mirror of https://github.com/mpv-player/mpv
Remove libpng dependency for Gui, use libavcodec instead
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@23211 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
reimar
parent
aefe177836
commit
bc39c06e4c
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@ -7008,7 +7008,7 @@ echo "$_gui"
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if test "$_gui" = yes ; then
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# Required libraries
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test "$_png" != yes && die "The GUI requires PNG support, please install libpng and libpng-dev packages."
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test "$_libavcodec" != yes && die "The GUI requires libavcodec with PNG support."
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if not win32 ; then
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test "$_x11" != yes && die "X11 support required for GUI compilation."
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111
gui/bitmap.c
111
gui/bitmap.c
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@ -2,22 +2,23 @@
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#include <stdlib.h>
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#include <string.h>
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#include <png.h>
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#include "mp_msg.h"
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#include "help_mp.h"
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#include "bitmap.h"
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#ifdef USE_LIBAVCODEC_SO
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#include <ffmpeg/avcodec.h>
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#else
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#include "libavcodec/avcodec.h"
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#endif
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#include "libvo/fastmemcpy.h"
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int pngRead( unsigned char * fname,txSample * bf )
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{
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unsigned char header[8];
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png_structp png;
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png_infop info;
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png_infop endinfo;
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png_bytep * row_p;
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png_bytep palette = NULL;
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int color;
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png_uint_32 i;
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int decode_ok;
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void *data;
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int len;
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AVCodecContext *avctx;
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AVFrame *frame;
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FILE *fp=fopen( fname,"rb" );
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if ( !fp )
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@ -26,69 +27,41 @@ int pngRead( unsigned char * fname,txSample * bf )
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return 1;
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}
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fread( header,1,8,fp );
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if ( !png_check_sig( header,8 ) ) return 1;
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png=png_create_read_struct( PNG_LIBPNG_VER_STRING,NULL,NULL,NULL );
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info=png_create_info_struct( png );
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endinfo=png_create_info_struct( png );
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png_init_io( png,fp );
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png_set_sig_bytes( png,8 );
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png_read_info( png,info );
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png_get_IHDR( png,info,&bf->Width,&bf->Height,&bf->BPP,&color,NULL,NULL,NULL );
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row_p=malloc( sizeof( png_bytep ) * bf->Height );
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if ( !row_p )
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{
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mp_dbg( MSGT_GPLAYER,MSGL_DBG2,"[png] not enough memory for row buffer\n" );
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return 2;
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}
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bf->Image=(png_bytep)malloc( png_get_rowbytes( png,info ) * bf->Height );
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if ( !bf->Image )
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{
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mp_dbg( MSGT_GPLAYER,MSGL_DBG2,"[png] not enough memory for image buffer\n" );
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return 2;
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}
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for ( i=0; i < bf->Height; i++ ) row_p[i]=&bf->Image[png_get_rowbytes( png,info ) * i];
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png_read_image( png,row_p );
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free( row_p );
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#if 0
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if ( color == PNG_COLOR_TYPE_PALETTE )
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{
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int cols;
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png_get_PLTE( png,info,(png_colorp *)&palette,&cols );
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}
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#endif
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if ( color&PNG_COLOR_MASK_ALPHA )
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{
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if ( color&PNG_COLOR_MASK_PALETTE || color == PNG_COLOR_TYPE_GRAY_ALPHA ) bf->BPP*=2;
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else bf->BPP*=4;
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}
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else
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{
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if ( color&PNG_COLOR_MASK_PALETTE || color == PNG_COLOR_TYPE_GRAY ) bf->BPP*=1;
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else bf->BPP*=3;
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}
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png_read_end( png,endinfo );
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png_destroy_read_struct( &png,&info,&endinfo );
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if ( fclose( fp ) != 0 )
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{
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free( bf->Image );
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free( palette );
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return 1;
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}
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bf->ImageSize=bf->Width * bf->Height * ( bf->BPP / 8 );
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fseek(fp, 0, SEEK_END);
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len = ftell(fp);
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if (len > 50 * 1024 * 1024) return 2;
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data = malloc(len + FF_INPUT_BUFFER_PADDING_SIZE);
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fseek(fp, 0, SEEK_SET);
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fread(data, len, 1, fp);
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fclose(fp);
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avctx = avcodec_alloc_context();
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frame = avcodec_alloc_frame();
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avcodec_open(avctx, &png_decoder);
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avcodec_decode_video(avctx, frame, &decode_ok, data, len);
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memset(bf, 0, sizeof(*bf));
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switch (avctx->pix_fmt) {
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case PIX_FMT_GRAY8: bf->BPP = 8; break;
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case PIX_FMT_GRAY16BE: bf->BPP = 16; break;
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case PIX_FMT_RGB24: bf->BPP = 24; break;
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case PIX_FMT_RGB32: bf->BPP = 32; break;
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default: bf->BPP = 0; break;
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}
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if (decode_ok && bf->BPP) {
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int bpl;
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bf->Width = avctx->width; bf->Height = avctx->height;
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bpl = bf->Width * (bf->BPP / 8);
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bf->ImageSize = bpl * bf->Height;
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bf->Image = malloc(bf->ImageSize);
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memcpy_pic(bf->Image, frame->data[0], bpl, bf->Height, bpl, frame->linesize[0]);
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}
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avcodec_close(avctx);
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av_freep(&frame);
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av_freep(&avctx);
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mp_dbg( MSGT_GPLAYER,MSGL_DBG2,"[png] filename: %s.\n",fname );
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mp_dbg( MSGT_GPLAYER,MSGL_DBG2,"[png] size: %dx%d bits: %d\n",bf->Width,bf->Height,bf->BPP );
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mp_dbg( MSGT_GPLAYER,MSGL_DBG2,"[png] imagesize: %lu\n",bf->ImageSize );
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return 0;
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return !(decode_ok && bf->BPP);
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}
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int conv24to32( txSample * bf )
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