can't found video filter issue in take snapshot

[AlexJung]

Hi, I'm tring to take snapshot in android.
I use libvlc_video_take_snapshot and compiled vlc with '--enable-encoder=png' and successful.
snapshot process was good. but, in 'picture_Export' function, vlc cannot found video filter to convert Image.

Logs are belows:
D/VLC: [9f3e2028/4404] core filter: looking for video filter module matching "any": 39 candidates
D/VLC: [9f3e2028/4404] chain filter: Trying to build resize+chroma
D/VLC: [9f3e4da8/4404] core filter: looking for video filter module matching "any": 39 candidates
D/VLC: [9f3e4da8/4404] core filter: no video filter modules matched
E/VLC: [9f3e2028/4404] core filter: Failed to create video filter
D/VLC: [9f3e2028/4404] chain filter: Trying to build chroma+resize
D/VLC: [9f3e4da8/4404] core filter: looking for video filter module matching "any": 39 candidates
D/VLC: [9f3e4da8/4404] chain filter: Trying to use chroma I420 as middle man
D/VLC: [9f3e54a8/4404] core filter: looking for video filter module matching "any": 39 candidates
D/VLC: [9f3e54a8/4404] chain filter: Trying to use chroma I422 as middle man
D/VLC: [9f3e5ba8/4404] core filter: looking for video filter module matching "any": 39 candidates
E/VLC: [9f3e5ba8/4404] chain filter: Too high level of recursion (2)
D/VLC: [9f3e5ba8/4404] core filter: no video filter modules matched
E/VLC: [9f3e54a8/4404] core filter: Failed to create video filter
D/VLC: [9f3e54a8/4404] chain filter: Trying to use chroma I0AL as middle man
D/VLC: [9f3e5ba8/4404] core filter: looking for video filter module matching "any": 39 candidates
E/VLC: [9f3e5ba8/4404] chain filter: Too high level of recursion (2)
D/VLC: [9f3e5ba8/4404] core filter: no video filter modules matched
E/VLC: [9f3e54a8/4404] core filter: Failed to create video filter
D/VLC: [9f3e54a8/4404] chain filter: Trying to use chroma RV32 as middle man
D/VLC: [9f3e5ba8/4404] core filter: looking for video filter module matching "any": 39 candidates
E/VLC: [9f3e5ba8/4404] chain filter: Too high level of recursion (2)
D/VLC: [9f3e5ba8/4404] core filter: no video filter modules matched
E/VLC: [9f3e54a8/4404] core filter: Failed to create video filter
D/VLC: [9f3e54a8/4404] chain filter: Trying to use chroma RV24 as middle man
D/VLC: [9f3e5ba8/4404] core filter: looking for video filter module matching "any": 39 candidates
E/VLC: [9f3e5ba8/4404] chain filter: Too high level of recursion (2)
D/VLC: [9f3e5ba8/4404] core filter: no video filter modules matched
E/VLC: [9f3e54a8/4404] core filter: Failed to create video filter
D/VLC: [9f3e54a8/4404] core filter: no video filter modules matched
E/VLC: [9f3e4da8/4404] core filter: Failed to create video filter
D/VLC: [9f3e4da8/4404] chain filter: Trying to use chroma I422 as middle man
D/VLC: [9f3e54a8/4404] core filter: looking for video filter module matching "any": 39 candidates
D/VLC: [9f3e54a8/4404] chain filter: Trying to use chroma I420 as middle man
D/VLC: [9f3e5ba8/4404] core filter: looking for video filter module matching "any": 39 candidates
E/VLC: [9f3e5ba8/4404] chain filter: Too high level of recursion (2)
D/VLC: [9f3e5ba8/4404] core filter: no video filter modules matched
E/VLC: [9f3e54a8/4404] core filter: Failed to create video filter
D/VLC: [9f3e54a8/4404] chain filter: Trying to use chroma I0AL as middle man
D/VLC: [9f3e5ba8/4404] core filter: looking for video filter module matching "any": 39 candidates
E/VLC: [9f3e5ba8/4404] chain filter: Too high level of recursion (2)
D/VLC: [9f3e5ba8/4404] core filter: no video filter modules matched
E/VLC: [9f3e54a8/4404] core filter: Failed to create video filter
D/VLC: [9f3e54a8/4404] chain filter: Trying to use chroma RV32 as middle man
D/VLC: [9f3e5ba8/4404] core filter: looking for video filter module matching "any": 39 candidates
E/VLC: [9f3e5ba8/4404] chain filter: Too high level of recursion (2)
D/VLC: [9f3e5ba8/4404] core filter: no video filter modules matched
E/VLC: [9f3e54a8/4404] core filter: Failed to create video filter
D/VLC: [9f3e54a8/4404] chain filter: Trying to use chroma RV24 as middle man
D/VLC: [9f3e5ba8/4404] core filter: looking for video filter module matching "any": 39 candidates
E/VLC: [9f3e5ba8/4404] chain filter: Too high level of recursion (2)
D/VLC: [9f3e5ba8/4404] core filter: no video filter modules matched
E/VLC: [9f3e54a8/4404] core filter: Failed to create video filter
D/VLC: [9f3e54a8/4404] core filter: no video filter modules matched
E/VLC: [9f3e4da8/4404] core filter: Failed to create video filter
D/VLC: [9f3e4da8/4404] chain filter: Trying to use chroma I0AL as middle man
D/VLC: [9f3e54a8/4404] core filter: looking for video filter module matching "any": 39 candidates
D/VLC: [9f3e54a8/4404] chain filter: Trying to use chroma I420 as middle man
D/VLC: [9f3e5ba8/4404] core filter: looking for video filter module matching "any": 39 candidates
E/VLC: [9f3e5ba8/4404] chain filter: Too high level of recursion (2)
D/VLC: [9f3e5ba8/4404] core filter: no video filter modules matched
E/VLC: [9f3e54a8/4404] core filter: Failed to create video filter
D/VLC: [9f3e54a8/4404] chain filter: Trying to use chroma I422 as middle man
D/VLC: [9f3e5ba8/4404] core filter: looking for video filter module matching "any": 39 candidates
E/VLC: [9f3e5ba8/4404] chain filter: Too high level of recursion (2)
D/VLC: [9f3e5ba8/4404] core filter: no video filter modules matched
E/VLC: [9f3e54a8/4404] core filter: Failed to create video filter
D/VLC: [9f3e54a8/4404] chain filter: Trying to use chroma RV32 as middle man
D/VLC: [9f3e5ba8/4404] core filter: looking for video filter module matching "any": 39 candidates
E/VLC: [9f3e5ba8/4404] chain filter: Too high level of recursion (2)
D/VLC: [9f3e5ba8/4404] core filter: no video filter modules matched
E/VLC: [9f3e54a8/4404] core filter: Failed to create video filter
D/VLC: [9f3e54a8/4404] chain filter: Trying to use chroma RV24 as middle man
D/VLC: [9f3e5ba8/4404] core filter: looking for video filter module matching "any": 39 candidates
E/VLC: [9f3e5ba8/4404] chain filter: Too high level of recursion (2)
D/VLC: [9f3e5ba8/4404] core filter: no video filter modules matched
E/VLC: [9f3e54a8/4404] core filter: Failed to create video filter
D/VLC: [9f3e54a8/4404] core filter: no video filter modules matched
E/VLC: [9f3e4da8/4404] core filter: Failed to create video filter
D/VLC: [9f3e4da8/4404] chain filter: Trying to use chroma RV32 as middle man
D/VLC: [9f3e54a8/4404] core filter: looking for video filter module matching "any": 39 candidates
D/VLC: [9f3e54a8/4404] chain filter: Trying to use chroma I420 as middle man
D/VLC: [9f3e5ba8/4404] core filter: looking for video filter module matching "any": 39 candidates
E/VLC: [9f3e5ba8/4404] chain filter: Too high level of recursion (2)
D/VLC: [9f3e5ba8/4404] core filter: no video filter modules matched
E/VLC: [9f3e54a8/4404] core filter: Failed to create video filter
D/VLC: [9f3e54a8/4404] chain filter: Trying to use chroma I422 as middle man
D/VLC: [9f3e5ba8/4404] core filter: looking for video filter module matching "any": 39 candidates
E/VLC: [9f3e5ba8/4404] chain filter: Too high level of recursion (2)
D/VLC: [9f3e5ba8/4404] core filter: no video filter modules matched
E/VLC: [9f3e54a8/4404] core filter: Failed to create video filter
D/VLC: [9f3e54a8/4404] chain filter: Trying to use chroma I0AL as middle man
D/VLC: [9f3e5ba8/4404] core filter: looking for video filter module matching "any": 39 candidates
E/VLC: [9f3e5ba8/4404] chain filter: Too high level of recursion (2)
D/VLC: [9f3e5ba8/4404] core filter: no video filter modules matched
E/VLC: [9f3e54a8/4404] core filter: Failed to create video filter
D/VLC: [9f3e54a8/4404] chain filter: Trying to use chroma RV24 as middle man
D/VLC: [9f3e5ba8/4404] core filter: looking for video filter module matching "any": 39 candidates
E/VLC: [9f3e5ba8/4404] chain filter: Too high level of recursion (2)
D/VLC: [9f3e5ba8/4404] core filter: no video filter modules matched
E/VLC: [9f3e54a8/4404] core filter: Failed to create video filter
D/VLC: [9f3e54a8/4404] core filter: no video filter modules matched
E/VLC: [9f3e4da8/4404] core filter: Failed to create video filter
D/VLC: [9f3e4da8/4404] core filter: no video filter modules matched
E/VLC: [9f3e2028/4404] core filter: Failed to create video filter
D/VLC: [9f3e2028/4404] core filter: no video filter modules matched
D/VLC: [9f3e2028/4404] core filter: no video filter found

Could let me know why vlc cannot found video filter?
Thank you.

[Rémi Denis-Courmont]

Either you are missing some plugins, or the video format is not supported for conversion and export.