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move sbc buffer to app

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This commit is contained in:
Milanka Ringwald 2017-04-04 15:45:33 +02:00
parent 659f0ea70b
commit ab07e0cd4a
3 changed files with 42 additions and 63 deletions
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8
src/classic/avdtp.c
View File

@ -190,14 +190,6 @@ avdtp_connection_t * avdtp_create_connection(bd_addr_t remote_addr, avdtp_contex
return connection;
}
void avdtp_init_sbc_buffer(avdtp_stream_endpoint_t * stream_endpoint, uint8_t * storage, int storage_size){
if (!stream_endpoint){
printf("cannot init audio buffer, no stream_endpoint\n");
return;
}
btstack_ring_buffer_init(&stream_endpoint->sbc_ring_buffer, storage, storage_size);
}
avdtp_stream_endpoint_t * avdtp_create_stream_endpoint(avdtp_sep_type_t sep_type, avdtp_media_type_t media_type, avdtp_context_t * context){
avdtp_stream_endpoint_t * stream_endpoint = btstack_memory_avdtp_stream_endpoint_get();
memset(stream_endpoint, 0, sizeof(avdtp_stream_endpoint_t));

2
src/classic/avdtp.h
View File

@ -452,7 +452,6 @@ typedef struct avdtp_stream_endpoint {
// to app
btstack_sbc_encoder_state_t sbc_encoder_state;
btstack_ring_buffer_t sbc_ring_buffer;
} avdtp_stream_endpoint_t;
typedef struct {
@ -491,7 +490,6 @@ void avdtp_set_configuration(uint16_t con_handle, uint8_t int_seid, uint8_t acp_
void avdtp_reconfigure(uint16_t con_handle, uint8_t acp_seid, uint16_t configured_services_bitmap, avdtp_capabilities_t configuration, avdtp_context_t * context);
void avdtp_suspend(uint16_t con_handle, uint8_t acp_seid, avdtp_context_t * context);
void avdtp_init_sbc_buffer(avdtp_stream_endpoint_t * stream_endpoint, uint8_t * storage, int storage_size);
#if defined __cplusplus
}
#endif

95
test/avdtp/avdtp_source_demo.c
View File

@ -59,6 +59,32 @@
#include "btstack_sbc.h"
#include "avdtp_util.h"
#define NUM_CHANNELS 2
#define SAMPLE_RATE 44100
#define BYTES_PER_AUDIO_SAMPLE (2*NUM_CHANNELS)
#define LATENCY 300 // ms
#ifndef M_PI
#define M_PI 3.14159265
#endif
#define TABLE_SIZE_441HZ 100
typedef struct {
int16_t source[TABLE_SIZE_441HZ];
int left_phase;
int right_phase;
} paTestData;
typedef struct {
// to app
uint32_t fill_audio_ring_buffer_timeout_ms;
btstack_ring_buffer_t audio_ring_buffer;
uint32_t time_audio_data_sent; // ms
uint32_t acc_num_missed_samples;
btstack_timer_source_t fill_audio_ring_buffer_timer;
btstack_ring_buffer_t sbc_ring_buffer;
} avdtp_stream_endpoint_context_t;
typedef struct {
// bitmaps
uint8_t sampling_frequency_bitmap;
@ -113,6 +139,11 @@ static avdtp_sep_t * active_remote_sep = NULL;
static uint8_t media_sbc_codec_configuration[4];
static uint8_t audio_samples_storage[44100*4]; // 1s buffer
static uint8_t sbc_samples_storage[44100*4];
static avdtp_stream_endpoint_context_t streaming_context;
static paTestData sin_data;
static const char * avdtp_si_name[] = {
"ERROR",
"AVDTP_SI_DISCOVER",
@ -451,49 +482,12 @@ static uint8_t media_sbc_codec_capabilities[] = {
2, 53
};
// static const uint8_t media_sbc_codec_reconfiguration[] = {
// (AVDTP_SBC_44100 << 4) | AVDTP_SBC_STEREO,
// (AVDTP_SBC_BLOCK_LENGTH_16 << 4) | (AVDTP_SBC_SUBBANDS_8 << 2) | AVDTP_SBC_ALLOCATION_METHOD_SNR,
// 2, 53
// };
#define NUM_CHANNELS 2
#define SAMPLE_RATE 44100
#define BYTES_PER_AUDIO_SAMPLE (2*NUM_CHANNELS)
#define LATENCY 300 // ms
#ifndef M_PI
#define M_PI 3.14159265
#endif
#define TABLE_SIZE_441HZ 100
static uint8_t audio_samples_storage[44100*4]; // 1s buffer
static uint8_t sbc_samples_storage[44100*4];
typedef struct {
int16_t source[TABLE_SIZE_441HZ];
int left_phase;
int right_phase;
} paTestData;
typedef struct {
// to app
uint32_t fill_audio_ring_buffer_timeout_ms;
btstack_ring_buffer_t audio_ring_buffer;
uint32_t time_audio_data_sent; // ms
uint32_t acc_num_missed_samples;
btstack_timer_source_t fill_audio_ring_buffer_timer;
} avdtp_stream_endpoint_context_t;
static paTestData sin_data;
static avdtp_stream_endpoint_context_t streaming_context;
static void fill_sbc_ring_buffer(uint8_t * sbc_frame, int sbc_frame_size, avdtp_stream_endpoint_t * stream_endpoint){
if (btstack_ring_buffer_bytes_free(&stream_endpoint->sbc_ring_buffer) >= sbc_frame_size ){
static void fill_sbc_ring_buffer(uint8_t * sbc_frame, int sbc_frame_size, avdtp_stream_endpoint_context_t * context){
if (btstack_ring_buffer_bytes_free(&context->sbc_ring_buffer) >= sbc_frame_size ){
// printf(" fill_sbc_ring_buffer\n");
uint8_t size_buffer = sbc_frame_size;
btstack_ring_buffer_write(&stream_endpoint->sbc_ring_buffer, &size_buffer, 1);
btstack_ring_buffer_write(&stream_endpoint->sbc_ring_buffer, sbc_frame, sbc_frame_size);
btstack_ring_buffer_write(&context->sbc_ring_buffer, &size_buffer, 1);
btstack_ring_buffer_write(&context->sbc_ring_buffer, sbc_frame, sbc_frame_size);
} else {
printf("No space in sbc buffer\n");
}
@ -505,12 +499,8 @@ static void avdtp_source_stream_endpoint_run(avdtp_stream_endpoint_t * stream_en
int num_audio_samples_to_read = btstack_sbc_encoder_num_audio_frames();
int audio_bytes_to_read = num_audio_samples_to_read * BYTES_PER_AUDIO_SAMPLE;
// printf("run: audio_bytes_to_read: %d\n", audio_bytes_to_read);
// printf(" audio buf, bytes available: %d\n", btstack_ring_buffer_bytes_available(&streaming_context.audio_ring_buffer));
// printf(" sbc buf, bytes free: %d\n", btstack_ring_buffer_bytes_free(&stream_endpoint->sbc_ring_buffer));
while (btstack_ring_buffer_bytes_available(&streaming_context.audio_ring_buffer) >= audio_bytes_to_read
&& btstack_ring_buffer_bytes_free(&stream_endpoint->sbc_ring_buffer) >= 120){ // TODO use real value
&& btstack_ring_buffer_bytes_free(&streaming_context.sbc_ring_buffer) >= 120){ // TODO use real value
uint32_t number_of_bytes_read = 0;
uint8_t pcm_frame[256*BYTES_PER_AUDIO_SAMPLE];
@ -521,7 +511,7 @@ static void avdtp_source_stream_endpoint_run(avdtp_stream_endpoint_t * stream_en
uint16_t sbc_frame_bytes = 119; //btstack_sbc_encoder_sbc_buffer_length();
total_num_bytes_read += number_of_bytes_read;
fill_sbc_ring_buffer(btstack_sbc_encoder_sbc_buffer(), sbc_frame_bytes, stream_endpoint);
fill_sbc_ring_buffer(btstack_sbc_encoder_sbc_buffer(), sbc_frame_bytes, &streaming_context);
}
// schedule sending
if (total_num_bytes_read != 0){
@ -659,10 +649,10 @@ static void send_media_packet_now(avdtp_stream_endpoint_t * stream_endpoint){
uint32_t total_sbc_bytes_read = 0;
uint8_t sbc_frame_size = 0;
// payload
while (mtu - 13 - total_sbc_bytes_read >= 120 && btstack_ring_buffer_bytes_available(&stream_endpoint->sbc_ring_buffer)){
while (mtu - 13 - total_sbc_bytes_read >= 120 && btstack_ring_buffer_bytes_available(&streaming_context.sbc_ring_buffer)){
uint32_t number_of_bytes_read = 0;
btstack_ring_buffer_read(&stream_endpoint->sbc_ring_buffer, &sbc_frame_size, 1, &number_of_bytes_read);
btstack_ring_buffer_read(&stream_endpoint->sbc_ring_buffer, media_packet + pos, sbc_frame_size, &number_of_bytes_read);
btstack_ring_buffer_read(&streaming_context.sbc_ring_buffer, &sbc_frame_size, 1, &number_of_bytes_read);
btstack_ring_buffer_read(&streaming_context.sbc_ring_buffer, media_packet + pos, sbc_frame_size, &number_of_bytes_read);
pos += sbc_frame_size;
total_sbc_bytes_read += sbc_frame_size;
num_frames++;
@ -671,7 +661,7 @@ static void send_media_packet_now(avdtp_stream_endpoint_t * stream_endpoint){
media_packet[sbc_header_index] = (fragmentation << 7) | (starting_packet << 6) | (last_packet << 5) | num_frames;
stream_endpoint->sequence_number++;
l2cap_send(stream_endpoint->l2cap_media_cid, media_packet, pos);
if (btstack_ring_buffer_bytes_available(&stream_endpoint->sbc_ring_buffer)){
if (btstack_ring_buffer_bytes_available(&streaming_context.sbc_ring_buffer)){
stream_endpoint->state = AVDTP_STREAM_ENDPOINT_STREAMING_W2_SEND;
l2cap_request_can_send_now_event(stream_endpoint->l2cap_media_cid);
}
@ -781,9 +771,8 @@ int btstack_main(int argc, const char * argv[]){
memset(audio_samples_storage, 0, sizeof(audio_samples_storage));
memset(sbc_samples_storage, 0, sizeof(sbc_samples_storage));
avdtp_init_sbc_buffer(local_stream_endpoint, sbc_samples_storage, sizeof(sbc_samples_storage));
btstack_ring_buffer_init(&streaming_context.audio_ring_buffer, audio_samples_storage, sizeof(audio_samples_storage));
btstack_ring_buffer_init(&streaming_context.sbc_ring_buffer, sbc_samples_storage, sizeof(sbc_samples_storage));
streaming_context.fill_audio_ring_buffer_timeout_ms = 50;
/* initialise sinusoidal wavetable */