# `ffmpeg_debug_qp`
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[](#contributors-)
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[](https://ci.appveyor.com/project/slhck/ffmpeg-debug-qp/branch/master)
Authors: Werner Robitza, Steve Göring, Pierre Lebreton, Nathan Trevivian
`ffmpeg-debug-qp` is based on ffmpeg and prints QP values of a video input on a per-frame, per-macroblock basis to STDERR.
The tool comes with an additional Python parser to help interpret the output.
> **⚠️ Note:** This tool relies upon a “hack” to get the QP values. It is not guaranteed to work with all videos. It also does not work with ffmpeg 5.x or above. Use with caution.
**Contents:**
- [Requirements](#requirements)
- [Linux](#linux)
- [Windows](#windows)
- [macOS](#macos)
- [Building](#building)
- [Building under Linux and macOS](#building-under-linux-and-macos)
- [Building under Windows](#building-under-windows)
- [Usage](#usage)
- [Direct Usage](#direct-usage)
- [Python Usage](#python-usage)
- [Acknowledgements](#acknowledgements)
- [Contributors](#contributors)
- [License](#license)
## Requirements
- Python 3.8 or higher
- ffmpeg v4 libraries (⚠️ ffmpeg v5 API is not supported yet, PRs are welcome!)
### Linux
For building:
- libavdevice, libavformat, libavfilter, libavcodec, libswresample, libswscale, libavutil
- C compiler
For example on Ubuntu:
sudo apt -qq update && \
sudo apt install libavdevice-dev libavformat-dev libavfilter-dev libavcodec-dev libswresample-dev libswscale-dev libavutil-dev build-essential pkg-config
### Windows
For building:
- Visual Studio >= 2015 with C/C++ compiler installed with 64 bit support
- Depending libraries (FFmpeg) are provided along the project, therefore no extra libraries are needed.
### macOS
For building:
- [Homebrew](https://brew.sh/)
Then:
brew install ffmpeg pkg-config
## Building
In order to use this tool, you need to build the `ffmpeg_debug_qp` binary.
For Windows, you can use the pre-built binary for the master branch, which can be found here: https://ci.appveyor.com/api/projects/slhck/ffmpeg-debug-qp/artifacts/build.zip). Also download the DLL files from `build/dll.zip` and unzip them.
### Building under Linux and macOS
Simply run the command:
```
make
```
The binary will be created under `ffmpeg_debug_qp` in the same folder.
You can add it to your `$PATH`, e.g. by copying it to `/usr/local/bin`:
```
sudo cp ./ffmpeg_debug_qp /usr/local/bin/
```
This way, you can call it from anywhere on your system.
### Building under Windows
- Open the solution file `ffmpeg-debug-qp.sln` which can be found in `build\ffmpeg-debug-qp\`
- Make sure to compile in release mode (See the dropdown on the top menu bar. This is not necessary per-se, but beneficial for speed at runtime)
- Build the tool with `Ctrl-Shift-B`
- The binary will be available in `build\bin\`, required DLL files can be found in the 7zip archive which can be found in `build\bin.7z`
- Copy DLL and binary to the root of the folder `ffmpeg-debug-qp` so depending scripts can find the binary.
## Usage
Run this tool on any of the supported file types:
- MPEG-2
- MPEG-4 Part 2
- H.264 / MPEG-4 Part 10 (AVC)
Supported formats:
- MPEG-4 Part 14
- H.264 Annex B bytestreams
### Direct Usage
Simply call the binary with the path to a file:
```console
./ffmpeg_debug_qp test/test.mp4
[h264 @ 0x7fa9c780d200] nal_unit_type: 5(IDR), nal_ref_idc: 3
[h264 @ 0x7fa9c780d200] Format yuv420p chosen by get_format().
[h264 @ 0x7fa9c780d200] Reinit context to 320x192, pix_fmt: yuv420p
[h264 @ 0x7fa9c780d200] New frame, type: I
[h264 @ 0x7fa9c780d200] 1111111111111111111111111111111111111111
[h264 @ 0x7fa9c780d200] 1111111111111111111111111111111111111111
[h264 @ 0x7fa9c780d200] 1111111111111111111111111111111111111111
[h264 @ 0x7fa9c780d200] 1111111111111111111111111111111111111111
[h264 @ 0x7fa9c780d200] 1111111111111111111111111111111111111111
[h264 @ 0x7fa9c780d200] 1111111111111111111111111111111111111111
```
You will see the QP values for each macroblock of every frame. Each pair of two numbers is a QP value, hence, in the above example, the QP values are `11`, `11` and so on.
### Python Usage
You can run the supplied Python tool that helps you parse the results from `ffmpeg_debug_qp`.
First, build the binary and add it to your `$PATH`.
You can run the library directly via `python3 -m ffmpeg_debug_qp_parser`, or install it with `pip`:
```bash
pip3 install --user ffmpeg_debug_qp_parser
```
**Note:** Previous versions installed a `ffmpeg_debug_qp_parser` executable. To harmonize it with other tools, now the executable is called `ffmpeg-debug-qp-parser`. Please ensure you remove the old executable (e.g. run `which ffmpeg_debug_qp_parser` and remove the file).
The tool options are as follows:
```
usage: ffmpeg-debug-qp-parser [-h] [-f] [-of OUTPUT_FORMAT] [-p PATH_TO_TOOL] [-l | -k]
[-m | -a]
video|logfile output
Parse QP values from ffmpeg-debug-qp
positional arguments:
video|logfile Video file to generate output for, or existing logfile
output Output file
optional arguments:
-h, --help show this help message and exit
-f, --force Overwrite output
-of OUTPUT_FORMAT, --output-format OUTPUT_FORMAT
Output format, one of: ld-json (default), json or csv
-p PATH_TO_TOOL, --path-to-tool PATH_TO_TOOL
Path to ffmpeg_debug_qp executable (will search in $PATH by default)
-l, --use-logfile Use precalculated logfile instead of the video
-k, --keep-logfile Don't remove the temporary logfile 'video.debug'
-m, --include-macroblock-data
Include macroblock-level data, such as: type, interlaced and segmentation
-a, --compute-averages-only
Only compute the frame-average QPs
```
#### Python Example
To run a basic example:
```
ffmpeg-debug-qp-parser input.mp4 output_file.json -m -of json
```
This reads the file `input.mp4` and produces a JSON file `output_file.json`, with a list of frames and each of their macroblocks in the format:
```json
[
{
"frameType": "I",
"frameSize": 7787,
"qpAvg": 26.87280701754386,
"qpValues": [
{
"qp": 25,
"type": "i",
"segmentation": "",
"interlaced": ""
},
{
"qp": 26,
"type": "i",
"segmentation": "",
"interlaced": ""
}, ...
```
The frame and macroblock types are as per ffmpeg debug information. The same goes for segmentation and interlaced values.
For example outputs, see:
* Line-delimited JSON
* [Averages only](examples/example-avgs.ldjson)
* [Macroblock data](examples/example-mbdata.ldjson)
* JSON
* [Averages only](examples/example-avgs.json)
* [Macroblock data](examples/example-mbdata.json)
* CSV
* [Averages only](examples/example-avgs.csv)
* [Macroblock data](examples/example-mbdata.csv)
## Acknowledgements
This code is based on:
- the code from [Fredrik Pihl](https://gist.github.com/figgis/ea9ac513cdd99a10abf1)
- which is adapted from the code example `demuxing_decoding.c` by Stefano Sabatini
See also [this thread](https://ffmpeg.org/pipermail/libav-user/2015-May/008122.html) on the libav-user mailing list.
Test video part of Big Buck Bunny (c) copyright 2008, Blender Foundation / www.bigbuckbunny.org
## Contributors
<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
<!-- prettier-ignore-start -->
<!-- markdownlint-disable -->
<table>
<tbody>
<tr>
<td align="center" valign="top" width="14.28%"><a href="http://slhck.info/"><img src="https://avatars.githubusercontent.com/u/582444?v=4?s=100" width="100px;" alt="Werner Robitza"/><br /><sub><b>Werner Robitza</b></sub></a><br /><a href="https://github.com/slhck/ffmpeg-debug-qp/commits?author=slhck" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ndtreviv"><img src="https://avatars.githubusercontent.com/u/1530653?v=4?s=100" width="100px;" alt="Nathan Trevivian"/><br /><sub><b>Nathan Trevivian</b></sub></a><br /><a href="https://github.com/slhck/ffmpeg-debug-qp/commits?author=ndtreviv" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/lars18th"><img src="https://avatars.githubusercontent.com/u/9989964?v=4?s=100" width="100px;" alt="Lars The"/><br /><sub><b>Lars The</b></sub></a><br /><a href="https://github.com/slhck/ffmpeg-debug-qp/commits?author=lars18th" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/plebreton"><img src="https://avatars.githubusercontent.com/u/19344718?v=4?s=100" width="100px;" alt="plebreton"/><br /><sub><b>plebreton</b></sub></a><br /><a href="https://github.com/slhck/ffmpeg-debug-qp/commits?author=plebreton" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/winking324"><img src="https://avatars.githubusercontent.com/u/7922054?v=4?s=100" width="100px;" alt="winking324"/><br /><sub><b>winking324</b></sub></a><br /><a href="https://github.com/slhck/ffmpeg-debug-qp/commits?author=winking324" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://stg7.github.io/"><img src="https://avatars.githubusercontent.com/u/9373295?v=4?s=100" width="100px;" alt="Steve Göring"/><br /><sub><b>Steve Göring</b></sub></a><br /><a href="https://github.com/slhck/ffmpeg-debug-qp/commits?author=stg7" title="Code">💻</a></td>
</tr>
</tbody>
<tfoot>
<tr>
<td align="center" size="13px" colspan="7">
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<a href="https://all-contributors.js.org/docs/en/bot/usage">Add your contributions</a>
</img>
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## License
MIT License
Copyright (c) 2016-2023 Werner Robitza, Steve Göring, Fredrik Pihl, Stefano Sabatini, Nathan Trevivian
Permission 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.
FFmpeg libraries are licensed under the GNU Lesser General Public License, version 2.1.
Raw data
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"description": "# `ffmpeg_debug_qp`\n<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->\n[](#contributors-)\n<!-- ALL-CONTRIBUTORS-BADGE:END -->\n\n[](https://ci.appveyor.com/project/slhck/ffmpeg-debug-qp/branch/master)\n\nAuthors: Werner Robitza, Steve G\u00f6ring, Pierre Lebreton, Nathan Trevivian\n\n`ffmpeg-debug-qp` is based on ffmpeg and prints QP values of a video input on a per-frame, per-macroblock basis to STDERR.\n\nThe tool comes with an additional Python parser to help interpret the output.\n\n> **\u26a0\ufe0f Note:** This tool relies upon a \u201chack\u201d to get the QP values. It is not guaranteed to work with all videos. It also does not work with ffmpeg 5.x or above. Use with caution.\n\n**Contents:**\n\n- [Requirements](#requirements)\n - [Linux](#linux)\n - [Windows](#windows)\n - [macOS](#macos)\n- [Building](#building)\n - [Building under Linux and macOS](#building-under-linux-and-macos)\n - [Building under Windows](#building-under-windows)\n- [Usage](#usage)\n - [Direct Usage](#direct-usage)\n - [Python Usage](#python-usage)\n- [Acknowledgements](#acknowledgements)\n- [Contributors](#contributors)\n- [License](#license)\n\n## Requirements\n\n- Python 3.8 or higher\n- ffmpeg v4 libraries (\u26a0\ufe0f ffmpeg v5 API is not supported yet, PRs are welcome!)\n\n### Linux\n\nFor building:\n\n- libavdevice, libavformat, libavfilter, libavcodec, libswresample, libswscale, libavutil\n- C compiler\n\nFor example on Ubuntu:\n\n sudo apt -qq update && \\\n sudo apt install libavdevice-dev libavformat-dev libavfilter-dev libavcodec-dev libswresample-dev libswscale-dev libavutil-dev build-essential pkg-config\n\n### Windows\n\nFor building:\n\n- Visual Studio >= 2015 with C/C++ compiler installed with 64 bit support\n- Depending libraries (FFmpeg) are provided along the project, therefore no extra libraries are needed.\n\n### macOS\n\nFor building:\n\n- [Homebrew](https://brew.sh/)\n\nThen:\n\n brew install ffmpeg pkg-config\n\n## Building\n\nIn order to use this tool, you need to build the `ffmpeg_debug_qp` binary.\n\nFor Windows, you can use the pre-built binary for the master branch, which can be found here: https://ci.appveyor.com/api/projects/slhck/ffmpeg-debug-qp/artifacts/build.zip). Also download the DLL files from `build/dll.zip` and unzip them.\n\n\n### Building under Linux and macOS\n\nSimply run the command:\n\n```\nmake\n```\n\nThe binary will be created under `ffmpeg_debug_qp` in the same folder.\n\nYou can add it to your `$PATH`, e.g. by copying it to `/usr/local/bin`:\n\n```\nsudo cp ./ffmpeg_debug_qp /usr/local/bin/\n```\n\nThis way, you can call it from anywhere on your system.\n\n### Building under Windows\n\n- Open the solution file `ffmpeg-debug-qp.sln` which can be found in `build\\ffmpeg-debug-qp\\`\n- Make sure to compile in release mode (See the dropdown on the top menu bar. This is not necessary per-se, but beneficial for speed at runtime)\n- Build the tool with `Ctrl-Shift-B`\n- The binary will be available in `build\\bin\\`, required DLL files can be found in the 7zip archive which can be found in `build\\bin.7z`\n- Copy DLL and binary to the root of the folder `ffmpeg-debug-qp` so depending scripts can find the binary.\n\n## Usage\n\nRun this tool on any of the supported file types:\n\n- MPEG-2\n- MPEG-4 Part 2\n- H.264 / MPEG-4 Part 10 (AVC)\n\nSupported formats:\n\n- MPEG-4 Part 14\n- H.264 Annex B bytestreams\n\n### Direct Usage\n\nSimply call the binary with the path to a file:\n\n```console\n./ffmpeg_debug_qp test/test.mp4\n[h264 @ 0x7fa9c780d200] nal_unit_type: 5(IDR), nal_ref_idc: 3\n[h264 @ 0x7fa9c780d200] Format yuv420p chosen by get_format().\n[h264 @ 0x7fa9c780d200] Reinit context to 320x192, pix_fmt: yuv420p\n[h264 @ 0x7fa9c780d200] New frame, type: I\n[h264 @ 0x7fa9c780d200] 1111111111111111111111111111111111111111\n[h264 @ 0x7fa9c780d200] 1111111111111111111111111111111111111111\n[h264 @ 0x7fa9c780d200] 1111111111111111111111111111111111111111\n[h264 @ 0x7fa9c780d200] 1111111111111111111111111111111111111111\n[h264 @ 0x7fa9c780d200] 1111111111111111111111111111111111111111\n[h264 @ 0x7fa9c780d200] 1111111111111111111111111111111111111111\n```\n\nYou will see the QP values for each macroblock of every frame. Each pair of two numbers is a QP value, hence, in the above example, the QP values are `11`, `11` and so on.\n\n### Python Usage\n\nYou can run the supplied Python tool that helps you parse the results from `ffmpeg_debug_qp`.\n\nFirst, build the binary and add it to your `$PATH`.\n\nYou can run the library directly via `python3 -m ffmpeg_debug_qp_parser`, or install it with `pip`:\n\n```bash\npip3 install --user ffmpeg_debug_qp_parser\n```\n\n**Note:** Previous versions installed a `ffmpeg_debug_qp_parser` executable. To harmonize it with other tools, now the executable is called `ffmpeg-debug-qp-parser`. Please ensure you remove the old executable (e.g. run `which ffmpeg_debug_qp_parser` and remove the file).\n\nThe tool options are as follows:\n\n```\nusage: ffmpeg-debug-qp-parser [-h] [-f] [-of OUTPUT_FORMAT] [-p PATH_TO_TOOL] [-l | -k]\n [-m | -a]\n video|logfile output\n\nParse QP values from ffmpeg-debug-qp\n\npositional arguments:\n video|logfile Video file to generate output for, or existing logfile\n output Output file\n\noptional arguments:\n -h, --help show this help message and exit\n -f, --force Overwrite output\n -of OUTPUT_FORMAT, --output-format OUTPUT_FORMAT\n Output format, one of: ld-json (default), json or csv\n -p PATH_TO_TOOL, --path-to-tool PATH_TO_TOOL\n Path to ffmpeg_debug_qp executable (will search in $PATH by default)\n -l, --use-logfile Use precalculated logfile instead of the video\n -k, --keep-logfile Don't remove the temporary logfile 'video.debug'\n -m, --include-macroblock-data\n Include macroblock-level data, such as: type, interlaced and segmentation\n -a, --compute-averages-only\n Only compute the frame-average QPs\n```\n\n\n#### Python Example\n\nTo run a basic example:\n\n```\nffmpeg-debug-qp-parser input.mp4 output_file.json -m -of json\n```\n\nThis reads the file `input.mp4` and produces a JSON file `output_file.json`, with a list of frames and each of their macroblocks in the format:\n\n```json\n [\n {\n \"frameType\": \"I\",\n \"frameSize\": 7787,\n \"qpAvg\": 26.87280701754386,\n \"qpValues\": [\n {\n \"qp\": 25,\n \"type\": \"i\",\n \"segmentation\": \"\",\n \"interlaced\": \"\"\n },\n {\n \"qp\": 26,\n \"type\": \"i\",\n \"segmentation\": \"\",\n \"interlaced\": \"\"\n }, ...\n```\n\nThe frame and macroblock types are as per ffmpeg debug information. The same goes for segmentation and interlaced values.\n\nFor example outputs, see:\n\n* Line-delimited JSON\n * [Averages only](examples/example-avgs.ldjson)\n * [Macroblock data](examples/example-mbdata.ldjson)\n* JSON\n * [Averages only](examples/example-avgs.json)\n * [Macroblock data](examples/example-mbdata.json)\n* CSV\n * [Averages only](examples/example-avgs.csv)\n * [Macroblock data](examples/example-mbdata.csv)\n\n## Acknowledgements\n\nThis code is based on:\n\n- the code from [Fredrik Pihl](https://gist.github.com/figgis/ea9ac513cdd99a10abf1)\n- which is adapted from the code example `demuxing_decoding.c` by Stefano Sabatini\n\nSee also [this thread](https://ffmpeg.org/pipermail/libav-user/2015-May/008122.html) on the libav-user mailing list.\n\nTest video part of Big Buck Bunny (c) copyright 2008, Blender Foundation / www.bigbuckbunny.org\n\n## Contributors\n\n<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->\n<!-- prettier-ignore-start -->\n<!-- markdownlint-disable -->\n<table>\n <tbody>\n <tr>\n <td align=\"center\" valign=\"top\" width=\"14.28%\"><a href=\"http://slhck.info/\"><img src=\"https://avatars.githubusercontent.com/u/582444?v=4?s=100\" width=\"100px;\" alt=\"Werner Robitza\"/><br /><sub><b>Werner Robitza</b></sub></a><br /><a href=\"https://github.com/slhck/ffmpeg-debug-qp/commits?author=slhck\" title=\"Code\">\ud83d\udcbb</a></td>\n <td align=\"center\" valign=\"top\" width=\"14.28%\"><a href=\"https://github.com/ndtreviv\"><img src=\"https://avatars.githubusercontent.com/u/1530653?v=4?s=100\" width=\"100px;\" alt=\"Nathan Trevivian\"/><br /><sub><b>Nathan Trevivian</b></sub></a><br /><a href=\"https://github.com/slhck/ffmpeg-debug-qp/commits?author=ndtreviv\" title=\"Code\">\ud83d\udcbb</a></td>\n <td align=\"center\" valign=\"top\" width=\"14.28%\"><a href=\"https://github.com/lars18th\"><img src=\"https://avatars.githubusercontent.com/u/9989964?v=4?s=100\" width=\"100px;\" alt=\"Lars The\"/><br /><sub><b>Lars The</b></sub></a><br /><a href=\"https://github.com/slhck/ffmpeg-debug-qp/commits?author=lars18th\" title=\"Code\">\ud83d\udcbb</a></td>\n <td align=\"center\" valign=\"top\" width=\"14.28%\"><a href=\"https://github.com/plebreton\"><img src=\"https://avatars.githubusercontent.com/u/19344718?v=4?s=100\" width=\"100px;\" alt=\"plebreton\"/><br /><sub><b>plebreton</b></sub></a><br /><a href=\"https://github.com/slhck/ffmpeg-debug-qp/commits?author=plebreton\" title=\"Code\">\ud83d\udcbb</a></td>\n <td align=\"center\" valign=\"top\" width=\"14.28%\"><a href=\"https://github.com/winking324\"><img src=\"https://avatars.githubusercontent.com/u/7922054?v=4?s=100\" width=\"100px;\" alt=\"winking324\"/><br /><sub><b>winking324</b></sub></a><br /><a href=\"https://github.com/slhck/ffmpeg-debug-qp/commits?author=winking324\" title=\"Code\">\ud83d\udcbb</a></td>\n <td align=\"center\" valign=\"top\" width=\"14.28%\"><a href=\"https://stg7.github.io/\"><img src=\"https://avatars.githubusercontent.com/u/9373295?v=4?s=100\" width=\"100px;\" alt=\"Steve G\u00f6ring\"/><br /><sub><b>Steve G\u00f6ring</b></sub></a><br /><a href=\"https://github.com/slhck/ffmpeg-debug-qp/commits?author=stg7\" title=\"Code\">\ud83d\udcbb</a></td>\n </tr>\n </tbody>\n <tfoot>\n <tr>\n <td align=\"center\" size=\"13px\" colspan=\"7\">\n <img src=\"https://raw.githubusercontent.com/all-contributors/all-contributors-cli/1b8533af435da9854653492b1327a23a4dbd0a10/assets/logo-small.svg\">\n <a href=\"https://all-contributors.js.org/docs/en/bot/usage\">Add your contributions</a>\n </img>\n </td>\n </tr>\n </tfoot>\n</table>\n\n<!-- markdownlint-restore -->\n<!-- prettier-ignore-end -->\n\n<!-- ALL-CONTRIBUTORS-LIST:END -->\n\n## License\n\nMIT License\n\nCopyright (c) 2016-2023 Werner Robitza, Steve G\u00f6ring, Fredrik Pihl, Stefano Sabatini, Nathan Trevivian\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in\nall copies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL\nTHE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\nTHE SOFTWARE.\n\nFFmpeg libraries are licensed under the GNU Lesser General Public License, version 2.1.\n",
"bugtrack_url": null,
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