Ffmpeg scale vf scale. 1) the x265 encoder can't be successfully initialized.
Ffmpeg scale vf scale.
Jan 8, 2017 · vf_scale_cuda.
Ffmpeg scale vf scale c:656. I was cropping and then increasing the size of an old video game, and I just did this:-vf crop=256:192:2:16,scale=-2:1080:flags=neighbor I knew it worked as soon as I saw it display the output file size as 1440x1080 (4:3 ratio at 1080p). vf_scale_vaapi. c:258. name = "scale_npp", Generated on Fri Jan 12 2018 01:48:22 for FFmpeg by Apr 18, 2024 · static const AVFilterPad avfilter_vf_scale_inputs[] Definition: vf_scale. ‘bilinear’ Select bilinear scaling algorithm. . mp4 Mar 16, 2013 · @maf-soft Because the comma is usually used by ffmpeg to separate filters in a filter chain (in the above example, between scale and pad). mp4 -i overlaybg. g 320x240), you can use the scale filter in its most basic form: ffmpeg -i input. However, it had >1 input(s) and >1 output(s). mp4 Note that i dont want to use any programming language because it's on windows cmd. This will expand the top layer from 480 px height to 1080 height in 2 seconds and then back to 480 px in 2 seconds. Note: The scale filter can also automatically calculate a dimension while preserving the aspect ratio: scale=320:-1, or scale=-1:240 Aug 28, 2012 · I know of the -vf scale filter such as -vf scale=-1:320, but that only takes the width and scales the height accordingly. mp4 -r 60 -c:v libx264 -copytb 1 -vf scale=-2:1080,pad=width=1920:height=1080:x=0:y=656 Jul 1, 2015 · The closest question I've come across is Scale watermark overlay by video size with ffmpeg but that answer uses external Linux/Cygwin commands. Mar 29, 2018 · I got it to work by putting both the crop and the scale in the same -vf tag. -2 = scale using mod 2 -4 = scale using mod 4 etc. 1 9 * FFmpeg is distributed in the hope that it will be useful, 10 Oct 17, 2013 · ffmpeg -i d:\1. mp4. preinit. g. int64_t. Only a single algorithm should be selected. Follow answered Nov 2, 2021 at 21:48. I tried : ffmpeg -i in. My 500 x 100 video would be 320px wide and 1600 pixels tall. 337 -i 1. How would I configure the -vf scale function to do that? Jan 8, 2017 · Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all Jun 24, 2015 · ffmpeg -i infile -vf scale=WIDTH:HEIGHT:flags=neighbor outfile or. s EdgeDetect Foobar g libavfilter vf_edgedetect c libavfilter vf_foobar c edit libavfilter and add an entry for foobar following the pattern of the other filters edit libavfilter allfilters and add an entry for foobar following the pattern of the other filters configure make j< whatever > ffmpeg ffmpeg i you should get a foobar png with Lena edge detected That s your new playground is ready Apr 11, 2021 · This is a more up-to-date version of this question here, which luckily it avoids being a duplicate of because that question is about VirtualDub rather than FFmpeg. jpg" -vf scale=out_color_matrix=bt709,eq=gamma=1:saturation=1 -color_primaries bt709 - May 2, 2019 · ffmpeg -i input. This is also used to set the scaling algorithm. 1) the x265 encoder can't be successfully initialized. Apr 26, 2013 · I'm scaling a video and applying a watermark like so: ffmpeg -ss 0:0:0. Once scaled, I then want to apply a watermark/overlay to the video, therefore Nov 6, 2018 · vf_scale_npp. Mar 7, 2014 · Scale the watermark: ffmpeg -i watermark. mp4 Share. 15:-1 scaled. mp4 -vf "scale=1280:720; subtitles=sub. image ffmpeg Mar 11, 2017 · I'm using the veryslow preset with two passes: ffmpeg -i input. I would like 20 frames per second AND I would also like the images to be scaled up to 1920x1080. ‘bicubic’ Select bicubic scaling algorithm Feb 11, 2023 · For all rungs below 4K, FFmpeg scales the original source footage down to the target resolution using the bicubic scaling algorithm, So, we had two proposed methods which I expanded to four, as follows. 239 Aug 15, 2014 · In the filter chain, you must first scale the image separately, and then perform the overlay. mp4 Since the DAR may no longer be the same, the output can look distorted. I hope someone can help me, fairly new to FFMPEG but really enjoying it this far. 000 -i video. -vf scale=1280:720 applies the scaling filter to resize the video to 1280 pixels in width and 720 pixels in height. h> #include <stdio. Apr 4, 2020 · From what I can recall of my own testing this should work for both 16:9 and non-16:9 video, i think the syntax and order of the setsar function does impact the result Jun 27, 2016 · static int scale_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame) Definition: vf_scale_vaapi. Share. Default is libx264-vf scale=1920:1080 specifying output resolution-c:a copy copy audio as it is without any compression ffmpeg -i input. The remedy is to reset the SAR after scaling. FFmpeg can use scale/sws_flags with lanczos and spline parameters. c:620. 1:1234 -vf scale_cuda=1920:1080 -c:v h264_nvenc -pix_fmt=p010le -b:v 4000k -c:a copy -f mpegts udp://239. FFMIN. 1 9 * FFmpeg is distributed in the hope that it will be useful, 10 The values in scale and pad are derived dynamically and correspond to the video height and video width. ffmpeg Jan 8, 2017 · 11 * FFmpeg is distributed in the hope that it will be useful, 12 const AVFilter ff_vf_scale_vt. Default value is the input dimension. Scale Video to Given Width and Height Using FFmpeg. Set the scaler flags. Feb 12, 2022 · If one and only one of the values is -n with n >= 1, the scale filter will use a value that maintains the aspect ratio of the input image, calculated from the other specified dimension. mp4 -vf drawtext="fontfile=OpenSans-Regular. To scale with ffmpeg I use -vf "scale=-1:720, crop=1280:720" when the source is not 16:9, which is the case. 其实 ffmpeg 所提供的过滤器功能十分复杂，而且功能十分强大。 Jan 8, 2017 · scale_vulkan_config_output() static int scale_vulkan_config_output int scale_vulkan_config_output Sep 21, 2018 · -vf "scale=w=416:h=234:force_original_aspect_ratio=decrease" To:-vf "scale=w=416:h=-2" Should scale to a width of 416 and scale the height appropriately so the aspect ratio keeps the same. 6 By Edgewall Software. mp4 but I only get a: was expected to have exactly 1 input and 1 output. yuv Output: Aug 28, 2016 · Im trying to scale a video so that it is always 512 wide where the height changes in proportion to the original video. like this: -vf "scale=1920:1080 , subtitles=subtitles. mp4" But this runs at only about 240 fps instead of 280 fps compared to the previous May 23, 2020 · ffmpeg -i input. Your expression is outputting a value that is not divisible by 2 (as mentioned by the log) which is required by libx264 when outputting YUV 4:2:0 chroma subsampling. { "out_color vf_scale_vaapi. mp4 -vf scale=1920:1080 fps=20 240_scaled Jan 12, 2018 · AVFilter ff_vf_scale_qsv: Initial value: = {. How to use them both simultaneously? linux; ffmpeg; Share. c:997. c:262. jpg -vf scale=320:240 output_320x240. name = "scale_qsv", Generated on Fri Jan 12 2018 01:48:22 for FFmpeg by vf_scale_npp. 5M -maxrate 8M -vf "scale_cuda=-2:720:format=yuv420p" -c:a copy -c:s copy "output-720p. lanczosにaccurate_rndを併用する。 ffmpeg -i input -vf scale=1280:-2 -sws_flags lanczos+accurate Oct 26, 2016 · How can I set fontsize for drawtext on video according to width and height of each resolutions, to a certain proportion? ffmpeg -i Input. ffmpeg -i 240_video. Feb 11, 2021 · ffmpeg -i input. 1 9 * FFmpeg is distributed in the hope that it will be useful, 10 Jan 8, 2017 · Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample format(the sample packing is implied by the sample format) and sample rate. Oct 26, 2012 · Definition at line 33 of file vf_scale. mp4 -vf scale=1280:-2 output. 643 -fflags +igndts -t 00:00:39. I would like to refrain from first scaling down the images or creating video files from them and then overlay these videos. png The -1 calculates the height based on the aspect ratio of the original image. png -filter_complex "overlay=10:10" video_out. These options are marked ’T’ on the output of ffmpeg-h filter=<name of filter>. Sep 13, 2017 · Using scale_cuda 10bit is still unable to work. c:1051. vob -vcodec libx264 -pass 2 -preset veryslow -threads 0 -b:v 900k -acodec copy out. Some options can be changed during the operation of the filter using a command. c:981. ffmpeg -i video. 例 動画の横幅(width)を 1280 にする。 Mar 2, 2015 · ffmpeg -i input. ffmpeg_encoder_init_frame and ffmpeg_encoder_scale are the key methods. mp4 -y -an -t 0:0:10. The ffmpeg command line: ffmpeg -hwaccel cuvid -c:v h264_cuvid -deint 1 -i udp://238. 1 of the License, or (at your option) any later version Sep 19, 2021 · -vf scale_vaapi=-2:720 "If one and only one of the values is -n with n >= 1, the scale filter will use a value that maintains the aspect ratio of the input image, calculated from the other specified dimension. 你应该会注意到我们使用了两个变量。 iw：输入文件的画面宽度; ih：输入文件的画面高度; 这两个是系统的常量，可以拿来直接使用。 写在最后. リサイズ方法をlanczosに変える。 ffmpeg -i input -vf scale=1280:-2:flags=lanczos output ffmpeg -i input -vf scale=1280:-2 -sws_flags lanczos output. mp4 -vf scale=2560x1440:flags=lanczos -c:v libx264 -preset slow -crf 20 output_compress_1440p. 2. mp4 -vf scale=206:-1 -vsync passthrough xRotation_206. mp4 Options Explained-i input file name or file path-c:v libx265 -vtag hvc1 selecting compression. 1:1234 Oct 20, 2021 · @master00 It is not a quoting issue. long long int64_t. mp4" Jun 18, 2018 · For use in overlaying, you can simulate the intended result using the zoompan filter. May 13, 2014 · Runnable example in FFmpeg 2. 0:1. mp4 -r 60 -c:v libx264 -copytb 1 -vf scale=-2:1080,pad=width=1920:height=1080:x=0:y=656 May 8, 2016 · This command Scale the first images only to 320:320, but i want to scale the second image to 400:400 and i don't know how to specify a scale for the second photo. To maintain the aspect ration, you can specify just the width, followed by -1 which will calculate the height to maintain the aspect ratio of the input: ffmpeg -i input. 2) due to potential rotation, you can't target the correct side. The 2 in -2 makes sure the width is divisible by 2 - see FFmpeg's scale options: width, w. rapttor rapttor. Do you know what's wrong ? Apr 23, 2020 · There are two issues here. After that it will, however, make sure that the calculated dimension is divisible by n and adjust the value if necessary. Visit the Trac open source project at Jan 12, 2018 · vf_scale_qsv. Generated on Thu Apr 18 2024 22:46:14 for FFmpeg by Oct 6, 2018 · ffmpeg -i test. Jul 11, 2020 · Use the scale filter with animation, available since v4. 1 9 * FFmpeg is distributed in the hope that it will be useful, 10 Jun 1, 2017 · I've found out that yes, ffmpeg applies the filters in the order specified; thus it's not a good idea to e. FFmpeg watermark was also helpful while I was figuring ffmpeg out. There is no flag or parameter to do either upscaling or downscaling rather this is determined by the values set for the scale flag. ttf: \ text='New Sep 24, 2019 · I am using ffmpeg -y -ss 00:02:24. ass , unsharp=3. #include <float. To change video resolution to the WIDTH x HEIGHT, you need to use -filter:v scale=WIDTH:HEIGHT as shown below. png The resulting image will look like this: Mar 28, 2020 · I am using ffmpeg to convert frames from an mp4 to png images. 5" (that's how I found it out accidentally) Feb 22, 2021 · I am using this command to scale video ffmpeg -i input. This is not a subjective question as it can be answered definitely by A/V experts who are familiar with the industry literature that measures such metrics, as proven in the the above question, and there's every reason to suspect May 15, 2018 · The scale filter preserves the input's DAR in the output, so that the output does not look distorted. Generate one short video procedurally, and then convert it to 3 different sizes. Jan 8, 2017 · Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all Oct 25, 2015 · ffmpeg -i input -vf "scale=w=1280:h=720:force_original_aspect_ratio=2,crop=1280:720" output Use your player If you don't want to bother with re-encoding, then any player worth using should allow you to do this upon playback. Jan 8, 2017 · 9 * FFmpeg is distributed in the hope that it will be useful, 10 238 // These colour properties match the ones of the same name in vf_scale. That's bad, I need it to be max 500 pixels tall and max width of 320 (just example sizes). yuv -vf scale=960:540 -c:v rawvideo -pix_fmt yuv420p out. c:1053. mp4 . png -y -v quiet -vf scale=1280*0. h"#include "libavutil/hwcontext_cuda See ffmpeg -filters to view which filters have timeline support. AVFilterContext. Go to the documentation of this file. Follow edited Nov 24, 2014 at Jan 8, 2017 · vf_scale_qsv. png,pad=400:3 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. Jun 13, 2018 · I'm trying to scale a video and hardcode subs in it. Jan 12, 2018 · vf_scale_npp. Improve this question. – vf_scale_npp. Generated on Fri Oct 26 02:38:20 2012 for FFmpeg by Jan 8, 2017 · 11 * FFmpeg is distributed in the hope that it will be useful, 12 const AVFilter ff_vf_scale_vt. Dec 31, 2022 · Another working option is to use -hwaccel nvdec without the hwupload_cuda option, e. avi -vf scale=320:240 output. Improve this answer. It accepts the following values: ‘fast_bilinear’ Select fast bilinear scaling algorithm. ffmpeg -i oldVideo. h"#include "libavutil/hwcontext. Lanczos can use additional parameter here: param0 is defined as "the width (alpha)", its default value is 3. mp4-filter: v scale 11 * FFmpeg is distributed in the hope that it will be useful, 12 static const AVFilterPad avfilter_vf_scale_outputs[] Definition: vf_scale. 1 9 * FFmpeg is distributed in the hope that it will be useful, 10 Jan 8, 2017 · Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all * version 2. So far I've mostly used the default scale filter method to scale the x264 video resolution down, for example -vf scale=720:576 but I've noticed that some people often use -vf scale=720:576:flags=name (or -vf scale=720x576:flags=name) where name is the name of the filter. 000 -vf \"[in]scale=400:316[middle]\" -b:v 2000k -r 20 -vf 'movie=watermark. avi -vf scale=720:480 output. ~$ ffmpeg-i INPUT-filter: v scale = WIDTH: HEIGHT OUTPUT. In this command:-i input. c File Reference. 1 9 * FFmpeg is distributed in the hope that it will be useful, 10 Jan 12, 2018 · vf_scale_npp. Definition: vf_scale_qsv. mp4 -i scaled. height, h. – Jun 1, 2017 · I've found out that yes, ffmpeg applies the filters in the order specified; thus it's not a good idea to e. 5" (that's how I found it out accidentally) Apr 4, 2020 · From what I can recall of my own testing this should work for both 16:9 and non-16:9 video, i think the syntax and order of the setsar function does impact the result Jun 27, 2016 · static int scale_vaapi_filter_frame(AVFilterLink *inlink, AVFrame *input_frame) Definition: vf_scale_vaapi. ffmpeg -i <input> -vf "scale=100:-1,setdar=16/9" <output> the command will resize video 200x400 to 100x200 and 400x700 to 100x175 with aspect ratio 16:9. mp4 I thought it had something to do with the Scale of the video but honestly every scale code I tried to use deformed the image a lot. Source: Contribute to FFmpeg/FFmpeg development by creating an account on GitHub. Or an advanced scale with flags and encoding: ffmpeg -i input. Mar 18, 2019 · ffmpeg -i input. // These colour properties match the ones of the same name in vf_scale. Apply scaled watermark to video: ffmpeg -i video_in. 1 9 * FFmpeg is distributed in the hope that it will be useful, 10 Sep 10, 2022 · If you need to simply resize your video to a specific size (e. 1 9 * FFmpeg is distributed in the hope that it will be useful, 10 Feb 24, 2014 · Is it possible to scale a raw YUV video using ffmpeg? I have a 1920x1080 raw yuv video and i want to downscale it to 960x540. mp4 You can't use -2 for both width and height, but if you already specified one dimension then using -2 is a simple solution. mp4 -c:v libx265 -vtag hvc1 -vf scale=1920:1080 -crf 20 -c:a copy output. Definition: vf_scale_npp. 6 Changing options at runtime with a command. mp4 -vf scale=iw*2:ih*2 output. 自動で設定したいほうに -1 をセットする. vf_scale_npp. Basically using arash's method, but runnable so you can try it out. scale_options. Jun 27, 2016 · vf_scale_vaapi. Download in other formats: Plain Text; Powered by Trac 1. By quoting it, ffmpeg will not interpret the comma that way, but use it as part of the first option passed to scale, which is min(1280,iw). h> #include "libavutil/common. 1. I used below command but i didn't work. mov -vf scale=320:-1 output. 1 9 * FFmpeg is distributed in the hope that it will be useful, 10 FFmpeg can use scale/sws_flags with lanczos and spline parameters. mp4 -vf "scale=1280:-1" -movflags +faststart -pix_fmt yuv420p -c:v libx264 -crf 20 "output. avi -filter:v "crop=1280:670" output_video. mp4 -vf scale=1280:720 output. An instance of a filter. 489 4 4 silver Aug 6, 2024 · To resize a video to a specific resolution, such as 1280x720 pixels, use the following FFmpeg command: ffmpeg -i input. mov -vf scale=320:240 output. srt" out. Jun 14, 2018 · FFmpeg, by default, generates constant frame-rate MP4s, so if your original video is variable-frame rate then ffmpeg will drop or duplicate frames to generate a constant frame rate output. inlink. So, for example, if you want to scale down your video to 1280p x 720p, use ~$ ffmpeg-i input. Sep 10, 2024 · If you need to simply resize your video to a specific size (e. 0:3. mp4 -filter_complex "[0]pad=iw*2:ih*2:color=black@0,zoompan=z='min(pzoom+0. mp4 -vf scale=320:240 d:\3. hardsub subtitles first and then apply sharpening filter, e. avi. c:253 Definition at line 431 of file vf_scale_vaapi. Set the output video dimension expression. 8. The final command line (split to multiple lines for better readability): Jul 18, 2022 · I currently have two filters that work great when used individually: ffmpeg -i "D:\imageSequences\A. mp4 -vf scale=480:360,setsar=1 newVideo. c. c . It lets me specify 20 fps after the -vf flag, but it doesn't let me scale the images. Compressing ffmpegで動画のアスペクト比を維持したまま縮小（拡大）する方法; ffmpegで動画の解像度を指定しリサイズ(サイズを変更)する方法; アスペクト比を維持したままリサイズ. Default value is ‘bicubic’. mp4 Oct 27, 2016 · vf_scale_npp. mp4" -map 0 -c:v hevc_nvenc -preset p7 -tune hq -b:v 2. Jan 12, 2018 · AVFilter ff_vf_scale_npp: Initial value: = {. The original mp4 is 240p (426x240). Generated on Wed Aug 24 2022 21:35:07 for FFmpeg by Jun 2, 2022 · 3. AVFilter. Jan 8, 2017 · vf_scale_cuda. I want to add black background instead of stretching the video. mp4 -vf scale=-2:720 output. Feb 23, 2019 · ffmpeg -i input -vf "scale=1280x720:force_original_aspect_ratio=decrease" output. Please adjust, or use a complex filtergraph (-filter_complex) instead. Generated on Thu Apr 18 2024 22:43:06 for FFmpeg by Mar 4, 2019 · With ffmpeg Resize the movie while keeping the aspect ratio FFmpegでアスペクト比を保ったまま動画をリサイズする FFmpegでプレビュー ffmpeg -i input. mp4 -c:v libx264 -crf 31 -me_method umh -bf 0 -vf scale=480:-2 out. avi Same works for images too: ffmpeg -i input. However with this commando FFmpeg complains that -filter_complex and -vf can not be used in the same commando. Definition: vf_scale_vt. 02,2)':d=1:s=2Wx2H[scaled]; [1][scaled]overlay" output. Default (-s 1280×720) Cascade using fast bilinear. mp4 specifies the input video file. Cascade using Lanczos; Video filter using Lanczos (-vf scale=1280×720 -sws_flags lanczos) Dec 21, 2015 · ffmpeg -i input. 3. EXT. The name of the command is the name of the option and the argument is Dec 19, 2017 · Note: See TracWiki for help on using the wiki. avi -vf scale="iw/1:ih/2" output. For a (2xW, 2xH) final size over 50 frames, use. Just prepend your filterchain with [1:v]scale=320:240 [ovrl],[0:v][ovrl]. Here's something to get you started. To avoid that, use. c:996 nppscale_deinterleave static int nppscale_deinterleave(AVFilterContext *ctx, NPPScaleStageContext *stage, AVFrame *out, AVFrame *in) Jan 8, 2017 · 9 * FFmpeg is distributed in the hope that it will be useful, 10 AVFilter ff_vf_scale_qsv. 1 9 * FFmpeg is distributed in the hope that it will be useful, 10 Jan 8, 2017 · Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all Jan 8, 2017 · 11 * FFmpeg is distributed in the hope that it will be useful, 12 const AVFilter ff_vf_scale_vt. : ffmpeg -hide_banner -hwaccel nvdec -hwaccel_output_format cuda -i "input-1080p. static const AVFilterPad avfilter_vf_scale_outputs[] Definition: vf_scale. However, I'm on Windows and invoking ffmpeg via Python, so I'd like to do it all within the filter_complex clause. ffmpeg -i input. ffmpeg -i infile -s WIDTHxHEIGHT -sws_flags neighbor outfile The critical part here is flags or -sws_flags, which selects the filter (and other scaling-related flags). FFmpeg can use zscale with lanczos , spline16 and spline36 parameters. png The resulting image will look like this: Apr 21, 2022 · FFmpeg documentation - scale_cuda-vf "scale_cuda=-2:480" scales to a 480px height and a width calculated to keep the aspect ratio. png I got this from source. mp4 -vf "scale=1280:-1" -f matroska - | ffplay -i - FFmpegでエンコード ffmpeg -i input. It does this by adjusting the SAR of the output. 1 9 * FFmpeg is distributed in the hope that it will be useful, 10 Jan 12, 2018 · 11 * FFmpeg is distributed in the hope that it will be useful, 12 static const AVFilterPad avfilter_vf_scale_outputs[] Definition: vf_scale. 1 9 * FFmpeg is distributed in the hope that it will be useful, 10 static const AVFilterPad avfilter_vf_scale_inputs[] Definition: vf_scale. paccrgpmmwqqirvlxxffotdkoeymuvnzlejlnmxvvglalvomizmuoorf