mirror of https://github.com/mpv-player/mpv
145 lines
3.0 KiB
C
145 lines
3.0 KiB
C
/*
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* vo_jpeg.c, JPEG Renderer for Mplayer
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*
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* Copyright 2002 by Pontscho (pontscho@makacs.poliod.hu)
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* 25/04/2003: Spring cleanup -- alex
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*
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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 <jpeglib.h>
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#include "config.h"
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#include "video_out.h"
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#include "video_out_internal.h"
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static vo_info_t info=
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{
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"JPEG file",
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"jpeg",
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"Zoltan Ponekker (pontscho@makacs.poliod.hu)",
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""
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};
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LIBVO_EXTERN (jpeg)
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static int image_width;
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static int image_height;
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int jpeg_baseline = 1;
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int jpeg_progressive_mode = 0;
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int jpeg_optimize = 100;
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int jpeg_smooth = 0;
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int jpeg_quality = 75;
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char * jpeg_outdir = ".";
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static int framenum=0;
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static uint32_t config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t fullscreen, char *title, uint32_t format)
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{
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image_height=height;
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image_width=width;
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return 0;
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}
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static uint32_t jpeg_write( uint8_t * name,uint8_t * buffer )
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{
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FILE * o;
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struct jpeg_compress_struct cinfo;
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struct jpeg_error_mgr jerr;
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JSAMPROW row_pointer[1];
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int row_stride;
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if ( !buffer ) return 1;
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if ( (o=fopen( name,"wb" )) == NULL ) return 1;
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cinfo.err=jpeg_std_error(&jerr);
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jpeg_create_compress(&cinfo);
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jpeg_stdio_dest( &cinfo,o );
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cinfo.image_width=image_width;
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cinfo.image_height=image_height;
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cinfo.input_components=3;
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cinfo.in_color_space=JCS_RGB;
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jpeg_set_defaults( &cinfo );
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jpeg_set_quality( &cinfo,jpeg_quality,jpeg_baseline );
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cinfo.optimize_coding=jpeg_optimize;
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cinfo.smoothing_factor=jpeg_smooth;
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if ( jpeg_progressive_mode ) jpeg_simple_progression( &cinfo );
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jpeg_start_compress( &cinfo,TRUE );
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row_stride = image_width * 3;
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while ( cinfo.next_scanline < cinfo.image_height )
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{
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row_pointer[0]=&buffer[ cinfo.next_scanline * row_stride ];
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(void)jpeg_write_scanlines( &cinfo,row_pointer,1 );
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}
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jpeg_finish_compress( &cinfo );
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fclose( o );
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jpeg_destroy_compress( &cinfo );
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return 0;
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}
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static uint32_t draw_frame(uint8_t * src[])
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{
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char buf[256];
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uint8_t *dst= src[0];
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snprintf (buf, 256, "%s/%08d.jpg", jpeg_outdir, ++framenum);
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return jpeg_write( buf,src[0] );
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}
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static void draw_osd(void)
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{
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}
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static void flip_page (void)
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{
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}
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static uint32_t draw_slice( uint8_t *src[],int stride[],int w,int h,int x,int y )
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{
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return 0;
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}
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static uint32_t query_format(uint32_t format)
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{
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if (format == IMGFMT_RGB24)
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return VFCAP_CSP_SUPPORTED|VFCAP_CSP_SUPPORTED_BY_HW;
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return 0;
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}
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static void uninit(void)
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{
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}
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static void check_events(void)
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{
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}
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static uint32_t preinit(const char *arg)
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{
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return 0;
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}
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static uint32_t control(uint32_t request, void *data, ...)
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{
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switch (request)
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{
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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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