> From: ffmpeg-devel [mailto:ffmpeg-devel-boun...@ffmpeg.org] On Behalf > Of Li, Zhong > Sent: Thursday, August 15, 2019 3:43 PM > To: FFmpeg development discussions and patches > <ffmpeg-devel@ffmpeg.org> > Cc: Rogozhkin, Dmitry V <dmitry.v.rogozh...@intel.com> > Subject: Re: [FFmpeg-devel] [PATCH 3/6] lavc/qsvdec: Replace current parser > with MFXVideoDECODE_DecodeHeader() > > > From: ffmpeg-devel [mailto:ffmpeg-devel-boun...@ffmpeg.org] On > Behalf > > Of Zhong Li > > Sent: Tuesday, August 13, 2019 2:11 PM > > To: ffmpeg-devel@ffmpeg.org > > Cc: Li, Zhong <zhong...@intel.com>; Rogozhkin, Dmitry V > > <dmitry.v.rogozh...@intel.com> > > Subject: [FFmpeg-devel] [PATCH 3/6] lavc/qsvdec: Replace current > > parser with MFXVideoDECODE_DecodeHeader() > > > > Using MSDK parser can improve qsv decoder pass rate in some cases (E.g: > > sps declares a wrong level_idc, smaller than it should be). > > And it is necessary for adding new qsv decoders such as MJPEG and VP9 > > since current parser can't provide enough information. > > Actually using MFXVideoDECODE_DecodeHeader() was disscussed at > > https://ffmpeg.org/pipermail/ffmpeg-devel/2015-July/175734.html and > > merged as commit 1acb19d, but was overwritten when merged libav > > patches > > (commit: 1f26a23) without any explain. > > > > Split decode header from decode_init, and call it for everyframe to > > detect format/resoultion change. It can fix some regression issues > > such as hevc 10bits decoding. > > > > Signed-off-by: Zhong Li <zhong...@intel.com> > > Signed-off-by: Dmitry Rogozhkin <dmitry.v.rogozh...@intel.com> > > --- > > libavcodec/qsvdec.c | 184 > > ++++++++++++++++++++++++---------------------- > > libavcodec/qsvdec.h | 2 + > > libavcodec/qsvdec_h2645.c | 1 + > > libavcodec/qsvdec_other.c | 1 + > > 4 files changed, 100 insertions(+), 88 deletions(-) > > > > diff --git a/libavcodec/qsvdec.c b/libavcodec/qsvdec.c index > > 46aa2d6..7e48c83 100644 > > --- a/libavcodec/qsvdec.c > > +++ b/libavcodec/qsvdec.c > > @@ -147,19 +147,21 @@ static int check_dec_param(AVCodecContext > > *avctx, QSVContext *q, mfxVideoParam * > > return 1; > > } > > > > -static int qsv_decode_init(AVCodecContext *avctx, QSVContext *q) > > +static int qsv_decode_preinit(AVCodecContext *avctx, QSVContext *q, > > +enum AVPixelFormat pix_fmt, mfxVideoParam *param) > > { > > - 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; > > + enum AVPixelFormat pix_fmts[3] = { > > + AV_PIX_FMT_QSV, /* opaque format in case of video memory > > output */ > > + pix_fmt, /* system memory format obtained from > > bitstream parser */ > > + AV_PIX_FMT_NONE }; > > > > - desc = av_pix_fmt_desc_get(avctx->sw_pix_fmt); > > - if (!desc) > > - return AVERROR_BUG; > > + ret = ff_get_format(avctx, pix_fmts); > > + if (ret < 0) { > > + q->orig_pix_fmt = avctx->pix_fmt = AV_PIX_FMT_NONE; > > + return ret; > > + } > > > > if (!q->async_fifo) { > > q->async_fifo = av_fifo_alloc(q->async_depth * > > qsv_fifo_item_size()); @@ -197,54 +199,72 @@ static int > > qsv_decode_init(AVCodecContext *avctx, QSVContext *q) > > return ret; > > } > > > > - ret = ff_qsv_codec_id_to_mfx(avctx->codec_id); > > - if (ret < 0) > > - return ret; > > + param->IOPattern = q->iopattern; > > + param->AsyncDepth = q->async_depth; > > + param->ExtParam = q->ext_buffers; > > + param->NumExtParam = q->nb_ext_buffers; > > > > - param.mfx.CodecId = ret; > > - param.mfx.CodecProfile = ff_qsv_profile_to_mfx(avctx->codec_id, > > avctx->profile); > > - param.mfx.CodecLevel = ff_qsv_level_to_mfx(avctx->codec_id, > > 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; > > - } > > + return 0; > > + } > > > > - param.IOPattern = q->iopattern; > > - param.AsyncDepth = q->async_depth; > > - param.ExtParam = q->ext_buffers; > > - param.NumExtParam = q->nb_ext_buffers; > > +static int qsv_decode_init(AVCodecContext *avctx, QSVContext *q, > > +mfxVideoParam *param) { > > + int ret; > > > > - if (!check_dec_param(avctx, q, ¶m)) { > > - //Just give a warning instead of an error since it is still > decodable > > possibly. > > - av_log(avctx, AV_LOG_WARNING, > > - "Current input bitstream is not supported by QSV > > decoder.\n"); > > - } > > + avctx->width = param->mfx.FrameInfo.CropW; > > + avctx->height = param->mfx.FrameInfo.CropH; > > + avctx->coded_width = param->mfx.FrameInfo.Width; > > + avctx->coded_height = param->mfx.FrameInfo.Height; > > + avctx->level = param->mfx.CodecLevel; > > + avctx->profile = param->mfx.CodecProfile; > > + avctx->field_order = > > ff_qsv_map_picstruct(param->mfx.FrameInfo.PicStruct); > > + avctx->pix_fmt = > > ff_qsv_map_fourcc(param->mfx.FrameInfo.FourCC); > > > > - ret = MFXVideoDECODE_Init(q->session, ¶m); > > + ret = MFXVideoDECODE_Init(q->session, param); > > if (ret < 0) > > return ff_qsv_print_error(avctx, ret, > > "Error initializing the MFX > video > > decoder"); > > > > - q->frame_info = param.mfx.FrameInfo; > > + q->frame_info = param->mfx.FrameInfo; > > + > > + return 0; > > +} > > + > > +static int qsv_decode_header(AVCodecContext *avctx, QSVContext *q, > > +AVPacket *avpkt, enum AVPixelFormat pix_fmt, mfxVideoParam *param) > { > > + int ret; > > + > > + mfxBitstream bs = { 0 }; > > + > > + if (avpkt->size) { > > + bs.Data = avpkt->data; > > + bs.DataLength = avpkt->size; > > + bs.MaxLength = bs.DataLength; > > + bs.TimeStamp = avpkt->pts; > > + if (avctx->field_order == AV_FIELD_PROGRESSIVE) > > + bs.DataFlag |= MFX_BITSTREAM_COMPLETE_FRAME; > > + } else > > + return AVERROR_INVALIDDATA; > > + > > + > > + if(!q->session) { > > + ret = qsv_decode_preinit(avctx, q, pix_fmt, param); > > + if (ret < 0) > > + return ret; > > + } > > + > > + ret = ff_qsv_codec_id_to_mfx(avctx->codec_id); > > + if (ret < 0) > > + return ret; > > + > > + param->mfx.CodecId = ret; > > + ret = MFXVideoDECODE_DecodeHeader(q->session, &bs, param); > > + if (MFX_ERR_MORE_DATA == ret) { > > + return AVERROR(EAGAIN); > > + } > > + if (ret < 0) > > + return ff_qsv_print_error(avctx, ret, > > + "Error decoding stream header"); > > > > return 0; > > } > > @@ -527,7 +547,8 @@ int ff_qsv_process_data(AVCodecContext *avctx, > > QSVContext *q, > > uint8_t *dummy_data; > > int dummy_size; > > int ret; > > - const AVPixFmtDescriptor *desc; > > + mfxVideoParam param = { 0 }; > > + enum AVPixelFormat pix_fmt = AV_PIX_FMT_NV12; > > > > if (!q->avctx_internal) { > > q->avctx_internal = avcodec_alloc_context3(NULL); @@ > -541,7 > > +562,6 @@ int ff_qsv_process_data(AVCodecContext *avctx, QSVContext > > *q, > > return AVERROR(ENOMEM); > > > > q->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES; > > - q->orig_pix_fmt = AV_PIX_FMT_NONE; > > } > > > > if (!pkt->size) > > @@ -554,15 +574,23 @@ int ff_qsv_process_data(AVCodecContext > *avctx, > > QSVContext *q, > > pkt->data, pkt->size, pkt->pts, pkt->dts, > > pkt->pos); > > > > - avctx->field_order = q->parser->field_order; > > /* TODO: flush delayed frames on reinit */ > > - if (q->parser->format != q->orig_pix_fmt || > > - FFALIGN(q->parser->coded_width, 16) != > > FFALIGN(avctx->coded_width, 16) || > > - FFALIGN(q->parser->coded_height, 16) != > > FFALIGN(avctx->coded_height, 16)) { > > - enum AVPixelFormat pix_fmts[3] = { AV_PIX_FMT_QSV, > > - AV_PIX_FMT_NONE, > > - > AV_PIX_FMT_NONE }; > > - enum AVPixelFormat qsv_format; > > + > > + // sw_pix_fmt, coded_width/height should be set for > ff_get_format(), > > + // assume sw_pix_fmt is NV12 and coded_width/height to be > > 1280x720, > > + // the assumption may be not corret but will be updated after > > + header > > decoded if not true. > > + if (q->orig_pix_fmt != AV_PIX_FMT_NONE) > > + pix_fmt = q->orig_pix_fmt; > > + if (!avctx->coded_width) > > + avctx->coded_width = 1280; > > + if (!avctx->coded_height) > > + avctx->coded_height = 720; > > + > > + ret = qsv_decode_header(avctx, q, pkt, pix_fmt, ¶m); > > + > > + if (ret >= 0 && (q->orig_pix_fmt != > > ff_qsv_map_fourcc(param.mfx.FrameInfo.FourCC) || > > + avctx->coded_width != param.mfx.FrameInfo.Width || > > + avctx->coded_height != param.mfx.FrameInfo.Height)) { > > AVPacket zero_pkt = {0}; > > > > if (q->buffered_count) { > > @@ -571,45 +599,24 @@ int ff_qsv_process_data(AVCodecContext > *avctx, > > QSVContext *q, > > q->buffered_count--; > > return qsv_decode(avctx, q, frame, got_frame, > &zero_pkt); > > } > > - > > q->reinit_flag = 0; > > > > - 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 = avctx->pix_fmt = pix_fmt = > > + ff_qsv_map_fourcc(param.mfx.FrameInfo.FourCC); > > > > - 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 = FFALIGN(q->parser->coded_width, 16); > > - avctx->coded_height = FFALIGN(q->parser->coded_height, 16); > > - avctx->level = q->avctx_internal->level; > > - avctx->profile = q->avctx_internal->profile; > > + avctx->coded_width = param.mfx.FrameInfo.Width; > > + avctx->coded_height = param.mfx.FrameInfo.Height; > > > > - ret = ff_get_format(avctx, pix_fmts); > > + ret = qsv_decode_preinit(avctx, q, pix_fmt, ¶m); > > if (ret < 0) > > goto reinit_fail; > > + q->initialized = 0; > > + } > > > > - avctx->pix_fmt = ret; > > - > > - desc = av_pix_fmt_desc_get(avctx->pix_fmt); > > - if (!desc) > > - goto reinit_fail; > > - > > - if (desc->comp[0].depth > 8) { > > - avctx->coded_width = FFALIGN(q->parser->coded_width, > > 32); > > - avctx->coded_height = FFALIGN(q->parser->coded_height, > > 32); > > - } > > - > > - ret = qsv_decode_init(avctx, q); > > + if (!q->initialized) { > > + ret = qsv_decode_init(avctx, q, ¶m); > > if (ret < 0) > > goto reinit_fail; > > + q->initialized = 1; > > } > > > > return qsv_decode(avctx, q, frame, got_frame, pkt); @@ -622,4 > > +629,5 @@ reinit_fail: > > void ff_qsv_decode_flush(AVCodecContext *avctx, QSVContext *q) { > > q->orig_pix_fmt = AV_PIX_FMT_NONE; > > + q->initialized = 0; > > } > > diff --git a/libavcodec/qsvdec.h b/libavcodec/qsvdec.h index > > 111536c..4812fb2 100644 > > --- a/libavcodec/qsvdec.h > > +++ b/libavcodec/qsvdec.h > > @@ -63,6 +63,8 @@ typedef struct QSVContext { > > uint32_t fourcc; > > mfxFrameInfo frame_info; > > > > + int initialized; > > + > > // options set by the caller > > int async_depth; > > int iopattern; > > diff --git a/libavcodec/qsvdec_h2645.c b/libavcodec/qsvdec_h2645.c > > index > > 9b49f55..eb1dc33 100644 > > --- a/libavcodec/qsvdec_h2645.c > > +++ b/libavcodec/qsvdec_h2645.c > > @@ -103,6 +103,7 @@ static av_cold int > qsv_decode_init(AVCodecContext > > *avctx) > > } > > } > > > > + s->qsv.orig_pix_fmt = AV_PIX_FMT_NV12; > > s->packet_fifo = av_fifo_alloc(sizeof(AVPacket)); > > if (!s->packet_fifo) { > > ret = AVERROR(ENOMEM); > > diff --git a/libavcodec/qsvdec_other.c b/libavcodec/qsvdec_other.c > > index > > 03251d2..a6f1b88 100644 > > --- a/libavcodec/qsvdec_other.c > > +++ b/libavcodec/qsvdec_other.c > > @@ -90,6 +90,7 @@ static av_cold int qsv_decode_init(AVCodecContext > > *avctx) > > } > > #endif > > > > + s->qsv.orig_pix_fmt = AV_PIX_FMT_NV12; > > s->packet_fifo = av_fifo_alloc(sizeof(AVPacket)); > > if (!s->packet_fifo) { > > ret = AVERROR(ENOMEM); > > -- > > 2.7.4 > > Ping for comments of this patch set.
Will apply soon if nobody against. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".