/* * Intel MediaSDK QSV codec-independent code * * copyright (c) 2013 Luca Barbato * copyright (c) 2015 Anton Khirnov <anton@khirnov.net> * * 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/pixfmt.h" #include "libavutil/time.h" #include "avcodec.h" #include "internal.h" #include "qsv_internal.h" #include "qsvdec.h" int ff_qsv_map_pixfmt(enum AVPixelFormat format) { switch (format) { case AV_PIX_FMT_YUV420P: case AV_PIX_FMT_YUVJ420P: return AV_PIX_FMT_NV12; default: return AVERROR(ENOSYS); } } static int qsv_init_session(AVCodecContext *avctx, QSVContext *q, mfxSession session) { if (!session) { if (!q->internal_session) { int ret = ff_qsv_init_internal_session(avctx, &q->internal_session); if (ret < 0) return ret; } q->session = q->internal_session; } else { q->session = session; } /* make sure the decoder is uninitialized */ MFXVideoDECODE_Close(q->session); return 0; } int ff_qsv_decode_init(AVCodecContext *avctx, QSVContext *q, mfxSession session) { mfxVideoParam param = { { 0 } }; int ret; ret = qsv_init_session(avctx, q, session); if (ret < 0) { av_log(avctx, AV_LOG_ERROR, "Error initializing an MFX session\n"); return ret; } ret = ff_qsv_codec_id_to_mfx(avctx->codec_id); if (ret < 0) return ret; param.mfx.CodecId = ret; param.mfx.CodecProfile = avctx->profile; param.mfx.CodecLevel = avctx->level; param.mfx.FrameInfo.BitDepthLuma = 8; param.mfx.FrameInfo.BitDepthChroma = 8; param.mfx.FrameInfo.Shift = 0; param.mfx.FrameInfo.FourCC = MFX_FOURCC_NV12; param.mfx.FrameInfo.Width = avctx->coded_width; param.mfx.FrameInfo.Height = avctx->coded_height; param.mfx.FrameInfo.ChromaFormat = MFX_CHROMAFORMAT_YUV420; param.IOPattern = q->iopattern; param.AsyncDepth = q->async_depth; param.ExtParam = q->ext_buffers; param.NumExtParam = q->nb_ext_buffers; ret = MFXVideoDECODE_Init(q->session, ¶m); if (ret < 0) { av_log(avctx, AV_LOG_ERROR, "Error initializing the MFX video decoder\n"); return ff_qsv_error(ret); } return 0; } static int alloc_frame(AVCodecContext *avctx, QSVFrame *frame) { int ret; ret = ff_get_buffer(avctx, frame->frame, AV_GET_BUFFER_FLAG_REF); if (ret < 0) return ret; if (frame->frame->format == AV_PIX_FMT_QSV) { frame->surface = (mfxFrameSurface1*)frame->frame->data[3]; } else { frame->surface_internal.Info.BitDepthLuma = 8; frame->surface_internal.Info.BitDepthChroma = 8; frame->surface_internal.Info.FourCC = MFX_FOURCC_NV12; frame->surface_internal.Info.Width = avctx->coded_width; frame->surface_internal.Info.Height = avctx->coded_height; frame->surface_internal.Info.ChromaFormat = MFX_CHROMAFORMAT_YUV420; frame->surface_internal.Data.PitchLow = frame->frame->linesize[0]; frame->surface_internal.Data.Y = frame->frame->data[0]; frame->surface_internal.Data.UV = frame->frame->data[1]; frame->surface = &frame->surface_internal; } return 0; } static void qsv_clear_unused_frames(QSVContext *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_surface(AVCodecContext *avctx, QSVContext *q, mfxFrameSurface1 **surf) { QSVFrame *frame, **last; int ret; qsv_clear_unused_frames(q); frame = q->work_frames; last = &q->work_frames; while (frame) { if (!frame->surface) { ret = alloc_frame(avctx, frame); if (ret < 0) return ret; *surf = frame->surface; 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; ret = alloc_frame(avctx, frame); if (ret < 0) return ret; *surf = frame->surface; return 0; } static AVFrame *find_frame(QSVContext *q, mfxFrameSurface1 *surf) { QSVFrame *cur = q->work_frames; while (cur) { if (surf == cur->surface) return cur->frame; cur = cur->next; } return NULL; } int ff_qsv_decode(AVCodecContext *avctx, QSVContext *q, AVFrame *frame, int *got_frame, AVPacket *avpkt) { mfxFrameSurface1 *insurf; mfxFrameSurface1 *outsurf; mfxSyncPoint sync; mfxBitstream bs = { { { 0 } } }; int ret; if (avpkt->size) { bs.Data = avpkt->data; bs.DataLength = avpkt->size; bs.MaxLength = bs.DataLength; bs.TimeStamp = avpkt->pts; } do { ret = get_surface(avctx, q, &insurf); if (ret < 0) return ret; ret = MFXVideoDECODE_DecodeFrameAsync(q->session, avpkt->size ? &bs : NULL, insurf, &outsurf, &sync); if (ret == MFX_WRN_DEVICE_BUSY) av_usleep(1); } while (ret == MFX_WRN_DEVICE_BUSY || ret == MFX_ERR_MORE_SURFACE); if (ret != MFX_ERR_NONE && ret != MFX_ERR_MORE_DATA && ret != MFX_WRN_VIDEO_PARAM_CHANGED && ret != MFX_ERR_MORE_SURFACE) { av_log(avctx, AV_LOG_ERROR, "Error during QSV decoding.\n"); return ff_qsv_error(ret); } if (sync) { AVFrame *src_frame; MFXVideoCORE_SyncOperation(q->session, sync, 60000); src_frame = find_frame(q, outsurf); if (!src_frame) { av_log(avctx, AV_LOG_ERROR, "The returned surface does not correspond to any frame\n"); return AVERROR_BUG; } ret = av_frame_ref(frame, src_frame); if (ret < 0) return ret; frame->pkt_pts = frame->pts = outsurf->Data.TimeStamp; frame->repeat_pict = outsurf->Info.PicStruct & MFX_PICSTRUCT_FRAME_TRIPLING ? 4 : outsurf->Info.PicStruct & MFX_PICSTRUCT_FRAME_DOUBLING ? 2 : outsurf->Info.PicStruct & MFX_PICSTRUCT_FIELD_REPEATED ? 1 : 0; frame->top_field_first = outsurf->Info.PicStruct & MFX_PICSTRUCT_FIELD_TFF; frame->interlaced_frame = !(outsurf->Info.PicStruct & MFX_PICSTRUCT_PROGRESSIVE); *got_frame = 1; } return bs.DataOffset; } int ff_qsv_decode_close(QSVContext *q) { QSVFrame *cur = q->work_frames; while (cur) { q->work_frames = cur->next; av_frame_free(&cur->frame); av_freep(&cur); cur = q->work_frames; } if (q->internal_session) MFXClose(q->internal_session); return 0; }