void test_read_int_and_uint() {
char* buffer_ptr = NULL;
size_t buffer_size = 0, pos = 0;
FILE* f = open_memstream(&buffer_ptr, &buffer_size);
ebml_element_uint(f, MKV_TimecodeScale, 0x0102030405060708);
ebml_element_int(f, MKV_TimecodeScale, -1000000);
ebml_element_int(f, MKV_TimecodeScale, 1000000);
fclose(f);
ebml_elem_t e = ebml_read_element(buffer_ptr, buffer_size, &pos);
check(e.id == MKV_TimecodeScale);
check_int(e.header_size, 3 + 1);
uint64_t uvalue = ebml_read_uint(e.data_ptr, e.data_size);
check_int(uvalue, 0x0102030405060708);
e = ebml_read_element(buffer_ptr, buffer_size, &pos);
check(e.id == MKV_TimecodeScale);
int64_t ivalue = ebml_read_int(e.data_ptr, e.data_size);
check_int(ivalue, -1000000);
e = ebml_read_element(buffer_ptr, buffer_size, &pos);
check(e.id == MKV_TimecodeScale);
ivalue = ebml_read_int(e.data_ptr, e.data_size);
check_int(ivalue, 1000000);
free(buffer_ptr);
}
static int
demux_mkv_read_block(FILE *s, mkv_demuxer_t *mkv_d)
{
uint64_t length, l;
int il, tmp;
uint64_t block_duration = 0, block_length = 0;
int64_t block_bref = 0, block_fref = 0;
uint8_t *block = NULL;
length = ebml_read_length (s, NULL);
while (length > 0)
{
switch (ebml_read_id (s, &il))
{
case MATROSKA_ID_BLOCKDURATION:
//puts("MATROSKA_ID_BLOCKDURATION");
block_duration = ebml_read_uint (s, &l);
if (block_duration == EBML_UINT_INVALID) {
if(block)
free(block);
return 0;
}
block_duration *= mkv_d->tc_scale / 1000000.0;
break;
case MATROSKA_ID_BLOCK:
//puts("MATROSKA_ID_BLOCK");
block_length = ebml_read_length (s, &tmp);
if(block)
free(block);
if (block_length > SIZE_MAX - AV_LZO_INPUT_PADDING) return 0;
block = (uint8_t *)malloc (block_length + AV_LZO_INPUT_PADDING);
if (!block)
{
return 0;
}
if (fread(block, 1, (size_t)block_length, s) != (size_t) block_length)
{
if(block)
free(block);
return 0;
}
l = tmp + block_length;
break;
case MATROSKA_ID_REFERENCEBLOCK:
//puts("MATROSKA_ID_REFERENCEBLOCK");
{
int64_t num = ebml_read_int (s, &l);
if (num == EBML_INT_INVALID) {
if(block)
free(block);
return 0;
}
if (num <= 0)
block_bref = num;
else
block_fref = num;
break;
}
case EBML_ID_INVALID:
//puts("EBML_ID_INVALID");
if(block)
free(block);
return 0;
default:
ebml_read_skip (s, &l);
break;
}
length -= l + il;
if (block)
{
handle_block (mkv_d, block, block_length,
block_duration, block_bref, block_fref, 0);
free (block);
block = NULL;
}
}
return 0;
}