Hyper fast Audio and Video encoder usage: avconv [options] [[infile options] -i infile]... {[outfile options] outfile}... Main options: -L show license -h show help -? show help -help show help --help show help -version show version -formats show available formats -codecs show available codecs -bsfs show available bit stream filters -protocols show available protocols -filters show available filters -pix_fmts show available pixel formats -sample_fmts show available audio sample formats -loglevel loglevel set libav* logging level -v loglevel set libav* logging level -f fmt force format -i filename input file name -y overwrite output files -c codec codec name -codec codec codec name -pre preset preset name -map_metadata outfile[,metadata]:infile[,metadata] set metadata information of outfile from infile -t duration record or transcode "duration" seconds of audio/video -fs limit_size set the limit file size in bytes -ss time_off set the start time offset -itsoffset time_off set the input ts offset -itsscale scale set the input ts scale -metadata string=string add metadata -dframes number set the number of data frames to record -timelimit limit set max runtime in seconds -target type specify target file type ("vcd", "svcd", "dvd", "dv", "dv50", "pal-vcd", "ntsc-svcd", ...) -xerror exit on error -frames number set the number of frames to record -tag fourcc/tag force codec tag/fourcc -filter filter_list set stream filterchain -stats print progress report during encoding -attach filename add an attachment to the output file -dump_attachment filename extract an attachment into a file -bsf bitstream_filters A comma-separated list of bitstream filters -dcodec codec force data codec ('copy' to copy stream) Advanced options: -map [-]input_file_id[:stream_specifier][,sync_file_id[:stream_s set input stream mapping -map_chapters input_file_index set chapters mapping -benchmark add timings for benchmarking -dump dump each input packet -hex when dumping packets, also dump the payload -re read input at native frame rate -vsync video sync method -async audio sync method -adrift_threshold threshold audio drift threshold -copyts copy timestamps -copytb copy input stream time base when stream copying -shortest finish encoding within shortest input -dts_delta_threshold threshold timestamp discontinuity delta threshold -copyinkf copy initial non-keyframes -q q use fixed quality scale (VBR) -qscale q use fixed quality scale (VBR) -streamid streamIndex:value set the value of an outfile streamid -muxdelay seconds set the maximum demux-decode delay -muxpreload seconds set the initial demux-decode delay Video options: -vframes number set the number of video frames to record -r rate set frame rate (Hz value, fraction or abbreviation) -s size set frame size (WxH or abbreviation) -aspect aspect set aspect ratio (4:3, 16:9 or 1.3333, 1.7777) -vn disable video -vcodec codec force video codec ('copy' to copy stream) -same_quant use same quantizer as source (implies VBR) -pass n select the pass number (1 or 2) -passlogfile prefix select two pass log file name prefix -vf filter list video filters Advanced Video options: -pix_fmt format set pixel format -vdt n discard threshold -rc_override override rate control override for specific intervals -deinterlace deinterlace pictures -vstats dump video coding statistics to file -vstats_file file dump video coding statistics to file -intra_matrix matrix specify intra matrix coeffs -inter_matrix matrix specify inter matrix coeffs -top top=1/bottom=0/auto=-1 field first -dc precision intra_dc_precision -vtag fourcc/tag force video tag/fourcc -qphist show QP histogram -force_fps force the selected framerate, disable the best supported framerate selection -force_key_frames timestamps force key frames at specified timestamps Audio options: -aframes number set the number of audio frames to record -aq quality set audio quality (codec-specific) -ar rate set audio sampling rate (in Hz) -ac channels set number of audio channels -an disable audio -acodec codec force audio codec ('copy' to copy stream) -vol volume change audio volume (256=normal) Advanced Audio options: -atag fourcc/tag force audio tag/fourcc -sample_fmt format set sample format Subtitle options: -sn disable subtitle -scodec codec force subtitle codec ('copy' to copy stream) -stag fourcc/tag force subtitle tag/fourcc Audio/Video grab options: -isync sync read on input AVCodecContext AVOptions: -b E.VA. set bitrate (in bits/s) -ab E..A. this option is deprecated, use b -bt E.V.. set video bitrate tolerance (in bits/s) -flags EDVA. mv4 E.V.. use four motion vector by macroblock (mpeg4) obmc E.V.. use overlapped block motion compensation (h263+) qpel E.V.. use 1/4 pel motion compensation loop E.V.. use loop filter gmc E.V.. use gmc mv0 E.V.. always try a mb with mv=<0,0> part E.V.. use data partitioning gray EDV.. only decode/encode grayscale psnr E.V.. error[?] variables will be set during encoding naq E.V.. normalize adaptive quantization ildct E.V.. use interlaced dct low_delay EDV.. force low delay alt E.V.. enable alternate scantable (mpeg2/mpeg4) global_header E.VA. place global headers in extradata instead of every keyframe bitexact EDVAS use only bitexact stuff (except (i)dct) aic E.V.. h263 advanced intra coding / mpeg4 ac prediction umv E.V.. use unlimited motion vectors cbp E.V.. use rate distortion optimization for cbp qprd E.V.. use rate distortion optimization for qp selection aiv E.V.. h263 alternative inter vlc slice E.V.. ilme E.V.. interlaced motion estimation scan_offset E.V.. will reserve space for svcd scan offset user data cgop E.V.. closed gop -me_method E.V.. set motion estimation method zero E.V.. zero motion estimation (fastest) full E.V.. full motion estimation (slowest) epzs E.V.. EPZS motion estimation (default) esa E.V.. esa motion estimation (alias for full) tesa E.V.. tesa motion estimation dia E.V.. dia motion estimation (alias for epzs) log E.V.. log motion estimation phods E.V.. phods motion estimation x1 E.V.. X1 motion estimation hex E.V.. hex motion estimation umh E.V.. umh motion estimation iter E.V.. iter motion estimation -g E.V.. set the group of picture size -ar ED.A. set audio sampling rate (in Hz) -ac ED.A. set number of audio channels -cutoff E..A. set cutoff bandwidth -frame_size E..A. -qcomp E.V.. video quantizer scale compression (VBR) -qblur E.V.. video quantizer scale blur (VBR) -qmin E.V.. min video quantizer scale (VBR) -qmax E.V.. max video quantizer scale (VBR) -qdiff E.V.. max difference between the quantizer scale (VBR) -bf E.V.. use 'frames' B frames -b_qfactor E.V.. qp factor between p and b frames -rc_strategy E.V.. ratecontrol method -b_strategy E.V.. strategy to choose between I/P/B-frames -wpredp E.V.. weighted prediction analysis method -ps E.V.. rtp payload size in bytes -bug .DV.. workaround not auto detected encoder bugs autodetect .DV.. old_msmpeg4 .DV.. some old lavc generated msmpeg4v3 files (no autodetection) xvid_ilace .DV.. Xvid interlacing bug (autodetected if fourcc==XVIX) ump4 .DV.. (autodetected if fourcc==UMP4) no_padding .DV.. padding bug (autodetected) amv .DV.. ac_vlc .DV.. illegal vlc bug (autodetected per fourcc) qpel_chroma .DV.. std_qpel .DV.. old standard qpel (autodetected per fourcc/version) qpel_chroma2 .DV.. direct_blocksize .DV.. direct-qpel-blocksize bug (autodetected per fourcc/version) edge .DV.. edge padding bug (autodetected per fourcc/version) hpel_chroma .DV.. dc_clip .DV.. ms .DV.. workaround various bugs in microsofts broken decoders trunc .DV.. trancated frames -lelim E.V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient) -celim E.V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) -strict EDVA. how strictly to follow the standards very EDV.. strictly conform to a older more strict version of the spec or reference software strict EDV.. strictly conform to all the things in the spec no matter what consequences normal EDV.. unofficial EDV.. allow unofficial extensions experimental EDV.. allow non standardized experimental things -b_qoffset E.V.. qp offset between P and B frames -er .DVA. set error detection aggressivity careful .DV.. compliant .DV.. aggressive .DV.. very_aggressive .DV.. explode .DV.. abort decoding on error recognition -err_detect .DVA. set error detection flags crccheck .DV.. verify embedded CRCs bitstream .DV.. detect bitstream specification deviations buffer .DV.. detect improper bitstream length explode .DV.. abort decoding on minor error detection -mpeg_quant E.V.. use MPEG quantizers instead of H.263 -qsquish E.V.. how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) -rc_qmod_amp E.V.. experimental quantizer modulation -rc_qmod_freq E.V.. experimental quantizer modulation -rc_eq E.V.. set rate control equation -maxrate E.VA. set max bitrate tolerance (in bits/s) -minrate E.VA. set min bitrate tolerance (in bits/s) -bufsize E.VA. set ratecontrol buffer size (in bits) -rc_buf_aggressivity E.V.. currently useless -i_qfactor E.V.. qp factor between P and I frames -i_qoffset E.V.. qp offset between P and I frames -rc_init_cplx E.V.. initial complexity for 1-pass encoding -dct E.V.. DCT algorithm auto E.V.. autoselect a good one (default) fastint E.V.. fast integer int E.V.. accurate integer mmx E.V.. mlib E.V.. altivec E.V.. faan E.V.. floating point AAN DCT -lumi_mask E.V.. compresses bright areas stronger than medium ones -tcplx_mask E.V.. temporal complexity masking -scplx_mask E.V.. spatial complexity masking -p_mask E.V.. inter masking -dark_mask E.V.. compresses dark areas stronger than medium ones -idct EDV.. select IDCT implementation auto EDV.. int EDV.. simple EDV.. simplemmx EDV.. libmpeg2mmx EDV.. ps2 EDV.. mlib EDV.. arm EDV.. altivec EDV.. sh4 EDV.. simplearm EDV.. simplearmv5te EDV.. simplearmv6 EDV.. simpleneon EDV.. simplealpha EDV.. h264 EDV.. vp3 EDV.. ipp EDV.. xvidmmx EDV.. faani EDV.. floating point AAN IDCT -ec .DV.. set error concealment strategy guess_mvs .DV.. iterative motion vector (MV) search (slow) deblock .DV.. use strong deblock filter for damaged MBs -pred E.V.. prediction method left E.V.. plane E.V.. median E.V.. -aspect E.V.. sample aspect ratio -debug EDVAS print specific debug info pict .DV.. picture info rc E.V.. rate control bitstream .DV.. mb_type .DV.. macroblock (MB) type qp .DV.. per-block quantization parameter (QP) mv .DV.. motion vector dct_coeff .DV.. skip .DV.. startcode .DV.. pts .DV.. er .DV.. error recognition mmco .DV.. memory management control operations (H.264) bugs .DV.. vis_qp .DV.. visualize quantization parameter (QP), lower QP are tinted greener vis_mb_type .DV.. visualize block types buffers .DV.. picture buffer allocations thread_ops .DV.. threading operations -vismv .DV.. visualize motion vectors (MVs) pf .DV.. forward predicted MVs of P-frames bf .DV.. forward predicted MVs of B-frames bb .DV.. backward predicted MVs of B-frames -cmp E.V.. full pel me compare function sad E.V.. sum of absolute differences, fast (default) sse E.V.. sum of squared errors satd E.V.. sum of absolute Hadamard transformed differences dct E.V.. sum of absolute DCT transformed differences psnr E.V.. sum of squared quantization errors (avoid, low quality) bit E.V.. number of bits needed for the block rd E.V.. rate distortion optimal, slow zero E.V.. 0 vsad E.V.. sum of absolute vertical differences vsse E.V.. sum of squared vertical differences nsse E.V.. noise preserving sum of squared differences w53 E.V.. 5/3 wavelet, only used in snow w97 E.V.. 9/7 wavelet, only used in snow dctmax E.V.. chroma E.V.. -subcmp E.V.. sub pel me compare function sad E.V.. sum of absolute differences, fast (default) sse E.V.. sum of squared errors satd E.V.. sum of absolute Hadamard transformed differences dct E.V.. sum of absolute DCT transformed differences psnr E.V.. sum of squared quantization errors (avoid, low quality) bit E.V.. number of bits needed for the block rd E.V.. rate distortion optimal, slow zero E.V.. 0 vsad E.V.. sum of absolute vertical differences vsse E.V.. sum of squared vertical differences nsse E.V.. noise preserving sum of squared differences w53 E.V.. 5/3 wavelet, only used in snow w97 E.V.. 9/7 wavelet, only used in snow dctmax E.V.. chroma E.V.. -mbcmp E.V.. macroblock compare function sad E.V.. sum of absolute differences, fast (default) sse E.V.. sum of squared errors satd E.V.. sum of absolute Hadamard transformed differences dct E.V.. sum of absolute DCT transformed differences psnr E.V.. sum of squared quantization errors (avoid, low quality) bit E.V.. number of bits needed for the block rd E.V.. rate distortion optimal, slow zero E.V.. 0 vsad E.V.. sum of absolute vertical differences vsse E.V.. sum of squared vertical differences nsse E.V.. noise preserving sum of squared differences w53 E.V.. 5/3 wavelet, only used in snow w97 E.V.. 9/7 wavelet, only used in snow dctmax E.V.. chroma E.V.. -ildctcmp E.V.. interlaced dct compare function sad E.V.. sum of absolute differences, fast (default) sse E.V.. sum of squared errors satd E.V.. sum of absolute Hadamard transformed differences dct E.V.. sum of absolute DCT transformed differences psnr E.V.. sum of squared quantization errors (avoid, low quality) bit E.V.. number of bits needed for the block rd E.V.. rate distortion optimal, slow zero E.V.. 0 vsad E.V.. sum of absolute vertical differences vsse E.V.. sum of squared vertical differences nsse E.V.. noise preserving sum of squared differences w53 E.V.. 5/3 wavelet, only used in snow w97 E.V.. 9/7 wavelet, only used in snow dctmax E.V.. chroma E.V.. -dia_size E.V.. diamond type & size for motion estimation -last_pred E.V.. amount of motion predictors from the previous frame -preme E.V.. pre motion estimation -precmp E.V.. pre motion estimation compare function sad E.V.. sum of absolute differences, fast (default) sse E.V.. sum of squared errors satd E.V.. sum of absolute Hadamard transformed differences dct E.V.. sum of absolute DCT transformed differences psnr E.V.. sum of squared quantization errors (avoid, low quality) bit E.V.. number of bits needed for the block rd E.V.. rate distortion optimal, slow zero E.V.. 0 vsad E.V.. sum of absolute vertical differences vsse E.V.. sum of squared vertical differences nsse E.V.. noise preserving sum of squared differences w53 E.V.. 5/3 wavelet, only used in snow w97 E.V.. 9/7 wavelet, only used in snow dctmax E.V.. chroma E.V.. -pre_dia_size E.V.. diamond type & size for motion estimation pre-pass -subq E.V.. sub pel motion estimation quality -me_range E.V.. limit motion vectors range (1023 for DivX player) -ibias E.V.. intra quant bias -pbias E.V.. inter quant bias -global_quality E.VA. -coder E.V.. vlc E.V.. variable length coder / huffman coder ac E.V.. arithmetic coder raw E.V.. raw (no encoding) rle E.V.. run-length coder deflate E.V.. deflate-based coder -context E.V.. context model -mbd E.V.. macroblock decision algorithm (high quality mode) simple E.V.. use mbcmp (default) bits E.V.. use fewest bits rd E.V.. use best rate distortion -sc_threshold E.V.. scene change threshold -lmin E.V.. min lagrange factor (VBR) -lmax E.V.. max lagrange factor (VBR) -nr E.V.. noise reduction -rc_init_occupancy E.V.. number of bits which should be loaded into the rc buffer before decoding starts -inter_threshold E.V.. -flags2 EDVA. fast E.V.. allow non spec compliant speedup tricks sgop E.V.. strictly enforce gop size noout E.V.. skip bitstream encoding local_header E.V.. place global headers at every keyframe instead of in extradata bpyramid E.V.. allows B-frames to be used as references for predicting wpred E.V.. weighted biprediction for b-frames (H.264) mixed_refs E.V.. one reference per partition, as opposed to one reference per macroblock dct8x8 E.V.. high profile 8x8 transform (H.264) fastpskip E.V.. fast pskip (H.264) aud E.V.. access unit delimiters (H.264) skiprd E.V.. RD optimal MB level residual skipping ivlc E.V.. intra vlc table drop_frame_timecode E.V.. non_linear_q E.V.. use non linear quantizer reservoir E..A. use bit reservoir mbtree E.V.. use macroblock tree ratecontrol (x264 only) psy E.V.. use psycho visual optimization ssim E.V.. ssim will be calculated during encoding intra_refresh E.V.. use periodic insertion of intra blocks instead of keyframes -error E.V.. -antialias .DV.. MP3 antialias algorithm auto .DV.. fastint .DV.. int .DV.. float .DV.. -qns E.V.. quantizer noise shaping -threads EDV.. auto EDV.. detect a good number of threads -me_threshold E.V.. motion estimaton threshold -mb_threshold E.V.. macroblock threshold -dc E.V.. intra_dc_precision -nssew E.V.. nsse weight -skip_top .DV.. number of macroblock rows at the top which are skipped -skip_bottom .DV.. number of macroblock rows at the bottom which are skipped -profile E.VA. unknown E.VA. aac_main E..A. aac_low E..A. aac_ssr E..A. aac_ltp E..A. dts E..A. dts_es E..A. dts_96_24 E..A. dts_hd_hra E..A. dts_hd_ma E..A. -level E.VA. unknown E.VA. -lowres .DVA. decode at 1= 1/2, 2=1/4, 3=1/8 resolutions -skip_threshold E.V.. frame skip threshold -skip_factor E.V.. frame skip factor -skip_exp E.V.. frame skip exponent -skipcmp E.V.. frame skip compare function sad E.V.. sum of absolute differences, fast (default) sse E.V.. sum of squared errors satd E.V.. sum of absolute Hadamard transformed differences dct E.V.. sum of absolute DCT transformed differences psnr E.V.. sum of squared quantization errors (avoid, low quality) bit E.V.. number of bits needed for the block rd E.V.. rate distortion optimal, slow zero E.V.. 0 vsad E.V.. sum of absolute vertical differences vsse E.V.. sum of squared vertical differences nsse E.V.. noise preserving sum of squared differences w53 E.V.. 5/3 wavelet, only used in snow w97 E.V.. 9/7 wavelet, only used in snow dctmax E.V.. chroma E.V.. -border_mask E.V.. increases the quantizer for macroblocks close to borders -mblmin E.V.. min macroblock lagrange factor (VBR) -mblmax E.V.. max macroblock lagrange factor (VBR) -mepc E.V.. motion estimation bitrate penalty compensation (1.0 = 256) -skip_loop_filter .DV.. none .DV.. default .DV.. noref .DV.. bidir .DV.. nokey .DV.. all .DV.. -skip_idct .DV.. none .DV.. default .DV.. noref .DV.. bidir .DV.. nokey .DV.. all .DV.. -skip_frame .DV.. none .DV.. default .DV.. noref .DV.. bidir .DV.. nokey .DV.. all .DV.. -bidir_refine E.V.. refine the two motion vectors used in bidirectional macroblocks -brd_scale E.V.. downscales frames for dynamic B-frame decision -crf E.V.. enables constant quality mode, and selects the quality (x264) -cqp E.V.. constant quantization parameter rate control method -keyint_min E.V.. minimum interval between IDR-frames (x264) -refs E.V.. reference frames to consider for motion compensation (Snow) -chromaoffset E.V.. chroma qp offset from luma -bframebias E.V.. influences how often B-frames are used -trellis E.VA. rate-distortion optimal quantization -directpred E.V.. direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal), 3 (auto) -complexityblur E.V.. reduce fluctuations in qp (before curve compression) -deblockalpha E.V.. in-loop deblocking filter alphac0 parameter -deblockbeta E.V.. in-loop deblocking filter beta parameter -partitions E.V.. macroblock subpartition sizes to consider parti4x4 E.V.. parti8x8 E.V.. partp4x4 E.V.. partp8x8 E.V.. partb8x8 E.V.. -sc_factor E.V.. multiplied by qscale for each frame and added to scene_change_score -mv0_threshold E.V.. -b_sensitivity E.V.. adjusts sensitivity of b_frame_strategy 1 -compression_level E.VA. -min_prediction_order E..A. -max_prediction_order E..A. -lpc_coeff_precision E..A. deprecated, use flac-specific options -prediction_order_method E..A. deprecated, use flac-specific options -min_partition_order E..A. deprecated, use flac-specific options -max_partition_order E..A. deprecated, use flac-specific options -timecode_frame_start E.V.. GOP timecode frame start number, in non drop frame format -request_channels .D.A. set desired number of audio channels -drc_scale .D.A. percentage of dynamic range compression to apply -channel_layout ED.A. -request_channel_layout .D.A. -rc_max_vbv_use E.V.. -rc_min_vbv_use E.V.. -ticks_per_frame EDVA. -color_primaries EDV.. -color_trc EDV.. -colorspace EDV.. -color_range EDV.. -chroma_sample_location EDV.. -psy_rd E.V.. specify psycho visual strength -psy_trellis E.V.. specify psycho visual trellis -aq_mode E.V.. specify aq method -aq_strength E.V.. specify aq strength -rc_lookahead E.V.. specify number of frames to look ahead for frametype -crf_max E.V.. in crf mode, prevents vbv from lowering quality beyond this point -lpc_type E..A. deprecated, use flac-specific options -lpc_passes E..A. deprecated, use flac-specific options -slices E.V.. number of slices, used in parallelized encoding -thread_type EDV.. select multithreading type slice EDV.. frame EDV.. -audio_service_type E..A. audio service type ma E..A. Main Audio Service ef E..A. Effects vi E..A. Visually Impaired hi E..A. Hearing Impaired di E..A. Dialogue co E..A. Commentary em E..A. Emergency vo E..A. Voice Over ka E..A. Karaoke -request_sample_fmt .D.A. u8 .D.A. 8-bit unsigned integer s16 .D.A. 16-bit signed integer s32 .D.A. 32-bit signed integer flt .D.A. 32-bit float dbl .D.A. 64-bit double dnxhd AVOptions: -nitris_compat E.V.. encode with Avid Nitris compatibility H.263 encoder AVOptions: -obmc E.V.. use overlapped block motion compensation. -structured_slices E.V.. Write slice start position at every GOB header instead of just GOB number. H.263p encoder AVOptions: -umv E.V.. Use unlimited motion vectors. -aiv E.V.. Use alternative inter VLC. -obmc E.V.. use overlapped block motion compensation. -structured_slices E.V.. Write slice start position at every GOB header instead of just GOB number. MJPEG decoder AVOptions: -extern_huff .DV.. Use external huffman table. mpeg1video encoder AVOptions: -intra_vlc E.V.. Use MPEG-2 intra VLC table. -drop_frame_timecode E.V.. Timecode is in drop frame format. -scan_offset E.V.. Reserve space for SVCD scan offset user data. mpeg2video encoder AVOptions: -intra_vlc E.V.. Use MPEG-2 intra VLC table. -drop_frame_timecode E.V.. Timecode is in drop frame format. -scan_offset E.V.. Reserve space for SVCD scan offset user data. -non_linear_quant E.V.. Use nonlinear quantizer. -alternate_scan E.V.. Enable alternate scantable. MPEG4 encoder AVOptions: -data_partitioning E.V.. Use data partitioning. -alternate_scan E.V.. Enable alternate scantable. snow encoder AVOptions: -memc_only E.V.. Only do ME/MC (I frames -> ref, P frame -> ME+MC). TIFF encoder AVOptions: -compression_algo E.V.. packbits E.V.. raw E.V.. lzw E.V.. deflate E.V.. AAC encoder AVOptions: -stereo_mode E..A. Stereo coding method auto E..A. Selected by the Encoder ms_off E..A. Disable Mid/Side coding ms_force E..A. Force Mid/Side for the whole frame if possible AC-3 Encoder AVOptions: -per_frame_metadata E..A. Allow Changing Metadata Per-Frame -center_mixlev E..A. Center Mix Level -surround_mixlev E..A. Surround Mix Level -mixing_level E..A. Mixing Level -room_type E..A. Room Type notindicated E..A. Not Indicated (default) large E..A. Large Room small E..A. Small Room -copyright E..A. Copyright Bit -dialnorm E..A. Dialogue Level (dB) -dsur_mode E..A. Dolby Surround Mode notindicated E..A. Not Indicated (default) on E..A. Dolby Surround Encoded off E..A. Not Dolby Surround Encoded -original E..A. Original Bit Stream -dmix_mode E..A. Preferred Stereo Downmix Mode notindicated E..A. Not Indicated (default) ltrt E..A. Lt/Rt Downmix Preferred loro E..A. Lo/Ro Downmix Preferred -ltrt_cmixlev E..A. Lt/Rt Center Mix Level -ltrt_surmixlev E..A. Lt/Rt Surround Mix Level -loro_cmixlev E..A. Lo/Ro Center Mix Level -loro_surmixlev E..A. Lo/Ro Surround Mix Level -dsurex_mode E..A. Dolby Surround EX Mode notindicated E..A. Not Indicated (default) on E..A. Dolby Surround EX Encoded off E..A. Not Dolby Surround EX Encoded -dheadphone_mode E..A. Dolby Headphone Mode notindicated E..A. Not Indicated (default) on E..A. Dolby Headphone Encoded off E..A. Not Dolby Headphone Encoded -ad_conv_type E..A. A/D Converter Type standard E..A. Standard (default) hdcd E..A. HDCD -stereo_rematrixing E..A. Stereo Rematrixing -channel_coupling E..A. Channel Coupling auto E..A. Selected by the Encoder -cpl_start_band E..A. Coupling Start Band auto E..A. Selected by the Encoder AC3 decoder AVOptions: -drc_scale .D.A. percentage of dynamic range compression to apply Fixed-Point AC-3 Encoder AVOptions: -per_frame_metadata E..A. Allow Changing Metadata Per-Frame -center_mixlev E..A. Center Mix Level -surround_mixlev E..A. Surround Mix Level -mixing_level E..A. Mixing Level -room_type E..A. Room Type notindicated E..A. Not Indicated (default) large E..A. Large Room small E..A. Small Room -copyright E..A. Copyright Bit -dialnorm E..A. Dialogue Level (dB) -dsur_mode E..A. Dolby Surround Mode notindicated E..A. Not Indicated (default) on E..A. Dolby Surround Encoded off E..A. Not Dolby Surround Encoded -original E..A. Original Bit Stream -dmix_mode E..A. Preferred Stereo Downmix Mode notindicated E..A. Not Indicated (default) ltrt E..A. Lt/Rt Downmix Preferred loro E..A. Lo/Ro Downmix Preferred -ltrt_cmixlev E..A. Lt/Rt Center Mix Level -ltrt_surmixlev E..A. Lt/Rt Surround Mix Level -loro_cmixlev E..A. Lo/Ro Center Mix Level -loro_surmixlev E..A. Lo/Ro Surround Mix Level -dsurex_mode E..A. Dolby Surround EX Mode notindicated E..A. Not Indicated (default) on E..A. Dolby Surround EX Encoded off E..A. Not Dolby Surround EX Encoded -dheadphone_mode E..A. Dolby Headphone Mode notindicated E..A. Not Indicated (default) on E..A. Dolby Headphone Encoded off E..A. Not Dolby Headphone Encoded -ad_conv_type E..A. A/D Converter Type standard E..A. Standard (default) hdcd E..A. HDCD -stereo_rematrixing E..A. Stereo Rematrixing -channel_coupling E..A. Channel Coupling auto E..A. Selected by the Encoder -cpl_start_band E..A. Coupling Start Band auto E..A. Selected by the Encoder E-AC-3 Encoder AVOptions: -per_frame_metadata E..A. Allow Changing Metadata Per-Frame -mixing_level E..A. Mixing Level -room_type E..A. Room Type notindicated E..A. Not Indicated (default) large E..A. Large Room small E..A. Small Room -copyright E..A. Copyright Bit -dialnorm E..A. Dialogue Level (dB) -dsur_mode E..A. Dolby Surround Mode notindicated E..A. Not Indicated (default) on E..A. Dolby Surround Encoded off E..A. Not Dolby Surround Encoded -original E..A. Original Bit Stream -dmix_mode E..A. Preferred Stereo Downmix Mode notindicated E..A. Not Indicated (default) ltrt E..A. Lt/Rt Downmix Preferred loro E..A. Lo/Ro Downmix Preferred -ltrt_cmixlev E..A. Lt/Rt Center Mix Level -ltrt_surmixlev E..A. Lt/Rt Surround Mix Level -loro_cmixlev E..A. Lo/Ro Center Mix Level -loro_surmixlev E..A. Lo/Ro Surround Mix Level -dsurex_mode E..A. Dolby Surround EX Mode notindicated E..A. Not Indicated (default) on E..A. Dolby Surround EX Encoded off E..A. Not Dolby Surround EX Encoded -dheadphone_mode E..A. Dolby Headphone Mode notindicated E..A. Not Indicated (default) on E..A. Dolby Headphone Encoded off E..A. Not Dolby Headphone Encoded -ad_conv_type E..A. A/D Converter Type standard E..A. Standard (default) hdcd E..A. HDCD -stereo_rematrixing E..A. Stereo Rematrixing -channel_coupling E..A. Channel Coupling auto E..A. Selected by the Encoder -cpl_start_band E..A. Coupling Start Band auto E..A. Selected by the Encoder E-AC3 decoder AVOptions: -drc_scale .D.A. percentage of dynamic range compression to apply FLAC encoder AVOptions: -lpc_coeff_precision E..A. LPC coefficient precision -lpc_type E..A. LPC algorithm none E..A. fixed E..A. levinson E..A. cholesky E..A. -lpc_passes E..A. Number of passes to use for Cholesky factorization during LPC analysis -min_partition_order E..A. -max_partition_order E..A. -prediction_order_method E..A. Search method for selecting prediction order estimation E..A. 2level E..A. 4level E..A. 8level E..A. search E..A. log E..A. g722 decoder AVOptions: -bits_per_codeword .D.A. Bits per G722 codeword g726 AVOptions: -code_size E..A. Bits per code libspeex AVOptions: -abr E..A. Use average bit rate -cbr_quality E..A. Set quality value (0 to 10) for CBR -frames_per_packet E..A. Number of frames to encode in each packet libvorbis AVOptions: -iblock E..A. Sets the impulse block bias libvpx encoder AVOptions: -cpu-used E.V.. Quality/Speed ratio modifier -auto-alt-ref E.V.. Enable use of alternate reference frames (2-pass only) -lag-in-frames E.V.. Number of frames to look ahead for alternate reference frame selection -arnr-maxframes E.V.. altref noise reduction max frame count -arnr-strength E.V.. altref noise reduction filter strength -arnr-type E.V.. altref noise reduction filter type backward E.V.. forward E.V.. centered E.V.. -deadline E.V.. Time to spend encoding, in microseconds. best E.V.. good E.V.. realtime E.V.. -error-resilient E.V.. Error resilience configuration default E.V.. Improve resiliency against losses of whole frames partitions E.V.. The frame partitions are independently decodable by the bool decoder, meaning that partitions can be decoded even though earlier partitions have been lost. Note that intra predicition is still done over the partition boundary. AVFormatContext AVOptions: -probesize .D... set probing size -muxrate E.... set mux rate -packetsize E.... set packet size -fflags ED... ignidx .D... ignore index genpts .D... generate pts nofillin .D... do not fill in missing values that can be exactly calculated noparse .D... disable AVParsers, this needs nofillin too igndts .D... ignore dts rtphint E.... add rtp hinting (deprecated, use the -movflags rtphint option instead) discardcorrupt .D... discard corrupted frames -analyzeduration .D... how many microseconds are analyzed to estimate duration -cryptokey .D... decryption key -indexmem .D... max memory used for timestamp index (per stream) -rtbufsize .D... max memory used for buffering real-time frames -fdebug ED... print specific debug info ts ED... -max_delay ED... maximum muxing or demuxing delay in microseconds -fpsprobesize .D... number of frames used to probe fps -f_err_detect .D... set error detection flags (deprecated; use err_detect, save via avconv) crccheck .D... verify embedded CRCs bitstream .D... detect bitstream specification deviations buffer .D... detect improper bitstream length explode .D... abort decoding on minor error detection -err_detect .D... set error detection flags crccheck .D... verify embedded CRCs bitstream .D... detect bitstream specification deviations buffer .D... detect improper bitstream length explode .D... abort decoding on minor error detection ALSA demuxer AVOptions: -sample_rate .D... -channels .D... DV1394 indev AVOptions: -standard .D... PAL .D... NTSC .D... -channel .D... fbdev indev AVOptions: -framerate .D... JACK indev AVOptions: -channels .D... Number of audio channels. OSS demuxer AVOptions: -sample_rate .D... -channels .D... V4L2 indev AVOptions: -standard .D... TV standard, used only by analog frame grabber -channel .D... TV channel, used only by frame grabber -video_size .D... A string describing frame size, such as 640x480 or hd720. -pixel_format .D... Preferred pixel format -input_format .D... Preferred pixel format (for raw video) or codec name -framerate .D... -list_formats .D... List available formats and exit all .D... Show all available formats raw .D... Show only non-compressed formats compressed .D... Show only compressed formats X11grab indev AVOptions: -video_size .D... A string describing frame size, such as 640x480 or hd720. -framerate .D... -draw_mouse .D... Draw the mouse pointer. -follow_mouse .D... Move the grabbing region when the mouse pointer reaches within specified amount of pixels to the edge of region. centered .D... Keep the mouse pointer at the center of grabbing region when following. -show_region .D... Show the grabbing region. libdc1394 indev AVOptions: -video_size .D... A string describing frame size, such as 640x480 or hd720. -pixel_format .D... -framerate .D... cavsvideo demuxer AVOptions: -framerate .D... dirac demuxer AVOptions: -framerate .D... dnxhd demuxer AVOptions: -framerate .D... gsm demuxer AVOptions: -sample_rate .D... h261 demuxer AVOptions: -framerate .D... h263 demuxer AVOptions: -framerate .D... h264 demuxer AVOptions: -framerate .D... image2 demuxer AVOptions: -pixel_format .D... -video_size .D... -framerate .D... -loop .D... image2pipe demuxer AVOptions: -pixel_format .D... -video_size .D... -framerate .D... -loop .D... ingenient demuxer AVOptions: -framerate .D... m4v demuxer AVOptions: -framerate .D... mjpeg demuxer AVOptions: -framerate .D... mpegtsraw demuxer AVOptions: -compute_pcr .D... Compute exact PCR for each transport stream packet. mpegvideo demuxer AVOptions: -framerate .D... alaw demuxer AVOptions: -sample_rate .D... -channels .D... mulaw demuxer AVOptions: -sample_rate .D... -channels .D... f64be demuxer AVOptions: -sample_rate .D... -channels .D... f64le demuxer AVOptions: -sample_rate .D... -channels .D... f32be demuxer AVOptions: -sample_rate .D... -channels .D... f32le demuxer AVOptions: -sample_rate .D... -channels .D... s32be demuxer AVOptions: -sample_rate .D... -channels .D... s32le demuxer AVOptions: -sample_rate .D... -channels .D... s24be demuxer AVOptions: -sample_rate .D... -channels .D... s24le demuxer AVOptions: -sample_rate .D... -channels .D... s16be demuxer AVOptions: -sample_rate .D... -channels .D... s16le demuxer AVOptions: -sample_rate .D... -channels .D... s8 demuxer AVOptions: -sample_rate .D... -channels .D... u32be demuxer AVOptions: -sample_rate .D... -channels .D... u32le demuxer AVOptions: -sample_rate .D... -channels .D... u24be demuxer AVOptions: -sample_rate .D... -channels .D... u24le demuxer AVOptions: -sample_rate .D... -channels .D... u16be demuxer AVOptions: -sample_rate .D... -channels .D... u16le demuxer AVOptions: -sample_rate .D... -channels .D... u8 demuxer AVOptions: -sample_rate .D... -channels .D... rawvideo demuxer AVOptions: -video_size .D... A string describing frame size, such as 640x480 or hd720. -pixel_format .D... -framerate .D... RTP demuxer AVOptions: -rtp_flags .D... RTP flags filter_src .D... Only receive packets from the negotiated peer IP RTSP demuxer AVOptions: -initial_pause .D... Don't start playing the stream immediately -rtpflags E.... RTP muxer flags latm E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC -rtsp_transport ED... RTSP transport protocols udp ED... UDP tcp ED... TCP udp_multicast .D... UDP multicast http .D... HTTP tunneling -rtsp_flags .D... RTSP flags filter_src .D... Only receive packets from the negotiated peer IP -allowed_media_types .D... Media types to accept from the server video .D... Video audio .D... Audio data .D... Data SDP demuxer AVOptions: -sdp_flags .D... SDP flags filter_src .D... Only receive packets from the negotiated peer IP -allowed_media_types .D... Media types to accept from the server video .D... Video audio .D... Audio data .D... Data TTY demuxer AVOptions: -chars_per_frame .D... -video_size .D... A string describing frame size, such as 640x480 or hd720. -framerate .D... vc1 demuxer AVOptions: -framerate .D... GIF muxer AVOptions: -loop E.... Number of times to loop the output. ipod muxer AVOptions: -movflags E.... MOV muxer flags rtphint E.... Add RTP hint tracks -rtpflags E.... RTP muxer flags latm E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC -skip_iods E.... Skip writing iods atom. -iods_audio_profile E.... iods audio profile atom. -iods_video_profile E.... iods video profile atom. LATM/LOAS muxer AVOptions: -smc-interval E.... StreamMuxConfig interval. mov muxer AVOptions: -movflags E.... MOV muxer flags rtphint E.... Add RTP hint tracks -rtpflags E.... RTP muxer flags latm E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC -skip_iods E.... Skip writing iods atom. -iods_audio_profile E.... iods audio profile atom. -iods_video_profile E.... iods video profile atom. MP3 muxer AVOptions: -id3v2_version E.... Select ID3v2 version to write. Currently 3 and 4 are supported. -write_id3v1 E.... Enable ID3v1 writing. ID3v1 tags are written in UTF-8 which may not be supported by most software. mp4 muxer AVOptions: -movflags E.... MOV muxer flags rtphint E.... Add RTP hint tracks -rtpflags E.... RTP muxer flags latm E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC -skip_iods E.... Skip writing iods atom. -iods_audio_profile E.... iods audio profile atom. -iods_video_profile E.... iods video profile atom. mpeg muxer AVOptions: -muxrate E.... -preload E.... Initial demux-decode delay in microseconds. vcd muxer AVOptions: -muxrate E.... -preload E.... Initial demux-decode delay in microseconds. dvd muxer AVOptions: -muxrate E.... -preload E.... Initial demux-decode delay in microseconds. svcd muxer AVOptions: -muxrate E.... -preload E.... Initial demux-decode delay in microseconds. vob muxer AVOptions: -muxrate E.... -preload E.... Initial demux-decode delay in microseconds. MPEGTS muxer AVOptions: -mpegts_transport_stream_id E.... Set transport_stream_id field. -mpegts_original_network_id E.... Set original_network_id field. -mpegts_service_id E.... Set service_id field. -mpegts_pmt_start_pid E.... Set the first pid of the PMT. -mpegts_start_pid E.... Set the first pid. -muxrate E.... -pes_payload_size E.... Minimum PES packet payload in bytes psp muxer AVOptions: -movflags E.... MOV muxer flags rtphint E.... Add RTP hint tracks -rtpflags E.... RTP muxer flags latm E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC -skip_iods E.... Skip writing iods atom. -iods_audio_profile E.... iods audio profile atom. -iods_video_profile E.... iods video profile atom. RTP muxer AVOptions: -rtpflags E.... RTP muxer flags latm E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC -payload_type E.... Specify RTP payload type RTSP muxer AVOptions: -initial_pause .D... Don't start playing the stream immediately -rtpflags E.... RTP muxer flags latm E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC -rtsp_transport ED... RTSP transport protocols udp ED... UDP tcp ED... TCP udp_multicast .D... UDP multicast http .D... HTTP tunneling -rtsp_flags .D... RTSP flags filter_src .D... Only receive packets from the negotiated peer IP -allowed_media_types .D... Media types to accept from the server video .D... Video audio .D... Audio data .D... Data segment muxer AVOptions: -segment_format E.... container format used for the segments -segment_time E.... segment length in seconds -segment_list E.... output the segment list -segment_list_size E.... maximum number of playlist entries spdif AVOptions: -spdif_flags E.... IEC 61937 encapsulation flags be E.... output in big-endian format (for use as s16be) -dtshd_rate E.... mux complete DTS frames in HD mode at the specified IEC958 rate (in Hz, default 0=disabled) -dtshd_fallback_time E.... min secs to strip HD for after an overflow (-1: till the end, default 60) tg2 muxer AVOptions: -movflags E.... MOV muxer flags rtphint E.... Add RTP hint tracks -rtpflags E.... RTP muxer flags latm E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC -skip_iods E.... Skip writing iods atom. -iods_audio_profile E.... iods audio profile atom. -iods_video_profile E.... iods video profile atom. tgp muxer AVOptions: -movflags E.... MOV muxer flags rtphint E.... Add RTP hint tracks -rtpflags E.... RTP muxer flags latm E.... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC -skip_iods E.... Skip writing iods atom. -iods_audio_profile E.... iods audio profile atom. -iods_video_profile E.... iods video profile atom. WAV muxer AVOptions: -write_bext E.... Write BEXT chunk. SWScaler AVOptions: -sws_flags E.V.. scaler/cpu flags fast_bilinear E.V.. fast bilinear bilinear E.V.. bilinear bicubic E.V.. bicubic experimental E.V.. experimental neighbor E.V.. nearest neighbor area E.V.. averaging area bicublin E.V.. luma bicubic, chroma bilinear gauss E.V.. gaussian sinc E.V.. sinc lanczos E.V.. lanczos spline E.V.. natural bicubic spline print_info E.V.. print info accurate_rnd E.V.. accurate rounding full_chroma_int E.V.. full chroma interpolation full_chroma_inp E.V.. full chroma input bitexact E.V.. -srcw E.V.. source width -srch E.V.. source height -dstw E.V.. destination width -dsth E.V.. destination height -src_format E.V.. source format -dst_format E.V.. destination format -src_range E.V.. source range -dst_range E.V.. destination range -param0 E.V.. scaler param 0 -param1 E.V.. scaler param 1