mirror/btstack
1
0
Fork 0
mirror of https://github.com/bluekitchen/btstack.git synced 2025-03-12 10:13:43 +00:00
Code Issues Packages Projects Releases Wiki Activity

sbc decoder test: add handle pcm callback

Browse Source
This commit is contained in:
Milanka Ringwald 2016-06-30 16:32:23 +02:00
parent 091c1bfd0a
commit 082d19a82b
1 changed files with 38 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

63
test/sbc/sbc_decoder_test.c
View File

@ -62,12 +62,19 @@ static uint8_t buf[4];
static OI_UINT32 decoderData[10000];
static OI_CODEC_SBC_DECODER_CONTEXT context;
typedef struct wav_writer_state {
FILE * wav_file;
int sample_rate;
int total_num_samples;
} wav_writer_state_t;
typedef struct {
OI_UINT32 bytesRead;
OI_UINT32 frameBytes;
OI_UINT32 inputBufferBytes;
int frame_count;
const OI_BYTE *frameData;
void * context;
void (*handle_pcm_data)(int16_t * data, int num_samples, int num_channels, int sample_rate, void * context);
} sbc_state_t;
static sbc_state_t state;
@ -117,16 +124,12 @@ void little_endian_fstore_32(FILE *wav_file, uint32_t value){
}
static void write_wav_header(FILE * wav_file, OI_CODEC_SBC_DECODER_CONTEXT * decoderContext, int frame_count){
static void write_wav_header(FILE * wav_file, int total_num_samples, int num_channels, int sample_rate){
unsigned int bytes_per_sample = 2;
int num_samples = decoderContext->common.frameInfo.nrof_blocks * decoderContext->common.frameInfo.nrof_subbands;
int num_channels = decoderContext->common.frameInfo.nrof_channels;
int sample_rate = decoderContext->common.frameInfo.frequency;
/* write RIFF header */
fwrite("RIFF", 1, 4, wav_file);
// num_samples = blocks * subbands
uint32_t data_bytes = (uint32_t) (bytes_per_sample * num_samples * frame_count * num_channels);
uint32_t data_bytes = (uint32_t) (bytes_per_sample * total_num_samples * num_channels);
little_endian_fstore_32(wav_file, data_bytes + 36);
fwrite("WAVE", 1, 4, wav_file);
@ -151,9 +154,7 @@ static void write_wav_header(FILE * wav_file, OI_CODEC_SBC_DECODER_CONTEXT * dec
little_endian_fstore_32(wav_file, data_bytes);
}
static void write_wav_data(FILE * wav_file, OI_CODEC_SBC_DECODER_CONTEXT * decoderContext, int16_t * data){
int num_samples = decoderContext->common.frameInfo.nrof_blocks * decoderContext->common.frameInfo.nrof_subbands;
int num_channels = decoderContext->common.frameInfo.nrof_channels;
static void write_wav_data(FILE * wav_file, int num_samples, int num_channels, int16_t * data){
int i;
for (i=0; i < num_samples; i++){
little_endian_fstore_16(wav_file, (uint16_t)data[i]);
@ -163,12 +164,19 @@ static void write_wav_data(FILE * wav_file, OI_CODEC_SBC_DECODER_CONTEXT * decod
}
}
static void init_sbc_state(sbc_state_t * state){
static void handle_pcm_data(int16_t * data, int num_samples, int num_channels, int sample_rate, void * context){
wav_writer_state_t * wav_writer_state = (wav_writer_state_t*) context;
write_wav_data(wav_writer_state->wav_file, num_samples, num_channels, data);
wav_writer_state->total_num_samples+=num_samples;
}
static void init_sbc_state(sbc_state_t * state, void (*callback)(int16_t * data, int num_samples, int num_channels, int sample_rate, void * context), void * context){
state->frameBytes = 0;
state->bytesRead = 0;
state->frame_count = 0;
state->inputBufferBytes = 0;
state->frameData = NULL;
state->handle_pcm_data = callback;
state->context = context;
}
static void append_received_sbc_data(sbc_state_t * state, uint8_t * buffer, int size){
@ -198,18 +206,16 @@ static void handle_received_sbc_data(sbc_state_t * state, uint8_t * buffer, int
printf("Frame decode error %d\n", status);
break;
}
printf("Not enough data, read next %u bytes, move %d bytes\n", state->bytesRead-state->frameBytes, state->frameBytes);
// printf("Not enough data, read next %u bytes, move %d bytes\n", state->bytesRead-state->frameBytes, state->frameBytes);
memmove(frame_buffer, frame_buffer + state->bytesRead - state->frameBytes, state->frameBytes);
break;
}
if (state->frame_count == 0){
write_wav_header(wav_file, &context, 0);
}
write_wav_data(wav_file, &context, pcmData);
state->frame_count++;
int num_samples = context.common.frameInfo.nrof_blocks * context.common.frameInfo.nrof_subbands;
int num_channels = context.common.frameInfo.nrof_channels;
int sample_rate = context.common.frameInfo.frequency;
state->handle_pcm_data(pcmData, num_samples, num_channels, sample_rate, state->context);
}
}
@ -240,8 +246,11 @@ int main (int argc, const char * argv[]){
}
FILE * wav_file = fopen(wav_filename, "wb");
init_sbc_state(&state);
wav_writer_state_t wav_writer_state;
wav_writer_state.wav_file = wav_file;
init_sbc_state(&state, &handle_pcm_data, (void*)&wav_writer_state);
write_wav_header(wav_writer_state.wav_file, 0, 0, 0);
while (1){
int bytes_read = __read(fd, read_buffer, sizeof(read_buffer));
@ -257,10 +266,14 @@ int main (int argc, const char * argv[]){
}
rewind(wav_file);
write_wav_header(wav_file, &context, state.frame_count);
int num_channels = context.common.frameInfo.nrof_channels;
int sample_rate = context.common.frameInfo.frequency;
write_wav_header(wav_writer_state.wav_file, wav_writer_state.total_num_samples, num_channels, sample_rate);
fclose(wav_file);
printf("Write %d frames to wav file: %s\n", state.frame_count, wav_filename);
close(fd);
int frame_count = wav_writer_state.total_num_samples/(context.common.frameInfo.nrof_blocks * context.common.frameInfo.nrof_subbands);
printf("Write %d frames to wav file: %s\n", frame_count, wav_filename);
}