2 * Copyright (c) 2012 Intel Corporation. All Rights Reserved.
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:
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial portions
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.
25 * Simple MPEG-2 encoder based on libVA.
35 #include <sys/types.h>
41 #include <va/va_enc_mpeg2.h>
43 #include "va_display.h"
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
52 #define CHROMA_FORMAT_RESERVED 0
53 #define CHROMA_FORMAT_420 1
54 #define CHROMA_FORMAT_422 2
55 #define CHROMA_FORMAT_444 3
57 #define MAX_SLICES 128
65 #define CHECK_VASTATUS(va_status, func) \
66 if (va_status != VA_STATUS_SUCCESS) { \
67 fprintf(stderr, "%s:%s (%d) failed, exit\n", __func__, func, __LINE__); \
71 static int const picture_type_pattern[][2] = {{VAEncPictureTypeIntra, 1},
72 {VAEncPictureTypePredictive, 3}, {VAEncPictureTypePredictive, 3},{VAEncPictureTypePredictive, 3},
73 {VAEncPictureTypePredictive, 3}, {VAEncPictureTypePredictive, 3},{VAEncPictureTypePredictive, 3},
74 {VAEncPictureTypePredictive, 3}, {VAEncPictureTypePredictive, 3},{VAEncPictureTypePredictive, 3},
75 {VAEncPictureTypePredictive, 2}};
77 struct mpeg2enc_context {
79 int rate_control_mode;
81 int mode; /* 0:I, 1:I/P, 2:I/P/B */
89 unsigned char *frame_data_buffer;
91 int bit_rate; /* in kbps */
95 VAEncSequenceParameterBufferMPEG2 seq_param;
96 VAEncPictureParameterBufferMPEG2 pic_param;
97 VAEncSliceParameterBufferMPEG2 slice_param[MAX_SLICES];
98 VAContextID context_id;
100 VABufferID seq_param_buf_id; /* Sequence level parameter */
101 VABufferID pic_param_buf_id; /* Picture level parameter */
102 VABufferID slice_param_buf_id[MAX_SLICES]; /* Slice level parameter, multil slices */
103 VABufferID codedbuf_buf_id; /* Output buffer, compressed data */
104 VABufferID packed_seq_header_param_buf_id;
105 VABufferID packed_seq_buf_id;
106 VABufferID packed_pic_header_param_buf_id;
107 VABufferID packed_pic_buf_id;
108 int num_slice_groups;
110 int codedbuf_pb_size;
113 pthread_t upload_thread_id;
114 int upload_thread_value;
115 int current_input_surface;
116 int current_upload_surface;
122 #define BITSTREAM_ALLOCATE_STEPPING 4096
125 unsigned int *buffer;
127 int max_size_in_dword;
130 typedef struct __bitstream bitstream;
133 swap32(unsigned int val)
135 unsigned char *pval = (unsigned char *)&val;
137 return ((pval[0] << 24) |
144 bitstream_start(bitstream *bs)
146 bs->max_size_in_dword = BITSTREAM_ALLOCATE_STEPPING;
147 bs->buffer = calloc(bs->max_size_in_dword * sizeof(int), 1);
152 bitstream_end(bitstream *bs)
154 int pos = (bs->bit_offset >> 5);
155 int bit_offset = (bs->bit_offset & 0x1f);
156 int bit_left = 32 - bit_offset;
159 bs->buffer[pos] = swap32((bs->buffer[pos] << bit_left));
164 bitstream_put_ui(bitstream *bs, unsigned int val, int size_in_bits)
166 int pos = (bs->bit_offset >> 5);
167 int bit_offset = (bs->bit_offset & 0x1f);
168 int bit_left = 32 - bit_offset;
173 if (size_in_bits < 32)
174 val &= ((1 << size_in_bits) - 1);
176 bs->bit_offset += size_in_bits;
178 if (bit_left > size_in_bits) {
179 bs->buffer[pos] = (bs->buffer[pos] << size_in_bits | val);
181 size_in_bits -= bit_left;
182 bs->buffer[pos] = (bs->buffer[pos] << bit_left) | (val >> size_in_bits);
183 bs->buffer[pos] = swap32(bs->buffer[pos]);
185 if (pos + 1 == bs->max_size_in_dword) {
186 bs->max_size_in_dword += BITSTREAM_ALLOCATE_STEPPING;
187 bs->buffer = realloc(bs->buffer, bs->max_size_in_dword * sizeof(unsigned int));
190 bs->buffer[pos + 1] = val;
195 bitstream_byte_aligning(bitstream *bs, int bit)
197 int bit_offset = (bs->bit_offset & 0x7);
198 int bit_left = 8 - bit_offset;
204 assert(bit == 0 || bit == 1);
207 new_val = (1 << bit_left) - 1;
211 bitstream_put_ui(bs, new_val, bit_left);
214 static struct mpeg2_frame_rate {
217 } frame_rate_tab[] = {
229 find_frame_rate_code(const VAEncSequenceParameterBufferMPEG2 *seq_param)
231 unsigned int delta = -1;
233 float frame_rate_value = seq_param->frame_rate *
234 (seq_param->sequence_extension.bits.frame_rate_extension_d + 1) /
235 (seq_param->sequence_extension.bits.frame_rate_extension_n + 1);
237 for (i = 0; i < sizeof(frame_rate_tab) / sizeof(frame_rate_tab[0]); i++) {
239 if (abs(1000 * frame_rate_tab[i].value - 1000 * frame_rate_value) < delta) {
240 code = frame_rate_tab[i].code;
241 delta = abs(1000 * frame_rate_tab[i].value - 1000 * frame_rate_value);
249 sps_rbsp(const VAEncSequenceParameterBufferMPEG2 *seq_param,
252 int frame_rate_code = find_frame_rate_code(seq_param);
254 bitstream_put_ui(bs, START_CODE_SEQ, 32);
255 bitstream_put_ui(bs, seq_param->picture_width, 12);
256 bitstream_put_ui(bs, seq_param->picture_height, 12);
257 bitstream_put_ui(bs, seq_param->aspect_ratio_information, 4);
258 bitstream_put_ui(bs, frame_rate_code, 4); /* frame_rate_code */
259 bitstream_put_ui(bs, (seq_param->bits_per_second + 399) / 400, 18); /* the low 18 bits of bit_rate */
260 bitstream_put_ui(bs, 1, 1); /* marker_bit */
261 bitstream_put_ui(bs, seq_param->vbv_buffer_size, 10);
262 bitstream_put_ui(bs, 0, 1); /* constraint_parameter_flag, always 0 for MPEG-2 */
263 bitstream_put_ui(bs, 0, 1); /* load_intra_quantiser_matrix */
264 bitstream_put_ui(bs, 0, 1); /* load_non_intra_quantiser_matrix */
266 bitstream_byte_aligning(bs, 0);
268 bitstream_put_ui(bs, START_CODE_EXT, 32);
269 bitstream_put_ui(bs, 1, 4); /* sequence_extension id */
270 bitstream_put_ui(bs, seq_param->sequence_extension.bits.profile_and_level_indication, 8);
271 bitstream_put_ui(bs, seq_param->sequence_extension.bits.progressive_sequence, 1);
272 bitstream_put_ui(bs, seq_param->sequence_extension.bits.chroma_format, 2);
273 bitstream_put_ui(bs, seq_param->picture_width >> 12, 2);
274 bitstream_put_ui(bs, seq_param->picture_height >> 12, 2);
275 bitstream_put_ui(bs, ((seq_param->bits_per_second + 399) / 400) >> 18, 12); /* bit_rate_extension */
276 bitstream_put_ui(bs, 1, 1); /* marker_bit */
277 bitstream_put_ui(bs, seq_param->vbv_buffer_size >> 10, 8);
278 bitstream_put_ui(bs, seq_param->sequence_extension.bits.low_delay, 1);
279 bitstream_put_ui(bs, seq_param->sequence_extension.bits.frame_rate_extension_n, 2);
280 bitstream_put_ui(bs, seq_param->sequence_extension.bits.frame_rate_extension_d, 5);
282 bitstream_byte_aligning(bs, 0);
286 pps_rbsp(const VAEncSequenceParameterBufferMPEG2 *seq_param,
287 const VAEncPictureParameterBufferMPEG2 *pic_param,
293 if (pic_param->temporal_reference == 0) {
294 bitstream_put_ui(bs, START_CODE_GOP, 32);
295 bitstream_put_ui(bs, seq_param->gop_header.bits.time_code, 25);
296 bitstream_put_ui(bs, seq_param->gop_header.bits.closed_gop, 1);
297 bitstream_put_ui(bs, seq_param->gop_header.bits.broken_link, 1);
299 bitstream_byte_aligning(bs, 0);
302 if (seq_param->sequence_extension.bits.chroma_format == CHROMA_FORMAT_420)
303 chroma_420_type = pic_param->picture_coding_extension.bits.progressive_frame;
307 bitstream_put_ui(bs, START_CODE_PICUTRE, 32);
308 bitstream_put_ui(bs, pic_param->temporal_reference, 10);
310 pic_param->picture_type == VAEncPictureTypeIntra ? 1 :
311 pic_param->picture_type == VAEncPictureTypePredictive ? 2 : 3,
313 bitstream_put_ui(bs, 0xFFFF, 16); /* vbv_delay, always 0xFFFF */
315 if (pic_param->picture_type == VAEncPictureTypePredictive) {
316 bitstream_put_ui(bs, 0, 1); /* full_pel_forward_vector, always 0 for MPEG-2 */
317 bitstream_put_ui(bs, 7, 3); /* forward_f_code, always 7 for MPEG-2 */
320 if (pic_param->picture_type == VAEncPictureTypeBidirectional) {
321 bitstream_put_ui(bs, 0, 1); /* full_pel_backward_vector, always 0 for MPEG-2 */
322 bitstream_put_ui(bs, 7, 3); /* backward_f_code, always 7 for MPEG-2 */
325 bitstream_put_ui(bs, 0, 1); /* extra_bit_picture, 0 */
327 bitstream_byte_aligning(bs, 0);
329 bitstream_put_ui(bs, START_CODE_EXT, 32);
330 bitstream_put_ui(bs, 8, 4); /* Picture Coding Extension ID: 8 */
331 bitstream_put_ui(bs, pic_param->f_code[0][0], 4);
332 bitstream_put_ui(bs, pic_param->f_code[0][1], 4);
333 bitstream_put_ui(bs, pic_param->f_code[1][0], 4);
334 bitstream_put_ui(bs, pic_param->f_code[1][1], 4);
336 bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.intra_dc_precision, 2);
337 bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.picture_structure, 2);
338 bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.top_field_first, 1);
339 bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.frame_pred_frame_dct, 1);
340 bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.concealment_motion_vectors, 1);
341 bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.q_scale_type, 1);
342 bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.intra_vlc_format, 1);
343 bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.alternate_scan, 1);
344 bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.repeat_first_field, 1);
345 bitstream_put_ui(bs, chroma_420_type, 1);
346 bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.progressive_frame, 1);
347 bitstream_put_ui(bs, pic_param->picture_coding_extension.bits.composite_display_flag, 1);
349 bitstream_byte_aligning(bs, 0);
351 if (pic_param->user_data_length) {
352 bitstream_put_ui(bs, START_CODE_USER, 32);
354 for (i = 0; i < pic_param->user_data_length; i++) {
355 bitstream_put_ui(bs, pic_param->user_data[i], 8);
358 bitstream_byte_aligning(bs, 0);
363 build_packed_pic_buffer(const VAEncSequenceParameterBufferMPEG2 *seq_param,
364 const VAEncPictureParameterBufferMPEG2 *pic_param,
365 unsigned char **header_buffer)
369 bitstream_start(&bs);
370 pps_rbsp(seq_param, pic_param, &bs);
373 *header_buffer = (unsigned char *)bs.buffer;
374 return bs.bit_offset;
378 build_packed_seq_buffer(const VAEncSequenceParameterBufferMPEG2 *seq_param,
379 unsigned char **header_buffer)
383 bitstream_start(&bs);
384 sps_rbsp(seq_param, &bs);
387 *header_buffer = (unsigned char *)bs.buffer;
388 return bs.bit_offset;
394 #define SID_INPUT_PICTURE_0 0
395 #define SID_INPUT_PICTURE_1 1
396 #define SID_REFERENCE_PICTURE_L0 2
397 #define SID_REFERENCE_PICTURE_L1 3
398 #define SID_RECON_PICTURE 4
399 #define SID_NUMBER SID_RECON_PICTURE + 1
401 static VASurfaceID surface_ids[SID_NUMBER];
404 * upload thread function
407 upload_yuv_to_surface(void *data)
409 struct mpeg2enc_context *ctx = data;
410 VAImage surface_image;
412 void *surface_p = NULL;
413 unsigned char *y_src, *u_src, *v_src;
414 unsigned char *y_dst, *u_dst, *v_dst;
415 int y_size = ctx->width * ctx->height;
416 int u_size = (ctx->width >> 1) * (ctx->height >> 1);
421 n_items = fread(ctx->frame_data_buffer, ctx->frame_size, 1, ctx->ifp);
422 } while (n_items != 1);
424 va_status = vaDeriveImage(ctx->va_dpy, surface_ids[ctx->current_upload_surface], &surface_image);
425 CHECK_VASTATUS(va_status,"vaDeriveImage");
427 vaMapBuffer(ctx->va_dpy, surface_image.buf, &surface_p);
428 assert(VA_STATUS_SUCCESS == va_status);
430 y_src = ctx->frame_data_buffer;
431 u_src = ctx->frame_data_buffer + y_size; /* UV offset for NV12 */
432 v_src = ctx->frame_data_buffer + y_size + u_size;
434 y_dst = surface_p + surface_image.offsets[0];
435 u_dst = surface_p + surface_image.offsets[1]; /* UV offset for NV12 */
436 v_dst = surface_p + surface_image.offsets[2];
439 for (row = 0; row < surface_image.height; row++) {
440 memcpy(y_dst, y_src, surface_image.width);
441 y_dst += surface_image.pitches[0];
445 if (surface_image.format.fourcc == VA_FOURCC_NV12) { /* UV plane */
446 for (row = 0; row < surface_image.height / 2; row++) {
447 for (col = 0; col < surface_image.width / 2; col++) {
448 u_dst[col * 2] = u_src[col];
449 u_dst[col * 2 + 1] = v_src[col];
452 u_dst += surface_image.pitches[1];
453 u_src += (ctx->width / 2);
454 v_src += (ctx->width / 2);
457 for (row = 0; row < surface_image.height / 2; row++) {
458 for (col = 0; col < surface_image.width / 2; col++) {
459 u_dst[col] = u_src[col];
460 v_dst[col] = v_src[col];
463 u_dst += surface_image.pitches[1];
464 v_dst += surface_image.pitches[2];
465 u_src += (ctx->width / 2);
466 v_src += (ctx->width / 2);
470 vaUnmapBuffer(ctx->va_dpy, surface_image.buf);
471 vaDestroyImage(ctx->va_dpy, surface_image.image_id);
477 mpeg2enc_exit(struct mpeg2enc_context *ctx, int exit_code)
479 if (ctx->frame_data_buffer) {
480 free(ctx->frame_data_buffer);
481 ctx->frame_data_buffer = NULL;
500 fprintf(stderr, "Usage: %s --help\n", program);
501 fprintf(stderr, "\t--help print this message\n");
502 fprintf(stderr, "Usage: %s <width> <height> <ifile> <ofile> [options]\n", program);
503 fprintf(stderr, "\t<width> specifies the frame width\n");
504 fprintf(stderr, "\t<height> specifies the frame height\n");
505 fprintf(stderr, "\t<ifile> specifies the I420/IYUV YUV file\n");
506 fprintf(stderr, "\t<ofile> specifies the encoded MPEG-2 file\n");
507 fprintf(stderr, "where options include:\n");
508 fprintf(stderr, "\t--cqp <QP> const qp mode with specified <QP>\n");
509 fprintf(stderr, "\t--fps <FPS> specify the frame rate\n");
510 fprintf(stderr, "\t--mode <MODE> specify the mode 0 (I), 1 (I/P) and 2 (I/P/B)\n");
514 parse_args(struct mpeg2enc_context *ctx, int argc, char **argv)
517 int option_index = 0;
519 static struct option long_options[] = {
520 {"help", no_argument, 0, 'h'},
521 {"cqp", required_argument, 0, 'c'},
522 {"fps", required_argument, 0, 'f'},
523 {"mode", required_argument, 0, 'm'},
527 if ((argc == 2 && strcmp(argv[1], "--help") == 0) ||
531 ctx->width = atoi(argv[1]);
532 ctx->height = atoi(argv[2]);
534 if (ctx->width <= 0 || ctx->height <= 0) {
535 fprintf(stderr, "<width> and <height> must be greater than 0\n");
539 ctx->ifp = fopen(argv[3], "rb");
541 if (ctx->ifp == NULL) {
542 fprintf(stderr, "Can't open the input file\n");
546 fseek(ctx->ifp, 0l, SEEK_END);
547 file_size = ftell(ctx->ifp);
548 ctx->frame_size = ctx->width * ctx->height * 3 / 2;
550 if ((file_size < ctx->frame_size) ||
551 (file_size % ctx->frame_size)) {
552 fprintf(stderr, "The input file size %ld isn't a multiple of the frame size %d\n", file_size, ctx->frame_size);
556 ctx->num_pictures = file_size / ctx->frame_size;
557 fseek(ctx->ifp, 0l, SEEK_SET);
559 ctx->ofp = fopen(argv[4], "wb");
561 if (ctx->ofp == NULL) {
562 fprintf(stderr, "Can't create the output file\n");
569 ctx->rate_control_mode = VA_RC_CQP;
570 ctx->mode = MPEG2_MODE_IP;
574 while((c = getopt_long(argc, argv,
577 &option_index)) != -1) {
582 /* only support q_scale_type = 0 */
583 if (tmp > 62 || tmp < 2) {
584 fprintf(stderr, "Warning: QP must be in [2, 62]\n");
593 ctx->qp = tmp & 0xFE;
594 ctx->rate_control_mode = VA_RC_CQP;
602 fprintf(stderr, "Warning: FPS must be greater than 0\n");
606 ctx->rate_control_mode = VA_RC_CBR;
613 if (tmp < MPEG2_MODE_I || tmp > MPEG2_MODE_IPB)
614 fprintf(stderr, "Waning: MODE must be 0, 1, or 2\n");
621 fprintf(stderr, "Error: unkown command options\n");
633 mpeg2enc_exit(ctx, 1);
640 mpeg2enc_init_sequence_parameter(struct mpeg2enc_context *ctx,
641 VAEncSequenceParameterBufferMPEG2 *seq_param)
643 seq_param->intra_period = ctx->intra_period;
644 seq_param->ip_period = 0; /* FIXME: ??? */
645 seq_param->picture_width = ctx->width;
646 seq_param->picture_height = ctx->height;
648 if (ctx->bit_rate > 0)
649 seq_param->bits_per_second = 1024 * ctx->bit_rate; /* use kbps as input */
651 seq_param->bits_per_second = 0x3FFFF * 400;
653 seq_param->frame_rate = ctx->fps;
654 seq_param->aspect_ratio_information = 1;
655 seq_param->vbv_buffer_size = 3; /* B = 16 * 1024 * vbv_buffer_size */
657 seq_param->sequence_extension.bits.profile_and_level_indication = 4 << 4 | 0x8; /* FIXME: Main/Main ??? */
658 seq_param->sequence_extension.bits.progressive_sequence = 1; /* progressive frame-pictures */
659 seq_param->sequence_extension.bits.chroma_format = CHROMA_FORMAT_420; /* 4:2:0 */
660 seq_param->sequence_extension.bits.low_delay = 0; /* FIXME */
661 seq_param->sequence_extension.bits.frame_rate_extension_n = 0;
662 seq_param->sequence_extension.bits.frame_rate_extension_d = 0;
664 seq_param->gop_header.bits.time_code = (1 << 12); /* bit12: marker_bit */
665 seq_param->gop_header.bits.closed_gop = 0;
666 seq_param->gop_header.bits.broken_link = 0;
670 mpeg2enc_init_picture_parameter(struct mpeg2enc_context *ctx,
671 VAEncPictureParameterBufferMPEG2 *pic_param)
673 pic_param->forward_reference_picture = VA_INVALID_ID;
674 pic_param->backward_reference_picture = VA_INVALID_ID;
675 pic_param->reconstructed_picture = VA_INVALID_ID;
676 pic_param->coded_buf = VA_INVALID_ID;
677 pic_param->picture_type = VAEncPictureTypeIntra;
679 pic_param->temporal_reference = 0;
680 pic_param->f_code[0][0] = 0xf;
681 pic_param->f_code[0][1] = 0xf;
682 pic_param->f_code[1][0] = 0xf;
683 pic_param->f_code[1][1] = 0xf;
685 pic_param->picture_coding_extension.bits.intra_dc_precision = 0; /* 8bits */
686 pic_param->picture_coding_extension.bits.picture_structure = 3; /* frame picture */
687 pic_param->picture_coding_extension.bits.top_field_first = 0;
688 pic_param->picture_coding_extension.bits.frame_pred_frame_dct = 1; /* FIXME */
689 pic_param->picture_coding_extension.bits.concealment_motion_vectors = 0;
690 pic_param->picture_coding_extension.bits.q_scale_type = 0;
691 pic_param->picture_coding_extension.bits.intra_vlc_format = 0;
692 pic_param->picture_coding_extension.bits.alternate_scan = 0;
693 pic_param->picture_coding_extension.bits.repeat_first_field = 0;
694 pic_param->picture_coding_extension.bits.progressive_frame = 1;
695 pic_param->picture_coding_extension.bits.composite_display_flag = 0;
697 pic_param->user_data_length = 0;
701 mpeg2enc_alloc_va_resources(struct mpeg2enc_context *ctx)
703 VAEntrypoint *entrypoint_list;
704 VAConfigAttrib attrib_list[2];
706 int max_entrypoints, num_entrypoints, entrypoint;
707 int major_ver, minor_ver;
709 ctx->va_dpy = va_open_display();
710 va_status = vaInitialize(ctx->va_dpy,
713 CHECK_VASTATUS(va_status, "vaInitialize");
715 max_entrypoints = vaMaxNumEntrypoints(ctx->va_dpy);
716 entrypoint_list = malloc(max_entrypoints * sizeof(VAEntrypoint));
717 vaQueryConfigEntrypoints(ctx->va_dpy,
718 VAProfileMPEG2Simple,
722 for (entrypoint = 0; entrypoint < num_entrypoints; entrypoint++) {
723 if (entrypoint_list[entrypoint] == VAEntrypointEncSlice)
727 free(entrypoint_list);
729 if (entrypoint == num_entrypoints) {
730 /* not find Slice entry point */
734 /* find out the format for the render target, and rate control mode */
735 attrib_list[0].type = VAConfigAttribRTFormat;
736 attrib_list[1].type = VAConfigAttribRateControl;
737 vaGetConfigAttributes(ctx->va_dpy,
738 VAProfileMPEG2Simple,
739 VAEntrypointEncSlice,
743 if ((attrib_list[0].value & VA_RT_FORMAT_YUV420) == 0) {
744 /* not find desired YUV420 RT format */
748 if ((attrib_list[1].value & ctx->rate_control_mode) == 0) {
749 /* Can't find matched RC mode */
750 fprintf(stderr, "RC mode %d isn't found, exit\n", ctx->rate_control_mode);
754 attrib_list[0].value = VA_RT_FORMAT_YUV420; /* set to desired RT format */
755 attrib_list[1].value = ctx->rate_control_mode; /* set to desired RC mode */
757 va_status = vaCreateConfig(ctx->va_dpy,
758 VAProfileMPEG2Simple,
759 VAEntrypointEncSlice,
763 CHECK_VASTATUS(va_status, "vaCreateConfig");
765 /* Create a context for this decode pipe */
766 va_status = vaCreateContext(ctx->va_dpy,
774 CHECK_VASTATUS(va_status, "vaCreateContext");
776 va_status = vaCreateSurfaces(ctx->va_dpy,
782 CHECK_VASTATUS(va_status, "vaCreateSurfaces");
786 mpeg2enc_init(struct mpeg2enc_context *ctx)
790 ctx->frame_data_buffer = (unsigned char *)malloc(ctx->frame_size);
791 ctx->seq_param_buf_id = VA_INVALID_ID;
792 ctx->pic_param_buf_id = VA_INVALID_ID;
793 ctx->packed_seq_header_param_buf_id = VA_INVALID_ID;
794 ctx->packed_seq_buf_id = VA_INVALID_ID;
795 ctx->packed_pic_header_param_buf_id = VA_INVALID_ID;
796 ctx->packed_pic_buf_id = VA_INVALID_ID;
797 ctx->codedbuf_buf_id = VA_INVALID_ID;
798 ctx->codedbuf_i_size = ctx->frame_size;
799 ctx->codedbuf_pb_size = 0;
801 if (ctx->mode == MPEG2_MODE_I)
802 ctx->intra_period = 1;
804 ctx->intra_period = 16;
808 for (i = 0; i < MAX_SLICES; i++) {
809 ctx->slice_param_buf_id[i] = VA_INVALID_ID;
812 mpeg2enc_init_sequence_parameter(ctx, &ctx->seq_param);
813 mpeg2enc_init_picture_parameter(ctx, &ctx->pic_param);
814 mpeg2enc_alloc_va_resources(ctx);
817 ctx->current_input_surface = SID_INPUT_PICTURE_0;
818 ctx->current_upload_surface = SID_INPUT_PICTURE_1;
819 ctx->upload_thread_value = pthread_create(&ctx->upload_thread_id,
821 upload_yuv_to_surface,
826 mpeg2enc_time_code(VAEncSequenceParameterBufferMPEG2 *seq_param,
829 int fps = (int)(seq_param->frame_rate + 0.5);
831 int time_code_pictures, time_code_seconds, time_code_minutes, time_code_hours;
832 int drop_frame_flag = 0;
836 time_code_seconds = num_frames / fps;
837 time_code_pictures = num_frames % fps;
838 time_code |= time_code_pictures;
840 time_code_minutes = time_code_minutes / 60;
841 time_code_seconds = time_code_minutes % 60;
842 time_code |= (time_code_seconds << 6);
844 time_code_hours = time_code_minutes / 60;
845 time_code_minutes = time_code_minutes % 60;
847 time_code |= (1 << 12); /* marker_bit */
848 time_code |= (time_code_minutes << 13);
850 time_code_hours = time_code_hours % 24;
851 time_code |= (time_code_hours << 19);
853 time_code |= (drop_frame_flag << 24);
862 mpeg2enc_update_sequence_parameter(struct mpeg2enc_context *ctx,
863 VAEncPictureType picture_type,
867 VAEncSequenceParameterBufferMPEG2 *seq_param = &ctx->seq_param;
869 /* update the GOP info for the new GOP */
870 if (display_order % ctx->intra_period == 0) {
871 seq_param->gop_header.bits.time_code = mpeg2enc_time_code(seq_param, display_order);
876 mpeg2enc_update_picture_parameter(struct mpeg2enc_context *ctx,
877 VAEncPictureType picture_type,
881 VAEncPictureParameterBufferMPEG2 *pic_param = &ctx->pic_param;
883 pic_param->picture_type = picture_type;
884 pic_param->temporal_reference = display_order % ctx->intra_period;
885 pic_param->reconstructed_picture = surface_ids[SID_RECON_PICTURE];
886 pic_param->forward_reference_picture = surface_ids[SID_REFERENCE_PICTURE_L0];
887 pic_param->backward_reference_picture = surface_ids[SID_REFERENCE_PICTURE_L1];
891 mpeg2enc_update_picture_parameter_buffer(struct mpeg2enc_context *ctx,
892 VAEncPictureType picture_type,
896 VAEncPictureParameterBufferMPEG2 *pic_param = &ctx->pic_param;
899 /* update the coded buffer id */
900 pic_param->coded_buf = ctx->codedbuf_buf_id;
901 va_status = vaCreateBuffer(ctx->va_dpy,
903 VAEncPictureParameterBufferType,
907 &ctx->pic_param_buf_id);
908 CHECK_VASTATUS(va_status, "vaCreateBuffer");
912 mpeg2enc_update_slice_parameter(struct mpeg2enc_context *ctx, VAEncPictureType picture_type)
914 VAEncSequenceParameterBufferMPEG2 *seq_param;
915 VAEncPictureParameterBufferMPEG2 *pic_param;
916 VAEncSliceParameterBufferMPEG2 *slice_param;
918 int i, width_in_mbs, height_in_mbs;
920 pic_param = &ctx->pic_param;
921 assert(pic_param->picture_coding_extension.bits.q_scale_type == 0);
923 seq_param = &ctx->seq_param;
924 width_in_mbs = (seq_param->picture_width + 15) / 16;
925 height_in_mbs = (seq_param->picture_height + 15) / 16;
926 ctx->num_slice_groups = 1;
928 for (i = 0; i < height_in_mbs; i++) {
929 slice_param = &ctx->slice_param[i];
930 slice_param->macroblock_address = i * width_in_mbs;
931 slice_param->num_macroblocks = width_in_mbs;
932 slice_param->is_intra_slice = (picture_type == VAEncPictureTypeIntra);
933 slice_param->quantiser_scale_code = ctx->qp / 2;
936 va_status = vaCreateBuffer(ctx->va_dpy,
938 VAEncSliceParameterBufferType,
939 sizeof(*slice_param),
942 ctx->slice_param_buf_id);
943 CHECK_VASTATUS(va_status, "vaCreateBuffer");;
947 begin_picture(struct mpeg2enc_context *ctx,
950 VAEncPictureType picture_type)
954 VAEncPackedHeaderParameterBuffer packed_header_param_buffer;
955 unsigned int length_in_bits;
956 unsigned char *packed_seq_buffer = NULL, *packed_pic_buffer = NULL;
958 if (ctx->upload_thread_value != 0) {
959 fprintf(stderr, "FATAL error!!!\n");
963 pthread_join(ctx->upload_thread_id, NULL);
965 ctx->upload_thread_value = -1;
966 tmp = ctx->current_input_surface;
967 ctx->current_input_surface = ctx->current_upload_surface;
968 ctx->current_upload_surface = tmp;
970 mpeg2enc_update_sequence_parameter(ctx, picture_type, coded_order, display_order);
971 mpeg2enc_update_picture_parameter(ctx, picture_type, coded_order, display_order);
973 if (coded_order == 0) {
974 assert(picture_type == VAEncPictureTypeIntra);
975 length_in_bits = build_packed_seq_buffer(&ctx->seq_param, &packed_seq_buffer);
976 packed_header_param_buffer.type = VAEncPackedHeaderMPEG2_SPS;
977 packed_header_param_buffer.has_emulation_bytes = 0;
978 packed_header_param_buffer.bit_length = length_in_bits;
979 va_status = vaCreateBuffer(ctx->va_dpy,
981 VAEncPackedHeaderParameterBufferType,
982 sizeof(packed_header_param_buffer), 1, &packed_header_param_buffer,
983 &ctx->packed_seq_header_param_buf_id);
984 CHECK_VASTATUS(va_status,"vaCreateBuffer");
986 va_status = vaCreateBuffer(ctx->va_dpy,
988 VAEncPackedHeaderDataBufferType,
989 (length_in_bits + 7) / 8, 1, packed_seq_buffer,
990 &ctx->packed_seq_buf_id);
991 CHECK_VASTATUS(va_status,"vaCreateBuffer");
993 free(packed_seq_buffer);
996 length_in_bits = build_packed_pic_buffer(&ctx->seq_param, &ctx->pic_param, &packed_pic_buffer);
997 packed_header_param_buffer.type = VAEncPackedHeaderMPEG2_PPS;
998 packed_header_param_buffer.has_emulation_bytes = 0;
999 packed_header_param_buffer.bit_length = length_in_bits;
1001 va_status = vaCreateBuffer(ctx->va_dpy,
1003 VAEncPackedHeaderParameterBufferType,
1004 sizeof(packed_header_param_buffer), 1, &packed_header_param_buffer,
1005 &ctx->packed_pic_header_param_buf_id);
1006 CHECK_VASTATUS(va_status,"vaCreateBuffer");
1008 va_status = vaCreateBuffer(ctx->va_dpy,
1010 VAEncPackedHeaderDataBufferType,
1011 (length_in_bits + 7) / 8, 1, packed_pic_buffer,
1012 &ctx->packed_pic_buf_id);
1013 CHECK_VASTATUS(va_status,"vaCreateBuffer");
1015 free(packed_pic_buffer);
1017 /* sequence parameter set */
1018 VAEncSequenceParameterBufferMPEG2 *seq_param = &ctx->seq_param;
1019 va_status = vaCreateBuffer(ctx->va_dpy,
1021 VAEncSequenceParameterBufferType,
1025 &ctx->seq_param_buf_id);
1026 CHECK_VASTATUS(va_status,"vaCreateBuffer");;
1028 /* slice parameter */
1029 mpeg2enc_update_slice_parameter(ctx, picture_type);
1035 mpeg2enc_render_picture(struct mpeg2enc_context *ctx)
1038 VABufferID va_buffers[16];
1039 unsigned int num_va_buffers = 0;
1041 va_buffers[num_va_buffers++] = ctx->seq_param_buf_id;
1042 va_buffers[num_va_buffers++] = ctx->pic_param_buf_id;
1044 if (ctx->packed_seq_header_param_buf_id != VA_INVALID_ID)
1045 va_buffers[num_va_buffers++] = ctx->packed_seq_header_param_buf_id;
1047 if (ctx->packed_seq_buf_id != VA_INVALID_ID)
1048 va_buffers[num_va_buffers++] = ctx->packed_seq_buf_id;
1050 if (ctx->packed_pic_header_param_buf_id != VA_INVALID_ID)
1051 va_buffers[num_va_buffers++] = ctx->packed_pic_header_param_buf_id;
1053 if (ctx->packed_pic_buf_id != VA_INVALID_ID)
1054 va_buffers[num_va_buffers++] = ctx->packed_pic_buf_id;
1056 va_status = vaBeginPicture(ctx->va_dpy,
1058 surface_ids[ctx->current_input_surface]);
1059 CHECK_VASTATUS(va_status,"vaBeginPicture");
1061 va_status = vaRenderPicture(ctx->va_dpy,
1065 CHECK_VASTATUS(va_status,"vaRenderPicture");
1067 va_status = vaRenderPicture(ctx->va_dpy,
1069 &ctx->slice_param_buf_id[0],
1070 ctx->num_slice_groups);
1071 CHECK_VASTATUS(va_status,"vaRenderPicture");
1073 va_status = vaEndPicture(ctx->va_dpy, ctx->context_id);
1074 CHECK_VASTATUS(va_status,"vaEndPicture");
1080 mpeg2enc_destroy_buffers(struct mpeg2enc_context *ctx, VABufferID *va_buffers, unsigned int num_va_buffers)
1085 for (i = 0; i < num_va_buffers; i++) {
1086 if (va_buffers[i] != VA_INVALID_ID) {
1087 va_status = vaDestroyBuffer(ctx->va_dpy, va_buffers[i]);
1088 CHECK_VASTATUS(va_status,"vaDestroyBuffer");
1089 va_buffers[i] = VA_INVALID_ID;
1097 end_picture(struct mpeg2enc_context *ctx, VAEncPictureType picture_type, int next_is_bpic)
1101 /* Prepare for next picture */
1102 tempID = surface_ids[SID_RECON_PICTURE];
1104 if (picture_type != VAEncPictureTypeBidirectional) {
1106 surface_ids[SID_RECON_PICTURE] = surface_ids[SID_REFERENCE_PICTURE_L1];
1107 surface_ids[SID_REFERENCE_PICTURE_L1] = tempID;
1109 surface_ids[SID_RECON_PICTURE] = surface_ids[SID_REFERENCE_PICTURE_L0];
1110 surface_ids[SID_REFERENCE_PICTURE_L0] = tempID;
1113 if (!next_is_bpic) {
1114 surface_ids[SID_RECON_PICTURE] = surface_ids[SID_REFERENCE_PICTURE_L0];
1115 surface_ids[SID_REFERENCE_PICTURE_L0] = surface_ids[SID_REFERENCE_PICTURE_L1];
1116 surface_ids[SID_REFERENCE_PICTURE_L1] = tempID;
1120 mpeg2enc_destroy_buffers(ctx, &ctx->seq_param_buf_id, 1);
1121 mpeg2enc_destroy_buffers(ctx, &ctx->pic_param_buf_id, 1);
1122 mpeg2enc_destroy_buffers(ctx, &ctx->packed_seq_header_param_buf_id, 1);
1123 mpeg2enc_destroy_buffers(ctx, &ctx->packed_seq_buf_id, 1);
1124 mpeg2enc_destroy_buffers(ctx, &ctx->packed_pic_header_param_buf_id, 1);
1125 mpeg2enc_destroy_buffers(ctx, &ctx->packed_pic_buf_id, 1);
1126 mpeg2enc_destroy_buffers(ctx, &ctx->slice_param_buf_id[0], ctx->num_slice_groups);
1127 mpeg2enc_destroy_buffers(ctx, &ctx->codedbuf_buf_id, 1);
1128 memset(ctx->slice_param, 0, sizeof(ctx->slice_param));
1129 ctx->num_slice_groups = 0;
1133 store_coded_buffer(struct mpeg2enc_context *ctx, VAEncPictureType picture_type)
1135 VACodedBufferSegment *coded_buffer_segment;
1136 unsigned char *coded_mem;
1137 int slice_data_length;
1139 VASurfaceStatus surface_status;
1142 va_status = vaSyncSurface(ctx->va_dpy, surface_ids[ctx->current_input_surface]);
1143 CHECK_VASTATUS(va_status,"vaSyncSurface");
1146 va_status = vaQuerySurfaceStatus(ctx->va_dpy, surface_ids[ctx->current_input_surface], &surface_status);
1147 CHECK_VASTATUS(va_status,"vaQuerySurfaceStatus");
1149 va_status = vaMapBuffer(ctx->va_dpy, ctx->codedbuf_buf_id, (void **)(&coded_buffer_segment));
1150 CHECK_VASTATUS(va_status,"vaMapBuffer");
1151 coded_mem = coded_buffer_segment->buf;
1153 if (coded_buffer_segment->status & VA_CODED_BUF_STATUS_SLICE_OVERFLOW_MASK) {
1154 if (picture_type == VAEncPictureTypeIntra)
1155 ctx->codedbuf_i_size *= 2;
1157 ctx->codedbuf_pb_size *= 2;
1159 vaUnmapBuffer(ctx->va_dpy, ctx->codedbuf_buf_id);
1163 slice_data_length = coded_buffer_segment->size;
1166 w_items = fwrite(coded_mem, slice_data_length, 1, ctx->ofp);
1167 } while (w_items != 1);
1169 if (picture_type == VAEncPictureTypeIntra) {
1170 if (ctx->codedbuf_i_size > slice_data_length * 3 / 2) {
1171 ctx->codedbuf_i_size = slice_data_length * 3 / 2;
1174 if (ctx->codedbuf_pb_size < slice_data_length) {
1175 ctx->codedbuf_pb_size = slice_data_length;
1178 if (ctx->codedbuf_pb_size > slice_data_length * 3 / 2) {
1179 ctx->codedbuf_pb_size = slice_data_length * 3 / 2;
1183 vaUnmapBuffer(ctx->va_dpy, ctx->codedbuf_buf_id);
1189 encode_picture(struct mpeg2enc_context *ctx,
1192 VAEncPictureType picture_type,
1194 int next_display_order)
1197 int ret = 0, codedbuf_size;
1199 begin_picture(ctx, coded_order, display_order, picture_type);
1202 /* upload YUV data to VA surface for next frame */
1203 if (next_display_order >= ctx->num_pictures)
1204 next_display_order = ctx->num_pictures - 1;
1206 fseek(ctx->ifp, ctx->frame_size * next_display_order, SEEK_SET);
1207 ctx->upload_thread_value = pthread_create(&ctx->upload_thread_id,
1209 upload_yuv_to_surface,
1214 mpeg2enc_destroy_buffers(ctx, &ctx->codedbuf_buf_id, 1);
1215 mpeg2enc_destroy_buffers(ctx, &ctx->pic_param_buf_id, 1);
1218 if (VAEncPictureTypeIntra == picture_type) {
1219 codedbuf_size = ctx->codedbuf_i_size;
1221 codedbuf_size = ctx->codedbuf_pb_size;
1225 va_status = vaCreateBuffer(ctx->va_dpy,
1227 VAEncCodedBufferType,
1228 codedbuf_size, 1, NULL,
1229 &ctx->codedbuf_buf_id);
1230 CHECK_VASTATUS(va_status,"vaCreateBuffer");
1232 /* picture parameter set */
1233 mpeg2enc_update_picture_parameter_buffer(ctx, picture_type, coded_order, display_order);
1235 mpeg2enc_render_picture(ctx);
1237 ret = store_coded_buffer(ctx, picture_type);
1240 end_picture(ctx, picture_type, next_is_bpic);
1244 encode_pb_pictures(struct mpeg2enc_context *ctx,
1255 VAEncPictureTypePredictive,
1259 for( i = 0; i < nbframes - 1; i++) {
1263 VAEncPictureTypeBidirectional,
1271 VAEncPictureTypeBidirectional,
1277 mpeg2enc_run(struct mpeg2enc_context *ctx)
1279 int display_order = 0, coded_order = 0;
1281 for (display_order = 0; display_order < ctx->num_pictures;) {
1282 if (ctx->mode == MPEG2_MODE_I) {
1286 VAEncPictureTypeIntra,
1291 } else if (ctx->mode == MPEG2_MODE_IP) {
1293 if ((display_order % ctx->intra_period) == 0) {
1297 VAEncPictureTypeIntra,
1306 VAEncPictureTypePredictive,
1312 } else { // follow the i,p,b pattern
1313 static int fcurrent = 0;
1318 fcurrent = fcurrent % (sizeof(picture_type_pattern)/sizeof(int[2]));
1319 fnext = (fcurrent+1) % (sizeof(picture_type_pattern)/sizeof(int[2]));
1321 if ( picture_type_pattern[fcurrent][0] == VAEncPictureTypeIntra ) {
1325 VAEncPictureTypeIntra,
1327 display_order + picture_type_pattern[fnext][1]);
1331 encode_pb_pictures(ctx,
1334 picture_type_pattern[fcurrent][1] - 1,
1335 display_order + picture_type_pattern[fcurrent][1] + picture_type_pattern[fnext][1] - 1);
1336 display_order += picture_type_pattern[fcurrent][1];
1343 fprintf(stderr, "\r %d/%d ...", display_order + 1, ctx->num_pictures);
1352 mpeg2enc_release_va_resources(struct mpeg2enc_context *ctx)
1354 vaDestroySurfaces(ctx->va_dpy, surface_ids, SID_NUMBER);
1355 vaDestroyContext(ctx->va_dpy, ctx->context_id);
1356 vaDestroyConfig(ctx->va_dpy, ctx->config_id);
1357 vaTerminate(ctx->va_dpy);
1358 va_close_display(ctx->va_dpy);
1362 mpeg2enc_end(struct mpeg2enc_context *ctx)
1364 pthread_join(ctx->upload_thread_id, NULL);
1365 mpeg2enc_release_va_resources(ctx);
1369 main(int argc, char *argv[])
1371 struct mpeg2enc_context ctx;
1372 struct timeval tpstart, tpend;
1375 gettimeofday(&tpstart, NULL);
1377 memset(&ctx, 0, sizeof(ctx));
1378 parse_args(&ctx, argc, argv);
1379 mpeg2enc_init(&ctx);
1383 gettimeofday(&tpend, NULL);
1384 timeuse = 1000000 * (tpend.tv_sec - tpstart.tv_sec) + tpend.tv_usec - tpstart.tv_usec;
1386 fprintf(stderr, "\ndone!\n");
1387 fprintf(stderr, "encode %d frames in %f secondes, FPS is %.1f\n", ctx.num_pictures, timeuse, ctx.num_pictures / timeuse);
1389 mpeg2enc_exit(&ctx, 0);