--sub-charset now also needs a track ID.

ChangeLog

@@ -1,5 +1,7 @@
 2003-06-22  Moritz Bunkus  <moritz@bunkus.org>
 
+        * --sub-charset now also needs a track ID.
+
         * Modified the verbosity levels for mkvinfo: The seek head subentries
         and cue subentries will only be shown at level 2 to make the 
         output easier to read. 

mkvmerge.cpp

@@ -234,7 +234,8 @@ static void usage(void) {
     "                           Works only for video tracks.\n"
     "  --aspect-ratio <f|a/b>   Sets the aspect ratio.\n"
     "\n Options that only apply to text subtitle tracks:\n"
-    "  --sub-charset <charset>  Sets the charset the text subtitles are\n"
+    "  --sub-charset <TID:charset>\n"
+    "                           Sets the charset the text subtitles are\n"
     "                           written in for the conversion to UTF-8.\n"
     "\n\n Other options:\n"
     "  -i, --identify <file>    Print information about the source file.\n"
@@ -579,6 +580,29 @@ static void parse_language(char *s, language_t &lang) {
   lang.language = s;
 }
 
+static void parse_sub_charset(char *s, language_t &sub_charset) {
+  char *colon;
+
+  // Extract the track number.
+  if ((colon = strchr(s, ':')) == NULL) {
+    fprintf(stderr, "Error: Invalid sub charset option. No track ID specified "
+            "(%s).\n", s);
+    exit(1);
+  }
+  *colon = 0;
+  if (!parse_int(s, sub_charset.id)) {
+    fprintf(stderr, "Error: Invalid track ID specified.\n");
+    exit(1);
+  }
+  s = &colon[1];
+  if (*s == 0) {
+    fprintf(stderr, "Error: Invalid sub charset specified.\n");
+    exit(1);
+  }
+
+  sub_charset.language = s;
+}
+
 static void render_headers(mm_io_c *out, bool last_file, bool first_file) {
   EbmlHead head;
   int i;
@@ -773,6 +797,7 @@ static void identify(const char *filename) {
   ti.cue_creations = new vector<cue_creation_t>;
   ti.default_track_flags = new vector<int64_t>;
   ti.languages = new vector<language_t>;
+  ti.sub_charsets = new vector<language_t>;
   ti.aspect_ratio = 1.0;
   ti.atracks = new vector<int64_t>;
   ti.vtracks = new vector<int64_t>;
@@ -820,6 +845,7 @@ static void parse_args(int argc, char **argv) {
   ti.cue_creations = new vector<cue_creation_t>;
   ti.default_track_flags = new vector<int64_t>;
   ti.languages = new vector<language_t>;
+  ti.sub_charsets = new vector<language_t>;
   ti.aspect_ratio = 1.0;
   ti.atracks = new vector<int64_t>;
   ti.vtracks = new vector<int64_t>;
@@ -1095,8 +1121,8 @@ static void parse_args(int argc, char **argv) {
         fprintf(stderr, "Error: --sub-charset lacks its argument.\n");
         exit(1);
       }
-
-      ti.sub_charset = argv[i + 1];
+      parse_sub_charset(argv[i + 1], lang);
+      ti.sub_charsets->push_back(lang);
       i++;
     }
 
@@ -1145,11 +1171,13 @@ static void parse_args(int argc, char **argv) {
       delete ti.cue_creations;
       delete ti.default_track_flags;
       delete ti.languages;
+      delete ti.sub_charsets;
       memset(&ti, 0, sizeof(track_info_t));
       ti.audio_syncs = new vector<audio_sync_t>;
       ti.cue_creations = new vector<cue_creation_t>;
       ti.default_track_flags = new vector<int64_t>;
       ti.languages = new vector<language_t>;
+      ti.sub_charsets = new vector<language_t>;
       ti.aspect_ratio = 1.0;
       ti.atracks = new vector<int64_t>;
       ti.vtracks = new vector<int64_t>;

pr_generic.cpp

@@ -91,6 +91,16 @@ generic_packetizer_c::generic_packetizer_c(generic_reader_c *nreader,
     }
   }
 
+  // Let's see if the user has specified a sub charset for this track.
+  for (i = 0; i < ti->sub_charsets->size(); i++) {
+    lang = &(*ti->sub_charsets)[i];
+    if ((lang->id == ti->id) || (lang->id == -1)) { // -1 == all tracks
+      safefree(ti->sub_charset);
+      ti->sub_charset = safestrdup(lang->language);
+      break;
+    }
+  }
+
   // Set default header values to 'unset'.
   hserialno = track_number++;
   huid = 0;
@@ -520,6 +530,10 @@ track_info_t *duplicate_track_info(track_info_t *src) {
   for (i = 0; i < src->languages->size(); i++)
     (*dst->languages)[i].language = safestrdup((*src->languages)[i].language);
   dst->language = safestrdup(src->language);
+  dst->sub_charsets = new vector<language_t>(*src->sub_charsets);
+  for (i = 0; i < src->sub_charsets->size(); i++)
+    (*dst->sub_charsets)[i].language =
+      safestrdup((*src->sub_charsets)[i].language);
   dst->private_data = (unsigned char *)safememdup(src->private_data,
                                                   src->private_size);
   dst->sub_charset = safestrdup(src->sub_charset);
@@ -543,6 +557,9 @@ void free_track_info(track_info_t *ti) {
   for (i = 0; i < ti->languages->size(); i++)
     safefree((*ti->languages)[i].language);
   delete ti->languages;
+  for (i = 0; i < ti->sub_charsets->size(); i++)
+    safefree((*ti->sub_charsets)[i].language);
+  delete ti->sub_charsets;
   safefree(ti->language);
   safefree(ti->private_data);
   safefree(ti->sub_charset);

pr_generic.h

@@ -94,7 +94,8 @@ typedef struct {
   vector<language_t> *languages; // As given on the command line
   char *language;               // For this very track
 
-  char *sub_charset;
+  vector<language_t> *sub_charsets; // As given on the command line
+  char *sub_charset;            // For this very track
 } track_info_t;
 
 class generic_reader_c;