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nvenc_h264.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include "libavutil/internal.h"
20 
21 #include "avcodec.h"
22 #include "internal.h"
23 
24 #include "nvenc.h"
25 
26 #define OFFSET(x) offsetof(NvencContext, x)
27 #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
28 static const AVOption options[] = {
29  { "preset", "Set the encoding preset", OFFSET(preset), AV_OPT_TYPE_INT, { .i64 = PRESET_MEDIUM }, PRESET_DEFAULT, PRESET_LOSSLESS_HP, VE, "preset" },
30  { "default", "", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_DEFAULT }, 0, 0, VE, "preset" },
31  { "slow", "hq 2 passes", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_SLOW }, 0, 0, VE, "preset" },
32  { "medium", "hq 1 pass", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_MEDIUM }, 0, 0, VE, "preset" },
33  { "fast", "hp 1 pass", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_FAST }, 0, 0, VE, "preset" },
34  { "hp", "", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_HP }, 0, 0, VE, "preset" },
35  { "hq", "", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_HQ }, 0, 0, VE, "preset" },
36  { "bd", "", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_BD }, 0, 0, VE, "preset" },
37  { "ll", "low latency", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_LOW_LATENCY_DEFAULT }, 0, 0, VE, "preset" },
38  { "llhq", "low latency hq", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_LOW_LATENCY_HQ }, 0, 0, VE, "preset" },
39  { "llhp", "low latency hp", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_LOW_LATENCY_HP }, 0, 0, VE, "preset" },
40  { "lossless", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_LOSSLESS_DEFAULT }, 0, 0, VE, "preset" },
41  { "losslesshp", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_LOSSLESS_HP }, 0, 0, VE, "preset" },
42  { "profile", "Set the encoding profile", OFFSET(profile), AV_OPT_TYPE_INT, { .i64 = NV_ENC_H264_PROFILE_MAIN }, NV_ENC_H264_PROFILE_BASELINE, NV_ENC_H264_PROFILE_HIGH_444P, VE, "profile" },
43  { "baseline", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_H264_PROFILE_BASELINE }, 0, 0, VE, "profile" },
44  { "main", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_H264_PROFILE_MAIN }, 0, 0, VE, "profile" },
45  { "high", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_H264_PROFILE_HIGH }, 0, 0, VE, "profile" },
46  { "high444p", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_H264_PROFILE_HIGH_444P }, 0, 0, VE, "profile" },
47  { "level", "Set the encoding level restriction", OFFSET(level), AV_OPT_TYPE_INT, { .i64 = NV_ENC_LEVEL_AUTOSELECT }, NV_ENC_LEVEL_AUTOSELECT, NV_ENC_LEVEL_H264_51, VE, "level" },
48  { "auto", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_AUTOSELECT }, 0, 0, VE, "level" },
49  { "1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_1 }, 0, 0, VE, "level" },
50  { "1.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_1 }, 0, 0, VE, "level" },
51  { "1b", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_1b }, 0, 0, VE, "level" },
52  { "1.0b", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_1b }, 0, 0, VE, "level" },
53  { "1.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_11 }, 0, 0, VE, "level" },
54  { "1.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_12 }, 0, 0, VE, "level" },
55  { "1.3", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_13 }, 0, 0, VE, "level" },
56  { "2", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_2 }, 0, 0, VE, "level" },
57  { "2.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_2 }, 0, 0, VE, "level" },
58  { "2.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_21 }, 0, 0, VE, "level" },
59  { "2.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_22 }, 0, 0, VE, "level" },
60  { "3", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_3 }, 0, 0, VE, "level" },
61  { "3.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_3 }, 0, 0, VE, "level" },
62  { "3.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_31 }, 0, 0, VE, "level" },
63  { "3.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_32 }, 0, 0, VE, "level" },
64  { "4", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_4 }, 0, 0, VE, "level" },
65  { "4.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_4 }, 0, 0, VE, "level" },
66  { "4.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_41 }, 0, 0, VE, "level" },
67  { "4.2", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_42 }, 0, 0, VE, "level" },
68  { "5", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_5 }, 0, 0, VE, "level" },
69  { "5.0", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_5 }, 0, 0, VE, "level" },
70  { "5.1", "", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_LEVEL_H264_51 }, 0, 0, VE, "level" },
71  { "rc", "Override the preset rate-control", OFFSET(rc), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, VE, "rc" },
72  { "constqp", "Constant QP mode", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_CONSTQP }, 0, 0, VE, "rc" },
73  { "vbr", "Variable bitrate mode", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_VBR }, 0, 0, VE, "rc" },
74  { "cbr", "Constant bitrate mode", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_CBR }, 0, 0, VE, "rc" },
75  { "vbr_minqp", "Variable bitrate mode with MinQP", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_VBR_MINQP }, 0, 0, VE, "rc" },
76  { "ll_2pass_quality", "Multi-pass optimized for image quality (only for low-latency presets)", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_2_PASS_QUALITY }, 0, 0, VE, "rc" },
77  { "ll_2pass_size", "Multi-pass optimized for constant frame size (only for low-latency presets)", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_2_PASS_FRAMESIZE_CAP }, 0, 0, VE, "rc" },
78  { "vbr_2pass", "Multi-pass variable bitrate mode", 0, AV_OPT_TYPE_CONST, { .i64 = NV_ENC_PARAMS_RC_2_PASS_VBR }, 0, 0, VE, "rc" },
79  { "surfaces", "Number of concurrent surfaces", OFFSET(nb_surfaces), AV_OPT_TYPE_INT, { .i64 = 32 }, 0, INT_MAX, VE },
80  { "cbr", "Use cbr encoding mode", OFFSET(cbr), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE },
81  { "2pass", "Use 2pass encoding mode", OFFSET(twopass), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, VE },
82  { "gpu", "Selects which NVENC capable GPU to use. First GPU is 0, second is 1, and so on.", OFFSET(device), AV_OPT_TYPE_INT, { .i64 = ANY_DEVICE }, -2, INT_MAX, VE, "gpu" },
83  { "any", "Pick the first device available", 0, AV_OPT_TYPE_CONST, { .i64 = ANY_DEVICE }, 0, 0, VE, "gpu" },
84  { "list", "List the available devices", 0, AV_OPT_TYPE_CONST, { .i64 = LIST_DEVICES }, 0, 0, VE, "gpu" },
85  { "delay", "Delay frame output by the given amount of frames", OFFSET(async_depth), AV_OPT_TYPE_INT, { .i64 = INT_MAX }, 0, INT_MAX, VE },
86  { NULL }
87 };
88 
89 static const AVCodecDefault defaults[] = {
90  { "b", "2M" },
91  { "qmin", "-1" },
92  { "qmax", "-1" },
93  { "qdiff", "-1" },
94  { "qblur", "-1" },
95  { "qcomp", "-1" },
96  { "g", "250" },
97  { "bf", "0" },
98  { NULL },
99 };
100 
101 #if FF_API_NVENC_OLD_NAME
102 
103 static av_cold int nvenc_old_init(AVCodecContext *avctx)
104 {
105  av_log(avctx, AV_LOG_WARNING, "This encoder is deprecated, use 'h264_nvenc' instead\n");
106  return ff_nvenc_encode_init(avctx);
107 }
108 
109 #if CONFIG_NVENC_ENCODER
110 static const AVClass nvenc_class = {
111  .class_name = "nvenc",
112  .item_name = av_default_item_name,
113  .option = options,
114  .version = LIBAVUTIL_VERSION_INT,
115 };
116 
117 AVCodec ff_nvenc_encoder = {
118  .name = "nvenc",
119  .long_name = NULL_IF_CONFIG_SMALL("NVIDIA NVENC H.264 encoder"),
120  .type = AVMEDIA_TYPE_VIDEO,
121  .id = AV_CODEC_ID_H264,
122  .init = nvenc_old_init,
123  .encode2 = ff_nvenc_encode_frame,
124  .close = ff_nvenc_encode_close,
125  .priv_data_size = sizeof(NvencContext),
126  .priv_class = &nvenc_class,
127  .defaults = defaults,
128  .capabilities = AV_CODEC_CAP_DELAY,
129  .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
130  .pix_fmts = ff_nvenc_pix_fmts,
131 };
132 #endif
133 
134 /* Add an alias for nvenc_h264 */
135 #if CONFIG_NVENC_H264_ENCODER
136 static const AVClass nvenc_h264_class = {
137  .class_name = "nvenc_h264",
138  .item_name = av_default_item_name,
139  .option = options,
140  .version = LIBAVUTIL_VERSION_INT,
141 };
142 
143 AVCodec ff_nvenc_h264_encoder = {
144  .name = "nvenc_h264",
145  .long_name = NULL_IF_CONFIG_SMALL("NVIDIA NVENC H.264 encoder"),
146  .type = AVMEDIA_TYPE_VIDEO,
147  .id = AV_CODEC_ID_H264,
148  .init = nvenc_old_init,
149  .encode2 = ff_nvenc_encode_frame,
150  .close = ff_nvenc_encode_close,
151  .priv_data_size = sizeof(NvencContext),
152  .priv_class = &nvenc_h264_class,
153  .defaults = defaults,
154  .capabilities = AV_CODEC_CAP_DELAY,
155  .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
156  .pix_fmts = ff_nvenc_pix_fmts,
157 };
158 #endif
159 
160 #endif
161 
162 static const AVClass h264_nvenc_class = {
163  .class_name = "h264_nvenc",
164  .item_name = av_default_item_name,
165  .option = options,
166  .version = LIBAVUTIL_VERSION_INT,
167 };
168 
169 AVCodec ff_h264_nvenc_encoder = {
170  .name = "h264_nvenc",
171  .long_name = NULL_IF_CONFIG_SMALL("NVIDIA NVENC H.264 encoder"),
172  .type = AVMEDIA_TYPE_VIDEO,
173  .id = AV_CODEC_ID_H264,
174  .init = ff_nvenc_encode_init,
175  .encode2 = ff_nvenc_encode_frame,
176  .close = ff_nvenc_encode_close,
177  .priv_data_size = sizeof(NvencContext),
178  .priv_class = &h264_nvenc_class,
179  .defaults = defaults,
180  .capabilities = AV_CODEC_CAP_DELAY,
181  .caps_internal = FF_CODEC_CAP_INIT_CLEANUP,
182  .pix_fmts = ff_nvenc_pix_fmts,
183 };
FF_CODEC_CAP_INIT_CLEANUP
#define FF_CODEC_CAP_INIT_CLEANUP
The codec allows calling the close function for deallocation even if the init function returned a fai...
Definition: internal.h:48
NULL
#define NULL
Definition: coverity.c:32
ff_nvenc_encode_close
av_cold int ff_nvenc_encode_close(AVCodecContext *avctx)
Definition: nvenc.c:1080
nvenc_old_init
static av_cold int nvenc_old_init(AVCodecContext *avctx)
Definition: nvenc_h264.c:103
AVOption
AVOption.
Definition: opt.h:245
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:70
AV_OPT_TYPE_INT
Definition: opt.h:223
h264_nvenc_class
static const AVClass h264_nvenc_class
Definition: nvenc_h264.c:162
AV_CODEC_ID_H264
Definition: avcodec.h:222
AVCodec
AVCodec.
Definition: avcodec.h:3542
defaults
static const AVCodecDefault defaults[]
Definition: nvenc_h264.c:89
AVClass::class_name
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
AV_CODEC_CAP_DELAY
#define AV_CODEC_CAP_DELAY
Encoder or decoder requires flushing with NULL input at the end in order to give the complete and cor...
Definition: avcodec.h:981
AV_OPT_TYPE_CONST
Definition: opt.h:231
av_cold
#define av_cold
Definition: attributes.h:82
ff_nvenc_pix_fmts
enum AVPixelFormat ff_nvenc_pix_fmts[]
Definition: nvenc.c:76
VE
#define VE
Definition: nvenc_h264.c:27
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
ff_h264_nvenc_encoder
AVCodec ff_h264_nvenc_encoder
Definition: nvenc_h264.c:169
av_default_item_name
av_default_item_name
Definition: libopenh264enc.c:68
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
AVCodec::name
const char * name
Name of the codec implementation.
Definition: avcodec.h:3549
internal.h
common internal API header
ff_nvenc_encode_init
av_cold int ff_nvenc_encode_init(AVCodecContext *avctx)
Definition: nvenc.c:1157
ff_nvenc_encode_frame
int ff_nvenc_encode_frame(AVCodecContext *avctx, AVPacket *pkt, const AVFrame *frame, int *got_packet)
Definition: nvenc.c:1583
AV_OPT_TYPE_BOOL
Definition: opt.h:239
avcodec.h
Libavcodec external API header.
AVCodecContext
main external API structure.
Definition: avcodec.h:1649
AVClass
Describe the class of an AVClass context structure.
Definition: log.h:67
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:262
profile
mfxU16 profile
Definition: qsvenc.c:42
level
uint8_t level
Definition: svq3.c:193
preset
preset
Definition: vf_curves.c:46
internal.h
common internal api header.
OFFSET
#define OFFSET(x)
Definition: nvenc_h264.c:26
options
static const AVOption options[]
Definition: nvenc_h264.c:28
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:193
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