mp4-py

About Shiguredo's open source software

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

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mp4-py について

mp4-rust の Python バインディングです。 MP4 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。

対応プラットフォーム

macOS 26 arm64
macOS 15 arm64
Ubuntu 24.04 x86_64
Ubuntu 24.04 arm64
Ubuntu 22.04 x86_64
Ubuntu 22.04 arm64
Windows Server 2025 x86_64
Windows 11 x86_64

対応 Python

3.14
3.14t
3.13
3.12

インストール

uv add mp4-py

使い方（基本 API）

Mp4FileDemuxer / Mp4FileMuxer
ビデオ/オーディオトラックの読み書きをサポート
Opus / AAC / FLAC 音声コーデック対応
VP8 / VP9 / AV1 / H.264 / H.265 映像コーデック対応
Python Free Threading 対応

MP4 ファイルの読み込み

import io
from mp4 import Mp4FileDemuxer

# ファイルパスから demuxer を作成
with Mp4FileDemuxer("input.mp4") as demuxer:
    # サンプルを走査して処理
    for sample in demuxer:
        print(f"Sample: {sample.timestamp_seconds}s, keyframe={sample.keyframe}")
        print(f"Data size: {len(sample.data)} bytes")

# バイナリストリームから demuxer を作成
with open("input.mp4", "rb") as fp:
    demuxer = Mp4FileDemuxer(fp)
    for sample in demuxer:
        # サンプルを処理...
        pass

MP4 ファイルの作成

import io
from mp4 import (
    Mp4FileMuxer,
    Mp4MuxSample,
    Mp4SampleEntryVp08,
)


# ファイルにマルチプレックス
with Mp4FileMuxer("output.mp4") as muxer:
    # VP8 ビデオサンプルエントリーを作成
    video_entry = Mp4SampleEntryVp08(
        width=1920,
        height=1080,
    )

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

        # ビデオデータ（実際のエンコード済みデータに置き換えてください）
        video_data = b'\x00' * 1000

        # サンプルを作成して追加
        sample = Mp4MuxSample(
            track_kind="video",
            sample_entry=video_entry,
            keyframe=is_keyframe,
            timescale=30,
            duration=1,
            data=video_data,
        )
        muxer.append_sample(sample)

    # finalize() を呼んでファイルを完成させる（自動的に呼ばれるが明示的に呼ぶこともできます）

# バイナリストリームにマルチプレックス
with open("output.mp4", "wb") as fp:
    with Mp4FileMuxer(fp) as muxer:
        # マルチプレックス処理...
        pass

トラック情報の取得

from mp4 import Mp4FileDemuxer

with Mp4FileDemuxer("input.mp4") as demuxer:
    for track in demuxer.tracks:
        print(f"Track ID: {track.track_id}")
        print(f"Kind: {track.kind}")  # 'video' または 'audio'
        print(f"Duration: {track.duration_seconds:.2f}s")

サンプル

examples/demux.py: MP4 ファイルをデマルチプレックスしてトラックとサンプル情報を表示
examples/remux.py: MP4 ファイルをリマルチプレックス（読み込んで別ファイルに書き込む）

実行例:

uv run python examples/demux.py input.mp4
uv run python examples/remux.py input.mp4 output.mp4

ビルド

uv build --wheel

mp4-rust ライセンス

Apache License 2.0

Copyright 2024-2026, Takeru Ohta (Original Author)
Copyright 2024-2026, 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.

mp4-py ライセンス

Apache License 2.0

Copyright 2025-2026, Takeru Ohta (Original Author)
Copyright 2025-2026, 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 mp4-py 2026.1.0

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 mp4-py 2026.1.0
File	Interpreter	ABI	Platform	Reset
mp4_py-2026.1.0-cp314-cp314t-win_amd64.whl 332.2 kB Jan 7, 2026	CPython 3.14	CPython 3.14 free-threading	Windows x86-64	Details
mp4_py-2026.1.0-cp314-cp314t-manylinux_2_39_x86_64.whl 808.1 kB Jan 7, 2026	CPython 3.14	CPython 3.14 free-threading	Linux glibc 2.39+ x86-64	Details
mp4_py-2026.1.0-cp314-cp314t-manylinux_2_39_aarch64.whl 767.3 kB Jan 7, 2026	CPython 3.14	CPython 3.14 free-threading	Linux glibc 2.39+ ARM64	Details
mp4_py-2026.1.0-cp314-cp314t-manylinux_2_34_x86_64.whl 805.9 kB Jan 7, 2026	CPython 3.14	CPython 3.14 free-threading	Linux glibc 2.34+ x86-64	Details
mp4_py-2026.1.0-cp314-cp314t-manylinux_2_34_aarch64.whl 767.7 kB Jan 7, 2026	CPython 3.14	CPython 3.14 free-threading	Linux glibc 2.34+ ARM64	Details
mp4_py-2026.1.0-cp314-cp314t-macosx_15_0_arm64.whl 744.8 kB Jan 7, 2026	CPython 3.14	CPython 3.14 free-threading	macOS 15.0+ ARM64	Details
mp4_py-2026.1.0-cp314-cp314-win_amd64.whl 323.1 kB Jan 7, 2026	CPython 3.14	CPython 3.14	Windows x86-64	Details
mp4_py-2026.1.0-cp314-cp314-manylinux_2_39_x86_64.whl 804.3 kB Jan 7, 2026	CPython 3.14	CPython 3.14	Linux glibc 2.39+ x86-64	Details
mp4_py-2026.1.0-cp314-cp314-manylinux_2_39_aarch64.whl 763.5 kB Jan 7, 2026	CPython 3.14	CPython 3.14	Linux glibc 2.39+ ARM64	Details
mp4_py-2026.1.0-cp314-cp314-manylinux_2_34_x86_64.whl 801.9 kB Jan 7, 2026	CPython 3.14	CPython 3.14	Linux glibc 2.34+ x86-64	Details
mp4_py-2026.1.0-cp314-cp314-manylinux_2_34_aarch64.whl 763.3 kB Jan 7, 2026	CPython 3.14	CPython 3.14	Linux glibc 2.34+ ARM64	Details
mp4_py-2026.1.0-cp314-cp314-macosx_15_0_arm64.whl 741.9 kB Jan 7, 2026	CPython 3.14	CPython 3.14	macOS 15.0+ ARM64	Details
mp4_py-2026.1.0-cp313-cp313-win_amd64.whl 313.3 kB Jan 7, 2026	CPython 3.13	CPython 3.13	Windows x86-64	Details
mp4_py-2026.1.0-cp313-cp313-manylinux_2_39_x86_64.whl 804.4 kB Jan 7, 2026	CPython 3.13	CPython 3.13	Linux glibc 2.39+ x86-64	Details
mp4_py-2026.1.0-cp313-cp313-manylinux_2_39_aarch64.whl 762.9 kB Jan 7, 2026	CPython 3.13	CPython 3.13	Linux glibc 2.39+ ARM64	Details
mp4_py-2026.1.0-cp313-cp313-manylinux_2_34_x86_64.whl 801.9 kB Jan 7, 2026	CPython 3.13	CPython 3.13	Linux glibc 2.34+ x86-64	Details
mp4_py-2026.1.0-cp313-cp313-manylinux_2_34_aarch64.whl 763.0 kB Jan 7, 2026	CPython 3.13	CPython 3.13	Linux glibc 2.34+ ARM64	Details
mp4_py-2026.1.0-cp313-cp313-macosx_15_0_arm64.whl 741.9 kB Jan 7, 2026	CPython 3.13	CPython 3.13	macOS 15.0+ ARM64	Details
mp4_py-2026.1.0-cp312-cp312-win_amd64.whl 313.3 kB Jan 7, 2026	CPython 3.12	CPython 3.12	Windows x86-64	Details
mp4_py-2026.1.0-cp312-cp312-manylinux_2_39_x86_64.whl 804.3 kB Jan 7, 2026	CPython 3.12	CPython 3.12	Linux glibc 2.39+ x86-64	Details
mp4_py-2026.1.0-cp312-cp312-manylinux_2_39_aarch64.whl 763.2 kB Jan 7, 2026	CPython 3.12	CPython 3.12	Linux glibc 2.39+ ARM64	Details
mp4_py-2026.1.0-cp312-cp312-manylinux_2_34_x86_64.whl 801.8 kB Jan 7, 2026	CPython 3.12	CPython 3.12	Linux glibc 2.34+ x86-64	Details
mp4_py-2026.1.0-cp312-cp312-manylinux_2_34_aarch64.whl 763.1 kB Jan 7, 2026	CPython 3.12	CPython 3.12	Linux glibc 2.34+ ARM64	Details
mp4_py-2026.1.0-cp312-cp312-macosx_15_0_arm64.whl 742.0 kB Jan 7, 2026	CPython 3.12	CPython 3.12	macOS 15.0+ ARM64	Details

Total release size: 16.8 MB

Release files / mp4_py-2026.1.0-cp314-cp314t-win_amd64.whl

Download URL	mp4_py-2026.1.0-cp314-cp314t-win_amd64.whl
Size	332.2 kB
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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/mp4-py
Publishing commit: github.com/shiguredo/mp4-py/tree/c63550e6b93070cdac053ead5caf298ca2b0f60b

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Download URL	mp4_py-2026.1.0-cp314-cp314t-manylinux_2_39_x86_64.whl
Size	808.1 kB
Tags	CPython 3.14 CPython 3.14 free-threading Linux glibc 2.39+ x86-64
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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/mp4-py
Publishing commit: github.com/shiguredo/mp4-py/tree/c63550e6b93070cdac053ead5caf298ca2b0f60b

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Publishing configuration: github.com/shiguredo/mp4-py/blob/c63550e6b93070cdac053ead5caf298ca2b0f60b/.github/workflows/wheel.yml
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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/mp4-py
Publishing commit: github.com/shiguredo/mp4-py/tree/c63550e6b93070cdac053ead5caf298ca2b0f60b

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Publishing configuration: github.com/shiguredo/mp4-py/blob/c63550e6b93070cdac053ead5caf298ca2b0f60b/.github/workflows/wheel.yml
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Download URL	mp4_py-2026.1.0-cp314-cp314t-manylinux_2_34_x86_64.whl
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Uploaded using Trusted Publishing? What is trusted publishing?	Yes
Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing platform: GitHub Actions
Publishing repository: github.com/shiguredo/mp4-py
Publishing commit: github.com/shiguredo/mp4-py/tree/c63550e6b93070cdac053ead5caf298ca2b0f60b

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Publishing configuration: github.com/shiguredo/mp4-py/blob/c63550e6b93070cdac053ead5caf298ca2b0f60b/.github/workflows/wheel.yml
Publishing logs: github.com/shiguredo/mp4-py/actions/runs/20773890522/attempts/1

Artifact

Subject: mp4_py-2026.1.0-cp314-cp314t-manylinux_2_34_x86_64.whl
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Download URL	mp4_py-2026.1.0-cp314-cp314t-manylinux_2_34_aarch64.whl
Size	767.7 kB
Tags	CPython 3.14 CPython 3.14 free-threading Linux glibc 2.34+ ARM64
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Upload date	Jan 7, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	Yes
Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing platform: GitHub Actions
Publishing repository: github.com/shiguredo/mp4-py
Publishing commit: github.com/shiguredo/mp4-py/tree/c63550e6b93070cdac053ead5caf298ca2b0f60b

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Publishing configuration: github.com/shiguredo/mp4-py/blob/c63550e6b93070cdac053ead5caf298ca2b0f60b/.github/workflows/wheel.yml
Publishing logs: github.com/shiguredo/mp4-py/actions/runs/20773890522/attempts/1

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Release files / mp4_py-2026.1.0-cp314-cp314t-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/mp4-py
Publishing commit: github.com/shiguredo/mp4-py/tree/c63550e6b93070cdac053ead5caf298ca2b0f60b

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Release files / mp4_py-2026.1.0-cp314-cp314-win_amd64.whl

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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/mp4-py
Publishing commit: github.com/shiguredo/mp4-py/tree/c63550e6b93070cdac053ead5caf298ca2b0f60b

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Release files / mp4_py-2026.1.0-cp314-cp314-manylinux_2_39_x86_64.whl

Download URL	mp4_py-2026.1.0-cp314-cp314-manylinux_2_39_x86_64.whl
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Publishing platform: GitHub Actions
Publishing repository: github.com/shiguredo/mp4-py
Publishing commit: github.com/shiguredo/mp4-py/tree/c63550e6b93070cdac053ead5caf298ca2b0f60b

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Publishing configuration: github.com/shiguredo/mp4-py/blob/c63550e6b93070cdac053ead5caf298ca2b0f60b/.github/workflows/wheel.yml
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Release files / mp4_py-2026.1.0-cp314-cp314-manylinux_2_39_aarch64.whl

Download URL	mp4_py-2026.1.0-cp314-cp314-manylinux_2_39_aarch64.whl
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Uploaded via	`twine/6.1.0 CPython/3.13.7`

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Publishing repository: github.com/shiguredo/mp4-py
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