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Diffstat (limited to 'libavfilter/libmpcodecs/vf_tile.c')
-rw-r--r-- | libavfilter/libmpcodecs/vf_tile.c | 330 |
1 files changed, 330 insertions, 0 deletions
diff --git a/libavfilter/libmpcodecs/vf_tile.c b/libavfilter/libmpcodecs/vf_tile.c new file mode 100644 index 0000000..9ec037e --- /dev/null +++ b/libavfilter/libmpcodecs/vf_tile.c @@ -0,0 +1,330 @@ +/* + * filter to tile a serie of image in a single, bigger, image + * + * The parameters are: + * + * xtile: number of tile on the x axis (5) + * ytile: number of tile on the y axis (5) + * xytile: when write the image, it can be different then xtile * ytile + * (for example you can write 8 * 7 tile, writing the file every + * 50 frame, to have one image every 2 seconds @ 25 fps ). + * start: pixel at the start (x/y), default 2 + * delta: pixel between 2 tile, (x/y), default 4 + * + * For example a valid command line is: + * ... -vf tile=10:5:-1:4:8 ... + * that make images of 10 * 5 tiles, with 4 pixel at the beginning and + * 8 pixel between tiles. + * + * The default command is: + * ... -vf tile=5:5:25:2:4 + * + * If you omit a parameter or put a value less then 0, the default is used. + * ... -vf tile=10:5::-1:10 + * + * You can also stop when you're ok + * ... -vf tile=10:5 + * (and this is probably the option you will use more often ...) + * + * Probably is good to put the scale filter before the tile :-) + * + * copyright (c) 2003 Daniele Forghieri ( guru@digitalfantasy.it ) + * + * This file is part of MPlayer. + * + * MPlayer is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * MPlayer 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with MPlayer; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +// strtoi memcpy_pic + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "config.h" +#include "mp_msg.h" +#include "help_mp.h" +#include "cpudetect.h" + +#include "img_format.h" +#include "mp_image.h" +#include "vf.h" + +#include "libvo/fastmemcpy.h" + +/* private data */ +struct vf_priv_s { + /* configuration data */ + /* Number on hor/ver tiles */ + int xtile; + int ytile; + /* When write the whole frame (default = xtile * ytile) */ + int xytile; + /* pixel at start / end (default = 4) */ + int start; + /* pixel between image (default = 2) */ + int delta; +// /* Background color, in destination format */ +// int bkgSet; + + /* Work data */ + int frame_cur; +}; + + +static int config(struct vf_instance *vf, + int width, int height, int d_width, int d_height, + unsigned int flags, unsigned int outfmt){ + + struct vf_priv_s *priv; + int xw; + int yh; + + /* Calculate new destination size */ + priv = vf->priv; + xw = priv->start * 2 + + priv->xtile * width + + (priv->xtile - 1) * priv->delta; + yh = priv->start * 2 + + priv->ytile * height + + (priv->ytile - 1) * priv->delta; + + mp_msg(MSGT_VFILTER,MSGL_V,"vf_tile:config size set to %d * %d\n", xw, yh); + + return vf_next_config(vf, xw, yh, xw, yh, flags, outfmt); +} + +/* Filter handler */ +static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts) +{ + mp_image_t *dmpi; + struct vf_priv_s *priv; + int t; + int xw; + int yh; + int xi; + int yi; + int by; + int dw; + + /* Calculate new size */ + priv = vf->priv; + xw = priv->start * 2 + + priv->xtile * mpi->w + + (priv->xtile - 1) * priv->delta; + yh = priv->start * 2 + + priv->ytile * mpi->h+ + (priv->ytile - 1) * priv->delta; + + /* Get the big image! */ + dmpi=vf_get_image(vf->next, mpi->imgfmt, + MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE, + xw, yh); + + /* bytes x pixel & bytes x line */ + if (mpi->flags & MP_IMGFLAG_PLANAR) { + by = 1; + dw = mpi->w; + } + else { + by = (mpi->bpp + 7) / 8; + dw = mpi->w * by; + } + /* Index position */ + t = priv->frame_cur % priv->xytile; +// if ((t == 0) && (bkg != 0)) { +// /* First frame, delete the background */ +// +// } + + /* Position of image */ + xi = priv->start + (mpi->w + priv->delta) * (t % priv->xtile); + yi = priv->start + (mpi->h + priv->delta) * (t / priv->xtile); + + /* Copy first (or only) plane */ + memcpy_pic( dmpi->planes[0] + xi * by + yi * dmpi->stride[0], + mpi->planes[0], + dw, + mpi->h, + dmpi->stride[0], + mpi->stride[0]); + + if (mpi->flags & MP_IMGFLAG_PLANAR) { + /* Copy the other 2 planes */ + memcpy_pic( dmpi->planes[1] + (xi >> mpi->chroma_x_shift) + (yi >> mpi->chroma_y_shift) * dmpi->stride[1], + mpi->planes[1], + mpi->chroma_width, + mpi->chroma_height, + dmpi->stride[1], + mpi->stride[1]); + memcpy_pic( dmpi->planes[2] + (xi >> mpi->chroma_x_shift) + (yi >> mpi->chroma_y_shift) * dmpi->stride[2], + mpi->planes[2], + mpi->chroma_width, + mpi->chroma_height, + dmpi->stride[2], + mpi->stride[2]); + } + + /* Increment current frame */ + ++priv->frame_cur; + + if (t == priv->xytile - 1) { + /* Display the composition */ + dmpi->width = xw; + dmpi->height = yh; + return vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE); + } + else { + /* Skip the frame */ + return 0; + } +} + +static void uninit(struct vf_instance *vf) +{ + /* free local data */ + free(vf->priv); +} + +/* rgb/bgr 12...32 supported & some Yxxx */ +static int query_format(struct vf_instance *vf, unsigned int fmt) +{ + switch (fmt) { + /* rgb 12...32 bit */ + case IMGFMT_RGB12: + case IMGFMT_RGB15: + case IMGFMT_RGB16: + case IMGFMT_RGB24: + case IMGFMT_RGB32: + /* bgr 12...32 bit */ + case IMGFMT_BGR12: + case IMGFMT_BGR15: + case IMGFMT_BGR16: + case IMGFMT_BGR24: + case IMGFMT_BGR32: + /* Various Yxxx Formats */ + case IMGFMT_444P: + case IMGFMT_422P: + case IMGFMT_411P: + case IMGFMT_YUY2: + case IMGFMT_YV12: + case IMGFMT_I420: + case IMGFMT_YVU9: + case IMGFMT_IF09: + case IMGFMT_IYUV: + return vf_next_query_format(vf, fmt); + } + return 0; +} + +/* Get an integer from the string pointed by s, adjusting s. + * If the value is less then 0 def_val is used. + * Return 0 for ok + * + * Look below ( in vf_open(...) ) for a use ... + */ +static int parse_int(char **s, int *rt, int def_val) +{ + + int t = 0; + + if (**s) { + /* Get value (dec, hex or octal) */ + t = strtol( *s, s, 0 ); + + /* Use default */ + if (t < 0) { + t = def_val; + } + + if (**s == ':') { + /* Point to next character (problably a digit) */ + ++(*s); + } + else if (**s != '\0') { + /* Error, we got some wrong char */ + return 1; + } + } + else { + t = def_val; + } + + *rt = t; + return 0; + +} + +/* Main entry funct for the filter */ +static int vf_open(vf_instance_t *vf, char *args) +{ + struct vf_priv_s *p; + int er; + + vf->put_image = put_image; + vf->query_format = query_format; + vf->config = config; + vf->uninit = uninit; + vf->default_reqs = VFCAP_ACCEPT_STRIDE; + /* Private data */ + vf->priv = p = calloc(1, sizeof(struct vf_priv_s)); + if (p == NULL) { + return 0; + } + + if (args == NULL) { + /* Use the default */ + args = ""; + } + /* Parse all the arguments */ + er = parse_int( &args, &p->xtile, 5 ); + er |= parse_int( &args, &p->ytile, 5 ); + er |= parse_int( &args, &p->xytile, 0 ); + er |= parse_int( &args, &p->start, 2 ); + er |= parse_int( &args, &p->delta, 4 ); +// er |= parse_int( &args, &p->bkgSet, 0 ); + + if (er) { + mp_msg(MSGT_VFILTER, MSGL_ERR, MSGTR_MPCODECS_ErrorParsingArgument); + return 0; + } + /* Load some default */ + if ((p->xytile <= 0) || (p->xytile > p->xtile * p->ytile)) { + p->xytile = p->xtile * p->ytile; + } + + /* Say what happen: use mp_msg(...)? */ + if ( mp_msg_test(MSGT_VFILTER,MSGL_V) ) { + printf("vf_tile: tiling %d * %d, output every %d frames\n", + p->xtile, + p->ytile, + p->xytile); + printf("vf_tile: start pixel %d, delta pixel %d\n", + p->start, + p->delta); +// printf("vf_tile: background 0x%x\n", +// p->bkgSet); + } + return 1; +} + +const vf_info_t vf_info_tile = { + "Make a single image tiling x/y images", + "tile", + "Daniele Forghieri", + "", + vf_open, + NULL +}; |