1/* 2 * Intel MediaSDK QSV based H.264 encoder 3 * 4 * copyright (c) 2013 Yukinori Yamazoe 5 * 6 * This file is part of FFmpeg. 7 * 8 * FFmpeg is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Lesser General Public 10 * License as published by the Free Software Foundation; either 11 * version 2.1 of the License, or (at your option) any later version. 12 * 13 * FFmpeg is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Lesser General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public 19 * License along with FFmpeg; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 21 */ 22 23 24#include <stdint.h> 25#include <sys/types.h> 26 27#include <mfx/mfxvideo.h> 28 29#include "libavutil/common.h" 30#include "libavutil/opt.h" 31 32#include "avcodec.h" 33#include "codec_internal.h" 34#include "qsv.h" 35#include "qsv_internal.h" 36#include "qsvenc.h" 37#include "atsc_a53.h" 38 39typedef struct QSVH264EncContext { 40 AVClass *class; 41 QSVEncContext qsv; 42} QSVH264EncContext; 43 44static int qsv_h264_set_encode_ctrl(AVCodecContext *avctx, 45 const AVFrame *frame, mfxEncodeCtrl* enc_ctrl) 46{ 47 QSVH264EncContext *qh264 = avctx->priv_data; 48 QSVEncContext *q = &qh264->qsv; 49 50 if (q->a53_cc && frame) { 51 mfxPayload* payload; 52 mfxU8* sei_data; 53 size_t sei_size; 54 int res; 55 56 res = ff_alloc_a53_sei(frame, sizeof(mfxPayload) + 2, (void**)&payload, &sei_size); 57 if (res < 0 || !payload) 58 return res; 59 60 sei_data = (mfxU8*)(payload + 1); 61 // SEI header 62 sei_data[0] = 4; 63 sei_data[1] = (mfxU8)sei_size; // size of SEI data 64 // SEI data filled in by ff_alloc_a53_sei 65 66 payload->BufSize = sei_size + 2; 67 payload->NumBit = payload->BufSize * 8; 68 payload->Type = 4; 69 payload->Data = sei_data; 70 71 enc_ctrl->NumExtParam = 0; 72 enc_ctrl->NumPayload = 1; 73 enc_ctrl->Payload[0] = payload; 74 } 75 return 0; 76} 77 78static av_cold int qsv_enc_init(AVCodecContext *avctx) 79{ 80 QSVH264EncContext *q = avctx->priv_data; 81 82 q->qsv.set_encode_ctrl_cb = qsv_h264_set_encode_ctrl; 83 return ff_qsv_enc_init(avctx, &q->qsv); 84} 85 86static int qsv_enc_frame(AVCodecContext *avctx, AVPacket *pkt, 87 const AVFrame *frame, int *got_packet) 88{ 89 QSVH264EncContext *q = avctx->priv_data; 90 91 return ff_qsv_encode(avctx, &q->qsv, pkt, frame, got_packet); 92} 93 94static av_cold int qsv_enc_close(AVCodecContext *avctx) 95{ 96 QSVH264EncContext *q = avctx->priv_data; 97 98 return ff_qsv_enc_close(avctx, &q->qsv); 99} 100 101#define OFFSET(x) offsetof(QSVH264EncContext, x) 102#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM 103static const AVOption options[] = { 104 QSV_COMMON_OPTS 105 QSV_OPTION_RDO 106 QSV_OPTION_MAX_FRAME_SIZE 107 QSV_OPTION_MAX_SLICE_SIZE 108 QSV_OPTION_BITRATE_LIMIT 109 QSV_OPTION_MBBRC 110 QSV_OPTION_EXTBRC 111 QSV_OPTION_ADAPTIVE_I 112 QSV_OPTION_ADAPTIVE_B 113 QSV_OPTION_P_STRATEGY 114 QSV_OPTION_B_STRATEGY 115 QSV_OPTION_DBLK_IDC 116 QSV_OPTION_LOW_DELAY_BRC 117 QSV_OPTION_MAX_MIN_QP 118 119 { "cavlc", "Enable CAVLC", OFFSET(qsv.cavlc), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, 120#if QSV_HAVE_VCM 121 { "vcm", "Use the video conferencing mode ratecontrol", OFFSET(qsv.vcm), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, 122#endif 123 { "idr_interval", "Distance (in I-frames) between IDR frames", OFFSET(qsv.idr_interval), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE }, 124 { "pic_timing_sei", "Insert picture timing SEI with pic_struct_syntax element", OFFSET(qsv.pic_timing_sei), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, VE }, 125 { "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 }, 126 { "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 }, 127 128 { "look_ahead", "Use VBR algorithm with look ahead", OFFSET(qsv.look_ahead), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, 129 { "look_ahead_depth", "Depth of look ahead in number frames", OFFSET(qsv.look_ahead_depth), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 100, VE }, 130 { "look_ahead_downsampling", "Downscaling factor for the frames saved for the lookahead analysis", OFFSET(qsv.look_ahead_downsampling), 131 AV_OPT_TYPE_INT, { .i64 = MFX_LOOKAHEAD_DS_UNKNOWN }, MFX_LOOKAHEAD_DS_UNKNOWN, MFX_LOOKAHEAD_DS_4x, VE, "look_ahead_downsampling" }, 132 { "unknown" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_LOOKAHEAD_DS_UNKNOWN }, INT_MIN, INT_MAX, VE, "look_ahead_downsampling" }, 133 { "auto" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_LOOKAHEAD_DS_UNKNOWN }, INT_MIN, INT_MAX, VE, "look_ahead_downsampling" }, 134 { "off" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_LOOKAHEAD_DS_OFF }, INT_MIN, INT_MAX, VE, "look_ahead_downsampling" }, 135 { "2x" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_LOOKAHEAD_DS_2x }, INT_MIN, INT_MAX, VE, "look_ahead_downsampling" }, 136 { "4x" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_LOOKAHEAD_DS_4x }, INT_MIN, INT_MAX, VE, "look_ahead_downsampling" }, 137 138 { "int_ref_type", "Intra refresh type. B frames should be set to 0.", OFFSET(qsv.int_ref_type), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, UINT16_MAX, VE, "int_ref_type" }, 139 { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, .flags = VE, "int_ref_type" }, 140 { "vertical", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, .flags = VE, "int_ref_type" }, 141 { "horizontal", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 2 }, .flags = VE, "int_ref_type" }, 142 { "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 }, 143 { "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 }, 144 { "recovery_point_sei", "Insert recovery point SEI messages", OFFSET(qsv.recovery_point_sei), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE }, 145 { "int_ref_cycle_dist", "Distance between the beginnings of the intra-refresh cycles in frames", OFFSET(qsv.int_ref_cycle_dist), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT16_MAX, VE }, 146 { "profile", NULL, OFFSET(qsv.profile), AV_OPT_TYPE_INT, { .i64 = MFX_PROFILE_UNKNOWN }, 0, INT_MAX, VE, "profile" }, 147 { "unknown" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, VE, "profile" }, 148 { "baseline", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_AVC_BASELINE }, INT_MIN, INT_MAX, VE, "profile" }, 149 { "main" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_AVC_MAIN }, INT_MIN, INT_MAX, VE, "profile" }, 150 { "high" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_AVC_HIGH }, INT_MIN, INT_MAX, VE, "profile" }, 151 152 { "a53cc" , "Use A53 Closed Captions (if available)", OFFSET(qsv.a53_cc), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, VE}, 153 154 { "aud", "Insert the Access Unit Delimiter NAL", OFFSET(qsv.aud), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE}, 155 156#if QSV_HAVE_MF 157 { "mfmode", "Multi-Frame Mode", OFFSET(qsv.mfmode), AV_OPT_TYPE_INT, { .i64 = MFX_MF_AUTO }, MFX_MF_DEFAULT, MFX_MF_AUTO, VE, "mfmode"}, 158 { "off" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_MF_DISABLED }, INT_MIN, INT_MAX, VE, "mfmode" }, 159 { "auto" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_MF_AUTO }, INT_MIN, INT_MAX, VE, "mfmode" }, 160#endif 161 162 { "repeat_pps", "repeat pps for every frame", OFFSET(qsv.repeat_pps), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, 163 164 { NULL }, 165}; 166 167static const AVClass class = { 168 .class_name = "h264_qsv encoder", 169 .item_name = av_default_item_name, 170 .option = options, 171 .version = LIBAVUTIL_VERSION_INT, 172}; 173 174static const FFCodecDefault qsv_enc_defaults[] = { 175 { "b", "1M" }, 176 { "refs", "0" }, 177 // same as the x264 default 178 { "g", "250" }, 179 { "bf", "3" }, 180 { "qmin", "-1" }, 181 { "qmax", "-1" }, 182 { "trellis", "-1" }, 183 { "flags", "+cgop" }, 184 { NULL }, 185}; 186 187const FFCodec ff_h264_qsv_encoder = { 188 .p.name = "h264_qsv", 189 .p.long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (Intel Quick Sync Video acceleration)"), 190 .priv_data_size = sizeof(QSVH264EncContext), 191 .p.type = AVMEDIA_TYPE_VIDEO, 192 .p.id = AV_CODEC_ID_H264, 193 .init = qsv_enc_init, 194 FF_CODEC_ENCODE_CB(qsv_enc_frame), 195 .close = qsv_enc_close, 196 .p.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_HYBRID, 197 .p.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12, 198 AV_PIX_FMT_P010, 199 AV_PIX_FMT_QSV, 200 AV_PIX_FMT_NONE }, 201 .p.priv_class = &class, 202 .defaults = qsv_enc_defaults, 203 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, 204 .p.wrapper_name = "qsv", 205 .hw_configs = ff_qsv_enc_hw_configs, 206}; 207