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/*
* video frame reading
*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "mp_msg.h"
#include "stream/stream.h"
#include "demuxer.h"
#ifdef DEMUX_TY_OSD
#include "demux_ty_osd.h"
#endif
#include "stheader.h"
/* biCompression constant */
#define BI_RGB 0L
#ifdef CONFIG_LIVE555
#include "demux_rtp.h"
#endif
int video_read_properties(sh_video_t *sh_video){
demux_stream_t *d_video=sh_video->ds;
if((d_video->demuxer->file_format == DEMUXER_TYPE_ASF) || (d_video->demuxer->file_format == DEMUXER_TYPE_AVI)) {
// display info:
// in case no strf chunk has been seen in avi, we have no bitmap header
if(!sh_video->bih) return 0;
sh_video->format=sh_video->bih->biCompression;
sh_video->disp_w=sh_video->bih->biWidth;
sh_video->disp_h=abs(sh_video->bih->biHeight);
}
return 1;
}
int video_read_frame(sh_video_t* sh_video,float* frame_time_ptr,unsigned char** start,int force_fps){
demux_stream_t *d_video=sh_video->ds;
demuxer_t *demuxer=d_video->demuxer;
float frame_time=1;
float pts1=d_video->pts;
int in_size=0;
*start=NULL;
// frame-based file formats: (AVI,ASF,MOV)
in_size=ds_get_packet(d_video,start);
if(in_size<0) return -1; // EOF
//------------------------ frame decoded. --------------------
// Increase video timers:
sh_video->num_frames+=frame_time;
++sh_video->num_frames_decoded;
frame_time*=sh_video->frametime;
// override frame_time for variable/unknown FPS formats:
if(!force_fps) switch(demuxer->file_format){
case DEMUXER_TYPE_GIF:
case DEMUXER_TYPE_MATROSKA:
case DEMUXER_TYPE_MNG:
if(d_video->pts>0 && pts1>0 && d_video->pts>pts1)
frame_time=d_video->pts-pts1;
break;
case DEMUXER_TYPE_TV:
case DEMUXER_TYPE_VIVO:
case DEMUXER_TYPE_ASF: {
double next_pts = ds_get_next_pts(d_video);
double d= (next_pts != MP_NOPTS_VALUE) ? next_pts - d_video->pts : d_video->pts-pts1;
if(d>=0){
if(d>0){
if((int)sh_video->fps==1000)
mp_msg(MSGT_CPLAYER,MSGL_V,"\navg. framerate: %d fps \n",(int)(1.0f/d));
sh_video->frametime=d; // 1ms
sh_video->fps=1.0f/d;
}
frame_time = d;
} else {
mp_msg(MSGT_CPLAYER,MSGL_WARN,"\nInvalid frame duration value (%5.3f/%5.3f => %5.3f). Defaulting to %5.3f sec.\n",d_video->pts,next_pts,d,frame_time);
// frame_time = 1/25.0;
}
}
break;
case DEMUXER_TYPE_LAVF:
case DEMUXER_TYPE_LAVF_PREFERRED:
if((int)sh_video->fps==1000 || (int)sh_video->fps<=1){
double next_pts = ds_get_next_pts(d_video);
double d= (next_pts != MP_NOPTS_VALUE) ? next_pts - d_video->pts : d_video->pts-pts1;
if(d>=0){
frame_time = d;
}
}
break;
case DEMUXER_TYPE_REAL:
{
double next_pts = ds_get_next_pts(d_video);
double d = (next_pts != MP_NOPTS_VALUE) ? next_pts - d_video->pts : d_video->pts - pts1;
frame_time = (d >= 0 && pts1 > 0) ? d : 0.001;
}
break;
}
sh_video->pts=d_video->pts;
if(frame_time_ptr) *frame_time_ptr=frame_time;
return in_size;
}
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