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DLL

avcodec-lav-57.dll

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

(19 Files Available)
Last Updated
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Repository Analysis

Company
FFmpeg Project
Product
FFmpeg
Description
FFmpeg codec library
Architecture
x86 (32 bit) x86-64 (64 bit)
Metadata Consensus
15/19 Files 78.9%
Higher percentages indicate stronger agreement across versions. Browse repository metadata to compare variant differences.

Companies

  • FFmpeg Project 15
  • Unknown 4

Products

  • FFmpeg 15
  • Unknown 4

Descriptions

  • FFmpeg codec library 15
  • Unknown 4

Frequently Asked Questions

What is avcodec-lav-57.dll?

Metadata analysis shows avcodec-lav-57.dll is a Dynamic Link Library (DLL) developed by FFmpeg Project for FFmpeg and is described as “FFmpeg codec library” .

DLL files (Dynamic Link Libraries) are shared core modules used by Windows programs to run efficiently without duplicating code. Most errors occur because the DLL is missing, corrupted, or outdated.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 missing DLL errors?
1

Software Fix

Fully uninstall and reinstall the program causing the error. If you are not sure what program is broken, look at the available file metadata above for hints. If a clean reinstall fails, download and install the DLL file manually.

2

Windows System Fix

Make sure Windows is fully updated. To repair system files automatically, right-click the Start menu, open PowerShell (Admin), and run these two commands in order:

Step A DISM /Online /Cleanup-Image /RestoreHealth
Step B sfc /scannow
How do I install DLL files?
1

Download & Extract

Download the file, right-click the folder, and extract all files to your computer.

2

Install the .DLL

Move the extracted DLL file into the root folder of the software that is giving you the error (where its .exe file is located), or place it in the system directory below:

32-bit → C:\Windows\SysWOW64
64-bit → C:\Windows\System32
3

Restart the Program

Close and reopen the program or game so Windows can look for and load the new DLL file.

How do I register DLL files?

Most DLL files do not need registration. However, if your file is a COM component and requires explicit system registration, follow these steps:

1

Open Terminal

Right-click the Start menu and open PowerShell (Admin) or Command Prompt (Admin).

2

Run Command

Type the command below for your file type and press Enter. You can drag and drop the DLL file directly into the terminal window to fill its path automatically.

64-bit regsvr32 "C:\path\to\filename.dll"
32-bit C:\Windows\SysWOW64\regsvr32 "C:\path\to\filename.dll"

Latest Uploads

Browse all files to filter by metadata and to view the latest version available.

NEW Verified
avcodec-lav-57.dll
by FFmpeg Project
for FFmpeg
FFmpeg codec library
Version: 57.67.100
Product Version: 3.2.git
Language: U.S. English (1033)
Uploaded: Aug 28, 2026   Size: 10.5MB
SHA256: bb452324b96867f660deb0721cdd554f413c133673241893db23774cef8ba6bd
SHA1: 7d50717100bf5757dbf6f38b8a7a78971bae9674
MD5: 810d8abdc113723f0520071acbcb108c
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
Verified
avcodec-lav-57.dll
by FFmpeg Project
for FFmpeg
FFmpeg codec library
Version: 57.102.100
Product Version: git-2020-01-13-62fdf4b
Language: U.S. English (1033)
Uploaded: Oct 29, 2025   Size: 12.1MB
SHA256: 36dd061a44da4101cf4cefede0f971fc336bc5aa98d3b3c255885044e9853dce
SHA1: 69f4558153cc42abad3803fc822429203f8508e6
MD5: a64acb738bd9b165d618349de7261219
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
Verified
avcodec-lav-57.dll
by FFmpeg Project
for FFmpeg
FFmpeg codec library
Version: 57.102.100
Product Version: 3.3.git
Language: U.S. English (1033)
Uploaded: Sep 19, 2025   Size: 10.5MB
SHA256: 4e00921eb3f1ae040d0a8a3c4b723faa01eb3b264e9600a1e964b5879625a7e2
SHA1: 162c59c22e7568f1b575bcf8518f0863542b3038
MD5: 16370f9fdc34a80919526539c7b3a115
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
Verified
avcodec-lav-57.dll
Incomplete Metadata
Language: U.S. English (1033)
Uploaded: Jul 15, 2024   Size: 10.8MB
SHA256: 420a6200dc7995f39efda17a55322ad775d1b2b6396e3b67e67dc10bdc5c55c3
SHA1: 480e3e48a65e2c91155a72c532291b45f9eccc16
MD5: 3fb3c5af7d6c4db3c9dcfc5d3bdf707e
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD
Verified
avcodec-lav-57.dll
by FFmpeg Project
for FFmpeg
FFmpeg codec library
Version: 57.96.101
Product Version: git-2017-05-29-b36a7c9d57
Language: U.S. English (1033)
Uploaded: Jul 7, 2024   Size: 10.7MB
SHA256: 320121ec1c5cdfc1432bbfc4428d1017ca29ab1017b078c5d930a34a840c905b
SHA1: d2f1f56756592a60032cc614c2eb97969572370d
MD5: 2c4fd8d493ab7fddade556a839cae31a
x86 – 32 Bit
IA-32, 32-bit
DOWNLOAD