Update cuda_decoder_impl.cc

[zhuipiaochen]

When the video format changes, reinitialize the decoder and continue to decode

[zhuipiaochen]

ok

[zhuipiaochen]

ok

[GadiZimerman]

@CodiumAI-Agent /review

[CodiumAI-Agent]

PR Analysis

• 🎯 Main theme: Handling dynamic video format changes in CUDA video decoder
• 📝 PR summary: This PR modifies the Initialize function in cuda_decoder_impl.cc to handle dynamic video format changes. Instead of stopping the decoding process when the video format changes, the decoder is now reinitialized and continues to decode.
• 📌 Type of PR: Enhancement
• 🧪 Relevant tests added: No
• ⏱️ Estimated effort to review [1-5]: 2, because the changes are localized to a single function and the logic is straightforward.
• 🔒 Security concerns: No security concerns found

PR Feedback

💡 General suggestions: The PR is generally well done, but it would be beneficial to add error handling after the cuvidDestroyDecoder call. Also, it would be helpful to include tests that simulate dynamic video format changes to ensure the new functionality works as expected.

🤖 Code feedback:

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relevant file	src/video/nvcodec/cuda_decoder_impl.cc
suggestion	Add error handling after the cuvidDestroyDecoder call. If the decoder fails to be destroyed, it could lead to memory leaks or other unexpected behavior. [important]
relevant line	CHECK_CUDA_CALL(cuvidDestroyDecoder(decoder_));

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relevant file	src/video/nvcodec/cuda_decoder_impl.cc
suggestion	Consider logging more information about the new format when a dynamic video format change is encountered. This could help with debugging if issues arise in the future. [medium]
relevant line	std::cerr << "Encountered a dynamic video format change.\n";

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