Blog
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Time Complexity Optimization Checklist for Coding Interviews
Reduce time complexity in coding interviews: patterns to convert O(N²) to O(N log N), eliminate duplicate calculations, and data structure selection.
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Two Pointers Pattern | From O(n²) to O(n) in Arrays
Two pointers algorithm pattern: sorted array pair sums, deduplication, three-sum, and container-with-water—Python examples and complexity notes for codi...
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AAC Audio Codec: Complete Guide | LC-AAC
AAC profiles (LC-AAC, HE-AAC), MPEG-4 containers, FFmpeg encoding for streaming and mobile—bitrate tiers, sample rates, and practical quality tradeoffs.
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MP3 Audio Codec in Practice | LAME· CBR
MP3 history and MPEG-1 Layer III, LAME-based CBR and VBR, FFmpeg examples—balance quality and size when compatibility comes first.
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Opus Audio Codec Next-Generation Standard | WebRTC
IETF standard Opus: voice/music modes, SILK/CELT hybrid, low-latency real-time communication, and FFmpeg encoding.
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Opus Audio Codec: Next-Gen Standard | WebRTC
IETF Opus: speech and music modes, SILK and CELT hybrid, realtime WebRTC, and FFmpeg encoding—royalty-friendly audio for voice, games, and the web.
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MKV (Matroska) in Practice | EBML
EBML-based Matroska (MKV): Segment and Cluster layout, multiple audio and subtitle tracks, chapters, and FFmpeg workflows for archives and delivery.
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MP4 Container: Complete Guide | ISO BMFF· moov
ISO BMFF MP4: ftyp, moov, mdat, faststart, fragmented MP4 for HLS and DASH—FFmpeg remux, tags, and streaming operations in one practical guide.
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WebM Container for the Web | VP9, AV1, Opus, HTML5 & FFmpeg
Matroska-based WebM: allowed codecs, browser support, VP9 and AV1 with Opus, FFmpeg mux, and streaming tips—introductory web delivery guide.
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Complete Guide to C++ Adapter Pattern | Interface Conversion and Compatibility
A complete guide to the Adapter Pattern. Interface conversion, class adapter vs object adapter, and legacy code integration.