[FFmpeg-user] How to integrate shared object file of libx264 while using ffmpeg for android?
Hi, I am working with integrating ffmpeg for android . Since I needed H.264 encoding I need to integrate libx264 with ffmpeg . Given below are the steps I followed . 1) Build the latest libx264 using android compiler tool-chain to obtain libx264.so.142 . 2) Build ffmpeg v 2.3 referring to this http://www.roman10.net/how-to-build-ffmpeg-with-ndk-r9/ with --enable -libx264 option while configuring ffmpeg . The method explained in the blog included some editing in configure file of ffmpeg to generate shared object files with format [lib name].so rather than the generating shared object file with format [lib name].so.[version] (Since android build system supports files with extension .so only). The building process was successful but since the generated .so files (after building ffmpeg) has dynamic dependency with libx264.so.142,I need to package libx264.so.142 also with the android .apk file . But since the above format (.so.142) is not supported with android apk building system I cannot package it with the .apk . So I think the only option I have is to make some changes in configure file of ffmpeg to change the dynamic dependency of libx264.so.142 to libx264.so . Am I right?? What changes do I need to make to ffmpeg configure file to achieve this? -- Thanks and Regards , David Varghese ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] How to integrate shared object file of libx264 while using ffmpeg for android?
David Varghese davidvrgh at gmail.com writes: 2) Build ffmpeg v 2.3 If you need support on this mailing list, please provide the actual configure line you are using (not an external script) and the problem you have with that configure line. If you believe that our configure script misses some feature necessary for a particular OS (like Android) please report this here! If you have problems building x264, I am not sure this is the right place to ask. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] How to integrate shared object file of libx264 while using ffmpeg for android?
Thanks . I have edited the actual configure file by replacing the following lines , SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)' LIB_INSTALL_EXTRA_CMD='$$(RANLIB) $(LIBDIR)/$(LIBNAME)' SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)' SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)' with the below lines, SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)' LIB_INSTALL_EXTRA_CMD='$$(RANLIB) $(LIBDIR)/$(LIBNAME)' SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)' SLIB_INSTALL_LINKS='$(SLIBNAME)' My intention was to generate shared object files with extension library name - version.so rather than with the extension format libavcodec.so.version . This is because android's binary generating system only supports .so format . When running ffmpeg configure with --enable-libx264 option the generated shared object files (eg : libavutil) has dynamic dependency with libx264.so.version . But I want to make this dependency to library name.so extension format so that android binary packaging system will be able to package shared object for libx264 . On Tue, Aug 5, 2014 at 4:22 PM, Carl Eugen Hoyos ceho...@ag.or.at wrote: David Varghese davidvrgh at gmail.com writes: 2) Build ffmpeg v 2.3 If you need support on this mailing list, please provide the actual configure line you are using (not an external script) and the problem you have with that configure line. If you believe that our configure script misses some feature necessary for a particular OS (like Android) please report this here! If you have problems building x264, I am not sure this is the right place to ask. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user -- Thanks and Regards , David Varghese ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] How to integrate shared object file of libx264 while using ffmpeg for android?
David Varghese davidvrgh at gmail.com writes: I have edited the actual configure file You (of course!) cannot get support here if you edit your configure file. Instead, please report what does not work with the unchanged source so we can fix it. If you want to compile for Android, please use the configure option --target-os=android (this should stop FFmpeg from building shared libraries with major version in the file name). Please do not top-post here. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] How to integrate shared object file of libx264 while using ffmpeg for android?
David Varghese davidvrgh at gmail.com writes: Using configure option --target-os=android is generating shared object files which has extension supported by android (.so) . Thank you for testing this! But when I use --enable -libx264 option the libavutil.so (which is generated after building ffmpeg) is having a dynamic dependency to the shared object file libx264.so.142 Do I understand correctly that you built a binary of x264 that has an incorrect so name? Is it perhaps sufficient to rename the library? Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Any better documentation?
Thanks everyone, I will be reading more about your suggestions. I also found this http://manpages.ubuntu.com/manpages/oneiric/man1/ffmpeg.1.html to be better than what I paid for the pdf book, as you can see I am the very beginner, and thought the book is not a man page but some tutorial. It turns out it is somewhat in between. I am using Window with the command window. I do not use linux etc. but I have some unix commands in dos command window. man ffmpeg does not come up with man page, maybe my manpath has not set up. That is OK, I just want it to do simple thing. Is there a GNU version of ffmpeg? *Stephen Ho * 510-364-8941 (c) stephenh...@gmail.com 925-398-6808 x183 (vm) StephenHoRealty.com http://www.StephenHoRealty.com On Tue, Aug 5, 2014 at 2:01 AM, James Darnley james.darn...@gmail.com wrote: On 2014-08-05 08:48, Stephen Ho wrote: I did this command ffmpeg -i abc.mp4 -f hevc abc.avi got my file size to 5% of the original, and the resolution is really bad and no sound. Then I did ffmpeg -i abc.mp4 -f h264 abc.avi and the file size is 45%, the video resolution is great (like the input file), but still no sound. What do you expect to happen when you ask ffmpeg to create a raw video stream? -f controls the file format not the video codec. If you can't handle ffmpeg's own help, accessible through -h, try reading them online here: http://ffmpeg.org/documentation.html My suggestion for a good quality encode: ffmpeg -i INPUT -vcodec libx264 -preset medium -crf 21 -threads 0 OUTPUT I also wonder why you are wanting to re-encode an MP4 file. I doubt you will make it that much smaller and keep decent quality seeing the rest of your requirements. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Any better documentation?
On Aug 5, 2014 10:30 PM, Stephen Ho stephenh...@gmail.com wrote: I am using Window with the command window. I do not use linux etc. but I have some unix commands in dos command window. man ffmpeg does not come up with man page, maybe my manpath has not set up. That is OK, I just want it to do simple thing. if you just want to do something simple, you'd be better using gui that interfacing ffmpeg, like FFactory. it easy to use. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Any better documentation?
Am Dienstag 05 August 2014, 08:29:51 schrieb Stephen Ho: Thanks everyone, I will be reading more about your suggestions. I also found this http://manpages.ubuntu.com/manpages/oneiric/man1/ffmpeg.1.html to be better than what I paid for the pdf book, as you can see I am the very beginner, and thought the book is not a man page but some tutorial. It Ubuntu ships a very old manpage. Many things have changed since version 0.7.2. Maybe you take a look at: http://ffmpeg.org/documentation.html Gerion On Tue, Aug 5, 2014 at 2:01 AM, James Darnley james.darn...@gmail.com wrote: On 2014-08-05 08:48, Stephen Ho wrote: I did this command ffmpeg -i abc.mp4 -f hevc abc.avi got my file size to 5% of the original, and the resolution is really bad and no sound. Then I did ffmpeg -i abc.mp4 -f h264 abc.avi and the file size is 45%, the video resolution is great (like the input file), but still no sound. What do you expect to happen when you ask ffmpeg to create a raw video stream? -f controls the file format not the video codec. If you can't handle ffmpeg's own help, accessible through -h, try reading them online here: http://ffmpeg.org/documentation.html My suggestion for a good quality encode: ffmpeg -i INPUT -vcodec libx264 -preset medium -crf 21 -threads 0 OUTPUT I also wonder why you are wanting to re-encode an MP4 file. I doubt you will make it that much smaller and keep decent quality seeing the rest of your requirements. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Re: [FFmpeg-user] Any better documentation?
Wow, thank you @Gabri, FFactory is easy to use and good enough for me. I put in 10 files expected to convert them and appended together into one, and it actually convert each individually. I will play with ffmpeg a bit more, I aim to do this. ffmpeg -i file1.mp4 file2.mp4 file3.mp4 (something like this == resolution hd720, medium quality, h264 or hevc/265, into container .avi and sound should not matter much for file size) finaloutput.avi *Stephen Ho * 510-364-8941 (c) stephenh...@gmail.com 925-398-6808 x183 (vm) StephenHoRealty.com http://www.StephenHoRealty.com On Tue, Aug 5, 2014 at 8:34 AM, Gabri Shally gabri...@gmail.com wrote: On Aug 5, 2014 10:30 PM, Stephen Ho stephenh...@gmail.com wrote: I am using Window with the command window. I do not use linux etc. but I have some unix commands in dos command window. man ffmpeg does not come up with man page, maybe my manpath has not set up. That is OK, I just want it to do simple thing. if you just want to do something simple, you'd be better using gui that interfacing ffmpeg, like FFactory. it easy to use. ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
