Case
aiosendspin -> sendspin-go
Start the server first, then the client, let the server discover/connect, stream FLAC derived from almost_silent.flac, and compare the transported FLAC header and chunk bytes as received by the client.
Server
aiosendspin
Client
sendspin-go
Status
Passed
FLAC header and chunk bytes match exactly
Inspection
Summaries, logs, and builds
Matrix result
RAW{
"case_dir": "artifacts/results/data/macos__server-initiated-flac__aiosendspin__to__sendspin-go",
"client_exit_code": 0,
"client_impl": "sendspin-go",
"reason": "FLAC header and chunk bytes match exactly",
"scenario_id": "server-initiated-flac",
"server_exit_code": 0,
"server_impl": "aiosendspin",
"status": "passed"
}Server summary (JSON)
RAW{
"audio": {
"bit_depth": 16,
"channels": 1,
"clip_seconds": 5.0,
"duration_seconds": 4.968,
"fixture": "/Users/runner/work/conformance/conformance/repos/sendspin-cli/tests/fixtures/almost_silent.flac",
"frame_alignment_samples": 576,
"frame_count": 39744,
"sample_rate": 8000,
"sent_audio_chunk_count": 69,
"sent_codec_header_sha256": "efdfadf8f1d1bb8520b015c54e57d2440cc1e99172ed5d99a92a7b77f0c68a62",
"sent_encoded_byte_count": 3886,
"sent_encoded_sha256": "a827ae929643694d40aad698c853eed5f5c47e7040c0ffd2ea952c7e3723724d",
"source_flac_sha256": "8fdda8244e318c63cd8b699fe461cd7cdddbb729327a0ba00d1bfdbe2192fe17",
"source_pcm_sha256": "ea4a8f1ced7d3ad85d46da1dea8cf98cd2cf75dbf305fb11cffea11b1e180952",
"trimmed_source_frames": 256
},
"client": {
"active_roles": [
"player@v1"
],
"client_id": "sendspin-go-client-id",
"name": "sendspin-go-client",
"supported_roles": [
"player@v1"
]
},
"discovery_method": "registry_fallback",
"implementation": "aiosendspin",
"initiator_role": "server",
"peer_hello": {
"payload": {
"client_id": "sendspin-go-client-id",
"device_info": {
"manufacturer": "Sendspin Conformance",
"product_name": "sendspin-go Conformance Client",
"software_version": "0.1.0"
},
"name": "sendspin-go-client",
"player@v1_support": {
"buffer_capacity": 2000000,
"supported_commands": [
"volume",
"mute"
],
"supported_formats": [
{
"bit_depth": 24,
"channels": 1,
"codec": "flac",
"sample_rate": 8000
},
{
"bit_depth": 16,
"channels": 1,
"codec": "flac",
"sample_rate": 8000
},
{
"bit_depth": 24,
"channels": 1,
"codec": "pcm",
"sample_rate": 8000
},
{
"bit_depth": 16,
"channels": 1,
"codec": "pcm",
"sample_rate": 8000
}
]
},
"supported_roles": [
"player@v1"
],
"version": 1
},
"type": "client/hello"
},
"preferred_codec": "flac",
"role": "server",
"scenario_id": "server-initiated-flac",
"server_id": "aiosendspin-server",
"server_name": "aiosendspin server",
"status": "ok",
"stream": {
"bit_depth": 24,
"channels": 1,
"codec": "flac",
"codec_header": "ZkxhQ4AAACICQAJAAAAAAAbWAfQBcAAAAAAAAAAAAAAAAAAAAAAAAAAA",
"codec_header_sha256": "efdfadf8f1d1bb8520b015c54e57d2440cc1e99172ed5d99a92a7b77f0c68a62",
"sample_rate": 8000
}
}Server log
RAWINFO:aiosendspin.server.server:Starting Sendspin server on port 19000
INFO:aiosendspin.server.server:Sendspin server started successfully on 127.0.0.1:19000
WARNING:aiosendspin.server.server:No IP addresses available for mDNS advertising. Clients may not be able to discover this server. Consider specifying addresses manually via advertise_addresses.
{
"audio": {
"bit_depth": 16,
"channels": 1,
"clip_seconds": 5.0,
"duration_seconds": 4.968,
"fixture": "/Users/runner/work/conformance/conformance/repos/sendspin-cli/tests/fixtures/almost_silent.flac",
"frame_alignment_samples": 576,
"frame_count": 39744,
"sample_rate": 8000,
"sent_audio_chunk_count": 69,
"sent_codec_header_sha256": "efdfadf8f1d1bb8520b015c54e57d2440cc1e99172ed5d99a92a7b77f0c68a62",
"sent_encoded_byte_count": 3886,
"sent_encoded_sha256": "a827ae929643694d40aad698c853eed5f5c47e7040c0ffd2ea952c7e3723724d",
"source_flac_sha256": "8fdda8244e318c63cd8b699fe461cd7cdddbb729327a0ba00d1bfdbe2192fe17",
"source_pcm_sha256": "ea4a8f1ced7d3ad85d46da1dea8cf98cd2cf75dbf305fb11cffea11b1e180952",
"trimmed_source_frames": 256
},
"client": {
"active_roles": [
"player@v1"
],
"client_id": "sendspin-go-client-id",
"name": "sendspin-go-client",
"supported_roles": [
"player@v1"
]
},
"discovery_method": "registry_fallback",
"implementation": "aiosendspin",
"initiator_role": "server",
"peer_hello": {
"payload": {
"client_id": "sendspin-go-client-id",
"device_info": {
"manufacturer": "Sendspin Conformance",
"product_name": "sendspin-go Conformance Client",
"software_version": "0.1.0"
},
"name": "sendspin-go-client",
"player@v1_support": {
"buffer_capacity": 2000000,
"supported_commands": [
"volume",
"mute"
],
"supported_formats": [
{
"bit_depth": 24,
"channels": 1,
"codec": "flac",
"sample_rate": 8000
},
{
"bit_depth": 16,
"channels": 1,
"codec": "flac",
"sample_rate": 8000
},
{
"bit_depth": 24,
"channels": 1,
"codec": "pcm",
"sample_rate": 8000
},
{
"bit_depth": 16,
"channels": 1,
"codec": "pcm",
"sample_rate": 8000
}
]
},
"supported_roles": [
"player@v1"
],
"version": 1
},
"type": "client/hello"
},
"preferred_codec": "flac",
"role": "server",
"scenario_id": "server-initiated-flac",
"server_id": "aiosendspin-server",
"server_name": "aiosendspin server",
"status": "ok",
"stream": {
"bit_depth": 24,
"channels": 1,
"codec": "flac",
"codec_header": "ZkxhQ4AAACICQAJAAAAAAAbWAfQBcAAAAAAAAAAAAAAAAAAAAAAAAAAA",
"codec_header_sha256": "efdfadf8f1d1bb8520b015c54e57d2440cc1e99172ed5d99a92a7b77f0c68a62",
"sample_rate": 8000
}
}
Client summary (JSON)
RAW{
"audio": {
"audio_chunk_count": 69,
"received_encoded_sha256": "a827ae929643694d40aad698c853eed5f5c47e7040c0ffd2ea952c7e3723724d",
"received_pcm_sha256": null,
"received_sample_count": 0
},
"client_id": "sendspin-go-client-id",
"client_name": "sendspin-go-client",
"implementation": "sendspin-go",
"initiator_role": "server",
"peer_hello": {
"payload": {
"active_roles": [
"player@v1"
],
"connection_reason": "playback",
"name": "aiosendspin server",
"server_id": "aiosendspin-server",
"version": 1
},
"type": "server/hello"
},
"preferred_codec": "flac",
"role": "client",
"scenario_id": "server-initiated-flac",
"server": {
"active_roles": [
"player@v1"
],
"connection_reason": "playback",
"name": "aiosendspin server",
"server_id": "aiosendspin-server",
"version": 1
},
"status": "ok",
"stream": {
"bit_depth": 24,
"channels": 1,
"codec": "flac",
"codec_header": "ZkxhQ4AAACICQAJAAAAAAAbWAfQBcAAAAAAAAAAAAAAAAAAAAAAAAAAA",
"sample_rate": 8000
}
}Client log
RAW{
"audio": {
"audio_chunk_count": 69,
"received_encoded_sha256": "a827ae929643694d40aad698c853eed5f5c47e7040c0ffd2ea952c7e3723724d",
"received_pcm_sha256": null,
"received_sample_count": 0
},
"client_id": "sendspin-go-client-id",
"client_name": "sendspin-go-client",
"implementation": "sendspin-go",
"initiator_role": "server",
"peer_hello": {
"payload": {
"active_roles": [
"player@v1"
],
"connection_reason": "playback",
"name": "aiosendspin server",
"server_id": "aiosendspin-server",
"version": 1
},
"type": "server/hello"
},
"preferred_codec": "flac",
"role": "client",
"scenario_id": "server-initiated-flac",
"server": {
"active_roles": [
"player@v1"
],
"connection_reason": "playback",
"name": "aiosendspin server",
"server_id": "aiosendspin-server",
"version": 1
},
"status": "ok",
"stream": {
"bit_depth": 24,
"channels": 1,
"codec": "flac",
"codec_header": "ZkxhQ4AAACICQAJAAAAAAAbWAfQBcAAAAAAAAAAAAAAAAAAAAAAAAAAA",
"sample_rate": 8000
}
}
Server build log · python-adapters · built · 0.04s
RAWListing 'src'... Listing 'src/conformance'... Listing 'src/conformance/adapters'... Compiling 'src/conformance/adapters/__init__.py'... Compiling 'src/conformance/adapters/aiosendspin_client.py'... Compiling 'src/conformance/adapters/aiosendspin_server.py'... Compiling 'src/conformance/adapters/placeholder.py'... Compiling 'src/conformance/cli.py'... Compiling 'src/conformance/merge.py'... Compiling 'src/conformance/registry.py'... Listing 'src/sendspin_conformance.egg-info'... Listing 'scripts'... Compiling 'scripts/merge_results.py'... Compiling 'scripts/run_all.py'... Compiling 'scripts/setup_repositories.py'... Compiling 'scripts/setup_workspace.py'...
Client build log · sendspin-go-client · built · 7.94s
RAWgo: downloading github.com/gorilla/websocket v1.5.3 go: downloading github.com/mewkiz/flac v1.0.13 go: downloading github.com/icza/bitio v1.1.0 go: downloading github.com/mewkiz/pkg v0.0.0-20250417130911-3f050ff8c56d go: downloading github.com/mewpkg/term v0.0.0-20241026122259-37a80af23985