codecparsers: mpeg: Add an mpeg video bitstream parsing library

Create a new codecparsers library

2 files changed, 218 insertions, 0 deletions

diff --git a/tests/check/Makefile.am b/tests/check/Makefile.am
index 174c73036..8528eb235 100644
--- a/tests/check/Makefile.am
+++ b/tests/check/Makefile.am
@@ -183,6 +183,7 @@ check_PROGRAMS = \
 	pipelines/colorspace \
 	$(check_mimic) \
 	elements/rtpmux \
+	libs/mpegvideoparser \
 	$(check_schro) \
 	$(check_vp8) \
         elements/viewfinderbin \
@@ -214,6 +215,15 @@ elements_h263parse_LDADD = libparser.la $(LDADD)
 
 elements_h264parse_LDADD = libparser.la $(LDADD)
 
+libs_mpegvideoparser_CFLAGS = \
+	$(GST_PLUGINS_BAD_CFLAGS) $(GST_PLUGINS_BASE_CFLAGS) \
+	$(GST_BASE_CFLAGS) $(GST_CFLAGS) $(AM_CFLAGS)
+
+libs_mpegvideoparser_LDADD = \
+	$(top_builddir)/gst-libs/gst/codecparsers/libgstcodecparsers-@GST_MAJORMINOR@.la \
+	$(GST_PLUGINS_BAD_LIBS) -lgstcodecparsers-@GST_MAJORMINOR@ \
+	$(GST_BASE_LIBS) $(GST_LIBS) $(LDADD)
+
 elements_voaacenc_CFLAGS = \
 	$(GST_PLUGINS_BASE_CFLAGS) \
 	$(GST_BASE_CFLAGS) $(GST_CFLAGS) $(AM_CFLAGS)
diff --git a/tests/check/libs/mpegvideoparser.c b/tests/check/libs/mpegvideoparser.c
new file mode 100644
index 000000000..414a45e23
--- /dev/null
+++ b/tests/check/libs/mpegvideoparser.c
@@ -0,0 +1,208 @@
+/* Gstreamer
+ * Copyright (C) <2011> Intel Corporation
+ * Copyright (C) <2011> Collabora Ltd.
+ * Copyright (C) <2011> Thibault Saunier <thibault.saunier@collabora.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 <gst/codecparsers/gstmpegvideoparser.h>
+
+/* actually seq + gop */
+static guint8 mpeg2_seq[] = {
+  0x00, 0x00, 0x01, 0xb3, 0x02, 0x00, 0x18, 0x15, 0xff, 0xff, 0xe0, 0x28,
+  0x00, 0x00, 0x01, 0xb3, 0x78, 0x04, 0x38, 0x37, 0xff, 0xff, 0xf0, 0x00,
+  0x00, 0x00, 0x01, 0xb5, 0x14, 0x8a, 0x00, 0x11, 0x03, 0x71,
+  0x00, 0x00, 0x01, 0xb8, 0x00, 0x08, 0x00, 0x00,
+  0x00, 0x00, 0x01, 0x03, 0x00, 0x08, 0x00, 0x00
+};
+
+static guint8 mis_identified_datas[] = {
+  0x00, 0x00, 0x01, 0x1f, 0x4a, 0xf4, 0xd4, 0xd8, 0x08, 0x23, 0xdd,
+  0x7c, 0xd3, 0x75, 0x21, 0x43, 0x85, 0x31, 0x43, 0x04, 0x24, 0x30,
+  0x18, 0x43, 0xba, 0x1a, 0x50, 0x60, 0xbb, 0x53, 0x56, 0x80, 0x41,
+  0xb9, 0xd4, 0x25, 0x42, 0xea, 0x71, 0xb7, 0x49, 0x84, 0x0b, 0x14,
+  0x24, 0xc2, 0xaa, 0xba, 0xf9, 0xf7, 0x5b, 0x78, 0xa2, 0xba, 0xd3,
+  0xc7, 0x12, 0xee, 0xbe, 0xba, 0xfa, 0xeb, 0xeb, 0xaf, 0xbe, 0x6f,
+  0xce, 0x92, 0x05, 0x15, 0x22, 0x44, 0xf4, 0xc9, 0x1b, 0xcd, 0x84,
+  0x80, 0x87, 0x35, 0x6c, 0x07, 0x82, 0xaf, 0x3c, 0x3a, 0x89, 0x48,
+  0x3a, 0x26, 0x00, 0x64, 0x03, 0x12, 0x60, 0x03, 0xf4, 0x8c, 0x21,
+  0x16, 0xbe, 0x3c, 0x7c, 0x18, 0x03, 0x10, 0x0c, 0x80, 0xa0, 0x05,
+  0xe1, 0x85, 0x94, 0x90, 0xc4, 0x74, 0x05, 0x72, 0x80, 0x7a, 0x8e,
+  0x3e, 0x00, 0x30,
+  /* The accelerated version of scan_for_start_codes()
+   * mis-identifies the following as a start code */
+  0x01, 0x00, 0x01, 0x80, 0x68, 0x14,
+  0x26, 0xe4, 0x80, 0x98, 0x0a, 0xba, 0x77, 0x01, 0xc2, 0x42, 0x12,
+  0xc4, 0x59, 0x2a, 0xbb, 0x49, 0xf2, 0xc5, 0xa8, 0xd9, 0x30, 0x33,
+  0x16, 0x50, 0x60, 0x61, 0x41, 0xaa, 0x0d, 0x41, 0x5b, 0x17, 0x77,
+  0x76, 0x1a, 0x14, 0x3a, 0x08, 0x19, 0x3d, 0x6c, 0x94, 0x55, 0xd0,
+  0x94, 0x5a, 0xeb, 0x61, 0x22, 0xa7, 0xa6, 0x83, 0x47, 0x6d, 0x4d,
+  0x84, 0xc4, 0x6f, 0x78, 0xd8, 0x3a, 0xb4, 0x02, 0x0c, 0x36, 0xa6,
+  0x0b, 0x18, 0x49, 0xf7, 0xad, 0x00, 0x82, 0x09, 0xba, 0x12, 0xba,
+  0x1d, 0x44, 0x94, 0x0a, 0x1b, 0x03, 0xbb, 0xa2, 0x53, 0x02, 0xc0,
+  0x41, 0xac, 0x22,
+  /* the real start code is here */
+  0x00, 0x00, 0x01, 0x20, 0x4a, 0xfd, 0xf5, 0x50
+};
+
+static GstMpegVideoPacketTypeCode ordercode[] = {
+  GST_MPEG_VIDEO_PACKET_SEQUENCE,
+  GST_MPEG_VIDEO_PACKET_EXTENSION,
+  GST_MPEG_VIDEO_PACKET_GOP,
+};
+
+GST_START_TEST (test_mpeg_parse)
+{
+  gint i;
+  GList *list, *tmp;
+  GstMpegVideoTypeOffsetSize *typeoffsz;
+
+  list = gst_mpeg_video_parse (mpeg2_seq, sizeof (mpeg2_seq), 12);
+
+  assert_equals_int (g_list_length (list), 4);
+  for (tmp = list, i = 0; tmp; tmp = g_list_next (tmp), i++) {
+    typeoffsz = tmp->data;
+    if (i == 3) {
+      fail_unless (GST_MPEG_VIDEO_PACKET_SLICE_MIN <= typeoffsz->type &&
+          typeoffsz->type <= GST_MPEG_VIDEO_PACKET_SLICE_MAX);
+      fail_unless (typeoffsz->size < 0);
+    } else
+      assert_equals_int (ordercode[i], typeoffsz->type);
+  }
+
+  g_list_free_full (list, (GDestroyNotify) g_free);
+}
+
+GST_END_TEST;
+
+GST_START_TEST (test_mpeg_parse_sequence_header)
+{
+  GList *list;
+  GstMpegVideoTypeOffsetSize *typeoffsz;
+  GstMpegVideoSequenceHdr seqhdr;
+
+  list = gst_mpeg_video_parse (mpeg2_seq, sizeof (mpeg2_seq), 12);
+
+  typeoffsz = list->data;
+  fail_unless (typeoffsz->type == GST_MPEG_VIDEO_PACKET_SEQUENCE);
+  fail_unless (gst_mpeg_video_parse_sequence_header (&seqhdr, mpeg2_seq,
+          sizeof (mpeg2_seq), typeoffsz->offset));
+  assert_equals_int (seqhdr.width, 1920);
+  assert_equals_int (seqhdr.height, 1080);
+  assert_equals_int (seqhdr.aspect_ratio_info, 3);
+  assert_equals_int (seqhdr.par_w, 17280);
+  assert_equals_int (seqhdr.par_h, 17280);
+  assert_equals_int (seqhdr.frame_rate_code, 7);
+  assert_equals_int (seqhdr.fps_n, 60000);
+  assert_equals_int (seqhdr.fps_d, 1001);
+  assert_equals_int (seqhdr.bitrate_value, 262143);
+  assert_equals_int (seqhdr.bitrate, 0);
+  assert_equals_int (seqhdr.vbv_buffer_size_value, 512);
+  fail_unless (seqhdr.constrained_parameters_flag == FALSE);
+
+  g_list_free_full (list, (GDestroyNotify) g_free);
+}
+
+GST_END_TEST;
+
+GST_START_TEST (test_mpeg_parse_sequence_extension)
+{
+  GList *list;
+  GstMpegVideoTypeOffsetSize *typeoffsz;
+  GstMpegVideoSequenceExt seqext;
+
+  list = gst_mpeg_video_parse (mpeg2_seq, sizeof (mpeg2_seq), 12);
+
+  typeoffsz = list->next->data;
+  fail_unless (typeoffsz->type == GST_MPEG_VIDEO_PACKET_EXTENSION);
+  fail_unless (gst_mpeg_video_parse_sequence_extension (&seqext,
+          mpeg2_seq, sizeof (mpeg2_seq), typeoffsz->offset));
+  assert_equals_int (seqext.profile, 4);
+  assert_equals_int (seqext.level, 8);
+  assert_equals_int (seqext.progressive, 1);
+  assert_equals_int (seqext.chroma_format, 1);
+  assert_equals_int (seqext.horiz_size_ext, 0);
+  assert_equals_int (seqext.vert_size_ext, 0);
+  assert_equals_int (seqext.vert_size_ext, 0);
+  assert_equals_int (seqext.bitrate_ext, 8);
+  assert_equals_int (seqext.vbv_buffer_size_extension, 3);
+  assert_equals_int (seqext.low_delay, 0);
+  assert_equals_int (seqext.fps_n_ext, 3);
+  assert_equals_int (seqext.fps_d_ext, 2);
+
+  g_list_free_full (list, (GDestroyNotify) g_free);
+}
+
+GST_END_TEST;
+
+GST_START_TEST (test_mis_identified_datas)
+{
+  GList *list, *tmp;
+  GstMpegVideoTypeOffsetSize *typeoffsz;
+  guint8 *data = mis_identified_datas;
+
+  list = gst_mpeg_video_parse (mis_identified_datas,
+      sizeof (mis_identified_datas), 0);
+
+  assert_equals_int (g_list_length (list), 2);
+  for (tmp = list; tmp; tmp = g_list_next (tmp)) {
+    typeoffsz = tmp->data;
+
+    assert_equals_int (data[typeoffsz->offset - 4], 0);
+    assert_equals_int (data[typeoffsz->offset - 3], 0);
+    assert_equals_int (data[typeoffsz->offset - 2], 1);
+  }
+
+  g_list_free_full (list, (GDestroyNotify) g_free);
+}
+
+GST_END_TEST;
+
+static Suite *
+videoparsers_suite (void)
+{
+  Suite *s = suite_create ("Video Parsers library");
+
+  TCase *tc_chain = tcase_create ("general");
+
+  suite_add_tcase (s, tc_chain);
+  tcase_add_test (tc_chain, test_mpeg_parse);
+  tcase_add_test (tc_chain, test_mpeg_parse_sequence_header);
+  tcase_add_test (tc_chain, test_mpeg_parse_sequence_extension);
+  tcase_add_test (tc_chain, test_mis_identified_datas);
+
+  return s;
+}
+
+int
+main (int argc, char **argv)
+{
+  int nf;
+
+  Suite *s = videoparsers_suite ();
+
+  SRunner *sr = srunner_create (s);
+
+  gst_check_init (&argc, &argv);
+
+  srunner_run_all (sr, CK_NORMAL);
+  nf = srunner_ntests_failed (sr);
+  srunner_free (sr);
+
+  return nf;
+}