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How data is stored in a multimedia file

Files on a computer (या एक ऑप्टिकल डिस्क पर की तरह डीवीडी या BluRay) need to contain more than 1 डेटा के प्रकार. A typical movie will include at least 1 वीडियो "धारा" और एक ऑडियो "धारा". Most movies include multiple languages and subtitles, each of which requires an additional stream. Each of these streams is effectively a file in its own right, but they are all stored together within a “container” which also starts each of them at the right time (subtitles don’t start immediately at the start of a movie for example) and keeps them in sync as well as storing meta-data about each of them – i.e. what language they are, what framerate and resolution the video is, and what compression standards have been used.

वीडियो धाराओं

Video streams contain only the video part of the movie. They are compressed using a particular system and there should be meta-data about their resolution, फ्रेम रेट, if they are interlaced or progressive and details of the encoding system used.

ऑडियो धाराओं

Audio streams contain only the audio part of the movie. There are usually multiple audio streams included with the movie and each has its own stream. They can be compressed in a range of ways or in some cases they are uncompressed raw audio. उनके बिटरेट के बारे में मेटा डेटा नहीं होना चाहिए, संकल्प, language, number of channels and details of the encoding system used.

अन्य धाराओं (उदा.. बंद कैप्शन)

Many movies contain other streams, most commonly closed captions (also known as subtitles). These come in several formats, but are typically just text with time stamps. They are so small relatively that no compression is used. There should be meta-data about their language.


Containers which bundle all the streams together

All of the streams that comprise the movie are bundled together and kept in sync by a container. The container should contain (और प्रदान) प्रत्येक धारा के बारे में सभी मेटा डेटा. The container also enables the collection of streams to be stored as a single file. The most common container formats are VOB (द्वारा इस्तेमाल किया डीवीडी) और M2TS (BluRay के द्वारा प्रयोग किया जाता). Other common container formats on PC are TS, एमपीईजी, AVI के, MKV, इस WMV, WTV, डीवीआर-एमएस और MP4. The obsolete HD-डीवीडी प्रारूप का प्रयोग किया EVO के कंटेनरों.

तुम क्या सोचते हो? हमें एक टिप्पणी के नीचे छोड़! आप सदस्यता के लिए चाहते हैं, तो ऊपर दाईं ओर मेनू पर लिंक का उपयोग करें सदस्यता लें. आप नीचे दिए गए सामाजिक लिंक का उपयोग करके अपने दोस्तों के साथ इस साझा कर सकते हैं. चियर्स.

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