| /* |
| * 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; |
| } |
