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fix non precoded wav file playing; use 5min wave particle lecture as demo

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pstruebi
2025-07-08 14:38:49 +02:00
parent b4e53917b3
commit 8307e1cdec
2 changed files with 43 additions and 34 deletions
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23
src/auracast/auracast_config.py
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@@ -78,23 +78,32 @@ class AuracastBigConfigFra(AuracastBigConfig):
name: str = 'Auditoire A' name: str = 'Auditoire A'
language: str ='fra' language: str ='fra'
program_info: str = 'Auditoire FR' program_info: str = 'Auditoire FR'
audio_source: str = 'file:./testdata/announcement_fr.wav' audio_source: str = 'file:./testdata/wave_particle_5min_fr.wav'
class AuracastBigConfigSpa(AuracastBigConfig): class AuracastBigConfigSpa(AuracastBigConfig):
id: int =12345 id: int =12345
random_address: str = 'F4:F1:F2:F3:F4:F5' random_address: str = 'F4:F1:F2:F3:F4:F5'
name: str = 'Broadcast3' name: str = 'Auditorio A'
language: str ='spa' language: str ='spa'
program_info: str = 'Announcements Spanish' program_info: str = 'Auditorio ES'
audio_source: str = 'file:./testdata/announcement_es.wav' audio_source: str = 'file:./testdata/wave_particle_5min_es.wav'
class AuracastBigConfigIta(AuracastBigConfig): class AuracastBigConfigIta(AuracastBigConfig):
id: int =1234567 id: int =1234567
random_address: str = 'F5:F1:F2:F3:F4:F5' random_address: str = 'F5:F1:F2:F3:F4:F5'
name: str = 'Broadcast4' name: str = 'Aula A'
language: str ='ita' language: str ='ita'
program_info: str = 'Announcements Italian' program_info: str = 'Aula IT'
audio_source: str = 'file:./testdata/announcement_it.wav' audio_source: str = 'file:./testdata/wave_particle_5min_it.wav'
class AuracastBigConfigPol(AuracastBigConfig):
id: int =12345678
random_address: str = 'F6:F1:F2:F3:F4:F5'
name: str = 'Sala Wykładowa'
language: str ='pol'
program_info: str = 'Sala Wykładowa PL'
audio_source: str = 'file:./testdata/wave_particle_5min_pl.wav'
class AuracastConfigGroup(AuracastGlobalConfig): class AuracastConfigGroup(AuracastGlobalConfig):

54
src/auracast/multicast.py
View File

@@ -520,28 +520,29 @@ class Streamer():
if pcm_format.channels != 1: if pcm_format.channels != 1:
logging.info("Input device provides %d channels – will down-mix to mono for LC3", pcm_format.channels) logging.info("Input device provides %d channels – will down-mix to mono for LC3", pcm_format.channels)
if pcm_format.sample_type == audio_io.PcmFormat.SampleType.INT16: if pcm_format.sample_type == audio_io.PcmFormat.SampleType.INT16:
pcm_bit_depth = 16 pcm_bit_depth = 16
elif pcm_format.sample_type == audio_io.PcmFormat.SampleType.FLOAT32: elif pcm_format.sample_type == audio_io.PcmFormat.SampleType.FLOAT32:
pcm_bit_depth = None pcm_bit_depth = None
else: else:
logging.error("Only INT16 and FLOAT32 sample types are supported") logging.error("Only INT16 and FLOAT32 sample types are supported")
return return
encoder = lc3.Encoder(
frame_duration_us=global_config.frame_duration_us, encoder = lc3.Encoder(
sample_rate_hz=global_config.auracast_sampling_rate_hz, frame_duration_us=global_config.frame_duration_us,
num_channels=1, sample_rate_hz=global_config.auracast_sampling_rate_hz,
input_sample_rate_hz=pcm_format.sample_rate, num_channels=1,
) input_sample_rate_hz=pcm_format.sample_rate,
lc3_frame_samples = encoder.get_frame_samples() # number of the pcm samples per lc3 frame )
big['pcm_bit_depth'] = pcm_bit_depth lc3_frame_samples = encoder.get_frame_samples() # number of the pcm samples per lc3 frame
big['channels'] = pcm_format.channels big['pcm_bit_depth'] = pcm_bit_depth
big['lc3_frame_samples'] = lc3_frame_samples big['channels'] = pcm_format.channels
big['lc3_bytes_per_frame'] = global_config.octets_per_frame big['lc3_frame_samples'] = lc3_frame_samples
big['audio_input'] = audio_input big['lc3_bytes_per_frame'] = global_config.octets_per_frame
big['encoder'] = encoder big['audio_input'] = audio_input
big['precoded'] = False big['encoder'] = encoder
big['precoded'] = False
logging.info("Streaming audio...") logging.info("Streaming audio...")
@@ -551,7 +552,6 @@ class Streamer():
while self.is_streaming: while self.is_streaming:
stream_finished = [False for _ in range(len(bigs))] stream_finished = [False for _ in range(len(bigs))]
for i, big in enumerate(bigs.values()): for i, big in enumerate(bigs.values()):
if big['precoded']:# everything was already lc3 coded beforehand if big['precoded']:# everything was already lc3 coded beforehand
lc3_frame = bytes( lc3_frame = bytes(
itertools.islice(big['lc3_frames'], big['lc3_bytes_per_frame']) itertools.islice(big['lc3_frames'], big['lc3_bytes_per_frame'])
@@ -642,7 +642,7 @@ if __name__ == "__main__":
bigs = [ bigs = [
auracast_config.AuracastBigConfigDeu(), auracast_config.AuracastBigConfigDeu(),
auracast_config.AuracastBigConfigEng(), auracast_config.AuracastBigConfigEng(),
#auracast_config.AuracastBigConfigFra(), auracast_config.AuracastBigConfigFra(),
#auracast_config.AuracastBigConfigEs(), #auracast_config.AuracastBigConfigEs(),
#auracast_config.AuracastBigConfigIt(), #auracast_config.AuracastBigConfigIt(),
] ]
@@ -656,15 +656,15 @@ if __name__ == "__main__":
#config.transport='serial:/dev/serial/by-id/usb-SEGGER_J-Link_001057705357-if02,1000000,rtscts' # transport for nrf54l15dk #config.transport='serial:/dev/serial/by-id/usb-SEGGER_J-Link_001057705357-if02,1000000,rtscts' # transport for nrf54l15dk
#config.transport='serial:/dev/serial/by-id/usb-ZEPHYR_Zephyr_HCI_UART_sample_95A087EADB030B24-if00,115200,rtscts' #nrf52dongle hci_uart usb cdc #config.transport='serial:/dev/serial/by-id/usb-ZEPHYR_Zephyr_HCI_UART_sample_95A087EADB030B24-if00,115200,rtscts' #nrf52dongle hci_uart usb cdc
#config.transport='usb:2fe3:000b' #nrf52dongle hci_usb # TODO: iso packet over usb not supported #config.transport='usb:2fe3:000b' #nrf52dongle hci_usb # TODO: iso packet over usb not supported
# config.transport= 'auto' config.transport= 'auto'
config.transport='serial:/dev/ttyAMA3,1000000,rtscts' # transport for raspberry pi #config.transport='serial:/dev/ttyAMA3,1000000,rtscts' # transport for raspberry pi
# TODO: encrypted streams are not working # TODO: encrypted streams are not working
for big in config.bigs: for big in config.bigs:
#big.code = 'ff'*16 # returns hci/HCI_ENCRYPTION_MODE_NOT_ACCEPTABLE_ERROR #big.code = 'ff'*16 # returns hci/HCI_ENCRYPTION_MODE_NOT_ACCEPTABLE_ERROR
#big.code = '78 e5 dc f1 34 ab 42 bf c1 92 ef dd 3a fd 67 ae' #big.code = '78 e5 dc f1 34 ab 42 bf c1 92 ef dd 3a fd 67 ae'
big.precode_wav = True big.precode_wav = False
#big.audio_source = big.audio_source.replace('.wav', '_10_16_32.lc3') #lc3 precoded files #big.audio_source = big.audio_source.replace('.wav', '_10_16_32.lc3') #lc3 precoded files
#big.audio_source = read_lc3_file(big.audio_source) # load files in advance #big.audio_source = read_lc3_file(big.audio_source) # load files in advance