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What is the meaning of these error logs from the sample transcodeVq.exe?

Question asked by brooks on May 23, 2015
Latest reply on Jun 1, 2015 by brooks

Hi, fellow,

     I got the following output and error logs when I tried the Media SDK sample transcodeVq.exe


C:\Users\Administrator\AMD Media SDK\1.1\samples\mediaFoundation\transcodeVq\bin\x86\Debug_vs10>transcodeVq.exe -i a.avi -o a.asf -c config.cfg -l 1

Reading user-specified configuration file: config.cfg

Initialization successful


WARNING: HW decoder not found, Using SW decoder.!!!

Failed to build/load topology




See the generated TranscodeVqErrorlog.txt file for more details.



I've got 2 questions,

1. Why 'HW decoder not found'? I am sure that I had downloaded and installed the latest driver for the card AMD HD7750. Isn't that so-called decoder inside driver?

2.What does it mean by 'Failed to build/load topology'? What is the topology? Is it relevant to this sample?


In the error file, TranscodeVqErrorlog.txt, I've only got one line, saying


Failed to intantiate topology @ C:\Users\Administrator\AMD Media SDK\1.1\samples\mediaFoundation\transcodeVq\inc\TranscodeVqApi.h 149


So poor the information it gives!


Could anyone help me out?




Brooks Li.