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gstreamer/gst/vaapi/gstvaapipostproc.c
Gwenole Beauchesne 1d1f18bcbe vaapipostproc: fix "mixed" mode deinterlacing. 
In "mixed" interlaced streams, the buffer contains additional flags that
specify whether the frame contained herein is interlaced or not. This means
that we can alternatively get progressive or interlaced frames. Make sure
to disable deinterlacing at the VPP level when the source buffer is no longer
interlaced.
2013-11-22 10:04:45 +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, &postproc->display);
if (postproc->uploader)
gst_vaapi_uploader_ensure_display(postproc->uploader, postproc->display);
}
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_display_replace(&postproc->display, display);
}
}
#endif
static inline gboolean
gst_vaapipostproc_ensure_display(GstVaapiPostproc *postproc)
{
return gst_vaapi_ensure_display(postproc, GST_VAAPI_DISPLAY_TYPE_ANY,
&postproc->display);
}
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(postproc->display);
if (!postproc->uploader)
return FALSE;
}
if (!gst_vaapi_uploader_ensure_display(postproc->uploader,
postproc->display))
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(postproc->display);
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_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);
}
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_vaapi_display_replace(&postproc->display, NULL);
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);
}
static gboolean
gst_vaapipostproc_start(GstBaseTransform *trans)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
ds_reset(&postproc->deinterlace_state);
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_display_replace(&postproc->display, NULL);
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 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_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;
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;
ds_set_surfaces(ds);
if (!gst_vaapi_filter_set_deinterlacing_references(postproc->filter,
ds->surfaces, ds->num_surfaces, NULL, 0))
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;
}
}
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 (!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);
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, postproc->display))
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(postproc->display);
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(postproc->display,
&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, postproc->display)) {
GST_DEBUG("sharing display %p", postproc->display);
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);
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);
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));
/**
* 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));
/**
* 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));
/**
* 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)
{
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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