search

jianchang512 / pyvideotrans

Translate the video from one language to another and add dubbing. 将视频从一种语言翻译为另一种语言，并支持api调用
https://pyvideotrans.com
GNU General Public License v3.0
10.21k stars 1.13k forks source link

N卡加速并不支持crf码率控制模式，需要替换成qp #422

Closed extremk closed 2 months ago

extremk commented 4 months ago

nVidia nvenc编码器并不支持crf参数设置，不管你设置多少的 crf，均会被忽略掉

需要改成用qp，qp是量化值，也能起到类似crf的效果

建议搜索源代码，把所有crf换成qp，用法基本一样，对于H264和H265，QP的范围是 0到51，对于av1_nvenc，允许的值是 1到255

image

见图，你可以安全的把所有crf改成qp 对于H264，推荐QP值用23，对H265，默认QP值推荐28 对于AV1，推荐QP值用122，AV1

以下是 nVidia H264（h264_nvenc）编码器使用说明，你可以看到并无crf，不支持crf crf仅可用于CPU编码

Encoder h264_nvenc [NVIDIA NVENC H.264 encoder]: General capabilities: dr1 delay hardware Threading capabilities: none Supported hardware devices: cuda cuda d3d11va d3d11va Supported pixel formats: yuv420p nv12 p010le yuv444p p016le yuv444p16le bgr0 bgra rgb0 rgba x2rgb10le x2bgr10le gbrp gbrp16le cuda d3d11 h264_nvenc AVOptions: -preset E..V....... Set the encoding preset (from 0 to 18) (default p4) default 0 E..V....... slow 1 E..V....... hq 2 passes medium 2 E..V....... hq 1 pass fast 3 E..V....... hp 1 pass hp 4 E..V....... hq 5 E..V....... bd 6 E..V....... ll 7 E..V....... low latency llhq 8 E..V....... low latency hq llhp 9 E..V....... low latency hp lossless 10 E..V....... losslesshp 11 E..V....... p1 12 E..V....... fastest (lowest quality) p2 13 E..V....... faster (lower quality) p3 14 E..V....... fast (low quality) p4 15 E..V....... medium (default) p5 16 E..V....... slow (good quality) p6 17 E..V....... slower (better quality) p7 18 E..V....... slowest (best quality) -tune E..V....... Set the encoding tuning info (from 1 to 4) (default hq) hq 1 E..V....... High quality ll 2 E..V....... Low latency ull 3 E..V....... Ultra low latency lossless 4 E..V....... Lossless -profile E..V....... Set the encoding profile (from 0 to 3) (default main) baseline 0 E..V....... main 1 E..V....... high 2 E..V....... high444p 3 E..V....... -level E..V....... Set the encoding level restriction (from 0 to 62) (default auto) auto 0 E..V....... 1 10 E..V....... 1.0 10 E..V....... 1b 9 E..V....... 1.0b 9 E..V....... 1.1 11 E..V....... 1.2 12 E..V....... 1.3 13 E..V....... 2 20 E..V....... 2.0 20 E..V....... 2.1 21 E..V....... 2.2 22 E..V....... 3 30 E..V....... 3.0 30 E..V....... 3.1 31 E..V....... 3.2 32 E..V....... 4 40 E..V....... 4.0 40 E..V....... 4.1 41 E..V....... 4.2 42 E..V....... 5 50 E..V....... 5.0 50 E..V....... 5.1 51 E..V....... 5.2 52 E..V....... 6.0 60 E..V....... 6.1 61 E..V....... 6.2 62 E..V....... -rc E..V....... Override the preset rate-control (from -1 to INT_MAX) (default -1) constqp 0 E..V....... Constant QP mode vbr 1 E..V....... Variable bitrate mode cbr 2 E..V....... Constant bitrate mode vbr_minqp 8388609 E..V....... Variable bitrate mode with MinQP (deprecated) ll_2pass_quality 8388609 E..V....... Multi-pass optimized for image quality (deprecated) ll_2pass_size 8388610 E..V....... Multi-pass optimized for constant frame size (deprecated) vbr_2pass 8388609 E..V....... Multi-pass variable bitrate mode (deprecated) cbr_ld_hq 8388610 E..V....... Constant bitrate low delay high quality mode cbr_hq 8388610 E..V....... Constant bitrate high quality mode vbr_hq 8388609 E..V....... Variable bitrate high quality mode -rc-lookahead E..V....... Number of frames to look ahead for rate-control (from 0 to INT_MAX) (default 0) -surfaces E..V....... Number of concurrent surfaces (from 0 to 64) (default 0) -cbr E..V....... Use cbr encoding mode (default false) -2pass E..V....... Use 2pass encoding mode (default auto) -gpu E..V....... Selects which NVENC capable GPU to use. First GPU is 0, second is 1, and so on. (from -2 to INT_MAX) (default any) any -1 E..V....... Pick the first device available list -2 E..V....... List the available devices -rgb_mode E..V....... Configure how nvenc handles packed RGB input. (from 0 to INT_MAX) (default yuv420) yuv420 1 E..V....... Convert to yuv420 yuv444 2 E..V....... Convert to yuv444 disabled 0 E..V....... Disables support, throws an error. -delay E..V....... Delay frame output by the given amount of frames (from 0 to INT_MAX) (default INT_MAX) -no-scenecut E..V....... When lookahead is enabled, set this to 1 to disable adaptive I-frame insertion at scene cuts (default false) -forced-idr E..V....... If forcing keyframes, force them as IDR frames. (default false) -b_adapt E..V....... When lookahead is enabled, set this to 0 to disable adaptive B-frame decision (default true) -spatial-aq E..V....... set to 1 to enable Spatial AQ (default false) -spatial_aq E..V....... set to 1 to enable Spatial AQ (default false) -temporal-aq E..V....... set to 1 to enable Temporal AQ (default false) -temporal_aq E..V....... set to 1 to enable Temporal AQ (default false) -zerolatency E..V....... Set 1 to indicate zero latency operation (no reordering delay) (default false) -nonref_p E..V....... Set this to 1 to enable automatic insertion of non-reference P-frames (default false) -strict_gop E..V....... Set 1 to minimize GOP-to-GOP rate fluctuations (default false) -aq-strength E..V....... When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive) (from 1 to 15) (default 8) -cq E..V....... Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control (from 0 to 51) (default 0) -aud E..V....... Use access unit delimiters (default false) -bluray-compat E..V....... Bluray compatibility workarounds (default false) -init_qpP E..V....... Initial QP value for P frame (from -1 to 51) (default -1) -init_qpB E..V....... Initial QP value for B frame (from -1 to 51) (default -1) -init_qpI E..V....... Initial QP value for I frame (from -1 to 51) (default -1) -qp E..V....... Constant quantization parameter rate control method (from -1 to 51) (default -1) -qp_cb_offset E..V....... Quantization parameter offset for cb channel (from -12 to 12) (default 0) -qp_cr_offset E..V....... Quantization parameter offset for cr channel (from -12 to 12) (default 0) -weighted_pred E..V....... Set 1 to enable weighted prediction (from 0 to 1) (default 0) -coder E..V....... Coder type (from -1 to 2) (default default) default -1 E..V....... auto 0 E..V....... cabac 1 E..V....... cavlc 2 E..V....... ac 1 E..V....... vlc 2 E..V....... -b_ref_mode E..V....... Use B frames as references (from -1 to 2) (default -1) disabled 0 E..V....... B frames will not be used for reference each 1 E..V....... Each B frame will be used for reference middle 2 E..V....... Only (number of B frames)/2 will be used for reference -a53cc E..V....... Use A53 Closed Captions (if available) (default true) -dpb_size E..V....... Specifies the DPB size used for encoding (0 means automatic) (from 0 to INT_MAX) (default 0) -multipass E..V....... Set the multipass encoding (from 0 to 2) (default disabled) disabled 0 E..V....... Single Pass qres 1 E..V....... Two Pass encoding is enabled where first Pass is quarter resolution fullres 2 E..V....... Two Pass encoding is enabled where first Pass is full resolution -ldkfs E..V....... Low delay key frame scale; Specifies the Scene Change frame size increase allowed in case of single frame VBV and CBR (from 0 to 255) (default 0) -extra_sei E..V....... Pass on extra SEI data (e.g. a53 cc) to be included in the bitstream (default true) -udu_sei E..V....... Pass on user data unregistered SEI if available (default false) -intra-refresh E..V....... Use Periodic Intra Refresh instead of IDR frames (default false) -single-slice-intra-refresh E..V....... Use single slice intra refresh (default false) -max_slice_size E..V....... Maximum encoded slice size in bytes (from 0 to INT_MAX) (default 0) -constrained-encoding E..V....... Enable constrainedFrame encoding where each slice in the constrained picture is independent of other slices (default false) -lookahead_level E..V....... Specifies the lookahead level. Higher level may improve quality at the expense of performance. (from -1 to 15) (default -1) auto 15 E..V....... 0 0 E..V....... 1 1 E..V....... 2 2 E..V....... 3 3 E..V.......

以下是hevc_nvenc 编码器说明，你可以看到也没有crf，完全不支持crf

Encoder hevc_nvenc [NVIDIA NVENC hevc encoder]: General capabilities: dr1 delay hardware Threading capabilities: none Supported hardware devices: cuda cuda d3d11va d3d11va Supported pixel formats: yuv420p nv12 p010le yuv444p p016le yuv444p16le bgr0 bgra rgb0 rgba x2rgb10le x2bgr10le gbrp gbrp16le cuda d3d11 hevc_nvenc AVOptions: -preset E..V....... Set the encoding preset (from 0 to 18) (default p4) default 0 E..V....... slow 1 E..V....... hq 2 passes medium 2 E..V....... hq 1 pass fast 3 E..V....... hp 1 pass hp 4 E..V....... hq 5 E..V....... bd 6 E..V....... ll 7 E..V....... low latency llhq 8 E..V....... low latency hq llhp 9 E..V....... low latency hp lossless 10 E..V....... lossless losslesshp 11 E..V....... lossless hp p1 12 E..V....... fastest (lowest quality) p2 13 E..V....... faster (lower quality) p3 14 E..V....... fast (low quality) p4 15 E..V....... medium (default) p5 16 E..V....... slow (good quality) p6 17 E..V....... slower (better quality) p7 18 E..V....... slowest (best quality) -tune E..V....... Set the encoding tuning info (from 1 to 5) (default hq) hq 1 E..V....... High quality uhq 5 E..V....... Ultra high quality ll 2 E..V....... Low latency ull 3 E..V....... Ultra low latency lossless 4 E..V....... Lossless -profile E..V....... Set the encoding profile (from 0 to 4) (default main) main 0 E..V....... main10 1 E..V....... rext 2 E..V....... -level E..V....... Set the encoding level restriction (from 0 to 186) (default auto) auto 0 E..V....... 1 30 E..V....... 1.0 30 E..V....... 2 60 E..V....... 2.0 60 E..V....... 2.1 63 E..V....... 3 90 E..V....... 3.0 90 E..V....... 3.1 93 E..V....... 4 120 E..V....... 4.0 120 E..V....... 4.1 123 E..V....... 5 150 E..V....... 5.0 150 E..V....... 5.1 153 E..V....... 5.2 156 E..V....... 6 180 E..V....... 6.0 180 E..V....... 6.1 183 E..V....... 6.2 186 E..V....... -tier E..V....... Set the encoding tier (from 0 to 1) (default main) main 0 E..V....... high 1 E..V....... -rc E..V....... Override the preset rate-control (from -1 to INT_MAX) (default -1) constqp 0 E..V....... Constant QP mode vbr 1 E..V....... Variable bitrate mode cbr 2 E..V....... Constant bitrate mode vbr_minqp 8388609 E..V....... Variable bitrate mode with MinQP (deprecated) ll_2pass_quality 8388609 E..V....... Multi-pass optimized for image quality (deprecated) ll_2pass_size 8388610 E..V....... Multi-pass optimized for constant frame size (deprecated) vbr_2pass 8388609 E..V....... Multi-pass variable bitrate mode (deprecated) cbr_ld_hq 8388610 E..V....... Constant bitrate low delay high quality mode cbr_hq 8388610 E..V....... Constant bitrate high quality mode vbr_hq 8388609 E..V....... Variable bitrate high quality mode -rc-lookahead E..V....... Number of frames to look ahead for rate-control (from 0 to INT_MAX) (default 0) -surfaces E..V....... Number of concurrent surfaces (from 0 to 64) (default 0) -cbr E..V....... Use cbr encoding mode (default false) -2pass E..V....... Use 2pass encoding mode (default auto) -gpu E..V....... Selects which NVENC capable GPU to use. First GPU is 0, second is 1, and so on. (from -2 to INT_MAX) (default any) any -1 E..V....... Pick the first device available list -2 E..V....... List the available devices -rgb_mode E..V....... Configure how nvenc handles packed RGB input. (from 0 to INT_MAX) (default yuv420) yuv420 1 E..V....... Convert to yuv420 yuv444 2 E..V....... Convert to yuv444 disabled 0 E..V....... Disables support, throws an error. -delay E..V....... Delay frame output by the given amount of frames (from 0 to INT_MAX) (default INT_MAX) -no-scenecut E..V....... When lookahead is enabled, set this to 1 to disable adaptive I-frame insertion at scene cuts (default false) -forced-idr E..V....... If forcing keyframes, force them as IDR frames. (default false) -spatial_aq E..V....... set to 1 to enable Spatial AQ (default false) -spatial-aq E..V....... set to 1 to enable Spatial AQ (default false) -temporal_aq E..V....... set to 1 to enable Temporal AQ (default false) -temporal-aq E..V....... set to 1 to enable Temporal AQ (default false) -zerolatency E..V....... Set 1 to indicate zero latency operation (no reordering delay) (default false) -nonref_p E..V....... Set this to 1 to enable automatic insertion of non-reference P-frames (default false) -strict_gop E..V....... Set 1 to minimize GOP-to-GOP rate fluctuations (default false) -aq-strength E..V....... When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive) (from 1 to 15) (default 8) -cq E..V....... Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control (from 0 to 51) (default 0) -aud E..V....... Use access unit delimiters (default false) -bluray-compat E..V....... Bluray compatibility workarounds (default false) -init_qpP E..V....... Initial QP value for P frame (from -1 to 51) (default -1) -init_qpB E..V....... Initial QP value for B frame (from -1 to 51) (default -1) -init_qpI E..V....... Initial QP value for I frame (from -1 to 51) (default -1) -qp E..V....... Constant quantization parameter rate control method (from -1 to 51) (default -1) -qp_cb_offset E..V....... Quantization parameter offset for cb channel (from -12 to 12) (default 0) -qp_cr_offset E..V....... Quantization parameter offset for cr channel (from -12 to 12) (default 0) -weighted_pred E..V....... Set 1 to enable weighted prediction (from 0 to 1) (default 0) -b_ref_mode E..V....... Use B frames as references (from -1 to 2) (default -1) disabled 0 E..V....... B frames will not be used for reference each 1 E..V....... Each B frame will be used for reference middle 2 E..V....... Only (number of B frames)/2 will be used for reference -a53cc E..V....... Use A53 Closed Captions (if available) (default true) -s12m_tc E..V....... Use timecode (if available) (default true) -dpb_size E..V....... Specifies the DPB size used for encoding (0 means automatic) (from 0 to INT_MAX) (default 0) -multipass E..V....... Set the multipass encoding (from 0 to 2) (default disabled) disabled 0 E..V....... Single Pass qres 1 E..V....... Two Pass encoding is enabled where first Pass is quarter resolution fullres 2 E..V....... Two Pass encoding is enabled where first Pass is full resolution -ldkfs E..V....... Low delay key frame scale; Specifies the Scene Change frame size increase allowed in case of single frame VBV and CBR (from 0 to 255) (default 0) -extra_sei E..V....... Pass on extra SEI data (e.g. a53 cc) to be included in the bitstream (default true) -udu_sei E..V....... Pass on user data unregistered SEI if available (default false) -intra-refresh E..V....... Use Periodic Intra Refresh instead of IDR frames (default false) -single-slice-intra-refresh E..V....... Use single slice intra refresh (default false) -max_slice_size E..V....... Maximum encoded slice size in bytes (from 0 to INT_MAX) (default 0) -constrained-encoding E..V....... Enable constrainedFrame encoding where each slice in the constrained picture is independent of other slices (default false) -tf_level E..V....... Specifies the strength of the temporal filtering (from -1 to INT_MAX) (default -1) 0 0 E..V....... 4 4 E..V....... -lookahead_level E..V....... Specifies the lookahead level. Higher level may improve quality at the expense of performance. (from -1 to 15) (default -1) auto 15 E..V....... 0 0 E..V....... 1 1 E..V....... 2 2 E..V....... 3 3 E..V....... -unidir_b E..V....... Enable use of unidirectional B-Frames. (default false) -split_encode_mode E..V....... Specifies the split encoding mode (from 0 to 15) (default auto) disabled 15 E..V....... Disabled for all configurations auto 0 E..V....... Enabled or disabled depending on the preset and tuning info forced 1 E..V....... Enabled with number of horizontal strips selected by the driver 2 2 E..V....... Enabled with number of horizontal strips forced to 2 when number of NVENCs > 1 3 3 E..V....... Enabled with number of horizontal strips forced to 3 when number of NVENCs > 2