diff options
Diffstat (limited to '3rdparty/flac/src/test_libFLAC/bitreader.c')
-rw-r--r-- | 3rdparty/flac/src/test_libFLAC/bitreader.c | 355 |
1 files changed, 355 insertions, 0 deletions
diff --git a/3rdparty/flac/src/test_libFLAC/bitreader.c b/3rdparty/flac/src/test_libFLAC/bitreader.c new file mode 100644 index 00000000000..d40bd1f2e14 --- /dev/null +++ b/3rdparty/flac/src/test_libFLAC/bitreader.c @@ -0,0 +1,355 @@ +/* test_libFLAC - Unit tester for libFLAC + * Copyright (C) 2000-2009 Josh Coalson + * Copyright (C) 2011-2023 Xiph.Org Foundation + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include "FLAC/assert.h" +#include "share/compat.h" +#include "private/bitreader.h" /* from the libFLAC private include area */ +#include "bitreader.h" +#include <stdio.h> +#include <string.h> /* for memcpy() */ + +/* + * WATCHOUT! Since FLAC__BitReader 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/bitreader.c + */ +#if (ENABLE_64_BIT_WORDS == 0) + +typedef FLAC__uint32 brword; +#define FLAC__BYTES_PER_WORD 4 +#define FLAC__BITS_PER_WORD 32 + +#else + +typedef FLAC__uint64 brword; +#define FLAC__BYTES_PER_WORD 8 +#define FLAC__BITS_PER_WORD 64 + +#endif + +struct FLAC__BitReader { + /* any partially-consumed word at the head will stay right-justified as bits are consumed from the left */ + /* any incomplete word at the tail will be left-justified, and bytes from the read callback are added on the right */ + brword *buffer; + uint32_t capacity; /* in words */ + uint32_t words; /* # of completed words in buffer */ + uint32_t bytes; /* # of bytes in incomplete word at buffer[words] */ + uint32_t consumed_words; /* #words ... */ + uint32_t consumed_bits; /* ... + (#bits of head word) already consumed from the front of buffer */ + uint32_t read_crc16; /* the running frame CRC */ + uint32_t crc16_offset; /* the number of words in the current buffer that should not be CRC'd */ + uint32_t crc16_align; /* the number of bits in the current consumed word that should not be CRC'd */ + FLAC__bool read_limit_set; /* whether reads are limited */ + uint32_t read_limit; /* the remaining size of what can be read */ + uint32_t last_seen_framesync; /* the location of the last seen framesync, if it is in the buffer, in bits from front of buffer */ + FLAC__BitReaderReadCallback read_callback; + void *client_data; +}; + +static FLAC__bool read_callback(FLAC__byte buffer[], size_t *bytes, void *data); + +static void FLAC__bitreader_dump(const FLAC__BitReader *br, FILE *out) +{ + uint32_t i, j; + if(br == 0) { + fprintf(out, "bitreader is NULL\n"); + } + else { + fprintf(out, "bitreader: capacity=%u words=%u bytes=%u consumed: words=%u, bits=%u\n", br->capacity, br->words, br->bytes, br->consumed_words, br->consumed_bits); + + for(i = 0; i < br->words; i++) { + fprintf(out, "%08X: ", i); + for(j = 0; j < FLAC__BITS_PER_WORD; j++) + if(i < br->consumed_words || (i == br->consumed_words && j < br->consumed_bits)) + fprintf(out, "."); + else + fprintf(out, "%01d", br->buffer[i] & ((brword)1 << (FLAC__BITS_PER_WORD-j-1)) ? 1:0); + fprintf(out, "\n"); + } + if(br->bytes > 0) { + fprintf(out, "%08X: ", i); + for(j = 0; j < br->bytes*8; j++) + if(i < br->consumed_words || (i == br->consumed_words && j < br->consumed_bits)) + fprintf(out, "."); + else + fprintf(out, "%01d", br->buffer[i] & ((brword)1 << (br->bytes*8-j-1)) ? 1:0); + fprintf(out, "\n"); + } + } +} + +FLAC__bool test_bitreader(void) +{ + FLAC__BitReader *br; + FLAC__bool ok; + uint32_t i; + uint32_t words, bits; /* what we think br->consumed_words and br->consumed_bits should be */ + + FLAC__uint16 crc,expected_crcs[4] = { 0x5e4c, 0x7f6b, 0x2272, 0x42bf }; + FLAC__byte data[32]; + + FLAC__uint32 val_uint32; + FLAC__uint64 val_uint64; + + for (i = 0; i < 32; i++) + data[i] = i * 8 + 7; + + printf("\n+++ libFLAC unit test: bitreader\n\n"); + + /* + * test new -> delete + */ + printf("testing new... "); + br = FLAC__bitreader_new(); + if(0 == br) { + printf("FAILED, returned NULL\n"); + return false; + } + printf("OK\n"); + + printf("testing delete... "); + FLAC__bitreader_delete(br); + printf("OK\n"); + + /* + * test new -> init -> delete + */ + printf("testing new... "); + br = FLAC__bitreader_new(); + if(0 == br) { + printf("FAILED, returned NULL\n"); + return false; + } + printf("OK\n"); + + printf("testing init... "); + if(!FLAC__bitreader_init(br, read_callback, data)) { + printf("FAILED, returned false\n"); + return false; + } + printf("OK\n"); + + printf("testing delete... "); + FLAC__bitreader_delete(br); + printf("OK\n"); + + /* + * test new -> init -> clear -> delete + */ + printf("testing new... "); + br = FLAC__bitreader_new(); + if(0 == br) { + printf("FAILED, returned NULL\n"); + return false; + } + printf("OK\n"); + + printf("testing init... "); + if(!FLAC__bitreader_init(br, read_callback, data)) { + printf("FAILED, returned false\n"); + return false; + } + printf("OK\n"); + + printf("testing clear... "); + if(!FLAC__bitreader_clear(br)) { + printf("FAILED, returned false\n"); + return false; + } + printf("OK\n"); + + printf("testing delete... "); + FLAC__bitreader_delete(br); + printf("OK\n"); + + /* + * test normal usage + */ + printf("testing new... "); + br = FLAC__bitreader_new(); + if(0 == br) { + printf("FAILED, returned NULL\n"); + return false; + } + printf("OK\n"); + + printf("testing init... "); + if(!FLAC__bitreader_init(br, read_callback, data)) { + printf("FAILED, returned false\n"); + return false; + } + printf("OK\n"); + + printf("testing clear... "); + if(!FLAC__bitreader_clear(br)) { + printf("FAILED, returned false\n"); + return false; + } + printf("OK\n"); + + words = bits = 0; + + printf("capacity = %u\n", br->capacity); + + printf("testing raw reads... "); + ok = + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 1) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 2) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 5) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 8) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 10) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 4) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 32) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 4) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 2) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 8) && + FLAC__bitreader_read_raw_uint64(br, &val_uint64, 64) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 12) + ; + if(!ok) { + printf("FAILED\n"); + FLAC__bitreader_dump(br, stdout); + return false; + } + /* we read 152 bits (=19 bytes) from the bitreader */ + words = 152 / FLAC__BITS_PER_WORD; + bits = 152 - words*FLAC__BITS_PER_WORD; + + if(br->consumed_words != words) { + printf("FAILED word count %u != %u\n", br->consumed_words, words); + FLAC__bitreader_dump(br, stdout); + return false; + } + if(br->consumed_bits != bits) { + printf("FAILED bit count %u != %u\n", br->consumed_bits, bits); + FLAC__bitreader_dump(br, stdout); + return false; + } + crc = FLAC__bitreader_get_read_crc16(br); + if(crc != expected_crcs[0]) { + printf("FAILED reported CRC 0x%04x does not match expected 0x%04x\n", crc, expected_crcs[0]); + FLAC__bitreader_dump(br, stdout); + return false; + } + printf("OK\n"); + FLAC__bitreader_dump(br, stdout); + + printf("testing CRC reset... "); + FLAC__bitreader_clear(br); + FLAC__bitreader_reset_read_crc16(br, 0xFFFF); + crc = FLAC__bitreader_get_read_crc16(br); + if(crc != 0xFFFF) { + printf("FAILED reported CRC 0x%04x does not match expected 0xFFFF\n", crc); + FLAC__bitreader_dump(br, stdout); + return false; + } + FLAC__bitreader_reset_read_crc16(br, 0); + crc = FLAC__bitreader_get_read_crc16(br); + if(crc != 0) { + printf("FAILED reported CRC 0x%04x does not match expected 0x0000\n", crc); + FLAC__bitreader_dump(br, stdout); + return false; + } + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 16); + FLAC__bitreader_reset_read_crc16(br, 0); + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 32); + crc = FLAC__bitreader_get_read_crc16(br); + if(crc != expected_crcs[1]) { + printf("FAILED reported CRC 0x%04x does not match expected 0x%04x\n", crc, expected_crcs[1]); + FLAC__bitreader_dump(br, stdout); + return false; + } + printf("OK\n"); + + printf("testing unaligned < 32 bit reads... "); + FLAC__bitreader_clear(br); + FLAC__bitreader_skip_bits_no_crc(br, 8); + FLAC__bitreader_reset_read_crc16(br, 0); + ok = + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 1) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 2) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 5) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 8) + ; + if(!ok) { + printf("FAILED\n"); + FLAC__bitreader_dump(br, stdout); + return false; + } + crc = FLAC__bitreader_get_read_crc16(br); + if(crc != expected_crcs[2]) { + printf("FAILED reported CRC 0x%04x does not match expected 0x%04x\n", crc, expected_crcs[2]); + FLAC__bitreader_dump(br, stdout); + return false; + } + printf("OK\n"); + FLAC__bitreader_dump(br, stdout); + + printf("testing unaligned < 64 bit reads... "); + FLAC__bitreader_clear(br); + FLAC__bitreader_skip_bits_no_crc(br, 8); + FLAC__bitreader_reset_read_crc16(br, 0); + ok = + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 1) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 2) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 5) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 8) && + FLAC__bitreader_read_raw_uint32(br, &val_uint32, 32) + ; + if(!ok) { + printf("FAILED\n"); + FLAC__bitreader_dump(br, stdout); + return false; + } + crc = FLAC__bitreader_get_read_crc16(br); + if(crc != expected_crcs[3]) { + printf("FAILED reported CRC 0x%04x does not match expected 0x%04x\n", crc, expected_crcs[3]); + FLAC__bitreader_dump(br, stdout); + return false; + } + printf("OK\n"); + FLAC__bitreader_dump(br, stdout); + + printf("testing free... "); + FLAC__bitreader_free(br); + printf("OK\n"); + + printf("testing delete... "); + FLAC__bitreader_delete(br); + printf("OK\n"); + + printf("\nPASSED!\n"); + return true; +} + +/*----------------------------------------------------------------------------*/ + +static FLAC__bool read_callback(FLAC__byte buffer[], size_t *bytes, void *data) +{ + if (*bytes > 32) + *bytes = 32; + + memcpy(buffer, data, *bytes); + + return true; +} |