VDEC Failure Due to Incorrect Input Streams

Symptom

If video decoding fails, the following exception information is recorded in the log. The log information varies according to the version.

Log message: Invalid width or height

[HiDvpp][A618] [Vfmw] vdec_drv_check_video_wh [Line]:127 device 0 chn 0 type(255) pic size(32x32) is out of range[128,128]x[4096,4096].

[ERROR] DVPP:2020-12-31-20:50:51.318.218 [VDEC][IsValidResolution:639][T56] Invalid width or height, valid range (w:128~4096) (h:128~4096), current width = 32, height = 32, realWidth = 18, realHeight = 18
[ERROR] DVPP:2020-12-31-20:50:51.318.365 [VDEC][upgrade_picture_info_in_detail:679][T56] check condition: ret == OMX_ErrorNone fail
[ERROR] DVPP:2020-12-31-20:50:51.318.429 [VDEC][EventHandLer:386][T56] Dynamic Resources Unavailable now
[ERROR] DVPP:2020-12-31-20:50:51.368.106 [VDEC][handle_release_instance:1352][T56] wait Component Exit Message Thread

Log message: bit_depth_luma(*) not equal *

[HiDvpp][A618] [Vfmw] process_sps [Line]:8994 bit_depth_luma(%d) not equal 8.
[HiDvpp][A618] [Vfmw] hevc_process_sps [Line]:1462 chn 0, bit_depth_luma(9) is not supported, hevc only support 8 or 10 bit depth.

[ERROR] DVPP(13757,dvpp_performance):2020-12-31-21:18:26.998.657 [VDEC][ProcessSPS:9055][T26] bit_depth_luma(10) not equal 8.
[ERROR] DVPP(13757,dvpp_performance):2020-12-31-21:18:26.998.763 [VDEC][ProcessSPS:9070][T26] bit_depth_chroma(10) not equal 8.

Possible Cause

According to the preceding log analysis, the input stream specifications may not meet the software and hardware restrictions.

Solution

Use a third-party tool (such as eseye u) to check the input streams based on the VDEC function restrictions in section "ACL API Reference > Media Data Processing V1" or "ACL API Reference > Media Data Processing V2" in Application Development (C&C++), check whether the stream type, width, and height meet the requirements. If no, replace the stream as required.

Parent topic: JPEGD and VDEC