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https://github.com/FFmpeg/FFmpeg.git
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e716323fa8
Add VDENC(lowpower mode) support for QSV h264 and HEVC It's an experimental function(like lowpower in vaapi) with some limitations: - CBR/VBR require HuC which should be explicitly loaded via i915 module parameter(i915.enable_guc=2 for linux kerner version >= 4.16) - HEVC VDENC was supported >= ICE LAKE use option "-low_power 1" to enable VDENC. Signed-off-by: Linjie Fu <linjie.fu@intel.com>
156 lines
6.9 KiB
C
156 lines
6.9 KiB
C
/*
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* Intel MediaSDK QSV based H.264 enccoder
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*
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* copyright (c) 2013 Yukinori Yamazoe
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdint.h>
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#include <sys/types.h>
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#include <mfx/mfxvideo.h>
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#include "libavutil/common.h"
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#include "libavutil/opt.h"
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#include "avcodec.h"
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#include "internal.h"
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#include "qsv.h"
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#include "qsv_internal.h"
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#include "qsvenc.h"
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typedef struct QSVH264EncContext {
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AVClass *class;
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QSVEncContext qsv;
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} QSVH264EncContext;
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static av_cold int qsv_enc_init(AVCodecContext *avctx)
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{
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QSVH264EncContext *q = avctx->priv_data;
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return ff_qsv_enc_init(avctx, &q->qsv);
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}
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static int qsv_enc_frame(AVCodecContext *avctx, AVPacket *pkt,
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const AVFrame *frame, int *got_packet)
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{
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QSVH264EncContext *q = avctx->priv_data;
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return ff_qsv_encode(avctx, &q->qsv, pkt, frame, got_packet);
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}
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static av_cold int qsv_enc_close(AVCodecContext *avctx)
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{
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QSVH264EncContext *q = avctx->priv_data;
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return ff_qsv_enc_close(avctx, &q->qsv);
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}
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#define OFFSET(x) offsetof(QSVH264EncContext, x)
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#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
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static const AVOption options[] = {
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QSV_COMMON_OPTS
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{ "cavlc", "Enable CAVLC", OFFSET(qsv.cavlc), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
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#if QSV_HAVE_VCM
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{ "vcm", "Use the video conferencing mode ratecontrol", OFFSET(qsv.vcm), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE },
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#endif
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{ "idr_interval", "Distance (in I-frames) between IDR frames", OFFSET(qsv.idr_interval), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
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{ "single_sei_nal_unit", "Put all the SEI messages into one NALU", OFFSET(qsv.single_sei_nal_unit), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
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{ "max_dec_frame_buffering", "Maximum number of frames buffered in the DPB", OFFSET(qsv.max_dec_frame_buffering), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, UINT16_MAX, VE },
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{ "int_ref_type", "Intra refresh type", OFFSET(qsv.int_ref_type), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, UINT16_MAX, VE, "int_ref_type" },
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{ "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, .flags = VE, "int_ref_type" },
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{ "vertical", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, .flags = VE, "int_ref_type" },
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{ "int_ref_cycle_size", "Number of frames in the intra refresh cycle", OFFSET(qsv.int_ref_cycle_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, UINT16_MAX, VE },
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{ "int_ref_qp_delta", "QP difference for the refresh MBs", OFFSET(qsv.int_ref_qp_delta), AV_OPT_TYPE_INT, { .i64 = INT16_MIN }, INT16_MIN, INT16_MAX, VE },
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{ "recovery_point_sei", "Insert recovery point SEI messages", OFFSET(qsv.recovery_point_sei), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
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{ "trellis", "Trellis quantization", OFFSET(qsv.trellis), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, 0, UINT_MAX, VE, "trellis" },
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{ "off", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TRELLIS_OFF }, .flags = VE, "trellis" },
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{ "I", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TRELLIS_I }, .flags = VE, "trellis" },
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{ "P", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TRELLIS_P }, .flags = VE, "trellis" },
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{ "B", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TRELLIS_B }, .flags = VE, "trellis" },
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{ "profile", NULL, OFFSET(qsv.profile), AV_OPT_TYPE_INT, { .i64 = MFX_PROFILE_UNKNOWN }, 0, INT_MAX, VE, "profile" },
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{ "unknown" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, VE, "profile" },
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{ "baseline", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_AVC_BASELINE }, INT_MIN, INT_MAX, VE, "profile" },
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{ "main" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_AVC_MAIN }, INT_MIN, INT_MAX, VE, "profile" },
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{ "high" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_AVC_HIGH }, INT_MIN, INT_MAX, VE, "profile" },
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{ "aud", "Insert the Access Unit Delimiter NAL", OFFSET(qsv.aud), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE},
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#if QSV_HAVE_MF
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{ "mfmode", "Multi-Frame Mode", OFFSET(qsv.mfmode), AV_OPT_TYPE_INT, { .i64 = MFX_MF_AUTO }, MFX_MF_DEFAULT, MFX_MF_AUTO, VE, "mfmode"},
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{ "off" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_MF_DISABLED }, INT_MIN, INT_MAX, VE, "mfmode" },
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{ "auto" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_MF_AUTO }, INT_MIN, INT_MAX, VE, "mfmode" },
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#endif
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#if QSV_HAVE_VDENC
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{ "low_power", "enable low power mode (experimental, many limitations by mfx version, HW platform, BRC modes, etc.", OFFSET(qsv.low_power), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, VE},
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#endif
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{ NULL },
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};
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static const AVClass class = {
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.class_name = "h264_qsv encoder",
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.item_name = av_default_item_name,
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.option = options,
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.version = LIBAVUTIL_VERSION_INT,
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};
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static const AVCodecDefault qsv_enc_defaults[] = {
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{ "b", "1M" },
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{ "refs", "0" },
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// same as the x264 default
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{ "g", "250" },
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{ "bf", "3" },
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{ "qmin", "-1" },
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{ "qmax", "-1" },
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#if FF_API_CODER_TYPE
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{ "coder", "-1" },
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#endif
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{ "flags", "+cgop" },
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#if FF_API_PRIVATE_OPT
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{ "b_strategy", "-1" },
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#endif
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{ NULL },
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};
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AVCodec ff_h264_qsv_encoder = {
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.name = "h264_qsv",
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.long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (Intel Quick Sync Video acceleration)"),
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.priv_data_size = sizeof(QSVH264EncContext),
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.type = AVMEDIA_TYPE_VIDEO,
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.id = AV_CODEC_ID_H264,
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.init = qsv_enc_init,
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.encode2 = qsv_enc_frame,
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.close = qsv_enc_close,
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.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HYBRID,
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.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
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AV_PIX_FMT_P010,
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AV_PIX_FMT_QSV,
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AV_PIX_FMT_NONE },
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.priv_class = &class,
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.defaults = qsv_enc_defaults,
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.caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
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.wrapper_name = "qsv",
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};
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