/* * Intel MediaSDK QSV encoder utility functions * * copyright (c) 2013 Yukinori Yamazoe * copyright (c) 2015 Anton Khirnov * * 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 <string.h> #include <sys/types.h> #include <mfx/mfxvideo.h> #include "libavutil/common.h" #include "libavutil/mem.h" #include "libavutil/log.h" #include "libavutil/time.h" #include "libavutil/imgutils.h" #include "avcodec.h" #include "internal.h" #include "qsv.h" #include "qsv_internal.h" #include "qsvenc.h" static int init_video_param(AVCodecContext *avctx, QSVEncContext *q) { const char *ratecontrol_desc; float quant; int ret; ret = ff_qsv_codec_id_to_mfx(avctx->codec_id); if (ret < 0) return AVERROR_BUG; q->param.mfx.CodecId = ret; if (avctx->level > 0) q->param.mfx.CodecLevel = avctx->level; q->param.mfx.CodecProfile = q->profile; q->param.mfx.TargetUsage = q->preset; q->param.mfx.GopPicSize = FFMAX(0, avctx->gop_size); q->param.mfx.GopRefDist = FFMAX(-1, avctx->max_b_frames) + 1; q->param.mfx.GopOptFlag = avctx->flags & CODEC_FLAG_CLOSED_GOP ? MFX_GOP_CLOSED : 0; q->param.mfx.IdrInterval = q->idr_interval; q->param.mfx.NumSlice = avctx->slices; q->param.mfx.NumRefFrame = FFMAX(0, avctx->refs); q->param.mfx.EncodedOrder = 0; q->param.mfx.BufferSizeInKB = 0; q->param.mfx.FrameInfo.FourCC = MFX_FOURCC_NV12; q->param.mfx.FrameInfo.Width = FFALIGN(avctx->width, 16); q->param.mfx.FrameInfo.Height = FFALIGN(avctx->height, 32); q->param.mfx.FrameInfo.CropX = 0; q->param.mfx.FrameInfo.CropY = 0; q->param.mfx.FrameInfo.CropW = avctx->width; q->param.mfx.FrameInfo.CropH = avctx->height; q->param.mfx.FrameInfo.AspectRatioW = avctx->sample_aspect_ratio.num; q->param.mfx.FrameInfo.AspectRatioH = avctx->sample_aspect_ratio.den; q->param.mfx.FrameInfo.PicStruct = MFX_PICSTRUCT_PROGRESSIVE; q->param.mfx.FrameInfo.ChromaFormat = MFX_CHROMAFORMAT_YUV420; q->param.mfx.FrameInfo.BitDepthLuma = 8; q->param.mfx.FrameInfo.BitDepthChroma = 8; if (avctx->framerate.den > 0 && avctx->framerate.num > 0) { q->param.mfx.FrameInfo.FrameRateExtN = avctx->framerate.num; q->param.mfx.FrameInfo.FrameRateExtD = avctx->framerate.den; } else { q->param.mfx.FrameInfo.FrameRateExtN = avctx->time_base.den; q->param.mfx.FrameInfo.FrameRateExtD = avctx->time_base.num; } if (avctx->flags & CODEC_FLAG_QSCALE) { q->param.mfx.RateControlMethod = MFX_RATECONTROL_CQP; ratecontrol_desc = "constant quantization parameter (CQP)"; } else if (avctx->rc_max_rate == avctx->bit_rate) { q->param.mfx.RateControlMethod = MFX_RATECONTROL_CBR; ratecontrol_desc = "constant bitrate (CBR)"; } else if (!avctx->rc_max_rate) { q->param.mfx.RateControlMethod = MFX_RATECONTROL_AVBR; ratecontrol_desc = "average variable bitrate (AVBR)"; } else { q->param.mfx.RateControlMethod = MFX_RATECONTROL_VBR; ratecontrol_desc = "variable bitrate (VBR)"; } av_log(avctx, AV_LOG_VERBOSE, "Using the %s ratecontrol method\n", ratecontrol_desc); switch (q->param.mfx.RateControlMethod) { case MFX_RATECONTROL_CBR: case MFX_RATECONTROL_VBR: q->param.mfx.InitialDelayInKB = avctx->rc_initial_buffer_occupancy / 1000; q->param.mfx.TargetKbps = avctx->bit_rate / 1000; q->param.mfx.MaxKbps = avctx->bit_rate / 1000; break; case MFX_RATECONTROL_CQP: quant = avctx->global_quality / FF_QP2LAMBDA; q->param.mfx.QPI = av_clip(quant * fabs(avctx->i_quant_factor) + avctx->i_quant_offset, 0, 51); q->param.mfx.QPP = av_clip(quant, 0, 51); q->param.mfx.QPB = av_clip(quant * fabs(avctx->b_quant_factor) + avctx->b_quant_offset, 0, 51); break; case MFX_RATECONTROL_AVBR: q->param.mfx.TargetKbps = avctx->bit_rate / 1000; q->param.mfx.Convergence = q->avbr_convergence; q->param.mfx.Accuracy = q->avbr_accuracy; break; } q->extco.Header.BufferId = MFX_EXTBUFF_CODING_OPTION; q->extco.Header.BufferSz = sizeof(q->extco); q->extco.CAVLC = avctx->coder_type == FF_CODER_TYPE_VLC ? MFX_CODINGOPTION_ON : MFX_CODINGOPTION_UNKNOWN; q->extparam[0] = (mfxExtBuffer *)&q->extco; q->param.ExtParam = q->extparam; q->param.NumExtParam = FF_ARRAY_ELEMS(q->extparam); return 0; } static int qsv_retrieve_enc_params(AVCodecContext *avctx, QSVEncContext *q) { uint8_t sps_buf[128]; uint8_t pps_buf[128]; mfxExtCodingOptionSPSPPS extradata = { .Header.BufferId = MFX_EXTBUFF_CODING_OPTION_SPSPPS, .Header.BufferSz = sizeof(extradata), .SPSBuffer = sps_buf, .SPSBufSize = sizeof(sps_buf), .PPSBuffer = pps_buf, .PPSBufSize = sizeof(pps_buf) }; mfxExtBuffer *ext_buffers[] = { (mfxExtBuffer*)&extradata, }; int ret; q->param.ExtParam = ext_buffers; q->param.NumExtParam = FF_ARRAY_ELEMS(ext_buffers); ret = MFXVideoENCODE_GetVideoParam(q->session, &q->param); if (ret < 0) return ff_qsv_error(ret); q->packet_size = q->param.mfx.BufferSizeInKB * 1000; if (!extradata.SPSBufSize || !extradata.PPSBufSize) { av_log(avctx, AV_LOG_ERROR, "No extradata returned from libmfx.\n"); return AVERROR_UNKNOWN; } avctx->extradata = av_malloc(extradata.SPSBufSize + extradata.PPSBufSize + FF_INPUT_BUFFER_PADDING_SIZE); if (!avctx->extradata) return AVERROR(ENOMEM); memcpy(avctx->extradata, sps_buf, extradata.SPSBufSize); memcpy(avctx->extradata + extradata.SPSBufSize, pps_buf, extradata.PPSBufSize); avctx->extradata_size = extradata.SPSBufSize + extradata.PPSBufSize; memset(avctx->extradata + avctx->extradata_size, 0, FF_INPUT_BUFFER_PADDING_SIZE); return 0; } int ff_qsv_enc_init(AVCodecContext *avctx, QSVEncContext *q) { int ret; q->param.IOPattern = MFX_IOPATTERN_IN_SYSTEM_MEMORY; q->param.AsyncDepth = q->async_depth; if (avctx->hwaccel_context) { AVQSVContext *qsv = avctx->hwaccel_context; q->session = qsv->session; q->param.IOPattern = qsv->iopattern; } if (!q->session) { ret = ff_qsv_init_internal_session(avctx, &q->internal_session); if (ret < 0) return ret; q->session = q->internal_session; } ret = init_video_param(avctx, q); if (ret < 0) return ret; ret = MFXVideoENCODE_QueryIOSurf(q->session, &q->param, &q->req); if (ret < 0) { av_log(avctx, AV_LOG_ERROR, "Error querying the encoding parameters\n"); return ff_qsv_error(ret); } ret = MFXVideoENCODE_Init(q->session, &q->param); if (ret < 0) { av_log(avctx, AV_LOG_ERROR, "Error initializing the encoder\n"); return ff_qsv_error(ret); } ret = qsv_retrieve_enc_params(avctx, q); if (ret < 0) { av_log(avctx, AV_LOG_ERROR, "Error retrieving encoding parameters.\n"); return ret; } avctx->coded_frame = av_frame_alloc(); if (!avctx->coded_frame) return AVERROR(ENOMEM); q->avctx = avctx; return 0; } static void clear_unused_frames(QSVEncContext *q) { QSVFrame *cur = q->work_frames; while (cur) { if (cur->surface && !cur->surface->Data.Locked) { cur->surface = NULL; av_frame_unref(cur->frame); } cur = cur->next; } } static int get_free_frame(QSVEncContext *q, QSVFrame **f) { QSVFrame *frame, **last; clear_unused_frames(q); frame = q->work_frames; last = &q->work_frames; while (frame) { if (!frame->surface) { *f = frame; return 0; } last = &frame->next; frame = frame->next; } frame = av_mallocz(sizeof(*frame)); if (!frame) return AVERROR(ENOMEM); frame->frame = av_frame_alloc(); if (!frame->frame) { av_freep(&frame); return AVERROR(ENOMEM); } *last = frame; *f = frame; return 0; } static int submit_frame(QSVEncContext *q, const AVFrame *frame, mfxFrameSurface1 **surface) { QSVFrame *qf; int ret; ret = get_free_frame(q, &qf); if (ret < 0) return ret; if (frame->format == AV_PIX_FMT_QSV) { ret = av_frame_ref(qf->frame, frame); if (ret < 0) return ret; qf->surface = (mfxFrameSurface1*)qf->frame->data[3]; *surface = qf->surface; return 0; } /* make a copy if the input is not padded as libmfx requires */ if (frame->height & 31 || frame->linesize[0] & 15) { qf->frame->height = FFALIGN(frame->height, 32); qf->frame->width = FFALIGN(frame->width, 16); ret = ff_get_buffer(q->avctx, qf->frame, AV_GET_BUFFER_FLAG_REF); if (ret < 0) return ret; qf->frame->height = frame->height; qf->frame->width = frame->width; ret = av_frame_copy(qf->frame, frame); if (ret < 0) { av_frame_unref(qf->frame); return ret; } } else { ret = av_frame_ref(qf->frame, frame); if (ret < 0) return ret; } qf->surface_internal.Info = q->param.mfx.FrameInfo; qf->surface_internal.Info.PicStruct = !frame->interlaced_frame ? MFX_PICSTRUCT_PROGRESSIVE : frame->top_field_first ? MFX_PICSTRUCT_FIELD_TFF : MFX_PICSTRUCT_FIELD_BFF; if (frame->repeat_pict == 1) qf->surface_internal.Info.PicStruct |= MFX_PICSTRUCT_FIELD_REPEATED; else if (frame->repeat_pict == 2) qf->surface_internal.Info.PicStruct |= MFX_PICSTRUCT_FRAME_DOUBLING; else if (frame->repeat_pict == 4) qf->surface_internal.Info.PicStruct |= MFX_PICSTRUCT_FRAME_TRIPLING; qf->surface_internal.Data.PitchLow = qf->frame->linesize[0]; qf->surface_internal.Data.Y = qf->frame->data[0]; qf->surface_internal.Data.UV = qf->frame->data[1]; qf->surface_internal.Data.TimeStamp = av_rescale_q(frame->pts, q->avctx->time_base, (AVRational){1, 90000}); qf->surface = &qf->surface_internal; *surface = qf->surface; return 0; } static void print_interlace_msg(AVCodecContext *avctx, QSVEncContext *q) { if (q->param.mfx.CodecId == MFX_CODEC_AVC) { if (q->param.mfx.CodecProfile == MFX_PROFILE_AVC_BASELINE || q->param.mfx.CodecLevel < MFX_LEVEL_AVC_21 || q->param.mfx.CodecLevel > MFX_LEVEL_AVC_41) av_log(avctx, AV_LOG_WARNING, "Interlaced coding is supported" " at Main/High Profile Level 2.1-4.1\n"); } } int ff_qsv_encode(AVCodecContext *avctx, QSVEncContext *q, AVPacket *pkt, const AVFrame *frame, int *got_packet) { mfxBitstream bs = { { { 0 } } }; mfxFrameSurface1 *surf = NULL; mfxSyncPoint sync = NULL; int ret; if (frame) { ret = submit_frame(q, frame, &surf); if (ret < 0) { av_log(avctx, AV_LOG_ERROR, "Error submitting the frame for encoding.\n"); return ret; } } ret = ff_alloc_packet(pkt, q->packet_size); if (ret < 0) { av_log(avctx, AV_LOG_ERROR, "Error allocating the output packet\n"); return ret; } bs.Data = pkt->data; bs.MaxLength = pkt->size; do { ret = MFXVideoENCODE_EncodeFrameAsync(q->session, NULL, surf, &bs, &sync); if (ret == MFX_WRN_DEVICE_BUSY) av_usleep(1); } while (ret > 0); if (ret < 0) return (ret == MFX_ERR_MORE_DATA) ? 0 : ff_qsv_error(ret); if (ret == MFX_WRN_INCOMPATIBLE_VIDEO_PARAM && frame->interlaced_frame) print_interlace_msg(avctx, q); if (sync) { MFXVideoCORE_SyncOperation(q->session, sync, 60000); if (bs.FrameType & MFX_FRAMETYPE_I || bs.FrameType & MFX_FRAMETYPE_xI) avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I; else if (bs.FrameType & MFX_FRAMETYPE_P || bs.FrameType & MFX_FRAMETYPE_xP) avctx->coded_frame->pict_type = AV_PICTURE_TYPE_P; else if (bs.FrameType & MFX_FRAMETYPE_B || bs.FrameType & MFX_FRAMETYPE_xB) avctx->coded_frame->pict_type = AV_PICTURE_TYPE_B; pkt->dts = av_rescale_q(bs.DecodeTimeStamp, (AVRational){1, 90000}, avctx->time_base); pkt->pts = av_rescale_q(bs.TimeStamp, (AVRational){1, 90000}, avctx->time_base); pkt->size = bs.DataLength; if (bs.FrameType & MFX_FRAMETYPE_IDR || bs.FrameType & MFX_FRAMETYPE_xIDR) pkt->flags |= AV_PKT_FLAG_KEY; *got_packet = 1; } return 0; } int ff_qsv_enc_close(AVCodecContext *avctx, QSVEncContext *q) { QSVFrame *cur; MFXVideoENCODE_Close(q->session); if (q->internal_session) MFXClose(q->internal_session); q->session = NULL; q->internal_session = NULL; cur = q->work_frames; while (cur) { q->work_frames = cur->next; av_frame_free(&cur->frame); av_freep(&cur); cur = q->work_frames; } av_frame_free(&avctx->coded_frame); return 0; }