Cool_Tools/vgmstream
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Fixes and tweaks

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This commit is contained in:
NicknineTheEagle 2019-11-10 16:19:44 +03:00
parent 1f356cde5e
commit c47a37daba
2 changed files with 57 additions and 46 deletions
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99
src/meta/ea_1snh.c
View File

@ -37,12 +37,13 @@ static int get_ea_1snh_ima_version(STREAMFILE* streamFile, off_t start_offset, c
VGMSTREAM * init_vgmstream_ea_1snh(STREAMFILE *streamFile) {
ea_header ea = { 0 };
off_t offset, eacs_offset;
VGMSTREAM *vgmstream = NULL;
/* checks */
/* .asf/as4: common,
* .lasf: fake for plugins
* .cnk: some PS games
* .cnk: some PS1 games
* .sng: fake for plugins (to mimic EA SCHl's common extension)
* .uv/tgq: some SAT games (video only?)
* .tgv: videos
@ -52,7 +53,7 @@ VGMSTREAM * init_vgmstream_ea_1snh(STREAMFILE *streamFile) {
offset = 0x00;
/* in videos, either TGVk or 1SNh block comes first */
/* in TGV videos, either TGVk or 1SNh block comes first */
if (read_32bitBE(0x00, streamFile) == 0x5447566B) { /* "TGVk" */
offset = read_32bitBE(0x04, streamFile);
} else if (read_32bitLE(0x00, streamFile) == 0x5447566B) { /* "kVGT" */
@ -64,17 +65,25 @@ VGMSTREAM * init_vgmstream_ea_1snh(STREAMFILE *streamFile) {
goto fail;
/* stream is divided into blocks/chunks: 1SNh=audio header, 1SNd=data xN, 1SNl=loop end, 1SNe=end.
* Video uses various blocks (TGVk/TGVf/etc) and sometimes alt audio blocks (SEAD/SNDC/SEND). */
* Video uses various blocks (TGVk/TGVf/MUVf/etc) and sometimes alt audio blocks (SEAD/SNDC/SEND). */
ea.is_sead = read_32bitBE(offset + 0x00, streamFile) == 0x53454144;
/* use block size as endian marker (Saturn = BE) */
ea.big_endian = guess_endianness32bit(offset + 0x04, streamFile);
eacs_offset = offset + 0x08; /* after 1SNh block id+size */
if (!parse_header(streamFile, &ea, eacs_offset))
goto fail;
return init_vgmstream_main(streamFile, &ea);
vgmstream = init_vgmstream_main(streamFile, &ea);
if (!vgmstream) goto fail;
if (ea.num_samples == 0) {
/* header does not specify number of samples, need to calculate it manually */
/* HACK: need to create vgmstream and then re-open it since we need it for blocked layout */
set_ea_1snh_num_samples(vgmstream, streamFile, &ea, 0);
close_vgmstream(vgmstream);
vgmstream = init_vgmstream_main(streamFile, &ea);
}
return vgmstream;
fail:
return NULL;
@ -174,13 +183,13 @@ static VGMSTREAM * init_vgmstream_main(STREAMFILE *streamFile, ea_header* ea) {
vgmstream->coding_type = coding_ULAW_int;
break;
case EA_CODEC_IMA: /* Need for Speed II (PC) */
case EA_CODEC_IMA: /* Need for Speed (PC) */
if (ea->bits && ea->bits != 2) goto fail; /* only in EACS */
vgmstream->coding_type = coding_DVI_IMA; /* stereo/mono, high nibble first */
vgmstream->codec_config = ea->codec_config;
break;
case EA_CODEC_PSX: /* Need for Speed (PS) */
case EA_CODEC_PSX: /* Need for Speed (PS1) */
vgmstream->coding_type = coding_PSX;
break;
@ -192,11 +201,6 @@ static VGMSTREAM * init_vgmstream_main(STREAMFILE *streamFile, ea_header* ea) {
if (!vgmstream_open_stream(vgmstream,streamFile,ea->data_offset))
goto fail;
if (ea->num_samples == 0) {
/* header does not specify number of samples, need to calculate it manually */
set_ea_1snh_num_samples(vgmstream, streamFile, ea, 0);
}
return vgmstream;
fail:
@ -205,12 +209,13 @@ fail:
}
static int parse_header(STREAMFILE* streamFile, ea_header* ea, off_t offset) {
/* audio header is always little endian in early games, use sample rate for detection */
/* audio header endianness doesn't always match block headers, use sample rate to detect */
int32_t (*read_32bit)(off_t,STREAMFILE*);
if (read_32bitBE(offset+0x00, streamFile) == 0x45414353) { /* "EACS" */
/* EACS subheader (PC, SAT) */
read_32bit = guess_endianness32bit(offset + 0x04, streamFile) ? read_32bitBE : read_32bitLE;
ea->big_endian = guess_endianness32bit(offset + 0x04, streamFile);
read_32bit = ea->big_endian ? read_32bitBE : read_32bitLE;
ea->sample_rate = read_32bit(offset+0x04, streamFile);
ea->bits = read_8bit(offset+0x08, streamFile);
@ -229,20 +234,10 @@ static int parse_header(STREAMFILE* streamFile, ea_header* ea, off_t offset) {
ea->codec_config = get_ea_1snh_ima_version(streamFile, 0x00, ea);
/* EACS banks with empty values exist but will be rejected later */
}
else if (ea->is_sead) {
/* alt subheader (found in some PC videos) */
read_32bit = guess_endianness32bit(offset + 0x00, streamFile) ? read_32bitBE : read_32bitLE;
ea->sample_rate = read_32bit(offset+0x00, streamFile);
ea->channels = read_32bit(offset+0x04, streamFile);
ea->codec = read_32bit(offset+0x08, streamFile);
if (ea->codec == EA_CODEC_IMA)
ea->codec_config = get_ea_1snh_ima_version(streamFile, 0x00, ea);
}
else if (read_32bitBE(offset + 0x00, streamFile) == 0x00) {
/* found in early videos, similar to EACS */
read_32bit = guess_endianness32bit(offset + 0x04, streamFile) ? read_32bitBE : read_32bitLE;
ea->big_endian = guess_endianness32bit(offset + 0x04, streamFile);
read_32bit = ea->big_endian ? read_32bitBE : read_32bitLE;
ea->sample_rate = read_32bit(offset + 0x04, streamFile);
ea->bits = read_8bit(offset + 0x08, streamFile);
@ -253,9 +248,22 @@ static int parse_header(STREAMFILE* streamFile, ea_header* ea, off_t offset) {
if (ea->codec == EA_CODEC_IMA)
ea->codec_config = get_ea_1snh_ima_version(streamFile, 0x00, ea);
}
else if (ea->is_sead) {
/* alt subheader (found in some PC videos) */
ea->big_endian = guess_endianness32bit(offset + 0x00, streamFile);
read_32bit = ea->big_endian ? read_32bitBE : read_32bitLE;
ea->sample_rate = read_32bit(offset+0x00, streamFile);
ea->channels = read_32bit(offset+0x04, streamFile);
ea->codec = read_32bit(offset+0x08, streamFile);
if (ea->codec == EA_CODEC_IMA)
ea->codec_config = get_ea_1snh_ima_version(streamFile, 0x00, ea);
}
else {
/* alt subheader (PS) */
read_32bit = guess_endianness32bit(offset + 0x00, streamFile) ? read_32bitBE : read_32bitLE;
/* alt subheader (PS1) */
ea->big_endian = guess_endianness32bit(offset + 0x00, streamFile);
read_32bit = ea->big_endian ? read_32bitBE : read_32bitLE;
ea->sample_rate = read_32bit(offset+0x00, streamFile);
ea->channels = read_8bit(offset+0x18, streamFile);
@ -279,26 +287,29 @@ static void set_ea_1snh_num_samples(VGMSTREAM *vgmstream, STREAMFILE *streamFile
while (vgmstream->next_block_offset < file_size) {
block_update_ea_1snh(vgmstream->next_block_offset, vgmstream);
block_id = read_32bit(vgmstream->current_block_offset, streamFile);
if (find_loop && vgmstream->current_block_offset == ea->loop_start_offset) {
vgmstream->loop_start_sample = num_samples;
vgmstream->loop_end_sample = ea->loop_end;
return;
}
if (block_id == 0x00000000 || block_id == 0xFFFFFFFF || block_id == 0x31534E65) { /* EOF or "1SNe" */
if (vgmstream->current_block_samples < 0)
break;
} else if (!find_loop && block_id == 0x31534E6C) { /* "1SNl" loop point found */
ea->loop_start_offset = read_32bit(vgmstream->current_block_offset + 0x08, streamFile);
ea->loop_end = num_samples;
loop_end_found = 1;
block_id = read_32bitBE(vgmstream->current_block_offset, streamFile);
if (find_loop) {
if (vgmstream->current_block_offset == ea->loop_start_offset) {
ea->loop_start = num_samples;
ea->loop_flag = 1;
block_update_ea_1snh(ea->data_offset, vgmstream);
return;
}
} else {
if (block_id == 0x31534E6C) { /* "1SNl" loop point found */
ea->loop_start_offset = read_32bit(vgmstream->current_block_offset + 0x08, streamFile);
ea->loop_end = num_samples;
loop_end_found = 1;
}
}
num_samples += vgmstream->current_block_samples;
}
vgmstream->num_samples = num_samples;
ea->num_samples = num_samples;
/* reset once we're done */
block_update_ea_1snh(ea->data_offset, vgmstream);

4
src/vgmstream.h
View File

@ -859,14 +859,14 @@ typedef struct {
int32_t samples_into_block; /* number of samples into the current block/interleave/segment/etc */
off_t current_block_offset; /* start of this block (offset of block header) */
size_t current_block_size; /* size in usable bytes of the block we're in now (used to calculate num_samples per block) */
size_t current_block_samples; /* size in samples of the block we're in now (used over current_block_size if possible) */
int32_t current_block_samples; /* size in samples of the block we're in now (used over current_block_size if possible) */
off_t next_block_offset; /* offset of header of the next block */
/* layout/block loop state */
int32_t loop_sample; /* saved from current_sample (same as loop_start_sample, but more state-like) */
int32_t loop_samples_into_block;/* saved from samples_into_block */
off_t loop_block_offset; /* saved from current_block_offset */
size_t loop_block_size; /* saved from current_block_size */
size_t loop_block_samples; /* saved from current_block_samples */
int32_t loop_block_samples; /* saved from current_block_samples */
off_t loop_next_block_offset; /* saved from next_block_offset */
/* loop state */