[FFmpeg-devel] [PATCH] Add HW H.264 and HEVC encoding for AMD GPUs based on AMF SDK
wm4
nfxjfg at googlemail.com
Wed Nov 29 16:45:11 EET 2017
On Tue, 28 Nov 2017 00:43:25 +0000
Mark Thompson <sw at jkqxz.net> wrote:
> ...
>
> Ok; done, plus some trivial testing to make sure it works. If you're happy with this and noone else says anything then I'll push it tomorrow.
>
> Relatedly: your name on patches does not match your full name - I've preserved the patch one here, but was that intended?
>
> Thanks,
>
> - Mark
>
>
> Changelog | 1 +
> configure | 10 +
> libavcodec/Makefile | 4 +
> libavcodec/allcodecs.c | 2 +
> libavcodec/amfenc.c | 604 +++++++++++++++++++++++++++++++++++++++++++++++
> libavcodec/amfenc.h | 148 ++++++++++++
> libavcodec/amfenc_h264.c | 395 +++++++++++++++++++++++++++++++
> libavcodec/amfenc_hevc.c | 326 +++++++++++++++++++++++++
> 8 files changed, 1490 insertions(+)
> create mode 100644 libavcodec/amfenc.c
> create mode 100644 libavcodec/amfenc.h
> create mode 100644 libavcodec/amfenc_h264.c
> create mode 100644 libavcodec/amfenc_hevc.c
>
> diff --git a/Changelog b/Changelog
> index afead72f14..7a913bf7a7 100644
> --- a/Changelog
> +++ b/Changelog
> @@ -21,6 +21,7 @@ version <next>:
> - video mix filter
> - video normalize filter
> - audio lv2 wrapper filter
> +- AMD AMF H.264 and HEVC encoders
>
>
> version 3.4:
> diff --git a/configure b/configure
> index 6748ef8bc9..3036b69cab 100755
> --- a/configure
> +++ b/configure
> @@ -304,6 +304,7 @@ External library support:
> --disable-zlib disable zlib [autodetect]
>
> The following libraries provide various hardware acceleration features:
> + --disable-amf disable AMF video encoding code [autodetect]
> --disable-audiotoolbox disable Apple AudioToolbox code [autodetect]
> --disable-cuda disable dynamically linked Nvidia CUDA code [autodetect]
> --enable-cuda-sdk enable CUDA features that require the CUDA SDK [no]
> @@ -1639,6 +1640,7 @@ EXTERNAL_LIBRARY_LIST="
> "
>
> HWACCEL_AUTODETECT_LIBRARY_LIST="
> + amf
> audiotoolbox
> crystalhd
> cuda
> @@ -2782,12 +2784,14 @@ scale_npp_filter_deps="cuda libnpp"
> scale_cuda_filter_deps="cuda_sdk"
> thumbnail_cuda_filter_deps="cuda_sdk"
>
> +amf_deps_any="libdl LoadLibrary"
> nvenc_deps="cuda"
> nvenc_deps_any="libdl LoadLibrary"
> nvenc_encoder_deps="nvenc"
>
> h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
> h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
> +h264_amf_encoder_deps="amf"
> h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
> h264_cuvid_decoder_deps="cuvid"
> h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
> @@ -2804,6 +2808,7 @@ h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
> h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
> h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
> h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
> +hevc_amf_encoder_deps="amf"
> hevc_cuvid_decoder_deps="cuvid"
> hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
> hevc_mediacodec_decoder_deps="mediacodec"
> @@ -6194,6 +6199,11 @@ void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } };
> int main(void) { return 0; }
> EOF
>
> +enabled amf &&
> + check_cpp_condition "AMF/core/Version.h" \
> + "(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001" ||
> + disable amf
> +
> # Funny iconv installations are not unusual, so check it after all flags have been set
> if enabled libc_iconv; then
> check_func_headers iconv.h iconv
> diff --git a/libavcodec/Makefile b/libavcodec/Makefile
> index a6203d424b..ab7893f560 100644
> --- a/libavcodec/Makefile
> +++ b/libavcodec/Makefile
> @@ -55,6 +55,7 @@ OBJS = ac3_parser.o \
> OBJS-$(CONFIG_AANDCTTABLES) += aandcttab.o
> OBJS-$(CONFIG_AC3DSP) += ac3dsp.o ac3.o ac3tab.o
> OBJS-$(CONFIG_ADTS_HEADER) += adts_header.o mpeg4audio.o
> +OBJS-$(CONFIG_AMF) += amfenc.o
> OBJS-$(CONFIG_AUDIO_FRAME_QUEUE) += audio_frame_queue.o
> OBJS-$(CONFIG_AUDIODSP) += audiodsp.o
> OBJS-$(CONFIG_BLOCKDSP) += blockdsp.o
> @@ -337,6 +338,7 @@ OBJS-$(CONFIG_H264_DECODER) += h264dec.o h264_cabac.o h264_cavlc.o \
> h264_mb.o h264_picture.o \
> h264_refs.o h264_sei.o \
> h264_slice.o h264data.o
> +OBJS-$(CONFIG_H264_AMF_ENCODER) += amfenc_h264.o
> OBJS-$(CONFIG_H264_CUVID_DECODER) += cuviddec.o
> OBJS-$(CONFIG_H264_MEDIACODEC_DECODER) += mediacodecdec.o
> OBJS-$(CONFIG_H264_MMAL_DECODER) += mmaldec.o
> @@ -356,6 +358,7 @@ OBJS-$(CONFIG_HAP_ENCODER) += hapenc.o hap.o
> OBJS-$(CONFIG_HEVC_DECODER) += hevcdec.o hevc_mvs.o \
> hevc_cabac.o hevc_refs.o hevcpred.o \
> hevcdsp.o hevc_filter.o hevc_data.o
> +OBJS-$(CONFIG_HEVC_AMF_ENCODER) += amfenc_hevc.o
> OBJS-$(CONFIG_HEVC_CUVID_DECODER) += cuviddec.o
> OBJS-$(CONFIG_HEVC_MEDIACODEC_DECODER) += mediacodecdec.o
> OBJS-$(CONFIG_HEVC_NVENC_ENCODER) += nvenc_hevc.o
> @@ -1065,6 +1068,7 @@ SKIPHEADERS += %_tablegen.h \
> aacenc_quantization_misc.h \
> $(ARCH)/vp56_arith.h \
>
> +SKIPHEADERS-$(CONFIG_AMF) += amfenc.h
> SKIPHEADERS-$(CONFIG_D3D11VA) += d3d11va.h dxva2_internal.h
> SKIPHEADERS-$(CONFIG_DXVA2) += dxva2.h dxva2_internal.h
> SKIPHEADERS-$(CONFIG_JNI) += ffjni.h
> diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
> index 4a21687b20..ed1e7ab06e 100644
> --- a/libavcodec/allcodecs.c
> +++ b/libavcodec/allcodecs.c
> @@ -576,6 +576,7 @@ static void register_all(void)
> * above is available */
> REGISTER_ENCODER(H263_V4L2M2M, h263_v4l2m2m);
> REGISTER_ENCDEC (LIBOPENH264, libopenh264);
> + REGISTER_ENCODER(H264_AMF, h264_amf);
> REGISTER_DECODER(H264_CUVID, h264_cuvid);
> REGISTER_ENCODER(H264_NVENC, h264_nvenc);
> REGISTER_ENCODER(H264_OMX, h264_omx);
> @@ -588,6 +589,7 @@ static void register_all(void)
> REGISTER_ENCODER(NVENC_H264, nvenc_h264);
> REGISTER_ENCODER(NVENC_HEVC, nvenc_hevc);
> #endif
> + REGISTER_ENCODER(HEVC_AMF, hevc_amf);
> REGISTER_DECODER(HEVC_CUVID, hevc_cuvid);
> REGISTER_DECODER(HEVC_MEDIACODEC, hevc_mediacodec);
> REGISTER_ENCODER(HEVC_NVENC, hevc_nvenc);
> diff --git a/libavcodec/amfenc.c b/libavcodec/amfenc.c
> new file mode 100644
> index 0000000000..49d64e6946
> --- /dev/null
> +++ b/libavcodec/amfenc.c
> @@ -0,0 +1,604 @@
> +/*
> + * 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 "libavutil/avassert.h"
> +#include "libavutil/imgutils.h"
> +#include "libavutil/hwcontext.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"
> +#include "internal.h"
> +
> +#if CONFIG_D3D11VA
> +#include <d3d11.h>
> +#endif
> +
> +#ifdef _WIN32
> +#include "compat/w32dlfcn.h"
> +#else
> +#include <dlfcn.h>
> +#endif
> +
> +#define FFMPEG_AMF_WRITER_ID L"ffmpeg_amf"
> +
> +#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 },
Wut, really? It's not a typo? It looks tricky.
I assume AMF has D3D11 input, but then it'd still need to exclude P010.
I don't think this is ever done, and sending a P010 frame probably
crashes the thing?
> +};
> +
> +
> +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);
To be honest, I think these macros just make everything less readable
instead of more readable, but whatever.
> +
> + 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;
> +
> + // confugure 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, FFMPEG_AMF_WRITER_ID,(AMFTraceWriter*)&ctx->tracer, 1);
> + ctx->trace->pVtbl->SetWriterLevel(ctx->trace, FFMPEG_AMF_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");
> + }
> + }
> + }
> + }
It doesn't look like there's a need to duplicate the code that comes
once you have a device.
> +#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, FFMPEG_AMF_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_freep(&ctx->timestamp_list);
> +
> + 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)) {
The second check is redundant. Otherwise I'd claim API violation and
user error.
> + 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)) {
> + if (av_fifo_grow(ctx->timestamp_list, sizeof(timestamp)) < 0) {
> + return AVERROR(ENOMEM);
> + }
> + }
> + av_fifo_generic_write(ctx->timestamp_list, ×tamp, sizeof(timestamp), NULL);
> + 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) {
> + 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, ×tamp, sizeof(timestamp), NULL);
> +
> + // calc dts shift if max_b_frames > 0
> + if (avctx->max_b_frames > 0 && ctx->dts_delay == 0) {
> + int64_t timestamp_last = AV_NOPTS_VALUE;
> + 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);
> + av_fifo_generic_peek_at(
> + ctx->timestamp_list,
> + ×tamp_last,
> + (av_fifo_size(ctx->timestamp_list) / sizeof(timestamp) - 1) * sizeof(timestamp_last),
> + sizeof(timestamp_last),
> + NULL);
> + if (timestamp < 0 || timestamp_last < AV_NOPTS_VALUE) {
> + return AVERROR(ERANGE);
> + }
> + ctx->dts_delay = timestamp_last - timestamp;
> + }
> + pkt->dts = timestamp - ctx->dts_delay;
> + return 0;
> +}
> +
> +// amfenc API implmentation
> +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)
Is that really necessary? Are users supposed to be allow to send frames
with non-matching device contexts?
> + )) {
> +#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;
> +}
> diff --git a/libavcodec/amfenc.h b/libavcodec/amfenc.h
> new file mode 100644
> index 0000000000..8b59b506c5
> --- /dev/null
> +++ b/libavcodec/amfenc.h
> @@ -0,0 +1,148 @@
> +/*
> +* 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 AVCODEC_AMFENC_H
> +#define AVCODEC_AMFENC_H
> +
> +#include <AMF/core/Factory.h>
> +
> +#include <AMF/components/VideoEncoderVCE.h>
> +#include <AMF/components/VideoEncoderHEVC.h>
> +
> +#include "libavutil/fifo.h"
> +
> +#include "config.h"
> +#include "avcodec.h"
> +
> +
> +/**
> +* AMF trace writer callback class
> +* Used to capture all AMF logging
> +*/
> +
> +typedef struct AmfTraceWriter {
> + AMFTraceWriterVtbl *vtbl;
> + AVCodecContext *avctx;
> +} AmfTraceWriter;
> +
> +/**
> +* AMF encoder context
> +*/
> +
> +typedef struct AmfContext {
> + AVClass *avclass;
> + // access to AMF runtime
> + amf_handle library; ///< handle to DLL library
> + AMFFactory *factory; ///< pointer to AMF factory
> + AMFDebug *debug; ///< pointer to AMF debug interface
> + AMFTrace *trace; ///< pointer to AMF trace interface
> +
> + amf_uint64 version; ///< version of AMF runtime
> + AmfTraceWriter tracer; ///< AMF writer registered with AMF
> + AMFContext *context; ///< AMF context
> + //encoder
> + AMFComponent *encoder; ///< AMF encoder object
> + amf_bool eof; ///< flag indicating EOF happened
> + AMF_SURFACE_FORMAT format; ///< AMF surface format
> +
> + AVBufferRef *hw_device_ctx; ///< pointer to HW accelerator (decoder)
> + AVBufferRef *hw_frames_ctx; ///< pointer to HW accelerator (frame allocator)
> +
> + // helpers to handle async calls
> + int delayed_drain;
> + AMFSurface *delayed_surface;
> + AVFrame *delayed_frame;
> +
> + // shift dts back by max_b_frames in timing
> + AVFifoBuffer *timestamp_list;
> + int64_t dts_delay;
> +
> + // common encoder option options
> +
> + int log_to_dbg;
> +
> + // Static options, have to be set before Init() call
> + int usage;
> + int profile;
> + int level;
> + int preanalysis;
> + int quality;
> + int b_frame_delta_qp;
> + int ref_b_frame_delta_qp;
> +
> + // Dynamic options, can be set after Init() call
> +
> + int rate_control_mode;
> + int enforce_hrd;
> + int filler_data;
> + int enable_vbaq;
> + int skip_frame;
> + int qp_i;
> + int qp_p;
> + int qp_b;
> + int max_au_size;
> + int header_spacing;
> + int b_frame_ref;
> + int intra_refresh_mb;
> + int coding_mode;
> + int me_half_pel;
> + int me_quarter_pel;
> + int aud;
> +
> + // HEVC - specific options
> +
> + int gops_per_idr;
> + int header_insertion_mode;
> + int min_qp_i;
> + int max_qp_i;
> + int min_qp_p;
> + int max_qp_p;
> + int tier;
> +} AmfContext;
> +
> +/**
> +* Common encoder initization function
> +*/
> +int ff_amf_encode_init(AVCodecContext *avctx);
> +/**
> +* Common encoder termination function
> +*/
> +int ff_amf_encode_close(AVCodecContext *avctx);
> +
> +/**
> +* Ecoding one frame - common function for all AMF encoders
> +*/
> +
> +int ff_amf_send_frame(AVCodecContext *avctx, const AVFrame *frame);
> +int ff_amf_receive_packet(AVCodecContext *avctx, AVPacket *avpkt);
> +
> +/**
> +* Supported formats
> +*/
> +extern const enum AVPixelFormat ff_amf_pix_fmts[];
> +
> +/**
> +* Error handling helper
> +*/
> +#define AMF_RETURN_IF_FALSE(avctx, exp, ret_value, /*message,*/ ...) \
> + if (!(exp)) { \
> + av_log(avctx, AV_LOG_ERROR, __VA_ARGS__); \
> + return ret_value; \
> + }
> +
> +#endif //AVCODEC_AMFENC_H
> diff --git a/libavcodec/amfenc_h264.c b/libavcodec/amfenc_h264.c
> new file mode 100644
> index 0000000000..3cacf320e3
> --- /dev/null
> +++ b/libavcodec/amfenc_h264.c
> @@ -0,0 +1,395 @@
> +/*
> + * 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 "libavutil/internal.h"
> +#include "libavutil/opt.h"
> +#include "amfenc.h"
> +#include "internal.h"
> +
> +#define OFFSET(x) offsetof(AmfContext, x)
> +#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
> +
> +static const AVOption options[] = {
> + // Static
> + /// Usage
> + { "usage", "Encoder Usage", OFFSET(usage), AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_USAGE_TRANSCONDING }, AMF_VIDEO_ENCODER_USAGE_TRANSCONDING, AMF_VIDEO_ENCODER_USAGE_WEBCAM, VE, "usage" },
> + { "transcoding", "Generic Transcoding", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_USAGE_TRANSCONDING }, 0, 0, VE, "usage" },
> + { "ultralowlatency","", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_USAGE_ULTRA_LOW_LATENCY }, 0, 0, VE, "usage" },
> + { "lowlatency", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_USAGE_LOW_LATENCY }, 0, 0, VE, "usage" },
> + { "webcam", "Webcam", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_USAGE_WEBCAM }, 0, 0, VE, "usage" },
> +
> + /// Profile,
> + { "profile", "Profile", OFFSET(profile),AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_PROFILE_MAIN }, AMF_VIDEO_ENCODER_PROFILE_BASELINE, AMF_VIDEO_ENCODER_PROFILE_CONSTRAINED_HIGH, VE, "profile" },
> + { "main", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_PROFILE_MAIN }, 0, 0, VE, "profile" },
> + { "high", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_PROFILE_HIGH }, 0, 0, VE, "profile" },
> + { "constrained_baseline", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_PROFILE_CONSTRAINED_BASELINE }, 0, 0, VE, "profile" },
> + { "constrained_high", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_PROFILE_CONSTRAINED_HIGH }, 0, 0, VE, "profile" },
> +
> + /// Profile Level
> + { "level", "Profile Level", OFFSET(level), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 62, VE, "level" },
> + { "auto", "", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, VE, "level" },
> + { "1.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 10 }, 0, 0, VE, "level" },
> + { "1.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 11 }, 0, 0, VE, "level" },
> + { "1.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 12 }, 0, 0, VE, "level" },
> + { "1.3", "", 0, AV_OPT_TYPE_CONST, { .i64 = 13 }, 0, 0, VE, "level" },
> + { "2.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 20 }, 0, 0, VE, "level" },
> + { "2.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 21 }, 0, 0, VE, "level" },
> + { "2.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 22 }, 0, 0, VE, "level" },
> + { "3.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 30 }, 0, 0, VE, "level" },
> + { "3.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 31 }, 0, 0, VE, "level" },
> + { "3.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 32 }, 0, 0, VE, "level" },
> + { "4.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 40 }, 0, 0, VE, "level" },
> + { "4.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 41 }, 0, 0, VE, "level" },
> + { "4.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 42 }, 0, 0, VE, "level" },
> + { "5.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 50 }, 0, 0, VE, "level" },
> + { "5.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 51 }, 0, 0, VE, "level" },
> + { "5.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 52 }, 0, 0, VE, "level" },
> + { "6.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = 60 }, 0, 0, VE, "level" },
> + { "6.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = 61 }, 0, 0, VE, "level" },
> + { "6.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = 62 }, 0, 0, VE, "level" },
> +
> +
> + /// Quality Preset
> + { "quality", "Quality Preference", OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_QUALITY_PRESET_SPEED }, AMF_VIDEO_ENCODER_QUALITY_PRESET_BALANCED, AMF_VIDEO_ENCODER_QUALITY_PRESET_QUALITY, VE, "quality" },
> + { "speed", "Prefer Speed", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_QUALITY_PRESET_SPEED }, 0, 0, VE, "quality" },
> + { "balanced", "Balanced", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_QUALITY_PRESET_BALANCED }, 0, 0, VE, "quality" },
> + { "quality", "Prefer Quality", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_QUALITY_PRESET_QUALITY }, 0, 0, VE, "quality" },
> +
> + // Dynamic
> + /// Rate Control Method
> + { "rc", "Rate Control Method", OFFSET(rate_control_mode), AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_UNKNOWN }, AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_UNKNOWN, AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_LATENCY_CONSTRAINED_VBR, VE, "rc" },
> + { "cqp", "Constant Quantization Parameter", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CONSTANT_QP }, 0, 0, VE, "rc" },
> + { "cbr", "Constant Bitrate", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CBR }, 0, 0, VE, "rc" },
> + { "vbr_peak", "Peak Contrained Variable Bitrate", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_PEAK_CONSTRAINED_VBR }, 0, 0, VE, "rc" },
> + { "vbr_latency", "Latency Constrained Variable Bitrate", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_LATENCY_CONSTRAINED_VBR }, 0, 0, VE, "rc" },
> +
> + /// Enforce HRD, Filler Data, VBAQ, Frame Skipping
> + { "enforce_hrd", "Enforce HRD", OFFSET(enforce_hrd), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
> + { "filler_data", "Filler Data Enable", OFFSET(filler_data), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
> + { "vbaq", "Enable VBAQ", OFFSET(enable_vbaq), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
> + { "frame_skipping", "Rate Control Based Frame Skip", OFFSET(skip_frame), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
> +
> + /// QP Values
> + { "qp_i", "Quantization Parameter for I-Frame", OFFSET(qp_i), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
> + { "qp_p", "Quantization Parameter for P-Frame", OFFSET(qp_p), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
> + { "qp_b", "Quantization Parameter for B-Frame", OFFSET(qp_b), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
> +
> + /// Pre-Pass, Pre-Analysis, Two-Pass
> + { "preanalysis", "Pre-Analysis Mode", OFFSET(preanalysis), AV_OPT_TYPE_BOOL,{ .i64 = 0 }, 0, 1, VE, NULL },
> +
> + /// Maximum Access Unit Size
> + { "max_au_size", "Maximum Access Unit Size for rate control (in bits)", OFFSET(max_au_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
> +
> + /// Header Insertion Spacing
> + { "header_spacing", "Header Insertion Spacing", OFFSET(header_spacing), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1000, VE },
> +
> + /// B-Frames
> + // BPicturesPattern=bf
> + { "bf_delta_qp", "B-Picture Delta QP", OFFSET(b_frame_delta_qp), AV_OPT_TYPE_INT, { .i64 = 4 }, -10, 10, VE },
> + { "bf_ref", "Enable Reference to B-Frames", OFFSET(b_frame_ref), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
> + { "bf_ref_delta_qp","Reference B-Picture Delta QP", OFFSET(ref_b_frame_delta_qp), AV_OPT_TYPE_INT, { .i64 = 4 }, -10, 10, VE },
> +
> + /// Intra-Refresh
> + { "intra_refresh_mb","Intra Refresh MBs Number Per Slot in Macroblocks", OFFSET(intra_refresh_mb), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
> +
> + /// coder
> + { "coder", "Coding Type", OFFSET(coding_mode), AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_UNDEFINED }, AMF_VIDEO_ENCODER_UNDEFINED, AMF_VIDEO_ENCODER_CALV, VE, "coder" },
> + { "auto", "Automatic", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_UNDEFINED }, 0, 0, VE, "coder" },
> + { "cavlc", "Context Adaptive Variable-Length Coding", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_CALV }, 0, 0, VE, "coder" },
> + { "cabac", "Context Adaptive Binary Arithmetic Coding", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_CABAC }, 0, 0, VE, "coder" },
> +
> + { "me_half_pel", "Enable ME Half Pixel", OFFSET(me_half_pel), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
> + { "me_quarter_pel", "Enable ME Quarter Pixel", OFFSET(me_quarter_pel),AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE },
> +
> + { "aud", "Inserts AU Delimiter NAL unit", OFFSET(aud) ,AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
> +
> + { "log_to_dbg", "Enable AMF logging to debug output", OFFSET(log_to_dbg) , AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
> +
> + { NULL }
> +};
> +
> +static av_cold int amf_encode_init_h264(AVCodecContext *avctx)
> +{
> + int ret = 0;
> + AMF_RESULT res = AMF_OK;
> + AmfContext *ctx = avctx->priv_data;
> + AMFVariantStruct var = { 0 };
> + amf_int64 profile = 0;
> + amf_int64 profile_level = 0;
> + AMFBuffer *buffer;
> + AMFGuid guid;
> + AMFRate framerate;
> + AMFSize framesize = AMFConstructSize(avctx->width, avctx->height);
> + int deblocking_filter = (avctx->flags & AV_CODEC_FLAG_LOOP_FILTER) ? 1 : 0;
> +
> + if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
> + framerate = AMFConstructRate(avctx->framerate.num, avctx->framerate.den);
> + } else {
> + framerate = AMFConstructRate(avctx->time_base.den, avctx->time_base.num * avctx->ticks_per_frame);
> + }
> +
> + if ((ret = ff_amf_encode_init(avctx)) != 0)
> + return ret;
> +
> + // Static parameters
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_USAGE, ctx->usage);
> +
> + AMF_ASSIGN_PROPERTY_SIZE(res, ctx->encoder, AMF_VIDEO_ENCODER_FRAMESIZE, framesize);
> +
> + AMF_ASSIGN_PROPERTY_RATE(res, ctx->encoder, AMF_VIDEO_ENCODER_FRAMERATE, framerate);
> +
> + switch (avctx->profile) {
> + case FF_PROFILE_H264_BASELINE:
> + profile = AMF_VIDEO_ENCODER_PROFILE_BASELINE;
> + break;
> + case FF_PROFILE_H264_MAIN:
> + profile = AMF_VIDEO_ENCODER_PROFILE_MAIN;
> + break;
> + case FF_PROFILE_H264_HIGH:
> + profile = AMF_VIDEO_ENCODER_PROFILE_HIGH;
> + break;
> + case FF_PROFILE_H264_CONSTRAINED_BASELINE:
> + profile = AMF_VIDEO_ENCODER_PROFILE_CONSTRAINED_BASELINE;
> + break;
> + case (FF_PROFILE_H264_HIGH | FF_PROFILE_H264_CONSTRAINED):
> + profile = AMF_VIDEO_ENCODER_PROFILE_CONSTRAINED_HIGH;
> + break;
> + }
> + if (profile == 0) {
> + profile = ctx->profile;
> + }
> +
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_PROFILE, profile);
> +
> + profile_level = avctx->level;
> + if (profile_level == FF_LEVEL_UNKNOWN) {
> + profile_level = ctx->level;
> + }
> + if (profile_level != 0) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_PROFILE_LEVEL, profile_level);
> + }
> +
> + // Maximum Reference Frames
> + if (avctx->refs != -1) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MAX_NUM_REFRAMES, avctx->refs);
> + }
> + if (avctx->sample_aspect_ratio.den && avctx->sample_aspect_ratio.num) {
> + AMFRatio ratio = AMFConstructRatio(avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
> + AMF_ASSIGN_PROPERTY_RATIO(res, ctx->encoder, AMF_VIDEO_ENCODER_ASPECT_RATIO, ratio);
> + }
> +
> + /// Color Range (Partial/TV/MPEG or Full/PC/JPEG)
> + if (avctx->color_range == AVCOL_RANGE_JPEG) {
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_FULL_RANGE_COLOR, 1);
> + }
> +
> + // autodetect rate control method
> + if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_UNKNOWN) {
> + if (ctx->qp_i != -1 || ctx->qp_p != -1 || ctx->qp_b != -1) {
> + ctx->rate_control_mode = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CONSTANT_QP;
> + av_log(ctx, AV_LOG_DEBUG, "Rate control turned to CQP\n");
> + } else if (avctx->rc_max_rate > 0 ) {
> + ctx->rate_control_mode = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_PEAK_CONSTRAINED_VBR;
> + av_log(ctx, AV_LOG_DEBUG, "Rate control turned to Peak VBR\n");
> + } else {
> + ctx->rate_control_mode = AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CBR;
> + av_log(ctx, AV_LOG_DEBUG, "Rate control turned to CBR\n");
> + }
> + }
> +
> +
> + if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CONSTANT_QP) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_RATE_CONTROL_PREANALYSIS_ENABLE, AMF_VIDEO_ENCODER_PREENCODE_DISABLED);
> + if (ctx->preanalysis)
> + av_log(ctx, AV_LOG_WARNING, "Pre-Analysis is not supported by cqp Rate Control Method, automatically disabled\n");
> + } else {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_RATE_CONTROL_PREANALYSIS_ENABLE, ctx->preanalysis);
> + }
> +
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_QUALITY_PRESET, ctx->quality);
> +
> + // Initialize Encoder
> + res = ctx->encoder->pVtbl->Init(ctx->encoder, ctx->format, avctx->width, avctx->height);
> + AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "encoder->Init() failed with error %d\n", res);
> +
> + // Dynamic parmaters
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD, ctx->rate_control_mode);
> +
> + /// VBV Buffer
> + if (avctx->rc_buffer_size != 0) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_VBV_BUFFER_SIZE, avctx->rc_buffer_size);
> + if (avctx->rc_initial_buffer_occupancy != 0) {
> + int amf_buffer_fullness = avctx->rc_initial_buffer_occupancy * 64 / avctx->rc_buffer_size;
> + if (amf_buffer_fullness > 64)
> + amf_buffer_fullness = 64;
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_INITIAL_VBV_BUFFER_FULLNESS, amf_buffer_fullness);
> + }
> + }
> + /// Maximum Access Unit Size
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MAX_AU_SIZE, ctx->max_au_size);
> +
> + if (ctx->max_au_size)
> + ctx->enforce_hrd = 1;
> +
> + // QP Minimum / Maximum
> + if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CONSTANT_QP) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MIN_QP, 0);
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MAX_QP, 51);
> + } else {
> + if (avctx->qmin != -1) {
> + int qval = avctx->qmin > 51 ? 51 : avctx->qmin;
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MIN_QP, qval);
> + }
> + if (avctx->qmax != -1) {
> + int qval = avctx->qmax > 51 ? 51 : avctx->qmax;
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_MAX_QP, qval);
> + }
> + }
> + // QP Values
> + if (ctx->qp_i != -1)
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_QP_I, ctx->qp_i);
> + if (ctx->qp_p != -1)
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_QP_P, ctx->qp_p);
> + if (ctx->qp_b != -1)
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_QP_B, ctx->qp_b);
> +
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_TARGET_BITRATE, avctx->bit_rate);
> +
> + if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CBR) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_PEAK_BITRATE, avctx->bit_rate);
> + }
> + if (avctx->rc_max_rate) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_PEAK_BITRATE, avctx->rc_max_rate);
> + } else if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_PEAK_CONSTRAINED_VBR) {
> + av_log(ctx, AV_LOG_WARNING, "rate control mode is PEAK_CONSTRAINED_VBR but rc_max_rate is not set\n");
> + }
> + // Enforce HRD, Filler Data, VBAQ, Frame Skipping, Deblocking Filter
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_ENFORCE_HRD, !!ctx->enforce_hrd);
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_FILLER_DATA_ENABLE, !!ctx->filler_data);
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_RATE_CONTROL_SKIP_FRAME_ENABLE, !!ctx->skip_frame);
> + if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_RATE_CONTROL_METHOD_CONSTANT_QP) {
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_ENABLE_VBAQ, 0);
> + if (ctx->enable_vbaq)
> + av_log(ctx, AV_LOG_WARNING, "VBAQ is not supported by cqp Rate Control Method, automatically disabled\n");
> + } else {
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_ENABLE_VBAQ, !!ctx->enable_vbaq);
> + }
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_DE_BLOCKING_FILTER, !!deblocking_filter);
> +
> + // B-Frames
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_B_PIC_PATTERN, avctx->max_b_frames);
> + if (res != AMF_OK) {
> + res = ctx->encoder->pVtbl->GetProperty(ctx->encoder, AMF_VIDEO_ENCODER_B_PIC_PATTERN, &var);
> + av_log(ctx, AV_LOG_WARNING, "B-frames=%d is not supported by this GPU, switched to %d\n",
> + avctx->max_b_frames, (int)var.int64Value);
> + avctx->max_b_frames = (int)var.int64Value;
> + }
> + if (avctx->max_b_frames) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_B_PIC_DELTA_QP, ctx->b_frame_delta_qp);
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_B_REFERENCE_ENABLE, !!ctx->b_frame_ref);
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_REF_B_PIC_DELTA_QP, ctx->ref_b_frame_delta_qp);
> + }
> +
> + // Keyframe Interval
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_IDR_PERIOD, avctx->gop_size);
> +
> + // Header Insertion Spacing
> + if (ctx->header_spacing >= 0)
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEADER_INSERTION_SPACING, ctx->header_spacing);
> +
> + // Intra-Refresh, Slicing
> + if (ctx->intra_refresh_mb > 0)
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_INTRA_REFRESH_NUM_MBS_PER_SLOT, ctx->intra_refresh_mb);
> + if (avctx->slices > 1)
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_SLICES_PER_FRAME, avctx->slices);
> +
> + // Coding
> + if (ctx->coding_mode != 0)
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_CABAC_ENABLE, ctx->coding_mode);
> +
> + // Motion Estimation
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_MOTION_HALF_PIXEL, !!ctx->me_half_pel);
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_MOTION_QUARTERPIXEL, !!ctx->me_quarter_pel);
> +
> + // fill extradata
> + res = AMFVariantInit(&var);
> + AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "AMFVariantInit() failed with error %d\n", res);
> +
> + res = ctx->encoder->pVtbl->GetProperty(ctx->encoder, AMF_VIDEO_ENCODER_EXTRADATA, &var);
> + AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "GetProperty(AMF_VIDEO_ENCODER_EXTRADATA) failed with error %d\n", res);
> + AMF_RETURN_IF_FALSE(ctx, var.pInterface != NULL, AVERROR_BUG, "GetProperty(AMF_VIDEO_ENCODER_EXTRADATA) returned NULL\n");
> +
> + guid = IID_AMFBuffer();
> +
> + res = var.pInterface->pVtbl->QueryInterface(var.pInterface, &guid, (void**)&buffer); // query for buffer interface
> + if (res != AMF_OK) {
> + var.pInterface->pVtbl->Release(var.pInterface);
> + }
> + AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "QueryInterface(IID_AMFBuffer) failed with error %d\n", res);
> +
> + avctx->extradata_size = (int)buffer->pVtbl->GetSize(buffer);
> + avctx->extradata = av_mallocz(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
> + if (!avctx->extradata) {
> + buffer->pVtbl->Release(buffer);
> + var.pInterface->pVtbl->Release(var.pInterface);
> + return AVERROR(ENOMEM);
> + }
> + memcpy(avctx->extradata, buffer->pVtbl->GetNative(buffer), avctx->extradata_size);
> +
> + buffer->pVtbl->Release(buffer);
> + var.pInterface->pVtbl->Release(var.pInterface);
> +
> + return 0;
> +}
> +
> +static const AVCodecDefault defaults[] = {
> + { "refs", "-1" },
> + { "aspect", "0" },
> + { "sar", "0" },
> + { "qmin", "-1" },
> + { "qmax", "-1" },
> + { "b", "2M" },
> + { "g", "250" },
> + { "slices", "1" },
> + { NULL },
> +};
> +
> +static const AVClass h264_amf_class = {
> + .class_name = "h264_amf",
> + .item_name = av_default_item_name,
> + .option = options,
> + .version = LIBAVUTIL_VERSION_INT,
> +};
> +//TODO declare as HW encoder when available
> +AVCodec ff_h264_amf_encoder = {
> + .name = "h264_amf",
> + .long_name = NULL_IF_CONFIG_SMALL("AMD AMF H.264 Encoder"),
> + .type = AVMEDIA_TYPE_VIDEO,
> + .id = AV_CODEC_ID_H264,
> + .init = amf_encode_init_h264,
> + .send_frame = ff_amf_send_frame,
> + .receive_packet = ff_amf_receive_packet,
> + .close = ff_amf_encode_close,
> + .priv_data_size = sizeof(AmfContext),
> + .priv_class = &h264_amf_class,
> + .defaults = defaults,
> + .capabilities = AV_CODEC_CAP_DELAY,
> + .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
> + .pix_fmts = ff_amf_pix_fmts,
> +};
> diff --git a/libavcodec/amfenc_hevc.c b/libavcodec/amfenc_hevc.c
> new file mode 100644
> index 0000000000..ced57b1e9a
> --- /dev/null
> +++ b/libavcodec/amfenc_hevc.c
> @@ -0,0 +1,326 @@
> +/*
> + * 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 "libavutil/internal.h"
> +#include "libavutil/opt.h"
> +#include "amfenc.h"
> +#include "internal.h"
> +
> +#define OFFSET(x) offsetof(AmfContext, x)
> +#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
> +static const AVOption options[] = {
> + { "usage", "Set the encoding usage", OFFSET(usage), AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_HEVC_USAGE_TRANSCONDING }, AMF_VIDEO_ENCODER_HEVC_USAGE_TRANSCONDING, AMF_VIDEO_ENCODER_HEVC_USAGE_WEBCAM, VE, "usage" },
> + { "transcoding", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_USAGE_TRANSCONDING }, 0, 0, VE, "usage" },
> + { "ultralowlatency","", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_USAGE_ULTRA_LOW_LATENCY }, 0, 0, VE, "usage" },
> + { "lowlatency", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_USAGE_LOW_LATENCY }, 0, 0, VE, "usage" },
> + { "webcam", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_USAGE_WEBCAM }, 0, 0, VE, "usage" },
> +
> + { "profile", "Set the profile (default main)", OFFSET(profile), AV_OPT_TYPE_INT,{ .i64 = AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN }, AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN, AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN, VE, "profile" },
> + { "main", "", 0, AV_OPT_TYPE_CONST,{ .i64 = AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN }, 0, 0, VE, "profile" },
> +
> + { "profile_tier", "Set the profile tier (default main)", OFFSET(tier), AV_OPT_TYPE_INT,{ .i64 = AMF_VIDEO_ENCODER_HEVC_TIER_MAIN }, AMF_VIDEO_ENCODER_HEVC_TIER_MAIN, AMF_VIDEO_ENCODER_HEVC_TIER_HIGH, VE, "tier" },
> + { "main", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_TIER_MAIN }, 0, 0, VE, "tier" },
> + { "high", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_TIER_HIGH }, 0, 0, VE, "tier" },
> +
> + { "level", "Set the encoding level (default auto)", OFFSET(level), AV_OPT_TYPE_INT,{ .i64 = 0 }, 0, AMF_LEVEL_6_2, VE, "level" },
> + { "auto", "", 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, 0, 0, VE, "level" },
> + { "1.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_1 }, 0, 0, VE, "level" },
> + { "2.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_2 }, 0, 0, VE, "level" },
> + { "2.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_2_1 }, 0, 0, VE, "level" },
> + { "3.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_3 }, 0, 0, VE, "level" },
> + { "3.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_3_1 }, 0, 0, VE, "level" },
> + { "4.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_4 }, 0, 0, VE, "level" },
> + { "4.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_4_1 }, 0, 0, VE, "level" },
> + { "5.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_5 }, 0, 0, VE, "level" },
> + { "5.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_5_1 }, 0, 0, VE, "level" },
> + { "5.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_5_2 }, 0, 0, VE, "level" },
> + { "6.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_6 }, 0, 0, VE, "level" },
> + { "6.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_6_1 }, 0, 0, VE, "level" },
> + { "6.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_LEVEL_6_2 }, 0, 0, VE, "level" },
> +
> + { "quality", "Set the encoding quality", OFFSET(quality), AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_HEVC_QUALITY_PRESET_SPEED }, AMF_VIDEO_ENCODER_HEVC_QUALITY_PRESET_QUALITY, AMF_VIDEO_ENCODER_HEVC_QUALITY_PRESET_SPEED, VE, "quality" },
> + { "balanced", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_QUALITY_PRESET_BALANCED }, 0, 0, VE, "quality" },
> + { "speed", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_QUALITY_PRESET_SPEED }, 0, 0, VE, "quality" },
> + { "quality", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_QUALITY_PRESET_QUALITY }, 0, 0, VE, "quality" },
> +
> + { "rc", "Set the rate control mode", OFFSET(rate_control_mode), AV_OPT_TYPE_INT, { .i64 = AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_UNKNOWN }, AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_UNKNOWN, AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_CBR, VE, "rc" },
> + { "cqp", "Constant Quantization Parameter", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_CONSTANT_QP }, 0, 0, VE, "rc" },
> + { "cbr", "Constant Bitrate", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_CBR }, 0, 0, VE, "rc" },
> + { "vbr_peak", "Peak Contrained Variable Bitrate", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_PEAK_CONSTRAINED_VBR }, 0, 0, VE, "rc" },
> + { "vbr_latency", "Latency Constrained Variable Bitrate", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_LATENCY_CONSTRAINED_VBR }, 0, 0, VE, "rc" },
> +
> + { "header_insertion_mode", "Set header insertion mode", OFFSET(header_insertion_mode), AV_OPT_TYPE_INT,{ .i64 = AMF_VIDEO_ENCODER_HEVC_HEADER_INSERTION_MODE_NONE }, AMF_VIDEO_ENCODER_HEVC_HEADER_INSERTION_MODE_NONE, AMF_VIDEO_ENCODER_HEVC_HEADER_INSERTION_MODE_IDR_ALIGNED, VE, "hdrmode" },
> + { "none", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_HEADER_INSERTION_MODE_NONE }, 0, 0, VE, "hdrmode" },
> + { "gop", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_HEADER_INSERTION_MODE_GOP_ALIGNED }, 0, 0, VE, "hdrmode" },
> + { "idr", "", 0, AV_OPT_TYPE_CONST, { .i64 = AMF_VIDEO_ENCODER_HEVC_HEADER_INSERTION_MODE_IDR_ALIGNED }, 0, 0, VE, "hdrmode" },
> +
> + { "gops_per_idr", "GOPs per IDR 0-no IDR will be inserted", OFFSET(gops_per_idr), AV_OPT_TYPE_INT, { .i64 = 60 }, 0, INT_MAX, VE },
> + { "preanalysis", "Enable preanalysis", OFFSET(preanalysis), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE},
> + { "vbaq", "Enable VBAQ", OFFSET(enable_vbaq), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE},
> + { "enforce_hrd", "Enforce HRD", OFFSET(enforce_hrd), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE},
> + { "filler_data", "Filler Data Enable", OFFSET(filler_data), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE},
> + { "max_au_size", "Maximum Access Unit Size for rate control (in bits)", OFFSET(max_au_size), AV_OPT_TYPE_INT,{ .i64 = 0 }, 0, INT_MAX, VE},
> + { "min_qp_i", "min quantization parameter for I-frame", OFFSET(min_qp_i), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
> + { "max_qp_i", "max quantization parameter for I-frame", OFFSET(max_qp_i), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
> + { "min_qp_p", "min quantization parameter for P-frame", OFFSET(min_qp_p), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
> + { "max_qp_p", "max quantization parameter for P-frame", OFFSET(max_qp_p), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
> + { "qp_p", "quantization parameter for P-frame", OFFSET(qp_p), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
> + { "qp_i", "quantization parameter for I-frame", OFFSET(qp_i), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 51, VE },
> + { "skip_frame", "Rate Control Based Frame Skip", OFFSET(skip_frame), AV_OPT_TYPE_BOOL,{ .i64 = 0 }, 0, 1, VE },
> + { "me_half_pel", "Enable ME Half Pixel", OFFSET(me_half_pel), AV_OPT_TYPE_BOOL,{ .i64 = 1 }, 0, 1, VE },
> + { "me_quarter_pel", "Enable ME Quarter Pixel ", OFFSET(me_quarter_pel),AV_OPT_TYPE_BOOL,{ .i64 = 1 }, 0, 1, VE },
> +
> + { "aud", "Inserts AU Delimiter NAL unit", OFFSET(aud) ,AV_OPT_TYPE_BOOL,{ .i64 = 0 }, 0, 1, VE },
> +
> + { "log_to_dbg", "Enable AMF logging to debug output", OFFSET(log_to_dbg), AV_OPT_TYPE_BOOL,{ .i64 = 0 }, 0, 1, VE },
> + { NULL }
> +};
> +
> +static av_cold int amf_encode_init_hevc(AVCodecContext *avctx)
> +{
> + int ret = 0;
> + AMF_RESULT res = AMF_OK;
> + AmfContext *ctx = avctx->priv_data;
> + AMFVariantStruct var = {0};
> + amf_int64 profile = 0;
> + amf_int64 profile_level = 0;
> + AMFBuffer *buffer;
> + AMFGuid guid;
> + AMFRate framerate;
> + AMFSize framesize = AMFConstructSize(avctx->width, avctx->height);
> + int deblocking_filter = (avctx->flags & AV_CODEC_FLAG_LOOP_FILTER) ? 1 : 0;
> +
> + if (avctx->framerate.num > 0 && avctx->framerate.den > 0) {
> + framerate = AMFConstructRate(avctx->framerate.num, avctx->framerate.den);
> + } else {
> + framerate = AMFConstructRate(avctx->time_base.den, avctx->time_base.num * avctx->ticks_per_frame);
> + }
> +
> + if ((ret = ff_amf_encode_init(avctx)) < 0)
> + return ret;
> +
> + // init static parameters
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_USAGE, ctx->usage);
> +
> + AMF_ASSIGN_PROPERTY_SIZE(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_FRAMESIZE, framesize);
> +
> + AMF_ASSIGN_PROPERTY_RATE(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_FRAMERATE, framerate);
> +
> + switch (avctx->profile) {
> + case FF_PROFILE_HEVC_MAIN:
> + profile = AMF_VIDEO_ENCODER_HEVC_PROFILE_MAIN;
> + break;
> + default:
> + break;
> + }
> + if (profile == 0) {
> + profile = ctx->profile;
> + }
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_PROFILE, profile);
> +
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_TIER, ctx->tier);
> +
> + profile_level = avctx->level;
> + if (profile_level == 0) {
> + profile_level = ctx->level;
> + }
> + if (profile_level != 0) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_PROFILE_LEVEL, profile_level);
> + }
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_QUALITY_PRESET, ctx->quality);
> + // Maximum Reference Frames
> + if (avctx->refs != 0) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MAX_NUM_REFRAMES, avctx->refs);
> + }
> + // Aspect Ratio
> + if (avctx->sample_aspect_ratio.den && avctx->sample_aspect_ratio.num) {
> + AMFRatio ratio = AMFConstructRatio(avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
> + AMF_ASSIGN_PROPERTY_RATIO(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_ASPECT_RATIO, ratio);
> + }
> +
> + // Picture control properties
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_NUM_GOPS_PER_IDR, ctx->gops_per_idr);
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_GOP_SIZE, avctx->gop_size);
> + if (avctx->slices > 1) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_SLICES_PER_FRAME, avctx->slices);
> + }
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_DE_BLOCKING_FILTER_DISABLE, deblocking_filter);
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_HEADER_INSERTION_MODE, ctx->header_insertion_mode);
> +
> + // Rate control
> + // autodetect rate control method
> + if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_UNKNOWN) {
> + if (ctx->min_qp_i != -1 || ctx->max_qp_i != -1 ||
> + ctx->min_qp_p != -1 || ctx->max_qp_p != -1 ||
> + ctx->qp_i !=-1 || ctx->qp_p != -1) {
> + ctx->rate_control_mode = AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_CONSTANT_QP;
> + av_log(ctx, AV_LOG_DEBUG, "Rate control turned to CQP\n");
> + } else if (avctx->rc_max_rate > 0) {
> + ctx->rate_control_mode = AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_PEAK_CONSTRAINED_VBR;
> + av_log(ctx, AV_LOG_DEBUG, "Rate control turned to Peak VBR\n");
> + } else {
> + ctx->rate_control_mode = AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_CBR;
> + av_log(ctx, AV_LOG_DEBUG, "Rate control turned to CBR\n");
> + }
> + }
> +
> +
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD, ctx->rate_control_mode);
> + if (avctx->rc_buffer_size) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_VBV_BUFFER_SIZE, avctx->rc_buffer_size);
> +
> + if (avctx->rc_initial_buffer_occupancy != 0) {
> + int amf_buffer_fullness = avctx->rc_initial_buffer_occupancy * 64 / avctx->rc_buffer_size;
> + if (amf_buffer_fullness > 64)
> + amf_buffer_fullness = 64;
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_INITIAL_VBV_BUFFER_FULLNESS, amf_buffer_fullness);
> + }
> + }
> + // Pre-Pass, Pre-Analysis, Two-Pass
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_PREANALYSIS_ENABLE, ctx->preanalysis);
> +
> + if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_CONSTANT_QP) {
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_ENABLE_VBAQ, false);
> + if (ctx->enable_vbaq)
> + av_log(ctx, AV_LOG_WARNING, "VBAQ is not supported by cqp Rate Control Method, automatically disabled\n");
> + } else {
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_ENABLE_VBAQ, !!ctx->enable_vbaq);
> + }
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MOTION_HALF_PIXEL, ctx->me_half_pel);
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MOTION_QUARTERPIXEL, ctx->me_quarter_pel);
> +
> + // init encoder
> + res = ctx->encoder->pVtbl->Init(ctx->encoder, ctx->format, avctx->width, avctx->height);
> + AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "encoder->Init() failed with error %d\n", res);
> +
> + // init dynamic rate control params
> + if (ctx->max_au_size)
> + ctx->enforce_hrd = 1;
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_ENFORCE_HRD, ctx->enforce_hrd);
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_FILLER_DATA_ENABLE, ctx->filler_data);
> +
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_TARGET_BITRATE, avctx->bit_rate);
> +
> + if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_CBR) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_PEAK_BITRATE, avctx->bit_rate);
> + }
> + if (avctx->rc_max_rate) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_PEAK_BITRATE, avctx->rc_max_rate);
> + } else if (ctx->rate_control_mode == AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_METHOD_PEAK_CONSTRAINED_VBR) {
> + av_log(ctx, AV_LOG_WARNING, "rate control mode is PEAK_CONSTRAINED_VBR but rc_max_rate is not set\n");
> + }
> +
> + // init dynamic picture control params
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MAX_AU_SIZE, ctx->max_au_size);
> +
> + if (ctx->min_qp_i != -1) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MIN_QP_I, ctx->min_qp_i);
> + } else if (avctx->qmin != -1) {
> + int qval = avctx->qmin > 51 ? 51 : avctx->qmin;
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MIN_QP_I, qval);
> + }
> + if (ctx->max_qp_i != -1) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MAX_QP_I, ctx->max_qp_i);
> + } else if (avctx->qmax != -1) {
> + int qval = avctx->qmax > 51 ? 51 : avctx->qmax;
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MAX_QP_I, qval);
> + }
> + if (ctx->min_qp_p != -1) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MIN_QP_P, ctx->min_qp_p);
> + } else if (avctx->qmin != -1) {
> + int qval = avctx->qmin > 51 ? 51 : avctx->qmin;
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MIN_QP_P, qval);
> + }
> + if (ctx->max_qp_p != -1) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MAX_QP_P, ctx->max_qp_p);
> + } else if (avctx->qmax != -1) {
> + int qval = avctx->qmax > 51 ? 51 : avctx->qmax;
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_MAX_QP_P, qval);
> + }
> +
> + if (ctx->qp_p != -1) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_QP_I, ctx->qp_p);
> + }
> + if (ctx->qp_i != -1) {
> + AMF_ASSIGN_PROPERTY_INT64(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_QP_P, ctx->qp_i);
> + }
> + AMF_ASSIGN_PROPERTY_BOOL(res, ctx->encoder, AMF_VIDEO_ENCODER_HEVC_RATE_CONTROL_SKIP_FRAME_ENABLE, ctx->skip_frame);
> +
> +
> + // fill extradata
> + res = AMFVariantInit(&var);
> + AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "AMFVariantInit() failed with error %d\n", res);
> +
> + res = ctx->encoder->pVtbl->GetProperty(ctx->encoder, AMF_VIDEO_ENCODER_HEVC_EXTRADATA, &var);
> + AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "GetProperty(AMF_VIDEO_ENCODER_EXTRADATA) failed with error %d\n", res);
> + AMF_RETURN_IF_FALSE(ctx, var.pInterface != NULL, AVERROR_BUG, "GetProperty(AMF_VIDEO_ENCODER_EXTRADATA) returned NULL\n");
> +
> + guid = IID_AMFBuffer();
> +
> + res = var.pInterface->pVtbl->QueryInterface(var.pInterface, &guid, (void**)&buffer); // query for buffer interface
> + if (res != AMF_OK) {
> + var.pInterface->pVtbl->Release(var.pInterface);
> + }
> + AMF_RETURN_IF_FALSE(ctx, res == AMF_OK, AVERROR_BUG, "QueryInterface(IID_AMFBuffer) failed with error %d\n", res);
> +
> + avctx->extradata_size = (int)buffer->pVtbl->GetSize(buffer);
> + avctx->extradata = av_mallocz(avctx->extradata_size + AV_INPUT_BUFFER_PADDING_SIZE);
> + if (!avctx->extradata) {
> + buffer->pVtbl->Release(buffer);
> + var.pInterface->pVtbl->Release(var.pInterface);
> + return AVERROR(ENOMEM);
> + }
> + memcpy(avctx->extradata, buffer->pVtbl->GetNative(buffer), avctx->extradata_size);
> +
> + buffer->pVtbl->Release(buffer);
> + var.pInterface->pVtbl->Release(var.pInterface);
> +
> + return 0;
> +}
> +static const AVCodecDefault defaults[] = {
> + { "refs", "-1" },
> + { "aspect", "0" },
> + { "sar", "0" },
> + { "b", "2M" },
> + { "g", "250" },
> + { "slices", "1" },
> + { NULL },
> +};
> +static const AVClass hevc_amf_class = {
> + .class_name = "hevc_amf",
> + .item_name = av_default_item_name,
> + .option = options,
> + .version = LIBAVUTIL_VERSION_INT,
> +};
> +//TODO declare as HW encoder when available
> +AVCodec ff_hevc_amf_encoder = {
> + .name = "hevc_amf",
> + .long_name = NULL_IF_CONFIG_SMALL("AMD AMF HEVC encoder"),
> + .type = AVMEDIA_TYPE_VIDEO,
> + .id = AV_CODEC_ID_HEVC,
> + .init = amf_encode_init_hevc,
> + .send_frame = ff_amf_send_frame,
> + .receive_packet = ff_amf_receive_packet,
> + .close = ff_amf_encode_close,
> + .priv_data_size = sizeof(AmfContext),
> + .priv_class = &hevc_amf_class,
> + .defaults = defaults,
> + .capabilities = AV_CODEC_CAP_DELAY,
> + .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
> + .pix_fmts = ff_amf_pix_fmts,
> +};
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