audio_format: unsigned integers

src/audio.c

@@ -150,7 +150,7 @@ int parseAudioConfig(struct audio_format *audioFormat, char *conf)
 		return -1;
 	}
 
-	audioFormat->bits = (int8_t)strtol(test + 1, &test, 10);
+	audioFormat->bits = (uint8_t)strtoul(test + 1, &test, 10);
 
 	if (*test != ':') {
 		ERROR("error parsing audio output format: %s\n", conf);
@@ -161,12 +161,12 @@ int parseAudioConfig(struct audio_format *audioFormat, char *conf)
 	case 16:
 		break;
 	default:
-		ERROR("bits %i can not be used for audio output\n",
-		      (int)audioFormat->bits);
+		ERROR("bits %u can not be used for audio output\n",
+		      audioFormat->bits);
 		return -1;
 	}
 
-	audioFormat->channels = (int8_t)strtol(test + 1, &test, 10);
+	audioFormat->channels = (uint8_t)strtoul(test + 1, &test, 10);
 
 	if (*test != '\0') {
 		ERROR("error parsing audio output format: %s\n", conf);

src/audioOutputs/audioOutput_alsa.c

@@ -153,7 +153,7 @@ static int alsa_openDevice(void *data, struct audio_format *audioFormat)
 	unsigned int buffer_time;
 
 	if ((bitformat = get_bitformat(audioFormat)) == SND_PCM_FORMAT_UNKNOWN)
-		ERROR("ALSA device \"%s\" doesn't support %i bit audio\n",
+		ERROR("ALSA device \"%s\" doesn't support %u bit audio\n",
 		      ad->device, audioFormat->bits);
 
 	err = snd_pcm_open(&ad->pcmHandle, ad->device,
@@ -201,7 +201,7 @@ configure_hw:
 
 	err = snd_pcm_hw_params_set_format(ad->pcmHandle, hwparams, bitformat);
 	if (err < 0) {
-		ERROR("ALSA device \"%s\" does not support %i bit audio: "
+		ERROR("ALSA device \"%s\" does not support %u bit audio: "
 		      "%s\n", ad->device, audioFormat->bits, snd_strerror(-err));
 		goto fail;
 	}
@@ -290,8 +290,8 @@ configure_hw:
 
 	ad->sampleSize = audio_format_sample_size(audioFormat) * audioFormat->channels;
 
-	DEBUG("ALSA device \"%s\" will be playing %i bit, %i channel audio at "
-	      "%i Hz\n", ad->device, (int)audioFormat->bits,
+	DEBUG("ALSA device \"%s\" will be playing %i bit, %u channel audio at "
+	      "%i Hz\n", ad->device, audioFormat->bits,
 	      channels, sampleRate);
 
 	return 0;

src/audioOutputs/audioOutput_mvp.c

@@ -111,7 +111,7 @@ static void mvp_finishDriver(struct audio_output *audioOutput)
 }
 
 static int mvp_setPcmParams(MvpData * md, unsigned long rate, int channels,
-			    int big_endian, int bits)
+			    int big_endian, unsigned bits)
 {
 	int iloop;
 	int mix[5];

src/audioOutputs/audioOutput_shout.c

@@ -252,7 +252,7 @@ static void *my_shout_init_driver(struct audio_output *audio_output,
 		char temp[11];
 		memset(temp, 0, sizeof(temp));
 
-		snprintf(temp, sizeof(temp), "%d", sd->audio_format.channels);
+		snprintf(temp, sizeof(temp), "%u", sd->audio_format.channels);
 		shout_set_audio_info(sd->shout_conn, SHOUT_AI_CHANNELS, temp);
 
 		snprintf(temp, sizeof(temp), "%d", sd->audio_format.sampleRate);

src/audio_format.h

@@ -24,8 +24,8 @@
 
 struct audio_format {
 	uint32_t sampleRate;
-	int8_t bits;
-	int8_t channels;
+	uint8_t bits;
+	uint8_t channels;
 };
 
 static inline void audio_format_clear(struct audio_format *af)

src/pcm_utils.c

@@ -113,7 +113,7 @@ void pcm_volumeChange(char *buffer, int bufferSize,
 		break;
 
 	default:
-		FATAL("%i bits not supported by pcm_volumeChange!\n",
+		FATAL("%u bits not supported by pcm_volumeChange!\n",
 		      format->bits);
 	}
 }
@@ -188,7 +188,7 @@ static void pcm_add(char *buffer1, const char *buffer2, size_t size,
 		break;
 
 	default:
-		FATAL("%i bits not supported by pcm_add!\n", format->bits);
+		FATAL("%u bits not supported by pcm_add!\n", format->bits);
 	}
 }
 
@@ -436,7 +436,7 @@ pcm_convert_24_to_16(int16_t *out, const int32_t *in,
 	}
 }
 
-static const char *pcm_convertTo16bit(int8_t bits, const char *inBuffer,
+static const char *pcm_convertTo16bit(uint8_t bits, const char *inBuffer,
 				      size_t inSize, size_t *outSize)
 {
 	static char *buf;