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