vulkan: conceal decoder from public API

Since we don't want to expose video decoding API outside of GStreamer, the
header is removed from installation and both source files are renamed as
-private.

The header must remain in gst-libs because is referred by GstVulkanQueue,
which's the decoder factory.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6723>

subprojects/gst-docs/symbols/symbol_index.json

@@ -19449,23 +19449,6 @@
   "GstVulkanCommandPool.pool",
   "GstVulkanCommandPool.queue",
   "GstVulkanCommandPoolClass.parent_class",
-  "GstVulkanDecoder",
-  "GstVulkanDecoder.codec",
-  "GstVulkanDecoder.dedicated_dpb",
-  "GstVulkanDecoder.input_buffer",
-  "GstVulkanDecoder.layered_buffer",
-  "GstVulkanDecoder.layered_dpb",
-  "GstVulkanDecoder.parent",
-  "GstVulkanDecoder.profile",
-  "GstVulkanDecoder.queue",
-  "GstVulkanDecoderClass.parent",
-  "GstVulkanDecoderPicture",
-  "GstVulkanDecoderPicture.dpb",
-  "GstVulkanDecoderPicture.img_view_out",
-  "GstVulkanDecoderPicture.img_view_ref",
-  "GstVulkanDecoderPicture.out",
-  "GstVulkanDecoderPicture.refs",
-  "GstVulkanDecoderPicture.slice_offs",
   "GstVulkanDescriptorCache",
   "GstVulkanDescriptorCache.parent",
   "GstVulkanDescriptorCache.pool",
@@ -44795,22 +44778,6 @@
   "gst_vulkan_command_pool_lock",
   "gst_vulkan_command_pool_unlock",
   "gst_vulkan_create_shader",
-  "gst_vulkan_decoder_append_slice",
-  "gst_vulkan_decoder_caps",
-  "gst_vulkan_decoder_create_dpb_pool",
-  "gst_vulkan_decoder_decode",
-  "gst_vulkan_decoder_flush",
-  "gst_vulkan_decoder_is_started",
-  "gst_vulkan_decoder_out_format",
-  "gst_vulkan_decoder_picture_create_view",
-  "gst_vulkan_decoder_picture_init",
-  "gst_vulkan_decoder_picture_release",
-  "gst_vulkan_decoder_profile_caps",
-  "gst_vulkan_decoder_start",
-  "gst_vulkan_decoder_stop",
-  "gst_vulkan_decoder_update_video_session_parameters",
-  "gst_vulkan_decoder_update_ycbcr_sampler",
-  "gst_vulkan_decoder_wait",
   "gst_vulkan_descriptor_cache_acquire",
   "gst_vulkan_descriptor_cache_new",
   "gst_vulkan_descriptor_pool_create",

subprojects/gst-plugins-bad/ext/vulkan/vkh264dec.c

@@ -26,6 +26,7 @@
 #include <gst/video/video.h>
 #include <gst/vulkan/vulkan.h>
 
+#include "gst/vulkan/gstvkdecoder-private.h"
 #include "gstvulkanelements.h"
 
 typedef struct _GstVulkanH264Decoder GstVulkanH264Decoder;

subprojects/gst-plugins-bad/ext/vulkan/vkh265dec.c

@@ -25,6 +25,7 @@
 
 #include <gst/video/video.h>
 #include <gst/vulkan/vulkan.h>
+#include "gst/vulkan/gstvkdecoder-private.h"
 
 #include "gstvulkanelements.h"
 

subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkdecoder-private.c

@@ -22,7 +22,7 @@
 #include "config.h"
 #endif
 
-#include "gstvkdecoder.h"
+#include "gstvkdecoder-private.h"
 
 #include "gstvkoperation.h"
 #include "gstvkphysicaldevice-private.h"

subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkqueue.c

@@ -23,6 +23,9 @@
 #endif
 
 #include "gstvkqueue.h"
+#if GST_VULKAN_HAVE_VIDEO_EXTENSIONS
+#include "gstvkdecoder-private.h"
+#endif
 
 /**
  * SECTION:vkqueue

subprojects/gst-plugins-bad/gst-libs/gst/vulkan/gstvkqueue.h

@@ -23,9 +23,6 @@
 
 #include <gst/vulkan/gstvkdevice.h>
 #include <gst/vulkan/gstvkcommandpool.h>
-#if GST_VULKAN_HAVE_VIDEO_EXTENSIONS
-#include <gst/vulkan/gstvkdecoder.h>
-#endif
 
 #define GST_TYPE_VULKAN_QUEUE         (gst_vulkan_queue_get_type())
 #define GST_VULKAN_QUEUE(o)           (G_TYPE_CHECK_INSTANCE_CAST((o), GST_TYPE_VULKAN_QUEUE, GstVulkanQueue))

subprojects/gst-plugins-bad/gst-libs/gst/vulkan/meson.build

@@ -333,12 +333,9 @@ static StdVideoH265PictureParameterSet h265_pps;
   endif
   if have_vk_video
     vulkan_conf.set('GST_VULKAN_HAVE_VIDEO_EXTENSIONS', 1)
-    vulkan_priv_sources += files('gstvkvideo-private.c')
-    vulkan_sources += files(
-      'gstvkdecoder.c',
-    )
-    vulkan_headers += files(
-      'gstvkdecoder.h'
+    vulkan_priv_sources += files(
+      'gstvkvideo-private.c',
+      'gstvkdecoder-private.c',
     )
   elif get_option('vulkan-video').enabled()
     error('Vulkan Video extensions headers not found')
@@ -501,4 +498,3 @@ if enabled_vulkan_winsys.contains('wayland')
       sources : vulkan_wayland_gir)
   meson.override_dependency('gstreamer-vulkan-wayland-1.0', gstvulkanwayland_dep)
 endif
-

subprojects/gst-plugins-bad/tests/check/libs/vkvideodecode.c

@@ -26,6 +26,8 @@
 #include <gst/check/gstcheck.h>
 #include <gst/vulkan/vulkan.h>
 
+#include "gst/vulkan/gstvkdecoder-private.h"
+
 static GstVulkanInstance *instance;
 static GstVulkanDevice *device;
 static GstVulkanQueue *video_queue = NULL;