avdevice: add info about media types(s) to AVDeviceInfo

An avdevice, regardless of whether its category says its an audio or
video device, may provide access to devices providing different media
types, or even single devices providing multiple media types. Also, some
devices may provide no media types. dshow is an example encompassing all
of these cases. Users should be provided with this information, so
AVDeviceInfo is extended to provide it.

Bump avdevice version

Signed-off-by: Diederick Niehorster <dcnieho@gmail.com>
Reviewed-by: Roger Pack <rogerdpack2@gmail.com>

libavdevice/avdevice.c

@@ -157,6 +157,7 @@ void avdevice_free_list_devices(AVDeviceInfoList **device_list)
         if (dev) {
             av_freep(&dev->device_name);
             av_freep(&dev->device_description);
+            av_freep(&dev->media_types);
             av_free(dev);
         }
     }

libavdevice/avdevice.h

@@ -457,6 +457,8 @@ void avdevice_capabilities_free(AVDeviceCapabilitiesQuery **caps, AVFormatContex
 typedef struct AVDeviceInfo {
     char *device_name;                   /**< device name, format depends on device */
     char *device_description;            /**< human friendly name */
+    enum AVMediaType *media_types;       /**< array indicating what media types(s), if any, a device can provide. If null, cannot provide any */
+    int nb_media_types;                  /**< length of media_types array, 0 if device cannot provide any media types */
 } AVDeviceInfo;
 
 /**

libavdevice/version.h

@@ -28,8 +28,8 @@
 #include "libavutil/version.h"
 
 #define LIBAVDEVICE_VERSION_MAJOR  59
-#define LIBAVDEVICE_VERSION_MINOR   0
-#define LIBAVDEVICE_VERSION_MICRO 101
+#define LIBAVDEVICE_VERSION_MINOR   1
+#define LIBAVDEVICE_VERSION_MICRO 100
 
 #define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \
                                                LIBAVDEVICE_VERSION_MINOR, \