aviocat: Support avio options

Useful to test protocols that require options to be used.

tools/aviocat.c

@@ -26,7 +26,8 @@
 
 static int usage(const char *argv0, int ret)
 {
-    fprintf(stderr, "%s [-b bytespersec] [-d duration] input_url output_url\n", argv0);
+    fprintf(stderr, "%s [-b bytespersec] [-d duration] [-oi <options>] [-oo <options>] input_url output_url\n", argv0);
+    fprintf(stderr, "<options>: AVOptions expressed as key=value, :-separated\n");
     return ret;
 }
 
@@ -38,6 +39,8 @@ int main(int argc, char **argv)
     int64_t start_time;
     char errbuf[50];
     AVIOContext *input, *output;
+    AVDictionary *in_opts = NULL;
+    AVDictionary *out_opts = NULL;
 
     av_register_all();
     avformat_network_init();
@@ -49,6 +52,20 @@ int main(int argc, char **argv)
         } else if (!strcmp(argv[i], "-d") && i + 1 < argc) {
             duration = atoi(argv[i + 1]);
             i++;
+        } else if (!strcmp(argv[i], "-oi") && i + 1 < argc) {
+            if (av_dict_parse_string(&in_opts, argv[i + 1], "=", ":", 0) < 0) {
+                fprintf(stderr, "Cannot parse option string %s\n",
+                        argv[i + 1]);
+                return usage(argv[0], 1);
+            }
+            i++;
+        } else if (!strcmp(argv[i], "-oo") && i + 1 < argc) {
+            if (av_dict_parse_string(&out_opts, argv[i + 1], "=", ":", 0) < 0) {
+                fprintf(stderr, "Cannot parse option string %s\n",
+                        argv[i + 1]);
+                return usage(argv[0], 1);
+            }
+            i++;
         } else if (!input_url) {
             input_url = argv[i];
         } else if (!output_url) {
@@ -60,7 +77,7 @@ int main(int argc, char **argv)
     if (!output_url)
         return usage(argv[0], 1);
 
-    ret = avio_open2(&input, input_url, AVIO_FLAG_READ, NULL, NULL);
+    ret = avio_open2(&input, input_url, AVIO_FLAG_READ, NULL, &in_opts);
     if (ret) {
         av_strerror(ret, errbuf, sizeof(errbuf));
         fprintf(stderr, "Unable to open %s: %s\n", input_url, errbuf);
@@ -75,7 +92,7 @@ int main(int argc, char **argv)
         }
         bps = size / duration;
     }
-    ret = avio_open2(&output, output_url, AVIO_FLAG_WRITE, NULL, NULL);
+    ret = avio_open2(&output, output_url, AVIO_FLAG_WRITE, NULL, &out_opts);
     if (ret) {
         av_strerror(ret, errbuf, sizeof(errbuf));
         fprintf(stderr, "Unable to open %s: %s\n", output_url, errbuf);
@@ -102,6 +119,8 @@ int main(int argc, char **argv)
     avio_close(output);
 
 fail:
+    av_dict_free(&in_opts);
+    av_dict_free(&out_opts);
     avio_close(input);
     avformat_network_deinit();
     return ret ? 1 : 0;