diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/decoder/gme_decoder_plugin.c | 122 |
1 files changed, 114 insertions, 8 deletions
diff --git a/src/decoder/gme_decoder_plugin.c b/src/decoder/gme_decoder_plugin.c index 4b6827a67..4a5220a3f 100644 --- a/src/decoder/gme_decoder_plugin.c +++ b/src/decoder/gme_decoder_plugin.c @@ -1,13 +1,21 @@ #include "config.h" #include "../decoder_api.h" #include "audio_check.h" +#include "uri.h" + #include <glib.h> #include <assert.h> +#include <errno.h> +#include <stdlib.h> +#include <string.h> + #include <gme/gme.h> #undef G_LOG_DOMAIN #define G_LOG_DOMAIN "gme" +#define SUBTUNE_PREFIX "tune_" + enum { GME_SAMPLE_RATE = 44100, GME_CHANNELS = 2, @@ -15,10 +23,91 @@ enum { GME_BUFFER_SAMPLES = GME_BUFFER_FRAMES * GME_CHANNELS, }; +/** + * returns the file path stripped of any /tune_xxx.* subtune + * suffix + */ +static char * +get_container_name(const char *path_fs) +{ + const char *subtune_suffix = uri_get_suffix(path_fs); + char *path_container = g_strdup(path_fs); + char *pat = g_strconcat("*/" SUBTUNE_PREFIX "???.", subtune_suffix, NULL); + GPatternSpec *path_with_subtune = g_pattern_spec_new(pat); + g_free(pat); + if (!g_pattern_match(path_with_subtune, + strlen(path_container), path_container, NULL)) { + g_pattern_spec_free(path_with_subtune); + return path_container; + } + + char *ptr = g_strrstr(path_container, "/" SUBTUNE_PREFIX); + if (ptr != NULL) + *ptr='\0'; + + g_pattern_spec_free(path_with_subtune); + return path_container; +} + +/** + * returns tune number from file.nsf/tune_xxx.* style path or 0 if no subtune + * is appended. + */ +static int +get_song_num(const char *path_fs) +{ + const char *subtune_suffix = uri_get_suffix(path_fs); + char *pat = g_strconcat("*/" SUBTUNE_PREFIX "???.", subtune_suffix, NULL); + GPatternSpec *path_with_subtune = g_pattern_spec_new(pat); + g_free(pat); + + if (g_pattern_match(path_with_subtune, + strlen(path_fs), path_fs, NULL)) { + char *sub = g_strrstr(path_fs, "/" SUBTUNE_PREFIX); + g_pattern_spec_free(path_with_subtune); + if(!sub) + return 0; + + sub += strlen("/" SUBTUNE_PREFIX); + int song_num = strtol(sub, NULL, 10); + + return song_num - 1; + } else { + g_pattern_spec_free(path_with_subtune); + return 0; + } +} + +static char * +gme_container_scan(const char *path_fs, const unsigned int tnum) +{ + Music_Emu *emu; + const char* gme_err; + unsigned int num_songs; + + gme_err = gme_open_file(path_fs, &emu, GME_SAMPLE_RATE); + if (gme_err != NULL) { + g_warning("%s", gme_err); + return NULL; + } + + num_songs = gme_track_count(emu); + /* if it only contains a single tune, don't treat as container */ + if (num_songs < 2) + return NULL; + + const char *subtune_suffix = uri_get_suffix(path_fs); + if (tnum <= num_songs){ + char *subtune = g_strdup_printf( + SUBTUNE_PREFIX "%03u.%s", tnum, subtune_suffix); + return subtune; + } else + return NULL; +} + static void gme_file_decode(struct decoder *decoder, const char *path_fs) { - int track = 0; /* index of track to play */ float song_len; Music_Emu *emu; gme_info_t *ti; @@ -26,13 +115,17 @@ gme_file_decode(struct decoder *decoder, const char *path_fs) enum decoder_command cmd; short buf[GME_BUFFER_SAMPLES]; const char* gme_err; + char *path_container = get_container_name(path_fs); + int song_num = get_song_num(path_fs); - gme_err = gme_open_file(path_fs, &emu, GME_SAMPLE_RATE); + gme_err = gme_open_file(path_container, &emu, GME_SAMPLE_RATE); + g_free(path_container); if (gme_err != NULL) { g_warning("%s", gme_err); return; } - if((gme_err = gme_track_info(emu, &ti, 0)) != NULL){ + + if((gme_err = gme_track_info(emu, &ti, song_num)) != NULL){ g_warning("%s", gme_err); gme_delete(emu); return; @@ -57,7 +150,7 @@ gme_file_decode(struct decoder *decoder, const char *path_fs) decoder_initialized(decoder, &audio_format, true, song_len); - if((gme_err = gme_start_track(emu, track)) != NULL) + if((gme_err = gme_start_track(emu, song_num)) != NULL) g_warning("%s", gme_err); /* play */ @@ -90,13 +183,17 @@ gme_tag_dup(const char *path_fs) Music_Emu *emu; gme_info_t *ti; const char* gme_err; + char *path_container=get_container_name(path_fs); + int song_num; + song_num=get_song_num(path_fs); - gme_err = gme_open_file(path_fs, &emu, GME_SAMPLE_RATE); + gme_err = gme_open_file(path_container, &emu, GME_SAMPLE_RATE); + g_free(path_container); if (gme_err != NULL) { g_warning("%s", gme_err); return NULL; } - if((gme_err = gme_track_info(emu, &ti, 0)) != NULL){ + if((gme_err = gme_track_info(emu, &ti, song_num)) != NULL){ g_warning("%s", gme_err); gme_delete(emu); return NULL; @@ -106,8 +203,16 @@ gme_tag_dup(const char *path_fs) if(ti != NULL){ if(ti->length > 0) tag->time = ti->length / 1000; - if(ti->song != NULL) - tag_add_item(tag, TAG_TITLE, ti->song); + if(ti->song != NULL){ + if(gme_track_count(emu) > 1){ + /* start numbering subtunes from 1 */ + char *tag_title=g_strdup_printf("%s (%d/%d)", + ti->song, song_num+1, gme_track_count(emu)); + tag_add_item(tag, TAG_TITLE, tag_title); + g_free(tag_title); + }else + tag_add_item(tag, TAG_TITLE, ti->song); + } if(ti->author != NULL) tag_add_item(tag, TAG_ARTIST, ti->author); if(ti->game != NULL) @@ -135,4 +240,5 @@ const struct decoder_plugin gme_decoder_plugin = { .file_decode = gme_file_decode, .tag_dup = gme_tag_dup, .suffixes = gme_suffixes, + .container_scan = gme_container_scan, }; 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