Docker postprocessing script

[aTF6i]

Hi all

I've been trying to find out where to both put a postprocessing.sh script in docker and finding out how to process transcode my recordings

As far as I am aware, I need to turn off auto record and then stick it in /config/scripts

I'd like to process differently based on resolution - Can someone help me review?

Code:

#!/bin/bash
RECORDING_PATH="$1"
OUTPUT_PATH="$(dirname "$RECORDING_PATH")"

# Get video resolution
RESOLUTION=$(ffmpeg -i "$RECORDING_PATH" 2>&1 | grep -oP '(?<=, )\d+x\d+(?=,)' | head -1)

# Define output file path
OUTPUT_FILE="$OUTPUT_PATH/$(basename "${RECORDING_PATH%.*}").ts"
echo "OUTPUT FILE: $OUTPUT_FILE"

# Remove commercials
comskip "$RECORDING_PATH"

# Check resolution and apply different processing
if [[ "$RESOLUTION" == "1920x1080" ]]; then
    echo "Processing HD video"
    ffmpeg -i "$RECORDING_PATH" -c:v libx264 -preset ultrafast -crf 51 -c:a copy "$OUTPUT_FILE"
elif [[ "$RESOLUTION" == "1280x720" ]]; then
    echo "Processing 720p video"
    ffmpeg -i "$RECORDING_PATH" -c:v libx264 -preset ultrafast -crf 51 -c:a copy "$OUTPUT_FILE"
else
    echo "Processing SD video"
    ffmpeg -i "$RECORDING_PATH" -c:v libx264 -preset ultrafast -crf 51 -c:a copy "$OUTPUT_FILE"
fi

# Check if transcoding was successful
if [[ $? -eq 0 && -f "$OUTPUT_FILE" ]]; then
    echo "Transcoding successful, removing original file"
    rm "$RECORDING_PATH"
else
    echo "Transcoding failed, keeping original file"
fi

# Send notification
echo "Recording processed: $(basename "$RECORDING_PATH")"

[mvallevand]

I said I wouldn't help with scripts but this might help others too. For Docker and other Linux you would need to install jq and it is useful for scripting and easier than regex.

Code:

ffprobe -v panic -print_format json -show_format -show_streams -select_streams v /media/recordings/Samples/BakeOff.ts | jq -r '.streams[0].width'  returns 1080

for the sample you gave yesterday. this is the output

Code:

{
    "streams": [
        {
            "index": 0,
            "codec_name": "h264",
            "codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
            "profile": "High",
            "codec_type": "video",
            "codec_tag_string": "[27][0][0][0]",
            "codec_tag": "0x001b",
            "width": 1920,
            "height": 1080,
            "coded_width": 1920,
            "coded_height": 1080,
            "closed_captions": 0,
            "film_grain": 0,
            "has_b_frames": 3,
            "sample_aspect_ratio": "1:1",
            "display_aspect_ratio": "16:9",
            "pix_fmt": "yuv420p",
            "level": 40,
            "color_range": "tv",
            "color_space": "bt709",
            "color_transfer": "bt709",
            "color_primaries": "bt709",
            "chroma_location": "left",
            "field_order": "progressive",
            "refs": 1,
            "is_avc": "false",
            "nal_length_size": "0",
            "ts_id": "1",
            "ts_packetsize": "188",
            "id": "0x100",
            "r_frame_rate": "25/1",
            "avg_frame_rate": "25/1",
            "time_base": "1/90000",
            "start_pts": 152234,
            "start_time": "1.691489",
            "duration_ts": 2257200,
            "duration": "25.080000",
            "bits_per_raw_sample": "8",
            "extradata_size": 51,
            "disposition": {
                "default": 0,
                "dub": 0,
                "original": 0,
                "comment": 0,
                "lyrics": 0,
                "karaoke": 0,
                "forced": 0,
                "hearing_impaired": 0,
                "visual_impaired": 0,
                "clean_effects": 0,
                "attached_pic": 0,
                "timed_thumbnails": 0,
                "non_diegetic": 0,
                "captions": 0,
                "descriptions": 0,
                "metadata": 0,
                "dependent": 0,
                "still_image": 0,
                "multilayer": 0
            }
        }
    ],
    "format": {
        "filename": "BakeOff.ts",
        "nb_streams": 2,
        "nb_programs": 1,
        "nb_stream_groups": 0,
        "format_name": "mpegts",
        "format_long_name": "MPEG-TS (MPEG-2 Transport Stream)",
        "start_time": "1.408000",
        "duration": "25.363489",
        "size": "11231308",
        "bit_rate": "3542511",
        "probe_score": 50
    }
}

Martin

[aTF6i]

That does look easier to read than the regex - I must admit - Copilot has been helping

[mvallevand]

If you want less fancy without jq

ffprobe -v panic -select_streams v:0 -show_entries stream=width BakeOff.ts

Martin

[aTF6i]

I guess I'll stick it in that folder and see if it does anything

[aTF6i]

Are you aware of if the /config/scripts/postprocessing.sh is correct location/filename ?

I have chmod+x, also as stated in the other post



...Just checking the logs . I can see no reference to it running

Auto transcode is also off

[mvallevand]

Deja vu https://forums.nextpvr.com/showthread.php?tid=65873 Linux is case sensitive,

Martin

[aTF6i]

Yeah - I tried that already.

Don't think it is that - I've managed to get it once. Could be only triggering on fully completed recordings (not cancelled) - I'll post once I'm sure

[mvallevand]

Right the script page on the wiki talks about PostCancel sh and bat.

Martin

[aTF6i]

Aha - That would make sense.

Still testing - That will certainly help!