static void
check_on_demand_playlist (const gchar * data)
{
GstM3U8Client *client;
GstM3U8 *pl;
GstM3U8MediaFile *file;
client = load_playlist (data);
pl = client->current;
/* Sequence should be 0 as it's an ondemand playlist */
assert_equals_int (client->sequence, 0);
/* Check that we are not live */
assert_equals_int (gst_m3u8_client_is_live (client), FALSE);
/* Check number of entries */
assert_equals_int (g_list_length (pl->files), 4);
/* Check first media segments */
file = GST_M3U8_MEDIA_FILE (g_list_first (pl->files)->data);
assert_equals_string (file->uri, "http://media.example.com/001.ts");
assert_equals_int (file->sequence, 0);
/* Check last media segments */
file = GST_M3U8_MEDIA_FILE (g_list_last (pl->files)->data);
assert_equals_string (file->uri, "http://media.example.com/004.ts");
assert_equals_int (file->sequence, 3);
gst_m3u8_client_free (client);
}
gboolean
gst_m3u8_client_get_next_fragment (GstM3U8Client * client,
gboolean * discontinuity, const gchar ** uri, GstClockTime * duration)
{
GList *l;
GstM3U8MediaFile *file;
g_return_val_if_fail (client != NULL, FALSE);
g_return_val_if_fail (client->current != NULL, FALSE);
g_return_val_if_fail (discontinuity != NULL, FALSE);
GST_DEBUG ("Looking for fragment %d", client->sequence);
l = g_list_find_custom (client->current->files, client,
(GCompareFunc) _find_next);
if (l == NULL)
return FALSE;
file = GST_M3U8_MEDIA_FILE (l->data);
*discontinuity = client->sequence != file->sequence;
client->sequence = file->sequence + 1;
*uri = file->uri;
*duration = file->duration * GST_SECOND;
return TRUE;
}
gboolean
gst_m3u8_client_update (GstM3U8Client * self, gchar * data)
{
GstM3U8 *m3u8;
gboolean updated = FALSE;
g_return_val_if_fail (self != NULL, FALSE);
m3u8 = self->current ? self->current : self->main;
if (!gst_m3u8_update (m3u8, data, &updated))
return FALSE;
if (!updated) {
self->update_failed_count++;
return FALSE;
}
/* select the first playlist, for now */
if (!self->current) {
if (self->main->lists) {
self->current = g_list_first (self->main->lists)->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;
GST_DEBUG ("Setting first sequence at %d", self->sequence);
}
return TRUE;
}
static gboolean
gst_hls_demux_update_playlist (GstHLSDemux * demux, gboolean update)
{
GstFragment *download;
GstBuffer *buf;
gchar *playlist;
gboolean updated = FALSE;
const gchar *uri = gst_m3u8_client_get_current_uri (demux->client);
download = gst_uri_downloader_fetch_uri (demux->downloader, uri);
if (download == NULL)
return FALSE;
buf = gst_fragment_get_buffer (download);
playlist = gst_hls_src_buf_to_utf8_playlist (buf);
g_object_unref (download);
if (playlist == NULL) {
GST_WARNING_OBJECT (demux, "Couldn't not validate playlist encoding");
return FALSE;
}
updated = gst_m3u8_client_update (demux->client, playlist);
/* If it's a live source, do not let the sequence number go beyond
* three fragments before the end of the list */
if (updated && update == FALSE && demux->client->current &&
gst_m3u8_client_is_live (demux->client)) {
guint last_sequence;
GST_M3U8_CLIENT_LOCK (demux->client);
last_sequence =
GST_M3U8_MEDIA_FILE (g_list_last (demux->client->current->
files)->data)->sequence;
if (demux->client->sequence >= last_sequence - 3) {
GST_DEBUG_OBJECT (demux, "Sequence is beyond playlist. Moving back to %d",
last_sequence - 3);
demux->need_segment = TRUE;
demux->client->sequence = last_sequence - 3;
}
GST_M3U8_CLIENT_UNLOCK (demux->client);
}
return updated;
}
void
gst_m3u8_client_get_current_position (GstM3U8Client * client,
GstClockTime * timestamp)
{
GList *l;
GList *walk;
l = g_list_find_custom (client->current->files, client,
(GCompareFunc) _find_next);
*timestamp = 0;
for (walk = client->current->files; walk; walk = walk->next) {
if (walk == l)
break;
*timestamp += GST_M3U8_MEDIA_FILE (walk->data)->duration;
}
}
static gboolean
gst_hls_demux_src_event (GstPad * pad, GstEvent * event)
{
GstHLSDemux *demux;
demux = GST_HLS_DEMUX (gst_pad_get_element_private (pad));
switch (event->type) {
case GST_EVENT_SEEK:
{
gdouble rate;
GstFormat format;
GstSeekFlags flags;
GstSeekType start_type, stop_type;
gint64 start, stop;
GList *walk;
gint current_pos;
gint current_sequence;
gint target_second;
GstM3U8MediaFile *file;
GST_INFO_OBJECT (demux, "Received GST_EVENT_SEEK");
if (gst_m3u8_client_is_live (demux->client)) {
GST_WARNING_OBJECT (demux, "Received seek event for live stream");
return FALSE;
}
gst_event_parse_seek (event, &rate, &format, &flags, &start_type, &start,
&stop_type, &stop);
if (format != GST_FORMAT_TIME)
return FALSE;
GST_DEBUG_OBJECT (demux, "seek event, rate: %f start: %" GST_TIME_FORMAT
" stop: %" GST_TIME_FORMAT, rate, GST_TIME_ARGS (start),
GST_TIME_ARGS (stop));
file = GST_M3U8_MEDIA_FILE (demux->client->current->files->data);
current_sequence = file->sequence;
current_pos = 0;
target_second = start / GST_SECOND;
GST_DEBUG_OBJECT (demux, "Target seek to %d", target_second);
for (walk = demux->client->current->files; walk; walk = walk->next) {
file = walk->data;
current_sequence = file->sequence;
if (current_pos <= target_second
&& target_second < current_pos + file->duration) {
break;
}
current_pos += file->duration;
}
if (walk == NULL) {
GST_WARNING_OBJECT (demux, "Could not find seeked fragment");
return FALSE;
}
if (flags & GST_SEEK_FLAG_FLUSH) {
GST_DEBUG_OBJECT (demux, "sending flush start");
gst_pad_push_event (demux->srcpad, gst_event_new_flush_start ());
}
demux->cancelled = TRUE;
gst_task_pause (demux->task);
g_mutex_lock (demux->fetcher_lock);
gst_hls_demux_stop_fetcher (demux, TRUE);
g_mutex_unlock (demux->fetcher_lock);
g_mutex_lock (demux->thread_lock);
g_cond_signal (demux->thread_cond);
g_mutex_unlock (demux->thread_lock);
gst_task_pause (demux->task);
/* wait for streaming to finish */
g_static_rec_mutex_lock (&demux->task_lock);
demux->need_cache = TRUE;
while (!g_queue_is_empty (demux->queue)) {
GstBuffer *buf = g_queue_pop_head (demux->queue);
gst_buffer_unref (buf);
}
GST_DEBUG_OBJECT (demux, "seeking to sequence %d", current_sequence);
demux->client->sequence = current_sequence;
demux->position = start;
demux->need_segment = TRUE;
if (flags & GST_SEEK_FLAG_FLUSH) {
GST_DEBUG_OBJECT (demux, "sending flush stop");
gst_pad_push_event (demux->srcpad, gst_event_new_flush_stop ());
}
demux->cancelled = FALSE;
gst_task_start (demux->task);
g_static_rec_mutex_unlock (&demux->task_lock);
return TRUE;
}
default:
break;
}
return gst_pad_event_default (pad, event);
}
static gboolean
gst_hls_demux_update_playlist (GstHLSDemux * demux, gboolean update,
GError ** err)
{
GstAdaptiveDemux *adaptive_demux = GST_ADAPTIVE_DEMUX (demux);
GstFragment *download;
GstBuffer *buf;
gchar *playlist;
gboolean main_checked = FALSE, updated = FALSE;
gchar *uri, *main_uri;
retry:
uri = gst_m3u8_client_get_current_uri (demux->client);
main_uri = gst_m3u8_client_get_uri (demux->client);
download =
gst_uri_downloader_fetch_uri (adaptive_demux->downloader, uri, main_uri,
TRUE, TRUE, TRUE, err);
g_free (main_uri);
if (download == NULL) {
gchar *base_uri;
if (!update || main_checked
|| !gst_m3u8_client_has_variant_playlist (demux->client)) {
g_free (uri);
return FALSE;
}
g_clear_error (err);
main_uri = gst_m3u8_client_get_uri (demux->client);
GST_INFO_OBJECT (demux,
"Updating playlist %s failed, attempt to refresh variant playlist %s",
uri, main_uri);
download =
gst_uri_downloader_fetch_uri (adaptive_demux->downloader,
main_uri, NULL, TRUE, TRUE, TRUE, err);
g_free (main_uri);
if (download == NULL) {
g_free (uri);
return FALSE;
}
buf = gst_fragment_get_buffer (download);
playlist = gst_hls_src_buf_to_utf8_playlist (buf);
gst_buffer_unref (buf);
if (playlist == NULL) {
GST_WARNING_OBJECT (demux,
"Failed to validate variant playlist encoding");
g_free (uri);
g_object_unref (download);
g_set_error (err, GST_STREAM_ERROR, GST_STREAM_ERROR_WRONG_TYPE,
"Couldn't validate playlist encoding");
return FALSE;
}
g_free (uri);
if (download->redirect_permanent && download->redirect_uri) {
uri = download->redirect_uri;
base_uri = NULL;
} else {
uri = download->uri;
base_uri = download->redirect_uri;
}
if (!gst_m3u8_client_update_variant_playlist (demux->client, playlist,
uri, base_uri)) {
GST_WARNING_OBJECT (demux, "Failed to update the variant playlist");
g_object_unref (download);
g_set_error (err, GST_STREAM_ERROR, GST_STREAM_ERROR_FAILED,
"Couldn't update playlist");
return FALSE;
}
g_object_unref (download);
main_checked = TRUE;
goto retry;
}
g_free (uri);
/* 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 && download->redirect_uri) {
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);
gst_buffer_unref (buf);
g_object_unref (download);
if (playlist == NULL) {
GST_WARNING_OBJECT (demux, "Couldn't validate playlist encoding");
g_set_error (err, GST_STREAM_ERROR, GST_STREAM_ERROR_WRONG_TYPE,
"Couldn't validate playlist encoding");
return FALSE;
}
updated = gst_m3u8_client_update (demux->client, playlist);
if (!updated) {
GST_WARNING_OBJECT (demux, "Couldn't update playlist");
g_set_error (err, GST_STREAM_ERROR, GST_STREAM_ERROR_FAILED,
"Couldn't update playlist");
return FALSE;
}
/* If it's a live source, do not let the sequence number go beyond
* three fragments before the end of the list */
if (update == FALSE && demux->client->current &&
gst_m3u8_client_is_live (demux->client)) {
gint64 last_sequence, first_sequence;
GST_M3U8_CLIENT_LOCK (demux->client);
last_sequence =
GST_M3U8_MEDIA_FILE (g_list_last (demux->client->current->
files)->data)->sequence;
first_sequence =
GST_M3U8_MEDIA_FILE (demux->client->current->files->data)->sequence;
GST_DEBUG_OBJECT (demux,
"sequence:%" G_GINT64_FORMAT " , first_sequence:%" G_GINT64_FORMAT
" , last_sequence:%" G_GINT64_FORMAT, demux->client->sequence,
first_sequence, last_sequence);
if (demux->client->sequence >= last_sequence - 3) {
//demux->need_segment = TRUE;
/* Make sure we never go below the minimum sequence number */
demux->client->sequence = MAX (first_sequence, last_sequence - 3);
GST_DEBUG_OBJECT (demux,
"Sequence is beyond playlist. Moving back to %" G_GINT64_FORMAT,
demux->client->sequence);
}
GST_M3U8_CLIENT_UNLOCK (demux->client);
} else if (demux->client->current && !gst_m3u8_client_is_live (demux->client)) {
GstClockTime current_pos, target_pos;
guint sequence = 0;
GList *walk;
/* Sequence numbers are not guaranteed to be the same in different
* playlists, so get the correct fragment here based on the current
* position
*/
GST_M3U8_CLIENT_LOCK (demux->client);
/* Valid because hlsdemux only has a single output */
if (GST_ADAPTIVE_DEMUX_CAST (demux)->streams) {
GstAdaptiveDemuxStream *stream =
GST_ADAPTIVE_DEMUX_CAST (demux)->streams->data;
target_pos = stream->segment.position;
} else {
target_pos = 0;
}
if (GST_CLOCK_TIME_IS_VALID (demux->client->sequence_position)) {
target_pos = MAX (target_pos, demux->client->sequence_position);
}
GST_LOG_OBJECT (demux, "Looking for sequence position %"
GST_TIME_FORMAT " in updated playlist", GST_TIME_ARGS (target_pos));
current_pos = 0;
for (walk = demux->client->current->files; walk; walk = walk->next) {
GstM3U8MediaFile *file = walk->data;
sequence = file->sequence;
if (current_pos <= target_pos
&& target_pos < current_pos + file->duration) {
break;
}
current_pos += file->duration;
}
/* End of playlist */
if (!walk)
sequence++;
demux->client->sequence = sequence;
demux->client->sequence_position = current_pos;
GST_M3U8_CLIENT_UNLOCK (demux->client);
}
return updated;
}
static gboolean
gst_hls_demux_seek (GstAdaptiveDemux * demux, GstEvent * seek)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
GstFormat format;
GstSeekFlags flags;
GstSeekType start_type, stop_type;
gint64 start, stop;
gdouble rate;
GList *walk, *current_file = NULL;
GstClockTime current_pos, target_pos;
gint64 current_sequence;
GstM3U8MediaFile *file;
guint64 bitrate;
gboolean snap_before, snap_after, snap_nearest, keyunit;
gboolean reverse;
gst_event_parse_seek (seek, &rate, &format, &flags, &start_type, &start,
&stop_type, &stop);
bitrate = gst_hls_demux_get_bitrate (hlsdemux);
/* properly cleanup pending decryption status */
if (flags & GST_SEEK_FLAG_FLUSH) {
gst_hls_demux_clear_pending_data (hlsdemux);
}
/* Use I-frame variants for trick modes */
if (hlsdemux->client->main->iframe_lists && rate < -1.0
&& demux->segment.rate >= -1.0 && demux->segment.rate <= 1.0) {
GError *err = NULL;
GST_M3U8_CLIENT_LOCK (hlsdemux->client);
/* Switch to I-frame variant */
hlsdemux->client->main->current_variant =
hlsdemux->client->main->iframe_lists;
GST_M3U8_CLIENT_UNLOCK (hlsdemux->client);
gst_m3u8_client_set_current (hlsdemux->client,
hlsdemux->client->main->iframe_lists->data);
gst_uri_downloader_reset (demux->downloader);
if (!gst_hls_demux_update_playlist (hlsdemux, FALSE, &err)) {
GST_ELEMENT_ERROR_FROM_ERROR (hlsdemux, "Could not switch playlist", err);
return FALSE;
}
//hlsdemux->discont = TRUE;
hlsdemux->do_typefind = TRUE;
gst_hls_demux_change_playlist (hlsdemux, bitrate / ABS (rate), NULL);
} else if (rate > -1.0 && rate <= 1.0 && (demux->segment.rate < -1.0
|| demux->segment.rate > 1.0)) {
GError *err = NULL;
GST_M3U8_CLIENT_LOCK (hlsdemux->client);
/* Switch to normal variant */
hlsdemux->client->main->current_variant = hlsdemux->client->main->lists;
GST_M3U8_CLIENT_UNLOCK (hlsdemux->client);
gst_m3u8_client_set_current (hlsdemux->client,
hlsdemux->client->main->lists->data);
gst_uri_downloader_reset (demux->downloader);
if (!gst_hls_demux_update_playlist (hlsdemux, FALSE, &err)) {
GST_ELEMENT_ERROR_FROM_ERROR (hlsdemux, "Could not switch playlist", err);
return FALSE;
}
//hlsdemux->discont = TRUE;
hlsdemux->do_typefind = TRUE;
/* TODO why not continue using the same? that was being used up to now? */
gst_hls_demux_change_playlist (hlsdemux, bitrate, NULL);
}
GST_M3U8_CLIENT_LOCK (hlsdemux->client);
file = GST_M3U8_MEDIA_FILE (hlsdemux->client->current->files->data);
current_sequence = file->sequence;
current_pos = 0;
reverse = rate < 0;
target_pos = reverse ? stop : start;
/* Snap to segment boundary. Improves seek performance on slow machines. */
keyunit = ! !(flags & GST_SEEK_FLAG_KEY_UNIT);
snap_nearest =
(flags & GST_SEEK_FLAG_SNAP_NEAREST) == GST_SEEK_FLAG_SNAP_NEAREST;
snap_before = ! !(flags & GST_SEEK_FLAG_SNAP_BEFORE);
snap_after = ! !(flags & GST_SEEK_FLAG_SNAP_AFTER);
/* FIXME: Here we need proper discont handling */
for (walk = hlsdemux->client->current->files; walk; walk = walk->next) {
file = walk->data;
current_sequence = file->sequence;
current_file = walk;
if ((!reverse && snap_after) || snap_nearest) {
if (current_pos >= target_pos)
break;
if (snap_nearest && target_pos - current_pos < file->duration / 2)
break;
} else if (reverse && snap_after) {
/* check if the next fragment is our target, in this case we want to
* start from the previous fragment */
GstClockTime next_pos = current_pos + file->duration;
if (next_pos <= target_pos && target_pos < next_pos + file->duration) {
break;
}
} else if (current_pos <= target_pos
&& target_pos < current_pos + file->duration) {
break;
}
current_pos += file->duration;
}
if (walk == NULL) {
GST_DEBUG_OBJECT (demux, "seeking further than track duration");
current_sequence++;
}
GST_DEBUG_OBJECT (demux, "seeking to sequence %u", (guint) current_sequence);
hlsdemux->reset_pts = TRUE;
hlsdemux->client->sequence = current_sequence;
hlsdemux->client->current_file =
current_file ? current_file : hlsdemux->client->current->files;
hlsdemux->client->sequence_position = current_pos;
GST_M3U8_CLIENT_UNLOCK (hlsdemux->client);
/* Play from the end of the current selected segment */
if (reverse && (snap_before || snap_after || snap_nearest))
current_pos += file->duration;
if (keyunit || snap_before || snap_after || snap_nearest) {
if (!reverse)
gst_segment_do_seek (&demux->segment, rate, format, flags, start_type,
current_pos, stop_type, stop, NULL);
else
gst_segment_do_seek (&demux->segment, rate, format, flags, start_type,
start, stop_type, current_pos, NULL);
}
return TRUE;
}
static gboolean
gst_hls_demux_seek (GstAdaptiveDemux * demux, GstEvent * seek)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
GstFormat format;
GstSeekFlags flags;
GstSeekType start_type, stop_type;
gint64 start, stop;
gdouble rate;
GList *walk, *current_file = NULL;
GstClockTime current_pos, target_pos;
gint64 current_sequence;
GstM3U8MediaFile *file;
guint64 bitrate;
gst_event_parse_seek (seek, &rate, &format, &flags, &start_type, &start,
&stop_type, &stop);
bitrate = gst_hls_demux_get_bitrate (hlsdemux);
/* properly cleanup pending decryption status */
if (flags & GST_SEEK_FLAG_FLUSH) {
gst_hls_demux_decrypt_end (hlsdemux);
}
/* Use I-frame variants for trick modes */
if (hlsdemux->client->main->iframe_lists && rate < -1.0
&& demux->segment.rate >= -1.0 && demux->segment.rate <= 1.0) {
GError *err = NULL;
GST_M3U8_CLIENT_LOCK (hlsdemux->client);
/* Switch to I-frame variant */
hlsdemux->client->main->current_variant =
hlsdemux->client->main->iframe_lists;
GST_M3U8_CLIENT_UNLOCK (hlsdemux->client);
gst_m3u8_client_set_current (hlsdemux->client,
hlsdemux->client->main->iframe_lists->data);
gst_uri_downloader_reset (demux->downloader);
if (!gst_hls_demux_update_playlist (hlsdemux, FALSE, &err)) {
GST_ELEMENT_ERROR_FROM_ERROR (hlsdemux, "Could not switch playlist", err);
return FALSE;
}
//hlsdemux->discont = TRUE;
hlsdemux->do_typefind = TRUE;
gst_hls_demux_change_playlist (hlsdemux, bitrate / ABS (rate), NULL);
} else if (rate > -1.0 && rate <= 1.0 && (demux->segment.rate < -1.0
|| demux->segment.rate > 1.0)) {
GError *err = NULL;
GST_M3U8_CLIENT_LOCK (hlsdemux->client);
/* Switch to normal variant */
hlsdemux->client->main->current_variant = hlsdemux->client->main->lists;
GST_M3U8_CLIENT_UNLOCK (hlsdemux->client);
gst_m3u8_client_set_current (hlsdemux->client,
hlsdemux->client->main->lists->data);
gst_uri_downloader_reset (demux->downloader);
if (!gst_hls_demux_update_playlist (hlsdemux, FALSE, &err)) {
GST_ELEMENT_ERROR_FROM_ERROR (hlsdemux, "Could not switch playlist", err);
return FALSE;
}
//hlsdemux->discont = TRUE;
hlsdemux->do_typefind = TRUE;
/* TODO why not continue using the same? that was being used up to now? */
gst_hls_demux_change_playlist (hlsdemux, bitrate, NULL);
}
GST_M3U8_CLIENT_LOCK (hlsdemux->client);
file = GST_M3U8_MEDIA_FILE (hlsdemux->client->current->files->data);
current_sequence = file->sequence;
current_pos = 0;
target_pos = rate > 0 ? start : stop;
/* FIXME: Here we need proper discont handling */
for (walk = hlsdemux->client->current->files; walk; walk = walk->next) {
file = walk->data;
current_sequence = file->sequence;
current_file = walk;
if (current_pos <= target_pos && target_pos < current_pos + file->duration) {
break;
}
current_pos += file->duration;
}
if (walk == NULL) {
GST_DEBUG_OBJECT (demux, "seeking further than track duration");
current_sequence++;
}
GST_DEBUG_OBJECT (demux, "seeking to sequence %u", (guint) current_sequence);
hlsdemux->reset_pts = TRUE;
hlsdemux->client->sequence = current_sequence;
hlsdemux->client->current_file =
current_file ? current_file : hlsdemux->client->current->files;
hlsdemux->client->sequence_position = current_pos;
GST_M3U8_CLIENT_UNLOCK (hlsdemux->client);
return TRUE;
}
static gboolean
gst_hls_demux_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstHLSDemux *demux;
demux = GST_HLS_DEMUX (parent);
switch (event->type) {
case GST_EVENT_SEEK:
{
gdouble rate;
GstFormat format;
GstSeekFlags flags;
GstSeekType start_type, stop_type;
gint64 start, stop;
GList *walk;
GstClockTime position, current_pos, target_pos;
gint current_sequence;
GstM3U8MediaFile *file;
GST_INFO_OBJECT (demux, "Received GST_EVENT_SEEK");
if (gst_m3u8_client_is_live (demux->client)) {
GST_WARNING_OBJECT (demux, "Received seek event for live stream");
return FALSE;
}
gst_event_parse_seek (event, &rate, &format, &flags, &start_type, &start,
&stop_type, &stop);
if (format != GST_FORMAT_TIME)
return FALSE;
GST_DEBUG_OBJECT (demux, "seek event, rate: %f start: %" GST_TIME_FORMAT
" stop: %" GST_TIME_FORMAT, rate, GST_TIME_ARGS (start),
GST_TIME_ARGS (stop));
GST_M3U8_CLIENT_LOCK (demux->client);
file = GST_M3U8_MEDIA_FILE (demux->client->current->files->data);
current_sequence = file->sequence;
current_pos = 0;
target_pos = (GstClockTime) start;
for (walk = demux->client->current->files; walk; walk = walk->next) {
file = walk->data;
current_sequence = file->sequence;
if (current_pos <= target_pos
&& target_pos < current_pos + file->duration) {
break;
}
current_pos += file->duration;
}
GST_M3U8_CLIENT_UNLOCK (demux->client);
if (walk == NULL) {
GST_WARNING_OBJECT (demux, "Could not find seeked fragment");
return FALSE;
}
if (flags & GST_SEEK_FLAG_FLUSH) {
GST_DEBUG_OBJECT (demux, "sending flush start");
gst_pad_push_event (demux->srcpad, gst_event_new_flush_start ());
}
demux->cancelled = TRUE;
gst_task_pause (demux->stream_task);
gst_uri_downloader_cancel (demux->downloader);
gst_task_stop (demux->updates_task);
gst_task_pause (demux->stream_task);
/* wait for streaming to finish */
g_rec_mutex_lock (&demux->stream_lock);
demux->need_cache = TRUE;
while (!g_queue_is_empty (demux->queue)) {
GstFragment *fragment = g_queue_pop_head (demux->queue);
g_object_unref (fragment);
}
g_queue_clear (demux->queue);
GST_M3U8_CLIENT_LOCK (demux->client);
GST_DEBUG_OBJECT (demux, "seeking to sequence %d", current_sequence);
demux->client->sequence = current_sequence;
gst_m3u8_client_get_current_position (demux->client, &position);
demux->position_shift = start - position;
demux->need_segment = TRUE;
GST_M3U8_CLIENT_UNLOCK (demux->client);
if (flags & GST_SEEK_FLAG_FLUSH) {
GST_DEBUG_OBJECT (demux, "sending flush stop");
gst_pad_push_event (demux->srcpad, gst_event_new_flush_stop (TRUE));
}
demux->cancelled = FALSE;
gst_task_start (demux->stream_task);
g_rec_mutex_unlock (&demux->stream_lock);
return TRUE;
}
default:
break;
}
return gst_pad_event_default (pad, parent, event);
}