gstreamer/tests/examples/playlist.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 <stdlib.h>
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#include <string.h>
#include <glib.h>
#include <ges/ges.h>
#include <gst/profile/gstprofile.h>
/* GLOBAL VARIABLE */
static guint repeat = 0;
GESTimelinePipeline *pipeline = NULL;
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/* create a table of a subset of the test patterns available from videotestsrc
*/
typedef struct _pattern
{
char *name;
int value;
} pattern;
pattern patterns[] = {
{"smpte", 0},
{"snow", 1},
{"black", 2},
{"white", 3},
{"red", 4},
{"green", 5},
{"blue", 6},
};
#define N_PATTERNS 7
#define INVALID_PATTERN -1
/* and a function to get the pattern for the source */
int
pattern_for_name (char *name)
{
size_t length = strlen (name);
if (g_str_has_prefix (name, "<pattern:") && (name[length - 1] == '>')) {
int i;
/* FIXME: just use a regex for god's sake... */
size_t substrlen = length - 10;
char *tmp = strdup (name + 9);
tmp[substrlen] = '\0';
for (i = 0; i < N_PATTERNS; i++) {
pattern *p = &patterns[i];
if (!g_strcmp0 (p->name, tmp)) {
return patterns[i].value;
}
}
free (tmp);
}
return INVALID_PATTERN;
}
gboolean
pattern_source_fill_func (GESTimelineObject * object,
GESTrackObject * trobject, GstElement * gnlobj, gpointer user_data)
{
guint pattern = GPOINTER_TO_UINT (user_data);
GESTrack *track = trobject->track;
GstElement *testsrc;
g_assert (track);
if ((track->type) == GES_TRACK_TYPE_VIDEO) {
testsrc = gst_element_factory_make ("videotestsrc", NULL);
g_object_set (testsrc, "pattern", pattern, NULL);
} else if ((track->type) == GES_TRACK_TYPE_AUDIO) {
testsrc = gst_element_factory_make ("audiotestsrc", NULL);
g_object_set (testsrc, "freq", 440.0, NULL);
} else
return FALSE;
return gst_bin_add (GST_BIN (gnlobj), testsrc);
}
GESCustomTimelineSource *
pattern_source_new (guint pattern)
{
return ges_custom_timeline_source_new (pattern_source_fill_func,
GUINT_TO_POINTER (pattern));
}
static GstEncodingProfile *
make_encoding_profile (gchar * audio, gchar * video, gchar * video_restriction,
gchar * container)
{
GstEncodingProfile *profile;
GstStreamEncodingProfile *stream;
profile = gst_encoding_profile_new ("ges-test4",
gst_caps_from_string (container), NULL, FALSE);
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stream =
gst_stream_encoding_profile_new (GST_ENCODING_PROFILE_AUDIO,
gst_caps_from_string (audio), NULL, NULL, 0);
gst_encoding_profile_add_stream (profile, stream);
stream = gst_stream_encoding_profile_new (GST_ENCODING_PROFILE_VIDEO,
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gst_caps_from_string (video),
NULL, gst_caps_from_string (video_restriction), 0);
gst_encoding_profile_add_stream (profile, stream);
return profile;
}
static GESTimelinePipeline *
create_timeline (int nbargs, gchar ** argv)
{
GESTimelinePipeline *pipeline;
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))
return NULL;
/* 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++) {
gchar *uri = g_strdup_printf ("file://%s", argv[i * 3]);
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GESTimelineSource *src;
guint64 inpoint = atoi (argv[i * 3 + 1]) * GST_SECOND;
guint64 duration = atoi (argv[i * 3 + 2]) * GST_SECOND;
g_print ("Adding %s inpoint:%" GST_TIME_FORMAT " duration:%" GST_TIME_FORMAT
"\n", uri, GST_TIME_ARGS (inpoint), GST_TIME_ARGS (duration));
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int pattern;
if ((pattern = pattern_for_name (argv[i * 3])) != INVALID_PATTERN) {
src = GES_TIMELINE_SOURCE (pattern_source_new (pattern));
g_assert (src);
} else {
gchar *uri = g_strdup_printf ("file://%s", argv[i * 3]);
src = GES_TIMELINE_SOURCE (ges_timeline_filesource_new (uri));
g_assert (src);
g_free (uri);
}
g_object_set (src,
"in-point", (long) (atof (argv[i * 3 + 1]) * GST_SECOND),
"duration", (long) (atof (argv[i * 3 + 2]) * GST_SECOND), NULL);
/* Since we're using a GESSimpleTimelineLayer, objects will be automatically
* appended to the end of the layer */
ges_timeline_layer_add_object (layer, (GESTimelineObject *) src);
}
/* 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))
return NULL;
return pipeline;
}
static void
bus_message_cb (GstBus * bus, GstMessage * message, GMainLoop * mainloop)
{
switch (GST_MESSAGE_TYPE (message)) {
case GST_MESSAGE_ERROR:
g_print ("ERROR\n");
g_main_loop_quit (mainloop);
break;
case GST_MESSAGE_EOS:
if (repeat > 0) {
g_print ("Looping again\n");
/* No need to change state before */
gst_element_seek_simple (GST_ELEMENT (pipeline), GST_FORMAT_TIME,
GST_SEEK_FLAG_FLUSH, 0);
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
repeat -= 1;
} else {
g_print ("Done\n");
g_main_loop_quit (mainloop);
}
break;
default:
break;
}
}
int
main (int argc, gchar ** argv)
{
GError *err = NULL;
gchar *outputuri = NULL;
gchar *container = "application/ogg";
gchar *audio = "audio/x-vorbis";
gchar *video = "video/x-theora";
gchar *video_restriction = "ANY";
static gboolean render = FALSE;
static gboolean smartrender = FALSE;
GOptionEntry options[] = {
{"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", 't', 0, G_OPTION_ARG_INT, &repeat,
"Number of time to repeat timeline", NULL},
{NULL}
};
GOptionContext *ctx;
GMainLoop *mainloop;
GstBus *bus;
if (!g_thread_supported ())
g_thread_init (NULL);
ctx = g_option_context_new ("- plays/render a list of files");
g_option_context_set_summary (ctx,
"If not specified, this example will playback the files\n" "\n"
"The files should be layed out in triplets of:\n" " * filename\n"
" * inpoint (in seconds)\n"
" * duration (in seconds) If 0, full file length");
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_print ("Error initializing: %s\n", err->message);
g_option_context_free (ctx);
exit (1);
}
if ((argc < 4) || (outputuri && (!render && !smartrender))) {
g_print ("outputuri:%s, render:%d, smartrender:%d, argc:%d\n",
outputuri, render, smartrender, argc);
g_print ("%s", g_option_context_get_help (ctx, TRUE, NULL));
g_option_context_free (ctx);
exit (-1);
}
g_option_context_free (ctx);
/* Initialize the GStreamer Editing Services */
ges_init ();
/* Create the pipeline */
pipeline = create_timeline (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);
} else {
ges_timeline_pipeline_set_mode (pipeline, TIMELINE_MODE_PREVIEW);
}
/* Play the pipeline */
mainloop = g_main_loop_new (NULL, FALSE);
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_print ("Failed to start the encoding\n");
return 1;
}
g_main_loop_run (mainloop);
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL);
return 0;
}