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NS_E_PDA_CANNOT_TRANSCODE_TO_VIDEO
Failure point and ownership
NS_E_PDA_CANNOT_TRANSCODE_TO_VIDEO with value 0xC00D123E records finding a video target format and profile accepted by the device. The producing call and its state are more diagnostic than a later aggregate Player failure.
Underlying mechanism
Before transfer, the Player can compare the source media type with the device’s format capabilities and build a conversion path. Source decoding, target encoding, metadata generation, temporary-cache output and optional encryption are separate phases.
A source that plays locally can still lack a valid conversion path to the specific format and limits advertised by the connected device. The condition can be reproduced when the device requires a resolution/codec combination the installed encoder cannot produce.
Trace fields worth keeping
| Evidence | Why it matters for cannot transcode to video |
|---|---|
| Producing object and operation | source path and media type, decoder and encoder identifiers, target audio/video/image format, device capability response, output dimensions/bitrate, cache path and free space, EFS state, conversion stage and first codec HRESULT |
| Key observation | device video codecs, dimensions/frame-rate limits, source type and encoder availability |
| Controlled comparison | Repeat the producing call after changing only this condition: select a supported video profile or omit the incompatible item. |
Decision path
- Capture
0xC00D123E, the exact Player/API operation and the first timestamp at which it appears. - Save device video codecs, dimensions/frame-rate limits, source type and encoder availability; do this before ejecting media, reconnecting a device, canceling a job or rebuilding the Player object.
- Correlate the result with source path and media type, decoder and encoder identifiers, target audio/video/image format, device capability response, output dimensions/bitrate, cache path and free space, EFS state, conversion stage and first codec HRESULT.
- Reproduce once with the original source and destination, then apply only this change: select a supported video profile or omit the incompatible item.
Close alternatives
| Related result | Different condition |
|---|---|
NS_E_PDA_CANNOT_TRANSCODE_TO_AUDIO | finding an audio target format accepted by the device |
NS_E_PDA_CANNOT_TRANSCODE_TO_IMAGE | finding an image target type and dimensions accepted by the device |
NS_E_PDA_FAILED_TO_ENCRYPT_TRANSCODED_FILE | reading or securing converted output when the source/cache file is EFS-encrypted |
Safe correction
Correct this boundary by making sure you select a supported video profile or omit the incompatible item. Then reacquire the interface or media state that produced it and repeat that call.
Video conversion adds geometry, frame-rate and profile constraints
Preserve the source video subtype and decoded dimensions, then compare them with each device-advertised video profile: codec, profile/level, width, height, frame rate, pixel aspect ratio and bitrate. An audio encoder being available does not satisfy this path. The selected video encoder must produce a complete target combination accepted by the device, often together with a separately compatible audio stream.
Test with one conservative device profile rather than changing codec, resolution and frame rate simultaneously. A failure to instantiate the video encoder differs from a profile that instantiates but rejects dimensions or rate control. Record that boundary so the correction targets encoder availability, scaling or device limits instead of unrelated synchronization settings.
Source material
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