DLL

avformat-lav-57.dll

Download and install avformat-lav-57.dll to fix missing or corrupted DLL errors.

(20 Files Available)
Last Updated

Repository Analysis

Company
FFmpeg Project
Product
FFmpeg
Description
FFmpeg container format library
Architecture
x86 (32 bit) x86-64 (64 bit)
Metadata Consensus
16/20 Files 80%
Higher percentages indicate stronger agreement across versions. Browse repository metadata to compare differences between variants.

Frequently Asked Questions

What is avformat-lav-57.dll?

Metadata analysis shows avformat-lav-57.dll is a Dynamic Link Library (DLL) and is described as FFmpeg container format library .

DLL files (Dynamic Link Library) are used by Windows programs to share code and resources. It allows multiple applications to use the same functions, improving performance and reducing redundancy. Most errors occur because the DLL is missing, corrupted, or outdated. In many cases, reinstalling the related application, repairing windows or replacing the DLL resolves the issue.

How do I fix avformat-lav-57.dll errors?

Most errors involving avformat-lav-57.dll occur because the DLL is missing, corrupted, or outdated. In many cases, reinstalling the related application or replacing the DLL resolves the issue. The steps below cover the most common ways to fix DLL errors.

  • Software DLLs: Fully un-install the application and then re-install the latest version. If you are not sure what software is causing problems, check available metadata for clues. If this does not solve your issue, you can try downloading and installing the DLL manually.
  • Windows DLLs: Make sure Windows is fully updated, then open Windows Terminal or PowerShell as an administrator. Repair the Windows component store so SFC can pull clean files DISM /Online /Cleanup-Image /RestoreHealth and then scan all system files sfc /scannow to automatically repair problems.
How do I install avformat-lav-57.dll?

To install avformat-lav-57.dll, place the DLL file in the same folder as the application’s .exe file. If you are not sure which version (32-bit or 64-bit) to use, you can safely install both. If you dont know the application or this does not work, install the DLL to the appropriate Windows system folder.

  • Software Install (Recommended): If known, place the DLL file next to the application’s .exe C:\path\to\exe\avformat-lav-57.dll.
  • 64-bit Install: Place 64-bit DLL files in the System32 folder, C:\Windows\System32\avformat-lav-57.dll
  • 32-bit Install: Place 32-bit DLL files in the SysWOW64 folder, C:\Windows\SysWOW64\avformat-lav-57.dll
How do I register avformat-lav-57.dll?

Most DLL files do not need registration, but some DLLs are COM components and must be registered to work correctly. If registration is required, open Windows Terminal or PowerShell as an administrator.

  • 64-Bit DLL: Register the DLL file regsvr32 "C:\path\to\avformat-lav-57.dll". (Drag a DLL to automatically fill the full path).
  • 32 Bit DLL: If you are registering a 32-bit DLL on 64-bit Windows, C:\Windows\SysWOW64\regsvr32 "C:\path\to\avformat-lav-57.dll".

Latest Releases

avformat-lav-57.dll
by FFmpeg Project
for FFmpeg
FFmpeg container format library
Version: 57.76.100 Verified
Product Version: git-2020-01-13-62fdf4b
Language: U.S. English (1033)
Uploaded: Oct 29, 2025   Size: 2.3MB
SHA256: dd7a08b86b6e26195f940693793812f1c12bf904767a3737c08d4e2ce0d22198
SHA1: dc8e14cdb8ba0f7bad8dd39e4c912a886125bf6c
MD5: c0330df6eb34a6b9ac6f0b162326bfda
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
avformat-lav-57.dll
by FFmpeg Project
for FFmpeg
FFmpeg container format library
Version: 57.76.100 Verified
Product Version: 3.3.git
Language: U.S. English (1033)
Uploaded: Sep 19, 2025   Size: 1.7MB
SHA256: 558bb3ab9e0aed0c2cbd8876ba2fc71ddf45580dccc0adecac91ba6cf945ccc3
SHA1: 3e9a48b80ad496add111fc4581c204b67a4ab3ea
MD5: 61dc9cc87d10e4a4e10bcecba19634fd
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
avformat-lav-57.dll
Incomplete Metadata
Language: U.S. English (1033)
Uploaded: Jul 15, 2024   Size: 1.7MB
SHA256: fa55d3c4c4abc7eb8e38381eeff32bfce060a6773995e180c6ed07f180336c7a
SHA1: 122317395e3e7c95395ed9d82084db5ffef7f553
MD5: dda9f3ae25c4bba1251008d24aa317f7
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
avformat-lav-57.dll
by FFmpeg Project
for FFmpeg
FFmpeg container format library
Version: 57.72.101 Verified
Product Version: git-2017-05-29-b36a7c9d57
Language: U.S. English (1033)
Uploaded: Jul 8, 2024   Size: 1.7MB
SHA256: e632721513ce6db12ae55b6cbba6b9292099f48952d3c3be95d4a7c0c0c7c19e
SHA1: bff04035084d3b42c2fb36334a686d6b59da28fb
MD5: bdb8aaa8216e8eda6621b348b5f9c9b8
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
avformat-lav-57.dll
Incomplete Metadata
Uploaded: Jun 28, 2024   Size: 1.3MB
SHA256: 8849516c19a8ef582fae69ce91f3e5a1471e060a377726789e701255c50e7968
SHA1: 4d447d3fb1a3064f9e9c340f060f315a44665bea
MD5: 79b9990fb09be247a60f4f4a91290ebe
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD