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Failed to get key input frame from packet meta when encoding with h264_rkmpp encoder #90

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opened 2025-12-23 10:32:49 +01:00 by backuprepo · 7 comments

backuprepo commented

2025-12-23 10:32:49 +01:00

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Originally created by @lumiaJJ on GitHub (Aug 21, 2024).

Hi,
I am transcoding two streams with h264_rkmpp encoder. But I got an error when my program called av_hwframe_transfer_data before encoded the frame. This is an occasional problem， I got some information from this blog :https://brainly.com/question/43026554.
Can you help to analyze the issue from mpp extension's point of view.

[h264_rkmpp @ 0x7fa4015560] Failed to get key input frame from packet meta: -1
malloc(): unaligned tcache chunk detected

MPP log:

orangepi5b mpp[79235]: mpp_mem_pool: mpp_mem_pool_put_f invalid mem pool ptr 0x7f7c003b48 node 0x7f7c003b20 check (nil)

Originally created by @lumiaJJ on GitHub (Aug 21, 2024). Hi, I am transcoding two streams with h264_rkmpp encoder. But I got an error when my program called av_hwframe_transfer_data before encoded the frame. This is an occasional problem， I got some information from this blog :https://brainly.com/question/43026554. Can you help to analyze the issue from mpp extension's point of view. ``` [h264_rkmpp @ 0x7fa4015560] Failed to get key input frame from packet meta: -1 malloc(): unaligned tcache chunk detected ``` MPP log: ``` orangepi5b mpp[79235]: mpp_mem_pool: mpp_mem_pool_put_f invalid mem pool ptr 0x7f7c003b48 node 0x7f7c003b20 check (nil) ```

backuprepo

2025-12-23 10:32:49 +01:00

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backuprepo commented

2025-12-23 10:32:51 +01:00

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@nyanmisaka commented on GitHub (Aug 21, 2024):

The MPP library itself contains some bugs. Use nyanmisaka/mpp instead.

@nyanmisaka commented on GitHub (Aug 21, 2024): The MPP library itself contains some bugs. Use [nyanmisaka/mpp](https://github.com/nyanmisaka/mpp/commits/jellyfin-mpp/) instead.

backuprepo commented

2025-12-23 10:32:51 +01:00

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@lumiaJJ commented on GitHub (Aug 21, 2024):

The MPP library itself contains some bugs. Use nyanmisaka/mpp instead.

nyanmisaka/mpp is already used to build MPP library, I will checked the version in my local tomorrow.

@lumiaJJ commented on GitHub (Aug 21, 2024): > The MPP library itself contains some bugs. Use [nyanmisaka/mpp](https://github.com/nyanmisaka/mpp/commits/jellyfin-mpp/) instead. [nyanmisaka/mpp](https://github.com/nyanmisaka/mpp/commits/jellyfin-mpp/) is already used to build MPP library, I will checked the version in my local tomorrow.

backuprepo commented

2025-12-23 10:32:52 +01:00

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@lumiaJJ commented on GitHub (Aug 22, 2024):

@nyanmisaka Hi, checked version of nyanmisaka/mpp in my local env. The lastest commit is 4ded78b9510145fa79bcd51beb1591450c872277 (grafted, HEAD -> jellyfin-mpp, origin/jellyfin-mpp) is same as remote's

@lumiaJJ commented on GitHub (Aug 22, 2024): @nyanmisaka Hi, checked version of [nyanmisaka/mpp](https://github.com/nyanmisaka/mpp/commits/jellyfin-mpp/) in my local env. The lastest commit is 4ded78b9510145fa79bcd51beb1591450c872277 (grafted, HEAD -> jellyfin-mpp, origin/jellyfin-mpp) is same as remote's

backuprepo commented

2025-12-23 10:32:52 +01:00

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@lumiaJJ commented on GitHub (Aug 22, 2024):

@nyanmisaka Hi, checked version of nyanmisaka/mpp in my local env. The lastest commit is 4ded78b9510145fa79bcd51beb1591450c872277 (grafted, HEAD -> jellyfin-mpp, origin/jellyfin-mpp) is same as remote's. Perhaps it might be a new issue

@lumiaJJ commented on GitHub (Aug 22, 2024): > @nyanmisaka Hi, checked version of [nyanmisaka/mpp](https://github.com/nyanmisaka/mpp/commits/jellyfin-mpp/) in my local env. The lastest commit is 4ded78b9510145fa79bcd51beb1591450c872277 (grafted, HEAD -> jellyfin-mpp, origin/jellyfin-mpp) is same as remote's. Perhaps it might be a new issue

backuprepo commented

2025-12-23 10:32:53 +01:00

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@nyanmisaka commented on GitHub (Aug 22, 2024):

I can't reproduce with the command described in the Wiki. https://github.com/nyanmisaka/ffmpeg-rockchip/wiki

Can you share a minimal code sample that can be compiled?

@nyanmisaka commented on GitHub (Aug 22, 2024): I can't reproduce with the command described in the Wiki. https://github.com/nyanmisaka/ffmpeg-rockchip/wiki Can you share a minimal code sample that can be compiled?

backuprepo commented

2025-12-23 10:32:53 +01:00

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@lumiaJJ commented on GitHub (Aug 22, 2024):

I can't reproduce with the command described in the Wiki. https://github.com/nyanmisaka/ffmpeg-rockchip/wiki

Can you share a minimal code sample that can be compiled?

Ok，I will provide it asap.

@lumiaJJ commented on GitHub (Aug 22, 2024): > I can't reproduce with the command described in the Wiki. https://github.com/nyanmisaka/ffmpeg-rockchip/wiki > > Can you share a minimal code sample that can be compiled? Ok，I will provide it asap.

backuprepo commented

2025-12-23 10:32:53 +01:00

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@lumiaJJ commented on GitHub (Aug 24, 2024):

https://github.com/nyanmisaka/ffmpeg-rockchip/pull/104 Hi, the issue might be related with this PR. You can enable MJPEG decoding to produced. And qsv_decode.c can be a a minimal code sample to test.

@lumiaJJ commented on GitHub (Aug 24, 2024): https://github.com/nyanmisaka/ffmpeg-rockchip/pull/104 Hi, the issue might be related with this PR. You can enable MJPEG decoding to produced. And qsv_decode.c can be a a minimal code sample to test.