Hi Robert, Sorry for the delay. There is the new update on the ffmpeg plug-in.
Now it should support any audio format that ffmpeg can manage. I tested it with ffmpeg versions from 1.0 to 2.4. It is using libswresample to convert the audio when it is in an "offending" format. New extension added to supported formats: ".ts" for MPEG-2 transport streams Now audio output can be requested in whatever sample rate, sample format and channel layout. It defaults to 48kHz, S16 and stereo when no options are passed to the plug-in. New parameters were added as plug-in options: out_sample_format - Output requested sample format (default S16) out_sample_rate - Output requested sample rate (default 48000 Hz) out_nb_channels - Output number of channels (default 2 channels, stereo) mad - Max analyze duration, time spent detecting video stream parameters rtsp_transport - Enable RTSP transport over udp, tcp, udp_multicast or http Cheers! On Wed, Dec 17, 2014 at 8:22 PM, Robert Osfield <[email protected]> wrote: > HI Javier, > > Sorry for the slow turnaround on this submissions. I have now merged it > and checked it into svn/trunk. I am still seeing problems with the audio > on most of the videos I have - these all have floating point planar audio. > > Since SDL1.x doesn't support floating point audio buffers I've added > support to the osgmovie example for compiling against SDL2.x. > Unfortunately this only allows us to play the audio, the actual quality is > very distorted. I haven't yet been able to track down why. On a movie I > have with S16 audio everything works nice and clearly though. I have > checked the addition of SDL2 support into svn/trunk. > > Could you please test out OSG svn/trunk and let me know how you get on, > > Thanks, > Robert. > > Robert. > > On 31 January 2014 at 17:46, Javier Taibo <[email protected]> wrote: > >> Hi Robert, >> >> I have found that since version 1.1, FFMPEG changed the way audio >> streams are retrieved, from packed to planar format. SDL interprets packed >> audio, as is used in the osgmovie example. To make the audio work when the >> OSGffmpeg plug-in is compiled against recent FFMPEG versions, >> FFmpegDecoderAudio must check for planar formats and in these cases request >> the samples as packed. This way all works as before. It can be checked with >> osgmovie example application. >> >> $ osgmovie --audio movie.avi.ffmpeg >> FFmpegImageStream::open audio failed, audio stream will be disabled: >> unknown audio format >> >> With the attached FFmpegDecoderAudio.cpp, audio sounds correctly. >> >> I am also attaching a modified version of FindFFmpeg.cmake that allows >> to set as FFMPEG_DIR the ffmpeg compiled in the source directory structure. >> It should not break anything as it only adds some additional search paths. >> >> >> Regards, >> >> -- >> Javier Taibo >> >> >> _______________________________________________ >> osg-submissions mailing list >> [email protected] >> >> http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org >> >> -- Javier Taibo
osg_ffmpeg.tgz
Description: GNU Zip compressed data
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