1 files changed, 111 insertions, 0 deletions
diff --git a/src/gsr-info.h b/src/gsr-info.h
new file mode 100644
index 0000000..9764fee
--- /dev/null
+++ b/src/gsr-info.h
@@ -0,0 +1,111 @@
+#pragma once
+
+#include <glib.h>
+#include <stdbool.h>
+
+G_BEGIN_DECLS
+
+/* ── Enums ───────────────────────────────────────────────────────── */
+
+typedef enum {
+    GSR_DISPLAY_SERVER_UNKNOWN,
+    GSR_DISPLAY_SERVER_X11,
+    GSR_DISPLAY_SERVER_WAYLAND,
+} GsrDisplayServer;
+
+typedef enum {
+    GSR_GPU_VENDOR_UNKNOWN,
+    GSR_GPU_VENDOR_AMD,
+    GSR_GPU_VENDOR_INTEL,
+    GSR_GPU_VENDOR_NVIDIA,
+    GSR_GPU_VENDOR_BROADCOM,
+} GsrGpuVendor;
+
+typedef enum {
+    GSR_INFO_EXIT_OK,
+    GSR_INFO_EXIT_FAILED_TO_RUN,
+    GSR_INFO_EXIT_OPENGL_FAILED,
+    GSR_INFO_EXIT_NO_DRM_CARD,
+} GsrInfoExitStatus;
+
+/* ── Data structures ─────────────────────────────────────────────── */
+
+typedef struct {
+    GsrDisplayServer display_server;
+    bool             supports_app_audio;
+    bool             is_steam_deck;
+} GsrSystemInfo;
+
+typedef struct {
+    GsrGpuVendor vendor;
+} GsrGpuInfo;
+
+typedef struct {
+    bool h264;
+    bool h264_software;
+    bool hevc;
+    bool hevc_hdr;
+    bool hevc_10bit;
+    bool av1;
+    bool av1_hdr;
+    bool av1_10bit;
+    bool vp8;
+    bool vp9;
+} GsrSupportedVideoCodecs;
+
+typedef struct {
+    char *name;       /* owned */
+    int   width;
+    int   height;
+} GsrMonitor;
+
+typedef struct {
+    bool         window;
+    bool         focused;
+    bool         portal;
+    GsrMonitor  *monitors;    /* owned array */
+    int          n_monitors;
+} GsrSupportedCaptureOptions;
+
+typedef struct {
+    GsrSystemInfo               system_info;
+    GsrGpuInfo                  gpu_info;
+    GsrSupportedVideoCodecs     supported_video_codecs;
+    GsrSupportedCaptureOptions  supported_capture_options;
+} GsrInfo;
+
+/* ── Audio devices ───────────────────────────────────────────────── */
+
+typedef struct {
+    char *name;         /* PulseAudio/PipeWire ID, owned */
+    char *description;  /* human-readable label, owned */
+} GsrAudioDevice;
+
+/* ── Functions ───────────────────────────────────────────────────── */
+
+GsrInfoExitStatus  gsr_info_load          (GsrInfo *info);
+void               gsr_info_clear         (GsrInfo *info);
+
+bool               gsr_info_is_codec_supported
+                                           (const GsrInfo *info,
+                                            const char    *codec_id);
+
+bool               gsr_info_is_capture_option_enabled
+                                           (const GsrInfo *info,
+                                            const char    *option_id);
+
+/**
+ * Returns the first usable HW video codec name (h264 > hevc > av1 > vp8 > vp9),
+ * or NULL if none supported.
+ */
+const char        *gsr_info_get_first_usable_hw_video_codec(const GsrInfo *info);
+
+/* Audio device / application queries (separate commands) */
+GsrAudioDevice    *gsr_audio_devices_get  (int *n_devices);
+void               gsr_audio_devices_free (GsrAudioDevice *devices,
+                                           int              n_devices);
+
+char             **gsr_application_audio_get (int *n_apps);
+void               gsr_application_audio_free(char **apps, int n_apps);
+
+G_END_DECLS