libmpcodecs/ve_xvid.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <errno.h>
   5 #include <math.h>
   6 #include <time.h>
   7
   8 #if !defined(INFINITY) && defined(HUGE_VAL)
   9 #define INFINITY HUGE_VAL
  10 #endif
  11
  12 #include "../config.h"
  13 #include "../mp_msg.h"
  14
  15 #ifdef HAVE_XVID3
  16
  17 #include "codec-cfg.h"
  18 #include "stream.h"
  19 #include "demuxer.h"
  20 #include "stheader.h"
  21
  22 #include "muxer.h"
  23
  24 #include "img_format.h"
  25 #include "mp_image.h"
  26 #include "vf.h"
  27
  28 #include <xvid.h>
  29 #include "xvid_vbr.h"
  30
  31 #include "m_option.h"
  32
  33
  34 #ifdef XVID_API_UNSTABLE
  35 #warning *******************************************************************
  36 #warning **                                                               **
  37 #warning **  Y O U '' R E   U S I N G   U N S T A B L E   S O F T W A R E  **
  38 #warning **                                                               **
  39 #warning ** Streams produced by this version aren''t probably compatible   **
  40 #warning ** with anything else, even the xvid decoder itself. There are   **
  41 #warning ** bugs, this code could crash, could blow up your PC or the     **
  42 #warning ** whole building !                                              **
  43 #warning ** If you want stable code and compatible streams, use stable    **
  44 #warning ** XViD releases (currently 0.9.x).                              **
  45 #warning **                                                               **
  46 #warning *******************************************************************
  47 #endif
  48
  49 /**********************************************************************/
  50 /* motion estimation quality presets */
  51 static int const motion_presets[7] = {
  52 #ifdef XVID_API_UNSTABLE
  53         0,
  54         0,
  55         0,
  56         0,
  57         PMV_HALFPELREFINE16 | PMV_HALFPELDIAMOND8,
  58         PMV_HALFPELREFINE16 | PMV_HALFPELDIAMOND8 | PMV_ADVANCEDDIAMOND16,
  59         PMV_HALFPELREFINE16 | PMV_EXTSEARCH16 | PMV_HALFPELREFINE8 | PMV_HALFPELDIAMOND8 | PMV_USESQUARES16
  60 #else
  61         0,
  62         PMV_QUICKSTOP16,
  63         PMV_EARLYSTOP16,
  64         PMV_EARLYSTOP16 | PMV_EARLYSTOP8,
  65         PMV_EARLYSTOP16 | PMV_HALFPELREFINE16 | PMV_EARLYSTOP8 | PMV_HALFPELDIAMOND8,
  66         PMV_EARLYSTOP16 | PMV_HALFPELREFINE16 | PMV_EARLYSTOP8 | PMV_HALFPELDIAMOND8 | PMV_ADVANCEDDIAMOND16,
  67         PMV_EARLYSTOP16 | PMV_HALFPELREFINE16 | PMV_EXTSEARCH16 | PMV_EARLYSTOP8 | PMV_HALFPELREFINE8 |
  68         PMV_HALFPELDIAMOND8 | PMV_USESQUARES16
  69
  70 #endif
  71 };
  72
  73 extern char* passtmpfile;
  74
  75 static int xvidenc_pass = 0;
  76 static int xvidenc_quality = 6;
  77 static int xvidenc_4mv = 0;
  78 static int xvidenc_bitrate = -1;
  79 static int xvidenc_rc_reaction_delay_factor = -1;
  80 static int xvidenc_rc_averaging_period = -1;
  81 static int xvidenc_rc_buffer = -1;
  82 static char* xvidenc_quant_range = "2-31/2-31";
  83 static int xvidenc_min_key_interval = -1;
  84 static int xvidenc_max_key_interval = -1;
  85 static int xvidenc_mpeg_quant = 0;
  86 static int xvidenc_mod_quant = 0;
  87 static int xvidenc_keyframe_boost = -1;
  88 static int xvidenc_kfthreshold = -1;
  89 static int xvidenc_kfreduction = -1;
  90 static int xvidenc_fixed_quant = 0;
  91 static int xvidenc_debug = 0;
  92 static int xvidenc_interlacing = 0;
  93 static int xvidenc_greyscale = 0;
  94 #ifdef XVID_API_UNSTABLE
  95 static int xvidenc_packed = 0;
  96 static int xvidenc_divx5bvop = 1;
  97 static int xvidenc_lumi_mask = 0;
  98 static int xvidenc_qpel = 0;
  99 static int xvidenc_max_bframes = 0;
 100 static int xvidenc_bquant_ratio = 150;
 101 static int xvidenc_bquant_offset = 100;
 102 static int xvidenc_bf_threshold = 0;
 103 static int xvidenc_gmc = 0;
 104 static int xvidenc_chroma_me = 0;
 105 static int xvidenc_chroma_opt = 0;
 106 static int xvidenc_reduced = 0;
 107 static int xvidenc_hqac = 0;
 108 static int xvidenc_vhq = 0;
 109 static int xvidenc_psnr = 0;
 110 static uint64_t xvid_error[3];
 111 #endif
 112
 113 m_option_t xvidencopts_conf[] = {
 114     { "pass", &xvidenc_pass, CONF_TYPE_INT, CONF_RANGE, 0, 2, NULL},
 115     { "me_quality", &xvidenc_quality, CONF_TYPE_INT, CONF_RANGE, 0,
 116       sizeof(motion_presets) / sizeof(motion_presets[0]) - 1, NULL},
 117     { "4mv", &xvidenc_4mv, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 118     { "bitrate", &xvidenc_bitrate, CONF_TYPE_INT, CONF_RANGE, 4, 24000000, NULL},
 119     { "rc_reaction_delay_factor", &xvidenc_rc_reaction_delay_factor, CONF_TYPE_INT, 0, 0, 0, NULL},
 120     { "rc_averaging_period", &xvidenc_rc_averaging_period, CONF_TYPE_INT, 0, 0, 0, NULL},
 121     { "rc_buffer", &xvidenc_rc_buffer, CONF_TYPE_INT, 0, 0, 0, NULL},
 122     { "quant_range", &xvidenc_quant_range, CONF_TYPE_STRING, 0, 0, 0, NULL},
 123     { "min_key_interval", &xvidenc_min_key_interval, CONF_TYPE_INT, 0, 0, 0, NULL}, /* for XVID_MODE_2PASS_2 */
 124     { "max_key_interval", &xvidenc_max_key_interval, CONF_TYPE_INT, 0, 0, 0, NULL},
 125     { "mpeg_quant", &xvidenc_mpeg_quant, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 126     { "mod_quant", &xvidenc_mod_quant, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 127     { "keyframe_boost", &xvidenc_keyframe_boost, CONF_TYPE_INT, CONF_RANGE, 0, 1000, NULL}, /* for XVID_MODE_2PASS_2 */
 128     { "kfthreshold", &xvidenc_kfthreshold, CONF_TYPE_INT, 0, 0, 0, NULL}, /* for XVID_MODE_2PASS_2 */
 129     { "kfreduction", &xvidenc_kfreduction, CONF_TYPE_INT, CONF_RANGE, 0, 100, NULL}, /* for XVID_MODE_2PASS_2 */
 130     { "fixed_quant", &xvidenc_fixed_quant, CONF_TYPE_INT, CONF_RANGE, 1, 31, NULL}, /* for XVID_MODE_FIXED_QUANT */
 131     { "debug", &xvidenc_debug, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 132     { "interlacing", &xvidenc_interlacing, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 133     { "greyscale", &xvidenc_greyscale, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 134 #ifdef XVID_API_UNSTABLE
 135     { "packed", &xvidenc_packed, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 136     { "divx5bvop", &xvidenc_divx5bvop, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 137     //{ "lumi_mask", &xvidenc_lumi_mask, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 138     { "psnr", &xvidenc_psnr, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 139     { "qpel", &xvidenc_qpel, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 140     { "max_bframes", &xvidenc_max_bframes, CONF_TYPE_INT, CONF_RANGE, 0, 4, NULL},
 141     { "bquant_ratio", &xvidenc_bquant_ratio, CONF_TYPE_INT, CONF_RANGE, 0, 1000, NULL},
 142     { "bquant_offset", &xvidenc_bquant_offset, CONF_TYPE_INT, CONF_RANGE, -1000, 1000, NULL},
 143     { "bf_threshold", &xvidenc_bf_threshold, CONF_TYPE_INT, CONF_RANGE, -255, 255, NULL},
 144     { "reduced", &xvidenc_reduced, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 145     { "gmc", &xvidenc_gmc, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 146     { "chroma_me", &xvidenc_chroma_me, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 147     { "hq_ac", &xvidenc_hqac, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 148     { "vhq", &xvidenc_vhq, CONF_TYPE_INT, CONF_RANGE, 0, 4, NULL},
 149     { "chroma_opt", &xvidenc_chroma_opt, CONF_TYPE_FLAG, 0, 0, 1, NULL},
 150 #endif
 151     { NULL, NULL, 0, 0, 0, 0, NULL}
 152 };
 153
 154 struct vf_priv_s {
 155     muxer_stream_t* mux;
 156     XVID_ENC_FRAME enc_frame;
 157     void* enc_handle;
 158     vbr_control_t vbr_state;
 159     int pixels;
 160     int nb_frames;
 161 };
 162
 163 static int
 164 config(struct vf_instance_s* vf,
 165        int width, int height, int d_width, int d_height,
 166        unsigned int flags, unsigned int outfmt)
 167 {
 168     XVID_ENC_PARAM enc_param;
 169     struct vf_priv_s *fp = vf->priv;
 170     unsigned int min_iq, max_iq, min_pq, max_pq;
 171
 172     fp->mux->bih->biWidth = width;
 173     fp->mux->bih->biHeight = height;
 174     fp->mux->bih->biSizeImage = fp->mux->bih->biWidth * fp->mux->bih->biHeight * 3;
 175     fp->mux->aspect = (float)d_width/d_height;
 176     mp_msg(MSGT_MENCODER,MSGL_INFO,"videocodec: XViD (%dx%d fourcc=%x [%.4s])\n",
 177         width, height, fp->mux->bih->biCompression, (char *)&fp->mux->bih->biCompression);
 178
 179     // {min,max}_{i,p}quantizer parsing & validation
 180     if (sscanf (xvidenc_quant_range, "%u-%u/%u-%u", &min_iq, &max_iq, &min_pq, &max_pq) < 4) {
 181         mp_msg (MSGT_MENCODER, MSGL_ERR,
 182                 "xvid: ERROR: cannot parse \"quant_range=%s\"\n", xvidenc_quant_range);
 183         return 0;
 184     }
 185     if (min_iq < 1 || min_iq > 31 || max_iq < 1 || max_iq > 31 || min_iq > max_iq ||
 186         min_pq < 1 || min_pq > 31 || max_pq < 1 || max_pq > 31 || min_pq > max_pq) {
 187         mp_msg (MSGT_MENCODER, MSGL_ERR,
 188                 "xvid: ERROR: {min,max} {I,P} quantizer must be in [1,31] and min must be <= max.\n");
 189         mp_msg (MSGT_MENCODER, MSGL_ERR,
 190                 "xvid: ERROR: cannot use \"quant_range=%s\"\n", xvidenc_quant_range);
 191         return -1;
 192     }
 193
 194 #ifdef XVID_API_UNSTABLE
 195     mp_msg (MSGT_MENCODER, MSGL_WARN,
 196             "\n"
 197             "*******************************************************************\n"
 198             "**                                                               **\n"
 199             "**  Y O U ' R E   U S I N G   U N S T A B L E   S O F T W A R E  **\n"
 200             "**                                                               **\n"
 201             "** Streams produced by this version aren't probably compatible   **\n"
 202             "** with anything else, even the xvid decoder itself. There are   **\n"
 203             "** bugs, this code could crash, could blow up your PC or the     **\n"
 204             "** whole building !                                              **\n"
 205             "** If you want stable code and compatible streams, use stable    **\n"
 206             "** XViD releases (currently 0.9.x).                              **\n"
 207             "**                                                               **\n"
 208             "*******************************************************************\n"
 209             "\n");
 210 #endif
 211
 212     // initialize XViD core parameters
 213     // ===============================
 214     memset(&enc_param, 0, sizeof(enc_param));
 215     enc_param.width = width;
 216     enc_param.height = height;
 217     enc_param.fincr = fp->mux->h.dwScale;
 218     enc_param.fbase = fp->mux->h.dwRate;
 219     if (xvidenc_bitrate > 16000)
 220         enc_param.rc_bitrate = xvidenc_bitrate;
 221     else if (xvidenc_bitrate > 0)
 222         enc_param.rc_bitrate = xvidenc_bitrate * 1000;
 223     else
 224         enc_param.rc_bitrate = -1;
 225 #ifdef XVID_API_UNSTABLE
 226     if (xvidenc_max_bframes >= 1 && xvidenc_pass >= 1) {
 227         mp_msg(MSGT_MENCODER,MSGL_WARN, "xvid: cannot use bframes with 2-pass, disabling bframes\n");
 228         xvidenc_max_bframes = 0;
 229     }
 230     enc_param.max_bframes = xvidenc_max_bframes;
 231     enc_param.bquant_ratio = xvidenc_bquant_ratio;
 232     enc_param.bquant_offset = xvidenc_bquant_offset;
 233     if (xvidenc_divx5bvop)
 234         enc_param.global |= XVID_GLOBAL_DX50BVOP;
 235     if (xvidenc_packed)
 236         enc_param.global |= XVID_GLOBAL_PACKED;
 237     if (xvidenc_reduced)
 238         enc_param.global |= XVID_GLOBAL_REDUCED;
 239     if (xvidenc_psnr) {
 240         enc_param.global |= XVID_GLOBAL_EXTRASTATS;
 241         fp->pixels = width * height;
 242         fp->nb_frames = 0;
 243         xvid_error[0] = xvid_error[1] = xvid_error[2] = 0;
 244     }
 245     if (xvidenc_greyscale)
 246         enc_param.global |= XVID_GREYSCALE;
 247 #endif
 248     enc_param.rc_reaction_delay_factor = xvidenc_rc_reaction_delay_factor;
 249     enc_param.rc_averaging_period = xvidenc_rc_averaging_period;
 250     enc_param.rc_buffer = xvidenc_rc_buffer;
 251     enc_param.min_quantizer = min_iq;
 252     enc_param.max_quantizer = max_iq;
 253     if( xvidenc_max_key_interval <= 0 )
 254         xvidenc_max_key_interval = 10 * enc_param.fbase / enc_param.fincr;
 255     enc_param.max_key_interval = xvidenc_max_key_interval;
 256     switch (xvid_encore(NULL, XVID_ENC_CREATE, &enc_param, NULL)) {
 257     case XVID_ERR_FAIL:
 258         mp_msg(MSGT_MENCODER,MSGL_ERR, "xvid: encoder creation failed\n");
 259         return 0;
 260     case XVID_ERR_MEMORY:
 261         mp_msg(MSGT_MENCODER,MSGL_ERR, "xvid: encoder creation failed, out of memory\n");
 262         return 0;
 263     case XVID_ERR_FORMAT:
 264         mp_msg(MSGT_MENCODER,MSGL_ERR, "xvid: encoder creation failed, bad format\n");
 265         return 0;
 266     }
 267     fp->enc_handle = enc_param.handle;
 268
 269     // initialize XViD per-frame static parameters
 270     // ===========================================
 271     fp->enc_frame.motion = motion_presets[xvidenc_quality];
 272     fp->enc_frame.general = XVID_HALFPEL | (xvidenc_mpeg_quant ? XVID_MPEGQUANT : XVID_H263QUANT);
 273     if (xvidenc_4mv)
 274         fp->enc_frame.general |= XVID_INTER4V;
 275     if (xvidenc_interlacing)
 276         fp->enc_frame.general |= XVID_INTERLACING;
 277 #ifdef XVID_API_UNSTABLE
 278     fp->enc_frame.bframe_threshold = xvidenc_bf_threshold;
 279     if (xvidenc_lumi_mask)
 280         fp->enc_frame.general |= XVID_LUMIMASKING;
 281     if (xvidenc_qpel) {
 282         fp->enc_frame.general |= XVID_QUARTERPEL;
 283         fp->enc_frame.motion |= PMV_QUARTERPELREFINE16 | PMV_QUARTERPELREFINE8;
 284     }
 285     switch (xvidenc_vhq) {
 286     case 4: // wide search
 287         fp->enc_frame.motion |= EXTSEARCH_BITS | PMV_EXTSEARCH8;
 288     case 3: // medium search
 289         fp->enc_frame.motion |= HALFPELREFINE8_BITS | QUARTERPELREFINE8_BITS | CHECKPREDICTION_BITS;
 290     case 2: // limited search
 291         fp->enc_frame.motion |= HALFPELREFINE16_BITS | QUARTERPELREFINE16_BITS;
 292     case 1: // mode decision
 293         fp->enc_frame.general |= XVID_MODEDECISION_BITS;
 294         break;
 295     case 0: // off
 296         break;
 297     }
 298     if (xvidenc_gmc)
 299         fp->enc_frame.general |= XVID_GMC;
 300     if (xvidenc_psnr)
 301         fp->enc_frame.general |= XVID_EXTRASTATS;
 302     if (xvidenc_chroma_me)
 303         fp->enc_frame.motion |= PMV_CHROMA16 | PMV_CHROMA8;
 304     if(xvidenc_reduced)
 305         fp->enc_frame.general |= XVID_REDUCED;
 306     if(xvidenc_hqac)
 307         fp->enc_frame.general |= XVID_HQACPRED;
 308     if (xvidenc_chroma_opt)
 309         fp->enc_frame.general |= XVID_CHROMAOPT;
 310 #else
 311     if (xvidenc_greyscale)
 312         fp->enc_frame.general |= XVID_GREYSCALE;
 313 #endif
 314
 315     switch (outfmt) {
 316     case IMGFMT_YV12:
 317         fp->enc_frame.colorspace = XVID_CSP_YV12;
 318         break;
 319     case IMGFMT_IYUV: case IMGFMT_I420:
 320         fp->enc_frame.colorspace = XVID_CSP_I420;
 321         break;
 322     case IMGFMT_YUY2:
 323         fp->enc_frame.colorspace = XVID_CSP_YUY2;
 324         break;
 325     case IMGFMT_UYVY:
 326         fp->enc_frame.colorspace = XVID_CSP_UYVY;
 327         break;
 328     case IMGFMT_RGB24: case IMGFMT_BGR24:
 329         fp->enc_frame.colorspace = XVID_CSP_RGB24;
 330         break;
 331     default:
 332         mp_msg(MSGT_MENCODER,MSGL_ERR,"xvid: unsupported picture format (%s)!\n",
 333                vo_format_name(outfmt));
 334         return 0;
 335     }
 336     fp->enc_frame.quant_intra_matrix = 0;
 337     fp->enc_frame.quant_inter_matrix = 0;
 338
 339     // initialize VBR engine
 340     // =====================
 341     vbrSetDefaults(&fp->vbr_state);
 342     if (xvidenc_min_key_interval < 0)
 343         xvidenc_min_key_interval = fp->vbr_state.min_key_interval;
 344
 345     // pass
 346     if (xvidenc_pass == 0) {
 347         if (xvidenc_fixed_quant >= 1) {
 348             fp->vbr_state.mode = VBR_MODE_FIXED_QUANT;
 349             fp->vbr_state.fixed_quant = xvidenc_fixed_quant;
 350         } else
 351             fp->vbr_state.mode = VBR_MODE_1PASS;
 352     }
 353     else if (xvidenc_pass == 1)
 354         fp->vbr_state.mode = VBR_MODE_2PASS_1;
 355     else if (xvidenc_pass == 2)
 356         fp->vbr_state.mode = VBR_MODE_2PASS_2;
 357     else
 358         return -1;
 359
 360     // misc
 361     fp->vbr_state.fps = (double)enc_param.fbase / enc_param.fincr;
 362     fp->vbr_state.filename = passtmpfile;
 363     fp->vbr_state.desired_bitrate = enc_param.rc_bitrate;
 364     fp->vbr_state.min_iquant = min_iq;
 365     fp->vbr_state.max_iquant = max_iq;
 366     fp->vbr_state.min_pquant = min_pq;
 367     fp->vbr_state.max_pquant = max_pq;
 368     if (xvidenc_keyframe_boost >= 0)
 369         fp->vbr_state.keyframe_boost = xvidenc_keyframe_boost;
 370     if (xvidenc_kfthreshold >= 0)
 371         fp->vbr_state.kftreshold = xvidenc_kfthreshold;
 372     if (xvidenc_kfreduction >= 0)
 373         fp->vbr_state.kfreduction = xvidenc_kfreduction;
 374     if (xvidenc_min_key_interval >= 0)
 375         fp->vbr_state.min_key_interval = xvidenc_min_key_interval;
 376     fp->vbr_state.max_key_interval = enc_param.max_key_interval;
 377     fp->vbr_state.debug = xvidenc_debug;
 378
 379     vbrInit(&fp->vbr_state);
 380
 381     return 1;
 382 }
 383
 384 #ifdef XVID_API_UNSTABLE
 385 static double
 386 sse_to_PSNR(double sse, double pixels)
 387 {
 388     return sse == 0 ? INFINITY : 4.34294481903251827652 * (11.08252709031685229249 - log(sse/pixels));
 389     // 4.34294481903251827652 = 10/log(10)
 390     // 11.08252709031685229249 = log(255*255)
 391 }
 392 #endif
 393
 394 static void
 395 uninit(struct vf_instance_s* vf)
 396 {
 397     struct vf_priv_s *fp = vf->priv;
 398
 399 #ifdef XVID_API_UNSTABLE
 400     if (xvidenc_psnr) {
 401         double p = (double)fp->pixels * (double)fp->nb_frames;
 402         printf ("PSNR: Y:%2.2f, Cb:%2.2f, Cr:%2.2f, All:%2.2f\n",
 403                 sse_to_PSNR(xvid_error[0], p),
 404                 sse_to_PSNR(xvid_error[1], p/4),
 405                 sse_to_PSNR(xvid_error[2], p/4),
 406                 sse_to_PSNR(xvid_error[0] + xvid_error[1] + xvid_error[2], p*1.5));
 407     }
 408 #endif
 409     vbrFinish(&fp->vbr_state);
 410 }
 411
 412 static int
 413 control(struct vf_instance_s* vf, int request, void* data)
 414 {
 415     return CONTROL_UNKNOWN;
 416 }
 417
 418 static int
 419 query_format(struct vf_instance_s* vf, unsigned int fmt)
 420 {
 421     switch(fmt){
 422     case IMGFMT_YV12: case IMGFMT_IYUV: case IMGFMT_I420:
 423         return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW;
 424     case IMGFMT_YUY2: case IMGFMT_UYVY:
 425         return VFCAP_CSP_SUPPORTED;
 426     case IMGFMT_RGB24: case IMGFMT_BGR24:
 427         return VFCAP_CSP_SUPPORTED | VFCAP_FLIPPED;
 428     }
 429     return 0;
 430 }
 431
 432 static int
 433 put_image(struct vf_instance_s* vf, mp_image_t *mpi)
 434 {
 435     XVID_ENC_STATS enc_stats;
 436     struct vf_priv_s *fp = vf->priv;
 437
 438     fp->enc_frame.bitstream = fp->mux->buffer;
 439     fp->enc_frame.length = -1 /* fp->mux->buffer_size */;
 440     fp->enc_frame.image = mpi->planes[0];
 441 #ifdef XVID_API_UNSTABLE
 442     fp->enc_frame.stride = mpi->stride[0];
 443 #endif
 444
 445     // get quantizers & I/P decision from the VBR engine
 446 #ifdef XVID_API_UNSTABLE
 447     if (xvidenc_max_bframes >= 1) {
 448         if (xvidenc_fixed_quant!=0) {
 449             // hack, the internal VBR engine isn't fixed-quant aware
 450             fp->enc_frame.quant = xvidenc_fixed_quant;
 451             fp->enc_frame.intra = -1;
 452             fp->enc_frame.bquant = (xvidenc_fixed_quant * xvidenc_bquant_ratio + xvidenc_bquant_offset) / 100;
 453         } else
 454             // use the internal VBR engine since the external one isn't bframe aware
 455             fp->enc_frame.quant =0;
 456             fp->enc_frame.intra =-1;
 457             fp->enc_frame.bquant = 0;
 458     } else {
 459         fp->enc_frame.quant = vbrGetQuant(&fp->vbr_state);
 460         fp->enc_frame.intra = vbrGetIntra(&fp->vbr_state);
 461     }
 462 #else
 463     fp->enc_frame.quant = vbrGetQuant(&fp->vbr_state);
 464     fp->enc_frame.intra = vbrGetIntra(&fp->vbr_state);
 465 #endif
 466
 467     // modulated quantizer type
 468     if (xvidenc_mod_quant && xvidenc_pass == 2) {
 469         fp->enc_frame.general |= (fp->enc_frame.quant < 4) ? XVID_MPEGQUANT : XVID_H263QUANT;
 470         fp->enc_frame.general &= (fp->enc_frame.quant < 4) ? ~XVID_H263QUANT : ~XVID_MPEGQUANT;
 471     }
 472
 473     // encode frame
 474     switch (xvid_encore(fp->enc_handle, XVID_ENC_ENCODE, &fp->enc_frame, &enc_stats)) {
 475     case XVID_ERR_OK:
 476         break;
 477     case XVID_ERR_MEMORY:
 478         mp_msg(MSGT_MENCODER, MSGL_ERR, "xvid: out of memory\n");
 479         break;
 480     case XVID_ERR_FORMAT:
 481         mp_msg(MSGT_MENCODER, MSGL_ERR, "xvid: bad format\n");
 482         break;
 483     default:
 484         mp_msg(MSGT_MENCODER, MSGL_ERR, "xvid: failure\n");
 485         break;
 486     }
 487
 488 #ifdef XVID_API_UNSTABLE
 489     if (xvidenc_psnr) {
 490         static FILE *fvstats = NULL;
 491         char filename[20];
 492
 493         if (!fvstats) {
 494             time_t today2;
 495             struct tm *today;
 496             today2 = time (NULL);
 497             today = localtime (&today2);
 498             sprintf (filename, "psnr_%02d%02d%02d.log", today->tm_hour, today->tm_min, today->tm_sec);
 499             fvstats = fopen (filename,"w");
 500             if (!fvstats) {
 501                 perror ("fopen");
 502                 xvidenc_psnr = 0; // disable block
 503             }
 504         }
 505
 506         xvid_error[0] += enc_stats.sse_y;
 507         xvid_error[1] += enc_stats.sse_u;
 508         xvid_error[2] += enc_stats.sse_v;
 509
 510         fprintf (fvstats, "%6d, %2d, %6d, %2.2f, %2.2f, %2.2f, %2.2f %c\n",
 511                  fp->nb_frames,
 512                  enc_stats.quant,
 513                  fp->enc_frame.length,
 514                  sse_to_PSNR (enc_stats.sse_y, fp->pixels),
 515                  sse_to_PSNR (enc_stats.sse_u, fp->pixels / 4),
 516                  sse_to_PSNR (enc_stats.sse_v, fp->pixels / 4),
 517                  sse_to_PSNR (enc_stats.sse_y + enc_stats.sse_u + enc_stats.sse_v, (double)fp->pixels * 1.5),
 518                  fp->enc_frame.intra == 0 ? 'P' : fp->enc_frame.intra == 1 ? 'I' : 'B'
 519                  );
 520
 521         fp->nb_frames++;
 522     }
 523 #endif
 524
 525     // write output
 526     muxer_write_chunk(fp->mux, fp->enc_frame.length, fp->enc_frame.intra==1 ? 0x10 : 0);
 527
 528     // update the VBR engine
 529     vbrUpdate(&fp->vbr_state, enc_stats.quant, fp->enc_frame.intra,
 530               enc_stats.hlength, fp->enc_frame.length, enc_stats.kblks, enc_stats.mblks, enc_stats.ublks);
 531
 532     return 1;
 533 }
 534
 535 //===========================================================================//
 536
 537 static int
 538 vf_open(vf_instance_t *vf, char* args)
 539 {
 540     XVID_INIT_PARAM params = { 0, 0, 0};
 541     vf->config = config;
 542     vf->control = control;
 543     vf->uninit = uninit;
 544     vf->query_format = query_format;
 545     vf->put_image = put_image;
 546     vf->priv = malloc(sizeof(struct vf_priv_s));
 547     memset(vf->priv, 0, sizeof(struct vf_priv_s));
 548     vf->priv->mux = (muxer_stream_t*)args;
 549
 550     vf->priv->mux->bih = malloc(sizeof(BITMAPINFOHEADER));
 551     vf->priv->mux->bih->biSize = sizeof(BITMAPINFOHEADER);
 552     vf->priv->mux->bih->biWidth = 0;
 553     vf->priv->mux->bih->biHeight = 0;
 554     vf->priv->mux->bih->biPlanes = 1;
 555     vf->priv->mux->bih->biBitCount = 24;
 556     vf->priv->mux->bih->biCompression = mmioFOURCC('X','V','I','D');
 557
 558     if (xvid_init(NULL, 0, &params, NULL) != XVID_ERR_OK) {
 559         mp_msg(MSGT_MENCODER,MSGL_ERR, "xvid: initialisation failure\n");
 560         abort();
 561     }
 562     if (params.api_version != API_VERSION) {
 563         mp_msg(MSGT_MENCODER,MSGL_ERR, "xvid: XviD library API version mismatch\n"
 564                 "\texpected %d.%d, got %d.%d, you should recompile MPlayer.\n",
 565                 API_VERSION >> 16, API_VERSION & 0xff,
 566                 params.api_version >> 16, params.api_version & 0xff);
 567         abort();
 568     }
 569
 570     return 1;
 571 }
 572
 573 vf_info_t ve_info_xvid = {
 574     "XviD encoder",
 575     "xvid",
 576     "Kim Minh Kaplan & Rémi Guyomarch",
 577     "for internal use by mencoder",
 578     vf_open
 579 };
 580
 581 //===========================================================================//
 582 #endif