Scripts to process video files

Preparing dataset

Generating YUV videos

The following script takes videos from an input directory ORIG_DIR in whatever size and format and converts them into 1080p videos saved in their 420p RAW YUV format into the directory YUV_DIR which is then used by the rest of the pipeline

mkdir -p YUV_DIR
./generate_base_videos.sh ORIG_DIR YUV_DIR

Downsampling and resizing videos

The following command takes the YUV files generated above and uses area-based downsampling to convert it to 480p videos which are saved in the directory RESIZE_DIR. The input directory ORIG_DIR must be supplied because the original (pre-YUV) files are needed to extract fps information.

mkdir -p RESIZE_DIR
./resize.sh YUV_DIR RESIZE_DIR ORIG_DIR

Generating H.264/H.265 baselines

The following command takes the YUV files generated above and reencodes it at the same 1080p size at different Compression Rate Factors (CRFs) using the standard H.264 and H.265 codecs to generate comparison points for PSNR vs. bits-per-pixel values. The reencoded videos are saved in the directory REENCODE_DIR. The input directory ORIG_DIR must be supplied because the original (pre-YUV) files are needed to extract fps information.

mkdir -p REENCODE_DIR
./resize.sh YUV_DIR REENCODE_DIR ORIG_DIR