cmdutils: allow specifying the file for -report

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

cmdutils.c

@@ -528,6 +528,17 @@ int opt_loglevel(void *optctx, const char *opt, const char *arg)
     return 0;
 }
 
+int opt_report_file(void *optctx, const char *opt, const char *arg)
+{
+    report_file = fopen(arg, "w");
+    if (!report_file) {
+        av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
+               arg, strerror(errno));
+        return AVERROR(errno);
+    }
+    return 0;
+}
+
 int opt_report(const char *opt)
 {
     char filename[64];

cmdutils.h

@@ -84,6 +84,8 @@ int opt_loglevel(void *optctx, const char *opt, const char *arg);
 
 int opt_report(const char *opt);
 
+int opt_report_file(void *optctx, const char *opt, const char *arg);
+
 int opt_max_alloc(void *optctx, const char *opt, const char *arg);
 
 int opt_cpuflags(void *optctx, const char *opt, const char *arg);

cmdutils_common_opts.h

@@ -19,5 +19,6 @@
     { "debug"      , HAS_ARG,  {.func_arg = opt_codec_debug},   "set debug flags", "flags" },
     { "fdebug"     , HAS_ARG,  {.func_arg = opt_codec_debug},   "set debug flags", "flags" },
     { "report"     , 0,        {(void*)opt_report}, "generate a report" },
+    { "report_file", HAS_ARG,  {.func_arg = opt_report_file},   "filename for storing the report" },
     { "max_alloc"  , HAS_ARG,  {.func_arg = opt_max_alloc},     "set maximum size of a single allocated block", "bytes" },
     { "cpuflags"   , HAS_ARG | OPT_EXPERT, {.func_arg = opt_cpuflags}, "force specific cpu flags", "flags" },