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-rw-r--r--include/uapi/sound/compress_params.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/include/uapi/sound/compress_params.h b/include/uapi/sound/compress_params.h
index 602dc6c45d1a..165e7059de75 100644
--- a/include/uapi/sound/compress_params.h
+++ b/include/uapi/sound/compress_params.h
@@ -57,6 +57,7 @@
#define MAX_NUM_CODECS 32
#define MAX_NUM_CODEC_DESCRIPTORS 32
#define MAX_NUM_BITRATES 32
+#define MAX_NUM_SAMPLE_RATES 32
/* Codecs are listed linearly to allow for extensibility */
#define SND_AUDIOCODEC_PCM ((__u32) 0x00000001)
@@ -324,7 +325,8 @@ union snd_codec_options {
/** struct snd_codec_desc - description of codec capabilities
* @max_ch: Maximum number of audio channels
- * @sample_rates: Sampling rates in Hz, use SNDRV_PCM_RATE_xxx for this
+ * @sample_rates: Sampling rates in Hz, use values like 48000 for this
+ * @num_sample_rates: Number of valid values in sample_rates array
* @bit_rate: Indexed array containing supported bit rates
* @num_bitrates: Number of valid values in bit_rate array
* @rate_control: value is specified by SND_RATECONTROLMODE defines.
@@ -346,7 +348,8 @@ union snd_codec_options {
struct snd_codec_desc {
__u32 max_ch;
- __u32 sample_rates;
+ __u32 sample_rates[MAX_NUM_SAMPLE_RATES];
+ __u32 num_sample_rates;
__u32 bit_rate[MAX_NUM_BITRATES];
__u32 num_bitrates;
__u32 rate_control;
@@ -364,7 +367,8 @@ struct snd_codec_desc {
* @ch_out: Number of output channels. In case of contradiction between
* this field and the channelMode field, the channelMode field
* overrides.
- * @sample_rate: Audio sample rate of input data
+ * @sample_rate: Audio sample rate of input data in Hz, use values like 48000
+ * for this.
* @bit_rate: Bitrate of encoded data. May be ignored by decoders
* @rate_control: Encoding rate control. See SND_RATECONTROLMODE defines.
* Encoders may rely on profiles for quality levels.