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What is Y4M?

Y4M (video/x-raw-yuv) uses lossless compression optimized for lossless video processing, codec testing, video production intermediates. YUV4MPEG2, uncompressed YCbCr 4:2:0 video stream for encoding pipelines

What is TS?

MPEG Transport Stream (TS) is a standard container for broadcast TV, DVR recordings, and digital video transmission.

When Should You Use Y4M vs TS?

Use Y4M When...

Y4M shines in lossless video processing, codec testing, video production intermediates scenarios. The pixel-perfect output meets the demands of professional production environments.

Use TS When...

Reach for TS when your priority is broadcast tv, dvr recordings, streaming — its efficient compression makes sharing fast and storage minimal.

Y4M vs TS: Key Differences

  • •Y4M uses lossless compression while TS uses lossy compression — this is the fundamental technical difference between the two formats.
  • •Moving from Y4M (lossy) to TS (lossy) means the output file will be significantly smaller — but at the cost of some visual fidelity.
  • •Alpha channel support: TS lacks transparency support, so semi-transparent pixels from the source will be lost.
  • •File sizes: Y4M files typically range N/A and TS files Large, suitable for broadcast quality.
  • •Y4M is optimized for lossless video processing, codec testing, video production intermediates while TS is designed for broadcast tv, dvr recordings, streaming — choose based on your specific workflow needs

Advantages of Y4M

  • ✓Y4M uses lossless compression tailored for Lossless video processing, codec testing, video production intermediates.
  • ✓Y4M is supported natively on virtually every device, browser, and operating system.
  • ✓Y4M files are bit-for-bit perfect, preserving every pixel and sample for professional work.
  • ✓Y4M integrates seamlessly with all major creative tools and workflows.

Advantages of TS

  • ✓TS uses lossy compression tailored for Broadcast TV, DVR recordings, streaming.
  • ✓TS is supported natively on virtually every device, browser, and operating system.
  • ✓TS files are compact and quick to transfer, even over slow connections.
  • ✓TS integrates seamlessly with all major creative tools and workflows.

Common Use Cases for Y4M to TS Conversion

  • Video archiving
  • Broadcast production
  • Video game cutscenes
  • Product demonstrations
  • Webinar recordings
  • Animated explainers

Industry Applications

Broadcast MediaVideo SurveillanceGamingLive EventsVideo ConferencingDigital Signage

Best Practices for Y4M to TS Conversion

  • →For Y4M to TS: encode at the target platform's native resolution — upscaling or downscaling adds unnecessary artifacts
  • →Test a short clip before converting the entire Y4M file — this confirms TS settings produce acceptable quality
  • →TS is widely supported but choose bitrate carefully to balance quality and file size
  • →Use constant bitrate (CBR) for streaming delivery and variable bitrate (VBR) for archival storage
  • →Keep the original file in case you need to re-encode with different settings
  • →Check audio sync after conversion — container changes can sometimes cause drift

Related Article

Video Compression Guide: Reduce File Size Without Losing Quality

Learn more about Y4M and TS formats in our detailed guide.

Troubleshooting Y4M to TS Conversion

  • !TS won't play on target device → check codec compatibility (H.264 has broadest support)
  • !Audio out of sync after Y4M to TS conversion → try re-muxing with a different container format
  • !TS quality is too low → increase the bitrate; for 1080p video, 8-15 Mbps is recommended
  • !File size increased converting Y4M to TS → lossless or higher-bitrate outputs naturally produce larger files

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About Y4M and TS

Y4M

Y4M (Y4M) - YUV4MPEG2, uncompressed YCbCr 4:2:0 video stream for encoding pipelines. Best for lossless video processing, codec testing, video production intermediates.

TS

TS (MPEG TS video) - MPEG Transport Stream, broadcast video container. Ideal for broadcast tv, dvr recordings, streaming.

Format Comparison

CompressionLossless → Lossy
TransparencyN/A
Use CaseConvert from lossless video processing, codec testing, video production intermediates to broadcast tv, dvr recordings, streaming
File Size~Large, suitable for broadcast quality after conversion

FAQs

Is converting Y4M to TS free?

Yes, GoConvertFile offers free conversion of Y4M to TS for files up to 100MB. No registration required.

How long does it take to convert Y4M to TS?

Most Y4M to TS conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.

What is TS best used for?

TS is ideal for broadcast tv, dvr recordings, streaming. MPEG Transport Stream, broadcast video container

Does converting Y4M to TS lose quality?

Yes, converting Y4M to TS uses lossy compression, which reduces file size by discarding some visual data. Set quality to 85-95% for a good balance of quality and file size.

What file size should I expect after converting Y4M to TS?

TS files are typically 50-80% smaller than Y4M files because TS uses efficient lossy compression. The exact reduction depends on quality settings.

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Tune output for this video conversion
80%
Smaller fileBetter quality