/*
* This file is part of Libav .
*
* Libav is free software ; you can redistribute it and / or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation ; either
* version 2.1 of the License , or ( at your option ) any later version .
*
* Libav is distributed in the hope that it will be useful ,
* but WITHOUT ANY WARRANTY ; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the GNU
* Lesser General Public License for more details .
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav ; if not , write to the Free Software
* Foundation , Inc . , 51 Franklin Street , Fifth Floor , Boston , MA 02110 - 1301 USA
*/
# include "libavutil/internal.h"
# include "libavutil/opt.h"
# include "avcodec.h"
# include "internal.h"
# include "nvenc.h"
# define OFFSET(x) offsetof(NVENCContext, x)
# define VE AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options [ ] = {
{ " preset " , " Set the encoding preset " , OFFSET ( preset ) , AV_OPT_TYPE_INT , { . i64 = PRESET_MEDIUM } , PRESET_DEFAULT , PRESET_LOSSLESS_HP , VE , " preset " } ,
{ " default " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = PRESET_DEFAULT } , 0 , 0 , VE , " preset " } ,
{ " slow " , " hq 2 passes " , 0 , AV_OPT_TYPE_CONST , { . i64 = PRESET_SLOW } , 0 , 0 , VE , " preset " } ,
{ " medium " , " hq 1 pass " , 0 , AV_OPT_TYPE_CONST , { . i64 = PRESET_MEDIUM } , 0 , 0 , VE , " preset " } ,
{ " fast " , " hp 1 pass " , 0 , AV_OPT_TYPE_CONST , { . i64 = PRESET_FAST } , 0 , 0 , VE , " preset " } ,
{ " hp " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = PRESET_HP } , 0 , 0 , VE , " preset " } ,
{ " hq " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = PRESET_HQ } , 0 , 0 , VE , " preset " } ,
{ " bd " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = PRESET_BD } , 0 , 0 , VE , " preset " } ,
{ " ll " , " low latency " , 0 , AV_OPT_TYPE_CONST , { . i64 = PRESET_LOW_LATENCY_DEFAULT } , 0 , 0 , VE , " preset " } ,
{ " llhq " , " low latency hq " , 0 , AV_OPT_TYPE_CONST , { . i64 = PRESET_LOW_LATENCY_HQ } , 0 , 0 , VE , " preset " } ,
{ " llhp " , " low latency hp " , 0 , AV_OPT_TYPE_CONST , { . i64 = PRESET_LOW_LATENCY_HP } , 0 , 0 , VE , " preset " } ,
{ " lossless " , NULL , 0 , AV_OPT_TYPE_CONST , { . i64 = PRESET_LOSSLESS_DEFAULT } , 0 , 0 , VE , " preset " } ,
{ " losslesshp " , NULL , 0 , AV_OPT_TYPE_CONST , { . i64 = PRESET_LOSSLESS_HP } , 0 , 0 , VE , " preset " } ,
{ " 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 " } ,
{ " baseline " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_H264_PROFILE_BASELINE } , 0 , 0 , VE , " profile " } ,
{ " main " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_H264_PROFILE_MAIN } , 0 , 0 , VE , " profile " } ,
{ " high " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_H264_PROFILE_HIGH } , 0 , 0 , VE , " profile " } ,
{ " high_444 " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_H264_PROFILE_HIGH_444 } , 0 , 0 , VE , " profile " } ,
{ " constrained_high " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_H264_PROFILE_CONSTRAINED_HIGH } , 0 , 0 , VE , " profile " } ,
{ " 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 " } ,
{ " auto " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_AUTOSELECT } , 0 , 0 , VE , " level " } ,
{ " 1.0 " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_H264_1 } , 0 , 0 , VE , " level " } ,
{ " 1.b " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_H264_1b } , 0 , 0 , VE , " level " } ,
{ " 1.1 " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_H264_11 } , 0 , 0 , VE , " level " } ,
{ " 1.2 " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_H264_12 } , 0 , 0 , VE , " level " } ,
{ " 1.3 " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_H264_13 } , 0 , 0 , VE , " level " } ,
{ " 2.0 " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_H264_2 } , 0 , 0 , VE , " level " } ,
{ " 2.1 " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_H264_21 } , 0 , 0 , VE , " level " } ,
{ " 2.2 " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_H264_22 } , 0 , 0 , VE , " level " } ,
{ " 3.0 " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_H264_3 } , 0 , 0 , VE , " level " } ,
{ " 3.1 " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_H264_31 } , 0 , 0 , VE , " level " } ,
{ " 3.2 " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_H264_32 } , 0 , 0 , VE , " level " } ,
{ " 4.0 " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_H264_4 } , 0 , 0 , VE , " level " } ,
{ " 4.1 " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_H264_41 } , 0 , 0 , VE , " level " } ,
{ " 4.2 " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_H264_42 } , 0 , 0 , VE , " level " } ,
{ " 5.0 " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_H264_5 } , 0 , 0 , VE , " level " } ,
{ " 5.1 " , " " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_LEVEL_H264_51 } , 0 , 0 , VE , " level " } ,
{ " rc " , " Override the preset rate-control " , OFFSET ( rc ) , AV_OPT_TYPE_INT , { . i64 = - 1 } , - 1 , INT_MAX , VE , " rc " } ,
{ " constqp " , " Constant QP mode " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_PARAMS_RC_CONSTQP } , 0 , 0 , VE , " rc " } ,
{ " vbr " , " Variable bitrate mode " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_PARAMS_RC_VBR } , 0 , 0 , VE , " rc " } ,
{ " cbr " , " Constant bitrate mode " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_PARAMS_RC_CBR } , 0 , 0 , VE , " rc " } ,
{ " vbr_minqp " , " Variable bitrate mode with MinQP " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_PARAMS_RC_VBR_MINQP } , 0 , 0 , VE , " rc " } ,
{ " 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 " } ,
{ " 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 " } ,
{ " vbr_2pass " , " Multi-pass variable bitrate mode " , 0 , AV_OPT_TYPE_CONST , { . i64 = NV_ENC_PARAMS_RC_2_PASS_VBR } , 0 , 0 , VE , " rc " } ,
{ " surfaces " , " Number of concurrent surfaces " , OFFSET ( nb_surfaces ) , AV_OPT_TYPE_INT , { . i64 = 32 } , 0 , INT_MAX , VE } ,
{ " device " , " Select a specific NVENC device " , OFFSET ( device ) , AV_OPT_TYPE_INT , { . i64 = - 1 } , - 2 , INT_MAX , VE , " device " } ,
{ " any " , " Pick the first device available " , 0 , AV_OPT_TYPE_CONST , { . i64 = ANY_DEVICE } , 0 , 0 , VE , " device " } ,
{ " list " , " List the available devices " , 0 , AV_OPT_TYPE_CONST , { . i64 = LIST_DEVICES } , 0 , 0 , VE , " device " } ,
{ " 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 } ,
{ " delay " , " Delay frame output by the given amount of frames " , OFFSET ( async_depth ) , AV_OPT_TYPE_INT , { . i64 = INT_MAX } , 0 , INT_MAX , VE } ,
# if NVENCAPI_MAJOR_VERSION >= 7
{ " rc-lookahead " , " Number of frames to look ahead for rate-control " , OFFSET ( rc_lookahead ) , AV_OPT_TYPE_INT , { . i64 = - 1 } , - 1 , INT_MAX , VE } ,
{ " no-scenecut " , " When lookahead is enabled, set this to 1 to disable adaptive I-frame insertion at scene cuts " , OFFSET ( no_scenecut ) , AV_OPT_TYPE_INT , { . i64 = 0 } , 0 , 1 , VE } ,
{ " b_adapt " , " When lookahead is enabled, set this to 0 to disable adaptive B-frame decision " , OFFSET ( b_adapt ) , AV_OPT_TYPE_INT , { . i64 = 1 } , 0 , 1 , VE } ,
{ " spatial-aq " , " set to 1 to enable Spatial AQ " , OFFSET ( aq ) , AV_OPT_TYPE_INT , { . i64 = 0 } , 0 , 1 , VE } ,
{ " temporal-aq " , " set to 1 to enable Temporal AQ " , OFFSET ( temporal_aq ) , AV_OPT_TYPE_INT , { . i64 = 0 } , 0 , 1 , VE } ,
{ " zerolatency " , " Set 1 to indicate zero latency operation (no reordering delay) " , OFFSET ( zerolatency ) , AV_OPT_TYPE_INT , { . i64 = 0 } , 0 , 1 , VE } ,
{ " nonref_p " , " Set this to 1 to enable automatic insertion of non-reference P-frames " , OFFSET ( nonref_p ) , AV_OPT_TYPE_INT , { . i64 = 0 } , 0 , 1 , VE } ,
{ " strict_gop " , " Set 1 to minimize GOP-to-GOP rate fluctuations " , OFFSET ( strict_gop ) , AV_OPT_TYPE_INT , { . i64 = 0 } , 0 , 1 , VE } ,
{ " aq-strength " , " When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive) " , OFFSET ( aq_strength ) , AV_OPT_TYPE_INT , { . i64 = 8 } , 1 , 15 , VE } ,
{ " cq " , " Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control " , OFFSET ( quality ) , AV_OPT_TYPE_INT , { . i64 = 0 } , 0 , 51 , VE } ,
# endif /* NVENCAPI_MAJOR_VERSION >= 7 */
{ " init_qpP " , " Initial QP value for P-frames " , OFFSET ( init_qp_p ) , AV_OPT_TYPE_INT , { . i64 = - 1 } , - 1 , 51 , VE } ,
{ " init_qpB " , " Initial QP value for B-frames " , OFFSET ( init_qp_b ) , AV_OPT_TYPE_INT , { . i64 = - 1 } , - 1 , 51 , VE } ,
{ " init_qpI " , " Initial QP value for I-frames " , OFFSET ( init_qp_i ) , AV_OPT_TYPE_INT , { . i64 = - 1 } , - 1 , 51 , VE } ,
{ NULL }
} ;
static const AVClass nvenc_h264_class = {
. class_name = " nvenc_h264 " ,
. item_name = av_default_item_name ,
. option = options ,
. version = LIBAVUTIL_VERSION_INT ,
} ;
static const AVCodecDefault defaults [ ] = {
{ " b " , " 0 " } ,
{ " qmin " , " -1 " } ,
{ " qmax " , " -1 " } ,
{ " qdiff " , " -1 " } ,
{ " qblur " , " -1 " } ,
{ " qcomp " , " -1 " } ,
{ " refs " , " 0 " } ,
{ NULL } ,
} ;
AVCodec ff_h264_nvenc_encoder = {
. name = " h264_nvenc " ,
. long_name = NULL_IF_CONFIG_SMALL ( " NVIDIA NVENC H.264 encoder " ) ,
. type = AVMEDIA_TYPE_VIDEO ,
. id = AV_CODEC_ID_H264 ,
. init = ff_nvenc_encode_init ,
. encode2 = ff_nvenc_encode_frame ,
. close = ff_nvenc_encode_close ,
. priv_data_size = sizeof ( NVENCContext ) ,
. priv_class = & nvenc_h264_class ,
. defaults = defaults ,
. capabilities = AV_CODEC_CAP_DELAY ,
. caps_internal = FF_CODEC_CAP_INIT_CLEANUP ,
. pix_fmts = ff_nvenc_pix_fmts ,
} ;
# if FF_API_NVENC_OLD_NAME
static int nvenc_old_init ( AVCodecContext * avctx )
{
av_log ( avctx , AV_LOG_WARNING , " This encoder is deprecated, use 'h264_nvenc' instead \n " ) ;
return ff_nvenc_encode_init ( avctx ) ;
}
static const AVClass nvenc_h264_old_class = {
. class_name = " nvenc_h264 " ,
. item_name = av_default_item_name ,
. option = options ,
. version = LIBAVUTIL_VERSION_INT ,
} ;
AVCodec ff_nvenc_h264_encoder = {
. name = " nvenc_h264 " ,
. long_name = NULL_IF_CONFIG_SMALL ( " NVIDIA NVENC H.264 encoder " ) ,
. type = AVMEDIA_TYPE_VIDEO ,
. id = AV_CODEC_ID_H264 ,
. init = nvenc_old_init ,
. encode2 = ff_nvenc_encode_frame ,
. close = ff_nvenc_encode_close ,
. priv_data_size = sizeof ( NVENCContext ) ,
. priv_class = & nvenc_h264_old_class ,
. defaults = defaults ,
. capabilities = AV_CODEC_CAP_DELAY ,
. caps_internal = FF_CODEC_CAP_INIT_CLEANUP ,
. pix_fmts = ff_nvenc_pix_fmts ,
} ;
# endif
