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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#ifdef USE_LIBAVCODEC
#include "bswap.h"
#include "codec-cfg.h"
#include "../libvo/img_format.h"
#include "stream.h"
#include "demuxer.h"
#include "stheader.h"
#include "vd.h"
#include "vd_internal.h"
static vd_info_t info = {
"FFmpeg's libavcodec codec family",
"ffmpeg",
VFM_FFMPEG,
"A'rpi",
"http://ffmpeg.sf.net",
"native codecs"
};
LIBVD_EXTERN(ffmpeg)
#ifdef USE_LIBAVCODEC_SO
#include <libffmpeg/avcodec.h>
#else
#include "libavcodec/avcodec.h"
#endif
int avcodec_inited=0;
//#ifdef FF_POSTPROCESS
//unsigned int lavc_pp=0;
//#endif
// 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){
AVCodec *lavc_codec;
AVCodecContext *ctx;
if(!avcodec_inited){
avcodec_init();
avcodec_register_all();
avcodec_inited=1;
}
lavc_codec = (AVCodec *)avcodec_find_decoder_by_name(sh->codec->dll);
if(!lavc_codec){
mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_MissingLAVCcodec,sh->codec->dll);
return 0;
}
ctx = sh->context = malloc(sizeof(AVCodecContext));
memset(ctx, 0, sizeof(AVCodecContext));
ctx->width = sh->disp_w;
ctx->height= sh->disp_h;
mp_dbg(MSGT_DECVIDEO,MSGL_DBG2,"libavcodec.size: %d x %d\n",ctx->width,ctx->height);
if (sh->format == mmioFOURCC('R', 'V', '1', '3'))
ctx->sub_id = 3;
/* open it */
if (avcodec_open(ctx, lavc_codec) < 0) {
mp_msg(MSGT_DECVIDEO,MSGL_ERR, MSGTR_CantOpenCodec);
return 0;
}
mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: libavcodec init OK!\n");
mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_YV12);
return 1;
}
// uninit driver
static void uninit(sh_video_t *sh){
if (avcodec_close(sh->context) < 0)
mp_msg(MSGT_DECVIDEO,MSGL_ERR, MSGTR_CantCloseCodec);
}
//mp_image_t* mpcodecs_get_image(sh_video_t *sh, int mp_imgtype, int mp_imgflag, int w, int h);
// decode a frame
static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
int got_picture=0;
int ret;
AVPicture lavc_picture;
AVCodecContext *ctx = sh->context;
mp_image_t* mpi;
if(len<=0) return NULL; // skipped frame
ret = avcodec_decode_video(sh->context, &lavc_picture,
&got_picture, data, len);
if(ret<0) mp_msg(MSGT_DECVIDEO,MSGL_WARN, "Error while decoding frame!\n");
if(!got_picture) return NULL; // skipped image
mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE,
ctx->width, ctx->height);
if(!mpi){ // temporary!
printf("couldn't allocate image for cinepak codec\n");
return NULL;
}
mpi->planes[0]=lavc_picture.data[0];
mpi->planes[1]=lavc_picture.data[1];
mpi->planes[2]=lavc_picture.data[2];
mpi->stride[0]=lavc_picture.linesize[0];
mpi->stride[1]=lavc_picture.linesize[1];
mpi->stride[2]=lavc_picture.linesize[2];
if(ctx->pix_fmt==PIX_FMT_YUV422P){
mpi->stride[1]*=2;
mpi->stride[2]*=2;
}
return mpi;
}
#endif
|
