diff options
Diffstat (limited to 'libavfilter/libmpcodecs/mp_image.c')
| -rw-r--r-- | libavfilter/libmpcodecs/mp_image.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/libavfilter/libmpcodecs/mp_image.c b/libavfilter/libmpcodecs/mp_image.c new file mode 100644 index 0000000..bd6d33f --- /dev/null +++ b/libavfilter/libmpcodecs/mp_image.c @@ -0,0 +1,200 @@ +/* + * 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 "config.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#if HAVE_MALLOC_H +#include <malloc.h> +#endif + +#include "img_format.h" +#include "mp_image.h" + +#include "libvo/fastmemcpy.h" +//#include "libavutil/mem.h" + +void mp_image_alloc_planes(mp_image_t *mpi) { + // IF09 - allocate space for 4. plane delta info - unused + if (mpi->imgfmt == IMGFMT_IF09) { + mpi->planes[0]=av_malloc(mpi->bpp*mpi->width*(mpi->height+2)/8+ + mpi->chroma_width*mpi->chroma_height); + } else + mpi->planes[0]=av_malloc(mpi->bpp*mpi->width*(mpi->height+2)/8); + if (mpi->flags&MP_IMGFLAG_PLANAR) { + int bpp = IMGFMT_IS_YUVP16(mpi->imgfmt)? 2 : 1; + // YV12/I420/YVU9/IF09. feel free to add other planar formats here... + mpi->stride[0]=mpi->stride[3]=bpp*mpi->width; + if(mpi->num_planes > 2){ + mpi->stride[1]=mpi->stride[2]=bpp*mpi->chroma_width; + if(mpi->flags&MP_IMGFLAG_SWAPPED){ + // I420/IYUV (Y,U,V) + mpi->planes[1]=mpi->planes[0]+mpi->stride[0]*mpi->height; + mpi->planes[2]=mpi->planes[1]+mpi->stride[1]*mpi->chroma_height; + if (mpi->num_planes > 3) + mpi->planes[3]=mpi->planes[2]+mpi->stride[2]*mpi->chroma_height; + } else { + // YV12,YVU9,IF09 (Y,V,U) + mpi->planes[2]=mpi->planes[0]+mpi->stride[0]*mpi->height; + mpi->planes[1]=mpi->planes[2]+mpi->stride[1]*mpi->chroma_height; + if (mpi->num_planes > 3) + mpi->planes[3]=mpi->planes[1]+mpi->stride[1]*mpi->chroma_height; + } + } else { + // NV12/NV21 + mpi->stride[1]=mpi->chroma_width; + mpi->planes[1]=mpi->planes[0]+mpi->stride[0]*mpi->height; + } + } else { + mpi->stride[0]=mpi->width*mpi->bpp/8; + if (mpi->flags & MP_IMGFLAG_RGB_PALETTE) + mpi->planes[1] = av_malloc(1024); + } + mpi->flags|=MP_IMGFLAG_ALLOCATED; +} + +mp_image_t* alloc_mpi(int w, int h, unsigned long int fmt) { + mp_image_t* mpi = new_mp_image(w,h); + + mp_image_setfmt(mpi,fmt); + mp_image_alloc_planes(mpi); + + return mpi; +} + +void copy_mpi(mp_image_t *dmpi, mp_image_t *mpi) { + if(mpi->flags&MP_IMGFLAG_PLANAR){ + memcpy_pic(dmpi->planes[0],mpi->planes[0], mpi->w, mpi->h, + dmpi->stride[0],mpi->stride[0]); + memcpy_pic(dmpi->planes[1],mpi->planes[1], mpi->chroma_width, mpi->chroma_height, + dmpi->stride[1],mpi->stride[1]); + memcpy_pic(dmpi->planes[2], mpi->planes[2], mpi->chroma_width, mpi->chroma_height, + dmpi->stride[2],mpi->stride[2]); + } else { + memcpy_pic(dmpi->planes[0],mpi->planes[0], + mpi->w*(dmpi->bpp/8), mpi->h, + dmpi->stride[0],mpi->stride[0]); + } +} + +void mp_image_setfmt(mp_image_t* mpi,unsigned int out_fmt){ + mpi->flags&=~(MP_IMGFLAG_PLANAR|MP_IMGFLAG_YUV|MP_IMGFLAG_SWAPPED); + mpi->imgfmt=out_fmt; + // compressed formats + if(out_fmt == IMGFMT_MPEGPES || + out_fmt == IMGFMT_ZRMJPEGNI || out_fmt == IMGFMT_ZRMJPEGIT || out_fmt == IMGFMT_ZRMJPEGIB || + IMGFMT_IS_HWACCEL(out_fmt)){ + mpi->bpp=0; + return; + } + mpi->num_planes=1; + if (IMGFMT_IS_RGB(out_fmt)) { + if (IMGFMT_RGB_DEPTH(out_fmt) < 8 && !(out_fmt&128)) + mpi->bpp = IMGFMT_RGB_DEPTH(out_fmt); + else + mpi->bpp=(IMGFMT_RGB_DEPTH(out_fmt)+7)&(~7); + return; + } + if (IMGFMT_IS_BGR(out_fmt)) { + if (IMGFMT_BGR_DEPTH(out_fmt) < 8 && !(out_fmt&128)) + mpi->bpp = IMGFMT_BGR_DEPTH(out_fmt); + else + mpi->bpp=(IMGFMT_BGR_DEPTH(out_fmt)+7)&(~7); + mpi->flags|=MP_IMGFLAG_SWAPPED; + return; + } + mpi->flags|=MP_IMGFLAG_YUV; + mpi->num_planes=3; + if (mp_get_chroma_shift(out_fmt, NULL, NULL)) { + mpi->flags|=MP_IMGFLAG_PLANAR; + mpi->bpp = mp_get_chroma_shift(out_fmt, &mpi->chroma_x_shift, &mpi->chroma_y_shift); + mpi->chroma_width = mpi->width >> mpi->chroma_x_shift; + mpi->chroma_height = mpi->height >> mpi->chroma_y_shift; + } + switch(out_fmt){ + case IMGFMT_I420: + case IMGFMT_IYUV: + mpi->flags|=MP_IMGFLAG_SWAPPED; + case IMGFMT_YV12: + return; + case IMGFMT_420A: + case IMGFMT_IF09: + mpi->num_planes=4; + case IMGFMT_YVU9: + case IMGFMT_444P: + case IMGFMT_422P: + case IMGFMT_411P: + case IMGFMT_440P: + case IMGFMT_444P16_LE: + case IMGFMT_444P16_BE: + case IMGFMT_422P16_LE: + case IMGFMT_422P16_BE: + case IMGFMT_420P16_LE: + case IMGFMT_420P16_BE: + return; + case IMGFMT_Y800: + case IMGFMT_Y8: + /* they're planar ones, but for easier handling use them as packed */ + mpi->flags&=~MP_IMGFLAG_PLANAR; + mpi->num_planes=1; + return; + case IMGFMT_UYVY: + mpi->flags|=MP_IMGFLAG_SWAPPED; + case IMGFMT_YUY2: + mpi->bpp=16; + mpi->num_planes=1; + return; + case IMGFMT_NV12: + mpi->flags|=MP_IMGFLAG_SWAPPED; + case IMGFMT_NV21: + mpi->flags|=MP_IMGFLAG_PLANAR; + mpi->bpp=12; + mpi->num_planes=2; + mpi->chroma_width=(mpi->width>>0); + mpi->chroma_height=(mpi->height>>1); + mpi->chroma_x_shift=0; + mpi->chroma_y_shift=1; + return; + } + mp_msg(MSGT_DECVIDEO,MSGL_WARN,"mp_image: unknown out_fmt: 0x%X\n",out_fmt); + mpi->bpp=0; +} + +mp_image_t* new_mp_image(int w,int h){ + mp_image_t* mpi = malloc(sizeof(mp_image_t)); + if(!mpi) return NULL; // error! + memset(mpi,0,sizeof(mp_image_t)); + mpi->width=mpi->w=w; + mpi->height=mpi->h=h; + return mpi; +} + +void free_mp_image(mp_image_t* mpi){ + if(!mpi) return; + if(mpi->flags&MP_IMGFLAG_ALLOCATED){ + /* becouse we allocate the whole image in once */ + av_free(mpi->planes[0]); + if (mpi->flags & MP_IMGFLAG_RGB_PALETTE) + av_free(mpi->planes[1]); + } + free(mpi); +} + |
