diff --git a/libavcodec/resample.c b/libavcodec/resample.c index 56b7917444370156670f8b34fa9fad435bf62364..63371b0a1d8b9b0fc41d2d033be5f6a69e503853 100644 --- a/libavcodec/resample.c +++ b/libavcodec/resample.c @@ -175,7 +175,7 @@ int audio_resample(ReSampleContext *s, short *output, short *input, int nb_sampl short *buftmp2[2], *buftmp3[2]; int lenout; - if (s->input_channels == s->output_channels && s->ratio == 1.0) { + if (s->input_channels == s->output_channels && s->ratio == 1.0 && 0) { /* nothing to do */ memcpy(output, input, nb_samples * s->input_channels * sizeof(short)); return nb_samples; diff --git a/libavcodec/resample2.c b/libavcodec/resample2.c index e4115118a236095c2a7f5d7c9a93f5e3bc33154b..47eeb0a2d8e191f934141d69a3be900374aedda7 100644 --- a/libavcodec/resample2.c +++ b/libavcodec/resample2.c @@ -123,8 +123,8 @@ AVResampleContext *av_resample_init(int out_rate, int in_rate){ c->filter_length= ceil(16.0/factor); c->filter_bank= av_mallocz(c->filter_length*(PHASE_COUNT+1)*sizeof(short)); av_build_filter(c->filter_bank, factor, c->filter_length, PHASE_COUNT, 1<filter_bank[c->filter_length*PHASE_COUNT + (c->filter_length-1) + 1]= (1<filter_bank[c->filter_length*PHASE_COUNT + (c->filter_length-1) + 2]= 1; + c->filter_bank[c->filter_length*PHASE_COUNT + (c->filter_length-1)/2 + 1]= (1<filter_bank[c->filter_length*PHASE_COUNT + (c->filter_length-1)/2 + 2]= 1; c->src_incr= out_rate; c->ideal_dst_incr= c->dst_incr= in_rate * PHASE_COUNT; @@ -170,7 +170,7 @@ int av_resample(AVResampleContext *c, short *dst, short *src, int *consumed, int if(sample_index < 0){ for(i=0; ifilter_length; i++) - val += src[ABS(sample_index + i)] * filter[i]; + val += src[ABS(sample_index + i) % src_size] * filter[i]; }else if(sample_index + c->filter_length > src_size){ break; }else{ @@ -199,6 +199,9 @@ int av_resample(AVResampleContext *c, short *dst, short *src, int *consumed, int index++; } } + *consumed= FFMAX(index, 0) >> PHASE_SHIFT; + index= FFMIN(index, 0); + if(update_ctx){ if(c->compensation_distance){ c->compensation_distance -= dst_index; @@ -206,9 +209,8 @@ int av_resample(AVResampleContext *c, short *dst, short *src, int *consumed, int c->dst_incr= c->ideal_dst_incr; } c->frac= frac; - c->index=0; + c->index= index; } - *consumed= index >> PHASE_SHIFT; #if 0 if(update_ctx && !c->compensation_distance){ #undef rand