diff options
author | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2011-07-17 19:07:39 +0400 |
---|---|---|
committer | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2011-07-23 12:55:50 +0400 |
commit | cc0dc50d027b8aca27b07ef5cededde2e9d96d57 (patch) | |
tree | 66d678c57337f127329c7ea307e5ec09a5875b43 /libavfilter/libmpcodecs | |
parent | 00a9ac424eeb273785cc529f14e481ff88c02eac (diff) |
vf_mp: remove blackframe filter wrapper
blackframe is integrated as a native filter.
Diffstat (limited to 'libavfilter/libmpcodecs')
-rw-r--r-- | libavfilter/libmpcodecs/vf_blackframe.c | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/libavfilter/libmpcodecs/vf_blackframe.c b/libavfilter/libmpcodecs/vf_blackframe.c deleted file mode 100644 index c72552c99e..0000000000 --- a/libavfilter/libmpcodecs/vf_blackframe.c +++ /dev/null @@ -1,148 +0,0 @@ -/* - * detect frames that are (almost) black - * search for black frames to detect scene transitions - * (c) 2006 Julian Hall - * - * based on code designed for skipping commercials - * (c) 2002-2003 Brian J. Murrell - * - * cleanup, simplify, speedup (c) 2006 by Ivo van Poorten - * - * 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. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "config.h" -#include "mp_msg.h" - -#include "img_format.h" -#include "mp_image.h" -#include "vf.h" - -struct vf_priv_s { - unsigned int bamount, bthresh, frame, lastkeyframe; -}; - -static int config(struct vf_instance *vf, int width, int height, int d_width, - int d_height, unsigned int flags, unsigned int outfmt) { - return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt); -} - -static int query_format(struct vf_instance *vf, unsigned fmt) { - switch(fmt) { - case IMGFMT_YVU9: - case IMGFMT_IF09: - case IMGFMT_YV12: - case IMGFMT_I420: - case IMGFMT_IYUV: - case IMGFMT_CLPL: - case IMGFMT_Y800: - case IMGFMT_Y8: - case IMGFMT_NV12: - case IMGFMT_NV21: - case IMGFMT_444P: - case IMGFMT_422P: - case IMGFMT_411P: - case IMGFMT_HM12: - return vf_next_query_format(vf, fmt); - } - return 0; -} - -static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){ - mp_image_t *dmpi; - int x, y; - int nblack=0, pblack=0; - unsigned char *yplane = mpi->planes[0]; - unsigned int ystride = mpi->stride[0]; - int pict_type = mpi->pict_type; - int w = mpi->w, h = mpi->h; - int bthresh = vf->priv->bthresh; - int bamount = vf->priv->bamount; - static const char *const picttypes[4] = { "unknown", "I", "P", "B" }; - - for (y=1; y<=h; y++) { - for (x=0; x<w; x++) - nblack += yplane[x] < bthresh; - pblack = nblack*100/(w*y); - if (pblack < bamount) break; - yplane += ystride; - } - - if (pict_type > 3 || pict_type < 0) pict_type = 0; - if (pict_type == 1) vf->priv->lastkeyframe = vf->priv->frame; - - if (pblack >= bamount) - mp_msg(MSGT_VFILTER, MSGL_INFO,"vf_blackframe: %u, %i%%, %s (I:%u)\n", - vf->priv->frame, pblack, picttypes[pict_type], - vf->priv->lastkeyframe); - - vf->priv->frame++; - - dmpi = vf_get_image(vf->next, mpi->imgfmt, MP_IMGTYPE_EXPORT, 0, - mpi->width, mpi->height); - dmpi->planes[0] = mpi->planes[0]; - dmpi->stride[0] = mpi->stride[0]; - dmpi->planes[1] = mpi->planes[1]; - dmpi->stride[1] = mpi->stride[1]; - dmpi->planes[2] = mpi->planes[2]; - dmpi->stride[2] = mpi->stride[2]; - - vf_clone_mpi_attributes(dmpi, mpi); - - return vf_next_put_image(vf, dmpi, pts); -} - -static int control(struct vf_instance *vf, int request, void* data){ - return vf_next_control(vf,request,data); -} - -static void uninit(struct vf_instance *vf) { - free(vf->priv); -} - -static int vf_open(vf_instance_t *vf, char *args){ - vf->priv = malloc(sizeof(struct vf_priv_s)); - if (!vf->priv) return 0; - - vf->config = config; - vf->put_image = put_image; - vf->control = control; - vf->uninit = uninit; - vf->query_format = query_format; - - vf->priv->bamount = 98; - vf->priv->bthresh = 0x20; - vf->priv->frame = 0; - vf->priv->lastkeyframe = 0; - - if (args) - sscanf(args, "%u:%u", &vf->priv->bamount, &vf->priv->bthresh); - return 1; -} - -const vf_info_t vf_info_blackframe = { - "detects black frames", - "blackframe", - "Brian J. Murrell, Julian Hall, Ivo van Poorten", - "Useful for detecting scene transitions", - vf_open, - NULL -}; |