| /* |
| * 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> |
| #if HAVE_MALLOC_H |
| #include <malloc.h> |
| #endif |
| #include <string.h> |
| #include <inttypes.h> |
| |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <unistd.h> |
| |
| #include "mp_msg.h" |
| |
| #include "img_format.h" |
| #include "mp_image.h" |
| #include "vf.h" |
| #include "vf_scale.h" |
| |
| #include "libswscale/swscale.h" |
| #include "libavcodec/avcodec.h" |
| |
| struct vf_priv_s { |
| int frameno; |
| char fname[102]; |
| /// shot stores current screenshot mode: |
| /// 0: don't take screenshots |
| /// 1: take single screenshot, reset to 0 afterwards |
| /// 2: take screenshots of each frame |
| int shot, store_slices; |
| int dw, dh, stride; |
| uint8_t *buffer; |
| struct SwsContext *ctx; |
| AVCodecContext *avctx; |
| uint8_t *outbuffer; |
| int outbuffer_size; |
| }; |
| |
| //===========================================================================// |
| |
| static int config(struct vf_instance *vf, |
| int width, int height, int d_width, int d_height, |
| unsigned int flags, unsigned int outfmt) |
| { |
| vf->priv->ctx=sws_getContextFromCmdLine(width, height, outfmt, |
| d_width, d_height, IMGFMT_RGB24); |
| |
| vf->priv->outbuffer_size = d_width * d_height * 3 * 2; |
| vf->priv->outbuffer = realloc(vf->priv->outbuffer, vf->priv->outbuffer_size); |
| vf->priv->avctx->width = d_width; |
| vf->priv->avctx->height = d_height; |
| vf->priv->avctx->pix_fmt = PIX_FMT_RGB24; |
| vf->priv->avctx->compression_level = 0; |
| vf->priv->dw = d_width; |
| vf->priv->dh = d_height; |
| vf->priv->stride = (3*vf->priv->dw+15)&~15; |
| |
| free(vf->priv->buffer); // probably reconfigured |
| vf->priv->buffer = NULL; |
| |
| return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt); |
| } |
| |
| static void write_png(struct vf_priv_s *priv) |
| { |
| char *fname = priv->fname; |
| FILE * fp; |
| AVFrame pic; |
| int size; |
| |
| fp = fopen (fname, "wb"); |
| if (fp == NULL) { |
| mp_msg(MSGT_VFILTER,MSGL_ERR,"\nPNG Error opening %s for writing!\n", fname); |
| return; |
| } |
| |
| pic.data[0] = priv->buffer; |
| pic.linesize[0] = priv->stride; |
| size = avcodec_encode_video(priv->avctx, priv->outbuffer, priv->outbuffer_size, &pic); |
| if (size > 0) |
| fwrite(priv->outbuffer, size, 1, fp); |
| |
| fclose (fp); |
| } |
| |
| static int fexists(char *fname) |
| { |
| struct stat dummy; |
| if (stat(fname, &dummy) == 0) return 1; |
| else return 0; |
| } |
| |
| static void gen_fname(struct vf_priv_s* priv) |
| { |
| do { |
| snprintf (priv->fname, 100, "shot%04d.png", ++priv->frameno); |
| } while (fexists(priv->fname) && priv->frameno < 100000); |
| if (fexists(priv->fname)) { |
| priv->fname[0] = '\0'; |
| return; |
| } |
| |
| mp_msg(MSGT_VFILTER,MSGL_INFO,"*** screenshot '%s' ***\n",priv->fname); |
| |
| } |
| |
| static void scale_image(struct vf_priv_s* priv, mp_image_t *mpi) |
| { |
| uint8_t *dst[MP_MAX_PLANES] = {NULL}; |
| int dst_stride[MP_MAX_PLANES] = {0}; |
| |
| dst_stride[0] = priv->stride; |
| if (!priv->buffer) |
| priv->buffer = av_malloc(dst_stride[0]*priv->dh); |
| |
| dst[0] = priv->buffer; |
| sws_scale(priv->ctx, mpi->planes, mpi->stride, 0, priv->dh, dst, dst_stride); |
| } |
| |
| static void start_slice(struct vf_instance *vf, mp_image_t *mpi) |
| { |
| vf->dmpi=vf_get_image(vf->next,mpi->imgfmt, |
| mpi->type, mpi->flags, mpi->width, mpi->height); |
| if (vf->priv->shot) { |
| vf->priv->store_slices = 1; |
| if (!vf->priv->buffer) |
| vf->priv->buffer = av_malloc(vf->priv->stride*vf->priv->dh); |
| } |
| |
| } |
| |
| static void draw_slice(struct vf_instance *vf, unsigned char** src, |
| int* stride, int w,int h, int x, int y) |
| { |
| if (vf->priv->store_slices) { |
| uint8_t *dst[MP_MAX_PLANES] = {NULL}; |
| int dst_stride[MP_MAX_PLANES] = {0}; |
| dst_stride[0] = vf->priv->stride; |
| dst[0] = vf->priv->buffer; |
| sws_scale(vf->priv->ctx, src, stride, y, h, dst, dst_stride); |
| } |
| vf_next_draw_slice(vf,src,stride,w,h,x,y); |
| } |
| |
| static void get_image(struct vf_instance *vf, mp_image_t *mpi) |
| { |
| // FIXME: should vf.c really call get_image when using slices?? |
| if (mpi->flags & MP_IMGFLAG_DRAW_CALLBACK) |
| return; |
| vf->dmpi= vf_get_image(vf->next, mpi->imgfmt, |
| mpi->type, mpi->flags/* | MP_IMGFLAG_READABLE*/, mpi->width, mpi->height); |
| |
| mpi->planes[0]=vf->dmpi->planes[0]; |
| mpi->stride[0]=vf->dmpi->stride[0]; |
| if(mpi->flags&MP_IMGFLAG_PLANAR){ |
| mpi->planes[1]=vf->dmpi->planes[1]; |
| mpi->planes[2]=vf->dmpi->planes[2]; |
| mpi->stride[1]=vf->dmpi->stride[1]; |
| mpi->stride[2]=vf->dmpi->stride[2]; |
| } |
| mpi->width=vf->dmpi->width; |
| |
| mpi->flags|=MP_IMGFLAG_DIRECT; |
| |
| mpi->priv=(void*)vf->dmpi; |
| } |
| |
| static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts) |
| { |
| mp_image_t *dmpi = (mp_image_t *)mpi->priv; |
| |
| if (mpi->flags & MP_IMGFLAG_DRAW_CALLBACK) |
| dmpi = vf->dmpi; |
| else |
| if(!(mpi->flags&MP_IMGFLAG_DIRECT)){ |
| dmpi=vf_get_image(vf->next,mpi->imgfmt, |
| MP_IMGTYPE_EXPORT, 0, |
| mpi->width, mpi->height); |
| vf_clone_mpi_attributes(dmpi, mpi); |
| dmpi->planes[0]=mpi->planes[0]; |
| dmpi->planes[1]=mpi->planes[1]; |
| dmpi->planes[2]=mpi->planes[2]; |
| dmpi->stride[0]=mpi->stride[0]; |
| dmpi->stride[1]=mpi->stride[1]; |
| dmpi->stride[2]=mpi->stride[2]; |
| dmpi->width=mpi->width; |
| dmpi->height=mpi->height; |
| } |
| |
| if(vf->priv->shot) { |
| if (vf->priv->shot==1) |
| vf->priv->shot=0; |
| gen_fname(vf->priv); |
| if (vf->priv->fname[0]) { |
| if (!vf->priv->store_slices) |
| scale_image(vf->priv, dmpi); |
| write_png(vf->priv); |
| } |
| vf->priv->store_slices = 0; |
| } |
| |
| return vf_next_put_image(vf, dmpi, pts); |
| } |
| |
| static int control (vf_instance_t *vf, int request, void *data) |
| { |
| /** data contains an integer argument |
| * 0: take screenshot with the next frame |
| * 1: take screenshots with each frame until the same command is given once again |
| **/ |
| if(request==VFCTRL_SCREENSHOT) { |
| if (data && *(int*)data) { // repeated screenshot mode |
| if (vf->priv->shot==2) |
| vf->priv->shot=0; |
| else |
| vf->priv->shot=2; |
| } else { // single screenshot |
| if (!vf->priv->shot) |
| vf->priv->shot=1; |
| } |
| return CONTROL_TRUE; |
| } |
| return vf_next_control (vf, request, data); |
| } |
| |
| |
| //===========================================================================// |
| |
| static int query_format(struct vf_instance *vf, unsigned int fmt) |
| { |
| switch(fmt){ |
| case IMGFMT_YV12: |
| case IMGFMT_I420: |
| case IMGFMT_IYUV: |
| case IMGFMT_UYVY: |
| case IMGFMT_YUY2: |
| case IMGFMT_BGR32: |
| case IMGFMT_BGR24: |
| case IMGFMT_BGR16: |
| case IMGFMT_BGR15: |
| case IMGFMT_BGR12: |
| case IMGFMT_RGB32: |
| case IMGFMT_RGB24: |
| case IMGFMT_Y800: |
| case IMGFMT_Y8: |
| case IMGFMT_YVU9: |
| case IMGFMT_IF09: |
| case IMGFMT_444P: |
| case IMGFMT_422P: |
| case IMGFMT_411P: |
| return vf_next_query_format(vf, fmt); |
| } |
| return 0; |
| } |
| |
| static void uninit(vf_instance_t *vf) |
| { |
| avcodec_close(vf->priv->avctx); |
| av_freep(&vf->priv->avctx); |
| if(vf->priv->ctx) sws_freeContext(vf->priv->ctx); |
| av_free(vf->priv->buffer); |
| free(vf->priv->outbuffer); |
| free(vf->priv); |
| } |
| |
| static int vf_open(vf_instance_t *vf, char *args) |
| { |
| vf->config=config; |
| vf->control=control; |
| vf->put_image=put_image; |
| vf->query_format=query_format; |
| vf->start_slice=start_slice; |
| vf->draw_slice=draw_slice; |
| vf->get_image=get_image; |
| vf->uninit=uninit; |
| vf->priv=malloc(sizeof(struct vf_priv_s)); |
| vf->priv->frameno=0; |
| vf->priv->shot=0; |
| vf->priv->store_slices=0; |
| vf->priv->buffer=0; |
| vf->priv->outbuffer=0; |
| vf->priv->ctx=0; |
| vf->priv->avctx = avcodec_alloc_context(); |
| avcodec_register_all(); |
| if (avcodec_open(vf->priv->avctx, avcodec_find_encoder(CODEC_ID_PNG))) { |
| mp_msg(MSGT_VFILTER, MSGL_FATAL, "Could not open libavcodec PNG encoder\n"); |
| return 0; |
| } |
| return 1; |
| } |
| |
| |
| const vf_info_t vf_info_screenshot = { |
| "screenshot to file", |
| "screenshot", |
| "A'rpi, Jindrich Makovicka", |
| "", |
| vf_open, |
| NULL |
| }; |
| |
| //===========================================================================// |