mirror of
https://github.com/bluekitchen/btstack.git
synced 2025-01-09 06:46:36 +00:00
747ec64600
a2dp: introduce context, move common code to avdtp.c a2dp: wrap source functionality a2dp: enable packet handler a2dp: draft implemetation source open stream avrcp: add streaming connection opened/released events avdtp source: introduce timer for storing audio data at const fr., encode into sbc, and prepare for sending wav_util: fix return of wav_reader_read_int16 sbc: rename sbc to msbc test sbc: improve usage output sbc: fix makefile sbc: remove hardcoded bitrate avdtp: add encode/decode sine example without using ring buffer avdtp: move ring buffer to stream endpoint avdtp: add encode/decode test with ring buffer sbc: use btstack_sbc_encoder_num_audio_frames - 1 audio frame contains 1 audio sample for mono and 2 for stereo sbc: use btstack_sbc_encoder_num_audio_frames - 1 audio frame contains 1 audio sample for mono and 2 for stereo sbc: revert sample counting avdtp: source sending correct audio first time avdtp: shorter timer for audio generation gets correct stream avdtp: set state to AVDTP_STREAM_ENDPOINT_STREAMING_W2_SEND when more data is ready avdtp: introduce transport category as mandatory avdtp: introduce transport category as mandatory
104 lines
3.4 KiB
C
104 lines
3.4 KiB
C
/*
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* Copyright (C) 2014 BlueKitchen GmbH
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holders nor the names of
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* 4. Any redistribution, use, or modification is done solely for
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* personal benefit and not for any commercial purpose or for
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* monetary gain.
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*
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* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
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* RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Please inquire about commercial licensing options at
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* contact@bluekitchen-gmbh.com
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*
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*/
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// *****************************************************************************
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//
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// SBC encoder tests
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//
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// *****************************************************************************
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#include "btstack_config.h"
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include "btstack.h"
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#include "hfp_msbc.h"
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#include "btstack_sbc.h"
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#include "wav_util.h"
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static int16_t read_buffer[8*16*2];
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static uint8_t output_buffer[24];
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int main (int argc, const char * argv[]){
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if (argc < 3){
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printf("Usage: %s WAV_FILE mSBC_FILE\n", argv[0]);
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return -1;
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}
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const char * wav_filename = argv[1];
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const char * sbc_filename = argv[2];
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if (wav_reader_open(wav_filename) != 0) {
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printf("Can't open file %s", wav_filename);
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return -1;
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}
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FILE * sbc_fd = fopen(sbc_filename, "wb");
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if (!sbc_fd) {
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printf("Can't open file %s", sbc_filename);
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return -1;
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}
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hfp_msbc_init();
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int num_samples = hfp_msbc_num_audio_samples_per_frame();
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while (1){
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if (hfp_msbc_can_encode_audio_frame_now()){
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int error = wav_reader_read_int16(num_samples, read_buffer);
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if (error) break;
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hfp_msbc_encode_audio_frame(read_buffer);
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}
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if (hfp_msbc_num_bytes_in_stream() >= sizeof(output_buffer)){
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hfp_msbc_read_from_stream(output_buffer, sizeof(output_buffer));
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fwrite(output_buffer, 1, sizeof(output_buffer), sbc_fd);
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}
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}
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printf("Done\n");
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wav_reader_close();
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fclose(sbc_fd);
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return 0;
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}
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