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ffmpeg -h encoder=h264_qsv
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| Encoder h264_qsv [H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (Intel Quick Sync Video acceleration)]: | |
| General capabilities: delay hybrid | |
| Threading capabilities: none | |
| Supported hardware devices: qsv qsv qsv | |
| Supported pixel formats: nv12 qsv | |
| h264_qsv encoder AVOptions: | |
| -async_depth <int> E..V....... Maximum processing parallelism (from 1 to INT_MAX) (default 4) | |
| -preset <int> E..V....... (from 0 to 7) (default 0) | |
| veryfast 7 E..V....... | |
| faster 6 E..V....... | |
| fast 5 E..V....... | |
| medium 4 E..V....... | |
| slow 3 E..V....... | |
| slower 2 E..V....... | |
| veryslow 1 E..V....... | |
| -forced_idr <boolean> E..V....... Forcing I frames as IDR frames (default false) | |
| -low_power <boolean> E..V....... enable low power mode(experimental: many limitations by mfx version, BRC modes, etc.) (default auto) | |
| -qsv_params <dictionary> E..V....... Set QSV encoder parameters as key1=value1:key2=value2:... | |
| -rdo <int> E..V....... Enable rate distortion optimization (from -1 to 1) (default -1) | |
| -max_frame_size <int> E..V....... Maximum encoded frame size in bytes (from -1 to INT_MAX) (default -1) | |
| -max_frame_size_i <int> E..V....... Maximum encoded I frame size in bytes (from -1 to INT_MAX) (default -1) | |
| -max_frame_size_p <int> E..V....... Maximum encoded P frame size in bytes (from -1 to INT_MAX) (default -1) | |
| -max_slice_size <int> E..V....... Maximum encoded slice size in bytes (from -1 to INT_MAX) (default -1) | |
| -bitrate_limit <int> E..V....... Toggle bitrate limitations (from -1 to 1) (default -1) | |
| -mbbrc <int> E..V....... MB level bitrate control (from -1 to 1) (default -1) | |
| -extbrc <int> E..V....... Extended bitrate control (from -1 to 1) (default -1) | |
| -adaptive_i <int> E..V....... Adaptive I-frame placement (from -1 to 1) (default -1) | |
| -adaptive_b <int> E..V....... Adaptive B-frame placement (from -1 to 1) (default -1) | |
| -p_strategy <int> E..V....... Enable P-pyramid: 0-default 1-simple 2-pyramid(bf need to be set to 0). (from 0 to 2) (default 0) | |
| -b_strategy <int> E..V....... Strategy to choose between I/P/B-frames (from -1 to 1) (default -1) | |
| -dblk_idc <int> E..V....... This option disable deblocking. It has value in range 0~2. (from 0 to 2) (default 0) | |
| -low_delay_brc <boolean> E..V....... Allow to strictly obey avg frame size (default auto) | |
| -max_qp_i <int> E..V....... Maximum video quantizer scale for I frame (from -1 to 51) (default -1) | |
| -min_qp_i <int> E..V....... Minimum video quantizer scale for I frame (from -1 to 51) (default -1) | |
| -max_qp_p <int> E..V....... Maximum video quantizer scale for P frame (from -1 to 51) (default -1) | |
| -min_qp_p <int> E..V....... Minimum video quantizer scale for P frame (from -1 to 51) (default -1) | |
| -max_qp_b <int> E..V....... Maximum video quantizer scale for B frame (from -1 to 51) (default -1) | |
| -min_qp_b <int> E..V....... Minimum video quantizer scale for B frame (from -1 to 51) (default -1) | |
| -scenario <int> E..V....... A hint to encoder about the scenario for the encoding session (from 0 to 8) (default unknown) | |
| unknown 0 E..V....... | |
| displayremoting 1 E..V....... | |
| videoconference 2 E..V....... | |
| archive 3 E..V....... | |
| livestreaming 4 E..V....... | |
| cameracapture 5 E..V....... | |
| videosurveillance 6 E..V....... | |
| gamestreaming 7 E..V....... | |
| remotegaming 8 E..V....... | |
| -avbr_accuracy <int> E..V....... Accuracy of the AVBR ratecontrol (unit of tenth of percent) (from 0 to 65535) (default 0) | |
| -avbr_convergence <int> E..V....... Convergence of the AVBR ratecontrol (unit of 100 frames) (from 0 to 65535) (default 0) | |
| -skip_frame <int> E..V....... Allow frame skipping (from 0 to 3) (default no_skip) | |
| no_skip 0 E..V....... Frame skipping is disabled | |
| insert_dummy 1 E..V....... Encoder inserts into bitstream frame where all macroblocks are encoded as skipped | |
| insert_nothing 2 E..V....... Encoder inserts nothing into bitstream | |
| brc_only 3 E..V....... skip_frame metadata indicates the number of missed frames before the current frame | |
| -dual_gfx <int> E..V....... Prefer processing on both iGfx and dGfx simultaneously (from 0 to 2) (default off) | |
| off 0 E..V....... Disable HyperEncode mode | |
| on 1 E..V....... Enable HyperEncode mode and return error if incompatible parameters during initialization | |
| adaptive 2 E..V....... Enable HyperEncode mode or fallback to single GPU if incompatible parameters during initialization | |
| -cavlc <boolean> E..V....... Enable CAVLC (default false) | |
| -vcm <boolean> E..V....... Use the video conferencing mode ratecontrol (default false) | |
| -idr_interval <int> E..V....... Distance (in I-frames) between IDR frames (from 0 to INT_MAX) (default 0) | |
| -pic_timing_sei <boolean> E..V....... Insert picture timing SEI with pic_struct_syntax element (default true) | |
| -single_sei_nal_unit <int> E..V....... Put all the SEI messages into one NALU (from -1 to 1) (default -1) | |
| -max_dec_frame_buffering <int> E..V....... Maximum number of frames buffered in the DPB (from 0 to 65535) (default 0) | |
| -look_ahead <boolean> E..V....... Use VBR algorithm with look ahead (default false) | |
| -look_ahead_depth <int> E..V....... Depth of look ahead in number frames (from 0 to 100) (default 0) | |
| -look_ahead_downsampling <int> E..V....... Downscaling factor for the frames saved for the lookahead analysis (from 0 to 3) (default unknown) | |
| unknown 0 E..V....... | |
| auto 0 E..V....... | |
| off 1 E..V....... | |
| 2x 2 E..V....... | |
| 4x 3 E..V....... | |
| -int_ref_type <int> E..V....... Intra refresh type. B frames should be set to 0. (from -1 to 65535) (default -1) | |
| none 0 E..V....... | |
| vertical 1 E..V....... | |
| horizontal 2 E..V....... | |
| slice 3 E..V....... | |
| -int_ref_cycle_size <int> E..V....... Number of frames in the intra refresh cycle (from -1 to 65535) (default -1) | |
| -int_ref_qp_delta <int> E..V....... QP difference for the refresh MBs (from -32768 to 32767) (default -32768) | |
| -recovery_point_sei <int> E..V....... Insert recovery point SEI messages (from -1 to 1) (default -1) | |
| -int_ref_cycle_dist <int> E..V....... Distance between the beginnings of the intra-refresh cycles in frames (from -1 to 32767) (default -1) | |
| -profile <int> E..V....... (from 0 to INT_MAX) (default unknown) | |
| unknown 0 E..V....... | |
| baseline 66 E..V....... | |
| main 77 E..V....... | |
| high 100 E..V....... | |
| -a53cc <boolean> E..V....... Use A53 Closed Captions (if available) (default true) | |
| -aud <boolean> E..V....... Insert the Access Unit Delimiter NAL (default false) | |
| -repeat_pps <boolean> E..V....... repeat pps for every frame (default false) |
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thx! I've been looking for this for a long time!