Reference: https://www.bluebill.net/timestamps.html
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Fixing GoPro Video Creation Time
Install Pre-Requisits
Install ffmpeg, coreutils and jq.Check Creation Time
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./correctTime.sh DIVE_2_1_GH010089.MP4
DIVE_2_1_GH010089.MP4
Video Create Time (Zulu): 2023-06-13T19:12:11.000000Z
Video Create Time (local): 2023-06-13T15:12:11 -0400 (EDT)
--------
Video Create Time (without timezone):2023-06-13T19:12:11
Video Create Time (to local):2023-06-13T19:12:11 -0400 (EDT)
--------
Video Create Time (to UTC):2023-06-13T23:12:11.000000Z
To update the metadata use --update
|
In the above output we see that the local time was recorded as Zulu time. The local time was 19:12:11.
Fix Creation Time
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./correctTime.sh DIVE_2_1_GH010089.MP4 --update |
Verify Creation Time
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./correctTime.sh DIVE_2_1_GH010089.corrected.MP4
DIVE_2_1_GH010089.corrected.MP4
Video Create Time (Zulu): 2023-06-13T23:12:11.000000Z
Video Create Time (local): 2023-06-13T19:12:11 -0400 (EDT)
--------
Video Create Time (without timezone):2023-06-13T23:12:11
Video Create Time (to local):2023-06-13T23:12:11 -0400 (EDT)
--------
Video Create Time (to UTC):2023-06-14T03:12:11.000000Z
To update the metadata use --update |
Command to Update Creation Time:
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ffmpeg -I <MOVIE> -c copy -metadata creation_time=2023-06-13-23:12:11.000000Z <OUTPUT> |
Add Timestamp to Video
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./timestamp.sh DIVE_2_1_GH010089.corrected.MP4 |
Changes to the timestamp.sh script:
- Removed -vcodec libx265
- Changed location of timestamp to top right corner
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...
#ffmpeg -i "${INPUT}" -vf drawtext="fontsize=30:fontcolor=yellow:text='%{pts\:localtime\:${EPOCH}}':x=(w-text_w) - 10:y=(h-text_h) - 10" -vcodec libx265 -crf 28 "${OUTPUT}"
ffmpeg -i "${INPUT}" -vf drawtext="fontsize=30:fontcolor=white:text='%{pts\:localtime\:${EPOCH}}':x=(w-text_w) - 10:y=10" -crf 28 "${OUTPUT}"
... |
Joining Video Files
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echo file DIVE_2_1_GH010089.corrected.MP4 > mylist.txt
echo file DIVE_2_2_GH020089.corrected.MP4 >> mylist.txt
ffmpeg -f concat -i mylist.txt -c copy output.mp4 |
Get Video File Information
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ffprobe -loglevel 0 -print_format json -show_format -show_streams "${INPUT}" | jq -r .format.tags.creation_time |
brew install ffmpeg
brew install coreutils
brew install jq |
Revise Scripts
Using the scripts from https://www.bluebill.net/timestamps.html
Revise timestamp.sh and correctTime.sh to use 'gdate' instead of 'date'.
See below for revised scripts.
Fixing GoPro Video Creation Time
Check Creation Time
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./correctTime.sh DIVE_2_1_GH010089.MP4
DIVE_2_1_GH010089.MP4
Video Create Time (Zulu): 2023-06-13T19:12:11.000000Z
Video Create Time (local): 2023-06-13T15:12:11 -0400 (EDT)
--------
Video Create Time (without timezone):2023-06-13T19:12:11
Video Create Time (to local):2023-06-13T19:12:11 -0400 (EDT)
--------
Video Create Time (to UTC):2023-06-13T23:12:11.000000Z
To update the metadata use --update
|
In the above output we see that the local time was recorded as Zulu time. The local time was 19:12:11.
Fix Creation Time
Code Block |
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./correctTime.sh DIVE_2_1_GH010089.MP4 --update |
Verify Creation Time
Code Block |
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./correctTime.sh DIVE_2_1_GH010089.corrected.MP4
DIVE_2_1_GH010089.corrected.MP4
Video Create Time (Zulu): 2023-06-13T23:12:11.000000Z
Video Create Time (local): 2023-06-13T19:12:11 -0400 (EDT)
--------
Video Create Time (without timezone):2023-06-13T23:12:11
Video Create Time (to local):2023-06-13T23:12:11 -0400 (EDT)
--------
Video Create Time (to UTC):2023-06-14T03:12:11.000000Z
To update the metadata use --update |
Command to Update Creation Time:
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ffmpeg -I <MOVIE> -c copy -metadata creation_time=2023-06-13-23:12:11.000000Z <OUTPUT> |
Add Timestamp to Video
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./timestamp.sh DIVE_2_1_GH010089.corrected.MP4 |
Changes to the timestamp.sh script:
- Removed -vcodec libx265
- Changed location of timestamp to top right corner
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...
#ffmpeg -i "${INPUT}" -vf drawtext="fontsize=30:fontcolor=yellow:text='%{pts\:localtime\:${EPOCH}}':x=(w-text_w) - 10:y=(h-text_h) - 10" -vcodec libx265 -crf 28 "${OUTPUT}"
ffmpeg -i "${INPUT}" -vf drawtext="fontsize=30:fontcolor=white:text='%{pts\:localtime\:${EPOCH}}':x=(w-text_w) - 10:y=10" -crf 28 "${OUTPUT}"
... |
Joining Video Files
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echo file DIVE_2_1_GH010089.corrected.MP4 > mylist.txt
echo file DIVE_2_2_GH020089.corrected.MP4 >> mylist.txt
ffmpeg -f concat -i mylist.txt -c copy output.mp4 |
Get Video File Information
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ffprobe -loglevel 0 -print_format json -show_format -show_streams "${INPUT}" | jq -r .format.tags.creation_time |
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{
"streams": [
{
|
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{ "streams": [ { "index": 0, "codec_name": "aac", "codec_long_name": "AAC (Advanced Audio Coding)", "profile": "LC", "codec_type": "audio", "codec_time_base": "1/48000", "codec_tag_string": "mp4a", "codec_tag": "0x6134706d", "sample_fmt": "fltp", "sample_rate": "48000", "channels": 2, "channel_layout": "stereo", "bits_per_sample": 0, "r_frame_rate": "0/0", "avg_frame_rate": "0/0", "time_base": "1/48000", "start_pts": 0, "start_time": "0.000000", "duration_ts": 35213578, "duration": "733.616208", "bit_rate": "119736", "max_bit_rate": "128000", "nb_frames": "34391", "disposition": { "default": 1, "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 }, "tags": { "creation_time": "2023-07-16T15:22:49.000000Z", "language": "eng", "handler_name": "Core Media Audio" } }, { "index": 1, "codec_name": "h264", "codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10", "profile": "High", "codec_type": "video", "codec_time_base": "1001/120000", "codec_tag_string": "avc1", "codec_tag": "0x31637661", "width": 1280, "height": 720, "coded_width": 1280, "coded_height": 720, "has_b_frames": 0, "sample_aspect_ratio": "1:1", "display_aspect_ratio": "16:9", "pix_fmt": "yuv420p", "level": 32, "color_range": "tv", "color_space": "bt709", "color_transfer": "bt709", "color_primaries": "bt709", "chroma_location": "left", "field_order": "progressive", "refs": 1, "is_avc": "true", "nal_length_size": "4", "r_frame_rate": "60000/1001", "avg_frame_rate": "60000/1001", "time_base": "1/60000", "start_pts": 0, "start_time": "0.000000", "duration_ts": 44016973, "duration": "733.616217", "bit_rate": "8069838", "bits_per_raw_sample": "8", "nb_frames": "43973", "disposition": { "default": 1, "dub": 0, "original": 0, "comment": 0, "lyrics": 0, "karaoke": 0, "forced": 0, "hearing_impaired": 0, "visual_impaired": 0, "clean_effects": 0, "attached_picindex": 0, "timedcodec_thumbnailsname": 0 }"aac", "tagscodec_long_name": { "AAC (Advanced Audio Coding)", "creation_timeprofile": "2023-07-16T15:22:49.000000ZLC", "languagecodec_type": "undaudio", "handler_name"codec_time_base": "Core Media Video" } 1/48000", } ]"codec_tag_string": "mp4a", "format": { "filenamecodec_tag": "Dive2.mp40x6134706d", "nbsample_streamsfmt": 2"fltp", "nbsample_programsrate": 0"48000", "format_name": "mov,mp4,m4a,3gp,3g2,mj2" "channels": 2, "formatchannel_long_namelayout": "QuickTime / MOVstereo", "start_time "bits_per_sample": "0.000000", "durationr_frame_rate": "733.6162170/0", "size "avg_frame_rate": "751679577", 0/0", "bittime_ratebase": "81969781/48000", "probestart_scorepts": 1000, "tagsstart_time": {"0.000000", "majorduration_brandts": "mp42"35213578, "minor_versionduration": "1733.616208", "compatiblebit_brandsrate": "isommp41mp42119736", "creationmax_bit_timerate": "2023-07-16T15:22:49.000000Z"128000", } } } |
Scripts
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#!/usr/bin/env bash # ----------- # SPDX-License-Identifier: MIT # Copyright (c) 2022 Troy Williams # uuid"nb_frames": "34391", = 70204dea-f8b9-11ec-a408-cbfc46763958 # author"disposition": { = Troy Williams # email = troy.williams@bluebill.net # date"default": 1, = 2022-06-30 # ----------- # this script will add timestamps (like security cameras) to the bottom left # corner of the video. It will use the creation date as the starting point of # the timestamp counter. The output video will be re-encoded to h265 format. # NOTE: Some videos indicate they are in UTC, but in fact are not.They will need # be correct otherwise the timestamp will be incorrect. # NOTE: If the creation_time isn't set, the video will be skipped. # Usage: # $ ./timestamp.sh 20210613_191928.mp4 # loop through files in a folder: # $ for FILE in ./2022-06-28/*; do ./timestamp.sh "${FILE}"; done # $ for FILE in ./2022-06-28/*; do ./timestamp.sh "${FILE}" --over-write; done # Requirements: # JSON parser: $ sudo apt install jq # References # https://www.cyberciti.biz/faq/unix-linux-bsd-appleosx-bash-assign-variable-command-output/ # https://stackoverflow.com/questions/1955505/parsing-json-with-unix-tools # https://www.baeldung.com/linux/use-command-line-arguments-in-bash-script # https://stackoverflow.com/a/965069 # https://www.howtogeek.com/529219/how-to-parse-json-files-on-the-linux-command-line-with-jq/ # https://cameronnokes.com/blog/working-with-json-in-bash-using-jq/ # https://stackoverflow.com/questions/965053/extract-filename-and-extension-in-bash # https://ourcodeworld.com/articles/read/1484/how-to-get-the-information-and-metadata-of-a-media-file-audio-or-video-in-json-format-with-ffprobe # ffprobe -loglevel 0 -print_format json -show_format -show_streams GX013438.MP4 # ---------------- # Set the script to halt on errors set -e if [[ -z "$1" ]]; then echo "USAGE: $ 1./timestamp.sh video.mp4" exit 1 fi # Get the movie name # MOVIE=${1} # What is the full path of the movie name? INPUT=$(readlink -f "$1") # Strip longest match of */ from start filename="${INPUT##*/}" # Substring from 0 thru pos of filename dir="${INPUT:0:${#INPUT} - ${#filename}}" # Strip shortest match of . plus at least one non-dot char from end base="${filename%.[^.]*}" # Substring from len of base thru end ext="${filename:${#base} + 1}" # If we have an extension and no base, it's really the base if [[ -z "$base" && -n "$ext" ]]; then base=".$ext" ext="" fi # Create the new file name OUTPUT="${dir}"/"${base}".stamped."${ext}" # ---------- # Debugging Code # echo "MOVIE = ${MOVIE}" # echo "INPUT = ${INPUT}" # echo "filename = ${filename}" # echo "dir = ${dir}" # echo "base = ${base}" # echo "ext = ${ext}" # echo "OUTPUT = ${OUTPUT}" # ---------- # need to use raw mode `-r` in jq call to return a raw string otherwise it will # be trouble to deal with STARTDATE=$(ffprobe -loglevel 0 -print_format json -show_format -show_streams "${INPUT}" | jq -r .format.tags.creation_time) if [[ -z "${STARTDATE}" ]]; then echo "ERROR - No creation_time in metadata! ${INPUT}" exit 1 fi # Convert the date to EPOCH. This will be used to set the time for the draw text # method. EPOCH=$(date --date="${STARTDATE}" +%s) echo "Video Create Time: ${STARTDATE} (${EPOCH})" # we assume that the STARTDATE is in UTC 0000, Zulu time, GMT and that we want # to convert it to the local time on the computer. ffmpeg -i "${INPUT}" -vf drawtext="fontsize=30:fontcolor=yellow:text='%{pts\:localtime\:${EPOCH}}':x=(w-text_w) - 10:y=(h-text_h) - 10" -vcodec libx265 -crf 28 "${OUTPUT}" if [ "${3:-"invalid"}" == "--over-write" ]; then echo "Moving ${OUTPUT} -> ${INPUT}" mv "${OUTPUT}" "${INPUT}" else echo "To overwrite the existing video, use --over-write" fi | ||||||
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"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
},
"tags": {
"creation_time": "2023-07-16T15:22:49.000000Z",
"language": "eng",
"handler_name": "Core Media Audio"
}
},
{
"index": 1,
"codec_name": "h264",
"codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
"profile": "High",
"codec_type": "video",
"codec_time_base": "1001/120000",
"codec_tag_string": "avc1",
"codec_tag": "0x31637661",
"width": 1280,
"height": 720,
"coded_width": 1280,
"coded_height": 720,
"has_b_frames": 0,
"sample_aspect_ratio": "1:1",
"display_aspect_ratio": "16:9",
"pix_fmt": "yuv420p",
"level": 32,
"color_range": "tv",
"color_space": "bt709",
"color_transfer": "bt709",
"color_primaries": "bt709",
"chroma_location": "left",
"field_order": "progressive",
"refs": 1,
"is_avc": "true",
"nal_length_size": "4",
"r_frame_rate": "60000/1001",
"avg_frame_rate": "60000/1001",
"time_base": "1/60000",
"start_pts": 0,
"start_time": "0.000000",
"duration_ts": 44016973,
"duration": "733.616217",
"bit_rate": "8069838",
"bits_per_raw_sample": "8",
"nb_frames": "43973",
"disposition": {
"default": 1,
"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
},
"tags": {
"creation_time": "2023-07-16T15:22:49.000000Z",
"language": "und",
"handler_name": "Core Media Video"
}
}
],
"format": {
"filename": "Dive2.mp4",
"nb_streams": 2,
"nb_programs": 0,
"format_name": "mov,mp4,m4a,3gp,3g2,mj2",
"format_long_name": "QuickTime / MOV",
"start_time": "0.000000",
"duration": "733.616217",
"size": "751679577",
"bit_rate": "8196978",
"probe_score": 100,
"tags": {
"major_brand": "mp42",
"minor_version": "1",
"compatible_brands": "isommp41mp42",
"creation_time": "2023-07-16T15:22:49.000000Z"
}
}
} |
Scripts
Script | Description |
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This script extracts the creation_time , removes the timezone and assigns the local timezone. It then converts this back to UTC and write it back to the video. This fixes issue with GoPro Videos. | |
Adds Timestamp in the top right hand corner of the video. |