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hal: Configure backend with 24-bit for 24-bit playback 

- For 24bit stream backend is getting configured to
  32bit which is undesirable.
- To fix this, changes are done to configure backend
  as 24bit for 24bit stream and 32bit for 32bit stream.

Change-Id: If4186d2e476c745f584903edc02818eb0af6ee12
This commit is contained in:
Ramu Gottipati 2018-09-11 20:05:51 +05:30
parent cbd1905cea
commit 074fa4df34
2 changed files with 13 additions and 9 deletions
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11
hal/audio_extn/utils.c
View File

@ -704,13 +704,14 @@ void audio_extn_utils_update_stream_output_app_type_cfg(void *platform,
struct stream_format *sf_info;
char value[PROPERTY_VALUE_MAX] = {0};
if ((bit_width >= 24) &&
(devices & AUDIO_DEVICE_OUT_SPEAKER)) {
int32_t bw = platform_get_snd_device_bit_width(SND_DEVICE_OUT_SPEAKER);
if (-ENOSYS != bw)
if (devices & AUDIO_DEVICE_OUT_SPEAKER) {
int bw = platform_get_snd_device_bit_width(SND_DEVICE_OUT_SPEAKER);
if ((-ENOSYS != bw) && (bit_width > (uint32_t)bw))
bit_width = (uint32_t)bw;
else if (-ENOSYS == bw)
bit_width = CODEC_BACKEND_DEFAULT_BIT_WIDTH;
sample_rate = DEFAULT_OUTPUT_SAMPLING_RATE;
ALOGI("%s Allowing 24-bit playback on speaker ONLY at default sampling rate", __func__);
ALOGI("%s Allowing 24 and above bits playback on speaker ONLY at default sampling rate", __func__);
}
property_get("vendor.audio.playback.mch.downsample",value,"");

9
hal/msm8974/platform.c Executable file → Normal file
View File

@ -6267,11 +6267,14 @@ static bool platform_check_codec_backend_cfg(struct audio_device* adev,
* backend with speaker, and these devices are restricited to 48kHz.
*/
if (platform_check_backends_match(SND_DEVICE_OUT_SPEAKER, snd_device)) {
if (bit_width >= 24) {
bit_width = platform_get_snd_device_bit_width(SND_DEVICE_OUT_SPEAKER);
int bw = platform_get_snd_device_bit_width(SND_DEVICE_OUT_SPEAKER);
if ((-ENOSYS != bw) && (bit_width > (uint32_t)bw)) {
bit_width = (uint32_t)bw;
ALOGD("%s:becf: afe: reset bitwidth to %d (based on supported"
" value for this platform)", __func__, bit_width);
} else if (-ENOSYS == bw) {
bit_width = CODEC_BACKEND_DEFAULT_BIT_WIDTH;
ALOGD("%s:becf: afe: reset to default bitwidth %d", __func__, bit_width);
}
sample_rate = CODEC_BACKEND_DEFAULT_SAMPLE_RATE;
ALOGD("%s:becf: afe: playback on codec device not supporting native playback set "