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tiff: read more tags of type string

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2012-07-16 00:55:18 +00:00
parent 292850b634
commit 3071af6cf2
2 changed files with 63 additions and 0 deletions
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53
libavcodec/tiff.c
View File

@ -291,12 +291,32 @@ static int add_shorts_metadata(int count, const char *name,
return 0;
}
static int add_string_metadata(int count, const char *name,
TiffContext *s)
{
char *value;
if (bytestream2_get_bytes_left(&s->gb) < count)
return AVERROR_INVALIDDATA;
value = av_malloc(count + 1);
if (!value)
return AVERROR(ENOMEM);
bytestream2_get_bufferu(&s->gb, value, count);
value[count] = 0;
av_dict_set(&s->picture.metadata, name, value, AV_DICT_DONT_STRDUP_VAL);
return 0;
}
static int add_metadata(int count, int type,
const char *name, const char *sep, TiffContext *s)
{
switch(type) {
case TIFF_DOUBLE: return add_doubles_metadata(count, name, sep, s);
case TIFF_SHORT : return add_shorts_metadata(count, name, sep, s);
case TIFF_STRING: return add_string_metadata(count, name, s);
default : return AVERROR_INVALIDDATA;
};
}
@ -913,6 +933,39 @@ static int tiff_decode_tag(TiffContext *s)
}
}
break;
case TIFF_ARTIST:
ADD_METADATA(count, "artist", NULL);
break;
case TIFF_COPYRIGHT:
ADD_METADATA(count, "copyright", NULL);
break;
case TIFF_DATE:
ADD_METADATA(count, "date", NULL);
break;
case TIFF_DOCUMENT_NAME:
ADD_METADATA(count, "document_name", NULL);
break;
case TIFF_HOST_COMPUTER:
ADD_METADATA(count, "computer", NULL);
break;
case TIFF_IMAGE_DESCRIPTION:
ADD_METADATA(count, "description", NULL);
break;
case TIFF_MAKE:
ADD_METADATA(count, "make", NULL);
break;
case TIFF_MODEL:
ADD_METADATA(count, "model", NULL);
break;
case TIFF_PAGE_NAME:
ADD_METADATA(count, "page_name", NULL);
break;
case TIFF_PAGE_NUMBER:
ADD_METADATA(count, "page_number", " / ");
break;
case TIFF_SOFTWARE_NAME:
ADD_METADATA(count, "software", NULL);
break;
default:
av_log(s->avctx, AV_LOG_DEBUG, "Unknown or unsupported tag %d/0X%0X\n",
tag, tag);

10
libavcodec/tiff.h
View File

@ -41,6 +41,10 @@ enum TiffTags{
TIFF_COMPR,
TIFF_INVERT = 0x106,
TIFF_FILL_ORDER = 0x10A,
TIFF_DOCUMENT_NAME = 0x10D,
TIFF_IMAGE_DESCRIPTION = 0x10E,
TIFF_MAKE = 0x10F,
TIFF_MODEL = 0x110,
TIFF_STRIP_OFFS = 0x111,
TIFF_SAMPLES_PER_PIXEL = 0x115,
TIFF_ROWSPERSTRIP = 0x116,
@ -48,12 +52,17 @@ enum TiffTags{
TIFF_XRES = 0x11A,
TIFF_YRES = 0x11B,
TIFF_PLANAR = 0x11C,
TIFF_PAGE_NAME = 0x11D,
TIFF_XPOS = 0x11E,
TIFF_YPOS = 0x11F,
TIFF_T4OPTIONS = 0x124,
TIFF_T6OPTIONS,
TIFF_RES_UNIT = 0x128,
TIFF_PAGE_NUMBER = 0x129,
TIFF_SOFTWARE_NAME = 0x131,
TIFF_DATE = 0x132,
TIFF_ARTIST = 0x13B,
TIFF_HOST_COMPUTER = 0x13C,
TIFF_PREDICTOR = 0x13D,
TIFF_PAL = 0x140,
TIFF_TILE_WIDTH = 0x142,
@ -64,6 +73,7 @@ enum TiffTags{
TIFF_YCBCR_SUBSAMPLING = 0x212,
TIFF_YCBCR_POSITIONING = 0x213,
TIFF_REFERENCE_BW = 0x214,
TIFF_COPYRIGHT = 0x8298,
TIFF_MODEL_TIEPOINT = 0x8482,
TIFF_MODEL_PIXEL_SCALE = 0x830E,
TIFF_MODEL_TRANSFORMATION = 0x8480,