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run make update-ffmpeg

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Lennart Poettering 2009-03-02 14:33:36 +01:00
parent 505df22add
commit 45ae4abe23
1 changed files with 1 additions and 26 deletions
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27
src/pulsecore/ffmpeg/resample2.c
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@ -20,7 +20,7 @@
*/
/**
* @file resample2.c
* @file libavcodec/resample2.c
* audio resampling
* @author Michael Niedermayer <michaelni@gmx.at>
*/
@ -175,10 +175,6 @@ void av_build_filter(FELEM *filter, double factor, int tap_count, int phase_coun
#endif
}
/**
* Initializes an audio resampler.
* Note, if either rate is not an integer then simply scale both rates up so they are.
*/
AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_size, int phase_shift, int linear, double cutoff){
AVResampleContext *c= av_mallocz(sizeof(AVResampleContext));
double factor= FFMIN(out_rate * cutoff / in_rate, 1.0);
@ -206,33 +202,12 @@ void av_resample_close(AVResampleContext *c){
av_freep(&c);
}
/**
* Compensates samplerate/timestamp drift. The compensation is done by changing
* the resampler parameters, so no audible clicks or similar distortions occur
* @param compensation_distance distance in output samples over which the compensation should be performed
* @param sample_delta number of output samples which should be output less
*
* example: av_resample_compensate(c, 10, 500)
* here instead of 510 samples only 500 samples would be output
*
* note, due to rounding the actual compensation might be slightly different,
* especially if the compensation_distance is large and the in_rate used during init is small
*/
void av_resample_compensate(AVResampleContext *c, int sample_delta, int compensation_distance){
// sample_delta += (c->ideal_dst_incr - c->dst_incr)*(int64_t)c->compensation_distance / c->ideal_dst_incr;
c->compensation_distance= compensation_distance;
c->dst_incr = c->ideal_dst_incr - c->ideal_dst_incr * (int64_t)sample_delta / compensation_distance;
}
/**
* resamples.
* @param src an array of unconsumed samples
* @param consumed the number of samples of src which have been consumed are returned here
* @param src_size the number of unconsumed samples available
* @param dst_size the amount of space in samples available in dst
* @param update_ctx if this is 0 then the context wont be modified, that way several channels can be resampled with the same context
* @return the number of samples written in dst or -1 if an error occurred
*/
int av_resample(AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx){
int dst_index, i;
int index= c->index;