Added experimental options for spdif output (for debugging purpose)

diff --git a/aplay/aplay.c b/aplay/aplay.c
index bae02ce..85cbfdd 100644 (file)
--- a/aplay/aplay.c
+++ b/aplay/aplay.c
@@ -83,6 +83,7 @@ static int verbose = 0;
 static int buffer_pos = 0;
 static size_t bits_per_sample, bits_per_frame;
 static size_t buffer_bytes;
+int digital = SND_PCM_DIG_NONE;
 
 static int count;
 static int vocmajor, vocminor;
@@ -151,6 +152,8 @@ Usage: %s [OPTION]... [FILE]...
 -X, --xfer-min=#        min xfer size is # milliseconds
 -v, --verbose            show PCM structure and setup
 -I, --separate-channels  one file for each channel
+-P, --iec958p            AES IEC958 professional
+-C, --iec958c            AES IEC958 consumer
 ", command);
        fprintf(stderr, "Recognized sample formats are:");
        for (k = 0; k < 32; ++k) {
@@ -266,6 +269,8 @@ int main(int argc, char *argv[])
                {"xfer-min", 1, 0, 'X'},
                {"buffer-length", 1, 0, 'B'},
                {"verbose", 0, 0, 'v'},
+               {"iec958c", 0, 0, 'C'},
+               {"iec958p", 0, 0, 'P'},
                {"separate-channels", 0, 0, 'I'},
                {0, 0, 0, 0}
        };
@@ -389,6 +394,12 @@ int main(int argc, char *argv[])
                case 'I':
                        interleaved = 0;
                        break;
+               case 'C':
+                       digital = SND_PCM_DIG_AES_IEC958C;
+                       break;
+               case 'P':
+                       digital = SND_PCM_DIG_AES_IEC958P;
+                       break;
                default:
                        fprintf(stderr, "Try `%s --help' for more information.\n", command);
                        return 1;
@@ -401,6 +412,29 @@ int main(int argc, char *argv[])
                return 1;
        }
 
+       if (digital != SND_PCM_DIG_NONE) {
+               snd_pcm_dig_params_t dig;
+               memset(&dig, 0, sizeof(dig));
+               dig.group = 0;
+               dig.val.aes.status[0] = SND_PCM_AES0_NONAUDIO;
+               dig.type = digital;
+               switch (digital) {
+               case SND_PCM_DIG_AES_IEC958P:
+                       dig.val.aes.status[0] |= SND_PCM_AES0_PROFESSIONAL;
+                       dig.val.aes.status[0] |= SND_PCM_AES0_PRO_FS_48000;
+                       break;
+               case SND_PCM_DIG_AES_IEC958C:
+                       dig.type = SND_PCM_DIG_AES_IEC958C;
+                       dig.val.aes.status[3] |= SND_PCM_AES3_CON_FS_48000;
+                       break;
+               }
+               err = snd_pcm_dig_params(handle, &dig);
+               if (err < 0) {
+                       error("dig_params setting error: %s", snd_strerror(err));
+                       return 1;
+               }
+       }
+
        if (nonblock) {
                err = snd_pcm_nonblock(handle, 1);
                if (err < 0) {