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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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920 lines
22 KiB
C
920 lines
22 KiB
C
/* GStreamer
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* Copyright (C) 2010 Marc-Andre Lureau <marcandre.lureau@gmail.com>
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*
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* m3u8.c:
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <stdlib.h>
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#include <math.h>
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#include <errno.h>
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#include <glib.h>
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#include <string.h>
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#include "gstfragmented.h"
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#include "m3u8.h"
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#define GST_CAT_DEFAULT fragmented_debug
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static GstM3U8 *gst_m3u8_new (void);
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static void gst_m3u8_free (GstM3U8 * m3u8);
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static gboolean gst_m3u8_update (GstM3U8 * m3u8, gchar * data,
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gboolean * updated);
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static GstM3U8MediaFile *gst_m3u8_media_file_new (gchar * uri,
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gchar * title, GstClockTime duration, guint sequence);
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static void gst_m3u8_media_file_free (GstM3U8MediaFile * self);
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gchar *uri_join (const gchar * uri, const gchar * path);
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static GstM3U8 *
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gst_m3u8_new (void)
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{
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GstM3U8 *m3u8;
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m3u8 = g_new0 (GstM3U8, 1);
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return m3u8;
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}
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static void
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gst_m3u8_set_uri (GstM3U8 * self, gchar * uri)
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{
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g_return_if_fail (self != NULL);
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if (self->uri)
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g_free (self->uri);
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self->uri = uri;
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}
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static void
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gst_m3u8_free (GstM3U8 * self)
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{
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g_return_if_fail (self != NULL);
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g_free (self->uri);
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g_free (self->allowcache);
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g_free (self->codecs);
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g_free (self->key);
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g_list_foreach (self->files, (GFunc) gst_m3u8_media_file_free, NULL);
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g_list_free (self->files);
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g_free (self->last_data);
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g_list_foreach (self->lists, (GFunc) gst_m3u8_free, NULL);
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g_list_free (self->lists);
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g_free (self);
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}
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static GstM3U8MediaFile *
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gst_m3u8_media_file_new (gchar * uri, gchar * title, GstClockTime duration,
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guint sequence)
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{
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GstM3U8MediaFile *file;
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file = g_new0 (GstM3U8MediaFile, 1);
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file->uri = uri;
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file->title = title;
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file->duration = duration;
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file->sequence = sequence;
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return file;
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}
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static void
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gst_m3u8_media_file_free (GstM3U8MediaFile * self)
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{
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g_return_if_fail (self != NULL);
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g_free (self->title);
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g_free (self->uri);
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g_free (self->key);
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g_free (self);
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}
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static gboolean
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int_from_string (gchar * ptr, gchar ** endptr, gint * val)
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{
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gchar *end;
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gint64 ret;
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g_return_val_if_fail (ptr != NULL, FALSE);
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g_return_val_if_fail (val != NULL, FALSE);
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errno = 0;
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ret = g_ascii_strtoll (ptr, &end, 10);
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if ((errno == ERANGE && (ret == G_MAXINT64 || ret == G_MININT64))
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|| (errno != 0 && ret == 0)) {
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GST_WARNING ("%s", g_strerror (errno));
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return FALSE;
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}
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if (ret > G_MAXINT || ret < G_MININT) {
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GST_WARNING ("%s", g_strerror (ERANGE));
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return FALSE;
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}
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if (endptr)
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*endptr = end;
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*val = (gint) ret;
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return end != ptr;
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}
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static gboolean
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int64_from_string (gchar * ptr, gchar ** endptr, gint64 * val)
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{
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gchar *end;
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gint64 ret;
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g_return_val_if_fail (ptr != NULL, FALSE);
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g_return_val_if_fail (val != NULL, FALSE);
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errno = 0;
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ret = g_ascii_strtoll (ptr, &end, 10);
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if ((errno == ERANGE && (ret == G_MAXINT64 || ret == G_MININT64))
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|| (errno != 0 && ret == 0)) {
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GST_WARNING ("%s", g_strerror (errno));
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return FALSE;
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}
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if (endptr)
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*endptr = end;
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*val = ret;
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return end != ptr;
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}
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static gboolean
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double_from_string (gchar * ptr, gchar ** endptr, gdouble * val)
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{
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gchar *end;
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gdouble ret;
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g_return_val_if_fail (ptr != NULL, FALSE);
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g_return_val_if_fail (val != NULL, FALSE);
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errno = 0;
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ret = g_ascii_strtod (ptr, &end);
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if ((errno == ERANGE && (ret == HUGE_VAL || ret == -HUGE_VAL))
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|| (errno != 0 && ret == 0)) {
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GST_WARNING ("%s", g_strerror (errno));
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return FALSE;
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}
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if (!isfinite (ret)) {
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GST_WARNING ("%s", g_strerror (ERANGE));
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return FALSE;
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}
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if (endptr)
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*endptr = end;
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*val = (gdouble) ret;
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return end != ptr;
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}
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static gboolean
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parse_attributes (gchar ** ptr, gchar ** a, gchar ** v)
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{
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gchar *end = NULL, *p;
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g_return_val_if_fail (ptr != NULL, FALSE);
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g_return_val_if_fail (*ptr != NULL, FALSE);
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g_return_val_if_fail (a != NULL, FALSE);
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g_return_val_if_fail (v != NULL, FALSE);
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/* [attribute=value,]* */
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*a = *ptr;
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end = p = g_utf8_strchr (*ptr, -1, ',');
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if (end) {
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gchar *q = g_utf8_strchr (*ptr, -1, '"');
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if (q && q < end) {
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/* special case, such as CODECS="avc1.77.30, mp4a.40.2" */
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q = g_utf8_next_char (q);
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if (q) {
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q = g_utf8_strchr (q, -1, '"');
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}
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if (q) {
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end = p = g_utf8_strchr (q, -1, ',');
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}
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}
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}
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if (end) {
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do {
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end = g_utf8_next_char (end);
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} while (end && *end == ' ');
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*p = '\0';
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}
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*v = p = g_utf8_strchr (*ptr, -1, '=');
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if (*v) {
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*v = g_utf8_next_char (*v);
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*p = '\0';
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} else {
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GST_WARNING ("missing = after attribute");
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return FALSE;
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}
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*ptr = end;
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return TRUE;
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}
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static gint
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_m3u8_compare_uri (GstM3U8 * a, gchar * uri)
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{
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g_return_val_if_fail (a != NULL, 0);
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g_return_val_if_fail (uri != NULL, 0);
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return g_strcmp0 (a->uri, uri);
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}
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static gint
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gst_m3u8_compare_playlist_by_bitrate (gconstpointer a, gconstpointer b)
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{
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return ((GstM3U8 *) (a))->bandwidth - ((GstM3U8 *) (b))->bandwidth;
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}
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/*
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* @data: a m3u8 playlist text data, taking ownership
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*/
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static gboolean
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gst_m3u8_update (GstM3U8 * self, gchar * data, gboolean * updated)
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{
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gint val;
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GstClockTime duration;
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gchar *title, *end;
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gboolean discontinuity = FALSE;
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GstM3U8 *list;
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gboolean have_iv = FALSE;
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guint8 iv[16] = { 0, };
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gint64 size = -1, offset = -1;
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g_return_val_if_fail (self != NULL, FALSE);
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g_return_val_if_fail (data != NULL, FALSE);
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g_return_val_if_fail (updated != NULL, FALSE);
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*updated = TRUE;
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/* check if the data changed since last update */
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if (self->last_data && g_str_equal (self->last_data, data)) {
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GST_DEBUG ("Playlist is the same as previous one");
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*updated = FALSE;
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g_free (data);
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return TRUE;
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}
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if (!g_str_has_prefix (data, "#EXTM3U")) {
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GST_WARNING ("Data doesn't start with #EXTM3U");
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*updated = FALSE;
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g_free (data);
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return FALSE;
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}
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g_free (self->last_data);
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self->last_data = data;
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if (self->files) {
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g_list_foreach (self->files, (GFunc) gst_m3u8_media_file_free, NULL);
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g_list_free (self->files);
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self->files = NULL;
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}
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list = NULL;
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duration = 0;
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title = NULL;
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data += 7;
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while (TRUE) {
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gchar *r;
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end = g_utf8_strchr (data, -1, '\n');
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if (end)
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*end = '\0';
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r = g_utf8_strchr (data, -1, '\r');
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if (r)
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*r = '\0';
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if (data[0] != '#' && data[0] != '\0') {
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if (duration <= 0 && list == NULL) {
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GST_LOG ("%s: got line without EXTINF or EXTSTREAMINF, dropping", data);
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goto next_line;
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}
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data = uri_join (self->uri, data);
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if (data == NULL)
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goto next_line;
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if (list != NULL) {
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if (g_list_find_custom (self->lists, data,
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(GCompareFunc) _m3u8_compare_uri)) {
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GST_DEBUG ("Already have a list with this URI");
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gst_m3u8_free (list);
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g_free (data);
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} else {
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gst_m3u8_set_uri (list, data);
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self->lists = g_list_append (self->lists, list);
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}
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list = NULL;
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} else {
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GstM3U8MediaFile *file;
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file =
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gst_m3u8_media_file_new (data, title, duration,
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self->mediasequence++);
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/* set encryption params */
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file->key = g_strdup (self->key);
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if (file->key) {
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if (have_iv) {
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memcpy (file->iv, iv, sizeof (iv));
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} else {
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guint8 *iv = file->iv + 12;
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GST_WRITE_UINT32_BE (iv + 12, file->sequence);
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}
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}
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if (size != -1) {
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file->size = size;
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if (offset != -1) {
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file->offset = offset;
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} else {
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GstM3U8MediaFile *prev =
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self->files ? g_list_last (self->files)->data : NULL;
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if (!prev) {
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offset = 0;
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} else {
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offset = prev->offset + prev->size;
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}
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}
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} else {
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file->size = -1;
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file->offset = 0;
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}
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file->discont = discontinuity;
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duration = 0;
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title = NULL;
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discontinuity = FALSE;
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size = offset = -1;
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self->files = g_list_append (self->files, file);
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}
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} else if (g_str_has_prefix (data, "#EXT-X-ENDLIST")) {
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self->endlist = TRUE;
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} else if (g_str_has_prefix (data, "#EXT-X-VERSION:")) {
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if (int_from_string (data + 15, &data, &val))
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self->version = val;
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} else if (g_str_has_prefix (data, "#EXT-X-STREAM-INF:")) {
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gchar *v, *a;
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if (list != NULL) {
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GST_WARNING ("Found a list without a uri..., dropping");
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gst_m3u8_free (list);
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}
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list = gst_m3u8_new ();
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data = data + 18;
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while (data && parse_attributes (&data, &a, &v)) {
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if (g_str_equal (a, "BANDWIDTH")) {
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if (!int_from_string (v, NULL, &list->bandwidth))
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GST_WARNING ("Error while reading BANDWIDTH");
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} else if (g_str_equal (a, "PROGRAM-ID")) {
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if (!int_from_string (v, NULL, &list->program_id))
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GST_WARNING ("Error while reading PROGRAM-ID");
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} else if (g_str_equal (a, "CODECS")) {
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g_free (list->codecs);
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list->codecs = g_strdup (v);
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} else if (g_str_equal (a, "RESOLUTION")) {
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if (!int_from_string (v, &v, &list->width))
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GST_WARNING ("Error while reading RESOLUTION width");
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if (!v || *v != 'x') {
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GST_WARNING ("Missing height");
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} else {
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v = g_utf8_next_char (v);
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if (!int_from_string (v, NULL, &list->height))
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GST_WARNING ("Error while reading RESOLUTION height");
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}
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}
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}
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} else if (g_str_has_prefix (data, "#EXT-X-TARGETDURATION:")) {
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if (int_from_string (data + 22, &data, &val))
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self->targetduration = val * GST_SECOND;
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} else if (g_str_has_prefix (data, "#EXT-X-MEDIA-SEQUENCE:")) {
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if (int_from_string (data + 22, &data, &val))
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self->mediasequence = val;
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} else if (g_str_has_prefix (data, "#EXT-X-DISCONTINUITY")) {
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discontinuity = TRUE;
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} else if (g_str_has_prefix (data, "#EXT-X-PROGRAM-DATE-TIME:")) {
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/* <YYYY-MM-DDThh:mm:ssZ> */
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GST_DEBUG ("FIXME parse date");
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} else if (g_str_has_prefix (data, "#EXT-X-ALLOW-CACHE:")) {
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g_free (self->allowcache);
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self->allowcache = g_strdup (data + 19);
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} else if (g_str_has_prefix (data, "#EXT-X-KEY:")) {
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gchar *v, *a;
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data = data + 11;
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/* IV and KEY are only valid until the next #EXT-X-KEY */
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have_iv = FALSE;
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g_free (self->key);
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self->key = NULL;
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while (data && parse_attributes (&data, &a, &v)) {
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if (g_str_equal (a, "URI")) {
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gchar *key = g_strdup (v);
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gchar *keyp = key;
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int len = strlen (key);
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/* handle the \"key\" case */
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if (key[len - 1] == '"')
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key[len - 1] = '\0';
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if (key[0] == '"')
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key += 1;
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self->key = uri_join (self->uri, key);
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g_free (keyp);
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} else if (g_str_equal (a, "IV")) {
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gchar *ivp = v;
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gint i;
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if (strlen (ivp) < 32 + 2 || (!g_str_has_prefix (ivp, "0x")
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&& !g_str_has_prefix (ivp, "0X"))) {
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GST_WARNING ("Can't read IV");
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continue;
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}
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ivp += 2;
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for (i = 0; i < 16; i++) {
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gint h, l;
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h = g_ascii_xdigit_value (*ivp);
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ivp++;
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l = g_ascii_xdigit_value (*ivp);
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ivp++;
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if (h == -1 || l == -1) {
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i = -1;
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break;
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}
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iv[i] = (h << 4) | l;
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}
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if (i == -1) {
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GST_WARNING ("Can't read IV");
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continue;
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}
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have_iv = TRUE;
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} else if (g_str_equal (a, "METHOD")) {
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if (!g_str_equal (v, "AES-128")) {
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GST_WARNING ("Encryption method %s not supported", v);
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continue;
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}
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}
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}
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} else if (g_str_has_prefix (data, "#EXTINF:")) {
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gdouble fval;
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if (!double_from_string (data + 8, &data, &fval)) {
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GST_WARNING ("Can't read EXTINF duration");
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goto next_line;
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}
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duration = fval * (gdouble) GST_SECOND;
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if (duration > self->targetduration)
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GST_WARNING ("EXTINF duration > TARGETDURATION");
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if (!data || *data != ',')
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goto next_line;
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data = g_utf8_next_char (data);
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if (data != end) {
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g_free (title);
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title = g_strdup (data);
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}
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} else if (g_str_has_prefix (data, "#EXT-X-BYTERANGE:")) {
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gchar *v = data + 17;
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|
if (int64_from_string (v, &v, &size)) {
|
|
if (*v == '@' && !int64_from_string (v + 1, &v, &offset))
|
|
goto next_line;
|
|
} else {
|
|
goto next_line;
|
|
}
|
|
} else {
|
|
GST_LOG ("Ignored line: %s", data);
|
|
}
|
|
|
|
next_line:
|
|
if (!end)
|
|
break;
|
|
data = g_utf8_next_char (end); /* skip \n */
|
|
}
|
|
|
|
/* redorder playlists by bitrate */
|
|
if (self->lists) {
|
|
gchar *top_variant_uri = NULL;
|
|
|
|
if (!self->current_variant)
|
|
top_variant_uri = GST_M3U8 (self->lists->data)->uri;
|
|
else
|
|
top_variant_uri = GST_M3U8 (self->current_variant->data)->uri;
|
|
|
|
self->lists =
|
|
g_list_sort (self->lists,
|
|
(GCompareFunc) gst_m3u8_compare_playlist_by_bitrate);
|
|
|
|
self->current_variant = g_list_find_custom (self->lists, top_variant_uri,
|
|
(GCompareFunc) _m3u8_compare_uri);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
GstM3U8Client *
|
|
gst_m3u8_client_new (const gchar * uri)
|
|
{
|
|
GstM3U8Client *client;
|
|
|
|
g_return_val_if_fail (uri != NULL, NULL);
|
|
|
|
client = g_new0 (GstM3U8Client, 1);
|
|
client->main = gst_m3u8_new ();
|
|
client->current = NULL;
|
|
client->sequence = -1;
|
|
client->sequence_position = 0;
|
|
client->update_failed_count = 0;
|
|
g_mutex_init (&client->lock);
|
|
gst_m3u8_set_uri (client->main, g_strdup (uri));
|
|
|
|
return client;
|
|
}
|
|
|
|
void
|
|
gst_m3u8_client_free (GstM3U8Client * self)
|
|
{
|
|
g_return_if_fail (self != NULL);
|
|
|
|
gst_m3u8_free (self->main);
|
|
g_mutex_clear (&self->lock);
|
|
g_free (self);
|
|
}
|
|
|
|
void
|
|
gst_m3u8_client_set_current (GstM3U8Client * self, GstM3U8 * m3u8)
|
|
{
|
|
g_return_if_fail (self != NULL);
|
|
|
|
GST_M3U8_CLIENT_LOCK (self);
|
|
if (m3u8 != self->current) {
|
|
self->current = m3u8;
|
|
self->update_failed_count = 0;
|
|
}
|
|
GST_M3U8_CLIENT_UNLOCK (self);
|
|
}
|
|
|
|
gboolean
|
|
gst_m3u8_client_update (GstM3U8Client * self, gchar * data)
|
|
{
|
|
GstM3U8 *m3u8;
|
|
gboolean updated = FALSE;
|
|
gboolean ret = FALSE;
|
|
|
|
g_return_val_if_fail (self != NULL, FALSE);
|
|
|
|
GST_M3U8_CLIENT_LOCK (self);
|
|
m3u8 = self->current ? self->current : self->main;
|
|
|
|
if (!gst_m3u8_update (m3u8, data, &updated))
|
|
goto out;
|
|
|
|
if (!updated) {
|
|
self->update_failed_count++;
|
|
goto out;
|
|
}
|
|
|
|
if (self->current && !self->current->files) {
|
|
GST_ERROR ("Invalid media playlist, it does not contain any media files");
|
|
goto out;
|
|
}
|
|
|
|
/* select the first playlist, for now */
|
|
if (!self->current) {
|
|
if (self->main->lists) {
|
|
self->current = self->main->current_variant->data;
|
|
} else {
|
|
self->current = self->main;
|
|
}
|
|
}
|
|
|
|
if (m3u8->files && self->sequence == -1) {
|
|
self->sequence =
|
|
GST_M3U8_MEDIA_FILE (g_list_first (m3u8->files)->data)->sequence;
|
|
self->sequence_position = 0;
|
|
GST_DEBUG ("Setting first sequence at %d", self->sequence);
|
|
}
|
|
|
|
ret = TRUE;
|
|
out:
|
|
GST_M3U8_CLIENT_UNLOCK (self);
|
|
return ret;
|
|
}
|
|
|
|
static gint
|
|
_find_current (GstM3U8MediaFile * file, GstM3U8Client * client)
|
|
{
|
|
return file->sequence == client->sequence;
|
|
}
|
|
|
|
static gboolean
|
|
_find_next (GstM3U8MediaFile * file, GstM3U8Client * client)
|
|
{
|
|
GST_DEBUG ("Found fragment %d", file->sequence);
|
|
if (file->sequence >= client->sequence)
|
|
return FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
gst_m3u8_client_get_next_fragment (GstM3U8Client * client,
|
|
gboolean * discontinuity, const gchar ** uri, GstClockTime * duration,
|
|
GstClockTime * timestamp, gint64 * range_start, gint64 * range_end,
|
|
const gchar ** key, const guint8 ** iv)
|
|
{
|
|
GList *l;
|
|
GstM3U8MediaFile *file;
|
|
|
|
g_return_val_if_fail (client != NULL, FALSE);
|
|
g_return_val_if_fail (client->current != NULL, FALSE);
|
|
|
|
GST_M3U8_CLIENT_LOCK (client);
|
|
GST_DEBUG ("Looking for fragment %d", client->sequence);
|
|
l = g_list_find_custom (client->current->files, client,
|
|
(GCompareFunc) _find_next);
|
|
if (l == NULL) {
|
|
GST_M3U8_CLIENT_UNLOCK (client);
|
|
return FALSE;
|
|
}
|
|
|
|
file = GST_M3U8_MEDIA_FILE (l->data);
|
|
GST_DEBUG ("Got fragment with sequence %u (client sequence %u)",
|
|
file->sequence, client->sequence);
|
|
|
|
if (timestamp)
|
|
*timestamp = client->sequence_position;
|
|
|
|
if (discontinuity)
|
|
*discontinuity = client->sequence != file->sequence || file->discont;
|
|
if (uri)
|
|
*uri = file->uri;
|
|
if (duration)
|
|
*duration = file->duration;
|
|
if (range_start)
|
|
*range_start = file->offset;
|
|
if (range_end)
|
|
*range_end = file->size != -1 ? file->offset + file->size - 1 : -1;
|
|
if (key)
|
|
*key = file->key;
|
|
if (iv)
|
|
*iv = file->iv;
|
|
|
|
GST_M3U8_CLIENT_UNLOCK (client);
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
gst_m3u8_client_advance_fragment (GstM3U8Client * client)
|
|
{
|
|
GList *l;
|
|
GstM3U8MediaFile *file;
|
|
|
|
g_return_if_fail (client != NULL);
|
|
g_return_if_fail (client->current != NULL);
|
|
|
|
GST_M3U8_CLIENT_LOCK (client);
|
|
GST_DEBUG ("Looking for fragment %d", client->sequence);
|
|
l = g_list_find_custom (client->current->files, client,
|
|
(GCompareFunc) _find_next);
|
|
if (l == NULL) {
|
|
GST_ERROR ("Could not find current fragment");
|
|
GST_M3U8_CLIENT_UNLOCK (client);
|
|
return;
|
|
}
|
|
|
|
file = GST_M3U8_MEDIA_FILE (l->data);
|
|
GST_DEBUG ("Advancing from sequence %u", file->sequence);
|
|
client->sequence = file->sequence + 1;
|
|
client->sequence_position += file->duration;
|
|
GST_M3U8_CLIENT_UNLOCK (client);
|
|
}
|
|
|
|
static void
|
|
_sum_duration (GstM3U8MediaFile * self, GstClockTime * duration)
|
|
{
|
|
*duration += self->duration;
|
|
}
|
|
|
|
GstClockTime
|
|
gst_m3u8_client_get_duration (GstM3U8Client * client)
|
|
{
|
|
GstClockTime duration = 0;
|
|
|
|
g_return_val_if_fail (client != NULL, GST_CLOCK_TIME_NONE);
|
|
|
|
GST_M3U8_CLIENT_LOCK (client);
|
|
/* We can only get the duration for on-demand streams */
|
|
if (!client->current->endlist) {
|
|
GST_M3U8_CLIENT_UNLOCK (client);
|
|
return GST_CLOCK_TIME_NONE;
|
|
}
|
|
if (client->current && client->current->files)
|
|
g_list_foreach (client->current->files, (GFunc) _sum_duration, &duration);
|
|
GST_M3U8_CLIENT_UNLOCK (client);
|
|
return duration;
|
|
}
|
|
|
|
GstClockTime
|
|
gst_m3u8_client_get_target_duration (GstM3U8Client * client)
|
|
{
|
|
GstClockTime duration = 0;
|
|
|
|
g_return_val_if_fail (client != NULL, GST_CLOCK_TIME_NONE);
|
|
|
|
GST_M3U8_CLIENT_LOCK (client);
|
|
duration = client->current->targetduration;
|
|
GST_M3U8_CLIENT_UNLOCK (client);
|
|
return duration;
|
|
}
|
|
|
|
const gchar *
|
|
gst_m3u8_client_get_uri (GstM3U8Client * client)
|
|
{
|
|
const gchar *uri;
|
|
|
|
g_return_val_if_fail (client != NULL, NULL);
|
|
|
|
GST_M3U8_CLIENT_LOCK (client);
|
|
uri = client->main->uri;
|
|
GST_M3U8_CLIENT_UNLOCK (client);
|
|
return uri;
|
|
}
|
|
|
|
const gchar *
|
|
gst_m3u8_client_get_current_uri (GstM3U8Client * client)
|
|
{
|
|
const gchar *uri;
|
|
|
|
g_return_val_if_fail (client != NULL, NULL);
|
|
|
|
GST_M3U8_CLIENT_LOCK (client);
|
|
uri = client->current->uri;
|
|
GST_M3U8_CLIENT_UNLOCK (client);
|
|
return uri;
|
|
}
|
|
|
|
gboolean
|
|
gst_m3u8_client_has_variant_playlist (GstM3U8Client * client)
|
|
{
|
|
gboolean ret;
|
|
|
|
g_return_val_if_fail (client != NULL, FALSE);
|
|
|
|
GST_M3U8_CLIENT_LOCK (client);
|
|
ret = (client->main->lists != NULL);
|
|
GST_M3U8_CLIENT_UNLOCK (client);
|
|
return ret;
|
|
}
|
|
|
|
gboolean
|
|
gst_m3u8_client_is_live (GstM3U8Client * client)
|
|
{
|
|
gboolean ret;
|
|
|
|
g_return_val_if_fail (client != NULL, FALSE);
|
|
|
|
GST_M3U8_CLIENT_LOCK (client);
|
|
if (!client->current || client->current->endlist)
|
|
ret = FALSE;
|
|
else
|
|
ret = TRUE;
|
|
GST_M3U8_CLIENT_UNLOCK (client);
|
|
return ret;
|
|
}
|
|
|
|
GList *
|
|
gst_m3u8_client_get_playlist_for_bitrate (GstM3U8Client * client, guint bitrate)
|
|
{
|
|
GList *list, *current_variant;
|
|
|
|
GST_M3U8_CLIENT_LOCK (client);
|
|
current_variant = client->main->current_variant;
|
|
|
|
/* Go to the highest possible bandwidth allowed */
|
|
while (GST_M3U8 (current_variant->data)->bandwidth <= bitrate) {
|
|
list = g_list_next (current_variant);
|
|
if (!list)
|
|
break;
|
|
current_variant = list;
|
|
}
|
|
|
|
while (GST_M3U8 (current_variant->data)->bandwidth > bitrate) {
|
|
list = g_list_previous (current_variant);
|
|
if (!list)
|
|
break;
|
|
current_variant = list;
|
|
}
|
|
GST_M3U8_CLIENT_UNLOCK (client);
|
|
|
|
return current_variant;
|
|
}
|
|
|
|
gchar *
|
|
uri_join (const gchar * uri1, const gchar * uri2)
|
|
{
|
|
gchar *uri_copy, *tmp, *ret = NULL;
|
|
|
|
if (gst_uri_is_valid (uri2))
|
|
return g_strdup (uri2);
|
|
|
|
uri_copy = g_strdup (uri1);
|
|
if (uri2[0] != '/') {
|
|
/* uri2 is a relative uri2 */
|
|
/* look for query params */
|
|
tmp = g_utf8_strchr (uri_copy, -1, '?');
|
|
if (tmp) {
|
|
/* find last / char, ignoring query params */
|
|
tmp = g_utf8_strrchr (uri_copy, tmp - uri_copy, '/');
|
|
} else {
|
|
/* find last / char in URL */
|
|
tmp = g_utf8_strrchr (uri_copy, -1, '/');
|
|
}
|
|
if (!tmp) {
|
|
GST_WARNING ("Can't build a valid uri_copy");
|
|
goto out;
|
|
}
|
|
|
|
*tmp = '\0';
|
|
ret = g_strdup_printf ("%s/%s", uri_copy, uri2);
|
|
} else {
|
|
/* uri2 is an absolute uri2 */
|
|
char *scheme, *hostname;
|
|
|
|
scheme = uri_copy;
|
|
/* find the : in <scheme>:// */
|
|
tmp = g_utf8_strchr (uri_copy, -1, ':');
|
|
if (!tmp) {
|
|
GST_WARNING ("Can't build a valid uri_copy");
|
|
goto out;
|
|
}
|
|
|
|
*tmp = '\0';
|
|
|
|
/* skip :// */
|
|
hostname = tmp + 3;
|
|
|
|
tmp = g_utf8_strchr (hostname, -1, '/');
|
|
if (tmp)
|
|
*tmp = '\0';
|
|
|
|
ret = g_strdup_printf ("%s://%s%s", scheme, hostname, uri2);
|
|
}
|
|
|
|
out:
|
|
g_free (uri_copy);
|
|
return ret;
|
|
}
|
|
|
|
guint64
|
|
gst_m3u8_client_get_current_fragment_duration (GstM3U8Client * client)
|
|
{
|
|
guint64 dur;
|
|
GList *list;
|
|
|
|
g_return_val_if_fail (client != NULL, 0);
|
|
|
|
GST_M3U8_CLIENT_LOCK (client);
|
|
|
|
list = g_list_find_custom (client->current->files, client,
|
|
(GCompareFunc) _find_current);
|
|
if (list == NULL) {
|
|
dur = -1;
|
|
} else {
|
|
dur = GST_M3U8_MEDIA_FILE (list->data)->duration;
|
|
}
|
|
|
|
GST_M3U8_CLIENT_UNLOCK (client);
|
|
return dur;
|
|
}
|