static gboolean
gst_frei0r_mixer_src_query (GstPad * pad, GstObject * object, GstQuery * query)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (object);
gboolean ret = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
ret = gst_pad_query (self->sink0, query);
break;
case GST_QUERY_DURATION:
ret = gst_frei0r_mixer_src_query_duration (self, query);
break;
case GST_QUERY_LATENCY:
ret = gst_frei0r_mixer_src_query_latency (self, query);
break;
case GST_QUERY_CAPS:
{
GstCaps *filter, *caps;
gst_query_parse_caps (query, &filter);
caps = gst_frei0r_mixer_get_caps (self, pad, filter);
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
break;
}
default:
ret = gst_pad_query_default (pad, GST_OBJECT (self), query);
break;
}
return ret;
}
static gboolean
gst_frei0r_mixer_src_query (GstPad * pad, GstQuery * query)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (gst_pad_get_parent (pad));
gboolean ret = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
ret = gst_pad_query (self->sink0, query);
break;
case GST_QUERY_DURATION:
ret = gst_frei0r_mixer_src_query_duration (self, query);
break;
case GST_QUERY_LATENCY:
ret = gst_frei0r_mixer_src_query_latency (self, query);
break;
default:
ret = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (self);
return ret;
}
static gboolean
splitmux_part_pad_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (pad);
GstSplitMuxPartReader *reader = part_pad->reader;
GstPad *target;
gboolean ret = FALSE;
gboolean active;
SPLITMUX_PART_LOCK (reader);
target = gst_object_ref (part_pad->target);
active = reader->active;
SPLITMUX_PART_UNLOCK (reader);
if (active) {
GST_LOG_OBJECT (pad, "Forwarding query %" GST_PTR_FORMAT
" from %" GST_PTR_FORMAT " on %" GST_PTR_FORMAT, query, pad, target);
ret = gst_pad_query (target, query);
}
gst_object_unref (target);
return ret;
}
static gboolean
audioresample_query (GstPad * pad, GstQuery * query)
{
GstAudioresample *audioresample =
GST_AUDIORESAMPLE (gst_pad_get_parent (pad));
GstBaseTransform *trans = GST_BASE_TRANSFORM (audioresample);
gboolean res = TRUE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:
{
GstClockTime min, max;
gboolean live;
guint64 latency;
GstPad *peer;
gint rate = audioresample->i_rate;
gint resampler_latency = audioresample->filter_length / 2;
if (gst_base_transform_is_passthrough (trans))
resampler_latency = 0;
if ((peer = gst_pad_get_peer (trans->sinkpad))) {
if ((res = gst_pad_query (peer, query))) {
gst_query_parse_latency (query, &live, &min, &max);
GST_DEBUG ("Peer latency: min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min), GST_TIME_ARGS (max));
/* add our own latency */
if (rate != 0 && resampler_latency != 0)
latency =
gst_util_uint64_scale (resampler_latency, GST_SECOND, rate);
else
latency = 0;
GST_DEBUG ("Our latency: %" GST_TIME_FORMAT, GST_TIME_ARGS (latency));
min += latency;
if (max != GST_CLOCK_TIME_NONE)
max += latency;
GST_DEBUG ("Calculated total latency : min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min), GST_TIME_ARGS (max));
gst_query_set_latency (query, live, min, max);
}
gst_object_unref (peer);
}
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (audioresample);
return res;
}
static gboolean
gst_y4m_dec_src_query (GstPad * pad, GstQuery * query)
{
GstY4mDec *y4mdec = GST_Y4M_DEC (gst_pad_get_parent (pad));
gboolean res = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DURATION:
{
GstFormat format;
GstPad *peer;
GST_DEBUG ("duration query");
gst_query_parse_duration (query, &format, NULL);
if (format != GST_FORMAT_TIME) {
res = FALSE;
GST_DEBUG_OBJECT (y4mdec, "not handling duration query in format %d",
format);
break;
}
peer = gst_pad_get_peer (y4mdec->sinkpad);
if (peer) {
GstQuery *peer_query = gst_query_new_duration (GST_FORMAT_BYTES);
res = gst_pad_query (peer, peer_query);
if (res) {
gint64 duration;
int n_frames;
gst_query_parse_duration (peer_query, &format, &duration);
n_frames = gst_y4m_dec_bytes_to_frames (y4mdec, duration);
GST_DEBUG ("duration in frames %d", n_frames);
duration = gst_y4m_dec_frames_to_timestamp (y4mdec, n_frames);
GST_DEBUG ("duration in time %" GST_TIME_FORMAT,
GST_TIME_ARGS (duration));
gst_query_set_duration (query, GST_FORMAT_TIME, duration);
res = TRUE;
}
gst_query_unref (peer_query);
gst_object_unref (peer);
}
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (y4mdec);
return res;
}
static gboolean
gst_audio_fx_base_fir_filter_query (GstPad * pad, GstQuery * query)
{
GstAudioFXBaseFIRFilter *self =
GST_AUDIO_FX_BASE_FIR_FILTER (gst_pad_get_parent (pad));
gboolean res = TRUE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:
{
GstClockTime min, max;
gboolean live;
guint64 latency;
GstPad *peer;
gint rate = GST_AUDIO_FILTER (self)->format.rate;
if (rate == 0) {
res = FALSE;
} else if ((peer = gst_pad_get_peer (GST_BASE_TRANSFORM (self)->sinkpad))) {
if ((res = gst_pad_query (peer, query))) {
gst_query_parse_latency (query, &live, &min, &max);
GST_DEBUG_OBJECT (self, "Peer latency: min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min), GST_TIME_ARGS (max));
if (self->fft && !self->low_latency)
latency = self->block_length - self->kernel_length + 1;
else
latency = self->latency;
/* add our own latency */
latency = gst_util_uint64_scale_round (latency, GST_SECOND, rate);
GST_DEBUG_OBJECT (self, "Our latency: %"
GST_TIME_FORMAT, GST_TIME_ARGS (latency));
min += latency;
if (max != GST_CLOCK_TIME_NONE)
max += latency;
GST_DEBUG_OBJECT (self, "Calculated total latency : min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min), GST_TIME_ARGS (max));
gst_query_set_latency (query, live, min, max);
}
gst_object_unref (peer);
}
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (self);
return res;
}
static gboolean
gst_base_video_encoder_src_query (GstPad * pad, GstQuery * query)
{
GstBaseVideoEncoder *enc;
gboolean res;
GstPad *peerpad;
enc = GST_BASE_VIDEO_ENCODER (gst_pad_get_parent (pad));
peerpad = gst_pad_get_peer (GST_BASE_VIDEO_CODEC_SINK_PAD (enc));
switch GST_QUERY_TYPE
(query) {
case GST_QUERY_CONVERT:
{
GstFormat src_fmt, dest_fmt;
gint64 src_val, dest_val;
gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
res =
gst_base_video_encoded_video_convert (&GST_BASE_VIDEO_CODEC
(enc)->state, src_fmt, src_val, &dest_fmt, &dest_val);
if (!res)
goto error;
gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
break;
}
case GST_QUERY_LATENCY:
{
gboolean live;
GstClockTime min_latency, max_latency;
res = gst_pad_query (peerpad, query);
if (res) {
gst_query_parse_latency (query, &live, &min_latency, &max_latency);
min_latency += enc->min_latency;
if (max_latency != GST_CLOCK_TIME_NONE) {
max_latency += enc->max_latency;
}
gst_query_set_latency (query, live, min_latency, max_latency);
}
}
break;
default:
res = gst_pad_query_default (pad, query);
}
gst_object_unref (peerpad);
gst_object_unref (enc);
return res;
error:
GST_DEBUG_OBJECT (enc, "query failed");
gst_object_unref (peerpad);
gst_object_unref (enc);
return res;
}
static gboolean
gst_schro_dec_src_query (GstPad *pad, GstQuery *query)
{
GstSchroDec *dec;
gboolean res = FALSE;
dec = GST_SCHRO_DEC (gst_pad_get_parent(pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
{
GstFormat format;
gint64 time;
gint64 value;
gst_query_parse_position (query, &format, NULL);
time = gst_util_uint64_scale (granulepos_to_frame (dec->granulepos),
dec->fps_n, dec->fps_d);
//time -= dec->segment.start;
time += dec->segment.time;
GST_DEBUG("query position %lld", time);
res = gst_schro_dec_src_convert (pad, GST_FORMAT_TIME, time,
&format, &value);
if (!res) goto error;
gst_query_set_position (query, format, value);
break;
}
case GST_QUERY_DURATION:
res = gst_pad_query (GST_PAD_PEER (dec->sinkpad), query);
if (!res) goto error;
break;
case GST_QUERY_CONVERT:
{
GstFormat src_fmt, dest_fmt;
gint64 src_val, dest_val;
gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
res = gst_schro_dec_src_convert (pad, src_fmt, src_val, &dest_fmt,
&dest_val);
if (!res) goto error;
gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
done:
gst_object_unref (dec);
return res;
error:
GST_DEBUG_OBJECT (dec, "query failed");
goto done;
}
static gboolean
gst_frei0r_mixer_sink_query (GstPad * pad, GstQuery * query)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (gst_pad_get_parent (pad));
gboolean ret = gst_pad_query (self->src, query);
gst_object_unref (self);
return ret;
}
static gboolean
gst_proxy_pad_do_query (GstPad * pad, GstQuery * query)
{
gboolean res = FALSE;
GstPad *target = gst_proxy_pad_get_target (pad);
if (target) {
res = gst_pad_query (target, query);
gst_object_unref (target);
}
return res;
}
static gboolean
event_forward_func (GstPad * pad, EventData * evdata)
{
gboolean ret = TRUE;
GstPad *peer = gst_pad_get_peer (pad);
GstAggregatorPadPrivate *padpriv = GST_AGGREGATOR_PAD (pad)->priv;
if (peer) {
ret = gst_pad_send_event (peer, gst_event_ref (evdata->event));
GST_DEBUG_OBJECT (pad, "return of event push is %d", ret);
gst_object_unref (peer);
}
if (ret == FALSE) {
if (GST_EVENT_TYPE (evdata->event) == GST_EVENT_SEEK)
GST_ERROR_OBJECT (pad, "Event %" GST_PTR_FORMAT " failed", evdata->event);
if (GST_EVENT_TYPE (evdata->event) == GST_EVENT_SEEK) {
GstQuery *seeking = gst_query_new_seeking (GST_FORMAT_TIME);
if (gst_pad_query (peer, seeking)) {
gboolean seekable;
gst_query_parse_seeking (seeking, NULL, &seekable, NULL, NULL);
if (seekable == FALSE) {
GST_INFO_OBJECT (pad,
"Source not seekable, We failed but it does not matter!");
ret = TRUE;
}
} else {
GST_ERROR_OBJECT (pad, "Query seeking FAILED");
}
}
if (evdata->flush) {
padpriv->pending_flush_start = FALSE;
padpriv->pending_flush_stop = FALSE;
}
} else {
evdata->one_actually_seeked = TRUE;
}
evdata->result &= ret;
/* Always send to all pads */
return FALSE;
}
static gboolean
gst_type_find_handle_src_query (GstPad * pad, GstQuery * query)
{
GstTypeFindElement *typefind;
gboolean res = FALSE;
GstPad *peer;
typefind = GST_TYPE_FIND_ELEMENT (GST_PAD_PARENT (pad));
peer = gst_pad_get_peer (typefind->sink);
if (peer == NULL)
return FALSE;
res = gst_pad_query (peer, query);
if (!res)
goto out;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
{
gint64 peer_pos;
GstFormat format;
if (typefind->store == NULL)
goto out;
gst_query_parse_position (query, &format, &peer_pos);
/* FIXME: this code assumes that there's no discont in the queue */
switch (format) {
case GST_FORMAT_BYTES:
peer_pos -= GST_BUFFER_SIZE (typefind->store);
break;
default:
/* FIXME */
break;
}
gst_query_set_position (query, format, peer_pos);
break;
}
default:
break;
}
out:
gst_object_unref (peer);
return res;
}
static gboolean
gst_base_video_decoder_src_query (GstPad * pad, GstQuery * query)
{
GstBaseVideoDecoder *dec;
gboolean res = TRUE;
dec = GST_BASE_VIDEO_DECODER (gst_pad_get_parent (pad));
switch GST_QUERY_TYPE
(query) {
case GST_QUERY_POSITION:
{
GstFormat format;
gint64 time;
gst_query_parse_position (query, &format, NULL);
GST_DEBUG ("query in format %d", format);
if (format != GST_FORMAT_TIME) {
goto error;
}
time = dec->last_timestamp;
time = gst_segment_to_stream_time (&dec->segment, GST_FORMAT_TIME, time);
gst_query_set_position (query, format, time);
res = TRUE;
break;
}
case GST_QUERY_DURATION:
/* FIXME: approximate using bitrate if upstream doesn't answear */
res = gst_pad_query (dec->sinkpad, query);
break;
default:
res = gst_pad_query_default (pad, query);
}
gst_object_unref (dec);
return res;
error:
GST_ERROR_OBJECT (dec, "query failed");
gst_object_unref (dec);
return res;
}
static gboolean
gst_shape_wipe_src_query (GstPad * pad, GstQuery * query)
{
GstShapeWipe *self = GST_SHAPE_WIPE (gst_pad_get_parent (pad));
gboolean ret;
GstPad *peer = gst_pad_get_peer (self->video_sinkpad);
GST_DEBUG_OBJECT (pad, "Handling query of type '%s'",
gst_query_type_get_name (GST_QUERY_TYPE (query)));
if (!peer) {
GST_INFO_OBJECT (pad, "No peer yet");
ret = FALSE;
} else {
ret = gst_pad_query (peer, query);
gst_object_unref (peer);
}
gst_object_unref (self);
return ret;
}
static gboolean
gst_webrtc_echo_probe_src_event (GstBaseTransform * btrans, GstEvent * event)
{
GstBaseTransformClass *klass;
GstWebrtcEchoProbe *self = GST_WEBRTC_ECHO_PROBE (btrans);
GstClockTime latency;
GstClockTime upstream_latency = 0;
GstQuery *query;
klass = GST_BASE_TRANSFORM_CLASS (gst_webrtc_echo_probe_parent_class);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_LATENCY:
gst_event_parse_latency (event, &latency);
query = gst_query_new_latency ();
if (gst_pad_query (btrans->srcpad, query)) {
gst_query_parse_latency (query, NULL, &upstream_latency, NULL);
if (!GST_CLOCK_TIME_IS_VALID (upstream_latency))
upstream_latency = 0;
}
GST_WEBRTC_ECHO_PROBE_LOCK (self);
self->latency = latency;
self->delay = upstream_latency / GST_MSECOND;
GST_WEBRTC_ECHO_PROBE_UNLOCK (self);
GST_DEBUG_OBJECT (self, "We have a latency of %" GST_TIME_FORMAT
" and delay of %ims", GST_TIME_ARGS (latency),
(gint) (upstream_latency / GST_MSECOND));
break;
default:
break;
}
return klass->src_event (btrans, event);
}
static gboolean
theora_parse_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
GstTheoraParse *parse;
gboolean res = FALSE;
parse = GST_THEORA_PARSE (parent);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
{
gint64 frame, value;
GstFormat my_format, format;
gint64 time;
frame = parse->prev_frame;
GST_LOG_OBJECT (parse,
"query %p: we have current frame: %" G_GINT64_FORMAT, query, frame);
/* parse format */
gst_query_parse_position (query, &format, NULL);
/* and convert to the final format in two steps with time as the
* intermediate step */
my_format = GST_FORMAT_TIME;
if (!(res =
theora_parse_src_convert (parse->sinkpad, GST_FORMAT_DEFAULT,
frame, &my_format, &time)))
goto error;
/* fixme: handle segments
time = (time - parse->segment.start) + parse->segment.time;
*/
GST_LOG_OBJECT (parse,
"query %p: our time: %" GST_TIME_FORMAT " (conv to %s)",
query, GST_TIME_ARGS (time), gst_format_get_name (format));
if (!(res =
theora_parse_src_convert (pad, my_format, time, &format, &value)))
goto error;
gst_query_set_position (query, format, value);
GST_LOG_OBJECT (parse,
"query %p: we return %" G_GINT64_FORMAT " (format %u)", query, value,
format);
break;
}
case GST_QUERY_DURATION:
/* forward to peer for total */
if (!(res = gst_pad_query (GST_PAD_PEER (parse->sinkpad), query)))
goto error;
break;
case GST_QUERY_CONVERT:
{
GstFormat src_fmt, dest_fmt;
gint64 src_val, dest_val;
gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
if (!(res =
theora_parse_src_convert (pad, src_fmt, src_val, &dest_fmt,
&dest_val)))
goto error;
gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
break;
}
default:
res = gst_pad_query_default (pad, parent, query);
break;
}
done:
return res;
/* ERRORS */
error:
{
GST_DEBUG_OBJECT (parse, "query failed");
goto done;
}
}
void test_queries()
{
GstBin *bin;
GstElement *src, *sink;
GstStateChangeReturn ret;
GstPad *pad;
GstQuery *dur, *pos;
xmlfile = "gstquery_test_queries";
std_log(LOG_FILENAME_LINE, "Test Started test_queries");
fail_unless ((bin = (GstBin *) gst_pipeline_new (NULL)) != NULL,
"Could not create pipeline");
fail_unless ((src = gst_element_factory_make ("fakesrc", NULL)) != NULL,
"Could not create fakesrc");
g_object_set (src, "datarate", 200, "sizetype", 2, NULL);
fail_unless ((sink = gst_element_factory_make ("fakesink", NULL)) != NULL,
"Could not create fakesink");
g_object_set (sink, "sync", TRUE, NULL);
fail_unless ((dur = gst_query_new_duration (GST_FORMAT_BYTES)) != NULL,
"Could not prepare duration query");
fail_unless ((pos = gst_query_new_position (GST_FORMAT_BYTES)) != NULL,
"Could not prepare position query");
fail_unless (gst_bin_add (bin, src), "Could not add src to bin");
fail_unless (gst_bin_add (bin, sink), "Could not add sink to bin");
fail_unless (gst_element_link (src, sink), "could not link src and sink");
ret = gst_element_set_state (GST_ELEMENT (bin), GST_STATE_PLAYING);
fail_if (ret == GST_STATE_CHANGE_FAILURE, "Failed to set pipeline PLAYING");
if (ret == GST_STATE_CHANGE_ASYNC)
gst_element_get_state (GST_ELEMENT (bin), NULL, NULL, GST_CLOCK_TIME_NONE);
/* Query the bin */
fail_unless (gst_element_query (GST_ELEMENT (bin), pos),
"Could not query pipeline position");
fail_unless (gst_element_query (GST_ELEMENT (bin), dur),
"Could not query pipeline duration");
/* Query elements */
fail_unless (gst_element_query (GST_ELEMENT (src), pos),
"Could not query position of fakesrc");
fail_unless (gst_element_query (GST_ELEMENT (src), pos),
"Could not query duration of fakesrc");
fail_unless (gst_element_query (GST_ELEMENT (sink), pos),
"Could not query position of fakesink");
fail_unless (gst_element_query (GST_ELEMENT (sink), pos),
"Could not query duration of fakesink");
/* Query pads */
fail_unless ((pad = gst_element_get_pad (src, "src")) != NULL,
"Could not get source pad of fakesrc");
fail_unless (gst_pad_query (pad, pos),
"Could not query position of fakesrc src pad");
fail_unless (gst_pad_query (pad, dur),
"Could not query duration of fakesrc src pad");
gst_object_unref (pad);
/* We don't query the sink pad of fakesink, it doesn't
* handle downstream queries atm, but it might later, who knows? */
ret = gst_element_set_state (GST_ELEMENT (bin), GST_STATE_NULL);
fail_if (ret == GST_STATE_CHANGE_FAILURE, "Failed to set pipeline NULL");
if (ret == GST_STATE_CHANGE_ASYNC)
gst_element_get_state (GST_ELEMENT (bin), NULL, NULL, GST_CLOCK_TIME_NONE);
gst_query_unref (dur);
gst_query_unref (pos);
gst_object_unref (bin);
std_log(LOG_FILENAME_LINE, "Test Successful");
create_xml(0);
}
static gboolean
vorbis_parse_src_query (GstPad * pad, GstQuery * query)
{
gint64 granulepos;
GstVorbisParse *parse;
gboolean res = FALSE;
parse = GST_VORBIS_PARSE (GST_PAD_PARENT (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
{
GstFormat format;
gint64 value;
granulepos = parse->prev_granulepos;
gst_query_parse_position (query, &format, NULL);
/* and convert to the final format */
if (!(res =
vorbis_parse_convert (pad, GST_FORMAT_DEFAULT, granulepos,
&format, &value)))
goto error;
/* fixme: support segments
value = (value - parse->segment_start) + parse->segment_time;
*/
gst_query_set_position (query, format, value);
GST_LOG_OBJECT (parse, "query %p: peer returned granulepos: %"
G_GUINT64_FORMAT " - we return %" G_GUINT64_FORMAT " (format %u)",
query, granulepos, value, format);
break;
}
case GST_QUERY_DURATION:
{
/* fixme: not threadsafe */
/* query peer for total length */
if (!gst_pad_is_linked (parse->sinkpad)) {
GST_WARNING_OBJECT (parse, "sink pad %" GST_PTR_FORMAT " is not linked",
parse->sinkpad);
goto error;
}
if (!(res = gst_pad_query (GST_PAD_PEER (parse->sinkpad), query)))
goto error;
break;
}
case GST_QUERY_CONVERT:
{
GstFormat src_fmt, dest_fmt;
gint64 src_val, dest_val;
gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
if (!(res =
vorbis_parse_convert (pad, src_fmt, src_val, &dest_fmt,
&dest_val)))
goto error;
gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
return res;
error:
{
GST_WARNING_OBJECT (parse, "error handling query");
return res;
}
}
static gboolean
gst_video_rate_query (GstBaseTransform * trans, GstPadDirection direction,
GstQuery * query)
{
GstVideoRate *videorate = GST_VIDEO_RATE (trans);
gboolean res = FALSE;
GstPad *otherpad;
otherpad = (direction == GST_PAD_SRC) ?
GST_BASE_TRANSFORM_SINK_PAD (trans) : GST_BASE_TRANSFORM_SRC_PAD (trans);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:
{
GstClockTime min, max;
gboolean live;
guint64 latency;
guint64 avg_period;
GstPad *peer;
GST_OBJECT_LOCK (videorate);
avg_period = videorate->average_period_set;
GST_OBJECT_UNLOCK (videorate);
if (avg_period == 0 && (peer = gst_pad_get_peer (otherpad))) {
if ((res = gst_pad_query (peer, query))) {
gst_query_parse_latency (query, &live, &min, &max);
GST_DEBUG_OBJECT (videorate, "Peer latency: min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min), GST_TIME_ARGS (max));
if (videorate->from_rate_numerator != 0) {
/* add latency. We don't really know since we hold on to the frames
* until we get a next frame, which can be anything. We assume
* however that this will take from_rate time. */
latency = gst_util_uint64_scale (GST_SECOND,
videorate->from_rate_denominator,
videorate->from_rate_numerator);
} else {
/* no input framerate, we don't know */
latency = 0;
}
GST_DEBUG_OBJECT (videorate, "Our latency: %"
GST_TIME_FORMAT, GST_TIME_ARGS (latency));
min += latency;
if (max != -1)
max += latency;
GST_DEBUG_OBJECT (videorate, "Calculated total latency : min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min), GST_TIME_ARGS (max));
gst_query_set_latency (query, live, min, max);
}
gst_object_unref (peer);
break;
}
/* Simple fallthrough if we don't have a latency or not a peer that we
* can't ask about its latency yet.. */
}
default:
res =
GST_BASE_TRANSFORM_CLASS (parent_class)->query (trans, direction,
query);
break;
}
return res;
}
static gboolean mpegts_demuxer_src_query (GstPad *pad, GstObject *parent, GstQuery *query)
{
MpegTSDemuxer *demuxer = MPEGTS_DEMUXER(parent);
return gst_pad_query(demuxer->sinkpad, query);
}
bool Pad::query(const QueryPtr & query)
{
return gst_pad_query(object<GstPad>(), query);
}
static gboolean
theora_dec_src_query (GstPad * pad, GstQuery * query)
{
GstTheoraDec *dec;
gboolean res = FALSE;
dec = GST_THEORA_DEC (gst_pad_get_parent (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
{
gint64 granulepos, value;
GstFormat my_format, format;
gint64 time;
/* we can convert a granule position to everything */
granulepos = dec->granulepos;
GST_LOG_OBJECT (dec,
"query %p: we have current granule: %lld", query, granulepos);
/* parse format */
gst_query_parse_position (query, &format, NULL);
/* and convert to the final format in two steps with time as the
* intermediate step */
my_format = GST_FORMAT_TIME;
if (!(res =
theora_dec_sink_convert (dec->sinkpad, GST_FORMAT_DEFAULT,
granulepos, &my_format, &time)))
goto error;
time = gst_segment_to_stream_time (&dec->segment, GST_FORMAT_TIME, time);
GST_LOG_OBJECT (dec,
"query %p: our time: %" GST_TIME_FORMAT, query, GST_TIME_ARGS (time));
if (!(res =
theora_dec_src_convert (pad, my_format, time, &format, &value)))
goto error;
gst_query_set_position (query, format, value);
GST_LOG_OBJECT (dec,
"query %p: we return %lld (format %u)", query, value, format);
break;
}
case GST_QUERY_DURATION:
{
GstPad *peer;
if (!(peer = gst_pad_get_peer (dec->sinkpad)))
goto error;
/* forward to peer for total */
res = gst_pad_query (peer, query);
gst_object_unref (peer);
if (!res)
goto error;
break;
}
case GST_QUERY_CONVERT:
{
GstFormat src_fmt, dest_fmt;
gint64 src_val, dest_val;
gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
if (!(res =
theora_dec_src_convert (pad, src_fmt, src_val, &dest_fmt,
&dest_val)))
goto error;
gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
done:
gst_object_unref (dec);
return res;
/* ERRORS */
error:
{
GST_DEBUG_OBJECT (dec, "query failed");
goto done;
}
}
gint
main (gint argc, gchar * argv[])
{
GstElement *pipeline, *filesrc, *decodebin;
GstStateChangeReturn res;
GstIterator *it;
GstBus *bus;
GValue data = { 0, };
gst_init (&argc, &argv);
pipeline = gst_pipeline_new ("pipeline");
filesrc = gst_element_factory_make ("filesrc", "filesrc");
g_assert (filesrc);
decodebin = gst_element_factory_make ("decodebin", "decodebin");
g_assert (decodebin);
gst_bin_add_many (GST_BIN (pipeline), filesrc, decodebin, NULL);
gst_element_link (filesrc, decodebin);
if (argc < 2) {
g_print ("usage: %s <filenames>\n", argv[0]);
exit (-1);
}
if (!g_str_has_prefix (argv[1], "file://")) {
g_object_set (G_OBJECT (filesrc), "location", argv[1], NULL);
} else {
g_object_set (G_OBJECT (filesrc), "location", argv[1] + 7, NULL);
}
/* we've got to connect fakesinks to newly decoded pads to make sure
* buffers have actually been flowing over those pads and caps have
* been set on them. decodebin might insert internal queues and
* without fakesinks it's pot-luck what caps we get from the pad, because
* it depends on whether the queues have started pushing buffers yet or not.
* With fakesinks we make sure that the pipeline doesn't go to PAUSED state
* before each fakesink has a buffer queued. */
g_signal_connect (decodebin, "new-decoded-pad",
G_CALLBACK (new_decoded_pad_cb), pipeline);
bus = gst_element_get_bus (pipeline);
g_print ("pause..\n");
res = gst_element_set_state (pipeline, GST_STATE_PAUSED);
if (res == GST_STATE_CHANGE_FAILURE) {
show_error ("Could not go to PAUSED state", bus);
exit (-1);
}
g_print ("waiting..\n");
res = gst_element_get_state (pipeline, NULL, NULL, GST_CLOCK_TIME_NONE);
if (res != GST_STATE_CHANGE_SUCCESS) {
show_error ("Failed to complete state change to PAUSED", bus);
exit (-1);
}
g_print ("stats..\n");
it = gst_element_iterate_src_pads (decodebin);
while (gst_iterator_next (it, &data) == GST_ITERATOR_OK) {
GstPad *pad = g_value_get_object (&data);
GstCaps *caps;
gchar *str;
GstQuery *query;
g_print ("stream %s:\n", GST_OBJECT_NAME (pad));
caps = gst_pad_query_caps (pad, NULL);
str = gst_caps_to_string (caps);
g_print (" caps: %s\n", str);
g_free (str);
gst_caps_unref (caps);
query = gst_query_new_duration (GST_FORMAT_TIME);
if (gst_pad_query (pad, query)) {
gint64 duration;
gst_query_parse_duration (query, NULL, &duration);
g_print (" duration: %" GST_TIME_FORMAT "\n", GST_TIME_ARGS (duration));
}
gst_query_unref (query);
g_value_reset (&data);
}
g_value_unset (&data);
gst_iterator_free (it);
return 0;
}
static gboolean
gst_deinterlace2_src_query (GstPad * pad, GstQuery * query)
{
GstDeinterlace2 *self = GST_DEINTERLACE2 (gst_pad_get_parent (pad));
gboolean res = FALSE;
GST_LOG_OBJECT (self, "%s query", GST_QUERY_TYPE_NAME (query));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:
{
GstClockTime min, max;
gboolean live;
GstPad *peer;
if ((peer = gst_pad_get_peer (self->sinkpad))) {
if ((res = gst_pad_query (peer, query))) {
GstClockTime latency;
gint fields_required = 0;
gint method_latency = 0;
if (self->method) {
fields_required =
gst_deinterlace_method_get_fields_required (self->method);
method_latency = gst_deinterlace_method_get_latency (self->method);
}
gst_query_parse_latency (query, &live, &min, &max);
GST_DEBUG ("Peer latency: min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min), GST_TIME_ARGS (max));
/* add our own latency */
latency = (fields_required + method_latency) * self->field_duration;
GST_DEBUG ("Our latency: min %" GST_TIME_FORMAT
", max %" GST_TIME_FORMAT,
GST_TIME_ARGS (latency), GST_TIME_ARGS (latency));
min += latency;
if (max != GST_CLOCK_TIME_NONE)
max += latency;
else
max = latency;
GST_DEBUG ("Calculated total latency : min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min), GST_TIME_ARGS (max));
gst_query_set_latency (query, live, min, max);
}
gst_object_unref (peer);
}
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (self);
return res;
}
gint
main (gint argc, gchar * argv[])
{
GstElement *pipeline;
GError *error = NULL;
gchar *description;
GstElement *encoder, *decoder;
GstPad *dec_sink, *enc_src;
gst_init (&argc, &argv);
if (argc < 3) {
g_print ("usage: %s <inputfile> <outputfile>\n", argv[0]);
return -1;
}
description = g_strdup_printf ("filesrc location=\"%s\" ! mad name=decoder ! "
"vorbisenc name=encoder ! filesink location=\"%s\"", argv[1], argv[2]);
pipeline = GST_ELEMENT (gst_parse_launch (description, &error));
if (!pipeline) {
if (error)
g_print ("ERROR: pipeline could not be constructed: %s\n",
error->message);
else
g_print ("ERROR: pipeline could not be constructed\n");
return -1;
}
decoder = gst_bin_get_by_name (GST_BIN (pipeline), "decoder");
encoder = gst_bin_get_by_name (GST_BIN (pipeline), "encoder");
dec_sink = gst_element_get_pad (decoder, "sink");
enc_src = gst_element_get_pad (encoder, "src");
if (gst_element_set_state (pipeline,
GST_STATE_PLAYING) != GST_STATE_CHANGE_SUCCESS) {
g_print ("pipeline doesn't want to play\n");
return -1;
}
while (gst_bin_iterate (GST_BIN (pipeline))) {
gint64 position;
gint64 duration;
gint64 bitrate_enc, bitrate_dec;
GstFormat format;
format = GST_FORMAT_TIME;
/* get the position */
gst_pad_query (enc_src, GST_QUERY_POSITION, &format, &position);
/* get the total duration */
gst_pad_query (enc_src, GST_QUERY_TOTAL, &format, &duration);
format = GST_FORMAT_BYTES;
/* see how many bytes are genereated per 8 seconds (== bitrate) */
gst_pad_convert (enc_src, GST_FORMAT_TIME, 8 * GST_SECOND,
&format, &bitrate_enc);
gst_pad_convert (dec_sink, GST_FORMAT_TIME, 8 * GST_SECOND,
&format, &bitrate_dec);
g_print ("[%2dm %.2ds] of [%2dm %.2ds], "
"src avg bitrate: %" G_GINT64_FORMAT ", dest avg birate: %"
G_GINT64_FORMAT ", ratio [%02.2f] \r",
(gint) (position / (GST_SECOND * 60)),
(gint) (position / (GST_SECOND)) % 60,
(gint) (duration / (GST_SECOND * 60)),
(gint) (duration / (GST_SECOND)) % 60, bitrate_dec, bitrate_enc,
(gfloat) bitrate_dec / bitrate_enc);
}
g_print ("\n");
return 0;
}
static gboolean
gst_base_video_codec_src_query (GstPad * pad, GstQuery * query)
{
GstBaseVideoCodec *base_codec;
gboolean res = FALSE;
base_codec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
{
GstFormat format;
gint64 time;
gint64 value;
gst_query_parse_position (query, &format, NULL);
time = gst_util_uint64_scale (base_codec->system_frame_number,
base_codec->state.fps_n, base_codec->state.fps_d);
time += base_codec->state.segment.time;
GST_DEBUG ("query position %" GST_TIME_FORMAT, GST_TIME_ARGS (time));
res = gst_base_video_encoded_video_convert (&base_codec->state,
GST_FORMAT_TIME, time, &format, &value);
if (!res)
goto error;
gst_query_set_position (query, format, value);
break;
}
case GST_QUERY_DURATION:
res = gst_pad_query (GST_PAD_PEER (base_codec->sinkpad), query);
if (!res)
goto error;
break;
case GST_QUERY_CONVERT:
{
GstFormat src_fmt, dest_fmt;
gint64 src_val, dest_val;
GST_DEBUG ("query convert");
gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
res = gst_base_video_encoded_video_convert (&base_codec->state,
src_fmt, src_val, &dest_fmt, &dest_val);
if (!res)
goto error;
gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
done:
gst_object_unref (base_codec);
return res;
error:
GST_DEBUG_OBJECT (base_codec, "query failed");
goto done;
}
static gboolean
gst_video_rate_query (GstPad * pad, GstQuery * query)
{
GstVideoRate *videorate;
gboolean res = FALSE;
videorate = GST_VIDEO_RATE (gst_pad_get_parent (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:
{
GstClockTime min, max;
gboolean live;
guint64 latency;
GstPad *peer;
if ((peer = gst_pad_get_peer (videorate->sinkpad))) {
if ((res = gst_pad_query (peer, query))) {
gst_query_parse_latency (query, &live, &min, &max);
GST_DEBUG_OBJECT (videorate, "Peer latency: min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min), GST_TIME_ARGS (max));
if (videorate->from_rate_numerator != 0) {
/* add latency. We don't really know since we hold on to the frames
* until we get a next frame, which can be anything. We assume
* however that this will take from_rate time. */
latency = gst_util_uint64_scale (GST_SECOND,
videorate->from_rate_denominator,
videorate->from_rate_numerator);
} else {
/* no input framerate, we don't know */
latency = 0;
}
GST_DEBUG_OBJECT (videorate, "Our latency: %"
GST_TIME_FORMAT, GST_TIME_ARGS (latency));
min += latency;
if (max != -1)
max += latency;
GST_DEBUG_OBJECT (videorate, "Calculated total latency : min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min), GST_TIME_ARGS (max));
gst_query_set_latency (query, live, min, max);
}
gst_object_unref (peer);
}
break;
}
default:
res = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (videorate);
return res;
}
