1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
#include <stdio.h>
#include <stdlib.h>
#include "config.h"
#include "mp_msg.h"
#include "vd_internal.h"
static vd_info_t info =
{
"MPEG 1/2 Video decoder",
"libmpeg2",
VFM_MPEG,
"A'rpi",
"Aaron & Walken",
"native"
};
LIBVD_EXTERN(libmpeg2)
#include "libmpdemux/parse_es.h"
#include "libvo/video_out.h"
#include "libmpeg2/mpeg2.h"
#include "libmpeg2/mpeg2_internal.h"
extern picture_t *picture; // exported from libmpeg2/decode.c
// to set/get/query special features/parameters
static int control(sh_video_t *sh,int cmd,void* arg,...){
return CONTROL_UNKNOWN;
}
// init driver
static int init(sh_video_t *sh){
mpeg2_init();
picture->pp_options=divx_quality;
// send seq header to the decoder: *** HACK ***
mpeg2_decode_data(NULL,videobuffer,videobuffer+videobuf_len,0);
mpeg2_allocate_image_buffers (picture);
return mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_YV12);
}
// uninit driver
static void uninit(sh_video_t *sh){
mpeg2_free_image_buffers (picture);
}
// decode a frame
static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
mp_image_t* mpi;
if(sh->codec->outfmt[sh->outfmtidx]==IMGFMT_MPEGPES){
static vo_mpegpes_t packet;
mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, 0,
sh->disp_w, sh->disp_h);
// hardware decoding:
// mpeg2_decode_data(video_out, start, start+in_size,3); // parse headers
packet.data=data;
packet.size=len-4;
packet.timestamp=sh->timer*90000.0;
packet.id=0x1E0; //+sh_video->ds->id;
mpi->planes[0]=(uint8_t*)(&packet);
} else {
mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_DRAW_CALLBACK,
sh->disp_w, sh->disp_h);
if(
mpeg2_decode_data(sh->video_out, data, data+len,flags&3)==0 // decode
)return NULL;//hack for interlaced mpeg2
}
return mpi;
}
|
