Crash_Override/OVMS3-idf
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

component/bt: allow dynamic allocation of SBC decoder buffer used in A2DP sink to save internal DRAM

Browse source
This commit is contained in:
wangmengyang 2019-02-13 20:36:51 +08:00 committed by bot
parent 9be6f0c0a6
commit 592a2e52ab
1 changed files with 44 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

52
components/bt/bluedroid/btc/profile/std/a2dp/btc_media_task.c
View file

@ -63,9 +63,13 @@
#if BTC_AV_INCLUDED
// #if (BTA_AV_SINK_INCLUDED == TRUE)
OI_CODEC_SBC_DECODER_CONTEXT context;
OI_UINT32 contextData[CODEC_DATA_WORDS(2, SBC_CODEC_FAST_FILTER_BUFFERS)];
OI_INT16 pcmData[15 * SBC_MAX_SAMPLES_PER_FRAME * SBC_MAX_CHANNELS];
#define BTC_SBC_DEC_CONTEXT_DATA_LEN (CODEC_DATA_WORDS(2, SBC_CODEC_FAST_FILTER_BUFFERS))
#define BTC_SBC_DEC_PCM_DATA_LEN (15 * SBC_MAX_SAMPLES_PER_FRAME * SBC_MAX_CHANNELS)
static OI_CODEC_SBC_DECODER_CONTEXT *btc_sbc_decoder_context_ptr;
static OI_UINT32 *btc_sbc_decoder_context_data;
static OI_INT16 *btc_sbc_pcm_data;
#define btc_sbc_decoder_context (*btc_sbc_decoder_context_ptr)
// #endif
/*****************************************************************************
@ -273,6 +277,14 @@ bool btc_a2dp_start_media_task(void)
return false;
}
btc_sbc_decoder_context_ptr = osi_calloc(sizeof(OI_CODEC_SBC_DECODER_CONTEXT));
btc_sbc_decoder_context_data = osi_calloc(BTC_SBC_DEC_CONTEXT_DATA_LEN * sizeof(OI_UINT32));
btc_sbc_pcm_data = osi_calloc(BTC_SBC_DEC_PCM_DATA_LEN * sizeof(OI_INT16));
if (!btc_sbc_decoder_context_ptr || !btc_sbc_decoder_context_data || !btc_sbc_pcm_data) {
APPL_TRACE_ERROR("failed to allocate SBC decoder");
goto error_exit;
}
APPL_TRACE_EVENT("## A2DP START MEDIA THREAD ##");
xBtcMediaQueueSet = xQueueCreateSet(BTC_A2DP_SINK_TASK_QUEUE_SET_LEN);
@ -329,6 +341,20 @@ error_exit:;
fixed_queue_free(btc_media_cmd_msg_queue, NULL);
btc_media_cmd_msg_queue = NULL;
if (btc_sbc_decoder_context_ptr) {
osi_free(btc_sbc_decoder_context_ptr);
btc_sbc_decoder_context_ptr = NULL;
}
if (btc_sbc_decoder_context_data) {
osi_free(btc_sbc_decoder_context_data);
btc_sbc_decoder_context_data = NULL;
}
if (btc_sbc_pcm_data) {
osi_free(btc_sbc_pcm_data);
btc_sbc_pcm_data = NULL;
}
return false;
}
@ -358,6 +384,15 @@ void btc_a2dp_stop_media_task(void)
fixed_queue_free(btc_media_cmd_msg_queue, NULL);
btc_media_cmd_msg_queue = NULL;
osi_free(btc_sbc_decoder_context_ptr);
btc_sbc_decoder_context_ptr = NULL;
osi_free(btc_sbc_decoder_context_data);
btc_sbc_decoder_context_data = NULL;
osi_free(btc_sbc_pcm_data);
btc_sbc_pcm_data = NULL;
}
/*****************************************************************************
@ -637,11 +672,11 @@ static void btc_media_task_handle_inc_media(tBT_SBC_HDR *p_msg)
UINT8 *sbc_start_frame = ((UINT8 *)(p_msg + 1) + p_msg->offset + 1);
int count;
UINT32 pcmBytes, availPcmBytes;
OI_INT16 *pcmDataPointer = pcmData; /*Will be overwritten on next packet receipt*/
OI_INT16 *pcmDataPointer = btc_sbc_pcm_data; /*Will be overwritten on next packet receipt*/
OI_STATUS status;
int num_sbc_frames = p_msg->num_frames_to_be_processed;
UINT32 sbc_frame_len = p_msg->len - 1;
availPcmBytes = sizeof(pcmData);
availPcmBytes = BTC_SBC_DEC_PCM_DATA_LEN * sizeof(OI_INT16);
if ((btc_media_cb.peer_sep == AVDT_TSEP_SNK) || (btc_media_cb.rx_flush)) {
APPL_TRACE_DEBUG(" State Changed happened in this tick ");
@ -657,7 +692,7 @@ static void btc_media_task_handle_inc_media(tBT_SBC_HDR *p_msg)
for (count = 0; count < num_sbc_frames && sbc_frame_len != 0; count ++) {
pcmBytes = availPcmBytes;
status = OI_CODEC_SBC_DecodeFrame(&context, (const OI_BYTE **)&sbc_start_frame,
status = OI_CODEC_SBC_DecodeFrame(&btc_sbc_decoder_context, (const OI_BYTE **)&sbc_start_frame,
(OI_UINT32 *)&sbc_frame_len,
(OI_INT16 *)pcmDataPointer,
(OI_UINT32 *)&pcmBytes);
@ -671,7 +706,7 @@ static void btc_media_task_handle_inc_media(tBT_SBC_HDR *p_msg)
p_msg->len = sbc_frame_len + 1;
}
btc_a2d_data_cb_to_app((uint8_t *)pcmData, (sizeof(pcmData) - availPcmBytes));
btc_a2d_data_cb_to_app((uint8_t *)btc_sbc_pcm_data, (BTC_SBC_DEC_PCM_DATA_LEN * sizeof(OI_INT16) - availPcmBytes));
}
/*******************************************************************************
@ -799,7 +834,8 @@ static void btc_media_task_aa_handle_decoder_reset(BT_HDR *p_msg)
btc_media_cb.rx_flush = FALSE;
APPL_TRACE_EVENT("Reset to sink role");
status = OI_CODEC_SBC_DecoderReset(&context, contextData, sizeof(contextData), 2, 2, FALSE);
status = OI_CODEC_SBC_DecoderReset(&btc_sbc_decoder_context, btc_sbc_decoder_context_data,
BTC_SBC_DEC_CONTEXT_DATA_LEN * sizeof(OI_UINT32), 2, 2, FALSE);
if (!OI_SUCCESS(status)) {
APPL_TRACE_ERROR("OI_CODEC_SBC_DecoderReset failed with error code %d\n", status);
}