diff options
Diffstat (limited to 'libmpcodecs/mp_image.c')
| -rw-r--r-- | libmpcodecs/mp_image.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/libmpcodecs/mp_image.c b/libmpcodecs/mp_image.c index ebc9e6a749..e71821129d 100644 --- a/libmpcodecs/mp_image.c +++ b/libmpcodecs/mp_image.c @@ -93,3 +93,108 @@ void copy_mpi(mp_image_t *dmpi, mp_image_t *mpi) { 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_VDPAU(out_fmt) || IMGFMT_IS_XVMC(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->bpp=8; + 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 */ + if(mpi->planes[0]) free(mpi->planes[0]); + if (mpi->flags & MP_IMGFLAG_RGB_PALETTE) + free(mpi->planes[1]); + } + free(mpi); +} + |