libmpcodecs/vf_fame.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <inttypes.h>
   5
   6 #include "../config.h"
   7 #include "../mp_msg.h"
   8
   9 //#ifdef USE_LIBFAME
  10
  11 // 100=best >=80 very good >=50 fast
  12 #define QUALITY 90
  13
  14 #include "img_format.h"
  15 #include "mp_image.h"
  16 #include "vf.h"
  17
  18 //#include "../libvo/fastmemcpy.h"
  19 #include <fame.h>
  20
  21 struct vf_priv_s {
  22     unsigned char* outbuf;
  23     int outbuf_size;
  24     fame_parameters_t params;
  25     fame_context_t *ctx;
  26     vo_mpegpes_t pes;
  27 };
  28
  29 //===========================================================================//
  30
  31 static int config(struct vf_instance_s* vf,
  32         int width, int height, int d_width, int d_height,
  33         unsigned int flags, unsigned int outfmt){
  34     if(vf_next_query_format(vf,IMGFMT_MPEGPES)<=0) return 0;
  35
  36     vf->priv->params.width=width;
  37     vf->priv->params.height=height;
  38
  39     vf->priv->outbuf_size=10000+width*height;  // must be enough!
  40     if(vf->priv->outbuf) free(vf->priv->outbuf);
  41     vf->priv->outbuf = malloc(vf->priv->outbuf_size);
  42
  43     fame_init(vf->priv->ctx,&vf->priv->params,vf->priv->outbuf,vf->priv->outbuf_size);
  44
  45     return vf_next_config(vf,width,height,d_width,d_height,flags,IMGFMT_MPEGPES);
  46 }
  47
  48 static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){
  49     fame_yuv_t yuv;
  50     mp_image_t *dmpi;
  51     int out_size;
  52
  53     yuv.w=mpi->width;
  54     yuv.h=mpi->height;
  55     yuv.p=mpi->stride[0];
  56     yuv.y=mpi->planes[0];
  57     yuv.u=mpi->planes[1];
  58     yuv.v=mpi->planes[2];
  59
  60 //    out_size = fame_encode_frame(vf->priv->ctx, &yuv, NULL);
  61     fame_start_frame(vf->priv->ctx, &yuv, NULL);
  62     out_size = fame_encode_slice(vf->priv->ctx);
  63     fame_end_frame(vf->priv->ctx, NULL);
  64
  65     if(out_size<=0) return 1;
  66
  67     dmpi=vf_get_image(vf->next,IMGFMT_MPEGPES,
  68         MP_IMGTYPE_EXPORT, 0,
  69         mpi->w, mpi->h);
  70
  71     vf->priv->pes.data=vf->priv->outbuf;
  72     vf->priv->pes.size=out_size;
  73     vf->priv->pes.id=0x1E0;
  74     vf->priv->pes.timestamp=-1; // dunno
  75
  76     dmpi->planes[0]=(void*) &vf->priv->pes;
  77
  78     return vf_next_put_image(vf,dmpi);
  79 }
  80
  81 //===========================================================================//
  82
  83 static int query_format(struct vf_instance_s* vf, unsigned int fmt){
  84     switch(fmt){
  85     case IMGFMT_YV12:
  86     case IMGFMT_I420:
  87     case IMGFMT_IYUV:
  88 //      return (vf_next_query_format(vf,IMGFMT_MPEGPES) & (~(VFCAP_CSP_SUPPORTED_BY_HW|VFCAP_ACCEPT_STRIDE)));
  89         return (vf_next_query_format(vf,IMGFMT_MPEGPES) & (~(VFCAP_CSP_SUPPORTED_BY_HW)));
  90     }
  91     return 0;
  92 }
  93
  94 static int open(vf_instance_t *vf, char* args){
  95     int p_quality=0;
  96     float p_fps=0;
  97
  98     vf->config=config;
  99     vf->put_image=put_image;
 100     vf->query_format=query_format;
 101     vf->priv=malloc(sizeof(struct vf_priv_s));
 102     memset(vf->priv,0,sizeof(struct vf_priv_s));
 103
 104     vf->priv->ctx=fame_open();
 105     if(!vf->priv->ctx){
 106         printf("FATAL: cannot open libFAME!\n");
 107         return 0;
 108     }
 109
 110     // TODO: parse args ->
 111     if(args) sscanf(args, "%d:%f", &p_quality, &p_fps);
 112
 113     if(p_quality<=100){
 114         // fixed quality
 115         vf->priv->params.quality=p_quality?p_quality:QUALITY;
 116         vf->priv->params.bitrate=0;
 117     } else {
 118         // fixed bitrate (in kbits)
 119         vf->priv->params.quality=QUALITY;
 120         vf->priv->params.bitrate=1000*p_quality;
 121     }
 122
 123     if(p_fps<1) p_fps=25.0;
 124     if(p_fps == ((int)p_fps)){
 125         vf->priv->params.frame_rate_num=p_fps;
 126         vf->priv->params.frame_rate_den=1;
 127     } else {
 128         vf->priv->params.frame_rate_num=p_fps*1001;
 129         vf->priv->params.frame_rate_den=1001;
 130     }
 131
 132     vf->priv->params.coding="I";
 133     vf->priv->params.slices_per_frame=1;
 134     vf->priv->params.frames_per_sequence=(int)p_fps;
 135     vf->priv->params.shape_quality=100;
 136     vf->priv->params.search_range=8; // for "IPPP" only
 137     vf->priv->params.verbose=0;
 138     vf->priv->params.profile="mpeg1"; // TODO
 139
 140     return 1;
 141 }
 142
 143 vf_info_t vf_info_fame = {
 144     "realtime mpeg1 encoding with libFAME",
 145     "fame",
 146     "A'rpi",
 147     "",
 148     open,
 149     NULL
 150 };
 151
 152 //===========================================================================//
 153 //#endif