void ff_htmlmarkup_to_ass(void *log_ctx, AVBPrint *dst, const char *in) { char *param, buffer[128], tmp[128]; int len, tag_close, sptr = 1, line_start = 1, an = 0, end = 0; SrtStack stack[16]; stack[0].tag[0] = 0; strcpy(stack[0].param[PARAM_SIZE], "{\\fs}"); strcpy(stack[0].param[PARAM_COLOR], "{\\c}"); strcpy(stack[0].param[PARAM_FACE], "{\\fn}"); for (; !end && *in; in++) { switch (*in) { case '\r': break; case '\n': if (line_start) { end = 1; break; } rstrip_spaces_buf(dst); av_bprintf(dst, "\\N"); line_start = 1; break; case ' ': if (!line_start) av_bprint_chars(dst, *in, 1); break; case '{': /* skip all {\xxx} substrings except for {\an%d} and all microdvd like styles such as {Y:xxx} */ len = 0; an += sscanf(in, "{\\an%*1u}%n", &len) >= 0 && len > 0; if ((an != 1 && (len = 0, sscanf(in, "{\\%*[^}]}%n", &len) >= 0 && len > 0)) || (len = 0, sscanf(in, "{%*1[CcFfoPSsYy]:%*[^}]}%n", &len) >= 0 && len > 0)) { in += len - 1; } else av_bprint_chars(dst, *in, 1); break; case '<': tag_close = in[1] == '/'; len = 0; if (sscanf(in+tag_close+1, "%127[^>]>%n", buffer, &len) >= 1 && len > 0) { const char *tagname = buffer; while (*tagname == ' ') tagname++; if ((param = strchr(tagname, ' '))) *param++ = 0; if ((!tag_close && sptr < FF_ARRAY_ELEMS(stack)) || ( tag_close && sptr > 0 && !strcmp(stack[sptr-1].tag, tagname))) { int i, j, unknown = 0; in += len + tag_close; if (!tag_close) memset(stack+sptr, 0, sizeof(*stack)); if (!strcmp(tagname, "font")) { if (tag_close) { for (i=PARAM_NUMBER-1; i>=0; i--) if (stack[sptr-1].param[i][0]) for (j=sptr-2; j>=0; j--) if (stack[j].param[i][0]) { av_bprintf(dst, "%s", stack[j].param[i]); break; } } else { while (param) { if (!strncmp(param, "size=", 5)) { unsigned font_size; param += 5 + (param[5] == '"'); if (sscanf(param, "%u", &font_size) == 1) { snprintf(stack[sptr].param[PARAM_SIZE], sizeof(stack[0].param[PARAM_SIZE]), "{\\fs%u}", font_size); } } else if (!strncmp(param, "color=", 6)) { param += 6 + (param[6] == '"'); snprintf(stack[sptr].param[PARAM_COLOR], sizeof(stack[0].param[PARAM_COLOR]), "{\\c&H%X&}", html_color_parse(log_ctx, param)); } else if (!strncmp(param, "face=", 5)) { param += 5 + (param[5] == '"'); len = strcspn(param, param[-1] == '"' ? "\"" :" "); av_strlcpy(tmp, param, FFMIN(sizeof(tmp), len+1)); param += len; snprintf(stack[sptr].param[PARAM_FACE], sizeof(stack[0].param[PARAM_FACE]), "{\\fn%s}", tmp); } if ((param = strchr(param, ' '))) param++; } for (i=0; i<PARAM_NUMBER; i++) if (stack[sptr].param[i][0]) av_bprintf(dst, "%s", stack[sptr].param[i]); } } else if (tagname[0] && !tagname[1] && strspn(tagname, "bisu") == 1) { av_bprintf(dst, "{\\%c%d}", tagname[0], !tag_close); } else { unknown = 1; snprintf(tmp, sizeof(tmp), "</%s>", tagname); } if (tag_close) { sptr--; } else if (unknown && !strstr(in, tmp)) { in -= len + tag_close; av_bprint_chars(dst, *in, 1); } else av_strlcpy(stack[sptr++].tag, tagname, sizeof(stack[0].tag)); break; } } default: av_bprint_chars(dst, *in, 1); break; } if (*in != ' ' && *in != '\r' && *in != '\n') line_start = 0; } while (dst->len >= 2 && !strncmp(&dst->str[dst->len - 2], "\\N", 2)) dst->len -= 2; dst->str[dst->len] = 0; rstrip_spaces_buf(dst); }
void ff_htmlmarkup_to_ass(void *log_ctx, AVBPrint *dst, const char *in) { char *param, buffer[128], tmp[128]; int len, tag_close, sptr = 1, line_start = 1, an = 0, end = 0; SrtStack stack[16]; stack[0].tag[0] = 0; strcpy(stack[0].param[PARAM_SIZE], "{\\fs}"); strcpy(stack[0].param[PARAM_COLOR], "{\\c}"); strcpy(stack[0].param[PARAM_FACE], "{\\fn}"); for (; !end && *in; in++) { switch (*in) { case '\r': break; case '\n': if (line_start) { end = 1; break; } rstrip_spaces_buf(dst); av_bprintf(dst, "\\N"); line_start = 1; break; case ' ': if (!line_start) av_bprint_chars(dst, *in, 1); break; case '{':   len = 0; an += sscanf(in, "{\\an%*1u}%n", &len) >= 0 && len > 0; if ((an != 1 && (len = 0, sscanf(in, "{\\%*[^}]}%n", &len) >= 0 && len > 0)) || (len = 0, sscanf(in, "{%*1[CcFfoPSsYy]:%*[^}]}%n", &len) >= 0 && len > 0)) { in += len - 1; } else av_bprint_chars(dst, *in, 1); break; case '<': tag_close = in[1] == '/'; len = 0; if (sscanf(in+tag_close+1, "%127[^>]>%n", buffer, &len) >= 1 && len > 0) { const char *tagname = buffer; while (*tagname == ' ') tagname++; if ((param = strchr(tagname, ' '))) *param++ = 0; if ((!tag_close && sptr < FF_ARRAY_ELEMS(stack)) || ( tag_close && sptr > 0 && !strcmp(stack[sptr-1].tag, tagname))) { int i, j, unknown = 0; in += len + tag_close; if (!tag_close) memset(stack+sptr, 0, sizeof(*stack)); if (!strcmp(tagname, "font")) { if (tag_close) { for (i=PARAM_NUMBER-1; i>=0; i--) if (stack[sptr-1].param[i][0]) for (j=sptr-2; j>=0; j--) if (stack[j].param[i][0]) { av_bprintf(dst, "%s", stack[j].param[i]); break; } } else { while (param) { if (!strncmp(param, "size=", 5)) { unsigned font_size; param += 5 + (param[5] == '"'); if (sscanf(param, "%u", &font_size) == 1) { snprintf(stack[sptr].param[PARAM_SIZE], sizeof(stack[0].param[PARAM_SIZE]), "{\\fs%u}", font_size); } } else if (!strncmp(param, "color=", 6)) { param += 6 + (param[6] == '"'); snprintf(stack[sptr].param[PARAM_COLOR], sizeof(stack[0].param[PARAM_COLOR]), "{\\c&H%X&}", html_color_parse(log_ctx, param)); } else if (!strncmp(param, "face=", 5)) { param += 5 + (param[5] == '"'); len = strcspn(param, param[-1] == '"' ? "\"" :" "); av_strlcpy(tmp, param, FFMIN(sizeof(tmp), len+1)); param += len; snprintf(stack[sptr].param[PARAM_FACE], sizeof(stack[0].param[PARAM_FACE]), "{\\fn%s}", tmp); } if ((param = strchr(param, ' '))) param++; } for (i=0; i<PARAM_NUMBER; i++) if (stack[sptr].param[i][0]) av_bprintf(dst, "%s", stack[sptr].param[i]); } } else if (tagname[0] && !tagname[1] && strspn(tagname, "bisu") == 1) { av_bprintf(dst, "{\\%c%d}", tagname[0], !tag_close); } else { unknown = 1; snprintf(tmp, sizeof(tmp), "</%s>", tagname); } if (tag_close) { sptr--; } else if (unknown && !strstr(in, tmp)) { in -= len + tag_close; av_bprint_chars(dst, *in, 1); } else av_strlcpy(stack[sptr++].tag, tagname, sizeof(stack[0].tag)); break; } } default: av_bprint_chars(dst, *in, 1); break; } if (*in != ' ' && *in != '\r' && *in != '\n') line_start = 0; } while (dst->len >= 2 && !strncmp(&dst->str[dst->len - 2], "\\N", 2)) dst->len -= 2; dst->str[dst->len] = 0; rstrip_spaces_buf(dst); }