Unified · Split
| @@ -108,7 +108,7 @@ static int config_input(AVFilterLink *inlink) · 107 unmodified lines | |||
| 108 | 108 | ||
| 109 | generate_window_func(s->window, s->fft_size, WFUNC_SINE, &overlap); | 109 | generate_window_func(s->window, s->fft_size, WFUNC_SINE, &overlap); |
| 110 | 110 | ||
| 111 | iscale = 1.f / s->fft_size; | 111 | iscale = 1.f / (s->fft_size * 1.5f); |
| 112 | 112 | ||
| 113 | ret = av_tx_init(&s->tx_ctx[0], &s->tx_fn, AV_TX_FLOAT_RDFT, 0, s->fft_size, &scale, 0); | 113 | ret = av_tx_init(&s->tx_ctx[0], &s->tx_fn, AV_TX_FLOAT_RDFT, 0, s->fft_size, &scale, 0); |
| 114 | if (ret < 0) | 114 | if (ret < 0) |
| @@ -296,13 +296,10 @@ static int de_stereo(AVFilterContext *ctx, AVFrame *out) · 181 unmodified lines | |||
| 296 | memcpy(left_osamples, left_in, overlap * sizeof(float)); | 296 | memcpy(left_osamples, left_in, overlap * sizeof(float)); |
| 297 | memcpy(right_osamples, right_in, overlap * sizeof(float)); | 297 | memcpy(right_osamples, right_in, overlap * sizeof(float)); |
| 298 | 298 | ||
| 299 | // 4 times overlap with squared hanning window results in 1.5 time increase in amplitude | 299 | if (ctx->is_disabled) |
| 300 | if (!ctx->is_disabled) { | ||
| 301 | for (int i = 0; i < overlap; i++) | ||
| 302 | center_osamples[i] = left_out[i] / 1.5f; | ||
| 303 | } else { | ||
| 304 | memset(center_osamples, 0, overlap * sizeof(float)); | 300 | memset(center_osamples, 0, overlap * sizeof(float)); |
| 305 | } | 301 | else |
| 302 | memcpy(center_osamples, left_out, overlap * sizeof(float)); | ||
| 306 | 303 | ||
| 307 | return 0; | 304 | return 0; |
| 308 | } | 305 | } |