PoseDetection/posedetection/ at c33ec7d6b3fe25c659d19dfb06abf513bc7a2e7e · nateholland.bsky.social/PoseDetection · Tangled

nateholland.bsky.social / PoseDetection

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PoseDetection / posedetection /

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virtualintern perf: replace MediaMetadataRetriever with MediaCodec sequential decoder 2mo ago

perf: replace MediaMetadataRetriever with MediaCodec sequential decoder Use a cached MediaCodec decoder for frame extraction instead of creating/destroying a MediaMetadataRetriever per frame. The decoder opens the video once and decodes frames sequentially, leveraging codec state across frames. Handles video rotation metadata. Reduces offline video analysis time from ~70s to ~31s (2.3x faster) on a 6-second test video. Also adds build time display to the sample app's frame analysis view for benchmarking. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2 months ago

build.gradle.kts

perf: replace MediaMetadataRetriever with MediaCodec sequential decoder Use a cached MediaCodec decoder for frame extraction instead of creating/destroying a MediaMetadataRetriever per frame. The decoder opens the video once and decodes frames sequentially, leveraging codec state across frames. Handles video rotation metadata. Reduces offline video analysis time from ~70s to ~31s (2.3x faster) on a 6-second test video. Also adds build time display to the sample app's frame analysis view for benchmarking. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2 months ago