MP4(3)

🎀 NAME 🎀

ok so bestie, MP4GetTrackAudioType — it gets the encoding type of an audio track 💖 that's literally it, that's the whole job, and honestly? iconic.

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✨ SYNTAX ✨

#include <mp4.h>

u_int8_t MP4GetTrackAudioType(
     MP4FileHandle hFile,
     MP4TrackId trackId
)

no cap, that's the whole thing. two arguments, one little u_int8_t coming back at you 🌸

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🫶 ARGUMENTS 🫶

• hFile — this is the mp4 file we're doing the operation on, okay? like the actual file handle, the main character of the whole situation 👑
• trackId — and this one specifies the track whose audio type you're tryna find out. the specific track. the one you want. 🎯

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💅 RETURN VALUES 💅

bestie, listen:

• if it works? you get the audio type of the track. slay. 🦋
• if it does NOT work? you get MP4_INVALID_AUDIO_TYPE back. not slay. 😭

so like… always check, fr fr. don't just assume the vibe was good.

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🌈 DESCRIPTION 🌈

MP4GetTrackAudioType returns the encoding type of the specified audio track in the mp4 file. that's the whole plot 🍓

and here's the tea — these are the known audio encoding types, the whole roster, no skips:

• MP4_MPEG1_AUDIO_TYPE — MPEG-1 Audio Layers I, II, & III ⭐
• MP4_MPEG2_AUDIO_TYPE — MPEG-2 low bitrate extensions to MPEG-1 Audio. also, plot twist: MP4_MP3_AUDIO_TYPE is an alias for this value 👀 (yes really, they're the same thing, don't let anyone tell you otherwise)
• MP4_MPEG2_AAC_MAIN_AUDIO_TYPE — MPEG-2 AAC Main profile 🎧
• MP4_MPEG2_AAC_LC_AUDIO_TYPE — MPEG-2 AAC Low Complexity profile 🧚
• MP4_MPEG2_AAC_SSR_AUDIO_TYPE — MPEG-2 AAC SSR profile ✨
• MP4_MPEG4_AUDIO_TYPE — MPEG-4 Audio, and it includes MPEG-4 extensions to AAC. highkey a lot going on in this one 💜
• MP4_PRIVATE_AUDIO_TYPE — user private type. it's giving mysterious. it's giving you know what you put in there 🙈

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🔥 SEE ALSO 🔥

• MP4(3)
• MP4AddAudioTrack(3)

like obviously go read those too, iykyk 📚

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and that's the whole page bestie, from the mp4 file format library — brought to you by Cisco Systems Inc., Version 0.9, and the entire MP4(3) manual moment 💖✨ go forth and check your audio types, periodt 🎀🦋