libmpcodecs/vd_mpegpes.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21
  22 #include "config.h"
  23 #include "mp_msg.h"
  24 #include "libmpdemux/mpeg_hdr.h"
  25
  26 #include "vd_internal.h"
  27
  28 static const vd_info_t info =
  29 {
  30         "MPEG 1/2 Video passthrough",
  31         "mpegpes",
  32         "A'rpi",
  33         "A'rpi",
  34         "for hw decoders"
  35 };
  36
  37 LIBVD_EXTERN(mpegpes)
  38
  39 //#include "libmpdemux/parse_es.h"
  40
  41 #include "libvo/video_out.h"
  42
  43 // to set/get/query special features/parameters
  44 static int control(sh_video_t *sh,int cmd,void* arg,...){
  45     return CONTROL_UNKNOWN;
  46 }
  47
  48 // init driver
  49 static int init(sh_video_t *sh){
  50     return mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_MPEGPES);
  51 }
  52
  53 // uninit driver
  54 static void uninit(sh_video_t *sh){
  55 }
  56
  57 // decode a frame
  58 static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
  59     mp_image_t* mpi;
  60     static vo_mpegpes_t packet;
  61     mp_mpeg_header_t picture;
  62     const unsigned char *d = data;
  63
  64     if(len>10 && !d[0] && !d[1] && d[2]==1 && d[3]==0xB3) {
  65         float old_aspect = sh->aspect;
  66         int oldw = sh->disp_w, oldh = sh->disp_h;
  67         mp_header_process_sequence_header(&picture, &d[4]);
  68         sh->aspect = mpeg12_aspect_info(&picture);
  69         sh->disp_w = picture.display_picture_width;
  70         sh->disp_h = picture.display_picture_height;
  71         if(sh->aspect != old_aspect || sh->disp_w != oldw || sh->disp_h != oldh) {
  72             if(!mpcodecs_config_vo(sh, sh->disp_w,sh->disp_h,IMGFMT_MPEGPES))
  73                 return 0;
  74         }
  75     }
  76
  77     mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, 0, sh->disp_w, sh->disp_h);
  78     packet.data=data;
  79     packet.size=len;
  80     packet.timestamp=sh->timer*90000.0;
  81     packet.id=0x1E0; //+sh_video->ds->id;
  82     mpi->planes[0]=(uint8_t*)(&packet);
  83     return mpi;
  84 }