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      1 /*
      2  *  Copyright 2013 The LibYuv Project Authors. All rights reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS. All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 // Convert an ARGB image to YUV.
     12 // Usage: convert src_argb.raw dst_yuv.raw
     13 
     14 #ifndef _CRT_SECURE_NO_WARNINGS
     15 #define _CRT_SECURE_NO_WARNINGS
     16 #endif
     17 
     18 #include <stddef.h>
     19 #include <stdio.h>
     20 #include <stdlib.h>
     21 #include <string.h>
     22 
     23 #include "libyuv/convert.h"
     24 #include "libyuv/planar_functions.h"
     25 #include "libyuv/scale_argb.h"
     26 
     27 // options
     28 bool verbose = false;
     29 bool attenuate = false;
     30 bool unattenuate = false;
     31 int image_width = 0, image_height = 0;  // original width and height
     32 int dst_width = 0, dst_height = 0;  // new width and height
     33 int fileindex_org = 0;  // argv argument contains the original file name.
     34 int fileindex_rec = 0;  // argv argument contains the reconstructed file name.
     35 int num_rec = 0;  // Number of reconstructed images.
     36 int num_skip_org = 0;  // Number of frames to skip in original.
     37 int num_frames = 0;  // Number of frames to convert.
     38 int filter = 1;  // Bilinear filter for scaling.
     39 
     40 static __inline uint32 Abs(int32 v) {
     41   return v >= 0 ? v : -v;
     42 }
     43 
     44 // Parse PYUV format. ie name.1920x800_24Hz_P420.yuv
     45 bool ExtractResolutionFromFilename(const char* name,
     46                                    int* width_ptr,
     47                                    int* height_ptr) {
     48   // Isolate the .width_height. section of the filename by searching for a
     49   // dot or underscore followed by a digit.
     50   for (int i = 0; name[i]; ++i) {
     51     if ((name[i] == '.' || name[i] == '_') &&
     52         name[i + 1] >= '0' && name[i + 1] <= '9') {
     53       int n = sscanf(name + i + 1, "%dx%d", width_ptr, height_ptr);  // NOLINT
     54       if (2 == n) {
     55         return true;
     56       }
     57     }
     58   }
     59   return false;
     60 }
     61 
     62 void PrintHelp(const char * program) {
     63   printf("%s [-options] src_argb.raw dst_yuv.raw\n", program);
     64   printf(" -s <width> <height> .... specify source resolution.  "
     65          "Optional if name contains\n"
     66          "                          resolution (ie. "
     67          "name.1920x800_24Hz_P420.yuv)\n"
     68          "                          Negative value mirrors.\n");
     69   printf(" -d <width> <height> .... specify destination resolution.\n");
     70   printf(" -f <filter> ............ 0 = point, 1 = bilinear (default).\n");
     71   printf(" -skip <src_argb> ....... Number of frame to skip of src_argb\n");
     72   printf(" -frames <num> .......... Number of frames to convert\n");
     73   printf(" -attenuate ............. Attenuate the ARGB image\n");
     74   printf(" -unattenuate ........... Unattenuate the ARGB image\n");
     75   printf(" -v ..................... verbose\n");
     76   printf(" -h ..................... this help\n");
     77   exit(0);
     78 }
     79 
     80 void ParseOptions(int argc, const char* argv[]) {
     81   if (argc <= 1) PrintHelp(argv[0]);
     82   for (int c = 1; c < argc; ++c) {
     83     if (!strcmp(argv[c], "-v")) {
     84       verbose = true;
     85     } else if (!strcmp(argv[c], "-attenuate")) {
     86       attenuate = true;
     87     } else if (!strcmp(argv[c], "-unattenuate")) {
     88       unattenuate = true;
     89     } else if (!strcmp(argv[c], "-h") || !strcmp(argv[c], "-help")) {
     90       PrintHelp(argv[0]);
     91     } else if (!strcmp(argv[c], "-s") && c + 2 < argc) {
     92       image_width = atoi(argv[++c]);    // NOLINT
     93       image_height = atoi(argv[++c]);   // NOLINT
     94     } else if (!strcmp(argv[c], "-d") && c + 2 < argc) {
     95       dst_width = atoi(argv[++c]);    // NOLINT
     96       dst_height = atoi(argv[++c]);   // NOLINT
     97     } else if (!strcmp(argv[c], "-skip") && c + 1 < argc) {
     98       num_skip_org = atoi(argv[++c]);   // NOLINT
     99     } else if (!strcmp(argv[c], "-frames") && c + 1 < argc) {
    100       num_frames = atoi(argv[++c]);     // NOLINT
    101     } else if (!strcmp(argv[c], "-f") && c + 1 < argc) {
    102       filter = atoi(argv[++c]);     // NOLINT
    103     } else if (argv[c][0] == '-') {
    104       fprintf(stderr, "Unknown option. %s\n", argv[c]);
    105     } else if (fileindex_org == 0) {
    106       fileindex_org = c;
    107     } else if (fileindex_rec == 0) {
    108       fileindex_rec = c;
    109       num_rec = 1;
    110     } else {
    111       ++num_rec;
    112     }
    113   }
    114   if (fileindex_org == 0 || fileindex_rec == 0) {
    115     fprintf(stderr, "Missing filenames\n");
    116     PrintHelp(argv[0]);
    117   }
    118   if (num_skip_org < 0) {
    119     fprintf(stderr, "Skipped frames incorrect\n");
    120     PrintHelp(argv[0]);
    121   }
    122   if (num_frames < 0) {
    123     fprintf(stderr, "Number of frames incorrect\n");
    124     PrintHelp(argv[0]);
    125   }
    126 
    127   int org_width, org_height;
    128   int rec_width, rec_height;
    129   bool org_res_avail = ExtractResolutionFromFilename(argv[fileindex_org],
    130                                                      &org_width,
    131                                                      &org_height);
    132   bool rec_res_avail = ExtractResolutionFromFilename(argv[fileindex_rec],
    133                                                      &rec_width,
    134                                                      &rec_height);
    135   if (image_width == 0 || image_height == 0) {
    136     if (org_res_avail) {
    137       image_width = org_width;
    138       image_height = org_height;
    139     } else if (rec_res_avail) {
    140       image_width = rec_width;
    141       image_height = rec_height;
    142     } else {
    143       fprintf(stderr, "Missing dimensions.\n");
    144       PrintHelp(argv[0]);
    145     }
    146   }
    147   if (dst_width == 0 || dst_height == 0) {
    148     if (rec_res_avail) {
    149       dst_width = rec_width;
    150       dst_height = rec_height;
    151     } else {
    152       dst_width = Abs(image_width);
    153       dst_height = Abs(image_height);
    154     }
    155   }
    156 }
    157 
    158 static const int kTileX = 32;
    159 static const int kTileY = 32;
    160 
    161 static int TileARGBScale(const uint8* src_argb, int src_stride_argb,
    162                          int src_width, int src_height,
    163                          uint8* dst_argb, int dst_stride_argb,
    164                          int dst_width, int dst_height,
    165                          libyuv::FilterMode filtering) {
    166   for (int y = 0; y < dst_height; y += kTileY) {
    167     for (int x = 0; x < dst_width; x += kTileX) {
    168       int clip_width = kTileX;
    169       if (x + clip_width > dst_width) {
    170         clip_width = dst_width - x;
    171       }
    172       int clip_height = kTileY;
    173       if (y + clip_height > dst_height) {
    174         clip_height = dst_height - y;
    175       }
    176       int r = libyuv::ARGBScaleClip(src_argb, src_stride_argb,
    177                                     src_width, src_height,
    178                                     dst_argb, dst_stride_argb,
    179                                     dst_width, dst_height,
    180                                     x, y, clip_width, clip_height, filtering);
    181       if (r) {
    182         return r;
    183       }
    184     }
    185   }
    186   return 0;
    187 }
    188 
    189 int main(int argc, const char* argv[]) {
    190   ParseOptions(argc, argv);
    191 
    192   // Open original file (first file argument)
    193   FILE* const file_org = fopen(argv[fileindex_org], "rb");
    194   if (file_org == NULL) {
    195     fprintf(stderr, "Cannot open %s\n", argv[fileindex_org]);
    196     exit(1);
    197   }
    198 
    199   // Open all files to convert to
    200   FILE** file_rec = new FILE* [num_rec];
    201   memset(file_rec, 0, num_rec * sizeof(FILE*)); // NOLINT
    202   for (int cur_rec = 0; cur_rec < num_rec; ++cur_rec) {
    203     file_rec[cur_rec] = fopen(argv[fileindex_rec + cur_rec], "wb");
    204     if (file_rec[cur_rec] == NULL) {
    205       fprintf(stderr, "Cannot open %s\n", argv[fileindex_rec + cur_rec]);
    206       fclose(file_org);
    207       for (int i = 0; i < cur_rec; ++i) {
    208         fclose(file_rec[i]);
    209       }
    210       delete[] file_rec;
    211       exit(1);
    212     }
    213   }
    214 
    215   bool org_is_yuv = strstr(argv[fileindex_org], "_P420.") != NULL;
    216   bool org_is_argb = strstr(argv[fileindex_org], "_ARGB.") != NULL;
    217   if (!org_is_yuv && !org_is_argb) {
    218     fprintf(stderr, "Original format unknown %s\n", argv[fileindex_org]);
    219     exit(1);
    220   }
    221   int org_size = Abs(image_width) * Abs(image_height) * 4;  // ARGB
    222   // Input is YUV
    223   if (org_is_yuv) {
    224     const int y_size = Abs(image_width) * Abs(image_height);
    225     const int uv_size = ((Abs(image_width) + 1) / 2) *
    226         ((Abs(image_height) + 1) / 2);
    227     org_size = y_size + 2 * uv_size;  // YUV original.
    228   }
    229 
    230   const int dst_size = dst_width * dst_height * 4;  // ARGB scaled
    231   const int y_size = dst_width * dst_height;
    232   const int uv_size = ((dst_width + 1) / 2) * ((dst_height + 1) / 2);
    233   const size_t total_size = y_size + 2 * uv_size;
    234 #if defined(_MSC_VER)
    235   _fseeki64(file_org,
    236             static_cast<__int64>(num_skip_org) *
    237             static_cast<__int64>(org_size), SEEK_SET);
    238 #else
    239   fseek(file_org, num_skip_org * total_size, SEEK_SET);
    240 #endif
    241 
    242   uint8* const ch_org = new uint8[org_size];
    243   uint8* const ch_dst = new uint8[dst_size];
    244   uint8* const ch_rec = new uint8[total_size];
    245   if (ch_org == NULL || ch_rec == NULL) {
    246     fprintf(stderr, "No memory available\n");
    247     fclose(file_org);
    248     for (int i = 0; i < num_rec; ++i) {
    249       fclose(file_rec[i]);
    250     }
    251     delete[] ch_org;
    252     delete[] ch_dst;
    253     delete[] ch_rec;
    254     delete[] file_rec;
    255     exit(1);
    256   }
    257 
    258   if (verbose) {
    259     printf("Size: %dx%d to %dx%d\n", image_width, image_height,
    260            dst_width, dst_height);
    261   }
    262 
    263   int number_of_frames;
    264   for (number_of_frames = 0; ; ++number_of_frames) {
    265     if (num_frames && number_of_frames >= num_frames)
    266       break;
    267 
    268     // Load original YUV or ARGB frame.
    269     size_t bytes_org = fread(ch_org, sizeof(uint8),
    270                              static_cast<size_t>(org_size), file_org);
    271     if (bytes_org < static_cast<size_t>(org_size))
    272       break;
    273 
    274     // TODO(fbarchard): Attenuate doesnt need to know dimensions.
    275     // ARGB attenuate frame
    276     if (org_is_argb && attenuate) {
    277       libyuv::ARGBAttenuate(ch_org, 0, ch_org, 0, org_size / 4, 1);
    278     }
    279     // ARGB unattenuate frame
    280     if (org_is_argb && unattenuate) {
    281       libyuv::ARGBUnattenuate(ch_org, 0, ch_org, 0, org_size / 4, 1);
    282     }
    283 
    284     for (int cur_rec = 0; cur_rec < num_rec; ++cur_rec) {
    285       // Scale YUV or ARGB frame.
    286       if (org_is_yuv) {
    287         int src_width = Abs(image_width);
    288         int src_height = Abs(image_height);
    289         int half_src_width = (src_width + 1) / 2;
    290         int half_src_height = (src_height + 1) / 2;
    291         int half_dst_width = (dst_width + 1) / 2;
    292         int half_dst_height = (dst_height + 1) / 2;
    293         I420Scale(ch_org, src_width,
    294                   ch_org + src_width * src_height, half_src_width,
    295                   ch_org + src_width * src_height +
    296                       half_src_width * half_src_height,  half_src_width,
    297                   image_width, image_height,
    298                   ch_rec, dst_width,
    299                   ch_rec + dst_width * dst_height, half_dst_width,
    300                   ch_rec + dst_width * dst_height +
    301                       half_dst_width * half_dst_height,  half_dst_width,
    302                   dst_width, dst_height,
    303                       static_cast<libyuv::FilterMode>(filter));
    304       } else {
    305         TileARGBScale(ch_org, Abs(image_width) * 4,
    306                       image_width, image_height,
    307                       ch_dst, dst_width * 4,
    308                       dst_width, dst_height,
    309                       static_cast<libyuv::FilterMode>(filter));
    310       }
    311       bool rec_is_yuv = strstr(argv[fileindex_rec + cur_rec], "_P420.") != NULL;
    312       bool rec_is_argb =
    313           strstr(argv[fileindex_rec + cur_rec], "_ARGB.") != NULL;
    314       if (!rec_is_yuv && !rec_is_argb) {
    315         fprintf(stderr, "Output format unknown %s\n",
    316                 argv[fileindex_rec + cur_rec]);
    317         continue;  // Advance to next file.
    318       }
    319 
    320       // Convert ARGB to YUV.
    321       if (!org_is_yuv && rec_is_yuv) {
    322         int half_width = (dst_width + 1) / 2;
    323         int half_height = (dst_height + 1) / 2;
    324         libyuv::ARGBToI420(ch_dst, dst_width * 4,
    325                            ch_rec, dst_width,
    326                            ch_rec + dst_width * dst_height, half_width,
    327                            ch_rec + dst_width * dst_height +
    328                                half_width * half_height,  half_width,
    329                            dst_width, dst_height);
    330       }
    331 
    332       // Output YUV or ARGB frame.
    333       if (rec_is_yuv) {
    334         size_t bytes_rec = fwrite(ch_rec, sizeof(uint8),
    335                                   static_cast<size_t>(total_size),
    336                                   file_rec[cur_rec]);
    337         if (bytes_rec < static_cast<size_t>(total_size))
    338           break;
    339       } else {
    340         size_t bytes_rec = fwrite(ch_dst, sizeof(uint8),
    341                                   static_cast<size_t>(dst_size),
    342                                   file_rec[cur_rec]);
    343         if (bytes_rec < static_cast<size_t>(dst_size))
    344           break;
    345       }
    346       if (verbose) {
    347         printf("%5d", number_of_frames);
    348       }
    349       if (verbose) {
    350         printf("\t%s", argv[fileindex_rec + cur_rec]);
    351         printf("\n");
    352       }
    353     }
    354   }
    355 
    356   fclose(file_org);
    357   for (int cur_rec = 0; cur_rec < num_rec; ++cur_rec) {
    358     fclose(file_rec[cur_rec]);
    359   }
    360   delete[] ch_org;
    361   delete[] ch_dst;
    362   delete[] ch_rec;
    363   delete[] file_rec;
    364   return 0;
    365 }
    366