test/encode/mpeg2enc.c

   1 /*
   2  * Copyright (c) 2012 Intel Corporation. All Rights Reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the
   6  * "Software"), to deal in the Software without restriction, including
   7  * without limitation the rights to use, copy, modify, merge, publish,
   8  * distribute, sub license, and/or sell copies of the Software, and to
   9  * permit persons to whom the Software is furnished to do so, subject to
  10  * the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial portions
  14  * of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  19  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  20  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  21  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  22  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24 /*
  25  * Simple MPEG-2 encoder based on libVA.
  26  *
  27  */
  28
  29 #include "sysdeps.h"
  30
  31 #include <getopt.h>
  32 #include <unistd.h>
  33
  34 #include <sys/time.h>
  35 #include <sys/types.h>
  36 #include <fcntl.h>
  37 #include <time.h>
  38 #include <pthread.h>
  39
  40 #include <va/va.h>
  41 #include <va/va_enc_mpeg2.h>
  42
  43 #include "va_display.h"
  44
  45 #define START_CODE_PICUTRE      0x00000100
  46 #define START_CODE_SLICE        0x00000101
  47 #define START_CODE_USER         0x000001B2
  48 #define START_CODE_SEQ          0x000001B3
  49 #define START_CODE_EXT          0x000001B5
  50 #define START_CODE_GOP          0x000001B8
  51
  52 #define CHROMA_FORMAT_RESERVED  0
  53 #define CHROMA_FORMAT_420       1
  54 #define CHROMA_FORMAT_422       2
  55 #define CHROMA_FORMAT_444       3
  56
  57 #define MAX_SLICES              128
  58
  59 #define CHECK_VASTATUS(va_status, func)                                 \
  60     if (va_status != VA_STATUS_SUCCESS) {                               \
  61         fprintf(stderr, "%s:%s (%d) failed, exit\n", __func__, func, __LINE__); \
  62         exit(1);                                                        \
  63     }
  64
  65 #define INTRA_PERIOD            30
  66
  67 static int const picture_type_patter[][2] = {{VAEncPictureTypeIntra, 1},
  68                                              {VAEncPictureTypePredictive, 3}, {VAEncPictureTypePredictive, 3},{VAEncPictureTypePredictive, 3},
  69                                              {VAEncPictureTypePredictive, 3}, {VAEncPictureTypePredictive, 3},{VAEncPictureTypePredictive, 3},
  70                                              {VAEncPictureTypePredictive, 3}, {VAEncPictureTypePredictive, 3},{VAEncPictureTypePredictive, 3},
  71                                              {VAEncPictureTypePredictive, 2}};
  72
  73 struct mpeg2enc_context {
  74     /* args */
  75     int rate_control_mode;
  76     int fps;
  77     int width;
  78     int height;
  79     int frame_size;
  80     int num_pictures;
  81     int qp;
  82     FILE *ifp;
  83     FILE *ofp;
  84     unsigned char *frame_data_buffer;
  85     int intra_period;
  86     int bit_rate; /* in kbps */
  87
  88     /* VA resource */
  89     VADisplay va_dpy;
  90     VAEncSequenceParameterBufferMPEG2 seq_param;
  91     VAEncPictureParameterBufferMPEG2 pic_param;
  92     VAEncSliceParameterBufferMPEG2 slice_param[MAX_SLICES];
  93     VAContextID context_id;
  94     VAConfigID config_id;
  95     VABufferID seq_param_buf_id;                /* Sequence level parameter */
  96     VABufferID pic_param_buf_id;                /* Picture level parameter */
  97     VABufferID slice_param_buf_id[MAX_SLICES];  /* Slice level parameter, multil slices */
  98     VABufferID codedbuf_buf_id;                 /* Output buffer, compressed data */
  99     VABufferID packed_seq_header_param_buf_id;
 100     VABufferID packed_seq_buf_id;
 101     VABufferID packed_pic_header_param_buf_id;
 102     VABufferID packed_pic_buf_id;
 103     int num_slice_groups;
 104     int codedbuf_i_size;
 105     int codedbuf_pb_size;
 106
 107     /* thread */
 108     pthread_t upload_thread_id;
 109     int upload_thread_value;
 110     int current_input_surface;
 111     int current_upload_surface;
 112 };
 113
 114 /*
 115  * mpeg2enc helpers
 116  */
 117 #define BITSTREAM_ALLOCATE_STEPPING     4096
 118
 119 struct __bitstream {
 120     unsigned int *buffer;
 121     int bit_offset;
 122     int max_size_in_dword;
 123 };
 124
 125 typedef struct __bitstream bitstream;
 126
 127 static unsigned int
 128 swap32(unsigned int val)
 129 {
 130     unsigned char *pval = (unsigned char *)&val;
 131
 132     return ((pval[0] << 24)     |
 133             (pval[1] << 16)     |
 134             (pval[2] << 8)      |
 135             (pval[3] << 0));
 136 }
 137
 138 static void
 139 bitstream_start(bitstream *bs)
 140 {
 141     bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
 142     bs->buffer = calloc(bs->max_size_in_dword * sizeof(int), 1);
 143     bs->bit_offset = 0;
 144 }
 145
 146 static void
 147 bitstream_end(bitstream *bs)
 148 {
 149     int pos = (bs->bit_offset >> 5);
 150     int bit_offset = (bs->bit_offset & 0x1f);
 151     int bit_left = 32 - bit_offset;
 152
 153     if (bit_offset) {
 154         bs->buffer[pos] = swap32((bs->buffer[pos] << bit_left));
 155     }
 156 }
 157
 158 static void
 159 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
 160 {
 161     int pos = (bs->bit_offset >> 5);
 162     int bit_offset = (bs->bit_offset & 0x1f);
 163     int bit_left = 32 - bit_offset;
 164
 165     if (!size_in_bits)
 166         return;
 167
 168     if (size_in_bits < 32)
 169         val &= ((1 << size_in_bits) - 1);
 170
 171     bs->bit_offset += size_in_bits;
 172
 173     if (bit_left > size_in_bits) {
 174         bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
 175     } else {
 176         size_in_bits -= bit_left;
 177         bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
 178         bs->buffer[pos] = swap32(bs->buffer[pos]);
 179
 180         if (pos + 1 == bs->max_size_in_dword) {
 181             bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
 182             bs->buffer = realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
 183         }
 184
 185         bs->buffer[pos + 1] = val;
 186     }
 187 }
 188
 189 static void
 190 bitstream_byte_aligning(bitstream *bs, int bit)
 191 {
 192     int bit_offset = (bs->bit_offset & 0x7);
 193     int bit_left = 8 - bit_offset;
 194     int new_val;
 195
 196     if (!bit_offset)
 197         return;
 198
 199     assert(bit == 0 || bit == 1);
 200
 201     if (bit)
 202         new_val = (1 << bit_left) - 1;
 203     else
 204         new_val = 0;
 205
 206     bitstream_put_ui(bs, new_val, bit_left);
 207 }
 208
 209 static struct mpeg2_frame_rate {
 210     int code;
 211     float value;
 212 } frame_rate_tab[] = {
 213     {1, 23.976},
 214     {2, 24.0},
 215     {3, 25.0},
 216     {4, 29.97},
 217     {5, 30},
 218     {6, 50},
 219     {7, 59.94},
 220     {8, 60}
 221 };
 222
 223 static int
 224 find_frame_rate_code(const VAEncSequenceParameterBufferMPEG2 *seq_param)
 225 {
 226     unsigned int delta = -1;
 227     int code = 1, i;
 228     float frame_rate_value = seq_param->frame_rate *
 229         (seq_param->sequence_extension.bits.frame_rate_extension_d + 1) /
 230         (seq_param->sequence_extension.bits.frame_rate_extension_n + 1);
 231
 232     for (i = 0; i < sizeof(frame_rate_tab) / sizeof(frame_rate_tab[0]); i++) {
 233
 234         if (abs(1000 * frame_rate_tab[i].value - 1000 * frame_rate_value) < delta) {
 235             code = frame_rate_tab[i].code;
 236             delta = abs(1000 * frame_rate_tab[i].value - 1000 * frame_rate_value);
 237         }
 238     }
 239
 240     return code;
 241 }
 242
 243 static void
 244 sps_rbsp(const VAEncSequenceParameterBufferMPEG2 *seq_param,
 245          bitstream *bs)
 246 {
 247     int frame_rate_code = find_frame_rate_code(seq_param);
 248
 249     bitstream_put_ui(bs, START_CODE_SEQ, 32);
 250     bitstream_put_ui(bs, seq_param->picture_width, 12);
 251     bitstream_put_ui(bs, seq_param->picture_height, 12);
 252     bitstream_put_ui(bs, seq_param->aspect_ratio_information, 4);
 253     bitstream_put_ui(bs, frame_rate_code, 4); /* frame_rate_code */
 254     bitstream_put_ui(bs, (seq_param->bits_per_second + 399) / 400, 18); /* the low 18 bits of bit_rate */
 255     bitstream_put_ui(bs, 1, 1); /* marker_bit */
 256     bitstream_put_ui(bs, seq_param->vbv_buffer_size, 10);
 257     bitstream_put_ui(bs, 0, 1); /* constraint_parameter_flag, always 0 for MPEG-2 */
 258     bitstream_put_ui(bs, 0, 1); /* load_intra_quantiser_matrix */
 259     bitstream_put_ui(bs, 0, 1); /* load_non_intra_quantiser_matrix */
 260
 261     bitstream_put_ui(bs, START_CODE_EXT, 32);
 262     bitstream_put_ui(bs, 1, 4); /* sequence_extension id */
 263     bitstream_put_ui(bs, seq_param->sequence_extension.bits.profile_and_level_indication, 8);
 264     bitstream_put_ui(bs, seq_param->sequence_extension.bits.progressive_sequence, 1);
 265     bitstream_put_ui(bs, seq_param->sequence_extension.bits.chroma_format, 2);
 266     bitstream_put_ui(bs, seq_param->picture_width >> 12, 2);
 267     bitstream_put_ui(bs, seq_param->picture_height >> 12, 2);
 268     bitstream_put_ui(bs, ((seq_param->bits_per_second + 399) / 400) >> 18, 12); /* bit_rate_extension */
 269     bitstream_put_ui(bs, 1, 1); /* marker_bit */
 270     bitstream_put_ui(bs, seq_param->vbv_buffer_size >> 10, 8);
 271     bitstream_put_ui(bs, seq_param->sequence_extension.bits.low_delay, 1);
 272     bitstream_put_ui(bs, seq_param->sequence_extension.bits.frame_rate_extension_n, 2);
 273     bitstream_put_ui(bs, seq_param->sequence_extension.bits.frame_rate_extension_d, 5);
 274
 275     bitstream_put_ui(bs, START_CODE_GOP, 32);
 276     bitstream_put_ui(bs, seq_param->gop_header.bits.time_code, 25);
 277     bitstream_put_ui(bs, seq_param->gop_header.bits.closed_gop, 1);
 278     bitstream_put_ui(bs, seq_param->gop_header.bits.broken_link, 1);
 279 }
 280
 281 static void
 282 pps_rbsp(const VAEncSequenceParameterBufferMPEG2 *seq_param,
 283          const VAEncPictureParameterBufferMPEG2 *pic_param,
 284          bitstream *bs)
 285 {
 286     int i;
 287     int chroma_420_type;
 288
 289     if (seq_param->sequence_extension.bits.chroma_format == CHROMA_FORMAT_420)
 290         chroma_420_type = pic_param->picture_coding_extension.bits.progressive_frame;
 291     else
 292         chroma_420_type = 0;
 293
 294     bitstream_put_ui(bs, START_CODE_PICUTRE, 32);
 295     bitstream_put_ui(bs, pic_param->temporal_reference, 10);
 296     bitstream_put_ui(bs,
 297                      pic_param->picture_type == VAEncPictureTypeIntra ? 1 :
 298                      pic_param->picture_type == VAEncPictureTypePredictive ? 2 : 3,
 299                      3);
 300     bitstream_put_ui(bs, 0xFFFF, 16); /* vbv_delay, always 0xFFFF */
 301
 302     if (pic_param->picture_type == VAEncPictureTypePredictive) {
 303         bitstream_put_ui(bs, 0, 1); /* full_pel_forward_vector, always 0 for MPEG-2 */
 304         bitstream_put_ui(bs, 7, 3); /* forward_f_code, always 7 for MPEG-2 */
 305     }
 306
 307     if (pic_param->picture_type == VAEncPictureTypeBidirectional) {
 308         bitstream_put_ui(bs, 0, 1); /* full_pel_backward_vector, always 0 for MPEG-2 */
 309         bitstream_put_ui(bs, 7, 3); /* backward_f_code, always 7 for MPEG-2 */
 310     }
 311
 312     bitstream_put_ui(bs, 0, 1); /* extra_bit_picture, 0 */
 313
 314     bitstream_put_ui(bs, START_CODE_EXT, 32);
 315     bitstream_put_ui(bs, 8, 4); /* Picture Coding Extension ID: 8 */
 316     bitstream_put_ui(bs, pic_param->f_code[0][0], 4);
 317     bitstream_put_ui(bs, pic_param->f_code[0][1], 4);
 318     bitstream_put_ui(bs, pic_param->f_code[1][0], 4);
 319     bitstream_put_ui(bs, pic_param->f_code[1][1], 4);
 320
 321     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.intra_dc_precision, 2);
 322     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.picture_structure, 2);
 323     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.top_field_first, 1);
 324     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.frame_pred_frame_dct, 1);
 325     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.concealment_motion_vectors, 1);
 326     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.q_scale_type, 1);
 327     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.intra_vlc_format, 1);
 328     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.alternate_scan, 1);
 329     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.repeat_first_field, 1);
 330     bitstream_put_ui(bs, chroma_420_type, 1);
 331     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.progressive_frame, 1);
 332     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.composite_display_flag, 1);
 333
 334     if (pic_param->user_data_length) {
 335         bitstream_put_ui(bs, START_CODE_USER, 32);
 336
 337         for (i = 0; i < pic_param->user_data_length; i++) {
 338             bitstream_put_ui(bs, pic_param->user_data[i], 8);
 339         }
 340     }
 341 }
 342
 343 static int
 344 build_packed_pic_buffer(const VAEncSequenceParameterBufferMPEG2 *seq_param,
 345                         const VAEncPictureParameterBufferMPEG2 *pic_param,
 346                         unsigned char **header_buffer)
 347 {
 348     bitstream bs;
 349
 350     bitstream_start(&bs);
 351     pps_rbsp(seq_param, pic_param, &bs);
 352     bitstream_end(&bs);
 353
 354     *header_buffer = (unsigned char *)bs.buffer;
 355     return bs.bit_offset;
 356 }
 357
 358 static int
 359 build_packed_seq_buffer(const VAEncSequenceParameterBufferMPEG2 *seq_param,
 360                         unsigned char **header_buffer)
 361 {
 362     bitstream bs;
 363
 364     bitstream_start(&bs);
 365     sps_rbsp(seq_param, &bs);
 366     bitstream_end(&bs);
 367
 368     *header_buffer = (unsigned char *)bs.buffer;
 369     return bs.bit_offset;
 370 }
 371
 372 /*
 373  * mpeg2enc
 374  */
 375 #define SID_INPUT_PICTURE_0                     0
 376 #define SID_INPUT_PICTURE_1                     1
 377 #define SID_REFERENCE_PICTURE_L0                2
 378 #define SID_REFERENCE_PICTURE_L1                3
 379 #define SID_RECON_PICTURE                       4
 380 #define SID_NUMBER                              SID_RECON_PICTURE + 1
 381
 382 static VASurfaceID surface_ids[SID_NUMBER];
 383
 384 /*
 385  * upload thread function
 386  */
 387 static void *
 388 upload_yuv_to_surface(void *data)
 389 {
 390     struct mpeg2enc_context *ctx = data;
 391     VAImage surface_image;
 392     VAStatus va_status;
 393     void *surface_p = NULL;
 394     unsigned char *y_src, *u_src, *v_src;
 395     unsigned char *y_dst, *u_dst, *v_dst;
 396     int y_size = ctx->width * ctx->height;
 397     int u_size = (ctx->width >> 1) * (ctx->height >> 1);
 398     int row, col;
 399     size_t n_items;
 400
 401     do {
 402         n_items = fread(ctx->frame_data_buffer, ctx->frame_size, 1, ctx->ifp);
 403     } while (n_items != 1);
 404
 405     va_status = vaDeriveImage(ctx->va_dpy, surface_ids[ctx->current_upload_surface], &surface_image);
 406     CHECK_VASTATUS(va_status,"vaDeriveImage");
 407
 408     vaMapBuffer(ctx->va_dpy, surface_image.buf, &surface_p);
 409     assert(VA_STATUS_SUCCESS == va_status);
 410
 411     y_src = ctx->frame_data_buffer;
 412     u_src = ctx->frame_data_buffer + y_size; /* UV offset for NV12 */
 413     v_src = ctx->frame_data_buffer + y_size + u_size;
 414
 415     y_dst = surface_p + surface_image.offsets[0];
 416     u_dst = surface_p + surface_image.offsets[1]; /* UV offset for NV12 */
 417     v_dst = surface_p + surface_image.offsets[2];
 418
 419     /* Y plane */
 420     for (row = 0; row < surface_image.height; row++) {
 421         memcpy(y_dst, y_src, surface_image.width);
 422         y_dst += surface_image.pitches[0];
 423         y_src += ctx->width;
 424     }
 425
 426     if (surface_image.format.fourcc == VA_FOURCC_NV12) { /* UV plane */
 427         for (row = 0; row < surface_image.height / 2; row++) {
 428             for (col = 0; col < surface_image.width / 2; col++) {
 429                 u_dst[col * 2] = u_src[col];
 430                 u_dst[col * 2 + 1] = v_src[col];
 431             }
 432
 433             u_dst += surface_image.pitches[1];
 434             u_src += (ctx->width / 2);
 435             v_src += (ctx->width / 2);
 436         }
 437     } else {
 438         for (row = 0; row < surface_image.height / 2; row++) {
 439             for (col = 0; col < surface_image.width / 2; col++) {
 440                 u_dst[col] = u_src[col];
 441                 v_dst[col] = v_src[col];
 442             }
 443
 444             u_dst += surface_image.pitches[1];
 445             v_dst += surface_image.pitches[2];
 446             u_src += (ctx->width / 2);
 447             v_src += (ctx->width / 2);
 448         }
 449     }
 450
 451     vaUnmapBuffer(ctx->va_dpy, surface_image.buf);
 452     vaDestroyImage(ctx->va_dpy, surface_image.image_id);
 453
 454     return NULL;
 455 }
 456
 457 static void
 458 mpeg2enc_exit(struct mpeg2enc_context *ctx, int exit_code)
 459 {
 460     if (ctx->frame_data_buffer) {
 461         free(ctx->frame_data_buffer);
 462         ctx->frame_data_buffer = NULL;
 463     }
 464
 465     if (ctx->ifp) {
 466         fclose(ctx->ifp);
 467         ctx->ifp = NULL;
 468     }
 469
 470     if (ctx->ofp) {
 471         fclose(ctx->ofp);
 472         ctx->ofp = NULL;
 473     }
 474
 475     exit(exit_code);
 476 }
 477
 478 static void
 479 usage(char *program)
 480 {
 481     fprintf(stderr, "Usage: %s --help\n", program);
 482     fprintf(stderr, "\t--help   print this message\n");
 483     fprintf(stderr, "Usage: %s <width> <height> <ifile> <ofile> [options]\n", program);
 484     fprintf(stderr, "\t<width>  specifies the frame width\n");
 485     fprintf(stderr, "\t<height> specifies the frame height\n");
 486     fprintf(stderr, "\t<ifile>  specifies the I420/IYUV YUV file\n");
 487     fprintf(stderr, "\t<ofile>  specifies the encoded MPEG-2 file\n");
 488     fprintf(stderr, "where options include:\n");
 489     fprintf(stderr, "\t--cqp <QP>       const qp mode with specified <QP>\n");
 490     fprintf(stderr, "\t--fps <FPS>      specify the frame rate\n");
 491 }
 492
 493 static void
 494 parse_args(struct mpeg2enc_context *ctx, int argc, char **argv)
 495 {
 496     int c, tmp, i = 0;
 497     int option_index = 0;
 498     long file_size;
 499     static struct option long_options[] = {
 500         {"help",        no_argument,            0,      'h'},
 501         {"cqp",         required_argument,      0,      'c'},
 502         {"fps",         required_argument,      0,      'f'},
 503         { NULL,         0,                      NULL,   0 }
 504     };
 505
 506     if ((argc == 2 && strcmp(argv[1], "--help") == 0) ||
 507         (argc < 5))
 508         goto print_usage;
 509
 510     ctx->width = atoi(argv[1]);
 511     ctx->height = atoi(argv[2]);
 512
 513     if (ctx->width <= 0 || ctx->height <= 0) {
 514         fprintf(stderr, "<width> and <height> must be greater than 0\n");
 515         goto err_exit;
 516     }
 517
 518     ctx->ifp = fopen(argv[3], "rb");
 519
 520     if (ctx->ifp == NULL) {
 521         fprintf(stderr, "Can't open the input file\n");
 522         goto err_exit;
 523     }
 524
 525     fseek(ctx->ifp, 0l, SEEK_END);
 526     file_size = ftell(ctx->ifp);
 527     ctx->frame_size = ctx->width * ctx->height * 3 / 2;
 528
 529     if ((file_size < ctx->frame_size) ||
 530         (file_size % ctx->frame_size)) {
 531         fprintf(stderr, "The input file size %ld isn't a multiple of the frame size %d\n", file_size, ctx->frame_size);
 532         goto err_exit;
 533     }
 534
 535     ctx->num_pictures = file_size / ctx->frame_size;
 536     fseek(ctx->ifp, 0l, SEEK_SET);
 537
 538     ctx->ofp = fopen(argv[4], "wb");
 539
 540     if (ctx->ofp == NULL) {
 541         fprintf(stderr, "Can't create the output file\n");
 542         goto err_exit;
 543     }
 544
 545     opterr = 0;
 546     ctx->fps = 30;
 547     ctx->qp = 28;
 548     ctx->rate_control_mode = VA_RC_CQP;
 549
 550     optind = 5;
 551
 552     while((c = getopt_long(argc, argv,
 553                            "",
 554                            long_options,
 555                            &option_index)) != -1) {
 556         switch(c) {
 557         case 'c':
 558             tmp = atoi(optarg);
 559
 560             /* only support q_scale_type = 0 */
 561             if (tmp > 62 || tmp < 2) {
 562                 fprintf(stderr, "Warning: QP must be in [2, 62]\n");
 563
 564                 if (tmp > 62)
 565                     tmp = 62;
 566
 567                 if (tmp < 2)
 568                     tmp = 2;
 569             }
 570
 571             ctx->qp = tmp & 0xFE;
 572             ctx->rate_control_mode = VA_RC_CQP;
 573
 574             break;
 575
 576         case 'f':
 577             tmp = atoi(optarg);
 578
 579             if (tmp <= 0)
 580                 fprintf(stderr, "Warning: FPS must be greater than 0\n");
 581             else
 582                 ctx->fps = tmp;
 583
 584             ctx->rate_control_mode = VA_RC_CBR;
 585
 586             break;
 587
 588         case '?':
 589             fprintf(stderr, "Error: unkown command options\n");
 590
 591         case 'h':
 592             goto print_usage;
 593         }
 594     }
 595
 596     return;
 597
 598 print_usage:
 599     usage(argv[0]);
 600 err_exit:
 601     mpeg2enc_exit(ctx, 1);
 602 }
 603
 604 /*
 605  * init
 606  */
 607 static void
 608 mpeg2enc_init_sequence_parameter(struct mpeg2enc_context *ctx,
 609                                 VAEncSequenceParameterBufferMPEG2 *seq_param)
 610 {
 611     seq_param->intra_period = ctx->intra_period;
 612     seq_param->ip_period = 0;   /* FIXME: ??? */
 613     seq_param->picture_width = ctx->width;
 614     seq_param->picture_height = ctx->height;
 615
 616     if (ctx->bit_rate > 0)
 617         seq_param->bits_per_second = 1024 * ctx->bit_rate; /* use kbps as input */
 618     else
 619         seq_param->bits_per_second = 0x3FFFF * 400;
 620
 621     seq_param->frame_rate = ctx->fps;
 622     seq_param->aspect_ratio_information = 1;
 623     seq_param->vbv_buffer_size = 0x10000;
 624
 625     seq_param->sequence_extension.bits.profile_and_level_indication = 4 << 4 | 0x8; /* FIXME: Main/Main ??? */
 626     seq_param->sequence_extension.bits.progressive_sequence = 1; /* progressive frame-pictures */
 627     seq_param->sequence_extension.bits.chroma_format = CHROMA_FORMAT_420; /* 4:2:0 */
 628     seq_param->sequence_extension.bits.low_delay = 0; /* FIXME */
 629     seq_param->sequence_extension.bits.frame_rate_extension_n = 0;
 630     seq_param->sequence_extension.bits.frame_rate_extension_d = 0;
 631
 632     seq_param->gop_header.bits.time_code = (1 << 12); /* bit12: marker_bit */
 633     seq_param->gop_header.bits.closed_gop = 0;
 634     seq_param->gop_header.bits.broken_link = 0;
 635 }
 636
 637 static void
 638 mpeg2enc_init_picture_parameter(struct mpeg2enc_context *ctx,
 639                                VAEncPictureParameterBufferMPEG2 *pic_param)
 640 {
 641     pic_param->forward_reference_picture = VA_INVALID_ID;
 642     pic_param->backward_reference_picture = VA_INVALID_ID;
 643     pic_param->reconstructed_picture = VA_INVALID_ID;
 644     pic_param->coded_buf = VA_INVALID_ID;
 645     pic_param->picture_type = VAEncPictureTypeIntra;
 646
 647     pic_param->temporal_reference = 0;
 648     pic_param->f_code[0][0] = 1;
 649     pic_param->f_code[0][1] = 1;
 650     pic_param->f_code[1][0] = 1;
 651     pic_param->f_code[1][1] = 1;
 652
 653     pic_param->picture_coding_extension.bits.intra_dc_precision = 0; /* 8bits */
 654     pic_param->picture_coding_extension.bits.picture_structure = 3; /* frame picture */
 655     pic_param->picture_coding_extension.bits.top_field_first = 1;
 656     pic_param->picture_coding_extension.bits.frame_pred_frame_dct = 1; /* FIXME */
 657     pic_param->picture_coding_extension.bits.concealment_motion_vectors = 0;
 658     pic_param->picture_coding_extension.bits.q_scale_type = 0;
 659     pic_param->picture_coding_extension.bits.intra_vlc_format = 0;
 660     pic_param->picture_coding_extension.bits.alternate_scan = 0;
 661     pic_param->picture_coding_extension.bits.repeat_first_field = 0;
 662     pic_param->picture_coding_extension.bits.progressive_frame = 1;
 663     pic_param->picture_coding_extension.bits.composite_display_flag = 0;
 664
 665     pic_param->user_data_length = 0;
 666 }
 667
 668 static void
 669 mpeg2enc_alloc_va_resources(struct mpeg2enc_context *ctx)
 670 {
 671     VAEntrypoint *entrypoint_list;
 672     VAConfigAttrib attrib_list[2];
 673     VAStatus va_status;
 674     int max_entrypoints, num_entrypoints, entrypoint;
 675     int major_ver, minor_ver;
 676
 677     ctx->va_dpy = va_open_display();
 678     va_status = vaInitialize(ctx->va_dpy,
 679                              &major_ver,
 680                              &minor_ver);
 681     CHECK_VASTATUS(va_status, "vaInitialize");
 682
 683     max_entrypoints = vaMaxNumEntrypoints(ctx->va_dpy);
 684     entrypoint_list = malloc(max_entrypoints * sizeof(VAEntrypoint));
 685     vaQueryConfigEntrypoints(ctx->va_dpy,
 686                              VAProfileMPEG2Simple,
 687                              entrypoint_list,
 688                              &num_entrypoints);
 689
 690     for (entrypoint = 0; entrypoint < num_entrypoints; entrypoint++) {
 691         if (entrypoint_list[entrypoint] == VAEntrypointEncSlice)
 692             break;
 693     }
 694
 695     free(entrypoint_list);
 696
 697     if (entrypoint == num_entrypoints) {
 698         /* not find Slice entry point */
 699         assert(0);
 700     }
 701
 702     /* find out the format for the render target, and rate control mode */
 703     attrib_list[0].type = VAConfigAttribRTFormat;
 704     attrib_list[1].type = VAConfigAttribRateControl;
 705     vaGetConfigAttributes(ctx->va_dpy,
 706                           VAProfileMPEG2Simple,
 707                           VAEntrypointEncSlice,
 708                           &attrib_list[0],
 709                           2);
 710
 711     if ((attrib_list[0].value & VA_RT_FORMAT_YUV420) == 0) {
 712         /* not find desired YUV420 RT format */
 713         assert(0);
 714     }
 715
 716     if ((attrib_list[1].value & ctx->rate_control_mode) == 0) {
 717         /* Can't find matched RC mode */
 718         fprintf(stderr, "RC mode %d isn't found, exit\n", ctx->rate_control_mode);
 719         assert(0);
 720     }
 721
 722     attrib_list[0].value = VA_RT_FORMAT_YUV420; /* set to desired RT format */
 723     attrib_list[1].value = ctx->rate_control_mode; /* set to desired RC mode */
 724
 725     va_status = vaCreateConfig(ctx->va_dpy,
 726                                VAProfileMPEG2Simple,
 727                                VAEntrypointEncSlice,
 728                                attrib_list,
 729                                2,
 730                                &ctx->config_id);
 731     CHECK_VASTATUS(va_status, "vaCreateConfig");
 732
 733     /* Create a context for this decode pipe */
 734     va_status = vaCreateContext(ctx->va_dpy,
 735                                 ctx->config_id,
 736                                 ctx->width,
 737                                 ctx->height,
 738                                 VA_PROGRESSIVE,
 739                                 0,
 740                                 0,
 741                                 &ctx->context_id);
 742     CHECK_VASTATUS(va_status, "vaCreateContext");
 743
 744     va_status = vaCreateSurfaces(ctx->va_dpy,
 745                                  VA_RT_FORMAT_YUV420,
 746                                  ctx->width,
 747                                  ctx->height,
 748                                  surface_ids,
 749                                  SID_NUMBER,
 750                                  NULL,
 751                                  0);
 752     CHECK_VASTATUS(va_status, "vaCreateSurfaces");
 753 }
 754
 755 static void
 756 mpeg2enc_init(struct mpeg2enc_context *ctx)
 757 {
 758     int i;
 759
 760     ctx->frame_data_buffer = (unsigned char *)malloc(ctx->frame_size);
 761     ctx->seq_param_buf_id = VA_INVALID_ID;
 762     ctx->pic_param_buf_id = VA_INVALID_ID;
 763     ctx->packed_seq_header_param_buf_id = VA_INVALID_ID;
 764     ctx->packed_seq_buf_id = VA_INVALID_ID;
 765     ctx->packed_pic_header_param_buf_id = VA_INVALID_ID;
 766     ctx->packed_pic_buf_id = VA_INVALID_ID;
 767     ctx->codedbuf_buf_id = VA_INVALID_ID;
 768     ctx->codedbuf_i_size = ctx->frame_size;
 769     ctx->codedbuf_pb_size = 0;
 770     ctx->intra_period = INTRA_PERIOD;
 771     ctx->bit_rate = -1;
 772
 773     for (i = 0; i < MAX_SLICES; i++) {
 774         ctx->slice_param_buf_id[i] = VA_INVALID_ID;
 775     }
 776
 777     mpeg2enc_init_sequence_parameter(ctx, &ctx->seq_param);
 778     mpeg2enc_init_picture_parameter(ctx, &ctx->pic_param);
 779     mpeg2enc_alloc_va_resources(ctx);
 780
 781     /* thread */
 782     ctx->current_input_surface = SID_INPUT_PICTURE_0;
 783     ctx->current_upload_surface = SID_INPUT_PICTURE_1;
 784     ctx->upload_thread_value = pthread_create(&ctx->upload_thread_id,
 785                                               NULL,
 786                                               upload_yuv_to_surface,
 787                                               ctx);
 788 }
 789
 790 /*
 791  * run
 792  */
 793 static void
 794 mpeg2enc_update_picture_parameter(struct mpeg2enc_context *ctx,
 795                                  VAEncPictureType picture_type,
 796                                  int coded_order,
 797                                  int display_order)
 798 {
 799     VAEncPictureParameterBufferMPEG2 *pic_param;
 800     VAStatus va_status;
 801
 802     // Picture level
 803     pic_param = &ctx->pic_param;
 804     pic_param->picture_type = picture_type;
 805     pic_param->temporal_reference = display_order;
 806     pic_param->reconstructed_picture = surface_ids[SID_RECON_PICTURE];
 807     pic_param->forward_reference_picture = surface_ids[SID_REFERENCE_PICTURE_L0];
 808     pic_param->backward_reference_picture = surface_ids[SID_REFERENCE_PICTURE_L1];
 809     pic_param->coded_buf = ctx->codedbuf_buf_id;
 810
 811     va_status = vaCreateBuffer(ctx->va_dpy,
 812                                ctx->context_id,
 813                                VAEncPictureParameterBufferType,
 814                                sizeof(*pic_param),
 815                                1,
 816                                pic_param,
 817                                &ctx->pic_param_buf_id);
 818     CHECK_VASTATUS(va_status, "vaCreateBuffer");
 819 }
 820
 821 static void
 822 mpeg2enc_update_slice_parameter(struct mpeg2enc_context *ctx, VAEncPictureType picture_type)
 823 {
 824     VAEncSequenceParameterBufferMPEG2 *seq_param;
 825     VAEncPictureParameterBufferMPEG2 *pic_param;
 826     VAEncSliceParameterBufferMPEG2 *slice_param;
 827     VAStatus va_status;
 828     int i, width_in_mbs, height_in_mbs;
 829
 830     pic_param = &ctx->pic_param;
 831     assert(pic_param->picture_coding_extension.bits.q_scale_type == 0);
 832
 833     seq_param = &ctx->seq_param;
 834     width_in_mbs = (seq_param->picture_width + 15) / 16;
 835     height_in_mbs = (seq_param->picture_height + 15) / 16;
 836     ctx->num_slice_groups = 1;
 837
 838     for (i = 0; i < height_in_mbs; i++) {
 839         slice_param = &ctx->slice_param[i];
 840         slice_param->macroblock_address = i * width_in_mbs;
 841         slice_param->num_macroblocks = width_in_mbs;
 842         slice_param->is_intra_slice = (picture_type == VAEncPictureTypeIntra);
 843         slice_param->quantiser_scale_code = ctx->qp / 2;
 844     }
 845
 846     va_status = vaCreateBuffer(ctx->va_dpy,
 847                                ctx->context_id,
 848                                VAEncSliceParameterBufferType,
 849                                sizeof(*slice_param),
 850                                height_in_mbs,
 851                                ctx->slice_param,
 852                                ctx->slice_param_buf_id);
 853     CHECK_VASTATUS(va_status, "vaCreateBuffer");;
 854 }
 855
 856 static int
 857 begin_picture(struct mpeg2enc_context *ctx,
 858               int coded_order,
 859               int display_order,
 860               VAEncPictureType picture_type)
 861 {
 862     VAStatus va_status;
 863     int tmp;
 864
 865     if (ctx->upload_thread_value != 0) {
 866         fprintf(stderr, "FATAL error!!!\n");
 867         exit(1);
 868     }
 869
 870     pthread_join(ctx->upload_thread_id, NULL);
 871
 872     ctx->upload_thread_value = -1;
 873     tmp = ctx->current_input_surface;
 874     ctx->current_input_surface = ctx->current_upload_surface;
 875     ctx->current_upload_surface = tmp;
 876
 877     if (coded_order == 0) {
 878         VAEncPackedHeaderParameterBuffer packed_header_param_buffer;
 879         unsigned int length_in_bits;
 880         unsigned char *packed_seq_buffer = NULL, *packed_pic_buffer = NULL;
 881
 882         assert(picture_type == VAEncPictureTypeIntra);
 883         length_in_bits = build_packed_seq_buffer(&ctx->seq_param, &packed_seq_buffer);
 884         packed_header_param_buffer.type = VAEncPackedHeaderMPEG2_SPS;
 885         packed_header_param_buffer.has_emulation_bytes = 0;
 886         packed_header_param_buffer.bit_length = length_in_bits;
 887         va_status = vaCreateBuffer(ctx->va_dpy,
 888                                    ctx->context_id,
 889                                    VAEncPackedHeaderParameterBufferType,
 890                                    sizeof(packed_header_param_buffer), 1, &packed_header_param_buffer,
 891                                    &ctx->packed_seq_header_param_buf_id);
 892         CHECK_VASTATUS(va_status,"vaCreateBuffer");
 893
 894         va_status = vaCreateBuffer(ctx->va_dpy,
 895                                    ctx->context_id,
 896                                    VAEncPackedHeaderDataBufferType,
 897                                    (length_in_bits + 7) / 8, 1, packed_seq_buffer,
 898                                    &ctx->packed_seq_buf_id);
 899         CHECK_VASTATUS(va_status,"vaCreateBuffer");
 900
 901         length_in_bits = build_packed_pic_buffer(&ctx->seq_param, &ctx->pic_param, &packed_pic_buffer);
 902         packed_header_param_buffer.type = VAEncPackedHeaderMPEG2_PPS;
 903         packed_header_param_buffer.has_emulation_bytes = 0;
 904         packed_header_param_buffer.bit_length = length_in_bits;
 905
 906         va_status = vaCreateBuffer(ctx->va_dpy,
 907                                    ctx->context_id,
 908                                    VAEncPackedHeaderParameterBufferType,
 909                                    sizeof(packed_header_param_buffer), 1, &packed_header_param_buffer,
 910                                    &ctx->packed_pic_header_param_buf_id);
 911         CHECK_VASTATUS(va_status,"vaCreateBuffer");
 912
 913         va_status = vaCreateBuffer(ctx->va_dpy,
 914                                    ctx->context_id,
 915                                    VAEncPackedHeaderDataBufferType,
 916                                    (length_in_bits + 7) / 8, 1, packed_pic_buffer,
 917                                    &ctx->packed_pic_buf_id);
 918         CHECK_VASTATUS(va_status,"vaCreateBuffer");
 919
 920         free(packed_seq_buffer);
 921         free(packed_pic_buffer);
 922     }
 923
 924     /* sequence parameter set */
 925     VAEncSequenceParameterBufferMPEG2 *seq_param = &ctx->seq_param;
 926     va_status = vaCreateBuffer(ctx->va_dpy,
 927                                ctx->context_id,
 928                                VAEncSequenceParameterBufferType,
 929                                sizeof(*seq_param),
 930                                1,
 931                                seq_param,
 932                                &ctx->seq_param_buf_id);
 933     CHECK_VASTATUS(va_status,"vaCreateBuffer");;
 934
 935     /* slice parameter */
 936     mpeg2enc_update_slice_parameter(ctx, picture_type);
 937
 938     return 0;
 939 }
 940
 941 static int
 942 mpeg2enc_render_picture(struct mpeg2enc_context *ctx)
 943 {
 944     VAStatus va_status;
 945     VABufferID va_buffers[16];
 946     unsigned int num_va_buffers = 0;
 947
 948     va_buffers[num_va_buffers++] = ctx->seq_param_buf_id;
 949     va_buffers[num_va_buffers++] = ctx->pic_param_buf_id;
 950
 951     if (ctx->packed_seq_header_param_buf_id != VA_INVALID_ID)
 952         va_buffers[num_va_buffers++] = ctx->packed_seq_header_param_buf_id;
 953
 954     if (ctx->packed_seq_buf_id != VA_INVALID_ID)
 955         va_buffers[num_va_buffers++] = ctx->packed_seq_buf_id;
 956
 957     if (ctx->packed_pic_header_param_buf_id != VA_INVALID_ID)
 958         va_buffers[num_va_buffers++] = ctx->packed_pic_header_param_buf_id;
 959
 960     if (ctx->packed_pic_buf_id != VA_INVALID_ID)
 961         va_buffers[num_va_buffers++] = ctx->packed_pic_buf_id;
 962
 963     va_status = vaBeginPicture(ctx->va_dpy,
 964                                ctx->context_id,
 965                                surface_ids[ctx->current_input_surface]);
 966     CHECK_VASTATUS(va_status,"vaBeginPicture");
 967
 968     va_status = vaRenderPicture(ctx->va_dpy,
 969                                 ctx->context_id,
 970                                 va_buffers,
 971                                 num_va_buffers);
 972     CHECK_VASTATUS(va_status,"vaRenderPicture");
 973
 974     va_status = vaRenderPicture(ctx->va_dpy,
 975                                 ctx->context_id,
 976                                 &ctx->slice_param_buf_id[0],
 977                                 ctx->num_slice_groups);
 978     CHECK_VASTATUS(va_status,"vaRenderPicture");
 979
 980     va_status = vaEndPicture(ctx->va_dpy, ctx->context_id);
 981     CHECK_VASTATUS(va_status,"vaEndPicture");
 982
 983     return 0;
 984 }
 985
 986 static int
 987 mpeg2enc_destroy_buffers(struct mpeg2enc_context *ctx, VABufferID *va_buffers, unsigned int num_va_buffers)
 988 {
 989     VAStatus va_status;
 990     unsigned int i;
 991
 992     for (i = 0; i < num_va_buffers; i++) {
 993         if (va_buffers[i] != VA_INVALID_ID) {
 994             va_status = vaDestroyBuffer(ctx->va_dpy, va_buffers[i]);
 995             CHECK_VASTATUS(va_status,"vaDestroyBuffer");
 996             va_buffers[i] = VA_INVALID_ID;
 997         }
 998     }
 999
1000     return 0;
1001 }
1002
1003 static void
1004 end_picture(struct mpeg2enc_context *ctx, VAEncPictureType picture_type, int next_is_bpic)
1005 {
1006     VABufferID tempID;
1007
1008     /* Prepare for next picture */
1009     tempID = surface_ids[SID_RECON_PICTURE];
1010
1011     if (picture_type != VAEncPictureTypeBidirectional) {
1012         if (next_is_bpic) {
1013             surface_ids[SID_RECON_PICTURE] = surface_ids[SID_REFERENCE_PICTURE_L1];
1014             surface_ids[SID_REFERENCE_PICTURE_L1] = tempID;
1015         } else {
1016             surface_ids[SID_RECON_PICTURE] = surface_ids[SID_REFERENCE_PICTURE_L0];
1017             surface_ids[SID_REFERENCE_PICTURE_L0] = tempID;
1018         }
1019     } else {
1020         if (!next_is_bpic) {
1021             surface_ids[SID_RECON_PICTURE] = surface_ids[SID_REFERENCE_PICTURE_L0];
1022             surface_ids[SID_REFERENCE_PICTURE_L0] = surface_ids[SID_REFERENCE_PICTURE_L1];
1023             surface_ids[SID_REFERENCE_PICTURE_L1] = tempID;
1024         }
1025     }
1026
1027     mpeg2enc_destroy_buffers(ctx, &ctx->seq_param_buf_id, 1);
1028     mpeg2enc_destroy_buffers(ctx, &ctx->pic_param_buf_id, 1);
1029     mpeg2enc_destroy_buffers(ctx, &ctx->packed_seq_header_param_buf_id, 1);
1030     mpeg2enc_destroy_buffers(ctx, &ctx->packed_seq_buf_id, 1);
1031     mpeg2enc_destroy_buffers(ctx, &ctx->packed_pic_header_param_buf_id, 1);
1032     mpeg2enc_destroy_buffers(ctx, &ctx->packed_pic_buf_id, 1);
1033     mpeg2enc_destroy_buffers(ctx, &ctx->slice_param_buf_id[0], ctx->num_slice_groups);
1034     mpeg2enc_destroy_buffers(ctx, &ctx->codedbuf_buf_id, 1);
1035     memset(ctx->slice_param, 0, sizeof(ctx->slice_param));
1036     ctx->num_slice_groups = 0;
1037 }
1038
1039 static int
1040 store_coded_buffer(struct mpeg2enc_context *ctx, VAEncPictureType picture_type)
1041 {
1042     VACodedBufferSegment *coded_buffer_segment;
1043     unsigned char *coded_mem;
1044     int slice_data_length;
1045     VAStatus va_status;
1046     VASurfaceStatus surface_status;
1047     size_t w_items;
1048
1049     va_status = vaSyncSurface(ctx->va_dpy, surface_ids[ctx->current_input_surface]);
1050     CHECK_VASTATUS(va_status,"vaSyncSurface");
1051
1052     surface_status = 0;
1053     va_status = vaQuerySurfaceStatus(ctx->va_dpy, surface_ids[ctx->current_input_surface], &surface_status);
1054     CHECK_VASTATUS(va_status,"vaQuerySurfaceStatus");
1055
1056     va_status = vaMapBuffer(ctx->va_dpy, ctx->codedbuf_buf_id, (void **)(&coded_buffer_segment));
1057     CHECK_VASTATUS(va_status,"vaMapBuffer");
1058     coded_mem = coded_buffer_segment->buf;
1059
1060     if (coded_buffer_segment->status & VA_CODED_BUF_STATUS_SLICE_OVERFLOW_MASK) {
1061         if (picture_type == VAEncPictureTypeIntra)
1062             ctx->codedbuf_i_size *= 2;
1063         else
1064             ctx->codedbuf_pb_size *= 2;
1065
1066         vaUnmapBuffer(ctx->va_dpy, ctx->codedbuf_buf_id);
1067         return -1;
1068     }
1069
1070     slice_data_length = coded_buffer_segment->size;
1071
1072     do {
1073         w_items = fwrite(coded_mem, slice_data_length, 1, ctx->ofp);
1074     } while (w_items != 1);
1075
1076     if (picture_type == VAEncPictureTypeIntra) {
1077         if (ctx->codedbuf_i_size > slice_data_length * 3 / 2) {
1078             ctx->codedbuf_i_size = slice_data_length * 3 / 2;
1079         }
1080
1081         if (ctx->codedbuf_pb_size < slice_data_length) {
1082             ctx->codedbuf_pb_size = slice_data_length;
1083         }
1084     } else {
1085         if (ctx->codedbuf_pb_size > slice_data_length * 3 / 2) {
1086             ctx->codedbuf_pb_size = slice_data_length * 3 / 2;
1087         }
1088     }
1089
1090     vaUnmapBuffer(ctx->va_dpy, ctx->codedbuf_buf_id);
1091
1092     return 0;
1093 }
1094
1095 static void
1096 encode_picture(struct mpeg2enc_context *ctx,
1097                int coded_order,
1098                int display_order,
1099                VAEncPictureType picture_type,
1100                int next_is_bpic,
1101                int next_display_order)
1102 {
1103     VAStatus va_status;
1104     int ret = 0, codedbuf_size;
1105
1106     begin_picture(ctx, coded_order, display_order, picture_type);
1107
1108     if (1) {
1109         /* upload YUV data to VA surface for next frame */
1110         if (next_display_order >= ctx->num_pictures)
1111             next_display_order = ctx->num_pictures - 1;
1112
1113         fseek(ctx->ifp, ctx->frame_size * next_display_order, SEEK_SET);
1114         ctx->upload_thread_value = pthread_create(&ctx->upload_thread_id,
1115                                                   NULL,
1116                                                   upload_yuv_to_surface,
1117                                                   ctx);
1118     }
1119
1120     do {
1121         mpeg2enc_destroy_buffers(ctx, &ctx->codedbuf_buf_id, 1);
1122         mpeg2enc_destroy_buffers(ctx, &ctx->pic_param_buf_id, 1);
1123
1124
1125         if (VAEncPictureTypeIntra == picture_type) {
1126             codedbuf_size = ctx->codedbuf_i_size;
1127         } else {
1128             codedbuf_size = ctx->codedbuf_pb_size;
1129         }
1130
1131         /* coded buffer */
1132         va_status = vaCreateBuffer(ctx->va_dpy,
1133                                    ctx->context_id,
1134                                    VAEncCodedBufferType,
1135                                    codedbuf_size, 1, NULL,
1136                                    &ctx->codedbuf_buf_id);
1137         CHECK_VASTATUS(va_status,"vaCreateBuffer");
1138
1139         /* picture parameter set */
1140         mpeg2enc_update_picture_parameter(ctx, picture_type, coded_order, display_order);
1141
1142         mpeg2enc_render_picture(ctx);
1143
1144         ret = store_coded_buffer(ctx, picture_type);
1145     } while (ret);
1146
1147     end_picture(ctx, picture_type, next_is_bpic);
1148 }
1149
1150 static void
1151 encode_pb_pictures(struct mpeg2enc_context *ctx,
1152                    int coded_order,
1153                    int f,
1154                    int nbframes,
1155                    int next_f)
1156 {
1157     int i;
1158
1159     encode_picture(ctx,
1160                    coded_order,
1161                    f + nbframes,
1162                    VAEncPictureTypePredictive,
1163                    1,
1164                    f);
1165
1166     for( i = 0; i < nbframes - 1; i++) {
1167         encode_picture(ctx,
1168                        coded_order + 1,
1169                        f + i,
1170                        VAEncPictureTypeBidirectional,
1171                        1,
1172                        f + i + 1);
1173     }
1174
1175     encode_picture(ctx,
1176                    coded_order + 1,
1177                    f + nbframes - 1,
1178                    VAEncPictureTypeBidirectional,
1179                    0,
1180                    next_f);
1181 }
1182
1183 static void
1184 mpeg2enc_run(struct mpeg2enc_context *ctx)
1185 {
1186     int display_order = 0, coded_order = 0;
1187     int i_frame_only = 1, i_p_frame_only = 1;
1188
1189     for (display_order = 0; display_order < ctx->num_pictures;) {
1190         if (i_frame_only) {
1191             encode_picture(ctx,
1192                            coded_order,
1193                            display_order,
1194                            VAEncPictureTypeIntra,
1195                            0,
1196                            display_order + 1);
1197             display_order++;
1198             coded_order++;
1199         } else if (i_p_frame_only) {
1200             if ((display_order % ctx->intra_period) == 0) {
1201                 encode_picture(ctx,
1202                                coded_order,
1203                                display_order,
1204                                VAEncPictureTypeIntra,
1205                                0,
1206                                display_order + 1);
1207                 display_order++;
1208                 coded_order++;
1209             } else {
1210                 encode_picture(ctx,
1211                                coded_order,
1212                                display_order,
1213                                VAEncPictureTypePredictive,
1214                                0,
1215                                display_order + 1);
1216                 display_order++;
1217                 coded_order++;
1218             }
1219         } else { // follow the i,p,b pattern
1220             static int fcurrent = 0;
1221             int fnext;
1222
1223             fcurrent = fcurrent % (sizeof(picture_type_patter)/sizeof(int[2]));
1224             fnext = (fcurrent+1) % (sizeof(picture_type_patter)/sizeof(int[2]));
1225
1226             if ( picture_type_patter[fcurrent][0] == VAEncPictureTypeIntra ) {
1227                 encode_picture(ctx,
1228                                coded_order,
1229                                display_order,
1230                                VAEncPictureTypeIntra,
1231                                0,
1232                                display_order + picture_type_patter[fnext][1]);
1233                 display_order++;
1234                 coded_order++;
1235             } else {
1236                 encode_pb_pictures(ctx,
1237                                    coded_order,
1238                                    display_order,
1239                                    picture_type_patter[fcurrent][1] - 1,
1240                                    display_order + picture_type_patter[fcurrent][1] + picture_type_patter[fnext][1] - 1);
1241                 display_order += picture_type_patter[fcurrent][1];
1242                 coded_order++;
1243             }
1244
1245             fcurrent++;
1246         }
1247
1248         fprintf(stderr, "\r %d/%d ...", display_order + 1, ctx->num_pictures);
1249         fflush(stdout);
1250     }
1251 }
1252
1253 /*
1254  * end
1255  */
1256 static void
1257 mpeg2enc_release_va_resources(struct mpeg2enc_context *ctx)
1258 {
1259     vaDestroySurfaces(ctx->va_dpy, surface_ids, SID_NUMBER);
1260     vaDestroyContext(ctx->va_dpy, ctx->context_id);
1261     vaDestroyConfig(ctx->va_dpy, ctx->config_id);
1262     vaTerminate(ctx->va_dpy);
1263     va_close_display(ctx->va_dpy);
1264 }
1265
1266 static void
1267 mpeg2enc_end(struct mpeg2enc_context *ctx)
1268 {
1269     pthread_join(ctx->upload_thread_id, NULL);
1270     mpeg2enc_release_va_resources(ctx);
1271 }
1272
1273 int
1274 main(int argc, char *argv[])
1275 {
1276     struct mpeg2enc_context ctx;
1277     struct timeval tpstart, tpend;
1278     float timeuse;
1279
1280     gettimeofday(&tpstart, NULL);
1281
1282     memset(&ctx, 0, sizeof(ctx));
1283     parse_args(&ctx, argc, argv);
1284     mpeg2enc_init(&ctx);
1285     mpeg2enc_run(&ctx);
1286     mpeg2enc_end(&ctx);
1287
1288     gettimeofday(&tpend, NULL);
1289     timeuse = 1000000 * (tpend.tv_sec - tpstart.tv_sec) + tpend.tv_usec - tpstart.tv_usec;
1290     timeuse /= 1000000;
1291     fprintf(stderr, "\ndone!\n");
1292     fprintf(stderr, "encode %d frames in %f secondes, FPS is %.1f\n", ctx.num_pictures, timeuse, ctx.num_pictures / timeuse);
1293
1294     mpeg2enc_exit(&ctx, 0);
1295
1296     return 0;
1297 }