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EAAC: Fixed size calculation

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This commit is contained in:
NicknineTheEagle 2020-02-25 21:52:14 +03:00
parent 437667b2dc
commit d0211e2d85
1 changed files with 29 additions and 22 deletions
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51
src/meta/ea_eaac.c
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@ -965,7 +965,7 @@ typedef struct {
static segmented_layout_data* build_segmented_eaaudiocore_looping(STREAMFILE *sf_data, eaac_header *eaac);
static layered_layout_data* build_layered_eaaudiocore(STREAMFILE *streamFile, eaac_header *eaac, off_t start_offset);
static STREAMFILE *setup_eaac_streamfile(eaac_header *ea, STREAMFILE *streamHead, STREAMFILE *streamData);
static size_t calculate_eaac_size(STREAMFILE *streamFile, eaac_header *ea, uint32_t num_samples, off_t start_offset);
static size_t calculate_eaac_size(STREAMFILE *streamFile, eaac_header *ea, uint32_t num_samples, off_t start_offset, int is_ram);
/* EA newest header from RwAudioCore (RenderWare?) / EAAudioCore library (still generated by sx.exe).
* Audio "assets" come in separate RAM headers (.SNR/SPH) and raw blocked streams (.SNS/SPS),
@ -1293,43 +1293,50 @@ fail:
return NULL;
}
static size_t calculate_eaac_size(STREAMFILE *streamFile, eaac_header *ea, uint32_t num_samples, off_t start_offset) {
uint32_t samples_parsed, block_size, block_samples;
static size_t calculate_eaac_size(STREAMFILE *streamFile, eaac_header *ea, uint32_t num_samples, off_t start_offset, int is_ram) {
uint32_t block_size;
uint8_t block_id;
size_t stream_size, file_size;
off_t block_offset;
int looped;
file_size = get_streamfile_size(streamFile);
block_offset = start_offset;
stream_size = 0, samples_parsed = 0;
stream_size = 0;
looped = 0;
while (block_offset < file_size && samples_parsed < num_samples) {
while (block_offset < file_size) {
block_id = read_8bit(block_offset, streamFile);
block_size = read_32bitBE(block_offset, streamFile) & 0x00FFFFFF;
/* stop when we reach the end marker */
if (ea->version == EAAC_VERSION_V0) {
if (block_id != EAAC_BLOCKID0_DATA && block_id != EAAC_BLOCKID0_END)
goto fail;
} else {
if (block_id != EAAC_BLOCKID1_DATA) {
if (block_id == EAAC_BLOCKID1_END && ea->codec == EAAC_CODEC_EATRAX) {
/* number of samples in block header is wrong for EATrax so stop when we reach end marker */
return stream_size;
}
if (block_id == EAAC_BLOCKID1_END)
break;
if (block_id != EAAC_BLOCKID1_DATA)
goto fail;
}
}
block_samples = read_32bitBE(block_offset + 0x04, streamFile);
stream_size += block_size;
samples_parsed += block_samples;
block_offset += block_size;
}
if (samples_parsed != num_samples)
goto fail;
/* RAM data only consists of one block */
if (is_ram)
break;
if (ea->version == EAAC_VERSION_V0 && block_id == EAAC_BLOCKID0_END) {
if (ea->loop_offset > 0) {
if (!looped) looped = 1;
else break;
} else {
break;
}
}
}
return stream_size;
@ -1348,7 +1355,7 @@ static STREAMFILE *setup_eaac_streamfile(eaac_header *ea, STREAMFILE *streamHead
switch (ea->type) {
case EAAC_TYPE_RAM:
/* both header and data in SNR */
data_size = calculate_eaac_size(streamHead, ea, ea->num_samples, ea->stream_offset);
data_size = calculate_eaac_size(streamHead, ea, ea->num_samples, ea->stream_offset, 1);
if (data_size == 0) goto fail;
new_streamFile = open_wrap_streamfile(streamHead);
@ -1361,7 +1368,7 @@ static STREAMFILE *setup_eaac_streamfile(eaac_header *ea, STREAMFILE *streamHead
break;
case EAAC_TYPE_STREAM:
/* header in SNR, data in SNS */
data_size = calculate_eaac_size(streamData, ea, ea->num_samples, ea->stream_offset);
data_size = calculate_eaac_size(streamData, ea, ea->num_samples, ea->stream_offset, 0);
if (data_size == 0) goto fail;
new_streamFile = open_wrap_streamfile(streamData);
@ -1375,7 +1382,7 @@ static STREAMFILE *setup_eaac_streamfile(eaac_header *ea, STREAMFILE *streamHead
case EAAC_TYPE_GIGASAMPLE:
/* header and prefetched data in SNR, rest of data in SNS */
/* open prefetched data */
data_size = calculate_eaac_size(streamHead, ea, ea->prefetch_samples, ea->prefetch_offset);
data_size = calculate_eaac_size(streamHead, ea, ea->prefetch_samples, ea->prefetch_offset, 1);
if (data_size == 0) goto fail;
new_streamFile = open_wrap_streamfile(streamHead);
@ -1387,7 +1394,7 @@ static STREAMFILE *setup_eaac_streamfile(eaac_header *ea, STREAMFILE *streamHead
stream_segments[0] = new_streamFile;
/* open main data */
data_size = calculate_eaac_size(streamData, ea, ea->num_samples - ea->prefetch_samples, ea->stream_offset);
data_size = calculate_eaac_size(streamData, ea, ea->num_samples - ea->prefetch_samples, ea->stream_offset, 0);
if (data_size == 0) goto fail;
new_streamFile = open_wrap_streamfile(streamData);
@ -1412,7 +1419,7 @@ static STREAMFILE *setup_eaac_streamfile(eaac_header *ea, STREAMFILE *streamHead
goto fail;
}
data_size = calculate_eaac_size(streamHead, ea, ea->num_samples, ea->stream_offset);
data_size = calculate_eaac_size(streamHead, ea, ea->num_samples, ea->stream_offset, ea->type == EAAC_TYPE_RAM);
if (data_size == 0) goto fail;
new_streamFile = open_wrap_streamfile(streamHead);