Fixed DSD format converter
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parent
43fdae655b
commit
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1 changed files with 13 additions and 1 deletions
14
DigestPlay.c
14
DigestPlay.c
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@ -18,6 +18,8 @@
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#define DSD_MAGIC_SIZE 4
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#define DSD_AMBE_CHUNK_SIZE 8
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#define LINEAR_FRAME_SIZE 7
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#define HELPER(value) #value
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#define STRING(value) HELPER(value)
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@ -190,6 +192,8 @@ int main(int argc, char* argv[])
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// Wait for timer event (60 milliseconds)
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while (read(handle, &mark, sizeof(uint64_t)) > 0)
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{
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// Read AMBE chunks of DSD format
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ssize_t length1 = read(STDIN_FILENO, buffer + 0 * DSD_AMBE_CHUNK_SIZE, DSD_AMBE_CHUNK_SIZE);
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ssize_t length2 = read(STDIN_FILENO, buffer + 1 * DSD_AMBE_CHUNK_SIZE, DSD_AMBE_CHUNK_SIZE);
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ssize_t length3 = read(STDIN_FILENO, buffer + 2 * DSD_AMBE_CHUNK_SIZE, DSD_AMBE_CHUNK_SIZE);
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@ -202,11 +206,19 @@ int main(int argc, char* argv[])
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break;
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}
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// Convert to linear format
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buffer[0 * DSD_AMBE_CHUNK_SIZE + 7] <<= 7;
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buffer[1 * DSD_AMBE_CHUNK_SIZE + 7] <<= 7;
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buffer[2 * DSD_AMBE_CHUNK_SIZE + 7] <<= 7;
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TransmitRewindData(context, REWIND_TYPE_DMR_AUDIO_FRAME, REWIND_FLAG_REAL_TIME_1, buffer, 3 * DSD_AMBE_CHUNK_SIZE);
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memmove(buffer + 0 * LINEAR_FRAME_SIZE, buffer + 0 * DSD_AMBE_CHUNK_SIZE + 1, LINEAR_FRAME_SIZE);
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memmove(buffer + 1 * LINEAR_FRAME_SIZE, buffer + 1 * DSD_AMBE_CHUNK_SIZE + 1, LINEAR_FRAME_SIZE);
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memmove(buffer + 2 * LINEAR_FRAME_SIZE, buffer + 2 * DSD_AMBE_CHUNK_SIZE + 1, LINEAR_FRAME_SIZE);
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// Transmit DMR linear frame
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TransmitRewindData(context, REWIND_TYPE_DMR_AUDIO_FRAME, REWIND_FLAG_REAL_TIME_1, buffer, 3 * LINEAR_FRAME_SIZE);
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if ((count % 83) == 0)
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{
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