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hls: add hlssink element

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This commit is contained in:
Alessandro Decina 2011-08-21 11:00:51 +02:00 committed by Robert Swain
parent 2139c81cdb
commit b1029d767e
7 changed files with 761 additions and 7 deletions
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2
configure.ac
View file

@ -314,7 +314,7 @@ GST_PLUGINS_NONPORTED=" aiff \
cdxaparse \
dccp faceoverlay \
fieldanalysis freeverb freeze frei0r \
hdvparse inter ivfparse jpegformat jp2kdecimator \
hdvparse hlssink inter ivfparse jpegformat jp2kdecimator \
kate liveadder librfb \
mpegpsmux mve mxf mythtv nsf nuvdemux \
patchdetect pnm real \

16
gst/hls/Makefile.am
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@ -6,20 +6,24 @@ libgstfragmented_la_SOURCES = \
gsthlsdemux.c \
gstfragment.c \
gsturidownloader.c \
gstm3u8playlist.c \
gsthlssink.c \
gstfragmentedplugin.c
libgstfragmented_la_CFLAGS = $(GST_PLUGINS_BAD_CFLAGS) $(GST_BASE_CFLAGS) $(GST_CFLAGS) $(SOUP_CFLAGS)
libgstfragmented_la_LIBADD = $(GST_BASE_LIBS) $(GST_LIBS) $(SOUP_LIBS)
libgstfragmented_la_CFLAGS = $(GST_PLUGINS_BAD_CFLAGS) $(GST_BASE_CFLAGS) $(GST_CFLAGS) $(SOUP_CFLAGS) $(GIO_CFLAGS)
libgstfragmented_la_LIBADD = $(GST_BASE_LIBS) $(GST_LIBS) $(SOUP_LIBS) $(GIO_LIBS) -lgstpbutils-$(GST_MAJORMINOR) -lgstvideo-$(GST_MAJORMINOR)
libgstfragmented_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) -no-undefined
libgstfragmented_la_LIBTOOLFLAGS = --tag=disable-static
# headers we need but don't want installed
noinst_HEADERS = \
gstfragmented.h \
gstfragment.h \
gstfragmented.h \
gstfragment.h \
gsthlsdemux.h \
gsturidownloader.h \
m3u8.h
gsturidownloader.h \
m3u8.h \
gstm3u8playlist.h \
gsthlssink.h
Android.mk: Makefile.am $(BUILT_SOURCES)
androgenizer \

5
gst/hls/gstfragmentedplugin.c
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@ -6,6 +6,7 @@
#include "gstfragmented.h"
#include "gsthlsdemux.h"
#include "gsthlssink.h"
GST_DEBUG_CATEGORY (fragmented_debug);
@ -17,6 +18,10 @@ fragmented_init (GstPlugin * plugin)
if (!gst_element_register (plugin, "hlsdemux", GST_RANK_PRIMARY,
GST_TYPE_HLS_DEMUX) || FALSE)
return FALSE;
if (!gst_hls_sink_plugin_init (plugin))
return FALSE;
return TRUE;
}

378
gst/hls/gsthlssink.c Normal file
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@ -0,0 +1,378 @@
/* GStreamer
* Copyright (C) 2011 Alessandro Decina <alessandro.d@gmail.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 "gsthlssink.h"
#include <gst/pbutils/pbutils.h>
#include <gst/video/video.h>
#include <gio/gio.h>
#include <glib/gstdio.h>
#include <memory.h>
GST_DEBUG_CATEGORY_STATIC (gst_hls_sink_debug);
#define GST_CAT_DEFAULT gst_hls_sink_debug
#define DEFAULT_LOCATION "segment%05d.ts"
#define DEFAULT_PLAYLIST_LOCATION "playlist.m3u8"
#define DEFAULT_PLAYLIST_ROOT NULL
#define DEFAULT_MAX_FILES 10
enum
{
PROP_0,
PROP_LOCATION,
PROP_PLAYLIST_LOCATION,
PROP_PLAYLIST_ROOT,
PROP_MAX_FILES
};
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS_ANY);
GST_BOILERPLATE (GstHlsSink, gst_hls_sink, GstBin, GST_TYPE_BIN);
static void gst_hls_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * spec);
static void gst_hls_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * spec);
static void gst_hls_sink_handle_message (GstBin * bin, GstMessage * message);
static gboolean gst_hls_sink_ghost_event_probe (GstPad * pad,
GstEvent * event, gpointer data);
static GstStateChangeReturn
gst_hls_sink_change_state (GstElement * element, GstStateChange trans);
static void
gst_hls_sink_dispose (GObject * object)
{
GstHlsSink *sink = GST_HLS_SINK_CAST (object);
if (sink->multifilesink)
g_object_unref (sink->multifilesink);
G_OBJECT_CLASS (parent_class)->dispose ((GObject *) sink);
}
static void
gst_hls_sink_finalize (GObject * object)
{
GstHlsSink *sink = GST_HLS_SINK_CAST (object);
gst_event_replace (&sink->force_key_unit_event, NULL);
g_free (sink->location);
g_free (sink->playlist_location);
g_free (sink->playlist_root);
gst_m3u8_playlist_free (sink->playlist);
G_OBJECT_CLASS (parent_class)->finalize ((GObject *) sink);
}
static void
gst_hls_sink_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_set_details_simple (element_class,
"HTTP Live Streaming sink", "Sink", "HTTP Live Streaming sink",
"Alessandro Decina <alessandro.decina@gmail.com>");
}
static void
gst_hls_sink_class_init (GstHlsSinkClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
GstBinClass *bin_class;
gobject_class = (GObjectClass *) klass;
element_class = GST_ELEMENT_CLASS (klass);
bin_class = GST_BIN_CLASS (klass);
bin_class->handle_message = gst_hls_sink_handle_message;
element_class->change_state = GST_DEBUG_FUNCPTR (gst_hls_sink_change_state);
gobject_class->dispose = gst_hls_sink_dispose;
gobject_class->finalize = gst_hls_sink_finalize;
gobject_class->set_property = gst_hls_sink_set_property;
gobject_class->get_property = gst_hls_sink_get_property;
g_object_class_install_property (gobject_class, PROP_LOCATION,
g_param_spec_string ("location", "File Location",
"Location of the file to write", DEFAULT_LOCATION,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_PLAYLIST_LOCATION,
g_param_spec_string ("playlist-location", "Playlist Location",
"Location of the playlist to write", DEFAULT_PLAYLIST_LOCATION,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_PLAYLIST_ROOT,
g_param_spec_string ("playlist-root", "Playlist Root",
"Location of the playlist to write", DEFAULT_PLAYLIST_ROOT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_MAX_FILES,
g_param_spec_uint ("max-files", "Max files",
"Maximum number of files to keep on disk. Once the maximum is reached,"
"old files start to be deleted to make room for new ones.",
0, G_MAXUINT, DEFAULT_MAX_FILES,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
static void
gst_hls_sink_init (GstHlsSink * sink, GstHlsSinkClass * sink_class)
{
GstPadTemplate *templ = gst_static_pad_template_get (&sink_template);
sink->ghostpad = gst_ghost_pad_new_no_target_from_template ("sink", templ);
gst_object_unref (templ);
gst_element_add_pad (GST_ELEMENT_CAST (sink), sink->ghostpad);
gst_pad_add_event_probe (sink->ghostpad,
G_CALLBACK (gst_hls_sink_ghost_event_probe), sink);
sink->index = 0;
sink->multifilesink = NULL;
sink->last_stream_time = 0;
sink->location = g_strdup (DEFAULT_LOCATION);
sink->playlist_location = g_strdup (DEFAULT_PLAYLIST_LOCATION);
sink->playlist_root = g_strdup (DEFAULT_PLAYLIST_ROOT);
sink->playlist = gst_m3u8_playlist_new (6, 5, FALSE);
sink->max_files = DEFAULT_MAX_FILES;
}
static gboolean
gst_hls_sink_create_elements (GstHlsSink * sink)
{
GstPad *pad = NULL;
GST_DEBUG_OBJECT (sink, "Creating internal elements");
if (sink->elements_created)
return TRUE;
sink->multifilesink = gst_element_factory_make ("multifilesink", NULL);
if (sink->multifilesink == NULL)
goto missing_element;
g_object_set (sink->multifilesink, "location", sink->location,
"next-file", 3, "post-messages", TRUE, "max-files", sink->max_files,
NULL);
gst_bin_add (GST_BIN_CAST (sink), sink->multifilesink);
pad = gst_element_get_static_pad (sink->multifilesink, "sink");
gst_ghost_pad_set_target (GST_GHOST_PAD (sink->ghostpad), pad);
gst_object_unref (pad);
sink->elements_created = TRUE;
return TRUE;
missing_element:
gst_element_post_message (GST_ELEMENT_CAST (sink),
gst_missing_element_message_new (GST_ELEMENT_CAST (sink),
"multifilesink"));
GST_ELEMENT_ERROR (sink, CORE, MISSING_PLUGIN,
(("Missing element '%s' - check your GStreamer installation."),
"multifilesink"), (NULL));
return FALSE;
}
static void
gst_hls_sink_handle_message (GstBin * bin, GstMessage * message)
{
GstHlsSink *sink = GST_HLS_SINK_CAST (bin);
switch (message->type) {
case GST_MESSAGE_ELEMENT:
{
GFile *file;
const char *filename, *title;
char *playlist_content;
GstClockTime stream_time, duration;
gboolean discont = FALSE;
GError *error = NULL;
gchar *entry_location;
if (strcmp (gst_structure_get_name (message->structure),
"GstMultiFileSink"))
break;
filename = gst_structure_get_string (message->structure, "filename");
gst_structure_get_clock_time (message->structure, "stream-time",
&stream_time);
duration = stream_time - sink->last_stream_time;
sink->last_stream_time = stream_time;
file = g_file_new_for_path (filename);
title = "ciao";
GST_INFO_OBJECT (sink, "COUNT %d", sink->index);
if (sink->playlist_root == NULL)
entry_location = g_strdup (filename);
else {
gchar *name = g_path_get_basename (filename);
entry_location = g_build_filename (sink->playlist_root, name, NULL);
g_free (name);
}
gst_m3u8_playlist_add_entry (sink->playlist, entry_location, file,
title, duration, sink->index, discont);
g_free (entry_location);
playlist_content = gst_m3u8_playlist_render (sink->playlist);
g_file_set_contents (sink->playlist_location,
playlist_content, -1, &error);
g_free (playlist_content);
break;
}
default:
break;
}
GST_BIN_CLASS (parent_class)->handle_message (bin, message);
}
static GstStateChangeReturn
gst_hls_sink_change_state (GstElement * element, GstStateChange trans)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstHlsSink *sink = GST_HLS_SINK_CAST (element);
switch (trans) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!gst_hls_sink_create_elements (sink)) {
return GST_STATE_CHANGE_FAILURE;
}
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, trans);
switch (trans) {
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static void
gst_hls_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstHlsSink *sink = GST_HLS_SINK_CAST (object);
switch (prop_id) {
case PROP_LOCATION:
g_free (sink->location);
sink->location = g_value_dup_string (value);
if (sink->multifilesink)
g_object_set (sink->multifilesink, "location", sink->location, NULL);
break;
case PROP_PLAYLIST_LOCATION:
g_free (sink->playlist_location);
sink->playlist_location = g_value_dup_string (value);
break;
case PROP_PLAYLIST_ROOT:
g_free (sink->playlist_root);
sink->playlist_root = g_value_dup_string (value);
break;
case PROP_MAX_FILES:
sink->max_files = g_value_get_uint (value);
if (sink->multifilesink) {
g_object_set (sink->multifilesink, "location", sink->location,
"next-file", 3, "post-messages", TRUE, "max-files", sink->max_files,
NULL);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_hls_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstHlsSink *sink = GST_HLS_SINK_CAST (object);
switch (prop_id) {
case PROP_LOCATION:
g_value_set_string (value, sink->location);
break;
case PROP_PLAYLIST_LOCATION:
g_value_set_string (value, sink->playlist_location);
break;
case PROP_PLAYLIST_ROOT:
g_value_set_string (value, sink->playlist_root);
break;
case PROP_MAX_FILES:
g_value_set_uint (value, sink->max_files);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_hls_sink_ghost_event_probe (GstPad * pad, GstEvent * event, gpointer data)
{
GstHlsSink *sink = GST_HLS_SINK_CAST (data);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CUSTOM_DOWNSTREAM:
{
GstClockTime timestamp;
GstClockTime running_time, stream_time;
gboolean all_headers;
guint count;
if (!gst_video_event_is_force_key_unit (event))
break;
gst_event_replace (&sink->force_key_unit_event, event);
gst_video_event_parse_downstream_force_key_unit (event,
&timestamp, &stream_time, &running_time, &all_headers, &count);
GST_INFO_OBJECT (sink, "setting index %d", count);
sink->index = count;
break;
}
default:
break;
}
return TRUE;
}
gboolean
gst_hls_sink_plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (gst_hls_sink_debug, "hlssink", 0, "HlsSink");
return gst_element_register (plugin, "hlssink", GST_RANK_NONE,
gst_hls_sink_get_type ());
}

65
gst/hls/gsthlssink.h Normal file
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@ -0,0 +1,65 @@
/* GStreamer
* Copyright (C) 2011 Alessandro Decina <alessandro.d@gmail.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.
*/
#ifndef _GST_HLS_SINK_H_
#define _GST_HLS_SINK_H_
#include "gstm3u8playlist.h"
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_TYPE_HLS_SINK (gst_hls_sink_get_type())
#define GST_HLS_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_HLS_SINK,GstHlsSink))
#define GST_HLS_SINK_CAST(obj) ((GstHlsSink *) obj)
#define GST_HLS_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_HLS_SINK,GstHlsSinkClass))
#define GST_IS_HLS_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_HLS_SINK))
#define GST_IS_HLS_SINK_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_HLS_SINK))
typedef struct _GstHlsSink GstHlsSink;
typedef struct _GstHlsSinkClass GstHlsSinkClass;
struct _GstHlsSink
{
GstBin bin;
GstPad *ghostpad;
GstElement *multifilesink;
gboolean elements_created;
GstEvent *force_key_unit_event;
GstClockTime last_stream_time;
gchar *location;
gchar *playlist_location;
gchar *playlist_root;
GstM3U8Playlist *playlist;
guint index;
gint max_files;
};
struct _GstHlsSinkClass
{
GstBinClass bin_class;
};
GType gst_hls_sink_get_type (void);
gboolean gst_hls_sink_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif

228
gst/hls/gstm3u8playlist.c Normal file
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@ -0,0 +1,228 @@
/* GStreamer
* Copyright (C) 2011 Andoni Morales Alastruey <ylatuya@gmail.com>
*
* gstm3u8playlist.c:
*
* 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.
*/
#include <glib.h>
#include "gstfragmented.h"
#include "gstm3u8playlist.h"
#define GST_CAT_DEFAULT fragmented_debug
#define M3U8_HEADER_TAG "#EXTM3U\n"
#define M3U8_VERSION_TAG "#EXT-X-VERSION:%d\n"
#define M3U8_TARGETDURATION_TAG "#EXT-X-TARGETDURATION:%d\n"
#define M3U8_MEDIA_SEQUENCE_TAG "#EXT-X-MEDIA-SEQUENCE:%d\n"
#define M3U8_DISCONTINUITY_TAG "#EXT-X-DISCONTINUITY\n"
#define M3U8_INT_INF_TAG "#EXTINF:%d,%s\n%s\n"
#define M3U8_FLOAT_INF_TAG "#EXTINF:%.2f,%s\n%s\n"
#define M3U8_ENDLIST_TAG "#EXT-X-ENDLIST"
enum
{
GST_M3U8_PLAYLIST_TYPE_EVENT,
GST_M3U8_PLAYLIST_TYPE_VOD,
};
static GstM3U8Entry *
gst_m3u8_entry_new (const gchar * url, GFile * file, const gchar * title,
gfloat duration, gboolean discontinuous)
{
GstM3U8Entry *entry;
g_return_val_if_fail (url != NULL, NULL);
g_return_val_if_fail (title != NULL, NULL);
entry = g_new0 (GstM3U8Entry, 1);
entry->url = g_strdup (url);
entry->title = g_strdup (title);
entry->duration = duration;
entry->file = file;
entry->discontinuous = discontinuous;
return entry;
}
static void
gst_m3u8_entry_free (GstM3U8Entry * entry)
{
g_return_if_fail (entry != NULL);
g_free (entry->url);
g_free (entry->title);
if (entry->file != NULL)
g_object_unref (entry->file);
g_free (entry);
}
static gchar *
gst_m3u8_entry_render (GstM3U8Entry * entry, guint version)
{
g_return_val_if_fail (entry != NULL, NULL);
/* FIXME: Ensure the radix is always a '.' and not a ',' when printing
* floating point number, but for now only use integers*/
/* if (version < 3) */
if (TRUE)
return g_strdup_printf ("%s" M3U8_INT_INF_TAG,
entry->discontinuous ? M3U8_DISCONTINUITY_TAG : "",
(gint) (entry->duration / GST_SECOND), entry->title, entry->url);
return g_strdup_printf ("%s" M3U8_FLOAT_INF_TAG,
entry->discontinuous ? M3U8_DISCONTINUITY_TAG : "",
(entry->duration / GST_SECOND), entry->title, entry->url);
}
GstM3U8Playlist *
gst_m3u8_playlist_new (guint version, guint window_size, gboolean allow_cache)
{
GstM3U8Playlist *playlist;
playlist = g_new0 (GstM3U8Playlist, 1);
playlist->version = version;
playlist->window_size = window_size;
playlist->allow_cache = allow_cache;
playlist->type = GST_M3U8_PLAYLIST_TYPE_EVENT;
playlist->end_list = FALSE;
playlist->entries = g_queue_new ();
return playlist;
}
void
gst_m3u8_playlist_free (GstM3U8Playlist * playlist)
{
g_return_if_fail (playlist != NULL);
g_queue_foreach (playlist->entries, (GFunc) gst_m3u8_entry_free, NULL);
g_queue_free (playlist->entries);
g_free (playlist);
}
GList *
gst_m3u8_playlist_add_entry (GstM3U8Playlist * playlist,
const gchar * url, GFile * file, const gchar * title,
gfloat duration, guint index, gboolean discontinuous)
{
GstM3U8Entry *entry;
GList *old_files = NULL;
g_return_val_if_fail (playlist != NULL, FALSE);
g_return_val_if_fail (url != NULL, FALSE);
g_return_val_if_fail (title != NULL, FALSE);
if (playlist->type == GST_M3U8_PLAYLIST_TYPE_VOD)
return FALSE;
entry = gst_m3u8_entry_new (url, file, title, duration, discontinuous);
if (playlist->window_size != -1) {
/* Delete old entries from the playlist */
while (playlist->entries->length >= playlist->window_size) {
GstM3U8Entry *old_entry;
old_entry = g_queue_pop_head (playlist->entries);
g_object_ref (old_entry->file);
old_files = g_list_prepend (old_files, old_entry->file);
gst_m3u8_entry_free (old_entry);
}
}
playlist->sequence_number = index + 1;
g_queue_push_tail (playlist->entries, entry);
return old_files;
}
static guint
gst_m3u8_playlist_target_duration (GstM3U8Playlist * playlist)
{
gint i;
GstM3U8Entry *entry;
guint64 target_duration = 0;
for (i = 0; i < playlist->entries->length; i++) {
entry = (GstM3U8Entry *) g_queue_peek_nth (playlist->entries, i);
if (entry->duration > target_duration)
target_duration = entry->duration;
}
return (guint) (target_duration / GST_SECOND);
}
static void
render_entry (GstM3U8Entry * entry, GstM3U8Playlist * playlist)
{
gchar *entry_str;
entry_str = gst_m3u8_entry_render (entry, playlist->version);
g_string_append_printf (playlist->playlist_str, "%s", entry_str);
g_free (entry_str);
}
gchar *
gst_m3u8_playlist_render (GstM3U8Playlist * playlist)
{
gchar *pl;
g_return_val_if_fail (playlist != NULL, NULL);
playlist->playlist_str = g_string_new ("");
/* #EXTM3U */
g_string_append_printf (playlist->playlist_str, M3U8_HEADER_TAG);
/* #EXT-X-VERSION */
// g_string_append_printf (playlist->playlist_str, M3U8_VERSION_TAG,
// playlist->version);
/* #EXT-X-MEDIA-SEQUENCE */
g_string_append_printf (playlist->playlist_str, M3U8_MEDIA_SEQUENCE_TAG,
playlist->sequence_number - playlist->entries->length);
/* #EXT-X-TARGETDURATION */
g_string_append_printf (playlist->playlist_str, M3U8_TARGETDURATION_TAG,
gst_m3u8_playlist_target_duration (playlist));
g_string_append_printf (playlist->playlist_str, "\n");
/* Entries */
g_queue_foreach (playlist->entries, (GFunc) render_entry, playlist);
if (playlist->end_list)
g_string_append_printf (playlist->playlist_str, M3U8_ENDLIST_TAG);
pl = playlist->playlist_str->str;
g_string_free (playlist->playlist_str, FALSE);
return pl;
}
void
gst_m3u8_playlist_clear (GstM3U8Playlist * playlist)
{
g_return_if_fail (playlist != NULL);
g_queue_foreach (playlist->entries, (GFunc) gst_m3u8_entry_free, NULL);
g_queue_clear (playlist->entries);
}
guint
gst_m3u8_playlist_n_entries (GstM3U8Playlist * playlist)
{
g_return_val_if_fail (playlist != NULL, 0);
return playlist->entries->length;
}

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/* GStreamer
* Copyright (C) 2011 Andoni Morales Alastruey <ylatuya@gmail.com>
*
* gstm3u8playlist.h:
*
* 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.
*/
#ifndef __GST_M3U8_PLAYLIST_H__
#define __GST_M3U8_PLAYLIST_H__
#include <glib.h>
#include <gio/gio.h>
G_BEGIN_DECLS
typedef struct _GstM3U8Playlist GstM3U8Playlist;
typedef struct _GstM3U8Entry GstM3U8Entry;
struct _GstM3U8Entry
{
gfloat duration;
gchar *title;
gchar *url;
GFile *file;
gboolean discontinuous;
};
struct _GstM3U8Playlist
{
guint version;
gboolean allow_cache;
gint window_size;
gint type;
gboolean end_list;
guint sequence_number;
/*< Private >*/
GQueue *entries;
GString *playlist_str;
};
GstM3U8Playlist * gst_m3u8_playlist_new (guint version,
guint window_size,
gboolean allow_cache);
void gst_m3u8_playlist_free (GstM3U8Playlist * playlist);
GList * gst_m3u8_playlist_add_entry (GstM3U8Playlist * playlist,
const gchar * url,
GFile * file,
const gchar *title,
gfloat duration,
guint index,
gboolean discontinuous);
gchar * gst_m3u8_playlist_render (GstM3U8Playlist * playlist);
void gst_m3u8_playlist_clear (GstM3U8Playlist * playlist);
guint gst_m3u8_playlist_n_entries (GstM3U8Playlist * playlist);
G_END_DECLS
#endif /* __M3U8_H__ */