On Sun, Jul 15, 2012 at 5:35 PM, Ken Resander <kresander at yahoo.com> wrote: > I want to use pjsip video, but the build of pjsip 2.0.1 on Ubuntu 10.04 > LTS failed with message: > > "./src/pjmedia-codec/ffmpeg_vid_codecs.c:258:5: error: #error "Must use > libavcodec version 53.20 or later to enable FFMPEG H264" > > The PCs here run the current Long-Term_Support (LTS) version 10.04 of > Ubuntu and it is not possible to move away from that at the moment. > > Libavcodec53 is available for Ubuntu 12.04 and 11.10 but not for Ubuntu > 10.04. I checked with Synaptic Manager and Software Centre on 10.04 and > these do not show libavcodec53 as a choice, only libavcodec52. So > libavcodec53 is not in the standard repositories of Ubuntu 10.04. > > Q1. can I obtain libavcodec53 et al in some other way? I believe I only > need the libavxxxxs (what are they?), not the command-line ffmpeg (correct?) > > I am using 10.04 too, and I surely don't want to upgrade workstation because of pjsip either. :) The solution is easy though, just download the latest ffmpeg and configure/install it to a private directory using --prefix argument to configure, then use --with-ffmpeg option when running pjsip's configure to tell it where ffmpeg is. The same for SDL etc. > Q2. can I leave out the H264 video and still experiment to get a feel for > how to use pjsip with video, for example by using H263? I notice pjsip also > supports AVI. Is that available without H264? > > Sure. For AVI, we support decoding few more codecs such as MJPEG. > There is a macro PJMEDIA_HAS_FFMPEG_CODEC_H264 defined in > pjmedia/include/pjmedia-codec/config.h and referenced in > pjmedia-codec/ffmpeg_vid_codecs.c. > > Q3. should I set PJMEDIA_HAS_FFMPEG_CODEC_H264 to 0 in config.h? Is that > safe or are there better ways to force a build without H264 support? > > No. *Always* use config_site.h to override the settings. Have you not read the user's guide (I hope this is written there somewhere). :) > Q4. is it possible to build with H264 support using libavcodec52 i.e. by > not using the very latest libavxxxs? Would that result in reduced h264 > functionality say, or is it impossible? If possible, what do I need to do? > > See Q1. Benny > Regards > Ken > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120716/bb96e649/attachment.html>
