René J.V. Bertin <rjvbertin@...> writes: > The SIMD version ran twice as fast as the scalar version > until I used gcc 4.7, which has auto-vectorisation
Unfortunately, turning auto-vectorisation on triggers bugs in gcc and is therefore no option;-( [...] > > One could argue that on this mailing list, only self-compiled > > FFmpeg is supported > > One could, but that argument would not be supported by > the mailing list's own title: > "This list is about using libavcodec, libavformat, > libavutil, libavdevice and libavfilter. <libav-user@...>" > > The concept "using libav*" doesn't imply anything about > how you obtained the libraries We only provide sources and therefore only support self-compiled versions. And since this is a mailing list for developers, it makes absolutely no sense to argue "compilation is so difficult", especially as it is only a question of doing "./configure && make" if you are not cross- compiling. > and indeed, who built the libraries you're using > (as opposed to which and how) should be irrelevant. > It does however constitute a clear invitation to > post questions like "how do I convert an audio format". And such questions are welcome here! As said, I think a cast should not be necessary when calling swr_convert(), so this is a good start, but gdb will probably tell you more exactly. Carl Eugen _______________________________________________ Libav-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/libav-user
