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@@ -86,7 +86,8 @@ enum {
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layers we might need to temporarily buffer up data */
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/* 18 frames is equivalent to 6.89*18*2.9 ~= 360 ms @ 44.1 khz, 20 ms mediatick */
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-#define MAX_OUTPUT_A2DP_SNK_FRAME_QUEUE_SZ (18)
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+#define JITTER_BUFFER_WATER_LEVEL (15)
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+#define MAX_OUTPUT_A2DP_SNK_FRAME_QUEUE_SZ (18 + JITTER_BUFFER_WATER_LEVEL)
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typedef struct {
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uint32_t sig;
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@@ -670,6 +671,11 @@ UINT8 btc_a2dp_sink_enque_buf(BT_HDR *p_pkt)
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p_msg->num_frames_to_be_processed = (*((UINT8 *)(p_msg + 1) + p_msg->offset)) & 0x0f;
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APPL_TRACE_VERBOSE("btc_a2dp_sink_enque_buf %d + \n", p_msg->num_frames_to_be_processed);
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fixed_queue_enqueue(a2dp_sink_local_param.btc_aa_snk_cb.RxSbcQ, p_msg, FIXED_QUEUE_MAX_TIMEOUT);
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+
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+ if (fixed_queue_length(a2dp_sink_local_param.btc_aa_snk_cb.RxSbcQ) < JITTER_BUFFER_WATER_LEVEL) {
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+ return fixed_queue_length(a2dp_sink_local_param.btc_aa_snk_cb.RxSbcQ);
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+ }
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+
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btc_a2dp_sink_data_post();
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} else {
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/* let caller deal with a failed allocation */
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weitianhua