[FFmpeg-cvslog] hwcontext: add a QSV implementation
Anton Khirnov
git at videolan.org
Wed Sep 28 19:32:08 EEST 2016
ffmpeg | branch: master | Anton Khirnov <anton at khirnov.net> | Wed Jan 13 14:25:58 2016 +0100| [59e7361cc791e5103be1712dc59a2055f118d0da] | committer: Anton Khirnov
hwcontext: add a QSV implementation
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=59e7361cc791e5103be1712dc59a2055f118d0da
---
doc/APIchanges | 4 +
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 | 53 +++
libavutil/version.h | 2 +-
8 files changed, 857 insertions(+), 1 deletion(-)
diff --git a/doc/APIchanges b/doc/APIchanges
index e251490..74316ed 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -13,6 +13,10 @@ libavutil: 2015-08-28
API changes, most recent first:
+2016-xx-xx - xxxxxxx - lavu 55.16.0 - hwcontext.h hwcontext_qsv.h
+ Add AV_HWDEVICE_TYPE_QSV and a new installed header with QSV-specific
+ hwcontext definitions.
+
2016-xx-xx - xxxxxxx - lavc 57.23.0 - avcodec.h
AVCodecContext.hw_frames_ctx now may be used by decoders.
diff --git a/libavutil/Makefile b/libavutil/Makefile
index 637ad3b..b10b4d2 100644
--- a/libavutil/Makefile
+++ b/libavutil/Makefile
@@ -27,6 +27,7 @@ HEADERS = adler32.h \
hwcontext.h \
hwcontext_cuda.h \
hwcontext_dxva2.h \
+ hwcontext_qsv.h \
hwcontext_vaapi.h \
hwcontext_vdpau.h \
imgutils.h \
@@ -110,6 +111,7 @@ OBJS = adler32.o \
OBJS-$(CONFIG_CUDA) += hwcontext_cuda.o
OBJS-$(CONFIG_DXVA2) += hwcontext_dxva2.o
+OBJS-$(CONFIG_LIBMFX) += hwcontext_qsv.o
OBJS-$(CONFIG_LZO) += lzo.o
OBJS-$(CONFIG_VAAPI) += hwcontext_vaapi.o
OBJS-$(CONFIG_VDPAU) += hwcontext_vdpau.o
@@ -118,6 +120,7 @@ OBJS += $(COMPAT_OBJS:%=../compat/%)
SKIPHEADERS-$(CONFIG_CUDA) += hwcontext_cuda.h
SKIPHEADERS-$(CONFIG_DXVA2) += hwcontext_dxva2.h
+SKIPHEADERS-$(CONFIG_LIBMFX) += 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 3028b67..96b316a 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_LIBMFX
+ &ff_hwcontext_type_qsv,
+#endif
#if CONFIG_VAAPI
&ff_hwcontext_type_vaapi,
#endif
diff --git a/libavutil/hwcontext.h b/libavutil/hwcontext.h
index d8e7c3f..f15cf7c 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 2e1daae..a391e25 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..b222da2
--- /dev/null
+++ b/libavutil/hwcontext_qsv.c
@@ -0,0 +1,791 @@
+/*
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; 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..8f9d3d2
--- /dev/null
+++ b/libavutil/hwcontext_qsv.h
@@ -0,0 +1,53 @@
+/*
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; 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
+ * contain 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 */
+
diff --git a/libavutil/version.h b/libavutil/version.h
index 09d3713..d13794c 100644
--- a/libavutil/version.h
+++ b/libavutil/version.h
@@ -54,7 +54,7 @@
*/
#define LIBAVUTIL_VERSION_MAJOR 55
-#define LIBAVUTIL_VERSION_MINOR 15
+#define LIBAVUTIL_VERSION_MINOR 16
#define LIBAVUTIL_VERSION_MICRO 0
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
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