mirror of https://git.ffmpeg.org/ffmpeg.git
247 lines
7.6 KiB
C
247 lines
7.6 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#if HAVE_MALLOC_H
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#include <malloc.h>
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#endif
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#include "img_format.h"
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#include "mp_image.h"
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#include "libvo/fastmemcpy.h"
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//#include "libavutil/mem.h"
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void ff_mp_image_alloc_planes(mp_image_t *mpi) {
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// IF09 - allocate space for 4. plane delta info - unused
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if (mpi->imgfmt == IMGFMT_IF09) {
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mpi->planes[0]=av_malloc(mpi->bpp*mpi->width*(mpi->height+2)/8+
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mpi->chroma_width*mpi->chroma_height);
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} else
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mpi->planes[0]=av_malloc(mpi->bpp*mpi->width*(mpi->height+2)/8);
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if (mpi->flags&MP_IMGFLAG_PLANAR) {
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int bpp = IMGFMT_IS_YUVP16(mpi->imgfmt)? 2 : 1;
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// YV12/I420/YVU9/IF09. feel free to add other planar formats here...
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mpi->stride[0]=mpi->stride[3]=bpp*mpi->width;
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if(mpi->num_planes > 2){
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mpi->stride[1]=mpi->stride[2]=bpp*mpi->chroma_width;
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if(mpi->flags&MP_IMGFLAG_SWAPPED){
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// I420/IYUV (Y,U,V)
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mpi->planes[1]=mpi->planes[0]+mpi->stride[0]*mpi->height;
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mpi->planes[2]=mpi->planes[1]+mpi->stride[1]*mpi->chroma_height;
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if (mpi->num_planes > 3)
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mpi->planes[3]=mpi->planes[2]+mpi->stride[2]*mpi->chroma_height;
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} else {
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// YV12,YVU9,IF09 (Y,V,U)
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mpi->planes[2]=mpi->planes[0]+mpi->stride[0]*mpi->height;
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mpi->planes[1]=mpi->planes[2]+mpi->stride[1]*mpi->chroma_height;
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if (mpi->num_planes > 3)
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mpi->planes[3]=mpi->planes[1]+mpi->stride[1]*mpi->chroma_height;
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}
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} else {
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// NV12/NV21
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mpi->stride[1]=mpi->chroma_width;
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mpi->planes[1]=mpi->planes[0]+mpi->stride[0]*mpi->height;
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}
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} else {
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mpi->stride[0]=mpi->width*mpi->bpp/8;
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if (mpi->flags & MP_IMGFLAG_RGB_PALETTE)
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mpi->planes[1] = av_malloc(1024);
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}
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mpi->flags|=MP_IMGFLAG_ALLOCATED;
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}
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mp_image_t* ff_alloc_mpi(int w, int h, unsigned long int fmt) {
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mp_image_t* mpi = ff_new_mp_image(w,h);
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ff_mp_image_setfmt(mpi,fmt);
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ff_mp_image_alloc_planes(mpi);
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return mpi;
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}
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void ff_copy_mpi(mp_image_t *dmpi, mp_image_t *mpi) {
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if(mpi->flags&MP_IMGFLAG_PLANAR){
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memcpy_pic(dmpi->planes[0],mpi->planes[0], mpi->w, mpi->h,
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dmpi->stride[0],mpi->stride[0]);
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memcpy_pic(dmpi->planes[1],mpi->planes[1], mpi->chroma_width, mpi->chroma_height,
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dmpi->stride[1],mpi->stride[1]);
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memcpy_pic(dmpi->planes[2], mpi->planes[2], mpi->chroma_width, mpi->chroma_height,
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dmpi->stride[2],mpi->stride[2]);
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} else {
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memcpy_pic(dmpi->planes[0],mpi->planes[0],
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mpi->w*(dmpi->bpp/8), mpi->h,
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dmpi->stride[0],mpi->stride[0]);
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}
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}
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void ff_mp_image_setfmt(mp_image_t* mpi,unsigned int out_fmt){
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mpi->flags&=~(MP_IMGFLAG_PLANAR|MP_IMGFLAG_YUV|MP_IMGFLAG_SWAPPED);
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mpi->imgfmt=out_fmt;
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// compressed formats
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if(out_fmt == IMGFMT_MPEGPES ||
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out_fmt == IMGFMT_ZRMJPEGNI || out_fmt == IMGFMT_ZRMJPEGIT || out_fmt == IMGFMT_ZRMJPEGIB ||
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IMGFMT_IS_HWACCEL(out_fmt)){
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mpi->bpp=0;
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return;
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}
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mpi->num_planes=1;
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if (IMGFMT_IS_RGB(out_fmt)) {
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if (IMGFMT_RGB_DEPTH(out_fmt) < 8 && !(out_fmt&128))
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mpi->bpp = IMGFMT_RGB_DEPTH(out_fmt);
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else
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mpi->bpp=(IMGFMT_RGB_DEPTH(out_fmt)+7)&(~7);
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return;
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}
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if (IMGFMT_IS_BGR(out_fmt)) {
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if (IMGFMT_BGR_DEPTH(out_fmt) < 8 && !(out_fmt&128))
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mpi->bpp = IMGFMT_BGR_DEPTH(out_fmt);
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else
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mpi->bpp=(IMGFMT_BGR_DEPTH(out_fmt)+7)&(~7);
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mpi->flags|=MP_IMGFLAG_SWAPPED;
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return;
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}
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mpi->num_planes=3;
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if (out_fmt == IMGFMT_GBR24P) {
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mpi->bpp=24;
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mpi->flags|=MP_IMGFLAG_PLANAR;
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return;
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} else if (out_fmt == IMGFMT_GBR12P) {
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mpi->bpp=36;
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mpi->flags|=MP_IMGFLAG_PLANAR;
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return;
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} else if (out_fmt == IMGFMT_GBR14P) {
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mpi->bpp=42;
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mpi->flags|=MP_IMGFLAG_PLANAR;
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return;
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}
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mpi->flags|=MP_IMGFLAG_YUV;
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if (ff_mp_get_chroma_shift(out_fmt, NULL, NULL, NULL)) {
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mpi->flags|=MP_IMGFLAG_PLANAR;
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mpi->bpp = ff_mp_get_chroma_shift(out_fmt, &mpi->chroma_x_shift, &mpi->chroma_y_shift, NULL);
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mpi->chroma_width = mpi->width >> mpi->chroma_x_shift;
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mpi->chroma_height = mpi->height >> mpi->chroma_y_shift;
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}
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switch(out_fmt){
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case IMGFMT_I420:
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case IMGFMT_IYUV:
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mpi->flags|=MP_IMGFLAG_SWAPPED;
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case IMGFMT_YV12:
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return;
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case IMGFMT_420A:
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case IMGFMT_422A:
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case IMGFMT_444A:
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case IMGFMT_IF09:
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mpi->num_planes=4;
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case IMGFMT_YVU9:
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case IMGFMT_444P:
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case IMGFMT_422P:
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case IMGFMT_411P:
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case IMGFMT_440P:
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case IMGFMT_444P16_LE:
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case IMGFMT_444P16_BE:
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case IMGFMT_444P14_LE:
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case IMGFMT_444P14_BE:
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case IMGFMT_444P12_LE:
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case IMGFMT_444P12_BE:
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case IMGFMT_444P10_LE:
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case IMGFMT_444P10_BE:
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case IMGFMT_444P9_LE:
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case IMGFMT_444P9_BE:
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case IMGFMT_422P16_LE:
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case IMGFMT_422P16_BE:
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case IMGFMT_422P14_LE:
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case IMGFMT_422P14_BE:
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case IMGFMT_422P12_LE:
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case IMGFMT_422P12_BE:
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case IMGFMT_422P10_LE:
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case IMGFMT_422P10_BE:
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case IMGFMT_422P9_LE:
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case IMGFMT_422P9_BE:
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case IMGFMT_420P16_LE:
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case IMGFMT_420P16_BE:
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case IMGFMT_420P14_LE:
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case IMGFMT_420P14_BE:
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case IMGFMT_420P12_LE:
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case IMGFMT_420P12_BE:
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case IMGFMT_420P10_LE:
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case IMGFMT_420P10_BE:
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case IMGFMT_420P9_LE:
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case IMGFMT_420P9_BE:
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return;
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case IMGFMT_Y16_LE:
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case IMGFMT_Y16_BE:
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mpi->bpp=16;
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case IMGFMT_Y800:
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case IMGFMT_Y8:
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/* they're planar ones, but for easier handling use them as packed */
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mpi->flags&=~MP_IMGFLAG_PLANAR;
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mpi->num_planes=1;
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return;
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case IMGFMT_Y8A:
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mpi->num_planes=2;
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return;
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case IMGFMT_UYVY:
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mpi->flags|=MP_IMGFLAG_SWAPPED;
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case IMGFMT_YUY2:
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mpi->chroma_x_shift = 1;
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mpi->bpp=16;
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mpi->num_planes=1;
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return;
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case IMGFMT_NV12:
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mpi->flags|=MP_IMGFLAG_SWAPPED;
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case IMGFMT_NV21:
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mpi->flags|=MP_IMGFLAG_PLANAR;
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mpi->bpp=12;
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mpi->num_planes=2;
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mpi->chroma_width=(mpi->width>>0);
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mpi->chroma_height=(mpi->height>>1);
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mpi->chroma_x_shift=0;
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mpi->chroma_y_shift=1;
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return;
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}
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ff_mp_msg(MSGT_DECVIDEO,MSGL_WARN,"mp_image: unknown out_fmt: 0x%X\n",out_fmt);
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mpi->bpp=0;
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}
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mp_image_t* ff_new_mp_image(int w,int h){
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mp_image_t* mpi = malloc(sizeof(mp_image_t));
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if(!mpi) return NULL; // error!
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memset(mpi,0,sizeof(mp_image_t));
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mpi->width=mpi->w=w;
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mpi->height=mpi->h=h;
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return mpi;
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}
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void ff_free_mp_image(mp_image_t* mpi){
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if(!mpi) return;
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if(mpi->flags&MP_IMGFLAG_ALLOCATED){
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/* becouse we allocate the whole image in once */
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av_free(mpi->planes[0]);
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if (mpi->flags & MP_IMGFLAG_RGB_PALETTE)
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av_free(mpi->planes[1]);
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}
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free(mpi);
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}
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