WebM VP8 Codec SDK
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00001 /* 00002 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 00003 * 00004 * Use of this source code is governed by a BSD-style license 00005 * that can be found in the LICENSE file in the root of the source 00006 * tree. An additional intellectual property rights grant can be found 00007 * in the file PATENTS. All contributing project authors may 00008 * be found in the AUTHORS file in the root of the source tree. 00009 */ 00010 00011 00012 /* This is a simple program that encodes YV12 files and generates ivf 00013 * files using the new interface. 00014 */ 00015 #if defined(_WIN32) || !CONFIG_OS_SUPPORT 00016 #define USE_POSIX_MMAP 0 00017 #else 00018 #define USE_POSIX_MMAP 1 00019 #endif 00020 00021 #include <stdio.h> 00022 #include <stdlib.h> 00023 #include <stdarg.h> 00024 #include <string.h> 00025 #include <limits.h> 00026 #include <assert.h> 00027 #include "vpx/vpx_encoder.h" 00028 #if USE_POSIX_MMAP 00029 #include <sys/types.h> 00030 #include <sys/stat.h> 00031 #include <sys/mman.h> 00032 #include <fcntl.h> 00033 #include <unistd.h> 00034 #endif 00035 #include "vpx/vp8cx.h" 00036 #include "vpx_ports/mem_ops.h" 00037 #include "vpx_ports/vpx_timer.h" 00038 #include "tools_common.h" 00039 #include "y4minput.h" 00040 #include "libmkv/EbmlWriter.h" 00041 #include "libmkv/EbmlIDs.h" 00042 00043 /* Need special handling of these functions on Windows */ 00044 #if defined(_MSC_VER) 00045 /* MSVS doesn't define off_t, and uses _f{seek,tell}i64 */ 00046 typedef __int64 off_t; 00047 #define fseeko _fseeki64 00048 #define ftello _ftelli64 00049 #elif defined(_WIN32) 00050 /* MinGW defines off_t as long 00051 and uses f{seek,tell}o64/off64_t for large files */ 00052 #define fseeko fseeko64 00053 #define ftello ftello64 00054 #define off_t off64_t 00055 #endif 00056 00057 #if defined(_MSC_VER) 00058 #define LITERALU64(n) n 00059 #else 00060 #define LITERALU64(n) n##LLU 00061 #endif 00062 00063 /* We should use 32-bit file operations in WebM file format 00064 * when building ARM executable file (.axf) with RVCT */ 00065 #if !CONFIG_OS_SUPPORT 00066 typedef long off_t; 00067 #define fseeko fseek 00068 #define ftello ftell 00069 #endif 00070 00071 static const char *exec_name; 00072 00073 static const struct codec_item 00074 { 00075 char const *name; 00076 const vpx_codec_iface_t *iface; 00077 unsigned int fourcc; 00078 } codecs[] = 00079 { 00080 #if CONFIG_VP8_ENCODER 00081 {"vp8", &vpx_codec_vp8_cx_algo, 0x30385056}, 00082 #endif 00083 }; 00084 00085 static void usage_exit(); 00086 00087 void die(const char *fmt, ...) 00088 { 00089 va_list ap; 00090 va_start(ap, fmt); 00091 vfprintf(stderr, fmt, ap); 00092 fprintf(stderr, "\n"); 00093 usage_exit(); 00094 } 00095 00096 static void ctx_exit_on_error(vpx_codec_ctx_t *ctx, const char *s) 00097 { 00098 if (ctx->err) 00099 { 00100 const char *detail = vpx_codec_error_detail(ctx); 00101 00102 fprintf(stderr, "%s: %s\n", s, vpx_codec_error(ctx)); 00103 00104 if (detail) 00105 fprintf(stderr, " %s\n", detail); 00106 00107 exit(EXIT_FAILURE); 00108 } 00109 } 00110 00111 /* This structure is used to abstract the different ways of handling 00112 * first pass statistics. 00113 */ 00114 typedef struct 00115 { 00116 vpx_fixed_buf_t buf; 00117 int pass; 00118 FILE *file; 00119 char *buf_ptr; 00120 size_t buf_alloc_sz; 00121 } stats_io_t; 00122 00123 int stats_open_file(stats_io_t *stats, const char *fpf, int pass) 00124 { 00125 int res; 00126 00127 stats->pass = pass; 00128 00129 if (pass == 0) 00130 { 00131 stats->file = fopen(fpf, "wb"); 00132 stats->buf.sz = 0; 00133 stats->buf.buf = NULL, 00134 res = (stats->file != NULL); 00135 } 00136 else 00137 { 00138 #if 0 00139 #elif USE_POSIX_MMAP 00140 struct stat stat_buf; 00141 int fd; 00142 00143 fd = open(fpf, O_RDONLY); 00144 stats->file = fdopen(fd, "rb"); 00145 fstat(fd, &stat_buf); 00146 stats->buf.sz = stat_buf.st_size; 00147 stats->buf.buf = mmap(NULL, stats->buf.sz, PROT_READ, MAP_PRIVATE, 00148 fd, 0); 00149 res = (stats->buf.buf != NULL); 00150 #else 00151 size_t nbytes; 00152 00153 stats->file = fopen(fpf, "rb"); 00154 00155 if (fseek(stats->file, 0, SEEK_END)) 00156 { 00157 fprintf(stderr, "First-pass stats file must be seekable!\n"); 00158 exit(EXIT_FAILURE); 00159 } 00160 00161 stats->buf.sz = stats->buf_alloc_sz = ftell(stats->file); 00162 rewind(stats->file); 00163 00164 stats->buf.buf = malloc(stats->buf_alloc_sz); 00165 00166 if (!stats->buf.buf) 00167 { 00168 fprintf(stderr, "Failed to allocate first-pass stats buffer (%lu bytes)\n", 00169 (unsigned long)stats->buf_alloc_sz); 00170 exit(EXIT_FAILURE); 00171 } 00172 00173 nbytes = fread(stats->buf.buf, 1, stats->buf.sz, stats->file); 00174 res = (nbytes == stats->buf.sz); 00175 #endif 00176 } 00177 00178 return res; 00179 } 00180 00181 int stats_open_mem(stats_io_t *stats, int pass) 00182 { 00183 int res; 00184 stats->pass = pass; 00185 00186 if (!pass) 00187 { 00188 stats->buf.sz = 0; 00189 stats->buf_alloc_sz = 64 * 1024; 00190 stats->buf.buf = malloc(stats->buf_alloc_sz); 00191 } 00192 00193 stats->buf_ptr = stats->buf.buf; 00194 res = (stats->buf.buf != NULL); 00195 return res; 00196 } 00197 00198 00199 void stats_close(stats_io_t *stats, int last_pass) 00200 { 00201 if (stats->file) 00202 { 00203 if (stats->pass == last_pass) 00204 { 00205 #if 0 00206 #elif USE_POSIX_MMAP 00207 munmap(stats->buf.buf, stats->buf.sz); 00208 #else 00209 free(stats->buf.buf); 00210 #endif 00211 } 00212 00213 fclose(stats->file); 00214 stats->file = NULL; 00215 } 00216 else 00217 { 00218 if (stats->pass == last_pass) 00219 free(stats->buf.buf); 00220 } 00221 } 00222 00223 void stats_write(stats_io_t *stats, const void *pkt, size_t len) 00224 { 00225 if (stats->file) 00226 { 00227 if(fwrite(pkt, 1, len, stats->file)); 00228 } 00229 else 00230 { 00231 if (stats->buf.sz + len > stats->buf_alloc_sz) 00232 { 00233 size_t new_sz = stats->buf_alloc_sz + 64 * 1024; 00234 char *new_ptr = realloc(stats->buf.buf, new_sz); 00235 00236 if (new_ptr) 00237 { 00238 stats->buf_ptr = new_ptr + (stats->buf_ptr - (char *)stats->buf.buf); 00239 stats->buf.buf = new_ptr; 00240 stats->buf_alloc_sz = new_sz; 00241 } 00242 else 00243 { 00244 fprintf(stderr, 00245 "\nFailed to realloc firstpass stats buffer.\n"); 00246 exit(EXIT_FAILURE); 00247 } 00248 } 00249 00250 memcpy(stats->buf_ptr, pkt, len); 00251 stats->buf.sz += len; 00252 stats->buf_ptr += len; 00253 } 00254 } 00255 00256 vpx_fixed_buf_t stats_get(stats_io_t *stats) 00257 { 00258 return stats->buf; 00259 } 00260 00261 /* Stereo 3D packed frame format */ 00262 typedef enum stereo_format 00263 { 00264 STEREO_FORMAT_MONO = 0, 00265 STEREO_FORMAT_LEFT_RIGHT = 1, 00266 STEREO_FORMAT_BOTTOM_TOP = 2, 00267 STEREO_FORMAT_TOP_BOTTOM = 3, 00268 STEREO_FORMAT_RIGHT_LEFT = 11 00269 } stereo_format_t; 00270 00271 enum video_file_type 00272 { 00273 FILE_TYPE_RAW, 00274 FILE_TYPE_IVF, 00275 FILE_TYPE_Y4M 00276 }; 00277 00278 struct detect_buffer { 00279 char buf[4]; 00280 size_t buf_read; 00281 size_t position; 00282 }; 00283 00284 00285 #define IVF_FRAME_HDR_SZ (4+8) /* 4 byte size + 8 byte timestamp */ 00286 static int read_frame(FILE *f, vpx_image_t *img, unsigned int file_type, 00287 y4m_input *y4m, struct detect_buffer *detect) 00288 { 00289 int plane = 0; 00290 int shortread = 0; 00291 00292 if (file_type == FILE_TYPE_Y4M) 00293 { 00294 if (y4m_input_fetch_frame(y4m, f, img) < 1) 00295 return 0; 00296 } 00297 else 00298 { 00299 if (file_type == FILE_TYPE_IVF) 00300 { 00301 char junk[IVF_FRAME_HDR_SZ]; 00302 00303 /* Skip the frame header. We know how big the frame should be. See 00304 * write_ivf_frame_header() for documentation on the frame header 00305 * layout. 00306 */ 00307 if(fread(junk, 1, IVF_FRAME_HDR_SZ, f)); 00308 } 00309 00310 for (plane = 0; plane < 3; plane++) 00311 { 00312 unsigned char *ptr; 00313 int w = (plane ? (1 + img->d_w) / 2 : img->d_w); 00314 int h = (plane ? (1 + img->d_h) / 2 : img->d_h); 00315 int r; 00316 00317 /* Determine the correct plane based on the image format. The for-loop 00318 * always counts in Y,U,V order, but this may not match the order of 00319 * the data on disk. 00320 */ 00321 switch (plane) 00322 { 00323 case 1: 00324 ptr = img->planes[img->fmt==VPX_IMG_FMT_YV12? VPX_PLANE_V : VPX_PLANE_U]; 00325 break; 00326 case 2: 00327 ptr = img->planes[img->fmt==VPX_IMG_FMT_YV12?VPX_PLANE_U : VPX_PLANE_V]; 00328 break; 00329 default: 00330 ptr = img->planes[plane]; 00331 } 00332 00333 for (r = 0; r < h; r++) 00334 { 00335 size_t needed = w; 00336 size_t buf_position = 0; 00337 const size_t left = detect->buf_read - detect->position; 00338 if (left > 0) 00339 { 00340 const size_t more = (left < needed) ? left : needed; 00341 memcpy(ptr, detect->buf + detect->position, more); 00342 buf_position = more; 00343 needed -= more; 00344 detect->position += more; 00345 } 00346 if (needed > 0) 00347 { 00348 shortread |= (fread(ptr + buf_position, 1, needed, f) < needed); 00349 } 00350 00351 ptr += img->stride[plane]; 00352 } 00353 } 00354 } 00355 00356 return !shortread; 00357 } 00358 00359 00360 unsigned int file_is_y4m(FILE *infile, 00361 y4m_input *y4m, 00362 char detect[4]) 00363 { 00364 if(memcmp(detect, "YUV4", 4) == 0) 00365 { 00366 return 1; 00367 } 00368 return 0; 00369 } 00370 00371 #define IVF_FILE_HDR_SZ (32) 00372 unsigned int file_is_ivf(FILE *infile, 00373 unsigned int *fourcc, 00374 unsigned int *width, 00375 unsigned int *height, 00376 struct detect_buffer *detect) 00377 { 00378 char raw_hdr[IVF_FILE_HDR_SZ]; 00379 int is_ivf = 0; 00380 00381 if(memcmp(detect->buf, "DKIF", 4) != 0) 00382 return 0; 00383 00384 /* See write_ivf_file_header() for more documentation on the file header 00385 * layout. 00386 */ 00387 if (fread(raw_hdr + 4, 1, IVF_FILE_HDR_SZ - 4, infile) 00388 == IVF_FILE_HDR_SZ - 4) 00389 { 00390 { 00391 is_ivf = 1; 00392 00393 if (mem_get_le16(raw_hdr + 4) != 0) 00394 fprintf(stderr, "Error: Unrecognized IVF version! This file may not" 00395 " decode properly."); 00396 00397 *fourcc = mem_get_le32(raw_hdr + 8); 00398 } 00399 } 00400 00401 if (is_ivf) 00402 { 00403 *width = mem_get_le16(raw_hdr + 12); 00404 *height = mem_get_le16(raw_hdr + 14); 00405 detect->position = 4; 00406 } 00407 00408 return is_ivf; 00409 } 00410 00411 00412 static void write_ivf_file_header(FILE *outfile, 00413 const vpx_codec_enc_cfg_t *cfg, 00414 unsigned int fourcc, 00415 int frame_cnt) 00416 { 00417 char header[32]; 00418 00419 if (cfg->g_pass != VPX_RC_ONE_PASS && cfg->g_pass != VPX_RC_LAST_PASS) 00420 return; 00421 00422 header[0] = 'D'; 00423 header[1] = 'K'; 00424 header[2] = 'I'; 00425 header[3] = 'F'; 00426 mem_put_le16(header + 4, 0); /* version */ 00427 mem_put_le16(header + 6, 32); /* headersize */ 00428 mem_put_le32(header + 8, fourcc); /* headersize */ 00429 mem_put_le16(header + 12, cfg->g_w); /* width */ 00430 mem_put_le16(header + 14, cfg->g_h); /* height */ 00431 mem_put_le32(header + 16, cfg->g_timebase.den); /* rate */ 00432 mem_put_le32(header + 20, cfg->g_timebase.num); /* scale */ 00433 mem_put_le32(header + 24, frame_cnt); /* length */ 00434 mem_put_le32(header + 28, 0); /* unused */ 00435 00436 if(fwrite(header, 1, 32, outfile)); 00437 } 00438 00439 00440 static void write_ivf_frame_header(FILE *outfile, 00441 const vpx_codec_cx_pkt_t *pkt) 00442 { 00443 char header[12]; 00444 vpx_codec_pts_t pts; 00445 00446 if (pkt->kind != VPX_CODEC_CX_FRAME_PKT) 00447 return; 00448 00449 pts = pkt->data.frame.pts; 00450 mem_put_le32(header, pkt->data.frame.sz); 00451 mem_put_le32(header + 4, pts & 0xFFFFFFFF); 00452 mem_put_le32(header + 8, pts >> 32); 00453 00454 if(fwrite(header, 1, 12, outfile)); 00455 } 00456 00457 00458 typedef off_t EbmlLoc; 00459 00460 00461 struct cue_entry 00462 { 00463 unsigned int time; 00464 uint64_t loc; 00465 }; 00466 00467 00468 struct EbmlGlobal 00469 { 00470 int debug; 00471 00472 FILE *stream; 00473 int64_t last_pts_ms; 00474 vpx_rational_t framerate; 00475 00476 /* These pointers are to the start of an element */ 00477 off_t position_reference; 00478 off_t seek_info_pos; 00479 off_t segment_info_pos; 00480 off_t track_pos; 00481 off_t cue_pos; 00482 off_t cluster_pos; 00483 00484 /* This pointer is to a specific element to be serialized */ 00485 off_t track_id_pos; 00486 00487 /* These pointers are to the size field of the element */ 00488 EbmlLoc startSegment; 00489 EbmlLoc startCluster; 00490 00491 uint32_t cluster_timecode; 00492 int cluster_open; 00493 00494 struct cue_entry *cue_list; 00495 unsigned int cues; 00496 00497 }; 00498 00499 00500 void Ebml_Write(EbmlGlobal *glob, const void *buffer_in, unsigned long len) 00501 { 00502 if(fwrite(buffer_in, 1, len, glob->stream)); 00503 } 00504 00505 #define WRITE_BUFFER(s) \ 00506 for(i = len-1; i>=0; i--)\ 00507 { \ 00508 x = *(const s *)buffer_in >> (i * CHAR_BIT); \ 00509 Ebml_Write(glob, &x, 1); \ 00510 } 00511 void Ebml_Serialize(EbmlGlobal *glob, const void *buffer_in, int buffer_size, unsigned long len) 00512 { 00513 char x; 00514 int i; 00515 00516 /* buffer_size: 00517 * 1 - int8_t; 00518 * 2 - int16_t; 00519 * 3 - int32_t; 00520 * 4 - int64_t; 00521 */ 00522 switch (buffer_size) 00523 { 00524 case 1: 00525 WRITE_BUFFER(int8_t) 00526 break; 00527 case 2: 00528 WRITE_BUFFER(int16_t) 00529 break; 00530 case 4: 00531 WRITE_BUFFER(int32_t) 00532 break; 00533 case 8: 00534 WRITE_BUFFER(int64_t) 00535 break; 00536 default: 00537 break; 00538 } 00539 } 00540 #undef WRITE_BUFFER 00541 00542 /* Need a fixed size serializer for the track ID. libmkv provides a 64 bit 00543 * one, but not a 32 bit one. 00544 */ 00545 static void Ebml_SerializeUnsigned32(EbmlGlobal *glob, unsigned long class_id, uint64_t ui) 00546 { 00547 unsigned char sizeSerialized = 4 | 0x80; 00548 Ebml_WriteID(glob, class_id); 00549 Ebml_Serialize(glob, &sizeSerialized, sizeof(sizeSerialized), 1); 00550 Ebml_Serialize(glob, &ui, sizeof(ui), 4); 00551 } 00552 00553 00554 static void 00555 Ebml_StartSubElement(EbmlGlobal *glob, EbmlLoc *ebmlLoc, 00556 unsigned long class_id) 00557 { 00558 //todo this is always taking 8 bytes, this may need later optimization 00559 //this is a key that says length unknown 00560 uint64_t unknownLen = LITERALU64(0x01FFFFFFFFFFFFFF); 00561 00562 Ebml_WriteID(glob, class_id); 00563 *ebmlLoc = ftello(glob->stream); 00564 Ebml_Serialize(glob, &unknownLen, sizeof(unknownLen), 8); 00565 } 00566 00567 static void 00568 Ebml_EndSubElement(EbmlGlobal *glob, EbmlLoc *ebmlLoc) 00569 { 00570 off_t pos; 00571 uint64_t size; 00572 00573 /* Save the current stream pointer */ 00574 pos = ftello(glob->stream); 00575 00576 /* Calculate the size of this element */ 00577 size = pos - *ebmlLoc - 8; 00578 size |= LITERALU64(0x0100000000000000); 00579 00580 /* Seek back to the beginning of the element and write the new size */ 00581 fseeko(glob->stream, *ebmlLoc, SEEK_SET); 00582 Ebml_Serialize(glob, &size, sizeof(size), 8); 00583 00584 /* Reset the stream pointer */ 00585 fseeko(glob->stream, pos, SEEK_SET); 00586 } 00587 00588 00589 static void 00590 write_webm_seek_element(EbmlGlobal *ebml, unsigned long id, off_t pos) 00591 { 00592 uint64_t offset = pos - ebml->position_reference; 00593 EbmlLoc start; 00594 Ebml_StartSubElement(ebml, &start, Seek); 00595 Ebml_SerializeBinary(ebml, SeekID, id); 00596 Ebml_SerializeUnsigned64(ebml, SeekPosition, offset); 00597 Ebml_EndSubElement(ebml, &start); 00598 } 00599 00600 00601 static void 00602 write_webm_seek_info(EbmlGlobal *ebml) 00603 { 00604 00605 off_t pos; 00606 00607 /* Save the current stream pointer */ 00608 pos = ftello(ebml->stream); 00609 00610 if(ebml->seek_info_pos) 00611 fseeko(ebml->stream, ebml->seek_info_pos, SEEK_SET); 00612 else 00613 ebml->seek_info_pos = pos; 00614 00615 { 00616 EbmlLoc start; 00617 00618 Ebml_StartSubElement(ebml, &start, SeekHead); 00619 write_webm_seek_element(ebml, Tracks, ebml->track_pos); 00620 write_webm_seek_element(ebml, Cues, ebml->cue_pos); 00621 write_webm_seek_element(ebml, Info, ebml->segment_info_pos); 00622 Ebml_EndSubElement(ebml, &start); 00623 } 00624 { 00625 //segment info 00626 EbmlLoc startInfo; 00627 uint64_t frame_time; 00628 char version_string[64]; 00629 00630 /* Assemble version string */ 00631 if(ebml->debug) 00632 strcpy(version_string, "vpxenc"); 00633 else 00634 { 00635 strcpy(version_string, "vpxenc "); 00636 strncat(version_string, 00637 vpx_codec_version_str(), 00638 sizeof(version_string) - 1 - strlen(version_string)); 00639 } 00640 00641 frame_time = (uint64_t)1000 * ebml->framerate.den 00642 / ebml->framerate.num; 00643 ebml->segment_info_pos = ftello(ebml->stream); 00644 Ebml_StartSubElement(ebml, &startInfo, Info); 00645 Ebml_SerializeUnsigned(ebml, TimecodeScale, 1000000); 00646 Ebml_SerializeFloat(ebml, Segment_Duration, 00647 ebml->last_pts_ms + frame_time); 00648 Ebml_SerializeString(ebml, 0x4D80, version_string); 00649 Ebml_SerializeString(ebml, 0x5741, version_string); 00650 Ebml_EndSubElement(ebml, &startInfo); 00651 } 00652 } 00653 00654 00655 static void 00656 write_webm_file_header(EbmlGlobal *glob, 00657 const vpx_codec_enc_cfg_t *cfg, 00658 const struct vpx_rational *fps, 00659 stereo_format_t stereo_fmt) 00660 { 00661 { 00662 EbmlLoc start; 00663 Ebml_StartSubElement(glob, &start, EBML); 00664 Ebml_SerializeUnsigned(glob, EBMLVersion, 1); 00665 Ebml_SerializeUnsigned(glob, EBMLReadVersion, 1); //EBML Read Version 00666 Ebml_SerializeUnsigned(glob, EBMLMaxIDLength, 4); //EBML Max ID Length 00667 Ebml_SerializeUnsigned(glob, EBMLMaxSizeLength, 8); //EBML Max Size Length 00668 Ebml_SerializeString(glob, DocType, "webm"); //Doc Type 00669 Ebml_SerializeUnsigned(glob, DocTypeVersion, 2); //Doc Type Version 00670 Ebml_SerializeUnsigned(glob, DocTypeReadVersion, 2); //Doc Type Read Version 00671 Ebml_EndSubElement(glob, &start); 00672 } 00673 { 00674 Ebml_StartSubElement(glob, &glob->startSegment, Segment); //segment 00675 glob->position_reference = ftello(glob->stream); 00676 glob->framerate = *fps; 00677 write_webm_seek_info(glob); 00678 00679 { 00680 EbmlLoc trackStart; 00681 glob->track_pos = ftello(glob->stream); 00682 Ebml_StartSubElement(glob, &trackStart, Tracks); 00683 { 00684 unsigned int trackNumber = 1; 00685 uint64_t trackID = 0; 00686 00687 EbmlLoc start; 00688 Ebml_StartSubElement(glob, &start, TrackEntry); 00689 Ebml_SerializeUnsigned(glob, TrackNumber, trackNumber); 00690 glob->track_id_pos = ftello(glob->stream); 00691 Ebml_SerializeUnsigned32(glob, TrackUID, trackID); 00692 Ebml_SerializeUnsigned(glob, TrackType, 1); //video is always 1 00693 Ebml_SerializeString(glob, CodecID, "V_VP8"); 00694 { 00695 unsigned int pixelWidth = cfg->g_w; 00696 unsigned int pixelHeight = cfg->g_h; 00697 float frameRate = (float)fps->num/(float)fps->den; 00698 00699 EbmlLoc videoStart; 00700 Ebml_StartSubElement(glob, &videoStart, Video); 00701 Ebml_SerializeUnsigned(glob, PixelWidth, pixelWidth); 00702 Ebml_SerializeUnsigned(glob, PixelHeight, pixelHeight); 00703 Ebml_SerializeUnsigned(glob, StereoMode, stereo_fmt); 00704 Ebml_SerializeFloat(glob, FrameRate, frameRate); 00705 Ebml_EndSubElement(glob, &videoStart); //Video 00706 } 00707 Ebml_EndSubElement(glob, &start); //Track Entry 00708 } 00709 Ebml_EndSubElement(glob, &trackStart); 00710 } 00711 // segment element is open 00712 } 00713 } 00714 00715 00716 static void 00717 write_webm_block(EbmlGlobal *glob, 00718 const vpx_codec_enc_cfg_t *cfg, 00719 const vpx_codec_cx_pkt_t *pkt) 00720 { 00721 unsigned long block_length; 00722 unsigned char track_number; 00723 unsigned short block_timecode = 0; 00724 unsigned char flags; 00725 int64_t pts_ms; 00726 int start_cluster = 0, is_keyframe; 00727 00728 /* Calculate the PTS of this frame in milliseconds */ 00729 pts_ms = pkt->data.frame.pts * 1000 00730 * (uint64_t)cfg->g_timebase.num / (uint64_t)cfg->g_timebase.den; 00731 if(pts_ms <= glob->last_pts_ms) 00732 pts_ms = glob->last_pts_ms + 1; 00733 glob->last_pts_ms = pts_ms; 00734 00735 /* Calculate the relative time of this block */ 00736 if(pts_ms - glob->cluster_timecode > SHRT_MAX) 00737 start_cluster = 1; 00738 else 00739 block_timecode = pts_ms - glob->cluster_timecode; 00740 00741 is_keyframe = (pkt->data.frame.flags & VPX_FRAME_IS_KEY); 00742 if(start_cluster || is_keyframe) 00743 { 00744 if(glob->cluster_open) 00745 Ebml_EndSubElement(glob, &glob->startCluster); 00746 00747 /* Open the new cluster */ 00748 block_timecode = 0; 00749 glob->cluster_open = 1; 00750 glob->cluster_timecode = pts_ms; 00751 glob->cluster_pos = ftello(glob->stream); 00752 Ebml_StartSubElement(glob, &glob->startCluster, Cluster); //cluster 00753 Ebml_SerializeUnsigned(glob, Timecode, glob->cluster_timecode); 00754 00755 /* Save a cue point if this is a keyframe. */ 00756 if(is_keyframe) 00757 { 00758 struct cue_entry *cue, *new_cue_list; 00759 00760 new_cue_list = realloc(glob->cue_list, 00761 (glob->cues+1) * sizeof(struct cue_entry)); 00762 if(new_cue_list) 00763 glob->cue_list = new_cue_list; 00764 else 00765 { 00766 fprintf(stderr, "\nFailed to realloc cue list.\n"); 00767 exit(EXIT_FAILURE); 00768 } 00769 00770 cue = &glob->cue_list[glob->cues]; 00771 cue->time = glob->cluster_timecode; 00772 cue->loc = glob->cluster_pos; 00773 glob->cues++; 00774 } 00775 } 00776 00777 /* Write the Simple Block */ 00778 Ebml_WriteID(glob, SimpleBlock); 00779 00780 block_length = pkt->data.frame.sz + 4; 00781 block_length |= 0x10000000; 00782 Ebml_Serialize(glob, &block_length, sizeof(block_length), 4); 00783 00784 track_number = 1; 00785 track_number |= 0x80; 00786 Ebml_Write(glob, &track_number, 1); 00787 00788 Ebml_Serialize(glob, &block_timecode, sizeof(block_timecode), 2); 00789 00790 flags = 0; 00791 if(is_keyframe) 00792 flags |= 0x80; 00793 if(pkt->data.frame.flags & VPX_FRAME_IS_INVISIBLE) 00794 flags |= 0x08; 00795 Ebml_Write(glob, &flags, 1); 00796 00797 Ebml_Write(glob, pkt->data.frame.buf, pkt->data.frame.sz); 00798 } 00799 00800 00801 static void 00802 write_webm_file_footer(EbmlGlobal *glob, long hash) 00803 { 00804 00805 if(glob->cluster_open) 00806 Ebml_EndSubElement(glob, &glob->startCluster); 00807 00808 { 00809 EbmlLoc start; 00810 unsigned int i; 00811 00812 glob->cue_pos = ftello(glob->stream); 00813 Ebml_StartSubElement(glob, &start, Cues); 00814 for(i=0; i<glob->cues; i++) 00815 { 00816 struct cue_entry *cue = &glob->cue_list[i]; 00817 EbmlLoc start; 00818 00819 Ebml_StartSubElement(glob, &start, CuePoint); 00820 { 00821 EbmlLoc start; 00822 00823 Ebml_SerializeUnsigned(glob, CueTime, cue->time); 00824 00825 Ebml_StartSubElement(glob, &start, CueTrackPositions); 00826 Ebml_SerializeUnsigned(glob, CueTrack, 1); 00827 Ebml_SerializeUnsigned64(glob, CueClusterPosition, 00828 cue->loc - glob->position_reference); 00829 //Ebml_SerializeUnsigned(glob, CueBlockNumber, cue->blockNumber); 00830 Ebml_EndSubElement(glob, &start); 00831 } 00832 Ebml_EndSubElement(glob, &start); 00833 } 00834 Ebml_EndSubElement(glob, &start); 00835 } 00836 00837 Ebml_EndSubElement(glob, &glob->startSegment); 00838 00839 /* Patch up the seek info block */ 00840 write_webm_seek_info(glob); 00841 00842 /* Patch up the track id */ 00843 fseeko(glob->stream, glob->track_id_pos, SEEK_SET); 00844 Ebml_SerializeUnsigned32(glob, TrackUID, glob->debug ? 0xDEADBEEF : hash); 00845 00846 fseeko(glob->stream, 0, SEEK_END); 00847 } 00848 00849 00850 /* Murmur hash derived from public domain reference implementation at 00851 * http://sites.google.com/site/murmurhash/ 00852 */ 00853 static unsigned int murmur ( const void * key, int len, unsigned int seed ) 00854 { 00855 const unsigned int m = 0x5bd1e995; 00856 const int r = 24; 00857 00858 unsigned int h = seed ^ len; 00859 00860 const unsigned char * data = (const unsigned char *)key; 00861 00862 while(len >= 4) 00863 { 00864 unsigned int k; 00865 00866 k = data[0]; 00867 k |= data[1] << 8; 00868 k |= data[2] << 16; 00869 k |= data[3] << 24; 00870 00871 k *= m; 00872 k ^= k >> r; 00873 k *= m; 00874 00875 h *= m; 00876 h ^= k; 00877 00878 data += 4; 00879 len -= 4; 00880 } 00881 00882 switch(len) 00883 { 00884 case 3: h ^= data[2] << 16; 00885 case 2: h ^= data[1] << 8; 00886 case 1: h ^= data[0]; 00887 h *= m; 00888 }; 00889 00890 h ^= h >> 13; 00891 h *= m; 00892 h ^= h >> 15; 00893 00894 return h; 00895 } 00896 00897 #include "math.h" 00898 00899 static double vp8_mse2psnr(double Samples, double Peak, double Mse) 00900 { 00901 double psnr; 00902 00903 if ((double)Mse > 0.0) 00904 psnr = 10.0 * log10(Peak * Peak * Samples / Mse); 00905 else 00906 psnr = 60; // Limit to prevent / 0 00907 00908 if (psnr > 60) 00909 psnr = 60; 00910 00911 return psnr; 00912 } 00913 00914 00915 #include "args.h" 00916 00917 static const arg_def_t debugmode = ARG_DEF("D", "debug", 0, 00918 "Debug mode (makes output deterministic)"); 00919 static const arg_def_t outputfile = ARG_DEF("o", "output", 1, 00920 "Output filename"); 00921 static const arg_def_t use_yv12 = ARG_DEF(NULL, "yv12", 0, 00922 "Input file is YV12 "); 00923 static const arg_def_t use_i420 = ARG_DEF(NULL, "i420", 0, 00924 "Input file is I420 (default)"); 00925 static const arg_def_t codecarg = ARG_DEF(NULL, "codec", 1, 00926 "Codec to use"); 00927 static const arg_def_t passes = ARG_DEF("p", "passes", 1, 00928 "Number of passes (1/2)"); 00929 static const arg_def_t pass_arg = ARG_DEF(NULL, "pass", 1, 00930 "Pass to execute (1/2)"); 00931 static const arg_def_t fpf_name = ARG_DEF(NULL, "fpf", 1, 00932 "First pass statistics file name"); 00933 static const arg_def_t limit = ARG_DEF(NULL, "limit", 1, 00934 "Stop encoding after n input frames"); 00935 static const arg_def_t deadline = ARG_DEF("d", "deadline", 1, 00936 "Deadline per frame (usec)"); 00937 static const arg_def_t best_dl = ARG_DEF(NULL, "best", 0, 00938 "Use Best Quality Deadline"); 00939 static const arg_def_t good_dl = ARG_DEF(NULL, "good", 0, 00940 "Use Good Quality Deadline"); 00941 static const arg_def_t rt_dl = ARG_DEF(NULL, "rt", 0, 00942 "Use Realtime Quality Deadline"); 00943 static const arg_def_t verbosearg = ARG_DEF("v", "verbose", 0, 00944 "Show encoder parameters"); 00945 static const arg_def_t psnrarg = ARG_DEF(NULL, "psnr", 0, 00946 "Show PSNR in status line"); 00947 static const arg_def_t framerate = ARG_DEF(NULL, "fps", 1, 00948 "Stream frame rate (rate/scale)"); 00949 static const arg_def_t use_ivf = ARG_DEF(NULL, "ivf", 0, 00950 "Output IVF (default is WebM)"); 00951 static const arg_def_t q_hist_n = ARG_DEF(NULL, "q-hist", 1, 00952 "Show quantizer histogram (n-buckets)"); 00953 static const arg_def_t rate_hist_n = ARG_DEF(NULL, "rate-hist", 1, 00954 "Show rate histogram (n-buckets)"); 00955 static const arg_def_t *main_args[] = 00956 { 00957 &debugmode, 00958 &outputfile, &codecarg, &passes, &pass_arg, &fpf_name, &limit, &deadline, 00959 &best_dl, &good_dl, &rt_dl, 00960 &verbosearg, &psnrarg, &use_ivf, &q_hist_n, &rate_hist_n, 00961 NULL 00962 }; 00963 00964 static const arg_def_t usage = ARG_DEF("u", "usage", 1, 00965 "Usage profile number to use"); 00966 static const arg_def_t threads = ARG_DEF("t", "threads", 1, 00967 "Max number of threads to use"); 00968 static const arg_def_t profile = ARG_DEF(NULL, "profile", 1, 00969 "Bitstream profile number to use"); 00970 static const arg_def_t width = ARG_DEF("w", "width", 1, 00971 "Frame width"); 00972 static const arg_def_t height = ARG_DEF("h", "height", 1, 00973 "Frame height"); 00974 static const struct arg_enum_list stereo_mode_enum[] = { 00975 {"mono" , STEREO_FORMAT_MONO}, 00976 {"left-right", STEREO_FORMAT_LEFT_RIGHT}, 00977 {"bottom-top", STEREO_FORMAT_BOTTOM_TOP}, 00978 {"top-bottom", STEREO_FORMAT_TOP_BOTTOM}, 00979 {"right-left", STEREO_FORMAT_RIGHT_LEFT}, 00980 {NULL, 0} 00981 }; 00982 static const arg_def_t stereo_mode = ARG_DEF_ENUM(NULL, "stereo-mode", 1, 00983 "Stereo 3D video format", stereo_mode_enum); 00984 static const arg_def_t timebase = ARG_DEF(NULL, "timebase", 1, 00985 "Output timestamp precision (fractional seconds)"); 00986 static const arg_def_t error_resilient = ARG_DEF(NULL, "error-resilient", 1, 00987 "Enable error resiliency features"); 00988 static const arg_def_t lag_in_frames = ARG_DEF(NULL, "lag-in-frames", 1, 00989 "Max number of frames to lag"); 00990 00991 static const arg_def_t *global_args[] = 00992 { 00993 &use_yv12, &use_i420, &usage, &threads, &profile, 00994 &width, &height, &stereo_mode, &timebase, &framerate, &error_resilient, 00995 &lag_in_frames, NULL 00996 }; 00997 00998 static const arg_def_t dropframe_thresh = ARG_DEF(NULL, "drop-frame", 1, 00999 "Temporal resampling threshold (buf %)"); 01000 static const arg_def_t resize_allowed = ARG_DEF(NULL, "resize-allowed", 1, 01001 "Spatial resampling enabled (bool)"); 01002 static const arg_def_t resize_up_thresh = ARG_DEF(NULL, "resize-up", 1, 01003 "Upscale threshold (buf %)"); 01004 static const arg_def_t resize_down_thresh = ARG_DEF(NULL, "resize-down", 1, 01005 "Downscale threshold (buf %)"); 01006 static const struct arg_enum_list end_usage_enum[] = { 01007 {"vbr", VPX_VBR}, 01008 {"cbr", VPX_CBR}, 01009 {"cq", VPX_CQ}, 01010 {NULL, 0} 01011 }; 01012 static const arg_def_t end_usage = ARG_DEF_ENUM(NULL, "end-usage", 1, 01013 "Rate control mode", end_usage_enum); 01014 static const arg_def_t target_bitrate = ARG_DEF(NULL, "target-bitrate", 1, 01015 "Bitrate (kbps)"); 01016 static const arg_def_t min_quantizer = ARG_DEF(NULL, "min-q", 1, 01017 "Minimum (best) quantizer"); 01018 static const arg_def_t max_quantizer = ARG_DEF(NULL, "max-q", 1, 01019 "Maximum (worst) quantizer"); 01020 static const arg_def_t undershoot_pct = ARG_DEF(NULL, "undershoot-pct", 1, 01021 "Datarate undershoot (min) target (%)"); 01022 static const arg_def_t overshoot_pct = ARG_DEF(NULL, "overshoot-pct", 1, 01023 "Datarate overshoot (max) target (%)"); 01024 static const arg_def_t buf_sz = ARG_DEF(NULL, "buf-sz", 1, 01025 "Client buffer size (ms)"); 01026 static const arg_def_t buf_initial_sz = ARG_DEF(NULL, "buf-initial-sz", 1, 01027 "Client initial buffer size (ms)"); 01028 static const arg_def_t buf_optimal_sz = ARG_DEF(NULL, "buf-optimal-sz", 1, 01029 "Client optimal buffer size (ms)"); 01030 static const arg_def_t *rc_args[] = 01031 { 01032 &dropframe_thresh, &resize_allowed, &resize_up_thresh, &resize_down_thresh, 01033 &end_usage, &target_bitrate, &min_quantizer, &max_quantizer, 01034 &undershoot_pct, &overshoot_pct, &buf_sz, &buf_initial_sz, &buf_optimal_sz, 01035 NULL 01036 }; 01037 01038 01039 static const arg_def_t bias_pct = ARG_DEF(NULL, "bias-pct", 1, 01040 "CBR/VBR bias (0=CBR, 100=VBR)"); 01041 static const arg_def_t minsection_pct = ARG_DEF(NULL, "minsection-pct", 1, 01042 "GOP min bitrate (% of target)"); 01043 static const arg_def_t maxsection_pct = ARG_DEF(NULL, "maxsection-pct", 1, 01044 "GOP max bitrate (% of target)"); 01045 static const arg_def_t *rc_twopass_args[] = 01046 { 01047 &bias_pct, &minsection_pct, &maxsection_pct, NULL 01048 }; 01049 01050 01051 static const arg_def_t kf_min_dist = ARG_DEF(NULL, "kf-min-dist", 1, 01052 "Minimum keyframe interval (frames)"); 01053 static const arg_def_t kf_max_dist = ARG_DEF(NULL, "kf-max-dist", 1, 01054 "Maximum keyframe interval (frames)"); 01055 static const arg_def_t kf_disabled = ARG_DEF(NULL, "disable-kf", 0, 01056 "Disable keyframe placement"); 01057 static const arg_def_t *kf_args[] = 01058 { 01059 &kf_min_dist, &kf_max_dist, &kf_disabled, NULL 01060 }; 01061 01062 01063 #if CONFIG_VP8_ENCODER 01064 static const arg_def_t noise_sens = ARG_DEF(NULL, "noise-sensitivity", 1, 01065 "Noise sensitivity (frames to blur)"); 01066 static const arg_def_t sharpness = ARG_DEF(NULL, "sharpness", 1, 01067 "Filter sharpness (0-7)"); 01068 static const arg_def_t static_thresh = ARG_DEF(NULL, "static-thresh", 1, 01069 "Motion detection threshold"); 01070 #endif 01071 01072 #if CONFIG_VP8_ENCODER 01073 static const arg_def_t cpu_used = ARG_DEF(NULL, "cpu-used", 1, 01074 "CPU Used (-16..16)"); 01075 #endif 01076 01077 01078 #if CONFIG_VP8_ENCODER 01079 static const arg_def_t token_parts = ARG_DEF(NULL, "token-parts", 1, 01080 "Number of token partitions to use, log2"); 01081 static const arg_def_t auto_altref = ARG_DEF(NULL, "auto-alt-ref", 1, 01082 "Enable automatic alt reference frames"); 01083 static const arg_def_t arnr_maxframes = ARG_DEF(NULL, "arnr-maxframes", 1, 01084 "AltRef Max Frames"); 01085 static const arg_def_t arnr_strength = ARG_DEF(NULL, "arnr-strength", 1, 01086 "AltRef Strength"); 01087 static const arg_def_t arnr_type = ARG_DEF(NULL, "arnr-type", 1, 01088 "AltRef Type"); 01089 static const struct arg_enum_list tuning_enum[] = { 01090 {"psnr", VP8_TUNE_PSNR}, 01091 {"ssim", VP8_TUNE_SSIM}, 01092 {NULL, 0} 01093 }; 01094 static const arg_def_t tune_ssim = ARG_DEF_ENUM(NULL, "tune", 1, 01095 "Material to favor", tuning_enum); 01096 static const arg_def_t cq_level = ARG_DEF(NULL, "cq-level", 1, 01097 "Constrained Quality Level"); 01098 static const arg_def_t max_intra_rate_pct = ARG_DEF(NULL, "max-intra-rate", 1, 01099 "Max I-frame bitrate (pct)"); 01100 01101 static const arg_def_t *vp8_args[] = 01102 { 01103 &cpu_used, &auto_altref, &noise_sens, &sharpness, &static_thresh, 01104 &token_parts, &arnr_maxframes, &arnr_strength, &arnr_type, 01105 &tune_ssim, &cq_level, &max_intra_rate_pct, NULL 01106 }; 01107 static const int vp8_arg_ctrl_map[] = 01108 { 01109 VP8E_SET_CPUUSED, VP8E_SET_ENABLEAUTOALTREF, 01110 VP8E_SET_NOISE_SENSITIVITY, VP8E_SET_SHARPNESS, VP8E_SET_STATIC_THRESHOLD, 01111 VP8E_SET_TOKEN_PARTITIONS, 01112 VP8E_SET_ARNR_MAXFRAMES, VP8E_SET_ARNR_STRENGTH , VP8E_SET_ARNR_TYPE, 01113 VP8E_SET_TUNING, VP8E_SET_CQ_LEVEL, VP8E_SET_MAX_INTRA_BITRATE_PCT, 0 01114 }; 01115 #endif 01116 01117 static const arg_def_t *no_args[] = { NULL }; 01118 01119 static void usage_exit() 01120 { 01121 int i; 01122 01123 fprintf(stderr, "Usage: %s <options> -o dst_filename src_filename \n", 01124 exec_name); 01125 01126 fprintf(stderr, "\nOptions:\n"); 01127 arg_show_usage(stdout, main_args); 01128 fprintf(stderr, "\nEncoder Global Options:\n"); 01129 arg_show_usage(stdout, global_args); 01130 fprintf(stderr, "\nRate Control Options:\n"); 01131 arg_show_usage(stdout, rc_args); 01132 fprintf(stderr, "\nTwopass Rate Control Options:\n"); 01133 arg_show_usage(stdout, rc_twopass_args); 01134 fprintf(stderr, "\nKeyframe Placement Options:\n"); 01135 arg_show_usage(stdout, kf_args); 01136 #if CONFIG_VP8_ENCODER 01137 fprintf(stderr, "\nVP8 Specific Options:\n"); 01138 arg_show_usage(stdout, vp8_args); 01139 #endif 01140 fprintf(stderr, "\nStream timebase (--timebase):\n" 01141 " The desired precision of timestamps in the output, expressed\n" 01142 " in fractional seconds. Default is 1/1000.\n"); 01143 fprintf(stderr, "\n" 01144 "Included encoders:\n" 01145 "\n"); 01146 01147 for (i = 0; i < sizeof(codecs) / sizeof(codecs[0]); i++) 01148 fprintf(stderr, " %-6s - %s\n", 01149 codecs[i].name, 01150 vpx_codec_iface_name(codecs[i].iface)); 01151 01152 exit(EXIT_FAILURE); 01153 } 01154 01155 01156 #define HIST_BAR_MAX 40 01157 struct hist_bucket 01158 { 01159 int low, high, count; 01160 }; 01161 01162 01163 static int merge_hist_buckets(struct hist_bucket *bucket, 01164 int *buckets_, 01165 int max_buckets) 01166 { 01167 int small_bucket = 0, merge_bucket = INT_MAX, big_bucket=0; 01168 int buckets = *buckets_; 01169 int i; 01170 01171 /* Find the extrema for this list of buckets */ 01172 big_bucket = small_bucket = 0; 01173 for(i=0; i < buckets; i++) 01174 { 01175 if(bucket[i].count < bucket[small_bucket].count) 01176 small_bucket = i; 01177 if(bucket[i].count > bucket[big_bucket].count) 01178 big_bucket = i; 01179 } 01180 01181 /* If we have too many buckets, merge the smallest with an adjacent 01182 * bucket. 01183 */ 01184 while(buckets > max_buckets) 01185 { 01186 int last_bucket = buckets - 1; 01187 01188 // merge the small bucket with an adjacent one. 01189 if(small_bucket == 0) 01190 merge_bucket = 1; 01191 else if(small_bucket == last_bucket) 01192 merge_bucket = last_bucket - 1; 01193 else if(bucket[small_bucket - 1].count < bucket[small_bucket + 1].count) 01194 merge_bucket = small_bucket - 1; 01195 else 01196 merge_bucket = small_bucket + 1; 01197 01198 assert(abs(merge_bucket - small_bucket) <= 1); 01199 assert(small_bucket < buckets); 01200 assert(big_bucket < buckets); 01201 assert(merge_bucket < buckets); 01202 01203 if(merge_bucket < small_bucket) 01204 { 01205 bucket[merge_bucket].high = bucket[small_bucket].high; 01206 bucket[merge_bucket].count += bucket[small_bucket].count; 01207 } 01208 else 01209 { 01210 bucket[small_bucket].high = bucket[merge_bucket].high; 01211 bucket[small_bucket].count += bucket[merge_bucket].count; 01212 merge_bucket = small_bucket; 01213 } 01214 01215 assert(bucket[merge_bucket].low != bucket[merge_bucket].high); 01216 01217 buckets--; 01218 01219 /* Remove the merge_bucket from the list, and find the new small 01220 * and big buckets while we're at it 01221 */ 01222 big_bucket = small_bucket = 0; 01223 for(i=0; i < buckets; i++) 01224 { 01225 if(i > merge_bucket) 01226 bucket[i] = bucket[i+1]; 01227 01228 if(bucket[i].count < bucket[small_bucket].count) 01229 small_bucket = i; 01230 if(bucket[i].count > bucket[big_bucket].count) 01231 big_bucket = i; 01232 } 01233 01234 } 01235 01236 *buckets_ = buckets; 01237 return bucket[big_bucket].count; 01238 } 01239 01240 01241 static void show_histogram(const struct hist_bucket *bucket, 01242 int buckets, 01243 int total, 01244 int scale) 01245 { 01246 const char *pat1, *pat2; 01247 int i; 01248 01249 switch((int)(log(bucket[buckets-1].high)/log(10))+1) 01250 { 01251 case 1: 01252 case 2: 01253 pat1 = "%4d %2s: "; 01254 pat2 = "%4d-%2d: "; 01255 break; 01256 case 3: 01257 pat1 = "%5d %3s: "; 01258 pat2 = "%5d-%3d: "; 01259 break; 01260 case 4: 01261 pat1 = "%6d %4s: "; 01262 pat2 = "%6d-%4d: "; 01263 break; 01264 case 5: 01265 pat1 = "%7d %5s: "; 01266 pat2 = "%7d-%5d: "; 01267 break; 01268 case 6: 01269 pat1 = "%8d %6s: "; 01270 pat2 = "%8d-%6d: "; 01271 break; 01272 case 7: 01273 pat1 = "%9d %7s: "; 01274 pat2 = "%9d-%7d: "; 01275 break; 01276 default: 01277 pat1 = "%12d %10s: "; 01278 pat2 = "%12d-%10d: "; 01279 break; 01280 } 01281 01282 for(i=0; i<buckets; i++) 01283 { 01284 int len; 01285 int j; 01286 float pct; 01287 01288 pct = 100.0 * (float)bucket[i].count / (float)total; 01289 len = HIST_BAR_MAX * bucket[i].count / scale; 01290 if(len < 1) 01291 len = 1; 01292 assert(len <= HIST_BAR_MAX); 01293 01294 if(bucket[i].low == bucket[i].high) 01295 fprintf(stderr, pat1, bucket[i].low, ""); 01296 else 01297 fprintf(stderr, pat2, bucket[i].low, bucket[i].high); 01298 01299 for(j=0; j<HIST_BAR_MAX; j++) 01300 fprintf(stderr, j<len?"=":" "); 01301 fprintf(stderr, "\t%5d (%6.2f%%)\n",bucket[i].count,pct); 01302 } 01303 } 01304 01305 01306 static void show_q_histogram(const int counts[64], int max_buckets) 01307 { 01308 struct hist_bucket bucket[64]; 01309 int buckets = 0; 01310 int total = 0; 01311 int scale; 01312 int i; 01313 01314 01315 for(i=0; i<64; i++) 01316 { 01317 if(counts[i]) 01318 { 01319 bucket[buckets].low = bucket[buckets].high = i; 01320 bucket[buckets].count = counts[i]; 01321 buckets++; 01322 total += counts[i]; 01323 } 01324 } 01325 01326 fprintf(stderr, "\nQuantizer Selection:\n"); 01327 scale = merge_hist_buckets(bucket, &buckets, max_buckets); 01328 show_histogram(bucket, buckets, total, scale); 01329 } 01330 01331 01332 #define RATE_BINS (100) 01333 struct rate_hist 01334 { 01335 int64_t *pts; 01336 int *sz; 01337 int samples; 01338 int frames; 01339 struct hist_bucket bucket[RATE_BINS]; 01340 int total; 01341 }; 01342 01343 01344 static void init_rate_histogram(struct rate_hist *hist, 01345 const vpx_codec_enc_cfg_t *cfg, 01346 const vpx_rational_t *fps) 01347 { 01348 int i; 01349 01350 /* Determine the number of samples in the buffer. Use the file's framerate 01351 * to determine the number of frames in rc_buf_sz milliseconds, with an 01352 * adjustment (5/4) to account for alt-refs 01353 */ 01354 hist->samples = cfg->rc_buf_sz * 5 / 4 * fps->num / fps->den / 1000; 01355 01356 // prevent division by zero 01357 if (hist->samples == 0) 01358 hist->samples=1; 01359 01360 hist->pts = calloc(hist->samples, sizeof(*hist->pts)); 01361 hist->sz = calloc(hist->samples, sizeof(*hist->sz)); 01362 for(i=0; i<RATE_BINS; i++) 01363 { 01364 hist->bucket[i].low = INT_MAX; 01365 hist->bucket[i].high = 0; 01366 hist->bucket[i].count = 0; 01367 } 01368 } 01369 01370 01371 static void destroy_rate_histogram(struct rate_hist *hist) 01372 { 01373 free(hist->pts); 01374 free(hist->sz); 01375 } 01376 01377 01378 static void update_rate_histogram(struct rate_hist *hist, 01379 const vpx_codec_enc_cfg_t *cfg, 01380 const vpx_codec_cx_pkt_t *pkt) 01381 { 01382 int i, idx; 01383 int64_t now, then, sum_sz = 0, avg_bitrate; 01384 01385 now = pkt->data.frame.pts * 1000 01386 * (uint64_t)cfg->g_timebase.num / (uint64_t)cfg->g_timebase.den; 01387 01388 idx = hist->frames++ % hist->samples; 01389 hist->pts[idx] = now; 01390 hist->sz[idx] = pkt->data.frame.sz; 01391 01392 if(now < cfg->rc_buf_initial_sz) 01393 return; 01394 01395 then = now; 01396 01397 /* Sum the size over the past rc_buf_sz ms */ 01398 for(i = hist->frames; i > 0 && hist->frames - i < hist->samples; i--) 01399 { 01400 int i_idx = (i-1) % hist->samples; 01401 01402 then = hist->pts[i_idx]; 01403 if(now - then > cfg->rc_buf_sz) 01404 break; 01405 sum_sz += hist->sz[i_idx]; 01406 } 01407 01408 if (now == then) 01409 return; 01410 01411 avg_bitrate = sum_sz * 8 * 1000 / (now - then); 01412 idx = avg_bitrate * (RATE_BINS/2) / (cfg->rc_target_bitrate * 1000); 01413 if(idx < 0) 01414 idx = 0; 01415 if(idx > RATE_BINS-1) 01416 idx = RATE_BINS-1; 01417 if(hist->bucket[idx].low > avg_bitrate) 01418 hist->bucket[idx].low = avg_bitrate; 01419 if(hist->bucket[idx].high < avg_bitrate) 01420 hist->bucket[idx].high = avg_bitrate; 01421 hist->bucket[idx].count++; 01422 hist->total++; 01423 } 01424 01425 01426 static void show_rate_histogram(struct rate_hist *hist, 01427 const vpx_codec_enc_cfg_t *cfg, 01428 int max_buckets) 01429 { 01430 int i, scale; 01431 int buckets = 0; 01432 01433 for(i = 0; i < RATE_BINS; i++) 01434 { 01435 if(hist->bucket[i].low == INT_MAX) 01436 continue; 01437 hist->bucket[buckets++] = hist->bucket[i]; 01438 } 01439 01440 fprintf(stderr, "\nRate (over %dms window):\n", cfg->rc_buf_sz); 01441 scale = merge_hist_buckets(hist->bucket, &buckets, max_buckets); 01442 show_histogram(hist->bucket, buckets, hist->total, scale); 01443 } 01444 01445 #define NELEMENTS(x) (sizeof(x)/sizeof(x[0])) 01446 #define ARG_CTRL_CNT_MAX NELEMENTS(vp8_arg_ctrl_map) 01447 01448 int main(int argc, const char **argv_) 01449 { 01450 vpx_codec_ctx_t encoder; 01451 const char *in_fn = NULL, *out_fn = NULL, *stats_fn = NULL; 01452 int i; 01453 FILE *infile, *outfile; 01454 vpx_codec_enc_cfg_t cfg; 01455 vpx_codec_err_t res; 01456 int pass, one_pass_only = 0; 01457 stats_io_t stats; 01458 vpx_image_t raw; 01459 const struct codec_item *codec = codecs; 01460 int frame_avail, got_data; 01461 01462 struct arg arg; 01463 char **argv, **argi, **argj; 01464 int arg_usage = 0, arg_passes = 1, arg_deadline = 0; 01465 int arg_ctrls[ARG_CTRL_CNT_MAX][2], arg_ctrl_cnt = 0; 01466 int arg_limit = 0; 01467 static const arg_def_t **ctrl_args = no_args; 01468 static const int *ctrl_args_map = NULL; 01469 int verbose = 0, show_psnr = 0; 01470 int arg_use_i420 = 1; 01471 unsigned long cx_time = 0; 01472 unsigned int file_type, fourcc; 01473 y4m_input y4m; 01474 struct vpx_rational arg_framerate = {30, 1}; 01475 int arg_have_framerate = 0; 01476 int write_webm = 1; 01477 EbmlGlobal ebml = {0}; 01478 uint32_t hash = 0; 01479 uint64_t psnr_sse_total = 0; 01480 uint64_t psnr_samples_total = 0; 01481 double psnr_totals[4] = {0, 0, 0, 0}; 01482 int psnr_count = 0; 01483 stereo_format_t stereo_fmt = STEREO_FORMAT_MONO; 01484 int counts[64]={0}; 01485 int show_q_hist_buckets=0; 01486 int show_rate_hist_buckets=0; 01487 struct rate_hist rate_hist={0}; 01488 01489 exec_name = argv_[0]; 01490 ebml.last_pts_ms = -1; 01491 01492 if (argc < 3) 01493 usage_exit(); 01494 01495 01496 /* First parse the codec and usage values, because we want to apply other 01497 * parameters on top of the default configuration provided by the codec. 01498 */ 01499 argv = argv_dup(argc - 1, argv_ + 1); 01500 01501 for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) 01502 { 01503 arg.argv_step = 1; 01504 01505 if (arg_match(&arg, &codecarg, argi)) 01506 { 01507 int j, k = -1; 01508 01509 for (j = 0; j < sizeof(codecs) / sizeof(codecs[0]); j++) 01510 if (!strcmp(codecs[j].name, arg.val)) 01511 k = j; 01512 01513 if (k >= 0) 01514 codec = codecs + k; 01515 else 01516 die("Error: Unrecognized argument (%s) to --codec\n", 01517 arg.val); 01518 01519 } 01520 else if (arg_match(&arg, &passes, argi)) 01521 { 01522 arg_passes = arg_parse_uint(&arg); 01523 01524 if (arg_passes < 1 || arg_passes > 2) 01525 die("Error: Invalid number of passes (%d)\n", arg_passes); 01526 } 01527 else if (arg_match(&arg, &pass_arg, argi)) 01528 { 01529 one_pass_only = arg_parse_uint(&arg); 01530 01531 if (one_pass_only < 1 || one_pass_only > 2) 01532 die("Error: Invalid pass selected (%d)\n", one_pass_only); 01533 } 01534 else if (arg_match(&arg, &fpf_name, argi)) 01535 stats_fn = arg.val; 01536 else if (arg_match(&arg, &usage, argi)) 01537 arg_usage = arg_parse_uint(&arg); 01538 else if (arg_match(&arg, &deadline, argi)) 01539 arg_deadline = arg_parse_uint(&arg); 01540 else if (arg_match(&arg, &best_dl, argi)) 01541 arg_deadline = VPX_DL_BEST_QUALITY; 01542 else if (arg_match(&arg, &good_dl, argi)) 01543 arg_deadline = VPX_DL_GOOD_QUALITY; 01544 else if (arg_match(&arg, &rt_dl, argi)) 01545 arg_deadline = VPX_DL_REALTIME; 01546 else if (arg_match(&arg, &use_yv12, argi)) 01547 { 01548 arg_use_i420 = 0; 01549 } 01550 else if (arg_match(&arg, &use_i420, argi)) 01551 { 01552 arg_use_i420 = 1; 01553 } 01554 else if (arg_match(&arg, &verbosearg, argi)) 01555 verbose = 1; 01556 else if (arg_match(&arg, &limit, argi)) 01557 arg_limit = arg_parse_uint(&arg); 01558 else if (arg_match(&arg, &psnrarg, argi)) 01559 show_psnr = 1; 01560 else if (arg_match(&arg, &framerate, argi)) 01561 { 01562 arg_framerate = arg_parse_rational(&arg); 01563 arg_have_framerate = 1; 01564 } 01565 else if (arg_match(&arg, &use_ivf, argi)) 01566 write_webm = 0; 01567 else if (arg_match(&arg, &outputfile, argi)) 01568 out_fn = arg.val; 01569 else if (arg_match(&arg, &debugmode, argi)) 01570 ebml.debug = 1; 01571 else if (arg_match(&arg, &q_hist_n, argi)) 01572 show_q_hist_buckets = arg_parse_uint(&arg); 01573 else if (arg_match(&arg, &rate_hist_n, argi)) 01574 show_rate_hist_buckets = arg_parse_uint(&arg); 01575 else 01576 argj++; 01577 } 01578 01579 /* Ensure that --passes and --pass are consistent. If --pass is set and --passes=2, 01580 * ensure --fpf was set. 01581 */ 01582 if (one_pass_only) 01583 { 01584 /* DWIM: Assume the user meant passes=2 if pass=2 is specified */ 01585 if (one_pass_only > arg_passes) 01586 { 01587 fprintf(stderr, "Warning: Assuming --pass=%d implies --passes=%d\n", 01588 one_pass_only, one_pass_only); 01589 arg_passes = one_pass_only; 01590 } 01591 01592 if (arg_passes == 2 && !stats_fn) 01593 die("Must specify --fpf when --pass=%d and --passes=2\n", one_pass_only); 01594 } 01595 01596 /* Populate encoder configuration */ 01597 res = vpx_codec_enc_config_default(codec->iface, &cfg, arg_usage); 01598 01599 if (res) 01600 { 01601 fprintf(stderr, "Failed to get config: %s\n", 01602 vpx_codec_err_to_string(res)); 01603 return EXIT_FAILURE; 01604 } 01605 01606 /* Change the default timebase to a high enough value so that the encoder 01607 * will always create strictly increasing timestamps. 01608 */ 01609 cfg.g_timebase.den = 1000; 01610 01611 /* Never use the library's default resolution, require it be parsed 01612 * from the file or set on the command line. 01613 */ 01614 cfg.g_w = 0; 01615 cfg.g_h = 0; 01616 01617 /* Now parse the remainder of the parameters. */ 01618 for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) 01619 { 01620 arg.argv_step = 1; 01621 01622 if (0); 01623 else if (arg_match(&arg, &threads, argi)) 01624 cfg.g_threads = arg_parse_uint(&arg); 01625 else if (arg_match(&arg, &profile, argi)) 01626 cfg.g_profile = arg_parse_uint(&arg); 01627 else if (arg_match(&arg, &width, argi)) 01628 cfg.g_w = arg_parse_uint(&arg); 01629 else if (arg_match(&arg, &height, argi)) 01630 cfg.g_h = arg_parse_uint(&arg); 01631 else if (arg_match(&arg, &stereo_mode, argi)) 01632 stereo_fmt = arg_parse_enum_or_int(&arg); 01633 else if (arg_match(&arg, &timebase, argi)) 01634 cfg.g_timebase = arg_parse_rational(&arg); 01635 else if (arg_match(&arg, &error_resilient, argi)) 01636 cfg.g_error_resilient = arg_parse_uint(&arg); 01637 else if (arg_match(&arg, &lag_in_frames, argi)) 01638 cfg.g_lag_in_frames = arg_parse_uint(&arg); 01639 else if (arg_match(&arg, &dropframe_thresh, argi)) 01640 cfg.rc_dropframe_thresh = arg_parse_uint(&arg); 01641 else if (arg_match(&arg, &resize_allowed, argi)) 01642 cfg.rc_resize_allowed = arg_parse_uint(&arg); 01643 else if (arg_match(&arg, &resize_up_thresh, argi)) 01644 cfg.rc_resize_up_thresh = arg_parse_uint(&arg); 01645 else if (arg_match(&arg, &resize_down_thresh, argi)) 01646 cfg.rc_resize_down_thresh = arg_parse_uint(&arg); 01647 else if (arg_match(&arg, &end_usage, argi)) 01648 cfg.rc_end_usage = arg_parse_enum_or_int(&arg); 01649 else if (arg_match(&arg, &target_bitrate, argi)) 01650 cfg.rc_target_bitrate = arg_parse_uint(&arg); 01651 else if (arg_match(&arg, &min_quantizer, argi)) 01652 cfg.rc_min_quantizer = arg_parse_uint(&arg); 01653 else if (arg_match(&arg, &max_quantizer, argi)) 01654 cfg.rc_max_quantizer = arg_parse_uint(&arg); 01655 else if (arg_match(&arg, &undershoot_pct, argi)) 01656 cfg.rc_undershoot_pct = arg_parse_uint(&arg); 01657 else if (arg_match(&arg, &overshoot_pct, argi)) 01658 cfg.rc_overshoot_pct = arg_parse_uint(&arg); 01659 else if (arg_match(&arg, &buf_sz, argi)) 01660 cfg.rc_buf_sz = arg_parse_uint(&arg); 01661 else if (arg_match(&arg, &buf_initial_sz, argi)) 01662 cfg.rc_buf_initial_sz = arg_parse_uint(&arg); 01663 else if (arg_match(&arg, &buf_optimal_sz, argi)) 01664 cfg.rc_buf_optimal_sz = arg_parse_uint(&arg); 01665 else if (arg_match(&arg, &bias_pct, argi)) 01666 { 01667 cfg.rc_2pass_vbr_bias_pct = arg_parse_uint(&arg); 01668 01669 if (arg_passes < 2) 01670 fprintf(stderr, 01671 "Warning: option %s ignored in one-pass mode.\n", 01672 arg.name); 01673 } 01674 else if (arg_match(&arg, &minsection_pct, argi)) 01675 { 01676 cfg.rc_2pass_vbr_minsection_pct = arg_parse_uint(&arg); 01677 01678 if (arg_passes < 2) 01679 fprintf(stderr, 01680 "Warning: option %s ignored in one-pass mode.\n", 01681 arg.name); 01682 } 01683 else if (arg_match(&arg, &maxsection_pct, argi)) 01684 { 01685 cfg.rc_2pass_vbr_maxsection_pct = arg_parse_uint(&arg); 01686 01687 if (arg_passes < 2) 01688 fprintf(stderr, 01689 "Warning: option %s ignored in one-pass mode.\n", 01690 arg.name); 01691 } 01692 else if (arg_match(&arg, &kf_min_dist, argi)) 01693 cfg.kf_min_dist = arg_parse_uint(&arg); 01694 else if (arg_match(&arg, &kf_max_dist, argi)) 01695 cfg.kf_max_dist = arg_parse_uint(&arg); 01696 else if (arg_match(&arg, &kf_disabled, argi)) 01697 cfg.kf_mode = VPX_KF_DISABLED; 01698 else 01699 argj++; 01700 } 01701 01702 /* Handle codec specific options */ 01703 #if CONFIG_VP8_ENCODER 01704 01705 if (codec->iface == &vpx_codec_vp8_cx_algo) 01706 { 01707 ctrl_args = vp8_args; 01708 ctrl_args_map = vp8_arg_ctrl_map; 01709 } 01710 01711 #endif 01712 01713 for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) 01714 { 01715 int match = 0; 01716 01717 arg.argv_step = 1; 01718 01719 for (i = 0; ctrl_args[i]; i++) 01720 { 01721 if (arg_match(&arg, ctrl_args[i], argi)) 01722 { 01723 int j; 01724 match = 1; 01725 01726 /* Point either to the next free element or the first 01727 * instance of this control. 01728 */ 01729 for(j=0; j<arg_ctrl_cnt; j++) 01730 if(arg_ctrls[j][0] == ctrl_args_map[i]) 01731 break; 01732 01733 /* Update/insert */ 01734 assert(j < ARG_CTRL_CNT_MAX); 01735 if (j < ARG_CTRL_CNT_MAX) 01736 { 01737 arg_ctrls[j][0] = ctrl_args_map[i]; 01738 arg_ctrls[j][1] = arg_parse_enum_or_int(&arg); 01739 if(j == arg_ctrl_cnt) 01740 arg_ctrl_cnt++; 01741 } 01742 01743 } 01744 } 01745 01746 if (!match) 01747 argj++; 01748 } 01749 01750 /* Check for unrecognized options */ 01751 for (argi = argv; *argi; argi++) 01752 if (argi[0][0] == '-' && argi[0][1]) 01753 die("Error: Unrecognized option %s\n", *argi); 01754 01755 /* Handle non-option arguments */ 01756 in_fn = argv[0]; 01757 01758 if (!in_fn) 01759 usage_exit(); 01760 01761 if(!out_fn) 01762 die("Error: Output file is required (specify with -o)\n"); 01763 01764 memset(&stats, 0, sizeof(stats)); 01765 01766 for (pass = one_pass_only ? one_pass_only - 1 : 0; pass < arg_passes; pass++) 01767 { 01768 int frames_in = 0, frames_out = 0; 01769 int64_t nbytes = 0; 01770 struct detect_buffer detect; 01771 01772 /* Parse certain options from the input file, if possible */ 01773 infile = strcmp(in_fn, "-") ? fopen(in_fn, "rb") 01774 : set_binary_mode(stdin); 01775 01776 if (!infile) 01777 { 01778 fprintf(stderr, "Failed to open input file\n"); 01779 return EXIT_FAILURE; 01780 } 01781 01782 /* For RAW input sources, these bytes will applied on the first frame 01783 * in read_frame(). 01784 */ 01785 detect.buf_read = fread(detect.buf, 1, 4, infile); 01786 detect.position = 0; 01787 01788 if (detect.buf_read == 4 && file_is_y4m(infile, &y4m, detect.buf)) 01789 { 01790 if (y4m_input_open(&y4m, infile, detect.buf, 4) >= 0) 01791 { 01792 file_type = FILE_TYPE_Y4M; 01793 cfg.g_w = y4m.pic_w; 01794 cfg.g_h = y4m.pic_h; 01795 01796 /* Use the frame rate from the file only if none was specified 01797 * on the command-line. 01798 */ 01799 if (!arg_have_framerate) 01800 { 01801 arg_framerate.num = y4m.fps_n; 01802 arg_framerate.den = y4m.fps_d; 01803 } 01804 01805 arg_use_i420 = 0; 01806 } 01807 else 01808 { 01809 fprintf(stderr, "Unsupported Y4M stream.\n"); 01810 return EXIT_FAILURE; 01811 } 01812 } 01813 else if (detect.buf_read == 4 && 01814 file_is_ivf(infile, &fourcc, &cfg.g_w, &cfg.g_h, &detect)) 01815 { 01816 file_type = FILE_TYPE_IVF; 01817 switch (fourcc) 01818 { 01819 case 0x32315659: 01820 arg_use_i420 = 0; 01821 break; 01822 case 0x30323449: 01823 arg_use_i420 = 1; 01824 break; 01825 default: 01826 fprintf(stderr, "Unsupported fourcc (%08x) in IVF\n", fourcc); 01827 return EXIT_FAILURE; 01828 } 01829 } 01830 else 01831 { 01832 file_type = FILE_TYPE_RAW; 01833 } 01834 01835 if(!cfg.g_w || !cfg.g_h) 01836 { 01837 fprintf(stderr, "Specify stream dimensions with --width (-w) " 01838 " and --height (-h).\n"); 01839 return EXIT_FAILURE; 01840 } 01841 01842 #define SHOW(field) fprintf(stderr, " %-28s = %d\n", #field, cfg.field) 01843 01844 if (verbose && pass == 0) 01845 { 01846 fprintf(stderr, "Codec: %s\n", vpx_codec_iface_name(codec->iface)); 01847 fprintf(stderr, "Source file: %s Format: %s\n", in_fn, 01848 arg_use_i420 ? "I420" : "YV12"); 01849 fprintf(stderr, "Destination file: %s\n", out_fn); 01850 fprintf(stderr, "Encoder parameters:\n"); 01851 01852 SHOW(g_usage); 01853 SHOW(g_threads); 01854 SHOW(g_profile); 01855 SHOW(g_w); 01856 SHOW(g_h); 01857 SHOW(g_timebase.num); 01858 SHOW(g_timebase.den); 01859 SHOW(g_error_resilient); 01860 SHOW(g_pass); 01861 SHOW(g_lag_in_frames); 01862 SHOW(rc_dropframe_thresh); 01863 SHOW(rc_resize_allowed); 01864 SHOW(rc_resize_up_thresh); 01865 SHOW(rc_resize_down_thresh); 01866 SHOW(rc_end_usage); 01867 SHOW(rc_target_bitrate); 01868 SHOW(rc_min_quantizer); 01869 SHOW(rc_max_quantizer); 01870 SHOW(rc_undershoot_pct); 01871 SHOW(rc_overshoot_pct); 01872 SHOW(rc_buf_sz); 01873 SHOW(rc_buf_initial_sz); 01874 SHOW(rc_buf_optimal_sz); 01875 SHOW(rc_2pass_vbr_bias_pct); 01876 SHOW(rc_2pass_vbr_minsection_pct); 01877 SHOW(rc_2pass_vbr_maxsection_pct); 01878 SHOW(kf_mode); 01879 SHOW(kf_min_dist); 01880 SHOW(kf_max_dist); 01881 } 01882 01883 if(pass == (one_pass_only ? one_pass_only - 1 : 0)) { 01884 if (file_type == FILE_TYPE_Y4M) 01885 /*The Y4M reader does its own allocation. 01886 Just initialize this here to avoid problems if we never read any 01887 frames.*/ 01888 memset(&raw, 0, sizeof(raw)); 01889 else 01890 vpx_img_alloc(&raw, arg_use_i420 ? VPX_IMG_FMT_I420 : VPX_IMG_FMT_YV12, 01891 cfg.g_w, cfg.g_h, 1); 01892 01893 init_rate_histogram(&rate_hist, &cfg, &arg_framerate); 01894 } 01895 01896 outfile = strcmp(out_fn, "-") ? fopen(out_fn, "wb") 01897 : set_binary_mode(stdout); 01898 01899 if (!outfile) 01900 { 01901 fprintf(stderr, "Failed to open output file\n"); 01902 return EXIT_FAILURE; 01903 } 01904 01905 if(write_webm && fseek(outfile, 0, SEEK_CUR)) 01906 { 01907 fprintf(stderr, "WebM output to pipes not supported.\n"); 01908 return EXIT_FAILURE; 01909 } 01910 01911 if (stats_fn) 01912 { 01913 if (!stats_open_file(&stats, stats_fn, pass)) 01914 { 01915 fprintf(stderr, "Failed to open statistics store\n"); 01916 return EXIT_FAILURE; 01917 } 01918 } 01919 else 01920 { 01921 if (!stats_open_mem(&stats, pass)) 01922 { 01923 fprintf(stderr, "Failed to open statistics store\n"); 01924 return EXIT_FAILURE; 01925 } 01926 } 01927 01928 cfg.g_pass = arg_passes == 2 01929 ? pass ? VPX_RC_LAST_PASS : VPX_RC_FIRST_PASS 01930 : VPX_RC_ONE_PASS; 01931 #if VPX_ENCODER_ABI_VERSION > (1 + VPX_CODEC_ABI_VERSION) 01932 01933 if (pass) 01934 { 01935 cfg.rc_twopass_stats_in = stats_get(&stats); 01936 } 01937 01938 #endif 01939 01940 if(write_webm) 01941 { 01942 ebml.stream = outfile; 01943 write_webm_file_header(&ebml, &cfg, &arg_framerate, stereo_fmt); 01944 } 01945 else 01946 write_ivf_file_header(outfile, &cfg, codec->fourcc, 0); 01947 01948 01949 /* Construct Encoder Context */ 01950 vpx_codec_enc_init(&encoder, codec->iface, &cfg, 01951 show_psnr ? VPX_CODEC_USE_PSNR : 0); 01952 ctx_exit_on_error(&encoder, "Failed to initialize encoder"); 01953 01954 /* Note that we bypass the vpx_codec_control wrapper macro because 01955 * we're being clever to store the control IDs in an array. Real 01956 * applications will want to make use of the enumerations directly 01957 */ 01958 for (i = 0; i < arg_ctrl_cnt; i++) 01959 { 01960 if (vpx_codec_control_(&encoder, arg_ctrls[i][0], arg_ctrls[i][1])) 01961 fprintf(stderr, "Error: Tried to set control %d = %d\n", 01962 arg_ctrls[i][0], arg_ctrls[i][1]); 01963 01964 ctx_exit_on_error(&encoder, "Failed to control codec"); 01965 } 01966 01967 frame_avail = 1; 01968 got_data = 0; 01969 01970 while (frame_avail || got_data) 01971 { 01972 vpx_codec_iter_t iter = NULL; 01973 const vpx_codec_cx_pkt_t *pkt; 01974 struct vpx_usec_timer timer; 01975 int64_t frame_start, next_frame_start; 01976 01977 if (!arg_limit || frames_in < arg_limit) 01978 { 01979 frame_avail = read_frame(infile, &raw, file_type, &y4m, 01980 &detect); 01981 01982 if (frame_avail) 01983 frames_in++; 01984 01985 fprintf(stderr, 01986 "\rPass %d/%d frame %4d/%-4d %7"PRId64"B \033[K", 01987 pass + 1, arg_passes, frames_in, frames_out, nbytes); 01988 } 01989 else 01990 frame_avail = 0; 01991 01992 vpx_usec_timer_start(&timer); 01993 01994 frame_start = (cfg.g_timebase.den * (int64_t)(frames_in - 1) 01995 * arg_framerate.den) / cfg.g_timebase.num / arg_framerate.num; 01996 next_frame_start = (cfg.g_timebase.den * (int64_t)(frames_in) 01997 * arg_framerate.den) 01998 / cfg.g_timebase.num / arg_framerate.num; 01999 vpx_codec_encode(&encoder, frame_avail ? &raw : NULL, frame_start, 02000 next_frame_start - frame_start, 02001 0, arg_deadline); 02002 vpx_usec_timer_mark(&timer); 02003 cx_time += vpx_usec_timer_elapsed(&timer); 02004 ctx_exit_on_error(&encoder, "Failed to encode frame"); 02005 02006 if(cfg.g_pass != VPX_RC_FIRST_PASS) 02007 { 02008 int q; 02009 02010 vpx_codec_control(&encoder, VP8E_GET_LAST_QUANTIZER_64, &q); 02011 ctx_exit_on_error(&encoder, "Failed to read quantizer"); 02012 counts[q]++; 02013 } 02014 02015 got_data = 0; 02016 02017 while ((pkt = vpx_codec_get_cx_data(&encoder, &iter))) 02018 { 02019 got_data = 1; 02020 02021 switch (pkt->kind) 02022 { 02023 case VPX_CODEC_CX_FRAME_PKT: 02024 frames_out++; 02025 fprintf(stderr, " %6luF", 02026 (unsigned long)pkt->data.frame.sz); 02027 02028 update_rate_histogram(&rate_hist, &cfg, pkt); 02029 if(write_webm) 02030 { 02031 /* Update the hash */ 02032 if(!ebml.debug) 02033 hash = murmur(pkt->data.frame.buf, 02034 pkt->data.frame.sz, hash); 02035 02036 write_webm_block(&ebml, &cfg, pkt); 02037 } 02038 else 02039 { 02040 write_ivf_frame_header(outfile, pkt); 02041 if(fwrite(pkt->data.frame.buf, 1, 02042 pkt->data.frame.sz, outfile)); 02043 } 02044 nbytes += pkt->data.raw.sz; 02045 break; 02046 case VPX_CODEC_STATS_PKT: 02047 frames_out++; 02048 fprintf(stderr, " %6luS", 02049 (unsigned long)pkt->data.twopass_stats.sz); 02050 stats_write(&stats, 02051 pkt->data.twopass_stats.buf, 02052 pkt->data.twopass_stats.sz); 02053 nbytes += pkt->data.raw.sz; 02054 break; 02055 case VPX_CODEC_PSNR_PKT: 02056 02057 if (show_psnr) 02058 { 02059 int i; 02060 02061 psnr_sse_total += pkt->data.psnr.sse[0]; 02062 psnr_samples_total += pkt->data.psnr.samples[0]; 02063 for (i = 0; i < 4; i++) 02064 { 02065 fprintf(stderr, "%.3lf ", pkt->data.psnr.psnr[i]); 02066 psnr_totals[i] += pkt->data.psnr.psnr[i]; 02067 } 02068 psnr_count++; 02069 } 02070 02071 break; 02072 default: 02073 break; 02074 } 02075 } 02076 02077 fflush(stdout); 02078 } 02079 02080 fprintf(stderr, 02081 "\rPass %d/%d frame %4d/%-4d %7"PRId64"B %7lub/f %7"PRId64"b/s" 02082 " %7lu %s (%.2f fps)\033[K", pass + 1, 02083 arg_passes, frames_in, frames_out, nbytes, 02084 frames_in ? (unsigned long)(nbytes * 8 / frames_in) : 0, 02085 frames_in ? nbytes * 8 *(int64_t)arg_framerate.num / arg_framerate.den / frames_in : 0, 02086 cx_time > 9999999 ? cx_time / 1000 : cx_time, 02087 cx_time > 9999999 ? "ms" : "us", 02088 cx_time > 0 ? (float)frames_in * 1000000.0 / (float)cx_time : 0); 02089 02090 if ( (show_psnr) && (psnr_count>0) ) 02091 { 02092 int i; 02093 double ovpsnr = vp8_mse2psnr(psnr_samples_total, 255.0, 02094 psnr_sse_total); 02095 02096 fprintf(stderr, "\nPSNR (Overall/Avg/Y/U/V)"); 02097 02098 fprintf(stderr, " %.3lf", ovpsnr); 02099 for (i = 0; i < 4; i++) 02100 { 02101 fprintf(stderr, " %.3lf", psnr_totals[i]/psnr_count); 02102 } 02103 } 02104 02105 vpx_codec_destroy(&encoder); 02106 02107 fclose(infile); 02108 if (file_type == FILE_TYPE_Y4M) 02109 y4m_input_close(&y4m); 02110 02111 if(write_webm) 02112 { 02113 write_webm_file_footer(&ebml, hash); 02114 free(ebml.cue_list); 02115 ebml.cue_list = NULL; 02116 } 02117 else 02118 { 02119 if (!fseek(outfile, 0, SEEK_SET)) 02120 write_ivf_file_header(outfile, &cfg, codec->fourcc, frames_out); 02121 } 02122 02123 fclose(outfile); 02124 stats_close(&stats, arg_passes-1); 02125 fprintf(stderr, "\n"); 02126 02127 if (one_pass_only) 02128 break; 02129 } 02130 02131 if (show_q_hist_buckets) 02132 show_q_histogram(counts, show_q_hist_buckets); 02133 02134 if (show_rate_hist_buckets) 02135 show_rate_histogram(&rate_hist, &cfg, show_rate_hist_buckets); 02136 destroy_rate_histogram(&rate_hist); 02137 02138 vpx_img_free(&raw); 02139 free(argv); 02140 return EXIT_SUCCESS; 02141 }