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https://github.com/vgmstream/vgmstream.git
synced 2024-11-28 08:20:54 +01:00
Minor cleanup
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bnnm
parent
f0151cc26f
commit
7f240f4c45
@ -834,7 +834,7 @@ static const meta_info meta_info_list[] = {
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{meta_DSP_WSI, "Alone in the Dark .WSI header"},
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{meta_AIFC, "Apple AIFF-C (Audio Interchange File Format) header"},
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{meta_AIFF, "Apple AIFF (Audio Interchange File Format) header"},
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{meta_STR_SNDS, ".str SNDS SHDR chunk"},
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{meta_STR_SNDS, "3DO .str header"},
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{meta_WS_AUD, "Westwood Studios .aud header"},
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{meta_WS_AUD_old, "Westwood Studios .aud (old) header"},
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{meta_PS2_IVB, "IVB/BVII header"},
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@ -1,118 +1,98 @@
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#include "meta.h"
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#include "../coding/coding.h"
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#include "../layout/layout.h"
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#include "../util.h"
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/* 3DO format, .str extension and possibly a CTRL header, blocks and
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* AIFF-C style format specifier. Blocks are not IFF-compliant. Interesting
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* blocks are all SNDS
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*/
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/* .str - 3DO format with CTRL/SNDS/SHDR blocks [Icebreaker (3DO), Battle Pinball (3DO)] */
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VGMSTREAM * init_vgmstream_str_snds(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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char filename[PATH_LIMIT];
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off_t start_offset, shdr_offset = -1;
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int loop_flag, channel_count, found_shdr = 0;
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size_t file_size, ctrl_size = -1;
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int channel_count;
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int loop_flag = 0;
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off_t SHDR_offset = -1;
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int FoundSHDR = 0;
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int CTRL_size = -1;
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size_t file_size;
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/* checks */
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if (!check_extensions(streamFile, "str"))
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goto fail;
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/* check extension, case insensitive */
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streamFile->get_name(streamFile,filename,sizeof(filename));
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if (strcasecmp("str",filename_extension(filename))) goto fail;
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/* check for opening CTRL or SNDS chunk */
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if (read_32bitBE(0x0,streamFile) != 0x4354524c && /* CTRL */
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read_32bitBE(0x0,streamFile) != 0x534e4453 && // SNDS
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read_32bitBE(0x0,streamFile) != 0x53484452) // SHDR
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if (read_32bitBE(0x00,streamFile) != 0x4354524c && /* "CTRL" */
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read_32bitBE(0x00,streamFile) != 0x534e4453 && /* "SNDS" */
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read_32bitBE(0x00,streamFile) != 0x53484452) /* "SHDR" */
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goto fail;
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file_size = get_streamfile_size(streamFile);
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start_offset = 0x00;
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/* scan chunks until we find a SNDS containing a SHDR */
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{
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off_t current_chunk;
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off_t current_chunk = 0;
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current_chunk = 0;
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while (!FoundSHDR && current_chunk < file_size) {
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while (!found_shdr && current_chunk < file_size) {
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if (current_chunk < 0) goto fail;
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if (current_chunk+read_32bitBE(current_chunk+4,streamFile) >=
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file_size) goto fail;
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if (current_chunk+read_32bitBE(current_chunk+0x04,streamFile) >= file_size)
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goto fail;
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switch (read_32bitBE(current_chunk,streamFile))
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{
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case 0x4354524C: /* CTRL */
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switch (read_32bitBE(current_chunk,streamFile)) {
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case 0x4354524C: /* "CTRL" */
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ctrl_size = read_32bitBE(current_chunk+4,streamFile);
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break;
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case 0x534e4453: /* "SNDS" */
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switch (read_32bitBE(current_chunk+16,streamFile)) {
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case 0x53484452: /* SHDR */
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found_shdr = 1;
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shdr_offset = current_chunk+16;
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break;
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default:
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break;
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}
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break;
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case 0x53484452: /* "SHDR" */
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switch (read_32bitBE(current_chunk+0x7C, streamFile)) {
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case 0x4354524C: /* "CTRL" */
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/* to distinguish between styles */
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CTRL_size = read_32bitBE(current_chunk+4,streamFile);
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break;
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case 0x534e4453: /* SNDS */
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switch (read_32bitBE(current_chunk+16,streamFile))
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{
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case 0x53484452: /* SHDR */
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FoundSHDR = 1;
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SHDR_offset = current_chunk+16;
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ctrl_size = read_32bitBE(current_chunk + 0x80, streamFile);
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break;
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default:
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break;
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}
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break;
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case 0x53484452: /* SHDR */
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switch (read_32bitBE(current_chunk+0x7C, streamFile))
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{
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case 0x4354524C: /* CTRL */
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// to distinguish between styles
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CTRL_size = read_32bitBE(current_chunk + 0x80, streamFile);
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break;
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default:
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break;
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}
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break;
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default:
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/* ignore others for now */
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break;
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}
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current_chunk += read_32bitBE(current_chunk+4,streamFile);
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current_chunk += read_32bitBE(current_chunk+0x04,streamFile);
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}
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}
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if (!FoundSHDR) goto fail;
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if (!found_shdr) goto fail;
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/* details */
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channel_count = read_32bitBE(SHDR_offset+0x20,streamFile);
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channel_count = read_32bitBE(shdr_offset+0x20,streamFile);
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loop_flag = 0;
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/* build the VGMSTREAM */
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channel_count,loop_flag);
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if (!vgmstream) goto fail;
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/* fill in the vital statistics */
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if ((CTRL_size == 0x1C) ||
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(CTRL_size == 0x0B) ||
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(CTRL_size == -1))
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{
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vgmstream->num_samples =
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read_32bitBE(SHDR_offset+0x2c,streamFile)-1; /* sample count? */
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vgmstream->meta_type = meta_STR_SNDS;
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vgmstream->sample_rate = read_32bitBE(shdr_offset+0x1c,streamFile);
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if (ctrl_size == 0x1C || ctrl_size == 0x0B || ctrl_size == -1) {
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vgmstream->num_samples = read_32bitBE(shdr_offset+0x2c,streamFile) - 1; /* sample count? */
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}
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else {
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vgmstream->num_samples =
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read_32bitBE(SHDR_offset+0x2c,streamFile) /* frame count? */
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* 0x10;
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vgmstream->num_samples = read_32bitBE(shdr_offset+0x2c,streamFile) * 0x10; /* frame count? */
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}
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vgmstream->num_samples /= vgmstream->channels;
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vgmstream->num_samples/=vgmstream->channels;
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vgmstream->sample_rate = read_32bitBE(SHDR_offset+0x1c,streamFile);
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switch (read_32bitBE(SHDR_offset+0x24,streamFile)) {
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case 0x53445832: /* SDX2 */
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switch (read_32bitBE(shdr_offset+0x24,streamFile)) {
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case 0x53445832: /* "SDX2" */
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if (channel_count > 1) {
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vgmstream->coding_type = coding_SDX2_int;
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vgmstream->interleave_block_size = 1;
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@ -123,33 +103,12 @@ VGMSTREAM * init_vgmstream_str_snds(STREAMFILE *streamFile) {
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goto fail;
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}
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vgmstream->layout_type = layout_blocked_str_snds;
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vgmstream->meta_type = meta_STR_SNDS;
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/* channels and loop flag are set by allocate_vgmstream */
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if (loop_flag) {
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/* just guessin', no way to set loop flag anyway */
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vgmstream->loop_start_sample = 0;
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vgmstream->loop_end_sample = vgmstream->num_samples;
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}
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/* open the file for reading by each channel */
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{
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int i;
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vgmstream->ch[0].streamfile = streamFile->open(streamFile,filename,
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STREAMFILE_DEFAULT_BUFFER_SIZE);
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if (!vgmstream->ch[0].streamfile) goto fail;
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for (i=0;i<channel_count;i++) {
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vgmstream->ch[i].streamfile = vgmstream->ch[0].streamfile;
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}
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}
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/* start me up */
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block_update_str_snds(0,vgmstream);
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if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
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goto fail;
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return vgmstream;
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/* clean up anything we may have opened */
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fail:
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if (vgmstream) close_vgmstream(vgmstream);
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close_vgmstream(vgmstream);
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return NULL;
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}
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