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wayland: add supporting for video processing.

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Try to use VA/VPP processing capabilities to handle video cropping and
additional rendering flags that may not be directly supported by the
underlying hardware when exposing a suitable Wayland buffer for the
supplied VA surface. e.g. deinterlacing, different color primaries than
BT.601, etc.
This commit is contained in:
Gwenole Beauchesne 2013-08-27 18:20:08 +02:00
parent 5fdc9a0e95
commit 7759acd2f0
1 changed files with 141 additions and 32 deletions
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173
gst-libs/gst/vaapi/gstvaapiwindow_wayland.c
View file

@ -32,6 +32,8 @@
#include "gstvaapidisplay_wayland.h"
#include "gstvaapidisplay_wayland_priv.h"
#include "gstvaapiutils.h"
#include "gstvaapifilter.h"
#include "gstvaapisurfacepool.h"
#define DEBUG 1
#include "gstvaapidebug.h"
@ -48,6 +50,8 @@ typedef struct _FrameState FrameState;
struct _FrameState {
GstVaapiWindow *window;
GstVaapiSurface *surface;
GstVaapiVideoPool *surface_pool;
struct wl_buffer *buffer;
struct wl_callback *callback;
};
@ -62,6 +66,8 @@ frame_state_new(GstVaapiWindow *window)
return NULL;
frame->window = window;
frame->surface = NULL;
frame->surface_pool = NULL;
frame->buffer = NULL;
frame->callback = NULL;
return frame;
@ -73,6 +79,14 @@ frame_state_free(FrameState *frame)
if (!frame)
return;
if (frame->surface) {
if (frame->surface_pool)
gst_vaapi_video_pool_put_object(frame->surface_pool,
frame->surface);
frame->surface = NULL;
}
gst_vaapi_video_pool_replace(&frame->surface_pool, NULL);
if (frame->buffer) {
wl_buffer_destroy(frame->buffer);
frame->buffer = NULL;
@ -91,8 +105,12 @@ struct _GstVaapiWindowWaylandPrivate {
struct wl_region *opaque_region;
struct wl_event_queue *event_queue;
FrameState *frame;
GstVideoFormat surface_format;
GstVaapiVideoPool *surface_pool;
GstVaapiFilter *filter;
guint is_shown : 1;
guint fullscreen_on_show : 1;
guint use_vpp : 1;
};
/**
@ -246,6 +264,8 @@ gst_vaapi_window_wayland_create(
if (priv->fullscreen_on_show)
gst_vaapi_window_wayland_set_fullscreen(window, TRUE);
priv->surface_format = GST_VIDEO_FORMAT_ENCODED;
priv->use_vpp = GST_VAAPI_DISPLAY_HAS_VPP(GST_VAAPI_OBJECT_DISPLAY(window));
priv->is_shown = TRUE;
return TRUE;
@ -276,6 +296,9 @@ gst_vaapi_window_wayland_destroy(GstVaapiWindow * window)
wl_event_queue_destroy(priv->event_queue);
priv->event_queue = NULL;
}
gst_vaapi_filter_replace(&priv->filter, NULL);
gst_vaapi_video_pool_replace(&priv->surface_pool, NULL);
}
static gboolean
@ -318,6 +341,74 @@ static const struct wl_callback_listener frame_callback_listener = {
frame_redraw_callback
};
static GstVaapiSurface *
vpp_convert(
GstVaapiWindow *window,
GstVaapiSurface *surface,
const GstVaapiRectangle *src_rect,
const GstVaapiRectangle *dst_rect,
guint flags
)
{
GstVaapiWindowWaylandPrivate * const priv =
GST_VAAPI_WINDOW_WAYLAND_GET_PRIVATE(window);
GstVaapiDisplay * const display = GST_VAAPI_OBJECT_DISPLAY(window);
GstVaapiSurface *vpp_surface = NULL;
GstVaapiFilterStatus status;
GstVideoInfo vi;
/* Ensure VA surface pool is created */
/* XXX: optimize the surface format to use. e.g. YUY2 */
if (!priv->surface_pool) {
gst_video_info_set_format(&vi, priv->surface_format,
window->width, window->height);
priv->surface_pool = gst_vaapi_surface_pool_new(display, &vi);
if (!priv->surface_pool)
return NULL;
gst_vaapi_filter_replace(&priv->filter, NULL);
}
/* Ensure VPP pipeline is built */
if (!priv->filter) {
priv->filter = gst_vaapi_filter_new(display);
if (!priv->filter)
goto error_create_filter;
if (!gst_vaapi_filter_set_format(priv->filter, priv->surface_format))
goto error_unsupported_format;
}
if (!gst_vaapi_filter_set_cropping_rectangle(priv->filter, src_rect))
return NULL;
if (!gst_vaapi_filter_set_target_rectangle(priv->filter, dst_rect))
return NULL;
/* Post-process the decoded source surface */
vpp_surface = gst_vaapi_video_pool_get_object(priv->surface_pool);
if (!vpp_surface)
return NULL;
status = gst_vaapi_filter_process(priv->filter, surface, vpp_surface,
flags);
if (status != GST_VAAPI_FILTER_STATUS_SUCCESS)
goto error_process_filter;
return vpp_surface;
/* ERRORS */
error_create_filter:
GST_WARNING("failed to create VPP filter. Disabling");
priv->use_vpp = FALSE;
return NULL;
error_unsupported_format:
GST_ERROR("unsupported render target format %s",
gst_vaapi_video_format_to_string(priv->surface_format));
priv->use_vpp = FALSE;
return NULL;
error_process_filter:
GST_ERROR("failed to process surface %" GST_VAAPI_ID_FORMAT " (error %d)",
GST_VAAPI_ID_ARGS(GST_VAAPI_OBJECT_ID(surface)), status);
gst_vaapi_video_pool_put_object(priv->surface_pool, vpp_surface);
return NULL;
}
static gboolean
gst_vaapi_window_wayland_render(
GstVaapiWindow *window,
@ -334,49 +425,62 @@ gst_vaapi_window_wayland_render(
struct wl_buffer *buffer;
FrameState *frame;
guint width, height, va_flags;
VASurfaceID surface_id;
VAStatus status;
gboolean need_vpp = FALSE;
/* XXX: use VPP to support unusual source and destination rectangles */
/* Check that we don't need to crop source VA surface */
gst_vaapi_surface_get_size(surface, &width, &height);
if (src_rect->x != 0 ||
src_rect->y != 0 ||
src_rect->width != width ||
src_rect->height != height) {
GST_ERROR("unsupported source rectangle for rendering");
return FALSE;
}
if (src_rect->x != 0 || src_rect->y != 0)
need_vpp = TRUE;
if (src_rect->width != width || src_rect->height != height)
need_vpp = TRUE;
if (0 && (dst_rect->width != width || dst_rect->height != height)) {
GST_ERROR("unsupported target rectangle for rendering");
return FALSE;
}
/* Check that we don't render to a subregion of this window */
if (dst_rect->x != 0 || dst_rect->y != 0)
need_vpp = TRUE;
if (dst_rect->width != window->width || dst_rect->height != window->height)
need_vpp = TRUE;
surface_id = GST_VAAPI_OBJECT_ID(surface);
if (surface_id == VA_INVALID_ID)
return FALSE;
/* XXX: use VA/VPP for other filters */
GST_VAAPI_OBJECT_LOCK_DISPLAY(window);
va_flags = from_GstVaapiSurfaceRenderFlags(flags);
status = vaGetSurfaceBufferWl(
GST_VAAPI_DISPLAY_VADISPLAY(display),
surface_id,
va_flags & (VA_TOP_FIELD|VA_BOTTOM_FIELD),
&buffer
);
if (status == VA_STATUS_ERROR_FLAG_NOT_SUPPORTED) {
/* XXX: de-interlacing flags not supported, try with VPP? */
/* Try to construct a Wayland buffer from VA surface as is (without VPP) */
if (!need_vpp) {
GST_VAAPI_OBJECT_LOCK_DISPLAY(window);
va_flags = from_GstVaapiSurfaceRenderFlags(flags);
status = vaGetSurfaceBufferWl(
GST_VAAPI_DISPLAY_VADISPLAY(display),
surface_id,
GST_VAAPI_OBJECT_ID(surface),
va_flags & (VA_TOP_FIELD|VA_BOTTOM_FIELD),
&buffer
);
GST_VAAPI_OBJECT_UNLOCK_DISPLAY(window);
if (status == VA_STATUS_ERROR_FLAG_NOT_SUPPORTED)
need_vpp = TRUE;
else if (!vaapi_check_status(status, "vaGetSurfaceBufferWl()"))
return FALSE;
}
/* Try to construct a Wayland buffer with VPP */
if (need_vpp) {
if (priv->use_vpp) {
GstVaapiSurface * const vpp_surface =
vpp_convert(window, surface, src_rect, dst_rect, flags);
if (!vpp_surface)
return FALSE;
surface = vpp_surface;
width = window->width;
height = window->height;
}
GST_VAAPI_OBJECT_LOCK_DISPLAY(window);
status = vaGetSurfaceBufferWl(
GST_VAAPI_DISPLAY_VADISPLAY(display),
GST_VAAPI_OBJECT_ID(surface),
VA_FRAME_PICTURE,
&buffer
);
GST_VAAPI_OBJECT_UNLOCK_DISPLAY(window);
if (!vaapi_check_status(status, "vaGetSurfaceBufferWl()"))
return FALSE;
}
GST_VAAPI_OBJECT_UNLOCK_DISPLAY(window);
if (!vaapi_check_status(status, "vaGetSurfaceBufferWl()"))
return FALSE;
/* Wait for the previous frame to complete redraw */
if (!gst_vaapi_window_wayland_sync(window))
@ -387,6 +491,11 @@ gst_vaapi_window_wayland_render(
return FALSE;
priv->frame = frame;
if (need_vpp && priv->use_vpp) {
frame->surface = surface;
frame->surface_pool = gst_vaapi_video_pool_ref(priv->surface_pool);
}
/* XXX: attach to the specified target rectangle */
GST_VAAPI_OBJECT_LOCK_DISPLAY(window);
wl_surface_attach(priv->surface, buffer, 0, 0);