/usr/include/mp4v2/track_prop.h is in libmp4v2-dev 2.0.0~dfsg0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#define MP4V2_TRACK_PROP_H
/**************************************************************************//**
*
* @defgroup mp4_track_prop MP4v2 Track Property
* @{
*
*****************************************************************************/
/* specific track properties */
MP4V2_EXPORT
bool MP4HaveTrackAtom(
MP4FileHandle hFile,
MP4TrackId trackId,
const char* atomname );
/** Get the track type.
*
* MP4GetTrackType gets the type of the track with the specified track id.
*
* Note: the library does not provide a MP4SetTrackType function, the
* track type needs to be specified when the track is created, e.g.
* MP4AddSystemsTrack(MP4_OCI_TRACK_TYPE).
*
* Known track types are:
* @li #MP4_OD_TRACK_TYPE
* @li #MP4_SCENE_TRACK_TYPE
* @li #MP4_AUDIO_TRACK_TYPE
* @li #MP4_VIDEO_TRACK_TYPE
* @li #MP4_HINT_TRACK_TYPE
* @li #MP4_CNTL_TRACK_TYPE
* @li #MP4_TEXT_TRACK_TYPE
* @li #MP4_CLOCK_TRACK_TYPE
* @li #MP4_MPEG7_TRACK_TYPE
* @li #MP4_OCI_TRACK_TYPE
* @li #MP4_IPMP_TRACK_TYPE
* @li #MP4_MPEGJ_TRACK_TYPE
*
* @param hFile handle of file for operation.
* @param trackId id of track for operation.
*
* @return On success, a string indicating track type. On failure, NULL.
*/
MP4V2_EXPORT
const char* MP4GetTrackType(
MP4FileHandle hFile,
MP4TrackId trackId );
MP4V2_EXPORT
const char* MP4GetTrackMediaDataName(
MP4FileHandle hFile,
MP4TrackId trackId );
/*
* MP4GetTrackMediaDataOriginalFormat is to be used to get the original
* MediaDataName if a track has been encrypted.
*/
MP4V2_EXPORT
bool MP4GetTrackMediaDataOriginalFormat(
MP4FileHandle hFile,
MP4TrackId trackId,
char* originalFormat,
uint32_t buflen );
MP4V2_EXPORT
MP4Duration MP4GetTrackDuration(
MP4FileHandle hFile,
MP4TrackId trackId );
/** Get the time scale of a track.
*
* MP4GetTrackTimeScale returns the time scale of the specified track in
* the mp4 file. The time scale determines the number of clock ticks per
* second for this track.
*
* @param hFile handle of file for operation.
* @param trackId id of track for operation.
*
* @return timescale (ticks per second) of the track in the mp4 file.
*/
MP4V2_EXPORT
uint32_t MP4GetTrackTimeScale(
MP4FileHandle hFile,
MP4TrackId trackId );
/** Set the time scale of a track.
*
* MP4SetTrackTimeScale sets the time scale of the specified track in the
* mp4 file. The time scale determines the number of clock ticks per
* second for this track.
*
* Typically this value is set once when the track is created. However
* this call can be used to modify the value if that is desired. Since
* track sample durations are expressed in units of the track time scale,
* any change to the time scale value will effect the real time duration
* of the samples.
*
* @param hFile handle of file for operation.
* @param trackId id of track for operation.
* @param timeScale desired time scale for the track.
*
* @return <b>true</b> on success, <b>false</b> on failure.
*/
MP4V2_EXPORT
bool MP4SetTrackTimeScale(
MP4FileHandle hFile,
MP4TrackId trackId,
uint32_t value );
/** Get ISO-639-2/T language code of a track.
* The language code is a 3-char alpha code consisting of lower-case letters.
*
* @param hFile handle of file for operation.
* @param trackId id of track for operation.
* @param code buffer to hold 3-char+null (4-bytes total).
*
* @return <b>true</b> on success, <b>false</b> on failure.
*/
MP4V2_EXPORT
bool MP4GetTrackLanguage(
MP4FileHandle hFile,
MP4TrackId trackId,
char* code );
/** Set ISO-639-2/T language code of a track.
* The language code is a 3-char alpha code consisting of lower-case letters.
*
* @param hFile handle of file for operation.
* @param trackId id of track for operation.
* @param code 3-char language code.
*
* @return <b>true</b> on success, <b>false</b> on failure.
*/
MP4V2_EXPORT
bool MP4SetTrackLanguage(
MP4FileHandle hFile,
MP4TrackId trackId,
const char* code );
/** Get track name.
*
* MP4GetTrackName gets the name of the track via udta.name property.
*
* @param hFile handle of file for operation.
* @param trackId id of track for operation.
*
* @return <b>true</b> on success, <b>false</b> on failure.
*/
MP4V2_EXPORT
bool MP4GetTrackName(
MP4FileHandle hFile,
MP4TrackId trackId,
char** name );
/** Set track name.
*
* MP4SetTrackName sets the name of the track via udta.name property.
* The udta atom is created if needed.
*
* @param hFile handle of file for operation.
* @param trackId id of track for operation.
*
* @return <b>true</b> on success, <b>false</b> on failure.
*/
MP4V2_EXPORT
bool MP4SetTrackName(
MP4FileHandle hFile,
MP4TrackId trackId,
const char* name );
MP4V2_EXPORT
uint8_t MP4GetTrackAudioMpeg4Type(
MP4FileHandle hFile,
MP4TrackId trackId );
MP4V2_EXPORT
uint8_t MP4GetTrackEsdsObjectTypeId(
MP4FileHandle hFile,
MP4TrackId trackId );
/* returns MP4_INVALID_DURATION if track samples do not have a fixed duration */
MP4V2_EXPORT
MP4Duration MP4GetTrackFixedSampleDuration(
MP4FileHandle hFile,
MP4TrackId trackId );
MP4V2_EXPORT
uint32_t MP4GetTrackBitRate(
MP4FileHandle hFile,
MP4TrackId trackId );
MP4V2_EXPORT
bool MP4GetTrackVideoMetadata(
MP4FileHandle hFile,
MP4TrackId trackId,
uint8_t** ppConfig,
uint32_t* pConfigSize );
MP4V2_EXPORT
bool MP4GetTrackESConfiguration(
MP4FileHandle hFile,
MP4TrackId trackId,
uint8_t** ppConfig,
uint32_t* pConfigSize );
MP4V2_EXPORT
bool MP4SetTrackESConfiguration(
MP4FileHandle hFile,
MP4TrackId trackId,
const uint8_t* pConfig,
uint32_t configSize );
/* h264 information routines */
MP4V2_EXPORT
bool MP4GetTrackH264ProfileLevel(
MP4FileHandle hFile,
MP4TrackId trackId,
uint8_t* pProfile,
uint8_t* pLevel );
MP4V2_EXPORT
bool MP4GetTrackH264SeqPictHeaders(
MP4FileHandle hFile,
MP4TrackId trackId,
uint8_t*** pSeqHeaders,
uint32_t** pSeqHeaderSize,
uint8_t*** pPictHeader,
uint32_t** pPictHeaderSize );
MP4V2_EXPORT
bool MP4GetTrackH264LengthSize(
MP4FileHandle hFile,
MP4TrackId trackId,
uint32_t* pLength );
MP4V2_EXPORT
MP4SampleId MP4GetTrackNumberOfSamples(
MP4FileHandle hFile,
MP4TrackId trackId );
MP4V2_EXPORT
uint16_t MP4GetTrackVideoWidth(
MP4FileHandle hFile,
MP4TrackId trackId );
MP4V2_EXPORT
uint16_t MP4GetTrackVideoHeight(
MP4FileHandle hFile,
MP4TrackId trackId );
MP4V2_EXPORT
double MP4GetTrackVideoFrameRate(
MP4FileHandle hFile,
MP4TrackId trackId );
MP4V2_EXPORT
int MP4GetTrackAudioChannels(
MP4FileHandle hFile,
MP4TrackId trackId );
MP4V2_EXPORT
bool MP4IsIsmaCrypMediaTrack(
MP4FileHandle hFile,
MP4TrackId trackId );
/* generic track properties */
MP4V2_EXPORT
bool MP4HaveTrackAtom(
MP4FileHandle hFile,
MP4TrackId trackId,
const char* atomName );
MP4V2_EXPORT
bool MP4GetTrackIntegerProperty(
MP4FileHandle hFile,
MP4TrackId trackId,
const char* propName,
uint64_t* retvalue );
MP4V2_EXPORT
bool MP4GetTrackFloatProperty(
MP4FileHandle hFile,
MP4TrackId trackId,
const char* propName,
float* ret_value );
MP4V2_EXPORT
bool MP4GetTrackStringProperty(
MP4FileHandle hFile,
MP4TrackId trackId,
const char* propName,
const char** retvalue );
MP4V2_EXPORT
bool MP4GetTrackBytesProperty(
MP4FileHandle hFile,
MP4TrackId trackId,
const char* propName,
uint8_t** ppValue,
uint32_t* pValueSize );
MP4V2_EXPORT
bool MP4SetTrackIntegerProperty(
MP4FileHandle hFile,
MP4TrackId trackId,
const char* propName,
int64_t value );
MP4V2_EXPORT
bool MP4SetTrackFloatProperty(
MP4FileHandle hFile,
MP4TrackId trackId,
const char* propName,
float value );
MP4V2_EXPORT
bool MP4SetTrackStringProperty(
MP4FileHandle hFile,
MP4TrackId trackId,
const char* propName,
const char* value );
MP4V2_EXPORT
bool MP4SetTrackBytesProperty(
MP4FileHandle hFile,
MP4TrackId trackId,
const char* propName,
const uint8_t* pValue,
uint32_t valueSize);
/** @} ***********************************************************************/
#endif /* MP4V2_TRACK_PROP_H */
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