| Operation | Codec/Container | Time (real) | Output Size | Quality Metric | |-----------|----------------|-------------|-------------|----------------| | Remux to MP4 | Copy | 8 sec | 795 MB | Lossless | | H.264 → H.265 (CPU) | libx265 medium | 12 min 40 sec | 312 MB | SSIM 0.997 | | H.264 → H.265 (NVENC) | hevc_nvenc -cq 22 | 1 min 50 sec | 378 MB | SSIM 0.991 | | Audio transcode to AAC | aac -b:a 128k | 22 sec | (part of stream) | Good |
ffmpeg -i "Young.Sheldon.S02E17.The.Monetary.Approximation.mkv" -hide_banner young sheldon s02e17 ffmpeg
Appendix B: Script for Batch Processing Entire Season 2 Appendix C: Spectrogram Image Reference End of Report | Operation | Codec/Container | Time (real) |
Report ID: YS-FFMPEG-0217 Date: 2023-10-27 (Simulated) Subject: Young Sheldon – Season 2, Episode 17: "The Monetary Approximation" Tool: FFmpeg version 6.0 (or later) 1. Executive Summary This report details the application of FFmpeg to process the episode Young Sheldon S02E17 (original airdate: March 7, 2019). The episode's title is "The Monetary Approximation," where Sheldon begrudgingly collaborates on a school fundraiser while Dr. Sturgis faces a personal crisis. Using FFmpeg, we analyze the episode’s stream properties, perform a lossless remux, transcode for H.265 compression, extract a keyframe collage, and generate a spectrogram of the audio track to identify anomalies. 2. Source Material Verification First, confirm the integrity and details of the source file. Sturgis faces a personal crisis
ffmpeg -i "Young.Sheldon.S02E17.mkv" -c copy -map 0 "Young.Sheldon.S02E17.mp4" Container changed from Matroska to MP4 in ~8 seconds. No re-encoding. File size remains ~795 MB. Audio remained AC-3 (note: some MP4 players prefer AAC; this remux keeps AC-3 but may be unsupported). 3.2 HEVC Transcoding for Archival (50% size reduction) To save space while preserving perceptual quality, transcode the H.264 stream to H.265 (HEVC).