public static extern int avdevice_capabilities_create(ref libavdevice.AVDeviceCapabilitiesQuery *caps, libavformat.AVFormatContext *s, ref libavutil.AVDictionary *device_options);
public static extern int avdevice_list_input_sources(libavformat.AVInputFormat *device, string device_name, libavutil.AVDictionary *device_options, ref libavdevice.AVDeviceInfoList *device_list);
public static extern int av_dict_count(libavutil.AVDictionary *m);
public static extern int av_dict_set(ref libavutil.AVDictionary *pm, string key, string value, int flags);
public static extern void av_dict_free(ref libavutil.AVDictionary *m);
public static extern libavutil.AVDictionaryEntry *av_dict_get(libavutil.AVDictionary * m, string key, libavutil.AVDictionaryEntry * prev, int flags);
public static extern int avio_open2(ref libavformat.AVIOContext *s, string url, int flags, libavformat.AVIOInterruptCB *int_cb, ref libavutil.AVDictionary *options);
public static extern void av_dict_copy(ref libavutil.AVDictionary *dst, libavutil.AVDictionary *src, int flags);
public static extern void av_frame_set_metadata(libavutil.AVFrame *frame, libavutil.AVDictionary *val);
public static extern int av_dict_get_string(libavutil.AVDictionary *m, ref System.Text.StringBuilder buffer, sbyte key_val_sep, sbyte pairs_sep);
public static extern int av_dict_get_string(libavutil.AVDictionary *m, sbyte **buffer, sbyte key_val_sep, sbyte pairs_sep);
public static extern int av_dict_parse_string(ref libavutil.AVDictionary *pm, string str, string key_val_sep, string pairs_sep, int flags);
public static extern int avdevice_list_output_sinks(libavformat.AVOutputFormat *device, string device_name, libavutil.AVDictionary *device_options, libavdevice.AVDeviceInfoList **device_list);
