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alphadecodebin: Use normal queues instead of multiqueue

Browse source 
The multiqueue was too flexible for our need, allowing to queue passed
the configured threshold. It also didn't work well when trying to
propagate EOS flow return.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2238>
This commit is contained in:
Nicolas Dufresne 2021-05-12 17:32:20 -04:00 committed by GStreamer Marge Bot
parent 1229257ad4
commit c63b2f2712
1 changed files with 18 additions and 28 deletions
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46
gst/codecalpha/gstalphadecodebin.c
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@ -97,7 +97,8 @@ gst_alpha_decode_bin_constructed (GObject * obj)
GstPad *src_gpad, *sink_gpad;
GstPad *src_pad = NULL, *sink_pad = NULL;
GstElement *alphademux = NULL;
GstElement *multiqueue = NULL;
GstElement *queue = NULL;
GstElement *alpha_queue = NULL;
GstElement *decoder = NULL;
GstElement *alpha_decoder = NULL;
GstElement *alphacombine = NULL;
@ -118,19 +119,20 @@ gst_alpha_decode_bin_constructed (GObject * obj)
goto cleanup;
}
multiqueue = gst_element_factory_make ("multiqueue", NULL);
if (!multiqueue) {
priv->missing_element = "multiqueue";
queue = gst_element_factory_make ("queue", NULL);
alpha_queue = gst_element_factory_make ("queue", NULL);
if (!queue || !alpha_queue) {
priv->missing_element = "queue";
goto cleanup;
}
decoder = gst_element_factory_make (klass->decoder_name, NULL);
decoder = gst_element_factory_make (klass->decoder_name, "maindec");
if (!decoder) {
priv->missing_element = klass->decoder_name;
goto cleanup;
}
alpha_decoder = gst_element_factory_make (klass->decoder_name, NULL);
alpha_decoder = gst_element_factory_make (klass->decoder_name, "alphadec");
if (!alpha_decoder) {
priv->missing_element = klass->decoder_name;
goto cleanup;
@ -142,7 +144,7 @@ gst_alpha_decode_bin_constructed (GObject * obj)
goto cleanup;
}
gst_bin_add_many (GST_BIN (self), alphademux, multiqueue, decoder,
gst_bin_add_many (GST_BIN (self), alphademux, queue, alpha_queue, decoder,
alpha_decoder, alphacombine, NULL);
/* link elements */
@ -150,34 +152,21 @@ gst_alpha_decode_bin_constructed (GObject * obj)
gst_ghost_pad_set_target (GST_GHOST_PAD (sink_gpad), sink_pad);
gst_clear_object (&sink_pad);
sink_pad = gst_element_request_pad_simple (multiqueue, "sink_0");
src_pad = gst_element_get_static_pad (multiqueue, "src_0");
g_object_set (sink_pad, "group_id", 0, NULL);
g_object_set (src_pad, "group_id", 0, NULL);
gst_clear_object (&sink_pad);
gst_clear_object (&src_pad);
gst_element_link_pads (alphademux, "src", multiqueue, "sink_0");
gst_element_link_pads (multiqueue, "src_0", decoder, "sink");
gst_element_link_pads (alphademux, "src", queue, "sink");
gst_element_link_pads (queue, "src", decoder, "sink");
gst_element_link_pads (decoder, "src", alphacombine, "sink");
sink_pad = gst_element_request_pad_simple (multiqueue, "sink_1");
src_pad = gst_element_get_static_pad (multiqueue, "src_1");
g_object_set (sink_pad, "group_id", 1, NULL);
g_object_set (src_pad, "group_id", 1, NULL);
gst_clear_object (&sink_pad);
gst_clear_object (&src_pad);
gst_element_link_pads (alphademux, "alpha", multiqueue, "sink_1");
gst_element_link_pads (multiqueue, "src_1", alpha_decoder, "sink");
gst_element_link_pads (alphademux, "alpha", alpha_queue, "sink");
gst_element_link_pads (alpha_queue, "src", alpha_decoder, "sink");
gst_element_link_pads (alpha_decoder, "src", alphacombine, "alpha");
src_pad = gst_element_get_static_pad (alphacombine, "src");
gst_ghost_pad_set_target (GST_GHOST_PAD (src_gpad), src_pad);
gst_object_unref (src_pad);
gst_element_link_pads (alphademux, "alpha", multiqueue, "sink_0");
/* configure the elements */
g_object_set (multiqueue, "max-size-bytes", 0, "max-size-time", 0,
g_object_set (queue, "max-size-bytes", 0, "max-size-time", 0,
"max-size-buffers", 1, NULL);
g_object_set (alpha_queue, "max-size-bytes", 0, "max-size-time", 0,
"max-size-buffers", 1, NULL);
/* signal success, we will handle this in NULL->READY transition */
@ -186,7 +175,8 @@ gst_alpha_decode_bin_constructed (GObject * obj)
cleanup:
gst_clear_object (&alphademux);
gst_clear_object (&multiqueue);
gst_clear_object (&queue);
gst_clear_object (&alpha_queue);
gst_clear_object (&decoder);
gst_clear_object (&alpha_decoder);
gst_clear_object (&alphacombine);