<div dir="ltr"><div><div>Hi Luveh,<br><br></div>I checked ffmpeg, ffmpeg3 builds with opencv-legacy. <br></div><div>The readme of ffmpeg4 does not mention this detail BTW. <br></div><div><br></div><div>The ffmpeg4 of slackware64-current builds without the need of openvc though. </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, 20 Apr 2020 at 22:13, Luveh Keraph <<a href="mailto:1.41421@gmail.com">1.41421@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">With the provisos mentioned in my previous communication, I was able to build ffmpeg4.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Apr 20, 2020 at 11:36 AM Luveh Keraph <<a href="mailto:1.41421@gmail.com" target="_blank">1.41421@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">It is building all right, in that it did not choke on opencv as I reported here before. However, I could not get opencv-legacy to build with tesseract already installed. I had to remove tesseract, build and install opencv-legacy, build and install tesseract, and then launch the build of ffmpeg4. The build job for ffmpeg4 is still ongoing; I'll report on the outcome.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Apr 20, 2020 at 8:49 AM Jheengut Pritvi <<a href="mailto:z.coldplayer@gmail.com" target="_blank">z.coldplayer@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><div>Hi, <br></div>I have not tried the latest version but can you confirm if the legacy opencv is needed instead. <br></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, 19 Apr 2020 at 20:15, Luveh Keraph <<a href="mailto:1.41421@gmail.com" target="_blank">1.41421@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">I am using the following ffmpeg4.sqf file in a freshly installed (and up-to-date) 14.2 system:<div><br></div><div>libass<br>chromaprint<br>frei0r<br>ladspa_sdk<br>libaom<br>libbluray<br>libbs2b<br>celt<br>libdc1394<br>libfdk-aac<br>flite<br>libgme<br>gsm<br>libiec61883 <br>libavc1394<br>libilbc<br>libmodplug<br>lame<br>opencore-amr<br>opencv<br>opus<br>rtmpdump<br>rubberband<br>snappy<br>speex<br>tesseract<br>twolame<br>vid.stab<br>libwebp<br>x264<br>x265<br>xvidcore<br>zeromq<br>zvbi<br>ffmpeg4 | BINS=yes CHROMAPRINT=yes FREI0R=yes LADSPA=yes LIBAOM=yes LIBBLURAY=yes LIBBS2B=yes LIBCELT=yes LIBDC1394=yes LIBFDK_AAC=yes LIBFLITE=yes LIBGME=yes LIBGSM=yes LIBIEC61883=yes LIBILBC=yes LIBMODPLUG=yes LIBMP3LAME=yes LIBOPENCORE=yes LIBOPENCV=yes LIBOPUS=yes LIBRTMP=yes LIBRUBBERBAND=yes LIBSNAPPY=yes LIBSPEEX=yes LIBTESSERACT=yes LIBTWOLAME=yes LIBVIDSTAB=yes LIBWEBP=yes LIBX264=yes LIBX265=yes LIBXVID=yes LIBZMQ=yes LIBZVBI=yes<br></div><div><br></div><div>I encountered the following issues:</div><div><br></div><div>1. var-plugin-sdk is required for rubberband.</div><div>2. leptonica is required for tesseract (I think).</div><div>3. ffmpeg4 seems to be looking for opencv, while the script above installs opencv4:</div><div><br></div><div>ffmpeg-4.1/tests/checkasm/jpeg2000dsp.c<br>ffmpeg-4.1/tests/checkasm/synth_filter.c<br>ffmpeg-4.1/tests/checkasm/vf_nlmeans.c<br>ffmpeg-4.1/tests/tiny_psnr.c<br>ffmpeg-4.1/COPYING.LGPLv2.1<br>ffmpeg-4.1/README.md<br>ffmpeg-4.1/CONTRIBUTING.md<br>ERROR: opencv not found using pkg-config<br></div><div><br></div><div># pkg-config --list-all|grep opencv </div><div>opencv4 OpenCV - Open Source Computer Vision Library<br></div></div>
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