mirror of
https://github.com/mpv-player/mpv
synced 2024-12-27 17:42:17 +00:00
eff2254d58
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@30186 b3059339-0415-0410-9bf9-f77b7e298cf2
251 lines
6.9 KiB
C
251 lines
6.9 KiB
C
/*
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* Portable Network Graphics renderer
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*
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* Copyright 2001 by Felix Buenemann <atmosfear@users.sourceforge.net>
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*
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* Uses libpng (which uses zlib), so see according licenses.
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*
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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 <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "config.h"
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#include "mp_msg.h"
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#include "mp_msg.h"
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#include "help_mp.h"
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#include "video_out.h"
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#include "video_out_internal.h"
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#include "subopt-helper.h"
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#include "mplayer.h"
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#include "libavcodec/avcodec.h"
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#define BUFLENGTH 512
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static const vo_info_t info =
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{
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"PNG file",
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"png",
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"Felix Buenemann <atmosfear@users.sourceforge.net>",
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""
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};
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const LIBVO_EXTERN (png)
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static int z_compression;
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static char *png_outdir;
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static int framenum;
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static int use_alpha;
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static AVCodecContext *avctx;
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static uint8_t *outbuffer;
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int outbuffer_size;
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static void png_mkdir(char *buf, int verbose) {
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struct stat stat_p;
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#ifndef __MINGW32__
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if ( mkdir(buf, 0755) < 0 ) {
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#else
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if ( mkdir(buf) < 0 ) {
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#endif
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switch (errno) { /* use switch in case other errors need to be caught
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and handled in the future */
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case EEXIST:
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if ( stat(buf, &stat_p ) < 0 ) {
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mp_msg(MSGT_VO, MSGL_ERR, "%s: %s: %s\n", info.short_name,
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MSGTR_VO_GenericError, strerror(errno) );
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mp_msg(MSGT_VO, MSGL_ERR, "%s: %s %s\n", info.short_name,
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MSGTR_VO_UnableToAccess,buf);
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exit_player(MSGTR_Exit_error);
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}
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if ( !S_ISDIR(stat_p.st_mode) ) {
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mp_msg(MSGT_VO, MSGL_ERR, "%s: %s %s\n", info.short_name,
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buf, MSGTR_VO_ExistsButNoDirectory);
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exit_player(MSGTR_Exit_error);
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}
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if ( !(stat_p.st_mode & S_IWUSR) ) {
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mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n", info.short_name,
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buf, MSGTR_VO_DirExistsButNotWritable);
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exit_player(MSGTR_Exit_error);
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}
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mp_msg(MSGT_VO, MSGL_INFO, "%s: %s - %s\n", info.short_name,
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buf, MSGTR_VO_DirExistsAndIsWritable);
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break;
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default:
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mp_msg(MSGT_VO, MSGL_ERR, "%s: %s: %s\n", info.short_name,
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MSGTR_VO_GenericError, strerror(errno) );
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mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n", info.short_name,
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buf, MSGTR_VO_CantCreateDirectory);
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exit_player(MSGTR_Exit_error);
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} /* end switch */
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} else if ( verbose ) {
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mp_msg(MSGT_VO, MSGL_INFO, "%s: %s - %s\n", info.short_name,
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buf, MSGTR_VO_DirectoryCreateSuccess);
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} /* end if */
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}
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static int
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config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format)
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{
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char buf[BUFLENGTH];
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if(z_compression == 0) {
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mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_PNG_Warning1);
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mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_PNG_Warning2);
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mp_msg(MSGT_VO,MSGL_INFO, MSGTR_LIBVO_PNG_Warning3);
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}
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snprintf(buf, BUFLENGTH, "%s", png_outdir);
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png_mkdir(buf, 1);
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mp_msg(MSGT_VO,MSGL_DBG2, "PNG Compression level %i\n", z_compression);
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return 0;
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}
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static uint32_t draw_image(mp_image_t* mpi){
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AVFrame pic;
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int buffersize;
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int res;
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char buf[100];
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FILE *outfile;
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// if -dr or -slices then do nothing:
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if(mpi->flags&(MP_IMGFLAG_DIRECT|MP_IMGFLAG_DRAW_CALLBACK)) return VO_TRUE;
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snprintf (buf, 100, "%s/%08d.png", png_outdir, ++framenum);
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outfile = fopen(buf, "wb");
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if (!outfile) {
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mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_PNG_ErrorOpeningForWriting, strerror(errno));
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return 1;
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}
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avctx->width = mpi->w;
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avctx->height = mpi->h;
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avctx->pix_fmt = imgfmt2pixfmt(mpi->imgfmt);
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pic.data[0] = mpi->planes[0];
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pic.linesize[0] = mpi->stride[0];
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buffersize = mpi->w * mpi->h * 8;
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if (outbuffer_size < buffersize) {
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av_freep(&outbuffer);
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outbuffer = av_malloc(buffersize);
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outbuffer_size = buffersize;
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}
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res = avcodec_encode_video(avctx, outbuffer, outbuffer_size, &pic);
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if(res < 0){
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mp_msg(MSGT_VO,MSGL_WARN, MSGTR_LIBVO_PNG_ErrorInCreatePng);
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fclose(outfile);
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return 1;
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}
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fwrite(outbuffer, res, 1, outfile);
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fclose(outfile);
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return VO_TRUE;
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}
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static void draw_osd(void){}
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static void flip_page (void){}
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static int draw_frame(uint8_t * src[])
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{
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return -1;
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}
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static int draw_slice( uint8_t *src[],int stride[],int w,int h,int x,int y )
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{
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return -1;
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}
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static int
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query_format(uint32_t format)
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{
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const int supported_flags = VFCAP_CSP_SUPPORTED|VFCAP_CSP_SUPPORTED_BY_HW|VFCAP_ACCEPT_STRIDE;
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switch(format){
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case IMGFMT_RGB24:
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return use_alpha ? 0 : supported_flags;
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case IMGFMT_BGR32:
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return use_alpha ? supported_flags : 0;
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}
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return 0;
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}
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static void uninit(void){
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avcodec_close(avctx);
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av_freep(&avctx);
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av_freep(&outbuffer);
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outbuffer_size = 0;
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if (png_outdir) {
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free(png_outdir);
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png_outdir = NULL;
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}
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}
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static void check_events(void){}
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static int int_zero_to_nine(void *value)
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{
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int *sh = value;
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return *sh >= 0 && *sh <= 9;
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}
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static const opt_t subopts[] = {
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{"alpha", OPT_ARG_BOOL, &use_alpha, NULL},
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{"z", OPT_ARG_INT, &z_compression, int_zero_to_nine},
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{"outdir", OPT_ARG_MSTRZ, &png_outdir, NULL},
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{NULL}
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};
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static int preinit(const char *arg)
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{
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z_compression = 0;
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png_outdir = strdup(".");
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use_alpha = 0;
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if (subopt_parse(arg, subopts) != 0) {
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return -1;
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}
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avcodec_register_all();
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avctx = avcodec_alloc_context();
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if (avcodec_open(avctx, avcodec_find_encoder(CODEC_ID_PNG)) < 0) {
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uninit();
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return -1;
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}
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avctx->compression_level = z_compression;
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return 0;
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}
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static int control(uint32_t request, void *data, ...)
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{
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switch (request) {
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case VOCTRL_DRAW_IMAGE:
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return draw_image(data);
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case VOCTRL_QUERY_FORMAT:
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return query_format(*((uint32_t*)data));
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}
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return VO_NOTIMPL;
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}
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