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ffmpeg/libavutil/hwcontext_qsv.c
Mark Thompson 468f003843 hwcontext_qsv: Try to select a matching VAAPI device by default 
Tries to find a device backed by the i915 kernel driver and loads the iHD
VAAPI driver to use with it.  This reduces confusion on machines with
multiple DRM devices and removes the surprising requirement to set the
LIBVA_DRIVER_NAME environment variable to use libmfx at all.
2019-06-02 23:03:27 +01:00

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/*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdint.h>
#include <string.h>
#include <mfx/mfxvideo.h>
#include "config.h"
#if HAVE_PTHREADS
#include <pthread.h>
#endif
#if CONFIG_VAAPI
#include "hwcontext_vaapi.h"
#endif
#if CONFIG_DXVA2
#include "hwcontext_dxva2.h"
#endif
#include "buffer.h"
#include "common.h"
#include "hwcontext.h"
#include "hwcontext_internal.h"
#include "hwcontext_qsv.h"
#include "mem.h"
#include "pixfmt.h"
#include "pixdesc.h"
#include "time.h"
typedef struct QSVDevicePriv {
AVBufferRef *child_device_ctx;
} QSVDevicePriv;
typedef struct QSVDeviceContext {
mfxHDL handle;
mfxHandleType handle_type;
mfxVersion ver;
mfxIMPL impl;
enum AVHWDeviceType child_device_type;
enum AVPixelFormat child_pix_fmt;
} QSVDeviceContext;
typedef struct QSVFramesContext {
mfxSession session_download;
int session_download_init;
mfxSession session_upload;
int session_upload_init;
#if HAVE_PTHREADS
pthread_mutex_t session_lock;
pthread_cond_t session_cond;
#endif
AVBufferRef *child_frames_ref;
mfxFrameSurface1 *surfaces_internal;
int nb_surfaces_used;
// used in the frame allocator for non-opaque surfaces
mfxMemId *mem_ids;
// used in the opaque alloc request for opaque surfaces
mfxFrameSurface1 **surface_ptrs;
mfxExtOpaqueSurfaceAlloc opaque_alloc;
mfxExtBuffer *ext_buffers[1];
} QSVFramesContext;
static const struct {
mfxHandleType handle_type;
enum AVHWDeviceType device_type;
enum AVPixelFormat pix_fmt;
} supported_handle_types[] = {
#if CONFIG_VAAPI
{ MFX_HANDLE_VA_DISPLAY, AV_HWDEVICE_TYPE_VAAPI, AV_PIX_FMT_VAAPI },
#endif
#if CONFIG_DXVA2
{ MFX_HANDLE_D3D9_DEVICE_MANAGER, AV_HWDEVICE_TYPE_DXVA2, AV_PIX_FMT_DXVA2_VLD },
#endif
{ 0 },
};
static const struct {
enum AVPixelFormat pix_fmt;
uint32_t fourcc;
} supported_pixel_formats[] = {
{ AV_PIX_FMT_NV12, MFX_FOURCC_NV12 },
{ AV_PIX_FMT_BGRA, MFX_FOURCC_RGB4 },
{ AV_PIX_FMT_P010, MFX_FOURCC_P010 },
{ AV_PIX_FMT_PAL8, MFX_FOURCC_P8 },
};
static uint32_t qsv_fourcc_from_pix_fmt(enum AVPixelFormat pix_fmt)
{
int i;
for (i = 0; i < FF_ARRAY_ELEMS(supported_pixel_formats); i++) {
if (supported_pixel_formats[i].pix_fmt == pix_fmt)
return supported_pixel_formats[i].fourcc;
}
return 0;
}
static int qsv_device_init(AVHWDeviceContext *ctx)
{
AVQSVDeviceContext *hwctx = ctx->hwctx;
QSVDeviceContext *s = ctx->internal->priv;
mfxStatus err;
int i;
for (i = 0; supported_handle_types[i].handle_type; i++) {
err = MFXVideoCORE_GetHandle(hwctx->session, supported_handle_types[i].handle_type,
&s->handle);
if (err == MFX_ERR_NONE) {
s->handle_type = supported_handle_types[i].handle_type;
s->child_device_type = supported_handle_types[i].device_type;
s->child_pix_fmt = supported_handle_types[i].pix_fmt;
break;
}
}
if (!s->handle) {
av_log(ctx, AV_LOG_VERBOSE, "No supported hw handle could be retrieved "
"from the session\n");
}
err = MFXQueryIMPL(hwctx->session, &s->impl);
if (err == MFX_ERR_NONE)
err = MFXQueryVersion(hwctx->session, &s->ver);
if (err != MFX_ERR_NONE) {
av_log(ctx, AV_LOG_ERROR, "Error querying the session attributes\n");
return AVERROR_UNKNOWN;
}
return 0;
}
static void qsv_frames_uninit(AVHWFramesContext *ctx)
{
QSVFramesContext *s = ctx->internal->priv;
if (s->session_download) {
MFXVideoVPP_Close(s->session_download);
MFXClose(s->session_download);
}
s->session_download = NULL;
s->session_download_init = 0;
if (s->session_upload) {
MFXVideoVPP_Close(s->session_upload);
MFXClose(s->session_upload);
}
s->session_upload = NULL;
s->session_upload_init = 0;
#if HAVE_PTHREADS
pthread_mutex_destroy(&s->session_lock);
pthread_cond_destroy(&s->session_cond);
#endif
av_freep(&s->mem_ids);
av_freep(&s->surface_ptrs);
av_freep(&s->surfaces_internal);
av_buffer_unref(&s->child_frames_ref);
}
static void qsv_pool_release_dummy(void *opaque, uint8_t *data)
{
}
static AVBufferRef *qsv_pool_alloc(void *opaque, int size)
{
AVHWFramesContext *ctx = (AVHWFramesContext*)opaque;
QSVFramesContext *s = ctx->internal->priv;
AVQSVFramesContext *hwctx = ctx->hwctx;
if (s->nb_surfaces_used < hwctx->nb_surfaces) {
s->nb_surfaces_used++;
return av_buffer_create((uint8_t*)(s->surfaces_internal + s->nb_surfaces_used - 1),
sizeof(*hwctx->surfaces), qsv_pool_release_dummy, NULL, 0);
}
return NULL;
}
static int qsv_init_child_ctx(AVHWFramesContext *ctx)
{
AVQSVFramesContext *hwctx = ctx->hwctx;
QSVFramesContext *s = ctx->internal->priv;
QSVDeviceContext *device_priv = ctx->device_ctx->internal->priv;
AVBufferRef *child_device_ref = NULL;
AVBufferRef *child_frames_ref = NULL;
AVHWDeviceContext *child_device_ctx;
AVHWFramesContext *child_frames_ctx;
int i, ret = 0;
if (!device_priv->handle) {
av_log(ctx, AV_LOG_ERROR,
"Cannot create a non-opaque internal surface pool without "
"a hardware handle\n");
return AVERROR(EINVAL);
}
child_device_ref = av_hwdevice_ctx_alloc(device_priv->child_device_type);
if (!child_device_ref)
return AVERROR(ENOMEM);
child_device_ctx = (AVHWDeviceContext*)child_device_ref->data;
#if CONFIG_VAAPI
if (child_device_ctx->type == AV_HWDEVICE_TYPE_VAAPI) {
AVVAAPIDeviceContext *child_device_hwctx = child_device_ctx->hwctx;
child_device_hwctx->display = (VADisplay)device_priv->handle;
}
#endif
#if CONFIG_DXVA2
if (child_device_ctx->type == AV_HWDEVICE_TYPE_DXVA2) {
AVDXVA2DeviceContext *child_device_hwctx = child_device_ctx->hwctx;
child_device_hwctx->devmgr = (IDirect3DDeviceManager9*)device_priv->handle;
}
#endif
ret = av_hwdevice_ctx_init(child_device_ref);
if (ret < 0) {
av_log(ctx, AV_LOG_ERROR, "Error initializing a child device context\n");
goto fail;
}
child_frames_ref = av_hwframe_ctx_alloc(child_device_ref);
if (!child_frames_ref) {
ret = AVERROR(ENOMEM);
goto fail;
}
child_frames_ctx = (AVHWFramesContext*)child_frames_ref->data;
child_frames_ctx->format = device_priv->child_pix_fmt;
child_frames_ctx->sw_format = ctx->sw_format;
child_frames_ctx->initial_pool_size = ctx->initial_pool_size;
child_frames_ctx->width = FFALIGN(ctx->width, 16);
child_frames_ctx->height = FFALIGN(ctx->height, 16);
#if CONFIG_DXVA2
if (child_device_ctx->type == AV_HWDEVICE_TYPE_DXVA2) {
AVDXVA2FramesContext *child_frames_hwctx = child_frames_ctx->hwctx;
if (hwctx->frame_type & MFX_MEMTYPE_VIDEO_MEMORY_PROCESSOR_TARGET)
child_frames_hwctx->surface_type = DXVA2_VideoProcessorRenderTarget;
else
child_frames_hwctx->surface_type = DXVA2_VideoDecoderRenderTarget;
}
#endif
ret = av_hwframe_ctx_init(child_frames_ref);
if (ret < 0) {
av_log(ctx, AV_LOG_ERROR, "Error initializing a child frames context\n");
goto fail;
}
#if CONFIG_VAAPI
if (child_device_ctx->type == AV_HWDEVICE_TYPE_VAAPI) {
AVVAAPIFramesContext *child_frames_hwctx = child_frames_ctx->hwctx;
for (i = 0; i < ctx->initial_pool_size; i++)
s->surfaces_internal[i].Data.MemId = child_frames_hwctx->surface_ids + i;
hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET;
}
#endif
#if CONFIG_DXVA2
if (child_device_ctx->type == AV_HWDEVICE_TYPE_DXVA2) {
AVDXVA2FramesContext *child_frames_hwctx = child_frames_ctx->hwctx;
for (i = 0; i < ctx->initial_pool_size; i++)
s->surfaces_internal[i].Data.MemId = (mfxMemId)child_frames_hwctx->surfaces[i];
if (child_frames_hwctx->surface_type == DXVA2_VideoProcessorRenderTarget)
hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_PROCESSOR_TARGET;
else
hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET;
}
#endif
s->child_frames_ref = child_frames_ref;
child_frames_ref = NULL;
fail:
av_buffer_unref(&child_device_ref);
av_buffer_unref(&child_frames_ref);
return ret;
}
static int qsv_init_surface(AVHWFramesContext *ctx, mfxFrameSurface1 *surf)
{
const AVPixFmtDescriptor *desc;
uint32_t fourcc;
desc = av_pix_fmt_desc_get(ctx->sw_format);
if (!desc)
return AVERROR(EINVAL);
fourcc = qsv_fourcc_from_pix_fmt(ctx->sw_format);
if (!fourcc)
return AVERROR(EINVAL);
surf->Info.BitDepthLuma = desc->comp[0].depth;
surf->Info.BitDepthChroma = desc->comp[0].depth;
surf->Info.Shift = desc->comp[0].depth > 8;
if (desc->log2_chroma_w && desc->log2_chroma_h)
surf->Info.ChromaFormat = MFX_CHROMAFORMAT_YUV420;
else if (desc->log2_chroma_w)
surf->Info.ChromaFormat = MFX_CHROMAFORMAT_YUV422;
else
surf->Info.ChromaFormat = MFX_CHROMAFORMAT_YUV444;
surf->Info.FourCC = fourcc;
surf->Info.Width = FFALIGN(ctx->width, 16);
surf->Info.CropW = ctx->width;
surf->Info.Height = FFALIGN(ctx->height, 16);
surf->Info.CropH = ctx->height;
surf->Info.FrameRateExtN = 25;
surf->Info.FrameRateExtD = 1;
surf->Info.PicStruct = MFX_PICSTRUCT_PROGRESSIVE;
return 0;
}
static int qsv_init_pool(AVHWFramesContext *ctx, uint32_t fourcc)
{
QSVFramesContext *s = ctx->internal->priv;
AVQSVFramesContext *frames_hwctx = ctx->hwctx;
int i, ret = 0;
if (ctx->initial_pool_size <= 0) {
av_log(ctx, AV_LOG_ERROR, "QSV requires a fixed frame pool size\n");
return AVERROR(EINVAL);
}
s->surfaces_internal = av_mallocz_array(ctx->initial_pool_size,
sizeof(*s->surfaces_internal));
if (!s->surfaces_internal)
return AVERROR(ENOMEM);
for (i = 0; i < ctx->initial_pool_size; i++) {
ret = qsv_init_surface(ctx, &s->surfaces_internal[i]);
if (ret < 0)
return ret;
}
if (!(frames_hwctx->frame_type & MFX_MEMTYPE_OPAQUE_FRAME)) {
ret = qsv_init_child_ctx(ctx);
if (ret < 0)
return ret;
}
ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(mfxFrameSurface1),
ctx, qsv_pool_alloc, NULL);
if (!ctx->internal->pool_internal)
return AVERROR(ENOMEM);
frames_hwctx->surfaces = s->surfaces_internal;
frames_hwctx->nb_surfaces = ctx->initial_pool_size;
return 0;
}
static mfxStatus frame_alloc(mfxHDL pthis, mfxFrameAllocRequest *req,
mfxFrameAllocResponse *resp)
{
AVHWFramesContext *ctx = pthis;
QSVFramesContext *s = ctx->internal->priv;
AVQSVFramesContext *hwctx = ctx->hwctx;
mfxFrameInfo *i = &req->Info;
mfxFrameInfo *i1 = &hwctx->surfaces[0].Info;
if (!(req->Type & MFX_MEMTYPE_VIDEO_MEMORY_PROCESSOR_TARGET) ||
!(req->Type & (MFX_MEMTYPE_FROM_VPPIN | MFX_MEMTYPE_FROM_VPPOUT)) ||
!(req->Type & MFX_MEMTYPE_EXTERNAL_FRAME))
return MFX_ERR_UNSUPPORTED;
if (i->Width > i1->Width || i->Height > i1->Height ||
i->FourCC != i1->FourCC || i->ChromaFormat != i1->ChromaFormat) {
av_log(ctx, AV_LOG_ERROR, "Mismatching surface properties in an "
"allocation request: %dx%d %d %d vs %dx%d %d %d\n",
i->Width, i->Height, i->FourCC, i->ChromaFormat,
i1->Width, i1->Height, i1->FourCC, i1->ChromaFormat);
return MFX_ERR_UNSUPPORTED;
}
resp->mids = s->mem_ids;
resp->NumFrameActual = hwctx->nb_surfaces;
return MFX_ERR_NONE;
}
static mfxStatus frame_free(mfxHDL pthis, mfxFrameAllocResponse *resp)
{
return MFX_ERR_NONE;
}
static mfxStatus frame_lock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
{
return MFX_ERR_UNSUPPORTED;
}
static mfxStatus frame_unlock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
{
return MFX_ERR_UNSUPPORTED;
}
static mfxStatus frame_get_hdl(mfxHDL pthis, mfxMemId mid, mfxHDL *hdl)
{
*hdl = mid;
return MFX_ERR_NONE;
}
static int qsv_init_internal_session(AVHWFramesContext *ctx,
mfxSession *session, int upload)
{
QSVFramesContext *s = ctx->internal->priv;
AVQSVFramesContext *frames_hwctx = ctx->hwctx;
QSVDeviceContext *device_priv = ctx->device_ctx->internal->priv;
int opaque = !!(frames_hwctx->frame_type & MFX_MEMTYPE_OPAQUE_FRAME);
mfxFrameAllocator frame_allocator = {
.pthis = ctx,
.Alloc = frame_alloc,
.Lock = frame_lock,
.Unlock = frame_unlock,
.GetHDL = frame_get_hdl,
.Free = frame_free,
};
mfxVideoParam par;
mfxStatus err;
err = MFXInit(device_priv->impl, &device_priv->ver, session);
if (err != MFX_ERR_NONE) {
av_log(ctx, AV_LOG_ERROR, "Error initializing an internal session\n");
return AVERROR_UNKNOWN;
}
if (device_priv->handle) {
err = MFXVideoCORE_SetHandle(*session, device_priv->handle_type,
device_priv->handle);
if (err != MFX_ERR_NONE)
return AVERROR_UNKNOWN;
}
if (!opaque) {
err = MFXVideoCORE_SetFrameAllocator(*session, &frame_allocator);
if (err != MFX_ERR_NONE)
return AVERROR_UNKNOWN;
}
memset(&par, 0, sizeof(par));
if (opaque) {
par.ExtParam = s->ext_buffers;
par.NumExtParam = FF_ARRAY_ELEMS(s->ext_buffers);
par.IOPattern = upload ? MFX_IOPATTERN_OUT_OPAQUE_MEMORY :
MFX_IOPATTERN_IN_OPAQUE_MEMORY;
} else {
par.IOPattern = upload ? MFX_IOPATTERN_OUT_VIDEO_MEMORY :
MFX_IOPATTERN_IN_VIDEO_MEMORY;
}
par.IOPattern |= upload ? MFX_IOPATTERN_IN_SYSTEM_MEMORY :
MFX_IOPATTERN_OUT_SYSTEM_MEMORY;
par.AsyncDepth = 1;
par.vpp.In = frames_hwctx->surfaces[0].Info;
/* Apparently VPP requires the frame rate to be set to some value, otherwise
* init will fail (probably for the framerate conversion filter). Since we
* are only doing data upload/download here, we just invent an arbitrary
* value */
par.vpp.In.FrameRateExtN = 25;
par.vpp.In.FrameRateExtD = 1;
par.vpp.Out = par.vpp.In;
err = MFXVideoVPP_Init(*session, &par);
if (err != MFX_ERR_NONE) {
av_log(ctx, AV_LOG_VERBOSE, "Error opening the internal VPP session."
"Surface upload/download will not be possible\n");
MFXClose(*session);
*session = NULL;
}
return 0;
}
static int qsv_frames_init(AVHWFramesContext *ctx)
{
QSVFramesContext *s = ctx->internal->priv;
AVQSVFramesContext *frames_hwctx = ctx->hwctx;
int opaque = !!(frames_hwctx->frame_type & MFX_MEMTYPE_OPAQUE_FRAME);
uint32_t fourcc;
int i, ret;
fourcc = qsv_fourcc_from_pix_fmt(ctx->sw_format);
if (!fourcc) {
av_log(ctx, AV_LOG_ERROR, "Unsupported pixel format\n");
return AVERROR(ENOSYS);
}
if (!ctx->pool) {
ret = qsv_init_pool(ctx, fourcc);
if (ret < 0) {
av_log(ctx, AV_LOG_ERROR, "Error creating an internal frame pool\n");
return ret;
}
}
if (opaque) {
s->surface_ptrs = av_mallocz_array(frames_hwctx->nb_surfaces,
sizeof(*s->surface_ptrs));
if (!s->surface_ptrs)
return AVERROR(ENOMEM);
for (i = 0; i < frames_hwctx->nb_surfaces; i++)
s->surface_ptrs[i] = frames_hwctx->surfaces + i;
s->opaque_alloc.In.Surfaces = s->surface_ptrs;
s->opaque_alloc.In.NumSurface = frames_hwctx->nb_surfaces;
s->opaque_alloc.In.Type = frames_hwctx->frame_type;
s->opaque_alloc.Out = s->opaque_alloc.In;
s->opaque_alloc.Header.BufferId = MFX_EXTBUFF_OPAQUE_SURFACE_ALLOCATION;
s->opaque_alloc.Header.BufferSz = sizeof(s->opaque_alloc);
s->ext_buffers[0] = (mfxExtBuffer*)&s->opaque_alloc;
} else {
s->mem_ids = av_mallocz_array(frames_hwctx->nb_surfaces, sizeof(*s->mem_ids));
if (!s->mem_ids)
return AVERROR(ENOMEM);
for (i = 0; i < frames_hwctx->nb_surfaces; i++)
s->mem_ids[i] = frames_hwctx->surfaces[i].Data.MemId;
}
s->session_download = NULL;
s->session_upload = NULL;
s->session_download_init = 0;
s->session_upload_init = 0;
#if HAVE_PTHREADS
pthread_mutex_init(&s->session_lock, NULL);
pthread_cond_init(&s->session_cond, NULL);
#endif
return 0;
}
static int qsv_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
{
frame->buf[0] = av_buffer_pool_get(ctx->pool);
if (!frame->buf[0])
return AVERROR(ENOMEM);
frame->data[3] = frame->buf[0]->data;
frame->format = AV_PIX_FMT_QSV;
frame->width = ctx->width;
frame->height = ctx->height;
return 0;
}
static int qsv_transfer_get_formats(AVHWFramesContext *ctx,
enum AVHWFrameTransferDirection dir,
enum AVPixelFormat **formats)
{
enum AVPixelFormat *fmts;
fmts = av_malloc_array(2, sizeof(*fmts));
if (!fmts)
return AVERROR(ENOMEM);
fmts[0] = ctx->sw_format;
fmts[1] = AV_PIX_FMT_NONE;
*formats = fmts;
return 0;
}
static int qsv_frames_derive_from(AVHWFramesContext *dst_ctx,
AVHWFramesContext *src_ctx, int flags)
{
AVQSVFramesContext *src_hwctx = src_ctx->hwctx;
int i;
switch (dst_ctx->device_ctx->type) {
#if CONFIG_VAAPI
case AV_HWDEVICE_TYPE_VAAPI:
{
AVVAAPIFramesContext *dst_hwctx = dst_ctx->hwctx;
dst_hwctx->surface_ids = av_mallocz_array(src_hwctx->nb_surfaces,
sizeof(*dst_hwctx->surface_ids));
if (!dst_hwctx->surface_ids)
return AVERROR(ENOMEM);
for (i = 0; i < src_hwctx->nb_surfaces; i++)
dst_hwctx->surface_ids[i] =
*(VASurfaceID*)src_hwctx->surfaces[i].Data.MemId;
dst_hwctx->nb_surfaces = src_hwctx->nb_surfaces;
}
break;
#endif
#if CONFIG_DXVA2
case AV_HWDEVICE_TYPE_DXVA2:
{
AVDXVA2FramesContext *dst_hwctx = dst_ctx->hwctx;
dst_hwctx->surfaces = av_mallocz_array(src_hwctx->nb_surfaces,
sizeof(*dst_hwctx->surfaces));
if (!dst_hwctx->surfaces)
return AVERROR(ENOMEM);
for (i = 0; i < src_hwctx->nb_surfaces; i++)
dst_hwctx->surfaces[i] =
(IDirect3DSurface9*)src_hwctx->surfaces[i].Data.MemId;
dst_hwctx->nb_surfaces = src_hwctx->nb_surfaces;
if (src_hwctx->frame_type == MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET)
dst_hwctx->surface_type = DXVA2_VideoDecoderRenderTarget;
else
dst_hwctx->surface_type = DXVA2_VideoProcessorRenderTarget;
}
break;
#endif
default:
return AVERROR(ENOSYS);
}
return 0;
}
static int qsv_map_from(AVHWFramesContext *ctx,
AVFrame *dst, const AVFrame *src, int flags)
{
QSVFramesContext *s = ctx->internal->priv;
mfxFrameSurface1 *surf = (mfxFrameSurface1*)src->data[3];
AVHWFramesContext *child_frames_ctx;
const AVPixFmtDescriptor *desc;
uint8_t *child_data;
AVFrame *dummy;
int ret = 0;
if (!s->child_frames_ref)
return AVERROR(ENOSYS);
child_frames_ctx = (AVHWFramesContext*)s->child_frames_ref->data;
switch (child_frames_ctx->device_ctx->type) {
#if CONFIG_VAAPI
case AV_HWDEVICE_TYPE_VAAPI:
child_data = (uint8_t*)(intptr_t)*(VASurfaceID*)surf->Data.MemId;
break;
#endif
#if CONFIG_DXVA2
case AV_HWDEVICE_TYPE_DXVA2:
child_data = surf->Data.MemId;
break;
#endif
default:
return AVERROR(ENOSYS);
}
if (dst->format == child_frames_ctx->format) {
ret = ff_hwframe_map_create(s->child_frames_ref,
dst, src, NULL, NULL);
if (ret < 0)
return ret;
dst->width = src->width;
dst->height = src->height;
dst->data[3] = child_data;
return 0;
}
desc = av_pix_fmt_desc_get(dst->format);
if (desc && desc->flags & AV_PIX_FMT_FLAG_HWACCEL) {
// This only supports mapping to software.
return AVERROR(ENOSYS);
}
dummy = av_frame_alloc();
if (!dummy)
return AVERROR(ENOMEM);
dummy->buf[0] = av_buffer_ref(src->buf[0]);
dummy->hw_frames_ctx = av_buffer_ref(s->child_frames_ref);
if (!dummy->buf[0] || !dummy->hw_frames_ctx)
goto fail;
dummy->format = child_frames_ctx->format;
dummy->width = src->width;
dummy->height = src->height;
dummy->data[3] = child_data;
ret = av_hwframe_map(dst, dummy, flags);
fail:
av_frame_free(&dummy);
return ret;
}
static int qsv_transfer_data_child(AVHWFramesContext *ctx, AVFrame *dst,
const AVFrame *src)
{
QSVFramesContext *s = ctx->internal->priv;
AVHWFramesContext *child_frames_ctx = (AVHWFramesContext*)s->child_frames_ref->data;
int download = !!src->hw_frames_ctx;
mfxFrameSurface1 *surf = (mfxFrameSurface1*)(download ? src->data[3] : dst->data[3]);
AVFrame *dummy;
int ret;
dummy = av_frame_alloc();
if (!dummy)
return AVERROR(ENOMEM);
dummy->format = child_frames_ctx->format;
dummy->width = src->width;
dummy->height = src->height;
dummy->buf[0] = download ? src->buf[0] : dst->buf[0];
dummy->data[3] = surf->Data.MemId;
dummy->hw_frames_ctx = s->child_frames_ref;
ret = download ? av_hwframe_transfer_data(dst, dummy, 0) :
av_hwframe_transfer_data(dummy, src, 0);
dummy->buf[0] = NULL;
dummy->data[3] = NULL;
dummy->hw_frames_ctx = NULL;
av_frame_free(&dummy);
return ret;
}
static int map_frame_to_surface(const AVFrame *frame, mfxFrameSurface1 *surface)
{
switch (frame->format) {
case AV_PIX_FMT_NV12:
case AV_PIX_FMT_P010:
surface->Data.Y = frame->data[0];
surface->Data.UV = frame->data[1];
break;
case AV_PIX_FMT_YUV420P:
surface->Data.Y = frame->data[0];
surface->Data.U = frame->data[1];
surface->Data.V = frame->data[2];
break;
case AV_PIX_FMT_BGRA:
surface->Data.B = frame->data[0];
surface->Data.G = frame->data[0] + 1;
surface->Data.R = frame->data[0] + 2;
surface->Data.A = frame->data[0] + 3;
break;
default:
return MFX_ERR_UNSUPPORTED;
}
surface->Data.Pitch = frame->linesize[0];
surface->Data.TimeStamp = frame->pts;
return 0;
}
static int qsv_transfer_data_from(AVHWFramesContext *ctx, AVFrame *dst,
const AVFrame *src)
{
QSVFramesContext *s = ctx->internal->priv;
mfxFrameSurface1 out = {{ 0 }};
mfxFrameSurface1 *in = (mfxFrameSurface1*)src->data[3];
mfxSyncPoint sync = NULL;
mfxStatus err;
int ret = 0;
while (!s->session_download_init && !s->session_download && !ret) {
#if HAVE_PTHREADS
if (pthread_mutex_trylock(&s->session_lock) == 0) {
#endif
if (!s->session_download_init) {
ret = qsv_init_internal_session(ctx, &s->session_download, 0);
if (s->session_download)
s->session_download_init = 1;
}
#if HAVE_PTHREADS
pthread_mutex_unlock(&s->session_lock);
pthread_cond_signal(&s->session_cond);
} else {
pthread_mutex_lock(&s->session_lock);
while (!s->session_download_init && !s->session_download) {
pthread_cond_wait(&s->session_cond, &s->session_lock);
}
pthread_mutex_unlock(&s->session_lock);
}
#endif
}
if (ret < 0)
return ret;
if (!s->session_download) {
if (s->child_frames_ref)
return qsv_transfer_data_child(ctx, dst, src);
av_log(ctx, AV_LOG_ERROR, "Surface download not possible\n");
return AVERROR(ENOSYS);
}
out.Info = in->Info;
map_frame_to_surface(dst, &out);
do {
err = MFXVideoVPP_RunFrameVPPAsync(s->session_download, in, &out, NULL, &sync);
if (err == MFX_WRN_DEVICE_BUSY)
av_usleep(1);
} while (err == MFX_WRN_DEVICE_BUSY);
if (err < 0 || !sync) {
av_log(ctx, AV_LOG_ERROR, "Error downloading the surface\n");
return AVERROR_UNKNOWN;
}
do {
err = MFXVideoCORE_SyncOperation(s->session_download, sync, 1000);
} while (err == MFX_WRN_IN_EXECUTION);
if (err < 0) {
av_log(ctx, AV_LOG_ERROR, "Error synchronizing the operation: %d\n", err);
return AVERROR_UNKNOWN;
}
return 0;
}
static int qsv_transfer_data_to(AVHWFramesContext *ctx, AVFrame *dst,
const AVFrame *src)
{
QSVFramesContext *s = ctx->internal->priv;
mfxFrameSurface1 in = {{ 0 }};
mfxFrameSurface1 *out = (mfxFrameSurface1*)dst->data[3];
mfxSyncPoint sync = NULL;
mfxStatus err;
int ret = 0;
/* make a copy if the input is not padded as libmfx requires */
AVFrame tmp_frame;
const AVFrame *src_frame;
int realigned = 0;
while (!s->session_upload_init && !s->session_upload && !ret) {
#if HAVE_PTHREADS
if (pthread_mutex_trylock(&s->session_lock) == 0) {
#endif
if (!s->session_upload_init) {
ret = qsv_init_internal_session(ctx, &s->session_upload, 1);
if (s->session_upload)
s->session_upload_init = 1;
}
#if HAVE_PTHREADS
pthread_mutex_unlock(&s->session_lock);
pthread_cond_signal(&s->session_cond);
} else {
pthread_mutex_lock(&s->session_lock);
while (!s->session_upload_init && !s->session_upload) {
pthread_cond_wait(&s->session_cond, &s->session_lock);
}
pthread_mutex_unlock(&s->session_lock);
}
#endif
}
if (ret < 0)
return ret;
if (src->height & 15 || src->linesize[0] & 15) {
realigned = 1;
memset(&tmp_frame, 0, sizeof(tmp_frame));
tmp_frame.format = src->format;
tmp_frame.width = FFALIGN(src->width, 16);
tmp_frame.height = FFALIGN(src->height, 16);
ret = av_frame_get_buffer(&tmp_frame, 32);
if (ret < 0)
return ret;
ret = av_frame_copy(&tmp_frame, src);
if (ret < 0) {
av_frame_unref(&tmp_frame);
return ret;
}
}
src_frame = realigned ? &tmp_frame : src;
if (!s->session_upload) {
if (s->child_frames_ref)
return qsv_transfer_data_child(ctx, dst, src_frame);
av_log(ctx, AV_LOG_ERROR, "Surface upload not possible\n");
return AVERROR(ENOSYS);
}
in.Info = out->Info;
map_frame_to_surface(src_frame, &in);
do {
err = MFXVideoVPP_RunFrameVPPAsync(s->session_upload, &in, out, NULL, &sync);
if (err == MFX_WRN_DEVICE_BUSY)
av_usleep(1);
} while (err == MFX_WRN_DEVICE_BUSY);
if (err < 0 || !sync) {
av_log(ctx, AV_LOG_ERROR, "Error uploading the surface\n");
return AVERROR_UNKNOWN;
}
do {
err = MFXVideoCORE_SyncOperation(s->session_upload, sync, 1000);
} while (err == MFX_WRN_IN_EXECUTION);
if (err < 0) {
av_log(ctx, AV_LOG_ERROR, "Error synchronizing the operation\n");
return AVERROR_UNKNOWN;
}
if (realigned)
av_frame_unref(&tmp_frame);
return 0;
}
static int qsv_frames_derive_to(AVHWFramesContext *dst_ctx,
AVHWFramesContext *src_ctx, int flags)
{
QSVFramesContext *s = dst_ctx->internal->priv;
AVQSVFramesContext *dst_hwctx = dst_ctx->hwctx;
int i;
switch (src_ctx->device_ctx->type) {
#if CONFIG_VAAPI
case AV_HWDEVICE_TYPE_VAAPI:
{
AVVAAPIFramesContext *src_hwctx = src_ctx->hwctx;
s->surfaces_internal = av_mallocz_array(src_hwctx->nb_surfaces,
sizeof(*s->surfaces_internal));
if (!s->surfaces_internal)
return AVERROR(ENOMEM);
for (i = 0; i < src_hwctx->nb_surfaces; i++) {
qsv_init_surface(dst_ctx, &s->surfaces_internal[i]);
s->surfaces_internal[i].Data.MemId = src_hwctx->surface_ids + i;
}
dst_hwctx->nb_surfaces = src_hwctx->nb_surfaces;
dst_hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET;
}
break;
#endif
#if CONFIG_DXVA2
case AV_HWDEVICE_TYPE_DXVA2:
{
AVDXVA2FramesContext *src_hwctx = src_ctx->hwctx;
s->surfaces_internal = av_mallocz_array(src_hwctx->nb_surfaces,
sizeof(*s->surfaces_internal));
if (!s->surfaces_internal)
return AVERROR(ENOMEM);
for (i = 0; i < src_hwctx->nb_surfaces; i++) {
qsv_init_surface(dst_ctx, &s->surfaces_internal[i]);
s->surfaces_internal[i].Data.MemId = (mfxMemId)src_hwctx->surfaces[i];
}
dst_hwctx->nb_surfaces = src_hwctx->nb_surfaces;
if (src_hwctx->surface_type == DXVA2_VideoProcessorRenderTarget)
dst_hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_PROCESSOR_TARGET;
else
dst_hwctx->frame_type = MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET;
}
break;
#endif
default:
return AVERROR(ENOSYS);
}
dst_hwctx->surfaces = s->surfaces_internal;
return 0;
}
static int qsv_map_to(AVHWFramesContext *dst_ctx,
AVFrame *dst, const AVFrame *src, int flags)
{
AVQSVFramesContext *hwctx = dst_ctx->hwctx;
int i, err;
for (i = 0; i < hwctx->nb_surfaces; i++) {
#if CONFIG_VAAPI
if (*(VASurfaceID*)hwctx->surfaces[i].Data.MemId ==
(VASurfaceID)(uintptr_t)src->data[3])
break;
#endif
#if CONFIG_DXVA2
if ((IDirect3DSurface9*)hwctx->surfaces[i].Data.MemId ==
(IDirect3DSurface9*)(uintptr_t)src->data[3])
break;
#endif
}
if (i >= hwctx->nb_surfaces) {
av_log(dst_ctx, AV_LOG_ERROR, "Trying to map from a surface which "
"is not in the mapped frames context.\n");
return AVERROR(EINVAL);
}
err = ff_hwframe_map_create(dst->hw_frames_ctx,
dst, src, NULL, NULL);
if (err)
return err;
dst->width = src->width;
dst->height = src->height;
dst->data[3] = (uint8_t*)&hwctx->surfaces[i];
return 0;
}
static int qsv_frames_get_constraints(AVHWDeviceContext *ctx,
const void *hwconfig,
AVHWFramesConstraints *constraints)
{
int i;
constraints->valid_sw_formats = av_malloc_array(FF_ARRAY_ELEMS(supported_pixel_formats) + 1,
sizeof(*constraints->valid_sw_formats));
if (!constraints->valid_sw_formats)
return AVERROR(ENOMEM);
for (i = 0; i < FF_ARRAY_ELEMS(supported_pixel_formats); i++)
constraints->valid_sw_formats[i] = supported_pixel_formats[i].pix_fmt;
constraints->valid_sw_formats[FF_ARRAY_ELEMS(supported_pixel_formats)] = AV_PIX_FMT_NONE;
constraints->valid_hw_formats = av_malloc_array(2, sizeof(*constraints->valid_hw_formats));
if (!constraints->valid_hw_formats)
return AVERROR(ENOMEM);
constraints->valid_hw_formats[0] = AV_PIX_FMT_QSV;
constraints->valid_hw_formats[1] = AV_PIX_FMT_NONE;
return 0;
}
static void qsv_device_free(AVHWDeviceContext *ctx)
{
AVQSVDeviceContext *hwctx = ctx->hwctx;
QSVDevicePriv *priv = ctx->user_opaque;
if (hwctx->session)
MFXClose(hwctx->session);
av_buffer_unref(&priv->child_device_ctx);
av_freep(&priv);
}
static mfxIMPL choose_implementation(const char *device)
{
static const struct {
const char *name;
mfxIMPL impl;
} impl_map[] = {
{ "auto", MFX_IMPL_AUTO },
{ "sw", MFX_IMPL_SOFTWARE },
{ "hw", MFX_IMPL_HARDWARE },
{ "auto_any", MFX_IMPL_AUTO_ANY },
{ "hw_any", MFX_IMPL_HARDWARE_ANY },
{ "hw2", MFX_IMPL_HARDWARE2 },
{ "hw3", MFX_IMPL_HARDWARE3 },
{ "hw4", MFX_IMPL_HARDWARE4 },
};
mfxIMPL impl = MFX_IMPL_AUTO_ANY;
int i;
if (device) {
for (i = 0; i < FF_ARRAY_ELEMS(impl_map); i++)
if (!strcmp(device, impl_map[i].name)) {
impl = impl_map[i].impl;
break;
}
if (i == FF_ARRAY_ELEMS(impl_map))
impl = strtol(device, NULL, 0);
}
return impl;
}
static int qsv_device_derive_from_child(AVHWDeviceContext *ctx,
mfxIMPL implementation,
AVHWDeviceContext *child_device_ctx,
int flags)
{
AVQSVDeviceContext *hwctx = ctx->hwctx;
mfxVersion ver = { { 3, 1 } };
mfxHDL handle;
mfxHandleType handle_type;
mfxStatus err;
int ret;
switch (child_device_ctx->type) {
#if CONFIG_VAAPI
case AV_HWDEVICE_TYPE_VAAPI:
{
AVVAAPIDeviceContext *child_device_hwctx = child_device_ctx->hwctx;
handle_type = MFX_HANDLE_VA_DISPLAY;
handle = (mfxHDL)child_device_hwctx->display;
}
break;
#endif
#if CONFIG_DXVA2
case AV_HWDEVICE_TYPE_DXVA2:
{
AVDXVA2DeviceContext *child_device_hwctx = child_device_ctx->hwctx;
handle_type = MFX_HANDLE_D3D9_DEVICE_MANAGER;
handle = (mfxHDL)child_device_hwctx->devmgr;
}
break;
#endif
default:
ret = AVERROR(ENOSYS);
goto fail;
}
err = MFXInit(implementation, &ver, &hwctx->session);
if (err != MFX_ERR_NONE) {
av_log(ctx, AV_LOG_ERROR, "Error initializing an MFX session: "
"%d.\n", err);
ret = AVERROR_UNKNOWN;
goto fail;
}
err = MFXQueryVersion(hwctx->session, &ver);
if (err != MFX_ERR_NONE) {
av_log(ctx, AV_LOG_ERROR, "Error querying an MFX session: %d.\n", err);
ret = AVERROR_UNKNOWN;
goto fail;
}
av_log(ctx, AV_LOG_VERBOSE,
"Initialize MFX session: API version is %d.%d, implementation version is %d.%d\n",
MFX_VERSION_MAJOR, MFX_VERSION_MINOR, ver.Major, ver.Minor);
MFXClose(hwctx->session);
err = MFXInit(implementation, &ver, &hwctx->session);
if (err != MFX_ERR_NONE) {
av_log(ctx, AV_LOG_ERROR,
"Error initializing an MFX session: %d.\n", err);
ret = AVERROR_UNKNOWN;
goto fail;
}
err = MFXVideoCORE_SetHandle(hwctx->session, handle_type, handle);
if (err != MFX_ERR_NONE) {
av_log(ctx, AV_LOG_ERROR, "Error setting child device handle: "
"%d\n", err);
ret = AVERROR_UNKNOWN;
goto fail;
}
ret = MFXQueryVersion(hwctx->session,&ver);
if (ret == MFX_ERR_NONE) {
av_log(ctx, AV_LOG_VERBOSE, "MFX compile/runtime API: %d.%d/%d.%d\n",
MFX_VERSION_MAJOR, MFX_VERSION_MINOR, ver.Major, ver.Minor);
}
return 0;
fail:
if (hwctx->session)
MFXClose(hwctx->session);
return ret;
}
static int qsv_device_derive(AVHWDeviceContext *ctx,
AVHWDeviceContext *child_device_ctx, int flags)
{
return qsv_device_derive_from_child(ctx, MFX_IMPL_HARDWARE_ANY,
child_device_ctx, flags);
}
static int qsv_device_create(AVHWDeviceContext *ctx, const char *device,
AVDictionary *opts, int flags)
{
QSVDevicePriv *priv;
enum AVHWDeviceType child_device_type;
AVHWDeviceContext *child_device;
AVDictionary *child_device_opts;
AVDictionaryEntry *e;
mfxIMPL impl;
int ret;
priv = av_mallocz(sizeof(*priv));
if (!priv)
return AVERROR(ENOMEM);
ctx->user_opaque = priv;
ctx->free = qsv_device_free;
e = av_dict_get(opts, "child_device", NULL, 0);
child_device_opts = NULL;
if (CONFIG_VAAPI) {
child_device_type = AV_HWDEVICE_TYPE_VAAPI;
// libmfx does not actually implement VAAPI properly, rather it
// depends on the specific behaviour of a matching iHD driver when
// used on recent Intel hardware. Set options to the VAAPI device
// creation so that we should pick a usable setup by default if
// possible, even when multiple devices and drivers are available.
av_dict_set(&child_device_opts, "kernel_driver", "i915", 0);
av_dict_set(&child_device_opts, "driver", "iHD", 0);
} else if (CONFIG_DXVA2)
child_device_type = AV_HWDEVICE_TYPE_DXVA2;
else {
av_log(ctx, AV_LOG_ERROR, "No supported child device type is enabled\n");
return AVERROR(ENOSYS);
}
ret = av_hwdevice_ctx_create(&priv->child_device_ctx, child_device_type,
e ? e->value : NULL, child_device_opts, 0);
if (ret < 0)
return ret;
child_device = (AVHWDeviceContext*)priv->child_device_ctx->data;
impl = choose_implementation(device);
return qsv_device_derive_from_child(ctx, impl, child_device, 0);
}
const HWContextType ff_hwcontext_type_qsv = {
.type = AV_HWDEVICE_TYPE_QSV,
.name = "QSV",
.device_hwctx_size = sizeof(AVQSVDeviceContext),
.device_priv_size = sizeof(QSVDeviceContext),
.frames_hwctx_size = sizeof(AVQSVFramesContext),
.frames_priv_size = sizeof(QSVFramesContext),
.device_create = qsv_device_create,
.device_derive = qsv_device_derive,
.device_init = qsv_device_init,
.frames_get_constraints = qsv_frames_get_constraints,
.frames_init = qsv_frames_init,
.frames_uninit = qsv_frames_uninit,
.frames_get_buffer = qsv_get_buffer,
.transfer_get_formats = qsv_transfer_get_formats,
.transfer_data_to = qsv_transfer_data_to,
.transfer_data_from = qsv_transfer_data_from,
.map_to = qsv_map_to,
.map_from = qsv_map_from,
.frames_derive_to = qsv_frames_derive_to,
.frames_derive_from = qsv_frames_derive_from,
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_QSV, AV_PIX_FMT_NONE },
};
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