automatic (same value as ‘order’), mchroma ..FV…. -sample_fmts show available audio sample formats. Right ? I doubt most people, including myself, could tell a difference from the couch between RF 18 SLOW and RF 20 FAST. Most useful in setting up a CBR encode. Set image resolution (in dots per meter) (from 0 to 65536) (default 0), -mbs_per_slice E..V…. source vertical chroma position in luma grid/256 (from -1 to 512) (default -1), -src_h_chr_pos E..V…. Download FFMPEG Audio Encoder - An open-source application that encodes the audio of any media file to the codec settings you want and saves the output with the help of the FFMPEG and MediaInfo variables will be set during encoding, naq E..V…. Glad to be of any help! altref noise reduction filter type (from 1 to 3) (default 3), -rc_lookahead E..V…. Try Handbrake -> (from 0 to 1) (default 0), -apply_defdispwin .D.V…. amf is windows only, nvenc (win/linux), and vaapi linux only, can you add these ietails to your response to make it more exhaustive? Was that with x265 directly I assume? You can lower that crf value to 23 or lower if 24 is too aggressive. set video size (default “600×240”), mode ..FV…. set display mode (from 0 to 1) (default 1), levels_mode ..FV…. For a 4K UHD movie encoded at 9MB/s, at slow, libx265 only takes about 3 hrs, compared to Handbrake, which was taking a little over 2 days. How many times should the boxblur be applied to chroma (from -1 to INT_MAX) (default -1), alpha_radius ..FV…. I do not know what's the difference between. Alternatively, you can use the following one-liner command to join all files in a directory. (from 0 to 1) (default 0), -gop_timecode E..V…. If you haven't installed FFmpeg in your Linux system yet, refer the following guide. Never write RF64 header regardless of file size. Another useful feature of FFmpeg is we can easily extract images from a video file. We use essential cookies to perform essential website functions, e.g. I find myself using a range of around 16~22CRF depending on source. While I won’t promise it will provide everything you are looking for, it will do the work for you of extracting the HDR10 details of a video and passing them into a FFmpeg command. set number of decimals to show (from 0 to 17) (default 0), n ..FV…. set left junk size (from 0 to INT_MAX) (default 1), jr ..FV…. (from 0 to FLT_MAX) (default 0), expr ..FV…. (from -1 to 255) (default -1), -frag_duration E……. set video size (default “400×400”), s ..FV…. sub-pel motion estimation quality (from INT_MIN to INT_MAX) (default 8), -me_range E..V…. (If you’re not familiar with FFmpeg, don’t fret. When launching FFMPEG Audio Encoder for the first time, you are prompted to download the executable files required for it to work properly. -maxrate E..VA… Set maximum bitrate tolerance (in bits/s). For FastFlix I have in the backlog to add a ETA timer. Here, -t 00:00:30 indicates a part that is created from the start of the video to the 30th second of video. -pixel_format .D…… set video pixel format (default none), -sample_rate .D…… set audio sample rate (from 0 to INT_MAX) (default 0), -sample_size .D…… set audio sample size (from 0 to 16) (default 0), -channels .D…… set number of audio channels, such as 1 or 2 (from 0 to INT_MAX) (default 0), -list_devices .D…… list available devices (from 0 to 1) (default 0), -list_options .D…… list available options for specified device (from 0 to 1) (default 0), -video_device_number .D…… set video device number for devices with same name (starts at 0) (from 0 to INT_MAX) (default 0), -audio_device_number .D…… set audio device number for devices with same name (starts at 0) (from 0 to INT_MAX) (default 0), -audio_buffer_size .D…… set audio device buffer latency size in milliseconds (default is the device’s default) (from 0 to INT_MAX) (default 0), -draw_mouse .D…… draw the mouse pointer (from 0 to 1) (default 1), -show_region .D…… draw border around capture area (from 0 to 1) (default 0), -framerate .D…… set video frame rate (default “ntsc”), -offset_x .D…… capture area x offset (from INT_MIN to INT_MAX) (default 0), -offset_y .D…… capture area y offset (from INT_MIN to INT_MAX) (default 0), -graph_file .D…… set libavfilter graph filename. 2-way match + 3rd match (same order) on combed (p/c + u), pc_n_ub ..FV…. set initial timestamp offset (default 0), -lookahead_count E……. set minimum detected black duration in seconds (from 0 to DBL_MAX) (default 2), black_min_duration ..FV…. ffmpeg -i original_video.avi -s pal -r pal -aspect 4:3 -ar 48000 -ac 2 final_video.dv. (from 0 to 1.67772e+009) (default 0), -preload E……. We can also add subtitles to a video file using FFmpeg. set logo y position (from -1 to INT_MAX) (default -1), w ..FV…. set bottom junk size (from 1 to INT_MAX) (default 4), sb ..FV…. QP offset between P and B-frames (from -FLT_MAX to FLT_MAX) (default 1.25), -err_detect .D.VA… set error detection flags (default 0), bitstream .D.VA… detect bitstream specification deviations, buffer .D.VA… detect improper bitstream length, explode .D.VA… abort decoding on minor error detection, careful .D.VA… consider things that violate the spec, are fast to check and have not been seen in the wild as errors, compliant .D.VA… consider all spec non compliancies as errors, aggressive .D.VA… consider things that a sane encoder should not do as an error, -mpeg_quant E..V…. Simulate errors in the bitstream to test error concealment. how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0), -rc_qmod_amp E..V…. This next chart is just showing off the basic curve effect you will see, however it cannot be compared to what you may expect to see with your file. Otherwise when you try to convert with it, you’ll see a message like “x265 [warning]: –dhdr10-info disabled. However you can extract audio from a video with audio file. Does a bronze dragon's wing attack work underwater? set component #2 strength (from 0 to 100) (default 0), c2_flags ..FV…. don’t offset dts/pts (from -1 to 1) (default -1), -tables_version E……. This will use the Dolby Vision (profile 8.1) Glass Blowing demo. You want to compress it by changing the bitrate to any lower value like below. It also does not support HDR10 metadata from what I understand. To learn more about it, refer the man page. set the assumed picture field parity (from -1 to 1) (default 1), qp ..FV…. What is the full command you are running (can remove file names)? I tested with RF20 Fast, RF18 Fast, and RF 18 Medium. experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0). For building FFmpeg for Windows, I personally have done it via a Linux system (not WSL as that has issues), i.e. set y for the rectangular search area (from -1 to INT_MAX) (default -1), w ..FV…. Default is 5MB. Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC, rfc2190 E……. That is due to the nasty big “click pad”, that one accidentally touches during typing moving the cursor anywhere or pasting or dragging text if the touch is interpreted as middle click or drag gesture. set bottom right x coordinate (default “W”), y3 ..FV…. use rate distortion optimization for CBP, -luma_elim_threshold E..V…. If you have video files with different orientation (portrait or landscape), you can rotate them as described in the following guide. specify the interlacing mode (from 0 to 3) (default 0), send_frame ..FV…. FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. Thank you for your help! interpolate values using the 8 points defining a cube, tetrahedral ..FV…. partitions E..V…. The following command reads file input.yuv and encodes it to four different H.264 videos at various output bit rates. color based on point closest to the origin of the iterations, test ..FV…. set number of frames*2 + 1 used for lowpass filtering (from 0 to 1000) (default 15), optalgo ..FV…. When computing the expression, besides the standard functions defined in the section ‘Expression Evaluation’, the following functions are available: bits2qp(bits), qp2bits(qp). invert transforms (from 0 to 1) (default 0), relative ..FV…. set maximal angle in rad to rotate image (from -1 to 3.14) (default -1), crop ..FV…. set cropping mode (from 0 to 1) (default 0), invert ..FV…. reload text file for each frame (from 0 to 1) (default 0), fix_bounds ..FV…. set the matching mode or strategy to use (from 0 to 5) (default 1), pc_n ..FV…. What happened? Variance AQ (from 0 to 1) (default 0), -ssim E..V…. Weighted prediction for B-frames. frame skip compare function (from INT_MIN to INT_MAX) (default 13), -border_mask E..V…. set output height expression (default “ih”), oh ..FV…. It is always an good idea to reduce the media files size to lower size to save the harddrive's space. $ ffmpeg -i input.mp4 -vf "setpts=4.0*PTS" output.mp4 21. Lower the decoding resolution by a power of two (from 0 to 32) (default 0), -extern_huff .D.V…. set color of the box (default “black”), c ..FV…. per-block quantization parameter (QP), mmco .D.V…. For some of us the cli commands involved here are a bit much to tackle. Constant quantization parameter rate control method (from -1 to INT_MAX) (default -1), -aq-mode E..V…. spatial complexity masking (from -FLT_MAX to FLT_MAX) (default 0), -p_mask E..V…. set the green gain for the blue channel (from -2 to 2) (default 0), bb ..FV…. Allocate streams according to the onMetaData array (from 0 to 1) (default 0), -bit_rate .D…… (from 0 to INT_MAX) (default 0), -min_delay .D…… minimum valid delay between frames (in hundredths of second) (from 0 to 6000) (default 2), -default_delay .D…… default delay between frames (in hundredths of second) (from 0 to 6000) (default 10), -ignore_loop .D…… ignore loop setting (netscape extension) (from 0 to 1) (default 1), -sample_rate .D…… (from 1 to 6.50753e+007) (default 8000), -framerate .D…… set the video framerate (default “25”), -loop .D…… force loop over input file sequence (from 0 to 1) (default 0), -pattern_type .D…… set pattern type (from 0 to INT_MAX) (default 0), glob_sequence .D…… select glob/sequence pattern type, sequence .D…… select sequence pattern type, -pixel_format .D…… set video pixel format, -start_number .D…… set first number in the sequence (from 0 to INT_MAX) (default 0), -start_number_range .D…… set range for looking at the first sequence number (from 1 to INT_MAX) (default 5), -frame_size .D…… force frame size in bytes (from 0 to INT_MAX) (default 0), -ts_from_file .D…… set frame timestamp from file’s one (from 0 to 2) (default 0), -subfps .D…S.. set the movie frame rate fallback (from 0 to INT_MAX) (default 0/1), -use_absolute_path .D.V….