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202 lines
7.5 KiB
C
202 lines
7.5 KiB
C
/* A generic test engine for elements based upon GstAdaptiveDemux
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*
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* Copyright (c) <2015> YouView TV Ltd
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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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#ifndef __GST_ADAPTIVE_DEMUX_TEST_ENGINE_H__
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#define __GST_ADAPTIVE_DEMUX_TEST_ENGINE_H__
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#include <gst/gst.h>
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#include <gst/app/gstappsink.h>
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#include "test_http_src.h"
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G_BEGIN_DECLS
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typedef struct _GstAdaptiveDemuxTestEngine GstAdaptiveDemuxTestEngine;
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typedef struct _GstAdaptiveDemuxTestOutputStream {
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gchar *name;
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/* the GstAppSink element getting the data for this stream */
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GstAppSink *appsink;
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GstPad *pad;
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/* the internal pad of adaptivedemux element used to send data to the GstAppSink element */
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GstPad *internal_pad;
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gulong internal_pad_probe;
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/* current segment start offset */
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guint64 segment_start;
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/* the size received so far on this segment */
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guint64 segment_received_size;
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/* the total size received so far on this stream, excluding current segment */
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guint64 total_received_size;
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} GstAdaptiveDemuxTestOutputStream;
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/* GstAdaptiveDemuxTestCallbacks: contains various callbacks that can
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* be registered by a test. Not all callbacks needs to be configured
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* by a test. A callback that is not required by a test must be set
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* to NULL.
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*/
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typedef struct _GstAdaptiveDemuxTestCallbacks
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{
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/**
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* pre_test: called before starting the pipeline
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* @engine: #GstAdaptiveDemuxTestEngine
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* @user_data: the user_data passed to gst_adaptive_demux_test_run()
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*/
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void (*pre_test) (GstAdaptiveDemuxTestEngine *engine, gpointer user_data);
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/**
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* post_test: called after stopping the pipeline.
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* @engine: #GstAdaptiveDemuxTestEngine
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* @user_data: the user_data passed to gst_adaptive_demux_test_run()
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*/
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void (*post_test) (GstAdaptiveDemuxTestEngine *engine, gpointer user_data);
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/**
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* appsink_received_data: called each time AppSink receives data
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* @engine: #GstAdaptiveDemuxTestEngine
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* @stream: #GstAdaptiveDemuxTestOutputStream
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* @buffer: the #GstBuffer that was recevied by #GstAppSink
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* @user_data: the user_data passed to gst_adaptive_demux_test_run()
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* Returns: %TRUE to continue processing, %FALSE to cause EOS
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*
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* Can be used by a test to perform additional operations (eg validate
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* output data)
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*/
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gboolean (*appsink_received_data) (GstAdaptiveDemuxTestEngine *engine,
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GstAdaptiveDemuxTestOutputStream * stream,
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GstBuffer * buffer, gpointer user_data);
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/**
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* appsink_eos: called each time AppSink receives eos
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* @engine: #GstAdaptiveDemuxTestEngine
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* @stream: #GstAdaptiveDemuxTestOutputStream
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* @user_data: the user_data passed to gst_adaptive_demux_test_run()
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*
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* Can be used by a test to perform additional operations (eg validate
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* output data)
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*/
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void (*appsink_eos) (GstAdaptiveDemuxTestEngine *engine,
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GstAdaptiveDemuxTestOutputStream * stream, gpointer user_data);
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/**
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* appsink_event: called when an event is received by appsink
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* @engine: #GstAdaptiveDemuxTestEngine
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* @stream: #GstAdaptiveDemuxTestOutputStream
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* @event: the #GstEvent that was pushed in the demuxer pad
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* @user_data: the user_data passed to gst_adaptive_demux_test_run()
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*
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* Can be used by a test to do some checks on the events
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*/
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void (*appsink_event) (GstAdaptiveDemuxTestEngine *engine,
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GstAdaptiveDemuxTestOutputStream * stream,
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GstEvent * event, gpointer user_data);
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/**
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* demux_pad_added: called each time the demux creates a new pad
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* @engine: #GstAdaptiveDemuxTestEngine
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* @stream: the #GstAdaptiveDemuxTestOutputStream that has been created
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* @user_data: the user_data passed to gst_adaptive_demux_test_run()
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*/
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void (*demux_pad_added) (GstAdaptiveDemuxTestEngine * engine,
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GstAdaptiveDemuxTestOutputStream * stream, gpointer user_data);
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/**
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* demux_pad_removed: called each time the demux removes a pad
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* @engine: #GstAdaptiveDemuxTestEngine
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* @stream: the #GstAdaptiveDemuxTestOutputStream that will no longer
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* be used
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* @user_data: the user_data passed to gst_adaptive_demux_test_run()
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*/
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void (*demux_pad_removed) (GstAdaptiveDemuxTestEngine * engine,
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GstAdaptiveDemuxTestOutputStream * stream, gpointer user_data);
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/**
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* demux_sent_data: called each time the demux sends data to AppSink
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* @engine: #GstAdaptiveDemuxTestEngine
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* @stream: #GstAdaptiveDemuxTestOutputStream
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* @buffer: the #GstBuffer that was sent by demux
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* @user_data: the user_data passed to gst_adaptive_demux_test_run()
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*/
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gboolean (*demux_sent_data) (GstAdaptiveDemuxTestEngine *engine,
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GstAdaptiveDemuxTestOutputStream * stream,
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GstBuffer * buffer, gpointer user_data);
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/**
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* demux_sent_event: called each time the demux sends event to AppSink
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* @engine: #GstAdaptiveDemuxTestEngine
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* @stream: #GstAdaptiveDemuxTestOutputStream
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* @event: the #GstEvent that was sent by demux
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* @user_data: the user_data passed to gst_adaptive_demux_test_run()
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*/
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gboolean (*demux_sent_event) (GstAdaptiveDemuxTestEngine *engine,
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GstAdaptiveDemuxTestOutputStream * stream,
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GstEvent * event, gpointer user_data);
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/**
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* bus_error_message: called if an error is posted to the bus
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* @engine: #GstAdaptiveDemuxTestEngine
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* @msg: the #GstMessage that contains the error
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* @user_data: the user_data passed to gst_adaptive_demux_test_run()
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*
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* The callback can decide if this error is expected, or to fail
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* the test
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*/
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void (*bus_error_message)(GstAdaptiveDemuxTestEngine *engine,
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GstMessage * msg, gpointer user_data);
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} GstAdaptiveDemuxTestCallbacks;
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/* structure containing all data used by a test
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* Any callback defined by a test will receive this as first parameter
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*/
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struct _GstAdaptiveDemuxTestEngine
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{
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GstElement *pipeline;
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GstClock *clock;
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GstElement *demux;
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GstElement *manifest_source;
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GMainLoop *loop;
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GPtrArray *output_streams; /* GPtrArray<GstAdaptiveDemuxTestOutputStream> */
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/* mutex to lock accesses to this structure when data is shared
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* between threads */
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GMutex lock;
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};
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/**
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* gst_adaptive_demux_test_run:
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* @element_name: The name of the demux element (e.g. "dashdemux")
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* @manifest_uri: The URI of the manifest to load
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* @callbacks: The callbacks to use while the test is in operating
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* @user_data: Opaque pointer that is passed to every callback
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*
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* Creates a pipeline with the specified demux element in it,
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* connect a testhttpsrc element to this demux element and
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* request manifest_uri. When the demux element adds a new
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* pad, the engine will create an AppSink element and attach
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* it to this pad.
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*
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* Information about these pads is collected in
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* GstAdaptiveDemuxTestEngine::output_streams
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*/
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void gst_adaptive_demux_test_run (const gchar * element_name,
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const gchar * manifest_uri,
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const GstAdaptiveDemuxTestCallbacks * callbacks,
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gpointer user_data);
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G_END_DECLS
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#endif /* __GST_ADAPTIVE_DEMUX_TEST_ENGINE_H__ */
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