MP4 - Online Linux Manual PageSection : 3
Updated : Version 0.9
Source : Cisco Systems Inc.
Note : MP4 File Format Library
NAMEMP4FileInfo − Return a textual summary of an mp4 file
SYNTAX#include <mp4.h> char* MP4FileInfo(
const char* mp4FileName,
MP4TrackId trackId = MP4_INVALID_TRACK_ID
);
ARGUMENTShFile
Specifies the name of the mp4 file to which the operation applies. trackId Specifies a track for which a summary is desired. If the value is MP4_INVALID_TRACK_ID, the summary info is created for all tracks in the mp4 file.
RETURN VALUESUpon success, a malloc'ed string containing the summary info. Upon an error, NULL.
DESCRIPTIONMP4FileInfo provides a string that contains a textual summary of the contents of an mp4 file. This includes the track id's, the track type, and track specific information. For example, for a video track, media encoding, image size, frame rate, and bitrate are summarized. Note that the returned string is malloc'ed, so it is the caller's responsibility to free() the string to prevent memory leaks. Also note that the returned string contains newlines and tabs which may or may not be desirable. The following is an example of the output of MP4Info(): Track TypeInfo
1 videoMPEG−4 Simple @ L3, 119.625 secs, 1008 kbps, 352x288 @ 24.00 fps
2 audioMPEG−4, 119.327 secs, 128 kbps, 44100 Hz
3 hintPayload MP4V−ES for track 1
4 hintPayload mpeg4−generic for track 2
5 odObject Descriptors
6 sceneBIFS
SEE ALSOMP4(3) MP4Info(3) 0
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Online Linux Manual Page : Version : Online Linux Manual Page - Fedora.40 - march=x86-64 - mtune=generic - 24.12.05
Online Linux Manual Page : Library : lib_c - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
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