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gstreamer/gst-libs/gst/vaapi/gstvaapidecoder_objects.c
Sreerenj Balachandran 51151e7aa1 Add initial support for GStreamer 1.0. 
This integrates support for GStreamer API >= 1.0 only in the libgstvaapi
core decoding library. The changes are kept rather minimal here so that
the library retains as little dependency as possible on core GStreamer
functionality.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
2013-04-10 14:58:16 +02:00

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/*
* gstvaapidecoder_objects.c - VA decoder objects helpers
*
* Copyright (C) 2010-2011 Splitted-Desktop Systems
* Copyright (C) 2011-2013 Intel Corporation
*
* 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
*/
#include "sysdeps.h"
#include <string.h>
#include <gst/vaapi/gstvaapicontext.h>
#include "gstvaapidecoder_objects.h"
#include "gstvaapidecoder_priv.h"
#include "gstvaapicompat.h"
#include "gstvaapiutils.h"
#define DEBUG 1
#include "gstvaapidebug.h"
#define GET_DECODER(obj) GST_VAAPI_DECODER_CAST((obj)->parent_instance.codec)
#define GET_CONTEXT(obj) GET_DECODER(obj)->priv->context
#define GET_VA_DISPLAY(obj) GET_DECODER(obj)->priv->va_display
#define GET_VA_CONTEXT(obj) GET_DECODER(obj)->priv->va_context
/* ------------------------------------------------------------------------- */
/* --- Pictures --- */
/* ------------------------------------------------------------------------- */
GST_VAAPI_CODEC_DEFINE_TYPE(GstVaapiPicture, gst_vaapi_picture);
enum {
GST_VAAPI_CREATE_PICTURE_FLAG_CLONE = 1 << 0,
GST_VAAPI_CREATE_PICTURE_FLAG_FIELD = 1 << 1,
};
static void
destroy_slice_cb(gpointer data, gpointer user_data)
{
GstVaapiMiniObject * const object = data;
gst_vaapi_mini_object_unref(object);
}
void
gst_vaapi_picture_destroy(GstVaapiPicture *picture)
{
if (picture->slices) {
g_ptr_array_foreach(picture->slices, destroy_slice_cb, NULL);
g_ptr_array_free(picture->slices, TRUE);
picture->slices = NULL;
}
gst_vaapi_mini_object_replace((GstVaapiMiniObject **)&picture->iq_matrix,
NULL);
gst_vaapi_mini_object_replace((GstVaapiMiniObject **)&picture->huf_table,
NULL);
gst_vaapi_mini_object_replace((GstVaapiMiniObject **)&picture->bitplane,
NULL);
if (picture->proxy) {
gst_vaapi_surface_proxy_unref(picture->proxy);
picture->proxy = NULL;
}
picture->surface_id = VA_INVALID_ID;
picture->surface = NULL;
vaapi_destroy_buffer(GET_VA_DISPLAY(picture), &picture->param_id);
picture->param = NULL;
if (picture->frame) {
gst_video_codec_frame_unref(picture->frame);
picture->frame = NULL;
}
}
gboolean
gst_vaapi_picture_create(
GstVaapiPicture *picture,
const GstVaapiCodecObjectConstructorArgs *args
)
{
gboolean success;
if (args->flags & GST_VAAPI_CREATE_PICTURE_FLAG_CLONE) {
GstVaapiPicture * const parent_picture = GST_VAAPI_PICTURE(args->data);
picture->proxy = gst_vaapi_surface_proxy_ref(parent_picture->proxy);
picture->type = parent_picture->type;
picture->pts = parent_picture->pts;
picture->poc = parent_picture->poc;
// Copy all picture flags but "output"
GST_VAAPI_PICTURE_FLAG_SET(
picture,
GST_VAAPI_PICTURE_FLAGS(parent_picture) &
(GST_VAAPI_PICTURE_FLAG_SKIPPED |
GST_VAAPI_PICTURE_FLAG_REFERENCE |
GST_VAAPI_PICTURE_FLAG_INTERLACED |
GST_VAAPI_PICTURE_FLAG_FF |
GST_VAAPI_PICTURE_FLAG_TFF)
);
picture->structure = parent_picture->structure;
if ((args->flags & GST_VAAPI_CREATE_PICTURE_FLAG_FIELD) &&
GST_VAAPI_PICTURE_IS_INTERLACED(picture)) {
switch (picture->structure) {
case GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD:
picture->structure = GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD;
break;
case GST_VAAPI_PICTURE_STRUCTURE_BOTTOM_FIELD:
picture->structure = GST_VAAPI_PICTURE_STRUCTURE_TOP_FIELD;
break;
}
GST_VAAPI_PICTURE_FLAG_UNSET(picture, GST_VAAPI_PICTURE_FLAG_FF);
}
}
else {
picture->type = GST_VAAPI_PICTURE_TYPE_NONE;
picture->pts = GST_CLOCK_TIME_NONE;
picture->proxy =
gst_vaapi_context_get_surface_proxy(GET_CONTEXT(picture));
if (!picture->proxy)
return FALSE;
picture->structure = GST_VAAPI_PICTURE_STRUCTURE_FRAME;
GST_VAAPI_PICTURE_FLAG_SET(picture, GST_VAAPI_PICTURE_FLAG_FF);
}
picture->surface = gst_vaapi_surface_proxy_get_surface(picture->proxy);
picture->surface_id = gst_vaapi_surface_get_id(picture->surface);
picture->param_id = VA_INVALID_ID;
success = vaapi_create_buffer(
GET_VA_DISPLAY(picture),
GET_VA_CONTEXT(picture),
VAPictureParameterBufferType,
args->param_size,
args->param,
&picture->param_id,
&picture->param
);
if (!success)
return FALSE;
picture->param_size = args->param_size;
picture->slices = g_ptr_array_new();
if (!picture->slices)
return FALSE;
picture->frame = gst_video_codec_frame_ref(
GST_VAAPI_DECODER_CODEC_FRAME(GET_DECODER(picture)));
return TRUE;
}
GstVaapiPicture *
gst_vaapi_picture_new(
GstVaapiDecoder *decoder,
gconstpointer param,
guint param_size
)
{
GstVaapiCodecObject *object;
object = gst_vaapi_codec_object_new(
&GstVaapiPictureClass,
GST_VAAPI_CODEC_BASE(decoder),
param, param_size,
NULL, 0,
0
);
if (!object)
return NULL;
return GST_VAAPI_PICTURE_CAST(object);
}
GstVaapiPicture *
gst_vaapi_picture_new_field(GstVaapiPicture *picture)
{
GstVaapiDecoder * const decoder = GET_DECODER(picture);
GstVaapiCodecObject *object;
object = gst_vaapi_codec_object_new(
gst_vaapi_codec_object_get_class(&picture->parent_instance),
GST_VAAPI_CODEC_BASE(decoder),
NULL, picture->param_size,
picture, 0,
(GST_VAAPI_CREATE_PICTURE_FLAG_CLONE|
GST_VAAPI_CREATE_PICTURE_FLAG_FIELD)
);
if (!object)
return NULL;
return GST_VAAPI_PICTURE_CAST(object);
}
void
gst_vaapi_picture_add_slice(GstVaapiPicture *picture, GstVaapiSlice *slice)
{
g_return_if_fail(GST_VAAPI_IS_PICTURE(picture));
g_return_if_fail(GST_VAAPI_IS_SLICE(slice));
g_ptr_array_add(picture->slices, slice);
}
static gboolean
do_decode(VADisplay dpy, VAContextID ctx, VABufferID *buf_id, void **buf_ptr)
{
VAStatus status;
vaapi_unmap_buffer(dpy, *buf_id, buf_ptr);
status = vaRenderPicture(dpy, ctx, buf_id, 1);
if (!vaapi_check_status(status, "vaRenderPicture()"))
return FALSE;
/* XXX: vaRenderPicture() is meant to destroy the VA buffer implicitly */
vaapi_destroy_buffer(dpy, buf_id);
return TRUE;
}
gboolean
gst_vaapi_picture_decode(GstVaapiPicture *picture)
{
GstVaapiIqMatrix *iq_matrix;
GstVaapiBitPlane *bitplane;
GstVaapiHuffmanTable *huf_table;
VADisplay va_display;
VAContextID va_context;
VAStatus status;
guint i;
g_return_val_if_fail(GST_VAAPI_IS_PICTURE(picture), FALSE);
va_display = GET_VA_DISPLAY(picture);
va_context = GET_VA_CONTEXT(picture);
GST_DEBUG("decode picture 0x%08x", picture->surface_id);
status = vaBeginPicture(va_display, va_context, picture->surface_id);
if (!vaapi_check_status(status, "vaBeginPicture()"))
return FALSE;
if (!do_decode(va_display, va_context, &picture->param_id, &picture->param))
return FALSE;
iq_matrix = picture->iq_matrix;
if (iq_matrix && !do_decode(va_display, va_context,
&iq_matrix->param_id, &iq_matrix->param))
return FALSE;
bitplane = picture->bitplane;
if (bitplane && !do_decode(va_display, va_context,
&bitplane->data_id, (void **)&bitplane->data))
return FALSE;
huf_table = picture->huf_table;
if (huf_table && !do_decode(va_display, va_context,
&huf_table->param_id,
(void **)&huf_table->param))
return FALSE;
for (i = 0; i < picture->slices->len; i++) {
GstVaapiSlice * const slice = g_ptr_array_index(picture->slices, i);
VABufferID va_buffers[2];
vaapi_unmap_buffer(va_display, slice->param_id, NULL);
va_buffers[0] = slice->param_id;
va_buffers[1] = slice->data_id;
status = vaRenderPicture(va_display, va_context, va_buffers, 2);
if (!vaapi_check_status(status, "vaRenderPicture()"))
return FALSE;
vaapi_destroy_buffer(va_display, &slice->param_id);
vaapi_destroy_buffer(va_display, &slice->data_id);
}
status = vaEndPicture(va_display, va_context);
if (!vaapi_check_status(status, "vaEndPicture()"))
return FALSE;
return TRUE;
}
gboolean
gst_vaapi_picture_output(GstVaapiPicture *picture)
{
GstVaapiSurfaceProxy *proxy;
GstVideoCodecFrame *out_frame;
g_return_val_if_fail(GST_VAAPI_IS_PICTURE(picture), FALSE);
if (!picture->proxy)
return FALSE;
out_frame = gst_video_codec_frame_ref(picture->frame);
proxy = gst_vaapi_surface_proxy_ref(picture->proxy);
gst_video_codec_frame_set_user_data(out_frame,
proxy, (GDestroyNotify)gst_vaapi_mini_object_unref);
out_frame->pts = picture->pts;
if (GST_VAAPI_PICTURE_IS_SKIPPED(picture))
GST_VIDEO_CODEC_FRAME_FLAG_SET(out_frame,
GST_VIDEO_CODEC_FRAME_FLAG_DECODE_ONLY);
#if !GST_CHECK_VERSION(1,0,0)
/* XXX: replaced with GST_VIDEO_BUFFER_FLAG_TFF */
if (GST_VAAPI_PICTURE_IS_TFF(picture))
GST_VIDEO_CODEC_FRAME_FLAG_SET(out_frame,
GST_VIDEO_CODEC_FRAME_FLAG_TFF);
#endif
gst_vaapi_decoder_push_frame(GET_DECODER(picture), out_frame);
GST_VAAPI_PICTURE_FLAG_SET(picture, GST_VAAPI_PICTURE_FLAG_OUTPUT);
return TRUE;
}
/* ------------------------------------------------------------------------- */
/* --- Slices --- */
/* ------------------------------------------------------------------------- */
GST_VAAPI_CODEC_DEFINE_TYPE(GstVaapiSlice, gst_vaapi_slice);
void
gst_vaapi_slice_destroy(GstVaapiSlice *slice)
{
VADisplay const va_display = GET_VA_DISPLAY(slice);
vaapi_destroy_buffer(va_display, &slice->data_id);
vaapi_destroy_buffer(va_display, &slice->param_id);
slice->param = NULL;
}
gboolean
gst_vaapi_slice_create(
GstVaapiSlice *slice,
const GstVaapiCodecObjectConstructorArgs *args
)
{
VASliceParameterBufferBase *slice_param;
gboolean success;
slice->data_id = VA_INVALID_ID;
success = vaapi_create_buffer(
GET_VA_DISPLAY(slice),
GET_VA_CONTEXT(slice),
VASliceDataBufferType,
args->data_size,
args->data,
&slice->data_id,
NULL
);
if (!success)
return FALSE;
slice->param_id = VA_INVALID_ID;
success = vaapi_create_buffer(
GET_VA_DISPLAY(slice),
GET_VA_CONTEXT(slice),
VASliceParameterBufferType,
args->param_size,
args->param,
&slice->param_id,
&slice->param
);
if (!success)
return FALSE;
slice_param = slice->param;
slice_param->slice_data_size = args->data_size;
slice_param->slice_data_offset = 0;
slice_param->slice_data_flag = VA_SLICE_DATA_FLAG_ALL;
return TRUE;
}
GstVaapiSlice *
gst_vaapi_slice_new(
GstVaapiDecoder *decoder,
gconstpointer param,
guint param_size,
const guchar *data,
guint data_size
)
{
GstVaapiCodecObject *object;
object = gst_vaapi_codec_object_new(
&GstVaapiSliceClass,
GST_VAAPI_CODEC_BASE(decoder),
param, param_size,
data, data_size,
0
);
return GST_VAAPI_SLICE_CAST(object);
}
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