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hlsdemux: Always use the redirect target to resolve relative URIs

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But redownload the playlists from the original URI if it's not
a permanent redirect.
This commit is contained in:
Sebastian Dröge 2014-05-28 10:19:40 +02:00
parent 8372fa6ecc
commit 2f39a3d711
3 changed files with 46 additions and 26 deletions
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42
ext/hls/gsthlsdemux.c
View file

@ -105,7 +105,7 @@ static gboolean gst_hls_demux_update_playlist (GstHLSDemux * demux,
gboolean update, GError ** err);
static void gst_hls_demux_reset (GstHLSDemux * demux, gboolean dispose);
static gboolean gst_hls_demux_set_location (GstHLSDemux * demux,
const gchar * uri);
const gchar * uri, const gchar * base_uri);
static gchar *gst_hls_src_buf_to_utf8_playlist (GstBuffer * buf);
static gboolean gst_hls_demux_change_playlist (GstHLSDemux * demux,
@ -572,7 +572,6 @@ gst_hls_demux_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
GstHLSDemux *demux;
GstQuery *query;
gboolean ret;
gchar *uri;
demux = GST_HLS_DEMUX (parent);
@ -592,18 +591,19 @@ gst_hls_demux_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
ret = gst_pad_peer_query (demux->sinkpad, query);
if (ret) {
gboolean permanent;
gchar *uri, *redirect_uri;
gst_query_parse_uri_redirection (query, &uri);
gst_query_parse_uri (query, &uri);
gst_query_parse_uri_redirection (query, &redirect_uri);
gst_query_parse_uri_redirection_permanent (query, &permanent);
/* Only use the redirect target for permanent redirects */
if (!permanent || uri == NULL) {
g_free (uri);
gst_query_parse_uri (query, &uri);
if (permanent) {
gst_hls_demux_set_location (demux, redirect_uri, redirect_uri);
} else {
gst_hls_demux_set_location (demux, uri, redirect_uri);
}
gst_hls_demux_set_location (demux, uri);
g_free (uri);
g_free (redirect_uri);
}
gst_query_unref (query);
@ -1291,7 +1291,7 @@ gst_hls_demux_reset (GstHLSDemux * demux, gboolean dispose)
}
if (!dispose) {
demux->client = gst_m3u8_client_new ("");
demux->client = gst_m3u8_client_new ("", NULL);
}
gst_segment_init (&demux->segment, GST_FORMAT_TIME);
@ -1324,12 +1324,14 @@ gst_hls_demux_reset (GstHLSDemux * demux, gboolean dispose)
}
static gboolean
gst_hls_demux_set_location (GstHLSDemux * demux, const gchar * uri)
gst_hls_demux_set_location (GstHLSDemux * demux, const gchar * uri,
const gchar * base_uri)
{
if (demux->client)
gst_m3u8_client_free (demux->client);
demux->client = gst_m3u8_client_new (uri);
GST_INFO_OBJECT (demux, "Changed location: %s", uri);
demux->client = gst_m3u8_client_new (uri, base_uri);
GST_INFO_OBJECT (demux, "Changed location: %s (base uri: %s)", uri,
GST_STR_NULL (base_uri));
return TRUE;
}
@ -1489,7 +1491,6 @@ gst_hls_demux_update_playlist (GstHLSDemux * demux, gboolean update,
GstBuffer *buf;
gchar *playlist;
gboolean updated = FALSE;
const gchar *uri = gst_m3u8_client_get_current_uri (demux->client);
download =
@ -1499,6 +1500,19 @@ gst_hls_demux_update_playlist (GstHLSDemux * demux, gboolean update,
if (download == NULL)
return FALSE;
/* Set the base URI of the playlist to the redirect target if any */
GST_M3U8_CLIENT_LOCK (demux->client);
g_free (demux->client->current->uri);
g_free (demux->client->current->base_uri);
if (download->redirect_permanent) {
demux->client->current->uri = g_strdup (download->redirect_uri);
demux->client->current->base_uri = NULL;
} else {
demux->client->current->uri = g_strdup (download->uri);
demux->client->current->base_uri = g_strdup (download->redirect_uri);
}
GST_M3U8_CLIENT_UNLOCK (demux->client);
buf = gst_fragment_get_buffer (download);
playlist = gst_hls_src_buf_to_utf8_playlist (buf);
g_object_unref (download);

24
ext/hls/m3u8.c
View file

@ -50,13 +50,15 @@ gst_m3u8_new (void)
}
static void
gst_m3u8_set_uri (GstM3U8 * self, gchar * uri)
gst_m3u8_set_uri (GstM3U8 * self, gchar * uri, gchar * base_uri)
{
g_return_if_fail (self != NULL);
if (self->uri)
g_free (self->uri);
g_free (self->uri);
self->uri = uri;
g_free (self->base_uri);
self->base_uri = base_uri;
}
static void
@ -65,6 +67,7 @@ gst_m3u8_free (GstM3U8 * self)
g_return_if_fail (self != NULL);
g_free (self->uri);
g_free (self->base_uri);
g_free (self->codecs);
g_free (self->key);
@ -322,7 +325,7 @@ gst_m3u8_update (GstM3U8 * self, gchar * data, gboolean * updated)
goto next_line;
}
data = uri_join (self->uri, data);
data = uri_join (self->base_uri ? self->base_uri : self->uri, data);
if (data == NULL)
goto next_line;
@ -333,7 +336,7 @@ gst_m3u8_update (GstM3U8 * self, gchar * data, gboolean * updated)
gst_m3u8_free (list);
g_free (data);
} else {
gst_m3u8_set_uri (list, data);
gst_m3u8_set_uri (list, data, NULL);
self->lists = g_list_append (self->lists, list);
}
list = NULL;
@ -427,12 +430,12 @@ gst_m3u8_update (GstM3U8 * self, gchar * data, gboolean * updated)
if (uri[0] == '"')
uri += 1;
uri = uri_join (self->uri, uri);
uri = uri_join (self->base_uri ? self->base_uri : self->uri, uri);
g_free (urip);
if (uri == NULL)
continue;
gst_m3u8_set_uri (new_list, uri);
gst_m3u8_set_uri (new_list, uri, NULL);
}
}
@ -484,7 +487,8 @@ gst_m3u8_update (GstM3U8 * self, gchar * data, gboolean * updated)
if (key[0] == '"')
key += 1;
self->key = uri_join (self->uri, key);
self->key =
uri_join (self->base_uri ? self->base_uri : self->uri, key);
g_free (keyp);
} else if (g_str_equal (a, "IV")) {
gchar *ivp = v;
@ -591,7 +595,7 @@ gst_m3u8_update (GstM3U8 * self, gchar * data, gboolean * updated)
}
GstM3U8Client *
gst_m3u8_client_new (const gchar * uri)
gst_m3u8_client_new (const gchar * uri, const gchar * base_uri)
{
GstM3U8Client *client;
@ -604,7 +608,7 @@ gst_m3u8_client_new (const gchar * uri)
client->sequence_position = 0;
client->update_failed_count = 0;
g_mutex_init (&client->lock);
gst_m3u8_set_uri (client->main, g_strdup (uri));
gst_m3u8_set_uri (client->main, g_strdup (uri), g_strdup (base_uri));
return client;
}

6
ext/hls/m3u8.h
View file

@ -37,7 +37,9 @@ typedef struct _GstM3U8Client GstM3U8Client;
struct _GstM3U8
{
gchar *uri;
gchar *uri; /* actually downloaded URI */
gchar *base_uri; /* URI to use as base for resolving relative URIs.
* This will be different to uri in case of redirects */
gboolean endlist; /* if ENDLIST has been reached */
gint version; /* last EXT-X-VERSION */
@ -85,7 +87,7 @@ struct _GstM3U8Client
};
GstM3U8Client *gst_m3u8_client_new (const gchar * uri);
GstM3U8Client *gst_m3u8_client_new (const gchar * uri, const gchar * base_uri);
void gst_m3u8_client_free (GstM3U8Client * client);
gboolean gst_m3u8_client_update (GstM3U8Client * client, gchar * data);
void gst_m3u8_client_set_current (GstM3U8Client * client, GstM3U8 * m3u8);