1. This patch prepends SPS and PPS (from extradata) to each IDR frame in the H.264/HEVC stream to ensure the decoder has the necessary configuration for proper decoding.
2. Various other minor fixes, improving overall software stability and performance.
This patch ensures that SPS and PPS are prepended to every IDR frame in the H.264/HEVC stream.
🔹 Why this matters:
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SPS (Sequence Parameter Set) and PPS (Picture Parameter Set) provide the decoder with the necessary configuration (resolution, profile, level, reference frames, etc.).
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Without these parameters, some decoders may fail to properly display the video when joining a stream mid-session, after packet loss, or during reconnections.
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By including SPS/PPS with each IDR frame, the decoder always has the required information to correctly interpret the video data.
🔹 Benefits:
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Faster and more reliable stream startup (no black screen while waiting for configuration).
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Improved compatibility across different decoders, VMS platforms, and media players.
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Increased robustness in unstable network environments.
While this slightly increases stream overhead due to repeated SPS/PPS data, the trade-off results in much higher stability and compatibility.
👉 In short: every keyframe is now fully self-contained, ensuring smooth decoding in all scenarios.