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Added DPI (Print-Resolution) and Pixel-Aspect awareness to vo_jpeg. 

Use -noaspect if you want Square-Px AR for anamorphic content (old behaviour).
Note: Many applications might ignore these settings, but they matter for
print design and video editing (Tested with Photoshop).


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@17437 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
atmos4 2006-01-20 01:37:15 +00:00
parent f05206761e
commit 3cb89b0765
1 changed files with 21 additions and 1 deletions
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20
libvo/vo_jpeg.c
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@ -67,12 +67,15 @@ LIBVO_EXTERN (jpeg)
static int image_width;
static int image_height;
static int image_d_width;
static int image_d_height;
int jpeg_baseline = 1;
int jpeg_progressive_mode = 0;
int jpeg_optimize = 100;
int jpeg_smooth = 0;
int jpeg_quality = 75;
int jpeg_dpi = 72; /** Screen resolution = 72 dpi */
char *jpeg_outdir = NULL;
char *jpeg_subdirs = NULL;
int jpeg_maxfiles = 1000;
@ -158,6 +161,9 @@ static int config(uint32_t width, uint32_t height, uint32_t d_width,
image_height = height;
image_width = width;
/* Save for JFIF-Header PAR */
image_d_width = d_width;
image_d_height = d_height;
return 0;
}
@ -192,6 +198,17 @@ static uint32_t jpeg_write(uint8_t * name, uint8_t * buffer)
cinfo.in_color_space = JCS_RGB;
jpeg_set_defaults(&cinfo);
/* Important: Header info must be set AFTER jpeg_set_defaults() */
cinfo.write_JFIF_header = TRUE;
cinfo.JFIF_major_version = 1;
cinfo.JFIF_minor_version = 2;
cinfo.density_unit = 1; /* 0=unknown, 1=dpi, 2=dpcm */
/* Image DPI is determined by Y_density, so we leave that at
jpeg_dpi if possible and crunch X_density instead (PAR > 1) */
cinfo.X_density = jpeg_dpi*image_width/image_d_width;
cinfo.Y_density = jpeg_dpi*image_height/image_d_height;
cinfo.write_Adobe_marker = TRUE;
jpeg_set_quality(&cinfo,jpeg_quality, jpeg_baseline);
cinfo.optimize_coding = jpeg_optimize;
cinfo.smoothing_factor = jpeg_smooth;
@ -324,6 +341,7 @@ static int preinit(const char *arg)
(opt_test_f)int_zero_hundred, 0},
{"quality", OPT_ARG_INT, &jpeg_quality,
(opt_test_f)int_zero_hundred, 0},
{"dpi", OPT_ARG_INT, &jpeg_dpi, NULL, 0},
{"outdir", OPT_ARG_MSTRZ, &jpeg_outdir, NULL, 0},
{"subdirs", OPT_ARG_MSTRZ, &jpeg_subdirs, NULL, 0},
{"maxfiles", OPT_ARG_INT, &jpeg_maxfiles, (opt_test_f)int_pos, 0},
@ -361,6 +379,8 @@ static int preinit(const char *arg)
jpeg_smooth);
mp_msg(MSGT_VO, MSGL_V, "%s: quality --> %d\n", info.short_name,
jpeg_quality);
mp_msg(MSGT_VO, MSGL_V, "%s: dpi --> %d\n", info.short_name,
jpeg_dpi);
mp_msg(MSGT_VO, MSGL_V, "%s: outdir --> %s\n", info.short_name,
jpeg_outdir);
if (jpeg_subdirs) {