Commit 731b2948 authored by Mathis Rosenhauer's avatar Mathis Rosenhauer Committed by Thomas Jahns

splitting test

parent e85b4fe2
......@@ -5,20 +5,70 @@
#include <string.h>
#include "libaec.h"
#define BUF_SIZE 1024
#define BUF_SIZE 1024 * 3
struct test_state {
int id_len;
int byte_per_sample;
uint8_t *ubuf;
uint8_t *cbuf;
uint8_t *obuf;
size_t buf_len;
size_t cbuf_len;
void (*out)(uint8_t *dest, uint32_t val, int size);
};
static void out_lsb(uint8_t *dest, uint32_t val, int size)
{
int i;
for (i = 0; i < size; i++)
dest[i] = val >> (8 * i);
}
static void out_msb(uint8_t *dest, uint32_t val, int size)
{
int i;
for (i = 0; i < size; i++)
dest[i] = val >> (8 * (size - 1 - i));
}
static int update_state(struct aec_stream *strm, struct test_state *state)
{
if (strm->bit_per_sample > 16) {
state->id_len = 5;
if (strm->bit_per_sample <= 24 && strm->flags & AEC_DATA_3BYTE) {
state->byte_per_sample = 3;
} else {
state->byte_per_sample = 4;
}
}
else if (strm->bit_per_sample > 8) {
state->id_len = 4;
state->byte_per_sample = 2;
} else {
state->id_len = 3;
state->byte_per_sample = 1;
}
if (strm->flags & AEC_DATA_MSB)
state->out = out_msb;
else
state->out = out_lsb;
return 0;
}
int encode_decode(struct aec_stream *strm,
uint8_t *ubuf,
uint8_t *cbuf,
uint8_t *obuf,
size_t n)
int encode_decode(struct aec_stream *strm, struct test_state *state)
{
int status;
int status, i, to;
strm->avail_in = n;
strm->avail_out = n;
strm->next_in = ubuf;
strm->next_out = cbuf;
strm->avail_in = state->buf_len;
strm->avail_out = state->cbuf_len;
strm->next_in = state->ubuf;
strm->next_out = state->cbuf;
status = aec_encode_init(strm);
if (status != AEC_OK) {
......@@ -35,9 +85,10 @@ int encode_decode(struct aec_stream *strm,
aec_encode_end(strm);
strm->avail_in = strm->total_out;
strm->avail_out = n;
strm->next_in = cbuf;
strm->next_out = obuf;
strm->avail_out = state->buf_len;
strm->next_in = state->cbuf;
strm->next_out = state->obuf;
to = strm->total_out;
status = aec_decode_init(strm);
if (status != AEC_OK) {
......@@ -51,66 +102,137 @@ int encode_decode(struct aec_stream *strm,
return 99;
}
if (memcmp(ubuf, obuf, n)) {
if (memcmp(state->ubuf, state->obuf, state->buf_len)) {
printf("FAIL: Uncompressed output differs from input.\n");
printf("\nuncompressed buf");
for (i = 0; i < 80; i++) {
if (i % 8 == 0)
printf("\n");
printf("%02x ", state->ubuf[i]);
}
printf("\n\ncompressed buf len %i", to);
for (i = 0; i < 80; i++) {
if (i % 8 == 0)
printf("\n");
printf("%02x ", state->cbuf[i]);
}
printf("\n\ndecompressed buf");
for (i = 0; i < 80; i++) {
if (i % 8 == 0)
printf("\n");
printf("%02x ", state->obuf[i]);
}
printf("\n");
return 99;
}
aec_decode_end(strm);
return 0;
}
int check_zero(struct aec_stream *strm,
uint8_t *ubuf,
uint8_t *cbuf,
uint8_t *obuf,
size_t n)
int check_zero(struct aec_stream *strm, struct test_state *state)
{
int bs, status;
printf("Checking zero blocks with bit per sample %i ... ",
strm->bit_per_sample);
for (bs = 8; bs <= 64; bs *= 2) {
memset(ubuf, 0x55, n);
strm->bit_per_sample = 8;
memset(state->ubuf, 0x55, state->buf_len);
strm->block_size = bs;
strm->rsi = n / bs;
strm->flags = AEC_DATA_PREPROCESS;
printf("Checking zero blocks with block size %i ... ", bs);
strm->rsi = state->buf_len / (bs * state->byte_per_sample);
status = encode_decode(strm, ubuf, cbuf, obuf, n);
status = encode_decode(strm, state);
if (status)
return status;
if ((cbuf[0] & 0xf0) != 0) {
if ((state->cbuf[0] >> (8 - state->id_len)) != 0) {
printf("FAIL: Unexpected block created.\n");
return 99;
}
printf ("OK\n");
}
printf ("OK\n");
return 0;
}
int check_splitting(struct aec_stream *strm, struct test_state *state, int k)
{
int bs, status;
uint8_t *tmp;
size_t size;
size = state->byte_per_sample;
for (tmp = state->ubuf;
tmp < state->ubuf + state->buf_len;
tmp += 4 * state->byte_per_sample) {
state->out(tmp, (1ULL << (k - 1)) - 1, size);
state->out(tmp + size, 0, size);
state->out(tmp + 2 * size, (1ULL << (k + 1)) - 1, size);
state->out(tmp + 3 * size, 0, size);
}
printf("Checking splitting with k=%i, bit per sample %i ... ",
k, strm->bit_per_sample);
for (bs = 8; bs <= 64; bs *= 2) {
strm->block_size = bs;
strm->rsi = state->buf_len / (bs * state->byte_per_sample);
status = encode_decode(strm, state);
if (status)
return status;
if ((state->cbuf[0] >> (8 - state->id_len)) != k + 1) {
printf("FAIL: Unexpected block of size %i created %i.\n",
bs, state->cbuf[0] >> 5);
return 99;
}
}
printf ("OK\n");
return 0;
}
int main (void)
{
int status;
uint8_t *ubuf, *cbuf, *obuf;
int k, status, bps;
struct aec_stream strm;
struct test_state state;
state.buf_len = BUF_SIZE;
state.cbuf_len = 2 * BUF_SIZE;
ubuf = (uint8_t *)malloc(BUF_SIZE);
cbuf = (uint8_t *)malloc(BUF_SIZE);
obuf = (uint8_t *)malloc(BUF_SIZE);
state.ubuf = (uint8_t *)malloc(state.buf_len);
state.cbuf = (uint8_t *)malloc(state.cbuf_len);
state.obuf = (uint8_t *)malloc(state.buf_len);
if (!ubuf || !cbuf || !obuf) {
if (!state.ubuf || !state.cbuf || !state.obuf) {
printf("Not enough memory.\n");
return 99;
}
status = check_zero(&strm, ubuf, cbuf, obuf, BUF_SIZE);
if (status)
return status;
for (bps = 8; bps <= 32; bps += 8) {
strm.bit_per_sample = bps;
strm.flags = AEC_DATA_PREPROCESS;
if (bps == 24)
strm.flags |= AEC_DATA_3BYTE;
update_state(&strm, &state);
status = check_zero(&strm, &state);
if (status)
return status;
for (k = 1; k < bps - 2; k++) {
status = check_splitting(&strm, &state, k);
if (status)
return status;
}
}
free(ubuf);
free(cbuf);
free(obuf);
free(state.ubuf);
free(state.cbuf);
free(state.obuf);
return 0;
}
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