Pre-release

This release is a pre-release and may not be stable for production use.

libwebm-py

About Shiguredo's open source software

We will not respond to PRs or issues that have not been discussed on Discord. Also, Discord is only available in Japanese.

Please read https://github.com/shiguredo/oss/blob/master/README.en.md before use.

時雨堂のオープンソースソフトウェアについて

利用前に https://github.com/shiguredo/oss をお読みください。

libwebm-py について

libwebm の Python バインディングです。WebM コンテナフォーマットの読み書きをサポートしています。

libwebm バージョン: 1.0.0.32
バインディング: nanobind を使用

対応プラットフォーム

macOS 15 arm64
macOS 14 arm64
Ubuntu 24.04 x86_64
Ubuntu 24.04 arm64
Windows 11 x86_64

対応 Python

3.13
3.12
3.11

インストール

uv add libwebm-py

使い方（基本 API）

提供: WebMReader, WebMWriter
ビデオ/オーディオトラックの読み書きをサポート
VP8/VP9、Opus/Vorbis コーデック対応

WebM ファイルの読み込み

import webm

# WebM ファイルを開く
reader = webm.WebMReader()
if not reader.open("input.webm"):
    print("Failed to open file")
    exit(1)

# ファイル情報を取得
duration = reader.get_duration()
if duration:
    print(f"Duration: {duration:.2f} seconds")

tracks_count = reader.get_tracks_count()
print(f"Number of tracks: {tracks_count}")

# ビデオ解像度を取得
resolution = reader.get_video_resolution()
if resolution:
    print(f"Video resolution: {resolution[0]}x{resolution[1]}")

reader.close()

WebM ファイルの作成

import webm

writer = webm.WebMWriter()
writer.open("output.webm")

# ビデオトラックを追加 (640x480, VP8 コーデック)
video_track = writer.add_video_track(640, 480, "V_VP8")

# オーディオトラックを追加 (48kHz, 2チャンネル, Opus コーデック)
audio_track = writer.add_audio_track(48000, 2, "A_OPUS")

# フレームを追加
for i in range(30):
    timestamp_ns = i * 33333333  # 30fps
    is_keyframe = (i % 10) == 0  # 10フレームごとにキーフレーム

    # ビデオフレームを追加 (実際のデータに置き換えてください)
    video_data = b'\x00' * 1000
    writer.add_frame(video_data, video_track, timestamp_ns, is_keyframe)

    # オーディオフレームを追加
    audio_data = b'\x00' * 500
    writer.add_frame(audio_data, audio_track, timestamp_ns, False)

writer.finalize()

トラック情報の取得

import webm

reader = webm.WebMReader()
reader.open("input.webm")

# トラックタイプを取得
track_types = reader.get_track_types()
print(f"Track types: {track_types}")  # 例: ['video', 'audio']

# 各トラックの詳細情報にアクセス
# (詳細な API は今後拡張予定)

reader.close()

サンプル

examples/read.py: WebM ファイルの情報を読み取るサンプル
examples/write.py: WebM ファイルを作成するサンプル
examples/version.py: ライブラリバージョンを確認

実行例:

uv run python examples/read.py input.webm
uv run python examples/write.py

ビルド

uv build --wheel

libwebm ライセンス

BSD 3-Clause License

Copyright (c) 2010, Google Inc. All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

  * Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.

  * Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in
    the documentation and/or other materials provided with the
    distribution.

  * Neither the name of Google nor the names of its contributors may
    be used to endorse or promote products derived from this software
    without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

libwebm-py ライセンス

Apache License 2.0

Copyright 2025-2025, Shiguredo Inc.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

Metadata

Release files for libwebm-py 2025.1.0.dev0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Built distributions (wheels)

Table of built distributions (wheels) for libwebm-py 2025.1.0.dev0
File	Interpreter	ABI	Platform	Reset
libwebm_py-2025.1.0.dev0-cp313-cp313-win_amd64.whl 406.0 kB Sep 17, 2025	CPython 3.13	CPython 3.13	Windows x86-64	Details
libwebm_py-2025.1.0.dev0-cp313-cp313-manylinux_2_39_x86_64.whl 298.8 kB Sep 17, 2025	CPython 3.13	CPython 3.13	Linux glibc 2.39+ x86-64	Details
libwebm_py-2025.1.0.dev0-cp313-cp313-manylinux_2_39_aarch64.whl 297.5 kB Sep 17, 2025	CPython 3.13	CPython 3.13	Linux glibc 2.39+ ARM64	Details
libwebm_py-2025.1.0.dev0-cp313-cp313-manylinux_2_35_x86_64.whl 297.1 kB Sep 17, 2025	CPython 3.13	CPython 3.13	Linux glibc 2.35+ x86-64	Details
libwebm_py-2025.1.0.dev0-cp313-cp313-manylinux_2_35_aarch64.whl 295.2 kB Sep 17, 2025	CPython 3.13	CPython 3.13	Linux glibc 2.35+ ARM64	Details
libwebm_py-2025.1.0.dev0-cp313-cp313-macosx_15_0_arm64.whl 284.4 kB Sep 17, 2025	CPython 3.13	CPython 3.13	macOS 15.0+ ARM64	Details
libwebm_py-2025.1.0.dev0-cp313-cp313-macosx_14_0_arm64.whl 283.4 kB Sep 17, 2025	CPython 3.13	CPython 3.13	macOS 14.0+ ARM64	Details
libwebm_py-2025.1.0.dev0-cp312-cp312-win_amd64.whl 406.1 kB Sep 17, 2025	CPython 3.12	CPython 3.12	Windows x86-64	Details
libwebm_py-2025.1.0.dev0-cp312-cp312-manylinux_2_39_x86_64.whl 298.9 kB Sep 17, 2025	CPython 3.12	CPython 3.12	Linux glibc 2.39+ x86-64	Details
libwebm_py-2025.1.0.dev0-cp312-cp312-manylinux_2_39_aarch64.whl 297.5 kB Sep 17, 2025	CPython 3.12	CPython 3.12	Linux glibc 2.39+ ARM64	Details
libwebm_py-2025.1.0.dev0-cp312-cp312-manylinux_2_35_x86_64.whl 297.2 kB Sep 17, 2025	CPython 3.12	CPython 3.12	Linux glibc 2.35+ x86-64	Details
libwebm_py-2025.1.0.dev0-cp312-cp312-manylinux_2_35_aarch64.whl 295.2 kB Sep 17, 2025	CPython 3.12	CPython 3.12	Linux glibc 2.35+ ARM64	Details
libwebm_py-2025.1.0.dev0-cp312-cp312-macosx_15_0_arm64.whl 284.5 kB Sep 17, 2025	CPython 3.12	CPython 3.12	macOS 15.0+ ARM64	Details
libwebm_py-2025.1.0.dev0-cp312-cp312-macosx_14_0_arm64.whl 283.5 kB Sep 17, 2025	CPython 3.12	CPython 3.12	macOS 14.0+ ARM64	Details
libwebm_py-2025.1.0.dev0-cp311-cp311-win_amd64.whl 406.8 kB Sep 17, 2025	CPython 3.11	CPython 3.11	Windows x86-64	Details
libwebm_py-2025.1.0.dev0-cp311-cp311-manylinux_2_39_x86_64.whl 299.8 kB Sep 17, 2025	CPython 3.11	CPython 3.11	Linux glibc 2.39+ x86-64	Details
libwebm_py-2025.1.0.dev0-cp311-cp311-manylinux_2_39_aarch64.whl 298.6 kB Sep 17, 2025	CPython 3.11	CPython 3.11	Linux glibc 2.39+ ARM64	Details
libwebm_py-2025.1.0.dev0-cp311-cp311-manylinux_2_35_x86_64.whl 298.1 kB Sep 17, 2025	CPython 3.11	CPython 3.11	Linux glibc 2.35+ x86-64	Details
libwebm_py-2025.1.0.dev0-cp311-cp311-manylinux_2_35_aarch64.whl 296.6 kB Sep 17, 2025	CPython 3.11	CPython 3.11	Linux glibc 2.35+ ARM64	Details
libwebm_py-2025.1.0.dev0-cp311-cp311-macosx_15_0_arm64.whl 285.5 kB Sep 17, 2025	CPython 3.11	CPython 3.11	macOS 15.0+ ARM64	Details
libwebm_py-2025.1.0.dev0-cp311-cp311-macosx_14_0_arm64.whl 284.5 kB Sep 17, 2025	CPython 3.11	CPython 3.11	macOS 14.0+ ARM64	Details

Total release size: 6.5 MB

Release files / libwebm_py-2025.1.0.dev0-cp313-cp313-win_amd64.whl

Download URL	libwebm_py-2025.1.0.dev0-cp313-cp313-win_amd64.whl
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Publishing commit: github.com/shiguredo/libwebm-py/tree/7b7dd3c35b75f5805459af1e9e443b8d2f9e9480

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Release files / libwebm_py-2025.1.0.dev0-cp313-cp313-manylinux_2_39_x86_64.whl

Download URL	libwebm_py-2025.1.0.dev0-cp313-cp313-manylinux_2_39_x86_64.whl
Size	298.8 kB
Tags	CPython 3.13 Linux glibc 2.39+ x86-64
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Publishing platform: GitHub Actions
Publishing repository: github.com/shiguredo/libwebm-py
Publishing commit: github.com/shiguredo/libwebm-py/tree/7b7dd3c35b75f5805459af1e9e443b8d2f9e9480

Workflow

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Size	297.5 kB
Tags	CPython 3.13 Linux glibc 2.39+ ARM64
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Publishing platform: GitHub Actions
Publishing repository: github.com/shiguredo/libwebm-py
Publishing commit: github.com/shiguredo/libwebm-py/tree/7b7dd3c35b75f5805459af1e9e443b8d2f9e9480

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Publishing platform: GitHub Actions
Publishing repository: github.com/shiguredo/libwebm-py
Publishing commit: github.com/shiguredo/libwebm-py/tree/7b7dd3c35b75f5805459af1e9e443b8d2f9e9480

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Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing platform: GitHub Actions
Publishing repository: github.com/shiguredo/libwebm-py
Publishing commit: github.com/shiguredo/libwebm-py/tree/7b7dd3c35b75f5805459af1e9e443b8d2f9e9480

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Release files / libwebm_py-2025.1.0.dev0-cp313-cp313-macosx_15_0_arm64.whl

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Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing repository: github.com/shiguredo/libwebm-py
Publishing commit: github.com/shiguredo/libwebm-py/tree/7b7dd3c35b75f5805459af1e9e443b8d2f9e9480

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Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing repository: github.com/shiguredo/libwebm-py
Publishing commit: github.com/shiguredo/libwebm-py/tree/7b7dd3c35b75f5805459af1e9e443b8d2f9e9480

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Publishing repository: github.com/shiguredo/libwebm-py
Publishing commit: github.com/shiguredo/libwebm-py/tree/7b7dd3c35b75f5805459af1e9e443b8d2f9e9480

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Publishing configuration: github.com/shiguredo/libwebm-py/blob/7b7dd3c35b75f5805459af1e9e443b8d2f9e9480/.github/workflows/wheel.yml
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Download URL	libwebm_py-2025.1.0.dev0-cp312-cp312-manylinux_2_39_x86_64.whl
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Tags	CPython 3.12 Linux glibc 2.39+ x86-64
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Publishing repository: github.com/shiguredo/libwebm-py
Publishing commit: github.com/shiguredo/libwebm-py/tree/7b7dd3c35b75f5805459af1e9e443b8d2f9e9480

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Release files / libwebm_py-2025.1.0.dev0-cp312-cp312-manylinux_2_39_aarch64.whl

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Publishing repository: github.com/shiguredo/libwebm-py
Publishing commit: github.com/shiguredo/libwebm-py/tree/7b7dd3c35b75f5805459af1e9e443b8d2f9e9480

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Release files / libwebm_py-2025.1.0.dev0-cp311-cp311-manylinux_2_39_aarch64.whl

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Release files / libwebm_py-2025.1.0.dev0-cp311-cp311-macosx_15_0_arm64.whl

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Publishing commit: github.com/shiguredo/libwebm-py/tree/7b7dd3c35b75f5805459af1e9e443b8d2f9e9480

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Release files / libwebm_py-2025.1.0.dev0-cp311-cp311-macosx_14_0_arm64.whl

Download URL	libwebm_py-2025.1.0.dev0-cp311-cp311-macosx_14_0_arm64.whl
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Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing repository: github.com/shiguredo/libwebm-py
Publishing commit: github.com/shiguredo/libwebm-py/tree/7b7dd3c35b75f5805459af1e9e443b8d2f9e9480

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This release

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2025.1.0.dev0 This release

Sep 17, 2025 21 release files

libwebm-py 2025.1.0.dev0

libwebm-py

About Shiguredo's open source software

時雨堂のオープンソースソフトウェアについて

libwebm-py について

対応プラットフォーム

対応 Python

インストール

使い方（基本 API）

WebM ファイルの読み込み

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