PHP-FFMpeg/PHP-FFMpeg

how to extract frames without save a video?

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#514 建立於 2018年4月9日

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 (3 留言) (1 反應) (0 負責人)PHP (4,641 star) (915 fork)batch import
Featurehelp wanted

描述

the document for extractMultipleFrames is not clear, since we add the folder to method extractMultipleFrames, why we need to add another path to save method? the folder is the place to save all frames, but specify it there doesn't work as expect, we have to extract frames when transcode a video into another format, this is not what we need.

$video
    ->filters()
    ->extractMultipleFrames(FFMpeg\Filters\Video\ExtractMultipleFramesFilter::FRAMERATE_EVERY_10SEC, '/path/to/destination/folder/')
    ->synchronize();

$video
    ->save(new FFMpeg\Format\Video\X264(), '/path/to/new/file');

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技術棧
無
領域
documentation
議題類型
documentation
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
2
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
under 1 hour
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stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
無
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
90
研究方向
Review the current documentation for the extractMultipleFrames method in the PHP FFMpeg library. The issue indicates confusion about why both a folder path in the filter method and a save path in the save method are required when the folder should be the destination. Investigate the API design to understand the intended usage and clarify the documentation to explain the purpose of each path. Look at the ExtractMultipleFramesFilter class and the Video::save method to determine if there is a way to use only the folder path without specifying a new video file. Update the relevant documentation file (likely README or wiki) to provide clearer examples and explanation.