int ff_ass_add_rect(AVSubtitle *sub, const char *dialog,
int ts_start, int duration, int raw)
{
AVBPrint buf;
int ret, dlen;
AVSubtitleRect **rects;
av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
if (!raw) {
av_bprintf(&buf, "Dialogue: 0,");
insert_ts(&buf, ts_start);
insert_ts(&buf, duration == -1 ? -1 : ts_start + duration);
av_bprintf(&buf, "Default,");
}
dlen = strcspn(dialog, "\n");
dlen += dialog[dlen] == '\n';
av_bprintf(&buf, "%.*s", dlen, dialog);
if (!av_bprint_is_complete(&buf))
return AVERROR(ENOMEM);
rects = av_realloc(sub->rects, (sub->num_rects+1) * sizeof(*sub->rects));
if (!rects)
return AVERROR(ENOMEM);
sub->rects = rects;
sub->end_display_time = FFMAX(sub->end_display_time, 10 * duration);
rects[sub->num_rects] = av_mallocz(sizeof(*rects[0]));
rects[sub->num_rects]->type = SUBTITLE_ASS;
ret = av_bprint_finalize(&buf, &rects[sub->num_rects]->ass);
if (ret < 0)
return ret;
sub->num_rects++;
return dlen;
}
int ff_ass_add_rect_bprint(AVSubtitle *sub, const AVBPrint *buf,
int ts_start, int duration, int raw)
{
if (!av_bprint_is_complete(buf))
return AVERROR(ENOMEM);
return ff_ass_add_rect(sub, buf->str, ts_start, duration, raw);
}
int ff_ass_add_rect(AVSubtitle *sub, const char *dialog,
int ts_start, int duration, int raw)
{
AVBPrint buf;
int ret, dlen;
AVSubtitleRect **rects;
av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
if ((ret = ff_ass_bprint_dialog(&buf, dialog, ts_start, duration, raw)) < 0)
goto err;
dlen = ret;
if (!av_bprint_is_complete(&buf))
goto errnomem;
rects = av_realloc_array(sub->rects, (sub->num_rects+1), sizeof(*sub->rects));
if (!rects)
goto errnomem;
sub->rects = rects;
sub->end_display_time = FFMAX(sub->end_display_time, 10 * duration);
rects[sub->num_rects] = av_mallocz(sizeof(*rects[0]));
rects[sub->num_rects]->type = SUBTITLE_ASS;
ret = av_bprint_finalize(&buf, &rects[sub->num_rects]->ass);
if (ret < 0)
goto err;
sub->num_rects++;
return dlen;
errnomem:
ret = AVERROR(ENOMEM);
err:
av_bprint_finalize(&buf, NULL);
return ret;
}
static int write_frame(struct AVFormatContext *s, int stream_index,
AVFrame **frame, unsigned flags)
{
AVBPrint bp;
int ret = 0;
enum AVMediaType type;
const char *type_name;
if ((flags & AV_WRITE_UNCODED_FRAME_QUERY))
return 0;
av_bprint_init(&bp, 0, AV_BPRINT_SIZE_UNLIMITED);
av_bprintf(&bp, "%d, %10"PRId64"",
stream_index, (*frame)->pts);
type = s->streams[stream_index]->codec->codec_type;
type_name = av_get_media_type_string(type);
av_bprintf(&bp, ", %s", type_name ? type_name : "unknown");
switch (type) {
case AVMEDIA_TYPE_VIDEO:
video_frame_cksum(&bp, *frame);
break;
case AVMEDIA_TYPE_AUDIO:
audio_frame_cksum(&bp, *frame);
break;
}
av_bprint_chars(&bp, '\n', 1);
if (av_bprint_is_complete(&bp))
avio_write(s->pb, bp.str, bp.len);
else
ret = AVERROR(ENOMEM);
av_bprint_finalize(&bp, NULL);
return ret;
}
static int mpl2_decode_frame(AVCodecContext *avctx, void *data,
int *got_sub_ptr, AVPacket *avpkt)
{
AVBPrint buf;
AVSubtitle *sub = data;
const char *ptr = avpkt->data;
#ifdef IDE_COMPILE
AVRational tmp;
int ts_start;
int ts_duration;
tmp.num = 1;
tmp.den = 100;
ts_start = av_rescale_q(avpkt->pts, avctx->time_base, tmp);
ts_duration = avpkt->duration != -1 ? av_rescale_q(avpkt->duration, avctx->time_base, tmp) : -1;
#else
const int ts_start = av_rescale_q(avpkt->pts, avctx->time_base, (AVRational){1,100});
const int ts_duration = avpkt->duration != -1 ?
av_rescale_q(avpkt->duration, avctx->time_base, (AVRational){1,100}) : -1;
#endif
av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
if (ptr && avpkt->size > 0 && *ptr && !mpl2_event_to_ass(&buf, ptr)) {
if (!av_bprint_is_complete(&buf)) {
av_bprint_finalize(&buf, NULL);
return AVERROR(ENOMEM);
}
ff_ass_add_rect(sub, buf.str, ts_start, ts_duration, 0);
}
*got_sub_ptr = sub->num_rects > 0;
av_bprint_finalize(&buf, NULL);
return avpkt->size;
}
int ff_ass_add_rect_bprint(AVSubtitle *sub, AVBPrint *buf,
int ts_start, int duration)
{
av_bprintf(buf, "\r\n");
if (!av_bprint_is_complete(buf))
return AVERROR(ENOMEM);
return ff_ass_add_rect(sub, buf->str, ts_start, duration, 0);
}
static int mov_text_decode_frame(AVCodecContext *avctx,
void *data, int *got_sub_ptr, AVPacket *avpkt)
{
AVSubtitle *sub = data;
int ts_start, ts_end;
AVBPrint buf;
const char *ptr = avpkt->data;
const char *end;
if (!ptr || avpkt->size < 2)
return AVERROR_INVALIDDATA;
/*
* A packet of size two with value zero is an empty subtitle
* used to mark the end of the previous non-empty subtitle.
* We can just drop them here as we have duration information
* already. If the value is non-zero, then it's technically a
* bad packet.
*/
if (avpkt->size == 2)
return AV_RB16(ptr) == 0 ? 0 : AVERROR_INVALIDDATA;
/*
* The first two bytes of the packet are the length of the text string
* In complex cases, there are style descriptors appended to the string
* so we can't just assume the packet size is the string size.
*/
end = ptr + FFMIN(2 + AV_RB16(ptr), avpkt->size);
ptr += 2;
ts_start = av_rescale_q(avpkt->pts,
avctx->time_base,
(AVRational){1,100});
ts_end = av_rescale_q(avpkt->pts + avpkt->duration,
avctx->time_base,
(AVRational){1,100});
// Note that the spec recommends lines be no longer than 2048 characters.
av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
text_to_ass(&buf, ptr, end);
if (!av_bprint_is_complete(&buf))
return AVERROR(ENOMEM);
ff_ass_add_rect(sub, buf.str, ts_start, ts_end-ts_start, 0);
*got_sub_ptr = sub->num_rects > 0;
av_bprint_finalize(&buf, NULL);
return avpkt->size;
}
int av_bprint_fd_contents(AVBPrint *pb, int fd)
{
int ret;
char buf[1024];
while (1) {
ret = read(fd, buf, sizeof(buf));
if (!ret)
return 0;
else if (ret < 0)
return AVERROR(errno);
av_bprint_append_data(pb, buf, ret);
if (!av_bprint_is_complete(pb))
return AVERROR(ENOMEM);
}
}
int av_escape(char **dst, const char *src, const char *special_chars,
enum AVEscapeMode mode, int flags)
{
AVBPrint dstbuf;
av_bprint_init(&dstbuf, 1, AV_BPRINT_SIZE_UNLIMITED);
av_bprint_escape(&dstbuf, src, special_chars, mode, flags);
if (!av_bprint_is_complete(&dstbuf)) {
av_bprint_finalize(&dstbuf, NULL);
return AVERROR(ENOMEM);
} else {
av_bprint_finalize(&dstbuf, dst);
return dstbuf.len;
}
}
static int expand_text(AVFilterContext *ctx, char *text, AVBPrint *bp)
{
int ret;
av_bprint_clear(bp);
while (*text) {
if (*text == '\\' && text[1]) {
av_bprint_chars(bp, text[1], 1);
text += 2;
} else if (*text == '%') {
text++;
if ((ret = expand_function(ctx, bp, &text)) < 0)
return ret;
} else {
av_bprint_chars(bp, *text, 1);
text++;
}
}
if (!av_bprint_is_complete(bp))
return AVERROR(ENOMEM);
return 0;
}
static int av_bprint_alloc(AVBPrint *buf, unsigned room)
{
char *old_str, *new_str;
unsigned min_size, new_size;
if (buf->size == buf->size_max)
return AVERROR(EIO);
if (!av_bprint_is_complete(buf))
return AVERROR_INVALIDDATA; /* it is already truncated anyway */
min_size = buf->len + 1 + FFMIN(UINT_MAX - buf->len - 1, room);
new_size = buf->size > buf->size_max / 2 ? buf->size_max : buf->size * 2;
if (new_size < min_size)
new_size = FFMIN(buf->size_max, min_size);
old_str = av_bprint_is_allocated(buf) ? buf->str : NULL;
new_str = av_realloc(old_str, new_size);
if (!new_str)
return AVERROR(ENOMEM);
if (!old_str)
memcpy(new_str, buf->str, buf->len + 1);
buf->str = new_str;
buf->size = new_size;
return 0;
}
static int icecast_open(URLContext *h, const char *uri, int flags)
{
IcecastContext *s = h->priv_data;
// Dict to set options that we pass to the HTTP protocol
AVDictionary *opt_dict = NULL;
// URI part variables
char h_url[1024], host[1024], auth[1024], path[1024];
char *headers = NULL, *user = NULL;
int port, ret;
AVBPrint bp;
if (flags & AVIO_FLAG_READ)
return AVERROR(ENOSYS);
av_bprint_init(&bp, 0, AV_BPRINT_SIZE_AUTOMATIC);
// Build header strings
cat_header(&bp, "Ice-Name", s->name);
cat_header(&bp, "Ice-Description", s->description);
cat_header(&bp, "Ice-URL", s->url);
cat_header(&bp, "Ice-Genre", s->genre);
cat_header(&bp, "Ice-Public", s->public ? "1" : "0");
if (!av_bprint_is_complete(&bp)) {
ret = AVERROR(ENOMEM);
goto cleanup;
}
av_bprint_finalize(&bp, &headers);
// Set options
av_dict_set(&opt_dict, "method", s->legacy_icecast ? "SOURCE" : "PUT", 0);
av_dict_set(&opt_dict, "auth_type", "basic", 0);
av_dict_set(&opt_dict, "headers", headers, 0);
av_dict_set(&opt_dict, "chunked_post", "0", 0);
av_dict_set(&opt_dict, "send_expect_100", s->legacy_icecast ? "0" : "1", 0);
if (NOT_EMPTY(s->content_type))
av_dict_set(&opt_dict, "content_type", s->content_type, 0);
else
av_dict_set(&opt_dict, "content_type", "audio/mpeg", 0);
if (NOT_EMPTY(s->user_agent))
av_dict_set(&opt_dict, "user_agent", s->user_agent, 0);
// Parse URI
av_url_split(NULL, 0, auth, sizeof(auth), host, sizeof(host),
&port, path, sizeof(path), uri);
// Check for auth data in URI
if (auth[0]) {
char *sep = strchr(auth, ':');
if (sep) {
*sep = 0;
sep++;
if (s->pass) {
av_free(s->pass);
av_log(h, AV_LOG_WARNING, "Overwriting -password <pass> with URI password!\n");
}
if (!(s->pass = av_strdup(sep))) {
ret = AVERROR(ENOMEM);
goto cleanup;
}
}
if (!(user = av_strdup(auth))) {
ret = AVERROR(ENOMEM);
goto cleanup;
}
}
// Build new authstring
snprintf(auth, sizeof(auth),
"%s:%s",
user ? user : DEFAULT_ICE_USER,
s->pass ? s->pass : "");
// Check for mountpoint (path)
if (!path[0] || strcmp(path, "/") == 0) {
av_log(h, AV_LOG_ERROR, "No mountpoint (path) specified!\n");
ret = AVERROR(EIO);
goto cleanup;
}
// Build new URI for passing to http protocol
ff_url_join(h_url, sizeof(h_url), "http", auth, host, port, "%s", path);
// Finally open http proto handler
ret = ffurl_open_whitelist(&s->hd, h_url, AVIO_FLAG_READ_WRITE, NULL,
&opt_dict, h->protocol_whitelist, h->protocol_blacklist, h);
cleanup:
av_freep(&user);
av_freep(&headers);
av_dict_free(&opt_dict);
return ret;
}
int 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];
int closing_brace_missing = 0;
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 '{':
handle_open_brace(dst, &in, &an, &closing_brace_missing);
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;
}
if (!av_bprint_is_complete(dst))
return AVERROR(ENOMEM);
while (dst->len >= 2 && !strncmp(&dst->str[dst->len - 2], "\\N", 2))
dst->len -= 2;
dst->str[dst->len] = 0;
rstrip_spaces_buf(dst);
return 0;
}
static void rstrip_spaces_buf(AVBPrint *buf)
{
if (av_bprint_is_complete(buf))
while (buf->len > 0 && buf->str[buf->len - 1] == ' ')
buf->str[--buf->len] = 0;
}
static int mov_text_encode_frame(AVCodecContext *avctx, unsigned char *buf,
int bufsize, const AVSubtitle *sub)
{
MovTextContext *s = avctx->priv_data;
ASSDialog *dialog;
int i, j, num, length;
s->text_pos = 0;
s->count = 0;
s->style_box_flag = 0;
s->style_entries = 0;
for (i = 0; i < sub->num_rects; i++) {
if (sub->rects[i]->type != SUBTITLE_ASS) {
av_log(avctx, AV_LOG_ERROR, "Only SUBTITLE_ASS type supported.\n");
return AVERROR(ENOSYS);
}
dialog = ff_ass_split_dialog(s->ass_ctx, sub->rects[i]->ass, 0, &num);
for (; dialog && num--; dialog++) {
ff_ass_split_override_codes(&mov_text_callbacks, s, dialog->text);
}
if (s->style_box_flag) {
s->tsmb_size = s->count * STYLE_RECORD_SIZE + SIZE_ADD; //size of one style record is 12 bytes
s->tsmb_size = AV_RB32(&s->tsmb_size);
s->tsmb_type = MKTAG('s','t','y','l');
s->style_entries = AV_RB16(&s->count);
s->style_fontID = 0x00 | 0x01<<8;
s->style_fontsize = 0x12;
s->style_color = MKTAG(0xFF, 0xFF, 0xFF, 0xFF);
/*The above three attributes are hard coded for now
but will come from ASS style in the future*/
av_bprint_append_any(&s->buffer, &s->tsmb_size, 4);
av_bprint_append_any(&s->buffer, &s->tsmb_type, 4);
av_bprint_append_any(&s->buffer, &s->style_entries, 2);
for (j = 0; j < s->count; j++) {
av_bprint_append_any(&s->buffer, &s->style_attributes[j]->style_start, 2);
av_bprint_append_any(&s->buffer, &s->style_attributes[j]->style_end, 2);
av_bprint_append_any(&s->buffer, &s->style_fontID, 2);
av_bprint_append_any(&s->buffer, &s->style_attributes[j]->style_flag, 1);
av_bprint_append_any(&s->buffer, &s->style_fontsize, 1);
av_bprint_append_any(&s->buffer, &s->style_color, 4);
}
for (j = 0; j < s->count; j++) {
av_freep(&s->style_attributes[j]);
}
av_freep(&s->style_attributes);
av_freep(&s->style_attributes_temp);
}
}
AV_WB16(buf, s->text_pos);
buf += 2;
if (!av_bprint_is_complete(&s->buffer)) {
length = AVERROR(ENOMEM);
goto exit;
}
if (!s->buffer.len) {
length = 0;
goto exit;
}
if (s->buffer.len > bufsize - 3) {
av_log(avctx, AV_LOG_ERROR, "Buffer too small for ASS event.\n");
length = AVERROR(EINVAL);
goto exit;
}
memcpy(buf, s->buffer.str, s->buffer.len);
length = s->buffer.len + 2;
exit:
av_bprint_clear(&s->buffer);
return length;
}
static int srt_to_ass(AVCodecContext *avctx, AVBPrint *dst,
const char *in, int x1, int y1, int x2, int y2)
{
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}");
if (x1 >= 0 && y1 >= 0) {
/* XXX: here we rescale coordinate assuming they are in DVD resolution
* (720x480) since we don't have anything better */
if (x2 >= 0 && y2 >= 0 && (x2 != x1 || y2 != y1) && x2 >= x1 && y2 >= y1) {
/* text rectangle defined, write the text at the center of the rectangle */
const int cx = x1 + (x2 - x1)/2;
const int cy = y1 + (y2 - y1)/2;
const int scaled_x = cx * (int64_t)ASS_DEFAULT_PLAYRESX / 720;
const int scaled_y = cy * (int64_t)ASS_DEFAULT_PLAYRESY / 480;
av_bprintf(dst, "{\\an5}{\\pos(%d,%d)}", scaled_x, scaled_y);
} else {
/* only the top left corner, assume the text starts in that corner */
const int scaled_x = x1 * (int64_t)ASS_DEFAULT_PLAYRESX / 720;
const int scaled_y = y1 * (int64_t)ASS_DEFAULT_PLAYRESY / 480;
av_bprintf(dst, "{\\an1}{\\pos(%d,%d)}", scaled_x, scaled_y);
}
}
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) {
if ((param = strchr(buffer, ' ')))
*param++ = 0;
if ((!tag_close && sptr < FF_ARRAY_ELEMS(stack)) ||
( tag_close && sptr > 0 && !strcmp(stack[sptr-1].tag, buffer))) {
int i, j, unknown = 0;
in += len + tag_close;
if (!tag_close)
memset(stack+sptr, 0, sizeof(*stack));
if (!strcmp(buffer, "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(avctx, 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 (!buffer[1] && strspn(buffer, "bisu") == 1) {
av_bprintf(dst, "{\\%c%d}", buffer[0], !tag_close);
} else {
unknown = 1;
snprintf(tmp, sizeof(tmp), "</%s>", buffer);
}
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, buffer,
sizeof(stack[0].tag));
break;
}
}
default:
av_bprint_chars(dst, *in, 1);
break;
}
if (*in != ' ' && *in != '\r' && *in != '\n')
line_start = 0;
}
if (!av_bprint_is_complete(dst))
return AVERROR(ENOMEM);
while (dst->len >= 2 && !strncmp(&dst->str[dst->len - 2], "\\N", 2))
dst->len -= 2;
dst->str[dst->len] = 0;
rstrip_spaces_buf(dst);
return 0;
}