#if CONFIG_ZLIB
#include <zlib.h>
#endif
+#include "libavutil/opt.h"
#include "bytestream.h"
#include "tiff.h"
#include "rle.h"
};
typedef struct TiffEncoderContext {
+ AVClass *avclass;
AVCodecContext *avctx;
AVFrame picture;
int buf_size; ///< buffer size
uint16_t subsampling[2]; ///< YUV subsampling factors
struct LZWEncodeState *lzws; ///< LZW Encode state
+ uint32_t dpi; ///< image resolution in DPI
} TiffEncoderContext;
uint32_t *strip_sizes = NULL;
uint32_t *strip_offsets = NULL;
int bytes_per_row;
- uint32_t res[2] = { 72, 1 }; // image resolution (72/1)
+ uint32_t res[2] = { s->dpi, 1 }; // image resolution (72/1)
uint16_t bpp_tab[] = { 8, 8, 8, 8 };
int ret = -1;
int is_yuv = 0;
return ret;
}
+static const AVOption options[]={
+{"dpi", "set the image resolution (in dpi)", offsetof(TiffEncoderContext, dpi), FF_OPT_TYPE_INT, {.dbl = 72}, 1, 0x10000, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_ENCODING_PARAM},
+{NULL}
+};
+static const AVClass class = { "tiff", av_default_item_name, options, LIBAVUTIL_VERSION_INT };
+
AVCodec ff_tiff_encoder = {
.name = "tiff",
.type = AVMEDIA_TYPE_VIDEO,
PIX_FMT_YUV411P,
PIX_FMT_NONE},
.long_name = NULL_IF_CONFIG_SMALL("TIFF image"),
+ .priv_class= &class,
};