aboutsummaryrefslogtreecommitdiffhomepage
path: root/libmpcodecs/vf_fame.c
blob: a996019aa80ce4f2a9a06fa383e41058b95fc001 (plain)
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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>

#include "../config.h"
#include "../mp_msg.h"

//#ifdef USE_LIBFAME

// 100=best >=80 very good >=50 fast
#define QUALITY 90

#include "img_format.h"
#include "mp_image.h"
#include "vf.h"

//#include "../libvo/fastmemcpy.h"
#include "../libfame/fame.h"

struct vf_priv_s {
    unsigned char* outbuf;
    int outbuf_size;
    fame_parameters_t params;
    fame_context_t *ctx;
    vo_mpegpes_t pes;
};

//===========================================================================//

static int config(struct vf_instance_s* vf,
        int width, int height, int d_width, int d_height,
	unsigned int flags, unsigned int outfmt){
    if(vf_next_query_format(vf,IMGFMT_MPEGPES)<=0) return 0;

    vf->priv->params.width=width;
    vf->priv->params.height=height;

    vf->priv->outbuf_size=10000+width*height;  // must be enough!
    if(vf->priv->outbuf) free(vf->priv->outbuf);
    vf->priv->outbuf = malloc(vf->priv->outbuf_size);

    fame_init(vf->priv->ctx,&vf->priv->params,vf->priv->outbuf,vf->priv->outbuf_size);

    return vf_next_config(vf,width,height,d_width,d_height,flags,IMGFMT_MPEGPES);
}

static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){
    fame_yuv_t yuv;
    mp_image_t *dmpi;
    int out_size;

    yuv.w=mpi->width;
    yuv.h=mpi->height;
    yuv.p=mpi->stride[0];
    yuv.y=mpi->planes[0];
    yuv.u=mpi->planes[1];
    yuv.v=mpi->planes[2];

//    out_size = fame_encode_frame(vf->priv->ctx, &yuv, NULL);
    fame_start_frame(vf->priv->ctx, &yuv, NULL);
    out_size = fame_encode_slice(vf->priv->ctx);
    fame_end_frame(vf->priv->ctx, NULL);
    
    if(out_size<=0) return 1;

    dmpi=vf_get_image(vf->next,IMGFMT_MPEGPES,
	MP_IMGTYPE_EXPORT, 0,
	mpi->w, mpi->h);
    
    vf->priv->pes.data=vf->priv->outbuf;
    vf->priv->pes.size=out_size;
    vf->priv->pes.id=0x1E0;
    vf->priv->pes.timestamp=-1; // dunno
    
    dmpi->planes[0]=(void*) &vf->priv->pes;
    
    return vf_next_put_image(vf,dmpi);
}

//===========================================================================//

static int query_format(struct vf_instance_s* vf, unsigned int fmt){
    switch(fmt){
    case IMGFMT_YV12:
    case IMGFMT_I420:
    case IMGFMT_IYUV:
//	return (vf_next_query_format(vf,IMGFMT_MPEGPES) & (~(VFCAP_CSP_SUPPORTED_BY_HW|VFCAP_ACCEPT_STRIDE)));
	return (vf_next_query_format(vf,IMGFMT_MPEGPES) & (~(VFCAP_CSP_SUPPORTED_BY_HW)));
    }
    return 0;
}

static int open(vf_instance_t *vf, char* args){
    int p_quality=0;
    float p_fps=0;

    vf->config=config;
    vf->put_image=put_image;
    vf->query_format=query_format;
    vf->priv=malloc(sizeof(struct vf_priv_s));
    memset(vf->priv,0,sizeof(struct vf_priv_s));

    vf->priv->ctx=fame_open();
    if(!vf->priv->ctx){
	printf("FATAL: cannot open libFAME!\n");
	return 0;
    }

    // TODO: parse args ->
    if(args) sscanf(args, "%d:%f", &p_quality, &p_fps);

    if(p_quality<=100){
	// fixed quality
	vf->priv->params.quality=p_quality?p_quality:QUALITY;
	vf->priv->params.bitrate=0;
    } else {
	// fixed bitrate (in kbits)
	vf->priv->params.quality=QUALITY;
	vf->priv->params.bitrate=1000*p_quality;
    }

    if(p_fps<1) p_fps=25.0;
    if(p_fps == ((int)p_fps)){
	vf->priv->params.frame_rate_num=p_fps;
	vf->priv->params.frame_rate_den=1;
    } else {
	vf->priv->params.frame_rate_num=p_fps*1001;
	vf->priv->params.frame_rate_den=1001;
    }

    vf->priv->params.coding="I";
    vf->priv->params.slices_per_frame=1;
    vf->priv->params.frames_per_sequence=(int)p_fps;
    vf->priv->params.shape_quality=100;
    vf->priv->params.search_range=8; // for "IPPP" only
    vf->priv->params.verbose=0;
    vf->priv->params.profile="mpeg1"; // TODO

    return 1;
}

vf_info_t vf_info_fame = {
    "realtime mpeg1 encoding with libFAME",
    "fame",
    "A'rpi",
    "",
    open
};

//===========================================================================//
//#endif