v4l2: select best camera option by default

Display all camera options in --info and --list-v4l2-devices.
Add camera_width, camera_height and camera_fps v4l2 capture options.

1 files changed, 19 insertions, 5 deletions

diff --git a/include/capture/v4l2.h b/include/capture/v4l2.h
index b7665aa..6793fdb 100644
--- a/include/capture/v4l2.h
+++ b/include/capture/v4l2.h
@@ -10,21 +10,35 @@ typedef enum {
 } gsr_capture_v4l2_pixfmt;
 
 typedef struct {
-    bool yuyv;
-    bool mjpeg;
-} gsr_capture_v4l2_supported_pixfmts;
+    uint32_t width;
+    uint32_t height;
+} gsr_capture_v4l2_resolution;
+
+typedef struct {
+    uint32_t denominator;
+    uint32_t numerator;
+} gsr_capture_v4l2_framerate;
+
+typedef struct {
+    gsr_capture_v4l2_pixfmt pixfmt;
+    gsr_capture_v4l2_resolution resolution;
+    gsr_capture_v4l2_framerate framerate;
+} gsr_capture_v4l2_supported_setup;
 
 typedef struct {
     gsr_egl *egl;
     vec2i output_resolution;
     const char *device_path;
     gsr_capture_v4l2_pixfmt pixfmt;
-    int fps;
+    uint32_t camera_fps; /* Set to 0 if the best option should be chosen */
+    gsr_capture_v4l2_resolution camera_resolution; /* Set to 0, 0 if the best option should be chosen */
 } gsr_capture_v4l2_params;
 
 gsr_capture* gsr_capture_v4l2_create(const gsr_capture_v4l2_params *params);
 
-typedef void (*v4l2_devices_query_callback)(const char *path, gsr_capture_v4l2_supported_pixfmts supported_pixfmts, vec2i size, void *userdata);
+const char* gsr_capture_v4l2_pixfmt_to_string(gsr_capture_v4l2_pixfmt pixfmt);
+uint32_t gsr_capture_v4l2_framerate_to_number(gsr_capture_v4l2_framerate framerate);
+typedef void (*v4l2_devices_query_callback)(const char *path, const gsr_capture_v4l2_supported_setup *supported_setup, void *userdata);
 void gsr_capture_v4l2_list_devices(v4l2_devices_query_callback callback, void *userdata);
 
 #endif /* GSR_CAPTURE_V4L2_H */