/* * 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/hwcontext.h" #include "libavutil/hwcontext_qsv.h" #include "libavutil/mem.h" #include "libavutil/log.h" #include "libavutil/pixdesc.h" #include "libavutil/pixfmt.h" #include "libavutil/time.h" #include "avcodec.h" #include "internal.h" #include "qsv.h" #include "qsv_internal.h" #include "qsvdec.h" static int qsv_init_session(AVCodecContext *avctx, QSVContext *q, mfxSession session, AVBufferRef *hw_frames_ref, AVBufferRef *hw_device_ref) { int ret; if (session) { q->session = session; } else if (hw_frames_ref) { if (q->internal_session) { MFXClose(q->internal_session); q->internal_session = NULL; } av_buffer_unref(&q->frames_ctx.hw_frames_ctx); q->frames_ctx.hw_frames_ctx = av_buffer_ref(hw_frames_ref); if (!q->frames_ctx.hw_frames_ctx) return AVERROR(ENOMEM); ret = ff_qsv_init_session_frames(avctx, &q->internal_session, &q->frames_ctx, q->load_plugins, q->iopattern == MFX_IOPATTERN_OUT_OPAQUE_MEMORY); if (ret < 0) { av_buffer_unref(&q->frames_ctx.hw_frames_ctx); return ret; } q->session = q->internal_session; } else if (hw_device_ref) { if (q->internal_session) { MFXClose(q->internal_session); q->internal_session = NULL; } ret = ff_qsv_init_session_device(avctx, &q->internal_session, hw_device_ref, q->load_plugins); if (ret < 0) return ret; q->session = q->internal_session; } else { if (!q->internal_session) { ret = ff_qsv_init_internal_session(avctx, &q->internal_session, q->load_plugins); if (ret < 0) return ret; } q->session = q->internal_session; } /* make sure the decoder is uninitialized */ MFXVideoDECODE_Close(q->session); return 0; } static int qsv_decode_init(AVCodecContext *avctx, QSVContext *q) { const AVPixFmtDescriptor *desc; mfxSession session = NULL; int iopattern = 0; mfxVideoParam param = { 0 }; int frame_width = avctx->coded_width; int frame_height = avctx->coded_height; int ret; desc = av_pix_fmt_desc_get(avctx->sw_pix_fmt); if (!desc) return AVERROR_BUG; if (!q->async_fifo) { q->async_fifo = av_fifo_alloc((1 + q->async_depth) * (sizeof(mfxSyncPoint*) + sizeof(QSVFrame*))); if (!q->async_fifo) return AVERROR(ENOMEM); } if (avctx->pix_fmt == AV_PIX_FMT_QSV && avctx->hwaccel_context) { AVQSVContext *user_ctx = avctx->hwaccel_context; session = user_ctx->session; iopattern = user_ctx->iopattern; q->ext_buffers = user_ctx->ext_buffers; q->nb_ext_buffers = user_ctx->nb_ext_buffers; } if (avctx->hw_frames_ctx) { AVHWFramesContext *frames_ctx = (AVHWFramesContext*)avctx->hw_frames_ctx->data; AVQSVFramesContext *frames_hwctx = frames_ctx->hwctx; if (!iopattern) { if (frames_hwctx->frame_type & MFX_MEMTYPE_OPAQUE_FRAME) iopattern = MFX_IOPATTERN_OUT_OPAQUE_MEMORY; else if (frames_hwctx->frame_type & MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET) iopattern = MFX_IOPATTERN_OUT_VIDEO_MEMORY; } frame_width = frames_hwctx->surfaces[0].Info.Width; frame_height = frames_hwctx->surfaces[0].Info.Height; } if (!iopattern) iopattern = MFX_IOPATTERN_OUT_SYSTEM_MEMORY; q->iopattern = iopattern; ret = qsv_init_session(avctx, q, session, avctx->hw_frames_ctx, avctx->hw_device_ctx); 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 = ff_qsv_profile_to_mfx(avctx->codec_id, avctx->profile); param.mfx.CodecLevel = avctx->level == FF_LEVEL_UNKNOWN ? MFX_LEVEL_UNKNOWN : avctx->level; param.mfx.FrameInfo.BitDepthLuma = desc->comp[0].depth; param.mfx.FrameInfo.BitDepthChroma = desc->comp[0].depth; param.mfx.FrameInfo.Shift = desc->comp[0].depth > 8; param.mfx.FrameInfo.FourCC = q->fourcc; param.mfx.FrameInfo.Width = frame_width; param.mfx.FrameInfo.Height = frame_height; param.mfx.FrameInfo.ChromaFormat = MFX_CHROMAFORMAT_YUV420; switch (avctx->field_order) { case AV_FIELD_PROGRESSIVE: param.mfx.FrameInfo.PicStruct = MFX_PICSTRUCT_PROGRESSIVE; break; case AV_FIELD_TT: param.mfx.FrameInfo.PicStruct = MFX_PICSTRUCT_FIELD_TFF; break; case AV_FIELD_BB: param.mfx.FrameInfo.PicStruct = MFX_PICSTRUCT_FIELD_BFF; break; default: param.mfx.FrameInfo.PicStruct = MFX_PICSTRUCT_UNKNOWN; break; } 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) return ff_qsv_print_error(avctx, ret, "Error initializing the MFX video decoder"); q->frame_info = param.mfx.FrameInfo; return 0; } static int alloc_frame(AVCodecContext *avctx, QSVContext *q, 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.Info = q->frame_info; frame->surface.Data.PitchLow = frame->frame->linesize[0]; frame->surface.Data.Y = frame->frame->data[0]; frame->surface.Data.UV = frame->frame->data[1]; } if (q->frames_ctx.mids) { ret = ff_qsv_find_surface_idx(&q->frames_ctx, frame); if (ret < 0) return ret; frame->surface.Data.MemId = &q->frames_ctx.mids[ret]; } frame->used = 1; return 0; } static void qsv_clear_unused_frames(QSVContext *q) { QSVFrame *cur = q->work_frames; while (cur) { if (cur->used && !cur->surface.Data.Locked && !cur->queued) { cur->used = 0; 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->used) { ret = alloc_frame(avctx, q, 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, q, frame); if (ret < 0) return ret; *surf = &frame->surface; return 0; } static QSVFrame *find_frame(QSVContext *q, mfxFrameSurface1 *surf) { QSVFrame *cur = q->work_frames; while (cur) { if (surf == &cur->surface) return cur; cur = cur->next; } return NULL; } static int qsv_decode(AVCodecContext *avctx, QSVContext *q, AVFrame *frame, int *got_frame, AVPacket *avpkt) { QSVFrame *out_frame; 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; } sync = av_mallocz(sizeof(*sync)); if (!sync) { av_freep(&sync); return AVERROR(ENOMEM); } do { ret = get_surface(avctx, q, &insurf); if (ret < 0) { av_freep(&sync); return ret; } ret = MFXVideoDECODE_DecodeFrameAsync(q->session, avpkt->size ? &bs : NULL, insurf, &outsurf, sync); if (ret == MFX_WRN_DEVICE_BUSY) av_usleep(500); } 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_freep(&sync); return ff_qsv_print_error(avctx, ret, "Error during QSV decoding."); } /* make sure we do not enter an infinite loop if the SDK * did not consume any data and did not return anything */ if (!*sync && !bs.DataOffset) { bs.DataOffset = avpkt->size; ++q->zero_consume_run; if (q->zero_consume_run > 1) ff_qsv_print_warning(avctx, ret, "A decode call did not consume any data"); } else { q->zero_consume_run = 0; } if (*sync) { QSVFrame *out_frame = find_frame(q, outsurf); if (!out_frame) { av_log(avctx, AV_LOG_ERROR, "The returned surface does not correspond to any frame\n"); av_freep(&sync); return AVERROR_BUG; } out_frame->queued = 1; av_fifo_generic_write(q->async_fifo, &out_frame, sizeof(out_frame), NULL); av_fifo_generic_write(q->async_fifo, &sync, sizeof(sync), NULL); } else { av_freep(&sync); } if (!av_fifo_space(q->async_fifo) || (!avpkt->size && av_fifo_size(q->async_fifo))) { AVFrame *src_frame; av_fifo_generic_read(q->async_fifo, &out_frame, sizeof(out_frame), NULL); av_fifo_generic_read(q->async_fifo, &sync, sizeof(sync), NULL); out_frame->queued = 0; if (avctx->pix_fmt != AV_PIX_FMT_QSV) { do { ret = MFXVideoCORE_SyncOperation(q->session, *sync, 1000); } while (ret == MFX_WRN_IN_EXECUTION); } av_freep(&sync); src_frame = out_frame->frame; ret = av_frame_ref(frame, src_frame); if (ret < 0) return ret; outsurf = &out_frame->surface; #if FF_API_PKT_PTS FF_DISABLE_DEPRECATION_WARNINGS frame->pkt_pts = outsurf->Data.TimeStamp; FF_ENABLE_DEPRECATION_WARNINGS #endif 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); /* update the surface properties */ if (avctx->pix_fmt == AV_PIX_FMT_QSV) ((mfxFrameSurface1*)frame->data[3])->Info = outsurf->Info; *got_frame = 1; } return bs.DataOffset; } int ff_qsv_decode_close(QSVContext *q) { QSVFrame *cur = q->work_frames; if (q->session) MFXVideoDECODE_Close(q->session); while (q->async_fifo && av_fifo_size(q->async_fifo)) { QSVFrame *out_frame; mfxSyncPoint *sync; av_fifo_generic_read(q->async_fifo, &out_frame, sizeof(out_frame), NULL); av_fifo_generic_read(q->async_fifo, &sync, sizeof(sync), NULL); av_freep(&sync); } while (cur) { q->work_frames = cur->next; av_frame_free(&cur->frame); av_freep(&cur); cur = q->work_frames; } av_fifo_free(q->async_fifo); q->async_fifo = NULL; av_parser_close(q->parser); avcodec_free_context(&q->avctx_internal); if (q->internal_session) MFXClose(q->internal_session); av_buffer_unref(&q->frames_ctx.hw_frames_ctx); av_buffer_unref(&q->frames_ctx.mids_buf); return 0; } int ff_qsv_process_data(AVCodecContext *avctx, QSVContext *q, AVFrame *frame, int *got_frame, AVPacket *pkt) { uint8_t *dummy_data; int dummy_size; int ret; if (!q->avctx_internal) { q->avctx_internal = avcodec_alloc_context3(NULL); if (!q->avctx_internal) return AVERROR(ENOMEM); q->parser = av_parser_init(avctx->codec_id); if (!q->parser) return AVERROR(ENOMEM); q->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES; q->orig_pix_fmt = AV_PIX_FMT_NONE; } if (!pkt->size) return qsv_decode(avctx, q, frame, got_frame, pkt); /* we assume the packets are already split properly and want * just the codec parameters here */ av_parser_parse2(q->parser, q->avctx_internal, &dummy_data, &dummy_size, pkt->data, pkt->size, pkt->pts, pkt->dts, pkt->pos); /* TODO: flush delayed frames on reinit */ if (q->parser->format != q->orig_pix_fmt || q->parser->coded_width != avctx->coded_width || q->parser->coded_height != avctx->coded_height) { enum AVPixelFormat pix_fmts[3] = { AV_PIX_FMT_QSV, AV_PIX_FMT_NONE, AV_PIX_FMT_NONE }; enum AVPixelFormat qsv_format; qsv_format = ff_qsv_map_pixfmt(q->parser->format, &q->fourcc); if (qsv_format < 0) { av_log(avctx, AV_LOG_ERROR, "Decoding pixel format '%s' is not supported\n", av_get_pix_fmt_name(q->parser->format)); ret = AVERROR(ENOSYS); goto reinit_fail; } q->orig_pix_fmt = q->parser->format; avctx->pix_fmt = pix_fmts[1] = qsv_format; avctx->width = q->parser->width; avctx->height = q->parser->height; avctx->coded_width = q->parser->coded_width; avctx->coded_height = q->parser->coded_height; avctx->field_order = q->parser->field_order; avctx->level = q->avctx_internal->level; avctx->profile = q->avctx_internal->profile; ret = ff_get_format(avctx, pix_fmts); if (ret < 0) goto reinit_fail; avctx->pix_fmt = ret; ret = qsv_decode_init(avctx, q); if (ret < 0) goto reinit_fail; } return qsv_decode(avctx, q, frame, got_frame, pkt); reinit_fail: q->orig_pix_fmt = q->parser->format = avctx->pix_fmt = AV_PIX_FMT_NONE; return ret; } void ff_qsv_decode_flush(AVCodecContext *avctx, QSVContext *q) { q->orig_pix_fmt = AV_PIX_FMT_NONE; }