Unified · Split
| @@ -145,10 +145,11 @@ static void audiogen(void *data, enum AVSampleFormat sample_fmt, · 144 unmodified lines | |||
| 145 | double tabf1[SWR_CH_MAX]; | 145 | double tabf1[SWR_CH_MAX]; |
| 146 | double tabf2[SWR_CH_MAX]; | 146 | double tabf2[SWR_CH_MAX]; |
| 147 | double taba[SWR_CH_MAX]; | 147 | double taba[SWR_CH_MAX]; |
| 148 | unsigned static seed; | 148 | unsigned static rnd; |
| 149 | 149 | ||
| 150 | #define PUT_SAMPLE set(data, ch, k, channels, sample_fmt, v); | 150 | #define PUT_SAMPLE set(data, ch, k, channels, sample_fmt, v); |
| 151 | #define dbl_rand(x) ((seed = seed * 1664525 + 1013904223)*2.0 / (double)UINT_MAX - 1) | 151 | #define uint_rand(x) (x = x * 1664525 + 1013904223) |
| 152 | #define dbl_rand(x) (uint_rand(x)*2.0 / (double)UINT_MAX - 1) | ||
| 152 | k = 0; | 153 | k = 0; |
| 153 | 154 | ||
| 154 | /* 1 second of single freq sinus at 1000 Hz */ | 155 | /* 1 second of single freq sinus at 1000 Hz */ |
| @@ -187,8 +188,8 @@ static void audiogen(void *data, enum AVSampleFormat sample_fmt, · 32 unmodified lines | |||
| 187 | /* 1 second of unrelated ramps for each channel */ | 188 | /* 1 second of unrelated ramps for each channel */ |
| 188 | for (ch = 0; ch < channels; ch++) { | 189 | for (ch = 0; ch < channels; ch++) { |
| 189 | taba[ch] = 0; | 190 | taba[ch] = 0; |
| 190 | tabf1[ch] = 100 + (seed = seed * 1664525 + 1013904223) % 5000; | 191 | tabf1[ch] = 100 + uint_rand(rnd) % 5000; |
| 191 | tabf2[ch] = 100 + (seed = seed * 1664525 + 1013904223) % 5000; | 192 | tabf2[ch] = 100 + uint_rand(rnd) % 5000; |
| 192 | } | 193 | } |
| 193 | for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) { | 194 | for (i = 0; i < 1 * sample_rate && k < nb_samples; i++, k++) { |
| 194 | for (ch = 0; ch < channels; ch++) { | 195 | for (ch = 0; ch < channels; ch++) { |