| /* GStreamer |
| * |
| * unit testing helper lib |
| * |
| * Copyright (C) 2009 Edward Hervey <bilboed@bilboed.com> |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public |
| * License along with this library; if not, write to the |
| * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| * Boston, MA 02111-1307, USA. |
| */ |
| |
| /** |
| * SECTION:gstcheckconsistencychecker |
| * @short_description: Data flow consistency checker for GStreamer unit tests. |
| * |
| * These macros and functions are for internal use of the unit tests found |
| * inside the 'check' directories of various GStreamer packages. |
| * |
| * Since: 0.10.24 |
| */ |
| |
| #include "gstconsistencychecker.h" |
| |
| struct _GstStreamConsistency |
| { |
| gboolean flushing; |
| gboolean segment; |
| gboolean eos; |
| gulong probeid; |
| GstPad *pad; |
| }; |
| |
| static gboolean |
| source_pad_data_cb (GstPad * pad, GstProbeType type, GstMiniObject * data, |
| GstStreamConsistency * consist) |
| { |
| if (GST_IS_BUFFER (data)) { |
| GST_DEBUG_OBJECT (pad, "Buffer %" GST_TIME_FORMAT, |
| GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (GST_BUFFER (data)))); |
| /* If an EOS went through, a buffer would be invalid */ |
| fail_if (consist->eos, "Buffer received after EOS"); |
| /* Buffers need to be preceded by a segment event */ |
| fail_unless (consist->segment, "Buffer received without segment"); |
| } else if (GST_IS_EVENT (data)) { |
| GstEvent *event = (GstEvent *) data; |
| |
| GST_DEBUG_OBJECT (pad, "%s", GST_EVENT_TYPE_NAME (event)); |
| switch (GST_EVENT_TYPE (event)) { |
| case GST_EVENT_FLUSH_START: |
| consist->flushing = TRUE; |
| break; |
| case GST_EVENT_FLUSH_STOP: |
| /* Receiving a flush-stop is only valid after receiving a flush-start */ |
| fail_unless (consist->flushing, |
| "Received a FLUSH_STOP without a FLUSH_START"); |
| fail_if (consist->eos, "Received a FLUSH_STOP after an EOS"); |
| consist->flushing = FALSE; |
| break; |
| case GST_EVENT_SEGMENT: |
| consist->segment = TRUE; |
| consist->eos = FALSE; |
| break; |
| case GST_EVENT_EOS: |
| /* FIXME : not 100% sure about whether two eos in a row is valid */ |
| fail_if (consist->eos, "Received EOS just after another EOS"); |
| consist->eos = TRUE; |
| consist->segment = FALSE; |
| break; |
| case GST_EVENT_TAG: |
| GST_DEBUG_OBJECT (pad, "tag %" GST_PTR_FORMAT, |
| gst_event_get_structure (event)); |
| /* fall through */ |
| default: |
| if (GST_EVENT_IS_SERIALIZED (event) && GST_EVENT_IS_DOWNSTREAM (event)) { |
| fail_if (consist->eos, "Event received after EOS"); |
| fail_unless (consist->segment, "Event received before segment"); |
| } |
| /* FIXME : Figure out what to do for other events */ |
| break; |
| } |
| } |
| |
| return TRUE; |
| } |
| |
| /** |
| * gst_consistency_checker_new: |
| * @pad: The #GstPad on which the dataflow will be checked. |
| * |
| * Sets up a data probe on the given pad which will raise assertions if the |
| * data flow is inconsistent. |
| * |
| * Currently only works for source pads. |
| * |
| * Returns: A #GstStreamConsistency structure used to track data flow. |
| * |
| * Since: 0.10.24 |
| */ |
| |
| GstStreamConsistency * |
| gst_consistency_checker_new (GstPad * pad) |
| { |
| GstStreamConsistency *consist; |
| |
| g_return_val_if_fail (pad != NULL, NULL); |
| |
| consist = g_new0 (GstStreamConsistency, 1); |
| consist->pad = g_object_ref (pad); |
| consist->probeid = |
| gst_pad_add_probe (pad, GST_PROBE_TYPE_DATA, |
| (GstPadProbeCallback) source_pad_data_cb, consist, NULL); |
| |
| return consist; |
| } |
| |
| /** |
| * gst_consistency_checker_reset: |
| * @consist: The #GstStreamConsistency to reset. |
| * |
| * Reset the stream checker's internal variables. |
| * |
| * Since: 0.10.24 |
| */ |
| |
| void |
| gst_consistency_checker_reset (GstStreamConsistency * consist) |
| { |
| consist->eos = FALSE; |
| consist->flushing = FALSE; |
| consist->segment = FALSE; |
| } |
| |
| /** |
| * gst_consistency_checker_free: |
| * @consist: The #GstStreamConsistency to free. |
| * |
| * Frees the allocated data and probe associated with @consist. |
| * |
| * Since: 0.10.24 |
| */ |
| |
| void |
| gst_consistency_checker_free (GstStreamConsistency * consist) |
| { |
| /* Remove the data probe */ |
| gst_pad_remove_probe (consist->pad, consist->probeid); |
| g_object_unref (consist->pad); |
| g_free (consist); |
| } |