mirror of https://github.com/mpv-player/mpv
219 lines
6.5 KiB
C
219 lines
6.5 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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#include <inttypes.h>
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#include "mp_msg.h"
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#include "img_format.h"
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#include "mp_image.h"
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#include "vf.h"
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#include "vf_scale.h"
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#include "fmt-conversion.h"
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#include "libvo/fastmemcpy.h"
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#include <libswscale/swscale.h>
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struct vf_priv_s {
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mp_image_t *image;
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void (*image_callback)(void *, mp_image_t *);
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void *image_callback_ctx;
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int shot, store_slices;
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};
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//===========================================================================//
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static int config(struct vf_instance *vf,
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int width, int height, int d_width, int d_height,
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unsigned int flags, unsigned int outfmt)
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{
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free_mp_image(vf->priv->image);
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vf->priv->image = new_mp_image(width, height);
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mp_image_setfmt(vf->priv->image, outfmt);
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vf->priv->image->w = d_width;
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vf->priv->image->h = d_height;
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return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
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}
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static void start_slice(struct vf_instance *vf, mp_image_t *mpi)
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{
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mpi->priv=
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vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
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mpi->type, mpi->flags, mpi->width, mpi->height);
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if (vf->priv->shot) {
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vf->priv->store_slices = 1;
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if (!(vf->priv->image->flags & MP_IMGFLAG_ALLOCATED))
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mp_image_alloc_planes(vf->priv->image);
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}
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}
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static void memcpy_pic_slice(unsigned char *dst, unsigned char *src,
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int bytesPerLine, int y, int h,
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int dstStride, int srcStride)
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{
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memcpy_pic(dst + h * dstStride, src + h * srcStride, bytesPerLine,
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h, dstStride, srcStride);
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}
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static void draw_slice(struct vf_instance *vf, unsigned char** src,
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int* stride, int w,int h, int x, int y)
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{
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if (vf->priv->store_slices) {
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mp_image_t *dst = vf->priv->image;
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int bp = (dst->bpp + 7) / 8;
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if (dst->flags & MP_IMGFLAG_PLANAR) {
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int bytes_per_line[3] = { w * bp, dst->chroma_width, dst->chroma_width };
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for (int n = 0; n < 3; n++) {
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memcpy_pic_slice(dst->planes[n], src[n], bytes_per_line[n],
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y, h, dst->stride[n], stride[n]);
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}
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} else {
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memcpy_pic_slice(dst->planes[0], src[0], dst->w*bp, y, dst->h,
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dst->stride[0], stride[0]);
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}
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}
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vf_next_draw_slice(vf,src,stride,w,h,x,y);
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}
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static void get_image(struct vf_instance *vf, mp_image_t *mpi)
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{
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// FIXME: should vf.c really call get_image when using slices??
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if (mpi->flags & MP_IMGFLAG_DRAW_CALLBACK)
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return;
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vf->dmpi= vf_get_image(vf->next, mpi->imgfmt,
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mpi->type, mpi->flags/* | MP_IMGFLAG_READABLE*/, mpi->width, mpi->height);
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for (int i = 0; i < MP_MAX_PLANES; i++) {
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mpi->planes[i]=vf->dmpi->planes[i];
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mpi->stride[i]=vf->dmpi->stride[i];
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}
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mpi->width=vf->dmpi->width;
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mpi->flags|=MP_IMGFLAG_DIRECT;
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mpi->priv=(void*)vf->dmpi;
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}
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static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts)
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{
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mp_image_t *dmpi = (mp_image_t *)mpi->priv;
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if(!(mpi->flags&(MP_IMGFLAG_DIRECT|MP_IMGFLAG_DRAW_CALLBACK))){
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dmpi=vf_get_image(vf->next,mpi->imgfmt,
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MP_IMGTYPE_EXPORT, 0,
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mpi->width, mpi->height);
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vf_clone_mpi_attributes(dmpi, mpi);
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for (int i = 0; i < MP_MAX_PLANES; i++) {
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dmpi->planes[i]=mpi->planes[i];
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dmpi->stride[i]=mpi->stride[i];
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}
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dmpi->width=mpi->width;
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dmpi->height=mpi->height;
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}
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if(vf->priv->shot) {
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vf->priv->shot=0;
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mp_image_t image;
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if (!vf->priv->store_slices)
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image = *dmpi;
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else
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image = *vf->priv->image;
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image.w = vf->priv->image->w;
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image.h = vf->priv->image->h;
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vf->priv->image_callback(vf->priv->image_callback_ctx, &image);
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vf->priv->store_slices = 0;
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}
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return vf_next_put_image(vf, dmpi, pts);
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}
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static int control (vf_instance_t *vf, int request, void *data)
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{
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if(request==VFCTRL_SCREENSHOT) {
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struct vf_ctrl_screenshot *cmd = (struct vf_ctrl_screenshot *)data;
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vf->priv->image_callback = cmd->image_callback;
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vf->priv->image_callback_ctx = cmd->image_callback_ctx;
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vf->priv->shot=1;
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return CONTROL_TRUE;
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}
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return vf_next_control (vf, request, data);
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}
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//===========================================================================//
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static int query_format(struct vf_instance *vf, unsigned int fmt)
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{
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enum PixelFormat av_format = imgfmt2pixfmt(fmt);
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if (av_format != PIX_FMT_NONE && sws_isSupportedInput(av_format))
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return vf_next_query_format(vf, fmt);
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return 0;
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}
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static void uninit(vf_instance_t *vf)
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{
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free_mp_image(vf->priv->image);
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free(vf->priv);
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}
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static int vf_open(vf_instance_t *vf, char *args)
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{
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vf->config=config;
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vf->control=control;
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vf->put_image=put_image;
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vf->query_format=query_format;
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vf->start_slice=start_slice;
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vf->draw_slice=draw_slice;
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vf->get_image=get_image;
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vf->uninit=uninit;
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vf->priv=malloc(sizeof(struct vf_priv_s));
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vf->priv->shot=0;
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vf->priv->store_slices=0;
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vf->priv->image=NULL;
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return 1;
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}
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const vf_info_t vf_info_screenshot = {
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"screenshot to file",
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"screenshot",
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"A'rpi, Jindrich Makovicka",
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"",
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vf_open,
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NULL
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};
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// screenshot.c will look for a filter named "screenshot_force", and not use
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// the VO based screenshot code if it's in the filter chain.
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const vf_info_t vf_info_screenshot_force = {
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"screenshot to file (override VO based screenshot code)",
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"screenshot_force",
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"A'rpi, Jindrich Makovicka",
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"",
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vf_open,
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NULL
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};
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//===========================================================================//
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