shithub: libvpx

Info  •  Files  •  Log  •  Branches

Merge "added the ablility to skip first n frames for vpxdec" into experimental

--- a/vpxdec.c

+++ b/vpxdec.c

@@ -77,6 +77,8 @@

                                              "Show progress after each frame decodes");

 static const arg_def_t limitarg = ARG_DEF(NULL, "limit", 1,

                                           "Stop decoding after n frames");

+static const arg_def_t skiparg = ARG_DEF(NULL, "skip", 1,

+                                         "Skip the first n input frames");

 static const arg_def_t postprocarg = ARG_DEF(NULL, "postproc", 0,

                                              "Postprocess decoded frames");

 static const arg_def_t summaryarg = ARG_DEF(NULL, "summary", 0,

@@ -94,7 +96,7 @@

 #endif

 static const arg_def_t *all_args[] = {

   &codecarg, &use_yv12, &use_i420, &flipuvarg, &noblitarg,

-  &progressarg, &limitarg, &postprocarg, &summaryarg, &outputfile,

+  &progressarg, &limitarg, &skiparg, &postprocarg, &summaryarg, &outputfile,

   &threadsarg, &verbosearg,

 #if CONFIG_MD5

   &md5arg,

@@ -666,6 +668,7 @@

   FILE                  *infile;

   int                    frame_in = 0, frame_out = 0, flipuv = 0, noblit = 0, do_md5 = 0, progress = 0;

   int                    stop_after = 0, postproc = 0, summary = 0, quiet = 1;

+  int                    arg_skip = 0;

   vpx_codec_iface_t       *iface = NULL;

   unsigned int           fourcc;

   unsigned long          dx_time = 0;

@@ -728,6 +731,8 @@

       progress = 1;

     else if (arg_match(&arg, &limitarg, argi))

       stop_after = arg_parse_uint(&arg);

+    else if (arg_match(&arg, &skiparg, argi))

+      arg_skip = arg_parse_uint(&arg);

     else if (arg_match(&arg, &postprocarg, argi))

       postproc = 1;

     else if (arg_match(&arg, &md5arg, argi))

@@ -936,6 +941,15 @@

     return EXIT_FAILURE;

   }

 #endif

+

+

+  if(arg_skip)

+    fprintf(stderr, "Skiping first %d frames.\n", arg_skip);

+  while (arg_skip) {

+    if (read_frame(&input, &buf, &buf_sz, &buf_alloc_sz))

+      break;

+    arg_skip--;

+  }

   /* Decode file */

   while (!read_frame(&input, &buf, &buf_sz, &buf_alloc_sz)) {