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MP4 at a glance
MP4
MP4 grew out of the MPEG-4 and ISO Base Media File Format lineage, which helped make it both standards-based and commercially pervasive.
BPG at a glance
BPG
BPG arrived in the mid-2010s when image engineers were looking for better post-JPEG compression before AVIF and JPEG XL had ecosystem momentum.
Format comparison
| Feature | MP4 | BPG |
|---|---|---|
| File type | Video | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2001 | 2014 |
| Inventor | ISO/IEC MPEG | Fabrice Bellard |
| Status | active | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Camera raw data | Not supported | Not supported |
| HDR support | Not supported | Supported |
| Streaming ready | Supported | Not supported |
When to use each format
When to use MP4
- Your source file is already in MP4.
- Preserve source expectations before exporting to BPG.
- MP4 is commonly used in video workflows.
When to use BPG
- Your target workflow expects BPG.
- Improve delivery compatibility with BPG.
- BPG is commonly used in image workflows.
FAQs
Why convert MP4 to BPG?
High-efficiency image encoding for maximum compression at JPEG-class quality, image compression research, and specialized pipelines where HEVC infrastructure is available.
What changes when converting MP4 to BPG?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to BPG adds animation support. Moving to BPG adds HDR content. Moving to BPG removes streaming delivery.
What should I review after converting MP4 to BPG?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.