gstreamer/tools/utils.c

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/* GStreamer Editing Services
* Copyright (C) 2015 Mathieu Duponchelle <mathieu.duponchelle@opencreed.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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <stdlib.h>
#include <glib/gprintf.h>
#include <string.h>
#include <gst/gst.h>
#include "utils.h"
#define IS_ALPHANUM(c) (g_ascii_isalnum((c)) || ((c) == '-') || ((c) == '+'))
/* g_free after usage */
static gchar *
_sanitize_argument (gchar * arg)
{
gboolean has_non_alphanum = FALSE;
char *equal_index = strstr (arg, "=");
gchar *new_string, *tmp_string;
for (tmp_string = arg; *tmp_string != '\0'; tmp_string++) {
if (!IS_ALPHANUM (*tmp_string)) {
has_non_alphanum = TRUE;
break;
}
}
if (!has_non_alphanum)
return g_strdup (arg);
if (!equal_index)
return g_strdup_printf ("\"%s\"", arg);
tmp_string = new_string = g_malloc (sizeof (gchar) * (strlen (arg) + 3));
for (; *arg != '\0'; arg++) {
*tmp_string = *arg;
tmp_string += 1;
if (*arg == '=') {
*tmp_string = '"';
tmp_string += 1;
}
}
*tmp_string = '"';
tmp_string += 1;
*tmp_string = '\0';
return new_string;
}
gchar *
sanitize_timeline_description (gchar ** args)
{
gint i;
gchar *string = g_strdup (" ");
for (i = 1; args[i]; i++) {
gchar *new_string;
gchar *sanitized = _sanitize_argument (args[i]);
new_string = g_strconcat (string, " ", sanitized, NULL);
g_free (sanitized);
g_free (string);
string = new_string;
}
return string;
}
gboolean
get_flags_from_string (GType type, const gchar * str_flags, guint * flags)
{
GValue value = G_VALUE_INIT;
g_value_init (&value, type);
if (!gst_value_deserialize (&value, str_flags)) {
g_value_unset (&value);
return FALSE;
}
*flags = g_value_get_flags (&value);
g_value_unset (&value);
return TRUE;
}
gchar *
ensure_uri (const gchar * location)
{
if (gst_uri_is_valid (location))
return g_strdup (location);
else
return gst_filename_to_uri (location, NULL);
}
GstEncodingProfile *
parse_encoding_profile (const gchar * format)
{
GstEncodingProfile *profile;
GValue value = G_VALUE_INIT;
g_value_init (&value, GST_TYPE_ENCODING_PROFILE);
if (!gst_value_deserialize (&value, format)) {
g_value_reset (&value);
return NULL;
}
profile = g_value_dup_object (&value);
g_value_reset (&value);
return profile;
}
void
print_enum (GType enum_type)
{
GEnumClass *enum_class = G_ENUM_CLASS (g_type_class_ref (enum_type));
guint i;
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);
}
void
print (GstDebugColorFlags c, gboolean err, gboolean nline, const gchar * format,
va_list var_args)
{
GString *str = g_string_new (NULL);
GstDebugColorMode color_mode;
gchar *color = NULL;
const gchar *clear = NULL;
color_mode = gst_debug_get_color_mode ();
#ifdef G_OS_WIN32
if (color_mode == GST_DEBUG_COLOR_MODE_UNIX) {
#else
if (color_mode != GST_DEBUG_COLOR_MODE_OFF) {
#endif
clear = "\033[00m";
color = gst_debug_construct_term_color (c);
}
if (color) {
g_string_append (str, color);
g_free (color);
}
g_string_append_vprintf (str, format, var_args);
if (nline)
g_string_append_c (str, '\n');
if (clear)
g_string_append (str, clear);
if (err)
g_printerr ("%s", str->str);
else
g_print ("%s", str->str);
g_string_free (str, TRUE);
}
void
ok (const gchar * format, ...)
{
va_list var_args;
va_start (var_args, format);
print (GST_DEBUG_FG_GREEN, FALSE, TRUE, format, var_args);
va_end (var_args);
}
void
warn (const gchar * format, ...)
{
va_list var_args;
va_start (var_args, format);
print (GST_DEBUG_FG_YELLOW, TRUE, TRUE, format, var_args);
va_end (var_args);
}
void
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printerr (const gchar * format, ...)
{
va_list var_args;
va_start (var_args, format);
print (GST_DEBUG_FG_RED, TRUE, TRUE, format, var_args);
va_end (var_args);
}
gchar *
get_file_extension (gchar * uri)
{
size_t len;
gint find;
len = strlen (uri);
find = len - 1;
while (find >= 0) {
if (uri[find] == '.')
break;
find--;
}
if (find <= 0)
return NULL;
return &uri[find + 1];
}
static const gchar *
get_profile_type (GstEncodingProfile * profile)
{
if (GST_IS_ENCODING_CONTAINER_PROFILE (profile))
return "Container";
else if (GST_IS_ENCODING_AUDIO_PROFILE (profile))
return "Audio";
else if (GST_IS_ENCODING_VIDEO_PROFILE (profile))
return "Video";
else
return "Unkonwn";
}
static void
print_profile (GstEncodingProfile * profile, const gchar * prefix)
{
const gchar *name = gst_encoding_profile_get_name (profile);
const gchar *desc = gst_encoding_profile_get_description (profile);
GstCaps *format = gst_encoding_profile_get_format (profile);
gchar *capsdesc;
if (gst_caps_is_fixed (format))
capsdesc = gst_pb_utils_get_codec_description (format);
else
capsdesc = gst_caps_to_string (format);
g_print ("%s%s: %s%s%s%s%s%s\n", prefix, get_profile_type (profile),
name ? name : capsdesc, desc ? ": " : "", desc ? desc : "",
name ? " (" : "", name ? capsdesc : "", name ? ")" : "");
gst_caps_unref (format);
g_free (capsdesc);
}
void
describe_encoding_profile (GstEncodingProfile * profile)
{
g_return_if_fail (GST_IS_ENCODING_PROFILE (profile));
print_profile (profile, " ");
if (GST_IS_ENCODING_CONTAINER_PROFILE (profile)) {
const GList *tmp;
for (tmp =
gst_encoding_container_profile_get_profiles
(GST_ENCODING_CONTAINER_PROFILE (profile)); tmp; tmp = tmp->next)
print_profile (tmp->data, " - ");
}
}