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331 lines
9.6 KiB
C
331 lines
9.6 KiB
C
/*
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* GStreamer
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*
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* unit test for mpegvideoparse
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*
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* Copyright (C) 2011 Nokia Corporation. All rights reserved.
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* Contact: Stefan Kost <stefan.kost@nokia.com>
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* Copyright (C) 2018 Tim-Philipp Müller <tim centricular 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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#include <gst/check/check.h>
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#include <gst/video/video.h>
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#include "parser.h"
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#define SRC_CAPS_TMPL "video/mpeg, mpegversion=(int)2, systemstream=(boolean)false, parsed=(boolean)false"
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#define SINK_CAPS_TMPL "video/mpeg, mpegversion=(int){1, 2}, systemstream=(boolean)false, parsed=(boolean)true"
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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_TMPL)
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);
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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_TMPL)
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);
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/* some data */
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/* actually seq + gop */
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static guint8 mpeg2_seq[] = {
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0x00, 0x00, 0x01, 0xb3, 0x02, 0x00, 0x18, 0x15,
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0xff, 0xff, 0xe0, 0x28, 0x00, 0x00, 0x01, 0xb5,
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0x14, 0x8a, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
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0x01, 0xb8, 0x00, 0x08, 0x00, 0x00
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};
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/* actually seq + gop */
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static guint8 mpeg1_seq[] = {
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0x00, 0x00, 0x01, 0xb3, 0x02, 0x00, 0x18, 0x15,
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0xff, 0xff, 0xe0, 0x28, 0x00, 0x00, 0x01, 0xb8,
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0x00, 0x08, 00, 00
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};
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/* keyframes all around */
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static guint8 mpeg2_iframe[] = {
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0x00, 0x00, 0x01, 0x00, 0x00, 0x0f, 0xff, 0xf8,
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0x00, 0x00, 0x01, 0xb5, 0x8f, 0xff, 0xf3, 0x41,
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0x80, 0x00, 0x00, 0x01, 0x01, 0x23, 0xf8, 0x7d,
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0x29, 0x48, 0x8b, 0x94, 0xa5, 0x22, 0x20, 0x00,
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0x00, 0x01, 0x02, 0x23, 0xf8, 0x7d, 0x29, 0x48,
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0x8b, 0x94, 0xa5, 0x22, 0x20
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};
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static guint8 mpeg1_iframe[] = {
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0x00, 0x00, 0x01, 0x00, 0x00, 0x0f, 0xff, 0xf8,
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0x00, 0x00, 0x01, 0x01, 0x23, 0xf8, 0x7d,
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0x29, 0x48, 0x8b, 0x94, 0xa5, 0x22, 0x20, 0x00,
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0x00, 0x01, 0x02, 0x23, 0xf8, 0x7d, 0x29, 0x48,
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0x8b, 0x94, 0xa5, 0x22, 0x20
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};
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static gboolean
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verify_buffer (buffer_verify_data_s * vdata, GstBuffer * buffer)
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{
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GstMapInfo map;
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gst_buffer_map (buffer, &map, GST_MAP_READ);
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/* check initial header special case, otherwise delegate to default */
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if (vdata->discard) {
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/* header is separate */
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fail_unless (map.size == ctx_headers[0].size - 8);
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fail_unless (memcmp (map.data, ctx_headers[0].data, map.size) == 0);
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} else {
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/* header is merged in initial frame */
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if (vdata->buffer_counter == 0) {
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fail_unless (map.size > 4);
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if (GST_READ_UINT32_BE (map.data) == 0x1b3) {
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/* the whole sequence header is included */
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fail_unless (map.size ==
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ctx_headers[0].size + vdata->data_to_verify_size);
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fail_unless (memcmp (map.data, ctx_headers[0].data,
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ctx_headers[0].size) == 0);
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fail_unless (memcmp (map.data + ctx_headers[0].size,
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vdata->data_to_verify, vdata->data_to_verify_size) == 0);
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} else {
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/* sequence was separate, only gop here */
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fail_unless (map.size == 8 + vdata->data_to_verify_size);
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fail_unless (memcmp (map.data,
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ctx_headers[0].data + ctx_headers[0].size - 8, 8) == 0);
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fail_unless (memcmp (map.data + 8,
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vdata->data_to_verify, vdata->data_to_verify_size) == 0);
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}
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gst_buffer_unmap (buffer, &map);
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return TRUE;
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}
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}
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gst_buffer_unmap (buffer, &map);
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return FALSE;
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}
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#define GOP_SPLIT "gop-split"
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static GstElement *
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setup_element (const gchar * desc)
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{
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GstElement *element;
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if (strcmp (desc, GOP_SPLIT) == 0) {
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element = gst_check_setup_element ("mpegvideoparse");
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g_object_set (G_OBJECT (element), "gop-split", TRUE, NULL);
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} else {
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element = gst_check_setup_element ("mpegvideoparse");
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}
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return element;
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}
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GST_START_TEST (test_parse_normal)
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{
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gst_parser_test_normal (mpeg2_iframe, sizeof (mpeg2_iframe));
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}
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GST_END_TEST;
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GST_START_TEST (test_parse_drain_single)
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{
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gst_parser_test_drain_single (mpeg2_iframe, sizeof (mpeg2_iframe));
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}
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GST_END_TEST;
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GST_START_TEST (test_parse_split)
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{
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gst_parser_test_split (mpeg2_iframe, sizeof (mpeg2_iframe));
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}
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GST_END_TEST;
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#define structure_get_int(s,f) \
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(g_value_get_int(gst_structure_get_value(s,f)))
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#define fail_unless_structure_field_int_equals(s,field,num) \
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fail_unless_equals_int (structure_get_int(s,field), num)
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static void
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mpeg_video_parse_check_caps (guint version, guint8 * seq, gint size)
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{
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GstCaps *caps;
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GstStructure *s;
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GstBuffer *buf;
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const GValue *val;
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GstMapInfo map;
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ctx_headers[0].data = seq;
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ctx_headers[0].size = size;
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if (version == 1)
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caps = gst_parser_test_get_output_caps (mpeg1_iframe, sizeof (mpeg1_iframe),
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NULL);
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else
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caps = gst_parser_test_get_output_caps (mpeg2_iframe, sizeof (mpeg2_iframe),
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NULL);
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fail_unless (caps != NULL);
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/* Check that the negotiated caps are as expected */
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/* When codec_data is present, parser assumes that data is version 4 */
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GST_LOG ("mpegvideo output caps: %" GST_PTR_FORMAT, caps);
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s = gst_caps_get_structure (caps, 0);
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fail_unless (gst_structure_has_name (s, "video/mpeg"));
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fail_unless_structure_field_int_equals (s, "mpegversion", version);
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fail_unless_structure_field_int_equals (s, "width", 32);
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fail_unless_structure_field_int_equals (s, "height", 24);
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fail_unless (gst_structure_has_field (s, "codec_data"));
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/* check codec-data in more detail */
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val = gst_structure_get_value (s, "codec_data");
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fail_unless (val != NULL);
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buf = gst_value_get_buffer (val);
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fail_unless (buf != NULL);
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gst_buffer_map (buf, &map, GST_MAP_READ);
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/* codec-data = header - GOP */
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assert_equals_int (map.size, size - 8);
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fail_unless (memcmp (map.data, seq, map.size) == 0);
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gst_buffer_unmap (buf, &map);
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gst_caps_unref (caps);
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}
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GST_START_TEST (test_parse_detect_stream_mpeg2)
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{
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mpeg_video_parse_check_caps (2, mpeg2_seq, sizeof (mpeg2_seq));
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}
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GST_END_TEST;
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GST_START_TEST (test_parse_detect_stream_mpeg1)
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{
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mpeg_video_parse_check_caps (1, mpeg1_seq, sizeof (mpeg1_seq));
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}
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GST_END_TEST;
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GST_START_TEST (test_parse_gop_split)
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{
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ctx_factory = GOP_SPLIT;
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ctx_discard = 1;
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gst_parser_test_normal (mpeg2_iframe, sizeof (mpeg2_iframe));
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ctx_factory = "mpegvideoparse";
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ctx_discard = 0;
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}
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GST_END_TEST;
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GST_START_TEST (test_parse_cea708_captions)
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{
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GstClockTime last_ts = 0;
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GstHarness *h;
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GstBuffer *buf;
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gchar *fn;
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gint i, j;
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h = gst_harness_new_parse ("filesrc name=filesrc ! mpegvideoparse");
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/* Minimal stripped down MPEG-2 video elementary stream with truncated slices.
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* Created via mpegvideoparse ! multifilesink and then truncating all files
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* to 80-100 bytes or such and concatenating them back together. */
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fn = g_build_filename (GST_TEST_FILES_PATH, "mpeg2-es-with-cea708-cc.dat",
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NULL);
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gst_harness_set (h, "filesrc", "location", fn, NULL);
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g_free (fn);
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gst_harness_play (h);
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for (i = 0; i < 50; ++i) {
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GstVideoCaptionMeta *caption_meta;
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buf = gst_harness_pull (h);
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GST_LOG ("pulled buffer %" GST_PTR_FORMAT, buf);
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caption_meta = gst_buffer_get_video_caption_meta (buf);
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fail_unless (caption_meta != NULL);
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fail_unless_equals_int (caption_meta->caption_type,
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GST_VIDEO_CAPTION_TYPE_CEA708_RAW);
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fail_unless_equals_int (caption_meta->size, 60);
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/* iterate over triplets */
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for (j = 0; j < 20; ++j) {
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guint8 cc_type = caption_meta->data[3 * j] & 0x03;
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/* first triplet always CEA-608 line 21 field 2 in our sample */
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if (j == 0)
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fail_unless_equals_int (cc_type, 1);
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/* second triplet always CEA-608 line 21 field 1 in our sample */
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if (j == 1)
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fail_unless_equals_int (cc_type, 0);
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if (j > 2)
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fail_unless (cc_type == 2 || cc_type == 3);
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/* first packet starts with a CCP header */
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if (i == 0 && j == 2)
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fail_unless (cc_type == 3);
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}
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/* buffer sanity check */
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if (i > 0)
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fail_unless (GST_BUFFER_DTS (buf) > last_ts);
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last_ts = GST_BUFFER_DTS (buf);
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gst_buffer_unref (buf);
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}
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gst_harness_teardown (h);
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}
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GST_END_TEST;
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static Suite *
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mpegvideoparse_suite (void)
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{
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Suite *s = suite_create ("mpegvideoparse");
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TCase *tc_chain = tcase_create ("general");
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/* init test context */
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ctx_factory = "mpegvideoparse";
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ctx_sink_template = &sinktemplate;
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ctx_src_template = &srctemplate;
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ctx_headers[0].data = mpeg2_seq;
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ctx_headers[0].size = sizeof (mpeg2_seq);
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ctx_verify_buffer = verify_buffer;
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ctx_setup = setup_element;
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suite_add_tcase (s, tc_chain);
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tcase_add_test (tc_chain, test_parse_normal);
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tcase_add_test (tc_chain, test_parse_drain_single);
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tcase_add_test (tc_chain, test_parse_split);
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tcase_add_test (tc_chain, test_parse_detect_stream_mpeg1);
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tcase_add_test (tc_chain, test_parse_detect_stream_mpeg2);
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tcase_add_test (tc_chain, test_parse_gop_split);
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tcase_add_test (tc_chain, test_parse_cea708_captions);
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return s;
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}
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/*
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* TODO:
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* - Both push- and pull-modes need to be tested
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* * Pull-mode & EOS
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*/
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GST_CHECK_MAIN (mpegvideoparse);
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