* fix(server): capture ffmpeg stderr and warn on empty transcoded output
When ffmpeg fails during transcoding (e.g., missing codec like libopus),
the error was silently discarded because stderr was sent to io.Discard
and the HTTP response returned 200 OK with a 0-byte body.
- Capture ffmpeg stderr in a bounded buffer (4KB) and include it in the
error message when the process exits with a non-zero status code
- Log a warning when transcoded output is 0 bytes, guiding users to
check codec support and enable Trace logging for details
- Remove log level guard so transcoding errors are always logged, not
just at Debug level
Signed-off-by: Deluan <deluan@navidrome.org>
* fix(server): return proper error responses for empty transcoded output
Instead of returning HTTP 200 with 0-byte body when transcoding fails,
return a Subsonic error response (for stream/download/getTranscodeStream)
or HTTP 500 (for public shared streams). This gives clients a clear
signal that the request failed rather than a misleading empty success.
Signed-off-by: Deluan <deluan@navidrome.org>
* test(e2e): add tests for empty transcoded stream error responses
Add E2E tests verifying that stream and download endpoints return
Subsonic error responses when transcoding produces empty output.
Extend spyStreamer with SimulateEmptyStream and SimulateError fields
to support failure injection in tests.
Signed-off-by: Deluan <deluan@navidrome.org>
* refactor(server): extract stream serving logic into Stream.Serve method
Extract the duplicated non-seekable stream serving logic (header setup,
estimateContentLength, HEAD draining, io.Copy with error/empty detection)
from server/subsonic/stream.go and server/public/handle_streams.go into a
single Stream.Serve method on core/stream. Both callers now delegate to it,
eliminating ~30 lines of near-identical code.
* fix(server): return 200 with empty body for stream/download on empty transcoded output
Don't return a Subsonic error response when transcoding produces empty
output on stream/download endpoints — just log the error and return 200
with an empty body. The getTranscodeStream and public share endpoints
still return HTTP 500 for empty output. Stream.Serve now returns
(int64, error) so callers can check the byte count.
---------
Signed-off-by: Deluan <deluan@navidrome.org>
* refactor: rename core/transcode directory to core/stream
* refactor: update all imports from core/transcode to core/stream
* refactor: rename exported symbols to fit core/stream package name
* refactor: simplify MediaStreamer interface to single NewStream method
Remove the two-method interface (NewStream + DoStream) in favor of a
single NewStream(ctx, mf, req) method. Callers are now responsible for
fetching the MediaFile before calling NewStream. This removes the
implicit DB lookup from the streamer, making it a pure streaming
concern.
* refactor: update all callers from DoStream to NewStream
* chore: update wire_gen.go and stale comment for core/stream rename
* refactor: update wire command to handle GO_BUILD_TAGS correctly
Signed-off-by: Deluan <deluan@navidrome.org>
* fix: distinguish not-found from internal errors in public stream handler
* refactor: remove unused ID field from stream.Request
* refactor: simplify ResolveRequestFromToken to receive *model.MediaFile
Move MediaFile fetching responsibility to callers, making the method
focused on token validation and request resolution. Remove ErrMediaNotFound
(no longer produced). Update GetTranscodeStream handler to fetch the
media file before calling ResolveRequestFromToken.
* refactor: extend tokenTTL from 12 to 48 hours
Signed-off-by: Deluan <deluan@navidrome.org>
---------
Signed-off-by: Deluan <deluan@navidrome.org>
* feat(subsonic): implement transcode decision logic and codec handling for media files
Signed-off-by: Deluan <deluan@navidrome.org>
* fix(subsonic): update codec limitation structure and decision logic for improved clarity
Signed-off-by: Deluan <deluan@navidrome.org>
* fix(transcoding): update bitrate handling to use kilobits per second (kbps) across transcode decision logic
Signed-off-by: Deluan <deluan@navidrome.org>
* refactor(transcoding): simplify container alias handling in matchesContainer function
Signed-off-by: Deluan <deluan@navidrome.org>
* fix(transcoding): enforce POST method for GetTranscodeDecision and handle non-POST requests
Signed-off-by: Deluan <deluan@navidrome.org>
* feat(transcoding): add enums for protocol, comparison operators, limitations, and codec profiles in transcode decision logic
Signed-off-by: Deluan <deluan@navidrome.org>
* refactor(transcoding): streamline limitation checks and applyLimitation logic for improved readability and maintainability
Signed-off-by: Deluan <deluan@navidrome.org>
* refactor(transcoding): replace strings.EqualFold with direct comparison for protocol and limitation checks
Signed-off-by: Deluan <deluan@navidrome.org>
* refactor(transcoding): rename token methods to CreateTranscodeParams and ParseTranscodeParams for clarity
Signed-off-by: Deluan <deluan@navidrome.org>
* refactor(transcoding): enhance logging for transcode decision process and client info conversion
Signed-off-by: Deluan <deluan@navidrome.org>
* refactor(transcoding): rename TranscodeDecision to Decider and update related methods for clarity
Signed-off-by: Deluan <deluan@navidrome.org>
* refactor(transcoding): enhance transcoding config lookup logic for audio codecs
Signed-off-by: Deluan <deluan@navidrome.org>
* refactor(transcoding): enhance transcoding options with sample rate support and improve command handling
Signed-off-by: Deluan <deluan@navidrome.org>
* refactor(transcoding): add bit depth support for audio transcoding and enhance related logic
Signed-off-by: Deluan <deluan@navidrome.org>
* refactor(transcoding): enhance AAC command handling and support for audio channels in streaming
Signed-off-by: Deluan <deluan@navidrome.org>
* refactor(transcoding): streamline transcoding logic by consolidating stream parameter handling and enhancing alias mapping
Signed-off-by: Deluan <deluan@navidrome.org>
* refactor(transcoding): update default command handling and add codec support for transcoding
Signed-off-by: Deluan <deluan@navidrome.org>
* fix: implement noopDecider for transcoding decision handling in tests
Signed-off-by: Deluan <deluan@navidrome.org>
* fix: address review findings for OpenSubsonic transcoding PR
Fix multiple issues identified during code review of the transcoding
extension: add missing return after error in shared stream handler
preventing nil pointer panic, replace dead r.Body nil check with
MaxBytesReader size limit, distinguish not-found from other DB errors,
fix bpsToKbps integer truncation with rounding, add "pcm" to
isLosslessFormat for consistency with model.IsLossless(), add
sampleRate/bitDepth/channels to streaming log, fix outdated test
comment, and add tests for conversion functions and GetTranscodeStream
parameter passing.
* feat(transcoding): add sourceUpdatedAt to decision and validate transcode parameters
Signed-off-by: Deluan <deluan@navidrome.org>
* fix: small issues
Updated mock AAC transcoding command to use the new default (ipod with
fragmented MP4) matching the migration, ensuring tests exercise the same
buildDynamicArgs code path as production. Improved archiver test mock to
match on the whole StreamRequest struct instead of decomposing fields,
making it resilient to future field additions. Added named constants for
JWT claim keys in the transcode token and wrapped ParseTranscodeParams
errors with ErrTokenInvalid for consistency. Documented the IsLossless
BitDepth fallback heuristic as temporary until Codec column is populated.
Signed-off-by: Deluan <deluan@navidrome.org>
* fix(transcoding): adapt transcode claims to struct-based auth.Claims
Updated transcode token handling to use the struct-based auth.Claims
introduced on master, replacing the previous map[string]any approach.
Extended auth.Claims with transcoding-specific fields (MediaID, DirectPlay,
UpdatedAt, Channels, SampleRate, BitDepth) and added float64 fallback in
ClaimsFromToken for numeric claims that lose their Go type during JWT
string serialization. Also added the missing lyrics parameter to all
subsonic.New() calls in test files.
* feat(model): add ProbeData field and UpdateProbeData repository method
Add probe_data TEXT column to media_file for caching ffprobe results.
Add UpdateProbeData to MediaFileRepository interface and implementations.
Use hash:"ignore" tag so probe data doesn't affect MediaFile fingerprints.
* feat(ffmpeg): add ProbeAudioStream for authoritative audio metadata
Add ProbeAudioStream to FFmpeg interface, using ffprobe to extract
codec, profile, bitrate, sample rate, bit depth, and channels.
Parse bits_per_raw_sample as fallback for FLAC/ALAC bit depth.
Normalize "unknown" profile to empty string.
All parseProbeOutput tests use real ffprobe JSON from actual files.
* feat(transcoding): integrate ffprobe into transcode decisions
Add ensureProbed to probe media files on first transcode decision,
caching results in probe_data. Build SourceStream from probe data
with fallback to tag-based metadata.
Refactor decision logic to pass StreamDetails instead of MediaFile,
enabling codec profile limitations (e.g., audioProfile) to use
probe data. Add normalizeProbeCodec to map ffprobe codec names
(dsd_lsbf_planar, pcm_s16le) to internal names (dsd, pcm).
NewDecider now accepts ffmpeg.FFmpeg; wire_gen.go regenerated.
* feat(transcoding): add DevEnableMediaFileProbe config flag
Add DevEnableMediaFileProbe (default true) to allow disabling ffprobe-
based media file probing as a safety fallback. When disabled, the
decider uses tag-based metadata from the scanner instead.
* test(transcode): add ensureProbed unit tests
Test probing when ProbeData is empty, skipping when already set,
error propagation from ffprobe, and DevEnableMediaFileProbe flag.
* refactor(ffmpeg): use command constant and select_streams for ProbeAudioStream
Move ffprobe arguments to a probeAudioStreamCmd constant, following the
same pattern as extractImageCmd and probeCmd. Add -select_streams a:0 to
only probe the first audio stream, avoiding unnecessary parsing of video
and artwork streams. Derive the ffprobe binary path safely using
filepath.Dir/Base instead of replacing within the full path string.
* refactor(transcode): decouple transcode token claims from auth.Claims
Remove six transcode-specific fields (MediaID, DirectPlay, UpdatedAt,
Channels, SampleRate, BitDepth) from auth.Claims, which is shared with
session and share tokens. Transcode tokens are signed parameter-passing
tokens, not authentication tokens, so coupling them to auth created
misleading dependencies.
The transcode package now owns its own JWT claim serialization via
Decision.toClaimsMap() and paramsFromToken(), using generic
auth.EncodeToken/DecodeAndVerifyToken wrappers that keep TokenAuth
encapsulated. Wire format (JWT claim keys) is unchanged, so in-flight
tokens remain compatible.
Signed-off-by: Deluan <deluan@navidrome.org>
* refactor(transcode): simplify code after review
Extract getIntClaim helper to eliminate repeated int/int64/float64 JWT
claim extraction pattern in paramsFromToken and ClaimsFromToken. Rewrite
checkIntLimitation as a one-liner delegating to applyIntLimitation.
Return probe result from ensureProbed to avoid redundant JSON round-trip.
Extract toResponseStreamDetails helper and mediaTypeSong constant in
the API layer, and use transcode.ProtocolHTTP constant instead of
hardcoded string.
Signed-off-by: Deluan <deluan@navidrome.org>
* fix(ffmpeg): enhance bit_rate parsing logic for audio streams
Signed-off-by: Deluan <deluan@navidrome.org>
* fix(transcode): improve code review findings across transcode implementation
- Fix parseProbeData to return nil on JSON unmarshal failure instead of
a zero-valued struct, preventing silent degradation of source stream details
- Use probe-resolved codec for lossless detection in buildSourceStream
instead of the potentially stale scanner data
- Remove MediaFile.IsLossless() (dead code) and consolidate lossless
detection in isLosslessFormat(), using codec name only — bit depth is
not reliable since lossy codecs like ADPCM report non-zero values
- Add "wavpack" to lossless codec list (ffprobe codec_name for WavPack)
- Guard bpsToKbps against negative input values
- Fix misleading comment in buildTemplateArgs about conditional injection
- Avoid leaking internal error details in Subsonic API responses
- Add missing test for ErrNotFound branch in GetTranscodeDecision
- Add TODO for hardcoded protocol in toResponseStreamDetails
* refactor(transcode): streamline transcoding command lookup and format resolution
Signed-off-by: Deluan <deluan@navidrome.org>
* feat(transcode): implement server-side transcoding override for player formats
Signed-off-by: Deluan <deluan@navidrome.org>
* fix(transcode): honor bit depth and channel constraints in transcoding selection
selectTranscodingOptions only checked sample rate when deciding whether
same-format transcoding was needed, ignoring requested bit depth and
channel reductions. This caused the streamer to return raw audio when
the transcode decision requested downmix or bit-depth conversion.
* refactor(transcode): unify streaming decision engine via MakeDecision
Move transcoding decision-making out of mediaStreamer and into the
subsonic Stream/Download handlers, using transcode.Decider.MakeDecision
as the single decision engine. This eliminates selectTranscodingOptions
and the mismatch between decision and streaming code paths (decision
used LookupTranscodeCommand with built-in fallbacks, while streaming
used FindByFormat which only checked the DB).
- Add DecisionOptions with SkipProbe to MakeDecision so the legacy
streaming path never calls ffprobe
- Add buildLegacyClientInfo to translate legacy stream params (format,
maxBitRate, DefaultDownsamplingFormat) into a synthetic ClientInfo
- Add resolveStreamRequest on the subsonic Router to resolve legacy
params into a fully specified StreamRequest via MakeDecision
- Simplify DoStream to a dumb executor that receives pre-resolved params
- Remove selectTranscodingOptions entirely
Signed-off-by: Deluan <deluan@navidrome.org>
* refactor(transcode): move MediaStreamer into core/transcode and unify StreamRequest
Moved MediaStreamer, Stream, TranscodingCache and related types from
core/media_streamer.go into core/transcode/, eliminating the duplicate
StreamRequest type. The transcode.StreamRequest now carries all fields
(ID, Format, BitRate, SampleRate, BitDepth, Channels, Offset) and
ResolveStream returns a fully-populated value, removing manual field
copying at every call site. Also moved buildLegacyClientInfo into the
transcode package alongside ResolveStream, and unexported
ParseTranscodeParams since it was only used internally by
ValidateTranscodeParams.
* refactor(transcode): rename Decider methods and unexport Params type
Rename ResolveStream → ResolveRequest and ValidateTranscodeParams →
ResolveRequestFromToken for clarity and consistency. The new
ResolveRequestFromToken returns a StreamRequest directly (instead of
the intermediate Params type), eliminating manual Params→StreamRequest
conversion in callers. Unexport Params to params since it is now only
used internally for JWT token parsing.
* test(transcode): remove redundant tests and use constants
Remove tests that duplicate coverage from integration-level tests
(toClaimsMap, paramsFromToken round-trips, applyServerOverride direct
call, duplicate 410 handler test). Replace raw "http" strings with
ProtocolHTTP constant. Consolidate lossy -sample_fmt tests into
DescribeTable.
* refactor(transcode): split oversized files into focused modules
Split transcode.go and transcode_test.go into focused files by concern:
- decider.go: decision engine (MakeDecision, direct play/transcode evaluation, probe)
- token.go: JWT token encode/decode (params, toClaimsMap, paramsFromToken, CreateTranscodeParams, ResolveRequestFromToken)
- legacy_client.go: legacy Subsonic bridge (buildLegacyClientInfo, ResolveRequest)
- codec_test.go: isLosslessFormat and normalizeProbeCodec tests
- token_test.go: token round-trip and ResolveRequestFromToken tests
Moved the Decider interface from types.go to decider.go to keep it near
its implementation, and cleaned up types.go to contain only pure type
definitions and constants. No public API changes.
* refactor(transcode): reorder parameters in applyServerOverride function
Signed-off-by: Deluan <deluan@navidrome.org>
* test(e2e): add NewTestStream function and implement spyStreamer for testing
Signed-off-by: Deluan <deluan@navidrome.org>
---------
Signed-off-by: Deluan <deluan@navidrome.org>
Deluan Quintão