lavd: add list devices API

Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 2667b37b5c..c990ad60e9 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -261,6 +261,7 @@
 
 struct AVFormatContext;
 
+struct AVDeviceInfoList;
 
 /**
  * @defgroup metadata_api Public Metadata API
@@ -523,6 +524,11 @@ typedef struct AVOutputFormat {
      */
     int (*write_uncoded_frame)(struct AVFormatContext *, int stream_index,
                                AVFrame **frame, unsigned flags);
+    /**
+     * Returns device list with it properties.
+     * @see avdevice_list_devices() for more details.
+     */
+    int (*get_device_list)(struct AVFormatContext *s, struct AVDeviceInfoList *device_list);
 } AVOutputFormat;
 /**
  * @}
@@ -651,6 +657,12 @@ typedef struct AVInputFormat {
      * Active streams are all streams that have AVStream.discard < AVDISCARD_ALL.
      */
     int (*read_seek2)(struct AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags);
+
+    /**
+     * Returns device list with it properties.
+     * @see avdevice_list_devices() for more details.
+     */
+    int (*get_device_list)(struct AVFormatContext *s, struct AVDeviceInfoList *device_list);
 } AVInputFormat;
 /**
  * @}