/* borrows from: * FFplay : Simple Media Player based on the ffmpeg libraries * Copyright (c) 2003 Fabrice Bellard * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */#include "ff.h"#include "draw.h" FFStuff stuff; voidinitff(char *file){	int i;	AVCodecContext *vcodec = NULL; 	av_register_all(); 	// Open video file	if(av_open_input_file(&stuff.formatctx, file, NULL, 0, NULL)!=0){		fprintf(stderr, "cannot open file\n");		exit(-2); // Couldn't open file	} 	// Dump information about file onto standard error	dump_format(stuff.formatctx, 0, file, 0); 	// Find the first video stream	for(i=0; i<stuff.formatctx->nb_streams; i++){		if(stuff.formatctx->streams[i]->codec.codec_type == CODEC_TYPE_VIDEO) {			stuff.videoidx = i;			vcodec = &stuff.formatctx->streams[stuff.videoidx]->codec;			break;		}	}	if(i==stuff.formatctx->nb_streams){		fprintf(stderr, "didn't find a video stream\n");		exit(-3);	} 	// Find the first audio stream	for(i=0; i<stuff.formatctx->nb_streams; i++){		if(stuff.formatctx->streams[i]->codec.codec_type == CODEC_TYPE_AUDIO) {			stuff.audioidx = i;			break;		}	}	if(i==stuff.formatctx->nb_streams){		fprintf(stderr, "didn't find an audio stream\n");		exit(-3);	}} voidffdraw(void){	AVPacket pkt1, *pkt = &pkt1;	int len1, got_picture;	AVFrame *frame = avcodec_alloc_frame();	AVCodecContext *vcodec = &stuff.formatctx->streams[stuff.videoidx]->codec; 	while(av_read_frame(stuff.formatctx, pkt) >= 0){		if(pkt->stream_index != stuff.videoidx){			av_free_packet(pkt);			continue;		} 	//	if(vcodec->codec_id == CODEC_ID_RAWVIDEO){			avpicture_fill((AVPicture *)frame, pkt->data, vcodec->pix_fmt,							vcodec->width, vcodec->height);            frame->pict_type = FF_I_TYPE;/*		}else{			len1 = avcodec_decode_video(vcodec, frame, &got_picture,										pkt->data, pkt->size);			if(got_picture){			}		}*/		av_free_packet(pkt);	} 	av_free(frame);}