Package: ffmpeg-bitrate-stats
FFmpeg Bitrate StatsSimple script for calculating bitrate statistics using FFmpeg.Author: Werner Robitzawerner.robitza@gmail.comNote:Previous versions installed affmpeg_bitrate_statsexecutable. To harmonize it with other tools, now the executable is calledffmpeg-bitrate-stats. Please ensure you remove the old executable (e.g. runwhich ffmpeg_bitrate_statsand remove the file).Contents:RequirementsInstallationUsageOutputPlottingAPILicenseRequirementsPython 3.8 or higherFFmpeg:download a static build fromtheir websiteput theffprobeexecutable in your$PATHInstallationpip3installffmpeg_bitrate_statsOr clone this repository, then run the tool withpython -m ffmpeg_bitrate_statsUsageThe script outputs a bunch of bitrate statistics, including aggregations for pre-defined windows. These windows can either be time-based or GOP-based (for video streams). When choosing a time-based window, you can specify the size of the chunks in seconds.Output is to STDOUT so you can redirect that to a file or another script.Seeffmpeg-bitrate-stats -h:usage: __main__.py [-h] [-n] [-v] [-s {video,audio}] [-a {time,gop}]
                   [-c CHUNK_SIZE] [-rs READ_START] [-rd READ_DURATION]
                   [-of {json,csv}] [-p] [-pw PLOT_WIDTH] [-ph PLOT_HEIGHT]
                   input

ffmpeg_bitrate_stats v1.0.2

positional arguments:
  input                 input file

options:
  -h, --help            show this help message and exit
  -n, --dry-run         Do not run command, just show what would be done
                        (default: False)
  -v, --verbose         Show verbose output (default: False)
  -s {video,audio}, --stream-type {video,audio}
                        Stream type to analyze (default: video)
  -a {time,gop}, --aggregation {time,gop}
                        Window for aggregating statistics, either time-based
                        (per-second) or per GOP (default: time)
  -c CHUNK_SIZE, --chunk-size CHUNK_SIZE
                        Custom aggregation window size in seconds (default:
                        1.0)
  -rs READ_START, --read-start READ_START
                        Time to wait before sampling video (in HH:MM:SS.msec
                        or seconds) (default: None)
  -rd READ_DURATION, --read-duration READ_DURATION
                        Duration for sampling stream (in HH:MM:SS.msec or
                        seconds). Note that seeking is not accurate, see
                        ffprobe documentation on '-read_intervals'. (default:
                        None)
  -of {json,csv}, --output-format {json,csv}
                        output in which format (default: json)
  -p, --plot            Plot the bitrate over time (to STDERR) (default:
                        False)
  -pw PLOT_WIDTH, --plot-width PLOT_WIDTH
                        Plot width (default: 70)
  -ph PLOT_HEIGHT, --plot-height PLOT_HEIGHT
                        Plot height (default: 18)OutputThe output can be JSON, which includes individual fields for each chunk, or CSV, which repeats each line for each chunk. The CSV adheres to the “tidy” data concept, so it's a little redundant.Rates are given in kilobit per second, using SI prefixes (i.e., kilo = 1000).Explanation of the fields:input_file: Path to the input filestream_type: Type of stream used (video, audio)avg_fps: Average FPS (number of frames divided by duration)num_frames: Number of framesavg_bitrate: Average bitrateavg_bitrate_over_chunks: Average bitrate calculated over the chunksmax_bitrate: Maximum bitrate calculated over the chunksmin_bitrate: Minimum bitrate calculated over the chunksmax_bitrate_factor: Relation between peak and averagebitrate_per_chunk: Individual bitrates for each chunkaggregation: Type of aggregation usedchunk_size: Size of the chunk (when aggregation is "time")duration: Total duration of the stream. It is the sum of all frame durations, where each frame's duration is either based onduration_timefield in ffmpeg, or the difference between the current and previous frame's PTS.JSON example:ffmpeg-bitrate-stats-atime-c30-ofjsonBigBuckBunny.mp4This returns:{"input_file":"BigBuckBunny.mp4","stream_type":"video","avg_fps":60.002,"num_frames":38072,"avg_bitrate":8002.859,"avg_bitrate_over_chunks":7849.263,"max_bitrate":14565.117,"min_bitrate":3876.533,"max_bitrate_factor":1.82,"bitrate_per_chunk":[8960.89,8036.678,6099.959,4247.879,7276.979,5738.383,7740.339,7881.705,7572.594,8387.719,9634.343,9939.488,9365.104,5061.071,14565.117,9725.483,4573.873,7765.041,9796.135,12524.024,3876.533,3914.455],"aggregation":"time","chunk_size":30.0,"duration":634.517}CSV example:➜  ffmpeg-bitrate-stats -a time -c 30 -of csv BigBuckBunny.mp4
input_file,chunk_index,stream_type,avg_fps,num_frames,avg_bitrate,avg_bitrate_over_chunks,max_bitrate,min_bitrate,max_bitrate_factor,bitrate_per_chunk,aggregation,chunk_size,duration
BigBuckBunny.mp4,0,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,8960.89,time,30.0,634.517
BigBuckBunny.mp4,1,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,8036.678,time,30.0,634.517
BigBuckBunny.mp4,2,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,6099.959,time,30.0,634.517
BigBuckBunny.mp4,3,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,4247.879,time,30.0,634.517
BigBuckBunny.mp4,4,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,7276.979,time,30.0,634.517
BigBuckBunny.mp4,5,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,5738.383,time,30.0,634.517
BigBuckBunny.mp4,6,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,7740.339,time,30.0,634.517
BigBuckBunny.mp4,7,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,7881.705,time,30.0,634.517
BigBuckBunny.mp4,8,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,7572.594,time,30.0,634.517
BigBuckBunny.mp4,9,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,8387.719,time,30.0,634.517
BigBuckBunny.mp4,10,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,9634.343,time,30.0,634.517
BigBuckBunny.mp4,11,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,9939.488,time,30.0,634.517
BigBuckBunny.mp4,12,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,9365.104,time,30.0,634.517
BigBuckBunny.mp4,13,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,5061.071,time,30.0,634.517
BigBuckBunny.mp4,14,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,14565.117,time,30.0,634.517
BigBuckBunny.mp4,15,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,9725.483,time,30.0,634.517
BigBuckBunny.mp4,16,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,4573.873,time,30.0,634.517
BigBuckBunny.mp4,17,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,7765.041,time,30.0,634.517
BigBuckBunny.mp4,18,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,9796.135,time,30.0,634.517
BigBuckBunny.mp4,19,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,12524.024,time,30.0,634.517
BigBuckBunny.mp4,20,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,3876.533,time,30.0,634.517
BigBuckBunny.mp4,21,video,60.002,38072,8002.859,7849.263,14565.117,3876.533,1.82,3914.455,time,30.0,634.517PlottingTo enable plots, pass the-por--plotflag. This will plot the bitrate over time to STDERR. You can redirect this to a file, or pipe it to another program. Or you can disable STDOUT output with>/dev/nullto only see the plot:ffmpeg-bitrate-stats-atime-c30-pBigBuckBunny.mp4>/dev/nullThis might output a plot like this:7474.000 |6975.733 | ⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡎⡆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀6477.467 | ⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢰⠁⢱⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀5979.200 | ⡇⠀⠀⠀⠀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡎⠀⠈⡆⠀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⡄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀5480.933 | ⡧⡀⠀⠀⢰⢱⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢰⠁⠀⠀⠱⠊⠱⡀⠀⠀⠀⠀⢀⠤⡀⠀⠀⠀⠀⠀⠀⢀⡄⠀⠀⢠⠊⠈⡆⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀4982.667 | ⡇⠈⢆⠀⡜⠀⢣⠀⠀⠀⠀⠀⠀⡠⠒⠙⡄⠀⠀⡀⠀⠀⢀⡀⠀⢠⢢⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡎⠀⠀⠀⠀⠀⠀⢣⠀⢀⣀⠤⠊⠀⠈⠑⠢⢄⠀⠀⢠⠊⠘⡄⡰⠁⠀⠀⠈⢢⠀⠀⠀⣀⠤⠤⡀⠀⠀⠀⠀4484.400 | ⡇⠀⠈⢶⠁⠀⠈⠦⣀⠀⠀⠀⡔⠁⠀⠀⠱⡀⢰⠙⡄⢀⠎⠈⠒⠁⠀⠱⡀⠀⠀⠀⢠⠓⡄⢀⠤⡀⢰⠁⠀⠀⠀⠀⠀⠀⠀⠋⠁⠀⠀⠀⠀⠀⠀⠀⠀⠉⠉⠁⠀⠀⠘⠁⠀⠀⠀⠀⠀⠑⠒⠊⠀⠀⠀⠈⠢⠤⡄⠀3986.133 | ⡇⠀⠀⠀⠀⠀⠀⠀⠈⢢⠀⡸⠀⠀⠀⠀⠀⢣⠃⠀⠘⠎⠀⠀⠀⠀⠀⠀⠈⢆⡀⠀⡎⠀⠈⠁⠀⠱⡎⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢱⠀3487.867 | ⡇⠀⠀⠀⠀⠀⠀⠀⠀⠈⢢⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠚⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⡄2989.600 | ⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡇2491.333 | ⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸1993.067 | ⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈1494.800 | ⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀996.533 | ⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀498.267 | ⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀0.000 | ⣇⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀⣀-----------|-|---------|---------|---------|---------|---------|---------|---------|---------|-> (Time (s))| 0.000     5.760     11.520    17.280    23.040    28.800    34.560    40.320    46.080APIThe program exposes an API that you can use yourself:fromffmpeg_bitrate_statsimportBitrateStatsffbs=BitrateStats("path/to/ref")ffbs.calculate_statistics()ffbs.print_statistics()For more usage please readthe docs.Licenseffmpeg_bitrate_stats, Copyright (c) 2019-2023 Werner RobitzaPermission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.