mirror of
https://github.com/vgmstream/vgmstream.git
synced 2025-01-29 19:37:30 +01:00
Clean MUS ACM meta (move parse code to its own function)
This commit is contained in:
bnnm
parent
ce9a69aad1
commit
58c00577cf
@ -1,7 +1,5 @@
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#include "../vgmstream.h"
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#include "meta.h"
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#include "../util.h"
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#include "../streamfile.h"
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#include "../coding/coding.h"
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#include "../coding/acm_decoder.h"
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#include <stdlib.h>
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#include <string.h>
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@ -13,11 +11,94 @@
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#define DIRSEP '/'
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#endif
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#define NAME_LENGTH PATH_LIMIT
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static char** parse_mus(STREAMFILE *streamFile, int *out_file_count, int *out_loop_flag, int *out_loop_start_index, int *out_loop_end_index);
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static void clean_mus(char** mus_filenames, int file_count);
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/* .MUS - playlist for InterPlay games [Planescape: Torment (PC), Baldur's Gate -Enhanced Edition- (PC)] */
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VGMSTREAM * init_vgmstream_mus_acm(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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mus_acm_codec_data *data = NULL;
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int channel_count, loop_flag = 0, loop_start_index = -1, loop_end_index = -1;
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int32_t num_samples = 0, loop_start_samples = 0, loop_end_samples = 0;
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char** mus_filenames = NULL;
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int i, file_count = 0;
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/* checks */
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if (!check_extensions(streamFile, "mus"))
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goto fail;
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/* get file paths from the .MUS text file */
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mus_filenames = parse_mus(streamFile, &file_count, &loop_flag, &loop_start_index, &loop_end_index);
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if (!mus_filenames) goto fail;
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/* init decoder */
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data = init_acm(file_count);
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if (!data) goto fail;
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/* open each file */
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for (i = 0; i < file_count; i++) {
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ACMStream *acm_stream = NULL;
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if (acm_open_decoder(&acm_stream,streamFile,mus_filenames[i]) != ACM_OK)
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goto fail;
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data->files[i]=acm_stream;
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if (i==loop_start_index)
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loop_start_samples = num_samples;
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if (i==loop_end_index)
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loop_end_samples = num_samples;
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num_samples += data->files[i]->total_values / data->files[i]->info.channels;
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if (i > 0) {
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if (data->files[i]->info.channels != data->files[i-1]->info.channels ||
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data->files[i]->info.rate != data->files[i-1]->info.rate) goto fail;
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}
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}
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if (i==loop_end_index)
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loop_end_samples = num_samples;
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channel_count = data->files[0]->info.channels;
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vgmstream = allocate_vgmstream(channel_count,loop_flag);
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if (!vgmstream) goto fail;
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vgmstream->sample_rate = data->files[0]->info.rate;
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vgmstream->num_samples = num_samples;
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vgmstream->loop_start_sample = loop_start_samples;
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vgmstream->loop_end_sample = loop_end_samples;
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vgmstream->meta_type = meta_MUS_ACM;
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vgmstream->coding_type = coding_ACM;
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vgmstream->layout_type = layout_mus_acm;
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data->loop_start_file = loop_start_index;
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data->loop_end_file = loop_end_index;
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/*data->end_file = -1;*/
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vgmstream->codec_data = data;
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clean_mus(mus_filenames, file_count);
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return vgmstream;
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fail:
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clean_mus(mus_filenames, file_count);
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free_acm(data);
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close_vgmstream(vgmstream);
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return NULL;
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}
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/* .mus text file parsing */
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#define NAME_LENGTH PATH_LIMIT
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static int exists(char *filename, STREAMFILE *streamfile) {
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STREAMFILE * temp =
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streamfile->open(streamfile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
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STREAMFILE * temp = streamfile->open(streamfile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
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if (!temp) return 0;
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close_streamfile(temp);
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@ -91,57 +172,40 @@ fail:
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return 1;
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}
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/* MUS playlist for InterPlay ACM */
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VGMSTREAM * init_vgmstream_mus_acm(STREAMFILE *streamFile) {
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VGMSTREAM * vgmstream = NULL;
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ACMStream *acm_stream = NULL;
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mus_acm_codec_data *data = NULL;
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static char** parse_mus(STREAMFILE *streamFile, int *out_file_count, int *out_loop_flag, int *out_loop_start_index, int *out_loop_end_index) {
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char** names = NULL;
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char filename[NAME_LENGTH];
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char line_buffer[NAME_LENGTH];
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char * end_ptr;
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char name_base[NAME_LENGTH];
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char (*names)[NAME_LENGTH] = NULL;
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char dir_name[NAME_LENGTH];
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char subdir_name[NAME_LENGTH];
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int i;
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int loop_flag = 0;
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int channel_count;
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int file_count;
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size_t line_bytes;
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int whole_line_read = 0;
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off_t mus_offset = 0;
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int loop_end_index = -1;
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int loop_start_index = -1;
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int32_t loop_start_samples = -1;
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int32_t loop_end_samples = -1;
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int i;
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int loop_flag = 0, loop_start_index = -1, loop_end_index = -1;
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int32_t total_samples = 0;
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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("mus",filename_extension(filename))) goto fail;
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/* read file name base */
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line_bytes = get_streamfile_text_line(sizeof(line_buffer),line_buffer,
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mus_offset, streamFile, &whole_line_read);
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line_bytes = get_streamfile_text_line(sizeof(line_buffer),line_buffer, mus_offset, streamFile, &whole_line_read);
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if (!whole_line_read) goto fail;
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mus_offset += line_bytes;
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memcpy(name_base,line_buffer,sizeof(name_base));
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/* uppercase name_base */
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{
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int i;
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for (i=0;name_base[i];i++) name_base[i]=toupper(name_base[i]);
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int j;
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for (j=0;name_base[j];j++)
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name_base[j] = toupper(name_base[j]);
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}
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/*printf("name base: %s\n",name_base);*/
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/* read track entry count */
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line_bytes = get_streamfile_text_line(sizeof(line_buffer),line_buffer,
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mus_offset, streamFile, &whole_line_read);
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line_bytes = get_streamfile_text_line(sizeof(line_buffer),line_buffer, mus_offset, streamFile, &whole_line_read);
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if (!whole_line_read) goto fail;
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if (line_buffer[0] == '\0') goto fail;
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mus_offset += line_bytes;
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@ -149,24 +213,26 @@ VGMSTREAM * init_vgmstream_mus_acm(STREAMFILE *streamFile) {
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/* didn't parse whole line as an integer (optional opening whitespace) */
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if (*end_ptr != '\0') goto fail;
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/*printf("entries: %d\n",file_count);*/
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names = calloc(file_count,sizeof(names[0]));
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/* set names */
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names = calloc(file_count,sizeof(char*)); /* array of strings (size NAME_LENGTH) */
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if (!names) goto fail;
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for (i = 0; i < file_count; i++) {
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names[i] = calloc(1,sizeof(char)*NAME_LENGTH);
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if (!names[i]) goto fail;
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}
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dir_name[0]='\0';
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streamFile->get_name(streamFile,filename,sizeof(filename));
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concatn(sizeof(dir_name),dir_name,filename);
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/* find directory name for the directory contianing the MUS */
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{
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/* find directory name for the directory contianing the MUS */
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char * last_slash;
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last_slash = strrchr(dir_name,DIRSEP);
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char * last_slash = strrchr(dir_name,DIRSEP);
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if (last_slash != NULL) {
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/* trim off the file name */
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last_slash[1]='\0';
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last_slash[1]='\0'; /* trim off the file name */
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} else {
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/* no dir name? annihilate! */
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dir_name[0] = '\0';
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dir_name[0] = '\0'; /* no dir name? annihilate! */
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}
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}
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@ -180,7 +246,8 @@ VGMSTREAM * init_vgmstream_mus_acm(STREAMFILE *streamFile) {
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char loop_name_temp[NAME_LENGTH];
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char loop_name_base[NAME_LENGTH];
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char loop_name[NAME_LENGTH];
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for (i=0;i<file_count;i++)
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for (i = 0; i < file_count; i++)
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{
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int fields_matched;
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line_bytes =
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@ -192,7 +259,6 @@ VGMSTREAM * init_vgmstream_mus_acm(STREAMFILE *streamFile) {
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fields_matched = sscanf(line_buffer,"%s %s %s",name,
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loop_name_base_temp,loop_name_temp);
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if (fields_matched < 1) goto fail;
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if (fields_matched == 3 && loop_name_base_temp[0] != '@' && loop_name_temp[0] != '@')
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{
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@ -222,14 +288,15 @@ VGMSTREAM * init_vgmstream_mus_acm(STREAMFILE *streamFile) {
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{
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/* uppercase */
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int j;
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for (j=0;j<strlen(name);j++) name[j]=toupper(name[j]);
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for (j=0;j<strlen(name);j++)
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name[j]=toupper(name[j]);
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}
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/* try looking in the common directory */
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names[i][0] = '\0';
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concatn(sizeof(names[0]),names[i],dir_name);
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concatn(sizeof(names[0]),names[i],name);
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concatn(sizeof(names[0]),names[i],".ACM");
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concatn(NAME_LENGTH,names[i],dir_name);
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concatn(NAME_LENGTH,names[i],name);
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concatn(NAME_LENGTH,names[i],".ACM");
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if (!exists(names[i],streamFile)) {
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@ -242,16 +309,14 @@ VGMSTREAM * init_vgmstream_mus_acm(STREAMFILE *streamFile) {
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}
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names[i][0] = '\0';
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concatn(sizeof(names[0]),names[i],dir_name);
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concatn(sizeof(names[0]),names[i],subdir_name);
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concatn(sizeof(names[0]),names[i],name_base);
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concatn(sizeof(names[0]),names[i],name);
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concatn(sizeof(names[0]),names[i],".ACM");
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concatn(NAME_LENGTH,names[i],dir_name);
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concatn(NAME_LENGTH,names[i],subdir_name);
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concatn(NAME_LENGTH,names[i],name_base);
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concatn(NAME_LENGTH,names[i],name);
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concatn(NAME_LENGTH,names[i],".ACM");
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if (!exists(names[i],streamFile)) goto fail;
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}
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/*printf("%2d %s\n",i,names[i]);*/
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}
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if (loop_end_index != -1) {
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@ -263,18 +328,15 @@ VGMSTREAM * init_vgmstream_mus_acm(STREAMFILE *streamFile) {
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concatn(sizeof(target_name),target_name,loop_name_base);
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concatn(sizeof(target_name),target_name,loop_name);
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concatn(sizeof(target_name),target_name,".ACM");
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/*printf("looking for loop %s\n",target_name);*/
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for (i=0;i<file_count;i++) {
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if (!strcmp(target_name,names[i]))
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{
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if (!strcmp(target_name,names[i])) {
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loop_start_index = i;
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break;
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}
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}
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if (loop_start_index != -1) {
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/*printf("loop from %d to %d\n",loop_end_index,loop_start_index);*/
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/*if (loop_start_index < file_count-1) loop_start_index++;*/
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loop_end_index++;
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loop_flag = 1;
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@ -283,78 +345,25 @@ VGMSTREAM * init_vgmstream_mus_acm(STREAMFILE *streamFile) {
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}
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}
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/* set up the struct to track the files */
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data = calloc(1,sizeof(mus_acm_codec_data));
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if (!data) goto fail;
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*out_loop_start_index = loop_start_index;
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*out_loop_end_index = loop_end_index;
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*out_loop_flag = loop_flag;
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*out_file_count = file_count;
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data->files = calloc(file_count,sizeof(ACMStream *));
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if (!data->files) {
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free(data); data = NULL;
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goto fail;
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}
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/* open each file... */
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for (i=0;i<file_count;i++) {
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/* gonna do this a little backwards, open and parse the file
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before creating the vgmstream */
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if (acm_open_decoder(&acm_stream,streamFile,names[i]) != ACM_OK) {
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goto fail;
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}
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data->files[i]=acm_stream;
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if (i==loop_start_index) loop_start_samples = total_samples;
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if (i==loop_end_index) loop_end_samples = total_samples;
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total_samples += acm_stream->total_values / acm_stream->info.channels;
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if (i>0) {
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if (acm_stream->info.channels != data->files[0]->info.channels ||
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acm_stream->info.rate != data->files[0]->info.rate) goto fail;
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}
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}
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if (i==loop_end_index) loop_end_samples = total_samples;
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channel_count = data->files[0]->info.channels;
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vgmstream = allocate_vgmstream(channel_count,loop_flag);
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if (!vgmstream) goto fail;
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vgmstream->channels = channel_count;
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vgmstream->sample_rate = data->files[0]->info.rate;
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vgmstream->coding_type = coding_ACM;
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vgmstream->num_samples = total_samples;
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vgmstream->loop_start_sample = loop_start_samples;
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vgmstream->loop_end_sample = loop_end_samples;
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vgmstream->layout_type = layout_mus_acm;
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vgmstream->meta_type = meta_MUS_ACM;
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data->file_count = file_count;
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data->current_file = 0;
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data->loop_start_file = loop_start_index;
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data->loop_end_file = loop_end_index;
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/*data->end_file = -1;*/
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vgmstream->codec_data = data;
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free(names);
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return vgmstream;
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/* clean up anything we may have opened */
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return names;
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fail:
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if (data) {
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int i;
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for (i=0;i<data->file_count;i++) {
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if (data->files[i]) {
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acm_close(data->files[i]);
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data->files[i] = NULL;
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}
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}
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}
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if (names) free(names);
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if (vgmstream) close_vgmstream(vgmstream);
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clean_mus(names, file_count);
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return NULL;
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}
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static void clean_mus(char** mus_filenames, int file_count) {
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int i;
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if (!mus_filenames) return;
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for (i = 0; i < file_count; i++) {
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free(mus_filenames[i]);
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}
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free(mus_filenames);
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}
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