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 static int const picture_type_patter[][2] = {{VAEncPictureTypeIntra, 1},
  66                                              {VAEncPictureTypePredictive, 3}, {VAEncPictureTypePredictive, 3},{VAEncPictureTypePredictive, 3},
  67                                              {VAEncPictureTypePredictive, 3}, {VAEncPictureTypePredictive, 3},{VAEncPictureTypePredictive, 3},
  68                                              {VAEncPictureTypePredictive, 3}, {VAEncPictureTypePredictive, 3},{VAEncPictureTypePredictive, 3},
  69                                              {VAEncPictureTypePredictive, 2}};
  70
  71 struct mpeg2enc_context {
  72     /* args */
  73     int rate_control_mode;
  74     int fps;
  75     int mode; /* 0:I, 1:I/P, 2:I/P/B */
  76     int width;
  77     int height;
  78     int frame_size;
  79     int num_pictures;
  80     int qp;
  81     FILE *ifp;
  82     FILE *ofp;
  83     unsigned char *frame_data_buffer;
  84     int intra_period;
  85     int bit_rate; /* in kbps */
  86
  87     /* VA resource */
  88     VADisplay va_dpy;
  89     VAEncSequenceParameterBufferMPEG2 seq_param;
  90     VAEncPictureParameterBufferMPEG2 pic_param;
  91     VAEncSliceParameterBufferMPEG2 slice_param[MAX_SLICES];
  92     VAContextID context_id;
  93     VAConfigID config_id;
  94     VABufferID seq_param_buf_id;                /* Sequence level parameter */
  95     VABufferID pic_param_buf_id;                /* Picture level parameter */
  96     VABufferID slice_param_buf_id[MAX_SLICES];  /* Slice level parameter, multil slices */
  97     VABufferID codedbuf_buf_id;                 /* Output buffer, compressed data */
  98     VABufferID packed_seq_header_param_buf_id;
  99     VABufferID packed_seq_buf_id;
 100     VABufferID packed_pic_header_param_buf_id;
 101     VABufferID packed_pic_buf_id;
 102     int num_slice_groups;
 103     int codedbuf_i_size;
 104     int codedbuf_pb_size;
 105
 106     /* thread */
 107     pthread_t upload_thread_id;
 108     int upload_thread_value;
 109     int current_input_surface;
 110     int current_upload_surface;
 111 };
 112
 113 /*
 114  * mpeg2enc helpers
 115  */
 116 #define BITSTREAM_ALLOCATE_STEPPING     4096
 117
 118 struct __bitstream {
 119     unsigned int *buffer;
 120     int bit_offset;
 121     int max_size_in_dword;
 122 };
 123
 124 typedef struct __bitstream bitstream;
 125
 126 static unsigned int
 127 swap32(unsigned int val)
 128 {
 129     unsigned char *pval = (unsigned char *)&val;
 130
 131     return ((pval[0] << 24)     |
 132             (pval[1] << 16)     |
 133             (pval[2] << 8)      |
 134             (pval[3] << 0));
 135 }
 136
 137 static void
 138 bitstream_start(bitstream *bs)
 139 {
 140     bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
 141     bs->buffer = calloc(bs->max_size_in_dword * sizeof(int), 1);
 142     bs->bit_offset = 0;
 143 }
 144
 145 static void
 146 bitstream_end(bitstream *bs)
 147 {
 148     int pos = (bs->bit_offset >> 5);
 149     int bit_offset = (bs->bit_offset & 0x1f);
 150     int bit_left = 32 - bit_offset;
 151
 152     if (bit_offset) {
 153         bs->buffer[pos] = swap32((bs->buffer[pos] << bit_left));
 154     }
 155 }
 156
 157 static void
 158 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
 159 {
 160     int pos = (bs->bit_offset >> 5);
 161     int bit_offset = (bs->bit_offset & 0x1f);
 162     int bit_left = 32 - bit_offset;
 163
 164     if (!size_in_bits)
 165         return;
 166
 167     if (size_in_bits < 32)
 168         val &= ((1 << size_in_bits) - 1);
 169
 170     bs->bit_offset += size_in_bits;
 171
 172     if (bit_left > size_in_bits) {
 173         bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
 174     } else {
 175         size_in_bits -= bit_left;
 176         bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
 177         bs->buffer[pos] = swap32(bs->buffer[pos]);
 178
 179         if (pos + 1 == bs->max_size_in_dword) {
 180             bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
 181             bs->buffer = realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
 182         }
 183
 184         bs->buffer[pos + 1] = val;
 185     }
 186 }
 187
 188 static void
 189 bitstream_byte_aligning(bitstream *bs, int bit)
 190 {
 191     int bit_offset = (bs->bit_offset & 0x7);
 192     int bit_left = 8 - bit_offset;
 193     int new_val;
 194
 195     if (!bit_offset)
 196         return;
 197
 198     assert(bit == 0 || bit == 1);
 199
 200     if (bit)
 201         new_val = (1 << bit_left) - 1;
 202     else
 203         new_val = 0;
 204
 205     bitstream_put_ui(bs, new_val, bit_left);
 206 }
 207
 208 static struct mpeg2_frame_rate {
 209     int code;
 210     float value;
 211 } frame_rate_tab[] = {
 212     {1, 23.976},
 213     {2, 24.0},
 214     {3, 25.0},
 215     {4, 29.97},
 216     {5, 30},
 217     {6, 50},
 218     {7, 59.94},
 219     {8, 60}
 220 };
 221
 222 static int
 223 find_frame_rate_code(const VAEncSequenceParameterBufferMPEG2 *seq_param)
 224 {
 225     unsigned int delta = -1;
 226     int code = 1, i;
 227     float frame_rate_value = seq_param->frame_rate *
 228         (seq_param->sequence_extension.bits.frame_rate_extension_d + 1) /
 229         (seq_param->sequence_extension.bits.frame_rate_extension_n + 1);
 230
 231     for (i = 0; i < sizeof(frame_rate_tab) / sizeof(frame_rate_tab[0]); i++) {
 232
 233         if (abs(1000 * frame_rate_tab[i].value - 1000 * frame_rate_value) < delta) {
 234             code = frame_rate_tab[i].code;
 235             delta = abs(1000 * frame_rate_tab[i].value - 1000 * frame_rate_value);
 236         }
 237     }
 238
 239     return code;
 240 }
 241
 242 static void
 243 sps_rbsp(const VAEncSequenceParameterBufferMPEG2 *seq_param,
 244          bitstream *bs)
 245 {
 246     int frame_rate_code = find_frame_rate_code(seq_param);
 247
 248     bitstream_put_ui(bs, START_CODE_SEQ, 32);
 249     bitstream_put_ui(bs, seq_param->picture_width, 12);
 250     bitstream_put_ui(bs, seq_param->picture_height, 12);
 251     bitstream_put_ui(bs, seq_param->aspect_ratio_information, 4);
 252     bitstream_put_ui(bs, frame_rate_code, 4); /* frame_rate_code */
 253     bitstream_put_ui(bs, (seq_param->bits_per_second + 399) / 400, 18); /* the low 18 bits of bit_rate */
 254     bitstream_put_ui(bs, 1, 1); /* marker_bit */
 255     bitstream_put_ui(bs, seq_param->vbv_buffer_size, 10);
 256     bitstream_put_ui(bs, 0, 1); /* constraint_parameter_flag, always 0 for MPEG-2 */
 257     bitstream_put_ui(bs, 0, 1); /* load_intra_quantiser_matrix */
 258     bitstream_put_ui(bs, 0, 1); /* load_non_intra_quantiser_matrix */
 259
 260     bitstream_byte_aligning(bs, 0);
 261
 262     bitstream_put_ui(bs, START_CODE_EXT, 32);
 263     bitstream_put_ui(bs, 1, 4); /* sequence_extension id */
 264     bitstream_put_ui(bs, seq_param->sequence_extension.bits.profile_and_level_indication, 8);
 265     bitstream_put_ui(bs, seq_param->sequence_extension.bits.progressive_sequence, 1);
 266     bitstream_put_ui(bs, seq_param->sequence_extension.bits.chroma_format, 2);
 267     bitstream_put_ui(bs, seq_param->picture_width >> 12, 2);
 268     bitstream_put_ui(bs, seq_param->picture_height >> 12, 2);
 269     bitstream_put_ui(bs, ((seq_param->bits_per_second + 399) / 400) >> 18, 12); /* bit_rate_extension */
 270     bitstream_put_ui(bs, 1, 1); /* marker_bit */
 271     bitstream_put_ui(bs, seq_param->vbv_buffer_size >> 10, 8);
 272     bitstream_put_ui(bs, seq_param->sequence_extension.bits.low_delay, 1);
 273     bitstream_put_ui(bs, seq_param->sequence_extension.bits.frame_rate_extension_n, 2);
 274     bitstream_put_ui(bs, seq_param->sequence_extension.bits.frame_rate_extension_d, 5);
 275
 276     bitstream_byte_aligning(bs, 0);
 277
 278     bitstream_put_ui(bs, START_CODE_GOP, 32);
 279     bitstream_put_ui(bs, seq_param->gop_header.bits.time_code, 25);
 280     bitstream_put_ui(bs, seq_param->gop_header.bits.closed_gop, 1);
 281     bitstream_put_ui(bs, seq_param->gop_header.bits.broken_link, 1);
 282
 283     bitstream_byte_aligning(bs, 0);
 284 }
 285
 286 static void
 287 pps_rbsp(const VAEncSequenceParameterBufferMPEG2 *seq_param,
 288          const VAEncPictureParameterBufferMPEG2 *pic_param,
 289          bitstream *bs)
 290 {
 291     int i;
 292     int chroma_420_type;
 293
 294     if (seq_param->sequence_extension.bits.chroma_format == CHROMA_FORMAT_420)
 295         chroma_420_type = pic_param->picture_coding_extension.bits.progressive_frame;
 296     else
 297         chroma_420_type = 0;
 298
 299     bitstream_put_ui(bs, START_CODE_PICUTRE, 32);
 300     bitstream_put_ui(bs, pic_param->temporal_reference, 10);
 301     bitstream_put_ui(bs,
 302                      pic_param->picture_type == VAEncPictureTypeIntra ? 1 :
 303                      pic_param->picture_type == VAEncPictureTypePredictive ? 2 : 3,
 304                      3);
 305     bitstream_put_ui(bs, 0xFFFF, 16); /* vbv_delay, always 0xFFFF */
 306
 307     if (pic_param->picture_type == VAEncPictureTypePredictive) {
 308         bitstream_put_ui(bs, 0, 1); /* full_pel_forward_vector, always 0 for MPEG-2 */
 309         bitstream_put_ui(bs, 7, 3); /* forward_f_code, always 7 for MPEG-2 */
 310     }
 311
 312     if (pic_param->picture_type == VAEncPictureTypeBidirectional) {
 313         bitstream_put_ui(bs, 0, 1); /* full_pel_backward_vector, always 0 for MPEG-2 */
 314         bitstream_put_ui(bs, 7, 3); /* backward_f_code, always 7 for MPEG-2 */
 315     }
 316
 317     bitstream_put_ui(bs, 0, 1); /* extra_bit_picture, 0 */
 318
 319     bitstream_byte_aligning(bs, 0);
 320
 321     bitstream_put_ui(bs, START_CODE_EXT, 32);
 322     bitstream_put_ui(bs, 8, 4); /* Picture Coding Extension ID: 8 */
 323     bitstream_put_ui(bs, pic_param->f_code[0][0], 4);
 324     bitstream_put_ui(bs, pic_param->f_code[0][1], 4);
 325     bitstream_put_ui(bs, pic_param->f_code[1][0], 4);
 326     bitstream_put_ui(bs, pic_param->f_code[1][1], 4);
 327
 328     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.intra_dc_precision, 2);
 329     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.picture_structure, 2);
 330     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.top_field_first, 1);
 331     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.frame_pred_frame_dct, 1);
 332     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.concealment_motion_vectors, 1);
 333     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.q_scale_type, 1);
 334     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.intra_vlc_format, 1);
 335     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.alternate_scan, 1);
 336     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.repeat_first_field, 1);
 337     bitstream_put_ui(bs, chroma_420_type, 1);
 338     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.progressive_frame, 1);
 339     bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.composite_display_flag, 1);
 340
 341     bitstream_byte_aligning(bs, 0);
 342
 343     if (pic_param->user_data_length) {
 344         bitstream_put_ui(bs, START_CODE_USER, 32);
 345
 346         for (i = 0; i < pic_param->user_data_length; i++) {
 347             bitstream_put_ui(bs, pic_param->user_data[i], 8);
 348         }
 349
 350         bitstream_byte_aligning(bs, 0);
 351     }
 352 }
 353
 354 static int
 355 build_packed_pic_buffer(const VAEncSequenceParameterBufferMPEG2 *seq_param,
 356                         const VAEncPictureParameterBufferMPEG2 *pic_param,
 357                         unsigned char **header_buffer)
 358 {
 359     bitstream bs;
 360
 361     bitstream_start(&bs);
 362     pps_rbsp(seq_param, pic_param, &bs);
 363     bitstream_end(&bs);
 364
 365     *header_buffer = (unsigned char *)bs.buffer;
 366     return bs.bit_offset;
 367 }
 368
 369 static int
 370 build_packed_seq_buffer(const VAEncSequenceParameterBufferMPEG2 *seq_param,
 371                         unsigned char **header_buffer)
 372 {
 373     bitstream bs;
 374
 375     bitstream_start(&bs);
 376     sps_rbsp(seq_param, &bs);
 377     bitstream_end(&bs);
 378
 379     *header_buffer = (unsigned char *)bs.buffer;
 380     return bs.bit_offset;
 381 }
 382
 383 /*
 384  * mpeg2enc
 385  */
 386 #define SID_INPUT_PICTURE_0                     0
 387 #define SID_INPUT_PICTURE_1                     1
 388 #define SID_REFERENCE_PICTURE_L0                2
 389 #define SID_REFERENCE_PICTURE_L1                3
 390 #define SID_RECON_PICTURE                       4
 391 #define SID_NUMBER                              SID_RECON_PICTURE + 1
 392
 393 static VASurfaceID surface_ids[SID_NUMBER];
 394
 395 /*
 396  * upload thread function
 397  */
 398 static void *
 399 upload_yuv_to_surface(void *data)
 400 {
 401     struct mpeg2enc_context *ctx = data;
 402     VAImage surface_image;
 403     VAStatus va_status;
 404     void *surface_p = NULL;
 405     unsigned char *y_src, *u_src, *v_src;
 406     unsigned char *y_dst, *u_dst, *v_dst;
 407     int y_size = ctx->width * ctx->height;
 408     int u_size = (ctx->width >> 1) * (ctx->height >> 1);
 409     int row, col;
 410     size_t n_items;
 411
 412     do {
 413         n_items = fread(ctx->frame_data_buffer, ctx->frame_size, 1, ctx->ifp);
 414     } while (n_items != 1);
 415
 416     va_status = vaDeriveImage(ctx->va_dpy, surface_ids[ctx->current_upload_surface], &surface_image);
 417     CHECK_VASTATUS(va_status,"vaDeriveImage");
 418
 419     vaMapBuffer(ctx->va_dpy, surface_image.buf, &surface_p);
 420     assert(VA_STATUS_SUCCESS == va_status);
 421
 422     y_src = ctx->frame_data_buffer;
 423     u_src = ctx->frame_data_buffer + y_size; /* UV offset for NV12 */
 424     v_src = ctx->frame_data_buffer + y_size + u_size;
 425
 426     y_dst = surface_p + surface_image.offsets[0];
 427     u_dst = surface_p + surface_image.offsets[1]; /* UV offset for NV12 */
 428     v_dst = surface_p + surface_image.offsets[2];
 429
 430     /* Y plane */
 431     for (row = 0; row < surface_image.height; row++) {
 432         memcpy(y_dst, y_src, surface_image.width);
 433         y_dst += surface_image.pitches[0];
 434         y_src += ctx->width;
 435     }
 436
 437     if (surface_image.format.fourcc == VA_FOURCC_NV12) { /* UV plane */
 438         for (row = 0; row < surface_image.height / 2; row++) {
 439             for (col = 0; col < surface_image.width / 2; col++) {
 440                 u_dst[col * 2] = u_src[col];
 441                 u_dst[col * 2 + 1] = v_src[col];
 442             }
 443
 444             u_dst += surface_image.pitches[1];
 445             u_src += (ctx->width / 2);
 446             v_src += (ctx->width / 2);
 447         }
 448     } else {
 449         for (row = 0; row < surface_image.height / 2; row++) {
 450             for (col = 0; col < surface_image.width / 2; col++) {
 451                 u_dst[col] = u_src[col];
 452                 v_dst[col] = v_src[col];
 453             }
 454
 455             u_dst += surface_image.pitches[1];
 456             v_dst += surface_image.pitches[2];
 457             u_src += (ctx->width / 2);
 458             v_src += (ctx->width / 2);
 459         }
 460     }
 461
 462     vaUnmapBuffer(ctx->va_dpy, surface_image.buf);
 463     vaDestroyImage(ctx->va_dpy, surface_image.image_id);
 464
 465     return NULL;
 466 }
 467
 468 static void
 469 mpeg2enc_exit(struct mpeg2enc_context *ctx, int exit_code)
 470 {
 471     if (ctx->frame_data_buffer) {
 472         free(ctx->frame_data_buffer);
 473         ctx->frame_data_buffer = NULL;
 474     }
 475
 476     if (ctx->ifp) {
 477         fclose(ctx->ifp);
 478         ctx->ifp = NULL;
 479     }
 480
 481     if (ctx->ofp) {
 482         fclose(ctx->ofp);
 483         ctx->ofp = NULL;
 484     }
 485
 486     exit(exit_code);
 487 }
 488
 489 static void
 490 usage(char *program)
 491 {
 492     fprintf(stderr, "Usage: %s --help\n", program);
 493     fprintf(stderr, "\t--help   print this message\n");
 494     fprintf(stderr, "Usage: %s <width> <height> <ifile> <ofile> [options]\n", program);
 495     fprintf(stderr, "\t<width>  specifies the frame width\n");
 496     fprintf(stderr, "\t<height> specifies the frame height\n");
 497     fprintf(stderr, "\t<ifile>  specifies the I420/IYUV YUV file\n");
 498     fprintf(stderr, "\t<ofile>  specifies the encoded MPEG-2 file\n");
 499     fprintf(stderr, "where options include:\n");
 500     fprintf(stderr, "\t--cqp <QP>       const qp mode with specified <QP>\n");
 501     fprintf(stderr, "\t--fps <FPS>      specify the frame rate\n");
 502     fprintf(stderr, "\t--mode <MODE>    specify the mode 0 (I), 1 (I/P) and 2 (I/P/B)\n");
 503 }
 504
 505 static void
 506 parse_args(struct mpeg2enc_context *ctx, int argc, char **argv)
 507 {
 508     int c, tmp, i = 0;
 509     int option_index = 0;
 510     long file_size;
 511     static struct option long_options[] = {
 512         {"help",        no_argument,            0,      'h'},
 513         {"cqp",         required_argument,      0,      'c'},
 514         {"fps",         required_argument,      0,      'f'},
 515         {"mode",        required_argument,      0,      'm'},
 516         { NULL,         0,                      NULL,   0 }
 517     };
 518
 519     if ((argc == 2 && strcmp(argv[1], "--help") == 0) ||
 520         (argc < 5))
 521         goto print_usage;
 522
 523     ctx->width = atoi(argv[1]);
 524     ctx->height = atoi(argv[2]);
 525
 526     if (ctx->width <= 0 || ctx->height <= 0) {
 527         fprintf(stderr, "<width> and <height> must be greater than 0\n");
 528         goto err_exit;
 529     }
 530
 531     ctx->ifp = fopen(argv[3], "rb");
 532
 533     if (ctx->ifp == NULL) {
 534         fprintf(stderr, "Can't open the input file\n");
 535         goto err_exit;
 536     }
 537
 538     fseek(ctx->ifp, 0l, SEEK_END);
 539     file_size = ftell(ctx->ifp);
 540     ctx->frame_size = ctx->width * ctx->height * 3 / 2;
 541
 542     if ((file_size < ctx->frame_size) ||
 543         (file_size % ctx->frame_size)) {
 544         fprintf(stderr, "The input file size %ld isn't a multiple of the frame size %d\n", file_size, ctx->frame_size);
 545         goto err_exit;
 546     }
 547
 548     ctx->num_pictures = file_size / ctx->frame_size;
 549     fseek(ctx->ifp, 0l, SEEK_SET);
 550
 551     ctx->ofp = fopen(argv[4], "wb");
 552
 553     if (ctx->ofp == NULL) {
 554         fprintf(stderr, "Can't create the output file\n");
 555         goto err_exit;
 556     }
 557
 558     opterr = 0;
 559     ctx->fps = 30;
 560     ctx->qp = 28;
 561     ctx->rate_control_mode = VA_RC_CQP;
 562     ctx->mode = 1;
 563
 564     optind = 5;
 565
 566     while((c = getopt_long(argc, argv,
 567                            "",
 568                            long_options,
 569                            &option_index)) != -1) {
 570         switch(c) {
 571         case 'c':
 572             tmp = atoi(optarg);
 573
 574             /* only support q_scale_type = 0 */
 575             if (tmp > 62 || tmp < 2) {
 576                 fprintf(stderr, "Warning: QP must be in [2, 62]\n");
 577
 578                 if (tmp > 62)
 579                     tmp = 62;
 580
 581                 if (tmp < 2)
 582                     tmp = 2;
 583             }
 584
 585             ctx->qp = tmp & 0xFE;
 586             ctx->rate_control_mode = VA_RC_CQP;
 587
 588             break;
 589
 590         case 'f':
 591             tmp = atoi(optarg);
 592
 593             if (tmp <= 0)
 594                 fprintf(stderr, "Warning: FPS must be greater than 0\n");
 595             else
 596                 ctx->fps = tmp;
 597
 598             ctx->rate_control_mode = VA_RC_CBR;
 599
 600             break;
 601
 602         case 'm':
 603             tmp = atoi(optarg);
 604
 605             if (tmp < 0 || tmp > 2)
 606                 fprintf(stderr, "Waning: MODE must be 0, 1, or 2\n");
 607             else
 608                 ctx->mode = tmp;
 609
 610             break;
 611
 612         case '?':
 613             fprintf(stderr, "Error: unkown command options\n");
 614
 615         case 'h':
 616             goto print_usage;
 617         }
 618     }
 619
 620     return;
 621
 622 print_usage:
 623     usage(argv[0]);
 624 err_exit:
 625     mpeg2enc_exit(ctx, 1);
 626 }
 627
 628 /*
 629  * init
 630  */
 631 static void
 632 mpeg2enc_init_sequence_parameter(struct mpeg2enc_context *ctx,
 633                                 VAEncSequenceParameterBufferMPEG2 *seq_param)
 634 {
 635     seq_param->intra_period = ctx->intra_period;
 636     seq_param->ip_period = 0;   /* FIXME: ??? */
 637     seq_param->picture_width = ctx->width;
 638     seq_param->picture_height = ctx->height;
 639
 640     if (ctx->bit_rate > 0)
 641         seq_param->bits_per_second = 1024 * ctx->bit_rate; /* use kbps as input */
 642     else
 643         seq_param->bits_per_second = 0x3FFFF * 400;
 644
 645     seq_param->frame_rate = ctx->fps;
 646     seq_param->aspect_ratio_information = 1;
 647     seq_param->vbv_buffer_size = 3; /* B = 16 * 1024 * vbv_buffer_size */
 648
 649     seq_param->sequence_extension.bits.profile_and_level_indication = 4 << 4 | 0x8; /* FIXME: Main/Main ??? */
 650     seq_param->sequence_extension.bits.progressive_sequence = 1; /* progressive frame-pictures */
 651     seq_param->sequence_extension.bits.chroma_format = CHROMA_FORMAT_420; /* 4:2:0 */
 652     seq_param->sequence_extension.bits.low_delay = 0; /* FIXME */
 653     seq_param->sequence_extension.bits.frame_rate_extension_n = 0;
 654     seq_param->sequence_extension.bits.frame_rate_extension_d = 0;
 655
 656     seq_param->gop_header.bits.time_code = (1 << 12); /* bit12: marker_bit */
 657     seq_param->gop_header.bits.closed_gop = 0;
 658     seq_param->gop_header.bits.broken_link = 0;
 659 }
 660
 661 static void
 662 mpeg2enc_init_picture_parameter(struct mpeg2enc_context *ctx,
 663                                VAEncPictureParameterBufferMPEG2 *pic_param)
 664 {
 665     pic_param->forward_reference_picture = VA_INVALID_ID;
 666     pic_param->backward_reference_picture = VA_INVALID_ID;
 667     pic_param->reconstructed_picture = VA_INVALID_ID;
 668     pic_param->coded_buf = VA_INVALID_ID;
 669     pic_param->picture_type = VAEncPictureTypeIntra;
 670
 671     pic_param->temporal_reference = 0;
 672     pic_param->f_code[0][0] = 0xf;
 673     pic_param->f_code[0][1] = 0xf;
 674     pic_param->f_code[1][0] = 0xf;
 675     pic_param->f_code[1][1] = 0xf;
 676
 677     pic_param->picture_coding_extension.bits.intra_dc_precision = 0; /* 8bits */
 678     pic_param->picture_coding_extension.bits.picture_structure = 3; /* frame picture */
 679     pic_param->picture_coding_extension.bits.top_field_first = 0;
 680     pic_param->picture_coding_extension.bits.frame_pred_frame_dct = 1; /* FIXME */
 681     pic_param->picture_coding_extension.bits.concealment_motion_vectors = 0;
 682     pic_param->picture_coding_extension.bits.q_scale_type = 0;
 683     pic_param->picture_coding_extension.bits.intra_vlc_format = 0;
 684     pic_param->picture_coding_extension.bits.alternate_scan = 0;
 685     pic_param->picture_coding_extension.bits.repeat_first_field = 0;
 686     pic_param->picture_coding_extension.bits.progressive_frame = 1;
 687     pic_param->picture_coding_extension.bits.composite_display_flag = 0;
 688
 689     pic_param->user_data_length = 0;
 690 }
 691
 692 static void
 693 mpeg2enc_alloc_va_resources(struct mpeg2enc_context *ctx)
 694 {
 695     VAEntrypoint *entrypoint_list;
 696     VAConfigAttrib attrib_list[2];
 697     VAStatus va_status;
 698     int max_entrypoints, num_entrypoints, entrypoint;
 699     int major_ver, minor_ver;
 700
 701     ctx->va_dpy = va_open_display();
 702     va_status = vaInitialize(ctx->va_dpy,
 703                              &major_ver,
 704                              &minor_ver);
 705     CHECK_VASTATUS(va_status, "vaInitialize");
 706
 707     max_entrypoints = vaMaxNumEntrypoints(ctx->va_dpy);
 708     entrypoint_list = malloc(max_entrypoints * sizeof(VAEntrypoint));
 709     vaQueryConfigEntrypoints(ctx->va_dpy,
 710                              VAProfileMPEG2Simple,
 711                              entrypoint_list,
 712                              &num_entrypoints);
 713
 714     for (entrypoint = 0; entrypoint < num_entrypoints; entrypoint++) {
 715         if (entrypoint_list[entrypoint] == VAEntrypointEncSlice)
 716             break;
 717     }
 718
 719     free(entrypoint_list);
 720
 721     if (entrypoint == num_entrypoints) {
 722         /* not find Slice entry point */
 723         assert(0);
 724     }
 725
 726     /* find out the format for the render target, and rate control mode */
 727     attrib_list[0].type = VAConfigAttribRTFormat;
 728     attrib_list[1].type = VAConfigAttribRateControl;
 729     vaGetConfigAttributes(ctx->va_dpy,
 730                           VAProfileMPEG2Simple,
 731                           VAEntrypointEncSlice,
 732                           &attrib_list[0],
 733                           2);
 734
 735     if ((attrib_list[0].value & VA_RT_FORMAT_YUV420) == 0) {
 736         /* not find desired YUV420 RT format */
 737         assert(0);
 738     }
 739
 740     if ((attrib_list[1].value & ctx->rate_control_mode) == 0) {
 741         /* Can't find matched RC mode */
 742         fprintf(stderr, "RC mode %d isn't found, exit\n", ctx->rate_control_mode);
 743         assert(0);
 744     }
 745
 746     attrib_list[0].value = VA_RT_FORMAT_YUV420; /* set to desired RT format */
 747     attrib_list[1].value = ctx->rate_control_mode; /* set to desired RC mode */
 748
 749     va_status = vaCreateConfig(ctx->va_dpy,
 750                                VAProfileMPEG2Simple,
 751                                VAEntrypointEncSlice,
 752                                attrib_list,
 753                                2,
 754                                &ctx->config_id);
 755     CHECK_VASTATUS(va_status, "vaCreateConfig");
 756
 757     /* Create a context for this decode pipe */
 758     va_status = vaCreateContext(ctx->va_dpy,
 759                                 ctx->config_id,
 760                                 ctx->width,
 761                                 ctx->height,
 762                                 VA_PROGRESSIVE,
 763                                 0,
 764                                 0,
 765                                 &ctx->context_id);
 766     CHECK_VASTATUS(va_status, "vaCreateContext");
 767
 768     va_status = vaCreateSurfaces(ctx->va_dpy,
 769                                  VA_RT_FORMAT_YUV420,
 770                                  ctx->width,
 771                                  ctx->height,
 772                                  surface_ids,
 773                                  SID_NUMBER,
 774                                  NULL,
 775                                  0);
 776     CHECK_VASTATUS(va_status, "vaCreateSurfaces");
 777 }
 778
 779 static void
 780 mpeg2enc_init(struct mpeg2enc_context *ctx)
 781 {
 782     int i;
 783
 784     ctx->frame_data_buffer = (unsigned char *)malloc(ctx->frame_size);
 785     ctx->seq_param_buf_id = VA_INVALID_ID;
 786     ctx->pic_param_buf_id = VA_INVALID_ID;
 787     ctx->packed_seq_header_param_buf_id = VA_INVALID_ID;
 788     ctx->packed_seq_buf_id = VA_INVALID_ID;
 789     ctx->packed_pic_header_param_buf_id = VA_INVALID_ID;
 790     ctx->packed_pic_buf_id = VA_INVALID_ID;
 791     ctx->codedbuf_buf_id = VA_INVALID_ID;
 792     ctx->codedbuf_i_size = ctx->frame_size;
 793     ctx->codedbuf_pb_size = 0;
 794
 795     if (ctx->mode == 0)
 796         ctx->intra_period = 1;
 797     else
 798         ctx->intra_period = 16;
 799
 800     ctx->bit_rate = -1;
 801
 802     for (i = 0; i < MAX_SLICES; i++) {
 803         ctx->slice_param_buf_id[i] = VA_INVALID_ID;
 804     }
 805
 806     mpeg2enc_init_sequence_parameter(ctx, &ctx->seq_param);
 807     mpeg2enc_init_picture_parameter(ctx, &ctx->pic_param);
 808     mpeg2enc_alloc_va_resources(ctx);
 809
 810     /* thread */
 811     ctx->current_input_surface = SID_INPUT_PICTURE_0;
 812     ctx->current_upload_surface = SID_INPUT_PICTURE_1;
 813     ctx->upload_thread_value = pthread_create(&ctx->upload_thread_id,
 814                                               NULL,
 815                                               upload_yuv_to_surface,
 816                                               ctx);
 817 }
 818
 819 /*
 820  * run
 821  */
 822 static void
 823 mpeg2enc_update_picture_parameter(struct mpeg2enc_context *ctx,
 824                                  VAEncPictureType picture_type,
 825                                  int coded_order,
 826                                  int display_order)
 827 {
 828     VAEncPictureParameterBufferMPEG2 *pic_param;
 829     VAStatus va_status;
 830
 831     // Picture level
 832     pic_param = &ctx->pic_param;
 833     pic_param->picture_type = picture_type;
 834     pic_param->temporal_reference = display_order;
 835     pic_param->reconstructed_picture = surface_ids[SID_RECON_PICTURE];
 836     pic_param->forward_reference_picture = surface_ids[SID_REFERENCE_PICTURE_L0];
 837     pic_param->backward_reference_picture = surface_ids[SID_REFERENCE_PICTURE_L1];
 838     pic_param->coded_buf = ctx->codedbuf_buf_id;
 839
 840     va_status = vaCreateBuffer(ctx->va_dpy,
 841                                ctx->context_id,
 842                                VAEncPictureParameterBufferType,
 843                                sizeof(*pic_param),
 844                                1,
 845                                pic_param,
 846                                &ctx->pic_param_buf_id);
 847     CHECK_VASTATUS(va_status, "vaCreateBuffer");
 848 }
 849
 850 static void
 851 mpeg2enc_update_slice_parameter(struct mpeg2enc_context *ctx, VAEncPictureType picture_type)
 852 {
 853     VAEncSequenceParameterBufferMPEG2 *seq_param;
 854     VAEncPictureParameterBufferMPEG2 *pic_param;
 855     VAEncSliceParameterBufferMPEG2 *slice_param;
 856     VAStatus va_status;
 857     int i, width_in_mbs, height_in_mbs;
 858
 859     pic_param = &ctx->pic_param;
 860     assert(pic_param->picture_coding_extension.bits.q_scale_type == 0);
 861
 862     seq_param = &ctx->seq_param;
 863     width_in_mbs = (seq_param->picture_width + 15) / 16;
 864     height_in_mbs = (seq_param->picture_height + 15) / 16;
 865     ctx->num_slice_groups = 1;
 866
 867     for (i = 0; i < height_in_mbs; i++) {
 868         slice_param = &ctx->slice_param[i];
 869         slice_param->macroblock_address = i * width_in_mbs;
 870         slice_param->num_macroblocks = width_in_mbs;
 871         slice_param->is_intra_slice = (picture_type == VAEncPictureTypeIntra);
 872         slice_param->quantiser_scale_code = ctx->qp / 2;
 873     }
 874
 875     va_status = vaCreateBuffer(ctx->va_dpy,
 876                                ctx->context_id,
 877                                VAEncSliceParameterBufferType,
 878                                sizeof(*slice_param),
 879                                height_in_mbs,
 880                                ctx->slice_param,
 881                                ctx->slice_param_buf_id);
 882     CHECK_VASTATUS(va_status, "vaCreateBuffer");;
 883 }
 884
 885 static int
 886 begin_picture(struct mpeg2enc_context *ctx,
 887               int coded_order,
 888               int display_order,
 889               VAEncPictureType picture_type)
 890 {
 891     VAStatus va_status;
 892     int tmp;
 893     VAEncPackedHeaderParameterBuffer packed_header_param_buffer;
 894     unsigned int length_in_bits;
 895     unsigned char *packed_seq_buffer = NULL, *packed_pic_buffer = NULL;
 896
 897     if (ctx->upload_thread_value != 0) {
 898         fprintf(stderr, "FATAL error!!!\n");
 899         exit(1);
 900     }
 901
 902     pthread_join(ctx->upload_thread_id, NULL);
 903
 904     ctx->upload_thread_value = -1;
 905     tmp = ctx->current_input_surface;
 906     ctx->current_input_surface = ctx->current_upload_surface;
 907     ctx->current_upload_surface = tmp;
 908
 909     if (coded_order == 0) {
 910         assert(picture_type == VAEncPictureTypeIntra);
 911         length_in_bits = build_packed_seq_buffer(&ctx->seq_param, &packed_seq_buffer);
 912         packed_header_param_buffer.type = VAEncPackedHeaderMPEG2_SPS;
 913         packed_header_param_buffer.has_emulation_bytes = 0;
 914         packed_header_param_buffer.bit_length = length_in_bits;
 915         va_status = vaCreateBuffer(ctx->va_dpy,
 916                                    ctx->context_id,
 917                                    VAEncPackedHeaderParameterBufferType,
 918                                    sizeof(packed_header_param_buffer), 1, &packed_header_param_buffer,
 919                                    &ctx->packed_seq_header_param_buf_id);
 920         CHECK_VASTATUS(va_status,"vaCreateBuffer");
 921
 922         va_status = vaCreateBuffer(ctx->va_dpy,
 923                                    ctx->context_id,
 924                                    VAEncPackedHeaderDataBufferType,
 925                                    (length_in_bits + 7) / 8, 1, packed_seq_buffer,
 926                                    &ctx->packed_seq_buf_id);
 927         CHECK_VASTATUS(va_status,"vaCreateBuffer");
 928
 929         free(packed_seq_buffer);
 930     }
 931
 932     length_in_bits = build_packed_pic_buffer(&ctx->seq_param, &ctx->pic_param, &packed_pic_buffer);
 933     packed_header_param_buffer.type = VAEncPackedHeaderMPEG2_PPS;
 934     packed_header_param_buffer.has_emulation_bytes = 0;
 935     packed_header_param_buffer.bit_length = length_in_bits;
 936
 937     va_status = vaCreateBuffer(ctx->va_dpy,
 938                                ctx->context_id,
 939                                VAEncPackedHeaderParameterBufferType,
 940                                sizeof(packed_header_param_buffer), 1, &packed_header_param_buffer,
 941                                &ctx->packed_pic_header_param_buf_id);
 942     CHECK_VASTATUS(va_status,"vaCreateBuffer");
 943
 944     va_status = vaCreateBuffer(ctx->va_dpy,
 945                                ctx->context_id,
 946                                VAEncPackedHeaderDataBufferType,
 947                                (length_in_bits + 7) / 8, 1, packed_pic_buffer,
 948                                &ctx->packed_pic_buf_id);
 949     CHECK_VASTATUS(va_status,"vaCreateBuffer");
 950
 951     free(packed_pic_buffer);
 952
 953     /* sequence parameter set */
 954     VAEncSequenceParameterBufferMPEG2 *seq_param = &ctx->seq_param;
 955     va_status = vaCreateBuffer(ctx->va_dpy,
 956                                ctx->context_id,
 957                                VAEncSequenceParameterBufferType,
 958                                sizeof(*seq_param),
 959                                1,
 960                                seq_param,
 961                                &ctx->seq_param_buf_id);
 962     CHECK_VASTATUS(va_status,"vaCreateBuffer");;
 963
 964     /* slice parameter */
 965     mpeg2enc_update_slice_parameter(ctx, picture_type);
 966
 967     return 0;
 968 }
 969
 970 static int
 971 mpeg2enc_render_picture(struct mpeg2enc_context *ctx)
 972 {
 973     VAStatus va_status;
 974     VABufferID va_buffers[16];
 975     unsigned int num_va_buffers = 0;
 976
 977     va_buffers[num_va_buffers++] = ctx->seq_param_buf_id;
 978     va_buffers[num_va_buffers++] = ctx->pic_param_buf_id;
 979
 980     if (ctx->packed_seq_header_param_buf_id != VA_INVALID_ID)
 981         va_buffers[num_va_buffers++] = ctx->packed_seq_header_param_buf_id;
 982
 983     if (ctx->packed_seq_buf_id != VA_INVALID_ID)
 984         va_buffers[num_va_buffers++] = ctx->packed_seq_buf_id;
 985
 986     if (ctx->packed_pic_header_param_buf_id != VA_INVALID_ID)
 987         va_buffers[num_va_buffers++] = ctx->packed_pic_header_param_buf_id;
 988
 989     if (ctx->packed_pic_buf_id != VA_INVALID_ID)
 990         va_buffers[num_va_buffers++] = ctx->packed_pic_buf_id;
 991
 992     va_status = vaBeginPicture(ctx->va_dpy,
 993                                ctx->context_id,
 994                                surface_ids[ctx->current_input_surface]);
 995     CHECK_VASTATUS(va_status,"vaBeginPicture");
 996
 997     va_status = vaRenderPicture(ctx->va_dpy,
 998                                 ctx->context_id,
 999                                 va_buffers,
1000                                 num_va_buffers);
1001     CHECK_VASTATUS(va_status,"vaRenderPicture");
1002
1003     va_status = vaRenderPicture(ctx->va_dpy,
1004                                 ctx->context_id,
1005                                 &ctx->slice_param_buf_id[0],
1006                                 ctx->num_slice_groups);
1007     CHECK_VASTATUS(va_status,"vaRenderPicture");
1008
1009     va_status = vaEndPicture(ctx->va_dpy, ctx->context_id);
1010     CHECK_VASTATUS(va_status,"vaEndPicture");
1011
1012     return 0;
1013 }
1014
1015 static int
1016 mpeg2enc_destroy_buffers(struct mpeg2enc_context *ctx, VABufferID *va_buffers, unsigned int num_va_buffers)
1017 {
1018     VAStatus va_status;
1019     unsigned int i;
1020
1021     for (i = 0; i < num_va_buffers; i++) {
1022         if (va_buffers[i] != VA_INVALID_ID) {
1023             va_status = vaDestroyBuffer(ctx->va_dpy, va_buffers[i]);
1024             CHECK_VASTATUS(va_status,"vaDestroyBuffer");
1025             va_buffers[i] = VA_INVALID_ID;
1026         }
1027     }
1028
1029     return 0;
1030 }
1031
1032 static void
1033 end_picture(struct mpeg2enc_context *ctx, VAEncPictureType picture_type, int next_is_bpic)
1034 {
1035     VABufferID tempID;
1036
1037     /* Prepare for next picture */
1038     tempID = surface_ids[SID_RECON_PICTURE];
1039
1040     if (picture_type != VAEncPictureTypeBidirectional) {
1041         if (next_is_bpic) {
1042             surface_ids[SID_RECON_PICTURE] = surface_ids[SID_REFERENCE_PICTURE_L1];
1043             surface_ids[SID_REFERENCE_PICTURE_L1] = tempID;
1044         } else {
1045             surface_ids[SID_RECON_PICTURE] = surface_ids[SID_REFERENCE_PICTURE_L0];
1046             surface_ids[SID_REFERENCE_PICTURE_L0] = tempID;
1047         }
1048     } else {
1049         if (!next_is_bpic) {
1050             surface_ids[SID_RECON_PICTURE] = surface_ids[SID_REFERENCE_PICTURE_L0];
1051             surface_ids[SID_REFERENCE_PICTURE_L0] = surface_ids[SID_REFERENCE_PICTURE_L1];
1052             surface_ids[SID_REFERENCE_PICTURE_L1] = tempID;
1053         }
1054     }
1055
1056     mpeg2enc_destroy_buffers(ctx, &ctx->seq_param_buf_id, 1);
1057     mpeg2enc_destroy_buffers(ctx, &ctx->pic_param_buf_id, 1);
1058     mpeg2enc_destroy_buffers(ctx, &ctx->packed_seq_header_param_buf_id, 1);
1059     mpeg2enc_destroy_buffers(ctx, &ctx->packed_seq_buf_id, 1);
1060     mpeg2enc_destroy_buffers(ctx, &ctx->packed_pic_header_param_buf_id, 1);
1061     mpeg2enc_destroy_buffers(ctx, &ctx->packed_pic_buf_id, 1);
1062     mpeg2enc_destroy_buffers(ctx, &ctx->slice_param_buf_id[0], ctx->num_slice_groups);
1063     mpeg2enc_destroy_buffers(ctx, &ctx->codedbuf_buf_id, 1);
1064     memset(ctx->slice_param, 0, sizeof(ctx->slice_param));
1065     ctx->num_slice_groups = 0;
1066 }
1067
1068 static int
1069 store_coded_buffer(struct mpeg2enc_context *ctx, VAEncPictureType picture_type)
1070 {
1071     VACodedBufferSegment *coded_buffer_segment;
1072     unsigned char *coded_mem;
1073     int slice_data_length;
1074     VAStatus va_status;
1075     VASurfaceStatus surface_status;
1076     size_t w_items;
1077
1078     va_status = vaSyncSurface(ctx->va_dpy, surface_ids[ctx->current_input_surface]);
1079     CHECK_VASTATUS(va_status,"vaSyncSurface");
1080
1081     surface_status = 0;
1082     va_status = vaQuerySurfaceStatus(ctx->va_dpy, surface_ids[ctx->current_input_surface], &surface_status);
1083     CHECK_VASTATUS(va_status,"vaQuerySurfaceStatus");
1084
1085     va_status = vaMapBuffer(ctx->va_dpy, ctx->codedbuf_buf_id, (void **)(&coded_buffer_segment));
1086     CHECK_VASTATUS(va_status,"vaMapBuffer");
1087     coded_mem = coded_buffer_segment->buf;
1088
1089     if (coded_buffer_segment->status & VA_CODED_BUF_STATUS_SLICE_OVERFLOW_MASK) {
1090         if (picture_type == VAEncPictureTypeIntra)
1091             ctx->codedbuf_i_size *= 2;
1092         else
1093             ctx->codedbuf_pb_size *= 2;
1094
1095         vaUnmapBuffer(ctx->va_dpy, ctx->codedbuf_buf_id);
1096         return -1;
1097     }
1098
1099     slice_data_length = coded_buffer_segment->size;
1100
1101     do {
1102         w_items = fwrite(coded_mem, slice_data_length, 1, ctx->ofp);
1103     } while (w_items != 1);
1104
1105     if (picture_type == VAEncPictureTypeIntra) {
1106         if (ctx->codedbuf_i_size > slice_data_length * 3 / 2) {
1107             ctx->codedbuf_i_size = slice_data_length * 3 / 2;
1108         }
1109
1110         if (ctx->codedbuf_pb_size < slice_data_length) {
1111             ctx->codedbuf_pb_size = slice_data_length;
1112         }
1113     } else {
1114         if (ctx->codedbuf_pb_size > slice_data_length * 3 / 2) {
1115             ctx->codedbuf_pb_size = slice_data_length * 3 / 2;
1116         }
1117     }
1118
1119     vaUnmapBuffer(ctx->va_dpy, ctx->codedbuf_buf_id);
1120
1121     return 0;
1122 }
1123
1124 static void
1125 encode_picture(struct mpeg2enc_context *ctx,
1126                int coded_order,
1127                int display_order,
1128                VAEncPictureType picture_type,
1129                int next_is_bpic,
1130                int next_display_order)
1131 {
1132     VAStatus va_status;
1133     int ret = 0, codedbuf_size;
1134
1135     begin_picture(ctx, coded_order, display_order, picture_type);
1136
1137     if (1) {
1138         /* upload YUV data to VA surface for next frame */
1139         if (next_display_order >= ctx->num_pictures)
1140             next_display_order = ctx->num_pictures - 1;
1141
1142         fseek(ctx->ifp, ctx->frame_size * next_display_order, SEEK_SET);
1143         ctx->upload_thread_value = pthread_create(&ctx->upload_thread_id,
1144                                                   NULL,
1145                                                   upload_yuv_to_surface,
1146                                                   ctx);
1147     }
1148
1149     do {
1150         mpeg2enc_destroy_buffers(ctx, &ctx->codedbuf_buf_id, 1);
1151         mpeg2enc_destroy_buffers(ctx, &ctx->pic_param_buf_id, 1);
1152
1153
1154         if (VAEncPictureTypeIntra == picture_type) {
1155             codedbuf_size = ctx->codedbuf_i_size;
1156         } else {
1157             codedbuf_size = ctx->codedbuf_pb_size;
1158         }
1159
1160         /* coded buffer */
1161         va_status = vaCreateBuffer(ctx->va_dpy,
1162                                    ctx->context_id,
1163                                    VAEncCodedBufferType,
1164                                    codedbuf_size, 1, NULL,
1165                                    &ctx->codedbuf_buf_id);
1166         CHECK_VASTATUS(va_status,"vaCreateBuffer");
1167
1168         /* picture parameter set */
1169         mpeg2enc_update_picture_parameter(ctx, picture_type, coded_order, display_order);
1170
1171         mpeg2enc_render_picture(ctx);
1172
1173         ret = store_coded_buffer(ctx, picture_type);
1174     } while (ret);
1175
1176     end_picture(ctx, picture_type, next_is_bpic);
1177 }
1178
1179 static void
1180 encode_pb_pictures(struct mpeg2enc_context *ctx,
1181                    int coded_order,
1182                    int f,
1183                    int nbframes,
1184                    int next_f)
1185 {
1186     int i;
1187
1188     encode_picture(ctx,
1189                    coded_order,
1190                    f + nbframes,
1191                    VAEncPictureTypePredictive,
1192                    1,
1193                    f);
1194
1195     for( i = 0; i < nbframes - 1; i++) {
1196         encode_picture(ctx,
1197                        coded_order + 1,
1198                        f + i,
1199                        VAEncPictureTypeBidirectional,
1200                        1,
1201                        f + i + 1);
1202     }
1203
1204     encode_picture(ctx,
1205                    coded_order + 1,
1206                    f + nbframes - 1,
1207                    VAEncPictureTypeBidirectional,
1208                    0,
1209                    next_f);
1210 }
1211
1212 static void
1213 mpeg2enc_run(struct mpeg2enc_context *ctx)
1214 {
1215     int display_order = 0, coded_order = 0;
1216
1217     for (display_order = 0; display_order < ctx->num_pictures;) {
1218         if (ctx->mode == 0) {
1219             encode_picture(ctx,
1220                            coded_order,
1221                            display_order,
1222                            VAEncPictureTypeIntra,
1223                            0,
1224                            display_order + 1);
1225             display_order++;
1226             coded_order++;
1227         } else if (ctx->mode == 1) {
1228             assert(0);
1229             if ((display_order % ctx->intra_period) == 0) {
1230                 encode_picture(ctx,
1231                                coded_order,
1232                                display_order,
1233                                VAEncPictureTypeIntra,
1234                                0,
1235                                display_order + 1);
1236                 display_order++;
1237                 coded_order++;
1238             } else {
1239                 encode_picture(ctx,
1240                                coded_order,
1241                                display_order,
1242                                VAEncPictureTypePredictive,
1243                                0,
1244                                display_order + 1);
1245                 display_order++;
1246                 coded_order++;
1247             }
1248         } else { // follow the i,p,b pattern
1249             static int fcurrent = 0;
1250             int fnext;
1251
1252             assert(0);
1253
1254             fcurrent = fcurrent % (sizeof(picture_type_patter)/sizeof(int[2]));
1255             fnext = (fcurrent+1) % (sizeof(picture_type_patter)/sizeof(int[2]));
1256
1257             if ( picture_type_patter[fcurrent][0] == VAEncPictureTypeIntra ) {
1258                 encode_picture(ctx,
1259                                coded_order,
1260                                display_order,
1261                                VAEncPictureTypeIntra,
1262                                0,
1263                                display_order + picture_type_patter[fnext][1]);
1264                 display_order++;
1265                 coded_order++;
1266             } else {
1267                 encode_pb_pictures(ctx,
1268                                    coded_order,
1269                                    display_order,
1270                                    picture_type_patter[fcurrent][1] - 1,
1271                                    display_order + picture_type_patter[fcurrent][1] + picture_type_patter[fnext][1] - 1);
1272                 display_order += picture_type_patter[fcurrent][1];
1273                 coded_order++;
1274             }
1275
1276             fcurrent++;
1277         }
1278
1279         fprintf(stderr, "\r %d/%d ...", display_order + 1, ctx->num_pictures);
1280         fflush(stdout);
1281     }
1282 }
1283
1284 /*
1285  * end
1286  */
1287 static void
1288 mpeg2enc_release_va_resources(struct mpeg2enc_context *ctx)
1289 {
1290     vaDestroySurfaces(ctx->va_dpy, surface_ids, SID_NUMBER);
1291     vaDestroyContext(ctx->va_dpy, ctx->context_id);
1292     vaDestroyConfig(ctx->va_dpy, ctx->config_id);
1293     vaTerminate(ctx->va_dpy);
1294     va_close_display(ctx->va_dpy);
1295 }
1296
1297 static void
1298 mpeg2enc_end(struct mpeg2enc_context *ctx)
1299 {
1300     pthread_join(ctx->upload_thread_id, NULL);
1301     mpeg2enc_release_va_resources(ctx);
1302 }
1303
1304 int
1305 main(int argc, char *argv[])
1306 {
1307     struct mpeg2enc_context ctx;
1308     struct timeval tpstart, tpend;
1309     float timeuse;
1310
1311     gettimeofday(&tpstart, NULL);
1312
1313     memset(&ctx, 0, sizeof(ctx));
1314     parse_args(&ctx, argc, argv);
1315     mpeg2enc_init(&ctx);
1316     mpeg2enc_run(&ctx);
1317     mpeg2enc_end(&ctx);
1318
1319     gettimeofday(&tpend, NULL);
1320     timeuse = 1000000 * (tpend.tv_sec - tpstart.tv_sec) + tpend.tv_usec - tpstart.tv_usec;
1321     timeuse /= 1000000;
1322     fprintf(stderr, "\ndone!\n");
1323     fprintf(stderr, "encode %d frames in %f secondes, FPS is %.1f\n", ctx.num_pictures, timeuse, ctx.num_pictures / timeuse);
1324
1325     mpeg2enc_exit(&ctx, 0);
1326
1327     return 0;
1328 }