tests: add unit tests for a number of video parsers

tests/check/Makefile.am

@@ -169,6 +169,10 @@ check_PROGRAMS = \
         $(check_jifmux) \
 	elements/jpegparse \
 	$(check_logoinsert) \
+	elements/h263parse \
+	elements/h264parse \
+	elements/mpegvideoparse \
+	elements/mpeg4videoparse \
 	elements/mxfdemux \
 	elements/mxfmux \
 	elements/id3mux \
@@ -190,6 +194,21 @@ AM_CFLAGS = $(GST_CHECK_CFLAGS) $(GST_OPTION_CFLAGS) \
 		-UG_DISABLE_ASSERT -UG_DISABLE_CAST_CHECKS
 LDADD = $(GST_CHECK_LIBS)
 
+# parser unit test convenience lib
+noinst_LTLIBRARIES = libparser.la
+libparser_la_SOURCES = elements/parser.c elements/parser.h
+libparser_la_CFLAGS = \
+	-I$(top_srcdir)/tests/check \
+	$(GST_CHECK_CFLAGS) $(GST_OPTION_CFLAGS)
+
+elements_mpegvideoparse_LDADD = libparser.la $(LDADD)
+
+elements_mpeg4videoparse_LDADD = libparser.la $(LDADD)
+
+elements_h263parse_LDADD = libparser.la $(LDADD)
+
+elements_h264parse_LDADD = libparser.la $(LDADD)
+
 elements_voaacenc_CFLAGS = \
 	$(GST_PLUGINS_BASE_CFLAGS) \
 	$(GST_BASE_CFLAGS) $(GST_CFLAGS) $(AM_CFLAGS)

tests/check/elements/h263parse.c

@@ -0,0 +1,175 @@
+/*
+ * GStreamer
+ *
+ * unit test for h263parse
+ *
+ * Copyright (C) 2011 Nokia Corporation. All rights reserved.
+ *
+ * Contact: Stefan Kost <stefan.kost@nokia.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.
+ */
+
+#include <gst/check/gstcheck.h>
+#include "parser.h"
+
+#define SRC_CAPS_TMPL   "video/x-h263, framed=(boolean)false"
+#define SINK_CAPS_TMPL  "video/x-h263, framed=(boolean)true"
+
+GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (SINK_CAPS_TMPL)
+    );
+
+GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (SRC_CAPS_TMPL)
+    );
+
+/* some data */
+
+#if 0
+static guint8 h263_iframe[] = {
+  /* keyframes all around */
+  0x00, 0x00, 0x80, 0x02, 0x1c, 0x88, 0x01, 0x00,
+  0x11, 0xe0, 0x44, 0xc4, 0x04, 0x04, 0x04, 0x3f,
+  0xff, 0xe6, 0x20, 0x20, 0x20, 0x21, 0xff, 0xff,
+  0x31, 0x01, 0x01, 0x01, 0x0f, 0xff, 0xf9, 0x88,
+  0x08, 0x08, 0x08, 0x7f, 0xff, 0x80
+};
+#endif
+
+static guint8 h263_iframe[] = {
+  /* keyframes all around */
+  /* actually, this is a truncated keyframe,
+   * but don't tell anyone or try this at home */
+  0x00, 0x00, 0x80, 0x02, 0x0c, 0x04, 0x26, 0x20,
+  0x20, 0x20, 0x21, 0xff, 0xff, 0x31, 0x01, 0x01,
+  0x01, 0x0f, 0xff, 0xf9, 0x88, 0x08, 0x08, 0x08,
+  0x7f, 0xff, 0xcc, 0x40, 0x40, 0x40, 0x43, 0xff,
+  0xfe, 0x62, 0x02, 0x02, 0x02, 0x1f, 0xff, 0xf3,
+  0x10, 0x10, 0x10, 0x10, 0xff, 0xff, 0x98, 0x80,
+  0x80, 0x80, 0x87, 0xff, 0xfc, 0xc4, 0x04, 0x04,
+  0x04, 0x3f, 0xff, 0xe6, 0x20, 0x20, 0x20, 0x21,
+  0xff, 0xff, 0x31, 0x01, 0x01, 0x01, 0x0f, 0xff,
+  0xf9, 0x88, 0x08, 0x08, 0x08, 0x7f, 0xff, 0xcc,
+  0x40, 0x40, 0x40, 0x43, 0xff, 0xfe, 0x62, 0x02,
+  0x02, 0x02, 0x1f, 0xff, 0xf3, 0x10, 0x10, 0x10,
+  0x10, 0xff, 0xff, 0x98, 0x80, 0x80, 0x80, 0x87,
+  0xff, 0xfc, 0xc4, 0x04, 0x04, 0x04, 0x3f, 0xff,
+  0xe6, 0x20, 0x20, 0x20, 0x21, 0xff, 0xff, 0x31,
+  0x01, 0x01, 0x01, 0x0f, 0xff, 0xf9, 0x88, 0x08
+};
+
+GST_START_TEST (test_parse_normal)
+{
+  gst_parser_test_normal (h263_iframe, sizeof (h263_iframe));
+}
+
+GST_END_TEST;
+
+
+GST_START_TEST (test_parse_drain_single)
+{
+  gst_parser_test_drain_single (h263_iframe, sizeof (h263_iframe));
+}
+
+GST_END_TEST;
+
+
+GST_START_TEST (test_parse_split)
+{
+  gst_parser_test_split (h263_iframe, sizeof (h263_iframe));
+}
+
+GST_END_TEST;
+
+
+#define structure_get_int(s,f) \
+    (g_value_get_int(gst_structure_get_value(s,f)))
+#define fail_unless_structure_field_int_equals(s,field,num) \
+    fail_unless_equals_int (structure_get_int(s,field), num)
+
+GST_START_TEST (test_parse_detect_stream)
+{
+  GstCaps *caps;
+  GstStructure *s;
+
+  caps = gst_parser_test_get_output_caps (h263_iframe, sizeof (h263_iframe),
+      NULL);
+  fail_unless (caps != NULL);
+
+  /* Check that the negotiated caps are as expected */
+  /* When codec_data is present, parser assumes that data is version 4 */
+  GST_LOG ("mpegvideo output caps: %" GST_PTR_FORMAT, caps);
+  s = gst_caps_get_structure (caps, 0);
+  fail_unless (gst_structure_has_name (s, "video/x-h263"));
+  fail_unless_structure_field_int_equals (s, "width", 352);
+  fail_unless_structure_field_int_equals (s, "height", 288);
+
+  gst_caps_unref (caps);
+}
+
+GST_END_TEST;
+
+
+static Suite *
+h263parse_suite (void)
+{
+  Suite *s = suite_create ("h263parse");
+  TCase *tc_chain = tcase_create ("general");
+
+  suite_add_tcase (s, tc_chain);
+  tcase_add_test (tc_chain, test_parse_normal);
+  tcase_add_test (tc_chain, test_parse_drain_single);
+  tcase_add_test (tc_chain, test_parse_split);
+  tcase_add_test (tc_chain, test_parse_detect_stream);
+
+  return s;
+}
+
+
+/*
+ * TODO:
+ *   - Both push- and pull-modes need to be tested
+ *      * Pull-mode & EOS
+ */
+
+int
+main (int argc, char **argv)
+{
+  int nf;
+
+  Suite *s = h263parse_suite ();
+  SRunner *sr = srunner_create (s);
+
+  gst_check_init (&argc, &argv);
+
+  /* init test context */
+  ctx_factory = "h263parse";
+  ctx_sink_template = &sinktemplate;
+  ctx_src_template = &srctemplate;
+  /* no timing info to parse */
+  ctx_no_metadata = TRUE;
+
+  srunner_run_all (sr, CK_NORMAL);
+  nf = srunner_ntests_failed (sr);
+  srunner_free (sr);
+
+  return nf;
+}

tests/check/elements/h264parse.c

@@ -0,0 +1,393 @@
+/*
+ * GStreamer
+ *
+ * unit test for h264parse
+ *
+ * Copyright (C) 2011 Nokia Corporation. All rights reserved.
+ *
+ * Contact: Stefan Kost <stefan.kost@nokia.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.
+ */
+
+#include <gst/check/gstcheck.h>
+#include "parser.h"
+
+#define SRC_CAPS_TMPL   "video/x-h264, parsed=(boolean)false"
+#define SINK_CAPS_TMPL  "video/x-h264, parsed=(boolean)true"
+
+GstStaticPadTemplate sinktemplate_bs_nal = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (SINK_CAPS_TMPL
+        ", stream-format = (string) byte-stream, alignment = (string) nal")
+    );
+
+GstStaticPadTemplate sinktemplate_avc_au = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (SINK_CAPS_TMPL
+        ", stream-format = (string) avc, alignment = (string) au")
+    );
+
+GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (SRC_CAPS_TMPL)
+    );
+
+/* some data */
+
+/* SPS */
+static guint8 h264_sps[] = {
+  0x00, 0x00, 0x00, 0x01, 0x67, 0x4d, 0x40, 0x15,
+  0xec, 0xa4, 0xbf, 0x2e, 0x02, 0x20, 0x00, 0x00,
+  0x03, 0x00, 0x2e, 0xe6, 0xb2, 0x80, 0x01, 0xe2,
+  0xc5, 0xb2, 0xc0
+};
+
+/* PPS */
+static guint8 h264_pps[] = {
+  0x00, 0x00, 0x00, 0x01, 0x68, 0xeb, 0xec, 0xb2
+};
+
+/* combines to this codec-data */
+static guint8 h264_codec_data[] = {
+  0x01, 0x4d, 0x40, 0x15, 0xff, 0xe1, 0x00, 0x17,
+  0x67, 0x4d, 0x40, 0x15, 0xec, 0xa4, 0xbf, 0x2e,
+  0x02, 0x20, 0x00, 0x00, 0x03, 0x00, 0x2e, 0xe6,
+  0xb2, 0x80, 0x01, 0xe2, 0xc5, 0xb2, 0xc0, 0x01,
+  0x00, 0x04, 0x68, 0xeb, 0xec, 0xb2
+};
+
+/* keyframes all around */
+static guint8 h264_idrframe[] = {
+  0x00, 0x00, 0x00, 0x01, 0x65, 0x88, 0x84, 0x00,
+  0x10, 0xff, 0xfe, 0xf6, 0xf0, 0xfe, 0x05, 0x36,
+  0x56, 0x04, 0x50, 0x96, 0x7b, 0x3f, 0x53, 0xe1
+};
+
+/* truncated nal */
+static guint8 garbage_frame[] = {
+  0x00, 0x00, 0x00, 0x01, 0x05
+};
+
+/* context to tweak tests */
+static const gchar *ctx_suite;
+static gboolean ctx_codec_data;
+
+static gboolean
+verify_buffer (buffer_verify_data_s * vdata, GstBuffer * buffer)
+{
+  if (vdata->discard) {
+    /* check separate header NALs */
+    gint i = vdata->buffer_counter;
+
+    fail_unless (i <= 1);
+    fail_unless (GST_BUFFER_SIZE (buffer) == ctx_headers[i].size);
+    fail_unless (memcmp (GST_BUFFER_DATA (buffer), ctx_headers[i].data,
+            GST_BUFFER_SIZE (buffer)) == 0);
+  } else {
+    fail_unless (GST_BUFFER_SIZE (buffer) > 4);
+    /* only need to check avc output case */
+    if (GST_READ_UINT32_BE (GST_BUFFER_DATA (buffer)) == 0x01)
+      return FALSE;
+    /* header is merged in initial frame */
+    if (vdata->buffer_counter == 0) {
+      guint8 *data = GST_BUFFER_DATA (buffer);
+
+      fail_unless (GST_BUFFER_SIZE (buffer) == vdata->data_to_verify_size +
+          ctx_headers[0].size + ctx_headers[1].size);
+      fail_unless (GST_READ_UINT32_BE (data) == ctx_headers[0].size - 4);
+      fail_unless (memcmp (data + 4, ctx_headers[0].data + 4,
+              ctx_headers[0].size - 4) == 0);
+      data += ctx_headers[0].size;
+      fail_unless (GST_READ_UINT32_BE (data) == ctx_headers[1].size - 4);
+      fail_unless (memcmp (data + 4, ctx_headers[1].data + 4,
+              ctx_headers[1].size - 4) == 0);
+      data += ctx_headers[1].size;
+      fail_unless (GST_READ_UINT32_BE (data) == vdata->data_to_verify_size - 4);
+      fail_unless (memcmp (data + 4, vdata->data_to_verify + 4,
+              vdata->data_to_verify_size - 4) == 0);
+    } else {
+      fail_unless (GST_READ_UINT32_BE (GST_BUFFER_DATA (buffer)) ==
+          GST_BUFFER_SIZE (buffer) - 4);
+      fail_unless (GST_BUFFER_SIZE (buffer) == vdata->data_to_verify_size);
+      fail_unless (memcmp (GST_BUFFER_DATA (buffer) + 4,
+              vdata->data_to_verify + 4, GST_BUFFER_SIZE (buffer) - 4) == 0);
+    }
+    return TRUE;
+  }
+
+  return FALSE;
+}
+
+GST_START_TEST (test_parse_normal)
+{
+  gst_parser_test_normal (h264_idrframe, sizeof (h264_idrframe));
+}
+
+GST_END_TEST;
+
+
+GST_START_TEST (test_parse_drain_single)
+{
+  gst_parser_test_drain_single (h264_idrframe, sizeof (h264_idrframe));
+}
+
+GST_END_TEST;
+
+
+GST_START_TEST (test_parse_drain_garbage)
+{
+  gst_parser_test_drain_garbage (h264_idrframe, sizeof (h264_idrframe),
+      garbage_frame, sizeof (garbage_frame));
+}
+
+GST_END_TEST
+GST_START_TEST (test_parse_split)
+{
+  gst_parser_test_split (h264_idrframe, sizeof (h264_idrframe));
+}
+
+GST_END_TEST;
+
+
+GST_START_TEST (test_parse_skip_garbage)
+{
+  gst_parser_test_skip_garbage (h264_idrframe, sizeof (h264_idrframe),
+      garbage_frame, sizeof (garbage_frame));
+}
+
+GST_END_TEST;
+
+#define structure_get_int(s,f) \
+    (g_value_get_int(gst_structure_get_value(s,f)))
+#define fail_unless_structure_field_int_equals(s,field,num) \
+    fail_unless_equals_int (structure_get_int(s,field), num)
+
+
+GST_START_TEST (test_parse_detect_stream)
+{
+  GstCaps *caps;
+  GstStructure *s;
+  GstBuffer *buf;
+  const GValue *val;
+
+  /* parser does not really care that mpeg1 and mpeg2 frame data
+   * should be a bit different */
+  caps = gst_parser_test_get_output_caps (h264_idrframe, sizeof (h264_idrframe),
+      NULL);
+  fail_unless (caps != NULL);
+
+  /* Check that the negotiated caps are as expected */
+  /* When codec_data is present, parser assumes that data is version 4 */
+  GST_LOG ("h264 output caps: %" GST_PTR_FORMAT, caps);
+  s = gst_caps_get_structure (caps, 0);
+  fail_unless (gst_structure_has_name (s, "video/x-h264"));
+  fail_unless_structure_field_int_equals (s, "width", 32);
+  fail_unless_structure_field_int_equals (s, "height", 24);
+
+  if (ctx_codec_data) {
+    fail_unless (gst_structure_has_field (s, "codec_data"));
+
+    /* check codec-data in more detail */
+    val = gst_structure_get_value (s, "codec_data");
+    fail_unless (val != NULL);
+    buf = gst_value_get_buffer (val);
+    fail_unless (buf != NULL);
+    fail_unless (GST_BUFFER_SIZE (buf) == sizeof (h264_codec_data));
+    fail_unless (memcmp (GST_BUFFER_DATA (buf), h264_codec_data,
+            GST_BUFFER_SIZE (buf)) == 0);
+  }
+
+  gst_caps_unref (caps);
+}
+
+GST_END_TEST;
+
+
+static Suite *
+h264parse_suite (void)
+{
+  Suite *s = suite_create (ctx_suite);
+  TCase *tc_chain = tcase_create ("general");
+
+  suite_add_tcase (s, tc_chain);
+  tcase_add_test (tc_chain, test_parse_normal);
+  tcase_add_test (tc_chain, test_parse_drain_single);
+  tcase_add_test (tc_chain, test_parse_drain_garbage);
+  tcase_add_test (tc_chain, test_parse_split);
+  tcase_add_test (tc_chain, test_parse_skip_garbage);
+  tcase_add_test (tc_chain, test_parse_detect_stream);
+
+  return s;
+}
+
+static gboolean
+verify_buffer_packetized (buffer_verify_data_s * vdata, GstBuffer * buffer)
+{
+  fail_unless (GST_BUFFER_SIZE (buffer) > 4);
+  fail_unless (GST_READ_UINT32_BE (GST_BUFFER_DATA (buffer)) == 0x01);
+  if (vdata->discard) {
+    /* check separate header NALs */
+    guint8 *data;
+    gint size;
+
+    if (vdata->buffer_counter == 0) {
+      data = h264_sps;
+      size = sizeof (h264_sps);
+    } else {
+      data = h264_pps;
+      size = sizeof (h264_pps);
+    }
+
+    fail_unless (GST_BUFFER_SIZE (buffer) == size);
+    fail_unless (memcmp (GST_BUFFER_DATA (buffer) + 4, data + 4,
+            size - 4) == 0);
+  } else {
+    fail_unless (GST_BUFFER_SIZE (buffer) == vdata->data_to_verify_size);
+    fail_unless (memcmp (GST_BUFFER_DATA (buffer) + 4,
+            vdata->data_to_verify + 4, GST_BUFFER_SIZE (buffer) - 4) == 0);
+  }
+
+  return TRUE;
+}
+
+GST_START_TEST (test_parse_packetized)
+{
+  guint8 *frame;
+  GstCaps *caps;
+  GstBuffer *cdata;
+  GstStructure *s;
+  gchar *desc;
+
+  /* make AVC frame */
+  frame = g_malloc (sizeof (h264_idrframe));
+  GST_WRITE_UINT32_BE (frame, sizeof (h264_idrframe) - 4);
+  memcpy (frame + 4, h264_idrframe + 4, sizeof (h264_idrframe) - 4);
+
+  /* some caps messing */
+  caps = gst_caps_from_string (SRC_CAPS_TMPL);
+  cdata = gst_buffer_new ();
+  GST_BUFFER_DATA (cdata) = h264_codec_data;
+  GST_BUFFER_SIZE (cdata) = sizeof (h264_codec_data);
+  gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, cdata, NULL);
+  gst_buffer_unref (cdata);
+  desc = gst_caps_to_string (caps);
+  gst_caps_unref (caps);
+
+  caps = gst_parser_test_get_output_caps (frame, sizeof (h264_idrframe), desc);
+  g_free (desc);
+  g_free (frame);
+
+  /* minor caps checks */
+  GST_LOG ("h264 output caps: %" GST_PTR_FORMAT, caps);
+  s = gst_caps_get_structure (caps, 0);
+  fail_unless (gst_structure_has_name (s, "video/x-h264"));
+  fail_unless_structure_field_int_equals (s, "width", 32);
+  fail_unless_structure_field_int_equals (s, "height", 24);
+
+  gst_caps_unref (caps);
+}
+
+GST_END_TEST;
+
+static Suite *
+h264parse_packetized_suite (void)
+{
+  Suite *s = suite_create (ctx_suite);
+  TCase *tc_chain = tcase_create ("general");
+
+  suite_add_tcase (s, tc_chain);
+  tcase_add_test (tc_chain, test_parse_packetized);
+
+  return s;
+}
+
+
+/*
+ * TODO:
+ *   - Both push- and pull-modes need to be tested
+ *      * Pull-mode & EOS
+ */
+
+int
+main (int argc, char **argv)
+{
+  int nf;
+
+  Suite *s;
+  SRunner *sr;
+
+  gst_check_init (&argc, &argv);
+
+  /* globabl init test context */
+  ctx_factory = "h264parse";
+  ctx_sink_template = &sinktemplate_bs_nal;
+  ctx_src_template = &srctemplate;
+  ctx_headers[0].data = h264_sps;
+  ctx_headers[0].size = sizeof (h264_sps);
+  ctx_headers[1].data = h264_pps;
+  ctx_headers[1].size = sizeof (h264_pps);
+  ctx_verify_buffer = verify_buffer;
+  /* discard initial sps/pps buffers */
+  ctx_discard = 2;
+  /* no timing info to parse */
+  ctx_no_metadata = TRUE;
+  ctx_codec_data = FALSE;
+
+  ctx_suite = "h264parse_to_bs_nal";
+  s = h264parse_suite ();
+  sr = srunner_create (s);
+  srunner_run_all (sr, CK_NORMAL);
+  nf = srunner_ntests_failed (sr);
+  srunner_free (sr);
+
+  /* setup and tweak to handle avc au output */
+  ctx_suite = "h264parse_to_avc_au";
+  ctx_sink_template = &sinktemplate_avc_au;
+  ctx_discard = 0;
+  ctx_codec_data = TRUE;
+
+  s = h264parse_suite ();
+  sr = srunner_create (s);
+  srunner_run_all (sr, CK_NORMAL);
+  nf = srunner_ntests_failed (sr);
+  srunner_free (sr);
+
+  /* setup and tweak to handle avc packetized input */
+  ctx_suite = "h264parse_packetized";
+  /* turn into separate byte stream NALs */
+  ctx_sink_template = &sinktemplate_bs_nal;
+  /* and ignore inserted codec-data NALs */
+  ctx_discard = 2;
+  /* no more config headers */
+  ctx_headers[0].data = NULL;
+  ctx_headers[1].data = NULL;
+  ctx_headers[0].size = 0;
+  ctx_headers[1].size = 0;
+  /* and need adapter buffer check */
+  ctx_verify_buffer = verify_buffer_packetized;
+
+  s = h264parse_packetized_suite ();
+  sr = srunner_create (s);
+  srunner_run_all (sr, CK_NORMAL);
+  nf = srunner_ntests_failed (sr);
+  srunner_free (sr);
+
+  return nf;
+}

tests/check/elements/mpeg4videoparse.c

@@ -0,0 +1,193 @@
+/*
+ * GStreamer
+ *
+ * unit test for mpeg4videoparse
+ *
+ * Copyright (C) 2011 Nokia Corporation. All rights reserved.
+ *
+ * Contact: Stefan Kost <stefan.kost@nokia.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.
+ */
+
+#include <gst/check/gstcheck.h>
+#include "parser.h"
+
+#define SRC_CAPS_TMPL   "video/mpeg, framed=(boolean)false"
+#define SINK_CAPS_TMPL  "video/mpeg, framed=(boolean)true"
+
+GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (SINK_CAPS_TMPL)
+    );
+
+GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (SRC_CAPS_TMPL)
+    );
+
+/* some data */
+
+/* codec data; VOS up to and including GOP */
+static guint8 mpeg4_config[] = {
+  0x00, 0x00, 0x01, 0xb0, 0x01, 0x00, 0x00, 0x01,
+  0xb5, 0x89, 0x13, 0x00, 0x00, 0x01, 0x00, 0x00,
+  0x00, 0x01, 0x20, 0x00, 0xc4, 0x8d, 0x88, 0x00,
+  0xf5, 0x01, 0x04, 0x03, 0x14, 0x63, 0x00, 0x00,
+  0x01, 0xb3, 0x00, 0x10, 0x07
+};
+
+/* keyframes all around */
+static guint8 mpeg4_iframe[] = {
+  0x00, 0x00, 0x01, 0xb6, 0x10, 0x60, 0x91, 0x82,
+  0x3d, 0xb7, 0xf1, 0xb6, 0xdf, 0xc6, 0xdb, 0x7f,
+  0x1b, 0x6d, 0xfb
+};
+
+static gboolean
+verify_buffer (buffer_verify_data_s * vdata, GstBuffer * buffer)
+{
+  /* header is merged in initial frame */
+  if (vdata->buffer_counter == 0) {
+    /* the whole sequence header is included */
+    fail_unless (GST_BUFFER_SIZE (buffer) ==
+        ctx_headers[0].size + vdata->data_to_verify_size);
+    fail_unless (memcmp (GST_BUFFER_DATA (buffer), ctx_headers[0].data,
+            ctx_headers[0].size) == 0);
+    fail_unless (memcmp (GST_BUFFER_DATA (buffer) + ctx_headers[0].size,
+            vdata->data_to_verify, vdata->data_to_verify_size) == 0);
+    return TRUE;
+  }
+
+  return FALSE;
+}
+
+GST_START_TEST (test_parse_normal)
+{
+  gst_parser_test_normal (mpeg4_iframe, sizeof (mpeg4_iframe));
+}
+
+GST_END_TEST;
+
+
+GST_START_TEST (test_parse_drain_single)
+{
+  gst_parser_test_drain_single (mpeg4_iframe, sizeof (mpeg4_iframe));
+}
+
+GST_END_TEST;
+
+
+GST_START_TEST (test_parse_split)
+{
+  gst_parser_test_split (mpeg4_iframe, sizeof (mpeg4_iframe));
+}
+
+GST_END_TEST;
+
+
+#define structure_get_int(s,f) \
+    (g_value_get_int(gst_structure_get_value(s,f)))
+#define fail_unless_structure_field_int_equals(s,field,num) \
+    fail_unless_equals_int (structure_get_int(s,field), num)
+
+GST_START_TEST (test_parse_detect_stream)
+{
+  GstCaps *caps;
+  GstStructure *s;
+  GstBuffer *buf;
+  const GValue *val;
+
+  caps = gst_parser_test_get_output_caps (mpeg4_iframe, sizeof (mpeg4_iframe),
+      NULL);
+  fail_unless (caps != NULL);
+
+  /* Check that the negotiated caps are as expected */
+  /* When codec_data is present, parser assumes that data is version 4 */
+  GST_LOG ("mpeg4video output caps: %" GST_PTR_FORMAT, caps);
+  s = gst_caps_get_structure (caps, 0);
+  fail_unless (gst_structure_has_name (s, "video/mpeg"));
+  fail_unless_structure_field_int_equals (s, "mpegversion", 4);
+  fail_unless_structure_field_int_equals (s, "width", 32);
+  fail_unless_structure_field_int_equals (s, "height", 24);
+  fail_unless (gst_structure_has_field (s, "codec_data"));
+
+  /* check codec-data in more detail */
+  val = gst_structure_get_value (s, "codec_data");
+  fail_unless (val != NULL);
+  buf = gst_value_get_buffer (val);
+  fail_unless (buf != NULL);
+  /* codec-data == config header - GOP */
+  fail_unless (GST_BUFFER_SIZE (buf) == sizeof (mpeg4_config) - 7);
+  fail_unless (memcmp (GST_BUFFER_DATA (buf), mpeg4_config,
+          GST_BUFFER_SIZE (buf)) == 0);
+
+  gst_caps_unref (caps);
+}
+
+GST_END_TEST;
+
+
+static Suite *
+mpeg4videoparse_suite (void)
+{
+  Suite *s = suite_create ("mpeg4videoparse");
+  TCase *tc_chain = tcase_create ("general");
+
+  suite_add_tcase (s, tc_chain);
+  tcase_add_test (tc_chain, test_parse_normal);
+  tcase_add_test (tc_chain, test_parse_drain_single);
+  tcase_add_test (tc_chain, test_parse_split);
+  tcase_add_test (tc_chain, test_parse_detect_stream);
+
+  return s;
+}
+
+
+/*
+ * TODO:
+ *   - Both push- and pull-modes need to be tested
+ *      * Pull-mode & EOS
+ */
+
+int
+main (int argc, char **argv)
+{
+  int nf;
+
+  Suite *s = mpeg4videoparse_suite ();
+  SRunner *sr = srunner_create (s);
+
+  gst_check_init (&argc, &argv);
+
+  /* init test context */
+  ctx_factory = "mpeg4videoparse";
+  ctx_sink_template = &sinktemplate;
+  ctx_src_template = &srctemplate;
+  ctx_headers[0].data = mpeg4_config;
+  ctx_headers[0].size = sizeof (mpeg4_config);
+  ctx_verify_buffer = verify_buffer;
+  /* no timing info to parse */
+  ctx_no_metadata = TRUE;
+
+  srunner_run_all (sr, CK_NORMAL);
+  nf = srunner_ntests_failed (sr);
+  srunner_free (sr);
+
+  return nf;
+}

tests/check/elements/mpegvideoparse.c

@@ -0,0 +1,268 @@
+/*
+ * GStreamer
+ *
+ * unit test for mpegvideoparse
+ *
+ * Copyright (C) 2011 Nokia Corporation. All rights reserved.
+ *
+ * Contact: Stefan Kost <stefan.kost@nokia.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.
+ */
+
+#include <gst/check/gstcheck.h>
+#include "parser.h"
+
+#define SRC_CAPS_TMPL   "video/mpeg, framed=(boolean)false"
+#define SINK_CAPS_TMPL  "video/mpeg, framed=(boolean)true"
+
+GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_PAD_SINK,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (SINK_CAPS_TMPL)
+    );
+
+GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
+    GST_PAD_SRC,
+    GST_PAD_ALWAYS,
+    GST_STATIC_CAPS (SRC_CAPS_TMPL)
+    );
+
+/* some data */
+
+/* actually seq + gop */
+static guint8 mpeg2_seq[] = {
+  0x00, 0x00, 0x01, 0xb3, 0x02, 0x00, 0x18, 0x15,
+  0xff, 0xff, 0xe0, 0x28, 0x00, 0x00, 0x01, 0xb5,
+  0x14, 0x8a, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
+  0x01, 0xb8, 0x00, 0x08, 0x00, 0x00
+};
+
+/* actually seq + gop */
+static guint8 mpeg1_seq[] = {
+  0x00, 0x00, 0x01, 0xb3, 0x02, 0x00, 0x18, 0x15,
+  0xff, 0xff, 0xe0, 0x28, 0x00, 0x00, 0x01, 0xb8,
+  0x00, 0x08, 00, 00
+};
+
+/* keyframes all around */
+static guint8 mpeg2_iframe[] = {
+  0x00, 0x00, 0x01, 0x00, 0x00, 0x0f, 0xff, 0xf8,
+  0x00, 0x00, 0x01, 0xb5, 0x8f, 0xff, 0xf3, 0x41,
+  0x80, 0x00, 0x00, 0x01, 0x01, 0x23, 0xf8, 0x7d,
+  0x29, 0x48, 0x8b, 0x94, 0xa5, 0x22, 0x20, 0x00,
+  0x00, 0x01, 0x02, 0x23, 0xf8, 0x7d, 0x29, 0x48,
+  0x8b, 0x94, 0xa5, 0x22, 0x20
+};
+
+static gboolean
+verify_buffer (buffer_verify_data_s * vdata, GstBuffer * buffer)
+{
+  /* check initial header special case, otherwise delegate to default */
+  if (vdata->discard) {
+    /* header is separate */
+    fail_unless (GST_BUFFER_SIZE (buffer) == ctx_headers[0].size - 8);
+    fail_unless (memcmp (GST_BUFFER_DATA (buffer), ctx_headers[0].data,
+            GST_BUFFER_SIZE (buffer)) == 0);
+  } else {
+    /* header is merged in initial frame */
+    if (vdata->buffer_counter == 0) {
+      fail_unless (GST_BUFFER_SIZE (buffer) > 4);
+      if (GST_READ_UINT32_BE (GST_BUFFER_DATA (buffer)) == 0x1b3) {
+        /* the whole sequence header is included */
+        fail_unless (GST_BUFFER_SIZE (buffer) ==
+            ctx_headers[0].size + vdata->data_to_verify_size);
+        fail_unless (memcmp (GST_BUFFER_DATA (buffer), ctx_headers[0].data,
+                ctx_headers[0].size) == 0);
+        fail_unless (memcmp (GST_BUFFER_DATA (buffer) + ctx_headers[0].size,
+                vdata->data_to_verify, vdata->data_to_verify_size) == 0);
+      } else {
+        /* sequence was separate, only gop here */
+        fail_unless (GST_BUFFER_SIZE (buffer) ==
+            8 + vdata->data_to_verify_size);
+        fail_unless (memcmp (GST_BUFFER_DATA (buffer),
+                ctx_headers[0].data + ctx_headers[0].size - 8, 8) == 0);
+        fail_unless (memcmp (GST_BUFFER_DATA (buffer) + 8,
+                vdata->data_to_verify, vdata->data_to_verify_size) == 0);
+      }
+      return TRUE;
+    }
+  }
+
+  return FALSE;
+}
+
+#define  GOP_SPLIT           "gop-split"
+
+static GstElement *
+setup_element (const gchar * desc)
+{
+  GstElement *element;
+
+  if (strcmp (desc, GOP_SPLIT) == 0) {
+    element = gst_check_setup_element ("mpegvideoparse");
+    g_object_set (G_OBJECT (element), "gop-split", TRUE, NULL);
+  } else {
+    element = gst_check_setup_element ("mpegvideoparse");
+  }
+
+  return element;
+}
+
+GST_START_TEST (test_parse_normal)
+{
+  gst_parser_test_normal (mpeg2_iframe, sizeof (mpeg2_iframe));
+}
+
+GST_END_TEST;
+
+
+GST_START_TEST (test_parse_drain_single)
+{
+  gst_parser_test_drain_single (mpeg2_iframe, sizeof (mpeg2_iframe));
+}
+
+GST_END_TEST;
+
+
+GST_START_TEST (test_parse_split)
+{
+  gst_parser_test_split (mpeg2_iframe, sizeof (mpeg2_iframe));
+}
+
+GST_END_TEST;
+
+
+#define structure_get_int(s,f) \
+    (g_value_get_int(gst_structure_get_value(s,f)))
+#define fail_unless_structure_field_int_equals(s,field,num) \
+    fail_unless_equals_int (structure_get_int(s,field), num)
+
+static void
+mpeg_video_parse_check_caps (guint version, guint8 * seq, gint size)
+{
+  GstCaps *caps;
+  GstStructure *s;
+  GstBuffer *buf;
+  const GValue *val;
+
+  ctx_headers[0].data = seq;
+  ctx_headers[0].size = size;
+  /* parser does not really care that mpeg1 and mpeg2 frame data
+   * should be a bit different */
+  caps = gst_parser_test_get_output_caps (mpeg2_iframe, sizeof (mpeg2_iframe),
+      NULL);
+  fail_unless (caps != NULL);
+
+  /* Check that the negotiated caps are as expected */
+  /* When codec_data is present, parser assumes that data is version 4 */
+  GST_LOG ("mpegvideo output caps: %" GST_PTR_FORMAT, caps);
+  s = gst_caps_get_structure (caps, 0);
+  fail_unless (gst_structure_has_name (s, "video/mpeg"));
+  fail_unless_structure_field_int_equals (s, "mpegversion", version);
+  fail_unless_structure_field_int_equals (s, "width", 32);
+  fail_unless_structure_field_int_equals (s, "height", 24);
+  fail_unless (gst_structure_has_field (s, "codec_data"));
+
+  /* check codec-data in more detail */
+  val = gst_structure_get_value (s, "codec_data");
+  fail_unless (val != NULL);
+  buf = gst_value_get_buffer (val);
+  fail_unless (buf != NULL);
+  /* codec-data = header - GOP */
+  fail_unless (GST_BUFFER_SIZE (buf) == size - 8);
+  fail_unless (memcmp (GST_BUFFER_DATA (buf), seq, GST_BUFFER_SIZE (buf)) == 0);
+
+  gst_caps_unref (caps);
+}
+
+GST_START_TEST (test_parse_detect_stream_mpeg2)
+{
+  mpeg_video_parse_check_caps (2, mpeg2_seq, sizeof (mpeg2_seq));
+}
+
+GST_END_TEST;
+
+
+GST_START_TEST (test_parse_detect_stream_mpeg1)
+{
+  mpeg_video_parse_check_caps (1, mpeg1_seq, sizeof (mpeg1_seq));
+}
+
+GST_END_TEST;
+
+
+GST_START_TEST (test_parse_gop_split)
+{
+  ctx_factory = GOP_SPLIT;
+  ctx_discard = 1;
+  gst_parser_test_normal (mpeg2_iframe, sizeof (mpeg2_iframe));
+  ctx_factory = "mpegvideoparse";
+  ctx_discard = 0;
+}
+
+GST_END_TEST;
+
+
+static Suite *
+mpegvideoparse_suite (void)
+{
+  Suite *s = suite_create ("mpegvideoparse");
+  TCase *tc_chain = tcase_create ("general");
+
+  suite_add_tcase (s, tc_chain);
+  tcase_add_test (tc_chain, test_parse_normal);
+  tcase_add_test (tc_chain, test_parse_drain_single);
+  tcase_add_test (tc_chain, test_parse_split);
+  tcase_add_test (tc_chain, test_parse_detect_stream_mpeg1);
+  tcase_add_test (tc_chain, test_parse_detect_stream_mpeg2);
+  tcase_add_test (tc_chain, test_parse_gop_split);
+
+  return s;
+}
+
+
+/*
+ * TODO:
+ *   - Both push- and pull-modes need to be tested
+ *      * Pull-mode & EOS
+ */
+
+int
+main (int argc, char **argv)
+{
+  int nf;
+
+  Suite *s = mpegvideoparse_suite ();
+  SRunner *sr = srunner_create (s);
+
+  gst_check_init (&argc, &argv);
+
+  /* init test context */
+  ctx_factory = "mpegvideoparse";
+  ctx_sink_template = &sinktemplate;
+  ctx_src_template = &srctemplate;
+  ctx_headers[0].data = mpeg2_seq;
+  ctx_headers[0].size = sizeof (mpeg2_seq);
+  ctx_verify_buffer = verify_buffer;
+  ctx_setup = setup_element;
+
+  srunner_run_all (sr, CK_NORMAL);
+  nf = srunner_ntests_failed (sr);
+  srunner_free (sr);
+
+  return nf;
+}