ffmpeg-extract-frame- Extracts a single frame from a video. ffmpeg-generate-video-preview- Generates an attractive image strip or GIF preview from a video. gif-extract-frames- Analogous module for extracting frames from GIF files. fluent-ffmpeg- A fluent API toFFmpeg. awesome-ffmpeg- A curated...
1. 11月5日下午4点开始,内存使用率逐步上升,说明那段时间测试了视频,线程一直处于堵塞状态; 2. 查看了一下dump文件(jmap -dump:live,format=b,file=heap.dmp PID),发现有很多线程在extractVideoFirstFrame方法时阻塞; 3. 11月6日10点半左右,重启了一下应用,内存立马就下来了,可以断定,这就是因为内存使用率...
Extracting a single frameIf we want to extract just a single frame (-vframes 1) from the video (Yosemite) into an image file, we do:ffmpeg -i yosemiteA.mp4 -ss 00:00:18.123 -f image2 -vframes 1 yosemite.png ss: set the start time offset. f: force format. vframes: set the ...
-report generate a report -max_alloc bytes set maximum size of a single allocated block -y overwrite output files -n never overwrite output files -ignore_unknown Ignore unknown stream types -filter_threads number of non-complex filter threads -filter_complex_threads number of threads for -filter...
参考链接: https://blog.csdn.net/xiaolong1126626497/article/details/104919095
9.100 Bitstream filters: aac_adtstoasc av1_frame_merge av1_frame_split av1_metadata chomp dump_extra dca_core eac3_core extract_extradata filter_units h264_metadata h264_mp4toannexb h264_redundant_pps hapqa_extract hevc_metadata hevc_mp4toannexb imxdump mjpeg2jpeg mjpegadump mp3decomp ...
extract frame with FFMPEG ffmpeg.exe-isourcefile -r0.1-f image2 -s240*180foo-%03d.jpg extract 10frames per minute from the sourcefile, with the image size 240*180, and all of the file are saved as f00-%03d.jpg
ffmpeg:(Hyper fast Autio and Video encoder)超快音视频编码器(类似于爱剪辑)。 ffplay:(Simple media player)简单媒体播放器 ffprobe:(Simple multimedia streams analyzer)简单多媒体流分析器 在上面官网图片里面中,如果大家要详细了解ffmpeg、ffplay、ffprobe三个工具的使用,可以点击进去,里面有非常详细的介绍!这里接...
av_read_frame: 该函数用于从输入文件中读取一个封装数据包(AVPacket)。 av_write_frame或av_interleaved_write_frame: 这两个函数用于将封装数据包(AVPacket)写入输出文件。av_interleaved_write_frame会对数据包进行交错处理以获得更好的播放性能。 avformat_close_input: 该函数用于关闭输入文件并释放相关资源。
If all attempts to detect the frame counter fail, you will get a single frame output. If you select a few frames that belong to different sequences, they will be transcoded independently. If you select a few images of the same image sequence you will get separate outputs for each with di...