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gstreamer/gst/vaapi/gstvaapipostproc.c
Gwenole Beauchesne 7e58d60854 plugins: add new base object, store display in there. 
Introduce a new GstVaapiPluginBase object that will contain all common
data structures and perform all common tasks. First step is to have a
single place to hold VA displays.

While we are at it, also make sure to store and subsequently release
the appropriate debug category for the subclasses.
2013-12-18 16:38:57 +01:00

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/*
* gstvaapipostproc.c - VA-API video postprocessing
*
* Copyright (C) 2012-2013 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
/**
* SECTION:gstvaapipostproc
* @short_description: A video postprocessing filter
*
* vaapipostproc consists in various postprocessing algorithms to be
* applied to VA surfaces. So far, only basic bob deinterlacing is
* implemented.
*/
#include "gst/vaapi/sysdeps.h"
#include <gst/video/video.h>
#include "gstvaapipostproc.h"
#include "gstvaapipluginutil.h"
#include "gstvaapivideocontext.h"
#include "gstvaapivideobuffer.h"
#if GST_CHECK_VERSION(1,0,0)
#include "gstvaapivideobufferpool.h"
#include "gstvaapivideomemory.h"
#endif
#define GST_PLUGIN_NAME "vaapipostproc"
#define GST_PLUGIN_DESC "A video postprocessing filter"
GST_DEBUG_CATEGORY_STATIC(gst_debug_vaapipostproc);
#define GST_CAT_DEFAULT gst_debug_vaapipostproc
/* Default templates */
static const char gst_vaapipostproc_sink_caps_str[] =
#if GST_CHECK_VERSION(1,1,0)
GST_VIDEO_CAPS_MAKE_WITH_FEATURES(
GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE, "{ ENCODED, NV12, I420, YV12 }") ", "
#else
GST_VAAPI_SURFACE_CAPS ", "
#endif
GST_CAPS_INTERLACED_MODES "; "
#if GST_CHECK_VERSION(1,0,0)
GST_VIDEO_CAPS_MAKE(GST_VIDEO_FORMATS_ALL) ", "
#else
"video/x-raw-yuv, "
"width = " GST_VIDEO_SIZE_RANGE ", "
"height = " GST_VIDEO_SIZE_RANGE ", "
"framerate = " GST_VIDEO_FPS_RANGE ", "
#endif
GST_CAPS_INTERLACED_MODES;
static const char gst_vaapipostproc_src_caps_str[] =
#if GST_CHECK_VERSION(1,1,0)
GST_VIDEO_CAPS_MAKE_WITH_FEATURES(
GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE, "{ ENCODED, NV12, I420, YV12 }") ", "
#else
GST_VAAPI_SURFACE_CAPS ", "
#endif
GST_CAPS_INTERLACED_FALSE;
static GstStaticPadTemplate gst_vaapipostproc_sink_factory =
GST_STATIC_PAD_TEMPLATE(
"sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS(gst_vaapipostproc_sink_caps_str));
static GstStaticPadTemplate gst_vaapipostproc_src_factory =
GST_STATIC_PAD_TEMPLATE(
"src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS(gst_vaapipostproc_src_caps_str));
/* GstImplementsInterface interface */
#if !GST_CHECK_VERSION(1,0,0)
static gboolean
gst_vaapipostproc_implements_interface_supported(
GstImplementsInterface *iface,
GType type
)
{
return (type == GST_TYPE_VIDEO_CONTEXT);
}
static void
gst_vaapipostproc_implements_iface_init(GstImplementsInterfaceClass *iface)
{
iface->supported = gst_vaapipostproc_implements_interface_supported;
}
#endif
/* GstVideoContext interface */
#if !GST_CHECK_VERSION(1,1,0)
static void
gst_vaapipostproc_set_video_context(
GstVideoContext *context,
const gchar *type,
const GValue *value
)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(context);
gst_vaapi_set_display(type, value, &GST_VAAPI_PLUGIN_BASE_DISPLAY(postproc));
if (postproc->uploader)
gst_vaapi_uploader_ensure_display(postproc->uploader, GST_VAAPI_PLUGIN_BASE_DISPLAY(postproc));
}
static void
gst_video_context_interface_init(GstVideoContextInterface *iface)
{
iface->set_context = gst_vaapipostproc_set_video_context;
}
#define GstVideoContextClass GstVideoContextInterface
#endif
G_DEFINE_TYPE_WITH_CODE(
GstVaapiPostproc,
gst_vaapipostproc,
GST_TYPE_BASE_TRANSFORM,
#if !GST_CHECK_VERSION(1,0,0)
G_IMPLEMENT_INTERFACE(GST_TYPE_IMPLEMENTS_INTERFACE,
gst_vaapipostproc_implements_iface_init);
#endif
#if !GST_CHECK_VERSION(1,1,0)
G_IMPLEMENT_INTERFACE(GST_TYPE_VIDEO_CONTEXT,
gst_video_context_interface_init)
#endif
)
enum {
PROP_0,
PROP_FORMAT,
PROP_WIDTH,
PROP_HEIGHT,
PROP_FORCE_ASPECT_RATIO,
PROP_DEINTERLACE_MODE,
PROP_DEINTERLACE_METHOD,
PROP_DENOISE,
PROP_SHARPEN,
};
#define DEFAULT_FORMAT GST_VIDEO_FORMAT_ENCODED
#define DEFAULT_DEINTERLACE_MODE GST_VAAPI_DEINTERLACE_MODE_AUTO
#define DEFAULT_DEINTERLACE_METHOD GST_VAAPI_DEINTERLACE_METHOD_BOB
#define GST_VAAPI_TYPE_DEINTERLACE_MODE \
gst_vaapi_deinterlace_mode_get_type()
static GType
gst_vaapi_deinterlace_mode_get_type(void)
{
static GType deinterlace_mode_type = 0;
static const GEnumValue mode_types[] = {
{ GST_VAAPI_DEINTERLACE_MODE_AUTO,
"Auto detection", "auto" },
{ GST_VAAPI_DEINTERLACE_MODE_INTERLACED,
"Force deinterlacing", "interlaced" },
{ GST_VAAPI_DEINTERLACE_MODE_DISABLED,
"Never deinterlace", "disabled" },
{ 0, NULL, NULL },
};
if (!deinterlace_mode_type) {
deinterlace_mode_type =
g_enum_register_static("GstVaapiDeinterlaceMode", mode_types);
}
return deinterlace_mode_type;
}
static void
ds_reset(GstVaapiDeinterlaceState *ds)
{
guint i;
for (i = 0; i < G_N_ELEMENTS(ds->buffers); i++)
gst_buffer_replace(&ds->buffers[i], NULL);
ds->buffers_index = 0;
ds->num_surfaces = 0;
ds->deint = FALSE;
ds->tff = FALSE;
}
static void
ds_add_buffer(GstVaapiDeinterlaceState *ds, GstBuffer *buf)
{
gst_buffer_replace(&ds->buffers[ds->buffers_index], buf);
ds->buffers_index = (ds->buffers_index + 1) % G_N_ELEMENTS(ds->buffers);
}
static inline GstBuffer *
ds_get_buffer(GstVaapiDeinterlaceState *ds, guint index)
{
/* Note: the index increases towards older buffers.
i.e. buffer at index 0 means the immediately preceding buffer
in the history, buffer at index 1 means the one preceding the
surface at index 0, etc. */
const guint n = ds->buffers_index + G_N_ELEMENTS(ds->buffers) - index - 1;
return ds->buffers[n % G_N_ELEMENTS(ds->buffers)];
}
static void
ds_set_surfaces(GstVaapiDeinterlaceState *ds)
{
GstVaapiVideoMeta *meta;
guint i;
ds->num_surfaces = 0;
for (i = 0; i < G_N_ELEMENTS(ds->buffers); i++) {
GstBuffer * const buf = ds_get_buffer(ds, i);
if (!buf)
break;
meta = gst_buffer_get_vaapi_video_meta(buf);
ds->surfaces[ds->num_surfaces++] =
gst_vaapi_video_meta_get_surface(meta);
}
}
static GstVaapiFilterOpInfo *
find_filter_op(GPtrArray *filter_ops, GstVaapiFilterOp op)
{
guint i;
if (filter_ops) {
for (i = 0; i < filter_ops->len; i++) {
GstVaapiFilterOpInfo * const filter_op =
g_ptr_array_index(filter_ops, i);
if (filter_op->op == op)
return filter_op;
}
}
return NULL;
}
#if GST_CHECK_VERSION(1,1,0)
static void
gst_vaapipostproc_set_context(GstElement *element, GstContext *context)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(element);
GstVaapiDisplay *display = NULL;
if (gst_vaapi_video_context_get_display(context, &display)) {
GST_INFO_OBJECT(element, "set display %p", display);
GST_VAAPI_PLUGIN_BASE_DISPLAY_REPLACE(postproc, display);
gst_vaapi_display_unref(display);
}
}
#endif
static inline gboolean
gst_vaapipostproc_ensure_display(GstVaapiPostproc *postproc)
{
return gst_vaapi_ensure_display(postproc, GST_VAAPI_DISPLAY_TYPE_ANY,
&GST_VAAPI_PLUGIN_BASE_DISPLAY(postproc));
}
static gboolean
gst_vaapipostproc_ensure_uploader(GstVaapiPostproc *postproc)
{
if (!gst_vaapipostproc_ensure_display(postproc))
return FALSE;
if (!postproc->uploader) {
postproc->uploader = gst_vaapi_uploader_new(
GST_VAAPI_PLUGIN_BASE_DISPLAY(postproc));
if (!postproc->uploader)
return FALSE;
}
if (!gst_vaapi_uploader_ensure_display(postproc->uploader,
GST_VAAPI_PLUGIN_BASE_DISPLAY(postproc)))
return FALSE;
return TRUE;
}
static gboolean
gst_vaapipostproc_ensure_uploader_caps(GstVaapiPostproc *postproc)
{
#if !GST_CHECK_VERSION(1,0,0)
if (postproc->is_raw_yuv && !gst_vaapi_uploader_ensure_caps(
postproc->uploader, postproc->sinkpad_caps, NULL))
return FALSE;
#endif
return TRUE;
}
static gboolean
gst_vaapipostproc_ensure_filter(GstVaapiPostproc *postproc)
{
if (postproc->filter)
return TRUE;
if (!gst_vaapipostproc_ensure_display(postproc))
return FALSE;
postproc->filter = gst_vaapi_filter_new(
GST_VAAPI_PLUGIN_BASE_DISPLAY(postproc));
if (!postproc->filter)
return FALSE;
return TRUE;
}
static gboolean
gst_vaapipostproc_ensure_filter_caps(GstVaapiPostproc *postproc)
{
if (!gst_vaapipostproc_ensure_filter(postproc))
return FALSE;
postproc->filter_ops = gst_vaapi_filter_get_operations(postproc->filter);
if (!postproc->filter_ops)
return FALSE;
postproc->filter_formats = gst_vaapi_filter_get_formats(postproc->filter);
if (!postproc->filter_formats)
return FALSE;
return TRUE;
}
static gboolean
gst_vaapipostproc_create(GstVaapiPostproc *postproc)
{
if (!gst_vaapi_plugin_base_open(GST_VAAPI_PLUGIN_BASE(postproc)))
return FALSE;
if (!gst_vaapipostproc_ensure_display(postproc))
return FALSE;
if (!gst_vaapipostproc_ensure_uploader(postproc))
return FALSE;
if (!gst_vaapipostproc_ensure_uploader_caps(postproc))
return FALSE;
if (gst_vaapipostproc_ensure_filter(postproc))
postproc->use_vpp = TRUE;
return TRUE;
}
static void
gst_vaapipostproc_destroy_filter(GstVaapiPostproc *postproc)
{
if (postproc->filter_formats) {
g_array_unref(postproc->filter_formats);
postproc->filter_formats = NULL;
}
if (postproc->filter_ops) {
g_ptr_array_unref(postproc->filter_ops);
postproc->filter_ops = NULL;
}
gst_vaapi_filter_replace(&postproc->filter, NULL);
gst_vaapi_video_pool_replace(&postproc->filter_pool, NULL);
}
static void
gst_vaapipostproc_destroy(GstVaapiPostproc *postproc)
{
ds_reset(&postproc->deinterlace_state);
#if GST_CHECK_VERSION(1,0,0)
g_clear_object(&postproc->sinkpad_buffer_pool);
#endif
g_clear_object(&postproc->uploader);
gst_vaapipostproc_destroy_filter(postproc);
gst_caps_replace(&postproc->allowed_sinkpad_caps, NULL);
gst_caps_replace(&postproc->sinkpad_caps, NULL);
gst_caps_replace(&postproc->allowed_srcpad_caps, NULL);
gst_caps_replace(&postproc->srcpad_caps, NULL);
gst_vaapi_plugin_base_close(GST_VAAPI_PLUGIN_BASE(postproc));
}
static gboolean
gst_vaapipostproc_start(GstBaseTransform *trans)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
ds_reset(&postproc->deinterlace_state);
if (!gst_vaapi_plugin_base_open(GST_VAAPI_PLUGIN_BASE(postproc)))
return FALSE;
if (!gst_vaapipostproc_ensure_display(postproc))
return FALSE;
return TRUE;
}
static gboolean
gst_vaapipostproc_stop(GstBaseTransform *trans)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
ds_reset(&postproc->deinterlace_state);
gst_vaapi_plugin_base_close(GST_VAAPI_PLUGIN_BASE(postproc));
return TRUE;
}
static gboolean
is_interlaced_buffer(GstVaapiPostproc *postproc, GstBuffer *buf)
{
if (!(postproc->flags & GST_VAAPI_POSTPROC_FLAG_DEINTERLACE))
return FALSE;
switch (GST_VIDEO_INFO_INTERLACE_MODE(&postproc->sinkpad_info)) {
case GST_VIDEO_INTERLACE_MODE_MIXED:
#if GST_CHECK_VERSION(1,0,0)
if (!GST_BUFFER_FLAG_IS_SET(buf, GST_VIDEO_BUFFER_FLAG_INTERLACED))
return FALSE;
#else
if (GST_BUFFER_FLAG_IS_SET(buf, GST_VIDEO_BUFFER_PROGRESSIVE))
return FALSE;
#endif
break;
default:
break;
}
return TRUE;
}
static GstBuffer *
create_output_buffer(GstVaapiPostproc *postproc)
{
GstBuffer *outbuf;
/* Create a raw VA video buffer without GstVaapiVideoMeta attached
to it yet, as this will be done next in the transform() hook */
outbuf = gst_vaapi_video_buffer_new_empty();
if (!outbuf)
goto error_create_buffer;
#if !GST_CHECK_VERSION(1,0,0)
gst_buffer_set_caps(outbuf, postproc->srcpad_caps);
#endif
return outbuf;
/* ERRORS */
error_create_buffer:
{
GST_ERROR("failed to create output video buffer");
return NULL;
}
}
static inline void
append_output_buffer_metadata(GstBuffer *outbuf, GstBuffer *inbuf, guint flags)
{
gst_buffer_copy_into(outbuf, inbuf, flags |
GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_META | GST_BUFFER_COPY_MEMORY,
0, -1);
}
static gboolean
deint_method_is_advanced(GstVaapiDeinterlaceMethod deint_method)
{
gboolean is_advanced;
switch (deint_method) {
case GST_VAAPI_DEINTERLACE_METHOD_MOTION_ADAPTIVE:
case GST_VAAPI_DEINTERLACE_METHOD_MOTION_COMPENSATED:
is_advanced = TRUE;
break;
default:
is_advanced = FALSE;
break;
}
return is_advanced;
}
static GstVaapiDeinterlaceMethod
get_next_deint_method(GstVaapiDeinterlaceMethod deint_method)
{
switch (deint_method) {
case GST_VAAPI_DEINTERLACE_METHOD_MOTION_COMPENSATED:
deint_method = GST_VAAPI_DEINTERLACE_METHOD_MOTION_ADAPTIVE;
break;
default:
/* Default to basic "bob" for all others */
deint_method = GST_VAAPI_DEINTERLACE_METHOD_BOB;
break;
}
return deint_method;
}
static gboolean
set_best_deint_method(GstVaapiPostproc *postproc, guint flags,
GstVaapiDeinterlaceMethod *deint_method_ptr)
{
GstVaapiDeinterlaceMethod deint_method = postproc->deinterlace_method;
gboolean success;
for (;;) {
success = gst_vaapi_filter_set_deinterlacing(postproc->filter,
deint_method, flags);
if (success || deint_method == GST_VAAPI_DEINTERLACE_METHOD_BOB)
break;
deint_method = get_next_deint_method(deint_method);
}
*deint_method_ptr = deint_method;
return success;
}
static GstFlowReturn
gst_vaapipostproc_process_vpp(GstBaseTransform *trans, GstBuffer *inbuf,
GstBuffer *outbuf)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
GstVaapiDeinterlaceState * const ds = &postproc->deinterlace_state;
GstVaapiVideoMeta *inbuf_meta, *outbuf_meta;
GstVaapiSurface *inbuf_surface, *outbuf_surface;
GstVaapiFilterStatus status;
GstClockTime timestamp;
GstFlowReturn ret;
GstBuffer *fieldbuf;
GstVaapiDeinterlaceMethod deint_method;
guint flags, deint_flags;
gboolean tff, deint, deint_refs, deint_changed;
/* Validate filters */
if ((postproc->flags & GST_VAAPI_POSTPROC_FLAG_FORMAT) &&
!gst_vaapi_filter_set_format(postproc->filter, postproc->format))
return GST_FLOW_NOT_SUPPORTED;
if ((postproc->flags & GST_VAAPI_POSTPROC_FLAG_DENOISE) &&
!gst_vaapi_filter_set_denoising_level(postproc->filter,
postproc->denoise_level))
return GST_FLOW_NOT_SUPPORTED;
if ((postproc->flags & GST_VAAPI_POSTPROC_FLAG_SHARPEN) &&
!gst_vaapi_filter_set_denoising_level(postproc->filter,
postproc->sharpen_level))
return GST_FLOW_NOT_SUPPORTED;
inbuf_meta = gst_buffer_get_vaapi_video_meta(inbuf);
if (!inbuf_meta)
goto error_invalid_buffer;
inbuf_surface = gst_vaapi_video_meta_get_surface(inbuf_meta);
timestamp = GST_BUFFER_TIMESTAMP(inbuf);
tff = GST_BUFFER_FLAG_IS_SET(inbuf, GST_VIDEO_BUFFER_FLAG_TFF);
deint = is_interlaced_buffer(postproc, inbuf);
/* Drop references if deinterlacing conditions changed */
deint_changed = deint != ds->deint;
if (deint_changed || (ds->num_surfaces > 0 && tff != ds->tff))
ds_reset(ds);
ds->deint = deint;
ds->tff = tff;
flags = gst_vaapi_video_meta_get_render_flags(inbuf_meta) &
~(GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD|
GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD);
/* First field */
deint_method = postproc->deinterlace_method;
deint_refs = deint_method_is_advanced(deint_method);
if (postproc->flags & GST_VAAPI_POSTPROC_FLAG_DEINTERLACE) {
fieldbuf = create_output_buffer(postproc);
if (!fieldbuf)
goto error_create_buffer;
outbuf_meta = gst_vaapi_video_meta_new_from_pool(postproc->filter_pool);
if (!outbuf_meta)
goto error_create_meta;
outbuf_surface = gst_vaapi_video_meta_get_surface(outbuf_meta);
if (deint) {
deint_flags = (tff ? GST_VAAPI_DEINTERLACE_FLAG_TOPFIELD : 0);
if (tff)
deint_flags |= GST_VAAPI_DEINTERLACE_FLAG_TFF;
if (!set_best_deint_method(postproc, deint_flags, &deint_method))
goto error_op_deinterlace;
if (deint_method != postproc->deinterlace_method) {
GST_DEBUG("unsupported deinterlace-method %u. Using %u instead",
postproc->deinterlace_method, deint_method);
postproc->deinterlace_method = deint_method;
deint_refs = deint_method_is_advanced(deint_method);
}
if (deint_refs) {
ds_set_surfaces(ds);
if (!gst_vaapi_filter_set_deinterlacing_references(
postproc->filter, ds->surfaces, ds->num_surfaces,
NULL, 0))
goto error_op_deinterlace;
}
}
else if (deint_changed) {
// Reset internal filter to non-deinterlacing mode
deint_method = GST_VAAPI_DEINTERLACE_METHOD_NONE;
if (!gst_vaapi_filter_set_deinterlacing(postproc->filter,
deint_method, 0))
goto error_op_deinterlace;
}
status = gst_vaapi_filter_process(postproc->filter, inbuf_surface,
outbuf_surface, flags);
if (status != GST_VAAPI_FILTER_STATUS_SUCCESS)
goto error_process_vpp;
gst_buffer_set_vaapi_video_meta(fieldbuf, outbuf_meta);
gst_vaapi_video_meta_unref(outbuf_meta);
GST_BUFFER_TIMESTAMP(fieldbuf) = timestamp;
GST_BUFFER_DURATION(fieldbuf) = postproc->field_duration;
ret = gst_pad_push(trans->srcpad, fieldbuf);
if (ret != GST_FLOW_OK)
goto error_push_buffer;
}
fieldbuf = NULL;
/* Second field */
outbuf_meta = gst_vaapi_video_meta_new_from_pool(postproc->filter_pool);
if (!outbuf_meta)
goto error_create_meta;
outbuf_surface = gst_vaapi_video_meta_get_surface(outbuf_meta);
if (deint) {
deint_flags = (tff ? 0 : GST_VAAPI_DEINTERLACE_FLAG_TOPFIELD);
if (tff)
deint_flags |= GST_VAAPI_DEINTERLACE_FLAG_TFF;
if (!gst_vaapi_filter_set_deinterlacing(postproc->filter,
deint_method, deint_flags))
goto error_op_deinterlace;
if (deint_refs && !gst_vaapi_filter_set_deinterlacing_references(
postproc->filter, ds->surfaces, ds->num_surfaces, NULL, 0))
goto error_op_deinterlace;
}
else if (deint_changed && !gst_vaapi_filter_set_deinterlacing(
postproc->filter, deint_method, 0))
goto error_op_deinterlace;
status = gst_vaapi_filter_process(postproc->filter, inbuf_surface,
outbuf_surface, flags);
if (status != GST_VAAPI_FILTER_STATUS_SUCCESS)
goto error_process_vpp;
if (!(postproc->flags & GST_VAAPI_POSTPROC_FLAG_DEINTERLACE))
gst_buffer_copy_into(outbuf, inbuf, GST_BUFFER_COPY_TIMESTAMPS, 0, -1);
else {
GST_BUFFER_TIMESTAMP(outbuf) = timestamp + postproc->field_duration;
GST_BUFFER_DURATION(outbuf) = postproc->field_duration;
}
gst_buffer_set_vaapi_video_meta(outbuf, outbuf_meta);
gst_vaapi_video_meta_unref(outbuf_meta);
if (deint && deint_refs)
ds_add_buffer(ds, inbuf);
return GST_FLOW_OK;
/* ERRORS */
error_invalid_buffer:
{
GST_ERROR("failed to validate source buffer");
return GST_FLOW_ERROR;
}
error_create_buffer:
{
GST_ERROR("failed to create output buffer");
return GST_FLOW_ERROR;
}
error_create_meta:
{
GST_ERROR("failed to create new output buffer meta");
gst_buffer_replace(&fieldbuf, NULL);
gst_vaapi_video_meta_unref(outbuf_meta);
return GST_FLOW_ERROR;
}
error_op_deinterlace:
{
GST_ERROR("failed to apply deinterlacing filter");
gst_buffer_replace(&fieldbuf, NULL);
gst_vaapi_video_meta_unref(outbuf_meta);
return GST_FLOW_NOT_SUPPORTED;
}
error_process_vpp:
{
GST_ERROR("failed to apply VPP filters (error %d)", status);
gst_buffer_replace(&fieldbuf, NULL);
gst_vaapi_video_meta_unref(outbuf_meta);
return GST_FLOW_ERROR;
}
error_push_buffer:
{
if (ret != GST_FLOW_FLUSHING)
GST_ERROR("failed to push output buffer to video sink");
return GST_FLOW_ERROR;
}
}
static GstFlowReturn
gst_vaapipostproc_process(GstBaseTransform *trans, GstBuffer *inbuf,
GstBuffer *outbuf)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
GstVaapiVideoMeta *meta;
GstClockTime timestamp;
GstFlowReturn ret;
GstBuffer *fieldbuf;
guint fieldbuf_flags, outbuf_flags, flags;
gboolean tff, deint;
meta = gst_buffer_get_vaapi_video_meta(inbuf);
if (!meta)
goto error_invalid_buffer;
timestamp = GST_BUFFER_TIMESTAMP(inbuf);
tff = GST_BUFFER_FLAG_IS_SET(inbuf, GST_VIDEO_BUFFER_FLAG_TFF);
deint = is_interlaced_buffer(postproc, inbuf);
flags = gst_vaapi_video_meta_get_render_flags(meta) &
~(GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD|
GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD);
/* First field */
fieldbuf = create_output_buffer(postproc);
if (!fieldbuf)
goto error_create_buffer;
append_output_buffer_metadata(fieldbuf, inbuf, 0);
meta = gst_buffer_get_vaapi_video_meta(fieldbuf);
fieldbuf_flags = flags;
fieldbuf_flags |= deint ? (
tff ?
GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD :
GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD) :
GST_VAAPI_PICTURE_STRUCTURE_FRAME;
gst_vaapi_video_meta_set_render_flags(meta, fieldbuf_flags);
GST_BUFFER_TIMESTAMP(fieldbuf) = timestamp;
GST_BUFFER_DURATION(fieldbuf) = postproc->field_duration;
ret = gst_pad_push(trans->srcpad, fieldbuf);
if (ret != GST_FLOW_OK)
goto error_push_buffer;
/* Second field */
append_output_buffer_metadata(outbuf, inbuf, 0);
meta = gst_buffer_get_vaapi_video_meta(outbuf);
outbuf_flags = flags;
outbuf_flags |= deint ? (
tff ?
GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD :
GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD) :
GST_VAAPI_PICTURE_STRUCTURE_FRAME;
gst_vaapi_video_meta_set_render_flags(meta, outbuf_flags);
GST_BUFFER_TIMESTAMP(outbuf) = timestamp + postproc->field_duration;
GST_BUFFER_DURATION(outbuf) = postproc->field_duration;
return GST_FLOW_OK;
/* ERRORS */
error_invalid_buffer:
{
GST_ERROR("failed to validate source buffer");
return GST_FLOW_ERROR;
}
error_create_buffer:
{
GST_ERROR("failed to create output buffer");
return GST_FLOW_EOS;
}
error_push_buffer:
{
if (ret != GST_FLOW_FLUSHING)
GST_ERROR("failed to push output buffer to video sink");
return GST_FLOW_EOS;
}
}
static GstFlowReturn
gst_vaapipostproc_passthrough(GstBaseTransform *trans, GstBuffer *inbuf,
GstBuffer *outbuf)
{
GstVaapiVideoMeta *meta;
/* No video processing needed, simply copy buffer metadata */
meta = gst_buffer_get_vaapi_video_meta(inbuf);
if (!meta)
goto error_invalid_buffer;
append_output_buffer_metadata(outbuf, inbuf, GST_BUFFER_COPY_TIMESTAMPS);
return GST_FLOW_OK;
/* ERRORS */
error_invalid_buffer:
{
GST_ERROR("failed to validate source buffer");
return GST_FLOW_ERROR;
}
}
static gboolean
is_deinterlace_enabled(GstVaapiPostproc *postproc, GstVideoInfo *vip)
{
gboolean deinterlace;
switch (postproc->deinterlace_mode) {
case GST_VAAPI_DEINTERLACE_MODE_AUTO:
deinterlace = GST_VIDEO_INFO_IS_INTERLACED(vip);
break;
case GST_VAAPI_DEINTERLACE_MODE_INTERLACED:
deinterlace = TRUE;
break;
default:
deinterlace = FALSE;
break;
}
return deinterlace;
}
static gboolean
video_info_changed(GstVideoInfo *old_vip, GstVideoInfo *new_vip)
{
if (GST_VIDEO_INFO_FORMAT(old_vip) != GST_VIDEO_INFO_FORMAT(new_vip))
return TRUE;
if (GST_VIDEO_INFO_INTERLACE_MODE(old_vip) !=
GST_VIDEO_INFO_INTERLACE_MODE(new_vip))
return TRUE;
if (GST_VIDEO_INFO_WIDTH(old_vip) != GST_VIDEO_INFO_WIDTH(new_vip))
return TRUE;
if (GST_VIDEO_INFO_HEIGHT(old_vip) != GST_VIDEO_INFO_HEIGHT(new_vip))
return TRUE;
return FALSE;
}
static gboolean
gst_vaapipostproc_update_sink_caps(GstVaapiPostproc *postproc, GstCaps *caps,
gboolean *caps_changed_ptr)
{
GstVideoInfo vi;
gboolean deinterlace;
if (!gst_video_info_from_caps(&vi, caps))
return FALSE;
if (video_info_changed(&vi, &postproc->sinkpad_info))
postproc->sinkpad_info = vi, *caps_changed_ptr = TRUE;
deinterlace = is_deinterlace_enabled(postproc, &vi);
if (deinterlace)
postproc->flags |= GST_VAAPI_POSTPROC_FLAG_DEINTERLACE;
postproc->field_duration = gst_util_uint64_scale(
GST_SECOND, GST_VIDEO_INFO_FPS_D(&vi),
(1 + deinterlace) * GST_VIDEO_INFO_FPS_N(&vi));
postproc->is_raw_yuv = GST_VIDEO_INFO_IS_YUV(&vi);
#if !GST_CHECK_VERSION(1,0,0)
if (postproc->is_raw_yuv) {
/* Ensure the uploader is set up for upstream allocated buffers */
GstVaapiUploader * const uploader = postproc->uploader;
if (!gst_vaapi_uploader_ensure_display(uploader, GST_VAAPI_PLUGIN_BASE_DISPLAY(postproc)))
return FALSE;
if (!gst_vaapi_uploader_ensure_caps(uploader, caps, NULL))
return FALSE;
}
#endif
return TRUE;
}
static gboolean
gst_vaapipostproc_update_src_caps(GstVaapiPostproc *postproc, GstCaps *caps,
gboolean *caps_changed_ptr)
{
GstVideoInfo vi;
if (!gst_video_info_from_caps(&vi, caps))
return FALSE;
if (video_info_changed(&vi, &postproc->srcpad_info))
postproc->srcpad_info = vi, *caps_changed_ptr = TRUE;
if (postproc->format != GST_VIDEO_INFO_FORMAT(&postproc->sinkpad_info))
postproc->flags |= GST_VAAPI_POSTPROC_FLAG_FORMAT;
if ((postproc->width || postproc->height) &&
postproc->width != GST_VIDEO_INFO_WIDTH(&postproc->sinkpad_info) &&
postproc->height != GST_VIDEO_INFO_HEIGHT(&postproc->sinkpad_info))
postproc->flags |= GST_VAAPI_POSTPROC_FLAG_SIZE;
return TRUE;
}
static gboolean
ensure_allowed_sinkpad_caps(GstVaapiPostproc *postproc)
{
GstCaps *out_caps, *yuv_caps;
if (postproc->allowed_sinkpad_caps)
return TRUE;
/* Create VA caps */
#if GST_CHECK_VERSION(1,1,0)
out_caps = gst_static_pad_template_get_caps(
&gst_vaapipostproc_sink_factory);
#else
out_caps = gst_caps_from_string(GST_VAAPI_SURFACE_CAPS ", "
GST_CAPS_INTERLACED_MODES);
#endif
if (!out_caps) {
GST_ERROR("failed to create VA sink caps");
return FALSE;
}
/* Append YUV caps */
if (gst_vaapipostproc_ensure_uploader(postproc)) {
yuv_caps = gst_vaapi_uploader_get_caps(postproc->uploader);
if (yuv_caps) {
out_caps = gst_caps_make_writable(out_caps);
gst_caps_append(out_caps, gst_caps_copy(yuv_caps));
}
else
GST_WARNING("failed to create YUV sink caps");
}
postproc->allowed_sinkpad_caps = out_caps;
/* XXX: append VA/VPP filters */
return TRUE;
}
/* Build list of supported formats */
static gboolean
build_format_list_value(GArray *formats, GValue *out_value)
{
GValue v_format = { 0, };
guint i;
#if GST_CHECK_VERSION(1,0,0)
const gchar *str;
g_value_init(out_value, GST_TYPE_LIST);
g_value_init(&v_format, G_TYPE_STRING);
g_value_set_string(&v_format, "encoded");
gst_value_list_append_value(out_value, &v_format);
for (i = 0; i < formats->len; i++) {
GstVideoFormat const format =
g_array_index(formats, GstVideoFormat, i);
str = gst_vaapi_video_format_to_string(format);
if (!str)
continue;
g_value_set_string(&v_format, str);
gst_value_list_append_value(out_value, &v_format);
}
#else
guint32 fourcc;
g_value_init(out_value, GST_TYPE_LIST);
g_value_init(&v_format, GST_TYPE_FOURCC);
for (i = 0; i < formats->len; i++) {
GstVideoFormat const format =
g_array_index(formats, GstVideoFormat, i);
fourcc = gst_video_format_to_fourcc(format);
if (!fourcc)
continue;
gst_value_set_fourcc(&v_format, fourcc);
gst_value_list_append_value(out_value, &v_format);
}
#endif
g_value_unset(&v_format);
return TRUE;
}
/* Fixup output caps so that to reflect the supported set of pixel formats */
static GstCaps *
expand_allowed_srcpad_caps(GstVaapiPostproc *postproc, GstCaps *caps)
{
GValue value = { 0, };
guint i, num_structures;
gboolean had_filter;
had_filter = postproc->filter != NULL;
if (!had_filter && !gst_vaapipostproc_ensure_filter(postproc))
goto cleanup;
if (!gst_vaapipostproc_ensure_filter_caps(postproc))
goto cleanup;
/* Reset "format" field for each structure */
if (!build_format_list_value(postproc->filter_formats, &value))
goto cleanup;
num_structures = gst_caps_get_size(caps);
for (i = 0; i < num_structures; i++) {
GstStructure * const structure = gst_caps_get_structure(caps, i);
if (!structure)
continue;
gst_structure_set_value(structure, "format", &value);
}
g_value_unset(&value);
cleanup:
if (!had_filter)
gst_vaapipostproc_destroy_filter(postproc);
return caps;
}
static gboolean
ensure_allowed_srcpad_caps(GstVaapiPostproc *postproc)
{
GstCaps *out_caps;
if (postproc->allowed_srcpad_caps)
return TRUE;
/* Create initial caps from pad template */
out_caps = gst_caps_from_string(gst_vaapipostproc_src_caps_str);
if (!out_caps) {
GST_ERROR("failed to create VA src caps");
return FALSE;
}
postproc->allowed_srcpad_caps =
expand_allowed_srcpad_caps(postproc, out_caps);
return postproc->allowed_srcpad_caps != NULL;
}
static void
find_best_size(GstVaapiPostproc *postproc, GstVideoInfo *vip,
guint *width_ptr, guint *height_ptr)
{
guint width, height;
width = GST_VIDEO_INFO_WIDTH(vip);
height = GST_VIDEO_INFO_HEIGHT(vip);
if (postproc->width && postproc->height) {
width = postproc->width;
height = postproc->height;
}
else if (postproc->keep_aspect) {
const gdouble ratio = (gdouble)width / height;
if (postproc->width) {
width = postproc->width;
height = postproc->width / ratio;
}
else if (postproc->height) {
height = postproc->height;
width = postproc->height * ratio;
}
}
else if (postproc->width)
width = postproc->width;
else if (postproc->height)
height = postproc->height;
*width_ptr = width;
*height_ptr = height;
}
static GstCaps *
gst_vaapipostproc_transform_caps_impl(GstBaseTransform *trans,
GstPadDirection direction, GstCaps *caps)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
GstVideoInfo vi;
GstVideoFormat format;
GstCaps *out_caps;
guint width, height;
/* Generate the sink pad caps, that could be fixated afterwards */
if (direction == GST_PAD_SRC) {
if (!ensure_allowed_sinkpad_caps(postproc))
return NULL;
return gst_caps_ref(postproc->allowed_sinkpad_caps);
}
/* Generate complete set of src pad caps if non-fixated sink pad
caps are provided */
if (!gst_caps_is_fixed(caps)) {
if (!ensure_allowed_srcpad_caps(postproc))
return NULL;
return gst_caps_ref(postproc->allowed_srcpad_caps);
}
/* Generate the expected src pad caps, from the current fixated
sink pad caps */
if (!gst_video_info_from_caps(&vi, caps))
return NULL;
// Set double framerate in interlaced mode
if (is_deinterlace_enabled(postproc, &vi)) {
gint fps_n = GST_VIDEO_INFO_FPS_N(&vi);
gint fps_d = GST_VIDEO_INFO_FPS_D(&vi);
if (!gst_util_fraction_multiply(fps_n, fps_d, 2, 1, &fps_n, &fps_d))
return NULL;
GST_VIDEO_INFO_FPS_N(&vi) = fps_n;
GST_VIDEO_INFO_FPS_D(&vi) = fps_d;
}
// Signal the other pad that we only generate progressive frames
GST_VIDEO_INFO_INTERLACE_MODE(&vi) = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
// Update size from user-specified parameters
#if GST_CHECK_VERSION(1,1,0)
format = postproc->format;
#else
format = GST_VIDEO_FORMAT_ENCODED;
#endif
find_best_size(postproc, &vi, &width, &height);
gst_video_info_set_format(&vi, format, width, height);
#if GST_CHECK_VERSION(1,1,0)
out_caps = gst_video_info_to_caps(&vi);
if (!out_caps)
return NULL;
gst_caps_set_features(out_caps, 0,
gst_caps_features_new(GST_CAPS_FEATURE_MEMORY_VAAPI_SURFACE, NULL));
#else
/* XXX: gst_video_info_to_caps() from GStreamer 0.10 does not
reconstruct suitable caps for "encoded" video formats */
out_caps = gst_caps_from_string(GST_VAAPI_SURFACE_CAPS_NAME);
if (!out_caps)
return NULL;
gst_caps_set_simple(out_caps,
"type", G_TYPE_STRING, "vaapi",
"opengl", G_TYPE_BOOLEAN, USE_GLX,
"width", G_TYPE_INT, GST_VIDEO_INFO_WIDTH(&vi),
"height", G_TYPE_INT, GST_VIDEO_INFO_HEIGHT(&vi),
"framerate", GST_TYPE_FRACTION, GST_VIDEO_INFO_FPS_N(&vi),
GST_VIDEO_INFO_FPS_D(&vi),
"pixel-aspect-ratio", GST_TYPE_FRACTION, GST_VIDEO_INFO_PAR_N(&vi),
GST_VIDEO_INFO_PAR_D(&vi),
NULL);
gst_caps_set_interlaced(out_caps, &vi);
#endif
return out_caps;
}
#if GST_CHECK_VERSION(1,0,0)
static GstCaps *
gst_vaapipostproc_transform_caps(GstBaseTransform *trans,
GstPadDirection direction, GstCaps *caps, GstCaps *filter)
{
GstCaps *out_caps;
caps = gst_vaapipostproc_transform_caps_impl(trans, direction, caps);
if (caps && filter) {
out_caps = gst_caps_intersect_full(caps, filter,
GST_CAPS_INTERSECT_FIRST);
gst_caps_unref(caps);
return out_caps;
}
return caps;
}
#else
#define gst_vaapipostproc_transform_caps \
gst_vaapipostproc_transform_caps_impl
#endif
#if GST_CHECK_VERSION(1,0,0)
typedef gsize GstBaseTransformSizeType;
#else
typedef guint GstBaseTransformSizeType;
#endif
static gboolean
gst_vaapipostproc_transform_size(GstBaseTransform *trans,
GstPadDirection direction, GstCaps *caps, GstBaseTransformSizeType size,
GstCaps *othercaps, GstBaseTransformSizeType *othersize)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
if (direction == GST_PAD_SINK || !postproc->is_raw_yuv)
*othersize = 0;
else
*othersize = size;
return TRUE;
}
static GstBuffer *
get_source_buffer(GstVaapiPostproc *postproc, GstBuffer *inbuf)
{
GstVaapiVideoMeta *meta;
GstBuffer *outbuf;
#if GST_CHECK_VERSION(1,0,0)
GstVideoFrame src_frame, out_frame;
#endif
meta = gst_buffer_get_vaapi_video_meta(inbuf);
if (meta)
return gst_buffer_ref(inbuf);
#if GST_CHECK_VERSION(1,0,0)
if (!postproc->is_raw_yuv)
goto error_invalid_buffer;
if (!postproc->sinkpad_buffer_pool)
goto error_no_pool;
if (!gst_buffer_pool_set_active(postproc->sinkpad_buffer_pool, TRUE))
goto error_active_pool;
outbuf = NULL;
if (gst_buffer_pool_acquire_buffer(postproc->sinkpad_buffer_pool,
&outbuf, NULL) != GST_FLOW_OK)
goto error_create_buffer;
if (!gst_video_frame_map(&src_frame, &postproc->sinkpad_info, inbuf,
GST_MAP_READ))
goto error_map_src_buffer;
if (!gst_video_frame_map(&out_frame, &postproc->sinkpad_info, outbuf,
GST_MAP_WRITE))
goto error_map_dst_buffer;
if (!gst_video_frame_copy(&out_frame, &src_frame))
goto error_copy_buffer;
gst_video_frame_unmap(&out_frame);
gst_video_frame_unmap(&src_frame);
gst_buffer_copy_into(outbuf, inbuf, GST_BUFFER_COPY_TIMESTAMPS, 0, -1);
return outbuf;
/* ERRORS */
error_invalid_buffer:
{
GST_ERROR("failed to validate source buffer");
return NULL;
}
error_no_pool:
{
GST_ERROR("no buffer pool was negotiated");
return NULL;
}
error_active_pool:
{
GST_ERROR("failed to activate buffer pool");
return NULL;
}
error_map_dst_buffer:
{
gst_video_frame_unmap(&src_frame);
// fall-through
}
error_map_src_buffer:
{
GST_ERROR("failed to map buffer");
gst_buffer_unref(outbuf);
return NULL;
}
#else
outbuf = gst_vaapi_uploader_get_buffer(postproc->uploader);
if (!outbuf)
goto error_create_buffer;
if (!gst_vaapi_uploader_process(postproc->uploader, inbuf, outbuf))
goto error_copy_buffer;
gst_buffer_copy_metadata(outbuf, inbuf,
GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS);
return outbuf;
#endif
/* ERRORS */
error_create_buffer:
{
GST_ERROR("failed to create buffer");
return NULL;
}
error_copy_buffer:
{
GST_ERROR("failed to upload buffer to VA surface");
#if GST_CHECK_VERSION(1,0,0)
gst_video_frame_unmap(&out_frame);
gst_video_frame_unmap(&src_frame);
#endif
gst_buffer_unref(outbuf);
return NULL;
}
}
static GstFlowReturn
gst_vaapipostproc_transform(GstBaseTransform *trans, GstBuffer *inbuf,
GstBuffer *outbuf)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
GstBuffer *buf;
GstFlowReturn ret;
buf = get_source_buffer(postproc, inbuf);
if (!buf)
return GST_FLOW_ERROR;
ret = GST_FLOW_NOT_SUPPORTED;
if (postproc->flags) {
/* Use VA/VPP extensions to process this frame */
if (postproc->use_vpp &&
postproc->flags != GST_VAAPI_POSTPROC_FLAG_DEINTERLACE) {
ret = gst_vaapipostproc_process_vpp(trans, buf, outbuf);
if (ret != GST_FLOW_NOT_SUPPORTED)
goto done;
GST_WARNING("unsupported VPP filters. Disabling");
postproc->use_vpp = FALSE;
}
/* Only append picture structure meta data (top/bottom field) */
if (postproc->flags & GST_VAAPI_POSTPROC_FLAG_DEINTERLACE) {
ret = gst_vaapipostproc_process(trans, buf, outbuf);
if (ret != GST_FLOW_NOT_SUPPORTED)
goto done;
}
}
/* Fallback: passthrough to the downstream element as is */
ret = gst_vaapipostproc_passthrough(trans, buf, outbuf);
done:
gst_buffer_unref(buf);
return ret;
}
static GstFlowReturn
gst_vaapipostproc_prepare_output_buffer(GstBaseTransform *trans,
GstBuffer *inbuf,
#if !GST_CHECK_VERSION(1,0,0)
gint size, GstCaps *caps,
#endif
GstBuffer **outbuf_ptr)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
*outbuf_ptr = create_output_buffer(postproc);
return *outbuf_ptr ? GST_FLOW_OK : GST_FLOW_ERROR;
}
static gboolean
ensure_sinkpad_buffer_pool(GstVaapiPostproc *postproc, GstCaps *caps)
{
#if GST_CHECK_VERSION(1,0,0)
GstBufferPool *pool;
GstCaps *pool_caps;
GstStructure *config;
GstVideoInfo vi;
gboolean need_pool;
if (!gst_vaapipostproc_ensure_display(postproc))
return FALSE;
if (postproc->sinkpad_buffer_pool) {
config = gst_buffer_pool_get_config(postproc->sinkpad_buffer_pool);
gst_buffer_pool_config_get_params(config, &pool_caps, NULL, NULL, NULL);
need_pool = !gst_caps_is_equal(caps, pool_caps);
gst_structure_free(config);
if (!need_pool)
return TRUE;
g_clear_object(&postproc->sinkpad_buffer_pool);
postproc->sinkpad_buffer_size = 0;
}
pool = gst_vaapi_video_buffer_pool_new(
GST_VAAPI_PLUGIN_BASE_DISPLAY(postproc));
if (!pool)
goto error_create_pool;
gst_video_info_init(&vi);
gst_video_info_from_caps(&vi, caps);
if (GST_VIDEO_INFO_FORMAT(&vi) == GST_VIDEO_FORMAT_ENCODED) {
GST_DEBUG("assume sink pad buffer pool format is NV12");
gst_video_info_set_format(&vi, GST_VIDEO_FORMAT_NV12,
GST_VIDEO_INFO_WIDTH(&vi), GST_VIDEO_INFO_HEIGHT(&vi));
}
postproc->sinkpad_buffer_size = vi.size;
config = gst_buffer_pool_get_config(pool);
gst_buffer_pool_config_set_params(config, caps,
postproc->sinkpad_buffer_size, 0, 0);
gst_buffer_pool_config_add_option(config,
GST_BUFFER_POOL_OPTION_VAAPI_VIDEO_META);
gst_buffer_pool_config_add_option(config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
if (!gst_buffer_pool_set_config(pool, config))
goto error_pool_config;
postproc->sinkpad_buffer_pool = pool;
return TRUE;
/* ERRORS */
error_create_pool:
{
GST_ERROR("failed to create buffer pool");
return FALSE;
}
error_pool_config:
{
GST_ERROR("failed to reset buffer pool config");
gst_object_unref(pool);
return FALSE;
}
#else
return TRUE;
#endif
}
static gboolean
ensure_srcpad_buffer_pool(GstVaapiPostproc *postproc, GstCaps *caps)
{
GstVideoInfo vi;
GstVaapiVideoPool *pool;
gst_video_info_init(&vi);
gst_video_info_from_caps(&vi, caps);
gst_video_info_set_format(&vi, postproc->format,
GST_VIDEO_INFO_WIDTH(&vi), GST_VIDEO_INFO_HEIGHT(&vi));
if (!video_info_changed(&vi, &postproc->filter_pool_info))
return TRUE;
postproc->filter_pool_info = vi;
pool = gst_vaapi_surface_pool_new(GST_VAAPI_PLUGIN_BASE_DISPLAY(postproc),
&postproc->filter_pool_info);
if (!pool)
return FALSE;
gst_vaapi_video_pool_replace(&postproc->filter_pool, pool);
gst_vaapi_video_pool_unref(pool);
return TRUE;
}
static gboolean
gst_vaapipostproc_set_caps(GstBaseTransform *trans, GstCaps *caps,
GstCaps *out_caps)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
gboolean caps_changed = FALSE;
if (!gst_vaapipostproc_update_sink_caps(postproc, caps, &caps_changed))
return FALSE;
if (!gst_vaapipostproc_update_src_caps(postproc, out_caps, &caps_changed))
return FALSE;
if (caps_changed) {
gst_vaapipostproc_destroy(postproc);
gst_caps_replace(&postproc->sinkpad_caps, caps);
gst_caps_replace(&postproc->srcpad_caps, out_caps);
if (!gst_vaapipostproc_create(postproc))
return FALSE;
}
if (!ensure_sinkpad_buffer_pool(postproc, caps))
return FALSE;
if (!ensure_srcpad_buffer_pool(postproc, out_caps))
return FALSE;
return TRUE;
}
static gboolean
gst_vaapipostproc_query(GstBaseTransform *trans, GstPadDirection direction,
GstQuery *query)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
GST_INFO_OBJECT(trans, "query type `%s'", GST_QUERY_TYPE_NAME(query));
if (gst_vaapi_reply_to_query(query, GST_VAAPI_PLUGIN_BASE_DISPLAY(postproc))) {
GST_DEBUG("sharing display %p", GST_VAAPI_PLUGIN_BASE_DISPLAY(postproc));
return TRUE;
}
return GST_BASE_TRANSFORM_CLASS(gst_vaapipostproc_parent_class)->query(
trans, direction, query);
}
#if GST_CHECK_VERSION(1,0,0)
static gboolean
gst_vaapipostproc_propose_allocation(GstBaseTransform *trans,
GstQuery *decide_query, GstQuery *query)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
GstCaps *caps = NULL;
gboolean need_pool;
/* Let vaapidecode allocate the video buffers */
if (!postproc->is_raw_yuv)
return FALSE;
gst_query_parse_allocation(query, &caps, &need_pool);
if (need_pool) {
if (!caps)
goto error_no_caps;
if (!ensure_sinkpad_buffer_pool(postproc, caps))
return FALSE;
gst_query_add_allocation_pool(query, postproc->sinkpad_buffer_pool,
postproc->sinkpad_buffer_size, 0, 0);
}
gst_query_add_allocation_meta(query,
GST_VAAPI_VIDEO_META_API_TYPE, NULL);
gst_query_add_allocation_meta(query,
GST_VIDEO_META_API_TYPE, NULL);
gst_query_add_allocation_meta(query,
GST_VIDEO_CROP_META_API_TYPE, NULL);
gst_query_add_allocation_meta(query,
GST_VIDEO_OVERLAY_COMPOSITION_META_API_TYPE, NULL);
return TRUE;
/* ERRORS */
error_no_caps:
{
GST_ERROR("no caps specified");
return FALSE;
}
}
#endif
static void
gst_vaapipostproc_finalize(GObject *object)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(object);
gst_vaapipostproc_destroy(postproc);
gst_vaapi_plugin_base_finalize(GST_VAAPI_PLUGIN_BASE(postproc));
G_OBJECT_CLASS(gst_vaapipostproc_parent_class)->finalize(object);
}
static void
gst_vaapipostproc_set_property(
GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec
)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(object);
switch (prop_id) {
case PROP_FORMAT:
postproc->format = g_value_get_enum(value);
break;
case PROP_WIDTH:
postproc->width = g_value_get_uint(value);
break;
case PROP_HEIGHT:
postproc->height = g_value_get_uint(value);
break;
case PROP_FORCE_ASPECT_RATIO:
postproc->keep_aspect = g_value_get_boolean(value);
break;
case PROP_DEINTERLACE_MODE:
postproc->deinterlace_mode = g_value_get_enum(value);
break;
case PROP_DEINTERLACE_METHOD:
postproc->deinterlace_method = g_value_get_enum(value);
break;
case PROP_DENOISE:
postproc->denoise_level = g_value_get_float(value);
postproc->flags |= GST_VAAPI_POSTPROC_FLAG_DENOISE;
break;
case PROP_SHARPEN:
postproc->sharpen_level = g_value_get_float(value);
postproc->flags |= GST_VAAPI_POSTPROC_FLAG_SHARPEN;
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
break;
}
}
static void
gst_vaapipostproc_get_property(
GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec
)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(object);
switch (prop_id) {
case PROP_FORMAT:
g_value_set_enum(value, postproc->format);
break;
case PROP_WIDTH:
g_value_set_uint(value, postproc->width);
break;
case PROP_HEIGHT:
g_value_set_uint(value, postproc->height);
break;
case PROP_FORCE_ASPECT_RATIO:
g_value_set_boolean(value, postproc->keep_aspect);
break;
case PROP_DEINTERLACE_MODE:
g_value_set_enum(value, postproc->deinterlace_mode);
break;
case PROP_DEINTERLACE_METHOD:
g_value_set_enum(value, postproc->deinterlace_method);
break;
case PROP_DENOISE:
g_value_set_float(value, postproc->denoise_level);
break;
case PROP_SHARPEN:
g_value_set_float(value, postproc->sharpen_level);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
break;
}
}
static void
gst_vaapipostproc_class_init(GstVaapiPostprocClass *klass)
{
GObjectClass * const object_class = G_OBJECT_CLASS(klass);
GstElementClass * const element_class = GST_ELEMENT_CLASS(klass);
GstBaseTransformClass * const trans_class = GST_BASE_TRANSFORM_CLASS(klass);
GstPadTemplate *pad_template;
GPtrArray *filter_ops;
GstVaapiFilterOpInfo *filter_op;
GST_DEBUG_CATEGORY_INIT(gst_debug_vaapipostproc,
GST_PLUGIN_NAME, 0, GST_PLUGIN_DESC);
gst_vaapi_plugin_base_class_init(GST_VAAPI_PLUGIN_BASE_CLASS(klass));
object_class->finalize = gst_vaapipostproc_finalize;
object_class->set_property = gst_vaapipostproc_set_property;
object_class->get_property = gst_vaapipostproc_get_property;
trans_class->start = gst_vaapipostproc_start;
trans_class->stop = gst_vaapipostproc_stop;
trans_class->transform_caps = gst_vaapipostproc_transform_caps;
trans_class->transform_size = gst_vaapipostproc_transform_size;
trans_class->transform = gst_vaapipostproc_transform;
trans_class->set_caps = gst_vaapipostproc_set_caps;
trans_class->query = gst_vaapipostproc_query;
#if GST_CHECK_VERSION(1,0,0)
trans_class->propose_allocation = gst_vaapipostproc_propose_allocation;
#endif
trans_class->prepare_output_buffer =
gst_vaapipostproc_prepare_output_buffer;
#if GST_CHECK_VERSION(1,1,0)
element_class->set_context = gst_vaapipostproc_set_context;
#endif
gst_element_class_set_static_metadata(element_class,
"VA-API video postprocessing",
"Filter/Converter/Video",
GST_PLUGIN_DESC,
"Gwenole Beauchesne <gwenole.beauchesne@intel.com>");
/* sink pad */
pad_template = gst_static_pad_template_get(&gst_vaapipostproc_sink_factory);
gst_element_class_add_pad_template(element_class, pad_template);
/* src pad */
pad_template = gst_static_pad_template_get(&gst_vaapipostproc_src_factory);
gst_element_class_add_pad_template(element_class, pad_template);
/**
* GstVaapiPostproc:deinterlace-mode:
*
* This selects whether the deinterlacing should always be applied or if
* they should only be applied on content that has the "interlaced" flag
* on the caps.
*/
g_object_class_install_property
(object_class,
PROP_DEINTERLACE_MODE,
g_param_spec_enum("deinterlace-mode",
"Deinterlace mode",
"Deinterlace mode to use",
GST_VAAPI_TYPE_DEINTERLACE_MODE,
DEFAULT_DEINTERLACE_MODE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiPostproc:deinterlace-method:
*
* This selects the deinterlacing method to apply.
*/
g_object_class_install_property
(object_class,
PROP_DEINTERLACE_METHOD,
g_param_spec_enum("deinterlace-method",
"Deinterlace method",
"Deinterlace method to use",
GST_VAAPI_TYPE_DEINTERLACE_METHOD,
DEFAULT_DEINTERLACE_METHOD,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
filter_ops = gst_vaapi_filter_get_operations(NULL);
if (!filter_ops)
return;
/**
* GstVaapiPostproc:format:
*
* The forced output pixel format, expressed as a #GstVideoFormat.
*/
filter_op = find_filter_op(filter_ops, GST_VAAPI_FILTER_OP_FORMAT);
if (filter_op)
g_object_class_install_property(object_class,
PROP_FORMAT, filter_op->pspec);
/**
* GstVaapiPostproc:width:
*
* The forced output width in pixels. If set to zero, the width is
* calculated from the height if aspect ration is preserved, or
* inherited from the sink caps width
*/
g_object_class_install_property
(object_class,
PROP_WIDTH,
g_param_spec_uint("width",
"Width",
"Forced output width",
0, G_MAXINT, 0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiPostproc:height:
*
* The forced output height in pixels. If set to zero, the height
* is calculated from the width if aspect ration is preserved, or
* inherited from the sink caps height
*/
g_object_class_install_property
(object_class,
PROP_HEIGHT,
g_param_spec_uint("height",
"Height",
"Forced output height",
0, G_MAXINT, 0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiPostproc:force-aspect-ratio:
*
* When enabled, scaling respects video aspect ratio; when
* disabled, the video is distorted to fit the width and height
* properties.
*/
g_object_class_install_property
(object_class,
PROP_FORCE_ASPECT_RATIO,
g_param_spec_boolean("force-aspect-ratio",
"Force aspect ratio",
"When enabled, scaling will respect original aspect ratio",
TRUE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiPostproc:denoise:
*
* The level of noise reduction to apply.
*/
filter_op = find_filter_op(filter_ops, GST_VAAPI_FILTER_OP_DENOISE);
if (filter_op)
g_object_class_install_property(object_class,
PROP_DENOISE, filter_op->pspec);
/**
* GstVaapiPostproc:sharpen:
*
* The level of sharpening to apply for positive values, or the
* level of blurring for negative values.
*/
filter_op = find_filter_op(filter_ops, GST_VAAPI_FILTER_OP_SHARPEN);
if (filter_op)
g_object_class_install_property(object_class,
PROP_SHARPEN, filter_op->pspec);
g_ptr_array_unref(filter_ops);
}
static void
gst_vaapipostproc_init(GstVaapiPostproc *postproc)
{
gst_vaapi_plugin_base_init(GST_VAAPI_PLUGIN_BASE(postproc), GST_CAT_DEFAULT);
postproc->format = DEFAULT_FORMAT;
postproc->deinterlace_mode = DEFAULT_DEINTERLACE_MODE;
postproc->deinterlace_method = DEFAULT_DEINTERLACE_METHOD;
postproc->field_duration = GST_CLOCK_TIME_NONE;
postproc->keep_aspect = TRUE;
gst_video_info_init(&postproc->sinkpad_info);
gst_video_info_init(&postproc->srcpad_info);
gst_video_info_init(&postproc->filter_pool_info);
}
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