diff options
| -rw-r--r-- | src/pulsecore/ffmpeg/resample2.c | 27 |
1 files changed, 1 insertions, 26 deletions
diff --git a/src/pulsecore/ffmpeg/resample2.c b/src/pulsecore/ffmpeg/resample2.c index ed59448a..ac9db73c 100644 --- a/src/pulsecore/ffmpeg/resample2.c +++ b/src/pulsecore/ffmpeg/resample2.c @@ -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; |