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253 lines
8.2 KiB
C
253 lines
8.2 KiB
C
/* GStreamer
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*
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* unit test for GstBitReader
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*
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* Copyright (C) <2008> Sebastian Dröge <sebastian.droege@collabora.co.uk>
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include <gst/check/gstcheck.h>
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#include <gst/base/gstbitreader.h>
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#ifndef fail_unless_equals_int64
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#define fail_unless_equals_int64(a, b) \
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G_STMT_START { \
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gint64 first = a; \
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gint64 second = b; \
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fail_unless(first == second, \
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"'" #a "' (%" G_GINT64_FORMAT ") is not equal to '" #b"' (%" \
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G_GINT64_FORMAT ")", first, second); \
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} G_STMT_END;
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#endif
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GST_START_TEST (test_initialization)
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{
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guint8 data[] = { 0x01, 0x02, 0x03, 0x04 };
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GstBuffer *buffer = gst_buffer_new ();
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GstBitReader reader = GST_BIT_READER_INIT (data, 4);
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GstBitReader *reader2;
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guint8 x = 0;
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guint8 *bdata;
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gsize bsize;
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gst_buffer_take_memory (buffer, gst_memory_new_wrapped (data, NULL, 4, 0, 4));
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fail_unless (gst_bit_reader_get_bits_uint8 (&reader, &x, 8));
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fail_unless_equals_int (x, 0x01);
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fail_unless (gst_bit_reader_get_bits_uint8 (&reader, &x, 8));
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fail_unless_equals_int (x, 0x02);
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memset (&reader, 0, sizeof (GstBitReader));
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gst_bit_reader_init (&reader, data, 4);
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fail_unless (gst_bit_reader_get_bits_uint8 (&reader, &x, 8));
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fail_unless_equals_int (x, 0x01);
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fail_unless (gst_bit_reader_get_bits_uint8 (&reader, &x, 8));
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fail_unless_equals_int (x, 0x02);
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bdata = gst_buffer_map (buffer, &bsize, NULL, GST_MAP_READ);
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gst_bit_reader_init (&reader, bdata, bsize);
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fail_unless (gst_bit_reader_get_bits_uint8 (&reader, &x, 8));
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fail_unless_equals_int (x, 0x01);
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fail_unless (gst_bit_reader_get_bits_uint8 (&reader, &x, 8));
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fail_unless_equals_int (x, 0x02);
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gst_buffer_unmap (buffer, bdata, bsize);
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reader2 = gst_bit_reader_new (data, 4);
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fail_unless (gst_bit_reader_get_bits_uint8 (reader2, &x, 8));
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fail_unless_equals_int (x, 0x01);
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fail_unless (gst_bit_reader_get_bits_uint8 (reader2, &x, 8));
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fail_unless_equals_int (x, 0x02);
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gst_bit_reader_free (reader2);
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bdata = gst_buffer_map (buffer, &bsize, NULL, GST_MAP_READ);
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reader2 = gst_bit_reader_new (bdata, bsize);
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fail_unless (gst_bit_reader_get_bits_uint8 (reader2, &x, 8));
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fail_unless_equals_int (x, 0x01);
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fail_unless (gst_bit_reader_get_bits_uint8 (reader2, &x, 8));
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fail_unless_equals_int (x, 0x02);
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gst_bit_reader_free (reader2);
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gst_buffer_unmap (buffer, bdata, bsize);
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gst_buffer_unref (buffer);
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}
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GST_END_TEST;
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#define GET_CHECK(reader, dest, bits, nbits, val) { \
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fail_unless (gst_bit_reader_get_bits_uint##bits (reader, &dest, nbits)); \
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fail_unless_equals_uint64 (dest, val); \
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}
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#define PEEK_CHECK(reader, dest, bits, nbits, val) { \
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fail_unless (gst_bit_reader_peek_bits_uint##bits (reader, &dest, nbits)); \
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fail_unless_equals_uint64 (dest, val); \
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}
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#define GET_CHECK_FAIL(reader, dest, bits, nbits) { \
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fail_if (gst_bit_reader_get_bits_uint##bits (reader, &dest, nbits)); \
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}
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#define PEEK_CHECK_FAIL(reader, dest, bits, nbits) { \
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fail_if (gst_bit_reader_peek_bits_uint##bits (reader, &dest, nbits)); \
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}
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GST_START_TEST (test_get_bits)
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{
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guint8 data[] = { 0x12, 0x34, 0x56, 0x78, 0x90, 0xab, 0xcd, 0xef,
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0xfe, 0xdc, 0xba, 0x09, 0x87, 0x65, 0x43, 0x21
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};
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GstBitReader reader = GST_BIT_READER_INIT (data, 16);
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guint8 a = 0;
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guint16 b = 0;
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guint32 c = 0;
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guint64 d = 0;
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/* 8 bit */
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GET_CHECK (&reader, a, 8, 8, 0x12);
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GET_CHECK (&reader, a, 8, 4, 0x03);
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GET_CHECK (&reader, a, 8, 4, 0x04);
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GET_CHECK (&reader, a, 8, 3, 0x02);
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GET_CHECK (&reader, a, 8, 1, 0x01);
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GET_CHECK (&reader, a, 8, 2, 0x01);
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GET_CHECK (&reader, a, 8, 2, 0x02);
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PEEK_CHECK (&reader, a, 8, 8, 0x78);
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PEEK_CHECK (&reader, a, 8, 8, 0x78);
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fail_unless (gst_bit_reader_skip (&reader, 8));
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PEEK_CHECK (&reader, a, 8, 8, 0x90);
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GET_CHECK (&reader, a, 8, 1, 0x01);
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GET_CHECK (&reader, a, 8, 1, 0x00);
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GET_CHECK (&reader, a, 8, 1, 0x00);
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GET_CHECK (&reader, a, 8, 1, 0x01);
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fail_unless (gst_bit_reader_skip (&reader, 4));
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fail_unless (gst_bit_reader_skip (&reader, 10 * 8));
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GET_CHECK (&reader, a, 8, 8, 0x21);
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GET_CHECK_FAIL (&reader, a, 8, 1);
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PEEK_CHECK_FAIL (&reader, a, 8, 1);
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/* 16 bit */
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gst_bit_reader_init (&reader, data, 16);
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GET_CHECK (&reader, b, 16, 16, 0x1234);
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PEEK_CHECK (&reader, b, 16, 13, 0x0acf);
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GET_CHECK (&reader, b, 16, 8, 0x56);
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GET_CHECK (&reader, b, 16, 4, 0x07);
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GET_CHECK (&reader, b, 16, 2, 0x02);
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GET_CHECK (&reader, b, 16, 2, 0x00);
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PEEK_CHECK (&reader, b, 16, 8, 0x90);
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fail_unless (gst_bit_reader_skip (&reader, 11 * 8));
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GET_CHECK (&reader, b, 16, 8, 0x21);
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GET_CHECK_FAIL (&reader, b, 16, 16);
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PEEK_CHECK_FAIL (&reader, b, 16, 16);
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/* 32 bit */
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gst_bit_reader_init (&reader, data, 16);
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GET_CHECK (&reader, c, 32, 32, 0x12345678);
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GET_CHECK (&reader, c, 32, 24, 0x90abcd);
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GET_CHECK (&reader, c, 32, 16, 0xeffe);
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GET_CHECK (&reader, c, 32, 8, 0xdc);
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GET_CHECK (&reader, c, 32, 4, 0x0b);
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GET_CHECK (&reader, c, 32, 2, 0x02);
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GET_CHECK (&reader, c, 32, 2, 0x02);
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PEEK_CHECK (&reader, c, 32, 8, 0x09);
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fail_unless (gst_bit_reader_skip (&reader, 3 * 8));
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GET_CHECK (&reader, c, 32, 15, 0x2190);
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GET_CHECK (&reader, c, 32, 1, 0x1);
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GET_CHECK_FAIL (&reader, c, 32, 1);
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/* 64 bit */
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gst_bit_reader_init (&reader, data, 16);
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GET_CHECK (&reader, d, 64, 64, G_GINT64_CONSTANT (0x1234567890abcdef));
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GET_CHECK (&reader, d, 64, 7, 0xfe >> 1);
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GET_CHECK (&reader, d, 64, 1, 0x00);
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GET_CHECK (&reader, d, 64, 24, 0xdcba09);
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GET_CHECK (&reader, d, 64, 32, 0x87654321);
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GET_CHECK_FAIL (&reader, d, 64, 32);
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}
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GST_END_TEST;
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#undef GET_CHECK
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#undef PEEK_CHECK
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#undef GET_CHECK_FAIL
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#undef PEEK_CHECK_FAIL
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GST_START_TEST (test_position_tracking)
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{
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guint8 data[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
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};
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GstBitReader reader = GST_BIT_READER_INIT (data, 16);
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guint8 a = 0;
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fail_unless_equals_int (gst_bit_reader_get_pos (&reader), 0);
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fail_unless_equals_int (gst_bit_reader_get_remaining (&reader), 16 * 8);
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fail_unless (gst_bit_reader_get_bits_uint8 (&reader, &a, 3));
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fail_unless_equals_int (gst_bit_reader_get_pos (&reader), 3);
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fail_unless_equals_int (gst_bit_reader_get_remaining (&reader), 16 * 8 - 3);
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fail_unless (gst_bit_reader_set_pos (&reader, 9));
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fail_unless_equals_int (gst_bit_reader_get_pos (&reader), 9);
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fail_unless_equals_int (gst_bit_reader_get_remaining (&reader), 16 * 8 - 9);
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fail_unless (gst_bit_reader_skip (&reader, 3));
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fail_unless_equals_int (gst_bit_reader_get_pos (&reader), 12);
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fail_unless_equals_int (gst_bit_reader_get_remaining (&reader), 16 * 8 - 12);
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fail_unless (gst_bit_reader_skip_to_byte (&reader));
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fail_unless_equals_int (gst_bit_reader_get_pos (&reader), 16);
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fail_unless_equals_int (gst_bit_reader_get_remaining (&reader), 16 * 8 - 16);
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fail_unless (gst_bit_reader_set_pos (&reader, 16 * 8));
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fail_unless_equals_int (gst_bit_reader_get_pos (&reader), 16 * 8);
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fail_unless_equals_int (gst_bit_reader_get_remaining (&reader), 0);
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fail_unless (gst_bit_reader_skip (&reader, 0));
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fail_if (gst_bit_reader_skip (&reader, 1));
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fail_unless (gst_bit_reader_skip_to_byte (&reader));
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}
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GST_END_TEST;
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static Suite *
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gst_bit_reader_suite (void)
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{
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Suite *s = suite_create ("GstBitReader");
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TCase *tc_chain = tcase_create ("general");
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suite_add_tcase (s, tc_chain);
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tcase_add_test (tc_chain, test_initialization);
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tcase_add_test (tc_chain, test_get_bits);
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tcase_add_test (tc_chain, test_position_tracking);
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return s;
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}
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GST_CHECK_MAIN (gst_bit_reader);
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