Video Formats Is There a Best Video File Format? 10 Top Video Formats 5 Ways to Change Videos to Any Format Lossless Video Format: 7 Popular Formats and How to Choose All You Need To Know About MP4 To MOV Conversion Choosing Your Codec: AVC (H.264) vs. HEVC (H.265) Decoding the Future: x264 vs. x265 Mastering HEVC: The Future-Ready Video Compression Standard Pixel Perfect: H.264 VS H.265 Explained FFmpeg: Features, Use Cases, and Pros/Cons You Should Know VP9 vs. H.264 What Are Container File Formats (Media Containers)? VP8 vs VP9: 8 Key Differences and How to Choose What Is the M4A Format? | M4A vs. MP3 vs. WAV What Is MPEG-DASH? And MPEG-DASH vs. HLS What Are Video Subtitles? Common Formats and Best Practices H.264 Video Encoding: How It Works, Benefits, and 9 Best Practices QuickTime File Format (MOV): Apple’s MPEG-4 Predecessor MP4 Format (MPEG-4 Part 14): How It Works, Pros and Cons MKV Format: How It Works and How It Compares to MP4 AVI Format: Should You Still Use AVI? Windows Media Video (WMV) Format: What You Should Know HD Format: History of HD Video and 8 Formats You Should Know M4V Format: How It Works and MP4 vs. MPV FLV Format: Security Concerns and 5 Reasons to Switch to MP4 Top Six Web-Video Formats of 2024 What Is Video Transcoding? Video Frame Rates Explained Along With Tips for Picking the Right FPS A Primer on Video Codecs Open-Source and Royalty-Free AV1 Compresses Video Efficiently and Effectively Convert Video Formats: Six Essential Features of Video-Conversion Tools OGG Format: An In-Depth Look WebM Format: Basic Facts, Compatibility, and WebM vs. MP4

OGG Format: An In-Depth Look

OGG format header image

What is the OGG Format?

OGG is a free, open-source multimedia container format that’s used to store and play audio and video files, as well as text and metadata. It’s designed for efficient streaming and manipulation of high-quality digital multimedia, and is unrestricted by software patents. OGG is the native file and stream format for the Xiph.org multimedia codecs and is the recommended format for audio and video on Wikimedia Commons. Ogg files can be played using many music players and audio software programs, including VLC, Windows Media Player (with Directshow filter), MPlayer, Xion Audio Player, Audials One, and Adobe Audition. OGG files can also be played online through Google Drive. OGG audio files often use a lossy encoding protocol called Vorbis, which deletes some information from the files. The file quality can be set between -2 and 10, with 0 being similar to the quality of a phone call. The amount of data loss depends on the compression level, but Ogg is generally considered to have better sound quality and file size than MP3.

Here are some major characteristics of OGG files:

Versatility in Media Data: One of the standout features of the OGG format is its versatility. It can house various types of media data, including audio, video, text (such as captions), and metadata. This capability makes OGG a comprehensive solution for diverse multimedia applications. 

Preference in Professional Circles: Many music professionals consider the OGG format to be a more efficient and superior alternative to MP3, especially in scenarios that demand high-quality audio playback. This preference is attributed to OGG’s advanced encoding scheme, which delivers higher sound quality than MP3 at the same level of compression. 

Local Playback and Streaming: OGG’s utility extends beyond streaming applications. It is also widely used for local playback of media files, offering versatility in both online and offline media consumption contexts. 

Conversion to Other Formats: In practical use, OGG files can easily be converted to other popular formats, such as MP3, using online converters. This adaptability enhances the usability of OGG files across various platforms and devices that may not natively support the OGG format.

This article, part of our series on video formats, covers the following topics:

OGG format supporting image

OGG Containers and OGG Vorbis

OGG files are made up of one or more pages, also known as containers. Each page begins with the ASCII characters OggS followed by a version number. On identifying those bytes at the beginning of a file, the player becomes aware that the file is an OGG container, which performs bounding and error checking for streaming data.

The OGG format supports true streaming with no need to load the entire file before playing, eliminating memory limitations when large files are being played. Streams can last for hours, and only the part currently playing must be loaded into memory.

What Are VorbisComments?

Metadata is important for media files, because it contains such information as song title, composer and performer names, and copyright details. OGG supports several metadata formats, the most common one being VorbisComment, which consists of key-value pairs of up to 16 exabytes, an almost limitless size.

How Are OGG Files Encoded?

As a popular encoding protocol for OGG audio files, Vorbis is lossy, i.e., irreversible. To achieve more compression, Vorbis deletes certain information for the files.

“Video

Whether the data loss is significant depends on the level of compression. Vorbis encodes with variable bitrate. You can set the file quality between -2 (or -1, depending on the software) and 10, with 0 being equivalent to the quality of a phone call (64 KB/sec.). A quality setting of 10 requires about 500 KB/sec.

Vorbis delivers higher quality than MP3 at the same level of compression. The encoding depth, typically 16 bits, can be deeper. A Vorbis stream, which can carry up to 255 channels, supports mono, stereo, subwoofer channels, quadraphonic channels, and so on.

Related content: Video Transcoding: A Practical Guide

What Is Multitrack OGG (MOGG)?

MOGG is a package for storing OGG files that are considered tracks of the same album or collection.

OGG File Architecture and OGG Header Structure

In the OGG format, each page or container has a header with information that helps players recognize the page as part of an OGG file and then put the containers together, called a bitstream, to play an audio file.

The OGG format enables multiplexing, i.e., multiple bitstreams in a single file and bitstreams listed in the order of the seek time of the audio data. You can also append bitstreams to existing files so that the bitstreams are decoded in sequence, a step known as chaining.

The following image shows the structure and content of an OGG page header.

OGG format supporting image 2/>

The header contains these details:

  • Capture pattern (32 bits): A pattern that starts with OggS and that contains a unique number with which players can resynchronize in case of data loss.
  • Version (8 bits): The OGG bitstream’s version number.
  • Header type (8 bits): The page type, which can be a continuation of a previous page (encoded as 0), the beginning of the stream (1), or the end of the stream (2).
  • Granule position (64 bits): A time marker, whose exact meaning is determined by the codec.
  • Bitstream serial number (32 bits): The role of the current page in the logical bitstream, e.g., a value that denotes that the current page contains Vorbis (audio) content.
  • Page sequence number (32 bits): A serial number that denotes the position of the current page in the stream and that enables implementations that detect data loss.
  • Checksum (32 bits): A value that enables verification of whether the data is corrupted. Pages that fail the checksum are discarded.
  • Page segments (8 bits): The number of segments in the current page (up to 255).
  • Segment table: The length of each segment (between 0-255 bytes) in the page body.

OGG Versus MP3: Differences and Pros and Cons

MP3 reduces the file size and maintains the original quality by means of lossy compression. Even though both MP3 and Vorbis OGG can reach a maximum bitrate of 320 KB/sec., Vorbis OGG sounds better than MP3.

OGG files are smaller in size than WAV files. They are also superior to MP3 files in terms of sound quality and file size, and offer a high bitrate that matches the highest setting of most streaming services.

Why the quality difference? Because for all that Vorbis also encodes with lossy compression, it applies a more advanced encoding scheme, which results in higher sound quality. Moreover, OGG files usually have better quality sound than MP3 due to its more efficient compression codec. However, while MP3 works with a wider range of devices and operating systems, it’s worth noting that MP3 has a broader compatibility with platforms like Mac and iOS. Nonetheless, MP3 is preferred by many because it is compatible with all platforms.

Here are the main differences between OGG and MP3:

  • Licensing: OGG is a free, open-source format; MP3 is copyrighted.
  • Codecs: OGG is suitable for audio, video, text (captions), and metadata; MP3, primarily for audio.
  • Size: OGG produces a smaller file size than MP3.
  • Compression: Both OGG and MP3 encode with lossy compression.
  • Compatibility: OGG is compatible with music-streaming platforms; MP3 is universally compatible.
  • Quality: Even though both OGG and MP3 can reach a maximum of 320 KB/sec., OGG at 192 KB/sec. is superior to MP3.
  • Channels: OGG offers two to 256 channels; MP3, two separate channels and joint stereo.

Here are the main pros and cons of OGG:

Pros:

  • OGG can store more audio channels than MP3.
  • The OGG format saves various files, including video, audio, and text.
  • OGG is free and open-source.

Cons:

  • OGG is not universally compatible.
  • The OGG format causes high battery consumption.

Here are the main pros and cons of MP3:

Pros:

  • MP3 is universally compatible.
  • The MP3 format generates smaller sizes than OGG.
  • MP3 is relatively easy to transform.

Cons:

  • MP3 yields a lower quality than OGG when reaching higher bitrates.
  • MP3 is susceptible to malware or virus attacks.

Automated Video-Format Conversion With Cloudinary

Formats and codecs abound for encoding videos, with some formats doing a better job   compressing and reducing file size without impairing visual quality. Since different browsers support different video formats and codecs, the best solution to save bandwidth and optimize delivery time is to deliver the best format for the requesting browser.

Setting the fetch_format parameter to auto (f_auto in URLs) causes Cloudinary to automatically select the format and codec based on the requesting browser. For example, Chrome users would most likely receive a VP9-encoded WebM file; Safari users, an HEVC-encoded MP4 file. If a browser does not support either of those formats, Cloudinary delivers the video as an H.264-encoded MP4 file, which works in almost all browsers.

In brief, Cloudinary seamlessly performs the following tasks based on the parameters in delivery URLs:

  • Dynamically transform videos on the fly to any format, style, and dimension.
  • Apply effects and other visual enhancements.
  • Optimize videos so that they are of minimal file size and high quality for an enhanced user experience and nominal bandwidth.

Interested? Have a try for free by first signing up for a free Cloudinary account.

QUICK TIPS
Kimberly Matenchuk
Cloudinary Logo Kimberly Matenchuk

In my experience, here are tips that can help you better leverage the OGG format and other video formats:

  1. Leverage OGG for multi-channel audio projects If you’re working on projects that require multiple audio channels, such as surround sound or complex audio arrangements, OGG is ideal. It supports up to 255 channels, providing flexibility for detailed soundscapes.
  2. Use Vorbis for high-quality audio streaming Vorbis OGG offers superior sound quality compared to MP3 at the same bitrate. This makes it an excellent choice for audio streaming platforms that prioritize sound fidelity while maintaining efficient file sizes.
  3. Consider battery consumption for mobile applications Be mindful that OGG can be more battery-intensive than other formats, particularly on mobile devices. If you’re developing mobile apps or streaming services, test OGG’s impact on battery life and consider alternatives like MP3 for less critical applications.
  4. Integrate OGG for open-source projects Since OGG is free and open-source, it’s a perfect fit for projects that require licensing flexibility. This can be particularly useful for educational tools, public projects, and community-driven platforms where cost and openness are key factors.
  5. Test compatibility across different platforms OGG is not universally supported like MP3. Ensure that your audience can access OGG files across different devices and platforms by conducting thorough compatibility tests, or offer alternative formats for devices that don’t support OGG natively.
  6. Use Cloudinary for automatic format conversion Automating the format conversion process with tools like Cloudinary can save time and ensure that your media is always delivered in the most efficient format for the user’s device. This is particularly useful for dynamic content that needs to be accessible across various browsers and devices.
  7. Employ OGG for high-efficiency video streaming OGG’s ability to handle various media types (audio, video, text) makes it suitable for complex streaming scenarios. Utilize it for platforms that require robust, high-quality video streaming with integrated captions or metadata.
  8. Optimize OGG settings for your use case Adjust the Vorbis quality settings (-2 to 10) based on your specific needs. For example, use higher settings for music streaming where quality is crucial, and lower settings for voice recordings or podcasts where smaller file sizes may be more important.
  9. Combine OGG with modern web technologies Take advantage of OGG’s streaming capabilities by combining it with modern web technologies like HTML5. This can enhance the performance of your web applications, especially for audio and video content.
  10. Stay updated on browser support for OGG Browser support for media formats evolves. Regularly check and update your strategies to ensure that your use of OGG remains optimal as browser and device capabilities change.

These tips will help you make the most of the OGG format, ensuring that your media files are efficiently delivered, high quality, and compatible with the widest possible audience.

Last updated: Aug 31, 2024