* -x <pos> x position ( >= 0) [default 0]
* -y <pos> y position ( >= 0) [default 0]
* -t <text> text to print (will be passed to strftime())
- * MANDATORY: will be used even when -T is used.
- * in this case, -t will be used if some error
+ * MANDATORY: will be used even when -T is used.
+ * in this case, -t will be used if some error
* occurs
* -T <filename> file with the text (re-read every frame)
* -c <#RRGGBB> foreground color ('internet' way) [default #ffffff]
******************************************************************************
* Author: Gustavo Sverzut Barbieri <gsbarbieri@yahoo.com.br>
*
- * This library is free software; you can redistribute it and/or
+ * 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define MAXSIZE_TEXT 1024
unsigned char fgcolor[3]; /* YUV */
FT_Library library;
FT_Face face;
- FT_Glyph glyphs[ 255 ];
+ FT_Glyph glyphs[ 255 ];
FT_Bitmap bitmaps[ 255 ];
int advance[ 255 ];
int bitmap_left[ 255 ];
}
-int ParseColor(char *text, unsigned char yuv_color[3])
+static int ParseColor(char *text, unsigned char yuv_color[3])
{
char tmp[3];
unsigned char rgb_color[3];
while ((c = getopt(argc, argv, "f:t:T:x:y:s:c:C:bo")) > 0) {
switch (c) {
case 'f':
- font = optarg;
- break;
+ font = optarg;
+ break;
case 't':
- ci->text = av_strdup(optarg);
- break;
+ ci->text = av_strdup(optarg);
+ break;
case 'T':
- ci->file = av_strdup(optarg);
- break;
+ ci->file = av_strdup(optarg);
+ break;
case 'x':
- ci->x = (unsigned int) atoi(optarg);
- break;
+ ci->x = (unsigned int) atoi(optarg);
+ break;
case 'y':
- ci->y = (unsigned int) atoi(optarg);
- break;
+ ci->y = (unsigned int) atoi(optarg);
+ break;
case 's':
- size = (unsigned int) atoi(optarg);
- break;
+ size = (unsigned int) atoi(optarg);
+ break;
case 'c':
- if (ParseColor(optarg, ci->fgcolor) == -1)
- {
- fprintf(stderr, "ERROR: Invalid foreground color: '%s'. You must specify the color in the internet way(packaged hex): #RRGGBB, ie: -c #ffffff (for white foreground)\n",optarg);
- return -1;
- }
- break;
+ if (ParseColor(optarg, ci->fgcolor) == -1)
+ {
+ av_log(NULL, AV_LOG_ERROR, "Invalid foreground color: '%s'. You must specify the color in the internet way(packaged hex): #RRGGBB, ie: -c #ffffff (for white foreground)\n", optarg);
+ return -1;
+ }
+ break;
case 'C':
- if (ParseColor(optarg, ci->bgcolor) == -1)
- {
- fprintf(stderr, "ERROR: Invalid foreground color: '%s'. You must specify the color in the internet way(packaged hex): #RRGGBB, ie: -c #ffffff (for white foreground)\n",optarg);
- return -1;
- }
- break;
+ if (ParseColor(optarg, ci->bgcolor) == -1)
+ {
+ av_log(NULL, AV_LOG_ERROR, "Invalid foreground color: '%s'. You must specify the color in the internet way(packaged hex): #RRGGBB, ie: -c #ffffff (for white foreground)\n", optarg);
+ return -1;
+ }
+ break;
case 'b':
- ci->bg=1;
- break;
+ ci->bg=1;
+ break;
case 'o':
- ci->outline=1;
- break;
+ ci->outline=1;
+ break;
case '?':
- fprintf(stderr, "ERROR: Unrecognized argument '%s'\n", argv[optind]);
- return -1;
+ av_log(NULL, AV_LOG_ERROR, "Unrecognized argument '%s'\n", argv[optind]);
+ return -1;
}
}
- if (!ci->text)
+ if (!ci->text)
{
- fprintf(stderr,"ERROR: No text provided (-t text)\n");
- return -1;
+ av_log(NULL, AV_LOG_ERROR, "No text provided (-t text)\n");
+ return -1;
}
if (ci->file)
{
- FILE *fp;
- if ((fp=fopen(ci->file, "r")) == NULL)
- {
- perror("WARNING: the file could not be opened. Using text provided with -t switch. ");
- }
- else
- {
- fclose(fp);
- }
+ FILE *fp;
+ if ((fp=fopen(ci->file, "r")) == NULL)
+ {
+ av_log(NULL, AV_LOG_INFO, "WARNING: The file could not be opened. Using text provided with -t switch: %s", strerror(errno));
+ }
+ else
+ {
+ fclose(fp);
+ }
}
if (!font)
{
- fprintf(stderr,"ERROR: No font file provided! (-f filename)\n");
- return -1;
+ av_log(NULL, AV_LOG_ERROR, "No font file provided! (-f filename)\n");
+ return -1;
}
if ((error = FT_Init_FreeType(&(ci->library))) != 0)
{
- fprintf(stderr,"ERROR: Could not load FreeType (error# %d)\n",error);
- return -1;
+ av_log(NULL, AV_LOG_ERROR, "Could not load FreeType (error# %d).\n", error);
+ return -1;
}
if ((error = FT_New_Face( ci->library, font, 0, &(ci->face) )) != 0)
{
- fprintf(stderr,"ERROR: Could not load face: %s (error# %d)\n",font, error);
- return -1;
+ av_log(NULL, AV_LOG_ERROR, "Could not load face: %s (error# %d).\n", font, error);
+ return -1;
}
-
+
if ((error = FT_Set_Pixel_Sizes( ci->face, 0, size)) != 0)
{
- fprintf(stderr,"ERROR: Could not set font size to %d pixels (error# %d)\n",size, error);
- return -1;
+ av_log(NULL, AV_LOG_ERROR, "Could not set font size to %d pixels (error# %d).\n", size, error);
+ return -1;
}
ci->use_kerning = FT_HAS_KERNING(ci->face);
yMin = 32000;
for (c=0; c < 256; c++)
{
- /* Load char */
- error = FT_Load_Char( ci->face, (unsigned char) c, FT_LOAD_RENDER | FT_LOAD_MONOCHROME );
- if (error) continue; /* ignore errors */
-
- /* Save bitmap */
- ci->bitmaps[c] = ci->face->glyph->bitmap;
- /* Save bitmap left */
- ci->bitmap_left[c] = ci->face->glyph->bitmap_left;
- /* Save bitmap top */
- ci->bitmap_top[c] = ci->face->glyph->bitmap_top;
-
- /* Save advance */
- ci->advance[c] = ci->face->glyph->advance.x >> 6;
-
- /* Save glyph */
- error = FT_Get_Glyph( ci->face->glyph, &(ci->glyphs[c]) );
- /* Save glyph index */
- ci->glyphs_index[c] = FT_Get_Char_Index( ci->face, (unsigned char) c );
-
- /* Measure text height to calculate text_height (or the maximum text height) */
- FT_Glyph_Get_CBox( ci->glyphs[ c ], ft_glyph_bbox_pixels, &bbox );
- if (bbox.yMax > yMax)
- yMax = bbox.yMax;
- if (bbox.yMin < yMin)
- yMin = bbox.yMin;
-
+ /* Load char */
+ error = FT_Load_Char( ci->face, (unsigned char) c, FT_LOAD_RENDER | FT_LOAD_MONOCHROME );
+ if (error) continue; /* ignore errors */
+
+ /* Save bitmap */
+ ci->bitmaps[c] = ci->face->glyph->bitmap;
+ /* Save bitmap left */
+ ci->bitmap_left[c] = ci->face->glyph->bitmap_left;
+ /* Save bitmap top */
+ ci->bitmap_top[c] = ci->face->glyph->bitmap_top;
+
+ /* Save advance */
+ ci->advance[c] = ci->face->glyph->advance.x >> 6;
+
+ /* Save glyph */
+ error = FT_Get_Glyph( ci->face->glyph, &(ci->glyphs[c]) );
+ /* Save glyph index */
+ ci->glyphs_index[c] = FT_Get_Char_Index( ci->face, (unsigned char) c );
+
+ /* Measure text height to calculate text_height (or the maximum text height) */
+ FT_Glyph_Get_CBox( ci->glyphs[ c ], ft_glyph_bbox_pixels, &bbox );
+ if (bbox.yMax > yMax)
+ yMax = bbox.yMax;
+ if (bbox.yMin < yMin)
+ yMin = bbox.yMin;
+
}
ci->text_height = yMax - yMin;
-inline void draw_glyph(AVPicture *picture, FT_Bitmap *bitmap, unsigned int x, unsigned int y, unsigned int width, unsigned int height, unsigned char yuv_fgcolor[3], unsigned char yuv_bgcolor[3], int outline)
+static inline void draw_glyph(AVPicture *picture, FT_Bitmap *bitmap, unsigned int x, unsigned int y, unsigned int width, unsigned int height, unsigned char yuv_fgcolor[3], unsigned char yuv_bgcolor[3], int outline)
{
int r, c;
int spixel, dpixel[3], in_glyph=0;
{
in_glyph = 0;
for (r=0; (r < bitmap->rows) && (r+y < height); r++)
- {
- for (c=0; (c < bitmap->width) && (c+x < width); c++)
- {
- /* pixel in the picture (destination) */
- GET_PIXEL(picture, dpixel, (c+x), (y+r));
-
- /* pixel in the glyph bitmap (source) */
- spixel = bitmap->buffer[r*bitmap->pitch +c/8] & (0x80>>(c%8));
-
- if (spixel)
- COPY_3(dpixel, yuv_fgcolor);
-
- if (outline)
- {
- /* border detection: */
- if ( (!in_glyph) && (spixel) )
- /* left border detected */
- {
- in_glyph = 1;
- /* draw left pixel border */
- if (c-1 >= 0)
- SET_PIXEL(picture, yuv_bgcolor, (c+x-1), (y+r));
- }
- else if ( (in_glyph) && (!spixel) )
- /* right border detected */
- {
- in_glyph = 0;
- /* 'draw' right pixel border */
- COPY_3(dpixel, yuv_bgcolor);
- }
-
- if (in_glyph)
- /* see if we have a top/bottom border */
- {
- /* top */
- if ( (r-1 >= 0) && (! bitmap->buffer[(r-1)*bitmap->pitch +c/8] & (0x80>>(c%8))) )
- /* we have a top border */
- SET_PIXEL(picture, yuv_bgcolor, (c+x), (y+r-1));
-
- /* bottom */
- if ( (r+1 < height) && (! bitmap->buffer[(r+1)*bitmap->pitch +c/8] & (0x80>>(c%8))) )
- /* we have a bottom border */
- SET_PIXEL(picture, yuv_bgcolor, (c+x), (y+r+1));
-
- }
- }
-
- SET_PIXEL(picture, dpixel, (c+x), (y+r));
- }
- }
+ {
+ for (c=0; (c < bitmap->width) && (c+x < width); c++)
+ {
+ /* pixel in the picture (destination) */
+ GET_PIXEL(picture, dpixel, (c+x), (y+r));
+
+ /* pixel in the glyph bitmap (source) */
+ spixel = bitmap->buffer[r*bitmap->pitch +c/8] & (0x80>>(c%8));
+
+ if (spixel)
+ COPY_3(dpixel, yuv_fgcolor);
+
+ if (outline)
+ {
+ /* border detection: */
+ if ( (!in_glyph) && (spixel) )
+ /* left border detected */
+ {
+ in_glyph = 1;
+ /* draw left pixel border */
+ if (c-1 >= 0)
+ SET_PIXEL(picture, yuv_bgcolor, (c+x-1), (y+r));
+ }
+ else if ( (in_glyph) && (!spixel) )
+ /* right border detected */
+ {
+ in_glyph = 0;
+ /* 'draw' right pixel border */
+ COPY_3(dpixel, yuv_bgcolor);
+ }
+
+ if (in_glyph)
+ /* see if we have a top/bottom border */
+ {
+ /* top */
+ if ( (r-1 >= 0) && (! bitmap->buffer[(r-1)*bitmap->pitch +c/8] & (0x80>>(c%8))) )
+ /* we have a top border */
+ SET_PIXEL(picture, yuv_bgcolor, (c+x), (y+r-1));
+
+ /* bottom */
+ if ( (r+1 < height) && (! bitmap->buffer[(r+1)*bitmap->pitch +c/8] & (0x80>>(c%8))) )
+ /* we have a bottom border */
+ SET_PIXEL(picture, yuv_bgcolor, (c+x), (y+r+1));
+
+ }
+ }
+
+ SET_PIXEL(picture, dpixel, (c+x), (y+r));
+ }
+ }
}
}
-inline void draw_box(AVPicture *picture, unsigned int x, unsigned int y, unsigned int width, unsigned int height, unsigned char yuv_color[3])
+static inline void draw_box(AVPicture *picture, unsigned int x, unsigned int y, unsigned int width, unsigned int height, unsigned char yuv_color[3])
{
int i, j;
for (j = 0; (j < height); j++)
- for (i = 0; (i < width); i++)
- {
- SET_PIXEL(picture, yuv_color, (i+x), (y+j));
+ for (i = 0; (i < width); i++)
+ {
+ SET_PIXEL(picture, yuv_color, (i+x), (y+j));
}
-
+
}
{
ContextInfo *ci = (ContextInfo *) ctx;
FT_Face face = ci->face;
- FT_GlyphSlot slot = face->glyph;
+ FT_GlyphSlot slot = face->glyph;
unsigned char *text = ci->text;
unsigned char c;
int x = 0, y = 0, i=0, size=0;
unsigned char tbuff[MAXSIZE_TEXT];
time_t now = time(0);
int str_w, str_w_max;
- FT_Vector pos[MAXSIZE_TEXT];
+ FT_Vector pos[MAXSIZE_TEXT];
FT_Vector delta;
- if (ci->file)
+ if (ci->file)
{
int fd = open(ci->file, O_RDONLY);
-
- if (fd < 0)
- {
- text = ci->text;
- perror("WARNING: the file could not be opened. Using text provided with -t switch. ");
- }
- else
- {
- int l = read(fd, tbuff, sizeof(tbuff) - 1);
-
- if (l >= 0)
- {
- tbuff[l] = 0;
- text = tbuff;
- }
- else
- {
- text = ci->text;
- perror("WARNING: the file could not be opened. Using text provided with -t switch. ");
- }
- close(fd);
- }
+
+ if (fd < 0)
+ {
+ text = ci->text;
+ av_log(NULL, AV_LOG_INFO, "WARNING: The file could not be opened. Using text provided with -t switch: %s", strerror(errno));
+ }
+ else
+ {
+ int l = read(fd, tbuff, sizeof(tbuff) - 1);
+
+ if (l >= 0)
+ {
+ tbuff[l] = 0;
+ text = tbuff;
+ }
+ else
+ {
+ text = ci->text;
+ av_log(NULL, AV_LOG_INFO, "WARNING: The file could not be read. Using text provided with -t switch: %s", strerror(errno));
+ }
+ close(fd);
+ }
}
else
{
text = buff;
size = strlen(text);
-
+
/* measure string size and save glyphs position*/
str_w = str_w_max = 0;
- x = ci->x;
+ x = ci->x;
y = ci->y;
for (i=0; i < size; i++)
{
/* kerning */
if ( (ci->use_kerning) && (i > 0) && (ci->glyphs_index[c]) )
- {
- FT_Get_Kerning( ci->face,
- ci->glyphs_index[ text[i-1] ],
- ci->glyphs_index[c],
- ft_kerning_default,
- &delta );
-
- x += delta.x >> 6;
- }
-
+ {
+ FT_Get_Kerning( ci->face,
+ ci->glyphs_index[ text[i-1] ],
+ ci->glyphs_index[c],
+ ft_kerning_default,
+ &delta );
+
+ x += delta.x >> 6;
+ }
+
if (( (x + ci->advance[ c ]) >= width ) || ( c == '\n' ))
- {
- str_w = width - ci->x - 1;
+ {
+ str_w = width - ci->x - 1;
- y += ci->text_height;
- x = ci->x;
- }
+ y += ci->text_height;
+ x = ci->x;
+ }
/* save position */
if (str_w > str_w_max)
- str_w_max = str_w;
+ str_w_max = str_w;
}
-
+
if (ci->bg)
{
/* Check if it doesn't pass the limits */
if ( str_w_max + ci->x >= width )
- str_w_max = width - ci->x - 1;
+ str_w_max = width - ci->x - 1;
if ( y >= height )
- y = height - 1 - 2*ci->y;
+ y = height - 1 - 2*ci->y;
/* Draw Background */
- draw_box( picture, ci->x, ci->y, str_w_max, y - ci->y, ci->bgcolor );
+ draw_box( picture, ci->x, ci->y, str_w_max, y - ci->y, ci->bgcolor );
}
c = text[i];
if (
- ( (c == '_') && (text == ci->text) ) || /* skip '_' (consider as space)
- IF text was specified in cmd line
- (which doesn't like neasted quotes) */
- ( c == '\n' ) /* Skip new line char, just go to new line */
- )
- continue;
-
- /* now, draw to our target surface */
- draw_glyph( picture,
- &(ci->bitmaps[ c ]),
- pos[i].x,
- pos[i].y,
- width,
- height,
- ci->fgcolor,
- ci->bgcolor,
- ci->outline );
-
+ ( (c == '_') && (text == ci->text) ) || /* skip '_' (consider as space)
+ IF text was specified in cmd line
+ (which doesn't like neasted quotes) */
+ ( c == '\n' ) /* Skip new line char, just go to new line */
+ )
+ continue;
+
+ /* now, draw to our target surface */
+ draw_glyph( picture,
+ &(ci->bitmaps[ c ]),
+ pos[i].x,
+ pos[i].y,
+ width,
+ height,
+ ci->fgcolor,
+ ci->bgcolor,
+ ci->outline );
+
/* increment pen position */
x += slot->advance.x >> 6;
}
projects / ffmpeg / blobdiff