FreeCalypso > hg > gsm-codec-lib
annotate libtest/roberead.c @ 244:fcc0887ff0d0
doc/FR1-Rx-DTX: document changes from 1.0.0 to 1.0.1
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 09 May 2023 17:28:19 +0000 |
parents | 9814041e8096 |
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libtest: pcmwrite helper function and module
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1 /* |
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2 * Here we implement our PCM read helper function for "robe" format. |
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libtest: pcmwrite helper function and module
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3 */ |
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libtest: pcmwrite helper function and module
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4 |
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5 #include <stdio.h> |
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6 #include <stdint.h> |
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7 #include "roberead.h" |
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8 |
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9 int robe_get_pcm_block(FILE *inf, int16_t *pcm) |
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10 { |
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11 uint8_t bytes[320], *dp; |
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12 int cc, i; |
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13 |
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14 cc = fread(bytes, 1, 320, inf); |
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15 cc >>= 1; |
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16 dp = bytes; |
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17 for (i = 0; i < cc; i++) { |
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18 pcm[i] = (dp[0] << 8) | dp[1]; |
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19 dp += 2; |
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20 } |
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21 while (i < 160) |
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22 pcm[i++] = 0; |
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23 return cc; |
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24 } |