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enum sndrv_pcm_format
{
SNDRV_PCM_FORMAT_S8 = 0,
SNDRV_PCM_FORMAT_U8,
SNDRV_PCM_FORMAT_S16_LE,
SNDRV_PCM_FORMAT_S16_BE,
SNDRV_PCM_FORMAT_U16_LE,
SNDRV_PCM_FORMAT_U16_BE,
SNDRV_PCM_FORMAT_S24_LE, /* low three bytes */
SNDRV_PCM_FORMAT_S24_BE, /* low three bytes */
SNDRV_PCM_FORMAT_U24_LE, /* low three bytes */
SNDRV_PCM_FORMAT_U24_BE, /* low three bytes */
SNDRV_PCM_FORMAT_S32_LE,
SNDRV_PCM_FORMAT_S32_BE,
SNDRV_PCM_FORMAT_U32_LE,
SNDRV_PCM_FORMAT_U32_BE,
SNDRV_PCM_FORMAT_FLOAT_LE, /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */
SNDRV_PCM_FORMAT_FLOAT_BE, /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */
SNDRV_PCM_FORMAT_FLOAT64_LE, /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */
SNDRV_PCM_FORMAT_FLOAT64_BE, /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */
SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE, /* IEC-958 subframe, Little Endian */
SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE, /* IEC-958 subframe, Big Endian */
SNDRV_PCM_FORMAT_MU_LAW,
SNDRV_PCM_FORMAT_A_LAW,
SNDRV_PCM_FORMAT_IMA_ADPCM,
SNDRV_PCM_FORMAT_MPEG,
SNDRV_PCM_FORMAT_GSM,
SNDRV_PCM_FORMAT_SPECIAL = 31,
SNDRV_PCM_FORMAT_S24_3LE = 32, /* in three bytes */
SNDRV_PCM_FORMAT_S24_3BE, /* in three bytes */
SNDRV_PCM_FORMAT_U24_3LE, /* in three bytes */
SNDRV_PCM_FORMAT_U24_3BE, /* in three bytes */
SNDRV_PCM_FORMAT_S20_3LE, /* in three bytes */
SNDRV_PCM_FORMAT_S20_3BE, /* in three bytes */
SNDRV_PCM_FORMAT_U20_3LE, /* in three bytes */
SNDRV_PCM_FORMAT_U20_3BE, /* in three bytes */
SNDRV_PCM_FORMAT_S18_3LE, /* in three bytes */
SNDRV_PCM_FORMAT_S18_3BE, /* in three bytes */
SNDRV_PCM_FORMAT_U18_3LE, /* in three bytes */
SNDRV_PCM_FORMAT_U18_3BE, /* in three bytes */
SNDRV_PCM_FORMAT_LAST = SNDRV_PCM_FORMAT_U18_3BE,
#ifdef SNDRV_LITTLE_ENDIAN
SNDRV_PCM_FORMAT_S16 = SNDRV_PCM_FORMAT_S16_LE,
SNDRV_PCM_FORMAT_U16 = SNDRV_PCM_FORMAT_U16_LE,
SNDRV_PCM_FORMAT_S24 = SNDRV_PCM_FORMAT_S24_LE,
SNDRV_PCM_FORMAT_U24 = SNDRV_PCM_FORMAT_U24_LE,
SNDRV_PCM_FORMAT_S32 = SNDRV_PCM_FORMAT_S32_LE,
SNDRV_PCM_FORMAT_U32 = SNDRV_PCM_FORMAT_U32_LE,
SNDRV_PCM_FORMAT_FLOAT = SNDRV_PCM_FORMAT_FLOAT_LE,
SNDRV_PCM_FORMAT_FLOAT64 = SNDRV_PCM_FORMAT_FLOAT64_LE,
SNDRV_PCM_FORMAT_IEC958_SUBFRAME = SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE,
#endif
#ifdef SNDRV_BIG_ENDIAN
SNDRV_PCM_FORMAT_S16 = SNDRV_PCM_FORMAT_S16_BE,
SNDRV_PCM_FORMAT_U16 = SNDRV_PCM_FORMAT_U16_BE,
SNDRV_PCM_FORMAT_S24 = SNDRV_PCM_FORMAT_S24_BE,
SNDRV_PCM_FORMAT_U24 = SNDRV_PCM_FORMAT_U24_BE,
SNDRV_PCM_FORMAT_S32 = SNDRV_PCM_FORMAT_S32_BE,
SNDRV_PCM_FORMAT_U32 = SNDRV_PCM_FORMAT_U32_BE,
SNDRV_PCM_FORMAT_FLOAT = SNDRV_PCM_FORMAT_FLOAT_BE,
SNDRV_PCM_FORMAT_FLOAT64 = SNDRV_PCM_FORMAT_FLOAT64_BE,
SNDRV_PCM_FORMAT_IEC958_SUBFRAME = SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE,
#endif
};
#define FORMAT(v) [SND_PCM_FORMAT_##v] = #v
static const char *snd_pcm_format_names[] = {
FORMAT (S8),
FORMAT (U8),
FORMAT (S16_LE),
FORMAT (S16_BE),
FORMAT (U16_LE),
FORMAT (U16_BE),
FORMAT (S24_LE),
FORMAT (S24_BE),
FORMAT (U24_LE),
FORMAT (U24_BE),
FORMAT (S32_LE),
FORMAT (S32_BE),
FORMAT (U32_LE),
FORMAT (U32_BE),
FORMAT (FLOAT_LE),
FORMAT (FLOAT_BE),
FORMAT (FLOAT64_LE),
FORMAT (FLOAT64_BE),
FORMAT (IEC958_SUBFRAME_LE),
FORMAT (IEC958_SUBFRAME_BE),
FORMAT (MU_LAW),
FORMAT (A_LAW),
FORMAT (IMA_ADPCM),
FORMAT (MPEG),
FORMAT (GSM),
FORMAT (SPECIAL),
FORMAT (S24_3LE),
FORMAT (S24_3BE),
FORMAT (U24_3LE),
FORMAT (U24_3BE),
FORMAT (S20_3LE),
FORMAT (S20_3BE),
FORMAT (U20_3LE),
FORMAT (U20_3BE),
FORMAT (S18_3LE),
FORMAT (S18_3BE),
FORMAT (U18_3LE),
FORMAT (U18_3BE),
};
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