FFmpeg スタビライザー -vf オプション
基本の例 ffmpegヘルプから
ffmpeg -i input -vf vidstabdetect=shakiness=5:show=1 dummy.avi
ffmpeg -i input -vf vidstabdetect=show=1 dummy.avi
[ve1f8] Fieldsize: 112, Maximal translation: 154 pixel
[ve1f8] Number of used measurement fields: 65 out of 65
[ve1f8] Fieldsize: 32, Maximal translation: 32 pixel
[ve1f8] Number of used measurement fields: 392 out of 392
[P002524782ad40] Video stabilization settings (pass 1/2):
[P002524782ad40] shakiness = 5
[P002524782ad40] accuracy = 15
[P002524782ad40] stepsize = 6
[P002524782ad40] mincontrast = 0.250000
[P002524782ad40] tripod = 0
[P002524782ad40] show = 0
[P002524782ad40] result = transforms.trf
他の例
ffmpeg -i i.mp4 -c:v hevc_qsv -vf vidstabdetect=shakiness=5:show=1 o.mp4
ffmpeg -i i.mp4 -c:v hevc_qsv -b:v 15984K -vf vidstabdetect o.mp4
end
2020年7月5日日曜日
2020年7月3日金曜日
FFmpeg NVIDIA NVENC -b_ref_mode
NVIDIA NVENC -b_ref_mode 確認
ffmpeg -i input.mp4 -c:v hevc_nvenc -b_ref_mode 2 out.mp4
https://developer.nvidia.com/video-encode-decode-gpu-support-matrix
GTX1650 TU117 HEVC B Frame support なし
-b_ref_mode 1 エラー あり
Each B frame as referencd is not supported
-b_ref_mode 2 エラー あり
Each B frame as referencd is not supported
GTX1660 TU116 HEVC B Frame support あり
-b_ref_mode 1 エラー
Each B frame as referencd is not supported
-b_ref_mode 2 エラーなし
GTX1660TI TU116 HEVC B Frame support あり
-b_ref_mode 1 エラーあり
Each B frame as referencd is not supported
-b_ref_mode 2 エラーなし
参考
ffmpeg -encoders | find "NVIDIA"
hevc_nvenc AVOptions: 確認
ffmpeg -h encoder=hevc_nvenc
end
ffmpeg -i input.mp4 -c:v hevc_nvenc -b_ref_mode 2 out.mp4
https://developer.nvidia.com/video-encode-decode-gpu-support-matrix
GTX1650 TU117 HEVC B Frame support なし
-b_ref_mode 1 エラー あり
Each B frame as referencd is not supported
-b_ref_mode 2 エラー あり
Each B frame as referencd is not supported
GTX1660 TU116 HEVC B Frame support あり
-b_ref_mode 1 エラー
Each B frame as referencd is not supported
-b_ref_mode 2 エラーなし
GTX1660TI TU116 HEVC B Frame support あり
-b_ref_mode 1 エラーあり
Each B frame as referencd is not supported
-b_ref_mode 2 エラーなし
参考
ffmpeg -encoders | find "NVIDIA"
hevc_nvenc AVOptions: 確認
ffmpeg -h encoder=hevc_nvenc
end
2020年6月29日月曜日
FFmpeg NVIDIA NVENC 詳細オプション確認コマンド
NVIDIA NVENC 詳細オプション確認コマンド
ffmpeg -h encoder=nvenc_hevc
nvenc_hevc NVIDIA NVENC hevc encoder (codec hevc)
表示した結果の一部
Encoder nvenc_hevc [NVIDIA NVENC hevc encoder]:
General capabilities: delay hardware
Threading capabilities: none
Supported hardware devices: cuda cuda d3d11va d3d11va
Supported pixel formats: yuv420p nv12 p010le yuv444p p016le yuv444p16le bgr0 rgb0 cuda d3d11
nvenc_hevc AVOptions:
-preset <int>
-profile <int>
-level <int>
-tier <int>
-rc <int>
-rc-lookahead <int>
-surfaces <int>
-cbr <boolean>
-2pass <boolean>
-gpu <int>
-delay <int>
-no-scenecut <boolean>
-forced-idr <boolean>
-spatial_aq <boolean>
-spatial-aq <boolean>
-temporal_aq <boolean>
-temporal-aq <boolean>
-zerolatency <boolean>
-nonref_p <boolean>
-strict_gop <boolean>
-aq-strength <int>
-cq <float>
-aud <boolean>
-bluray-compat <boolean>
-init_qpP <int>
-init_qpB <int>
-init_qpI <int>
-qp <int>
-weighted_pred <int>
-b_ref_mode <int>
-dpb_size <int>
-b_ref_mode <int> E..V...... Use B frames as references (from 0 to 2) (default disabled)
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
end
ffmpeg -h encoder=nvenc_hevc
nvenc_hevc NVIDIA NVENC hevc encoder (codec hevc)
表示した結果の一部
Encoder nvenc_hevc [NVIDIA NVENC hevc encoder]:
General capabilities: delay hardware
Threading capabilities: none
Supported hardware devices: cuda cuda d3d11va d3d11va
Supported pixel formats: yuv420p nv12 p010le yuv444p p016le yuv444p16le bgr0 rgb0 cuda d3d11
nvenc_hevc AVOptions:
-preset <int>
-profile <int>
-level <int>
-tier <int>
-rc <int>
-rc-lookahead <int>
-surfaces <int>
-cbr <boolean>
-2pass <boolean>
-gpu <int>
-delay <int>
-no-scenecut <boolean>
-forced-idr <boolean>
-spatial_aq <boolean>
-spatial-aq <boolean>
-temporal_aq <boolean>
-temporal-aq <boolean>
-zerolatency <boolean>
-nonref_p <boolean>
-strict_gop <boolean>
-aq-strength <int>
-cq <float>
-aud <boolean>
-bluray-compat <boolean>
-init_qpP <int>
-init_qpB <int>
-init_qpI <int>
-qp <int>
-weighted_pred <int>
-b_ref_mode <int>
-dpb_size <int>
-b_ref_mode <int> E..V...... Use B frames as references (from 0 to 2) (default disabled)
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
end
FFmpeg NVIDIA H.264 hevc エンコード確認コマンド
ffmpeg.exe -encoders | find "NVIDIA"
ffmpeg version 4.3 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 9.3.1 (GCC) 20200621
V..... h264_nvenc NVIDIA NVENC H.264 encoder (codec h264)
V..... nvenc NVIDIA NVENC H.264 encoder (codec h264)
V..... nvenc_h264 NVIDIA NVENC H.264 encoder (codec h264)
V..... nvenc_hevc NVIDIA NVENC hevc encoder (codec hevc)
V..... hevc_nvenc NVIDIA NVENC hevc encoder (codec hevc)
ffmpeg version 4.3 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 9.3.1 (GCC) 20200621
V..... h264_nvenc NVIDIA NVENC H.264 encoder (codec h264)
V..... nvenc NVIDIA NVENC H.264 encoder (codec h264)
V..... nvenc_h264 NVIDIA NVENC H.264 encoder (codec h264)
V..... nvenc_hevc NVIDIA NVENC hevc encoder (codec hevc)
V..... hevc_nvenc NVIDIA NVENC hevc encoder (codec hevc)
ffmpeg.exe -hide_banner -encoders | find "NVIDIA"
V..... h264_nvenc NVIDIA NVENC H.264 encoder (codec h264)
V..... nvenc NVIDIA NVENC H.264 encoder (codec h264)
V..... nvenc_h264 NVIDIA NVENC H.264 encoder (codec h264)
V..... nvenc_hevc NVIDIA NVENC hevc encoder (codec hevc)
V..... hevc_nvenc NVIDIA NVENC hevc encoder (codec hevc)
Advanced global options:
-hide_banner hide_banner do not show program banner
ffmpeg バージョンなどを表示させない。
This encoder is deprecated, use 'hevc_nvenc' instead
end
-hide_banner hide_banner do not show program banner
ffmpeg バージョンなどを表示させない。
This encoder is deprecated, use 'hevc_nvenc' instead
end
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