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authorMichael Wootton <michael.wootton@amd.com>2018-01-03 12:55:53 -0500
committerLuca Barbato <lu_zero@gentoo.org>2018-01-04 18:15:56 +0100
commit34c113335b53d83ed343de49741f0823aa1f8cc6 (patch)
tree1e5f74145227f6569bf8c3f77241f4f8b991b73a /libavcodec/amfenc.c
parent7b0b5bc810cdb9ef100492c9a9f2d30602c04336 (diff)
downloadffmpeg-34c113335b53d83ed343de49741f0823aa1f8cc6.tar.gz
Add support for H.264 and HEVC hardware encoding for AMD GPUs based on AMF SDK
Requires AMF headers for at least version 1.4.4.1. Signed-off-by: Mikhail Mironov <mikhail.mironov@amd.com> Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Diffstat (limited to 'libavcodec/amfenc.c')
-rw-r--r--libavcodec/amfenc.c608
1 files changed, 608 insertions, 0 deletions
diff --git a/libavcodec/amfenc.c b/libavcodec/amfenc.c
new file mode 100644
index 0000000000..f305a48bf7
--- /dev/null
+++ b/libavcodec/amfenc.c
@@ -0,0 +1,608 @@
+/*
+ * AMD AMF support
+ * Copyright (C) 2017 Luca Barbato
+ * Copyright (C) 2017 Mikhail Mironov <mikhail.mironov@amd.com>
+ *
+ * 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 "libavutil/avassert.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/hwcontext.h"
+#include "internal.h"
+#if CONFIG_D3D11VA
+#include "libavutil/hwcontext_d3d11va.h"
+#endif
+#include "libavutil/mem.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/time.h"
+
+#include "amfenc.h"
+
+#if CONFIG_D3D11VA
+#include <d3d11.h>
+#endif
+
+#if HAVE_WINDOWS_H
+#include <windows.h>
+#define dlopen(filename, flags) LoadLibrary((filename))
+#define dlsym(handle, symbol) GetProcAddress(handle, symbol)
+#define dlclose(handle) FreeLibrary(handle)
+#else
+#include <dlfcn.h>
+#endif
+
+#define PTS_PROP L"PtsProp"
+
+const enum AVPixelFormat ff_amf_pix_fmts[] = {
+ AV_PIX_FMT_NV12,
+ AV_PIX_FMT_YUV420P,
+#if CONFIG_D3D11VA
+ AV_PIX_FMT_D3D11,
+#endif
+ AV_PIX_FMT_NONE
+};
+
+typedef struct FormatMap {
+ enum AVPixelFormat av_format;
+ enum AMF_SURFACE_FORMAT amf_format;
+} FormatMap;
+
+static const FormatMap format_map[] =
+{
+ { AV_PIX_FMT_NONE, AMF_SURFACE_UNKNOWN },
+ { AV_PIX_FMT_NV12, AMF_SURFACE_NV12 },
+// { AV_PIX_FMT_BGR0, AMF_SURFACE_BGRA },
+// { AV_PIX_FMT_RGB0, AMF_SURFACE_RGBA },
+ { AV_PIX_FMT_GRAY8, AMF_SURFACE_GRAY8 },
+ { AV_PIX_FMT_YUV420P, AMF_SURFACE_YUV420P },
+ { AV_PIX_FMT_YUYV422, AMF_SURFACE_YUY2 },
+ { AV_PIX_FMT_D3D11, AMF_SURFACE_NV12 },
+};
+
+
+static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
+ return desc->flags & AV_PIX_FMT_FLAG_HWACCEL;
+}
+
+
+static enum AMF_SURFACE_FORMAT amf_av_to_amf_format(enum AVPixelFormat fmt)
+{
+ int i;
+ for (i = 0; i < amf_countof(format_map); i++) {
+ if (format_map[i].av_format == fmt) {
+ return format_map[i].amf_format;
+ }
+ }
+ return AMF_SURFACE_UNKNOWN;
+}
+
+static void AMF_CDECL_CALL AMFTraceWriter_Write(AMFTraceWriter *pThis,
+ const wchar_t *scope, const wchar_t *message)
+{
+ AmfTraceWriter *tracer = (AmfTraceWriter*)pThis;
+ av_log(tracer->avctx, AV_LOG_DEBUG, "%ls: %ls", scope, message); // \n is provided from AMF
+}
+
+static void AMF_CDECL_CALL AMFTraceWriter_Flush(AMFTraceWriter *pThis)
+{
+}
+
+static AMFTraceWriterVtbl tracer_vtbl =
+{
+ .Write = AMFTraceWriter_Write,
+ .Flush = AMFTraceWriter_Flush,
+};
+
+static int amf_load_library(AVCodecContext *avctx)
+{
+ AmfContext *ctx = avctx->priv_data;
+ AMFInit_Fn init_fun = NULL;
+ AMFQueryVersion_Fn version_fun = NULL;
+ AMF_RESULT res = AMF_OK;
+
+ ctx->eof = 0;
+ ctx->delayed_drain = 0;
+ ctx->hw_frames_ctx = NULL;
+ ctx->hw_device_ctx = NULL;
+ ctx->delayed_surface = NULL;
+ ctx->delayed_frame = av_frame_alloc();
+ if (!ctx->delayed_frame) {
+ return AVERROR(ENOMEM);
+ }
+ // hardcoded to current HW queue size - will realloc in timestamp_queue_enqueue() if too small
+ ctx->timestamp_list = av_fifo_alloc((avctx->max_b_frames + 16) * sizeof(int64_t));
+ if (!ctx->timestamp_list) {
+ return AVERROR(ENOMEM);
+ }
+ ctx->dts_delay = 0;
+
+
+ ctx->library = dlopen(AMF_DLL_NAMEA, RTLD_NOW | RTLD_LOCAL);
+ AMF_RETURN_IF_FALSE(ctx, ctx->library != NULL,
+ AVERROR_UNKNOWN, "DLL %s failed to open\n", AMF_DLL_NAMEA);
+
+ init_fun = (AMFInit_Fn)dlsym(ctx->library, AMF_INIT_FUNCTION_NAME);
+ AMF_RETURN_IF_FALSE(ctx, init_fun != NULL, AVERROR_UNKNOWN, "DLL %s failed to find function %s\n", AMF_DLL_NAMEA, AMF_INIT_FUNCTION_NAME);
+
+ version_fun = (AMFQueryVersion_Fn)dlsym(ctx->library, AMF_QUERY_VERSION_FUNCTION_NAME);
+ AMF_RETURN_IF_FALSE(ctx, version_fun != NULL, AVERROR_UNKNOWN, "DLL %s failed to find function %s\n", AMF_DLL_NAMEA, AMF_QUERY_VERSION_FUNCTION_NAME);
+
+ res = version_fun(&ctx->version);
+ AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_UNKNOWN, "%s failed with error %d\n", AMF_QUERY_VERSION_FUNCTION_NAME, res);
+ res = init_fun(AMF_FULL_VERSION, &ctx->factory);
+ AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_UNKNOWN, "%s failed with error %d\n", AMF_INIT_FUNCTION_NAME, res);
+ res = ctx->factory->pVtbl->GetTrace(ctx->factory, &ctx->trace);
+ AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_UNKNOWN, "GetTrace() failed with error %d\n", res);
+ res = ctx->factory->pVtbl->GetDebug(ctx->factory, &ctx->debug);
+ AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_UNKNOWN, "GetDebug() failed with error %d\n", res);
+ return 0;
+}
+
+static int amf_init_context(AVCodecContext *avctx)
+{
+ AmfContext *ctx = avctx->priv_data;
+ AMF_RESULT res = AMF_OK;
+
+ // configure AMF logger
+ // the return of these functions indicates old state and do not affect behaviour
+ ctx->trace->pVtbl->EnableWriter(ctx->trace, AMF_TRACE_WRITER_DEBUG_OUTPUT, ctx->log_to_dbg != 0 );
+ if (ctx->log_to_dbg)
+ ctx->trace->pVtbl->SetWriterLevel(ctx->trace, AMF_TRACE_WRITER_DEBUG_OUTPUT, AMF_TRACE_TRACE);
+ ctx->trace->pVtbl->EnableWriter(ctx->trace, AMF_TRACE_WRITER_CONSOLE, 0);
+ ctx->trace->pVtbl->SetGlobalLevel(ctx->trace, AMF_TRACE_TRACE);
+
+ // connect AMF logger to av_log
+ ctx->tracer.vtbl = &tracer_vtbl;
+ ctx->tracer.avctx = avctx;
+ ctx->trace->pVtbl->RegisterWriter(ctx->trace, ctx->writer_id, (AMFTraceWriter*)&ctx->tracer, 1);
+ ctx->trace->pVtbl->SetWriterLevel(ctx->trace, ctx->writer_id, AMF_TRACE_TRACE);
+
+ res = ctx->factory->pVtbl->CreateContext(ctx->factory, &ctx->context);
+ AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_UNKNOWN, "CreateContext() failed with error %d\n", res);
+ // try to reuse existing DX device
+#if CONFIG_D3D11VA
+ if (avctx->hw_frames_ctx) {
+ AVHWFramesContext *device_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
+ if (device_ctx->device_ctx->type == AV_HWDEVICE_TYPE_D3D11VA) {
+ if (amf_av_to_amf_format(device_ctx->sw_format) != AMF_SURFACE_UNKNOWN) {
+ if (device_ctx->device_ctx->hwctx) {
+ AVD3D11VADeviceContext *device_d3d11 = (AVD3D11VADeviceContext *)device_ctx->device_ctx->hwctx;
+ res = ctx->context->pVtbl->InitDX11(ctx->context, device_d3d11->device, AMF_DX11_1);
+ if (res == AMF_OK) {
+ ctx->hw_frames_ctx = av_buffer_ref(avctx->hw_frames_ctx);
+ if (!ctx->hw_frames_ctx) {
+ return AVERROR(ENOMEM);
+ }
+ } else {
+ if(res == AMF_NOT_SUPPORTED)
+ av_log(avctx, AV_LOG_INFO, "avctx->hw_frames_ctx has D3D11 device which doesn't have D3D11VA interface, switching to default\n");
+ else
+ av_log(avctx, AV_LOG_INFO, "avctx->hw_frames_ctx has non-AMD device, switching to default\n");
+ }
+ }
+ } else {
+ av_log(avctx, AV_LOG_INFO, "avctx->hw_frames_ctx has format not uspported by AMF, switching to default\n");
+ }
+ }
+ } else if (avctx->hw_device_ctx) {
+ AVHWDeviceContext *device_ctx = (AVHWDeviceContext*)(avctx->hw_device_ctx->data);
+ if (device_ctx->type == AV_HWDEVICE_TYPE_D3D11VA) {
+ if (device_ctx->hwctx) {
+ AVD3D11VADeviceContext *device_d3d11 = (AVD3D11VADeviceContext *)device_ctx->hwctx;
+ res = ctx->context->pVtbl->InitDX11(ctx->context, device_d3d11->device, AMF_DX11_1);
+ if (res == AMF_OK) {
+ ctx->hw_device_ctx = av_buffer_ref(avctx->hw_device_ctx);
+ if (!ctx->hw_device_ctx) {
+ return AVERROR(ENOMEM);
+ }
+ } else {
+ if (res == AMF_NOT_SUPPORTED)
+ av_log(avctx, AV_LOG_INFO, "avctx->hw_device_ctx has D3D11 device which doesn't have D3D11VA interface, switching to default\n");
+ else
+ av_log(avctx, AV_LOG_INFO, "avctx->hw_device_ctx has non-AMD device, switching to default\n");
+ }
+ }
+ }
+ }
+#endif
+ if (!ctx->hw_frames_ctx && !ctx->hw_device_ctx) {
+ res = ctx->context->pVtbl->InitDX11(ctx->context, NULL, AMF_DX11_1);
+ if (res != AMF_OK) {
+ res = ctx->context->pVtbl->InitDX9(ctx->context, NULL);
+ AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_UNKNOWN, "InitDX9() failed with error %d\n", res);
+ }
+ }
+ return 0;
+}
+
+static int amf_init_encoder(AVCodecContext *avctx)
+{
+ AmfContext *ctx = avctx->priv_data;
+ const wchar_t *codec_id = NULL;
+ AMF_RESULT res = AMF_OK;
+
+ switch (avctx->codec->id) {
+ case AV_CODEC_ID_H264:
+ codec_id = AMFVideoEncoderVCE_AVC;
+ break;
+ case AV_CODEC_ID_HEVC:
+ codec_id = AMFVideoEncoder_HEVC;
+ break;
+ default:
+ break;
+ }
+ AMF_RETURN_IF_FALSE(ctx, codec_id != NULL, AVERROR(EINVAL), "Codec %d is not supported\n", avctx->codec->id);
+
+ ctx->format = amf_av_to_amf_format(avctx->pix_fmt);
+ AMF_RETURN_IF_FALSE(ctx, ctx->format != AMF_SURFACE_UNKNOWN, AVERROR(EINVAL), "Format %d is not supported\n", avctx->pix_fmt);
+
+ res = ctx->factory->pVtbl->CreateComponent(ctx->factory, ctx->context, codec_id, &ctx->encoder);
+ AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_ENCODER_NOT_FOUND, "CreateComponent(%ls) failed with error %d\n", codec_id, res);
+
+ return 0;
+}
+
+int av_cold ff_amf_encode_close(AVCodecContext *avctx)
+{
+ AmfContext *ctx = avctx->priv_data;
+ if (ctx->delayed_surface)
+ {
+ ctx->delayed_surface->pVtbl->Release(ctx->delayed_surface);
+ ctx->delayed_surface = NULL;
+ }
+
+ if (ctx->encoder) {
+ ctx->encoder->pVtbl->Terminate(ctx->encoder);
+ ctx->encoder->pVtbl->Release(ctx->encoder);
+ ctx->encoder = NULL;
+ }
+
+ if (ctx->context) {
+ ctx->context->pVtbl->Terminate(ctx->context);
+ ctx->context->pVtbl->Release(ctx->context);
+ ctx->context = NULL;
+ }
+ av_buffer_unref(&ctx->hw_device_ctx);
+ av_buffer_unref(&ctx->hw_frames_ctx);
+
+ if (ctx->trace) {
+ ctx->trace->pVtbl->UnregisterWriter(ctx->trace, ctx->writer_id);
+ }
+ if (ctx->library) {
+ dlclose(ctx->library);
+ ctx->library = NULL;
+ }
+ ctx->trace = NULL;
+ ctx->debug = NULL;
+ ctx->factory = NULL;
+ ctx->version = 0;
+ ctx->delayed_drain = 0;
+ av_frame_free(&ctx->delayed_frame);
+ av_fifo_free(ctx->timestamp_list);
+ ctx->timestamp_list = NULL;
+ ctx->timestamp_last = 0;
+
+ return 0;
+}
+
+static int amf_copy_surface(AVCodecContext *avctx, const AVFrame *frame,
+ AMFSurface* surface)
+{
+ AVFrame *sw_frame = NULL;
+ AMFPlane *plane = NULL;
+ uint8_t *dst_data[4];
+ int dst_linesize[4];
+ int ret = 0;
+ int planes;
+ int i;
+
+ if (frame->hw_frames_ctx && is_hwaccel_pix_fmt(frame->format)) {
+ if (!(sw_frame = av_frame_alloc())) {
+ av_log(avctx, AV_LOG_ERROR, "Can not alloc frame\n");
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+ if ((ret = av_hwframe_transfer_data(sw_frame, frame, 0)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "Error transferring the data to system memory\n");
+ goto fail;
+ }
+ frame = sw_frame;
+ }
+ planes = (int)surface->pVtbl->GetPlanesCount(surface);
+ if (planes > amf_countof(dst_data)) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid number of planes %d in surface\n", planes);
+ ret = AVERROR(EINVAL);
+ goto fail;
+ }
+
+ for (i = 0; i < planes; i++) {
+ plane = surface->pVtbl->GetPlaneAt(surface, i);
+ dst_data[i] = plane->pVtbl->GetNative(plane);
+ dst_linesize[i] = plane->pVtbl->GetHPitch(plane);
+ }
+ av_image_copy(dst_data, dst_linesize,
+ (const uint8_t**)frame->data, frame->linesize, frame->format,
+ avctx->width, avctx->height);
+
+fail:
+ if (sw_frame) {
+ av_frame_free(&sw_frame);
+ }
+ return ret;
+}
+
+static inline int timestamp_queue_enqueue(AVCodecContext *avctx, int64_t timestamp)
+{
+ AmfContext *ctx = avctx->priv_data;
+ if (av_fifo_space(ctx->timestamp_list) < sizeof(timestamp)) {
+ int size = av_fifo_size(ctx->timestamp_list);
+ if (INT_MAX / 2 - size < sizeof(timestamp))
+ return AVERROR(EINVAL);
+ av_fifo_realloc2(ctx->timestamp_list, (size + sizeof(timestamp)) * 2);
+ }
+ av_fifo_generic_write(ctx->timestamp_list, &timestamp, sizeof(timestamp), NULL);
+ ctx->timestamp_last = timestamp;
+ return 0;
+}
+
+static int amf_copy_buffer(AVCodecContext *avctx, AVPacket *pkt, AMFBuffer *buffer)
+{
+ AmfContext *ctx = avctx->priv_data;
+ int ret;
+ AMFVariantStruct var = {0};
+ int64_t timestamp = AV_NOPTS_VALUE;
+ int64_t size = buffer->pVtbl->GetSize(buffer);
+
+ //if ((ret = ff_alloc_packet2(avctx, pkt, size, 0)) < 0) {
+ if (ret = ff_alloc_packet(pkt, size)) {
+ return ret;
+ }
+ memcpy(pkt->data, buffer->pVtbl->GetNative(buffer), size);
+
+ switch (avctx->codec->id) {
+ case AV_CODEC_ID_H264:
+ buffer->pVtbl->GetProperty(buffer, AMF_VIDEO_ENCODER_OUTPUT_DATA_TYPE, &var);
+ if(var.int64Value == AMF_VIDEO_ENCODER_OUTPUT_DATA_TYPE_IDR) {
+ pkt->flags = AV_PKT_FLAG_KEY;
+ }
+ break;
+ case AV_CODEC_ID_HEVC:
+ buffer->pVtbl->GetProperty(buffer, AMF_VIDEO_ENCODER_HEVC_OUTPUT_DATA_TYPE, &var);
+ if (var.int64Value == AMF_VIDEO_ENCODER_HEVC_OUTPUT_DATA_TYPE_IDR) {
+ pkt->flags = AV_PKT_FLAG_KEY;
+ }
+ break;
+ default:
+ break;
+ }
+
+ buffer->pVtbl->GetProperty(buffer, PTS_PROP, &var);
+
+ pkt->pts = var.int64Value; // original pts
+
+
+ AMF_RETURN_IF_FALSE(ctx, av_fifo_size(ctx->timestamp_list) > 0, AVERROR_UNKNOWN, "timestamp_list is empty\n");
+
+ av_fifo_generic_read(ctx->timestamp_list, &timestamp, sizeof(timestamp), NULL);
+
+ // calc dts shift if max_b_frames > 0
+ if (avctx->max_b_frames > 0 && ctx->dts_delay == 0) {
+ AMF_RETURN_IF_FALSE(ctx, av_fifo_size(ctx->timestamp_list) > 0, AVERROR_UNKNOWN,
+ "timestamp_list is empty while max_b_frames = %d\n", avctx->max_b_frames);
+
+ if (timestamp < 0 || ctx->timestamp_last < AV_NOPTS_VALUE) {
+ return AVERROR(ERANGE);
+ }
+ ctx->dts_delay = ctx->timestamp_last - timestamp;
+ }
+ pkt->dts = timestamp - ctx->dts_delay;
+ return 0;
+}
+
+// amfenc API implementation
+int ff_amf_encode_init(AVCodecContext *avctx)
+{
+ AmfContext *ctx = avctx->priv_data;
+ int ret;
+
+ ctx->factory = NULL;
+ ctx->debug = NULL;
+ ctx->trace = NULL;
+ ctx->context = NULL;
+ ctx->encoder = NULL;
+ ctx->library = NULL;
+ ctx->version = 0;
+ ctx->eof = 0;
+ ctx->format = 0;
+ ctx->tracer.vtbl = NULL;
+ ctx->tracer.avctx = NULL;
+
+ if ((ret = amf_load_library(avctx)) == 0) {
+ if ((ret = amf_init_context(avctx)) == 0) {
+ if ((ret = amf_init_encoder(avctx)) == 0) {
+ return 0;
+ }
+ }
+ }
+ ff_amf_encode_close(avctx);
+ return ret;
+}
+
+
+int ff_amf_send_frame(AVCodecContext *avctx, const AVFrame *frame)
+{
+ AMF_RESULT res = AMF_OK;
+ AmfContext *ctx = avctx->priv_data;
+ AMFSurface *surface = NULL;
+ int ret;
+
+ if (!ctx->encoder)
+ return AVERROR(EINVAL);
+
+ if (!frame) { // submit drain
+ if (!ctx->eof) { // submit drain one time only
+ if (ctx->delayed_surface != NULL) {
+ ctx->delayed_drain = 1; // input queue is full: resubmit Drain() in ff_amf_receive_packet
+ } else if(!ctx->delayed_drain) {
+ res = ctx->encoder->pVtbl->Drain(ctx->encoder);
+ if (res == AMF_INPUT_FULL) {
+ ctx->delayed_drain = 1; // input queue is full: resubmit Drain() in ff_amf_receive_packet
+ } else {
+ if (res == AMF_OK) {
+ ctx->eof = 1; // drain started
+ }
+ AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_UNKNOWN, "Drain() failed with error %d\n", res);
+ }
+ }
+ } else{
+ return AVERROR_EOF;
+ }
+ } else { // submit frame
+ if (ctx->delayed_surface != NULL) {
+ return AVERROR(EAGAIN); // should not happen when called from ffmpeg, other clients may resubmit
+ }
+ // prepare surface from frame
+ if (frame->hw_frames_ctx && ( // HW frame detected
+ // check if the same hw_frames_ctx as used in initialization
+ (ctx->hw_frames_ctx && frame->hw_frames_ctx->data == ctx->hw_frames_ctx->data) ||
+ // check if the same hw_device_ctx as used in initialization
+ (ctx->hw_device_ctx && ((AVHWFramesContext*)frame->hw_frames_ctx->data)->device_ctx ==
+ (AVHWDeviceContext*)ctx->hw_device_ctx->data)
+ )) {
+#if CONFIG_D3D11VA
+ static const GUID AMFTextureArrayIndexGUID = { 0x28115527, 0xe7c3, 0x4b66, { 0x99, 0xd3, 0x4f, 0x2a, 0xe6, 0xb4, 0x7f, 0xaf } };
+ ID3D11Texture2D *texture = (ID3D11Texture2D*)frame->data[0]; // actual texture
+ int index = (int)(size_t)frame->data[1]; // index is a slice in texture array is - set to tell AMF which slice to use
+ texture->lpVtbl->SetPrivateData(texture, &AMFTextureArrayIndexGUID, sizeof(index), &index);
+
+ res = ctx->context->pVtbl->CreateSurfaceFromDX11Native(ctx->context, texture, &surface, NULL); // wrap to AMF surface
+ AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR(ENOMEM), "CreateSurfaceFromDX11Native() failed with error %d\n", res);
+
+ // input HW surfaces can be vertically aligned by 16; tell AMF the real size
+ surface->pVtbl->SetCrop(surface, 0, 0, frame->width, frame->height);
+#endif
+ } else {
+ res = ctx->context->pVtbl->AllocSurface(ctx->context, AMF_MEMORY_HOST, ctx->format, avctx->width, avctx->height, &surface);
+ AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR(ENOMEM), "AllocSurface() failed with error %d\n", res);
+ amf_copy_surface(avctx, frame, surface);
+ }
+ surface->pVtbl->SetPts(surface, frame->pts);
+ AMF_ASSIGN_PROPERTY_INT64(res, surface, PTS_PROP, frame->pts);
+
+ switch (avctx->codec->id) {
+ case AV_CODEC_ID_H264:
+ AMF_ASSIGN_PROPERTY_INT64(res, surface, AMF_VIDEO_ENCODER_INSERT_AUD, !!ctx->aud);
+ break;
+ case AV_CODEC_ID_HEVC:
+ AMF_ASSIGN_PROPERTY_INT64(res, surface, AMF_VIDEO_ENCODER_HEVC_INSERT_AUD, !!ctx->aud);
+ break;
+ default:
+ break;
+ }
+
+
+ // submit surface
+ res = ctx->encoder->pVtbl->SubmitInput(ctx->encoder, (AMFData*)surface);
+ if (res == AMF_INPUT_FULL) { // handle full queue
+ //store surface for later submission
+ ctx->delayed_surface = surface;
+ if (surface->pVtbl->GetMemoryType(surface) == AMF_MEMORY_DX11) {
+ av_frame_ref(ctx->delayed_frame, frame);
+ }
+ } else {
+ surface->pVtbl->Release(surface);
+ AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_UNKNOWN, "SubmitInput() failed with error %d\n", res);
+
+ if ((ret = timestamp_queue_enqueue(avctx, frame->pts)) < 0) {
+ return ret;
+ }
+
+ }
+ }
+ return 0;
+}
+int ff_amf_receive_packet(AVCodecContext *avctx, AVPacket *avpkt)
+{
+ int ret;
+ AMF_RESULT res;
+ AMF_RESULT res_query;
+ AmfContext *ctx = avctx->priv_data;
+ AMFData *data = NULL;
+ int block_and_wait;
+
+ if (!ctx->encoder)
+ return AVERROR(EINVAL);
+
+ do {
+ block_and_wait = 0;
+ // poll data
+ res_query = ctx->encoder->pVtbl->QueryOutput(ctx->encoder, &data);
+ if (data) {
+ // copy data to packet
+ AMFBuffer* buffer;
+ AMFGuid guid = IID_AMFBuffer();
+ data->pVtbl->QueryInterface(data, &guid, (void**)&buffer); // query for buffer interface
+ ret = amf_copy_buffer(avctx, avpkt, buffer);
+
+ buffer->pVtbl->Release(buffer);
+ data->pVtbl->Release(data);
+
+ AMF_RETURN_IF_FALSE(ctx, ret >= 0, ret, "amf_copy_buffer() failed with error %d\n", ret);
+
+ if (ctx->delayed_surface != NULL) { // try to resubmit frame
+ res = ctx->encoder->pVtbl->SubmitInput(ctx->encoder, (AMFData*)ctx->delayed_surface);
+ if (res != AMF_INPUT_FULL) {
+ int64_t pts = ctx->delayed_surface->pVtbl->GetPts(ctx->delayed_surface);
+ ctx->delayed_surface->pVtbl->Release(ctx->delayed_surface);
+ ctx->delayed_surface = NULL;
+ av_frame_unref(ctx->delayed_frame);
+ AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_UNKNOWN, "Repeated SubmitInput() failed with error %d\n", res);
+
+ if ((ret = timestamp_queue_enqueue(avctx, pts)) < 0) {
+ return ret;
+ }
+ } else {
+ av_log(avctx, AV_LOG_WARNING, "Data acquired but delayed frame submission got AMF_INPUT_FULL- should not happen\n");
+ }
+ } else if (ctx->delayed_drain) { // try to resubmit drain
+ res = ctx->encoder->pVtbl->Drain(ctx->encoder);
+ if (res != AMF_INPUT_FULL) {
+ ctx->delayed_drain = 0;
+ ctx->eof = 1; // drain started
+ AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_UNKNOWN, "Repeated Drain() failed with error %d\n", res);
+ } else {
+ av_log(avctx, AV_LOG_WARNING, "Data acquired but delayed drain submission got AMF_INPUT_FULL- should not happen\n");
+ }
+ }
+ } else if (ctx->delayed_surface != NULL || ctx->delayed_drain || (ctx->eof && res_query != AMF_EOF)) {
+ block_and_wait = 1;
+ av_usleep(1000); // wait and poll again
+ }
+ } while (block_and_wait);
+
+ if (res_query == AMF_EOF) {
+ ret = AVERROR_EOF;
+ } else if (data == NULL) {
+ ret = AVERROR(EAGAIN);
+ } else {
+ ret = 0;
+ }
+ return ret;
+}