FFMPEG An Intermediate Guide/AVCodecContext AVOptions

-b FFMPEG: Encode, Video Full Name: Video Bitrate Variables: integer (bits/s) Codecs: all Web sites: Description: Used to set video bitrate, in bits per second. -ab FFMPEG: Encode, Audio Full Name: Audio Bitrate Variables: integer (bits/s) Codecs: all Web sites: Description: Used to set audio bitrate, in bits per second. -bt FFMPEG: Encode, Video Full Name: Variables: Integer (in bits/s) Codecs: all Web sites: Description: set videos o bitrate tolerance your bitrate x 10 = bt def - 4M -g FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: set the group of picture size -cutoff FFMPEG: Encode, Audio Full Name: Variables: Integer Codecs: all Web sites: Description: set cutoff bandwidth -frame_size FFMPEG: Encode, Audio Full Name: Variables: Integer Codecs: all Web sites: Description: -qcomp FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: video quantizer scale compression (VBR) -qblur FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: video quantizer scale blur (VBR) -qmin FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: min video quantizer scale (VBR) -qmax FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: max video quantizer scale (VBR) -qdiff FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: max difference between the quantizer scale (VBR) -bf FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: use 'frames' B frames -b_qfactor FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: qp factor between p and b frames -rc_strategy FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: ratecontrol method -b_strategy FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: strategy to choose between I/P/B-frames -hurry_up FFMPEG: Decode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: -ps FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: rtp payload size in bytes -luma_elim_threshold FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: single coefficient elimination threshold for luminance (negative values also consider dc coefficient) -chroma_elim_threshold FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) -b_qoffset FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: qp offset between P and B frames -mpeg_quant FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: use MPEG quantizers instead of H.263 -qsquish FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) -rc_qmod_amp FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: experimental quantizer modulation -rc_qmod_freq FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: experimental quantizer modulation -rc_eq FFMPEG: Encode, Video Full Name: Variables: String Codecs: all Web sites: Description: set rate control equation -maxrate FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: set max video bitrate tolerance (in bits/s) -minrate FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: set min video bitrate tolerance (in bits/s) -bufsize FFMPEG: Encode, Video, Audio Full Name: Variables: Integer Codecs: all Web sites: Description: set ratecontrol buffer size (in bits) -rc_buf_aggressivity FFMPEG: Encode, Video Full Name: Variables: Codecs: allFloat Web sites: Description: currently useless -i_qfactor FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: qp factor between P and I frames -i_qoffset FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: qp offset between P and I frames -rc_init_cplx FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: initial complexity for 1-pass encoding recommended value - 100 -lumi_mask FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: compresses bright areas stronger than medium ones -tcplx_mask FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: temporal complexity masking -scplx_mask FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: spatial complexity masking -p_mask FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: inter masking -dark_mask FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: compresses dark areas stronger than medium ones -aspect FFMPEG: Encode, Video Full Name: Variables: Rational Codecs: all Web sites: Description: sample aspect ratio -mb_qmin FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: obsolete, use qmin -mb_qmax FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: obsolete, use qmax -dia_size FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: diamond type & size for motion estimation -last_pred FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: amount of motion predictors from the previous frame -preme FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: pre motion estimation -precmp FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: pre motion estimation compare function -pre_dia_size FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: diamond type & size for motion estimation pre-pass -subq FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: sub pel motion estimation quality -me_range FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: limit motion vectors range (1023 for DivX player) -ibias FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: intra quant bias -pbias FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: inter quant bias -context FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: context model -sc_threshold FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: scene change threshold -lmin FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: min lagrange factor (VBR) -lmax FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: max lagrange factor (VBR) -noise_reduction FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: noise reduction recommended value - 250 -rc_init_occupancy FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: number of bits which should be loaded into the rc buffer before decoding starts -inter_threshold FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: -error FFMPEG: Full Name: Variables: Integer Codecs: all Web sites: Description: Encode, Video -quantizer_noise_shaping FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: quantizer noise shaping -threads FFMPEG: Encode, Decode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: -mb_threshold FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: macroblock threshold -dc FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: intra_dc_precision -nssew FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: nsse weight -skip_top FFMPEG: Decode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: number of macroblock rows at the top which are skipped -skip_bottom FFMPEG: Decode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: number of macroblock rows at the bottom which are skipped -lowres FFMPEG: Decode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: decode at 1= 1/2, 2=1/4, 3=1/8 resolutions -skip_threshold FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: frame skip threshold -skip_factor FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: frame skip factor -skip_exp FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: frame skip exponent -border_mask FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: increases the quantizer for macroblocks close to borders -mblmin FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: min macroblock lagrange factor (VBR) -mblmax FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: max macroblock lagrange factor (VBR) -mepc FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: motion estimation bitrate penalty compensation (1.0 = 256) -bidir_refine FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: refine the two motion vectors used in bidirectional macroblocks -brd_scale FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: downscales frames for dynamic B-frame decision -crf FFMPEG: Encode, Video Full Name: Variables: Float Codecs: x264 Web sites: Description: enables constant quality mode, and selects the quality -cqp FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: constant quantization parameter rate control method -keyint_min FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: x264 Web sites: Description: minimum interval between IDR-frames -refs FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: Snow Web sites: Description: reference frames to consider for motion compensation -chromaoffset FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: chroma qp offset from luma -bframebias FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: influences how often B-frames are used -trellis FFMPEG: Encode, Video, Audio Full Name: Variables: Integer Codecs: all Web sites: Description: rate-distortion optimal quantization In lavc: trellis 0 = no trellis trellis 1 = trellis on final encode In x264: trellis 0 = no trellis trellis 1 = trellis on final encode trellis 2 = trellis on all RD calls (slow) -directpred FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal), 3 (auto) -complexityblur FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: reduce fluctuations in qp (before curve compression) -deblockalpha FFMPEG: Integer Full Name: Variables: Encode, Video Codecs: all Web sites: Description: in-loop deblocking filter alphac0 parameter -deblockbeta FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: in-loop deblocking filter beta parameter -sc_factor FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: multiplied by qscale for each frame and added to scene_change_score -mv0_threshold FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: -b_sensitivity FFMPEG: Encode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: adjusts sensitivity of b_frame_strategy 1 -compression_level FFMPEG: Encode, Video, Audio Full Name: Variables: Integer Codecs: all Web sites: Description: -use_lpc FFMPEG: Encode, Audio Full Name: Variables: Integer Codecs: all Web sites: Description: sets whether to use LPC mode (FLAC) -lpc_coeff_precision FFMPEG: Encode, Audio Full Name: Variables: Integer Codecs: all Web sites: Description: LPC coefficient precision (FLAC) -min_prediction_order FFMPEG: Encode, Audio Full Name: Variables: Integer Codecs: all Web sites: Description: -max_prediction_order FFMPEG: Encode, Audio Full Name: Variables: Integer Codecs: all Web sites: Description: -prediction_order_method FFMPEG: Encode, Audio Full Name: Variables: Integer Codecs: all Web sites: Description: search method for selecting prediction order -min_partition_order FFMPEG: Encode, Audio Full Name: Variables: Integer Codecs: all Web sites: Description: -max_partition_order FFMPEG: Encode, Audio Full Name: Variables: Integer Codecs: all Web sites: Description: -timecode_frame_start FFMPEG: Encode, Video Full Name: Variables: Integer 64bit Codecs: all Web sites: Description: GOP timecode frame start number, in non drop frame format -request_channels FFMPEG: Decode, Audio Full Name: Variables: Integer Codecs: all Web sites: Description: set desired number of audio channels -drc_scale FFMPEG: Decode, Audio Full Name: Variables: Float Codecs: all Web sites: Description: percentage of dynamic range compression to apply -channel_layout FFMPEG: Encode, Decode, Audio Full Name: Variables: Integer 64bit Codecs: all Web sites: Description: -request_channel_layout FFMPEG: Decode, Audio Full Name: Variables: Integer 64bit Codecs: all Web sites: Description: -rc_max_vbv_use FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: -rc_min_vbv_use FFMPEG: Encode, Video Full Name: Variables: Float Codecs: all Web sites: Description: -ticks_per_frame FFMPEG: Encode, Decode, Video, Audio Full Name: Variables: Integer Codecs: all Web sites: Description: -color_primaries FFMPEG: Encode, Decode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: -color_trc FFMPEG: Encode, Decode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: -colorspace FFMPEG: Encode, Decode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: -color_range FFMPEG: Encode, Decode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: -chroma_sample_location FFMPEG: Encode, Decode, Video Full Name: Variables: Integer Codecs: all Web sites: Description: