FFmpeg

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Was anyone able to have faster porcessing with FFMPEG? I have a bunch of GPU but it is using very little, and it is being VERY SLOW at making a...

AIhasArrived

这个有解决办法吗 [ERROR:1] global /tmp/pip-req-build-hwenbn4e/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp (1077) open Could not find decoder for codec_id=0 [ERROR:1] global /tmp/pip-req-build-hwenbn4e/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp (1109) open VIDEOIO/FFMPEG: Failed to initialize VideoCapture

mozeqiu

RTSP（H265）转rtmp报错：[swscaler @ 0x13416e0] deprecated pixel format used, make sure you did set range correctly

1


z-feiyu

金山云ffmpeg对视频流按帧截图

2

hi，您们 麻烦确认一下，金山云FFmpeg是不是不支持对视频流进行截图的啊。 当进行截图命令： ./ffmpeg -i /root/gb_play_34020001001327000200_34020001001327000201.flv -ss 10 -y -f image2 -vframes 100 /root/imgs/img-%03d.jpg 提示： [NULL @ 0x13682c0] Requested output format 'image2' is not a suitable output format 请问有其他解决方案么，可以支持H265视频流的截图

AsDuang

Hi , guys. could u provide release bin which could directly run on windows like ffmpeg.exe ffprobe.exe ?

lion117

LD ffplay_g LD ffmpeg_g Undefined symbols for architecture x86_64: "_avpriv_dnxhd_get_frame_size", referenced from: _dnxhd_parse in libavcodec.a(dnxhd_parser.o) Undefined symbols for architecture x86_64: "_avpriv_dnxhd_get_frame_size", referenced from: _dnxhd_parse in libavcodec.a(dnxhd_parser.o) "_ff_dnxhd_cid_table", referenced from: _dnxhd_parse...

jiangjkd

可以的话命令是什么？

wenganxiang

@fpzeng 您好，我参考《H.265 RTMP推流使用指南》上的方法，用libx265推了一个rtmp流，但ffplay播放时报错 [AVBSFContext @ 0x7fd6540b1f20] No start code is found. 0B f=0/0 rtmp://192.168.1.100/live/h265: could not find codec parameters 但若用libx264推流就没有问题。RTMP服务器我用的是nginx-rtmp-module, ffplay用的金山云ffmpeg编译的。另外，我还试了下ks-webplayer，也无法播放h265的rtmp流。请教下这该怎么解决呢？ 万分感谢！

ghost

实在是不懂怎么编译成windows版本的 有木有哪位好心人帮忙编译一下

songyu719

支持FLV H265的patch编译遇到了问题

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https://github.com/ksvc/FFmpeg/wiki/hevcpush zexudeMBP:FFmpeg zexu$ make j8 make: *** No rule to make target `j8'. Stop. 平台：MAC OS

harlanc