snow encoder AVOptions:

  -motion_est        <int>        E..V...... motion estimation algorithm (from 0 to 3) (default epzs)

     zero            0            E..V......

     epzs            1            E..V......

     xone            2            E..V......

     iter            3            E..V......

  -memc_only         <boolean>    E..V...... Only do ME/MC (I frames -> ref, P frame -> ME+MC). (default false)

  -no_bitstream      <boolean>    E..V...... Skip final bitstream writeout. (default false)

  -intra_penalty     <int>        E..V...... Penalty for intra blocks in block decission (from 0 to INT_MAX) (default 0)

  -iterative_dia_size <int>        E..V...... Dia size for the iterative ME (from 0 to INT_MAX) (default 0)

  -sc_threshold      <int>        E..V...... Scene change threshold (from INT_MIN to INT_MAX) (default 0)

  -pred              <int>        E..V...... Spatial decomposition type (from 0 to 1) (default dwt97)

     dwt97           0            E..V......

     dwt53           1            E..V......


sunrast AVOptions:

  -rle               <int>        E..V...... Use run-length compression (from 0 to 1) (default 1)


svq1enc AVOptions:

  -motion-est        <int>        E..V...... Motion estimation algorithm (from 0 to 2) (default epzs)

     zero            0            E..V......

     epzs            1            E..V......

     xone            2            E..V......


targa AVOptions:

  -rle               <int>        E..V...... Use run-length compression (from 0 to 1) (default 1)


TIFF encoder AVOptions:

  -dpi               <int>        E..V...... set the image resolution (in dpi) (from 1 to 65536) (default 72)

  -compression_algo  <int>        E..V...... (from 1 to 32946) (default packbits)

     packbits        32773        E..V......

     raw             1            E..V......

     lzw             5            E..V......

     deflate         32946        E..V......


utvideo AVOptions:

  -pred              <int>        E..V...... Prediction method (from 0 to 3) (default left)

     none            0            E..V......

     left            1            E..V......

     gradient        2            E..V......

     median          3            E..V......


SMPTE VC-2 encoder AVOptions:

  -tolerance         <double>     E..V...... Max undershoot in percent (from 0 to 45) (default 5)

  -slice_width       <int>        E..V...... Slice width (from 32 to 1024) (default 32)

  -slice_height      <int>        E..V...... Slice height (from 8 to 1024) (default 16)

  -wavelet_depth     <int>        E..V...... Transform depth (from 1 to 5) (default 4)

  -wavelet_type      <int>        E..V...... Transform type (from 0 to 7) (default 9_7)

     9_7             0            E..V...... Deslauriers-Dubuc (9,7)

     5_3             1            E..V...... LeGall (5,3)

     haar            4            E..V...... Haar (with shift)

     haar_noshift    3            E..V...... Haar (without shift)

  -qm                <int>        E..V...... Custom quantization matrix (from 0 to 3) (default default)

     default         0            E..V...... Default from the specifications

     color           1            E..V...... Prevents low bitrate discoloration

     flat            2            E..V...... Optimize for PSNR


wmv1 encoder AVOptions:

  -mpv_flags         <flags>      E..V...... Flags common for all mpegvideo-based encoders. (default 0)

     skip_rd                      E..V...... RD optimal MB level residual skipping

     strict_gop                   E..V...... Strictly enforce gop size

     qp_rd                        E..V...... Use rate distortion optimization for qp selection

     cbp_rd                       E..V...... use rate distortion optimization for CBP

     naq                          E..V...... normalize adaptive quantization

     mv0                          E..V...... always try a mb with mv=<0,0>

  -luma_elim_threshold <int>        E..V...... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)

  -chroma_elim_threshold <int>        E..V...... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)

  -quantizer_noise_shaping <int>        E..V...... (from 0 to INT_MAX) (default 0)

  -error_rate        <int>        E..V...... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)

  -qsquish           <float>      E..V...... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)

  -rc_qmod_amp       <float>      E..V...... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)

  -rc_qmod_freq      <int>        E..V...... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)

  -rc_eq             <string>     E..V...... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.

  -rc_init_cplx      <float>      E..V...... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)

  -rc_buf_aggressivity <float>      E..V...... currently useless (from -FLT_MAX to FLT_MAX) (default 1)

  -border_mask       <float>      E..V...... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)

  -lmin              <int>        E..V...... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)

  -lmax              <int>        E..V...... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)

  -ibias             <int>        E..V...... intra quant bias (from INT_MIN to INT_MAX) (default 999999)

  -pbias             <int>        E..V...... inter quant bias (from INT_MIN to INT_MAX) (default 999999)

  -rc_strategy       <int>        E..V...... ratecontrol method (from 0 to 1) (default ffmpeg)

     ffmpeg          0            E..V...... deprecated, does nothing

     xvid            0            E..V...... deprecated, does nothing

  -motion_est        <int>        E..V...... motion estimation algorithm (from 0 to 2) (default epzs)

     zero            0            E..V......

     epzs            1            E..V......

     xone            2            E..V......

  -force_duplicated_matrix <boolean>    E..V...... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)

  -b_strategy        <int>        E..V...... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)

  -b_sensitivity     <int>        E..V...... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)

  -brd_scale         <int>        E..V...... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)

  -skip_threshold    <int>        E..V...... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)

  -skip_factor       <int>        E..V...... Frame skip factor (from INT_MIN to INT_MAX) (default 0)

  -skip_exp          <int>        E..V...... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)

  -skip_cmp          <int>        E..V...... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)

     sad             0            E..V...... Sum of absolute differences, fast

     sse             1            E..V...... Sum of squared errors

     satd            2            E..V...... Sum of absolute Hadamard transformed differences

     dct             3            E..V...... Sum of absolute DCT transformed differences

     psnr            4            E..V...... Sum of squared quantization errors, low quality

     bit             5            E..V...... Number of bits needed for the block

     rd              6            E..V...... Rate distortion optimal, slow

     zero            7            E..V...... Zero

     vsad            8            E..V...... Sum of absolute vertical differences

     vsse            9            E..V...... Sum of squared vertical differences

     nsse            10           E..V...... Noise preserving sum of squared differences

     dct264          14           E..V......

     dctmax          13           E..V......

     chroma          256          E..V......

     msad            15           E..V...... Sum of absolute differences, median predicted

  -sc_threshold      <int>        E..V...... Scene change threshold (from INT_MIN to INT_MAX) (default 0)

  -noise_reduction   <int>        E..V...... Noise reduction (from INT_MIN to INT_MAX) (default 0)

  -mpeg_quant        <int>        E..V...... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)

  -ps                <int>        E..V...... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)

  -mepc              <int>        E..V...... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)

  -mepre             <int>        E..V...... pre motion estimation (from INT_MIN to INT_MAX) (default 0)

  -intra_penalty     <int>        E..V...... Penalty for intra blocks in block decision (from 0 to 1.07374e+09) (default 0)

  -a53cc             <boolean>    E..V...... Use A53 Closed Captions (if available) (default true)


wmv2 encoder AVOptions:

  -mpv_flags         <flags>      E..V...... Flags common for all mpegvideo-based encoders. (default 0)

     skip_rd                      E..V...... RD optimal MB level residual skipping

     strict_gop                   E..V...... Strictly enforce gop size

     qp_rd                        E..V...... Use rate distortion optimization for qp selection

     cbp_rd                       E..V...... use rate distortion optimization for CBP

     naq                          E..V...... normalize adaptive quantization

     mv0                          E..V...... always try a mb with mv=<0,0>

  -luma_elim_threshold <int>        E..V...... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)

  -chroma_elim_threshold <int>        E..V...... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)

  -quantizer_noise_shaping <int>        E..V...... (from 0 to INT_MAX) (default 0)

  -error_rate        <int>        E..V...... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)

  -qsquish           <float>      E..V...... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)

  -rc_qmod_amp       <float>      E..V...... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)

  -rc_qmod_freq      <int>        E..V...... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)

  -rc_eq             <string>     E..V...... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.

  -rc_init_cplx      <float>      E..V...... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)

  -rc_buf_aggressivity <float>      E..V...... currently useless (from -FLT_MAX to FLT_MAX) (default 1)

  -border_mask       <float>      E..V...... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)

  -lmin              <int>        E..V...... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)

  -lmax              <int>        E..V...... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)

  -ibias             <int>        E..V...... intra quant bias (from INT_MIN to INT_MAX) (default 999999)

  -pbias             <int>        E..V...... inter quant bias (from INT_MIN to INT_MAX) (default 999999)

  -rc_strategy       <int>        E..V...... ratecontrol method (from 0 to 1) (default ffmpeg)

     ffmpeg          0            E..V...... deprecated, does nothing

     xvid            0            E..V...... deprecated, does nothing

  -motion_est        <int>        E..V...... motion estimation algorithm (from 0 to 2) (default epzs)

     zero            0            E..V......

     epzs            1            E..V......

     xone            2            E..V......

  -force_duplicated_matrix <boolean>    E..V...... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)

  -b_strategy        <int>        E..V...... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)

  -b_sensitivity     <int>        E..V...... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)

  -brd_scale         <int>        E..V...... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)

  -skip_threshold    <int>        E..V...... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)

  -skip_factor       <int>        E..V...... Frame skip factor (from INT_MIN to INT_MAX) (default 0)

  -skip_exp          <int>        E..V...... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)

  -skip_cmp          <int>        E..V...... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)

     sad             0            E..V...... Sum of absolute differences, fast

     sse             1            E..V...... Sum of squared errors

     satd            2            E..V...... Sum of absolute Hadamard transformed differences

     dct             3            E..V...... Sum of absolute DCT transformed differences

     psnr            4            E..V...... Sum of squared quantization errors, low quality

     bit             5            E..V...... Number of bits needed for the block

     rd              6            E..V...... Rate distortion optimal, slow

     zero            7            E..V...... Zero

     vsad            8            E..V...... Sum of absolute vertical differences

     vsse            9            E..V...... Sum of squared vertical differences

     nsse            10           E..V...... Noise preserving sum of squared differences

     dct264          14           E..V......

     dctmax          13           E..V......

     chroma          256          E..V......

     msad            15           E..V...... Sum of absolute differences, median predicted

  -sc_threshold      <int>        E..V...... Scene change threshold (from INT_MIN to INT_MAX) (default 0)

  -noise_reduction   <int>        E..V...... Noise reduction (from INT_MIN to INT_MAX) (default 0)

  -mpeg_quant        <int>        E..V...... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)

  -ps                <int>        E..V...... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)

  -mepc              <int>        E..V...... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)

  -mepre             <int>        E..V...... pre motion estimation (from INT_MIN to INT_MAX) (default 0)

  -intra_penalty     <int>        E..V...... Penalty for intra blocks in block decision (from 0 to 1.07374e+09) (default 0)

  -a53cc             <boolean>    E..V...... Use A53 Closed Captions (if available) (default true)


AAC encoder AVOptions:

  -aac_coder         <int>        E...A..... Coding algorithm (from 0 to 2) (default fast)

     anmr            0            E...A..... ANMR method

     twoloop         1            E...A..... Two loop searching method

     fast            2            E...A..... Default fast search

  -aac_ms            <boolean>    E...A..... Force M/S stereo coding (default auto)

  -aac_is            <boolean>    E...A..... Intensity stereo coding (default true)

  -aac_pns           <boolean>    E...A..... Perceptual noise substitution (default true)

  -aac_tns           <boolean>    E...A..... Temporal noise shaping (default true)

  -aac_ltp           <boolean>    E...A..... Long term prediction (default false)

  -aac_pred          <boolean>    E...A..... AAC-Main prediction (default false)

  -aac_pce           <boolean>    E...A..... Forces the use of PCEs (default false)


AC-3 Encoder AVOptions:

  -per_frame_metadata <boolean>    E...A..... Allow Changing Metadata Per-Frame (default false)

  -center_mixlev     <float>      E...A..... Center Mix Level (from 0 to 1) (default 0.594604)

  -surround_mixlev   <float>      E...A..... Surround Mix Level (from 0 to 1) (default 0.5)

  -mixing_level      <int>        E...A..... Mixing Level (from -1 to 111) (default -1)

  -room_type         <int>        E...A..... Room Type (from -1 to 2) (default -1)

     notindicated    0            E...A..... Not Indicated (default)

     large           1            E...A..... Large Room

     small           2            E...A..... Small Room

  -copyright         <int>        E...A..... Copyright Bit (from -1 to 1) (default -1)

  -dialnorm          <int>        E...A..... Dialogue Level (dB) (from -31 to -1) (default -31)

  -dsur_mode         <int>        E...A..... Dolby Surround Mode (from -1 to 2) (default -1)

     notindicated    0            E...A..... Not Indicated (default)

     on              2            E...A..... Dolby Surround Encoded

     off             1            E...A..... Not Dolby Surround Encoded

  -original          <int>        E...A..... Original Bit Stream (from -1 to 1) (default -1)

  -dmix_mode         <int>        E...A..... Preferred Stereo Downmix Mode (from -1 to 3) (default -1)

     notindicated    0            E...A..... Not Indicated (default)

     ltrt            1            E...A..... Lt/Rt Downmix Preferred

     loro            2            E...A..... Lo/Ro Downmix Preferred

     dplii           3            E...A..... Dolby Pro Logic II Downmix Preferred

  -ltrt_cmixlev      <float>      E...A..... Lt/Rt Center Mix Level (from -1 to 2) (default -1)

  -ltrt_surmixlev    <float>      E...A..... Lt/Rt Surround Mix Level (from -1 to 2) (default -1)

  -loro_cmixlev      <float>      E...A..... Lo/Ro Center Mix Level (from -1 to 2) (default -1)

  -loro_surmixlev    <float>      E...A..... Lo/Ro Surround Mix Level (from -1 to 2) (default -1)

  -dsurex_mode       <int>        E...A..... Dolby Surround EX Mode (from -1 to 3) (default -1)

     notindicated    0            E...A..... Not Indicated (default)

     on              2            E...A..... Dolby Surround EX Encoded

     off             1            E...A..... Not Dolby Surround EX Encoded

     dpliiz          3            E...A..... Dolby Pro Logic IIz-encoded

  -dheadphone_mode   <int>        E...A..... Dolby Headphone Mode (from -1 to 2) (default -1)

     notindicated    0            E...A..... Not Indicated (default)

     on              2            E...A..... Dolby Headphone Encoded

     off             1            E...A..... Not Dolby Headphone Encoded

  -ad_conv_type      <int>        E...A..... A/D Converter Type (from -1 to 1) (default -1)

     standard        0            E...A..... Standard (default)

     hdcd            1            E...A..... HDCD

  -stereo_rematrixing <boolean>    E...A..... Stereo Rematrixing (default true)

  -channel_coupling  <int>        E...A..... Channel Coupling (from -1 to 1) (default auto)

     auto            -1           E...A..... Selected by the Encoder

  -cpl_start_band    <int>        E...A..... Coupling Start Band (from -1 to 15) (default auto)

     auto            -1           E...A..... Selected by the Encoder


Fixed-Point AC-3 Encoder AVOptions:

  -per_frame_metadata <boolean>    E...A..... Allow Changing Metadata Per-Frame (default false)

  -center_mixlev     <float>      E...A..... Center Mix Level (from 0 to 1) (default 0.594604)

  -surround_mixlev   <float>      E...A..... Surround Mix Level (from 0 to 1) (default 0.5)

  -mixing_level      <int>        E...A..... Mixing Level (from -1 to 111) (default -1)

  -room_type         <int>        E...A..... Room Type (from -1 to 2) (default -1)

     notindicated    0            E...A..... Not Indicated (default)

     large           1            E...A..... Large Room

     small           2            E...A..... Small Room

  -copyright         <int>        E...A..... Copyright Bit (from -1 to 1) (default -1)

  -dialnorm          <int>        E...A..... Dialogue Level (dB) (from -31 to -1) (default -31)

  -dsur_mode         <int>        E...A..... Dolby Surround Mode (from -1 to 2) (default -1)

     notindicated    0            E...A..... Not Indicated (default)

     on              2            E...A..... Dolby Surround Encoded

     off             1            E...A..... Not Dolby Surround Encoded

  -original          <int>        E...A..... Original Bit Stream (from -1 to 1) (default -1)

  -dmix_mode         <int>        E...A..... Preferred Stereo Downmix Mode (from -1 to 3) (default -1)

     notindicated    0            E...A..... Not Indicated (default)

     ltrt            1            E...A..... Lt/Rt Downmix Preferred

     loro            2            E...A..... Lo/Ro Downmix Preferred

     dplii           3            E...A..... Dolby Pro Logic II Downmix Preferred

  -ltrt_cmixlev      <float>      E...A..... Lt/Rt Center Mix Level (from -1 to 2) (default -1)

  -ltrt_surmixlev    <float>      E...A..... Lt/Rt Surround Mix Level (from -1 to 2) (default -1)

  -loro_cmixlev      <float>      E...A..... Lo/Ro Center Mix Level (from -1 to 2) (default -1)

  -loro_surmixlev    <float>      E...A..... Lo/Ro Surround Mix Level (from -1 to 2) (default -1)

  -dsurex_mode       <int>        E...A..... Dolby Surround EX Mode (from -1 to 3) (default -1)

     notindicated    0            E...A..... Not Indicated (default)

     on              2            E...A..... Dolby Surround EX Encoded

     off             1            E...A..... Not Dolby Surround EX Encoded

     dpliiz          3            E...A..... Dolby Pro Logic IIz-encoded

  -dheadphone_mode   <int>        E...A..... Dolby Headphone Mode (from -1 to 2) (default -1)

     notindicated    0            E...A..... Not Indicated (default)

     on              2            E...A..... Dolby Headphone Encoded

     off             1            E...A..... Not Dolby Headphone Encoded

  -ad_conv_type      <int>        E...A..... A/D Converter Type (from -1 to 1) (default -1)

     standard        0            E...A..... Standard (default)

     hdcd            1            E...A..... HDCD

  -stereo_rematrixing <boolean>    E...A..... Stereo Rematrixing (default true)

  -channel_coupling  <int>        E...A..... Channel Coupling (from -1 to 1) (default auto)

     auto            -1           E...A..... Selected by the Encoder

  -cpl_start_band    <int>        E...A..... Coupling Start Band (from -1 to 15) (default auto)

     auto            -1           E...A..... Selected by the Encoder


alacenc AVOptions:

  -min_prediction_order <int>        E...A..... (from 1 to 30) (default 4)

  -max_prediction_order <int>        E...A..... (from 1 to 30) (default 6)


DCA (DTS Coherent Acoustics) AVOptions:

  -dca_adpcm         <boolean>    E...A..... Use ADPCM encoding (default false)


E-AC-3 Encoder AVOptions:

  -per_frame_metadata <boolean>    E...A..... Allow Changing Metadata Per-Frame (default false)

  -mixing_level      <int>        E...A..... Mixing Level (from -1 to 111) (default -1)

  -room_type         <int>        E...A..... Room Type (from -1 to 2) (default -1)

     notindicated    0            E...A..... Not Indicated (default)

     large           1            E...A..... Large Room

     small           2            E...A..... Small Room

  -copyright         <int>        E...A..... Copyright Bit (from -1 to 1) (default -1)

  -dialnorm          <int>        E...A..... Dialogue Level (dB) (from -31 to -1) (default -31)

  -dsur_mode         <int>        E...A..... Dolby Surround Mode (from -1 to 2) (default -1)

     notindicated    0            E...A..... Not Indicated (default)

     on              2            E...A..... Dolby Surround Encoded

     off             1            E...A..... Not Dolby Surround Encoded

  -original          <int>        E...A..... Original Bit Stream (from -1 to 1) (default -1)

  -dmix_mode         <int>        E...A..... Preferred Stereo Downmix Mode (from -1 to 3) (default -1)

     notindicated    0            E...A..... Not Indicated (default)

     ltrt            1            E...A..... Lt/Rt Downmix Preferred

     loro            2            E...A..... Lo/Ro Downmix Preferred

     dplii           3            E...A..... Dolby Pro Logic II Downmix Preferred

  -ltrt_cmixlev      <float>      E...A..... Lt/Rt Center Mix Level (from -1 to 2) (default -1)

  -ltrt_surmixlev    <float>      E...A..... Lt/Rt Surround Mix Level (from -1 to 2) (default -1)

  -loro_cmixlev      <float>      E...A..... Lo/Ro Center Mix Level (from -1 to 2) (default -1)

  -loro_surmixlev    <float>      E...A..... Lo/Ro Surround Mix Level (from -1 to 2) (default -1)

  -dsurex_mode       <int>        E...A..... Dolby Surround EX Mode (from -1 to 3) (default -1)

     notindicated    0            E...A..... Not Indicated (default)

     on              2            E...A..... Dolby Surround EX Encoded

     off             1            E...A..... Not Dolby Surround EX Encoded

     dpliiz          3            E...A..... Dolby Pro Logic IIz-encoded

  -dheadphone_mode   <int>        E...A..... Dolby Headphone Mode (from -1 to 2) (default -1)

     notindicated    0            E...A..... Not Indicated (default)

     on              2            E...A..... Dolby Headphone Encoded

     off             1            E...A..... Not Dolby Headphone Encoded

  -ad_conv_type      <int>        E...A..... A/D Converter Type (from -1 to 1) (default -1)

     standard        0            E...A..... Standard (default)

     hdcd            1            E...A..... HDCD

  -stereo_rematrixing <boolean>    E...A..... Stereo Rematrixing (default true)

  -channel_coupling  <int>        E...A..... Channel Coupling (from -1 to 1) (default auto)

     auto            -1           E...A..... Selected by the Encoder

  -cpl_start_band    <int>        E...A..... Coupling Start Band (from -1 to 15) (default auto)

     auto            -1           E...A..... Selected by the Encoder


FLAC encoder AVOptions:

  -lpc_coeff_precision <int>        E...A..... LPC coefficient precision (from 0 to 15) (default 15)

  -lpc_type          <int>        E...A..... LPC algorithm (from -1 to 3) (default -1)

     none            0            E...A.....

     fixed           1            E...A.....

     levinson        2            E...A.....

     cholesky        3            E...A.....

  -lpc_passes        <int>        E...A..... Number of passes to use for Cholesky factorization during LPC analysis (from 1 to INT_MAX) (default 2)

  -min_partition_order <int>        E...A..... (from -1 to 8) (default -1)

  -max_partition_order <int>        E...A..... (from -1 to 8) (default -1)

  -prediction_order_method <int>        E...A..... Search method for selecting prediction order (from -1 to 5) (default -1)

     estimation      0            E...A.....

     2level          1            E...A.....

     4level          2            E...A.....

     8level          3            E...A.....

     search          4            E...A.....

     log             5            E...A.....

  -ch_mode           <int>        E...A..... Stereo decorrelation mode (from -1 to 3) (default auto)

     auto            -1           E...A.....

     indep           0            E...A.....

     left_side       1            E...A.....

     right_side      2            E...A.....

     mid_side        3            E...A.....

  -exact_rice_parameters <boolean>    E...A..... Calculate rice parameters exactly (default false)

  -multi_dim_quant   <boolean>    E...A..... Multi-dimensional quantization (default false)

  -min_prediction_order <int>        E...A..... (from -1 to 32) (default -1)

  -max_prediction_order <int>        E...A..... (from -1 to 32) (default -1)


Opus encoder AVOptions:

  -opus_delay        <float>      E...A..... Maximum delay in milliseconds (from 2.5 to 360) (default 360)

  -apply_phase_inv   <boolean>    E...A..... Apply intensity stereo phase inversion (default true)


sbc encoder AVOptions:

  -sbc_delay         <duration>   E...A..... set maximum algorithmic latency (default 0.013)

  -msbc              <boolean>    E...A..... use mSBC mode (wideband speech mono SBC) (default false)


WavPack encoder AVOptions:

  -joint_stereo      <boolean>    E...A.....  (default auto)

  -optimize_mono     <boolean>    E...A.....  (default false)


g726 AVOptions:

  -code_size         <int>        E...A..... Bits per code (from 2 to 5) (default 4)


g726le AVOptions:

  -code_size         <int>        E...A..... Bits per code (from 2 to 5) (default 4)


VOBSUB subtitle encoder AVOptions:

  -palette           <string>     E....S.... set the global palette

  -even_rows_fix     <boolean>    E....S.... Make number of rows even (workaround for some players) (default false)


MOV text enoder AVOptions:

  -height            <int>        E....S.... Frame height, usually video height (from 0 to INT_MAX) (default 0)


libaom-av1 encoder AVOptions:

  -cpu-used          <int>        E..V...... Quality/Speed ratio modifier (from 0 to 8) (default 1)

  -auto-alt-ref      <int>        E..V...... Enable use of alternate reference frames (2-pass only) (from -1 to 2) (default -1)

  -lag-in-frames     <int>        E..V...... Number of frames to look ahead at for alternate reference frame selection (from -1 to INT_MAX) (default -1)

  -arnr-max-frames   <int>        E..V...... altref noise reduction max frame count (from -1 to INT_MAX) (default -1)

  -arnr-strength     <int>        E..V...... altref noise reduction filter strength (from -1 to 6) (default -1)

  -aq-mode           <int>        E..V...... adaptive quantization mode (from -1 to 4) (default -1)

     none            0            E..V...... Aq not used

     variance        1            E..V...... Variance based Aq

     complexity      2            E..V...... Complexity based Aq

     cyclic          3            E..V...... Cyclic Refresh Aq

  -error-resilience  <flags>      E..V...... Error resilience configuration (default 0)

     default                      E..V...... Improve resiliency against losses of whole frames

  -crf               <int>        E..V...... Select the quality for constant quality mode (from -1 to 63) (default -1)

  -static-thresh     <int>        E..V...... A change threshold on blocks below which they will be skipped by the encoder (from 0 to INT_MAX) (default 0)

  -drop-threshold    <int>        E..V...... Frame drop threshold (from INT_MIN to INT_MAX) (default 0)

  -denoise-noise-level <int>        E..V...... Amount of noise to be removed (from -1 to INT_MAX) (default -1)

  -denoise-block-size <int>        E..V...... Denoise block size  (from -1 to INT_MAX) (default -1)

  -undershoot-pct    <int>        E..V...... Datarate undershoot (min) target (%) (from -1 to 100) (default -1)

  -overshoot-pct     <int>        E..V...... Datarate overshoot (max) target (%) (from -1 to 1000) (default -1)

  -minsection-pct    <int>        E..V...... GOP min bitrate (% of target) (from -1 to 100) (default -1)

  -maxsection-pct    <int>        E..V...... GOP max bitrate (% of target) (from -1 to 5000) (default -1)

  -frame-parallel    <boolean>    E..V...... Enable frame parallel decodability features (default auto)

  -tiles             <image_size> E..V...... Tile columns x rows

  -tile-columns      <int>        E..V...... Log2 of number of tile columns to use (from -1 to 6) (default -1)

  -tile-rows         <int>        E..V...... Log2 of number of tile rows to use (from -1 to 6) (default -1)

  -row-mt            <boolean>    E..V...... Enable row based multi-threading (default auto)

  -enable-cdef       <boolean>    E..V...... Enable CDEF filtering (default auto)

  -enable-global-motion <boolean>    E..V...... Enable global motion (default auto)

  -enable-intrabc    <boolean>    E..V...... Enable intra block copy prediction mode (default auto)

  -enable-restoration <boolean>    E..V...... Enable Loop Restoration filtering (default auto)

  -usage             <int>        E..V...... Quality and compression efficiency vs speed trade-off (from 0 to INT_MAX) (default good)

     good            0            E..V...... Good quality

     realtime        1            E..V...... Realtime encoding

  -tune              <int>        E..V...... The metric that the encoder tunes for. Automatically chosen by the encoder by default (from -1 to 1) (default -1)

     psnr            0            E..V......

     ssim            1            E..V......

  -enable-rect-partitions <boolean>    E..V...... Enable rectangular partitions (default auto)

  -enable-1to4-partitions <boolean>    E..V...... Enable 1:4/4:1 partitions (default auto)

  -enable-ab-partitions <boolean>    E..V...... Enable ab shape partitions (default auto)

  -enable-angle-delta <boolean>    E..V...... Enable angle delta intra prediction (default auto)

  -enable-cfl-intra  <boolean>    E..V...... Enable chroma predicted from luma intra prediction (default auto)

  -enable-filter-intra <boolean>    E..V...... Enable filter intra predictor (default auto)

  -enable-intra-edge-filter <boolean>    E..V...... Enable intra edge filter (default auto)

  -enable-smooth-intra <boolean>    E..V...... Enable smooth intra prediction mode (default auto)

  -enable-paeth-intra <boolean>    E..V...... Enable paeth predictor in intra prediction (default auto)

  -enable-palette    <boolean>    E..V...... Enable palette prediction mode (default auto)


libmp3lame encoder AVOptions:

  -reservoir         <boolean>    E...A..... use bit reservoir (default true)

  -joint_stereo      <boolean>    E...A..... use joint stereo (default true)

  -abr               <boolean>    E...A..... use ABR (default false)