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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: yuvconvert 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] == '_') && name[i + 1] >= '0' &&
     52         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(
     65       " -s <width> <height> .... specify source resolution.  "
     66       "Optional if name contains\n"
     67       "                          resolution (ie. "
     68       "name.1920x800_24Hz_P420.yuv)\n"
     69       "                          Negative value mirrors.\n");
     70   printf(" -d <width> <height> .... specify destination resolution.\n");
     71   printf(" -f <filter> ............ 0 = point, 1 = bilinear (default).\n");
     72   printf(" -skip <src_argb> ....... Number of frame to skip of src_argb\n");
     73   printf(" -frames <num> .......... Number of frames to convert\n");
     74   printf(" -attenuate ............. Attenuate the ARGB image\n");
     75   printf(" -unattenuate ........... Unattenuate the ARGB image\n");
     76   printf(" -v ..................... verbose\n");
     77   printf(" -h ..................... this help\n");
     78   exit(0);
     79 }
     80 
     81 void ParseOptions(int argc, const char* argv[]) {
     82   if (argc <= 1)
     83     PrintHelp(argv[0]);
     84   for (int c = 1; c < argc; ++c) {
     85     if (!strcmp(argv[c], "-v")) {
     86       verbose = true;
     87     } else if (!strcmp(argv[c], "-attenuate")) {
     88       attenuate = true;
     89     } else if (!strcmp(argv[c], "-unattenuate")) {
     90       unattenuate = true;
     91     } else if (!strcmp(argv[c], "-h") || !strcmp(argv[c], "-help")) {
     92       PrintHelp(argv[0]);
     93     } else if (!strcmp(argv[c], "-s") && c + 2 < argc) {
     94       image_width = atoi(argv[++c]);   // NOLINT
     95       image_height = atoi(argv[++c]);  // NOLINT
     96     } else if (!strcmp(argv[c], "-d") && c + 2 < argc) {
     97       dst_width = atoi(argv[++c]);   // NOLINT
     98       dst_height = atoi(argv[++c]);  // NOLINT
     99     } else if (!strcmp(argv[c], "-skip") && c + 1 < argc) {
    100       num_skip_org = atoi(argv[++c]);  // NOLINT
    101     } else if (!strcmp(argv[c], "-frames") && c + 1 < argc) {
    102       num_frames = atoi(argv[++c]);  // NOLINT
    103     } else if (!strcmp(argv[c], "-f") && c + 1 < argc) {
    104       filter = atoi(argv[++c]);  // NOLINT
    105     } else if (argv[c][0] == '-') {
    106       fprintf(stderr, "Unknown option. %s\n", argv[c]);
    107     } else if (fileindex_org == 0) {
    108       fileindex_org = c;
    109     } else if (fileindex_rec == 0) {
    110       fileindex_rec = c;
    111       num_rec = 1;
    112     } else {
    113       ++num_rec;
    114     }
    115   }
    116   if (fileindex_org == 0 || fileindex_rec == 0) {
    117     fprintf(stderr, "Missing filenames\n");
    118     PrintHelp(argv[0]);
    119   }
    120   if (num_skip_org < 0) {
    121     fprintf(stderr, "Skipped frames incorrect\n");
    122     PrintHelp(argv[0]);
    123   }
    124   if (num_frames < 0) {
    125     fprintf(stderr, "Number of frames incorrect\n");
    126     PrintHelp(argv[0]);
    127   }
    128 
    129   int org_width, org_height;
    130   int rec_width, rec_height;
    131   bool org_res_avail = ExtractResolutionFromFilename(argv[fileindex_org],
    132                                                      &org_width, &org_height);
    133   bool rec_res_avail = ExtractResolutionFromFilename(argv[fileindex_rec],
    134                                                      &rec_width, &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,
    162                          int src_stride_argb,
    163                          int src_width,
    164                          int src_height,
    165                          uint8* dst_argb,
    166                          int dst_stride_argb,
    167                          int dst_width,
    168                          int dst_height,
    169                          libyuv::FilterMode filtering) {
    170   for (int y = 0; y < dst_height; y += kTileY) {
    171     for (int x = 0; x < dst_width; x += kTileX) {
    172       int clip_width = kTileX;
    173       if (x + clip_width > dst_width) {
    174         clip_width = dst_width - x;
    175       }
    176       int clip_height = kTileY;
    177       if (y + clip_height > dst_height) {
    178         clip_height = dst_height - y;
    179       }
    180       int r = libyuv::ARGBScaleClip(src_argb, src_stride_argb, src_width,
    181                                     src_height, dst_argb, dst_stride_argb,
    182                                     dst_width, dst_height, x, y, clip_width,
    183                                     clip_height, filtering);
    184       if (r) {
    185         return r;
    186       }
    187     }
    188   }
    189   return 0;
    190 }
    191 
    192 int main(int argc, const char* argv[]) {
    193   ParseOptions(argc, argv);
    194 
    195   // Open original file (first file argument)
    196   FILE* const file_org = fopen(argv[fileindex_org], "rb");
    197   if (file_org == NULL) {
    198     fprintf(stderr, "Cannot open %s\n", argv[fileindex_org]);
    199     exit(1);
    200   }
    201 
    202   // Open all files to convert to
    203   FILE** file_rec = new FILE*[num_rec];
    204   memset(file_rec, 0, num_rec * sizeof(FILE*));  // NOLINT
    205   for (int cur_rec = 0; cur_rec < num_rec; ++cur_rec) {
    206     file_rec[cur_rec] = fopen(argv[fileindex_rec + cur_rec], "wb");
    207     if (file_rec[cur_rec] == NULL) {
    208       fprintf(stderr, "Cannot open %s\n", argv[fileindex_rec + cur_rec]);
    209       fclose(file_org);
    210       for (int i = 0; i < cur_rec; ++i) {
    211         fclose(file_rec[i]);
    212       }
    213       delete[] file_rec;
    214       exit(1);
    215     }
    216   }
    217 
    218   bool org_is_yuv = strstr(argv[fileindex_org], "_P420.") != NULL;
    219   bool org_is_argb = strstr(argv[fileindex_org], "_ARGB.") != NULL;
    220   if (!org_is_yuv && !org_is_argb) {
    221     fprintf(stderr, "Original format unknown %s\n", argv[fileindex_org]);
    222     exit(1);
    223   }
    224   int org_size = Abs(image_width) * Abs(image_height) * 4;  // ARGB
    225   // Input is YUV
    226   if (org_is_yuv) {
    227     const int y_size = Abs(image_width) * Abs(image_height);
    228     const int uv_size =
    229         ((Abs(image_width) + 1) / 2) * ((Abs(image_height) + 1) / 2);
    230     org_size = y_size + 2 * uv_size;  // YUV original.
    231   }
    232 
    233   const int dst_size = dst_width * dst_height * 4;  // ARGB scaled
    234   const int y_size = dst_width * dst_height;
    235   const int uv_size = ((dst_width + 1) / 2) * ((dst_height + 1) / 2);
    236   const size_t total_size = y_size + 2 * uv_size;
    237 #if defined(_MSC_VER)
    238   _fseeki64(file_org,
    239             static_cast<__int64>(num_skip_org) * static_cast<__int64>(org_size),
    240             SEEK_SET);
    241 #else
    242   fseek(file_org, num_skip_org * total_size, SEEK_SET);
    243 #endif
    244 
    245   uint8* const ch_org = new uint8[org_size];
    246   uint8* const ch_dst = new uint8[dst_size];
    247   uint8* const ch_rec = new uint8[total_size];
    248   if (ch_org == NULL || ch_rec == NULL) {
    249     fprintf(stderr, "No memory available\n");
    250     fclose(file_org);
    251     for (int i = 0; i < num_rec; ++i) {
    252       fclose(file_rec[i]);
    253     }
    254     delete[] ch_org;
    255     delete[] ch_dst;
    256     delete[] ch_rec;
    257     delete[] file_rec;
    258     exit(1);
    259   }
    260 
    261   if (verbose) {
    262     printf("Size: %dx%d to %dx%d\n", image_width, image_height, dst_width,
    263            dst_height);
    264   }
    265 
    266   int number_of_frames;
    267   for (number_of_frames = 0;; ++number_of_frames) {
    268     if (num_frames && number_of_frames >= num_frames)
    269       break;
    270 
    271     // Load original YUV or ARGB frame.
    272     size_t bytes_org =
    273         fread(ch_org, sizeof(uint8), static_cast<size_t>(org_size), file_org);
    274     if (bytes_org < static_cast<size_t>(org_size))
    275       break;
    276 
    277     // TODO(fbarchard): Attenuate doesnt need to know dimensions.
    278     // ARGB attenuate frame
    279     if (org_is_argb && attenuate) {
    280       libyuv::ARGBAttenuate(ch_org, 0, ch_org, 0, org_size / 4, 1);
    281     }
    282     // ARGB unattenuate frame
    283     if (org_is_argb && unattenuate) {
    284       libyuv::ARGBUnattenuate(ch_org, 0, ch_org, 0, org_size / 4, 1);
    285     }
    286 
    287     for (int cur_rec = 0; cur_rec < num_rec; ++cur_rec) {
    288       // Scale YUV or ARGB frame.
    289       if (org_is_yuv) {
    290         int src_width = Abs(image_width);
    291         int src_height = Abs(image_height);
    292         int half_src_width = (src_width + 1) / 2;
    293         int half_src_height = (src_height + 1) / 2;
    294         int half_dst_width = (dst_width + 1) / 2;
    295         int half_dst_height = (dst_height + 1) / 2;
    296         I420Scale(
    297             ch_org, src_width, ch_org + src_width * src_height, half_src_width,
    298             ch_org + src_width * src_height + half_src_width * half_src_height,
    299             half_src_width, image_width, image_height, ch_rec, dst_width,
    300             ch_rec + dst_width * dst_height, half_dst_width,
    301             ch_rec + dst_width * dst_height + half_dst_width * half_dst_height,
    302             half_dst_width, dst_width, dst_height,
    303             static_cast<libyuv::FilterMode>(filter));
    304       } else {
    305         TileARGBScale(ch_org, Abs(image_width) * 4, image_width, image_height,
    306                       ch_dst, dst_width * 4, dst_width, dst_height,
    307                       static_cast<libyuv::FilterMode>(filter));
    308       }
    309       bool rec_is_yuv = strstr(argv[fileindex_rec + cur_rec], "_P420.") != NULL;
    310       bool rec_is_argb =
    311           strstr(argv[fileindex_rec + cur_rec], "_ARGB.") != NULL;
    312       if (!rec_is_yuv && !rec_is_argb) {
    313         fprintf(stderr, "Output format unknown %s\n",
    314                 argv[fileindex_rec + cur_rec]);
    315         continue;  // Advance to next file.
    316       }
    317 
    318       // Convert ARGB to YUV.
    319       if (!org_is_yuv && rec_is_yuv) {
    320         int half_width = (dst_width + 1) / 2;
    321         int half_height = (dst_height + 1) / 2;
    322         libyuv::ARGBToI420(
    323             ch_dst, dst_width * 4, ch_rec, dst_width,
    324             ch_rec + dst_width * dst_height, half_width,
    325             ch_rec + dst_width * dst_height + half_width * half_height,
    326             half_width, dst_width, dst_height);
    327       }
    328 
    329       // Output YUV or ARGB frame.
    330       if (rec_is_yuv) {
    331         size_t bytes_rec =
    332             fwrite(ch_rec, sizeof(uint8), static_cast<size_t>(total_size),
    333                    file_rec[cur_rec]);
    334         if (bytes_rec < static_cast<size_t>(total_size))
    335           break;
    336       } else {
    337         size_t bytes_rec =
    338             fwrite(ch_dst, sizeof(uint8), static_cast<size_t>(dst_size),
    339                    file_rec[cur_rec]);
    340         if (bytes_rec < static_cast<size_t>(dst_size))
    341           break;
    342       }
    343       if (verbose) {
    344         printf("%5d", number_of_frames);
    345       }
    346       if (verbose) {
    347         printf("\t%s", argv[fileindex_rec + cur_rec]);
    348         printf("\n");
    349       }
    350     }
    351   }
    352 
    353   fclose(file_org);
    354   for (int cur_rec = 0; cur_rec < num_rec; ++cur_rec) {
    355     fclose(file_rec[cur_rec]);
    356   }
    357   delete[] ch_org;
    358   delete[] ch_dst;
    359   delete[] ch_rec;
    360   delete[] file_rec;
    361   return 0;
    362 }
    363