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Fixed DSD format converter

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This commit is contained in:
Artem Prilutskiy 2017-05-23 17:24:13 +03:00
parent 43fdae655b
commit f3bf149f7f
1 changed files with 13 additions and 1 deletions
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14
DigestPlay.c
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@ -18,6 +18,8 @@
#define DSD_MAGIC_SIZE 4
#define DSD_AMBE_CHUNK_SIZE 8
#define LINEAR_FRAME_SIZE 7
#define HELPER(value) #value
#define STRING(value) HELPER(value)
@ -190,6 +192,8 @@ int main(int argc, char* argv[])
// Wait for timer event (60 milliseconds)
while (read(handle, &mark, sizeof(uint64_t)) > 0)
{
// Read AMBE chunks of DSD format
ssize_t length1 = read(STDIN_FILENO, buffer + 0 * DSD_AMBE_CHUNK_SIZE, DSD_AMBE_CHUNK_SIZE);
ssize_t length2 = read(STDIN_FILENO, buffer + 1 * DSD_AMBE_CHUNK_SIZE, DSD_AMBE_CHUNK_SIZE);
ssize_t length3 = read(STDIN_FILENO, buffer + 2 * DSD_AMBE_CHUNK_SIZE, DSD_AMBE_CHUNK_SIZE);
@ -202,11 +206,19 @@ int main(int argc, char* argv[])
break;
}
// Convert to linear format
buffer[0 * DSD_AMBE_CHUNK_SIZE + 7] <<= 7;
buffer[1 * DSD_AMBE_CHUNK_SIZE + 7] <<= 7;
buffer[2 * DSD_AMBE_CHUNK_SIZE + 7] <<= 7;
TransmitRewindData(context, REWIND_TYPE_DMR_AUDIO_FRAME, REWIND_FLAG_REAL_TIME_1, buffer, 3 * DSD_AMBE_CHUNK_SIZE);
memmove(buffer + 0 * LINEAR_FRAME_SIZE, buffer + 0 * DSD_AMBE_CHUNK_SIZE + 1, LINEAR_FRAME_SIZE);
memmove(buffer + 1 * LINEAR_FRAME_SIZE, buffer + 1 * DSD_AMBE_CHUNK_SIZE + 1, LINEAR_FRAME_SIZE);
memmove(buffer + 2 * LINEAR_FRAME_SIZE, buffer + 2 * DSD_AMBE_CHUNK_SIZE + 1, LINEAR_FRAME_SIZE);
// Transmit DMR linear frame
TransmitRewindData(context, REWIND_TYPE_DMR_AUDIO_FRAME, REWIND_FLAG_REAL_TIME_1, buffer, 3 * LINEAR_FRAME_SIZE);
if ((count % 83) == 0)
{