int swr_convert(struct SwrContext *s, uint8_t *out_arg[SWR_CH_MAX], int out_count, const uint8_t *in_arg [SWR_CH_MAX], int in_count){ AudioData * in= &s->in; AudioData *out= &s->out; if(s->drop_output > 0){ int ret; uint8_t *tmp_arg[SWR_CH_MAX]; if((ret=swri_realloc_audio(&s->drop_temp, s->drop_output))<0) return ret; reversefill_audiodata(&s->drop_temp, tmp_arg); s->drop_output *= -1; //FIXME find a less hackish solution ret = swr_convert(s, tmp_arg, -s->drop_output, in_arg, in_count); //FIXME optimize but this is as good as never called so maybe it doesnt matter s->drop_output *= -1; if(ret>0) s->drop_output -= ret; if(s->drop_output || !out_arg) return 0; in_count = 0; } if(!in_arg){ if(s->resample){ if (!s->flushed) s->resampler->flush(s); s->resample_in_constraint = 0; s->flushed = 1; }else if(!s->in_buffer_count){ return 0; } }else fill_audiodata(in , (void*)in_arg); fill_audiodata(out, out_arg); if(s->resample){ int ret = swr_convert_internal(s, out, out_count, in, in_count); if(ret>0 && !s->drop_output) s->outpts += ret * (int64_t)s->in_sample_rate; return ret; }else{ AudioData tmp= *in; int ret2=0; int ret, size; size = FFMIN(out_count, s->in_buffer_count); if(size){ buf_set(&tmp, &s->in_buffer, s->in_buffer_index); ret= swr_convert_internal(s, out, size, &tmp, size); if(ret<0) return ret; ret2= ret; s->in_buffer_count -= ret; s->in_buffer_index += ret; buf_set(out, out, ret); out_count -= ret; if(!s->in_buffer_count) s->in_buffer_index = 0; } if(in_count){ size= s->in_buffer_index + s->in_buffer_count + in_count - out_count; if(in_count > out_count) { //FIXME move after swr_convert_internal if( size > s->in_buffer.count && s->in_buffer_count + in_count - out_count <= s->in_buffer_index){ buf_set(&tmp, &s->in_buffer, s->in_buffer_index); copy(&s->in_buffer, &tmp, s->in_buffer_count); s->in_buffer_index=0; }else if((ret=swri_realloc_audio(&s->in_buffer, size)) < 0) return ret; } if(out_count){ size = FFMIN(in_count, out_count); ret= swr_convert_internal(s, out, size, in, size); if(ret<0) return ret; buf_set(in, in, ret); in_count -= ret; ret2 += ret; } if(in_count){ buf_set(&tmp, &s->in_buffer, s->in_buffer_index + s->in_buffer_count); copy(&tmp, in, in_count); s->in_buffer_count += in_count; } } if(ret2>0 && !s->drop_output) s->outpts += ret2 * (int64_t)s->in_sample_rate; return ret2; } }