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FFmpeg/libavcodec/nvenc_h264.c

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  1. /*

  2.  * This file is part of Libav.

  3.  *

  4.  * Libav 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.  * Libav 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 Libav; 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. #include "libavutil/opt.h"

  21. 

  22. #include "avcodec.h"

  23. #include "internal.h"

  24. 

  25. #include "nvenc.h"

  26. 

  27. #define OFFSET(x) offsetof(NVENCContext, x)

  28. #define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM

  29. static const AVOption options[] = {

  30.     { "preset",   "Set the encoding preset",              OFFSET(preset),      AV_OPT_TYPE_INT,    { .i64 = PRESET_HQ }, PRESET_DEFAULT, PRESET_LOSSLESS_HP, VE, "preset" },

  31.     { "default",    "",                                   0,                   AV_OPT_TYPE_CONST,  { .i64 = PRESET_DEFAULT }, 0, 0, VE, "preset" },

  32.     { "hp",         "",                                   0,                   AV_OPT_TYPE_CONST,  { .i64 = PRESET_HP }, 0, 0, VE, "preset" },

  33.     { "hq",         "",                                   0,                   AV_OPT_TYPE_CONST,  { .i64 = PRESET_HQ }, 0, 0, VE, "preset" },

  34.     { "bd",         "",                                   0,                   AV_OPT_TYPE_CONST,  { .i64 = PRESET_BD }, 0, 0, VE, "preset" },

  35.     { "ll",         "low latency",                        0,                   AV_OPT_TYPE_CONST,  { .i64 = PRESET_LOW_LATENCY_DEFAULT }, 0, 0, VE, "preset" },

  36.     { "llhq",       "low latency hq",                     0,                   AV_OPT_TYPE_CONST,  { .i64 = PRESET_LOW_LATENCY_HQ }, 0, 0, VE, "preset" },

  37.     { "llhp",       "low latency hp",                     0,                   AV_OPT_TYPE_CONST,  { .i64 = PRESET_LOW_LATENCY_HP }, 0, 0, VE, "preset" },

  38.     { "lossless",   NULL,                                 0,                   AV_OPT_TYPE_CONST,  { .i64 = PRESET_LOSSLESS_DEFAULT }, 0, 0, VE, "preset" },

  39.     { "losslesshp", NULL,                                 0,                   AV_OPT_TYPE_CONST,  { .i64 = PRESET_LOSSLESS_HP }, 0, 0, VE, "preset" },

  40.     { "profile",  "Set the encoding profile",             OFFSET(profile),     AV_OPT_TYPE_INT,    { .i64 = NV_ENC_H264_PROFILE_HIGH }, NV_ENC_H264_PROFILE_BASELINE, NV_ENC_H264_PROFILE_CONSTRAINED_HIGH, VE, "profile" },

  41.     { "baseline", "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_H264_PROFILE_BASELINE },            0, 0, VE, "profile" },

  42.     { "main",     "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_H264_PROFILE_MAIN },                0, 0, VE, "profile" },

  43.     { "high",     "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_H264_PROFILE_HIGH },                0, 0, VE, "profile" },

  44.     { "high_444", "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_H264_PROFILE_HIGH_444 },            0, 0, VE, "profile" },

  45.     { "constrained_high", "",                             0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_H264_PROFILE_CONSTRAINED_HIGH },    0, 0, VE, "profile" },

  46.     { "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" },

  47.     { "1.0",      "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_LEVEL_H264_1 },  0, 0, VE,  "level" },

  48.     { "1.b",      "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_LEVEL_H264_1b }, 0, 0, VE,  "level" },

  49.     { "1.1",      "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_LEVEL_H264_11 }, 0, 0, VE,  "level" },

  50.     { "1.2",      "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_LEVEL_H264_12 }, 0, 0, VE,  "level" },

  51.     { "1.3",      "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_LEVEL_H264_13 }, 0, 0, VE,  "level" },

  52.     { "2.0",      "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_LEVEL_H264_2 },  0, 0, VE,  "level" },

  53.     { "2.1",      "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_LEVEL_H264_21 }, 0, 0, VE,  "level" },

  54.     { "2.2",      "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_LEVEL_H264_22 }, 0, 0, VE,  "level" },

  55.     { "3.0",      "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_LEVEL_H264_3 },  0, 0, VE,  "level" },

  56.     { "3.1",      "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_LEVEL_H264_31 }, 0, 0, VE,  "level" },

  57.     { "3.2",      "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_LEVEL_H264_32 }, 0, 0, VE,  "level" },

  58.     { "4.0",      "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_LEVEL_H264_4 },  0, 0, VE,  "level" },

  59.     { "4.1",      "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_LEVEL_H264_41 }, 0, 0, VE,  "level" },

  60.     { "4.2",      "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_LEVEL_H264_42 }, 0, 0, VE,  "level" },

  61.     { "5.0",      "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_LEVEL_H264_5 },  0, 0, VE,  "level" },

  62.     { "5.1",      "",                                     0,                   AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_LEVEL_H264_51 }, 0, 0, VE,  "level" },

  63.     { "rc",       "Override the preset rate-control",     OFFSET(rc),          AV_OPT_TYPE_INT,    { .i64 = -1 },                   -1, INT_MAX, VE, "rc" },

  64.     { "constqp",          "Constant QP mode",                                                            0, AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_PARAMS_RC_CONSTQP },              0, 0, VE, "rc" },

  65.     { "vbr",              "Variable bitrate mode",                                                       0, AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_PARAMS_RC_VBR },                  0, 0, VE, "rc" },

  66.     { "cbr",              "Constant bitrate mode",                                                       0, AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_PARAMS_RC_CBR },                  0, 0, VE, "rc" },

  67.     { "vbr_minqp",        "Variable bitrate mode with MinQP",                                            0, AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_PARAMS_RC_VBR_MINQP },            0, 0, VE, "rc" },

  68.     { "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" },

  69.     { "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" },

  70.     { "vbr_2pass",        "Multi-pass variable bitrate mode",                                            0, AV_OPT_TYPE_CONST,  { .i64 = NV_ENC_PARAMS_RC_2_PASS_VBR },           0, 0, VE, "rc" },

  71.     { "surfaces", "Number of concurrent surfaces",        OFFSET(nb_surfaces), AV_OPT_TYPE_INT,    { .i64 = 32 },                   0, INT_MAX, VE },

  72.     { "device",   "Select a specific NVENC device",       OFFSET(device),      AV_OPT_TYPE_INT,    { .i64 = -1 },                   -2, INT_MAX, VE, "device" },

  73.     { "any",      "Pick the first device available",      0,                   AV_OPT_TYPE_CONST,  { .i64 = ANY_DEVICE },           0, 0, VE, "device" },

  74.     { "list",     "List the available devices",           0,                   AV_OPT_TYPE_CONST,  { .i64 = LIST_DEVICES },         0, 0, VE, "device" },

  75.     { "async_depth", "Delay frame output by the given amount of frames", OFFSET(async_depth), AV_OPT_TYPE_INT, { .i64 = INT_MAX }, 0, INT_MAX, VE },

  76.     { "delay",       "Delay frame output by the given amount of frames", OFFSET(async_depth), AV_OPT_TYPE_INT, { .i64 = INT_MAX }, 0, INT_MAX, VE },

  77.     { NULL }

  78. };

  79. 

  80. static const AVClass nvenc_h264_class = {

  81.     .class_name = "nvenc_h264",

  82.     .item_name = av_default_item_name,

  83.     .option = options,

  84.     .version = LIBAVUTIL_VERSION_INT,

  85. };

  86. 

  87. static const AVCodecDefault defaults[] = {

  88.     { "b", "0" },

  89.     { "qmin", "-1" },

  90.     { "qmax", "-1" },

  91.     { "qdiff", "-1" },

  92.     { "qblur", "-1" },

  93.     { "qcomp", "-1" },

  94.     { NULL },

  95. };

  96. 

  97. AVCodec ff_h264_nvenc_encoder = {

  98.     .name           = "h264_nvenc",

  99.     .long_name      = NULL_IF_CONFIG_SMALL("NVIDIA NVENC H.264 encoder"),

  100.     .type           = AVMEDIA_TYPE_VIDEO,

  101.     .id             = AV_CODEC_ID_H264,

  102.     .init           = ff_nvenc_encode_init,

  103.     .encode2        = ff_nvenc_encode_frame,

  104.     .close          = ff_nvenc_encode_close,

  105.     .priv_data_size = sizeof(NVENCContext),

  106.     .priv_class     = &nvenc_h264_class,

  107.     .defaults       = defaults,

  108.     .capabilities   = AV_CODEC_CAP_DELAY,

  109.     .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,

  110.     .pix_fmts       = ff_nvenc_pix_fmts,

  111. };

  112. 

  113. #if FF_API_NVENC_OLD_NAME

  114. 

  115. static int nvenc_old_init(AVCodecContext *avctx)

  116. {

  117.     av_log(avctx, AV_LOG_WARNING, "This encoder is deprecated, use 'h264_nvenc' instead\n");

  118.     return ff_nvenc_encode_init(avctx);

  119. }

  120. 

  121. static const AVClass nvenc_h264_old_class = {

  122.     .class_name = "nvenc_h264",

  123.     .item_name = av_default_item_name,

  124.     .option = options,

  125.     .version = LIBAVUTIL_VERSION_INT,

  126. };

  127. 

  128. AVCodec ff_nvenc_h264_encoder = {

  129.     .name           = "nvenc_h264",

  130.     .long_name      = NULL_IF_CONFIG_SMALL("NVIDIA NVENC H.264 encoder"),

  131.     .type           = AVMEDIA_TYPE_VIDEO,

  132.     .id             = AV_CODEC_ID_H264,

  133.     .init           = nvenc_old_init,

  134.     .encode2        = ff_nvenc_encode_frame,

  135.     .close          = ff_nvenc_encode_close,

  136.     .priv_data_size = sizeof(NVENCContext),

  137.     .priv_class     = &nvenc_h264_old_class,

  138.     .defaults       = defaults,

  139.     .capabilities   = AV_CODEC_CAP_DELAY,

  140.     .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,

  141.     .pix_fmts       = ff_nvenc_pix_fmts,

  142. };

  143. #endif