There are shortcuts too, -map 0:v selects all the video type streams as -map 0:a does for audio type streams. Processing what you mapped is done sequentially, -map 0:0 is the video stream and was my first map so once I had finished mapping the first action was going to be run on this video stream. Keeping only the video, English audio and subtitles however encode the video (fast crf 25): ffmpeg -i inputfile.mkv -map 0:0 -map 0:1 -map 0:2 -c:v libx264 -preset fast -crf 25 -c:a copy -c:s copy english-output.mp4 Making a French only audio copy with: ffmpeg -i inputfile.mkv -map 0:3 french-audio.mp3 Ī simple FFmpeg map example to create an audio only and then a video only copy from the input: ffmpeg -i inputfile.mkv -map 0:1 audio.mp3 -map 0:0 video.mp4īecause Stream #0:1 is the audio stream and #0:0 is the video stream. You will see (depending on your input file) multiple streams, they look like: Stream #0:0: Video: hevc. Run ffmpeg -i inputfile to see all the information about the media. Video usually has different streams for quality when it is a live stream.
Streams means video, audio, subtitles, attachments and data within the file this is rather complex on movie files where there could be multiple audio streams for different languages and the same for subtitles. Install the package via composer: composer require aminyazdanpanah/php-ffmpeg-video-streamingĪlternatively, add the dependency directly to your composer.Map in FFmpeg can be best understood as selecting streams within a file you want to encode, keep or remove when creating an output. You will need both FFmpeg and FFProbe binaries to use it. To use this package, you need to install the FFmpeg. This version of the package is only compatible with PHP 7.2 or higher. For using encryption and DRM, I recommend trying Shaka PHP, which is a great tool for this use case. You can build your own filters and some are bundled in PHP-FFMpeg - they are accessible through the FFMpeg\Media\Audio.Description FFmpeg is often called the Swiss Army knife of video transcoding/streaming. Full Documentation is available describing all features and components. We start with simple examples and build up more complex scenarios in a step-by-step fashion.
Full Documentation is available describing all features and components.
There are several options to open a file from a cloud and save files to clouds as well. There are several options to open a file from a cloud and save files to clouds as well. This library is a wrapper around PHP-FFMpeg and packages media content for online streaming such as DASH and HLS. This library is a wrapper around PHP-FFMpeg and packages media content for online streaming such as DASH and HLS.
0 kommentar(er)
