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- Changes in xxxx
- ---------------
- Change to MP4Create and MP4Modify to allow flags to be set for 64 bit
- to allow Quicktime compatibility
- Change to MP4CloneTrack and MP4CopyTrack for when you copy a hint
- track - you must now specify the track ID in the new file for the
- reference track.
- Changes in 0.9.9
- ---------------------------
- Added support for ISMA's Ismacrypt specification:
- MP4GetTrackEsdsObjectTypeId replaces MP4GetTrackAudioType
- and MP4GetTrackVideoType.
- MP4EncAndCloneTrack is used instead of MP4CloneTrack to encrypt a track
- while cloning it.
- MP4EncAndCopyTrack is used instead of MP4CopyTrack to encrypt a track
- while copying it.
- MP4AddEncAudioTrack adds an encrypted audio track.
- MP4AddEncVideoTrack adds an encrypted video track.
-
- Changes in 0.9.8
- ---------------------------
- MP4WriteSample - changed "uint8_t * data" to "const uint8_t *data"
- Changes from 0.9.6
- ---------------------------
- Modified
- MP4SetHintTrackRtpPayload
- payload parameter to get a dynamic payload is MP4_SET_DYNAMIC_PAYLOAD
- (value 0xff) instead of 0.
- Changes from 0.9.5 to 0.9.6
- ---------------------------
- Modified
- MP4GetHintTrackRtpPayload
- MP4SetHintTrackRtpPayload
- get/set the encoding params (a=rtpmap <payloadname>/<timescale>[/<encoding params>])
- Changes from 0.9.4 to 0.9.5
- ---------------------------
- Added
- MP4GetTrackAudioMpeg4Type()
- Returns MPEG-4 Audio type (e.g. AAC, CELP, HXVC, MIDI, etc.)
- MP4ReadSampleFromTime()
- Variant of MP4ReadSample() that uses time instead of sample id
- (basically MP4GetSampleIdFromTime() + MP4ReadSample())
- MP4Info()
- MP4FileInfo()
- Returns summary info on tracks in file (from util/mp4info.cpp)
- The following functions add support for mp4 authoring/editting:
- MP4CloneTrack()
- Make a copy of a specified track, without media samples
- MP4CopyTrack()
- Make a copy of a specified track, with or without media samples
- MP4CopySample()
- Make a copy of a specified media sample
- MP4AddTrackEdit()
- Add a track edit list element
- MP4DeleteTrackEdit()
- Delete a track edit list element
- MP4GetTrackNumberOfEdits()
- Return the number of track edit list elements
- MP4GetTrackEditTotalDuration()
- Return the total duration of the track edit list
- MP4GetTrackEditStart()
- Return the edit start time for the edit list element
- MP4GetTrackEditMediaStart()
- Return the media start time for the edit list element
- MP4SetTrackEditMediaStart()
- Set the media start time for the edit list element
- MP4GetTrackEditDuration()
- Return the edit list element duration
- MP4SetTrackEditDuration()
- Set the edit list element duration
- MP4GetTrackEditDwell()
- Return the edit list element dwell parameter, see man page
- MP4SetTrackEditDwell()
- Set the edit list element dwell parameter, see man page
- MP4ReadSampleFromEditTime()
- Apply the edit list timeline to reading a sample
- MP4GetSampleIdFromEditTime()
- Return the sample id for a specified time on the edit list timeline
- Modified
- MP4GetSampleIdFromTime()
- Semantic change - now returns sample id corresponding
- to specified time, not the sample id with the smallest positive
- start time difference from the specified time.
- Changes from 0.9.3 to 0.9.4
- ---------------------------
- Added
- MP4GetTrackVideoFrameRate()
- Returns video frame rate (average rate if video is variable rate).
- MP4GetTrackBitRate()
- Returns track average bit rate in bits-per-second.
- Changes from 0.9.2 to 0.9.3
- ---------------------------
- Modified
- MP4Optimize()
- Second argument, newFileName, can now be NULL in which case
- a temporary file is created for the results of the optimization.
- Upon success, the existing file specified with the first argument
- is overwritten with the optimized file.
- MP4GetNumberOfTracks()
- MP4FindTrackId()
- Both have a new optional argument, subType, with default value 0.
- The subType can be specified for audio and video tracks to
- match only a specific encoding type. See man page for more details.
- Added
- MP4GetTrackVideoWidth()
- Returns video width in pixels. See man page for caveat.
- MP4GetTrackVideoHeight()
- Returns video height in pixels. See man page for caveat.
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