dshow: introduce support for crossbar [multiple input selectable] devices

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

1 files changed, 61 insertions, 0 deletions

diff --git a/libavdevice/dshow_capture.h b/libavdevice/dshow_capture.h
index 09e9b1b15c..602969d8d7 100644
--- a/libavdevice/dshow_capture.h
+++ b/libavdevice/dshow_capture.h
@@ -277,4 +277,65 @@ long          WINAPI libAVFilter_QueryVendorInfo(libAVFilter *, wchar_t **);
 void                 libAVFilter_Destroy(libAVFilter *);
 libAVFilter         *libAVFilter_Create (void *, void *, enum dshowDeviceType);
 
+/*****************************************************************************
+ * dshow_ctx
+ ****************************************************************************/
+struct dshow_ctx {
+    const AVClass *class;
+
+    IGraphBuilder *graph;
+
+    char *device_name[2];
+    int video_device_number;
+    int audio_device_number;
+
+    int   list_options;
+    int   list_devices;
+    int   audio_buffer_size;
+    int   crossbar_video_input_pin_number;
+    int   crossbar_audio_input_pin_number;
+    char *video_pin_name;
+    char *audio_pin_name;
+    int   show_video_device_dialog;
+    int   show_audio_device_dialog;
+
+    IBaseFilter *device_filter[2];
+    IPin        *device_pin[2];
+    libAVFilter *capture_filter[2];
+    libAVPin    *capture_pin[2];
+
+    HANDLE mutex;
+    HANDLE event[2]; /* event[0] is set by DirectShow
+                      * event[1] is set by callback() */
+    AVPacketList *pktl;
+
+    int eof;
+
+    int64_t curbufsize[2];
+    unsigned int video_frame_num;
+
+    IMediaControl *control;
+    IMediaEvent *media_event;
+
+    enum AVPixelFormat pixel_format;
+    enum AVCodecID video_codec_id;
+    char *framerate;
+
+    int requested_width;
+    int requested_height;
+    AVRational requested_framerate;
+
+    int sample_rate;
+    int sample_size;
+    int channels;
+};
+
+/*****************************************************************************
+ * CrossBar
+ ****************************************************************************/
+HRESULT dshow_try_setup_crossbar_options(ICaptureGraphBuilder2 *graph_builder2,
+    IBaseFilter *device_filter, enum dshowDeviceType devtype, AVFormatContext *avctx);
+
+void dshow_show_filter_properties(IBaseFilter *pFilter, AVFormatContext *avctx);
+
 #endif /* AVDEVICE_DSHOW_H */