On Mon, Aug 11, 2014 at 12:53:30PM -0700, Timothy Gu wrote: > On Aug 10, 2014 4:49 PM, "Michael Niedermayer" <michae...@gmx.at> wrote: [...] > > + * to an internal FIFO buffer, to be returned at the next call to this > function > > + * or to swr_convert() or to swr_convert_frame(). > > at the next call to this function or to swr_convert(). > > > + * > > + * If converting sample rate, there may be data remaining in the internal > > + * resampling delay buffer. swr_get_delay() tells the number of > > + * remaining samples. To get this data as output, call this function or > > + * swr_convert() with NULL input. > > + * > > + * If the SwrContext configuration does not match the output and > > + * input AVFrame settings the conversion does not take place and > depending on > > + * which AVFrame is not matching AVERROR_OUTPUT_CHANGED, > AVERROR_INPUT_CHANGED > > > + * or AVERROR_OUTPUT_CHANGED|AVERROR_INPUT_CHANGED is returned. > > or the result of a bitwise-OR of them is returned.
both changed > > > + * > > + * @see swr_delay() > > + * @see swr_convert() > > + * @see swr_get_delay() > > + * > > + * @param swr audio resample context > > + * @param output output AVFrame > > + * @param input input AVFrame > > + * @return 0 on success, AVERROR on failure or nonmatching > > + * configuration. > > + */ > > +int swr_convert_frame(SwrContext *swr, > > + AVFrame *output, AVFrame *input); > > + > > +/** > > + * Configure or reconfigure the SwrContext using the information > > + * provided by the AVFrames. > > + * > > > + * The original resampling context is reset even on failure. > > + * The function calls swr_close() internally if the context is open. > > swr_close does nothing. Is it appropriate to list it here? Also, I don't > think SwrContext has a concept of open or close. it has a concept of initialized vs not initialized and close returns it to the non initilaized state [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB In fact, the RIAA has been known to suggest that students drop out of college or go to community college in order to be able to afford settlements. -- The RIAA
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