tools: Implement a new CLI interface for the timeline creation

This commit is contained in:
Thibault Saunier 2015-02-19 18:28:41 +01:00
parent 2ffa9477e9
commit ecf167e95e
2 changed files with 201 additions and 144 deletions

View file

@ -27,6 +27,7 @@
#include <glib.h>
#include <glib/gprintf.h>
#include <ges/ges.h>
#include "../ges/ges-structured-interface.h"
#include <gst/pbutils/encoding-profile.h>
#include <locale.h> /* for LC_ALL */
@ -177,50 +178,197 @@ project_loaded_cb (GESProject * project, GESTimeline * timeline)
}
}
static gboolean
check_time (char *time)
static gint /* -1: not present, 0: failure, 1: OK */
_convert_to_clocktime (GstStructure * structure, const gchar * name,
GstClockTime default_value)
{
static GRegex *re = NULL;
gint res = 1;
gdouble val;
GValue d_val = { 0 };
GstClockTime timestamp;
const GValue *gvalue = gst_structure_get_value (structure, name);
if (!re) {
if (NULL == (re = g_regex_new ("^[0-9]+(.[0-9]+)?$", G_REGEX_EXTENDED, 0,
NULL)))
return FALSE;
if (gvalue == NULL) {
timestamp = default_value;
res = -1;
goto done;
}
if (g_regex_match (re, time, 0, NULL))
return TRUE;
return FALSE;
if (G_VALUE_TYPE (gvalue) == GST_TYPE_CLOCK_TIME)
return 1;
g_value_init (&d_val, G_TYPE_DOUBLE);
if (!g_value_transform (gvalue, &d_val)) {
GST_ERROR ("Could not get timestamp for %s", name);
return 0;
}
val = g_value_get_double ((const GValue *) &d_val);
if (val == -1.0)
timestamp = GST_CLOCK_TIME_NONE;
else
timestamp = val * GST_SECOND;
done:
gst_structure_set (structure, name, G_TYPE_UINT64, timestamp, NULL);
return res;
}
static guint64
str_to_time (char *time)
typedef struct
{
gdouble nsecs;
const gchar *long_name;
const gchar *short_name;
GType type;
const gchar *new_name;
} Properties;
g_return_val_if_fail (check_time (time), 0);
nsecs = g_ascii_strtod (time, NULL);
return nsecs * GST_SECOND;
}
static void
_clip_added_cb (GESLayer * layer, GESClip * clip, GESAsset * asset)
static gboolean
_cleanup_fields (const Properties * filed_names, GstStructure * structure,
GError ** error)
{
if (GES_IS_TRANSITION_CLIP (clip))
ges_extractable_set_asset (GES_EXTRACTABLE (clip), asset);
guint i;
for (i = 0; filed_names[i].long_name; i++) {
gboolean exists = FALSE;
/* Move shortly named fields to longname variante */
if (gst_structure_has_field (structure, filed_names[i].short_name)) {
exists = TRUE;
if (gst_structure_has_field (structure, filed_names[i].long_name)) {
*error = g_error_new (GES_ERROR, 0, "Using short and long name"
" at the same time for property: %s, which one should I use?!",
filed_names[i].long_name);
return FALSE;
} else {
const GValue *val =
gst_structure_get_value (structure, filed_names[i].short_name);
gst_structure_set_value (structure, filed_names[i].long_name, val);
gst_structure_remove_field (structure, filed_names[i].short_name);
}
} else if (gst_structure_has_field (structure, filed_names[i].long_name)) {
exists = TRUE;
}
if (exists) {
if (filed_names[i].type == GST_TYPE_CLOCK_TIME) {
if (_convert_to_clocktime (structure, filed_names[i].long_name, 0) == 0) {
*error = g_error_new (GES_ERROR, 0, "Could not convert"
" %s to GstClockTime", filed_names[i].long_name);
return FALSE;
}
}
}
if (filed_names[i].new_name
&& gst_structure_has_field (structure, filed_names[i].long_name)) {
const GValue *val =
gst_structure_get_value (structure, filed_names[i].long_name);
gst_structure_set_value (structure, filed_names[i].new_name, val);
gst_structure_remove_field (structure, filed_names[i].long_name);
}
}
return TRUE;
}
static gboolean
_add_clip (GESTimeline * timeline, GstStructure * structure, GError ** error)
{
const Properties filed_names[] = {
{"uri", "n", 0, "asset-id"},
{"name", "n", 0, NULL},
{"start", "s", GST_TYPE_CLOCK_TIME, NULL},
{"duration", "d", GST_TYPE_CLOCK_TIME, NULL},
{"inpoint", "i", GST_TYPE_CLOCK_TIME, NULL},
{"track-types", "tt", 0, NULL},
{NULL},
};
if (!_cleanup_fields (filed_names, structure, error))
return FALSE;
gst_structure_set (structure, "type", G_TYPE_STRING, "GESUriClip", NULL);
GST_ERROR ("Adding a clip %" GST_PTR_FORMAT, structure);
return _ges_add_add_clip_from_struct (timeline, structure, error);
}
static gboolean
_add_effect (GESTimeline * timeline, GstStructure * structure, GError ** error)
{
const Properties filed_names[] = {
{"element-name", "e", 0, NULL},
{"bin-description", "d", 0, "asset-id"},
{"name", "n", 0, "child-name"},
{NULL, NULL, 0, NULL},
};
if (!_cleanup_fields (filed_names, structure, error))
return FALSE;
gst_structure_set (structure, "child-type", G_TYPE_STRING, "GESEffect", NULL);
GST_ERROR ("Adding a clip %" GST_PTR_FORMAT, structure);
return _ges_container_add_child_from_struct (timeline, structure, error);
}
static gboolean
_set_child_property (GESTimeline * timeline, GstStructure * structure,
GError ** error)
{
return _ges_set_child_property_from_struct (timeline, structure, error);
}
static GOptionEntry timeline_parsing_options[] = {
{"clip", 'c', 0.0, G_OPTION_ARG_CALLBACK, &_add_clip,
"Adds a clip in the timeline",
" start - s: The start position of the element inside the layer.\n"
" duration - d: The duration of the clip.\n"
" inpoint - i: The inpoint of the clip\n."
" track-types - tt: The type of the tracks where the clip should be used:\n"
" Examples:\n"
" * audio / a\n"
" * video / v\n"
" * audio+video / a+v\n"
" Will default to all the media types in the clip that match the global track-types"},
{"effect", 'e', 0.0, G_OPTION_ARG_CALLBACK, &_add_effect,
"Adds an effect as decribed by 'bin-description'",
" bin-description - d: The description of the effect bin with a gst-launch-style pipeline description."
" element-name - d: The name of the element to apply the effect on."
/* TODO: Implement that:
* " start - s: The start position of the element inside the layer -- implies creation of effect *Clip*.\n"
* " duration - d: The duration of the clip -- implies creation of effect *Clip*.\n"
* " inpoint - i: The inpoint of the clip-- implies creation of effect *Clip*.\n" */
},
};
#define EXEC(func,structure,error) G_STMT_START { \
gboolean res = ((ActionFromStructureFunc)func)(timeline, structure, error); \
if (!res) {\
GST_ERROR ("Could not execute: %" GST_PTR_FORMAT ", error: %s", structure, (*error)->message); \
goto build_failure; \
} \
} G_STMT_END
static GESTimeline *
create_timeline (int nbargs, gchar ** argv, const gchar * proj_uri,
create_timeline (GList * structures, const gchar * proj_uri,
const gchar * scenario)
{
GESLayer *layer = NULL;
GESTrack *tracka = NULL, *trackv = NULL;
guint i;
GList *tmp;
GESTimeline *timeline;
guint i, clip_added_sigid = 0;
GstClockTime next_trans_dur = 0;
GESTrack *tracka = NULL, *trackv = NULL;
GESProject *project = ges_project_new (proj_uri);
g_signal_connect (project, "error-loading-asset",
@ -258,114 +406,24 @@ create_timeline (int nbargs, gchar ** argv, const gchar * proj_uri,
/* Here we've finished initializing our timeline, we're
* ready to start using it... by solely working with the layer !*/
for (tmp = structures; tmp; tmp = tmp->next) {
const gchar *name = gst_structure_get_name (tmp->data);
GError *error = NULL;
for (i = 0; i < nbargs / 3; i++) {
GESClip *clip;
char *source = argv[i * 3];
char *arg0 = argv[(i * 3) + 1];
guint64 duration = str_to_time (argv[(i * 3) + 2]);
if (i == 0) {
/* We are only going to be doing one layer of clips */
layer = (GESLayer *) ges_layer_new ();
/* Add the tracks and the layer to the timeline */
if (!ges_timeline_add_layer (timeline, layer))
goto build_failure;
}
if (duration == 0)
duration = GST_CLOCK_TIME_NONE;
if (!g_strcmp0 ("+pattern", source)) {
clip = GES_CLIP (ges_test_clip_new_for_nick (arg0));
if (!clip) {
g_error ("%s is an invalid pattern name!\n", arg0);
goto build_failure;
}
g_object_set (G_OBJECT (clip), "duration", duration, NULL);
g_printf ("Adding <pattern:%s> duration %" GST_TIME_FORMAT "\n", arg0,
GST_TIME_ARGS (duration));
}
else if (!g_strcmp0 ("+transition", source)) {
GESAsset *asset =
ges_asset_request (GES_TYPE_TRANSITION_CLIP, arg0, NULL);
if (asset == NULL) {
g_warning ("Can not create transition %s", arg0);
}
next_trans_dur = duration;
clip_added_sigid = g_signal_connect (layer, "clip-added",
(GCallback) _clip_added_cb, asset);
if (g_str_has_prefix (name, "set-")) {
EXEC (_set_child_property, tmp->data, &error);
continue;
} else if (!g_strcmp0 ("+title", source)) {
clip = GES_CLIP (ges_title_clip_new ());
g_object_set (clip, "duration", duration, "text", arg0, NULL);
g_printf ("Adding <title:%s> duration %" GST_TIME_FORMAT "\n", arg0,
GST_TIME_ARGS (duration));
}
else {
gchar *uri;
GESAsset *asset;
guint64 inpoint;
GError *error = NULL;
if (!(uri = ensure_uri (source))) {
GST_ERROR ("couldn't create uri for '%s'", source);
goto build_failure;
for (i = 0; i < G_N_ELEMENTS (timeline_parsing_options); i++) {
if (gst_structure_has_name (tmp->data,
timeline_parsing_options[i].long_name)
|| (strlen (name) == 1 &&
*name == timeline_parsing_options[i].short_name)) {
EXEC (((ActionFromStructureFunc) timeline_parsing_options[i].arg_data),
tmp->data, &error);
}
inpoint = str_to_time (argv[i * 3 + 1]);
asset = GES_ASSET (ges_uri_clip_asset_request_sync (uri, &error));
if (error) {
g_printerr ("Can not create asset for %s", uri);
return NULL;
}
ges_project_add_asset (project, asset);
clip = GES_CLIP (ges_asset_extract (asset, &error));
if (error) {
g_printerr ("Can not extract asset for %s", uri);
return NULL;
}
if (!GST_CLOCK_TIME_IS_VALID (duration))
duration =
GES_TIMELINE_ELEMENT_DURATION (clip) - (GstClockTime) inpoint;
g_object_set (clip,
"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));
g_free (uri);
}
g_object_set (G_OBJECT (clip), "start",
ges_layer_get_duration (layer) - next_trans_dur, NULL);
ges_layer_add_clip (layer, clip);
if (clip_added_sigid) {
g_signal_handler_disconnect (layer, clip_added_sigid);
clip_added_sigid = 0;
next_trans_dur = 0;
}
}
done:
@ -396,7 +454,7 @@ _save_timeline (GESTimeline * timeline, const gchar * load_path)
static GESPipeline *
create_pipeline (GESTimeline ** ret_timeline, gchar * load_path,
int argc, char **argv, const gchar * scenario)
GList * structures, const gchar * scenario)
{
gchar *uri = NULL;
GESTimeline *timeline = NULL;
@ -413,7 +471,7 @@ create_pipeline (GESTimeline ** ret_timeline, gchar * load_path,
pipeline = ges_pipeline_new ();
if (!(timeline = create_timeline (argc, argv, uri, scenario)))
if (!(timeline = create_timeline (structures, uri, scenario)))
goto failure;
if (!load_path)
@ -897,15 +955,6 @@ main (int argc, gchar ** argv)
exit (1);
}
parser = _parse_timeline (argc, argv);
{
GList *tmp;
for (tmp = parser->structures; tmp; tmp = tmp->next) {
/* Do stuff here */
}
}
if (list_transitions) {
print_transition_list ();
exit (0);
@ -920,7 +969,7 @@ main (int argc, gchar ** argv)
return ges_validate_print_action_types ((const gchar **) argv + 1,
argc - 1);
if (((!load_path && !scenario && (argc < 4)))) {
if (((!load_path && !scenario && (argc < 1)))) {
g_printf ("%s", g_option_context_get_help (ctx, TRUE, NULL));
g_option_context_free (ctx);
exit (1);
@ -929,7 +978,8 @@ main (int argc, gchar ** argv)
g_option_context_free (ctx);
/* Create the pipeline */
create_pipeline (&timeline, load_path, argc - 1, argv + 1, scenario);
parser = _parse_timeline (argc, argv);
create_pipeline (&timeline, load_path, parser->structures, scenario);
if (!pipeline)
exit (1);

View file

@ -76,6 +76,13 @@ _finish_structure (GESStructureParser * self)
if (self->current_string) {
GstStructure *structure =
gst_structure_new_from_string (self->current_string);
if (structure == NULL) {
GST_ERROR ("Error creating structure from %s", self->current_string);
return;
}
self->structures = g_list_append (self->structures, structure);
g_free (self->current_string);
self->current_string = NULL;