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author | Michael Niedermayer <michaelni@gmx.at> | 2015-02-19 20:52:29 +0100 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2015-02-19 21:12:04 +0100 |
commit | 841e9f431cf4b1be0b5c3932c289d405f34dfcc2 (patch) | |
tree | 6f7c1159a0ceff4a7287b6f9725dd0fbd4fafc96 /libavcodec/qsv.c | |
parent | 560eb7179a7c46ba277c9c120840816869a47a70 (diff) | |
parent | 4e08c821106fc1d6d358864abf0d8488b12f38c6 (diff) | |
download | ffmpeg-841e9f431cf4b1be0b5c3932c289d405f34dfcc2.tar.gz |
Merge commit '4e08c821106fc1d6d358864abf0d8488b12f38c6'
* commit '4e08c821106fc1d6d358864abf0d8488b12f38c6':
lavc: add an Intel libmfx-based H.264 decoder
Conflicts:
configure
libavcodec/Makefile
libavcodec/allcodecs.c
libavcodec/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/qsv.c')
-rw-r--r-- | libavcodec/qsv.c | 362 |
1 files changed, 362 insertions, 0 deletions
diff --git a/libavcodec/qsv.c b/libavcodec/qsv.c new file mode 100644 index 0000000000..2070d9986a --- /dev/null +++ b/libavcodec/qsv.c @@ -0,0 +1,362 @@ +/* + * 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" + +int ff_qsv_error(int mfx_err) +{ + switch (mfx_err) { + case MFX_ERR_NONE: + return 0; + case MFX_ERR_MEMORY_ALLOC: + case MFX_ERR_NOT_ENOUGH_BUFFER: + return AVERROR(ENOMEM); + case MFX_ERR_INVALID_HANDLE: + return AVERROR(EINVAL); + case MFX_ERR_DEVICE_FAILED: + case MFX_ERR_DEVICE_LOST: + case MFX_ERR_LOCK_MEMORY: + return AVERROR(EIO); + case MFX_ERR_NULL_PTR: + case MFX_ERR_UNDEFINED_BEHAVIOR: + case MFX_ERR_NOT_INITIALIZED: + return AVERROR_BUG; + case MFX_ERR_UNSUPPORTED: + case MFX_ERR_NOT_FOUND: + return AVERROR(ENOSYS); + case MFX_ERR_MORE_DATA: + case MFX_ERR_MORE_SURFACE: + case MFX_ERR_MORE_BITSTREAM: + return AVERROR(EAGAIN); + case MFX_ERR_INCOMPATIBLE_VIDEO_PARAM: + case MFX_ERR_INVALID_VIDEO_PARAM: + return AVERROR(EINVAL); + case MFX_ERR_ABORTED: + case MFX_ERR_UNKNOWN: + default: + return AVERROR_UNKNOWN; + } +} + +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 codec_id_to_mfx(enum AVCodecID codec_id) +{ + switch (codec_id) { + case AV_CODEC_ID_H264: + return MFX_CODEC_AVC; + case AV_CODEC_ID_MPEG1VIDEO: + case AV_CODEC_ID_MPEG2VIDEO: + return MFX_CODEC_MPEG2; + case AV_CODEC_ID_VC1: + return MFX_CODEC_VC1; + default: + break; + } + + return AVERROR(ENOSYS); +} + +static int qsv_init_session(AVCodecContext *avctx, QSVContext *q, mfxSession session) +{ + if (!session) { + if (!q->internal_session) { + mfxIMPL impl = MFX_IMPL_AUTO_ANY; + mfxVersion ver = { { QSV_VERSION_MINOR, QSV_VERSION_MAJOR } }; + + const char *desc; + int ret; + + ret = MFXInit(impl, &ver, &q->internal_session); + if (ret < 0) { + av_log(avctx, AV_LOG_ERROR, "Error initializing an internal MFX session\n"); + return ff_qsv_error(ret); + } + + MFXQueryIMPL(q->internal_session, &impl); + + if (impl & MFX_IMPL_SOFTWARE) + desc = "software"; + else if (impl & MFX_IMPL_HARDWARE) + desc = "hardware accelerated"; + else + desc = "unknown"; + + av_log(avctx, AV_LOG_VERBOSE, + "Initialized an internal MFX session using %s implementation\n", + desc); + } + + q->session = q->internal_session; + } else { + q->session = session; + } + + /* make sure the decoder is uninitialized */ + MFXVideoDECODE_Close(q->session); + + return 0; +} + +int ff_qsv_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 = 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_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; +} |