipeline = NULL;
static gboolean seenerrors = FALSE;
static gchar *
ensure_uri (gchar * location)
{
gchar *res;
gchar *path;
if (gst_uri_is_valid (location))
return g_strdup (location);
if (!g_path_is_absolute (location)) {
gchar *cur_dir;
cur_dir = g_get_current_dir ();
path = g_build_filename (cur_dir, location, NULL);
g_free (cur_dir);
} else
path = g_strdup (location);
res = g_filename_to_uri (path, NULL, NULL);
g_free (path);
return res;
}
static gboolean
thumbnail_cb (gpointer pipeline)
{
static int i = 0;
GESTimelinePipeline *p = (GESTimelinePipeline *) pipeline;
gchar *filename;
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gboolean res;
filename = g_strdup_printf ("thumbnail%d.jpg", i++);
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res = ges_timeline_pipeline_save_thumbnail (p, -1, -1,
(gchar *) "image/jpeg", filename);
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g_free (filename);
return res;
}
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static gboolean
check_path (char *path)
{
FILE *fp = fopen (path, "r");
if (fp) {
fclose (fp);
return TRUE;
}
return FALSE;
}
static gboolean
check_time (char *time)
{
static regex_t re;
static gboolean compiled = FALSE;
if (!compiled) {
compiled = TRUE;
if (regcomp (&re, "^[0-9]+(.[0-9]+)?$", REG_EXTENDED | REG_NOSUB))
return FALSE;
}
if (!regexec (&re, time, (size_t) 0, NULL, 0))
return TRUE;
return FALSE;
}
static guint64
str_to_time (char *time)
{
if (check_time (time)) {
return (guint64) (atof (time) * GST_SECOND);
}
GST_ERROR ("%s not a valid time", time);
return 0;
}
static GstEncodingProfile *
make_encoding_profile (gchar * audio, gchar * video, gchar * video_restriction,
gchar * container)
{
GstEncodingContainerProfile *profile;
GstEncodingProfile *stream;
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GstCaps *caps;
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caps = gst_caps_from_string (container);
profile =
gst_encoding_container_profile_new ((gchar *) "ges-test4", NULL, caps,
NULL);
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gst_caps_unref (caps);
caps = gst_caps_from_string (audio);
stream = (GstEncodingProfile *)
gst_encoding_audio_profile_new (caps, NULL, NULL, 0);
gst_encoding_container_profile_add_profile (profile, stream);
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gst_caps_unref (caps);
caps = gst_caps_from_string (video);
stream = (GstEncodingProfile *)
gst_encoding_video_profile_new (caps, NULL, NULL, 0);
if (video_restriction)
gst_encoding_profile_set_restriction (stream,
gst_caps_from_string (video_restriction));
gst_encoding_container_profile_add_profile (profile, stream);
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gst_caps_unref (caps);
return (GstEncodingProfile *) profile;
}
static GESTimeline *
create_timeline (int nbargs, gchar ** argv)
{
GESTimelineLayer *layer;
GESTrack *tracka, *trackv;
GESTimeline *timeline;
guint i;
timeline = ges_timeline_new ();
tracka = ges_track_audio_raw_new ();
trackv = ges_track_video_raw_new ();
/* We are only going to be doing one layer of timeline objects */
layer = (GESTimelineLayer *) ges_simple_timeline_layer_new ();
/* Add the tracks and the layer to the timeline */
if (!ges_timeline_add_layer (timeline, layer) ||
!ges_timeline_add_track (timeline, tracka) ||
!ges_timeline_add_track (timeline, trackv))
goto build_failure;
/* Here we've finished initializing our timeline, we're
* ready to start using it... by solely working with the layer !*/
for (i = 0; i < nbargs / 3; i++) {
GESTimelineObject *obj;
char *source = argv[i * 3];
char *arg0 = argv[(i * 3) + 1];
guint64 duration = str_to_time (argv[(i * 3) + 2]);
if (!g_strcmp0 ("+pattern", source)) {
obj = GES_TIMELINE_OBJECT (ges_timeline_test_source_new_for_nick (arg0));
if (!obj) {
g_error ("%s is an invalid pattern name!\n", arg0);
goto build_failure;
}
g_object_set (G_OBJECT (obj), "duration", duration, NULL);
g_printf ("Adding <pattern:%s> duration %" GST_TIME_FORMAT "\n", arg0,
GST_TIME_ARGS (duration));
}
else if (!g_strcmp0 ("+transition", source)) {
if (duration <= 0) {
g_error ("durations must be greater than 0");
goto build_failure;
}
obj =
GES_TIMELINE_OBJECT (ges_timeline_standard_transition_new_for_nick
(arg0));
if (!obj) {
g_error ("invalid transition type\n");
goto build_failure;
}
g_object_set (G_OBJECT (obj), "duration", duration, NULL);
g_printf ("Adding <transition:%s> duration %" GST_TIME_FORMAT "\n", arg0,
GST_TIME_ARGS (duration));
}
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else if (!g_strcmp0 ("+title", source)) {
obj = GES_TIMELINE_OBJECT (ges_timeline_title_source_new ());
g_object_set (obj, "duration", duration, "text", arg0, NULL);
g_printf ("Adding <title:%s> duration %" GST_TIME_FORMAT "\n", arg0,
GST_TIME_ARGS (duration));
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}
else {
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gchar *uri;
guint64 inpoint;
if (!check_path (source)) {
g_error ("'%s': could not open path!", source);
goto build_failure;
}
if (!(uri = ensure_uri (source))) {
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GST_ERROR ("couldn't create uri for '%s'", source);
goto build_failure;
}
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inpoint = str_to_time (argv[i * 3 + 1]);
obj = GES_TIMELINE_OBJECT (ges_timeline_filesource_new (uri));
g_object_set (obj,
"in-point", (guint64) inpoint, "duration", (guint64) duration, NULL);
g_printf ("Adding clip %s inpoint:%" GST_TIME_FORMAT " duration:%"
GST_TIME_FORMAT "\n", uri, GST_TIME_ARGS (inpoint),
GST_TIME_ARGS (duration));
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g_free (uri);
}
/* Since we're using a GESSimpleTimelineLayer, objects will be automatically
* appended to the end of the layer */
ges_timeline_layer_add_object (layer, obj);
}
return timeline;
build_failure:
{
g_object_unref (timeline);
return NULL;
}
}
static GESTimelinePipeline *
create_pipeline (gchar * load_path, gchar * save_path, int argc, char **argv)
{
GESTimelinePipeline *pipeline = NULL;
GESTimeline *timeline = NULL;
/* Timeline creation */
if (load_path) {
gchar *uri;
g_printf ("Loading project from : %s\n", load_path);
if (!(uri = ensure_uri (load_path))) {
g_error ("couldn't create uri for '%s'", load_path);
goto failure;
}
g_printf ("reading from '%s' (arguments ignored)\n", load_path);
if (!(timeline = ges_timeline_new_from_uri (uri))) {
g_error ("failed to create timeline from file '%s'", load_path);
goto failure;
}
g_printf ("loaded project successfully\n");
g_free (uri);
} else
/* Normal timeline creation */
if (!(timeline = create_timeline (argc, argv)))
goto failure;
/* save project if path is given. we do this now in case GES crashes or
* hangs during playback. */
if (save_path) {
gchar *uri;
if (!(uri = ensure_uri (save_path))) {
g_error ("couldn't create uri for '%s", save_path);
goto failure;
}
ges_timeline_save_to_uri (timeline, uri);
g_free (uri);
}
/* In order to view our timeline, let's grab a convenience pipeline to put
* our timeline in. */
pipeline = ges_timeline_pipeline_new ();
/* Add the timeline to that pipeline */
if (!ges_timeline_pipeline_add_timeline (pipeline, timeline))
goto failure;
return pipeline;
failure:
{
if (timeline)
g_object_unref (timeline);
if (pipeline)
g_object_unref (pipeline);
return NULL;
}
}
static void
bus_message_cb (GstBus * bus, GstMessage * message, GMainLoop * mainloop)
{
switch (GST_MESSAGE_TYPE (message)) {
case GST_MESSAGE_ERROR:
g_printerr ("ERROR\n");
seenerrors = TRUE;
g_main_loop_quit (mainloop);
break;
case GST_MESSAGE_EOS:
if (repeat > 0) {
g_printerr ("Looping again\n");
if (!gst_element_seek_simple (GST_ELEMENT (pipeline), GST_FORMAT_TIME,
GST_SEEK_FLAG_FLUSH, 0))
g_printerr ("seeking failed\n");
else
g_printerr ("seeking succeeded\n");
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
g_printerr ("Looping set\n");
repeat -= 1;
} else {
g_printerr ("Done\n");
g_main_loop_quit (mainloop);
}
break;
default:
break;
}
}
static void
print_enum (GType enum_type)
{
GEnumClass *enum_class = G_ENUM_CLASS (g_type_class_ref (enum_type));
guint i;
GST_ERROR ("%d", enum_class->n_values);
for (i = 0; i < enum_class->n_values; i++) {
g_printf ("%s\n", enum_class->values[i].value_nick);
}
g_type_class_unref (enum_class);
}
static void
print_transition_list (void)
{
print_enum (GES_VIDEO_STANDARD_TRANSITION_TYPE_TYPE);
}
static void
print_pattern_list (void)
{
print_enum (GES_VIDEO_TEST_PATTERN_TYPE);
}
int
main (int argc, gchar ** argv)
{
GError *err = NULL;
gchar *outputuri = NULL;
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gchar *container = (gchar *) "application/ogg";
gchar *audio = (gchar *) "audio/x-vorbis";
gchar *video = (gchar *) "video/x-theora";
gchar *video_restriction = (gchar *) "ANY";
static gboolean render = FALSE;
static gboolean smartrender = FALSE;
static gboolean list_transitions = FALSE;
static gboolean list_patterns = FALSE;
static gdouble thumbinterval = 0;
gchar *save_path = NULL;
gchar *load_path = NULL;
GOptionEntry options[] = {
{"thumbnail", 'm', 0.0, G_OPTION_ARG_DOUBLE, &thumbinterval,
"Take thumbnails every n seconds (saved in current directory)", "N"},
{"render", 'r', 0, G_OPTION_ARG_NONE, &render,
"Render to outputuri", NULL},
{"smartrender", 's', 0, G_OPTION_ARG_NONE, &smartrender,
"Render to outputuri, and avoid decoding/reencoding", NULL},
{"outputuri", 'o', 0, G_OPTION_ARG_STRING, &outputuri,
"URI to encode to", "URI (<protocol>://<location>)"},
{"format", 'f', 0, G_OPTION_ARG_STRING, &container,
"Container format", "<GstCaps>"},
{"vformat", 'v', 0, G_OPTION_ARG_STRING, &video,
"Video format", "<GstCaps>"},
{"aformat", 'a', 0, G_OPTION_ARG_STRING, &audio,
"Audio format", "<GstCaps>"},
{"vrestriction", 'x', 0, G_OPTION_ARG_STRING, &video_restriction,
"Video restriction", "<GstCaps>"},
{"repeat", 'l', 0, G_OPTION_ARG_INT, &repeat,
"Number of time to repeat timeline", NULL},
{"list-transitions", 't', 0, G_OPTION_ARG_NONE, &list_transitions,
"List valid transition types and exit", NULL},
{"list-patterns", 'p', 0, G_OPTION_ARG_NONE, &list_patterns,
"List patterns and exit", NULL},
{"save", 'z', 0, G_OPTION_ARG_STRING, &save_path,
"Save project to file before rendering", "<path>"},
{"load", 'q', 0, G_OPTION_ARG_STRING, &load_path,
"Load project from file before rendering", "<path>"},
{NULL}
};
GOptionContext *ctx;
GMainLoop *mainloop;
GstBus *bus;
if (!g_thread_supported ())
g_thread_init (NULL);
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ctx = g_option_context_new ("- plays or renders a timeline.");
g_option_context_set_summary (ctx,
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"A timeline is a sequence of files, patterns, and transitions.\n"
"Transitions can only go between patterns or files.\n\n"
"A file is a tripplet of:\n"
" * filename\n"
" * inpoint (in seconds)\n"
" * duration (in seconds) If 0, full file length\n\n"
"Patterns and transitions are triplets of:\n"
" * \"+pattern\" | \"+transition\"\n"
" * <type>\n" " * duration (in seconds, must be greater than 0)\n");
g_option_context_add_main_entries (ctx, options, NULL);
g_option_context_add_group (ctx, gst_init_get_option_group ());
if (!g_option_context_parse (ctx, &argc, &argv, &err)) {
g_printerr ("Error initializing: %s\n", err->message);
g_option_context_free (ctx);
exit (1);
}
/* Initialize the GStreamer Editing Services */
if (!ges_init ()) {
g_printerr ("Error initializing GES\n");
exit (1);
}
if (list_transitions) {
print_transition_list ();
exit (0);
}
if (list_patterns) {
print_pattern_list ();
exit (0);
}
if (((!load_path && (argc < 4))) || (outputuri && (!render && !smartrender))) {
g_printf ("%s", g_option_context_get_help (ctx, TRUE, NULL));
g_option_context_free (ctx);
exit (1);
}
g_option_context_free (ctx);
/* Create the pipeline */
pipeline = create_pipeline (load_path, save_path, argc - 1, argv + 1);
if (!pipeline)
exit (1);
/* Setup profile/encoding if needed */
if (render || smartrender) {
GstEncodingProfile *prof;
prof = make_encoding_profile (audio, video, video_restriction, container);
if (!prof ||
!ges_timeline_pipeline_set_render_settings (pipeline, outputuri, prof)
|| !ges_timeline_pipeline_set_mode (pipeline,
smartrender ? TIMELINE_MODE_SMART_RENDER : TIMELINE_MODE_RENDER))
exit (1);
g_free (outputuri);
gst_encoding_profile_unref (prof);
} else {
ges_timeline_pipeline_set_mode (pipeline, TIMELINE_MODE_PREVIEW);
}
/* Play the pipeline */
mainloop = g_main_loop_new (NULL, FALSE);
if (thumbinterval != 0.0) {
g_printf ("thumbnailing every %f seconds\n", thumbinterval);
g_timeout_add (1000 * thumbinterval, thumbnail_cb, pipeline);
}
bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_bus_add_signal_watch (bus);
g_signal_connect (bus, "message", G_CALLBACK (bus_message_cb), mainloop);
if (gst_element_set_state (GST_ELEMENT (pipeline),
GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE) {
g_error ("Failed to start the encoding\n");
return 1;
}
g_main_loop_run (mainloop);
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL);
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gst_object_unref (pipeline);
return (int) seenerrors;
}