return 0;
}
- hb_deep_log( 2, "muxmp4: track %u, chunk duration %llu", MP4FindTrackIndex( m->file, trackId ), dur );
+ hb_deep_log( 2, "muxmp4: track %u, chunk duration %"PRIu64, MP4FindTrackIndex( m->file, trackId ), dur );
return 1;
}
MP4SetTrackIntegerProperty(m->file, mux_data->track, "mdia.minf.stbl.stsd.tx3g.dataReferenceIndex", 1);
MP4SetTrackIntegerProperty(m->file, mux_data->track, "mdia.minf.stbl.stsd.tx3g.horizontalJustification", 1);
- MP4SetTrackIntegerProperty(m->file, mux_data->track, "mdia.minf.stbl.stsd.tx3g.verticalJustification", 0);
+ MP4SetTrackIntegerProperty(m->file, mux_data->track, "mdia.minf.stbl.stsd.tx3g.verticalJustification", 255);
MP4SetTrackIntegerProperty(m->file, mux_data->track, "mdia.minf.stbl.stsd.tx3g.bgColorAlpha", 255);
return 0;
}
+typedef struct stylerecord_s {
+ enum style_s {ITALIC, BOLD, UNDERLINE} style;
+ uint16_t start;
+ uint16_t stop;
+ struct stylerecord_s *next;
+} stylerecord;
+
+static void hb_makestylerecord( stylerecord **stack,
+ enum style_s style, int start )
+{
+ stylerecord *record = calloc( sizeof( stylerecord ), 1 );
+
+ if( record )
+ {
+ record->style = style;
+ record->start = start;
+ record->next = *stack;
+ *stack = record;
+ }
+}
+
+static void hb_makestyleatom( stylerecord *record, uint8_t *style)
+{
+ uint8_t face = 1;
+ hb_deep_log(3, "Made style '%s' from %d to %d",
+ record->style == ITALIC ? "Italic" : record->style == BOLD ? "Bold" : "Underline", record->start, record->stop);
+
+ switch( record->style )
+ {
+ case ITALIC:
+ face = 2;
+ break;
+ case BOLD:
+ face = 1;
+ break;
+ case UNDERLINE:
+ face = 4;
+ break;
+ default:
+ face = 2;
+ break;
+ }
+
+ style[0] = (record->start >> 8) & 0xff; // startChar
+ style[1] = record->start & 0xff;
+ style[2] = (record->stop >> 8) & 0xff; // endChar
+ style[3] = record->stop & 0xff;
+ style[4] = (1 >> 8) & 0xff; // font-ID
+ style[5] = 1 & 0xff;
+ style[6] = face; // face-style-flags: 1 bold; 2 italic; 4 underline
+ style[7] = 24; // font-size
+ style[8] = 255; // r
+ style[9] = 255; // g
+ style[10] = 255; // b
+ style[11] = 255; // a
+
+}
+
+/*
+ * Copy the input to output removing markup and adding markup to the style
+ * atom where appropriate.
+ */
+static void hb_muxmp4_process_subtitle_style( uint8_t *input,
+ uint8_t *output,
+ uint8_t *style, uint16_t *stylesize )
+{
+ uint8_t *reader = input;
+ uint8_t *writer = output;
+ uint8_t stylecount = 0;
+ uint16_t utf8_count = 0; // utf8 count from start of subtitle
+ stylerecord *stylestack = NULL;
+ stylerecord *oldrecord = NULL;
+
+ while(*reader != '\0') {
+ if( ( *reader & 0xc0 ) == 0x80 )
+ {
+ /*
+ * Track the utf8_count when doing markup so that we get the tx3g stops
+ * based on UTF8 chr counts rather than bytes.
+ */
+ utf8_count++;
+ hb_deep_log( 3, "MuxMP4: Counted %d UTF-8 chrs within subtitle so far",
+ utf8_count);
+ }
+ if (*reader == '<') {
+ /*
+ * possible markup, peek at the next chr
+ */
+ switch(*(reader+1)) {
+ case 'i':
+ if (*(reader+2) == '>') {
+ reader += 3;
+ hb_makestylerecord(&stylestack, ITALIC, (writer - output - utf8_count));
+ } else {
+ *writer++ = *reader++;
+ }
+ break;
+ case 'b':
+ if (*(reader+2) == '>') {
+ reader += 3;
+ hb_makestylerecord(&stylestack, BOLD, (writer - output - utf8_count));
+ } else {
+ *writer++ = *reader++;
+ }
+ break;
+ case 'u':
+ if (*(reader+2) == '>') {
+ reader += 3;
+ hb_makestylerecord(&stylestack, UNDERLINE, (writer - output - utf8_count));
+ } else {
+ *writer++ = *reader++;
+ }
+ break;
+ case '/':
+ switch(*(reader+2)) {
+ case 'i':
+ if (*(reader+3) == '>') {
+ /*
+ * Check whether we then immediately start more markup of the same type, if so then
+ * lets not close it now and instead continue this markup.
+ */
+ if ((*(reader+4) && *(reader+4) == '<') &&
+ (*(reader+5) && *(reader+5) == 'i') &&
+ (*(reader+6) && *(reader+6) == '>')) {
+ /*
+ * Opening italics right after, so don't close off these italics.
+ */
+ hb_deep_log(3, "Joining two sets of italics");
+ reader += (4 + 3);
+ continue;
+ }
+
+
+ if ((*(reader+4) && *(reader+4) == ' ') &&
+ (*(reader+5) && *(reader+5) == '<') &&
+ (*(reader+6) && *(reader+6) == 'i') &&
+ (*(reader+7) && *(reader+7) == '>')) {
+ /*
+ * Opening italics right after, so don't close off these italics.
+ */
+ hb_deep_log(3, "Joining two sets of italics (plus space)");
+ reader += (4 + 4);
+ *writer++ = ' ';
+ continue;
+ }
+ if (stylestack && stylestack->style == ITALIC) {
+ uint8_t style_record[12];
+ stylestack->stop = writer - output - utf8_count;
+ hb_makestyleatom(stylestack, style_record);
+
+ memcpy(style + 10 + (12 * stylecount), style_record, 12);
+ stylecount++;
+
+ oldrecord = stylestack;
+ stylestack = stylestack->next;
+ free(oldrecord);
+ } else {
+ hb_error("Mismatched Subtitle markup '%s'", input);
+ }
+ reader += 4;
+ } else {
+ *writer++ = *reader++;
+ }
+ break;
+ case 'b':
+ if (*(reader+3) == '>') {
+ if (stylestack && stylestack->style == BOLD) {
+ uint8_t style_record[12];
+ stylestack->stop = writer - output - utf8_count;
+ hb_makestyleatom(stylestack, style_record);
+
+ memcpy(style + 10 + (12 * stylecount), style_record, 12);
+ stylecount++;
+ oldrecord = stylestack;
+ stylestack = stylestack->next;
+ free(oldrecord);
+ } else {
+ hb_error("Mismatched Subtitle markup '%s'", input);
+ }
+
+ reader += 4;
+ } else {
+ *writer++ = *reader++;
+ }
+ break;
+ case 'u':
+ if (*(reader+3) == '>') {
+ if (stylestack && stylestack->style == UNDERLINE) {
+ uint8_t style_record[12];
+ stylestack->stop = writer - output - utf8_count;
+ hb_makestyleatom(stylestack, style_record);
+
+ memcpy(style + 10 + (12 * stylecount), style_record, 12);
+ stylecount++;
+
+ oldrecord = stylestack;
+ stylestack = stylestack->next;
+ free(oldrecord);
+ } else {
+ hb_error("Mismatched Subtitle markup '%s'", input);
+ }
+ reader += 4;
+ } else {
+ *writer++ = *reader++;
+ }
+ break;
+ default:
+ *writer++ = *reader++;
+ break;
+ }
+ break;
+ default:
+ *writer++ = *reader++;
+ break;
+ }
+ } else {
+ *writer++ = *reader++;
+ }
+ }
+ *writer = '\0';
+
+ if( stylecount )
+ {
+ *stylesize = 10 + ( stylecount * 12 );
+
+ memcpy( style + 4, "styl", 4);
+
+ style[0] = 0;
+ style[1] = 0;
+ style[2] = (*stylesize >> 8) & 0xff;
+ style[3] = *stylesize & 0xff;
+ style[8] = (stylecount >> 8) & 0xff;
+ style[9] = stylecount & 0xff;
+
+ }
+
+}
+
static int MP4Mux( hb_mux_object_t * m, hb_mux_data_t * mux_data,
hb_buffer_t * buf )
{
offset = buf->start + m->init_delay - m->sum_dur;
if ( offset < 0 )
{
- hb_log("MP4Mux: illegal render offset %lld, start %lld,"
- "stop %lld, sum_dur %lld",
+ hb_log("MP4Mux: illegal render offset %"PRId64", start %"PRId64","
+ "stop %"PRId64", sum_dur %"PRId64,
offset, buf->start, buf->stop, m->sum_dur );
offset = 0;
}
be possible and usually indicates a bug in the upstream code.
Complain in the hope that someone will go find the bug but
try to fix the error so that the file will still be playable. */
- hb_log("MP4Mux: illegal duration %lld, start %lld,"
- "stop %lld, sum_dur %lld",
+ hb_log("MP4Mux: illegal duration %"PRId64", start %"PRId64","
+ "stop %"PRId64", sum_dur %"PRId64,
duration, buf->start, buf->stop, m->sum_dur );
/* we don't know when the next frame starts so we can't pick a
valid duration for this one. we pick something "short"
}
mux_data->sum_dur += buf->start - mux_data->sum_dur;
}
+ uint8_t styleatom[2048];;
+ uint16_t stylesize = 0;
+ uint8_t buffer[2048];
+ uint16_t buffersize = 0;
+ uint8_t output[2048];
+
+ *buffer = '\0';
+
+ /*
+ * Copy the subtitle into buffer stripping markup and creating
+ * style atoms for them.
+ */
+ hb_muxmp4_process_subtitle_style( buf->data,
+ buffer,
+ styleatom, &stylesize );
+
+ buffersize = strlen((char*)buffer);
+
+ hb_deep_log(3, "MuxMP4:Sub:%fs:%"PRId64":%"PRId64":%"PRId64": %s",
+ (float)buf->start / 90000, buf->start, buf->stop,
+ (buf->stop - buf->start), buffer);
/* Write the subtitle sample */
- uint8_t buffer[2048];
- memcpy( buffer + 2, buf->data, buf->size );
- buffer[0] = ( buf->size >> 8 ) & 0xff;
- buffer[1] = buf->size & 0xff;
+ memcpy( output + 2, buffer, buffersize );
+ memcpy( output + 2 + buffersize, styleatom, stylesize);
+ output[0] = ( buffersize >> 8 ) & 0xff;
+ output[1] = buffersize & 0xff;
if( !MP4WriteSample( m->file,
mux_data->track,
- buffer,
- buf->size + 2,
+ output,
+ buffersize + stylesize + 2,
buf->stop - buf->start,
0,
1 ))
}
mux_data->sum_dur += (buf->stop - buf->start);
- hb_deep_log(3, "MuxMP4:Sub:%fs:%lld:%lld:%lld: %s", (float)buf->start / 90000, buf->start, buf->stop,
- (buf->stop - buf->start), buf->data);
- hb_deep_log(3, "MuxMP4:Total time elapsed:%lld", mux_data->sum_dur);
}
}
else
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