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ffmpeg/libavcodec/qsv.c

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/*
* Intel MediaSDK QSV encoder/decoder shared code
*
* 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 <mfx/mfxvideo.h>
#include <mfx/mfxplugin.h>
#include <stdio.h>
#include <string.h>
#include "libavutil/avstring.h"
#include "libavutil/common.h"
#include "libavutil/error.h"
#include "libavutil/hwcontext.h"
#include "libavutil/hwcontext_qsv.h"
#include "avcodec.h"
#include "qsv_internal.h"
int ff_qsv_codec_id_to_mfx(enum AVCodecID codec_id)
{
switch (codec_id) {
case AV_CODEC_ID_H264:
return MFX_CODEC_AVC;
#if QSV_VERSION_ATLEAST(1, 8)
case AV_CODEC_ID_HEVC:
return MFX_CODEC_HEVC;
#endif
case AV_CODEC_ID_MPEG1VIDEO:
case AV_CODEC_ID_MPEG2VIDEO:
return MFX_CODEC_MPEG2;
case AV_CODEC_ID_VC1:
return MFX_CODEC_VC1;
default:
break;
}
return AVERROR(ENOSYS);
}
int ff_qsv_error(int mfx_err)
{
switch (mfx_err) {
case MFX_ERR_NONE:
return 0;
case MFX_ERR_MEMORY_ALLOC:
case MFX_ERR_NOT_ENOUGH_BUFFER:
return AVERROR(ENOMEM);
case MFX_ERR_INVALID_HANDLE:
return AVERROR(EINVAL);
case MFX_ERR_DEVICE_FAILED:
case MFX_ERR_DEVICE_LOST:
case MFX_ERR_LOCK_MEMORY:
return AVERROR(EIO);
case MFX_ERR_NULL_PTR:
case MFX_ERR_UNDEFINED_BEHAVIOR:
case MFX_ERR_NOT_INITIALIZED:
return AVERROR_BUG;
case MFX_ERR_UNSUPPORTED:
case MFX_ERR_NOT_FOUND:
return AVERROR(ENOSYS);
case MFX_ERR_MORE_DATA:
case MFX_ERR_MORE_SURFACE:
case MFX_ERR_MORE_BITSTREAM:
return AVERROR(EAGAIN);
case MFX_ERR_INCOMPATIBLE_VIDEO_PARAM:
case MFX_ERR_INVALID_VIDEO_PARAM:
return AVERROR(EINVAL);
case MFX_ERR_ABORTED:
case MFX_ERR_UNKNOWN:
default:
return AVERROR_UNKNOWN;
}
}
int ff_qsv_map_pixfmt(enum AVPixelFormat format, uint32_t *fourcc)
{
switch (format) {
case AV_PIX_FMT_YUV420P:
case AV_PIX_FMT_YUVJ420P:
*fourcc = MFX_FOURCC_NV12;
return AV_PIX_FMT_NV12;
default:
return AVERROR(ENOSYS);
}
}
static int qsv_load_plugins(mfxSession session, const char *load_plugins,
void *logctx)
{
if (!load_plugins || !*load_plugins)
return 0;
while (*load_plugins) {
mfxPluginUID uid;
mfxStatus ret;
int i, err = 0;
char *plugin = av_get_token(&load_plugins, ":");
if (!plugin)
return AVERROR(ENOMEM);
if (strlen(plugin) != 2 * sizeof(uid.Data)) {
av_log(logctx, AV_LOG_ERROR, "Invalid plugin UID length\n");
err = AVERROR(EINVAL);
goto load_plugin_fail;
}
for (i = 0; i < sizeof(uid.Data); i++) {
err = sscanf(plugin + 2 * i, "%2hhx", uid.Data + i);
if (err != 1) {
av_log(logctx, AV_LOG_ERROR, "Invalid plugin UID\n");
err = AVERROR(EINVAL);
goto load_plugin_fail;
}
}
ret = MFXVideoUSER_Load(session, &uid, 1);
if (ret < 0) {
av_log(logctx, AV_LOG_ERROR, "Could not load the requested plugin: %s\n",
plugin);
err = ff_qsv_error(ret);
goto load_plugin_fail;
}
if (*load_plugins)
load_plugins++;
load_plugin_fail:
av_freep(&plugin);
if (err < 0)
return err;
}
return 0;
}
int ff_qsv_init_internal_session(AVCodecContext *avctx, mfxSession *session,
const char *load_plugins)
{
mfxIMPL impl = MFX_IMPL_AUTO_ANY;
mfxVersion ver = { { QSV_VERSION_MINOR, QSV_VERSION_MAJOR } };
const char *desc;
int ret;
ret = MFXInit(impl, &ver, session);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Error initializing an internal MFX session\n");
return ff_qsv_error(ret);
}
ret = qsv_load_plugins(*session, load_plugins, avctx);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Error loading plugins\n");
return ret;
}
MFXQueryIMPL(*session, &impl);
switch (MFX_IMPL_BASETYPE(impl)) {
case MFX_IMPL_SOFTWARE:
desc = "software";
break;
case MFX_IMPL_HARDWARE:
case MFX_IMPL_HARDWARE2:
case MFX_IMPL_HARDWARE3:
case MFX_IMPL_HARDWARE4:
desc = "hardware accelerated";
break;
default:
desc = "unknown";
}
av_log(avctx, AV_LOG_VERBOSE,
"Initialized an internal MFX session using %s implementation\n",
desc);
return 0;
}
static mfxStatus qsv_frame_alloc(mfxHDL pthis, mfxFrameAllocRequest *req,
mfxFrameAllocResponse *resp)
{
QSVFramesContext *ctx = pthis;
mfxFrameInfo *i = &req->Info;
mfxFrameInfo *i1 = &ctx->info;
if (!(req->Type & MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET) ||
!(req->Type & (MFX_MEMTYPE_FROM_DECODE | MFX_MEMTYPE_FROM_ENCODE)) ||
!(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 = ctx->mids;
resp->NumFrameActual = ctx->nb_mids;
return MFX_ERR_NONE;
}
static mfxStatus qsv_frame_free(mfxHDL pthis, mfxFrameAllocResponse *resp)
{
return MFX_ERR_NONE;
}
static mfxStatus qsv_frame_lock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
{
return MFX_ERR_UNSUPPORTED;
}
static mfxStatus qsv_frame_unlock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
{
return MFX_ERR_UNSUPPORTED;
}
static mfxStatus qsv_frame_get_hdl(mfxHDL pthis, mfxMemId mid, mfxHDL *hdl)
{
*hdl = mid;
return MFX_ERR_NONE;
}
int ff_qsv_init_session_hwcontext(AVCodecContext *avctx, mfxSession *psession,
QSVFramesContext *qsv_frames_ctx,
const char *load_plugins, int opaque)
{
static const mfxHandleType handle_types[] = {
MFX_HANDLE_VA_DISPLAY,
MFX_HANDLE_D3D9_DEVICE_MANAGER,
MFX_HANDLE_D3D11_DEVICE,
};
mfxFrameAllocator frame_allocator = {
.pthis = qsv_frames_ctx,
.Alloc = qsv_frame_alloc,
.Lock = qsv_frame_lock,
.Unlock = qsv_frame_unlock,
.GetHDL = qsv_frame_get_hdl,
.Free = qsv_frame_free,
};
AVHWFramesContext *frames_ctx = (AVHWFramesContext*)qsv_frames_ctx->hw_frames_ctx->data;
AVQSVFramesContext *frames_hwctx = frames_ctx->hwctx;
AVQSVDeviceContext *device_hwctx = frames_ctx->device_ctx->hwctx;
mfxSession parent_session = device_hwctx->session;
mfxSession session;
mfxVersion ver;
mfxIMPL impl;
mfxHDL handle = NULL;
mfxHandleType handle_type;
mfxStatus err;
int i, ret;
err = MFXQueryIMPL(parent_session, &impl);
if (err == MFX_ERR_NONE)
err = MFXQueryVersion(parent_session, &ver);
if (err != MFX_ERR_NONE) {
av_log(avctx, AV_LOG_ERROR, "Error querying the session attributes\n");
return ff_qsv_error(err);
}
for (i = 0; i < FF_ARRAY_ELEMS(handle_types); i++) {
err = MFXVideoCORE_GetHandle(parent_session, handle_types[i], &handle);
if (err == MFX_ERR_NONE) {
handle_type = handle_types[i];
break;
}
handle = NULL;
}
if (!handle) {
av_log(avctx, AV_LOG_VERBOSE, "No supported hw handle could be retrieved "
"from the session\n");
}
err = MFXInit(impl, &ver, &session);
if (err != MFX_ERR_NONE) {
av_log(avctx, AV_LOG_ERROR,
"Error initializing a child MFX session: %d\n", err);
return ff_qsv_error(err);
}
if (handle) {
err = MFXVideoCORE_SetHandle(session, handle_type, handle);
if (err != MFX_ERR_NONE) {
av_log(avctx, AV_LOG_ERROR, "Error setting a HW handle: %d\n", err);
return ff_qsv_error(err);
}
}
ret = qsv_load_plugins(session, load_plugins, avctx);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Error loading plugins\n");
return ret;
}
if (!opaque) {
av_freep(&qsv_frames_ctx->mids);
qsv_frames_ctx->mids = av_mallocz_array(frames_hwctx->nb_surfaces,
sizeof(*qsv_frames_ctx->mids));
if (!qsv_frames_ctx->mids)
return AVERROR(ENOMEM);
qsv_frames_ctx->info = frames_hwctx->surfaces[0].Info;
qsv_frames_ctx->nb_mids = frames_hwctx->nb_surfaces;
for (i = 0; i < frames_hwctx->nb_surfaces; i++)
qsv_frames_ctx->mids[i] = frames_hwctx->surfaces[i].Data.MemId;
err = MFXVideoCORE_SetFrameAllocator(session, &frame_allocator);
if (err != MFX_ERR_NONE) {
av_log(avctx, AV_LOG_ERROR, "Error setting a frame allocator: %d\n", err);
return ff_qsv_error(err);
}
}
*psession = session;
return 0;
}
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