MP4 vs TS — Differences, File Size & When to Use Each

MP4 vs TS

Um comparativo detalhado de MP4 Video e MPEG Transport Stream — tamanho de arquivo, qualidade, compatibilidade e qual escolher de acordo com seu fluxo de trabalho.

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MP4

MP4 Video

Video Files

MP4 is the most universally supported video container format. It typically uses H.264 or H.265 video codecs with AAC audio, providing an excellent balance of quality and file size across all devices and platforms.

Sobre os arquivos MP4

MPEG Transport Stream

Video Files

TS (Transport Stream) is used for broadcasting, streaming, and recording live TV.

Sobre os arquivos TS

Comparativo de vantagens

MP4 Vantagens

Universal playback — every browser, phone, TV, game console, and editing suite reads MP4.
Supports modern codecs (H.264, H.265, AV1) with no container changes.
Progressive streaming works with the "moov atom" at the start of the file.
Carries subtitles, chapters, multiple audio tracks, and embedded metadata.
ISO-standardized (ISO/IEC 14496-14) and patent-licensable via MPEG LA.

TS Vantagens

Designed for noisy channels — packet-level error correction.
Multi-program: one TS can carry several TV channels.
Native format for all digital TV broadcasts and HLS streaming.
Streaming-first: no need to download whole file to start playing.
30+ years of stable, deployed infrastructure.

Limitações

MP4 Limitações

Codec licensing (H.264, H.265) carries royalty costs for commercial use.
Streaming requires the moov atom at the start — a misplaced atom breaks web playback.
Not ideal for lossless or professional editing workflows (use ProRes or DNxHD instead).
Editing an MP4 almost always re-encodes, degrading quality.

TS Limitações

Packet overhead (~3% vs Program Stream).
Seek index is implicit — requires scanning for random access.
Multiple audio/subtitle selection requires parsing PMT (Program Map Tables).
fMP4 is gradually replacing TS for modern low-latency streaming.

Especificações técnicas

Especificação	MP4	TS
MIME type	video/mp4	video/mp2t
Container	ISO Base Media File Format (ISO/IEC 14496-12)	—
Common video codecs	H.264 (AVC), H.265 (HEVC), AV1, VP9	—
Common audio codecs	AAC, MP3, FLAC, Opus	—
Max file size	Practically ~16 TB; 2^63 bytes theoretical	—
Streaming	Supported with faststart (moov atom at front)	—
Extensions	—	.ts, .m2ts, .mts
Standard	—	ISO/IEC 13818-1 (MPEG-2 Systems)
Packet size	—	188 bytes (standard); 192 bytes (M2TS/Blu-ray)
Primary use	—	Broadcast TV + HLS streaming

Tamanhos típicos de arquivo

MP4

Smartphone video (1080p, 1 min) 60–120 MB
4K video (1 min, H.265) 200–400 MB
Streamed movie (90 min, H.264) 1–4 GB
Social clip (15s, H.264, 720p) 3–8 MB

TS

HLS video segment (6 seconds, 1080p) 2-5 MB
1 hour recorded TV (HD) 4-8 GB
Satellite transponder capture (1 min) ~300 MB

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Perguntas frequentes

MP4 (MPEG-4 Part 14) is the most universal video container format, standardized by ISO in 2001. It typically holds H.264 or H.265 video with AAC audio and supports subtitles, chapters, and metadata.

MP4 (MPEG-4 Part 14) is the most universal video container formato, padrãoized by ISO in 2001. It tipicamente holds H.264 ou H.265 video com AAC audio e suporta subtitles, chapters, e metadata.

MP4 files play on virtually every device and media player including VLC, Windows Media Player, QuickTime, and all web browsers. Smartphones and smart TVs also support MP4 natively.

MP4 arquivos reproduzir on virtually every device e media player including VLC, Windows Media Player, QuickTime, e all web browsers. Smartphones e smart TVs also support MP4 natively.

MP4 has broader device compatibility and is the standard for streaming and social media. MKV supports more audio tracks, subtitles, and codecs, making it better for archiving movies with multiple languages.

MP4 has broader device compatibilidade e is the padrão para streaming e social media. MKV suporta more audio tracks, subtitles, e codecs, making it better para archiving movies com multiple languages.