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path: root/libavcodec/qsvenc_h264.c (plain)
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1/*
2 * Intel MediaSDK QSV based H.264 enccoder
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 "internal.h"
34#include "qsv.h"
35#include "qsv_internal.h"
36#include "qsvenc.h"
37
38typedef struct QSVH264EncContext {
39 AVClass *class;
40 QSVEncContext qsv;
41} QSVH264EncContext;
42
43static int qsv_h264_set_encode_ctrl(AVCodecContext *avctx,
44 const AVFrame *frame, mfxEncodeCtrl* enc_ctrl)
45{
46 QSVH264EncContext *qh264 = avctx->priv_data;
47 QSVEncContext *q = &qh264->qsv;
48
49 if (q->a53_cc && frame) {
50 mfxPayload* payload;
51 mfxU8* sei_data;
52 size_t sei_size;
53 int res;
54
55 res = ff_alloc_a53_sei(frame, sizeof(mfxPayload) + 2, (void**)&payload, &sei_size);
56 if (res < 0 || !payload)
57 return res;
58
59 sei_data = (mfxU8*)(payload + 1);
60 // SEI header
61 sei_data[0] = 4;
62 sei_data[1] = (mfxU8)sei_size; // size of SEI data
63 // SEI data filled in by ff_alloc_a53_sei
64
65 payload->BufSize = sei_size + 2;
66 payload->NumBit = payload->BufSize * 8;
67 payload->Type = 4;
68 payload->Data = sei_data;
69
70 enc_ctrl->NumExtParam = 0;
71 enc_ctrl->NumPayload = 1;
72 enc_ctrl->Payload[0] = payload;
73 }
74 return 0;
75}
76
77static av_cold int qsv_enc_init(AVCodecContext *avctx)
78{
79 QSVH264EncContext *q = avctx->priv_data;
80
81 q->qsv.set_encode_ctrl_cb = qsv_h264_set_encode_ctrl;
82 return ff_qsv_enc_init(avctx, &q->qsv);
83}
84
85static int qsv_enc_frame(AVCodecContext *avctx, AVPacket *pkt,
86 const AVFrame *frame, int *got_packet)
87{
88 QSVH264EncContext *q = avctx->priv_data;
89
90 return ff_qsv_encode(avctx, &q->qsv, pkt, frame, got_packet);
91}
92
93static av_cold int qsv_enc_close(AVCodecContext *avctx)
94{
95 QSVH264EncContext *q = avctx->priv_data;
96
97 return ff_qsv_enc_close(avctx, &q->qsv);
98}
99
100#define OFFSET(x) offsetof(QSVH264EncContext, x)
101#define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
102static const AVOption options[] = {
103 QSV_COMMON_OPTS
104
105 { "idr_interval", "Distance (in I-frames) between IDR frames", OFFSET(qsv.idr_interval), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VE },
106 { "pic_timing_sei", "Insert picture timing SEI with pic_struct_syntax element", OFFSET(qsv.pic_timing_sei), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, VE },
107 { "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 },
108 { "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 },
109
110#if QSV_HAVE_LA
111 { "look_ahead", "Use VBR algorithm with look ahead", OFFSET(qsv.look_ahead), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, VE },
112 { "look_ahead_depth", "Depth of look ahead in number frames", OFFSET(qsv.look_ahead_depth), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 100, VE },
113#endif
114#if QSV_HAVE_LA_DS
115 { "look_ahead_downsampling", NULL, OFFSET(qsv.look_ahead_downsampling), AV_OPT_TYPE_INT, { .i64 = MFX_LOOKAHEAD_DS_UNKNOWN }, MFX_LOOKAHEAD_DS_UNKNOWN, MFX_LOOKAHEAD_DS_2x, VE, "look_ahead_downsampling" },
116 { "unknown" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_LOOKAHEAD_DS_UNKNOWN }, INT_MIN, INT_MAX, VE, "look_ahead_downsampling" },
117 { "off" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_LOOKAHEAD_DS_OFF }, INT_MIN, INT_MAX, VE, "look_ahead_downsampling" },
118 { "2x" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_LOOKAHEAD_DS_2x }, INT_MIN, INT_MAX, VE, "look_ahead_downsampling" },
119#endif
120
121 { "int_ref_type", "Intra refresh type", OFFSET(qsv.int_ref_type), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, UINT16_MAX, VE, "int_ref_type" },
122 { "none", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 0 }, .flags = VE, "int_ref_type" },
123 { "vertical", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = 1 }, .flags = VE, "int_ref_type" },
124 { "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 },
125 { "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 },
126 { "recovery_point_sei", "Insert recovery point SEI messages", OFFSET(qsv.recovery_point_sei), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, VE },
127
128 { "trellis", "Trellis quantization", OFFSET(qsv.trellis), AV_OPT_TYPE_FLAGS, { .i64 = 0 }, 0, UINT_MAX, VE, "trellis" },
129 { "off", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TRELLIS_OFF }, .flags = VE, "trellis" },
130 { "I", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TRELLIS_I }, .flags = VE, "trellis" },
131 { "P", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TRELLIS_P }, .flags = VE, "trellis" },
132 { "B", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_TRELLIS_B }, .flags = VE, "trellis" },
133
134 { "profile", NULL, OFFSET(qsv.profile), AV_OPT_TYPE_INT, { .i64 = MFX_PROFILE_UNKNOWN }, 0, INT_MAX, VE, "profile" },
135 { "unknown" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_UNKNOWN }, INT_MIN, INT_MAX, VE, "profile" },
136 { "baseline", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_AVC_BASELINE }, INT_MIN, INT_MAX, VE, "profile" },
137 { "main" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_AVC_MAIN }, INT_MIN, INT_MAX, VE, "profile" },
138 { "high" , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = MFX_PROFILE_AVC_HIGH }, INT_MIN, INT_MAX, VE, "profile" },
139
140 { "a53cc" , "Use A53 Closed Captions (if available)", OFFSET(qsv.a53_cc), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, VE},
141 { NULL },
142};
143
144static const AVClass class = {
145 .class_name = "h264_qsv encoder",
146 .item_name = av_default_item_name,
147 .option = options,
148 .version = LIBAVUTIL_VERSION_INT,
149};
150
151static const AVCodecDefault qsv_enc_defaults[] = {
152 { "b", "1M" },
153 { "refs", "0" },
154 // same as the x264 default
155 { "g", "250" },
156 { "bf", "3" },
157 { "coder", "ac" },
158
159 { "flags", "+cgop" },
160#if FF_API_PRIVATE_OPT
161 { "b_strategy", "-1" },
162#endif
163 { NULL },
164};
165
166AVCodec ff_h264_qsv_encoder = {
167 .name = "h264_qsv",
168 .long_name = NULL_IF_CONFIG_SMALL("H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (Intel Quick Sync Video acceleration)"),
169 .priv_data_size = sizeof(QSVH264EncContext),
170 .type = AVMEDIA_TYPE_VIDEO,
171 .id = AV_CODEC_ID_H264,
172 .init = qsv_enc_init,
173 .encode2 = qsv_enc_frame,
174 .close = qsv_enc_close,
175 .capabilities = AV_CODEC_CAP_DELAY,
176 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_NV12,
177 AV_PIX_FMT_P010,
178 AV_PIX_FMT_QSV,
179 AV_PIX_FMT_NONE },
180 .priv_class = &class,
181 .defaults = qsv_enc_defaults,
182 .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
183};
184
generated by cgit at 2024-05-17 06:09:05 (GMT)