cmdutils: add opencl command line options to ffmpeg

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

cmdutils.c

@@ -56,6 +56,10 @@
 #include <sys/time.h>
 #include <sys/resource.h>
 #endif
+#if CONFIG_OPENCL
+#include "libavutil/opencl.h"
+#endif
+
 
 static int init_report(const char *env);
 
@@ -955,6 +959,26 @@ int opt_timelimit(void *optctx, const char *opt, const char *arg)
     return 0;
 }
 
+#if CONFIG_OPENCL
+int opt_opencl(void *optctx, const char *opt, const char *arg)
+{
+    char *key, *value;
+    const char *opts = arg;
+    int ret = 0;
+    while (*opts) {
+        ret = av_opt_get_key_value(&opts, "=", ":", 0, &key, &value);
+        if (ret < 0)
+            return ret;
+        ret = av_opencl_set_option(key, value);
+        if (ret < 0)
+            return ret;
+        if (*opts)
+            opts++;
+    }
+    return ret;
+}
+#endif
+
 void print_error(const char *filename, int err)
 {
     char errbuf[128];

cmdutils.h

@@ -90,6 +90,10 @@ int opt_cpuflags(void *optctx, const char *opt, const char *arg);
 
 int opt_codec_debug(void *optctx, const char *opt, const char *arg);
 
+#if CONFIG_OPENCL
+int opt_opencl(void *optctx, const char *opt, const char *arg);
+#endif
+
 /**
  * Limit the execution time.
  */

cmdutils_common_opts.h

@@ -19,3 +19,6 @@
     { "report"     , 0,        {(void*)opt_report}, "generate a 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" },
+    #if CONFIG_OPENCL
+    { "opencl_options", HAS_ARG, {.func_arg = opt_opencl},      "set OpenCL environment options" },
+    #endif