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Some radio streams uses StreamTitle='' to reset the title after a track stopped playing, e.g. while the host talks between tracks or during news segments. This change forces an empty tag object to be distributed if StreamTitle or StreamUrl is received with empty value, thus allowing downstream elements to get notified about this. https://bugzilla.gnome.org/show_bug.cgi?id=778437
378 lines
9.9 KiB
C
378 lines
9.9 KiB
C
/*
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* icydemux.c - Test icydemux element
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* Copyright (C) 2006 Michael Smith <msmith@fluendo.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/check/gstcheck.h>
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/* Chunk of data: 8 bytes, followed by a metadata-length byte of 2, followed by
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* some metadata (32 bytes), then some more data.
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*/
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#define TEST_METADATA \
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"Test metadata"
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#define ICY_METADATA \
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"StreamTitle='" TEST_METADATA "';\0\0\0\0"
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#define EMPTY_ICY_STREAM_TITLE_METADATA \
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"StreamTitle='';\0"
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#define ICY_DATA \
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"aaaaaaaa" \
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"\x02" \
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ICY_METADATA \
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"bbbbbbbb"
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#define ICY_DATA_EMPTY_METADATA \
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ICY_DATA \
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"\x00" \
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"dddddddd" \
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"\x01" \
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EMPTY_ICY_STREAM_TITLE_METADATA \
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"cccccccc"
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#define ICYCAPS "application/x-icy, metadata-interval = (int)8"
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#define SRC_CAPS "application/x-icy, metadata-interval = (int)[0, MAX]"
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#define SINK_CAPS "ANY"
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static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (SRC_CAPS)
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);
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static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (SINK_CAPS)
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);
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static GstElement *icydemux;
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static GstBus *bus;
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GstPad *srcpad, *sinkpad;
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static GstStaticCaps typefind_caps =
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GST_STATIC_CAPS ("application/octet-stream");
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static gboolean fake_typefind_caps; /* FALSE */
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static void
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typefind_succeed (GstTypeFind * tf, gpointer private)
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{
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if (fake_typefind_caps) {
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gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM,
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gst_static_caps_get (&typefind_caps));
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}
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}
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static gboolean
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test_event_func (GstPad * pad, GstObject * parent, GstEvent * event)
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{
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GST_LOG_OBJECT (pad, "%s event: %" GST_PTR_FORMAT,
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GST_EVENT_TYPE_NAME (event), event);
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/* a sink would post tag events as messages, so do the same here,
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* esp. since we're polling on the bus waiting for TAG messages.. */
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if (GST_EVENT_TYPE (event) == GST_EVENT_TAG) {
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GstTagList *taglist;
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gst_event_parse_tag (event, &taglist);
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gst_bus_post (bus, gst_message_new_tag (GST_OBJECT (pad),
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gst_tag_list_copy (taglist)));
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}
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gst_event_unref (event);
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return TRUE;
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}
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static void
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icydemux_found_pad (GstElement * src, GstPad * pad, gpointer data)
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{
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GST_DEBUG ("got new pad %" GST_PTR_FORMAT, pad);
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/* Turns out that this asserts a refcount which is wrong for this
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* case (adding the pad from a pad-added callback), so just do the same
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* thing inline... */
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/* sinkpad = gst_check_setup_sink_pad (icydemux, &sinktemplate, NULL); */
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sinkpad = gst_pad_new_from_static_template (&sinktemplate, "sink");
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fail_if (sinkpad == NULL, "Couldn't create sinkpad");
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srcpad = gst_element_get_static_pad (icydemux, "src");
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fail_if (srcpad == NULL, "Failed to get srcpad from icydemux");
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gst_pad_set_chain_function (sinkpad, gst_check_chain_func);
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gst_pad_set_event_function (sinkpad, test_event_func);
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GST_DEBUG ("checking srcpad %p refcount", srcpad);
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/* 1 from element, 1 from signal, 1 from us */
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ASSERT_OBJECT_REFCOUNT (srcpad, "srcpad", 3);
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GST_DEBUG ("linking srcpad");
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fail_unless (gst_pad_link (srcpad, sinkpad) == GST_PAD_LINK_OK,
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"Failed to link pads");
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gst_object_unref (srcpad);
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gst_pad_set_active (sinkpad, TRUE);
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}
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static GstElement *
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create_icydemux (void)
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{
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icydemux = gst_check_setup_element ("icydemux");
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srcpad = gst_check_setup_src_pad (icydemux, &srctemplate);
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gst_pad_set_active (srcpad, TRUE);
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g_signal_connect (icydemux, "pad-added", G_CALLBACK (icydemux_found_pad),
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NULL);
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bus = gst_bus_new ();
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gst_element_set_bus (icydemux, bus);
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fail_unless (gst_element_set_state (icydemux, GST_STATE_PLAYING) !=
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GST_STATE_CHANGE_FAILURE, "could not set to playing");
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return icydemux;
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}
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static void
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cleanup_icydemux (void)
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{
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gst_bus_set_flushing (bus, TRUE);
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gst_object_unref (bus);
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bus = NULL;
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gst_check_drop_buffers ();
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gst_check_teardown_src_pad (icydemux);
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if (sinkpad)
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gst_check_teardown_sink_pad (icydemux);
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gst_check_teardown_element (icydemux);
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srcpad = NULL;
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sinkpad = NULL;
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icydemux = NULL;
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}
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static void
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push_data (const guint8 * data, int len, gint64 offset)
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{
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GstFlowReturn res;
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GstBuffer *buffer = gst_buffer_new_and_alloc (len);
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gst_buffer_fill (buffer, 0, data, len);
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GST_BUFFER_OFFSET (buffer) = offset;
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res = gst_pad_push (srcpad, buffer);
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fail_unless (res == GST_FLOW_OK, "Failed pushing buffer: %d", res);
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}
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GST_START_TEST (test_demux)
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{
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GstMessage *message;
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GstTagList *tags;
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const GValue *tag_val;
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const gchar *tag;
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GstCaps *caps;
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fail_unless (gst_type_find_register (NULL, "success", GST_RANK_PRIMARY,
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typefind_succeed, NULL, gst_static_caps_get (&typefind_caps), NULL,
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NULL));
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fake_typefind_caps = TRUE;
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caps = gst_caps_from_string (ICYCAPS);
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create_icydemux ();
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gst_check_setup_events (srcpad, icydemux, caps, GST_FORMAT_TIME);
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push_data ((guint8 *) ICY_DATA, sizeof (ICY_DATA), -1);
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message = gst_bus_poll (bus, GST_MESSAGE_TAG, -1);
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fail_unless (message != NULL);
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gst_message_parse_tag (message, &tags);
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fail_unless (tags != NULL);
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tag_val = gst_tag_list_get_value_index (tags, GST_TAG_TITLE, 0);
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fail_unless (tag_val != NULL);
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tag = g_value_get_string (tag_val);
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fail_unless (tag != NULL);
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fail_unless_equals_string (TEST_METADATA, (char *) tag);
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gst_tag_list_unref (tags);
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gst_message_unref (message);
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gst_caps_unref (caps);
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cleanup_icydemux ();
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fake_typefind_caps = FALSE;
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}
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GST_END_TEST;
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GST_START_TEST (test_demux_empty_data)
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{
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GstMessage *message;
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GstTagList *tags;
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const GValue *tag_val;
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const gchar *tag;
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GstCaps *caps;
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fail_unless (gst_type_find_register (NULL, "success", GST_RANK_PRIMARY,
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typefind_succeed, NULL, gst_static_caps_get (&typefind_caps), NULL,
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NULL));
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fake_typefind_caps = TRUE;
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caps = gst_caps_from_string (ICYCAPS);
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create_icydemux ();
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gst_check_setup_events (srcpad, icydemux, caps, GST_FORMAT_TIME);
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push_data ((guint8 *) ICY_DATA_EMPTY_METADATA,
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sizeof (ICY_DATA_EMPTY_METADATA), -1);
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message = gst_bus_poll (bus, GST_MESSAGE_TAG, -1);
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fail_unless (message != NULL);
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gst_message_parse_tag (message, &tags);
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fail_unless (tags != NULL);
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tag_val = gst_tag_list_get_value_index (tags, GST_TAG_TITLE, 0);
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fail_unless (tag_val != NULL);
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tag = g_value_get_string (tag_val);
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fail_unless (tag != NULL);
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fail_unless_equals_string (TEST_METADATA, (char *) tag);
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gst_tag_list_unref (tags);
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gst_message_unref (message);
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message = gst_bus_poll (bus, GST_MESSAGE_TAG, -1);
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fail_unless (message != NULL);
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gst_message_parse_tag (message, &tags);
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fail_unless (tags != NULL);
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tag_val = gst_tag_list_get_value_index (tags, GST_TAG_TITLE, 0);
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fail_unless (tag_val == NULL);
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gst_message_unref (message);
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/* Ensure that no further tag messages are received, i.e. the empty ICY tag
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* is skipped */
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message = gst_bus_poll (bus, GST_MESSAGE_TAG, 100000000);
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fail_unless (message == NULL);
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gst_tag_list_unref (tags);
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gst_caps_unref (caps);
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cleanup_icydemux ();
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fake_typefind_caps = FALSE;
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}
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GST_END_TEST;
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/* run this test first before the custom typefind function is set up */
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GST_START_TEST (test_first_buf_offset_when_merged_for_typefinding)
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{
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const guint8 buf1[] = { 'M' };
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const guint8 buf2[] = { 'P', '+', 0xff, 0xfb, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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GstCaps *icy_caps;
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GstPad *icy_srcpad;
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fake_typefind_caps = FALSE;
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create_icydemux ();
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icy_caps = gst_caps_from_string (ICYCAPS);
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gst_check_setup_events (srcpad, icydemux, icy_caps, GST_FORMAT_TIME);
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push_data (buf1, G_N_ELEMENTS (buf1), 0);
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/* one byte isn't really enough for typefinding, can't have a srcpad yet */
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fail_unless (gst_element_get_static_pad (icydemux, "src") == NULL);
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push_data (buf2, G_N_ELEMENTS (buf2), -1);
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/* should have been enough to create a audio/x-musepack source pad .. */
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icy_srcpad = gst_element_get_static_pad (icydemux, "src");
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fail_unless (icy_srcpad != NULL);
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gst_object_unref (icy_srcpad);
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fail_unless (g_list_length (buffers) > 0);
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/* first buffer should have offset 0 even after it was merged with 2nd buf */
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fail_unless (GST_BUFFER_OFFSET (GST_BUFFER_CAST (buffers->data)) == 0);
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gst_caps_unref (icy_caps);
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cleanup_icydemux ();
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}
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GST_END_TEST;
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GST_START_TEST (test_not_negotiated)
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{
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GstBuffer *buf;
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GstSegment segment;
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create_icydemux ();
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gst_segment_init (&segment, GST_FORMAT_BYTES);
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gst_pad_push_event (srcpad, gst_event_new_stream_start ("test"));
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gst_pad_push_event (srcpad, gst_event_new_segment (&segment));
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buf = gst_buffer_new_and_alloc (0);
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GST_BUFFER_OFFSET (buf) = 0;
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fail_unless_equals_int (gst_pad_push (srcpad, buf), GST_FLOW_NOT_NEGOTIATED);
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buf = NULL;
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cleanup_icydemux ();
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}
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GST_END_TEST;
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static Suite *
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icydemux_suite (void)
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{
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Suite *s = suite_create ("icydemux");
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TCase *tc_chain = tcase_create ("general");
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suite_add_tcase (s, tc_chain);
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tcase_add_test (tc_chain, test_demux);
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tcase_add_test (tc_chain, test_demux_empty_data);
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tcase_add_test (tc_chain, test_first_buf_offset_when_merged_for_typefinding);
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tcase_add_test (tc_chain, test_not_negotiated);
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return s;
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}
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GST_CHECK_MAIN (icydemux)
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