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oggmux: properly flush when seeking at the beginning

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Reset all internal status when collect pads forwards a flush-stop
from the pads to be able to start the stream again.
This commit is contained in:
Thiago Santos 2014-02-13 16:03:01 -03:00
parent 2ddc07e93e
commit a6890ec7ef
1 changed files with 55 additions and 23 deletions
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78
ext/ogg/gstoggmux.c
View file

@ -137,6 +137,8 @@ static gboolean gst_ogg_mux_handle_src_event (GstPad * pad, GstObject * parent,
static GstPad *gst_ogg_mux_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * name, const GstCaps * caps);
static void gst_ogg_mux_release_pad (GstElement * element, GstPad * pad);
static void gst_ogg_pad_data_reset (GstOggMux * ogg_mux,
GstOggPadData * pad_data);
static void gst_ogg_mux_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
@ -293,6 +295,22 @@ gst_ogg_mux_sinkconnect (GstPad * pad, GstObject * parent, GstPad * peer)
return GST_PAD_LINK_OK;
}
static void
gst_ogg_mux_flush (GstOggMux * ogg_mux)
{
GSList *walk;
for (walk = ogg_mux->collect->data; walk; walk = g_slist_next (walk)) {
GstOggPadData *pad;
pad = (GstOggPadData *) walk->data;
gst_ogg_pad_data_reset (ogg_mux, pad);
}
gst_ogg_mux_clear (ogg_mux);
}
static gboolean
gst_ogg_mux_sink_event (GstCollectPads * pads, GstCollectData * pad,
GstEvent * event, gpointer user_data)
@ -320,7 +338,8 @@ gst_ogg_mux_sink_event (GstCollectPads * pads, GstCollectData * pad,
break;
}
case GST_EVENT_FLUSH_STOP:{
gst_segment_init (&ogg_pad->segment, GST_FORMAT_TIME);
/* only a single flush-stop is forwarded from collect pads */
gst_ogg_mux_flush (ogg_mux);
break;
}
case GST_EVENT_TAG:{
@ -362,6 +381,40 @@ gst_ogg_mux_is_serialno_present (GstOggMux * ogg_mux, guint32 serialno)
return FALSE;
}
static void
gst_ogg_pad_data_reset (GstOggMux * ogg_mux, GstOggPadData * oggpad)
{
oggpad->packetno = 0;
oggpad->pageno = 0;
oggpad->eos = FALSE;
/* we assume there will be some control data first for this pad */
oggpad->state = GST_OGG_PAD_STATE_CONTROL;
oggpad->new_page = TRUE;
oggpad->first_delta = FALSE;
oggpad->prev_delta = FALSE;
oggpad->data_pushed = FALSE;
oggpad->map.headers = NULL;
oggpad->map.queued = NULL;
oggpad->next_granule = 0;
oggpad->keyframe_granule = -1;
ogg_stream_init (&oggpad->map.stream, oggpad->map.serialno);
if (oggpad->pagebuffers) {
GstBuffer *buf;
while ((buf = g_queue_pop_head (oggpad->pagebuffers)) != NULL) {
gst_buffer_unref (buf);
}
} else if (GST_STATE (ogg_mux) > GST_STATE_READY) {
/* This will be initialized in init_collectpads when going from ready
* paused state */
oggpad->pagebuffers = g_queue_new ();
}
gst_segment_init (&oggpad->segment, GST_FORMAT_TIME);
}
static guint32
gst_ogg_mux_generate_serialno (GstOggMux * ogg_mux)
{
@ -442,28 +495,7 @@ gst_ogg_mux_request_new_pad (GstElement * element,
ogg_mux->active_pads++;
oggpad->map.serialno = serial;
oggpad->packetno = 0;
oggpad->pageno = 0;
oggpad->eos = FALSE;
/* we assume there will be some control data first for this pad */
oggpad->state = GST_OGG_PAD_STATE_CONTROL;
oggpad->new_page = TRUE;
oggpad->first_delta = FALSE;
oggpad->prev_delta = FALSE;
oggpad->data_pushed = FALSE;
oggpad->map.headers = NULL;
oggpad->map.queued = NULL;
oggpad->next_granule = 0;
oggpad->keyframe_granule = -1;
if (GST_STATE (ogg_mux) > GST_STATE_READY) {
/* This will be initialized in init_collectpads when going from ready
* paused state */
ogg_stream_init (&oggpad->map.stream, oggpad->map.serialno);
oggpad->pagebuffers = g_queue_new ();
}
gst_segment_init (&oggpad->segment, GST_FORMAT_TIME);
gst_ogg_pad_data_reset (ogg_mux, oggpad);
}
}