[0:00] Welcome to the world of
[0:02] FFmpeg. FFmpeg is a powerful command
[0:04] line tool used for processing audio and
[0:07] video files. This tool is a versatile
[0:10] solution for handling multimedia
[0:14] files. So what exactly is
[0:17] FFmpeg? FFmpeg is a free and open-source
[0:20] software project. It includes a suite of
[0:23] libraries and programs. It's designed
[0:26] for handling video, audio, and other
[0:28] multimedia files and streams. Some of
[0:31] its key features include the ability to
[0:33] convert between different file formats,
[0:36] resize and scale video, extract audio
[0:38] from video, compress media files, and
[0:41] even apply filters and
[0:44] effects. Now, let's dive into the basic
[0:47] syntax of
[0:48] FFmpeg. The command structure generally
[0:51] looks like this. ffmpeg followed by
[0:54] global options then input options along
[0:56] with the input file and finally output
[0:59] options with the desired output file. A
[1:02] simple example of this would be
[1:04] ffmpeg
[1:06] input.mpp4
[1:08] output.webm. This command converts a
[1:10] video from mp4 format to webbm format.
[1:16] Let's explore some common FFmpeg options
[1:20] for input and output. - I specifies the
[1:23] input file. - F is used to force a
[1:26] specific input or output file format. -
[1:29] Y overwrites output files without asking
[1:32] for confirmation and -ash N ensures that
[1:35] output files are never overwritten. When
[1:38] working with video, - C: V sets the
[1:40] video codec. - R adjusts the frame rate
[1:44] specified in hertz.
[1:46] - S sets the frame size using width by
[1:48] height or an
[1:50] abbreviation and -B colon V sets the
[1:52] video bit
[1:55] rate. Now let's consider some of the
[1:57] audio options available in
[1:59] FFmpeg. Dash C is sets the audio codec.
[2:04] -ash B cols the audio bit rate dash A R
[2:08] sets the audio sampling rate dash C sets
[2:11] the number of audio channels and -ash A
[2:14] disables audio recording as an example
[2:17] the command ffmpeg- i
[2:20] inputmpp4- c
[2:23] aac-b a 192k output to mp4 converts
[2:27] audio to the AAC codec at 192 kilobits
[2:31] per second. Another example,
[2:34] ffmpeg- i
[2:37] input.mpp4-vn c ampp3
[2:41] output.mpp3 extracts audio from a video
[2:43] into the mp3 format. Finally, the
[2:46] command ffmpeg-
[2:49] iinput.wav-
[2:54] ar44,100-ac2output.wav converts the
[2:55] audio to 44.1 kohertz stereo audio.
[3:01] Let's explore some practical video
[3:03] conversion examples. To convert video
[3:06] from MP4 to MKV container format using
[3:09] H.264 video codec and AAC audio codec,
[3:13] you can use the command
[3:14] ffmpeg-
[3:16] input.mpp4- CV
[3:20] libx264- C AAC output MKV. To resize a
[3:26] video to 720p resolution, that is
[3:31] 1,280x720 while keeping the original
[3:33] audio stream unchanged, you can use the
[3:35] command ffmpeg- i input mp4-
[3:42] s,280x720- c a copy output mp4. To
[3:47] change the frame rate of a video to 30
[3:49] frames per second while preserving the
[3:50] original audio, use the command
[3:53] ffmpeg- i
[3:55] input.mpp4- r30- c a copy
[4:01] output.mpp4. Let's explore some advanced
[4:04] video operations.
[4:06] To extract a clip from 1 minute 30
[4:08] seconds to 2 minutes 45 seconds from the
[4:10] input video without re-encoding which
[4:12] makes it faster. You can use the command
[4:15] ffmpeg- i input mp4- ss
[4:19] 0001 col
[4:24] 30-2000245- copy output mp4. To add a
[4:28] watermark such as a logo.png png to the
[4:31] top left corner of the video positioned
[4:33] at 1010. You can use the command ffmpeg-
[4:37] iinput.mpp4-
[4:39] logo.png-filter complex overlay equals
[4:42] 10 col 10
[4:44] output.mpp4. To create a GIF from the
[4:46] first 5 seconds of a video at 10 frames
[4:48] per second, scale to 320 pixels width,
[4:52] you can use the command
[4:53] ffmpeg-input.mpp4-vf
[4:55] mp4-vf quotes fps= 10 scale equals
[4:59] 320-1
[5:04] quotes-toutput.gif. Now let's look at
[5:06] some common audio operations you can
[5:08] perform with
[5:09] ffmpeg. To extract audio from a video
[5:12] file and convert it to MP3 format at 192
[5:15] kilobits per second bit rate, you can
[5:17] use the command
[5:19] ffmpeg- i input
[5:22] atmpp4-vn c
[5:25] ampp3-b a 192k output mp3. To replace
[5:30] the original audio track in a video with
[5:32] a new audio file, you can use the
[5:34] command ffmpeg-
[5:37] iide.mpp4- idio.mpp3. MP3- C col v copy-
[5:42] mapap 0 col v
[5:45] 0-map 1 col a 0 output mp4 to double the
[5:50] volume of the audio track in a video
[5:52] file. You can use the command ffmpeg-
[5:56] iinput.mpp4-filter col a quotes volume
[5:58] 2.0 quotes
[6:02] output.mpp4. Let's explore streaming and
[6:05] recording
[6:06] functionalities. To stream a video file
[6:08] to an RTMP server like YouTube or Twitch
[6:11] using h.264 video and AAC audio, you can
[6:15] use the command ffmpeg- i input mp4- cv
[6:21] libx264- c
[6:23] aac- fvv
[6:29] rtserver
[6:30] slive slream. To record the screen on
[6:34] Linux at 30 frames per second, use the
[6:36] command
[6:38] ffmpeg-fx11
[6:46] grab-s1920x180-0.0-r30output.mpp4. Note
[6:48] that for Windows, you should use
[6:50] -fgdigra- desktop instead. To record
[6:53] from a webcam for 60 seconds on Linux,
[6:56] you can use the command
[6:59] ffmpeg-f4l2-
[7:01] i/dv/
[7:03] video0-t webcam_captured mp4. On
[7:08] Windows, use -fdow- i video equals
[7:11] camera name
[7:13] instead. Here are some pro tips to
[7:15] enhance your ffmpeg experience. Use -ash
[7:19] copy when possible to avoid re-encoding
[7:22] and save time. Preview commands with
[7:25] -ash tend to process just the first 10
[7:28] seconds. Check available codecs with
[7:32] ffmpeg-codeex. Use dashhide banner to
[7:35] reduce output
[7:36] verbosity. Always check the output file
[7:39] to ensure the desired quality and format
[7:41] were achieved. For learning resources,
[7:44] refer to the official documentation at
[7:46] ffmpeg.org/document.
[7:48] or/documentation html the ffmpeg wiki at
[7:54] track.fmpeg.org/wiki the man pages which
[7:56] can be accessed by typing man ffmpeg in
[7:58] the terminal and the help command
[8:01] ffmpeg-h or for specific options
[8:04] ffmpeg h filter equals scale. Also don't
[8:08] forget to check community forms and
[8:10] stack overflow for specific use cases.
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[8:22] such useful content.
[8:27] [Music]