mirror of
https://github.com/mpv-player/mpv
synced 2024-12-28 10:02:17 +00:00
2afd7ebb4e
Most of these cased working when the OSD was switched to libass, or didn't do anything even before that. Also don't recursively include subreader.h in sub.h.
279 lines
8.4 KiB
C
279 lines
8.4 KiB
C
#include <dirent.h>
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#include <string.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <assert.h>
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#include "osdep/io.h"
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#include "mp_msg.h"
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#include "options.h"
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#include "path.h"
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#include "mpcommon.h"
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#include "sub/find_subfiles.h"
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#include "sub/sub.h"
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#include "sub/subreader.h"
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static struct bstr strip_ext(struct bstr str)
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{
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int dotpos = bstrrchr(str, '.');
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if (dotpos < 0)
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return str;
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return (struct bstr){str.start, dotpos};
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}
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static struct bstr get_ext(struct bstr s)
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{
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int dotpos = bstrrchr(s, '.');
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if (dotpos < 0)
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return (struct bstr){NULL, 0};
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return bstr_splice(s, dotpos + 1, s.len);
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}
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struct subfn {
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int priority;
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char *fname;
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};
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static int compare_sub_priority(const void *a, const void *b)
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{
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const struct subfn *s1 = a;
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const struct subfn *s2 = b;
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if (s1->priority > s2->priority)
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return -1;
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if (s1->priority < s2->priority)
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return 1;
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return strcoll(s1->fname, s2->fname);
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}
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static struct bstr guess_lang_from_filename(struct bstr name)
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{
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if (name.len < 2)
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return (struct bstr){NULL, 0};
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int n = 0;
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int i = name.len - 1;
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if (name.start[i] == ')' || name.start[i] == ']')
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i--;
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while (i >= 0 && isalpha(name.start[i])) {
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n++;
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if (n > 3)
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return (struct bstr){NULL, 0};
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i--;
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}
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if (n < 2)
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return (struct bstr){NULL, 0};
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return (struct bstr){name.start + i + 1, n};
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}
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struct sub_list {
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struct subfn subs[MAX_SUBTITLE_FILES];
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int sid;
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void *ctx;
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};
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/**
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* @brief Append all the subtitles in the given path matching fname
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* @param opts MPlayer options
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* @param slist pointer to the subtitles list tallocated
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* @param nsub pointer to the number of subtitles
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* @param path Look for subtitles in this directory
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* @param fname Subtitle filename (pattern)
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* @param limit_fuzziness Ignore flag when sub_fuziness == 2
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*/
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static void append_dir_subtitles(struct MPOpts *opts,
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struct subfn **slist, int *nsub,
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struct bstr path, const char *fname,
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int limit_fuzziness)
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{
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char *sub_exts[] = {"utf", "utf8", "utf-8", "sub", "srt", "smi", "rt", "txt", "ssa", "aqt", "jss", "js", "ass", NULL};
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void *tmpmem = talloc_new(NULL);
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FILE *f;
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assert(strlen(fname) < 1e6);
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struct bstr f_fname = bstr0(mp_basename(fname));
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struct bstr f_fname_noext = bstrdup(tmpmem, strip_ext(f_fname));
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bstr_lower(f_fname_noext);
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struct bstr f_fname_trim = bstr_strip(f_fname_noext);
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// 0 = nothing
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// 1 = any subtitle file
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// 2 = any sub file containing movie name
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// 3 = sub file containing movie name and the lang extension
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char *path0 = bstrdup0(tmpmem, path);
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DIR *d = opendir(path0);
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if (!d)
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goto out;
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mp_msg(MSGT_SUBREADER, MSGL_V, "Load subtitles in %.*s\n", BSTR_P(path));
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struct dirent *de;
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while ((de = readdir(d))) {
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struct bstr dename = bstr0(de->d_name);
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void *tmpmem2 = talloc_new(tmpmem);
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// retrieve various parts of the filename
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struct bstr tmp_fname_noext = bstrdup(tmpmem2, strip_ext(dename));
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bstr_lower(tmp_fname_noext);
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struct bstr tmp_fname_ext = get_ext(dename);
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struct bstr tmp_fname_trim = bstr_strip(tmp_fname_noext);
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// If it's a .sub, check if there is a .idx with the same name. If
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// there is one, it's certainly a vobsub so we skip it.
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if (bstrcasecmp(tmp_fname_ext, bstr0("sub")) == 0) {
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char *idxname = talloc_asprintf(tmpmem2, "%.*s.idx",
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(int)tmp_fname_noext.len,
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de->d_name);
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char *idx = mp_path_join(tmpmem2, path, bstr0(idxname));
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f = fopen(idx, "rt");
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if (f) {
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fclose(f);
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goto next_sub;
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}
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}
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// does it end with a subtitle extension?
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#ifdef CONFIG_ICONV
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#ifdef CONFIG_ENCA
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int i = (sub_cp && strncasecmp(sub_cp, "enca", 4) != 0) ? 3 : 0;
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#else
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int i = sub_cp ? 3 : 0;
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#endif
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#else
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int i = 0;
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#endif
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while (1) {
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if (!sub_exts[i])
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goto next_sub;
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if (bstrcasecmp(bstr0(sub_exts[i]), tmp_fname_ext) == 0)
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break;
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i++;
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}
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// we have a (likely) subtitle file
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int prio = 0;
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if (opts->sub_lang) {
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if (bstr_startswith(tmp_fname_trim, f_fname_trim)) {
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struct bstr lang = guess_lang_from_filename(tmp_fname_trim);
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if (lang.len) {
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for (int n = 0; opts->sub_lang[n]; n++) {
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if (bstr_startswith(lang,
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bstr0(opts->sub_lang[n]))) {
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prio = 4; // matches the movie name + lang extension
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break;
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}
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}
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}
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}
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}
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if (!prio && bstrcmp(tmp_fname_trim, f_fname_trim) == 0)
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prio = 3; // matches the movie name
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if (!prio && bstr_find(tmp_fname_trim, f_fname_trim) >= 0
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&& sub_match_fuzziness >= 1)
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prio = 2; // contains the movie name
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if (!prio) {
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// doesn't contain the movie name
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// don't try in the mplayer subtitle directory
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if (!limit_fuzziness && sub_match_fuzziness >= 2) {
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prio = 1;
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}
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}
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mp_msg(MSGT_SUBREADER, MSGL_DBG2, "Potential sub file: "
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"\"%s\" Priority: %d\n", de->d_name, prio);
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if (prio) {
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prio += prio;
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#ifdef CONFIG_ICONV
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if (i < 3) // prefer UTF-8 coded
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prio++;
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#endif
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char *subpath = mp_path_join(*slist, path, dename);
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if ((f = fopen(subpath, "rt"))) {
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MP_GROW_ARRAY(*slist, *nsub);
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struct subfn *sub = *slist + (*nsub)++;
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fclose(f);
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sub->priority = prio;
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sub->fname = subpath;
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} else
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talloc_free(subpath);
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}
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next_sub:
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talloc_free(tmpmem2);
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}
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closedir(d);
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out:
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talloc_free(tmpmem);
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}
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char **find_text_subtitles(struct MPOpts *opts, const char *fname)
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{
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char **subnames = NULL;
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struct subfn *slist = talloc_array_ptrtype(NULL, slist, 1);
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int n = 0;
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// Load subtitles from current media directory
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append_dir_subtitles(opts, &slist, &n, mp_dirname(fname), fname, 0);
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// Load subtitles in dirs specified by sub-paths option
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if (opts->sub_paths) {
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for (int i = 0; opts->sub_paths[i]; i++) {
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char *path = mp_path_join(slist, mp_dirname(fname),
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bstr0(opts->sub_paths[i]));
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append_dir_subtitles(opts, &slist, &n, bstr0(path), fname, 0);
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}
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}
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// Load subtitles in ~/.mplayer/sub limiting sub fuzziness
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char *mp_subdir = get_path("sub/");
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if (mp_subdir)
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append_dir_subtitles(opts, &slist, &n, bstr0(mp_subdir), fname, 1);
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free(mp_subdir);
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// Sort subs by priority and append them
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qsort(slist, n, sizeof(*slist), compare_sub_priority);
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subnames = talloc_array_ptrtype(NULL, subnames, n);
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for (int i = 0; i < n; i++)
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subnames[i] = talloc_strdup(subnames, slist[i].fname);
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talloc_free(slist);
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return subnames;
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}
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char **find_vob_subtitles(struct MPOpts *opts, const char *fname)
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{
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char **vobs = talloc_array_ptrtype(NULL, vobs, 1);
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int n = 0;
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// Potential vobsub in the media directory
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struct bstr bname = bstr0(mp_basename(fname));
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int pdot = bstrrchr(bname, '.');
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if (pdot >= 0)
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bname.len = pdot;
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vobs[n++] = mp_path_join(vobs, mp_dirname(fname), bname);
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// Potential vobsubs in directories specified by sub-paths option
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if (opts->sub_paths) {
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for (int i = 0; opts->sub_paths[i]; i++) {
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char *path = mp_path_join(NULL, mp_dirname(fname),
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bstr0(opts->sub_paths[i]));
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MP_GROW_ARRAY(vobs, n);
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vobs[n++] = mp_path_join(vobs, bstr0(path), bname);
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talloc_free(path);
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}
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}
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// Potential vobsub in ~/.mplayer/sub
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char *mp_subdir = get_path("sub/");
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if (mp_subdir) {
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MP_GROW_ARRAY(vobs, n);
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vobs[n++] = mp_path_join(vobs, bstr0(mp_subdir), bname);
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}
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free(mp_subdir);
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MP_RESIZE_ARRAY(NULL, vobs, n);
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return vobs;
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}
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