static GstStateChangeReturn
theora_dec_change_state (GstElement * element, GstStateChange transition)
{
GstTheoraDec *dec = GST_THEORA_DEC (element);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
th_info_clear (&dec->info);
th_comment_clear (&dec->comment);
GST_DEBUG_OBJECT (dec, "Setting have_header to FALSE in READY->PAUSED");
dec->have_header = FALSE;
dec->have_par = FALSE;
gst_theora_dec_reset (dec);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = parent_class->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
th_info_clear (&dec->info);
th_comment_clear (&dec->comment);
th_setup_free (dec->setup);
dec->setup = NULL;
th_decode_free (dec->decoder);
dec->decoder = NULL;
gst_theora_dec_reset (dec);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static gboolean
theora_dec_start (GstVideoDecoder * decoder)
{
GstTheoraDec *dec = GST_THEORA_DEC (decoder);
GST_DEBUG_OBJECT (dec, "start");
th_info_clear (&dec->info);
th_comment_clear (&dec->comment);
GST_DEBUG_OBJECT (dec, "Setting have_header to FALSE");
dec->have_header = FALSE;
gst_theora_dec_reset (dec);
return TRUE;
}
static gboolean
theora_dec_stop (GstVideoDecoder * decoder)
{
GstTheoraDec *dec = GST_THEORA_DEC (decoder);
GST_DEBUG_OBJECT (dec, "stop");
th_info_clear (&dec->info);
th_comment_clear (&dec->comment);
th_setup_free (dec->setup);
dec->setup = NULL;
th_decode_free (dec->decoder);
dec->decoder = NULL;
gst_theora_dec_reset (dec);
if (dec->input_state) {
gst_video_codec_state_unref (dec->input_state);
dec->input_state = NULL;
}
if (dec->output_state) {
gst_video_codec_state_unref (dec->output_state);
dec->output_state = NULL;
}
return TRUE;
}
/* FIXME : Do we want to handle hard resets differently ? */
static gboolean
theora_dec_reset (GstVideoDecoder * bdec, gboolean hard)
{
gst_theora_dec_reset (GST_THEORA_DEC (bdec));
return TRUE;
}
static gboolean
theora_dec_sink_event (GstPad * pad, GstEvent * event)
{
gboolean ret = FALSE;
GstTheoraDec *dec;
dec = GST_THEORA_DEC (gst_pad_get_parent (pad));
GST_LOG_OBJECT (dec, "handling event");
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_START:
ret = gst_pad_push_event (dec->srcpad, event);
break;
case GST_EVENT_FLUSH_STOP:
gst_theora_dec_reset (dec);
ret = gst_pad_push_event (dec->srcpad, event);
break;
case GST_EVENT_EOS:
ret = gst_pad_push_event (dec->srcpad, event);
break;
case GST_EVENT_NEWSEGMENT:
{
gboolean update;
GstFormat format;
gdouble rate, arate;
gint64 start, stop, time;
gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format,
&start, &stop, &time);
/* we need TIME format */
if (format != GST_FORMAT_TIME)
goto newseg_wrong_format;
/* now configure the values */
gst_segment_set_newsegment_full (&dec->segment, update,
rate, arate, format, start, stop, time);
/* We don't forward this unless/until the decoder is initialised */
if (dec->have_header) {
ret = gst_pad_push_event (dec->srcpad, event);
dec->sent_newsegment = TRUE;
} else {
gst_event_unref (event);
ret = TRUE;
}
break;
}
default:
ret = gst_pad_push_event (dec->srcpad, event);
break;
}
done:
gst_object_unref (dec);
return ret;
/* ERRORS */
newseg_wrong_format:
{
GST_DEBUG_OBJECT (dec, "received non TIME newsegment");
gst_event_unref (event);
goto done;
}
}
