Hi,
I've rebuilt ffmpeg using these instructions
https://trac.ffmpeg.org/wiki/CompilationGuide/MSVC from the Visual Studio
Console, installing MinGW directly from the link with the flags --enable-dxva2
and --enable-hwaccel=h264_dxva2 and is almost working but I get a lot
of errors:
-1094995529 "Invalid data found when processing input"
from avcodec_decode_video2 a lot of artifacts and a very poor and
inconsistent image quality.
This is my dxva initialization code:
_pCodecCtx->flags|= CODEC_CAP_DR1;
_pCodecCtx->flags|= CODEC_CAP_HWACCEL;
InputStream *ist = new InputStream ();
ist->hwaccel_id = HWACCEL_AUTO;
ist->hwaccel_device = "dxva2";
ist->dec = _pCodec;
ist->dec_ctx = _pCodecCtx;
_pCodecCtx->coded_width = 1280;
_pCodecCtx->coded_height = 720;
_pCodecCtx->opaque = ist;
dxva2_init(_pCodecCtx);
_pCodecCtx->opaque = ist;
_pCodecCtx->get_buffer2 = ist->hwaccel_get_buffer;
_pCodecCtx->get_format = get_format;
_pCodecCtx->thread_safe_callbacks = 0;
before calling
if (avcodec_open2(_pCodecCtx , _pCodec, 0) < 0) ...
Where get_format is:
static enum AVPixelFormat get_format(AVCodecContext *s, const enum
AVPixelFormat *pix_fmts)
{
InputStream* ist = (InputStream*)s->opaque;
ist->active_hwaccel_id = HWACCEL_DXVA2;
ist->hwaccel_pix_fmt = AV_PIX_FMT_DXVA2_VLD;
return ist->hwaccel_pix_fmt;
}
Find attached my modified ffmpeg_dxva2.cpp and ffmpeg_dxva2.h files from
the original ffmpeg_dxva2.c and the InputStream declaration from ffmpeg.h
For getting the decoded frame I call: dxva2_retrieve_data_call, and then I
convert it to YUV420p (I make the final conversion via pixel shader with
OpenGL texture).
Also, with my old CPU decoder I had 3-6% CPU usage and 5-10% GPU usage (as
I said, I'm converting and painting with OpenGL) and now with the "GPU
Accelerated" one I have 5-13% CPU and 6-12% GPU.
Any thoughts?
Thank you!
2014-08-19 11:25 GMT+02:00 Hector Alonso <hector.alonso.apari...@gmail.com>:
> Hi,
> I'm developing a H264 decoder in Windows and I want to use the hardware
> acceleration capabilities: DXVA2
> I've already built FFMPEG from git (lastest version: N-65404-gd34ec64;
> libavcodec 55.73.101 ...) using Mingw64 for 32bits this way:
>
>
> echo 'export PATH=.:/local/bin:/bin:/mingw64/bin' > .profile
> source .profile
>
>
> git config --global core.autocrlf false
> git clone git://git.videolan.org/x264.git x264 cd x264 ./configure
> --host=x86_64-w64-mingw32 --enable-static --enable-shared && make && make
> install cd .. git clone git://github.com/mstorsjo/fdk-aac.git fdk-aac cd
> fdk-aac ./autogen.sh ./configure --host=x86_64-w64-mingw32 --enable-static
> --enable-shared && make && make install cd ..
>
> git clone git://source.ffmpeg.org/ffmpeg.git ffmpeg cd ffmpeg
> ./configure --enable-gpl --enable-nonfree --enable-libx264
> --enable-libfdk_aac --enable-memalign-hack --enable-runtime-cpudetect
> --enable-dxva2 --enable-decoder?h264_dxva2 --disable-hwaccels
> --enable-hwaccel=h264_dxva2 --enable-static --enable-shared
> --extra-cflags=-I/local/include --extra-ldflags='-L/local/lib -static' &&
> make && make install
>
> I've adapted the newest version of ffmpeg_dxva2.c to C++ (with a header
> file including InputStream, HWAccelID and dxva2_init declarations), now
> it builds with VisualStudio 2012 and everything is running correctly with
> my current decoder (not HW accelerated).
>
> I found an old post of this list (
> https://lists.ffmpeg.org/pipermail/ffmpeg-user/2012-May/006600.html)
> describing the steps for running it, but now te API has changed...
> I've also studied the VLC method, but it is also working with the older
> API (get_buffer instead of get_buffer2, and so).
> In the newest ffmpeg.c they actually use the hwaccel including DXVA2, but
> in quite a complicated way... could you please give an example or a piece
> of advice on how to do it?
>
> 1.- Create a InputStream instance, populate it and address it to
> AVCodecContext->opaque. Which are the needed attributes? It requires width
> and height of the input before opening it!
>
> 2.- call dxva_init() with the decoder AVCodecContext allocated using
> avcodec_alloc_context3 from CODEC_ID_H264 codec before
> calling avcodec_open2 ?
>
> 3.- Call dxva2_retrieve_data() with the decoder AVCodecContext and a
> AV_PIX_FMT_NV12
> frame when avcodec_decode_video2 returns a complete frame (got_output) ?
>
> 4.- Copy (convert) the resulting frame to a YUV420P OpenGL texture, apply
> a pixelformat conversion shader and show it! <- This step is working fine
> (I did it for a separated decoder using Intel Media SDK last week).
>
> (Future step. - use directly the DX surface using OpenGL extensions.)
>
> Now I'm stuck in the first and second steps, when avcodec_decode_video2
> is called it crashes. I've debugged step by step the dxva initialization
> and the DX surfaces are being created correctly. What am I missing?
>
> Thanks!
>
/*
* 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 <windows.h>
#ifdef _WIN32_WINNT
#undef _WIN32_WINNT
#endif
#define _WIN32_WINNT 0x0600
#define DXVA2API_USE_BITFIELDS
extern "C"
{
#include "ffmpeg_dxva2.h"
#include <stdint.h>
#include <d3d9.h>
#include <dxva2api.h>
/* define all the GUIDs used directly here,
to avoid problems with inconsistent dxva2api.h versions in mingw-w64 and different MSVC version */
#include <initguid.h>
DEFINE_GUID(IID_IDirectXVideoDecoderService, 0xfc51a551,0xd5e7,0x11d9,0xaf,0x55,0x00,0x05,0x4e,0x43,0xff,0x02);
DEFINE_GUID(DXVA2_ModeMPEG2_VLD, 0xee27417f, 0x5e28,0x4e65,0xbe,0xea,0x1d,0x26,0xb5,0x08,0xad,0xc9);
DEFINE_GUID(DXVA2_ModeMPEG2and1_VLD, 0x86695f12, 0x340e,0x4f04,0x9f,0xd3,0x92,0x53,0xdd,0x32,0x74,0x60);
DEFINE_GUID(DXVA2_ModeH264_E, 0x1b81be68, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(DXVA2_ModeH264_F, 0x1b81be69, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(DXVADDI_Intel_ModeH264_E, 0x604F8E68, 0x4951,0x4C54,0x88,0xFE,0xAB,0xD2,0x5C,0x15,0xB3,0xD6);
DEFINE_GUID(DXVA2_ModeVC1_D, 0x1b81beA3, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(DXVA2_ModeVC1_D2010, 0x1b81beA4, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(DXVA2_NoEncrypt, 0x1b81beD0, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
DEFINE_GUID(GUID_NULL, 0x00000000, 0x0000,0x0000,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00);
typedef IDirect3D9* WINAPI pDirect3DCreate9(UINT);
typedef HRESULT WINAPI pCreateDeviceManager9(UINT *, IDirect3DDeviceManager9 **);
typedef struct dxva2_mode {
const GUID *guid;
enum AVCodecID codec;
} dxva2_mode;
static const dxva2_mode dxva2_modes[] = {
/* MPEG-2 */
{ &DXVA2_ModeMPEG2_VLD, AV_CODEC_ID_MPEG2VIDEO },
{ &DXVA2_ModeMPEG2and1_VLD, AV_CODEC_ID_MPEG2VIDEO },
/* H.264 */
{ &DXVA2_ModeH264_F, AV_CODEC_ID_H264 },
{ &DXVA2_ModeH264_E, AV_CODEC_ID_H264 },
/* Intel specific H.264 mode */
{ &DXVADDI_Intel_ModeH264_E, AV_CODEC_ID_H264 },
/* VC-1 / WMV3 */
{ &DXVA2_ModeVC1_D2010, AV_CODEC_ID_VC1 },
{ &DXVA2_ModeVC1_D2010, AV_CODEC_ID_WMV3 },
{ &DXVA2_ModeVC1_D, AV_CODEC_ID_VC1 },
{ &DXVA2_ModeVC1_D, AV_CODEC_ID_WMV3 },
{ NULL, AV_CODEC_ID_NONE },
};
typedef struct surface_info {
int used;
uint64_t age;
} surface_info;
typedef struct DXVA2Context {
HMODULE d3dlib;
HMODULE dxva2lib;
HANDLE deviceHandle;
IDirect3D9 *d3d9;
IDirect3DDevice9 *d3d9device;
IDirect3DDeviceManager9 *d3d9devmgr;
IDirectXVideoDecoderService *decoder_service;
IDirectXVideoDecoder *decoder;
GUID decoder_guid;
DXVA2_ConfigPictureDecode decoder_config;
LPDIRECT3DSURFACE9 *surfaces;
surface_info *surface_infos;
uint32_t num_surfaces;
uint64_t surface_age;
AVFrame *tmp_frame;
} DXVA2Context;
typedef struct DXVA2SurfaceWrapper {
DXVA2Context *ctx;
LPDIRECT3DSURFACE9 surface;
IDirectXVideoDecoder *decoder;
} DXVA2SurfaceWrapper;
static void dxva2_destroy_decoder(AVCodecContext *s)
{
InputStream *ist = (InputStream*)s->opaque;
DXVA2Context *ctx = (DXVA2Context*)ist->hwaccel_ctx;
uint32_t i;
if (ctx->surfaces) {
for (i = 0; i < ctx->num_surfaces; i++) {
if (ctx->surfaces[i])
IDirect3DSurface9_Release(ctx->surfaces[i]);
}
}
av_freep(&ctx->surfaces);
av_freep(&ctx->surface_infos);
ctx->num_surfaces = 0;
ctx->surface_age = 0;
if (ctx->decoder) {
//IDirectXVideoDecoder_Release(ctx->decoder);
ctx->decoder->Release();
ctx->decoder = NULL;
}
}
static void dxva2_uninit(AVCodecContext *s)
{
InputStream *ist = (InputStream*)s->opaque;
DXVA2Context *ctx = (DXVA2Context*)ist->hwaccel_ctx;
ist->hwaccel_uninit = NULL;
ist->hwaccel_get_buffer = NULL;
ist->hwaccel_retrieve_data = NULL;
if (ctx->decoder)
dxva2_destroy_decoder(s);
if (ctx->decoder_service)
ctx->decoder_service->Release();//IDirectXVideoDecoderService_Release();
if (ctx->d3d9devmgr && ctx->deviceHandle != INVALID_HANDLE_VALUE)
ctx->d3d9devmgr->CloseDeviceHandle(ctx->deviceHandle);
//IDirect3DDeviceManager9_CloseDeviceHandle(ctx->d3d9devmgr, ctx->deviceHandle);
if (ctx->d3d9devmgr)
ctx->d3d9devmgr->Release();
//IDirect3DDeviceManager9_Release(ctx->d3d9devmgr);
if (ctx->d3d9device)
IDirect3DDevice9_Release(ctx->d3d9device);
if (ctx->d3d9)
IDirect3D9_Release(ctx->d3d9);
if (ctx->d3dlib)
FreeLibrary(ctx->d3dlib);
if (ctx->dxva2lib)
FreeLibrary(ctx->dxva2lib);
av_frame_free(&ctx->tmp_frame);
av_freep(&ist->hwaccel_ctx);
av_freep(&s->hwaccel_context);
}
static void dxva2_release_buffer(void *opaque, uint8_t *data)
{
DXVA2SurfaceWrapper *w = (DXVA2SurfaceWrapper *)opaque;
DXVA2Context *ctx = w->ctx;
uint32_t i;
for (i = 0; i < ctx->num_surfaces; i++) {
if (ctx->surfaces[i] == w->surface) {
ctx->surface_infos[i].used = 0;
break;
}
}
IDirect3DSurface9_Release(w->surface);
w->decoder->Release();//IDirectXVideoDecoder_Release(w->decoder);
av_free(w);
}
static int dxva2_get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
{
InputStream *ist = (InputStream *)s->opaque;
DXVA2Context *ctx = (DXVA2Context *)ist->hwaccel_ctx;
uint32_t i;
int old_unused = -1;
LPDIRECT3DSURFACE9 surface;
DXVA2SurfaceWrapper *w = NULL;
av_assert0(frame->format == AV_PIX_FMT_DXVA2_VLD);
for (i = 0; i < ctx->num_surfaces; i++) {
surface_info *info = &ctx->surface_infos[i];
if (!info->used && (old_unused == -1 || info->age < ctx->surface_infos[old_unused].age))
old_unused = i;
}
if (old_unused == -1) {
av_log(NULL, AV_LOG_ERROR, "No free DXVA2 surface!\n");
return AVERROR(ENOMEM);
}
i = old_unused;
surface = ctx->surfaces[i];
w = (DXVA2SurfaceWrapper*)av_mallocz(sizeof(*w));
if (!w)
return AVERROR(ENOMEM);
frame->buf[0] = av_buffer_create((uint8_t*)surface, 0,
dxva2_release_buffer, w,
AV_BUFFER_FLAG_READONLY);
if (!frame->buf[0]) {
av_free(w);
return AVERROR(ENOMEM);
}
w->ctx = ctx;
w->surface = surface;
IDirect3DSurface9_AddRef(w->surface);
w->decoder = ctx->decoder;
w->decoder->AddRef();//IDirectXVideoDecoder_AddRef(w->decoder);
ctx->surface_infos[i].used = 1;
ctx->surface_infos[i].age = ctx->surface_age++;
frame->data[3] = (uint8_t *)surface;
return 0;
}
static int dxva2_retrieve_data(AVCodecContext *s, AVFrame *frame)
{
LPDIRECT3DSURFACE9 surface = (LPDIRECT3DSURFACE9)frame->data[3];
InputStream *ist = (InputStream *)s->opaque;
DXVA2Context *ctx = (DXVA2Context*)ist->hwaccel_ctx;
D3DSURFACE_DESC surfaceDesc;
D3DLOCKED_RECT LockedRect;
HRESULT hr;
int ret;
IDirect3DSurface9_GetDesc(surface, &surfaceDesc);
ctx->tmp_frame->width = frame->width;
ctx->tmp_frame->height = frame->height;
ctx->tmp_frame->format = AV_PIX_FMT_NV12;
ret = av_frame_get_buffer(ctx->tmp_frame, 32);
if (ret < 0)
return ret;
hr = IDirect3DSurface9_LockRect(surface, &LockedRect, NULL, D3DLOCK_READONLY);
if (FAILED(hr)) {
av_log(NULL, AV_LOG_ERROR, "Unable to lock DXVA2 surface\n");
return AVERROR_UNKNOWN;
}
av_image_copy_plane(ctx->tmp_frame->data[0], ctx->tmp_frame->linesize[0],
(uint8_t*)LockedRect.pBits,
LockedRect.Pitch, frame->width, frame->height);
av_image_copy_plane(ctx->tmp_frame->data[1], ctx->tmp_frame->linesize[1],
(uint8_t*)LockedRect.pBits + LockedRect.Pitch * surfaceDesc.Height,
LockedRect.Pitch, frame->width, frame->height / 2);
IDirect3DSurface9_UnlockRect(surface);
ret = av_frame_copy_props(ctx->tmp_frame, frame);
if (ret < 0)
goto fail;
av_frame_unref(frame);
av_frame_move_ref(frame, ctx->tmp_frame);
return 0;
fail:
av_frame_unref(ctx->tmp_frame);
return ret;
}
static int dxva2_alloc(AVCodecContext *s)
{
InputStream *ist = (InputStream*)s->opaque;
int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
DXVA2Context *ctx;
pDirect3DCreate9 *createD3D = NULL;
pCreateDeviceManager9 *createDeviceManager = NULL;
HRESULT hr;
D3DPRESENT_PARAMETERS d3dpp = {0};
D3DDISPLAYMODE d3ddm;
unsigned resetToken = 0;
UINT adapter = D3DADAPTER_DEFAULT;
ctx = (DXVA2Context*)av_mallocz(sizeof(*ctx));
if (!ctx)
return AVERROR(ENOMEM);
ctx->deviceHandle = INVALID_HANDLE_VALUE;
ist->hwaccel_ctx = ctx;
ist->hwaccel_uninit = dxva2_uninit;
ist->hwaccel_get_buffer = dxva2_get_buffer;
ist->hwaccel_retrieve_data = dxva2_retrieve_data;
ctx->d3dlib = LoadLibrary("d3d9.dll");
if (!ctx->d3dlib) {
av_log(NULL, loglevel, "Failed to load D3D9 library\n");
goto fail;
}
ctx->dxva2lib = LoadLibrary("dxva2.dll");
if (!ctx->dxva2lib) {
av_log(NULL, loglevel, "Failed to load DXVA2 library\n");
goto fail;
}
createD3D = (pDirect3DCreate9 *)GetProcAddress(ctx->d3dlib, "Direct3DCreate9");
if (!createD3D) {
av_log(NULL, loglevel, "Failed to locate Direct3DCreate9\n");
goto fail;
}
createDeviceManager = (pCreateDeviceManager9 *)GetProcAddress(ctx->dxva2lib, "DXVA2CreateDirect3DDeviceManager9");
if (!createDeviceManager) {
av_log(NULL, loglevel, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n");
goto fail;
}
ctx->d3d9 = createD3D(D3D_SDK_VERSION);
if (!ctx->d3d9) {
av_log(NULL, loglevel, "Failed to create IDirect3D object\n");
goto fail;
}
if (ist->hwaccel_device) {
adapter = atoi(ist->hwaccel_device);
av_log(NULL, AV_LOG_INFO, "Using HWAccel device %d\n", adapter);
}
IDirect3D9_GetAdapterDisplayMode(ctx->d3d9, adapter, &d3ddm);
d3dpp.Windowed = TRUE;
d3dpp.BackBufferWidth = 640;
d3dpp.BackBufferHeight = 480;
d3dpp.BackBufferCount = 0;
d3dpp.BackBufferFormat = d3ddm.Format;
d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
d3dpp.Flags = D3DPRESENTFLAG_VIDEO;
hr = IDirect3D9_CreateDevice(ctx->d3d9, adapter, D3DDEVTYPE_HAL, GetShellWindow(),
D3DCREATE_SOFTWARE_VERTEXPROCESSING | D3DCREATE_MULTITHREADED | D3DCREATE_FPU_PRESERVE,
&d3dpp, &ctx->d3d9device);
if (FAILED(hr)) {
av_log(NULL, loglevel, "Failed to create Direct3D device\n");
goto fail;
}
hr = createDeviceManager(&resetToken, &ctx->d3d9devmgr);
if (FAILED(hr)) {
av_log(NULL, loglevel, "Failed to create Direct3D device manager\n");
goto fail;
}
//hr = IDirect3DDeviceManager9_ResetDevice(ctx->d3d9devmgr, ctx->d3d9device, resetToken);
hr = ctx->d3d9devmgr->ResetDevice(ctx->d3d9device, resetToken);
if (FAILED(hr)) {
av_log(NULL, loglevel, "Failed to bind Direct3D device to device manager\n");
goto fail;
}
//hr = IDirect3DDeviceManager9_OpenDeviceHandle(ctx->d3d9devmgr, &ctx->deviceHandle);
hr = ctx->d3d9devmgr->OpenDeviceHandle(&ctx->deviceHandle);
if (FAILED(hr)) {
av_log(NULL, loglevel, "Failed to open device handle\n");
goto fail;
}
//hr = IDirect3DDeviceManager9_GetVideoService(ctx->d3d9devmgr, ctx->deviceHandle, &IID_IDirectXVideoDecoderService, (void **)&ctx->decoder_service);
hr = ctx->d3d9devmgr->GetVideoService(ctx->deviceHandle, IID_IDirectXVideoDecoderService, (void **)&ctx->decoder_service);
if (FAILED(hr)) {
av_log(NULL, loglevel, "Failed to create IDirectXVideoDecoderService\n");
goto fail;
}
ctx->tmp_frame = av_frame_alloc();
if (!ctx->tmp_frame)
goto fail;
s->hwaccel_context = av_mallocz(sizeof(struct dxva_context));
if (!s->hwaccel_context)
goto fail;
return 0;
fail:
dxva2_uninit(s);
return AVERROR(EINVAL);
}
static int dxva2_get_decoder_configuration(AVCodecContext *s, const GUID *device_guid,
const DXVA2_VideoDesc *desc,
DXVA2_ConfigPictureDecode *config)
{
InputStream *ist = (InputStream*)s->opaque;
int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
DXVA2Context *ctx = (DXVA2Context*)ist->hwaccel_ctx;
unsigned cfg_count = 0, best_score = 0;
DXVA2_ConfigPictureDecode *cfg_list = NULL;
DXVA2_ConfigPictureDecode best_cfg = {{0}};
HRESULT hr;
uint32_t i;
//hr = IDirectXVideoDecoderService_GetDecoderConfigurations(ctx->decoder_service, device_guid, desc, NULL, &cfg_count, &cfg_list);
hr = ctx->decoder_service->GetDecoderConfigurations(*device_guid, desc, NULL, &cfg_count, &cfg_list);
if (FAILED(hr)) {
av_log(NULL, loglevel, "Unable to retrieve decoder configurations\n");
return AVERROR(EINVAL);
}
for (i = 0; i < cfg_count; i++) {
DXVA2_ConfigPictureDecode *cfg = &cfg_list[i];
unsigned score;
if (cfg->ConfigBitstreamRaw == 1)
score = 1;
else if (s->codec_id == AV_CODEC_ID_H264 && cfg->ConfigBitstreamRaw == 2)
score = 2;
else
continue;
if (IsEqualGUID(cfg->guidConfigBitstreamEncryption, DXVA2_NoEncrypt))
score += 16;
if (score > best_score) {
best_score = score;
best_cfg = *cfg;
}
}
CoTaskMemFree(cfg_list);
if (!best_score) {
av_log(NULL, loglevel, "No valid decoder configuration available\n");
return AVERROR(EINVAL);
}
*config = best_cfg;
return 0;
}
static int dxva2_create_decoder(AVCodecContext *s)
{
InputStream *ist = (InputStream*)s->opaque;
int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
DXVA2Context *ctx = (DXVA2Context*)ist->hwaccel_ctx;
struct dxva_context *dxva_ctx = (dxva_context *)s->hwaccel_context;
GUID *guid_list = NULL;
unsigned guid_count = 0, i, j;
GUID device_guid = GUID_NULL;
D3DFORMAT target_format = D3DFMT_UNKNOWN;
DXVA2_VideoDesc desc = { 0 };
DXVA2_ConfigPictureDecode config;
HRESULT hr;
int surface_alignment;
int ret;
//hr = IDirectXVideoDecoderService_GetDecoderDeviceGuids(ctx->decoder_service, &guid_count, &guid_list);
hr = ctx->decoder_service->GetDecoderDeviceGuids(&guid_count, &guid_list);
if (FAILED(hr)) {
av_log(NULL, loglevel, "Failed to retrieve decoder device GUIDs\n");
goto fail;
}
for (i = 0; dxva2_modes[i].guid; i++) {
D3DFORMAT *target_list = NULL;
unsigned target_count = 0;
const dxva2_mode *mode = &dxva2_modes[i];
if (mode->codec != s->codec_id)
continue;
for (j = 0; j < guid_count; j++) {
if (IsEqualGUID(*mode->guid, guid_list[j]))
break;
}
if (j == guid_count)
continue;
//hr = IDirectXVideoDecoderService_GetDecoderRenderTargets(ctx->decoder_service, mode->guid, &target_count, &target_list);
hr = ctx->decoder_service->GetDecoderRenderTargets(*mode->guid, &target_count, &target_list);
if (FAILED(hr)) {
continue;
}
for (j = 0; j < target_count; j++) {
const D3DFORMAT format = target_list[j];
if (format == MKTAG('N','V','1','2')) {
target_format = format;
break;
}
}
CoTaskMemFree(target_list);
if (target_format) {
device_guid = *mode->guid;
break;
}
}
CoTaskMemFree(guid_list);
if (IsEqualGUID(device_guid, GUID_NULL)) {
av_log(NULL, loglevel, "No decoder device for codec found\n");
goto fail;
}
desc.SampleWidth = s->coded_width;
desc.SampleHeight = s->coded_height;
desc.Format = target_format;
ret = dxva2_get_decoder_configuration(s, &device_guid, &desc, &config);
if (ret < 0) {
goto fail;
}
/* decoding MPEG-2 requires additional alignment on some Intel GPUs,
but it causes issues for H.264 on certain AMD GPUs..... */
if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO)
surface_alignment = 32;
else
surface_alignment = 16;
/* 4 base work surfaces */
ctx->num_surfaces = 4;
/* add surfaces based on number of possible refs */
if (s->codec_id == AV_CODEC_ID_H264)
ctx->num_surfaces += 16;
else
ctx->num_surfaces += 2;
/* add extra surfaces for frame threading */
if (s->active_thread_type & FF_THREAD_FRAME)
ctx->num_surfaces += s->thread_count;
ctx->surfaces = (LPDIRECT3DSURFACE9*)av_mallocz(ctx->num_surfaces * sizeof(*ctx->surfaces));
ctx->surface_infos = (surface_info*)av_mallocz(ctx->num_surfaces * sizeof(*ctx->surface_infos));
if (!ctx->surfaces || !ctx->surface_infos) {
av_log(NULL, loglevel, "Unable to allocate surface arrays\n");
goto fail;
}
//hr = IDirectXVideoDecoderService_CreateSurface(ctx->decoder_service,
// FFALIGN(s->coded_width, surface_alignment),
// FFALIGN(s->coded_height, surface_alignment),
// ctx->num_surfaces - 1,
// target_format, D3DPOOL_DEFAULT, 0,
// DXVA2_VideoDecoderRenderTarget,
// ctx->surfaces, NULL);
hr = ctx->decoder_service->CreateSurface(FFALIGN(s->coded_width, surface_alignment),
FFALIGN(s->coded_height, surface_alignment),
ctx->num_surfaces - 1,
target_format, D3DPOOL_DEFAULT, 0,
DXVA2_VideoDecoderRenderTarget,
ctx->surfaces, NULL);
if (FAILED(hr)) {
av_log(NULL, loglevel, "Failed to create %d video surfaces\n", ctx->num_surfaces);
goto fail;
}
//hr = IDirectXVideoDecoderService_CreateVideoDecoder(ctx->decoder_service, &device_guid,
// &desc, &config, ctx->surfaces,
// ctx->num_surfaces, &ctx->decoder);
hr = ctx->decoder_service->CreateVideoDecoder(device_guid,
&desc, &config, ctx->surfaces,
ctx->num_surfaces, &ctx->decoder);
if (FAILED(hr)) {
av_log(NULL, loglevel, "Failed to create DXVA2 video decoder\n");
goto fail;
}
ctx->decoder_guid = device_guid;
ctx->decoder_config = config;
dxva_ctx->cfg = &ctx->decoder_config;
dxva_ctx->decoder = ctx->decoder;
dxva_ctx->surface = ctx->surfaces;
dxva_ctx->surface_count = ctx->num_surfaces;
if (IsEqualGUID(ctx->decoder_guid, DXVADDI_Intel_ModeH264_E))
dxva_ctx->workaround |= FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO;
return 0;
fail:
dxva2_destroy_decoder(s);
return AVERROR(EINVAL);
}
int dxva2_init(AVCodecContext *s)
{
InputStream *ist = (InputStream*)s->opaque;
int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
DXVA2Context *ctx;
int ret;
if (!ist->hwaccel_ctx) {
ret = dxva2_alloc(s);
if (ret < 0)
return ret;
}
ctx = (DXVA2Context*)ist->hwaccel_ctx;
if (s->codec_id == AV_CODEC_ID_H264 &&
(s->profile & ~FF_PROFILE_H264_CONSTRAINED) > FF_PROFILE_H264_HIGH) {
av_log(NULL, loglevel, "Unsupported H.264 profile for DXVA2 HWAccel: %d\n", s->profile);
return AVERROR(EINVAL);
}
if (ctx->decoder)
dxva2_destroy_decoder(s);
ret = dxva2_create_decoder(s);
if (ret < 0) {
av_log(NULL, loglevel, "Error creating the DXVA2 decoder\n");
return ret;
}
return 0;
}
int dxva2_retrieve_data_call(AVCodecContext *s, AVFrame *frame)
{
return dxva2_retrieve_data(s, frame);
}
} //extern "C"#include <windows.h>
#ifdef _WIN32_WINNT
#undef _WIN32_WINNT
#endif
#define _WIN32_WINNT 0x0600
extern "C"{
#ifndef __STDC_CONSTANT_MACROS
#define __STDC_CONSTANT_MACROS
#endif
#include <libavcodec/avcodec.h>
#include "libavutil/avassert.h"
#include "libavutil/buffer.h"
#include "libavutil/frame.h"
#include "libavutil/imgutils.h"
#define DXVA2API_USE_BITFIELDS
//#define CINTERFACE
#include "libavcodec/dxva2.h"
enum HWAccelID {
HWACCEL_NONE = 0,
HWACCEL_AUTO,
HWACCEL_VDPAU,
HWACCEL_DXVA2,
HWACCEL_VDA,
};
struct AVStream;
typedef struct InputStream {
int file_index;
AVStream *st;
int discard; /* true if stream data should be discarded */
int user_set_discard;
int decoding_needed; /* true if the packets must be decoded in 'raw_fifo' */
AVCodecContext *dec_ctx;
AVCodec *dec;
AVFrame *decoded_frame;
AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */
int64_t start; /* time when read started */
/* predicted dts of the next packet read for this stream or (when there are
* several frames in a packet) of the next frame in current packet (in AV_TIME_BASE units) */
int64_t next_dts;
int64_t dts; ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
int64_t next_pts; ///< synthetic pts for the next decode frame (in AV_TIME_BASE units)
int64_t pts; ///< current pts of the decoded frame (in AV_TIME_BASE units)
int wrap_correction_done;
int64_t filter_in_rescale_delta_last;
double ts_scale;
int saw_first_ts;
int showed_multi_packet_warning;
AVDictionary *decoder_opts;
AVRational framerate; /* framerate forced with -r */
int top_field_first;
int guess_layout_max;
int resample_height;
int resample_width;
int resample_pix_fmt;
int resample_sample_fmt;
int resample_sample_rate;
int resample_channels;
uint64_t resample_channel_layout;
int fix_sub_duration;
struct { /* previous decoded subtitle and related variables */
int got_output;
int ret;
AVSubtitle subtitle;
} prev_sub;
struct sub2video {
int64_t last_pts;
int64_t end_pts;
AVFrame *frame;
int w, h;
} sub2video;
int dr1;
// Not used for plain decoder
///* decoded data from this stream goes into all those filters
// * currently video and audio only */
//InputFilter **filters;
//int nb_filters;
//int reinit_filters;
/* hwaccel options */
enum HWAccelID hwaccel_id;
char *hwaccel_device;
/* hwaccel context */
enum HWAccelID active_hwaccel_id;
void *hwaccel_ctx;
void (*hwaccel_uninit)(AVCodecContext *s);
int (*hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags);
int (*hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame);
enum AVPixelFormat hwaccel_pix_fmt;
enum AVPixelFormat hwaccel_retrieved_pix_fmt;
/* stats */
// combined size of all the packets read
uint64_t data_size;
/* number of packets successfully read for this stream */
uint64_t nb_packets;
// number of frames/samples retrieved from the decoder
uint64_t frames_decoded;
uint64_t samples_decoded;
} InputStream;
struct AVCodecContext;
int dxva2_init(AVCodecContext *s);
int dxva2_retrieve_data_call(AVCodecContext *s, AVFrame *frame);
}
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