diff options
Diffstat (limited to 'sub/find_subfiles.c')
| -rw-r--r-- | sub/find_subfiles.c | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/sub/find_subfiles.c b/sub/find_subfiles.c new file mode 100644 index 0000000000..72a6887bf6 --- /dev/null +++ b/sub/find_subfiles.c @@ -0,0 +1,271 @@ +#include <dirent.h> +#include <string.h> +#include <stdlib.h> +#include <ctype.h> + +#include "mp_msg.h" +#include "sub/find_subfiles.h" +#include "sub/sub.h" + +static void strcpy_trim(char *d, char *s) +{ + // skip leading whitespace + while (*s && isspace(*s)) { + s++; + } + for (;;) { + // copy word + while (*s && !isspace(*s)) { + *d = tolower(*s); + s++; d++; + } + if (*s == 0) + break; + // trim excess whitespace + while (*s && isspace(*s)) { + s++; + } + if (*s == 0) + break; + *d++ = ' '; + } + *d = 0; +} + +static void strcpy_strip_ext(char *d, char *s) +{ + char *tmp = strrchr(s, '.'); + if (!tmp) { + strcpy(d, s); + return; + } else { + strncpy(d, s, tmp-s); + d[tmp-s] = 0; + } + while (*d) { + *d = tolower(*d); + d++; + } +} + +static void strcpy_get_ext(char *d, char *s) +{ + char *tmp = strrchr(s, '.'); + if (!tmp) { + strcpy(d, ""); + return; + } else { + strcpy(d, tmp+1); + } +} + +static int whiteonly(char *s) +{ + while (*s) { + if (!isspace(*s)) + return 0; + s++; + } + return 1; +} + +typedef struct subfn { + int priority; + char *fname; +} subfn; + +static int compare_sub_priority(const void *a, const void *b) +{ + if (((const subfn*)a)->priority > ((const subfn*)b)->priority) { + return -1; + } else if (((const subfn*)a)->priority < ((const subfn*)b)->priority) { + return 1; + } else { + return strcoll(((const subfn*)a)->fname, ((const subfn*)b)->fname); + } +} + +char **sub_filenames(const char *path, char *fname) +{ + char *f_dir, *f_fname, *f_fname_noext, *f_fname_trim, *tmp, *tmp_sub_id; + char *tmp_fname_noext, *tmp_fname_trim, *tmp_fname_ext, *tmpresult; + + int len, pos, found, i, j; + char *sub_exts[] = {"utf", "utf8", "utf-8", "sub", "srt", "smi", "rt", "txt", "ssa", "aqt", "jss", "js", "ass", NULL}; + subfn *result; + char **result2; + + int subcnt; + + FILE *f; + + DIR *d; + struct dirent *de; + + len = (strlen(fname) > 256 ? strlen(fname) : 256) + + (strlen(path) > 256 ? strlen(path) : 256) + 2; + + f_dir = malloc(len); + f_fname = malloc(len); + f_fname_noext = malloc(len); + f_fname_trim = malloc(len); + + tmp_fname_noext = malloc(len); + tmp_fname_trim = malloc(len); + tmp_fname_ext = malloc(len); + + tmpresult = malloc(len); + + result = calloc(MAX_SUBTITLE_FILES, sizeof(*result)); + + subcnt = 0; + + tmp = strrchr(fname,'/'); +#if HAVE_DOS_PATHS + if(!tmp)tmp = strrchr(fname,'\\'); + if(!tmp)tmp = strrchr(fname,':'); +#endif + + // extract filename & dirname from fname + if (tmp) { + strcpy(f_fname, tmp+1); + pos = tmp - fname; + strncpy(f_dir, fname, pos+1); + f_dir[pos+1] = 0; + } else { + strcpy(f_fname, fname); + strcpy(f_dir, "./"); + } + + strcpy_strip_ext(f_fname_noext, f_fname); + strcpy_trim(f_fname_trim, f_fname_noext); + + /* The code using sub language here is broken - it assumes strict + * "videoname languagename" syntax for the subtitle file, which is + * very unlikely to match especially if language name uses "en,de" + * syntax... */ + tmp_sub_id = NULL; +#if 0 + if (dvdsub_lang && !whiteonly(dvdsub_lang)) { + tmp_sub_id = malloc(strlen(dvdsub_lang) + 1); + strcpy_trim(tmp_sub_id, dvdsub_lang); + } +#endif + + // 0 = nothing + // 1 = any subtitle file + // 2 = any sub file containing movie name + // 3 = sub file containing movie name and the lang extension + for (j = 0; j <= 1; j++) { + d = opendir(j == 0 ? f_dir : path); + if (d) { + while ((de = readdir(d))) { + // retrieve various parts of the filename + strcpy_strip_ext(tmp_fname_noext, de->d_name); + strcpy_get_ext(tmp_fname_ext, de->d_name); + strcpy_trim(tmp_fname_trim, tmp_fname_noext); + + // does it end with a subtitle extension? + found = 0; +#ifdef CONFIG_ICONV +#ifdef CONFIG_ENCA + for (i = ((sub_cp && strncasecmp(sub_cp, "enca", 4) != 0) ? 3 : 0); sub_exts[i]; i++) { +#else + for (i = (sub_cp ? 3 : 0); sub_exts[i]; i++) { +#endif +#else + for (i = 0; sub_exts[i]; i++) { +#endif + if (strcasecmp(sub_exts[i], tmp_fname_ext) == 0) { + found = 1; + break; + } + } + + // we have a (likely) subtitle file + if (found) { + int prio = 0; + if (!prio && tmp_sub_id) { + sprintf(tmpresult, "%s %s", f_fname_trim, tmp_sub_id); + if (strcmp(tmp_fname_trim, tmpresult) == 0 && sub_match_fuzziness >= 1) { + // matches the movie name + lang extension + prio = 5; + } + } + if (!prio && strcmp(tmp_fname_trim, f_fname_trim) == 0) { + // matches the movie name + prio = 4; + } + if (!prio && (tmp = strstr(tmp_fname_trim, f_fname_trim)) && sub_match_fuzziness >= 1) { + // contains the movie name + tmp += strlen(f_fname_trim); + if (tmp_sub_id && strstr(tmp, tmp_sub_id)) { + // with sub_id specified prefer localized subtitles + prio = 3; + } else if ((tmp_sub_id == NULL) && whiteonly(tmp)) { + // without sub_id prefer "plain" name + prio = 3; + } else { + // with no localized subs found, try any else instead + prio = 2; + } + } + if (!prio) { + // doesn't contain the movie name + // don't try in the mplayer subtitle directory + if (j == 0 && sub_match_fuzziness >= 2) { + prio = 1; + } + } + + mp_msg(MSGT_SUBREADER, MSGL_DBG2, "Potential sub file: " + "\"%s\" Priority: %d\n", de->d_name, prio); + if (prio) { + prio += prio; +#ifdef CONFIG_ICONV + if (i < 3) // prefer UTF-8 coded + prio++; +#endif + sprintf(tmpresult, "%s%s", j == 0 ? f_dir : path, de->d_name); + // fprintf(stderr, "%s priority %d\n", tmpresult, prio); + if ((f = fopen(tmpresult, "rt"))) { + fclose(f); + result[subcnt].priority = prio; + result[subcnt].fname = strdup(tmpresult); + subcnt++; + } + } + + } + if (subcnt >= MAX_SUBTITLE_FILES) break; + } + closedir(d); + } + + } + + free(tmp_sub_id); + + free(f_dir); + free(f_fname); + free(f_fname_noext); + free(f_fname_trim); + + free(tmp_fname_noext); + free(tmp_fname_trim); + free(tmp_fname_ext); + + free(tmpresult); + + qsort(result, subcnt, sizeof(subfn), compare_sub_priority); + + result2 = calloc(subcnt + 1, sizeof(*result2)); + + for (i = 0; i < subcnt; i++) + result2[i] = result[i].fname; + result2[subcnt] = NULL; + + free(result); + + return result2; +} |