dshow: add options for allowing filter popup configuration dialogs to be presented to the user

Signed-off-by: rogerdpack <rogerpack2005@gmail.com>

configure

@@ -2487,7 +2487,7 @@ decklink_outdev_extralibs="-lstdc++"
 decklink_indev_deps="decklink pthreads"
 decklink_indev_extralibs="-lstdc++"
 dshow_indev_deps="IBaseFilter"
-dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
+dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32"
 dv1394_indev_deps="dv1394"
 dv1394_indev_select="dv_demuxer"
 fbdev_indev_deps="linux_fb_h"

doc/indevs.texi

@@ -234,6 +234,25 @@ routed to the crossbar device's Video Decoder output pin.
 Select audio input pin number for crossbar device. This will be
 routed to the crossbar device's Audio Decoder output pin.
 
+@item show_video_device_dialog
+If set to @option{true}, before capture starts, popup a display dialog
+to the end user, allowing them to change video filter properties
+and configurations manually.
+Note that for crossbar devices, this may be needed at times to toggle
+between PAL and NTSC input frame rates and sizes, etc.  Possibly 
+enabling different scan rates/frame rates and avoiding green bars at
+the bottom, etc.
+
+@item show_audio_device_dialog
+If set to @option{true}, before capture starts, popup a display dialog
+to the end user, allowing them to change audio filter properties
+and configurations manually.
+
+@item show_crossbar_connection_dialog
+If set to @option{true}, before capture starts, popup a display
+dialog to the end user, allowing them to manually
+modify crossbar pin routings.
+
 @end table
 
 @subsection Examples
@@ -276,6 +295,13 @@ Specify pin names to capture by name or alternative name, specify alternative de
 $ ffmpeg -f dshow -audio_pin_name "Audio Out" -video_pin_name 2 -i video=video="@device_pnp_\\?\pci#ven_1a0a&dev_6200&subsys_62021461&rev_01#4&e2c7dd6&0&00e1#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\{ca465100-deb0-4d59-818f-8c477184adf6}":audio="Microphone"
 @end example
 
+@item
+Configure a crossbar device, specifying crossbar pins, allow user to adjust video capture properties at startup:
+@example
+$ ffmpeg -f dshow -show_video_device_dialog true -crossbar_video_input_pin_number 0
+     -crossbar_audio_input_pin_number 3 -i video="AVerMedia BDA Analog Capture":audio="AVerMedia BDA Analog Capture"
+@end example
+
 @end itemize
 
 @section dv1394

libavdevice/dshow.c

@@ -502,6 +502,53 @@ end:
     return ret;
 }
 
+/**
+ * Pops up a user dialog allowing them to adjust properties for the given filter, if possible.
+ */
+void
+dshow_show_filter_properties(IBaseFilter *device_filter, AVFormatContext *avctx) {
+    ISpecifyPropertyPages *property_pages = NULL;
+    IUnknown *device_filter_iunknown = NULL;
+    HRESULT hr;
+    FILTER_INFO filter_info = {0}; /* a warning on this line is false positive GCC bug 53119 */
+    CAUUID ca_guid = {0};
+
+    hr  = IBaseFilter_QueryInterface(device_filter, &IID_ISpecifyPropertyPages, (void **)&property_pages);
+    if (hr != S_OK) {
+        av_log(avctx, AV_LOG_WARNING, "requested filter does not have a property page to show");
+        goto end;
+    }
+    hr = IBaseFilter_QueryFilterInfo(device_filter, &filter_info);
+    if (hr != S_OK) {
+        goto fail;
+    }
+    hr = IBaseFilter_QueryInterface(device_filter, &IID_IUnknown, (void **)&device_filter_iunknown);
+    if (hr != S_OK) {
+        goto fail;
+    }
+    hr = ISpecifyPropertyPages_GetPages(property_pages, &ca_guid);
+    if (hr != S_OK) {
+        goto fail;
+    }
+    hr = OleCreatePropertyFrame(NULL, 0, 0, filter_info.achName, 1, &device_filter_iunknown, ca_guid.cElems,
+        ca_guid.pElems, 0, 0, NULL);
+    if (hr != S_OK) {
+        goto fail;
+    }
+    goto end;
+fail:
+    av_log(avctx, AV_LOG_ERROR, "Failure showing property pages for filter");
+end:
+    if (property_pages)
+        ISpecifyPropertyPages_Release(property_pages);
+    if (device_filter_iunknown)
+        IUnknown_Release(device_filter_iunknown);
+    if (filter_info.pGraph)
+        IFilterGraph_Release(filter_info.pGraph);
+    if (ca_guid.pElems)
+        CoTaskMemFree(ca_guid.pElems);
+}
+
 /**
  * Cycle through available pins using the device_filter device, of type
  * devtype, retrieve the first output pin and return the pointer to the
@@ -527,6 +574,10 @@ dshow_cycle_pins(AVFormatContext *avctx, enum dshowDeviceType devtype,
                                                  ctx->video_codec_id != AV_CODEC_ID_RAWVIDEO))
                   || (devtype == AudioDevice && (ctx->channels || ctx->sample_rate));
     int format_set = 0;
+    int should_show_properties = (devtype == VideoDevice) ? ctx->show_video_device_dialog : ctx->show_audio_device_dialog;
+
+    if (should_show_properties)
+        dshow_show_filter_properties(device_filter, avctx);
 
     r = IBaseFilter_EnumPins(device_filter, &pins);
     if (r != S_OK) {
@@ -1133,6 +1184,15 @@ static const AVOption options[] = {
     { "audio_pin_name", "select audio capture pin by name", OFFSET(audio_pin_name),AV_OPT_TYPE_STRING, {.str = NULL},  0, 0, AV_OPT_FLAG_ENCODING_PARAM },
     { "crossbar_video_input_pin_number", "set video input pin number for crossbar device", OFFSET(crossbar_video_input_pin_number), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, DEC },
     { "crossbar_audio_input_pin_number", "set audio input pin number for crossbar device", OFFSET(crossbar_audio_input_pin_number), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, DEC },
+    { "show_video_device_dialog", "display property dialog for video capture device", OFFSET(show_video_device_dialog), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, DEC, "show_video_device_dialog" },
+    { "true", "", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, DEC, "show_video_device_dialog" },
+    { "false", "", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, DEC, "show_video_device_dialog" },
+    { "show_audio_device_dialog", "display property dialog for audio capture device", OFFSET(show_audio_device_dialog), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, DEC, "show_audio_device_dialog" },
+    { "true", "", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, DEC, "show_audio_device_dialog" },
+    { "false", "", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, DEC, "show_audio_device_dialog" },
+    { "show_crossbar_connection_dialog", "display property dialog for crossbar connecting pins filter", OFFSET(show_crossbar_connection_dialog), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, DEC, "show_crossbar_connection_dialog" },
+    { "true", "", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, DEC, "show_crossbar_connection_dialog" },
+    { "false", "", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, DEC, "show_crossbar_connection_dialog" },
     { NULL },
 };
 

libavdevice/dshow_capture.h

@@ -298,6 +298,7 @@ struct dshow_ctx {
     char *audio_pin_name;
     int   show_video_device_dialog;
     int   show_audio_device_dialog;
+    int   show_crossbar_connection_dialog;
 
     IBaseFilter *device_filter[2];
     IPin        *device_pin[2];

libavdevice/dshow_crossbar.c

@@ -139,6 +139,7 @@ HRESULT
 dshow_try_setup_crossbar_options(ICaptureGraphBuilder2 *graph_builder2,
     IBaseFilter *device_filter, enum dshowDeviceType devtype, AVFormatContext *avctx)
 {
+    struct dshow_ctx *ctx = avctx->priv_data;
     IAMCrossbar *cross_bar = NULL;
     IBaseFilter *cross_bar_filter = NULL;
     HRESULT hr;
@@ -151,6 +152,12 @@ dshow_try_setup_crossbar_options(ICaptureGraphBuilder2 *graph_builder2,
         goto end;
     }
 
+    if (ctx->show_crossbar_connection_dialog) {
+        hr = IAMCrossbar_QueryInterface(cross_bar, &IID_IBaseFilter, (void **) &cross_bar_filter);
+        if (hr != S_OK)
+            goto end;
+        dshow_show_filter_properties(cross_bar_filter, avctx);
+    }
     hr = setup_crossbar_options(cross_bar, devtype, avctx);
     if (hr != S_OK)
         goto end;