Adds a sunxi-cedrus-drv-video libVA backend
This VA backend uses v4l2's Frame API proposal to interface with the "sunxi-cedrus" video driver on Allwinner SoC. Only a few parts of the code are really dependent on sunxi-cedrus and this VA backend could be reused for other v4l drivers using the Frame API.
This commit is contained in:
Florent Revest
+226
@@ -0,0 +1,226 @@
|
||||
/*
|
||||
* Copyright (c) 2016 Florent Revest, <florent.revest@free-electrons.com>
|
||||
* 2007 Intel Corporation. All Rights Reserved.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a
|
||||
* copy of this software and associated documentation files (the
|
||||
* "Software"), to deal in the Software without restriction, including
|
||||
* without limitation the rights to use, copy, modify, merge, publish,
|
||||
* distribute, sub license, and/or sell copies of the Software, and to
|
||||
* permit persons to whom the Software is furnished to do so, subject to
|
||||
* the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice (including the
|
||||
* next paragraph) shall be included in all copies or substantial portions
|
||||
* of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
||||
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
|
||||
* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
|
||||
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
||||
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
||||
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include "sunxi_cedrus_drv_video.h"
|
||||
#include "va_config.h"
|
||||
|
||||
#include <assert.h>
|
||||
#include <string.h>
|
||||
|
||||
#include <sys/ioctl.h>
|
||||
|
||||
#include <linux/videodev2.h>
|
||||
|
||||
/*
|
||||
* This file provides generalities to VA's user regarding the file formats
|
||||
* supported by the v4l driver. It uses VIDIOC_ENUM_FMT to make the
|
||||
* correspondence between v4l and VA video formats.
|
||||
*/
|
||||
|
||||
VAStatus sunxi_cedrus_QueryConfigProfiles(VADriverContextP ctx,
|
||||
VAProfile *profile_list, int *num_profiles)
|
||||
{
|
||||
INIT_DRIVER_DATA
|
||||
int i = 0;
|
||||
struct v4l2_fmtdesc vid_fmtdesc;
|
||||
memset(&vid_fmtdesc, 0, sizeof(vid_fmtdesc));
|
||||
vid_fmtdesc.index = 0;
|
||||
vid_fmtdesc.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
|
||||
|
||||
while(ioctl(driver_data->mem2mem_fd, VIDIOC_ENUM_FMT, &vid_fmtdesc) == 0)
|
||||
{
|
||||
vid_fmtdesc.index++;
|
||||
}
|
||||
|
||||
assert(i <= SUNXI_CEDRUS_MAX_PROFILES);
|
||||
*num_profiles = i;
|
||||
|
||||
return VA_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
VAStatus sunxi_cedrus_QueryConfigEntrypoints(VADriverContextP ctx,
|
||||
VAProfile profile, VAEntrypoint *entrypoint_list,
|
||||
int *num_entrypoints)
|
||||
{
|
||||
switch (profile) {
|
||||
default:
|
||||
*num_entrypoints = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
assert(*num_entrypoints <= SUNXI_CEDRUS_MAX_ENTRYPOINTS);
|
||||
return VA_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
VAStatus sunxi_cedrus_GetConfigAttributes(VADriverContextP ctx,
|
||||
VAProfile profile, VAEntrypoint entrypoint,
|
||||
VAConfigAttrib *attrib_list, int num_attribs)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < num_attribs; i++)
|
||||
{
|
||||
switch (attrib_list[i].type)
|
||||
{
|
||||
case VAConfigAttribRTFormat:
|
||||
attrib_list[i].value = VA_RT_FORMAT_YUV420;
|
||||
break;
|
||||
|
||||
default:
|
||||
/* Do nothing */
|
||||
attrib_list[i].value = VA_ATTRIB_NOT_SUPPORTED;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return VA_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
VAStatus sunxi_cedrus_update_attribute(object_config_p obj_config,
|
||||
VAConfigAttrib *attrib)
|
||||
{
|
||||
int i;
|
||||
/* Check existing attributes */
|
||||
for(i = 0; obj_config->attrib_count < i; i++)
|
||||
{
|
||||
if (obj_config->attrib_list[i].type == attrib->type)
|
||||
{
|
||||
/* Update existing attribute */
|
||||
obj_config->attrib_list[i].value = attrib->value;
|
||||
return VA_STATUS_SUCCESS;
|
||||
}
|
||||
}
|
||||
if (obj_config->attrib_count < SUNXI_CEDRUS_MAX_CONFIG_ATTRIBUTES)
|
||||
{
|
||||
i = obj_config->attrib_count;
|
||||
obj_config->attrib_list[i].type = attrib->type;
|
||||
obj_config->attrib_list[i].value = attrib->value;
|
||||
obj_config->attrib_count++;
|
||||
return VA_STATUS_SUCCESS;
|
||||
}
|
||||
return VA_STATUS_ERROR_MAX_NUM_EXCEEDED;
|
||||
}
|
||||
|
||||
VAStatus sunxi_cedrus_CreateConfig(VADriverContextP ctx, VAProfile profile,
|
||||
VAEntrypoint entrypoint, VAConfigAttrib *attrib_list,
|
||||
int num_attribs, VAConfigID *config_id)
|
||||
{
|
||||
INIT_DRIVER_DATA
|
||||
VAStatus vaStatus;
|
||||
int configID;
|
||||
object_config_p obj_config;
|
||||
int i;
|
||||
|
||||
/* Validate profile & entrypoint */
|
||||
switch (profile) {
|
||||
default:
|
||||
vaStatus = VA_STATUS_ERROR_UNSUPPORTED_PROFILE;
|
||||
break;
|
||||
}
|
||||
|
||||
if (VA_STATUS_SUCCESS != vaStatus)
|
||||
return vaStatus;
|
||||
|
||||
configID = object_heap_allocate(&driver_data->config_heap);
|
||||
obj_config = CONFIG(configID);
|
||||
if (NULL == obj_config)
|
||||
{
|
||||
vaStatus = VA_STATUS_ERROR_ALLOCATION_FAILED;
|
||||
return vaStatus;
|
||||
}
|
||||
|
||||
obj_config->profile = profile;
|
||||
obj_config->entrypoint = entrypoint;
|
||||
obj_config->attrib_list[0].type = VAConfigAttribRTFormat;
|
||||
obj_config->attrib_list[0].value = VA_RT_FORMAT_YUV420;
|
||||
obj_config->attrib_count = 1;
|
||||
|
||||
for(i = 0; i < num_attribs; i++)
|
||||
{
|
||||
vaStatus = sunxi_cedrus_update_attribute(obj_config, &(attrib_list[i]));
|
||||
if (VA_STATUS_SUCCESS != vaStatus)
|
||||
break;
|
||||
}
|
||||
|
||||
/* Error recovery */
|
||||
if (VA_STATUS_SUCCESS != vaStatus)
|
||||
object_heap_free(&driver_data->config_heap, (object_base_p) obj_config);
|
||||
else
|
||||
*config_id = configID;
|
||||
|
||||
return vaStatus;
|
||||
}
|
||||
|
||||
VAStatus sunxi_cedrus_DestroyConfig(VADriverContextP ctx, VAConfigID config_id)
|
||||
{
|
||||
INIT_DRIVER_DATA
|
||||
VAStatus vaStatus;
|
||||
object_config_p obj_config;
|
||||
|
||||
obj_config = CONFIG(config_id);
|
||||
if (NULL == obj_config)
|
||||
{
|
||||
vaStatus = VA_STATUS_ERROR_INVALID_CONFIG;
|
||||
return vaStatus;
|
||||
}
|
||||
|
||||
object_heap_free(&driver_data->config_heap, (object_base_p) obj_config);
|
||||
return VA_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
VAStatus sunxi_cedrus_QueryConfigAttributes(VADriverContextP ctx,
|
||||
VAConfigID config_id, VAProfile *profile,
|
||||
VAEntrypoint *entrypoint, VAConfigAttrib *attrib_list,
|
||||
int *num_attribs)
|
||||
{
|
||||
INIT_DRIVER_DATA
|
||||
VAStatus vaStatus = VA_STATUS_SUCCESS;
|
||||
object_config_p obj_config;
|
||||
int i;
|
||||
|
||||
obj_config = CONFIG(config_id);
|
||||
assert(obj_config);
|
||||
|
||||
*profile = obj_config->profile;
|
||||
*entrypoint = obj_config->entrypoint;
|
||||
*num_attribs = obj_config->attrib_count;
|
||||
for(i = 0; i < obj_config->attrib_count; i++)
|
||||
attrib_list[i] = obj_config->attrib_list[i];
|
||||
|
||||
return vaStatus;
|
||||
}
|
||||
|
||||
/* sunxi-cedrus doesn't support display attributes */
|
||||
VAStatus sunxi_cedrus_QueryDisplayAttributes (VADriverContextP ctx,
|
||||
VADisplayAttribute *attr_list, int *num_attributes)
|
||||
{ return VA_STATUS_ERROR_UNKNOWN; }
|
||||
|
||||
VAStatus sunxi_cedrus_GetDisplayAttributes (VADriverContextP ctx,
|
||||
VADisplayAttribute *attr_list, int num_attributes)
|
||||
{ return VA_STATUS_ERROR_UNKNOWN; }
|
||||
|
||||
VAStatus sunxi_cedrus_SetDisplayAttributes (VADriverContextP ctx,
|
||||
VADisplayAttribute *attr_list, int num_attributes)
|
||||
{ return VA_STATUS_ERROR_UNKNOWN; }
|
||||
Reference in New Issue
Block a user