mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-12 03:16:33 +00:00
143 lines
3.7 KiB
C
143 lines
3.7 KiB
C
/* GStreamer Intel MSDK plugin
|
|
* Copyright (c) 2016, Oblong Industries, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the copyright holder nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
|
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
|
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
|
|
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
|
|
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
|
|
/* TODO:
|
|
* - discover dri_path instead of having it hardcoded
|
|
*/
|
|
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
|
|
#include <va/va_drm.h>
|
|
#include "msdk.h"
|
|
|
|
GST_DEBUG_CATEGORY_EXTERN (gst_msdkenc_debug);
|
|
#define GST_CAT_DEFAULT gst_msdkenc_debug
|
|
|
|
struct _MsdkContext
|
|
{
|
|
mfxSession session;
|
|
gint fd;
|
|
VADisplay dpy;
|
|
};
|
|
|
|
static gboolean
|
|
msdk_use_vaapi_on_context (MsdkContext * context)
|
|
{
|
|
gint fd;
|
|
gint maj_ver, min_ver;
|
|
VADisplay va_dpy = NULL;
|
|
VAStatus va_status;
|
|
mfxStatus status;
|
|
/* maybe /dev/dri/renderD128 */
|
|
static const gchar *dri_path = "/dev/dri/card0";
|
|
|
|
fd = open (dri_path, O_RDWR);
|
|
if (fd < 0) {
|
|
GST_ERROR ("Couldn't open %s", dri_path);
|
|
return FALSE;
|
|
}
|
|
|
|
va_dpy = vaGetDisplayDRM (fd);
|
|
if (!va_dpy) {
|
|
GST_ERROR ("Couldn't get a VA DRM display");
|
|
goto failed;
|
|
}
|
|
|
|
va_status = vaInitialize (va_dpy, &maj_ver, &min_ver);
|
|
if (va_status != VA_STATUS_SUCCESS) {
|
|
GST_ERROR ("Couldn't initialize VA DRM display");
|
|
goto failed;
|
|
}
|
|
|
|
status = MFXVideoCORE_SetHandle (context->session, MFX_HANDLE_VA_DISPLAY,
|
|
(mfxHDL) va_dpy);
|
|
if (status != MFX_ERR_NONE) {
|
|
GST_ERROR ("Setting VAAPI handle failed (%s)",
|
|
msdk_status_to_string (status));
|
|
goto failed;
|
|
}
|
|
|
|
context->fd = fd;
|
|
context->dpy = va_dpy;
|
|
|
|
return TRUE;
|
|
|
|
failed:
|
|
if (va_dpy)
|
|
vaTerminate (va_dpy);
|
|
close (fd);
|
|
return FALSE;
|
|
}
|
|
|
|
MsdkContext *
|
|
msdk_open_context (gboolean hardware)
|
|
{
|
|
MsdkContext *context = g_slice_new0 (MsdkContext);
|
|
context->fd = -1;
|
|
|
|
context->session = msdk_open_session (hardware);
|
|
if (!context->session)
|
|
goto failed;
|
|
|
|
if (hardware) {
|
|
if (!msdk_use_vaapi_on_context (context))
|
|
goto failed;
|
|
}
|
|
|
|
return context;
|
|
|
|
failed:
|
|
msdk_close_session (context->session);
|
|
g_slice_free (MsdkContext, context);
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
msdk_close_context (MsdkContext * context)
|
|
{
|
|
if (!context)
|
|
return;
|
|
|
|
msdk_close_session (context->session);
|
|
if (context->dpy)
|
|
vaTerminate (context->dpy);
|
|
if (context->fd >= 0)
|
|
close (context->fd);
|
|
g_slice_free (MsdkContext, context);
|
|
}
|
|
|
|
mfxSession
|
|
msdk_context_get_session (MsdkContext * context)
|
|
{
|
|
return context->session;
|
|
}
|