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Redefine formats to be native-endian instead of little-endian.

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This commit is contained in:
David Reid
2018-08-05 18:16:51 +10:00
parent 26b60d4447
commit 07410da499
1 changed files with 134 additions and 69 deletions
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mini_al.h
+134 -69
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@@ -118,7 +118,7 @@
// - If mal_device_init() is called with a device that's not aligned to the platform's natural alignment
// boundary (4 bytes on 32-bit, 8 bytes on 64-bit), it will _not_ be thread-safe. The reason for this
// is that it depends on members of mal_device being correctly aligned for atomic assignments.
// - Sample data is always little-endian and interleaved. For example, mal_format_s16 means signed 16-bit
// - Sample data is always native-endian and interleaved. For example, mal_format_s16 means signed 16-bit
// integer samples, interleaved. Let me know if you need non-interleaved and I'll look into it.
// - The sndio backend is currently only enabled on OpenBSD builds.
//
@@ -9222,16 +9222,6 @@ typedef size_t (* mal_snd_pcm_info_sizeof_proc)
typedef const char* (* mal_snd_pcm_info_get_name_proc) (const mal_snd_pcm_info_t* info);
typedef int (* mal_snd_config_update_free_global_proc) ();
mal_snd_pcm_format_t g_mal_ALSAFormats[] = {
MAL_SND_PCM_FORMAT_UNKNOWN, // mal_format_unknown
MAL_SND_PCM_FORMAT_U8, // mal_format_u8
MAL_SND_PCM_FORMAT_S16_LE, // mal_format_s16
MAL_SND_PCM_FORMAT_S24_3LE, // mal_format_s24
//MAL_SND_PCM_FORMAT_S24_LE, // mal_format_s24_32
MAL_SND_PCM_FORMAT_S32_LE, // mal_format_s32
MAL_SND_PCM_FORMAT_FLOAT_LE // mal_format_f32
};
// This array specifies each of the common devices that can be used for both playback and capture.
const char* g_malCommonDeviceNamesALSA[] = {
"default",
@@ -9279,20 +9269,52 @@ float mal_find_default_buffer_size_scale__alsa(const char* deviceName)
mal_snd_pcm_format_t mal_convert_mal_format_to_alsa_format(mal_format format)
{
return g_mal_ALSAFormats[format];
mal_snd_pcm_format_t ALSAFormats[] = {
MAL_SND_PCM_FORMAT_UNKNOWN, // mal_format_unknown
MAL_SND_PCM_FORMAT_U8, // mal_format_u8
MAL_SND_PCM_FORMAT_S16_LE, // mal_format_s16
MAL_SND_PCM_FORMAT_S24_3LE, // mal_format_s24
MAL_SND_PCM_FORMAT_S32_LE, // mal_format_s32
MAL_SND_PCM_FORMAT_FLOAT_LE // mal_format_f32
};
if (mal_is_big_endian()) {
ALSAFormats[0] = MAL_SND_PCM_FORMAT_UNKNOWN;
ALSAFormats[1] = MAL_SND_PCM_FORMAT_U8;
ALSAFormats[2] = MAL_SND_PCM_FORMAT_S16_BE;
ALSAFormats[3] = MAL_SND_PCM_FORMAT_S24_3BE;
ALSAFormats[4] = MAL_SND_PCM_FORMAT_S32_BE;
ALSAFormats[5] = MAL_SND_PCM_FORMAT_FLOAT_BE;
}
return ALSAFormats[format];
}
mal_format mal_convert_alsa_format_to_mal_format(mal_snd_pcm_format_t formatALSA)
{
switch (formatALSA)
{
case MAL_SND_PCM_FORMAT_U8: return mal_format_u8;
case MAL_SND_PCM_FORMAT_S16_LE: return mal_format_s16;
case MAL_SND_PCM_FORMAT_S24_3LE: return mal_format_s24;
//case MAL_SND_PCM_FORMAT_S24_LE: return mal_format_s24_32
case MAL_SND_PCM_FORMAT_S32_LE: return mal_format_s32;
case MAL_SND_PCM_FORMAT_FLOAT_LE: return mal_format_f32;
default: return mal_format_unknown;
if (mal_is_little_endian()) {
switch (formatALSA) {
case MAL_SND_PCM_FORMAT_S16_LE: return mal_format_s16;
case MAL_SND_PCM_FORMAT_S24_3LE: return mal_format_s24;
case MAL_SND_PCM_FORMAT_S32_LE: return mal_format_s32;
case MAL_SND_PCM_FORMAT_FLOAT_LE: return mal_format_f32;
default: break;
}
} else {
switch (formatALSA) {
case MAL_SND_PCM_FORMAT_S16_BE: return mal_format_s16;
case MAL_SND_PCM_FORMAT_S24_3BE: return mal_format_s24;
case MAL_SND_PCM_FORMAT_S32_BE: return mal_format_s32;
case MAL_SND_PCM_FORMAT_FLOAT_BE: return mal_format_f32;
default: break;
}
}
// Endian agnostic.
switch (formatALSA) {
case MAL_SND_PCM_FORMAT_U8: return mal_format_u8;
default: return mal_format_unknown;
}
}
@@ -10312,11 +10334,19 @@ mal_result mal_device_init__alsa(mal_context* pContext, mal_device_type type, co
MAL_SND_PCM_FORMAT_FLOAT_LE, // mal_format_f32
MAL_SND_PCM_FORMAT_S32_LE, // mal_format_s32
MAL_SND_PCM_FORMAT_S24_3LE, // mal_format_s24
//MAL_SND_PCM_FORMAT_S24_LE, // mal_format_s24_32
MAL_SND_PCM_FORMAT_S16_LE, // mal_format_s16
MAL_SND_PCM_FORMAT_U8 // mal_format_u8
};
if (mal_is_big_endian()) {
preferredFormatsALSA[0] = MAL_SND_PCM_FORMAT_FLOAT_BE;
preferredFormatsALSA[1] = MAL_SND_PCM_FORMAT_S32_BE;
preferredFormatsALSA[2] = MAL_SND_PCM_FORMAT_S24_3BE;
preferredFormatsALSA[3] = MAL_SND_PCM_FORMAT_S16_BE;
preferredFormatsALSA[4] = MAL_SND_PCM_FORMAT_U8;
}
formatALSA = MAL_SND_PCM_FORMAT_UNKNOWN;
for (size_t i = 0; i < (sizeof(preferredFormatsALSA) / sizeof(preferredFormatsALSA[0])); ++i) {
if (((mal_snd_pcm_format_mask_test_proc)pContext->alsa.snd_pcm_format_mask_test)(pFormatMask, preferredFormatsALSA[i])) {
@@ -11322,20 +11352,29 @@ mal_result mal_result_from_pulse(int result)
#if 0
mal_pa_sample_format_t mal_format_to_pulse(mal_format format)
{
switch (format)
{
case mal_format_u8: return MAL_PA_SAMPLE_U8;
case mal_format_s16: return MAL_PA_SAMPLE_S16LE;
//case mal_format_s16be: return MAL_PA_SAMPLE_S16BE;
case mal_format_s24: return MAL_PA_SAMPLE_S24LE;
//case mal_format_s24be: return MAL_PA_SAMPLE_S24BE;
//case mal_format_s24_32: return MAL_PA_SAMPLE_S24_32LE;
//case mal_format_s24_32be: return MAL_PA_SAMPLE_S24_32BE;
case mal_format_s32: return MAL_PA_SAMPLE_S32LE;
//case mal_format_s32be: return MAL_PA_SAMPLE_S32BE;
case mal_format_f32: return MAL_PA_SAMPLE_FLOAT32LE;
//case mal_format_f32be: return PA_SAMPLE_FLOAT32BE;
if (mal_is_little_endian()) {
switch (format) {
case mal_format_s16: return MAL_PA_SAMPLE_S16LE;
case mal_format_s24: return MAL_PA_SAMPLE_S24LE;
case mal_format_s32: return MAL_PA_SAMPLE_S32LE;
case mal_format_f32: return MAL_PA_SAMPLE_FLOAT32LE;
default: return MAL_PA_SAMPLE_INVALID;
}
} else {
switch (format) {
case mal_format_s16: return MAL_PA_SAMPLE_S16BE;
case mal_format_s24: return MAL_PA_SAMPLE_S24BE;
case mal_format_s32: return MAL_PA_SAMPLE_S32BE;
case mal_format_f32: return MAL_PA_SAMPLE_FLOAT32BE;
default: return MAL_PA_SAMPLE_INVALID;
}
}
// Endian agnostic.
switch (format) {
case mal_format_u8: return MAL_PA_SAMPLE_U8;
default: return MAL_PA_SAMPLE_INVALID;
}
}
@@ -11343,20 +11382,27 @@ mal_pa_sample_format_t mal_format_to_pulse(mal_format format)
mal_format mal_format_from_pulse(mal_pa_sample_format_t format)
{
switch (format)
{
case MAL_PA_SAMPLE_U8: return mal_format_u8;
case MAL_PA_SAMPLE_S16LE: return mal_format_s16;
//case MAL_PA_SAMPLE_S16BE: return mal_format_s16be;
case MAL_PA_SAMPLE_S24LE: return mal_format_s24;
//case MAL_PA_SAMPLE_S24BE: return mal_format_s24be;
//case MAL_PA_SAMPLE_S24_32LE: return mal_format_s24_32;
//case MAL_PA_SAMPLE_S24_32BE: return mal_format_s24_32be;
case MAL_PA_SAMPLE_S32LE: return mal_format_s32;
//case MAL_PA_SAMPLE_S32BE: return mal_format_s32be;
case MAL_PA_SAMPLE_FLOAT32LE: return mal_format_f32;
//case MAL_PA_SAMPLE_FLOAT32BE: return mal_format_f32be;
if (mal_is_little_endian()) {
switch (format) {
case MAL_PA_SAMPLE_S16LE: return mal_format_s16;
case MAL_PA_SAMPLE_S24LE: return mal_format_s24;
case MAL_PA_SAMPLE_S32LE: return mal_format_s32;
case MAL_PA_SAMPLE_FLOAT32LE: return mal_format_f32;
default: break;
}
} else {
switch (format) {
case MAL_PA_SAMPLE_S16BE: return mal_format_s16;
case MAL_PA_SAMPLE_S24BE: return mal_format_s24;
case MAL_PA_SAMPLE_S32BE: return mal_format_s32;
case MAL_PA_SAMPLE_FLOAT32BE: return mal_format_f32;
default: break;
}
}
// Endian agnostic.
switch (format) {
case MAL_PA_SAMPLE_U8: return mal_format_u8;
default: return mal_format_unknown;
}
}
@@ -13346,9 +13392,9 @@ mal_result mal_format_from_AudioStreamBasicDescription(const AudioStreamBasicDes
if ((pDescription->mFormatFlags & kLinearPCMFormatFlagIsAlignedHigh) != 0) {
return MAL_FORMAT_NOT_SUPPORTED;
}
// Big-endian formats are not currently supported, but will be added in a future version of mini_al.
if ((pDescription->mFormatFlags & kLinearPCMFormatFlagIsAlignedHigh) != 0) {
// Only supporting native-endian.
if ((mal_is_little_endian() && (pDescription->mFormatFlags & kAudioFormatFlagIsBigEndian) != 0) || (mal_is_big_endian() && (pDescription->mFormatFlags & kAudioFormatFlagIsBigEndian) == 0)) {
return MAL_FORMAT_NOT_SUPPORTED;
}
@@ -15952,7 +15998,15 @@ mal_format mal_format_from_encoding__audioio(unsigned int encoding, unsigned int
if (precision == 8 && (encoding == AUDIO_ENCODING_ULINEAR || encoding == AUDIO_ENCODING_ULINEAR || encoding == AUDIO_ENCODING_ULINEAR_LE || encoding == AUDIO_ENCODING_ULINEAR_BE)) {
return mal_format_u8;
} else {
if (encoding == AUDIO_ENCODING_SLINEAR_LE) {
if (mal_is_little_endian() && encoding == AUDIO_ENCODING_SLINEAR_LE) {
if (precision == 16) {
return mal_format_s16;
} else if (precision == 24) {
return mal_format_s24;
} else if (precision == 32) {
return mal_format_s32;
}
} else if (mal_is_big_endian() && encoding == AUDIO_ENCODING_SLINEAR_BE) {
if (precision == 16) {
return mal_format_s16;
} else if (precision == 24) {
@@ -16177,13 +16231,13 @@ mal_result mal_device_init__audioio(mal_context* pContext, mal_device_type devic
case mal_format_s24:
{
prinfo->encoding = AUDIO_ENCODING_SLINEAR_LE;
prinfo->encoding = (mal_is_little_endian()) ? AUDIO_ENCODING_SLINEAR_LE : AUDIO_ENCODING_SLINEAR_BE;
prinfo->precision = 24;
} break;
case mal_format_s32:
{
prinfo->encoding = AUDIO_ENCODING_SLINEAR_LE;
prinfo->encoding = (mal_is_little_endian()) ? AUDIO_ENCODING_SLINEAR_LE : AUDIO_ENCODING_SLINEAR_BE;
prinfo->precision = 32;
} break;
@@ -16191,7 +16245,7 @@ mal_result mal_device_init__audioio(mal_context* pContext, mal_device_type devic
case mal_format_f32:
default:
{
prinfo->encoding = AUDIO_ENCODING_SLINEAR_LE;
prinfo->encoding = (mal_is_little_endian()) ? AUDIO_ENCODING_SLINEAR_LE : AUDIO_ENCODING_SLINEAR_BE;
prinfo->precision = 16;
} break;
}
@@ -16573,10 +16627,10 @@ mal_result mal_context_get_device_info__oss(mal_context* pContext, mal_device_ty
if ((formatMask & AFMT_U8) != 0) {
pDeviceInfo->formats[pDeviceInfo->formatCount++] = mal_format_u8;
}
if ((formatMask & AFMT_S16_LE) != 0) {
if (((formatMask & AFMT_S16_LE) != 0 && mal_is_little_endian()) || (AFMT_S16_BE && mal_is_big_endian())) {
pDeviceInfo->formats[pDeviceInfo->formatCount++] = mal_format_s16;
}
if ((formatMask & AFMT_S32_LE) != 0) {
if (((formatMask & AFMT_S32_LE) != 0 && mal_is_little_endian()) || (AFMT_S32_BE && mal_is_big_endian())) {
pDeviceInfo->formats[pDeviceInfo->formatCount++] = mal_format_s32;
}
@@ -16630,10 +16684,10 @@ mal_result mal_device_init__oss(mal_context* pContext, mal_device_type type, con
// Format.
int ossFormat = AFMT_U8;
switch (pDevice->format) {
case mal_format_s16: ossFormat = AFMT_S16_LE; break;
case mal_format_s24: ossFormat = AFMT_S32_LE; break;
case mal_format_s32: ossFormat = AFMT_S32_LE; break;
case mal_format_f32: ossFormat = AFMT_S32_LE; break;
case mal_format_s16: ossFormat = (mal_is_little_endian()) ? AFMT_S16_LE : AFMT_S16_BE; break;
case mal_format_s24: ossFormat = (mal_is_little_endian()) ? AFMT_S32_LE : AFMT_S32_BE; break;
case mal_format_s32: ossFormat = (mal_is_little_endian()) ? AFMT_S32_LE : AFMT_S32_BE; break;
case mal_format_f32: ossFormat = (mal_is_little_endian()) ? AFMT_S32_LE : AFMT_S32_BE; break;
case mal_format_u8:
default: ossFormat = AFMT_U8; break;
}
@@ -16643,14 +16697,24 @@ mal_result mal_device_init__oss(mal_context* pContext, mal_device_type type, con
return mal_post_error(pDevice, MAL_LOG_LEVEL_ERROR, "[OSS] Failed to set format.", MAL_FORMAT_NOT_SUPPORTED);
}
switch (ossFormat) {
case AFMT_U8: pDevice->internalFormat = mal_format_u8; break;
case AFMT_S16_LE: pDevice->internalFormat = mal_format_s16; break;
case AFMT_S32_LE: pDevice->internalFormat = mal_format_s32; break;
default: mal_post_error(pDevice, MAL_LOG_LEVEL_ERROR, "[OSS] The device's internal format is not supported by mini_al.", MAL_FORMAT_NOT_SUPPORTED);
if (ossFormat == AFMT_U8) {
pDevice->internalFormat = mal_format_u8;
} else {
if (mal_is_little_endian()) {
switch (ossFormat) {
case AFMT_S16_LE: pDevice->internalFormat = mal_format_s16; break;
case AFMT_S32_LE: pDevice->internalFormat = mal_format_s32; break;
default: mal_post_error(pDevice, MAL_LOG_LEVEL_ERROR, "[OSS] The device's internal format is not supported by mini_al.", MAL_FORMAT_NOT_SUPPORTED);
}
} else {
switch (ossFormat) {
case AFMT_S16_BE: pDevice->internalFormat = mal_format_s16; break;
case AFMT_S32_BE: pDevice->internalFormat = mal_format_s32; break;
default: mal_post_error(pDevice, MAL_LOG_LEVEL_ERROR, "[OSS] The device's internal format is not supported by mini_al.", MAL_FORMAT_NOT_SUPPORTED);
}
}
}
// Channels.
int ossChannels = (int)pConfig->channels;
ossResult = ioctl(pDevice->oss.fd, SNDCTL_DSP_CHANNELS, &ossChannels);
@@ -17364,7 +17428,7 @@ mal_result mal_device_init__opensl(mal_context* pContext, mal_device_type type,
pFormat->bitsPerSample = mal_get_bytes_per_sample(pDevice->format)*8;
pFormat->containerSize = pFormat->bitsPerSample; // Always tightly packed for now.
pFormat->channelMask = mal_channel_map_to_channel_mask__opensl(pConfig->channelMap, pFormat->numChannels);
pFormat->endianness = SL_BYTEORDER_LITTLEENDIAN;
pFormat->endianness = (mal_is_little_endian()) ? SL_BYTEORDER_LITTLEENDIAN : SL_BYTEORDER_BIGENDIAN;
// Android has a few restrictions on the format as documented here: https://developer.android.com/ndk/guides/audio/opensl-for-android.html
// - Only mono and stereo is supported.
@@ -17417,7 +17481,8 @@ mal_result mal_device_init__opensl(mal_context* pContext, mal_device_type type,
// Set the output device.
if (pDeviceID != NULL) {
MAL_OPENSL_OUTPUTMIX(pDevice->opensl.pOutputMix)->ReRoute((SLOutputMixItf)pDevice->opensl.pOutputMix, 1, &pDeviceID->opensl);
SLuint32 deviceID_OpenSL = pDeviceID->opensl;
MAL_OPENSL_OUTPUTMIX(pDevice->opensl.pOutputMix)->ReRoute((SLOutputMixItf)pDevice->opensl.pOutputMix, 1, &deviceID_OpenSL);
}
SLDataSource source;