@@ -104,6 +104,14 @@ If set to @option{true}, print a list of devices and exit.

 If set to @option{true}, print a list of selected device's options

 and exit.

+@item video_device_number

+Set video device number for devices with same name (starts at 0,

+defaults to 0).

+

+@item audio_device_number

+Set audio device number for devices with same name (starts at 0,

+defaults to 0).

+

 @end table

 @subsection Examples

@@ -123,6 +131,12 @@ $ ffmpeg -f dshow -i video="Camera"

 @end example

 @item

+Open second video device with name @var{Camera}:

+@example

+$ ffmpeg -f dshow -video_device_number 1 -i video="Camera"

+@end example

+

+@item

 Open video device @var{Camera} and audio device @var{Microphone}:

 @example

 $ ffmpeg -f dshow -i video="Camera":audio="Microphone"

@@ -31,6 +31,8 @@ struct dshow_ctx {

     IGraphBuilder *graph;

     char *device_name[2];

+    int video_device_number;

+    int audio_device_number;

     int   list_options;

     int   list_devices;

@@ -249,6 +251,8 @@ dshow_cycle_devices(AVFormatContext *avctx, ICreateDevEnum *devenum,

     IEnumMoniker *classenum = NULL;

     IMoniker *m = NULL;

     const char *device_name = ctx->device_name[devtype];

+    int skip = (devtype == VideoDevice) ? ctx->video_device_number

+                                        : ctx->audio_device_number;

     int r;

     const GUID *device_guid[2] = { &CLSID_VideoInputDeviceCategory,

@@ -283,6 +287,7 @@ dshow_cycle_devices(AVFormatContext *avctx, ICreateDevEnum *devenum,

             if (strcmp(device_name, buf))

                 goto fail1;

+            if (!skip--)

             IMoniker_BindToObject(m, 0, 0, &IID_IBaseFilter, (void *) &device_filter);

         } else {

             av_log(avctx, AV_LOG_INFO, " \"%s\"\n", buf);

@@ -938,6 +943,8 @@ static const AVOption options[] = {

     { "list_options", "list available options for specified device", OFFSET(list_options), AV_OPT_TYPE_INT, {.dbl=0}, 0, 1, DEC, "list_options" },

     { "true", "", 0, AV_OPT_TYPE_CONST, {.dbl=1}, 0, 0, DEC, "list_options" },

     { "false", "", 0, AV_OPT_TYPE_CONST, {.dbl=0}, 0, 0, DEC, "list_options" },

+    { "video_device_number", "set video device number for devices with same name (starts at 0)", OFFSET(video_device_number), AV_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, DEC },

+    { "audio_device_number", "set audio device number for devices with same name (starts at 0)", OFFSET(audio_device_number), AV_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, DEC },

     { NULL },

 };