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hlsdemux: Implement EVENT_SEEK

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Youness Alaoui 2011-08-16 19:46:49 +00:00 committed by Sebastian Dröge
parent 475abd15b6
commit e2f69e1be9
2 changed files with 85 additions and 5 deletions
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89
gst/hls/gsthlsdemux.c
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@ -242,8 +242,6 @@ gst_hls_demux_init (GstHLSDemux * demux, GstHLSDemuxClass * klass)
g_static_rec_mutex_init (&demux->task_lock);
demux->task = gst_task_create ((GstTaskFunction) gst_hls_demux_loop, demux);
gst_task_set_lock (demux->task, &demux->task_lock);
demux->position = 0;
}
static void
@ -314,11 +312,89 @@ gst_hls_demux_change_state (GstElement * element, GstStateChange transition)
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) {
/* FIXME: ignore seek event for the moment */
case GST_EVENT_SEEK:
gst_event_unref (event);
return FALSE;
{
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");
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 ());
}
gst_hls_demux_stop_fetcher (demux, TRUE);
gst_task_pause (demux->task);
g_cond_signal (demux->thread_cond);
/* wait for streaming to finish */
GST_PAD_STREAM_LOCK (demux->srcpad);
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 ());
}
gst_task_start (demux->task);
GST_PAD_STREAM_UNLOCK (demux->srcpad);
return TRUE;
}
default:
break;
}
@ -746,6 +822,9 @@ gst_hls_demux_reset (GstHLSDemux * demux, gboolean dispose)
gst_buffer_unref (buf);
}
g_queue_clear (demux->queue);
demux->position = 0;
demux->need_segment = TRUE;
}
static gboolean

1
gst/hls/gsthlsdemux.h
View file

@ -89,6 +89,7 @@ struct _GstHLSDemux
/* Position in the stream */
GstClockTime position;
gboolean need_segment;
};
struct _GstHLSDemuxClass