static gboolean
gst_base_video_parse_sink_event (GstPad * pad, GstEvent * event)
{
GstBaseVideoParse *base_video_parse;
gboolean ret = FALSE;
base_video_parse = GST_BASE_VIDEO_PARSE (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_START:
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_parse),
event);
break;
case GST_EVENT_FLUSH_STOP:
gst_base_video_parse_reset (base_video_parse);
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_parse),
event);
break;
case GST_EVENT_EOS:
if (gst_base_video_parse_push_all (base_video_parse,
FALSE) == GST_FLOW_ERROR) {
gst_event_unref (event);
return FALSE;
}
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_parse),
event);
break;
case GST_EVENT_NEWSEGMENT:
{
gboolean update;
GstFormat format;
gdouble rate;
gint64 start, stop, time;
gst_event_parse_new_segment (event, &update, &rate, &format, &start,
&stop, &time);
if (format != GST_FORMAT_TIME)
goto newseg_wrong_format;
if (rate <= 0.0)
goto newseg_wrong_rate;
GST_DEBUG ("newsegment %" GST_TIME_FORMAT " %" GST_TIME_FORMAT,
GST_TIME_ARGS (start), GST_TIME_ARGS (time));
gst_segment_set_newsegment (&base_video_parse->segment, update,
rate, format, start, stop, time);
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_parse),
event);
break;
}
default:
ret =
gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_parse),
event);
break;
}
done:
gst_object_unref (base_video_parse);
return ret;
newseg_wrong_format:
GST_DEBUG_OBJECT (base_video_parse, "received non TIME newsegment");
gst_event_unref (event);
goto done;
newseg_wrong_rate:
GST_DEBUG_OBJECT (base_video_parse, "negative rates not supported");
gst_event_unref (event);
goto done;
}
static gboolean
gst_base_rtp_depayload_handle_sink_event (GstPad * pad, GstEvent * event)
{
GstBaseRTPDepayload *filter;
gboolean res = TRUE;
gboolean forward = TRUE;
filter = GST_BASE_RTP_DEPAYLOAD (GST_OBJECT_PARENT (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_STOP:
gst_segment_init (&filter->segment, GST_FORMAT_UNDEFINED);
filter->need_newsegment = TRUE;
filter->priv->next_seqnum = -1;
break;
case GST_EVENT_NEWSEGMENT:
{
gboolean update;
gdouble rate;
GstFormat fmt;
gint64 start, stop, position;
gst_event_parse_new_segment (event, &update, &rate, &fmt, &start, &stop,
&position);
gst_segment_set_newsegment (&filter->segment, update, rate, fmt,
start, stop, position);
/* don't pass the event downstream, we generate our own segment including
* the NTP time and other things we receive in caps */
forward = FALSE;
break;
}
case GST_EVENT_CUSTOM_DOWNSTREAM:
{
GstBaseRTPDepayloadClass *bclass;
bclass = GST_BASE_RTP_DEPAYLOAD_GET_CLASS (filter);
if (gst_event_has_name (event, "GstRTPPacketLost")) {
/* we get this event from the jitterbuffer when it considers a packet as
* being lost. We send it to our packet_lost vmethod. The default
* implementation will make time progress by pushing out a NEWSEGMENT
* update event. Subclasses can override and to one of the following:
* - Adjust timestamp/duration to something more accurate before
* calling the parent (default) packet_lost method.
* - do some more advanced error concealing on the already received
* (fragmented) packets.
* - ignore the packet lost.
*/
if (bclass->packet_lost)
res = bclass->packet_lost (filter, event);
forward = FALSE;
}
break;
}
default:
break;
}
if (forward)
res = gst_pad_push_event (filter->srcpad, event);
else
gst_event_unref (event);
return res;
}
static gboolean
gst_identity_event (GstBaseTransform * trans, GstEvent * event)
{
GstIdentity *identity;
gboolean ret = TRUE;
identity = GST_IDENTITY (trans);
if (!identity->silent) {
const GstStructure *s;
gchar *sstr;
GST_OBJECT_LOCK (identity);
g_free (identity->last_message);
if ((s = gst_event_get_structure (event)))
sstr = gst_structure_to_string (s);
else
sstr = g_strdup ("");
identity->last_message =
g_strdup_printf ("event ******* (%s:%s) E (type: %d, %s) %p",
GST_DEBUG_PAD_NAME (trans->sinkpad), GST_EVENT_TYPE (event), sstr,
event);
g_free (sstr);
GST_OBJECT_UNLOCK (identity);
gst_identity_notify_last_message (identity);
}
if (identity->single_segment
&& (GST_EVENT_TYPE (event) == GST_EVENT_NEWSEGMENT)) {
if (trans->have_newsegment == FALSE) {
GstEvent *news;
GstFormat format;
gst_event_parse_new_segment (event, NULL, NULL, &format, NULL, NULL,
NULL);
/* This is the first newsegment, send out a (0, -1) newsegment */
news = gst_event_new_new_segment (TRUE, 1.0, format, 0, -1, 0);
gst_pad_event_default (trans->sinkpad, news);
}
}
/* Reset previous timestamp, duration and offsets on NEWSEGMENT
* to prevent false warnings when checking for perfect streams */
if (GST_EVENT_TYPE (event) == GST_EVENT_NEWSEGMENT) {
identity->prev_timestamp = identity->prev_duration = GST_CLOCK_TIME_NONE;
identity->prev_offset = identity->prev_offset_end = GST_BUFFER_OFFSET_NONE;
}
ret = parent_class->event (trans, event);
if (identity->single_segment
&& (GST_EVENT_TYPE (event) == GST_EVENT_NEWSEGMENT)) {
/* eat up segments */
ret = FALSE;
}
return ret;
}
static gboolean
gst_sub_parse_sink_event (GstPad * pad, GstEvent * event)
{
GstSubParse *self = GST_SUBPARSE (gst_pad_get_parent (pad));
gboolean ret = FALSE;
GST_DEBUG ("Handling %s event", GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:{
/* Make sure the last subrip chunk is pushed out even
* if the file does not have an empty line at the end */
if (self->parser_type == GST_SUB_PARSE_FORMAT_SUBRIP ||
self->parser_type == GST_SUB_PARSE_FORMAT_TMPLAYER ||
self->parser_type == GST_SUB_PARSE_FORMAT_MPL2) {
GstBuffer *buf = gst_buffer_new_and_alloc (2 + 1);
GST_DEBUG ("EOS. Pushing remaining text (if any)");
GST_BUFFER_DATA (buf)[0] = '\n';
GST_BUFFER_DATA (buf)[1] = '\n';
GST_BUFFER_DATA (buf)[2] = '\0'; /* play it safe */
GST_BUFFER_SIZE (buf) = 2;
GST_BUFFER_OFFSET (buf) = self->offset;
gst_sub_parse_chain (pad, buf);
}
ret = gst_pad_event_default (pad, event);
break;
}
case GST_EVENT_NEWSEGMENT:
{
GstFormat format;
gdouble rate;
gint64 start, stop, time;
gboolean update;
gst_event_parse_new_segment (event, &update, &rate, &format, &start,
&stop, &time);
GST_DEBUG_OBJECT (self, "newsegment (%s)", gst_format_get_name (format));
if (format == GST_FORMAT_TIME) {
gst_segment_set_newsegment (&self->segment, update, rate, format,
start, stop, time);
} else {
/* if not time format, we'll either start with a 0 timestamp anyway or
* it's following a seek in which case we'll have saved the requested
* seek segment and don't want to overwrite it (remember that on a seek
* we always just seek back to the start in BYTES format and just throw
* away all text that's before the requested position; if the subtitles
* come from an upstream demuxer, it won't be able to handle our BYTES
* seek request and instead send us a newsegment from the seek request
* it received via its video pads instead, so all is fine then too) */
}
ret = TRUE;
gst_event_unref (event);
break;
}
case GST_EVENT_FLUSH_START:
{
self->flushing = TRUE;
ret = gst_pad_event_default (pad, event);
break;
}
case GST_EVENT_FLUSH_STOP:
{
self->flushing = FALSE;
ret = gst_pad_event_default (pad, event);
break;
}
default:
ret = gst_pad_event_default (pad, event);
break;
}
gst_object_unref (self);
return ret;
}
/*=============================================================================
FUNCTION: mfw_gst_spdifrx_sink_event
DESCRIPTION: Handles an event on the sink pad.
ARGUMENTS PASSED:
pad - pointer to pad
event - pointer to event
RETURN VALUE:
TRUE - if event is sent to sink properly
FALSE - if event is not sent to sink properly
PRE-CONDITIONS: None
POST-CONDITIONS: None
IMPORTANT NOTES: None
=============================================================================*/
static gboolean
mfw_gst_spdifrx_sink_event(GstPad * pad, GstEvent * event)
{
MfwGstSpdifRX *filter = MFW_GST_SPDIFRX (GST_PAD_PARENT(pad));
gboolean result = TRUE;
switch (GST_EVENT_TYPE(event)) {
case GST_EVENT_NEWSEGMENT:
{
GstFormat format;
gint64 start, stop, position;
gint64 nstart, nstop;
gst_event_parse_new_segment(event, NULL, NULL, &format, &start,
&stop, &position);
if (format == GST_FORMAT_TIME) {
result = gst_pad_push_event(filter->srcpad, event);
if (TRUE != result) {
GST_ERROR
("\n Error in pushing the event,result is %d\n", result);
}
GST_DEBUG("\nCame to the FORMAT_TIME call\n");
} else {
g_print("Newsegment event in format %s",
gst_format_get_name(format));
result = gst_pad_push_event(filter->srcpad, event);
if (TRUE != result) {
GST_ERROR
("\n Error in pushing the event,result is %d\n",
result);
}
}
break;
}
case GST_EVENT_EOS:
{
gboolean ret;
GST_DEBUG("\nSPDIF Receiver converter: Get EOS event\n");
if (filter->format == SPDIF_FORMAT_NONPCM) {
mfw_gst_spdifrx_push(filter);
while(ret == TRUE) {
ret = mfw_gst_spdifrx_push(filter);
};
mfw_gst_spdifrx_pushavail(filter);
}
result = gst_pad_event_default(pad, event);
if (result != TRUE) {
GST_ERROR("\n Error in pushing the event, result is %d\n",result);
}
break;
}
default:
{
result = gst_pad_event_default(pad, event);
break;
}
}
GST_DEBUG("Out of mfw_gst_spdifrx_sink_event() function \n ");
return result;
}
static gboolean
gst_kate_enc_sink_event (GstPad * pad, GstEvent * event)
{
GstKateEnc *ke = GST_KATE_ENC (gst_pad_get_parent (pad));
GstStructure *structure;
gboolean ret;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:
GST_LOG_OBJECT (ke, "Got newsegment event");
if (ke->initialized) {
GST_LOG_OBJECT (ke, "ensuring all headers are in");
if (gst_kate_enc_flush_headers (ke) != GST_FLOW_OK) {
GST_WARNING_OBJECT (ke, "Failed to flush headers");
} else {
GstFormat format;
gint64 timestamp;
gst_event_parse_new_segment (event, NULL, NULL, &format, ×tamp,
NULL, NULL);
if (format != GST_FORMAT_TIME || !GST_CLOCK_TIME_IS_VALID (timestamp)) {
GST_WARNING_OBJECT (ke,
"No time in newsegment event %p, format %d, timestamp %"
G_GINT64_FORMAT, event, (int) format, timestamp);
/* to be safe, we'd need to generate a keepalive anyway, but we'd have to guess at the timestamp to use; a
good guess would be the last known timestamp plus the keepalive time, but if we then get a packet with a
timestamp less than this, it would fail to encode, which would be Bad. If we don't encode a keepalive, we
run the risk of stalling the pipeline and hanging, which is Very Bad. Oh dear. We can't exit(-1), can we ? */
} else {
float t = timestamp / (double) GST_SECOND;
if (ke->delayed_spu
&& t - ke->delayed_start / (double) GST_SECOND >=
ke->default_spu_duration) {
if (G_UNLIKELY (gst_kate_enc_flush_waiting (ke,
timestamp) != GST_FLOW_OK)) {
GST_WARNING_OBJECT (ke, "Failed to encode delayed packet");
/* continue with new segment handling anyway */
}
}
GST_LOG_OBJECT (ke, "ts %f, last %f (min %f)", t,
ke->last_timestamp / (double) GST_SECOND,
ke->keepalive_min_time);
if (ke->keepalive_min_time > 0.0f
&& t - ke->last_timestamp / (double) GST_SECOND >=
ke->keepalive_min_time) {
/* we only generate a keepalive if there is no SPU waiting, as it would
mean out of sequence start times - and granulepos */
if (!ke->delayed_spu) {
gst_kate_enc_generate_keepalive (ke, timestamp);
}
}
}
}
}
ret = gst_pad_push_event (ke->srcpad, event);
break;
case GST_EVENT_CUSTOM_DOWNSTREAM:
GST_LOG_OBJECT (ke, "Got custom downstream event");
/* adapted from the dvdsubdec element */
structure = event->structure;
if (structure != NULL
&& gst_structure_has_name (structure, "application/x-gst-dvd")) {
if (ke->initialized) {
GST_LOG_OBJECT (ke, "ensuring all headers are in");
if (gst_kate_enc_flush_headers (ke) != GST_FLOW_OK) {
GST_WARNING_OBJECT (ke, "Failed to flush headers");
} else {
const gchar *event_name =
gst_structure_get_string (structure, "event");
if (event_name) {
if (!strcmp (event_name, "dvd-spu-clut-change")) {
gchar name[16];
int idx;
gboolean found;
gint value;
GST_INFO_OBJECT (ke, "New CLUT received");
for (idx = 0; idx < 16; ++idx) {
g_snprintf (name, sizeof (name), "clut%02d", idx);
found = gst_structure_get_int (structure, name, &value);
if (found) {
ke->spu_clut[idx] = value;
} else {
GST_WARNING_OBJECT (ke,
"DVD CLUT event did not contain %s field", name);
}
}
} else if (!strcmp (event_name, "dvd-lang-codes")) {
/* we can't know which stream corresponds to us */
}
} else {
GST_WARNING_OBJECT (ke, "custom downstream event with no name");
}
}
}
}
ret = gst_pad_push_event (ke->srcpad, event);
break;
case GST_EVENT_TAG:
GST_LOG_OBJECT (ke, "Got tag event");
if (ke->tags) {
GstTagList *list;
gst_event_parse_tag (event, &list);
gst_tag_list_insert (ke->tags, list,
gst_tag_setter_get_tag_merge_mode (GST_TAG_SETTER (ke)));
} else {
g_assert_not_reached ();
}
ret = gst_pad_event_default (pad, event);
break;
case GST_EVENT_EOS:
GST_INFO_OBJECT (ke, "Got EOS event");
if (ke->initialized) {
GST_LOG_OBJECT (ke, "ensuring all headers are in");
if (gst_kate_enc_flush_headers (ke) != GST_FLOW_OK) {
GST_WARNING_OBJECT (ke, "Failed to flush headers");
} else {
kate_packet kp;
int ret;
GstClockTime delayed_end =
ke->delayed_start + ke->default_spu_duration * GST_SECOND;
if (G_UNLIKELY (gst_kate_enc_flush_waiting (ke,
delayed_end) != GST_FLOW_OK)) {
GST_WARNING_OBJECT (ke, "Failed to encode delayed packet");
/* continue with EOS handling anyway */
}
ret = kate_encode_finish (&ke->k, -1, &kp);
if (ret < 0) {
GST_WARNING_OBJECT (ke, "Failed to encode EOS packet: %d", ret);
} else {
kate_int64_t granpos = kate_encode_get_granule (&ke->k);
GST_LOG_OBJECT (ke, "EOS packet encoded");
if (gst_kate_enc_push_and_free_kate_packet (ke, &kp, granpos,
ke->latest_end_time, 0, FALSE)) {
GST_WARNING_OBJECT (ke, "Failed to push EOS packet");
}
}
}
}
ret = gst_pad_event_default (pad, event);
break;
default:
GST_LOG_OBJECT (ke, "Got unhandled event");
ret = gst_pad_event_default (pad, event);
break;
}
gst_object_unref (ke);
return ret;
}
/* handle events (search) */
static gboolean
gst_file_sink_event (GstBaseSink * sink, GstEvent * event)
{
GstEventType type;
GstFileSink *filesink;
filesink = GST_FILE_SINK (sink);
type = GST_EVENT_TYPE (event);
switch (type) {
case GST_EVENT_NEWSEGMENT:
{
gint64 start, stop, pos;
GstFormat format;
gst_event_parse_new_segment (event, NULL, NULL, &format, &start,
&stop, &pos);
if (format == GST_FORMAT_BYTES) {
/* only try to seek and fail when we are going to a different
* position */
if (filesink->current_pos != start) {
/* FIXME, the seek should be performed on the pos field, start/stop are
* just boundaries for valid bytes offsets. We should also fill the file
* with zeroes if the new position extends the current EOF (sparse streams
* and segment accumulation). */
if (!gst_file_sink_do_seek (filesink, (guint64) start))
goto seek_failed;
} else {
GST_DEBUG_OBJECT (filesink, "Ignored NEWSEGMENT, no seek needed");
}
} else {
GST_DEBUG_OBJECT (filesink,
"Ignored NEWSEGMENT event of format %u (%s)", (guint) format,
gst_format_get_name (format));
}
break;
}
case GST_EVENT_EOS:
if (fflush (filesink->file))
goto flush_failed;
break;
default:
break;
}
return TRUE;
/* ERRORS */
seek_failed:
{
GST_ELEMENT_ERROR (filesink, RESOURCE, SEEK,
(_("Error while seeking in file \"%s\"."), filesink->filename),
GST_ERROR_SYSTEM);
return FALSE;
}
flush_failed:
{
GST_ELEMENT_ERROR (filesink, RESOURCE, WRITE,
(_("Error while writing to file \"%s\"."), filesink->filename),
GST_ERROR_SYSTEM);
return FALSE;
}
}