/src/vlc/modules/codec/substext.h

Source (jump to first uncovered line)
/*****************************************************************************
 * subsdec.c : text subtitle decoder
 *****************************************************************************
 * Copyright © 2011-2015 VLC authors and VideoLAN
 *
 * Authors: Laurent Aimer <fenrir@videolan.org>
 *          Jean-Baptiste Kempf <jb@videolan.org>
 *
 * This program 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.
 *
 * This program 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 this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

#include <vlc_strings.h>
#include <vlc_text_style.h>
#include <vlc_subpicture.h>

typedef struct substext_updater_region_t substext_updater_region_t;

enum substext_updater_region_flags_e
{
    UPDT_REGION_ORIGIN_X_IS_RATIO      = 1 << 0,
    UPDT_REGION_ORIGIN_Y_IS_RATIO      = 1 << 1,
    UPDT_REGION_EXTENT_X_IS_RATIO      = 1 << 2,
    UPDT_REGION_EXTENT_Y_IS_RATIO      = 1 << 3,
    UPDT_REGION_IGNORE_BACKGROUND      = 1 << 4,
    UPDT_REGION_USES_GRID_COORDINATES  = 1 << 5,
    UPDT_REGION_FIXED_DONE             = 1 << 31,
};

struct substext_updater_region_t
{
    struct
    {
        float x;
        float y;
    } origin, extent;
    /* store above percentile meanings as modifier flags */
    int flags; /* subpicture_updater_sys_region_flags_e */
    int align; /* alignment of the region itself */
    int inner_align; /* alignment of content inside the region */
    text_style_t *p_region_style;
    text_segment_t *p_segments;
    substext_updater_region_t *p_next;
};

typedef struct
{
    /* a min of one region */
    substext_updater_region_t region;

    /* styling */
    text_style_t *p_default_style; /* decoder (full or partial) defaults */
    float margin_ratio;
    vlc_tick_t i_next_update;
    bool b_blink_even;
} subtext_updater_sys_t;

static inline void SubpictureUpdaterSysRegionClean(substext_updater_region_t *p_updtregion)
{
    text_segment_ChainDelete( p_updtregion->p_segments );
    text_style_Delete( p_updtregion->p_region_style );
}

static inline void SubpictureUpdaterSysRegionInit(substext_updater_region_t *p_updtregion)
{
    memset(p_updtregion, 0, sizeof(*p_updtregion));
    p_updtregion->align = SUBPICTURE_ALIGN_BOTTOM;
    p_updtregion->inner_align = 0;
}

static inline substext_updater_region_t *SubpictureUpdaterSysRegionNew( void )
{
    substext_updater_region_t *p_region = malloc(sizeof(*p_region));
    if(p_region)
        SubpictureUpdaterSysRegionInit(p_region);
    return p_region;
}

static inline void SubpictureUpdaterSysRegionAdd(substext_updater_region_t *p_prev,
                                                 substext_updater_region_t *p_new)
{
    substext_updater_region_t **pp_next = &p_prev->p_next;
    for(; *pp_next; pp_next = &(*pp_next)->p_next);
    *pp_next = p_new;
}

static int SubpictureTextValidate(subpicture_t *subpic,
                                  bool has_src_changed, const video_format_t *fmt_src,
                                  bool has_dst_changed, const video_format_t *fmt_dst,
                                  vlc_tick_t ts)
{
    subtext_updater_sys_t *sys = subpic->updater.p_sys;
    VLC_UNUSED(fmt_src); VLC_UNUSED(fmt_dst);

    if (!has_src_changed && !has_dst_changed &&
        (sys->i_next_update == VLC_TICK_INVALID || sys->i_next_update > ts))
        return VLC_SUCCESS;

    substext_updater_region_t *p_updtregion = &sys->region;

    if (!(p_updtregion->flags & UPDT_REGION_FIXED_DONE) &&
        subpic->b_absolute && subpic->p_region &&
        subpic->i_original_picture_width > 0 &&
        subpic->i_original_picture_height > 0)
    {
        p_updtregion->flags |= UPDT_REGION_FIXED_DONE;
        p_updtregion->origin.x = subpic->p_region->i_x;
        p_updtregion->origin.y = subpic->p_region->i_y;
        p_updtregion->extent.x = subpic->i_original_picture_width;
        p_updtregion->extent.y = subpic->i_original_picture_height;
        p_updtregion->flags &= ~(UPDT_REGION_ORIGIN_X_IS_RATIO|UPDT_REGION_ORIGIN_Y_IS_RATIO|
                                 UPDT_REGION_EXTENT_X_IS_RATIO|UPDT_REGION_EXTENT_Y_IS_RATIO);
    }

    return VLC_EGENERIC;
}

static void SubpictureTextUpdate(subpicture_t *subpic,
                                 const video_format_t *fmt_src,
                                 const video_format_t *fmt_dst,
                                 vlc_tick_t ts)
{
    subtext_updater_sys_t *sys = subpic->updater.p_sys;
    VLC_UNUSED(fmt_src);

    if (fmt_dst->i_sar_num <= 0 || fmt_dst->i_sar_den <= 0)
        return;

    video_format_t fmt;
    video_format_Init(&fmt, VLC_CODEC_TEXT);

    /* NOTE about fmt_dst:
     * fmt_dst area and A/R will change to display once WxH of the
     * display is greater than the source video in direct rendering.
     * This will cause weird sudded region "moves" or "linebreaks" when
     * resizing window, mostly vertically.
     * see changes by 4a49754d943560fe79bc42f107d8ce566ea24898 */

    if( sys->region.flags & UPDT_REGION_USES_GRID_COORDINATES )
    {
        fmt.i_sar_num = 4;
        fmt.i_sar_den = 3;
        subpic->i_original_picture_width  = fmt_dst->i_visible_height * fmt.i_sar_num / fmt.i_sar_den;
        subpic->i_original_picture_height = fmt_dst->i_visible_height;
    }
    else
    {
        subpic->i_original_picture_width  = fmt_dst->i_width * fmt_dst->i_sar_num / fmt_dst->i_sar_den;
        subpic->i_original_picture_height = fmt_dst->i_height;
        fmt.i_sar_num = 1;
        fmt.i_sar_den = 1;
    }

    bool b_schedule_blink_update = false;
    subpicture_region_t **pp_last_region = &subpic->p_region;

    for( substext_updater_region_t *p_updtregion = &sys->region;
                                          p_updtregion; p_updtregion = p_updtregion->p_next )
    {
        subpicture_region_t *r = *pp_last_region = subpicture_region_New(&fmt);
        if (!r)
            return;
        pp_last_region = &r->p_next;

        r->p_text = text_segment_Copy( p_updtregion->p_segments );
        r->i_align = p_updtregion->align;
        r->i_text_align = p_updtregion->inner_align;
        r->b_noregionbg = p_updtregion->flags & UPDT_REGION_IGNORE_BACKGROUND;
        r->b_gridmode = p_updtregion->flags & UPDT_REGION_USES_GRID_COORDINATES;

        if (!(p_updtregion->flags & UPDT_REGION_FIXED_DONE))
        {
            const float margin_ratio = sys->margin_ratio;
            const int   margin_h     = margin_ratio * (( r->b_gridmode ) ? (unsigned) subpic->i_original_picture_width
                                                                         : fmt_dst->i_visible_width );
            const int   margin_v     = margin_ratio * fmt_dst->i_visible_height;

            /* subpic invisible margins sizes */
            const int outerright_h = fmt_dst->i_width - (fmt_dst->i_visible_width + fmt_dst->i_x_offset);
            const int outerbottom_v = fmt_dst->i_height - (fmt_dst->i_visible_height + fmt_dst->i_y_offset);
            /* regions usable */
            const int inner_w = fmt_dst->i_visible_width - margin_h * 2;
            const int inner_h = fmt_dst->i_visible_height - margin_v * 2;

            if (r->i_align & SUBPICTURE_ALIGN_LEFT)
                r->i_x = margin_h + fmt_dst->i_x_offset;
            else if (r->i_align & SUBPICTURE_ALIGN_RIGHT)
                r->i_x = margin_h + outerright_h;

            if (r->i_align & SUBPICTURE_ALIGN_TOP )
                r->i_y = margin_v + fmt_dst->i_y_offset;
            else if (r->i_align & SUBPICTURE_ALIGN_BOTTOM )
                r->i_y = margin_v + outerbottom_v;

            if( p_updtregion->flags & UPDT_REGION_ORIGIN_X_IS_RATIO )
                r->i_x += p_updtregion->origin.x * inner_w;
            else
                r->i_x += p_updtregion->origin.x;

            if( p_updtregion->flags & UPDT_REGION_ORIGIN_Y_IS_RATIO )
                r->i_y += p_updtregion->origin.y * inner_h;
            else
                r->i_y += p_updtregion->origin.y;

            if( p_updtregion->flags & UPDT_REGION_EXTENT_X_IS_RATIO )
                r->i_max_width += p_updtregion->extent.x * inner_w;
            else
                r->i_max_width += p_updtregion->extent.x;

            if( p_updtregion->flags & UPDT_REGION_EXTENT_Y_IS_RATIO )
                r->i_max_height += p_updtregion->extent.y * inner_h;
            else
                r->i_max_height += p_updtregion->extent.y;

        } else {
            /* FIXME it doesn't adapt on crop settings changes */
            r->i_x = p_updtregion->origin.x * fmt_dst->i_width  / p_updtregion->extent.x;
            r->i_y = p_updtregion->origin.y * fmt_dst->i_height / p_updtregion->extent.y;
        }

        /* Add missing default style, if any, to all segments */
        for ( text_segment_t* p_segment = r->p_text; p_segment; p_segment = p_segment->p_next )
        {
            /* Add decoder defaults */
            if( p_segment->style )
                text_style_Merge( p_segment->style, sys->p_default_style, false );
            else
                p_segment->style = text_style_Duplicate( sys->p_default_style );

            if( p_segment->style )
            {
                /* Update all segments font sizes in video source %,
                 * so we can handle HiDPI properly and have consistent rendering limits */
                 if( p_segment->style->i_font_size > 0 && fmt_src->i_visible_height > 0 )
                {
                    p_segment->style->f_font_relsize = 100.0 * p_segment->style->i_font_size / fmt_src->i_visible_height;
                    p_segment->style->i_font_size = 0;
                }

                if( p_segment->style->i_style_flags & (STYLE_BLINK_BACKGROUND|STYLE_BLINK_FOREGROUND) )
                {
                    if( sys->b_blink_even ) /* do nothing at first */
                    {
                        if( p_segment->style->i_style_flags & STYLE_BLINK_BACKGROUND )
                            p_segment->style->i_background_alpha =
                                    (~p_segment->style->i_background_alpha) & 0xFF;
                        if( p_segment->style->i_style_flags & STYLE_BLINK_FOREGROUND )
                            p_segment->style->i_font_alpha =
                                    (~p_segment->style->i_font_alpha) & 0xFF;
                    }
                    b_schedule_blink_update = true;
                }
            }
        }
    }

    if( b_schedule_blink_update &&
        (sys->i_next_update == VLC_TICK_INVALID || sys->i_next_update < ts) )
    {
        sys->i_next_update = ts + VLC_TICK_FROM_SEC(1);
        sys->b_blink_even = !sys->b_blink_even;
    }
}
static void SubpictureTextDestroy(subpicture_t *subpic)
{
    subtext_updater_sys_t *sys = subpic->updater.p_sys;

    SubpictureUpdaterSysRegionClean( &sys->region );
    substext_updater_region_t *p_region = sys->region.p_next;
    while( p_region )
    {
        substext_updater_region_t *p_next = p_region->p_next;
        SubpictureUpdaterSysRegionClean( p_region );
        free( p_region );
        p_region = p_next;
    }
    text_style_Delete( sys->p_default_style );
    free(sys);
}

static inline subpicture_t *decoder_NewSubpictureText(decoder_t *decoder)
{
    subtext_updater_sys_t *sys = calloc(1, sizeof(*sys));
    subpicture_updater_t updater = {
        .pf_validate = SubpictureTextValidate,
        .pf_update   = SubpictureTextUpdate,
        .pf_destroy  = SubpictureTextDestroy,
        .p_sys       = sys,
    };
    SubpictureUpdaterSysRegionInit( &sys->region );
    sys->margin_ratio = 0.04f;
    sys->p_default_style = text_style_Create( STYLE_NO_DEFAULTS );
    if(unlikely(!sys->p_default_style))
    {
        free(sys);
        return NULL;
    }
    subpicture_t *subpic = decoder_NewSubpicture(decoder, &updater);
    if (!subpic)
    {
        text_style_Delete(sys->p_default_style);
        free(sys);
    }
    return subpic;
}

Coverage Report

Created: 2023-03-26 06:11

Line	Count	Source (jump to first uncovered line)
1		/*****************************************************************************
2		* subsdec.c : text subtitle decoder
3		*****************************************************************************
4		* Copyright © 2011-2015 VLC authors and VideoLAN
5		*
6		* Authors: Laurent Aimer <fenrir@videolan.org>
7		* Jean-Baptiste Kempf <jb@videolan.org>
8		*
9		* This program is free software; you can redistribute it and/or modify it
10		* under the terms of the GNU Lesser General Public License as published by
11		* the Free Software Foundation; either version 2.1 of the License, or
12		* (at your option) any later version.
13		*
14		* This program is distributed in the hope that it will be useful,
15		* but WITHOUT ANY WARRANTY; without even the implied warranty of
16		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17		* GNU Lesser General Public License for more details.
18		*
19		* You should have received a copy of the GNU Lesser General Public License
20		* along with this program; if not, write to the Free Software Foundation,
21		* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22		*****************************************************************************/
23
24		#include <vlc_strings.h>
25		#include <vlc_text_style.h>
26		#include <vlc_subpicture.h>
27
28		typedef struct substext_updater_region_t substext_updater_region_t;
29
30		enum substext_updater_region_flags_e
31		{
32		UPDT_REGION_ORIGIN_X_IS_RATIO = 1 << 0,
33		UPDT_REGION_ORIGIN_Y_IS_RATIO = 1 << 1,
34		UPDT_REGION_EXTENT_X_IS_RATIO = 1 << 2,
35		UPDT_REGION_EXTENT_Y_IS_RATIO = 1 << 3,
36		UPDT_REGION_IGNORE_BACKGROUND = 1 << 4,
37		UPDT_REGION_USES_GRID_COORDINATES = 1 << 5,
38		UPDT_REGION_FIXED_DONE = 1 << 31,
39		};
40
41		struct substext_updater_region_t
42		{
43		struct
44		{
45		float x;
46		float y;
47		} origin, extent;
48		/* store above percentile meanings as modifier flags */
49		int flags; /* subpicture_updater_sys_region_flags_e */
50		int align; /* alignment of the region itself */
51		int inner_align; /* alignment of content inside the region */
52		text_style_t *p_region_style;
53		text_segment_t *p_segments;
54		substext_updater_region_t *p_next;
55		};
56
57		typedef struct
58		{
59		/* a min of one region */
60		substext_updater_region_t region;
61
62		/* styling */
63		text_style_t p_default_style; / decoder (full or partial) defaults */
64		float margin_ratio;
65		vlc_tick_t i_next_update;
66		bool b_blink_even;
67		} subtext_updater_sys_t;
68
69		static inline void SubpictureUpdaterSysRegionClean(substext_updater_region_t *p_updtregion)
70	0	{
71	0	text_segment_ChainDelete( p_updtregion->p_segments );
72	0	text_style_Delete( p_updtregion->p_region_style );
73	0	} Unexecuted instantiation: substtml.c:SubpictureUpdaterSysRegionClean Unexecuted instantiation: subsvtt.c:SubpictureUpdaterSysRegionClean
74
75		static inline void SubpictureUpdaterSysRegionInit(substext_updater_region_t *p_updtregion)
76	0	{
77	0	memset(p_updtregion, 0, sizeof(*p_updtregion));
78	0	p_updtregion->align = SUBPICTURE_ALIGN_BOTTOM;
79	0	p_updtregion->inner_align = 0;
80	0	} Unexecuted instantiation: substtml.c:SubpictureUpdaterSysRegionInit Unexecuted instantiation: subsvtt.c:SubpictureUpdaterSysRegionInit
81
82		static inline substext_updater_region_t *SubpictureUpdaterSysRegionNew( void )
83	0	{
84	0	substext_updater_region_t p_region = malloc(sizeof(p_region));
85	0	if(p_region)
86	0	SubpictureUpdaterSysRegionInit(p_region);
87	0	return p_region;
88	0	} Unexecuted instantiation: substtml.c:SubpictureUpdaterSysRegionNew Unexecuted instantiation: subsvtt.c:SubpictureUpdaterSysRegionNew
89
90		static inline void SubpictureUpdaterSysRegionAdd(substext_updater_region_t *p_prev,
91		substext_updater_region_t *p_new)
92	0	{
93	0	substext_updater_region_t **pp_next = &p_prev->p_next;
94	0	for(; pp_next; pp_next = &(pp_next)->p_next);
95	0	*pp_next = p_new;
96	0	} Unexecuted instantiation: substtml.c:SubpictureUpdaterSysRegionAdd Unexecuted instantiation: subsvtt.c:SubpictureUpdaterSysRegionAdd
97
98		static int SubpictureTextValidate(subpicture_t *subpic,
99		bool has_src_changed, const video_format_t *fmt_src,
100		bool has_dst_changed, const video_format_t *fmt_dst,
101		vlc_tick_t ts)
102	0	{
103	0	subtext_updater_sys_t *sys = subpic->updater.p_sys;
104	0	VLC_UNUSED(fmt_src); VLC_UNUSED(fmt_dst);
105
106	0	if (!has_src_changed && !has_dst_changed &&
107	0	(sys->i_next_update == VLC_TICK_INVALID \|\| sys->i_next_update > ts))
108	0	return VLC_SUCCESS;
109
110	0	substext_updater_region_t *p_updtregion = &sys->region;
111
112	0	if (!(p_updtregion->flags & UPDT_REGION_FIXED_DONE) &&
113	0	subpic->b_absolute && subpic->p_region &&
114	0	subpic->i_original_picture_width > 0 &&
115	0	subpic->i_original_picture_height > 0)
116	0	{
117	0	p_updtregion->flags \|= UPDT_REGION_FIXED_DONE;
118	0	p_updtregion->origin.x = subpic->p_region->i_x;
119	0	p_updtregion->origin.y = subpic->p_region->i_y;
120	0	p_updtregion->extent.x = subpic->i_original_picture_width;
121	0	p_updtregion->extent.y = subpic->i_original_picture_height;
122	0	p_updtregion->flags &= ~(UPDT_REGION_ORIGIN_X_IS_RATIO\|UPDT_REGION_ORIGIN_Y_IS_RATIO\|
123	0	UPDT_REGION_EXTENT_X_IS_RATIO\|UPDT_REGION_EXTENT_Y_IS_RATIO);
124	0	}
125
126	0	return VLC_EGENERIC;
127	0	} Unexecuted instantiation: substtml.c:SubpictureTextValidate Unexecuted instantiation: subsvtt.c:SubpictureTextValidate
128
129		static void SubpictureTextUpdate(subpicture_t *subpic,
130		const video_format_t *fmt_src,
131		const video_format_t *fmt_dst,
132		vlc_tick_t ts)
133	0	{
134	0	subtext_updater_sys_t *sys = subpic->updater.p_sys;
135	0	VLC_UNUSED(fmt_src);
136
137	0	if (fmt_dst->i_sar_num <= 0 \|\| fmt_dst->i_sar_den <= 0)
138	0	return;
139
140	0	video_format_t fmt;
141	0	video_format_Init(&fmt, VLC_CODEC_TEXT);
142
143		/* NOTE about fmt_dst:
144		* fmt_dst area and A/R will change to display once WxH of the
145		* display is greater than the source video in direct rendering.
146		* This will cause weird sudded region "moves" or "linebreaks" when
147		* resizing window, mostly vertically.
148		* see changes by 4a49754d943560fe79bc42f107d8ce566ea24898 */
149
150	0	if( sys->region.flags & UPDT_REGION_USES_GRID_COORDINATES )
151	0	{
152	0	fmt.i_sar_num = 4;
153	0	fmt.i_sar_den = 3;
154	0	subpic->i_original_picture_width = fmt_dst->i_visible_height * fmt.i_sar_num / fmt.i_sar_den;
155	0	subpic->i_original_picture_height = fmt_dst->i_visible_height;
156	0	}
157	0	else
158	0	{
159	0	subpic->i_original_picture_width = fmt_dst->i_width * fmt_dst->i_sar_num / fmt_dst->i_sar_den;
160	0	subpic->i_original_picture_height = fmt_dst->i_height;
161	0	fmt.i_sar_num = 1;
162	0	fmt.i_sar_den = 1;
163	0	}
164
165	0	bool b_schedule_blink_update = false;
166	0	subpicture_region_t **pp_last_region = &subpic->p_region;
167
168	0	for( substext_updater_region_t *p_updtregion = &sys->region;
169	0	p_updtregion; p_updtregion = p_updtregion->p_next )
170	0	{
171	0	subpicture_region_t r = pp_last_region = subpicture_region_New(&fmt);
172	0	if (!r)
173	0	return;
174	0	pp_last_region = &r->p_next;
175
176	0	r->p_text = text_segment_Copy( p_updtregion->p_segments );
177	0	r->i_align = p_updtregion->align;
178	0	r->i_text_align = p_updtregion->inner_align;
179	0	r->b_noregionbg = p_updtregion->flags & UPDT_REGION_IGNORE_BACKGROUND;
180	0	r->b_gridmode = p_updtregion->flags & UPDT_REGION_USES_GRID_COORDINATES;
181
182	0	if (!(p_updtregion->flags & UPDT_REGION_FIXED_DONE))
183	0	{
184	0	const float margin_ratio = sys->margin_ratio;
185	0	const int margin_h = margin_ratio * (( r->b_gridmode ) ? (unsigned) subpic->i_original_picture_width
186	0	: fmt_dst->i_visible_width );
187	0	const int margin_v = margin_ratio * fmt_dst->i_visible_height;
188
189		/* subpic invisible margins sizes */
190	0	const int outerright_h = fmt_dst->i_width - (fmt_dst->i_visible_width + fmt_dst->i_x_offset);
191	0	const int outerbottom_v = fmt_dst->i_height - (fmt_dst->i_visible_height + fmt_dst->i_y_offset);
192		/* regions usable */
193	0	const int inner_w = fmt_dst->i_visible_width - margin_h * 2;
194	0	const int inner_h = fmt_dst->i_visible_height - margin_v * 2;
195
196	0	if (r->i_align & SUBPICTURE_ALIGN_LEFT)
197	0	r->i_x = margin_h + fmt_dst->i_x_offset;
198	0	else if (r->i_align & SUBPICTURE_ALIGN_RIGHT)
199	0	r->i_x = margin_h + outerright_h;
200
201	0	if (r->i_align & SUBPICTURE_ALIGN_TOP )
202	0	r->i_y = margin_v + fmt_dst->i_y_offset;
203	0	else if (r->i_align & SUBPICTURE_ALIGN_BOTTOM )
204	0	r->i_y = margin_v + outerbottom_v;
205
206	0	if( p_updtregion->flags & UPDT_REGION_ORIGIN_X_IS_RATIO )
207	0	r->i_x += p_updtregion->origin.x * inner_w;
208	0	else
209	0	r->i_x += p_updtregion->origin.x;
210
211	0	if( p_updtregion->flags & UPDT_REGION_ORIGIN_Y_IS_RATIO )
212	0	r->i_y += p_updtregion->origin.y * inner_h;
213	0	else
214	0	r->i_y += p_updtregion->origin.y;
215
216	0	if( p_updtregion->flags & UPDT_REGION_EXTENT_X_IS_RATIO )
217	0	r->i_max_width += p_updtregion->extent.x * inner_w;
218	0	else
219	0	r->i_max_width += p_updtregion->extent.x;
220
221	0	if( p_updtregion->flags & UPDT_REGION_EXTENT_Y_IS_RATIO )
222	0	r->i_max_height += p_updtregion->extent.y * inner_h;
223	0	else
224	0	r->i_max_height += p_updtregion->extent.y;
225
226	0	} else {
227		/* FIXME it doesn't adapt on crop settings changes */
228	0	r->i_x = p_updtregion->origin.x * fmt_dst->i_width / p_updtregion->extent.x;
229	0	r->i_y = p_updtregion->origin.y * fmt_dst->i_height / p_updtregion->extent.y;
230	0	}
231
232		/* Add missing default style, if any, to all segments */
233	0	for ( text_segment_t* p_segment = r->p_text; p_segment; p_segment = p_segment->p_next )
234	0	{
235		/* Add decoder defaults */
236	0	if( p_segment->style )
237	0	text_style_Merge( p_segment->style, sys->p_default_style, false );
238	0	else
239	0	p_segment->style = text_style_Duplicate( sys->p_default_style );
240
241	0	if( p_segment->style )
242	0	{
243		/* Update all segments font sizes in video source %,
244		* so we can handle HiDPI properly and have consistent rendering limits */
245	0	if( p_segment->style->i_font_size > 0 && fmt_src->i_visible_height > 0 )
246	0	{
247	0	p_segment->style->f_font_relsize = 100.0 * p_segment->style->i_font_size / fmt_src->i_visible_height;
248	0	p_segment->style->i_font_size = 0;
249	0	}
250
251	0	if( p_segment->style->i_style_flags & (STYLE_BLINK_BACKGROUND\|STYLE_BLINK_FOREGROUND) )
252	0	{
253	0	if( sys->b_blink_even ) /* do nothing at first */
254	0	{
255	0	if( p_segment->style->i_style_flags & STYLE_BLINK_BACKGROUND )
256	0	p_segment->style->i_background_alpha =
257	0	(~p_segment->style->i_background_alpha) & 0xFF;
258	0	if( p_segment->style->i_style_flags & STYLE_BLINK_FOREGROUND )
259	0	p_segment->style->i_font_alpha =
260	0	(~p_segment->style->i_font_alpha) & 0xFF;
261	0	}
262	0	b_schedule_blink_update = true;
263	0	}
264	0	}
265	0	}
266	0	}
267
268	0	if( b_schedule_blink_update &&
269	0	(sys->i_next_update == VLC_TICK_INVALID \|\| sys->i_next_update < ts) )
270	0	{
271	0	sys->i_next_update = ts + VLC_TICK_FROM_SEC(1);
272	0	sys->b_blink_even = !sys->b_blink_even;
273	0	}
274	0	} Unexecuted instantiation: substtml.c:SubpictureTextUpdate Unexecuted instantiation: subsvtt.c:SubpictureTextUpdate
275		static void SubpictureTextDestroy(subpicture_t *subpic)
276	0	{
277	0	subtext_updater_sys_t *sys = subpic->updater.p_sys;
278
279	0	SubpictureUpdaterSysRegionClean( &sys->region );
280	0	substext_updater_region_t *p_region = sys->region.p_next;
281	0	while( p_region )
282	0	{
283	0	substext_updater_region_t *p_next = p_region->p_next;
284	0	SubpictureUpdaterSysRegionClean( p_region );
285	0	free( p_region );
286	0	p_region = p_next;
287	0	}
288	0	text_style_Delete( sys->p_default_style );
289	0	free(sys);
290	0	} Unexecuted instantiation: substtml.c:SubpictureTextDestroy Unexecuted instantiation: subsvtt.c:SubpictureTextDestroy
291
292		static inline subpicture_t decoder_NewSubpictureText(decoder_t decoder)
293	0	{
294	0	subtext_updater_sys_t sys = calloc(1, sizeof(sys));
295	0	subpicture_updater_t updater = {
296	0	.pf_validate = SubpictureTextValidate,
297	0	.pf_update = SubpictureTextUpdate,
298	0	.pf_destroy = SubpictureTextDestroy,
299	0	.p_sys = sys,
300	0	};
301	0	SubpictureUpdaterSysRegionInit( &sys->region );
302	0	sys->margin_ratio = 0.04f;
303	0	sys->p_default_style = text_style_Create( STYLE_NO_DEFAULTS );
304	0	if(unlikely(!sys->p_default_style))
305	0	{
306	0	free(sys);
307	0	return NULL;
308	0	}
309	0	subpicture_t *subpic = decoder_NewSubpicture(decoder, &updater);
310	0	if (!subpic)
311	0	{
312	0	text_style_Delete(sys->p_default_style);
313	0	free(sys);
314	0	}
315	0	return subpic;
316	0	} Unexecuted instantiation: substtml.c:decoder_NewSubpictureText Unexecuted instantiation: subsvtt.c:decoder_NewSubpictureText