Head

GCC Code Coverage Report

Directory:	../../../ffmpeg/		Exec	Total	Coverage
File:	src/libavcodec/microdvddec.c	Lines:	148	211	70.1 %
Date:	2020-01-27 20:17:04	Branches:	75	126	59.5 %


/*
 * Copyright (c) 2012 Clément Bœsch
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

/**
 * @file
 * MicroDVD subtitle decoder
 *
 * Based on the specifications found here:
 * https://trac.videolan.org/vlc/ticket/1825#comment:6
 */

#include "libavutil/avstring.h"
#include "libavutil/parseutils.h"
#include "libavutil/bprint.h"
#include "avcodec.h"
#include "ass.h"

static int indexof(const char *s, int c)
{
    char *f = strchr(s, c);
    return f ? (f - s) : -1;
}

struct microdvd_tag {
    char key;
    int persistent;
    uint32_t data1;
    uint32_t data2;
    char *data_string;
    int data_string_len;
};

#define MICRODVD_PERSISTENT_OFF     0
#define MICRODVD_PERSISTENT_ON      1
#define MICRODVD_PERSISTENT_OPENED  2

// Color, Font, Size, cHarset, stYle, Position, cOordinate
#define MICRODVD_TAGS "cfshyYpo"

static void microdvd_set_tag(struct microdvd_tag *tags, struct microdvd_tag tag)
{
    int tag_index = indexof(MICRODVD_TAGS, tag.key);

    if (tag_index < 0)
        return;
    memcpy(&tags[tag_index], &tag, sizeof(tag));
}

// italic, bold, underline, strike-through
#define MICRODVD_STYLES "ibus"

/* some samples have lines that start with a / indicating non persistent italic
 * marker */
static char *check_for_italic_slash_marker(struct microdvd_tag *tags, char *s)
{
    if (*s == '/') {
        struct microdvd_tag tag = tags[indexof(MICRODVD_TAGS, 'y')];
        tag.key = 'y';
        tag.data1 |= 1 << 0 /* 'i' position in MICRODVD_STYLES */;
        microdvd_set_tag(tags, tag);
        s++;
    }
    return s;
}

static char *microdvd_load_tags(struct microdvd_tag *tags, char *s)
{
    s = check_for_italic_slash_marker(tags, s);

    while (*s == '{') {
        char *start = s;
        char tag_char = *(s + 1);
        struct microdvd_tag tag = {0};

        if (!tag_char || *(s + 2) != ':')
            break;
        s += 3;

        switch (tag_char) {

        /* Style */
        case 'Y':
            tag.persistent = MICRODVD_PERSISTENT_ON;
        case 'y':
            while (*s && *s != '}' && s - start < 256) {
                int style_index = indexof(MICRODVD_STYLES, *s);

                if (style_index >= 0)
                    tag.data1 |= (1 << style_index);
                s++;
            }
            if (*s != '}')
                break;
            /* We must distinguish persistent and non-persistent styles
             * to handle this kind of style tags: {y:ib}{Y:us} */
            tag.key = tag_char;
            break;

        /* Color */
        case 'C':
            tag.persistent = MICRODVD_PERSISTENT_ON;
        case 'c':
            while (*s == '$' || *s == '#')
                s++;
            tag.data1 = strtol(s, &s, 16) & 0x00ffffff;
            if (*s != '}')
                break;
            tag.key = 'c';
            break;

        /* Font name */
        case 'F':
            tag.persistent = MICRODVD_PERSISTENT_ON;
        case 'f': {
            int len = indexof(s, '}');
            if (len < 0)
                break;
            tag.data_string = s;
            tag.data_string_len = len;
            s += len;
            tag.key = 'f';
            break;
        }

        /* Font size */
        case 'S':
            tag.persistent = MICRODVD_PERSISTENT_ON;
        case 's':
            tag.data1 = strtol(s, &s, 10);
            if (*s != '}')
                break;
            tag.key = 's';
            break;

        /* Charset */
        case 'H': {
            //TODO: not yet handled, just parsed.
            int len = indexof(s, '}');
            if (len < 0)
                break;
            tag.data_string = s;
            tag.data_string_len = len;
            s += len;
            tag.key = 'h';
            break;
        }

        /* Position */
        case 'P':
            if (!*s)
                break;
            tag.persistent = MICRODVD_PERSISTENT_ON;
            tag.data1 = (*s++ == '1');
            if (*s != '}')
                break;
            tag.key = 'p';
            break;

        /* Coordinates */
        case 'o':
            tag.persistent = MICRODVD_PERSISTENT_ON;
            tag.data1 = strtol(s, &s, 10);
            if (*s != ',')
                break;
            s++;
            tag.data2 = strtol(s, &s, 10);
            if (*s != '}')
                break;
            tag.key = 'o';
            break;

        default:    /* Unknown tag, we consider it's text */
            break;
        }

        if (tag.key == 0)
            return start;

        microdvd_set_tag(tags, tag);
        s++;
    }
    return check_for_italic_slash_marker(tags, s);
}

static void microdvd_open_tags(AVBPrint *new_line, struct microdvd_tag *tags)
{
    int i, sidx;
    for (i = 0; i < sizeof(MICRODVD_TAGS) - 1; i++) {
        if (tags[i].persistent == MICRODVD_PERSISTENT_OPENED)
            continue;
        switch (tags[i].key) {
        case 'Y':
        case 'y':
            for (sidx = 0; sidx < sizeof(MICRODVD_STYLES) - 1; sidx++)
                if (tags[i].data1 & (1 << sidx))
                    av_bprintf(new_line, "{\\%c1}", MICRODVD_STYLES[sidx]);
            break;

        case 'c':
            av_bprintf(new_line, "{\\c&H%06"PRIX32"&}", tags[i].data1);
            break;

        case 'f':
            av_bprintf(new_line, "{\\fn%.*s}",
                       tags[i].data_string_len, tags[i].data_string);
            break;

        case 's':
            av_bprintf(new_line, "{\\fs%"PRId32"}", tags[i].data1);
            break;

        case 'p':
            if (tags[i].data1 == 0)
                av_bprintf(new_line, "{\\an8}");
            break;

        case 'o':
            av_bprintf(new_line, "{\\pos(%"PRId32",%"PRId32")}",
                       tags[i].data1, tags[i].data2);
            break;
        }
        if (tags[i].persistent == MICRODVD_PERSISTENT_ON)
            tags[i].persistent = MICRODVD_PERSISTENT_OPENED;
    }
}

static void microdvd_close_no_persistent_tags(AVBPrint *new_line,
                                              struct microdvd_tag *tags)
{
    int i, sidx;

    for (i = sizeof(MICRODVD_TAGS) - 2; i >= 0; i--) {
        if (tags[i].persistent != MICRODVD_PERSISTENT_OFF)
            continue;
        switch (tags[i].key) {

        case 'y':
            for (sidx = sizeof(MICRODVD_STYLES) - 2; sidx >= 0; sidx--)
                if (tags[i].data1 & (1 << sidx))
                    av_bprintf(new_line, "{\\%c0}", MICRODVD_STYLES[sidx]);
            break;

        case 'c':
            av_bprintf(new_line, "{\\c}");
            break;

        case 'f':
            av_bprintf(new_line, "{\\fn}");
            break;

        case 's':
            av_bprintf(new_line, "{\\fs}");
            break;
        }
        tags[i].key = 0;
    }
}

static int microdvd_decode_frame(AVCodecContext *avctx,
                                 void *data, int *got_sub_ptr, AVPacket *avpkt)
{
    AVSubtitle *sub = data;
    AVBPrint new_line;
    char *line = avpkt->data;
    char *end = avpkt->data + avpkt->size;
    FFASSDecoderContext *s = avctx->priv_data;
    struct microdvd_tag tags[sizeof(MICRODVD_TAGS) - 1] = {{0}};

    if (avpkt->size <= 0)
        return avpkt->size;

    av_bprint_init(&new_line, 0, 2048);

    // subtitle content
    while (line < end && *line) {

        // parse MicroDVD tags, and open them in ASS
        line = microdvd_load_tags(tags, line);
        microdvd_open_tags(&new_line, tags);

        // simple copy until EOL or forced carriage return
        while (line < end && *line && *line != '|') {
            av_bprint_chars(&new_line, *line, 1);
            line++;
        }

        // line split
        if (line < end && *line == '|') {
            microdvd_close_no_persistent_tags(&new_line, tags);
            av_bprintf(&new_line, "\\N");
            line++;
        }
    }
    if (new_line.len) {
        int ret = ff_ass_add_rect(sub, new_line.str, s->readorder++, 0, NULL, NULL);
        av_bprint_finalize(&new_line, NULL);
        if (ret < 0)
            return ret;
    }

    *got_sub_ptr = sub->num_rects > 0;
    return avpkt->size;
}

static int microdvd_init(AVCodecContext *avctx)
{
    int i, sidx;
    AVBPrint font_buf;
    int font_size    = ASS_DEFAULT_FONT_SIZE;
    int color        = ASS_DEFAULT_COLOR;
    int bold         = ASS_DEFAULT_BOLD;
    int italic       = ASS_DEFAULT_ITALIC;
    int underline    = ASS_DEFAULT_UNDERLINE;
    int alignment    = ASS_DEFAULT_ALIGNMENT;
    struct microdvd_tag tags[sizeof(MICRODVD_TAGS) - 1] = {{0}};

    av_bprint_init(&font_buf, 0, AV_BPRINT_SIZE_AUTOMATIC);
    av_bprintf(&font_buf, "%s", ASS_DEFAULT_FONT);

    if (avctx->extradata) {
        microdvd_load_tags(tags, avctx->extradata);
        for (i = 0; i < sizeof(MICRODVD_TAGS) - 1; i++) {
            switch (av_tolower(tags[i].key)) {
            case 'y':
                for (sidx = 0; sidx < sizeof(MICRODVD_STYLES) - 1; sidx++) {
                    if (tags[i].data1 & (1 << sidx)) {
                        switch (MICRODVD_STYLES[sidx]) {
                        case 'i': italic    = 1; break;
                        case 'b': bold      = 1; break;
                        case 'u': underline = 1; break;
                        }
                    }
                }
                break;

            case 'c': color     = tags[i].data1; break;
            case 's': font_size = tags[i].data1; break;
            case 'p': alignment =             8; break;

            case 'f':
                av_bprint_clear(&font_buf);
                av_bprintf(&font_buf, "%.*s",
                           tags[i].data_string_len, tags[i].data_string);
                break;
            }
        }
    }
    return ff_ass_subtitle_header(avctx, font_buf.str, font_size, color,
                                  ASS_DEFAULT_BACK_COLOR, bold, italic,
                                  underline, ASS_DEFAULT_BORDERSTYLE,
                                  alignment);
}

AVCodec ff_microdvd_decoder = {
    .name         = "microdvd",
    .long_name    = NULL_IF_CONFIG_SMALL("MicroDVD subtitle"),
    .type         = AVMEDIA_TYPE_SUBTITLE,
    .id           = AV_CODEC_ID_MICRODVD,
    .init         = microdvd_init,
    .decode       = microdvd_decode_frame,
    .flush        = ff_ass_decoder_flush,
    .priv_data_size = sizeof(FFASSDecoderContext),
};


Generated by: GCOVR (Version 4.1)

Line	Branch	Exec	Source
1			/*
2			* Copyright (c) 2012 Clément Bœsch
3			*
4			* This file is part of FFmpeg.
5			*
6			* FFmpeg is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU Lesser General Public
8			* License as published by the Free Software Foundation; either
9			* version 2.1 of the License, or (at your option) any later version.
10			*
11			* FFmpeg is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14			* Lesser General Public License for more details.
15			*
16			* You should have received a copy of the GNU Lesser General Public
17			* License along with FFmpeg; if not, write to the Free Software
18			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19			*/
20
21			/**
22			* @file
23			* MicroDVD subtitle decoder
24			*
25			* Based on the specifications found here:
26			* https://trac.videolan.org/vlc/ticket/1825#comment:6
27			*/
28
29			#include "libavutil/avstring.h"
30			#include "libavutil/parseutils.h"
31			#include "libavutil/bprint.h"
32			#include "avcodec.h"
33			#include "ass.h"
34
35		21	static int indexof(const char *s, int c)
36			{
37		21	char *f = strchr(s, c);
38	✓✗	21	return f ? (f - s) : -1;
39			}
40
41			struct microdvd_tag {
42			char key;
43			int persistent;
44			uint32_t data1;
45			uint32_t data2;
46			char *data_string;
47			int data_string_len;
48			};
49
50			#define MICRODVD_PERSISTENT_OFF 0
51			#define MICRODVD_PERSISTENT_ON 1
52			#define MICRODVD_PERSISTENT_OPENED 2
53
54			// Color, Font, Size, cHarset, stYle, Position, cOordinate
55			#define MICRODVD_TAGS "cfshyYpo"
56
57		14	static void microdvd_set_tag(struct microdvd_tag *tags, struct microdvd_tag tag)
58			{
59		14	int tag_index = indexof(MICRODVD_TAGS, tag.key);
60
61	✗✓	14	if (tag_index < 0)
62			return;
63		14	memcpy(&tags[tag_index], &tag, sizeof(tag));
64			}
65
66			// italic, bold, underline, strike-through
67			#define MICRODVD_STYLES "ibus"
68
69			/* some samples have lines that start with a / indicating non persistent italic
70			* marker */
71		190	static char check_for_italic_slash_marker(struct microdvd_tag tags, char *s)
72			{
73	✗✓	190	if (*s == '/') {
74			struct microdvd_tag tag = tags[indexof(MICRODVD_TAGS, 'y')];
75			tag.key = 'y';
76			tag.data1 \|= 1 << 0 /* 'i' position in MICRODVD_STYLES */;
77			microdvd_set_tag(tags, tag);
78			s++;
79			}
80		190	return s;
81			}
82
83		95	static char microdvd_load_tags(struct microdvd_tag tags, char *s)
84			{
85		95	s = check_for_italic_slash_marker(tags, s);
86
87	✓✓	109	while (*s == '{') {
88		14	char *start = s;
89		14	char tag_char = *(s + 1);
90		14	struct microdvd_tag tag = {0};
91
92	✓✗✓✗	14	if (!tag_char \|\| *(s + 2) != ':')
93			break;
94		14	s += 3;
95
96	✓✓✗✓ ✓✗✓✗ ✗✗✓✗	14	switch (tag_char) {
97
98			/* Style */
99		1	case 'Y':
100		1	tag.persistent = MICRODVD_PERSISTENT_ON;
101		2	case 'y':
102	✓✗✓✓ ✓✗	6	while (s && s != '}' && s - start < 256) {
103		4	int style_index = indexof(MICRODVD_STYLES, *s);
104
105	✓✗	4	if (style_index >= 0)
106		4	tag.data1 \|= (1 << style_index);
107		4	s++;
108			}
109	✗✓	2	if (*s != '}')
110			break;
111			/* We must distinguish persistent and non-persistent styles
112			* to handle this kind of style tags: {y:ib}{Y:us} */
113		2	tag.key = tag_char;
114		2	break;
115
116			/* Color */
117			case 'C':
118			tag.persistent = MICRODVD_PERSISTENT_ON;
119		5	case 'c':
120	✓✓✗✓	10	while (s == '$' \|\| s == '#')
121		5	s++;
122		5	tag.data1 = strtol(s, &s, 16) & 0x00ffffff;
123	✗✓	5	if (*s != '}')
124			break;
125		5	tag.key = 'c';
126		5	break;
127
128			/* Font name */
129		3	case 'F':
130		3	tag.persistent = MICRODVD_PERSISTENT_ON;
131		3	case 'f': {
132		3	int len = indexof(s, '}');
133	✗✓	3	if (len < 0)
134			break;
135		3	tag.data_string = s;
136		3	tag.data_string_len = len;
137		3	s += len;
138		3	tag.key = 'f';
139		3	break;
140			}
141
142			/* Font size */
143		3	case 'S':
144		3	tag.persistent = MICRODVD_PERSISTENT_ON;
145		3	case 's':
146		3	tag.data1 = strtol(s, &s, 10);
147	✗✓	3	if (*s != '}')
148			break;
149		3	tag.key = 's';
150		3	break;
151
152			/* Charset */
153			case 'H': {
154			//TODO: not yet handled, just parsed.
155			int len = indexof(s, '}');
156			if (len < 0)
157			break;
158			tag.data_string = s;
159			tag.data_string_len = len;
160			s += len;
161			tag.key = 'h';
162			break;
163			}
164
165			/* Position */
166			case 'P':
167			if (!*s)
168			break;
169			tag.persistent = MICRODVD_PERSISTENT_ON;
170			tag.data1 = (*s++ == '1');
171			if (*s != '}')
172			break;
173			tag.key = 'p';
174			break;
175
176			/* Coordinates */
177		1	case 'o':
178		1	tag.persistent = MICRODVD_PERSISTENT_ON;
179		1	tag.data1 = strtol(s, &s, 10);
180	✗✓	1	if (*s != ',')
181			break;
182		1	s++;
183		1	tag.data2 = strtol(s, &s, 10);
184	✗✓	1	if (*s != '}')
185			break;
186		1	tag.key = 'o';
187		1	break;
188
189			default: /* Unknown tag, we consider it's text */
190			break;
191			}
192
193	✗✓	14	if (tag.key == 0)
194			return start;
195
196		14	microdvd_set_tag(tags, tag);
197		14	s++;
198			}
199		95	return check_for_italic_slash_marker(tags, s);
200			}
201
202		92	static void microdvd_open_tags(AVBPrint new_line, struct microdvd_tag tags)
203			{
204			int i, sidx;
205	✓✓	828	for (i = 0; i < sizeof(MICRODVD_TAGS) - 1; i++) {
206	✓✓	736	if (tags[i].persistent == MICRODVD_PERSISTENT_OPENED)
207		1	continue;
208	✓✓✗✗ ✗✓✓	735	switch (tags[i].key) {
209		2	case 'Y':
210			case 'y':
211	✓✓	10	for (sidx = 0; sidx < sizeof(MICRODVD_STYLES) - 1; sidx++)
212	✓✓	8	if (tags[i].data1 & (1 << sidx))
213		4	av_bprintf(new_line, "{\\%c1}", MICRODVD_STYLES[sidx]);
214		2	break;
215
216		2	case 'c':
217		2	av_bprintf(new_line, "{\\c&H%06"PRIX32"&}", tags[i].data1);
218		2	break;
219
220			case 'f':
221			av_bprintf(new_line, "{\\fn%.*s}",
222			tags[i].data_string_len, tags[i].data_string);
223			break;
224
225			case 's':
226			av_bprintf(new_line, "{\\fs%"PRId32"}", tags[i].data1);
227			break;
228
229			case 'p':
230			if (tags[i].data1 == 0)
231			av_bprintf(new_line, "{\\an8}");
232			break;
233
234		1	case 'o':
235		1	av_bprintf(new_line, "{\\pos(%"PRId32",%"PRId32")}",
236		1	tags[i].data1, tags[i].data2);
237		1	break;
238			}
239	✓✓	735	if (tags[i].persistent == MICRODVD_PERSISTENT_ON)
240		2	tags[i].persistent = MICRODVD_PERSISTENT_OPENED;
241			}
242		92	}
243
244		32	static void microdvd_close_no_persistent_tags(AVBPrint *new_line,
245			struct microdvd_tag *tags)
246			{
247			int i, sidx;
248
249	✓✓	288	for (i = sizeof(MICRODVD_TAGS) - 2; i >= 0; i--) {
250	✓✓	256	if (tags[i].persistent != MICRODVD_PERSISTENT_OFF)
251		1	continue;
252	✓✓✗✗ ✓	255	switch (tags[i].key) {
253
254		1	case 'y':
255	✓✓	5	for (sidx = sizeof(MICRODVD_STYLES) - 2; sidx >= 0; sidx--)
256	✓✓	4	if (tags[i].data1 & (1 << sidx))
257		2	av_bprintf(new_line, "{\\%c0}", MICRODVD_STYLES[sidx]);
258		1	break;
259
260		2	case 'c':
261		2	av_bprintf(new_line, "{\\c}");
262		2	break;
263
264			case 'f':
265			av_bprintf(new_line, "{\\fn}");
266			break;
267
268			case 's':
269			av_bprintf(new_line, "{\\fs}");
270			break;
271			}
272		255	tags[i].key = 0;
273			}
274		32	}
275
276		60	static int microdvd_decode_frame(AVCodecContext *avctx,
277			void data, int got_sub_ptr, AVPacket *avpkt)
278			{
279		60	AVSubtitle *sub = data;
280			AVBPrint new_line;
281		60	char *line = avpkt->data;
282		60	char *end = avpkt->data + avpkt->size;
283		60	FFASSDecoderContext *s = avctx->priv_data;
284		60	struct microdvd_tag tags[sizeof(MICRODVD_TAGS) - 1] = {{0}};
285
286	✗✓	60	if (avpkt->size <= 0)
287			return avpkt->size;
288
289		60	av_bprint_init(&new_line, 0, 2048);
290
291			// subtitle content
292	✓✓✓✗	152	while (line < end && *line) {
293
294			// parse MicroDVD tags, and open them in ASS
295		92	line = microdvd_load_tags(tags, line);
296		92	microdvd_open_tags(&new_line, tags);
297
298			// simple copy until EOL or forced carriage return
299	✓✓✓✗ ✓✓	3074	while (line < end && line && line != '\|') {
300		2982	av_bprint_chars(&new_line, *line, 1);
301		2982	line++;
302			}
303
304			// line split
305	✓✓✓✗	92	if (line < end && *line == '\|') {
306		32	microdvd_close_no_persistent_tags(&new_line, tags);
307		32	av_bprintf(&new_line, "\\N");
308		32	line++;
309			}
310			}
311	✓✗	60	if (new_line.len) {
312		60	int ret = ff_ass_add_rect(sub, new_line.str, s->readorder++, 0, NULL, NULL);
313		60	av_bprint_finalize(&new_line, NULL);
314	✗✓	60	if (ret < 0)
315			return ret;
316			}
317
318		60	*got_sub_ptr = sub->num_rects > 0;
319		60	return avpkt->size;
320			}
321
322		5	static int microdvd_init(AVCodecContext *avctx)
323			{
324			int i, sidx;
325			AVBPrint font_buf;
326		5	int font_size = ASS_DEFAULT_FONT_SIZE;
327		5	int color = ASS_DEFAULT_COLOR;
328		5	int bold = ASS_DEFAULT_BOLD;
329		5	int italic = ASS_DEFAULT_ITALIC;
330		5	int underline = ASS_DEFAULT_UNDERLINE;
331		5	int alignment = ASS_DEFAULT_ALIGNMENT;
332		5	struct microdvd_tag tags[sizeof(MICRODVD_TAGS) - 1] = {{0}};
333
334		5	av_bprint_init(&font_buf, 0, AV_BPRINT_SIZE_AUTOMATIC);
335		5	av_bprintf(&font_buf, "%s", ASS_DEFAULT_FONT);
336
337	✓✓	5	if (avctx->extradata) {
338		3	microdvd_load_tags(tags, avctx->extradata);
339	✓✓	27	for (i = 0; i < sizeof(MICRODVD_TAGS) - 1; i++) {
340	✗✓✓✗ ✓✓	24	switch (av_tolower(tags[i].key)) {
341			case 'y':
342			for (sidx = 0; sidx < sizeof(MICRODVD_STYLES) - 1; sidx++) {
343			if (tags[i].data1 & (1 << sidx)) {
344			switch (MICRODVD_STYLES[sidx]) {
345			case 'i': italic = 1; break;
346			case 'b': bold = 1; break;
347			case 'u': underline = 1; break;
348			}
349			}
350			}
351			break;
352
353		3	case 'c': color = tags[i].data1; break;
354		3	case 's': font_size = tags[i].data1; break;
355			case 'p': alignment = 8; break;
356
357		3	case 'f':
358		3	av_bprint_clear(&font_buf);
359		3	av_bprintf(&font_buf, "%.*s",
360			tags[i].data_string_len, tags[i].data_string);
361		3	break;
362			}
363		24	}
364			}
365		5	return ff_ass_subtitle_header(avctx, font_buf.str, font_size, color,
366			ASS_DEFAULT_BACK_COLOR, bold, italic,
367			underline, ASS_DEFAULT_BORDERSTYLE,
368			alignment);
369			}
370
371			AVCodec ff_microdvd_decoder = {
372			.name = "microdvd",
373			.long_name = NULL_IF_CONFIG_SMALL("MicroDVD subtitle"),
374			.type = AVMEDIA_TYPE_SUBTITLE,
375			.id = AV_CODEC_ID_MICRODVD,
376			.init = microdvd_init,
377			.decode = microdvd_decode_frame,
378			.flush = ff_ass_decoder_flush,
379			.priv_data_size = sizeof(FFASSDecoderContext),
380			};