FFMpeg 濾鏡中英文對照

FFMpeg ver 20160213-git-588e2e3 濾鏡中英文對照 2016.02.17 by 1CM

T.. = Timeline support
      支持時間軸
.S. = Slice threading
      分段線程
..C = Command support
      支持命令傳送
A = Audio input/output
    音頻 輸入/輸出
V = Video input/output
    視頻 輸入/輸出
N = Dynamic number and/or type of input/output
    可輸入動態值
| = Source or sink filter
    源或場景過濾

Audio Filters
音頻濾鏡

 ... acompressor       A->A       Audio compressor.
                                  壓縮音頻.
 ... acrossfade        AA->A      Cross fade two input audio streams.
                                  交叉混合輸入的兩個音頻流.
 T.. adelay            A->A       Delay one or more audio channels.
                                  延遲單個或多個音頻通道.
 ... aecho             A->A       Add echoing to the audio.
                                  音頻上追加回波.
 ... aemphasis         A->A       Audio emphasis.
                                  音頻補償.
 ... aeval             A->A       Filter audio signal according to a specified expression.
                                  根據指定的表達式修改音頻信號.
 T.. afade             A->A       Fade in/out input audio.
                                  淡入/淡出 輸入的音頻.
 ... afftfilt          A->A       Apply arbitrary expressions to samples in frequency domain.
                                  將任意表達式應用到采樣頻域.
 ... aformat           A->A       Convert the input audio to one of the specified formats.
                                  指定格式轉換輸入的音頻.
 ... agate             A->A       Audio gate.
                                  音頻通道.
 ... ainterleave       N->A       Temporally interleave audio inputs.
                                  時間交疊輸入音頻.
 ... alimiter          A->A       Audio lookahead limiter.
                                  音頻超前限制.
 ... allpass           A->A       Apply a two-pole all-pass filter.
                                  應用到一個兩極全通濾鏡.
 ... amerge            N->A       Merge two or more audio streams into a single multi-channel stream.
                                  兩個或兩個以上的音頻流合並到一個多通道流.
 T.. ametadata         A->A       Manipulate audio frame metadata.
                                  操控音頻幀的元數據.
 ... amix              N->A       Audio mixing.
                                  多個輸入音頻混合到單個音頻輸出.
 ..C anequalizer       A->N       Apply high-order audio parametric multi band equalizer.
                                  應用到每個通道高階參數多波段均衡器.
 ... anull             A->A       Pass the source unchanged to the output.
                                  不改變音頻源進行輸出.
 T.. apad              A->A       Pad audio with silence.
                                  無聲填充模板.
 ... aperms            A->A       Set permissions for the output audio frame.
                                  允許設置輸出的音頻幀.
 ... aphaser           A->A       Add a phasing effect to the audio.
                                  給輸入音頻添加調相效果.
 ... apulsator         A->A       Audio pulsator.
                                  音頻震動器.
 ... arealtime         A->A       Slow down filtering to match realtime.
                                  減慢過濾作用,近似實時匹配.
 ... aresample         A->A       Resample audio data.
                                  重新采樣音頻數據.
 ... areverse          A->A       Reverse an audio clip.
                                  反轉音頻素材.
 ... aselect           A->N       Select audio frames to pass in output.
                                  選擇音頻幀賦予輸出.
 ... asendcmd          A->A       Send commands to filters.
                                  給濾鏡發送命令,必須插入到兩個音頻之間,只對具有該功能的濾鏡命令有效.
 ... asetnsamples      A->A       Set the number of samples for each output audio frames.
                                  設置每個輸出音頻幀的采樣數.
 ... asetpts           A->A       Set PTS for the output audio frame.
                                  設置輸出音頻的表示時間戳(PTS).
 ... asetrate          A->A       Change the sample rate without altering the data.
                                  設置采樣率,但不改變PCM數據.
 ... asettb            A->A       Set timebase for the audio output link.
                                  設置時間軸用於音頻輸出幀的時間戳.
 ... ashowinfo         A->A       Show textual information for each audio frame.
                                  顯示每個音頻幀的文本信息.
 ... asplit            A->N       Pass on the audio input to N audio outputs.
                                  輸入的音頻分配給N個相同的輸出.
 ... astats            A->A       Show time domain statistics about audio frames.
                                  顯示音頻幀的時域統計信息.
 ..C astreamselect     N->N       Select audio streams.
                                  多個輸入音頻流中選擇一個音頻流,若干個具有相同時間長度的媒體有效.
 ..C atempo            A->A       Adjust audio tempo.
                                  調整音頻播放速度, 其范圍是0.5-2.0.
 ... atrim             A->A       Pick one continuous section from the input, drop the rest.
                                  從輸入音頻中挑選連續的組成部分,一直到結束.
 ... bandpass          A->A       Apply a two-pole Butterworth band-pass filter.
                                  應用到一個兩極巴特沃斯帶通濾波器的主要頻率.
 ... bandreject        A->A       Apply a two-pole Butterworth band-reject filter.
                                  應用到一個兩極巴特沃斯帶阻濾波器的主要頻率.
 ... bass              A->A       Boost or cut lower frequencies.
                                  增加或減少低頻.
 ... biquad            A->A       Apply a biquad IIR filter with the given coefficients.
                                  應用到雙二次濾鏡的特定系數.
 ... bs2b              A->A       Bauer stereo-to-binaural filter.
                                  鮑爾立體聲雙聲道的轉換,適合用耳機聽立體聲音頻.
 ... channelmap        A->A       Remap audio channels.
                                  將輸入音頻通道重新映射到新的位置.
 ... channelsplit      A->N       Split audio into per-channel streams.
                                  輸入音頻流的每個音頻通道分為不同的輸出流.
 ... chorus            A->A       Add a chorus effect to the audio.
                                  給音頻添加合唱效果.
 ... compand           A->A       Compress or expand audio dynamic range.
                                  壓縮或展開音頻的動態范圍.
 ... compensationdelay A->A       Audio Compensation Delay Line.
                                  給音頻補償延遲線.
 T.. dcshift           A->A       Apply a DC shift to the audio.
                                  應用到DC偏置(可能由硬件問題引起的錄音通路)的音頻.
 ... dynaudnorm        A->A       Dynamic Audio Normalizer.
                                  動態音頻的標准化.
 ... earwax            A->A       Widen the stereo image.
                                  擴展到用耳機聽到立體感.
 ... ebur128           A->N       EBU R128 scanner.
                                  EBU R128 音頻可視化掃描濾鏡.
 ... equalizer         A->A       Apply two-pole peaking equalization (EQ) filter.
                                  應用到兩極峰值均衡器(EQ)濾鏡.
 ... extrastereo       A->A       Increase difference between stereo audio channels.
                                  給左右音頻通道線性增加某種"現場"回放效果.
 ... flanger           A->A       Apply a flanging effect to the audio.
                                  翻邊效果應用到音頻中.
 ... highpass          A->A       Apply a high-pass filter with 3dB point frequency.
                                  應用到3db點頻率的高通濾鏡.
 ... join              N->A       Join multiple audio streams into multi-channel output.
                                  多輸入音頻流連接到一個多通道輸出流.
 ... lowpass           A->A       Apply a low-pass filter with 3dB point frequency.
                                  應用到3db點頻率的低通濾鏡.
 ... pan               A->A       Remix channels with coefficients (panning).
                                  混合特定增益電平的通道(填充).
 ... replaygain        A->A       ReplayGain scanner.
                                  顯示增益和峰值的掃描濾鏡.
 ... sidechaincompress AA->A      Sidechain compressor.
                                  側鏈壓縮器,需要兩個輸入流,返回一個輸出流.
 ... sidechaingate     AA->A      Audio sidechain gate.
                                  音頻側鏈的增益.
 ... silencedetect     A->A       Detect silence.
                                  檢測音頻流中的無聲部分.
 ... silenceremove     A->A       Remove silence.
                                  刪除無聲部分,從開始到結束.
 ... stereotools       A->A       Apply various stereo tools.
                                  應用到不同立體感的功能.
 ... stereowiden       A->A       Apply stereo widening effect.
                                  應用到擴展立體效果.
 ... treble            A->A       Boost or cut upper frequencies.
                                  增加或減少上頻率.
 ... tremolo           A->A       Apply tremolo effect.
                                  應用到震音效果,有一點回音效果.
 ... vibrato           A->A       Apply vibrato effect.
                                  應用到顫音效果.
 T.C volume            A->A       Change input volume.
                                  改變輸入音頻的音量.
 ... volumedetect      A->A       Detect audio volume.
                                  檢測輸入音頻的音量.
 ... aevalsrc          |->A       Generate an audio signal generated by an expression.
                                  根據指定的表達式生成一個音頻信號.
 ... anoisesrc         |->A       Generate a noise audio signal.
                                  生成一個噪聲音頻信號.
 ... anullsrc          |->A       Null audio source, return empty audio frames.
                                  生成無聲音頻源,返回未處理的空音頻幀.
 ... sine              |->A       Generate sine wave audio signal.
                                  生成一個正弦波音頻信號.
 ... anullsink         A->|       Do absolutely nothing with the input audio.
                                  無聲音頻接收器,與輸入音頻無關.
 ... adrawgraph        A->V       Draw a graph using input audio metadata.
                                  利用音頻的元數據畫曲線圖.
 ... ahistogram        A->V       Convert input audio to histogram video output.
                                  輸入音頻轉換為視頻輸出,顯示音量直方圖.
 ... aphasemeter       A->V       Convert input audio to phase meter video output.
                                  輸入音頻轉換為相位表視頻輸出.
 ... avectorscope      A->V       Convert input audio to vectorscope video output.
                                  輸入音頻轉換為矢量色度顯示視頻輸出.
 ... showcqt           A->V       Convert input audio to a CQT (Constant/Clamped Q Transform) spectrum video output.
                                  輸入音頻轉換為 固定/固支 Q 變換(CQT) 頻譜視頻輸出.
 ... showfreqs         A->V       Convert input audio to a frequencies video output.
                                  輸入音頻轉換為音頻功率譜視頻輸出.
 ... showspectrum      A->V       Convert input audio to a spectrum video output.
                                  輸入音頻轉換為音頻頻譜視頻輸出.
 ... showspectrumpic   A->V       Convert input audio to a spectrum video output single picture.
                                  輸入音頻轉換為單張音譜圖片.
 ... showvolume        A->V       Convert input audio volume to video output.
                                  輸入音頻音量轉換為視頻輸出.
 ... showwaves         A->V       Convert input audio to a video output.
                                  輸入音頻轉換為波形視頻輸出.
 ... showwavespic      A->V       Convert input audio to a video output single picture.
                                  輸入音頻轉換為單張波形圖片.
 ... spectrumsynth     VV->A      Convert input spectrum videos to audio output.
                                  輸入視頻譜轉換為音頻輸出.
 ... abuffer           |->A       Buffer audio frames, and make them accessible to the filterchain.
                                  緩沖音頻幀,並用於濾鏡鏈.
 ... abuffersink       A->|       Buffer audio frames, and make them available to the end of the filter graph.
                                  緩沖音頻幀,並用於濾鏡圖的結束.
 ... afifo             A->A       Buffer input frames and send them when they are requested.
                                  緩沖輸入幀,若需求時.
 ... amovie            |->N       Read audio from a movie source.
                                  從視頻源讀入音頻.

Video Filters
視頻濾鏡

 ... alphaextract      V->N       Extract an alpha channel as a grayscale image component.
                                  從灰度級測視圖中提取阿爾法α通道分量.
 ... alphamerge        VV->V      Copy the luma value of the second input into the alpha channel of the first input.
                                  使用第一個輸入視頻的阿爾法α通道分量,添加或替換的第二個輸入視頻亮度值.
 TS. atadenoise        V->V       Apply an Adaptive Temporal Averaging Denoiser.
                                  自適應時間平均降噪功能應用在輸入的視頻.
 ... ass               V->V       Render ASS subtitles onto input video using the libass library.
                                  使用libass程序庫給輸入視頻渲染ASS字幕.
 T.. bbox              V->V       Compute bounding box for each frame.
                                  視頻的每一個幀上計算邊界框.
 ... blackdetect       V->V       Detect video intervals that are (almost) black.
                                  檢測視頻中完全(幾乎)黑色的時間間隔.
 ... blackframe        V->V       Detect frames that are (almost) black.
                                  檢測完全(幾乎)黑色的幀.
 TS. blend             VV->V      Blend two video frames into each other.
                                  兩個視頻幀混合到另一個幀上.
 T.. boxblur           V->V       Blur the input.
                                  模糊處理輸入視頻.
 TS. chromakey         V->V       Turns a certain color into transparency. Operates on YUV colors.
                                  在YUV顏色空間中針對一些顏色做透明處理,應用與摳圖功能,比 colorkey 濾鏡邊界更柔和.
 T.. codecview         V->V       Visualize information about some codecs.
                                  導出一些解碼器的可視化信息.
 T.. colorbalance      V->V       Adjust the color balance.
                                  修改輸入幀的三原色(紅、綠、藍)信號亮度.
 T.. colorchannelmixer V->V       Adjust colors by mixing color channels.
                                  調整輸入視頻幀的混合顏色通道.
 TS. colorkey          V->V       Turns a certain color into transparency. Operates on RGB colors.
                                  在RGB顏色空間中針對一些顏色做透明處理,邊界較為生硬.
 T.. colorlevels       V->V       Adjust the color levels.
                                  調整輸入視頻幀的顏色信號電平.
 TS. colormatrix       V->V       Convert color matrix.
                                  轉換顏色矩陣.
 T.. convolution       V->V       Apply convolution filter.
                                  使用卷積3x3或5x5濾鏡,適用於銳化,模糊,邊緣增強,邊緣檢測和浮雕等處理.
 ... copy              V->V       Copy the input video unchanged to the output.
                                  復制輸入視頻,原封不動輸出,主要是用於測試目的.
 ... cover_rect        V->V       Find and cover a user specified object.
                                  查找並覆蓋用戶指定的矩形對象.
 ..C crop              V->V       Crop the input video to given dimensions.
                                  剪切輸入視頻顯示區域,並給於新的尺寸.
 T.. cropdetect        V->V       Auto-detect crop size.
                                  自動檢測剪切大小.
 TS. curves            V->V       Adjust components curves.
                                  利用曲線功能調整顏色分量,也可以利用圖象處理軟件的曲線文件來處理顏色.
 TS. dctdnoiz          V->V       Denoise frames using 2D DCT.
                                  使用二維頻域過濾(2D DCT)對幀進行降噪處理.
 TS. deband            V->V       Debands video, Remove banding artifacts from input video.
                                  從輸入視頻中移除帶狀偽像.
 ... decimate          N->V       Decimate frames (post field matching filter).
                                  定期刪除重復的幀(后場匹配濾鏡).
 T.. deflate           V->V       Apply deflate effect.
                                  適用於緊縮效果.
 ... dejudder          V->V       Remove judder produced by pullup.
                                  刪除動作產生的部分顫抖.
 T.. delogo            V->V       Remove logo from input video.
                                  對指定區域做模糊處理,比如能移除輸入視頻中的標識.
 ... deshake           V->V       Stabilize shaky video.
                                  試圖修改水平或垂直的移位,降低顫抖讓視頻更穩定,這個濾鏡有助於減小手持相機抖動影響.
 ... detelecine        V->V       Apply an inverse telecine pattern.
                                  適用於電視電影的精確反向操作,顏色邊界有鋸齒效果.
 T.. dilation          V->V       Apply dilation effect.
                                  膨脹效果應用於視頻.
 T.. displace          VVV->V     Displace pixels.
                                  移走像素,需要三個視頻輸入流和一個視頻輸出流,第一個輸入源,第二和第三個輸入位移的映射.
 T.. drawbox           V->V       Draw a colored box on the input video.
                                  輸入視頻圖像上繪制彩色的矩形區域.
 ... drawgraph         V->V       Draw a graph using input video metadata.
                                  利用輸入視頻的元數據繪制圖表.
 T.. drawgrid          V->V       Draw a colored grid on the input video.
                                  在輸入視頻上繪制彩色網格.
 T.C drawtext          V->V       Draw text on top of video frames using libfreetype library.
                                  使用 libfreetype 程序庫,在頂層幀上繪制文本字符串,文本內容可從指定文件中讀取.
 T.. edgedetect        V->V       Detect and draw edge.
                                  檢測並繪制邊緣.
 ... elbg              V->V       Apply posterize effect, using the ELBG algorithm.
                                  使用增強型LBG(ELBG)算法,用於多色調分色印效果.
 ..C eq                V->V       Adjust brightness, contrast, gamma, and saturation.
                                  調整亮度、對比度、灰度和飽和度.
 T.. erosion           V->V       Apply erosion effect.
                                  侵蝕效果應用於視頻,類似油畫處理.
 ... extractplanes     V->N       Extract planes as grayscale frames.
                                  從輸入視頻流中提取顏色通道分量用在單獨灰度視頻流的幀上.
 .S. fade              V->V       Fade in/out input video.
                                  適用於輸入視頻的淡入/淡出效果.
 ... fftfilt           V->V       Apply arbitrary expressions to pixels in frequency domain.
                                  頻域內將任意表達式用於采樣的像素集.
 ... field             V->V       Extract a field from the input video.
                                  使用步進算法,從輸入視頻里的隔行圖像中提取單場.
 ... fieldmatch        N->V       Field matching for inverse telecine.
                                  場匹配濾鏡適用於電視電影的反向操作.
 T.. fieldorder        V->V       Set the field order.
                                  改變輸入視頻的場順序.
 ... find_rect         V->V       Find a user specified object.
                                  尋找用戶指定的矩形區域.
 ... format            V->V       Convert the input video to one of the specified pixel formats.
                                  輸入視頻轉換為指定的像素格式.
 ... fps               V->V       Force constant framerate.
                                  強制設定固定幀頻.
 ... framepack         VV->V      Generate a frame packed stereoscopic video.
                                  生成幀疊加的立體視頻.
 ... framerate         V->V       Upsamples or downsamples progressive source between specified frame rates.
                                  上采樣或下采樣順序漸進的視頻源之間設定指定幀頻.
 T.. framestep         V->V       Select one frame every N frames.
                                  每 N 個幀中選一個幀,設置幀步.
 ... frei0r            V->V       Apply a frei0r effect.
                                  使用 frei0r 濾鏡.
 T.. fspp              V->V       Apply Fast Simple Post-processing filter.
                                  用於快速和簡單的后處理濾鏡.
 T.. geq               V->V       Apply generic equation to each pixel.
                                  利用一般表達式改變每個像素點的特征.
 T.. gradfun           V->V       Debands video quickly using gradients.
                                  利用梯度快速移除帶狀偽像.
 TS. haldclut          VV->V      Adjust colors using a Hald CLUT.
                                  利用哈爾德查色表調整顏色.
 .S. hflip             V->V       Horizontally flip the input video.
                                  水平翻轉顯示輸入視頻.
 T.. histeq            V->V       Apply global color histogram equalization.
                                  適用於全局顏色直方圖均衡化.
 ... histogram         V->V       Compute and draw a histogram.
                                  計算並繪制顏色分布直方圖.
 T.. hqdn3d            V->V       Apply a High Quality 3D Denoiser.
                                  使用高質量三維降噪濾鏡.
 .S. hqx               V->V       Scale the input by 2, 3 or 4 using the hq*x magnification algorithm.
                                  利用高質量放大算法縮放視頻顯示大小,可輸入2,3或4.
 ... hstack            N->V       Stack video inputs horizontally.
                                  把若干個輸入視頻合並到一個水平顯示的輸出視頻.
 T.C hue               V->V       Adjust the hue and saturation of the input video.
                                  調整輸入視頻的色相和飽和度.
 ... idet              V->V       Interlace detect Filter.
                                  檢測視頻的交叉類型濾鏡.
 T.. il                V->V       Deinterleave or interleave fields.
                                  允許處理不交叉的隔行圖像場.
 T.. inflate           V->V       Apply inflate effect.
                                  膨脹效果用於視頻.
 ... interlace         V->V       Convert progressive video into interlaced.
                                  轉化為分段視頻用於隔行處理,顏色邊界有鋸齒效果.
 ... interleave        N->V       Temporally interleave video inputs.
                                  能執行時間場交叉的各種類型.
 ... kerndeint         V->V       Apply kernel deinterlacing to the input.
                                  對輸入的視頻進行內核反交叉處理.
 .S. lenscorrection    V->V       Rectify the image by correcting for lens distortion.
                                  矯正圖像用於校正透鏡畸變.
 TS. lut3d             V->V       Adjust colors using a 3D LUT.
                                  利用三維查色表調整顏色.
 T.. lut               V->V       Compute and apply a lookup table to the RGB/YUV input video.
                                  利用查表計算處理 RGB/YUV 格式輸入的視頻.
 T.. lutrgb            V->V       Compute and apply a lookup table to the RGB input video.
                                  利用查表計算處理 RGB 格式輸入的視頻.
 T.. lutyuv            V->V       Compute and apply a lookup table to the YUV input video.
                                  利用查表計算處理 YUV 格式輸入的視頻.
 T.. maskedmerge       VVV->V     Merge first stream with second stream using third stream as mask.
                                  合並前二個輸入視頻,掩模到第三個輸入視頻,透明合並三個視頻.
 ... mcdeint           V->V       Apply motion compensating deinterlacing.
                                  適用於運動補償反交叉.
 ... mergeplanes       N->V       Merge planes.
                                  合並多個視頻流的顏色通道分量.
 T.. metadata          V->V       Manipulate video frame metadata.
                                  操作視頻幀的元數據,用於調試.
 ... mpdecimate        V->V       Remove near-duplicate frames.
                                  移除近似重復的幀.
 T.. negate            V->V       Negate input video.
                                  取消輸入視頻的阿爾法通道分量,濾鏡效果類似底片.
 T.. nnedi             V->V       Apply neural network edge directed interpolation intra-only deinterlacer.
                                  使用神經網絡邊緣插值法進行反隔行處理,需要加權重的二進制文件.
 ... noformat          V->V       Force libavfilter not to use any of the specified pixel formats for the input to the next filter.
                                  取消指定的像素格式,用於下一個濾鏡.
 TS. noise             V->V       Add noise.
                                  視頻輸入幀上添加噪聲.
 ... null              V->V       Pass the source unchanged to the output.
                                  不改變視頻源進行輸出.
 T.C overlay           VV->V      Overlay a video source on top of the input.
                                  把一個視頻覆蓋到另一個視頻上面,需要兩個輸入和一個輸出.
 T.. owdenoise         V->V       Denoise using wavelets.
                                  利用小波降噪法進行降噪處理.
 ... pad               V->V       Pad the input video.
                                  給輸入視頻添加填充新的顯示區域.
 ... palettegen        V->V       Find the optimal palette for a given stream.
                                  生成最佳調色板,用於給定的視頻流.
 ... paletteuse        VV->V      Use a palette to downsample an input video stream.
                                  下采樣輸入視頻流中使用調色板,適用於生成 GIF 動態圖.
 ... perms             V->V       Set permissions for the output video frame.
                                  給輸出視頻幀設置讀/寫權限.
 TS. perspective       V->V       Correct the perspective of video.
                                  校正視頻的透視.
 T.. phase             V->V       Phase shift fields.
                                  對隔行視頻延遲單場時間,便於場序的變化.
 ... pixdesctest       V->V       Test pixel format definitions.
                                  像素格式描述符測試濾鏡,主要用於內部測試.
 T.C pp                V->V       Filter video using libpostproc.
                                  使用 libpostproc 后處理程序庫進行過濾.
 T.. pp7               V->V       Apply Postprocessing 7 filter.
                                  使用后處理濾鏡7.
 ... psnr              VV->V      Calculate the PSNR between two video streams.
                                  計算兩個視頻流之間的峰值信噪比(PSNR).
 ... pullup            V->V       Pullup from field sequence to frames.
                                  折疊場序用於輸出幀,退回到電視電影效果.
 T.. qp                V->V       Change video quantization parameters.
                                  改變視頻量化參數(QP).
 ... random            V->V       Return random frames.
                                  從內部緩存刷新出視頻幀的隨機幀.
 ... realtime          V->V       Slow down filtering to match realtime.
                                  減慢過濾速度,接近實時效果.
 TS. removegrain       V->V       Remove grain.
                                  移除紋理,對步進視頻進行降噪處理.
 T.. removelogo        V->V       Remove a TV logo based on a mask image.
                                  利用掩模圖像移除電視徽標,掩模圖像的大小必須與視頻相同,黑色是透明.
 ... repeatfields      V->V       Hard repeat fields based on MPEG repeat field flag.
                                  根據運動圖象專家組(MPEG)重復場標志,硬執行重復場.
 ... reverse           V->V       Reverse a clip.
                                  倒放一段視頻片段,需要把整個片段裝入內存緩沖區.
 TSC rotate            V->V       Rotate the input image.
                                  任意角度旋轉視頻,用弧度表示的單位.
 T.. sab               V->V       Apply shape adaptive blur.
                                  形狀自適應模糊濾鏡.
 ..C scale             V->V       Scale the input video size and/or convert the image format.
                                  縮放輸入視頻的尺寸並/或改變圖像格式,使用libswscale庫.
 ..C scale2ref         VV->VV     Scale the input video size and/or convert the image format to the given reference.
                                  縮放輸入視頻的尺寸並/或改變圖像格式用於引用視頻,使用libswscale庫.
 ... select            V->N       Select video frames to pass in output.
                                  選擇視頻幀用於下一個濾鏡.
 TS. selectivecolor    V->V       Apply CMYK adjustments to specific color ranges.
                                  利用青色,品紅色,黃色和黑色(CMYK)調整特定范圍的顏色.
 ... sendcmd           V->V       Send commands to filters.
                                  給濾鏡發送命令,必須插入到兩個視頻之間,只對具有該功能的濾鏡命令有效.
 ... separatefields    V->V       Split input video frames into fields.
                                  分解輸入視頻幀進場,產生一個新的一半高度剪輯幀.
 ... setdar            V->V       Set the frame display aspect ratio.
                                  設置視頻的顯示縱橫比.
 ... setfield          V->V       Force field for the output video frame.
                                  改變輸出視頻幀的屬性,不改變視頻幀的數據.
 ... setpts            V->V       Set PTS for the output video frame.
                                  設置輸出視頻幀的顯示時間戳(PTS),可以用於快放或慢放等.
 ... setsar            V->V       Set the pixel sample aspect ratio.
                                  設置像素采樣縱橫比.
 ... settb             V->V       Set timebase for the video output link.
                                  設置時間軸用於視頻輸出幀的時間戳,主要用於測試時間軸配置.
 ... showinfo          V->V       Show textual information for each video frame.
                                  顯示每個視頻幀的文本信息.
 T.. showpalette       V->V       Display frame palette.
                                  顯示每一幀的 256 色調色板.
 T.. shuffleframes     V->V       Shuffle video frames.
                                  打亂視頻幀,重新排序和/或重復視頻幀.
 ... shuffleplanes     V->V       Shuffle video planes.
                                  打亂視頻映射平面,重新排序和/或重復視頻映射平面.
 .S. signalstats       V->V       Generate statistics from video analysis.
                                  分析視頻過程中生成統計信息.
 T.. smartblur         V->V       Blur the input video without impacting the outlines.
                                  模糊處理輸入視頻而不影響輪廓.
 ... split             V->N       Pass on the input to N video outputs.
                                  輸入的視頻分配給N個相同的視頻輸出.
 T.C spp               V->V       Apply a simple post processing filter.
                                  簡單的后處理濾鏡,設置壓縮品質對視頻進行壓縮.
 ... ssim              VV->V      Calculate the SSIM between two video streams.
                                  計算兩個輸入視頻之間的結構相似度(SSIM).
 .S. stereo3d          V->V       Convert video stereoscopic 3D view.
                                  視頻轉換成具有不同立體圖像格式的三維視覺視頻.
 ..C streamselect      N->N       Select video streams
                                  多個輸入視頻流中選擇一個視頻流,若干個具有相同時間長度的媒體有效.
 ... subtitles         V->V       Render text subtitles onto input video using the libass library.
                                  使用 libass 程序庫輸入視頻上繪制字幕.
 ... super2xsai        V->V       Scale the input by 2x using the Super2xSaI pixel art algorithm.
                                  利用像素藝術擴展算法把輸入視頻平滑放大兩倍.
 T.. swaprect          V->V       Swap 2 rectangular objects in video.
                                  視頻流中交換兩個矩形對象.
 ... swapuv            V->V       Swap U and V components.
                                  交換 U 和 V 映射平面分量.
 .S. tblend            V->V       Blend successive frames.
                                  兩個視頻幀混合到另一個幀上.
 ... telecine          V->V       Apply a telecine pattern.
                                  使用電視電影模式,顏色邊界有鋸齒效果.
 ... thumbnail         V->V       Select the most representative frame in a given sequence of consecutive frames.
                                  在給定的連續幀序列中選擇具有代表性幀.
 ... tile              V->V       Tile several successive frames together.
                                  瓦狀布局若干個連續的幀,類似視頻縮略圖.
 ... tinterlace        V->V       Perform temporal field interlacing.
                                  使用不同的隔行模式處理每一個幀.
 .S. transpose         V->V       Transpose input video.
                                  翻轉輸入視頻,默認垂直翻轉.
 ... trim              V->V       Pick one continuous section from the input, drop the rest.
                                  從輸入視頻中挑選連續的組成部分,一直到結束.
 T.. unsharp           V->V       Sharpen or blur the input video.
                                  銳化或模糊處理輸入視頻.
 T.. uspp              V->V       Apply Ultra Simple / Slow Post-processing filter.
                                  超慢/簡單的后處理濾鏡,設置壓縮品質對視頻進行壓縮.
 ... vectorscope       V->V       Video vectorscope.
                                  顯示輸入視頻的兩個顏色分量值的二維圖(矢量顯示).
 ... vflip             V->V       Flip the input video vertically.
                                  垂直翻轉顯示輸入視頻.
 ... vidstabdetect     V->V       Extract relative transformations,for stabilization.
                                  提取視頻的相對地變化,繪制矩形圖矩陣內的箭頭方向來顯示變化趨勢.
 ... vidstabtransform  V->V       Video stabilization/deshaking.
                                  平滑/反銳化處理視頻.
 T.. vignette          V->V       Make or reverse a vignette effect.
                                  生成或扭轉鏡頭自然漸暈效果.
 ... vstack            N->V       Stack video inputs vertically.
                                  把若干個輸入視頻垂直放置,所有視頻的像素格式和寬度必須相同.
 TS. w3fdif            V->V       Apply Martin Weston three field deinterlace.
                                  使用馬丁韋斯頓三場反隔行濾鏡。
 ... waveform          V->V       Video waveform monitor.
                                  視頻波形監視器.
 .S. xbr               V->V       Scale the input using xBR algorithm.
                                  應用xBR算法放大輸入視頻,默認是放大三倍.
 TS. yadif             V->V       Deinterlace the input image.
                                  對輸入圖像進行反隔行處理.
 T.. zoompan           V->V       Apply Zoom & Pan effect.
                                  用於縮放和填充效果.
 ..C zscale            V->V       Apply resizing, colorspace and bit depth conversion.
                                  用於重新調整大小,改變色隙和色彩深度.
 ... allrgb            |->V       Generate all RGB colors.
                                  生成大小為 4096x4096 的包含所有 RGB 顏色表,需要大量內存.
 ... allyuv            |->V       Generate all yuv colors.
                                  生成大小為 4096x4096 的包含所有 yuv 顏色表,需要大量內存.
 ... cellauto          |->V       Create pattern generated by an elementary cellular automaton.
                                  利用初級多孔自動生成器創建一個圖案,指定模式生成無數小三角形矩陣.
 ..C color             |->V       Provide an uniformly colored input.
                                  提供了一個單色輸入視頻源.
 ... frei0r_src        |->V       Generate a frei0r source.
                                  提供frei0r接口,frei0r是ffmpeg的子濾鏡.
 ... haldclutsrc       |->V       Provide an identity Hald CLUT.
                                  給哈爾德查色表源提供單位特征.
 ... life              |->V       Create life.
                                  生成隨機花紋的圖案.
 ... mandelbrot        |->V       Render a Mandelbrot fractal.
                                  生成一個曼德爾勃特集合分形,逐漸放大到指定點.
 ... mptestsrc         |->V       Generate various test pattern.
                                  生成各種測試圖案,靜/動態小方塊矩陣和圓形圖案.
 ... nullsrc           |->V       Null video source, return unprocessed video frames.
                                  生成空視頻源,返回未處理的空視頻幀.
 ... rgbtestsrc        |->V       Generate RGB test pattern.
                                  生成 RGB 測試圖案,橫向紅綠藍三條圖案.
 ... smptebars         |->V       Generate SMPTE color bars.
                                  生成 SMPTE 顏色條圖案,像電視測試信號視頻.
 ... smptehdbars       |->V       Generate SMPTE HD color bars.
                                  生成 SMPTE HD 顏色條圖案.
 ... testsrc           |->V       Generate test pattern.
                                  生成測試圖案.
 ... testsrc2          |->V       Generate another test pattern.
                                  生成另一個測試圖案.
 ... nullsink          V->|       Do absolutely nothing with the input video.
                                  生成空視頻模板,與輸入視頻無關.
 ... concat            N->N       Concatenate audio and video streams.
                                  連接音頻和視頻流.
 ... movie             |->N       Read from a movie source.
                                  從視頻源讀入視頻.
 ... buffer            |->V       Buffer video frames, and make them accessible to the filterchain.
                                  緩沖視頻幀,並用於濾鏡鏈.
 ... buffersink        V->|       Buffer video frames, and make them available to the end of the filter graph.
                                  緩沖視頻幀,並用於濾鏡圖的結束.
 ... fifo              V->V       Buffer input images and send them when they are requested.
                                  緩沖輸入幀,若需要時.