aplay: Add support for G711 A law on .au files

Commit Message

Christophe Leroy Aug. 10, 2022, 9:25 a.m. UTC

.au files support G711 A law as well. Add it to aplay.

Signed-off-by: Christophe Leroy <[e-mail]>
---
 aplay/aplay.c   | 9 +++++++++
 aplay/formats.h | 1 +
 2 files changed, 10 insertions(+)

Patch

diff --git a/aplay/aplay.c b/aplay/aplay.c
index 6ce7191..c004bf9 100644
--- a/aplay/aplay.c
+++ b/aplay/aplay.c
@@ -1210,6 +1210,12 @@  static int test_au(int fd, void *buffer)
 			fprintf(stderr, _("Warning: format is changed to S16_BE\n"));
 		hwparams.format = SND_PCM_FORMAT_S16_BE;
 		break;
+	case AU_FMT_ALAW:
+		if (hwparams.format != DEFAULT_FORMAT &&
+		    hwparams.format != SND_PCM_FORMAT_A_LAW)
+			fprintf(stderr, _("Warning: format is changed to A_LAW\n"));
+		hwparams.format = SND_PCM_FORMAT_A_LAW;
+		break;
 	default:
 		return -1;
 	}
@@ -2735,6 +2741,9 @@  static void begin_au(int fd, size_t cnt)
 	case SND_PCM_FORMAT_S16_BE:
 		ah.encoding = BE_INT(AU_FMT_LIN16);
 		break;
+	case SND_PCM_FORMAT_A_LAW:
+		ah.encoding = BE_INT(AU_FMT_ALAW);
+		break;
 	default:
 		error(_("Sparc Audio doesn't support %s format..."), snd_pcm_format_name(hwparams.format));
 		prg_exit(EXIT_FAILURE);
diff --git a/aplay/formats.h b/aplay/formats.h
index ac0a2b0..cbc99fe 100644
--- a/aplay/formats.h
+++ b/aplay/formats.h
@@ -121,6 +121,7 @@  typedef struct {
 #define AU_FMT_ULAW		1
 #define AU_FMT_LIN8		2
 #define AU_FMT_LIN16		3
+#define AU_FMT_ALAW		27
 
 typedef struct au_header {
 	u_int magic;		/* '.snd' */