static GstStateChangeReturn
gst_interleave_change_state (GstElement * element, GstStateChange transition)
{
GstInterleave *self;
GstStateChangeReturn ret;
self = GST_INTERLEAVE (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
self->timestamp = 0;
self->offset = 0;
gst_event_replace (&self->pending_segment, NULL);
self->send_stream_start = TRUE;
gst_collect_pads_start (self->collect);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
/* Stop before calling the parent's state change function as
* GstCollectPads might take locks and we would deadlock in that
* case
*/
if (transition == GST_STATE_CHANGE_PAUSED_TO_READY)
gst_collect_pads_stop (self->collect);
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_caps_replace (&self->sinkcaps, NULL);
gst_event_replace (&self->pending_segment, NULL);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
/* handle an event sent directly to the element.
*
* This event can be sent either in the READY state or the
* >READY state. The only event of interest really is the seek
* event.
*
* In the READY state we can only store the event and try to
* respect it when going to PAUSED. We assume we are in the
* READY state when our parsing state != AIFF_PARSE_DATA.
*
* When we are steaming, we can simply perform the seek right
* away.
*/
static gboolean
gst_aiff_parse_send_event (GstElement * element, GstEvent * event)
{
GstAiffParse *aiff = GST_AIFF_PARSE (element);
gboolean res = FALSE;
GstEvent **event_p;
GST_DEBUG_OBJECT (aiff, "received event %s", GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEEK:
if (aiff->state == AIFF_PARSE_DATA) {
/* we can handle the seek directly when streaming data */
res = gst_aiff_parse_perform_seek (aiff, event);
} else {
GST_DEBUG_OBJECT (aiff, "queuing seek for later");
event_p = &aiff->seek_event;
gst_event_replace (event_p, event);
/* we always return true */
res = TRUE;
}
break;
default:
break;
}
gst_event_unref (event);
return res;
}
/* sink currently only operates in push mode */
static inline gboolean
gst_ts_shifter_sink_activate (GstPad * pad, GstObject * parent, gboolean active)
{
GstTSShifter *ts = GST_TS_SHIFTER (parent);
if (active) {
FLOW_MUTEX_LOCK (ts);
GST_DEBUG_OBJECT (ts, "activating push mode");
ts->srcresult = GST_FLOW_OK;
ts->sinkresult = GST_FLOW_OK;
ts->is_eos = FALSE;
ts->unexpected = FALSE;
FLOW_MUTEX_UNLOCK (ts);
} else {
/* unblock chain function */
FLOW_MUTEX_LOCK (ts);
GST_DEBUG_OBJECT (ts, "deactivating push mode");
ts->srcresult = GST_FLOW_FLUSHING;
ts->sinkresult = GST_FLOW_FLUSHING;
gst_event_replace (&ts->stream_start_event, NULL);
FLOW_MUTEX_UNLOCK (ts);
}
return TRUE;
}
static GstPadProbeReturn
event_probe (GstPad * pad, GstPadProbeInfo * info, gpointer udata)
{
GstPadProbeReturn ret = GST_PAD_PROBE_OK;
GstEvent *event = GST_PAD_PROBE_INFO_DATA (info);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_STREAM_START:{
guint group_id;
g_mutex_lock (&test_mutex);
fail_unless (gst_event_parse_group_id (event, &group_id));
if (have_group_id) {
if (group_id_pre != group_id) {
event = gst_event_copy (event);
gst_event_set_group_id (event, group_id_pre);
gst_event_replace ((GstEvent **) & info->data, event);
gst_event_unref (event);
}
} else {
group_id_pre = group_id;
have_group_id = TRUE;
}
g_mutex_unlock (&test_mutex);
break;
}
default:
break;
}
return ret;
}
static gboolean
gst_frei0r_mixer_sink0_event (GstPad * pad, GstEvent * event)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (gst_pad_get_parent (pad));
gboolean ret = FALSE;
GstEvent **p_ev;
GST_DEBUG ("Got %s event on pad %s:%s", GST_EVENT_TYPE_NAME (event),
GST_DEBUG_PAD_NAME (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:
p_ev = &self->newseg_event;
gst_event_replace (p_ev, event);
break;
default:
break;
}
/* now GstCollectPads can take care of the rest, e.g. EOS */
ret = self->collect_event (pad, event);
gst_object_unref (self);
return ret;
}
static gboolean
mpegtsmux_sink_event (GstPad * pad, GstEvent * event)
{
MpegTsMux *mux = GST_MPEG_TSMUX (gst_pad_get_parent (pad));
MpegTsPadData *ts_data;
gboolean res = TRUE;
gboolean forward = TRUE;
ts_data = (MpegTsPadData *) gst_pad_get_element_private (pad);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CUSTOM_DOWNSTREAM:
{
GstClockTime timestamp, stream_time, running_time;
gboolean all_headers;
guint count;
if (!gst_video_event_is_force_key_unit (event))
goto out;
forward = FALSE;
gst_video_event_parse_downstream_force_key_unit (event,
×tamp, &stream_time, &running_time, &all_headers, &count);
GST_INFO_OBJECT (mux, "have downstream force-key-unit event on pad %s, "
"seqnum %d, running-time %" GST_TIME_FORMAT " count %d",
gst_pad_get_name (pad), gst_event_get_seqnum (event),
GST_TIME_ARGS (running_time), count);
if (mux->force_key_unit_event != NULL) {
GST_INFO_OBJECT (mux, "skipping downstream force key unit event "
"as an upstream force key unit is already queued");
goto out;
}
if (!all_headers)
goto out;
mux->pending_key_unit_ts = running_time;
gst_event_replace (&mux->force_key_unit_event, event);
break;
}
default:
break;
}
out:
if (forward)
res = ts_data->eventfunc (pad, event);
gst_object_unref (mux);
return res;
}
static void
gst_hls_sink_reset (GstHlsSink * sink)
{
sink->index = 0;
sink->count = 0;
sink->timeout_id = 0;
sink->last_running_time = 0;
sink->waiting_fku = FALSE;
gst_event_replace (&sink->force_key_unit_event, NULL);
gst_segment_init (&sink->segment, GST_FORMAT_UNDEFINED);
if (sink->playlist)
gst_m3u8_playlist_free (sink->playlist);
sink->playlist = gst_m3u8_playlist_new (6, sink->playlist_length, FALSE);
}
static GstStateChangeReturn
gst_rtp_base_depayload_change_state (GstElement * element,
GstStateChange transition)
{
GstRTPBaseDepayload *filter;
GstRTPBaseDepayloadPrivate *priv;
GstStateChangeReturn ret;
filter = GST_RTP_BASE_DEPAYLOAD (element);
priv = filter->priv;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
filter->need_newsegment = TRUE;
priv->npt_start = 0;
priv->npt_stop = -1;
priv->play_speed = 1.0;
priv->play_scale = 1.0;
priv->clock_base = -1;
priv->next_seqnum = -1;
priv->negotiated = FALSE;
priv->discont = FALSE;
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_caps_replace (&priv->last_caps, NULL);
gst_event_replace (&priv->segment_event, NULL);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static GstPadProbeReturn
gst_hls_sink_ghost_event_probe (GstPad * pad, GstPadProbeInfo * info,
gpointer data)
{
GstHlsSink *sink = GST_HLS_SINK_CAST (data);
GstEvent *event = gst_pad_probe_info_get_event (info);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEGMENT:
{
gst_event_copy_segment (event, &sink->segment);
break;
}
case GST_EVENT_FLUSH_STOP:
gst_segment_init (&sink->segment, GST_FORMAT_UNDEFINED);
break;
case GST_EVENT_CUSTOM_DOWNSTREAM:
{
GstClockTime timestamp;
GstClockTime running_time, stream_time;
gboolean all_headers;
guint count;
if (!gst_video_event_is_force_key_unit (event))
break;
gst_event_replace (&sink->force_key_unit_event, event);
gst_video_event_parse_downstream_force_key_unit (event,
×tamp, &stream_time, &running_time, &all_headers, &count);
GST_INFO_OBJECT (sink, "setting index %d", count);
sink->index = count;
break;
}
default:
break;
}
return GST_PAD_PROBE_OK;
}
static void
gst_frei0r_mixer_reset (GstFrei0rMixer * self)
{
GstFrei0rMixerClass *klass = GST_FREI0R_MIXER_GET_CLASS (self);
GstEvent **p_ev;
if (self->f0r_instance) {
klass->ftable->destruct (self->f0r_instance);
self->f0r_instance = NULL;
}
if (self->property_cache)
gst_frei0r_property_cache_free (klass->properties, self->property_cache,
klass->n_properties);
self->property_cache = NULL;
gst_caps_replace (&self->caps, NULL);
p_ev = &self->segment_event;
gst_event_replace (p_ev, NULL);
gst_video_info_init (&self->info);
}
static GstStateChangeReturn
gst_ts_shifter_change_state (GstElement * element, GstStateChange transition)
{
GstTSShifter *ts;
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
ts = GST_TS_SHIFTER (element);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_ts_shifter_start (ts);
gst_event_replace (&ts->stream_start_event, NULL);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
case GST_STATE_CHANGE_PAUSED_TO_READY:
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static void
gst_frei0r_mixer_reset (GstFrei0rMixer * self)
{
GstFrei0rMixerClass *klass = GST_FREI0R_MIXER_GET_CLASS (self);
GstEvent **p_ev;
if (self->f0r_instance) {
klass->ftable->destruct (self->f0r_instance);
self->f0r_instance = NULL;
}
if (self->property_cache)
gst_frei0r_property_cache_free (klass->properties, self->property_cache,
klass->n_properties);
self->property_cache = NULL;
gst_caps_replace (&self->caps, NULL);
p_ev = &self->newseg_event;
gst_event_replace (p_ev, NULL);
self->fmt = GST_VIDEO_FORMAT_UNKNOWN;
self->width = self->height = 0;
}
static gboolean
gst_interleave_sink_event (GstCollectPads * pads, GstCollectData * data,
GstEvent * event, gpointer user_data)
{
GstInterleave *self = GST_INTERLEAVE (user_data);
gboolean ret = TRUE;
GST_DEBUG ("Got %s event on pad %s:%s", GST_EVENT_TYPE_NAME (event),
GST_DEBUG_PAD_NAME (data->pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_STOP:
GST_OBJECT_LOCK (self);
gst_event_replace (&self->pending_segment, NULL);
GST_OBJECT_UNLOCK (self);
break;
case GST_EVENT_SEGMENT:
{
GST_OBJECT_LOCK (self);
gst_event_replace (&self->pending_segment, event);
GST_OBJECT_UNLOCK (self);
break;
}
case GST_EVENT_CAPS:
{
GstCaps *caps;
GstAudioInfo info;
GValue *val;
guint channel;
gst_event_parse_caps (event, &caps);
if (!gst_audio_info_from_caps (&info, caps)) {
GST_WARNING_OBJECT (self, "invalid sink caps");
gst_event_unref (event);
event = NULL;
ret = FALSE;
break;
}
if (self->channel_positions_from_input
&& GST_AUDIO_INFO_CHANNELS (&info) == 1) {
channel = GST_INTERLEAVE_PAD_CAST (data->pad)->channel;
val = g_value_array_get_nth (self->input_channel_positions, channel);
g_value_set_enum (val, GST_AUDIO_INFO_POSITION (&info, 0));
}
if (!gst_pad_has_current_caps (data->pad))
g_atomic_int_add (&self->configured_sinkpads_counter, 1);
/* Last caps that are set on a sink pad are used as output caps */
if (g_atomic_int_get (&self->configured_sinkpads_counter) ==
self->channels) {
ret = gst_interleave_sink_setcaps (self, data->pad, caps, &info);
gst_event_unref (event);
event = NULL;
}
break;
}
case GST_EVENT_TAG:
GST_FIXME_OBJECT (self, "FIXME: merge tags and send after stream-start");
break;
default:
break;
}
/* now GstCollectPads can take care of the rest, e.g. EOS */
if (event != NULL)
return gst_collect_pads_event_default (pads, data, event, FALSE);
return ret;
}
static GstFlowReturn
mpegtsmux_collected (GstCollectPads2 * pads, MpegTsMux * mux)
{
GstFlowReturn ret = GST_FLOW_OK;
MpegTsPadData *best = NULL;
GST_DEBUG_OBJECT (mux, "Pads collected");
if (G_UNLIKELY (mux->first)) {
ret = mpegtsmux_create_streams (mux);
if (G_UNLIKELY (ret != GST_FLOW_OK))
return ret;
mpegtsdemux_prepare_srcpad (mux);
mux->first = FALSE;
}
best = mpegtsmux_choose_best_stream (mux);
if (best != NULL) {
TsMuxProgram *prog = best->prog;
GstBuffer *buf = best->queued_buf;
gint64 pts = -1;
gboolean delta = TRUE;
if (prog == NULL) {
GST_ELEMENT_ERROR (mux, STREAM, MUX,
("Stream on pad %" GST_PTR_FORMAT
" is not associated with any program", COLLECT_DATA_PAD (best)),
(NULL));
return GST_FLOW_ERROR;
}
if (mux->force_key_unit_event != NULL && best->stream->is_video_stream) {
GstEvent *event;
event = check_pending_key_unit_event (mux->force_key_unit_event,
&best->collect.segment, GST_BUFFER_TIMESTAMP (buf),
GST_BUFFER_FLAGS (buf), mux->pending_key_unit_ts);
if (event) {
GstClockTime running_time;
guint count;
GList *cur;
mux->pending_key_unit_ts = GST_CLOCK_TIME_NONE;
gst_event_replace (&mux->force_key_unit_event, NULL);
gst_video_event_parse_downstream_force_key_unit (event,
NULL, NULL, &running_time, NULL, &count);
GST_INFO_OBJECT (mux, "pushing downstream force-key-unit event %d "
"%" GST_TIME_FORMAT " count %d", gst_event_get_seqnum (event),
GST_TIME_ARGS (running_time), count);
gst_pad_push_event (mux->srcpad, event);
/* output PAT */
mux->tsmux->last_pat_ts = -1;
/* output PMT for each program */
for (cur = g_list_first (mux->tsmux->programs); cur != NULL;
cur = g_list_next (cur)) {
TsMuxProgram *program = (TsMuxProgram *) cur->data;
program->last_pmt_ts = -1;
}
tsmux_program_set_pcr_stream (prog, NULL);
}
}
if (G_UNLIKELY (prog->pcr_stream == NULL)) {
/* Take the first data stream for the PCR */
GST_DEBUG_OBJECT (COLLECT_DATA_PAD (best),
"Use stream (pid=%d) from pad as PCR for program (prog_id = %d)",
MPEG_TS_PAD_DATA (best)->pid, MPEG_TS_PAD_DATA (best)->prog_id);
/* Set the chosen PCR stream */
tsmux_program_set_pcr_stream (prog, best->stream);
}
g_return_val_if_fail (buf != NULL, GST_FLOW_ERROR);
if (best->stream->is_video_stream)
delta = GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
GST_DEBUG_OBJECT (mux, "delta: %d", delta);
GST_DEBUG_OBJECT (COLLECT_DATA_PAD (best),
"Chose stream for output (PID: 0x%04x)", best->pid);
if (GST_CLOCK_TIME_IS_VALID (best->cur_ts)) {
pts = GSTTIME_TO_MPEGTIME (best->cur_ts);
GST_DEBUG_OBJECT (mux, "Buffer has TS %" GST_TIME_FORMAT " pts %"
G_GINT64_FORMAT, GST_TIME_ARGS (best->cur_ts), pts);
}
tsmux_stream_add_data (best->stream, GST_BUFFER_DATA (buf),
GST_BUFFER_SIZE (buf), buf, pts, -1, !delta);
best->queued_buf = NULL;
mux->is_delta = delta;
while (tsmux_stream_bytes_in_buffer (best->stream) > 0) {
if (!tsmux_write_stream_packet (mux->tsmux, best->stream)) {
/* Failed writing data for some reason. Set appropriate error */
GST_DEBUG_OBJECT (mux, "Failed to write data packet");
GST_ELEMENT_ERROR (mux, STREAM, MUX,
("Failed writing output data to stream %04x", best->stream->id),
(NULL));
goto write_fail;
}
}
if (prog->pcr_stream == best->stream) {
mux->last_ts = best->last_ts;
}
} else {
/* FIXME: Drain all remaining streams */
/* At EOS */
gst_pad_push_event (mux->srcpad, gst_event_new_eos ());
}
return ret;
write_fail:
return mux->last_flow_ret;
}
static inline gboolean
gst_ts_shifter_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstTSShifter *ts = GST_TS_SHIFTER (parent);
gboolean ret = TRUE;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
{
GST_CAT_LOG_OBJECT (ts_flow, ts, "received eos event");
FLOW_MUTEX_LOCK (ts);
ts->is_eos = TRUE;
/* Ensure to unlock the pushing loop */
FLOW_SIGNAL_ADD (ts);
FLOW_MUTEX_UNLOCK (ts);
gst_event_unref (event);
break;
}
case GST_EVENT_SEGMENT:
{
GST_CAT_LOG_OBJECT (ts_flow, ts, "received newsegment event");
FLOW_MUTEX_LOCK (ts);
ts->unexpected = FALSE;
FLOW_MUTEX_UNLOCK (ts);
gst_event_unref (event);
break;
}
case GST_EVENT_FLUSH_START:
{
GST_CAT_LOG_OBJECT (ts_flow, ts, "received flush start event");
/* forward event */
gst_pad_push_event (ts->srcpad, event);
/* now unblock the chain function */
FLOW_MUTEX_LOCK (ts);
ts->srcresult = GST_FLOW_FLUSHING;
ts->sinkresult = GST_FLOW_FLUSHING;
/* unblock the loop and chain functions */
FLOW_SIGNAL_ADD (ts);
FLOW_MUTEX_UNLOCK (ts);
/* make sure it pauses, this should happen since we sent
* flush_start downstream. */
gst_pad_pause_task (ts->srcpad);
GST_CAT_LOG_OBJECT (ts_flow, ts, "loop stopped");
break;
}
case GST_EVENT_FLUSH_STOP:
{
GST_CAT_LOG_OBJECT (ts_flow, ts, "received flush stop event");
/* forward event */
gst_pad_push_event (ts->srcpad, event);
gst_ts_shifter_start (ts);
FLOW_MUTEX_LOCK (ts);
gst_event_replace (&ts->stream_start_event, NULL);
ts->cur_bytes = 0;
ts->srcresult = GST_FLOW_OK;
ts->sinkresult = GST_FLOW_OK;
ts->is_eos = FALSE;
ts->unexpected = FALSE;
gst_pad_start_task (ts->srcpad, (GstTaskFunction) gst_ts_shifter_loop,
ts->srcpad, NULL);
FLOW_MUTEX_UNLOCK (ts);
break;
}
case GST_EVENT_STREAM_START:
{
gst_event_replace (&ts->stream_start_event, event);
gst_event_unref (event);
break;
}
default:
{
GST_CAT_LOG_OBJECT (ts_flow, ts, "dropped event %s",
GST_EVENT_TYPE_NAME (event));
gst_event_unref (event);
ret = FALSE;
break;
}
}
return ret;
}
static gboolean
mpegtsmux_src_event (GstPad * pad, GstEvent * event)
{
MpegTsMux *mux = GST_MPEG_TSMUX (gst_pad_get_parent (pad));
gboolean res = TRUE;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CUSTOM_UPSTREAM:
{
GstIterator *iter;
GstIteratorResult iter_ret;
GstPad *sinkpad;
GstClockTime running_time;
gboolean all_headers, done;
guint count;
if (!gst_video_event_is_force_key_unit (event))
break;
gst_video_event_parse_upstream_force_key_unit (event,
&running_time, &all_headers, &count);
GST_INFO_OBJECT (mux, "received upstream force-key-unit event, "
"seqnum %d running_time %" GST_TIME_FORMAT " all_headers %d count %d",
gst_event_get_seqnum (event), GST_TIME_ARGS (running_time),
all_headers, count);
if (!all_headers)
break;
mux->pending_key_unit_ts = running_time;
gst_event_replace (&mux->force_key_unit_event, event);
iter = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (mux));
done = FALSE;
while (!done) {
gboolean res = FALSE, tmp;
iter_ret = gst_iterator_next (iter, (gpointer *) & sinkpad);
switch (iter_ret) {
case GST_ITERATOR_DONE:
done = TRUE;
break;
case GST_ITERATOR_OK:
GST_INFO_OBJECT (mux, "forwarding to %s",
gst_pad_get_name (sinkpad));
tmp = gst_pad_push_event (sinkpad, gst_event_ref (event));
GST_INFO_OBJECT (mux, "result %d", tmp);
/* succeed if at least one pad succeeds */
res |= tmp;
gst_object_unref (sinkpad);
break;
case GST_ITERATOR_ERROR:
done = TRUE;
break;
case GST_ITERATOR_RESYNC:
break;
}
}
gst_event_unref (event);
break;
}
default:
res = gst_pad_event_default (pad, event);
break;
}
gst_object_unref (mux);
return res;
}
static GstStateChangeReturn
gst_kate_enc_change_state (GstElement * element, GstStateChange transition)
{
GstKateEnc *ke = GST_KATE_ENC (element);
GstStateChangeReturn res;
int ret;
GST_INFO_OBJECT (ke, "gst_kate_enc_change_state");
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
ke->tags = gst_tag_list_new_empty ();
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
GST_DEBUG_OBJECT (ke, "READY -> PAUSED, initializing kate state");
ret = kate_info_init (&ke->ki);
if (ret < 0) {
GST_WARNING_OBJECT (ke, "failed to initialize kate info structure: %s",
gst_kate_util_get_error_message (ret));
break;
}
if (ke->language) {
ret = kate_info_set_language (&ke->ki, ke->language);
if (ret < 0) {
GST_WARNING_OBJECT (ke, "failed to set stream language: %s",
gst_kate_util_get_error_message (ret));
break;
}
}
if (ke->category) {
ret = kate_info_set_category (&ke->ki, ke->category);
if (ret < 0) {
GST_WARNING_OBJECT (ke, "failed to set stream category: %s",
gst_kate_util_get_error_message (ret));
break;
}
}
ret =
kate_info_set_original_canvas_size (&ke->ki,
ke->original_canvas_width, ke->original_canvas_height);
if (ret < 0) {
GST_WARNING_OBJECT (ke, "failed to set original canvas size: %s",
gst_kate_util_get_error_message (ret));
break;
}
ret = kate_comment_init (&ke->kc);
if (ret < 0) {
GST_WARNING_OBJECT (ke,
"failed to initialize kate comment structure: %s",
gst_kate_util_get_error_message (ret));
break;
}
ret = kate_encode_init (&ke->k, &ke->ki);
if (ret < 0) {
GST_WARNING_OBJECT (ke, "failed to initialize kate state: %s",
gst_kate_util_get_error_message (ret));
break;
}
ke->headers_sent = FALSE;
ke->initialized = TRUE;
ke->last_timestamp = 0;
ke->latest_end_time = 0;
ke->format = GST_KATE_FORMAT_UNDEFINED;
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
case GST_STATE_CHANGE_READY_TO_NULL:
gst_tag_list_unref (ke->tags);
ke->tags = NULL;
break;
default:
break;
}
res = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (res == GST_STATE_CHANGE_FAILURE) {
GST_WARNING_OBJECT (ke, "Parent failed to change state");
return res;
}
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
GST_DEBUG_OBJECT (ke, "PAUSED -> READY, clearing kate state");
if (ke->initialized) {
kate_clear (&ke->k);
kate_info_clear (&ke->ki);
kate_comment_clear (&ke->kc);
ke->initialized = FALSE;
ke->last_timestamp = 0;
ke->latest_end_time = 0;
}
gst_event_replace (&ke->pending_segment, NULL);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
GST_DEBUG_OBJECT (ke, "State change done");
return res;
}
static GstFlowReturn
gst_aiff_parse_stream_headers (GstAiffParse * aiff)
{
GstFlowReturn res;
GstBuffer *buf;
guint32 tag, size;
gboolean gotdata = FALSE;
gboolean done = FALSE;
GstEvent **event_p;
GstFormat bformat;
gint64 upstream_size = 0;
bformat = GST_FORMAT_BYTES;
gst_pad_query_peer_duration (aiff->sinkpad, &bformat, &upstream_size);
GST_DEBUG_OBJECT (aiff, "upstream size %" G_GUINT64_FORMAT, upstream_size);
/* loop headers until we get data */
while (!done) {
if (aiff->streaming) {
if (!gst_aiff_parse_peek_chunk_info (aiff, &tag, &size))
return GST_FLOW_OK;
} else {
if ((res =
gst_pad_pull_range (aiff->sinkpad, aiff->offset, 8,
&buf)) != GST_FLOW_OK)
goto header_read_error;
tag = GST_READ_UINT32_LE (GST_BUFFER_DATA (buf));
size = GST_READ_UINT32_BE (GST_BUFFER_DATA (buf) + 4);
}
GST_INFO_OBJECT (aiff,
"Got TAG: %" GST_FOURCC_FORMAT ", offset %" G_GUINT64_FORMAT,
GST_FOURCC_ARGS (tag), aiff->offset);
/* We just keep reading chunks until we find the one we're interested in.
*/
switch (tag) {
case GST_MAKE_FOURCC ('C', 'O', 'M', 'M'):{
if (aiff->streaming) {
if (!gst_aiff_parse_peek_chunk (aiff, &tag, &size))
return GST_FLOW_OK;
gst_adapter_flush (aiff->adapter, 8);
aiff->offset += 8;
buf = gst_adapter_take_buffer (aiff->adapter, size);
} else {
if ((res = gst_aiff_parse_read_chunk (aiff,
&aiff->offset, &tag, &buf)) != GST_FLOW_OK)
return res;
}
if (!gst_aiff_parse_parse_comm (aiff, buf)) {
gst_buffer_unref (buf);
goto parse_header_error;
}
gst_buffer_unref (buf);
/* do sanity checks of header fields */
if (aiff->channels == 0)
goto no_channels;
if (aiff->rate == 0)
goto no_rate;
GST_DEBUG_OBJECT (aiff, "creating the caps");
aiff->caps = gst_aiff_parse_create_caps (aiff);
if (!aiff->caps)
goto unknown_format;
gst_pad_set_caps (aiff->srcpad, aiff->caps);
aiff->bytes_per_sample = aiff->channels * aiff->width / 8;
aiff->bps = aiff->bytes_per_sample * aiff->rate;
if (aiff->bytes_per_sample <= 0)
goto no_bytes_per_sample;
aiff->got_comm = TRUE;
break;
}
case GST_MAKE_FOURCC ('S', 'S', 'N', 'D'):{
GstFormat fmt;
GstBuffer *ssndbuf = NULL;
const guint8 *ssnddata = NULL;
guint32 datasize;
GST_DEBUG_OBJECT (aiff, "Got 'SSND' TAG, size : %d", size);
/* Now, read the 8-byte header in the SSND chunk */
if (aiff->streaming) {
if (!gst_aiff_parse_peek_data (aiff, 16, &ssnddata))
return GST_FLOW_OK;
} else {
gst_buffer_unref (buf);
if ((res =
gst_pad_pull_range (aiff->sinkpad, aiff->offset, 16,
&ssndbuf)) != GST_FLOW_OK)
goto header_read_error;
ssnddata = GST_BUFFER_DATA (ssndbuf);
}
aiff->ssnd_offset = GST_READ_UINT32_BE (ssnddata + 8);
aiff->ssnd_blocksize = GST_READ_UINT32_BE (ssnddata + 12);
gotdata = TRUE;
if (aiff->streaming) {
gst_adapter_flush (aiff->adapter, 16);
} else {
gst_buffer_unref (ssndbuf);
}
/* 8 byte chunk header, 16 byte SSND header */
aiff->offset += 24;
datasize = size - 16;
aiff->datastart = aiff->offset + aiff->ssnd_offset;
/* file might be truncated */
fmt = GST_FORMAT_BYTES;
if (upstream_size) {
size = MIN (datasize, (upstream_size - aiff->datastart));
}
aiff->datasize = (guint64) datasize;
aiff->dataleft = (guint64) datasize;
aiff->end_offset = datasize + aiff->datastart;
if (!aiff->streaming) {
/* We will continue looking at chunks until the end - to read tags,
* etc. */
aiff->offset += datasize;
}
GST_DEBUG_OBJECT (aiff, "datasize = %d", datasize);
if (aiff->streaming) {
done = TRUE;
}
break;
}
default:
gst_aiff_parse_ignore_chunk (aiff, buf, tag, size);
}
if (upstream_size && (aiff->offset >= upstream_size)) {
/* Now we have gone through the whole file */
done = TRUE;
}
}
/* We read all the chunks (in pull mode) or reached the SSND chunk
* (in push mode). We must have both COMM and SSND now; error out
* otherwise.
*/
if (!aiff->got_comm) {
GST_WARNING_OBJECT (aiff, "Failed to find COMM chunk");
goto no_header;
}
if (!gotdata) {
GST_WARNING_OBJECT (aiff, "Failed to find SSND chunk");
goto no_data;
}
GST_DEBUG_OBJECT (aiff, "Finished parsing headers");
if (gst_aiff_parse_calculate_duration (aiff)) {
gst_segment_init (&aiff->segment, GST_FORMAT_TIME);
gst_segment_set_duration (&aiff->segment, GST_FORMAT_TIME, aiff->duration);
} else {
/* no bitrate, let downstream peer do the math, we'll feed it bytes. */
gst_segment_init (&aiff->segment, GST_FORMAT_BYTES);
gst_segment_set_duration (&aiff->segment, GST_FORMAT_BYTES, aiff->datasize);
}
/* now we have all the info to perform a pending seek if any, if no
* event, this will still do the right thing and it will also send
* the right newsegment event downstream. */
gst_aiff_parse_perform_seek (aiff, aiff->seek_event);
/* remove pending event */
event_p = &aiff->seek_event;
gst_event_replace (event_p, NULL);
/* we just started, we are discont */
aiff->discont = TRUE;
aiff->state = AIFF_PARSE_DATA;
return GST_FLOW_OK;
/* ERROR */
no_header:
{
GST_ELEMENT_ERROR (aiff, STREAM, TYPE_NOT_FOUND, (NULL),
("Invalid AIFF header (no COMM found)"));
return GST_FLOW_ERROR;
}
no_data:
{
GST_ELEMENT_ERROR (aiff, STREAM, TYPE_NOT_FOUND, (NULL),
("Invalid AIFF: no SSND found"));
return GST_FLOW_ERROR;
}
parse_header_error:
{
GST_ELEMENT_ERROR (aiff, STREAM, DEMUX, (NULL),
("Couldn't parse audio header"));
return GST_FLOW_ERROR;
}
no_channels:
{
GST_ELEMENT_ERROR (aiff, STREAM, FAILED, (NULL),
("Stream claims to contain no channels - invalid data"));
return GST_FLOW_ERROR;
}
no_rate:
{
GST_ELEMENT_ERROR (aiff, STREAM, FAILED, (NULL),
("Stream with sample_rate == 0 - invalid data"));
return GST_FLOW_ERROR;
}
no_bytes_per_sample:
{
GST_ELEMENT_ERROR (aiff, STREAM, FAILED, (NULL),
("Could not caluclate bytes per sample - invalid data"));
return GST_FLOW_ERROR;
}
unknown_format:
{
GST_ELEMENT_ERROR (aiff, STREAM, TYPE_NOT_FOUND, (NULL),
("No caps found for format 0x%x, %d channels, %d Hz",
aiff->format, aiff->channels, aiff->rate));
return GST_FLOW_ERROR;
}
header_read_error:
{
GST_ELEMENT_ERROR (aiff, STREAM, DEMUX, (NULL),
("Couldn't read in header"));
return GST_FLOW_ERROR;
}
}
static gboolean
gst_rtp_base_depayload_handle_event (GstRTPBaseDepayload * filter,
GstEvent * event)
{
gboolean res = TRUE;
gboolean forward = TRUE;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_STOP:
GST_OBJECT_LOCK (filter);
gst_segment_init (&filter->segment, GST_FORMAT_UNDEFINED);
GST_OBJECT_UNLOCK (filter);
filter->need_newsegment = TRUE;
filter->priv->next_seqnum = -1;
gst_event_replace (&filter->priv->segment_event, NULL);
break;
case GST_EVENT_CAPS:
{
GstCaps *caps;
gst_event_parse_caps (event, &caps);
res = gst_rtp_base_depayload_setcaps (filter, caps);
forward = FALSE;
break;
}
case GST_EVENT_SEGMENT:
{
GstSegment segment;
GST_OBJECT_LOCK (filter);
gst_event_copy_segment (event, &segment);
if (segment.format != GST_FORMAT_TIME) {
GST_ERROR_OBJECT (filter, "Segment with non-TIME format not supported");
res = FALSE;
}
filter->segment = segment;
GST_OBJECT_UNLOCK (filter);
/* 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:
{
GstRTPBaseDepayloadClass *bclass;
bclass = GST_RTP_BASE_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 GAP event.
* Subclasses can override and do 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;
}
