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author | Michael Niedermayer <michaelni@gmx.at> | 2009-02-09 15:31:08 +0000 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2009-02-09 15:31:08 +0000 |
commit | 3136fcf45ec7c8fc45171f628ecf5001f4d486a7 (patch) | |
tree | 9f45d87e8135bd68d9eb4ea8329c06ee4e37637e /libavcodec/resample2.c | |
parent | e2a004ad4ef502d43f0628b0618decc679d905ca (diff) | |
download | ffmpeg-3136fcf45ec7c8fc45171f628ecf5001f4d486a7.tar.gz |
Move doxy for public resample2 functions to the public header.
Originally committed as revision 17099 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/resample2.c')
-rw-r--r-- | libavcodec/resample2.c | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/libavcodec/resample2.c b/libavcodec/resample2.c index 75766e8659..ac9db73c8c 100644 --- a/libavcodec/resample2.c +++ b/libavcodec/resample2.c @@ -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 will not 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; |