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/*****************************************************************************
* va.c: hardware acceleration plugins for avcodec
*****************************************************************************
* Copyright (C) 2009 Laurent Aimar
* Copyright (C) 2012-2013 Rémi Denis-Courmont
*
* This program 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 program 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 program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <vlc_common.h>
#include <vlc_modules.h>
#include <vlc_fourcc.h>
#include <libavutil/pixfmt.h>
#include <libavcodec/avcodec.h>
#include "va.h"
vlc_fourcc_t vlc_va_GetChroma(enum PixelFormat hwfmt, enum PixelFormat swfmt)
{
/* NOTE: At the time of writing this comment, the return value was only
* used to probe support as decoder output. So incorrect values were not
* fatal, especially not if a software format. */
switch (hwfmt)
{
case AV_PIX_FMT_VAAPI:
switch (swfmt)
{
case AV_PIX_FMT_YUVJ420P:
case AV_PIX_FMT_YUV420P:
return VLC_CODEC_VAAPI_420;
case AV_PIX_FMT_YUV420P10LE:
return VLC_CODEC_VAAPI_420_10BPP;
default:
return 0;
}
case AV_PIX_FMT_DXVA2_VLD:
switch (swfmt)
{
case AV_PIX_FMT_YUV420P10LE:
return VLC_CODEC_D3D9_OPAQUE_10B;
default:
return VLC_CODEC_D3D9_OPAQUE;
}
break;
#if LIBAV_UTIL_VERSION_CHECK(54, 13, 1, 24, 100)
case AV_PIX_FMT_D3D11VA_VLD:
switch (swfmt)
{
case AV_PIX_FMT_YUV420P10LE:
return VLC_CODEC_D3D11_OPAQUE_10B;
default:
return VLC_CODEC_D3D11_OPAQUE;
}
break;
#endif
#if (LIBAVUTIL_VERSION_INT >= AV_VERSION_INT(52, 4, 0))
case AV_PIX_FMT_VDPAU:
switch (swfmt)
{
case AV_PIX_FMT_YUVJ444P:
case AV_PIX_FMT_YUV444P:
return VLC_CODEC_VDPAU_VIDEO_444;
case AV_PIX_FMT_YUVJ422P:
case AV_PIX_FMT_YUV422P:
return VLC_CODEC_VDPAU_VIDEO_422;
case AV_PIX_FMT_YUVJ420P:
case AV_PIX_FMT_YUV420P:
return VLC_CODEC_VDPAU_VIDEO_420;
default:
return 0;
}
break;
#endif
default:
return 0;
}
}
static int vlc_va_Start(void *func, va_list ap)
{
vlc_va_t *va = va_arg(ap, vlc_va_t *);
AVCodecContext *ctx = va_arg(ap, AVCodecContext *);
const AVPixFmtDescriptor *src_desc = va_arg(ap, const AVPixFmtDescriptor *);
enum PixelFormat pix_fmt = va_arg(ap, enum PixelFormat);
const es_format_t *fmt = va_arg(ap, const es_format_t *);
picture_sys_t *p_sys = va_arg(ap, picture_sys_t *);
int (*open)(vlc_va_t *, AVCodecContext *, const AVPixFmtDescriptor *, enum PixelFormat,
const es_format_t *, picture_sys_t *) = func;
return open(va, ctx, src_desc, pix_fmt, fmt, p_sys);
}
static void vlc_va_Stop(void *func, va_list ap)
{
vlc_va_t *va = va_arg(ap, vlc_va_t *);
void **hwctx = va_arg(ap, void **);
void (*close)(vlc_va_t *, void *) = func;
close(va, hwctx);
}
vlc_va_t *vlc_va_New(vlc_object_t *obj,
AVCodecContext *avctx, const AVPixFmtDescriptor *src_desc,
enum PixelFormat pix_fmt, const es_format_t *fmt,
picture_sys_t *p_sys)
{
vlc_va_t *va = vlc_object_create(obj, sizeof (*va));
if (unlikely(va == NULL))
return NULL;
char *modlist = var_InheritString(obj, "avcodec-hw");
va->module = vlc_module_load(va, "hw decoder", modlist, true,
vlc_va_Start, va, avctx, src_desc, pix_fmt, fmt, p_sys);
free(modlist);
if (va->module == NULL)
{
vlc_object_release(va);
va = NULL;
}
return va;
}
void vlc_va_Delete(vlc_va_t *va, void **hwctx)
{
vlc_module_unload(va, va->module, vlc_va_Stop, va, hwctx);
vlc_object_release(va);
}
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