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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#include "stream.h"
#include "demuxer.h"
#include "stheader.h"
#include "mf.h"
typedef struct
{
int nr_of_frames;
int curr_frame;
} demuxer_mf_t;
void demux_seek_mf(demuxer_t *demuxer,float rel_seek_secs,int flags){
demuxer_mf_t * mf = (demuxer_mf_t *)demuxer->priv;
sh_video_t * sh_video = demuxer->video->sh;
int newpos = (flags & 1)?0:mf->curr_frame;
if ( flags & 2 ) newpos+=rel_seek_secs*mf->nr_of_frames;
else newpos+=rel_seek_secs * sh_video->fps;
if ( newpos < 0 ) newpos=0;
if( newpos > mf->nr_of_frames) newpos=mf->nr_of_frames;
mf->curr_frame=newpos;
}
// return value:
// 0 = EOF or no stream found
// 1 = successfully read a packet
int demux_mf_fill_buffer(demuxer_t *demuxer){
mf_t * mf;
demuxer_mf_t * dmf;
struct stat fs;
FILE * f;
dmf=(demuxer_mf_t*)demuxer->priv;
if ( dmf->curr_frame >= dmf->nr_of_frames ) return 0;
mf=(mf_t*)demuxer->stream->priv;
stat( mf->names[dmf->curr_frame],&fs );
// printf( "[demux_mf] frame: %d (%s,%d)\n",dmf->curr_frame,mf->names[dmf->curr_frame],fs.st_size );
if ( !( f=fopen( mf->names[dmf->curr_frame],"r" ) ) ) return 0;
{
sh_video_t * sh_video = demuxer->video->sh;
demux_packet_t * dp = new_demux_packet( fs.st_size );
if ( !fread( dp->buffer,fs.st_size,1,f ) ) return 0;
dp->pts=dmf->curr_frame / sh_video->fps;
dp->pos=dmf->curr_frame;
dp->flags=0;
// append packet to DS stream:
ds_add_packet( demuxer->video,dp );
}
fclose( f );
dmf->curr_frame++;
return 1;
}
demuxer_t* demux_open_mf(demuxer_t* demuxer){
sh_video_t *sh_video = NULL;
mf_t *mf = NULL;
demuxer_mf_t *dmf = NULL;
mf=(mf_t*)demuxer->stream->priv;
dmf=calloc( 1,sizeof( demuxer_mf_t ) );
// go back to the beginning
stream_reset(demuxer->stream);
// stream_seek(demuxer->stream, 0);
demuxer->movi_start = 0;
demuxer->movi_end = mf->nr_of_files - 1;
dmf->nr_of_frames= mf->nr_of_files;
dmf->curr_frame=0;
// create a new video stream header
sh_video = new_sh_video(demuxer, 0);
// make sure the demuxer knows about the new video stream header
// (even though new_sh_video() ought to take care of it)
demuxer->video->sh = sh_video;
// make sure that the video demuxer stream header knows about its
// parent video demuxer stream (this is getting wacky), or else
// video_read_properties() will choke
sh_video->ds = demuxer->video;
if ( !strcasecmp( mf_type,"jpg" ) ||
!(strcasecmp(mf_type, "jpeg"))) sh_video->format = mmioFOURCC('I', 'J', 'P', 'G');
else
if ( !strcasecmp( mf_type,"png" )) sh_video->format = mmioFOURCC('M', 'P', 'N', 'G' );
else { mp_msg(MSGT_DEMUX, MSGL_INFO, "[demux_mf] unknow input file type.\n" ); free( dmf ); return NULL; }
sh_video->disp_w = mf_w;
sh_video->disp_h = mf_h;
sh_video->fps = mf_fps;
sh_video->frametime = 1 / sh_video->fps;
// emulate BITMAPINFOHEADER:
sh_video->bih=malloc(sizeof(BITMAPINFOHEADER));
memset(sh_video->bih,0,sizeof(BITMAPINFOHEADER));
sh_video->bih->biSize=40;
sh_video->bih->biWidth = mf_w;
sh_video->bih->biHeight = mf_h;
sh_video->bih->biPlanes=1;
sh_video->bih->biBitCount=24;
sh_video->bih->biCompression=sh_video->format;
sh_video->bih->biSizeImage=sh_video->bih->biWidth*sh_video->bih->biHeight*3;
/* disable seeking */
// demuxer->seekable = 0;
demuxer->priv=(void*)dmf;
return demuxer;
}
void demux_close_mf(demuxer_t* demuxer) {
demuxer_mf_t *dmf = demuxer->priv;
if(!dmf)
return;
free(dmf);
}
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