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adaptivedemux2: Handle early SEEKING query

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No pads are present yet, but we can still answer the query

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4922>
This commit is contained in:
Edward Hervey 2023-02-10 15:26:20 +01:00 committed by Edward Hervey
parent 3cbfe5a481
commit 8e4bfd896b
1 changed files with 88 additions and 74 deletions
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162
subprojects/gst-plugins-good/ext/adaptivedemux2/gstadaptivedemux.c
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@ -1388,38 +1388,6 @@ gst_adaptive_demux_reset (GstAdaptiveDemux * demux)
gst_flow_combiner_reset (demux->priv->flowcombiner);
}
static gboolean
gst_adaptive_demux_query (GstElement * element, GstQuery * query)
{
GstAdaptiveDemux *demux = GST_ADAPTIVE_DEMUX_CAST (element);
GST_LOG_OBJECT (demux, "%" GST_PTR_FORMAT, query);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_BUFFERING:
{
GstFormat format;
gst_query_parse_buffering_range (query, &format, NULL, NULL, NULL);
if (!demux->output_period) {
if (format != GST_FORMAT_TIME) {
GST_DEBUG_OBJECT (demux,
"No period setup yet, can't answer non-TIME buffering queries");
return FALSE;
}
GST_DEBUG_OBJECT (demux,
"No period setup yet, but still answering buffering query");
return TRUE;
}
}
default:
break;
}
return GST_ELEMENT_CLASS (parent_class)->query (element, query);
}
static gboolean
gst_adaptive_demux_send_event (GstElement * element, GstEvent * event)
{
@ -2557,6 +2525,54 @@ gst_adaptive_demux_src_event (GstPad * pad, GstObject * parent,
return gst_pad_event_default (pad, parent, event);
}
static gboolean
gst_adaptive_demux_handle_query_seeking (GstAdaptiveDemux * demux,
GstQuery * query)
{
GstFormat fmt = GST_FORMAT_UNDEFINED;
gint64 stop = -1;
gint64 start = 0;
gboolean ret = FALSE;
if (!g_atomic_int_get (&demux->priv->have_manifest)) {
GST_INFO_OBJECT (demux,
"Don't have manifest yet, can't answer seeking query");
return FALSE; /* can't answer without manifest */
}
GST_MANIFEST_LOCK (demux);
gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL);
GST_INFO_OBJECT (demux, "Received GST_QUERY_SEEKING with format %d", fmt);
if (fmt == GST_FORMAT_TIME) {
GstClockTime duration;
gboolean can_seek = gst_adaptive_demux_can_seek (demux);
ret = TRUE;
if (can_seek) {
if (gst_adaptive_demux_is_live (demux)) {
ret = gst_adaptive_demux_get_live_seek_range (demux, &start, &stop);
if (!ret) {
GST_MANIFEST_UNLOCK (demux);
GST_INFO_OBJECT (demux, "can't answer seeking query");
return FALSE;
}
} else {
duration = demux->priv->duration;
if (GST_CLOCK_TIME_IS_VALID (duration) && duration > 0)
stop = duration;
}
}
gst_query_set_seeking (query, fmt, can_seek, start, stop);
GST_INFO_OBJECT (demux, "GST_QUERY_SEEKING returning with start : %"
GST_TIME_FORMAT ", stop : %" GST_TIME_FORMAT,
GST_TIME_ARGS (start), GST_TIME_ARGS (stop));
}
GST_MANIFEST_UNLOCK (demux);
return ret;
}
static gboolean
gst_adaptive_demux_src_query (GstPad * pad, GstObject * parent,
GstQuery * query)
@ -2567,7 +2583,6 @@ gst_adaptive_demux_src_query (GstPad * pad, GstObject * parent,
if (query == NULL)
return FALSE;
switch (query->type) {
case GST_QUERY_DURATION:{
GstFormat fmt;
@ -2604,48 +2619,9 @@ gst_adaptive_demux_src_query (GstPad * pad, GstObject * parent,
ret = TRUE;
break;
}
case GST_QUERY_SEEKING:{
GstFormat fmt;
gint64 stop = -1;
gint64 start = 0;
if (!g_atomic_int_get (&demux->priv->have_manifest)) {
GST_INFO_OBJECT (demux,
"Don't have manifest yet, can't answer seeking query");
return FALSE; /* can't answer without manifest */
}
GST_MANIFEST_LOCK (demux);
gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL);
GST_INFO_OBJECT (demux, "Received GST_QUERY_SEEKING with format %d", fmt);
if (fmt == GST_FORMAT_TIME) {
GstClockTime duration;
gboolean can_seek = gst_adaptive_demux_can_seek (demux);
ret = TRUE;
if (can_seek) {
if (gst_adaptive_demux_is_live (demux)) {
ret = gst_adaptive_demux_get_live_seek_range (demux, &start, &stop);
if (!ret) {
GST_MANIFEST_UNLOCK (demux);
GST_INFO_OBJECT (demux, "can't answer seeking query");
return FALSE;
}
} else {
duration = demux->priv->duration;
if (GST_CLOCK_TIME_IS_VALID (duration) && duration > 0)
stop = duration;
}
}
gst_query_set_seeking (query, fmt, can_seek, start, stop);
GST_INFO_OBJECT (demux, "GST_QUERY_SEEKING returning with start : %"
GST_TIME_FORMAT ", stop : %" GST_TIME_FORMAT,
GST_TIME_ARGS (start), GST_TIME_ARGS (stop));
}
GST_MANIFEST_UNLOCK (demux);
case GST_QUERY_SEEKING:
ret = gst_adaptive_demux_handle_query_seeking (demux, query);
break;
}
case GST_QUERY_URI:
GST_MANIFEST_LOCK (demux);
@ -2675,6 +2651,44 @@ gst_adaptive_demux_src_query (GstPad * pad, GstObject * parent,
return ret;
}
static gboolean
gst_adaptive_demux_query (GstElement * element, GstQuery * query)
{
GstAdaptiveDemux *demux = GST_ADAPTIVE_DEMUX_CAST (element);
GST_LOG_OBJECT (demux, "%" GST_PTR_FORMAT, query);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_BUFFERING:
{
GstFormat format;
gst_query_parse_buffering_range (query, &format, NULL, NULL, NULL);
if (!demux->output_period) {
if (format != GST_FORMAT_TIME) {
GST_DEBUG_OBJECT (demux,
"No period setup yet, can't answer non-TIME buffering queries");
return FALSE;
}
GST_DEBUG_OBJECT (demux,
"No period setup yet, but still answering buffering query");
return TRUE;
}
}
case GST_QUERY_SEEKING:
{
/* Source pads might not be present early on which would cause the default
* element query handler to fail, yet we can answer this query */
return gst_adaptive_demux_handle_query_seeking (demux, query);
}
default:
break;
}
return GST_ELEMENT_CLASS (parent_class)->query (element, query);
}
gboolean
gst_adaptive_demux_handle_lost_sync (GstAdaptiveDemux * demux)
{