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