#include "config.h"
#include "libavutil/avstring.h"
-#include "libavutil/colorspace.h"
#include "libavutil/file.h"
#include "libavutil/eval.h"
#include "libavutil/opt.h"
#include "libavutil/random_seed.h"
#include "libavutil/parseutils.h"
-#include "libavutil/pixdesc.h"
#include "libavutil/timecode.h"
#include "libavutil/tree.h"
#include "libavutil/lfg.h"
#include <freetype/config/ftheader.h>
#include FT_FREETYPE_H
#include FT_GLYPH_H
+#if CONFIG_FONTCONFIG
+#include <fontconfig/fontconfig.h>
+#endif
-static const char * const var_names[] = {
+static const char *const var_names[] = {
"main_w", "w", "W", ///< width of the input video
"main_h", "h", "H", ///< height of the input video
"tw", "text_w", ///< width of the rendered text
NULL
};
-static const char *fun2_names[] = {
- "rand",
+static const char *const fun2_names[] = {
+ "rand"
};
static double drand(void *opaque, double min, double max)
int x; ///< x position to start drawing text
int y; ///< y position to start drawing text
int max_glyph_w; ///< max glyph width
- int max_glyph_h; ///< max glyph heigth
+ int max_glyph_h; ///< max glyph height
int shadowx, shadowy;
unsigned int fontsize; ///< font size to use
char *fontcolor_string; ///< font color as string
char *boxcolor_string; ///< box color as string
char *shadowcolor_string; ///< shadow color as string
- uint8_t fontcolor[4]; ///< foreground color
- uint8_t boxcolor[4]; ///< background color
- uint8_t shadowcolor[4]; ///< shadow color
- uint8_t fontcolor_rgba[4]; ///< foreground color in RGBA
- uint8_t boxcolor_rgba[4]; ///< background color in RGBA
- uint8_t shadowcolor_rgba[4]; ///< shadow color in RGBA
short int draw_box; ///< draw box around text - true or false
int use_kerning; ///< font kerning is used - true/false
int tabsize; ///< tab size
int fix_bounds; ///< do we let it go out of frame bounds - t/f
+ FFDrawContext dc;
+ FFDrawColor fontcolor; ///< foreground color
+ FFDrawColor shadowcolor; ///< shadow color
+ FFDrawColor boxcolor; ///< background color
+
FT_Library library; ///< freetype font library handle
FT_Face face; ///< freetype font face handle
struct AVTreeNode *glyphs; ///< rendered glyphs, stored using the UTF-32 char code
- int hsub, vsub; ///< chroma subsampling values
- int is_packed_rgb;
- int pixel_step[4]; ///< distance in bytes between the component of each pixel
- uint8_t rgba_map[4]; ///< map RGBA offsets to the positions in the packed RGBA format
- uint8_t *box_line[4]; ///< line used for filling the box background
char *x_expr; ///< expression for x position
char *y_expr; ///< expression for y position
AVExpr *x_pexpr, *y_pexpr; ///< parsed expressions for x and y
char *tc_opt_string; ///< specified timecode option string
AVRational tc_rate; ///< frame rate for timecode
AVTimecode tc; ///< timecode context
+ int tc24hmax; ///< 1 if timecode is wrapped to 24 hours, 0 otherwise
int frame_id;
} DrawTextContext;
{"boxcolor", "set box color", OFFSET(boxcolor_string), AV_OPT_TYPE_STRING, {.str="white"}, CHAR_MIN, CHAR_MAX },
{"shadowcolor", "set shadow color", OFFSET(shadowcolor_string), AV_OPT_TYPE_STRING, {.str="black"}, CHAR_MIN, CHAR_MAX },
{"box", "set box", OFFSET(draw_box), AV_OPT_TYPE_INT, {.dbl=0}, 0, 1 },
-{"fontsize", "set font size", OFFSET(fontsize), AV_OPT_TYPE_INT, {.dbl=16}, 1, INT_MAX },
+{"fontsize", "set font size", OFFSET(fontsize), AV_OPT_TYPE_INT, {.dbl=0}, 0, INT_MAX },
{"x", "set x expression", OFFSET(x_expr), AV_OPT_TYPE_STRING, {.str="0"}, CHAR_MIN, CHAR_MAX },
{"y", "set y expression", OFFSET(y_expr), AV_OPT_TYPE_STRING, {.str="0"}, CHAR_MIN, CHAR_MAX },
{"shadowx", "set x", OFFSET(shadowx), AV_OPT_TYPE_INT, {.dbl=0}, INT_MIN, INT_MAX },
{"basetime", "set base time", OFFSET(basetime), AV_OPT_TYPE_INT64, {.dbl=AV_NOPTS_VALUE}, INT64_MIN, INT64_MAX },
{"draw", "if false do not draw", OFFSET(d_expr), AV_OPT_TYPE_STRING, {.str="1"}, CHAR_MIN, CHAR_MAX },
{"timecode", "set initial timecode", OFFSET(tc_opt_string), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX },
+{"tc24hmax", "set 24 hours max (timecode only)", OFFSET(tc24hmax), AV_OPT_TYPE_INT, {.dbl=0}, 0, 1 },
{"r", "set rate (timecode only)", OFFSET(tc_rate), AV_OPT_TYPE_RATIONAL, {.dbl=0}, 0, INT_MAX },
{"rate", "set rate (timecode only)", OFFSET(tc_rate), AV_OPT_TYPE_RATIONAL, {.dbl=0}, 0, INT_MAX },
{"fix_bounds", "if true, check and fix text coords to avoid clipping",
return ret;
}
+static int load_font_file(AVFilterContext *ctx, const char *path, int index,
+ const char **error)
+{
+ DrawTextContext *dtext = ctx->priv;
+ int err;
+
+ err = FT_New_Face(dtext->library, path, index, &dtext->face);
+ if (err) {
+ *error = FT_ERRMSG(err);
+ return AVERROR(EINVAL);
+ }
+ return 0;
+}
+
+#if CONFIG_FONTCONFIG
+static int load_font_fontconfig(AVFilterContext *ctx, const char **error)
+{
+ DrawTextContext *dtext = ctx->priv;
+ FcConfig *fontconfig;
+ FcPattern *pattern, *fpat;
+ FcResult result = FcResultMatch;
+ FcChar8 *filename;
+ int err, index;
+ double size;
+
+ fontconfig = FcInitLoadConfigAndFonts();
+ if (!fontconfig) {
+ *error = "impossible to init fontconfig\n";
+ return AVERROR(EINVAL);
+ }
+ pattern = FcNameParse(dtext->fontfile ? dtext->fontfile :
+ (uint8_t *)(intptr_t)"default");
+ if (!pattern) {
+ *error = "could not parse fontconfig pattern";
+ return AVERROR(EINVAL);
+ }
+ if (!FcConfigSubstitute(fontconfig, pattern, FcMatchPattern)) {
+ *error = "could not substitue fontconfig options"; /* very unlikely */
+ return AVERROR(EINVAL);
+ }
+ FcDefaultSubstitute(pattern);
+ fpat = FcFontMatch(fontconfig, pattern, &result);
+ if (!fpat || result != FcResultMatch) {
+ *error = "impossible to find a matching font";
+ return AVERROR(EINVAL);
+ }
+ if (FcPatternGetString (fpat, FC_FILE, 0, &filename) != FcResultMatch ||
+ FcPatternGetInteger(fpat, FC_INDEX, 0, &index ) != FcResultMatch ||
+ FcPatternGetDouble (fpat, FC_SIZE, 0, &size ) != FcResultMatch) {
+ *error = "impossible to find font information";
+ return AVERROR(EINVAL);
+ }
+ av_log(ctx, AV_LOG_INFO, "Using \"%s\"\n", filename);
+ if (!dtext->fontsize)
+ dtext->fontsize = size + 0.5;
+ err = load_font_file(ctx, filename, index, error);
+ if (err)
+ return err;
+ FcPatternDestroy(fpat);
+ FcPatternDestroy(pattern);
+ FcConfigDestroy(fontconfig);
+ return 0;
+}
+#endif
+
+static int load_font(AVFilterContext *ctx)
+{
+ DrawTextContext *dtext = ctx->priv;
+ int err;
+ const char *error = "unknown error\n";
+
+ /* load the face, and set up the encoding, which is by default UTF-8 */
+ err = load_font_file(ctx, dtext->fontfile, 0, &error);
+ if (!err)
+ return 0;
+#if CONFIG_FONTCONFIG
+ err = load_font_fontconfig(ctx, &error);
+ if (!err)
+ return 0;
+#endif
+ av_log(ctx, AV_LOG_ERROR, "Could not load font \"%s\": %s\n",
+ dtext->fontfile, error);
+ return err;
+}
+
static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
{
int err;
return err;
}
- if (!dtext->fontfile) {
+ if (!dtext->fontfile && !CONFIG_FONTCONFIG) {
av_log(ctx, AV_LOG_ERROR, "No font filename provided\n");
return AVERROR(EINVAL);
}
dtext->tc_opt_string, ctx);
if (ret < 0)
return ret;
+ if (dtext->tc24hmax)
+ dtext->tc.flags |= AV_TIMECODE_FLAG_24HOURSMAX;
if (!dtext->text)
dtext->text = av_strdup("");
}
return AVERROR(EINVAL);
}
- if ((err = av_parse_color(dtext->fontcolor_rgba, dtext->fontcolor_string, -1, ctx))) {
+ if ((err = av_parse_color(dtext->fontcolor.rgba, dtext->fontcolor_string, -1, ctx))) {
av_log(ctx, AV_LOG_ERROR,
"Invalid font color '%s'\n", dtext->fontcolor_string);
return err;
}
- if ((err = av_parse_color(dtext->boxcolor_rgba, dtext->boxcolor_string, -1, ctx))) {
+ if ((err = av_parse_color(dtext->boxcolor.rgba, dtext->boxcolor_string, -1, ctx))) {
av_log(ctx, AV_LOG_ERROR,
"Invalid box color '%s'\n", dtext->boxcolor_string);
return err;
}
- if ((err = av_parse_color(dtext->shadowcolor_rgba, dtext->shadowcolor_string, -1, ctx))) {
+ if ((err = av_parse_color(dtext->shadowcolor.rgba, dtext->shadowcolor_string, -1, ctx))) {
av_log(ctx, AV_LOG_ERROR,
"Invalid shadow color '%s'\n", dtext->shadowcolor_string);
return err;
return AVERROR(EINVAL);
}
- /* load the face, and set up the encoding, which is by default UTF-8 */
- if ((err = FT_New_Face(dtext->library, dtext->fontfile, 0, &dtext->face))) {
- av_log(ctx, AV_LOG_ERROR, "Could not load fontface from file '%s': %s\n",
- dtext->fontfile, FT_ERRMSG(err));
- return AVERROR(EINVAL);
- }
+ err = load_font(ctx);
+ if (err)
+ return err;
+ if (!dtext->fontsize)
+ dtext->fontsize = 16;
if ((err = FT_Set_Pixel_Sizes(dtext->face, 0, dtext->fontsize))) {
av_log(ctx, AV_LOG_ERROR, "Could not set font size to %d pixels: %s\n",
dtext->fontsize, FT_ERRMSG(err));
static int query_formats(AVFilterContext *ctx)
{
- static const enum PixelFormat pix_fmts[] = {
- PIX_FMT_ARGB, PIX_FMT_RGBA,
- PIX_FMT_ABGR, PIX_FMT_BGRA,
- PIX_FMT_RGB24, PIX_FMT_BGR24,
- PIX_FMT_YUV420P, PIX_FMT_YUV444P,
- PIX_FMT_YUV422P, PIX_FMT_YUV411P,
- PIX_FMT_YUV410P, PIX_FMT_YUV440P,
- PIX_FMT_NONE
- };
-
- avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
+ avfilter_set_common_pixel_formats(ctx, ff_draw_supported_pixel_formats(0));
return 0;
}
static int glyph_enu_free(void *opaque, void *elem)
{
+ Glyph *glyph = elem;
+
+ FT_Done_Glyph(*glyph->glyph);
+ av_freep(&glyph->glyph);
av_free(elem);
return 0;
}
static av_cold void uninit(AVFilterContext *ctx)
{
DrawTextContext *dtext = ctx->priv;
- int i;
av_expr_free(dtext->x_pexpr); dtext->x_pexpr = NULL;
av_expr_free(dtext->y_pexpr); dtext->y_pexpr = NULL;
+ av_expr_free(dtext->d_pexpr); dtext->d_pexpr = NULL;
av_freep(&dtext->boxcolor_string);
av_freep(&dtext->expanded_text);
av_freep(&dtext->text);
av_freep(&dtext->x_expr);
av_freep(&dtext->y_expr);
+ av_freep(&dtext->d_expr);
av_freep(&dtext->positions);
dtext->nb_positions = 0;
FT_Done_Face(dtext->face);
FT_Done_FreeType(dtext->library);
-
- for (i = 0; i < 4; i++) {
- av_freep(&dtext->box_line[i]);
- dtext->pixel_step[i] = 0;
- }
}
static inline int is_newline(uint32_t c)
{
AVFilterContext *ctx = inlink->dst;
DrawTextContext *dtext = ctx->priv;
- const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[inlink->format];
int ret;
- dtext->hsub = pix_desc->log2_chroma_w;
- dtext->vsub = pix_desc->log2_chroma_h;
-
- if ((ret =
- ff_fill_line_with_color(dtext->box_line, dtext->pixel_step,
- inlink->w, dtext->boxcolor,
- inlink->format, dtext->boxcolor_rgba,
- &dtext->is_packed_rgb, dtext->rgba_map)) < 0)
- return ret;
-
- if (!dtext->is_packed_rgb) {
- uint8_t *rgba = dtext->fontcolor_rgba;
- dtext->fontcolor[0] = RGB_TO_Y_CCIR(rgba[0], rgba[1], rgba[2]);
- dtext->fontcolor[1] = RGB_TO_U_CCIR(rgba[0], rgba[1], rgba[2], 0);
- dtext->fontcolor[2] = RGB_TO_V_CCIR(rgba[0], rgba[1], rgba[2], 0);
- dtext->fontcolor[3] = rgba[3];
- rgba = dtext->shadowcolor_rgba;
- dtext->shadowcolor[0] = RGB_TO_Y_CCIR(rgba[0], rgba[1], rgba[2]);
- dtext->shadowcolor[1] = RGB_TO_U_CCIR(rgba[0], rgba[1], rgba[2], 0);
- dtext->shadowcolor[2] = RGB_TO_V_CCIR(rgba[0], rgba[1], rgba[2], 0);
- dtext->shadowcolor[3] = rgba[3];
- }
+ ff_draw_init(&dtext->dc, inlink->format, 0);
+ ff_draw_color(&dtext->dc, &dtext->fontcolor, dtext->fontcolor.rgba);
+ ff_draw_color(&dtext->dc, &dtext->shadowcolor, dtext->shadowcolor.rgba);
+ ff_draw_color(&dtext->dc, &dtext->boxcolor, dtext->boxcolor.rgba);
dtext->var_values[VAR_w] = dtext->var_values[VAR_W] = dtext->var_values[VAR_MAIN_W] = inlink->w;
dtext->var_values[VAR_h] = dtext->var_values[VAR_H] = dtext->var_values[VAR_MAIN_H] = inlink->h;
dtext->var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ? av_q2d(inlink->sample_aspect_ratio) : 1;
dtext->var_values[VAR_DAR] = (double)inlink->w / inlink->h * dtext->var_values[VAR_SAR];
- dtext->var_values[VAR_HSUB] = 1<<pix_desc->log2_chroma_w;
- dtext->var_values[VAR_VSUB] = 1<<pix_desc->log2_chroma_h;
+ dtext->var_values[VAR_HSUB] = 1 << dtext->dc.hsub_max;
+ dtext->var_values[VAR_VSUB] = 1 << dtext->dc.vsub_max;
dtext->var_values[VAR_X] = NAN;
dtext->var_values[VAR_Y] = NAN;
if (!dtext->reinit)
return AVERROR(ENOSYS);
}
-#define GET_BITMAP_VAL(r, c) \
- bitmap->pixel_mode == FT_PIXEL_MODE_MONO ? \
- (bitmap->buffer[(r) * bitmap->pitch + ((c)>>3)] & (0x80 >> ((c)&7))) * 255 : \
- bitmap->buffer[(r) * bitmap->pitch + (c)]
-
-#define SET_PIXEL_YUV(picref, yuva_color, val, x, y, hsub, vsub) { \
- luma_pos = ((x) ) + ((y) ) * picref->linesize[0]; \
- alpha = yuva_color[3] * (val) * 129; \
- picref->data[0][luma_pos] = (alpha * yuva_color[0] + (255*255*129 - alpha) * picref->data[0][luma_pos] ) >> 23; \
- if (((x) & ((1<<(hsub)) - 1)) == 0 && ((y) & ((1<<(vsub)) - 1)) == 0) {\
- chroma_pos1 = ((x) >> (hsub)) + ((y) >> (vsub)) * picref->linesize[1]; \
- chroma_pos2 = ((x) >> (hsub)) + ((y) >> (vsub)) * picref->linesize[2]; \
- picref->data[1][chroma_pos1] = (alpha * yuva_color[1] + (255*255*129 - alpha) * picref->data[1][chroma_pos1]) >> 23; \
- picref->data[2][chroma_pos2] = (alpha * yuva_color[2] + (255*255*129 - alpha) * picref->data[2][chroma_pos2]) >> 23; \
- }\
-}
-
-static inline int draw_glyph_yuv(AVFilterBufferRef *picref, FT_Bitmap *bitmap,
- int x, int y, int width, int height,
- const uint8_t yuva_color[4], int hsub, int vsub)
-{
- int r, c, alpha;
- unsigned int luma_pos, chroma_pos1, chroma_pos2;
- uint8_t src_val;
-
- for (r = 0; r < bitmap->rows && r+y < height; r++) {
- for (c = 0; c < bitmap->width && c+x < width; c++) {
- if (c+x < 0 || r+y < 0)
- continue;
-
- /* get intensity value in the glyph bitmap (source) */
- src_val = GET_BITMAP_VAL(r, c);
- if (!src_val)
- continue;
-
- SET_PIXEL_YUV(picref, yuva_color, src_val, c+x, y+r, hsub, vsub);
- }
- }
-
- return 0;
-}
-
-#define SET_PIXEL_RGB(picref, rgba_color, val, x, y, pixel_step, r_off, g_off, b_off, a_off) { \
- p = picref->data[0] + (x) * pixel_step + ((y) * picref->linesize[0]); \
- alpha = rgba_color[3] * (val) * 129; \
- *(p+r_off) = (alpha * rgba_color[0] + (255*255*129 - alpha) * *(p+r_off)) >> 23; \
- *(p+g_off) = (alpha * rgba_color[1] + (255*255*129 - alpha) * *(p+g_off)) >> 23; \
- *(p+b_off) = (alpha * rgba_color[2] + (255*255*129 - alpha) * *(p+b_off)) >> 23; \
-}
-
-static inline int draw_glyph_rgb(AVFilterBufferRef *picref, FT_Bitmap *bitmap,
- int x, int y, int width, int height, int pixel_step,
- const uint8_t rgba_color[4], const uint8_t rgba_map[4])
-{
- int r, c, alpha;
- uint8_t *p;
- uint8_t src_val;
-
- for (r = 0; r < bitmap->rows && r+y < height; r++) {
- for (c = 0; c < bitmap->width && c+x < width; c++) {
- if (c+x < 0 || r+y < 0)
- continue;
- /* get intensity value in the glyph bitmap (source) */
- src_val = GET_BITMAP_VAL(r, c);
- if (!src_val)
- continue;
-
- SET_PIXEL_RGB(picref, rgba_color, src_val, c+x, y+r, pixel_step,
- rgba_map[0], rgba_map[1], rgba_map[2], rgba_map[3]);
- }
- }
-
- return 0;
-}
-
-static inline void drawbox(AVFilterBufferRef *picref, int x, int y,
- int width, int height,
- uint8_t *line[4], int pixel_step[4], uint8_t color[4],
- int hsub, int vsub, int is_rgba_packed, uint8_t rgba_map[4])
-{
- int i, j, alpha;
-
- if (color[3] != 0xFF) {
- if (is_rgba_packed) {
- uint8_t *p;
- for (j = 0; j < height; j++)
- for (i = 0; i < width; i++)
- SET_PIXEL_RGB(picref, color, 255, i+x, y+j, pixel_step[0],
- rgba_map[0], rgba_map[1], rgba_map[2], rgba_map[3]);
- } else {
- unsigned int luma_pos, chroma_pos1, chroma_pos2;
- for (j = 0; j < height; j++)
- for (i = 0; i < width; i++)
- SET_PIXEL_YUV(picref, color, 255, i+x, y+j, hsub, vsub);
- }
- } else {
- ff_draw_rectangle(picref->data, picref->linesize,
- line, pixel_step, hsub, vsub,
- x, y, width, height);
- }
-}
-
static int draw_glyphs(DrawTextContext *dtext, AVFilterBufferRef *picref,
- int width, int height, const uint8_t rgbcolor[4], const uint8_t yuvcolor[4], int x, int y)
+ int width, int height, const uint8_t rgbcolor[4], FFDrawColor *color, int x, int y)
{
char *text = dtext->expanded_text;
uint32_t code = 0;
x1 = dtext->positions[i].x+dtext->x+x;
y1 = dtext->positions[i].y+dtext->y+y;
- if (dtext->is_packed_rgb) {
- draw_glyph_rgb(picref, &glyph->bitmap,
- x1, y1, width, height,
- dtext->pixel_step[0], rgbcolor, dtext->rgba_map);
- } else {
- draw_glyph_yuv(picref, &glyph->bitmap,
- x1, y1, width, height,
- yuvcolor, dtext->hsub, dtext->vsub);
- }
+ ff_blend_mask(&dtext->dc, color,
+ picref->data, picref->linesize, width, height,
+ glyph->bitmap.buffer, glyph->bitmap.pitch,
+ glyph->bitmap.width, glyph->bitmap.rows,
+ glyph->bitmap.pixel_mode == FT_PIXEL_MODE_MONO ? 0 : 3,
+ 0, x1, y1);
}
return 0;
if(!dtext->draw)
return 0;
- dtext->x &= ~((1 << dtext->hsub) - 1);
- dtext->y &= ~((1 << dtext->vsub) - 1);
-
box_w = FFMIN(width - 1 , max_text_line_w);
box_h = FFMIN(height - 1, y + dtext->max_glyph_h);
/* draw box */
if (dtext->draw_box)
- drawbox(picref, dtext->x, dtext->y, box_w, box_h,
- dtext->box_line, dtext->pixel_step, dtext->is_packed_rgb ? dtext->boxcolor_rgba : dtext->boxcolor,
- dtext->hsub, dtext->vsub, dtext->is_packed_rgb, dtext->rgba_map);
+ ff_blend_rectangle(&dtext->dc, &dtext->boxcolor,
+ picref->data, picref->linesize, width, height,
+ dtext->x, dtext->y, box_w, box_h);
if (dtext->shadowx || dtext->shadowy) {
- if ((ret = draw_glyphs(dtext, picref, width, height, dtext->shadowcolor_rgba,
- dtext->shadowcolor, dtext->shadowx, dtext->shadowy)) < 0)
+ if ((ret = draw_glyphs(dtext, picref, width, height, dtext->shadowcolor.rgba,
+ &dtext->shadowcolor, dtext->shadowx, dtext->shadowy)) < 0)
return ret;
}
- if ((ret = draw_glyphs(dtext, picref, width, height, dtext->fontcolor_rgba,
- dtext->fontcolor, 0, 0)) < 0)
+ if ((ret = draw_glyphs(dtext, picref, width, height, dtext->fontcolor.rgba,
+ &dtext->fontcolor, 0, 0)) < 0)
return ret;
return 0;
projects / ffmpeg / blobdiff