Cool_Tools/vgmstream
1
0
Fork 0
mirror of https://github.com/vgmstream/vgmstream.git synced 2025-02-25 22:38:11 +01:00
Code Issues Packages Projects Releases Wiki Activity

Formatting

Browse Source
This commit is contained in:
NicknineTheEagle 2024-11-12 23:27:48 +03:00
parent 02d3c3f875
commit 42842898dd
1 changed files with 63 additions and 63 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

126
src/meta/ubi_apm.c
View File

@ -3,83 +3,83 @@
/* .APM - seen in old Ubisoft games [Rayman 2: The Great Escape (PC), Donald Duck: Goin' Quackers (PC)] */ /* .APM - seen in old Ubisoft games [Rayman 2: The Great Escape (PC), Donald Duck: Goin' Quackers (PC)] */
VGMSTREAM* init_vgmstream_ubi_apm(STREAMFILE* sf) { VGMSTREAM* init_vgmstream_ubi_apm(STREAMFILE* sf) {
VGMSTREAM* vgmstream = NULL; VGMSTREAM* vgmstream = NULL;
uint32_t channels, sample_rate, file_size, nibble_size; uint32_t channels, sample_rate, file_size, nibble_size;
off_t start_offset; off_t start_offset;
int loop_flag; int loop_flag;
uint32_t i; uint32_t i;
if (read_u16le(0x00, sf) != 0x2000 || !is_id32be(0x14, sf, "vs12")) if (read_u16le(0x00, sf) != 0x2000 || !is_id32be(0x14, sf, "vs12"))
goto fail; goto fail;
if (!check_extensions(sf, "apm")) if (!check_extensions(sf, "apm"))
goto fail; goto fail;
/* (info from https://github.com/Synthesis/ray2get) /* (info from https://github.com/Synthesis/ray2get)
* 0x00(2): format tag (0x2000 for Ubisoft ADPCM) * 0x00(2): format tag (0x2000 for Ubisoft ADPCM)
* 0x02(2): channels * 0x02(2): channels
* 0x04(4): sample rate * 0x04(4): sample rate
* 0x08(4): byte rate? PCM samples? * 0x08(4): byte rate? PCM samples?
* 0x0C(2): block align * 0x0C(2): block align
* 0x0E(2): bits per sample * 0x0E(2): bits per sample
* 0x10(4): header size * 0x10(4): header size
* 0x14(4): "vs12" * 0x14(4): "vs12"
* 0x18(4): file size * 0x18(4): file size
* 0x1C(4): nibble size * 0x1C(4): nibble size
* 0x20(4): -1? * 0x20(4): -1?
* 0x24(4): 0? * 0x24(4): 0?
* 0x28(4): high/low nibble flag (when loaded in memory) * 0x28(4): high/low nibble flag (when loaded in memory)
* 0x2C(N): ADPCM info per channel, last to first * 0x2C(N): ADPCM info per channel, last to first
* - 0x00(4): ADPCM hist * - 0x00(4): ADPCM hist
* - 0x04(4): ADPCM step index * - 0x04(4): ADPCM step index
* - 0x08(4): copy of ADPCM data (after interleave, ex. R from data + 0x01) * - 0x08(4): copy of ADPCM data (after interleave, ex. R from data + 0x01)
* 0x60(4): "DATA" * 0x60(4): "DATA"
* 0x64(N): ADPCM data * 0x64(N): ADPCM data
*/ */
channels = read_u16le(0x02, sf); channels = read_u16le(0x02, sf);
sample_rate = read_u32le(0x04, sf); sample_rate = read_u32le(0x04, sf);
file_size = read_u32le(0x18, sf); file_size = read_u32le(0x18, sf);
nibble_size = read_u32le(0x1c, sf); nibble_size = read_u32le(0x1c, sf);
start_offset = 0x64; start_offset = 0x64;
if (file_size != get_streamfile_size(sf)) if (file_size != get_streamfile_size(sf))
goto fail; goto fail;
if (nibble_size > (file_size - start_offset)) if (nibble_size > (file_size - start_offset))
goto fail; goto fail;
if (!is_id32be(0x60, sf, "DATA")) if (!is_id32be(0x60, sf, "DATA"))
goto fail; goto fail;
loop_flag = 0; loop_flag = 0;
/* build the VGMSTREAM */ /* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channels, loop_flag); vgmstream = allocate_vgmstream(channels, loop_flag);
if (!vgmstream) goto fail; if (!vgmstream) goto fail;
vgmstream->meta_type = meta_UBI_APM; vgmstream->meta_type = meta_UBI_APM;
vgmstream->coding_type = coding_DVI_IMA_int; vgmstream->coding_type = coding_DVI_IMA_int;
vgmstream->layout_type = layout_interleave; vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x01; vgmstream->interleave_block_size = 0x01;
vgmstream->sample_rate = sample_rate; vgmstream->sample_rate = sample_rate;
vgmstream->num_samples = ima_bytes_to_samples(file_size - start_offset, channels); vgmstream->num_samples = ima_bytes_to_samples(file_size - start_offset, channels);
/* read initial hist (last to first) */ /* read initial hist (last to first) */
for (i = 0; i < channels; i++) { for (i = 0; i < channels; i++) {
vgmstream->ch[i].adpcm_history1_32 = read_s32le(0x2c + 0x0c * (channels - 1 - i) + 0x00, sf); vgmstream->ch[i].adpcm_history1_32 = read_s32le(0x2c + 0x0c * (channels - 1 - i) + 0x00, sf);
vgmstream->ch[i].adpcm_step_index = read_s32le(0x2c + 0x0c * (channels - 1 - i) + 0x04, sf); vgmstream->ch[i].adpcm_step_index = read_s32le(0x2c + 0x0c * (channels - 1 - i) + 0x04, sf);
} }
//todo supposedly APM IMA removes lower 3b after assigning step, but wave looks a bit off (Rayman 2 only?): //todo supposedly APM IMA removes lower 3b after assigning step, but wave looks a bit off (Rayman 2 only?):
// ...; step = adpcm_table[step_index]; delta = (step >> 3); step &= (~7); ... // ...; step = adpcm_table[step_index]; delta = (step >> 3); step &= (~7); ...
if (!vgmstream_open_stream(vgmstream, sf, start_offset)) if (!vgmstream_open_stream(vgmstream, sf, start_offset))
goto fail; goto fail;
return vgmstream; return vgmstream;
fail: fail:
close_vgmstream(vgmstream); close_vgmstream(vgmstream);
return NULL; return NULL;
} }