mirror of https://github.com/mpv-player/mpv
222 lines
6.4 KiB
C
222 lines
6.4 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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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 "stream/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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static void demux_seek_mf(demuxer_t *demuxer,float rel_seek_secs,float audio_delay,int flags){
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mf_t * mf = (mf_t *)demuxer->priv;
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sh_video_t * sh_video = demuxer->video->sh;
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int newpos = (flags & SEEK_ABSOLUTE)?0:mf->curr_frame - 1;
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if ( flags & SEEK_FACTOR ) newpos+=rel_seek_secs*(mf->nr_of_files - 1);
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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_files) newpos=mf->nr_of_files - 1;
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demuxer->filepos=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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static int demux_mf_fill_buffer(demuxer_t *demuxer, demux_stream_t *ds){
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mf_t * mf;
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struct stat fs;
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FILE * f;
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mf=(mf_t*)demuxer->priv;
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if ( mf->curr_frame >= mf->nr_of_files ) return 0;
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stat( mf->names[mf->curr_frame],&fs );
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// printf( "[demux_mf] frame: %d (%s,%d)\n",mf->curr_frame,mf->names[mf->curr_frame],fs.st_size );
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if ( !( f=fopen( mf->names[mf->curr_frame],"rb" ) ) ) 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=mf->curr_frame / sh_video->fps;
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dp->pos=mf->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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demuxer->filepos=mf->curr_frame++;
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return 1;
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}
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// force extension/type to have a fourcc
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static const struct {
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const char *type;
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uint32_t format;
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} type2format[] = {
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{ "bmp", mmioFOURCC('b', 'm', 'p', ' ') },
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{ "dpx", mmioFOURCC('d', 'p', 'x', ' ') },
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{ "j2k", mmioFOURCC('M', 'J', '2', 'C') },
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{ "jp2", mmioFOURCC('M', 'J', '2', 'C') },
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{ "jpeg", mmioFOURCC('I', 'J', 'P', 'G') },
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{ "jpg", mmioFOURCC('I', 'J', 'P', 'G') },
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{ "jls", mmioFOURCC('I', 'J', 'P', 'G') },
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{ "thm", mmioFOURCC('I', 'J', 'P', 'G') },
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{ "db", mmioFOURCC('I', 'J', 'P', 'G') },
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{ "pcx", mmioFOURCC('p', 'c', 'x', ' ') },
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{ "png", mmioFOURCC('M', 'P', 'N', 'G') },
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{ "ptx", mmioFOURCC('p', 't', 'x', ' ') },
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{ "tga", mmioFOURCC('M', 'T', 'G', 'A') },
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{ "tif", mmioFOURCC('t', 'i', 'f', 'f') },
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{ "sgi", mmioFOURCC('S', 'G', 'I', '1') },
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{ "sun", mmioFOURCC('s', 'u', 'n', ' ') },
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{ "ras", mmioFOURCC('s', 'u', 'n', ' ') },
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{ "ra", mmioFOURCC('s', 'u', 'n', ' ') },
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{ "im1", mmioFOURCC('s', 'u', 'n', ' ') },
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{ "im8", mmioFOURCC('s', 'u', 'n', ' ') },
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{ "im24", mmioFOURCC('s', 'u', 'n', ' ') },
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{ "sunras", mmioFOURCC('s', 'u', 'n', ' ') },
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{ NULL, 0 }
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};
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static 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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int i;
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if(!demuxer->stream->url) return NULL;
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if(strncmp(demuxer->stream->url, "mf://", 5)) return NULL;
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mf=open_mf(demuxer->stream->url + 5);
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if(!mf) return NULL;
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if(!mf_type){
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char* p=strrchr(mf->names[0],'.');
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if(!p){
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mp_msg(MSGT_DEMUX, MSGL_INFO, "[demux_mf] file type was not set! (try -mf type=xxx)\n" );
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free( mf ); return NULL;
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}
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mf_type=strdup(p+1);
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mp_msg(MSGT_DEMUX, MSGL_INFO, "[demux_mf] file type was not set! trying 'type=%s'...\n", mf_type);
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}
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demuxer->filepos=mf->curr_frame=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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// 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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for (i = 0; type2format[i].type; i++)
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if (strcasecmp(mf_type, type2format[i].type) == 0)
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break;
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if (!type2format[i].type) {
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mp_msg(MSGT_DEMUX, MSGL_INFO, "[demux_mf] unknown input file type.\n" );
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free(mf);
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return NULL;
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}
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sh_video->format = type2format[i].format;
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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=calloc(1, sizeof(*sh_video->bih));
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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*)mf;
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return demuxer;
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}
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static void demux_close_mf(demuxer_t* demuxer) {
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mf_t *mf = demuxer->priv;
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if(!mf)
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return;
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free(mf);
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}
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static int demux_control_mf(demuxer_t *demuxer, int cmd, void *arg) {
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mf_t *mf = (mf_t *)demuxer->priv;
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sh_video_t *sh_video = demuxer->video->sh;
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switch(cmd) {
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case DEMUXER_CTRL_GET_TIME_LENGTH:
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*((double *)arg) = (double)mf->nr_of_files / sh_video->fps;
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return DEMUXER_CTRL_OK;
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case DEMUXER_CTRL_GET_PERCENT_POS:
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if (mf->nr_of_files <= 1)
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return DEMUXER_CTRL_DONTKNOW;
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*((int *)arg) = 100 * mf->curr_frame / (mf->nr_of_files - 1);
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return DEMUXER_CTRL_OK;
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default:
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return DEMUXER_CTRL_NOTIMPL;
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}
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}
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const demuxer_desc_t demuxer_desc_mf = {
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"mf demuxer",
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"mf",
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"MF",
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"?",
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"multiframe?, pictures demuxer",
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DEMUXER_TYPE_MF,
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0, // no autodetect
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NULL,
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demux_mf_fill_buffer,
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demux_open_mf,
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demux_close_mf,
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demux_seek_mf,
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demux_control_mf
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};
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