The Tor Browser: media/libyuv/util/convert.cc@6474c204b198 (annotated)

media/libyuv/util/convert.cc@6474c204b198 (annotated)

media/libyuv/util/convert.cc

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /*
  *  Copyright 2013 The LibYuv Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS. All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 // Convert an ARGB image to YUV.
 // Usage: convert src_argb.raw dst_yuv.raw
 #ifndef _CRT_SECURE_NO_WARNINGS
 #define _CRT_SECURE_NO_WARNINGS
 #endif
 #include <stddef.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include "libyuv/convert.h"
 #include "libyuv/planar_functions.h"
 #include "libyuv/scale_argb.h"
 // options
 bool verbose = false;
 bool attenuate = false;
 bool unattenuate = false;
 int image_width = 0, image_height = 0;  // original width and height
 int dst_width = 0, dst_height = 0;  // new width and height
 int fileindex_org = 0;  // argv argument contains the original file name.
 int fileindex_rec = 0;  // argv argument contains the reconstructed file name.
 int num_rec = 0;  // Number of reconstructed images.
 int num_skip_org = 0;  // Number of frames to skip in original.
 int num_frames = 0;  // Number of frames to convert.
 int filter = 1;  // Bilinear filter for scaling.
 static __inline uint32 Abs(int32 v) {
   return v >= 0 ? v : -v;
 }
 // Parse PYUV format. ie name.1920x800_24Hz_P420.yuv
 bool ExtractResolutionFromFilename(const char* name,
                                    int* width_ptr,
                                    int* height_ptr) {
   // Isolate the .width_height. section of the filename by searching for a
   // dot or underscore followed by a digit.
   for (int i = 0; name[i]; ++i) {
     if ((name[i] == '.' || name[i] == '_') &&
         name[i + 1] >= '0' && name[i + 1] <= '9') {
       int n = sscanf(name + i + 1, "%dx%d", width_ptr, height_ptr);  // NOLINT
       if (2 == n) {
         return true;
       }
     }
   }
   return false;
 }
 void PrintHelp(const char * program) {
   printf("%s [-options] src_argb.raw dst_yuv.raw\n", program);
   printf(" -s <width> <height> .... specify source resolution.  "
          "Optional if name contains\n"
          "                          resolution (ie. "
          "name.1920x800_24Hz_P420.yuv)\n"
          "                          Negative value mirrors.\n");
   printf(" -d <width> <height> .... specify destination resolution.\n");
   printf(" -f <filter> ............ 0 = point, 1 = bilinear (default).\n");
   printf(" -skip <src_argb> ....... Number of frame to skip of src_argb\n");
   printf(" -frames <num> .......... Number of frames to convert\n");
   printf(" -attenuate ............. Attenuate the ARGB image\n");
   printf(" -unattenuate ........... Unattenuate the ARGB image\n");
   printf(" -v ..................... verbose\n");
   printf(" -h ..................... this help\n");
   exit(0);
 }
 void ParseOptions(int argc, const char* argv[]) {
   if (argc <= 1) PrintHelp(argv[0]);
   for (int c = 1; c < argc; ++c) {
     if (!strcmp(argv[c], "-v")) {
       verbose = true;
     } else if (!strcmp(argv[c], "-attenuate")) {
       attenuate = true;
     } else if (!strcmp(argv[c], "-unattenuate")) {
       unattenuate = true;
     } else if (!strcmp(argv[c], "-h") || !strcmp(argv[c], "-help")) {
       PrintHelp(argv[0]);
     } else if (!strcmp(argv[c], "-s") && c + 2 < argc) {
       image_width = atoi(argv[++c]);    // NOLINT
       image_height = atoi(argv[++c]);   // NOLINT
     } else if (!strcmp(argv[c], "-d") && c + 2 < argc) {
       dst_width = atoi(argv[++c]);    // NOLINT
       dst_height = atoi(argv[++c]);   // NOLINT
     } else if (!strcmp(argv[c], "-skip") && c + 1 < argc) {
       num_skip_org = atoi(argv[++c]);   // NOLINT
     } else if (!strcmp(argv[c], "-frames") && c + 1 < argc) {
       num_frames = atoi(argv[++c]);     // NOLINT
     } else if (!strcmp(argv[c], "-f") && c + 1 < argc) {
       filter = atoi(argv[++c]);     // NOLINT
     } else if (argv[c][0] == '-') {
       fprintf(stderr, "Unknown option. %s\n", argv[c]);
     } else if (fileindex_org == 0) {
       fileindex_org = c;
     } else if (fileindex_rec == 0) {
       fileindex_rec = c;
       num_rec = 1;
     } else {
       ++num_rec;
     }
   }
   if (fileindex_org == 0 || fileindex_rec == 0) {
     fprintf(stderr, "Missing filenames\n");
     PrintHelp(argv[0]);
   }
   if (num_skip_org < 0) {
     fprintf(stderr, "Skipped frames incorrect\n");
     PrintHelp(argv[0]);
   }
   if (num_frames < 0) {
     fprintf(stderr, "Number of frames incorrect\n");
     PrintHelp(argv[0]);
   }
   int org_width, org_height;
   int rec_width, rec_height;
   bool org_res_avail = ExtractResolutionFromFilename(argv[fileindex_org],
                                                      &org_width,
                                                      &org_height);
   bool rec_res_avail = ExtractResolutionFromFilename(argv[fileindex_rec],
                                                      &rec_width,
                                                      &rec_height);
   if (image_width == 0 || image_height == 0) {
     if (org_res_avail) {
       image_width = org_width;
       image_height = org_height;
     } else if (rec_res_avail) {
       image_width = rec_width;
       image_height = rec_height;
     } else {
       fprintf(stderr, "Missing dimensions.\n");
       PrintHelp(argv[0]);
     }
   }
   if (dst_width == 0 || dst_height == 0) {
     if (rec_res_avail) {
       dst_width = rec_width;
       dst_height = rec_height;
     } else {
       dst_width = Abs(image_width);
       dst_height = Abs(image_height);
     }
   }
 }
 static const int kTileX = 32;
 static const int kTileY = 32;
 static int TileARGBScale(const uint8* src_argb, int src_stride_argb,
                          int src_width, int src_height,
                          uint8* dst_argb, int dst_stride_argb,
                          int dst_width, int dst_height,
                          libyuv::FilterMode filtering) {
   for (int y = 0; y < dst_height; y += kTileY) {
     for (int x = 0; x < dst_width; x += kTileX) {
       int clip_width = kTileX;
       if (x + clip_width > dst_width) {
         clip_width = dst_width - x;
       }
       int clip_height = kTileY;
       if (y + clip_height > dst_height) {
         clip_height = dst_height - y;
       }
       int r = libyuv::ARGBScaleClip(src_argb, src_stride_argb,
                                     src_width, src_height,
                                     dst_argb, dst_stride_argb,
                                     dst_width, dst_height,
                                     x, y, clip_width, clip_height, filtering);
       if (r) {
         return r;
       }
     }
   }
   return 0;
 }
 int main(int argc, const char* argv[]) {
   ParseOptions(argc, argv);
   // Open original file (first file argument)
   FILE* const file_org = fopen(argv[fileindex_org], "rb");
   if (file_org == NULL) {
     fprintf(stderr, "Cannot open %s\n", argv[fileindex_org]);
     exit(1);
   }
   // Open all files to convert to
   FILE** file_rec = new FILE* [num_rec];
   memset(file_rec, 0, num_rec * sizeof(FILE*)); // NOLINT
   for (int cur_rec = 0; cur_rec < num_rec; ++cur_rec) {
     file_rec[cur_rec] = fopen(argv[fileindex_rec + cur_rec], "wb");
     if (file_rec[cur_rec] == NULL) {
       fprintf(stderr, "Cannot open %s\n", argv[fileindex_rec + cur_rec]);
       fclose(file_org);
       for (int i = 0; i < cur_rec; ++i) {
         fclose(file_rec[i]);
       }
       delete[] file_rec;
       exit(1);
     }
   }
   bool org_is_yuv = strstr(argv[fileindex_org], "_P420.") != NULL;
   bool org_is_argb = strstr(argv[fileindex_org], "_ARGB.") != NULL;
   if (!org_is_yuv && !org_is_argb) {
     fprintf(stderr, "Original format unknown %s\n", argv[fileindex_org]);
     exit(1);
   }
   int org_size = Abs(image_width) * Abs(image_height) * 4;  // ARGB
   // Input is YUV
   if (org_is_yuv) {
     const int y_size = Abs(image_width) * Abs(image_height);
     const int uv_size = ((Abs(image_width) + 1) / 2) *
         ((Abs(image_height) + 1) / 2);
     org_size = y_size + 2 * uv_size;  // YUV original.
   }
   const int dst_size = dst_width * dst_height * 4;  // ARGB scaled
   const int y_size = dst_width * dst_height;
   const int uv_size = ((dst_width + 1) / 2) * ((dst_height + 1) / 2);
   const size_t total_size = y_size + 2 * uv_size;
 #if defined(_MSC_VER)
   _fseeki64(file_org,
             static_cast<__int64>(num_skip_org) *
             static_cast<__int64>(org_size), SEEK_SET);
 #else
   fseek(file_org, num_skip_org * total_size, SEEK_SET);
 #endif
   uint8* const ch_org = new uint8[org_size];
   uint8* const ch_dst = new uint8[dst_size];
   uint8* const ch_rec = new uint8[total_size];
   if (ch_org == NULL || ch_rec == NULL) {
     fprintf(stderr, "No memory available\n");
     fclose(file_org);
     for (int i = 0; i < num_rec; ++i) {
       fclose(file_rec[i]);
     }
     delete[] ch_org;
     delete[] ch_dst;
     delete[] ch_rec;
     delete[] file_rec;
     exit(1);
   }
   if (verbose) {
     printf("Size: %dx%d to %dx%d\n", image_width, image_height,
            dst_width, dst_height);
   }
   int number_of_frames;
   for (number_of_frames = 0; ; ++number_of_frames) {
     if (num_frames && number_of_frames >= num_frames)
       break;
     // Load original YUV or ARGB frame.
     size_t bytes_org = fread(ch_org, sizeof(uint8),
                              static_cast<size_t>(org_size), file_org);
     if (bytes_org < static_cast<size_t>(org_size))
       break;
     // TODO(fbarchard): Attenuate doesnt need to know dimensions.
     // ARGB attenuate frame
     if (org_is_argb && attenuate) {
       libyuv::ARGBAttenuate(ch_org, 0, ch_org, 0, org_size / 4, 1);
     }
     // ARGB unattenuate frame
     if (org_is_argb && unattenuate) {
       libyuv::ARGBUnattenuate(ch_org, 0, ch_org, 0, org_size / 4, 1);
     }
     for (int cur_rec = 0; cur_rec < num_rec; ++cur_rec) {
       // Scale YUV or ARGB frame.
       if (org_is_yuv) {
         int src_width = Abs(image_width);
         int src_height = Abs(image_height);
         int half_src_width = (src_width + 1) / 2;
         int half_src_height = (src_height + 1) / 2;
         int half_dst_width = (dst_width + 1) / 2;
         int half_dst_height = (dst_height + 1) / 2;
         I420Scale(ch_org, src_width,
                   ch_org + src_width * src_height, half_src_width,
                   ch_org + src_width * src_height +
                       half_src_width * half_src_height,  half_src_width,
                   image_width, image_height,
                   ch_rec, dst_width,
                   ch_rec + dst_width * dst_height, half_dst_width,
                   ch_rec + dst_width * dst_height +
                       half_dst_width * half_dst_height,  half_dst_width,
                   dst_width, dst_height,
                       static_cast<libyuv::FilterMode>(filter));
       } else {
         TileARGBScale(ch_org, Abs(image_width) * 4,
                       image_width, image_height,
                       ch_dst, dst_width * 4,
                       dst_width, dst_height,
                       static_cast<libyuv::FilterMode>(filter));
       }
       bool rec_is_yuv = strstr(argv[fileindex_rec + cur_rec], "_P420.") != NULL;
       bool rec_is_argb =
           strstr(argv[fileindex_rec + cur_rec], "_ARGB.") != NULL;
       if (!rec_is_yuv && !rec_is_argb) {
         fprintf(stderr, "Output format unknown %s\n",
                 argv[fileindex_rec + cur_rec]);
         continue;  // Advance to next file.
       }
       // Convert ARGB to YUV.
       if (!org_is_yuv && rec_is_yuv) {
         int half_width = (dst_width + 1) / 2;
         int half_height = (dst_height + 1) / 2;
         libyuv::ARGBToI420(ch_dst, dst_width * 4,
                            ch_rec, dst_width,
                            ch_rec + dst_width * dst_height, half_width,
                            ch_rec + dst_width * dst_height +
                                half_width * half_height,  half_width,
                            dst_width, dst_height);
       }
       // Output YUV or ARGB frame.
       if (rec_is_yuv) {
         size_t bytes_rec = fwrite(ch_rec, sizeof(uint8),
                                   static_cast<size_t>(total_size),
                                   file_rec[cur_rec]);
         if (bytes_rec < static_cast<size_t>(total_size))
           break;
       } else {
         size_t bytes_rec = fwrite(ch_dst, sizeof(uint8),
                                   static_cast<size_t>(dst_size),
                                   file_rec[cur_rec]);
         if (bytes_rec < static_cast<size_t>(dst_size))
           break;
       }
       if (verbose) {
         printf("%5d", number_of_frames);
       }
       if (verbose) {
         printf("\t%s", argv[fileindex_rec + cur_rec]);
         printf("\n");
       }
     }
   }
   fclose(file_org);
   for (int cur_rec = 0; cur_rec < num_rec; ++cur_rec) {
     fclose(file_rec[cur_rec]);
   }
   delete[] ch_org;
   delete[] ch_dst;
   delete[] ch_rec;
   delete[] file_rec;
   return 0;
 }

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media/libyuv/util/convert.cc@6474c204b198 (annotated)

media/libyuv/util/convert.cc