bitbuffer.c

这是著名的TCPMP播放器在WINDWOWS,和WINCE下编译通过的源程序.笔者对其中的LIBMAD库做了针对ARM MPU的优化. 并增加了词幕功能.

/* test_libFLAC - Unit tester for libFLAC
 * Copyright (C) 2000,2001,2002,2003,2004,2005  Josh Coalson
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#include "FLAC/assert.h"
#include "private/bitbuffer.h" /* from the libFLAC private include area */
#include <stdio.h>
#include <string.h> /* for memcmp() */

/* adjust for compilers that can't understand using LLU suffix for uint64_t literals */
#ifdef _MSC_VER
#define FLAC__U64L(x) x
#else
#define FLAC__U64L(x) x##LLU
#endif

/*
 * WATCHOUT!  Since FLAC__BitBuffer is a private structure, we use a copy of
 * the definition here to get at the internals.  Make sure this is kept up
 * to date with what is in ../libFLAC/bitbuffer.c
 */
struct FLAC__BitBuffer {
	FLAC__blurb *buffer;
	unsigned capacity; /* in blurbs */
	unsigned blurbs, bits;
	unsigned total_bits; /* must always == FLAC__BITS_PER_BLURB*blurbs+bits */
	unsigned consumed_blurbs, consumed_bits;
	unsigned total_consumed_bits; /* must always == FLAC__BITS_PER_BLURB*consumed_blurbs+consumed_bits */
	FLAC__uint16 read_crc16;
#if FLAC__BITS_PER_BLURB == 32
	unsigned crc16_align;
#endif
	FLAC__blurb save_head, save_tail;
};


static FLAC__bool dummy_read_callback(FLAC__byte buffer[], unsigned *bytes, void *client_data)
{
	(void)buffer, (void)bytes, (void)client_data;
	return true;
}

FLAC__bool test_bitbuffer()
{
	FLAC__BitBuffer *bb, *bb_zero, *bb_one, *bbcopy;
	FLAC__bool ok;
	unsigned i, j;
	static FLAC__byte test_pattern1[19] = { 0xaa, 0xf0, 0xaa, 0xbe, 0xaa, 0xaa, 0xaa, 0xa8, 0x30, 0x0a, 0xaa, 0xaa, 0xaa, 0xad, 0xea, 0xdb, 0xee, 0xfa, 0xce };

	FLAC__ASSERT(FLAC__BITS_PER_BLURB == 8);

	printf("\n+++ libFLAC unit test: bitbuffer\n\n");

	/*
	 * test new -> delete
	 */
	printf("testing new... ");
	bb = FLAC__bitbuffer_new();
	if(0 == bb) {
		printf("FAILED, returned NULL\n");
		return false;
	}
	printf("OK\n");

	printf("testing delete... ");
	FLAC__bitbuffer_delete(bb);
	printf("OK\n");

	/*
	 * test new -> init -> delete
	 */
	printf("testing new... ");
	bb = FLAC__bitbuffer_new();
	if(0 == bb) {
		printf("FAILED, returned NULL\n");
		return false;
	}
	printf("OK\n");

	printf("testing init... ");
	FLAC__bitbuffer_init(bb);
	if(0 == bb) {
		printf("FAILED, returned NULL\n");
		return false;
	}
	printf("OK\n");

	printf("testing delete... ");
	FLAC__bitbuffer_delete(bb);
	printf("OK\n");

	/*
	 * test new -> init -> clear -> delete
	 */
	printf("testing new... ");
	bb = FLAC__bitbuffer_new();
	if(0 == bb) {
		printf("FAILED, returned NULL\n");
		return false;
	}
	printf("OK\n");

	printf("testing init... ");
	FLAC__bitbuffer_init(bb);
	if(0 == bb) {
		printf("FAILED, returned NULL\n");
		return false;
	}
	printf("OK\n");

	printf("testing clear... ");
	FLAC__bitbuffer_clear(bb);
	if(0 == bb) {
		printf("FAILED, returned NULL\n");
		return false;
	}
	printf("OK\n");

	printf("testing delete... ");
	FLAC__bitbuffer_delete(bb);
	printf("OK\n");

	/*
	 * test normal usage
	 */
	printf("testing new... ");
	bb = FLAC__bitbuffer_new();
	bb_zero = FLAC__bitbuffer_new();
	bb_one = FLAC__bitbuffer_new();
	bbcopy = FLAC__bitbuffer_new();
	if(0 == bb || 0 == bb_zero || 0 == bb_one || 0 == bbcopy) {
		printf("FAILED, returned NULL\n");
		return false;
	}
	printf("OK\n");

	printf("testing init... ");
	ok = FLAC__bitbuffer_init(bb) && FLAC__bitbuffer_init(bb_zero) && FLAC__bitbuffer_init(bb_one) && FLAC__bitbuffer_init(bbcopy);
	printf("%s\n", ok?"OK":"FAILED");
	if(!ok)
		return false;

	printf("testing clear... ");
	ok = FLAC__bitbuffer_clear(bb) && FLAC__bitbuffer_clear(bb_zero) && FLAC__bitbuffer_clear(bb_one) && FLAC__bitbuffer_clear(bbcopy);
	printf("%s\n", ok?"OK":"FAILED");
	if(!ok)
		return false;

	printf("setting up bb_one... ");
	ok = FLAC__bitbuffer_write_raw_uint32(bb_one, 1, 7) && FLAC__bitbuffer_read_raw_uint32(bb_one, &i, 6, dummy_read_callback, 0);
	printf("%s\n", ok?"OK":"FAILED");
	if(!ok)
		return false;
	FLAC__bitbuffer_dump(bb_one, stdout);

	printf("capacity = %u\n", bb->capacity);

	printf("testing zeroes, raw_uint32*... ");
	ok =
		FLAC__bitbuffer_write_raw_uint32(bb, 0x1, 1) &&
		FLAC__bitbuffer_write_raw_uint32(bb, 0x1, 2) &&
		FLAC__bitbuffer_write_raw_uint32(bb, 0xa, 5) &&
		FLAC__bitbuffer_write_raw_uint32(bb, 0xf0, 8) &&
		FLAC__bitbuffer_write_raw_uint32(bb, 0x2aa, 10) &&
		FLAC__bitbuffer_write_raw_uint32(bb, 0xf, 4) &&
		FLAC__bitbuffer_write_raw_uint32(bb, 0xaaaaaaaa, 32) &&
		FLAC__bitbuffer_write_zeroes(bb, 4) &&
		FLAC__bitbuffer_write_raw_uint32(bb, 0x3, 2) &&
		FLAC__bitbuffer_write_zeroes(bb, 8) &&
		FLAC__bitbuffer_write_raw_uint64(bb, FLAC__U64L(0xaaaaaaaadeadbeef), 64) &&
		FLAC__bitbuffer_write_raw_uint32(bb, 0xace, 12)
	;
	if(!ok) {
		printf("FAILED\n");
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->blurbs != sizeof(test_pattern1)) {
		printf("FAILED byte count %u != %u\n", bb->blurbs, (unsigned)sizeof(test_pattern1));
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->bits != 0) {
		printf("FAILED bit count %u != 0\n", bb->bits);
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->total_bits != 8*bb->blurbs+bb->bits) {
		printf("FAILED total_bits count %u != %u (%u:%u)\n", bb->total_bits, 8*bb->blurbs+bb->bits, bb->blurbs, bb->bits);
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(memcmp(bb->buffer, test_pattern1, sizeof(FLAC__byte)*sizeof(test_pattern1)) != 0) {
		printf("FAILED pattern match\n");
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	printf("OK\n");
	FLAC__bitbuffer_dump(bb, stdout);

	printf("testing raw_uint32 some more... ");
	ok = FLAC__bitbuffer_write_raw_uint32(bb, 0x3d, 6);
	if(!ok) {
		printf("FAILED\n");
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->blurbs != sizeof(test_pattern1)) {
		printf("FAILED byte count %u != %u\n", bb->blurbs, (unsigned)sizeof(test_pattern1));
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->bits != 6) {
		printf("FAILED bit count %u != 6\n", bb->bits);
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->total_bits != 8*bb->blurbs+bb->bits) {
		printf("FAILED total_bits count %u != %u (%u:%u)\n", bb->total_bits, 8*bb->blurbs+bb->bits, bb->blurbs, bb->bits);
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(memcmp(bb->buffer, test_pattern1, sizeof(FLAC__byte)*sizeof(test_pattern1)) != 0 || bb->buffer[bb->blurbs] != 0x3d) {
		printf("FAILED pattern match\n");
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	printf("OK\n");
	FLAC__bitbuffer_dump(bb, stdout);

	printf("testing concatenate_aligned (bb_zero)... ");
	ok = FLAC__bitbuffer_concatenate_aligned(bb, bb_zero);
	if(!ok) {
		printf("FAILED\n");
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->blurbs != sizeof(test_pattern1)) {
		printf("FAILED byte count %u != %u\n", bb->blurbs, (unsigned)sizeof(test_pattern1));
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->bits != 6) {
		printf("FAILED bit count %u != 6\n", bb->bits);
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->total_bits != 8*bb->blurbs+bb->bits) {
		printf("FAILED total_bits count %u != %u (%u:%u)\n", bb->total_bits, 8*bb->blurbs+bb->bits, bb->blurbs, bb->bits);
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(memcmp(bb->buffer, test_pattern1, sizeof(FLAC__byte)*sizeof(test_pattern1)) != 0 || bb->buffer[bb->blurbs] != 0x3d) {
		printf("FAILED pattern match\n");
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	printf("OK\n");
	FLAC__bitbuffer_dump(bb, stdout);

	printf("testing concatenate_aligned (bb_one)... ");
	ok = FLAC__bitbuffer_concatenate_aligned(bb, bb_one);
	if(!ok) {
		printf("FAILED\n");
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->blurbs != sizeof(test_pattern1)) {
		printf("FAILED byte count %u != %u\n", bb->blurbs, (unsigned)sizeof(test_pattern1));
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->bits != 7) {
		printf("FAILED bit count %u != 7\n", bb->bits);
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->total_bits != 8*bb->blurbs+bb->bits) {
		printf("FAILED total_bits count %u != %u (%u:%u)\n", bb->total_bits, 8*bb->blurbs+bb->bits, bb->blurbs, bb->bits);
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(memcmp(bb->buffer, test_pattern1, sizeof(FLAC__byte)*sizeof(test_pattern1)) != 0 || bb->buffer[bb->blurbs] != 0x7b) {
		printf("FAILED pattern match\n");
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	printf("OK\n");
	FLAC__bitbuffer_dump(bb, stdout);

	printf("testing concatenate_aligned (bb_one again)... ");
	(void)FLAC__bitbuffer_write_raw_uint32(bb_one, 1, 1);
	(void)FLAC__bitbuffer_read_raw_uint32(bb_one, &i, 1, dummy_read_callback, 0);
	ok = FLAC__bitbuffer_concatenate_aligned(bb, bb_one);
	if(!ok) {
		printf("FAILED\n");
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->blurbs != sizeof(test_pattern1)+1) {
		printf("FAILED byte count %u != %u\n", bb->blurbs, (unsigned)sizeof(test_pattern1)+1);
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->bits != 0) {
		printf("FAILED bit count %u != 0\n", bb->bits);
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->total_bits != 8*bb->blurbs+bb->bits) {
		printf("FAILED total_bits count %u != %u (%u:%u)\n", bb->total_bits, 8*bb->blurbs+bb->bits, bb->blurbs, bb->bits);
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(memcmp(bb->buffer, test_pattern1, sizeof(FLAC__byte)*sizeof(test_pattern1)) != 0 || bb->buffer[bb->blurbs-1] != 0xf7) {
		printf("FAILED pattern match\n");
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	printf("OK\n");
	FLAC__bitbuffer_dump(bb, stdout);

	printf("testing concatenate_aligned (bb_four)... ");
	(void)FLAC__bitbuffer_clear(bb_one);
	(void)FLAC__bitbuffer_write_raw_uint32(bb_one, 8, 4);
	ok = FLAC__bitbuffer_concatenate_aligned(bb, bb_one);
	if(!ok) {
		printf("FAILED\n");
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->blurbs != sizeof(test_pattern1)+1) {
		printf("FAILED byte count %u != %u\n", bb->blurbs, (unsigned)sizeof(test_pattern1)+1);
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->bits != 4) {
		printf("FAILED bit count %u != 4\n", bb->bits);
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->total_bits != 8*bb->blurbs+bb->bits) {
		printf("FAILED total_bits count %u != %u (%u:%u)\n", bb->total_bits, 8*bb->blurbs+bb->bits, bb->blurbs, bb->bits);
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(memcmp(bb->buffer, test_pattern1, sizeof(FLAC__byte)*sizeof(test_pattern1)) != 0 || bb->buffer[bb->blurbs] != 0x08) {
		printf("FAILED pattern match\n");
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	printf("OK\n");
	FLAC__bitbuffer_dump(bb, stdout);

	printf("testing concatenate_aligned (bb_eight)... ");
	(void)FLAC__bitbuffer_read_raw_uint32(bb_one, &i, 4, dummy_read_callback, 0);
	(void)FLAC__bitbuffer_write_raw_uint32(bb_one, 0xaa, 8);
	ok = FLAC__bitbuffer_concatenate_aligned(bb, bb_one);
	if(!ok) {
		printf("FAILED\n");
		FLAC__bitbuffer_dump(bb, stdout);
		return false;
	}
	if(bb->blurbs != sizeof(test_pattern1)+2) {