vpxdec

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 reads ivf files and decodes them
00013  * using the new interface. Decoded frames are output as YV12 raw.
00014  */
00015 #include <stdio.h>
00016 #include <stdlib.h>
00017 #include <stdarg.h>
00018 #include <string.h>
00019 #include <limits.h>
00020 
00021 #define VPX_CODEC_DISABLE_COMPAT 1
00022 #include "vpx_config.h"
00023 #include "vpx/vpx_decoder.h"
00024 #include "vpx_ports/vpx_timer.h"
00025 #if CONFIG_VP8_DECODER
00026 #include "vpx/vp8dx.h"
00027 #endif
00028 #if CONFIG_MD5
00029 #include "md5_utils.h"
00030 #endif
00031 #include "tools_common.h"
00032 #include "nestegg/include/nestegg/nestegg.h"
00033 
00034 #if CONFIG_OS_SUPPORT
00035 #if defined(_WIN32)
00036 #include <io.h>
00037 #define snprintf _snprintf
00038 #define isatty   _isatty
00039 #define fileno   _fileno
00040 #else
00041 #include <unistd.h>
00042 #endif
00043 #endif
00044 
00045 #ifndef PATH_MAX
00046 #define PATH_MAX 256
00047 #endif
00048 
00049 static const char *exec_name;
00050 
00051 #define VP8_FOURCC (0x00385056)
00052 static const struct
00053 {
00054     char const *name;
00055     const vpx_codec_iface_t *iface;
00056     unsigned int             fourcc;
00057     unsigned int             fourcc_mask;
00058 } ifaces[] =
00059 {
00060 #if CONFIG_VP8_DECODER
00061     {"vp8",  &vpx_codec_vp8_dx_algo,   VP8_FOURCC, 0x00FFFFFF},
00062 #endif
00063 };
00064 
00065 #include "args.h"
00066 static const arg_def_t codecarg = ARG_DEF(NULL, "codec", 1,
00067                                   "Codec to use");
00068 static const arg_def_t use_yv12 = ARG_DEF(NULL, "yv12", 0,
00069                                   "Output raw YV12 frames");
00070 static const arg_def_t use_i420 = ARG_DEF(NULL, "i420", 0,
00071                                   "Output raw I420 frames");
00072 static const arg_def_t flipuvarg = ARG_DEF(NULL, "flipuv", 0,
00073                                    "Flip the chroma planes in the output");
00074 static const arg_def_t noblitarg = ARG_DEF(NULL, "noblit", 0,
00075                                    "Don't process the decoded frames");
00076 static const arg_def_t progressarg = ARG_DEF(NULL, "progress", 0,
00077                                      "Show progress after each frame decodes");
00078 static const arg_def_t limitarg = ARG_DEF(NULL, "limit", 1,
00079                                   "Stop decoding after n frames");
00080 static const arg_def_t postprocarg = ARG_DEF(NULL, "postproc", 0,
00081                                      "Postprocess decoded frames");
00082 static const arg_def_t summaryarg = ARG_DEF(NULL, "summary", 0,
00083                                     "Show timing summary");
00084 static const arg_def_t outputfile = ARG_DEF("o", "output", 1,
00085                                     "Output file name pattern (see below)");
00086 static const arg_def_t threadsarg = ARG_DEF("t", "threads", 1,
00087                                     "Max threads to use");
00088 static const arg_def_t verbosearg = ARG_DEF("v", "verbose", 0,
00089                                   "Show version string");
00090 static const arg_def_t error_concealment = ARG_DEF(NULL, "error-concealment", 0,
00091                                        "Enable decoder error-concealment");
00092 
00093 
00094 #if CONFIG_MD5
00095 static const arg_def_t md5arg = ARG_DEF(NULL, "md5", 0,
00096                                         "Compute the MD5 sum of the decoded frame");
00097 #endif
00098 static const arg_def_t *all_args[] =
00099 {
00100     &codecarg, &use_yv12, &use_i420, &flipuvarg, &noblitarg,
00101     &progressarg, &limitarg, &postprocarg, &summaryarg, &outputfile,
00102     &threadsarg, &verbosearg,
00103 #if CONFIG_MD5
00104     &md5arg,
00105 #endif
00106     &error_concealment,
00107     NULL
00108 };
00109 
00110 #if CONFIG_VP8_DECODER
00111 static const arg_def_t addnoise_level = ARG_DEF(NULL, "noise-level", 1,
00112                                         "Enable VP8 postproc add noise");
00113 static const arg_def_t deblock = ARG_DEF(NULL, "deblock", 0,
00114                                  "Enable VP8 deblocking");
00115 static const arg_def_t demacroblock_level = ARG_DEF(NULL, "demacroblock-level", 1,
00116         "Enable VP8 demacroblocking, w/ level");
00117 static const arg_def_t pp_debug_info = ARG_DEF(NULL, "pp-debug-info", 1,
00118                                        "Enable VP8 visible debug info");
00119 static const arg_def_t pp_disp_ref_frame = ARG_DEF(NULL, "pp-dbg-ref-frame", 1,
00120                                        "Display only selected reference frame per macro block");
00121 static const arg_def_t pp_disp_mb_modes = ARG_DEF(NULL, "pp-dbg-mb-modes", 1,
00122                                        "Display only selected macro block modes");
00123 static const arg_def_t pp_disp_b_modes = ARG_DEF(NULL, "pp-dbg-b-modes", 1,
00124                                        "Display only selected block modes");
00125 static const arg_def_t pp_disp_mvs = ARG_DEF(NULL, "pp-dbg-mvs", 1,
00126                                        "Draw only selected motion vectors");
00127 
00128 static const arg_def_t *vp8_pp_args[] =
00129 {
00130     &addnoise_level, &deblock, &demacroblock_level, &pp_debug_info,
00131     &pp_disp_ref_frame, &pp_disp_mb_modes, &pp_disp_b_modes, &pp_disp_mvs,
00132     NULL
00133 };
00134 #endif
00135 
00136 static void usage_exit()
00137 {
00138     int i;
00139 
00140     fprintf(stderr, "Usage: %s <options> filename\n\n"
00141             "Options:\n", exec_name);
00142     arg_show_usage(stderr, all_args);
00143 #if CONFIG_VP8_DECODER
00144     fprintf(stderr, "\nVP8 Postprocessing Options:\n");
00145     arg_show_usage(stderr, vp8_pp_args);
00146 #endif
00147     fprintf(stderr,
00148             "\nOutput File Patterns:\n\n"
00149             "  The -o argument specifies the name of the file(s) to "
00150             "write to. If the\n  argument does not include any escape "
00151             "characters, the output will be\n  written to a single file. "
00152             "Otherwise, the filename will be calculated by\n  expanding "
00153             "the following escape characters:\n"
00154             "\n\t%%w   - Frame width"
00155             "\n\t%%h   - Frame height"
00156             "\n\t%%<n> - Frame number, zero padded to <n> places (1..9)"
00157             "\n\n  Pattern arguments are only supported in conjunction "
00158             "with the --yv12 and\n  --i420 options. If the -o option is "
00159             "not specified, the output will be\n  directed to stdout.\n"
00160             );
00161     fprintf(stderr, "\nIncluded decoders:\n\n");
00162 
00163     for (i = 0; i < sizeof(ifaces) / sizeof(ifaces[0]); i++)
00164         fprintf(stderr, "    %-6s - %s\n",
00165                 ifaces[i].name,
00166                 vpx_codec_iface_name(ifaces[i].iface));
00167 
00168     exit(EXIT_FAILURE);
00169 }
00170 
00171 void die(const char *fmt, ...)
00172 {
00173     va_list ap;
00174     va_start(ap, fmt);
00175     vfprintf(stderr, fmt, ap);
00176     fprintf(stderr, "\n");
00177     usage_exit();
00178 }
00179 
00180 static unsigned int mem_get_le16(const void *vmem)
00181 {
00182     unsigned int  val;
00183     const unsigned char *mem = (const unsigned char *)vmem;
00184 
00185     val = mem[1] << 8;
00186     val |= mem[0];
00187     return val;
00188 }
00189 
00190 static unsigned int mem_get_le32(const void *vmem)
00191 {
00192     unsigned int  val;
00193     const unsigned char *mem = (const unsigned char *)vmem;
00194 
00195     val = mem[3] << 24;
00196     val |= mem[2] << 16;
00197     val |= mem[1] << 8;
00198     val |= mem[0];
00199     return val;
00200 }
00201 
00202 enum file_kind
00203 {
00204     RAW_FILE,
00205     IVF_FILE,
00206     WEBM_FILE
00207 };
00208 
00209 struct input_ctx
00210 {
00211     enum file_kind  kind;
00212     FILE           *infile;
00213     nestegg        *nestegg_ctx;
00214     nestegg_packet *pkt;
00215     unsigned int    chunk;
00216     unsigned int    chunks;
00217     unsigned int    video_track;
00218 };
00219 
00220 #define IVF_FRAME_HDR_SZ (sizeof(uint32_t) + sizeof(uint64_t))
00221 #define RAW_FRAME_HDR_SZ (sizeof(uint32_t))
00222 static int read_frame(struct input_ctx      *input,
00223                       uint8_t               **buf,
00224                       size_t                *buf_sz,
00225                       size_t                *buf_alloc_sz)
00226 {
00227     char            raw_hdr[IVF_FRAME_HDR_SZ];
00228     size_t          new_buf_sz;
00229     FILE           *infile = input->infile;
00230     enum file_kind  kind = input->kind;
00231     if(kind == WEBM_FILE)
00232     {
00233         if(input->chunk >= input->chunks)
00234         {
00235             unsigned int track;
00236 
00237             do
00238             {
00239                 /* End of this packet, get another. */
00240                 if(input->pkt)
00241                     nestegg_free_packet(input->pkt);
00242 
00243                 if(nestegg_read_packet(input->nestegg_ctx, &input->pkt) <= 0
00244                    || nestegg_packet_track(input->pkt, &track))
00245                     return 1;
00246 
00247             } while(track != input->video_track);
00248 
00249             if(nestegg_packet_count(input->pkt, &input->chunks))
00250                 return 1;
00251             input->chunk = 0;
00252         }
00253 
00254         if(nestegg_packet_data(input->pkt, input->chunk, buf, buf_sz))
00255             return 1;
00256         input->chunk++;
00257 
00258         return 0;
00259     }
00260     /* For both the raw and ivf formats, the frame size is the first 4 bytes
00261      * of the frame header. We just need to special case on the header
00262      * size.
00263      */
00264     else if (fread(raw_hdr, kind==IVF_FILE
00265                    ? IVF_FRAME_HDR_SZ : RAW_FRAME_HDR_SZ, 1, infile) != 1)
00266     {
00267         if (!feof(infile))
00268             fprintf(stderr, "Failed to read frame size\n");
00269 
00270         new_buf_sz = 0;
00271     }
00272     else
00273     {
00274         new_buf_sz = mem_get_le32(raw_hdr);
00275 
00276         if (new_buf_sz > 256 * 1024 * 1024)
00277         {
00278             fprintf(stderr, "Error: Read invalid frame size (%u)\n",
00279                     (unsigned int)new_buf_sz);
00280             new_buf_sz = 0;
00281         }
00282 
00283         if (kind == RAW_FILE && new_buf_sz > 256 * 1024)
00284             fprintf(stderr, "Warning: Read invalid frame size (%u)"
00285                     " - not a raw file?\n", (unsigned int)new_buf_sz);
00286 
00287         if (new_buf_sz > *buf_alloc_sz)
00288         {
00289             uint8_t *new_buf = realloc(*buf, 2 * new_buf_sz);
00290 
00291             if (new_buf)
00292             {
00293                 *buf = new_buf;
00294                 *buf_alloc_sz = 2 * new_buf_sz;
00295             }
00296             else
00297             {
00298                 fprintf(stderr, "Failed to allocate compressed data buffer\n");
00299                 new_buf_sz = 0;
00300             }
00301         }
00302     }
00303 
00304     *buf_sz = new_buf_sz;
00305 
00306     if (*buf_sz)
00307     {
00308         if (fread(*buf, 1, *buf_sz, infile) != *buf_sz)
00309         {
00310             fprintf(stderr, "Failed to read full frame\n");
00311             return 1;
00312         }
00313 
00314         return 0;
00315     }
00316 
00317     return 1;
00318 }
00319 
00320 void *out_open(const char *out_fn, int do_md5)
00321 {
00322     void *out = NULL;
00323 
00324     if (do_md5)
00325     {
00326 #if CONFIG_MD5
00327         MD5Context *md5_ctx = out = malloc(sizeof(MD5Context));
00328         (void)out_fn;
00329         MD5Init(md5_ctx);
00330 #endif
00331     }
00332     else
00333     {
00334         FILE *outfile = out = strcmp("-", out_fn) ? fopen(out_fn, "wb")
00335                                                   : set_binary_mode(stdout);
00336 
00337         if (!outfile)
00338         {
00339             fprintf(stderr, "Failed to output file");
00340             exit(EXIT_FAILURE);
00341         }
00342     }
00343 
00344     return out;
00345 }
00346 
00347 void out_put(void *out, const uint8_t *buf, unsigned int len, int do_md5)
00348 {
00349     if (do_md5)
00350     {
00351 #if CONFIG_MD5
00352         MD5Update(out, buf, len);
00353 #endif
00354     }
00355     else
00356     {
00357         if(fwrite(buf, 1, len, out));
00358     }
00359 }
00360 
00361 void out_close(void *out, const char *out_fn, int do_md5)
00362 {
00363     if (do_md5)
00364     {
00365 #if CONFIG_MD5
00366         uint8_t md5[16];
00367         int i;
00368 
00369         MD5Final(md5, out);
00370         free(out);
00371 
00372         for (i = 0; i < 16; i++)
00373             printf("%02x", md5[i]);
00374 
00375         printf("  %s\n", out_fn);
00376 #endif
00377     }
00378     else
00379     {
00380         fclose(out);
00381     }
00382 }
00383 
00384 unsigned int file_is_ivf(FILE *infile,
00385                          unsigned int *fourcc,
00386                          unsigned int *width,
00387                          unsigned int *height,
00388                          unsigned int *fps_den,
00389                          unsigned int *fps_num)
00390 {
00391     char raw_hdr[32];
00392     int is_ivf = 0;
00393 
00394     if (fread(raw_hdr, 1, 32, infile) == 32)
00395     {
00396         if (raw_hdr[0] == 'D' && raw_hdr[1] == 'K'
00397             && raw_hdr[2] == 'I' && raw_hdr[3] == 'F')
00398         {
00399             is_ivf = 1;
00400 
00401             if (mem_get_le16(raw_hdr + 4) != 0)
00402                 fprintf(stderr, "Error: Unrecognized IVF version! This file may not"
00403                         " decode properly.");
00404 
00405             *fourcc = mem_get_le32(raw_hdr + 8);
00406             *width = mem_get_le16(raw_hdr + 12);
00407             *height = mem_get_le16(raw_hdr + 14);
00408             *fps_num = mem_get_le32(raw_hdr + 16);
00409             *fps_den = mem_get_le32(raw_hdr + 20);
00410 
00411             /* Some versions of vpxenc used 1/(2*fps) for the timebase, so
00412              * we can guess the framerate using only the timebase in this
00413              * case. Other files would require reading ahead to guess the
00414              * timebase, like we do for webm.
00415              */
00416             if(*fps_num < 1000)
00417             {
00418                 /* Correct for the factor of 2 applied to the timebase in the
00419                  * encoder.
00420                  */
00421                 if(*fps_num&1)*fps_den<<=1;
00422                 else *fps_num>>=1;
00423             }
00424             else
00425             {
00426                 /* Don't know FPS for sure, and don't have readahead code
00427                  * (yet?), so just default to 30fps.
00428                  */
00429                 *fps_num = 30;
00430                 *fps_den = 1;
00431             }
00432         }
00433     }
00434 
00435     if (!is_ivf)
00436         rewind(infile);
00437 
00438     return is_ivf;
00439 }
00440 
00441 
00442 unsigned int file_is_raw(FILE *infile,
00443                          unsigned int *fourcc,
00444                          unsigned int *width,
00445                          unsigned int *height,
00446                          unsigned int *fps_den,
00447                          unsigned int *fps_num)
00448 {
00449     unsigned char buf[32];
00450     int is_raw = 0;
00451     vpx_codec_stream_info_t si;
00452 
00453     si.sz = sizeof(si);
00454 
00455     if (fread(buf, 1, 32, infile) == 32)
00456     {
00457         int i;
00458 
00459         if(mem_get_le32(buf) < 256 * 1024 * 1024)
00460             for (i = 0; i < sizeof(ifaces) / sizeof(ifaces[0]); i++)
00461                 if(!vpx_codec_peek_stream_info(ifaces[i].iface,
00462                                                buf + 4, 32 - 4, &si))
00463                 {
00464                     is_raw = 1;
00465                     *fourcc = ifaces[i].fourcc;
00466                     *width = si.w;
00467                     *height = si.h;
00468                     *fps_num = 30;
00469                     *fps_den = 1;
00470                     break;
00471                 }
00472     }
00473 
00474     rewind(infile);
00475     return is_raw;
00476 }
00477 
00478 
00479 static int
00480 nestegg_read_cb(void *buffer, size_t length, void *userdata)
00481 {
00482     FILE *f = userdata;
00483 
00484     if(fread(buffer, 1, length, f) < length)
00485     {
00486         if (ferror(f))
00487             return -1;
00488         if (feof(f))
00489             return 0;
00490     }
00491     return 1;
00492 }
00493 
00494 
00495 static int
00496 nestegg_seek_cb(int64_t offset, int whence, void * userdata)
00497 {
00498     switch(whence) {
00499         case NESTEGG_SEEK_SET: whence = SEEK_SET; break;
00500         case NESTEGG_SEEK_CUR: whence = SEEK_CUR; break;
00501         case NESTEGG_SEEK_END: whence = SEEK_END; break;
00502     };
00503     return fseek(userdata, offset, whence)? -1 : 0;
00504 }
00505 
00506 
00507 static int64_t
00508 nestegg_tell_cb(void * userdata)
00509 {
00510     return ftell(userdata);
00511 }
00512 
00513 
00514 static void
00515 nestegg_log_cb(nestegg * context, unsigned int severity, char const * format,
00516                ...)
00517 {
00518     va_list ap;
00519 
00520     va_start(ap, format);
00521     vfprintf(stderr, format, ap);
00522     fprintf(stderr, "\n");
00523     va_end(ap);
00524 }
00525 
00526 
00527 static int
00528 webm_guess_framerate(struct input_ctx *input,
00529                      unsigned int     *fps_den,
00530                      unsigned int     *fps_num)
00531 {
00532     unsigned int i;
00533     uint64_t     tstamp=0;
00534 
00535     /* Guess the framerate. Read up to 1 second, or 50 video packets,
00536      * whichever comes first.
00537      */
00538     for(i=0; tstamp < 1000000000 && i < 50;)
00539     {
00540         nestegg_packet * pkt;
00541         unsigned int track;
00542 
00543         if(nestegg_read_packet(input->nestegg_ctx, &pkt) <= 0)
00544             break;
00545 
00546         nestegg_packet_track(pkt, &track);
00547         if(track == input->video_track)
00548         {
00549             nestegg_packet_tstamp(pkt, &tstamp);
00550             i++;
00551         }
00552 
00553         nestegg_free_packet(pkt);
00554     }
00555 
00556     if(nestegg_track_seek(input->nestegg_ctx, input->video_track, 0))
00557         goto fail;
00558 
00559     *fps_num = (i - 1) * 1000000;
00560     *fps_den = tstamp / 1000;
00561     return 0;
00562 fail:
00563     nestegg_destroy(input->nestegg_ctx);
00564     input->nestegg_ctx = NULL;
00565     rewind(input->infile);
00566     return 1;
00567 }
00568 
00569 
00570 static int
00571 file_is_webm(struct input_ctx *input,
00572              unsigned int     *fourcc,
00573              unsigned int     *width,
00574              unsigned int     *height,
00575              unsigned int     *fps_den,
00576              unsigned int     *fps_num)
00577 {
00578     unsigned int i, n;
00579     int          track_type = -1;
00580 
00581     nestegg_io io = {nestegg_read_cb, nestegg_seek_cb, nestegg_tell_cb,
00582                      input->infile};
00583     nestegg_video_params params;
00584 
00585     if(nestegg_init(&input->nestegg_ctx, io, NULL))
00586         goto fail;
00587 
00588     if(nestegg_track_count(input->nestegg_ctx, &n))
00589         goto fail;
00590 
00591     for(i=0; i<n; i++)
00592     {
00593         track_type = nestegg_track_type(input->nestegg_ctx, i);
00594 
00595         if(track_type == NESTEGG_TRACK_VIDEO)
00596             break;
00597         else if(track_type < 0)
00598             goto fail;
00599     }
00600 
00601     if(nestegg_track_codec_id(input->nestegg_ctx, i) != NESTEGG_CODEC_VP8)
00602     {
00603         fprintf(stderr, "Not VP8 video, quitting.\n");
00604         exit(1);
00605     }
00606 
00607     input->video_track = i;
00608 
00609     if(nestegg_track_video_params(input->nestegg_ctx, i, &params))
00610         goto fail;
00611 
00612     *fps_den = 0;
00613     *fps_num = 0;
00614     *fourcc = VP8_FOURCC;
00615     *width = params.width;
00616     *height = params.height;
00617     return 1;
00618 fail:
00619     input->nestegg_ctx = NULL;
00620     rewind(input->infile);
00621     return 0;
00622 }
00623 
00624 
00625 void show_progress(int frame_in, int frame_out, unsigned long dx_time)
00626 {
00627     fprintf(stderr, "%d decoded frames/%d showed frames in %lu us (%.2f fps)\r",
00628             frame_in, frame_out, dx_time,
00629             (float)frame_out * 1000000.0 / (float)dx_time);
00630 }
00631 
00632 
00633 void generate_filename(const char *pattern, char *out, size_t q_len,
00634                        unsigned int d_w, unsigned int d_h,
00635                        unsigned int frame_in)
00636 {
00637     const char *p = pattern;
00638     char *q = out;
00639 
00640     do
00641     {
00642         char *next_pat = strchr(p, '%');
00643 
00644         if(p == next_pat)
00645         {
00646             size_t pat_len;
00647 
00648             // parse the pattern
00649             q[q_len - 1] = '\0';
00650             switch(p[1])
00651             {
00652             case 'w': snprintf(q, q_len - 1, "%d", d_w); break;
00653             case 'h': snprintf(q, q_len - 1, "%d", d_h); break;
00654             case '1': snprintf(q, q_len - 1, "%d", frame_in); break;
00655             case '2': snprintf(q, q_len - 1, "%02d", frame_in); break;
00656             case '3': snprintf(q, q_len - 1, "%03d", frame_in); break;
00657             case '4': snprintf(q, q_len - 1, "%04d", frame_in); break;
00658             case '5': snprintf(q, q_len - 1, "%05d", frame_in); break;
00659             case '6': snprintf(q, q_len - 1, "%06d", frame_in); break;
00660             case '7': snprintf(q, q_len - 1, "%07d", frame_in); break;
00661             case '8': snprintf(q, q_len - 1, "%08d", frame_in); break;
00662             case '9': snprintf(q, q_len - 1, "%09d", frame_in); break;
00663             default:
00664                 die("Unrecognized pattern %%%c\n", p[1]);
00665             }
00666 
00667             pat_len = strlen(q);
00668             if(pat_len >= q_len - 1)
00669                 die("Output filename too long.\n");
00670             q += pat_len;
00671             p += 2;
00672             q_len -= pat_len;
00673         }
00674         else
00675         {
00676             size_t copy_len;
00677 
00678             // copy the next segment
00679             if(!next_pat)
00680                 copy_len = strlen(p);
00681             else
00682                 copy_len = next_pat - p;
00683 
00684             if(copy_len >= q_len - 1)
00685                 die("Output filename too long.\n");
00686 
00687             memcpy(q, p, copy_len);
00688             q[copy_len] = '\0';
00689             q += copy_len;
00690             p += copy_len;
00691             q_len -= copy_len;
00692         }
00693     } while(*p);
00694 }
00695 
00696 
00697 int main(int argc, const char **argv_)
00698 {
00699     vpx_codec_ctx_t          decoder;
00700     char                  *fn = NULL;
00701     int                    i;
00702     uint8_t               *buf = NULL;
00703     size_t                 buf_sz = 0, buf_alloc_sz = 0;
00704     FILE                  *infile;
00705     int                    frame_in = 0, frame_out = 0, flipuv = 0, noblit = 0, do_md5 = 0, progress = 0;
00706     int                    stop_after = 0, postproc = 0, summary = 0, quiet = 1;
00707     int                    ec_enabled = 0;
00708     vpx_codec_iface_t       *iface = NULL;
00709     unsigned int           fourcc;
00710     unsigned long          dx_time = 0;
00711     struct arg               arg;
00712     char                   **argv, **argi, **argj;
00713     const char             *outfile_pattern = 0;
00714     char                    outfile[PATH_MAX];
00715     int                     single_file;
00716     int                     use_y4m = 1;
00717     unsigned int            width;
00718     unsigned int            height;
00719     unsigned int            fps_den;
00720     unsigned int            fps_num;
00721     void                   *out = NULL;
00722     vpx_codec_dec_cfg_t     cfg = {0};
00723 #if CONFIG_VP8_DECODER
00724     vp8_postproc_cfg_t      vp8_pp_cfg = {0};
00725     int                     vp8_dbg_color_ref_frame = 0;
00726     int                     vp8_dbg_color_mb_modes = 0;
00727     int                     vp8_dbg_color_b_modes = 0;
00728     int                     vp8_dbg_display_mv = 0;
00729 #endif
00730     struct input_ctx        input = {0};
00731     int                     frames_corrupted = 0;
00732     int                     dec_flags = 0;
00733 
00734     /* Parse command line */
00735     exec_name = argv_[0];
00736     argv = argv_dup(argc - 1, argv_ + 1);
00737 
00738     for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step)
00739     {
00740         memset(&arg, 0, sizeof(arg));
00741         arg.argv_step = 1;
00742 
00743         if (arg_match(&arg, &codecarg, argi))
00744         {
00745             int j, k = -1;
00746 
00747             for (j = 0; j < sizeof(ifaces) / sizeof(ifaces[0]); j++)
00748                 if (!strcmp(ifaces[j].name, arg.val))
00749                     k = j;
00750 
00751             if (k >= 0)
00752                 iface = ifaces[k].iface;
00753             else
00754                 die("Error: Unrecognized argument (%s) to --codec\n",
00755                     arg.val);
00756         }
00757         else if (arg_match(&arg, &outputfile, argi))
00758             outfile_pattern = arg.val;
00759         else if (arg_match(&arg, &use_yv12, argi))
00760         {
00761             use_y4m = 0;
00762             flipuv = 1;
00763         }
00764         else if (arg_match(&arg, &use_i420, argi))
00765         {
00766             use_y4m = 0;
00767             flipuv = 0;
00768         }
00769         else if (arg_match(&arg, &flipuvarg, argi))
00770             flipuv = 1;
00771         else if (arg_match(&arg, &noblitarg, argi))
00772             noblit = 1;
00773         else if (arg_match(&arg, &progressarg, argi))
00774             progress = 1;
00775         else if (arg_match(&arg, &limitarg, argi))
00776             stop_after = arg_parse_uint(&arg);
00777         else if (arg_match(&arg, &postprocarg, argi))
00778             postproc = 1;
00779         else if (arg_match(&arg, &md5arg, argi))
00780             do_md5 = 1;
00781         else if (arg_match(&arg, &summaryarg, argi))
00782             summary = 1;
00783         else if (arg_match(&arg, &threadsarg, argi))
00784             cfg.threads = arg_parse_uint(&arg);
00785         else if (arg_match(&arg, &verbosearg, argi))
00786             quiet = 0;
00787 
00788 #if CONFIG_VP8_DECODER
00789         else if (arg_match(&arg, &addnoise_level, argi))
00790         {
00791             postproc = 1;
00792             vp8_pp_cfg.post_proc_flag |= VP8_ADDNOISE;
00793             vp8_pp_cfg.noise_level = arg_parse_uint(&arg);
00794         }
00795         else if (arg_match(&arg, &demacroblock_level, argi))
00796         {
00797             postproc = 1;
00798             vp8_pp_cfg.post_proc_flag |= VP8_DEMACROBLOCK;
00799             vp8_pp_cfg.deblocking_level = arg_parse_uint(&arg);
00800         }
00801         else if (arg_match(&arg, &deblock, argi))
00802         {
00803             postproc = 1;
00804             vp8_pp_cfg.post_proc_flag |= VP8_DEBLOCK;
00805         }
00806         else if (arg_match(&arg, &pp_debug_info, argi))
00807         {
00808             unsigned int level = arg_parse_uint(&arg);
00809 
00810             postproc = 1;
00811             vp8_pp_cfg.post_proc_flag &= ~0x7;
00812 
00813             if (level)
00814                 vp8_pp_cfg.post_proc_flag |= level;
00815         }
00816         else if (arg_match(&arg, &pp_disp_ref_frame, argi))
00817         {
00818             unsigned int flags = arg_parse_int(&arg);
00819             if (flags)
00820             {
00821                 postproc = 1;
00822                 vp8_dbg_color_ref_frame = flags;
00823             }
00824         }
00825         else if (arg_match(&arg, &pp_disp_mb_modes, argi))
00826         {
00827             unsigned int flags = arg_parse_int(&arg);
00828             if (flags)
00829             {
00830                 postproc = 1;
00831                 vp8_dbg_color_mb_modes = flags;
00832             }
00833         }
00834         else if (arg_match(&arg, &pp_disp_b_modes, argi))
00835         {
00836             unsigned int flags = arg_parse_int(&arg);
00837             if (flags)
00838             {
00839                 postproc = 1;
00840                 vp8_dbg_color_b_modes = flags;
00841             }
00842         }
00843         else if (arg_match(&arg, &pp_disp_mvs, argi))
00844         {
00845             unsigned int flags = arg_parse_int(&arg);
00846             if (flags)
00847             {
00848                 postproc = 1;
00849                 vp8_dbg_display_mv = flags;
00850             }
00851         }
00852         else if (arg_match(&arg, &error_concealment, argi))
00853         {
00854             ec_enabled = 1;
00855         }
00856 
00857 #endif
00858         else
00859             argj++;
00860     }
00861 
00862     /* Check for unrecognized options */
00863     for (argi = argv; *argi; argi++)
00864         if (argi[0][0] == '-' && strlen(argi[0]) > 1)
00865             die("Error: Unrecognized option %s\n", *argi);
00866 
00867     /* Handle non-option arguments */
00868     fn = argv[0];
00869 
00870     if (!fn)
00871         usage_exit();
00872 
00873     /* Open file */
00874     infile = strcmp(fn, "-") ? fopen(fn, "rb") : set_binary_mode(stdin);
00875 
00876     if (!infile)
00877     {
00878         fprintf(stderr, "Failed to open file '%s'",
00879                 strcmp(fn, "-") ? fn : "stdin");
00880         return EXIT_FAILURE;
00881     }
00882 #if CONFIG_OS_SUPPORT
00883     /* Make sure we don't dump to the terminal, unless forced to with -o - */
00884     if(!outfile_pattern && isatty(fileno(stdout)) && !do_md5 && !noblit)
00885     {
00886         fprintf(stderr,
00887                 "Not dumping raw video to your terminal. Use '-o -' to "
00888                 "override.\n");
00889         return EXIT_FAILURE;
00890     }
00891 #endif
00892     input.infile = infile;
00893     if(file_is_ivf(infile, &fourcc, &width, &height, &fps_den,
00894                    &fps_num))
00895         input.kind = IVF_FILE;
00896     else if(file_is_webm(&input, &fourcc, &width, &height, &fps_den, &fps_num))
00897         input.kind = WEBM_FILE;
00898     else if(file_is_raw(infile, &fourcc, &width, &height, &fps_den, &fps_num))
00899         input.kind = RAW_FILE;
00900     else
00901     {
00902         fprintf(stderr, "Unrecognized input file type.\n");
00903         return EXIT_FAILURE;
00904     }
00905 
00906     /* If the output file is not set or doesn't have a sequence number in
00907      * it, then we only open it once.
00908      */
00909     outfile_pattern = outfile_pattern ? outfile_pattern : "-";
00910     single_file = 1;
00911     {
00912         const char *p = outfile_pattern;
00913         do
00914         {
00915             p = strchr(p, '%');
00916             if(p && p[1] >= '1' && p[1] <= '9')
00917             {
00918                 // pattern contains sequence number, so it's not unique.
00919                 single_file = 0;
00920                 break;
00921             }
00922             if(p)
00923                 p++;
00924         } while(p);
00925     }
00926 
00927     if(single_file && !noblit)
00928     {
00929         generate_filename(outfile_pattern, outfile, sizeof(outfile)-1,
00930                           width, height, 0);
00931         out = out_open(outfile, do_md5);
00932     }
00933 
00934     if (use_y4m && !noblit)
00935     {
00936         char buffer[128];
00937         if (!single_file)
00938         {
00939             fprintf(stderr, "YUV4MPEG2 not supported with output patterns,"
00940                             " try --i420 or --yv12.\n");
00941             return EXIT_FAILURE;
00942         }
00943 
00944         if(input.kind == WEBM_FILE)
00945             if(webm_guess_framerate(&input, &fps_den, &fps_num))
00946             {
00947                 fprintf(stderr, "Failed to guess framerate -- error parsing "
00948                                 "webm file?\n");
00949                 return EXIT_FAILURE;
00950             }
00951 
00952 
00953         /*Note: We can't output an aspect ratio here because IVF doesn't
00954            store one, and neither does VP8.
00955           That will have to wait until these tools support WebM natively.*/
00956         sprintf(buffer, "YUV4MPEG2 C%s W%u H%u F%u:%u I%c\n",
00957                 "420jpeg", width, height, fps_num, fps_den, 'p');
00958         out_put(out, (unsigned char *)buffer, strlen(buffer), do_md5);
00959     }
00960 
00961     /* Try to determine the codec from the fourcc. */
00962     for (i = 0; i < sizeof(ifaces) / sizeof(ifaces[0]); i++)
00963         if ((fourcc & ifaces[i].fourcc_mask) == ifaces[i].fourcc)
00964         {
00965             vpx_codec_iface_t  *ivf_iface = ifaces[i].iface;
00966 
00967             if (iface && iface != ivf_iface)
00968                 fprintf(stderr, "Notice -- IVF header indicates codec: %s\n",
00969                         ifaces[i].name);
00970             else
00971                 iface = ivf_iface;
00972 
00973             break;
00974         }
00975 
00976     dec_flags = (postproc ? VPX_CODEC_USE_POSTPROC : 0) |
00977                 (ec_enabled ? VPX_CODEC_USE_ERROR_CONCEALMENT : 0);
00978     if (vpx_codec_dec_init(&decoder, iface ? iface :  ifaces[0].iface, &cfg,
00979                            dec_flags))
00980     {
00981         fprintf(stderr, "Failed to initialize decoder: %s\n", vpx_codec_error(&decoder));
00982         return EXIT_FAILURE;
00983     }
00984 
00985     if (!quiet)
00986         fprintf(stderr, "%s\n", decoder.name);
00987 
00988 #if CONFIG_VP8_DECODER
00989 
00990     if (vp8_pp_cfg.post_proc_flag
00991         && vpx_codec_control(&decoder, VP8_SET_POSTPROC, &vp8_pp_cfg))
00992     {
00993         fprintf(stderr, "Failed to configure postproc: %s\n", vpx_codec_error(&decoder));
00994         return EXIT_FAILURE;
00995     }
00996 
00997     if (vp8_dbg_color_ref_frame
00998         && vpx_codec_control(&decoder, VP8_SET_DBG_COLOR_REF_FRAME, vp8_dbg_color_ref_frame))
00999     {
01000         fprintf(stderr, "Failed to configure reference block visualizer: %s\n", vpx_codec_error(&decoder));
01001         return EXIT_FAILURE;
01002     }
01003 
01004     if (vp8_dbg_color_mb_modes
01005         && vpx_codec_control(&decoder, VP8_SET_DBG_COLOR_MB_MODES, vp8_dbg_color_mb_modes))
01006     {
01007         fprintf(stderr, "Failed to configure macro block visualizer: %s\n", vpx_codec_error(&decoder));
01008         return EXIT_FAILURE;
01009     }
01010 
01011     if (vp8_dbg_color_b_modes
01012         && vpx_codec_control(&decoder, VP8_SET_DBG_COLOR_B_MODES, vp8_dbg_color_b_modes))
01013     {
01014         fprintf(stderr, "Failed to configure block visualizer: %s\n", vpx_codec_error(&decoder));
01015         return EXIT_FAILURE;
01016     }
01017 
01018     if (vp8_dbg_display_mv
01019         && vpx_codec_control(&decoder, VP8_SET_DBG_DISPLAY_MV, vp8_dbg_display_mv))
01020     {
01021         fprintf(stderr, "Failed to configure motion vector visualizer: %s\n", vpx_codec_error(&decoder));
01022         return EXIT_FAILURE;
01023     }
01024 #endif
01025 
01026     /* Decode file */
01027     while (!read_frame(&input, &buf, &buf_sz, &buf_alloc_sz))
01028     {
01029         vpx_codec_iter_t  iter = NULL;
01030         vpx_image_t    *img;
01031         struct vpx_usec_timer timer;
01032         int                   corrupted;
01033 
01034         vpx_usec_timer_start(&timer);
01035 
01036         if (vpx_codec_decode(&decoder, buf, buf_sz, NULL, 0))
01037         {
01038             const char *detail = vpx_codec_error_detail(&decoder);
01039             fprintf(stderr, "Failed to decode frame: %s\n", vpx_codec_error(&decoder));
01040 
01041             if (detail)
01042                 fprintf(stderr, "  Additional information: %s\n", detail);
01043 
01044             goto fail;
01045         }
01046 
01047         vpx_usec_timer_mark(&timer);
01048         dx_time += vpx_usec_timer_elapsed(&timer);
01049 
01050         ++frame_in;
01051 
01052         if (vpx_codec_control(&decoder, VP8D_GET_FRAME_CORRUPTED, &corrupted))
01053         {
01054             fprintf(stderr, "Failed VP8_GET_FRAME_CORRUPTED: %s\n",
01055                     vpx_codec_error(&decoder));
01056             goto fail;
01057         }
01058         frames_corrupted += corrupted;
01059 
01060         if ((img = vpx_codec_get_frame(&decoder, &iter)))
01061             ++frame_out;
01062 
01063         if (progress)
01064             show_progress(frame_in, frame_out, dx_time);
01065 
01066         if (!noblit)
01067         {
01068             if (img)
01069             {
01070                 unsigned int y;
01071                 char out_fn[PATH_MAX];
01072                 uint8_t *buf;
01073 
01074                 if (!single_file)
01075                 {
01076                     size_t len = sizeof(out_fn)-1;
01077 
01078                     out_fn[len] = '\0';
01079                     generate_filename(outfile_pattern, out_fn, len-1,
01080                                       img->d_w, img->d_h, frame_in);
01081                     out = out_open(out_fn, do_md5);
01082                 }
01083                 else if(use_y4m)
01084                     out_put(out, (unsigned char *)"FRAME\n", 6, do_md5);
01085 
01086                 buf = img->planes[VPX_PLANE_Y];
01087 
01088                 for (y = 0; y < img->d_h; y++)
01089                 {
01090                     out_put(out, buf, img->d_w, do_md5);
01091                     buf += img->stride[VPX_PLANE_Y];
01092                 }
01093 
01094                 buf = img->planes[flipuv?VPX_PLANE_V:VPX_PLANE_U];
01095 
01096                 for (y = 0; y < (1 + img->d_h) / 2; y++)
01097                 {
01098                     out_put(out, buf, (1 + img->d_w) / 2, do_md5);
01099                     buf += img->stride[VPX_PLANE_U];
01100                 }
01101 
01102                 buf = img->planes[flipuv?VPX_PLANE_U:VPX_PLANE_V];
01103 
01104                 for (y = 0; y < (1 + img->d_h) / 2; y++)
01105                 {
01106                     out_put(out, buf, (1 + img->d_w) / 2, do_md5);
01107                     buf += img->stride[VPX_PLANE_V];
01108                 }
01109 
01110                 if (!single_file)
01111                     out_close(out, out_fn, do_md5);
01112             }
01113         }
01114 
01115         if (stop_after && frame_in >= stop_after)
01116             break;
01117     }
01118 
01119     if (summary || progress)
01120     {
01121         show_progress(frame_in, frame_out, dx_time);
01122         fprintf(stderr, "\n");
01123     }
01124 
01125     if (frames_corrupted)
01126         fprintf(stderr, "WARNING: %d frames corrupted.\n",frames_corrupted);
01127 
01128 fail:
01129 
01130     if (vpx_codec_destroy(&decoder))
01131     {
01132         fprintf(stderr, "Failed to destroy decoder: %s\n", vpx_codec_error(&decoder));
01133         return EXIT_FAILURE;
01134     }
01135 
01136     if (single_file && !noblit)
01137         out_close(out, outfile, do_md5);
01138 
01139     if(input.nestegg_ctx)
01140         nestegg_destroy(input.nestegg_ctx);
01141     if(input.kind != WEBM_FILE)
01142         free(buf);
01143     fclose(infile);
01144     free(argv);
01145 
01146     return frames_corrupted ? EXIT_FAILURE : EXIT_SUCCESS;
01147 }

Generated on 8 Jul 2021 for WebM VP8 Codec SDK by  doxygen 1.6.1