| 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 |
If you want to save the scene where Sheldon first picks up the violin, you can use the -ss (start time) and -to (end time) flags. young sheldon s02e17 ffmpeg
To capture a high-quality still of a specific moment, such as Mary and Meemaw at the pharmacy: | Operation | Codec/Container | Time (real) |