[FFmpeg-devel] [PATCH] hwcontext: add a QSV implementation
Ivan Uskov
ivan.uskov at nablet.com
Mon Sep 19 13:00:56 EEST 2016
Hello nablet,
Saturday, September 17, 2016, 11:32:26 AM, you wrote:
> From: Anton Khirnov <anton at khirnov.net>
> Signed-off-by: nablet developer <sdk at nablet.com>
> ---
> libavutil/Makefile | 3 +
> libavutil/hwcontext.c | 3 +
> libavutil/hwcontext.h | 1 +
> libavutil/hwcontext_internal.h | 1 +
> libavutil/hwcontext_qsv.c | 791
> +++++++++++++++++++++++++++++++++++++++++
> libavutil/hwcontext_qsv.h | 52 +++
> 6 files changed, 851 insertions(+)
> create mode 100644 libavutil/hwcontext_qsv.c
> create mode 100644 libavutil/hwcontext_qsv.h
> diff --git a/libavutil/Makefile b/libavutil/Makefile
> index 1e06176..76da7d4 100644
> --- a/libavutil/Makefile
> +++ b/libavutil/Makefile
> @@ -35,6 +35,7 @@ HEADERS = adler32.h
> hwcontext.h \
> hwcontext_cuda.h \
> hwcontext_dxva2.h \
> + hwcontext_qsv.h \
> hwcontext_vaapi.h \
> hwcontext_vdpau.h \
> imgutils.h \
> @@ -154,6 +155,7 @@ OBJS-$(!HAVE_ATOMICS_NATIVE) += atomic.o
>
> OBJS-$(CONFIG_CUDA) += hwcontext_cuda.o
> OBJS-$(CONFIG_DXVA2) += hwcontext_dxva2.o
> +OBJS-$(CONFIG_QSV) += hwcontext_qsv.o
> OBJS-$(CONFIG_LZO) += lzo.o
> OBJS-$(CONFIG_OPENCL) += opencl.o opencl_internal.o
> OBJS-$(CONFIG_VAAPI) += hwcontext_vaapi.o
> @@ -166,6 +168,7 @@ SLIBOBJS-$(HAVE_GNU_WINDRES) += avutilres.o
>
> SKIPHEADERS-$(CONFIG_CUDA) += hwcontext_cuda.h
> SKIPHEADERS-$(CONFIG_DXVA2) += hwcontext_dxva2.h
> +SKIPHEADERS-$(CONFIG_QSV) += hwcontext_qsv.h
> SKIPHEADERS-$(CONFIG_VAAPI) += hwcontext_vaapi.h
> SKIPHEADERS-$(CONFIG_VDPAU) += hwcontext_vdpau.h
> SKIPHEADERS-$(HAVE_ATOMICS_GCC) += atomic_gcc.h
> diff --git a/libavutil/hwcontext.c b/libavutil/hwcontext.c
> index 1e9e913..be1d73e 100644
> --- a/libavutil/hwcontext.c
> +++ b/libavutil/hwcontext.c
> @@ -35,6 +35,9 @@ static const HWContextType *hw_table[] = {
> #if CONFIG_DXVA2
> &ff_hwcontext_type_dxva2,
> #endif
> +#if CONFIG_QSV
> + &ff_hwcontext_type_qsv,
> +#endif
> #if CONFIG_VAAPI
> &ff_hwcontext_type_vaapi,
> #endif
> diff --git a/libavutil/hwcontext.h b/libavutil/hwcontext.h
> index 4e9da02..5e2af09 100644
> --- a/libavutil/hwcontext.h
> +++ b/libavutil/hwcontext.h
> @@ -29,6 +29,7 @@ enum AVHWDeviceType {
> AV_HWDEVICE_TYPE_CUDA,
> AV_HWDEVICE_TYPE_VAAPI,
> AV_HWDEVICE_TYPE_DXVA2,
> + AV_HWDEVICE_TYPE_QSV,
> };
>
> typedef struct AVHWDeviceInternal AVHWDeviceInternal;
> diff --git a/libavutil/hwcontext_internal.h b/libavutil/hwcontext_internal.h
> index cf832fe..079e42b 100644
> --- a/libavutil/hwcontext_internal.h
> +++ b/libavutil/hwcontext_internal.h
> @@ -101,6 +101,7 @@ struct AVHWFramesInternal {
>
> extern const HWContextType ff_hwcontext_type_cuda;
> extern const HWContextType ff_hwcontext_type_dxva2;
> +extern const HWContextType ff_hwcontext_type_qsv;
> extern const HWContextType ff_hwcontext_type_vaapi;
> extern const HWContextType ff_hwcontext_type_vdpau;
>
> diff --git a/libavutil/hwcontext_qsv.c b/libavutil/hwcontext_qsv.c
> new file mode 100644
> index 0000000..13be5b0
> --- /dev/null
> +++ b/libavutil/hwcontext_qsv.c
> @@ -0,0 +1,791 @@
> +/*
> + * 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 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;
> + mfxSession session_upload;
> +
> + 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 },
> +};
> +
> +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;
> +
+ if (s->>session_upload) {
> + MFXVideoVPP_Close(s->session_upload);
> + MFXClose(s->session_upload);
> + }
+ s->>session_upload = NULL;
> +
+ 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 = ctx->width;
> + child_frames_ctx->height = ctx->height;
> +
> +#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_pool(AVHWFramesContext *ctx, uint32_t fourcc)
> +{
> + QSVFramesContext *s = ctx->internal->priv;
> + AVQSVFramesContext *frames_hwctx = ctx->hwctx;
> + const AVPixFmtDescriptor *desc;
> +
> + int i, ret = 0;
> +
> + desc = av_pix_fmt_desc_get(ctx->sw_format);
> + if (!desc)
> + return AVERROR_BUG;
> +
+ 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++) {
> + mfxFrameSurface1 *surf = &s->surfaces_internal[i];
> +
+ 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 = ctx->width;
+ surf->>Info.CropW = ctx->width;
+ surf->>Info.Height = ctx->height;
+ surf->>Info.CropH = ctx->height;
+ surf->>Info.FrameRateExtN = 25;
+ surf->>Info.FrameRateExtD = 1;
> + }
> +
> + 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_ERROR, "Error opening the internal VPP session\n");
> + return AVERROR_UNKNOWN;
> + }
> +
> + 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 = 0;
> + int i, ret;
> +
> + for (i = 0; i < FF_ARRAY_ELEMS(supported_pixel_formats); i++) {
> + if (supported_pixel_formats[i].pix_fmt == ctx->sw_format) {
> + fourcc = supported_pixel_formats[i].fourcc;
> + break;
> + }
> + }
> + 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;
> + }
> +
> + ret = qsv_init_internal_session(ctx, &s->session_download, 0);
> + if (ret < 0)
> + return ret;
> +
> + ret = qsv_init_internal_session(ctx, &s->session_upload, 1);
> + if (ret < 0)
> + return ret;
> +
> + 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_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;
> +
+ out.Info = in->>Info;
> + out.Data.PitchLow = dst->linesize[0];
> + out.Data.Y = dst->data[0];
> + out.Data.U = dst->data[1];
> + out.Data.V = dst->data[2];
> + out.Data.A = dst->data[3];
> +
> + 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;
> +
+ in.Info = out->>Info;
> + in.Data.PitchLow = src->linesize[0];
> + in.Data.Y = src->data[0];
> + in.Data.U = src->data[1];
> + in.Data.V = src->data[2];
> + in.Data.A = src->data[3];
> +
> + 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;
> + }
> +
> + 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_create(AVHWDeviceContext *ctx, const char *device,
> + AVDictionary *opts, int flags)
> +{
> + AVQSVDeviceContext *hwctx = ctx->hwctx;
> + QSVDevicePriv *priv;
> + enum AVHWDeviceType child_device_type;
> + AVDictionaryEntry *e;
> +
> + mfxVersion ver = { { 3, 1 } };
> + mfxIMPL impl;
> + mfxHDL handle;
> + mfxHandleType handle_type;
> + mfxStatus err;
> + 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);
> +
> + if (CONFIG_VAAPI)
> + child_device_type = AV_HWDEVICE_TYPE_VAAPI;
> + 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, NULL, 0);
> + if (ret < 0)
> + return ret;
> +
> + {
> + AVHWDeviceContext *child_device_ctx =
> (AVHWDeviceContext*)priv->child_device_ctx->data;
> +#if CONFIG_VAAPI
> + AVVAAPIDeviceContext *child_device_hwctx = child_device_ctx->hwctx;
> + handle_type = MFX_HANDLE_VA_DISPLAY;
> + handle = (mfxHDL)child_device_hwctx->display;
> +#elif CONFIG_DXVA2
> + AVDXVA2DeviceContext *child_device_hwctx = child_device_ctx->hwctx;
> + handle_type = MFX_HANDLE_D3D9_DEVICE_MANAGER;
> + handle = (mfxHDL)child_device_hwctx->devmgr;
> +#endif
> + }
> +
> + impl = choose_implementation(device);
> +
> + err = MFXInit(impl, &ver, &hwctx->session);
> + if (err != MFX_ERR_NONE) {
> + av_log(ctx, AV_LOG_ERROR, "Error initializing an MFX session\n");
> + return AVERROR_UNKNOWN;
> + }
> +
> + err = MFXVideoCORE_SetHandle(hwctx->session, handle_type, handle);
> + if (err != MFX_ERR_NONE)
> + return AVERROR_UNKNOWN;
> +
> + return 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_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,
> +
> + .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_QSV, AV_PIX_FMT_NONE },
> +};
> diff --git a/libavutil/hwcontext_qsv.h b/libavutil/hwcontext_qsv.h
> new file mode 100644
> index 0000000..0cd6285
> --- /dev/null
> +++ b/libavutil/hwcontext_qsv.h
> @@ -0,0 +1,52 @@
> +/*
> + * 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
> + */
> +
> +#ifndef AVUTIL_HWCONTEXT_QSV_H
> +#define AVUTIL_HWCONTEXT_QSV_H
> +
> +#include <mfx/mfxvideo.h>
> +
> +/**
> + * @file
> + * An API-specific header for AV_HWDEVICE_TYPE_QSV.
> + *
> + * This API does not support dynamic frame pools. AVHWFramesContext.pool must
> + * return AVBufferRefs whose data pointer points to an mfxFrameSurface1 struct.
> + */
> +
> +/**
> + * This struct is allocated as AVHWDeviceContext.hwctx
> + */
> +typedef struct AVQSVDeviceContext {
> + mfxSession session;
> +} AVQSVDeviceContext;
> +
> +/**
> + * This struct is allocated as AVHWFramesContext.hwctx
> + */
> +typedef struct AVQSVFramesContext {
> + mfxFrameSurface1 *surfaces;
> + int nb_surfaces;
> +
> + /**
> + * A combination of MFX_MEMTYPE_* describing the frame pool.
> + */
> + int frame_type;
> +} AVQSVFramesContext;
> +
> +#endif /* AVUTIL_HWCONTEXT_QSV_H */
This should be a good step to make qsv branches of ffmpeg and libav
closer.
LGTM.
--
Best regards,
Ivan mailto:ivan.uskov at nablet.com
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