Changes between Version 55 and Version 56 of SponsoringPrograms/GSoC/2015


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Timestamp:
Mar 8, 2015, 8:05:39 PM (5 years ago)
Author:
richardpl
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  • SponsoringPrograms/GSoC/2015

    v55 v56  
    5757
    5858This section lists well-defined projects that have one or more available mentors. If you are new to FFmpeg, and have relatively little experience with multimedia, you should favor a mentored project rather than propose your own. Contact the respective mentor(s) to get more information about the project and the requested qualification task.
     59
     60== AAC Encoder Improvements ==
     61
     62[[Image(wiki:SponsoringPrograms/GSoC/2014:showspectrum.jpg, right, nolink)]]
     63
     64'''Description:''' Currently, FFmpeg contains an experimental native AAC encoder (native meaning that it doesn't depend on external libraries), but it is lacking in terms of extension support, since it currently only implements AAC-LC (the low-complexity profile). Extending feature support of FFmpeg's native encoder is needed to make it competitive with other encoders.
     65
     66    - AAC native encoder missing extensions
     67      - Implement [http://www.birds-eye.net/definition/acronym/?id=1163388183 AAC PNS]
     68      - Implement [http://wiki.hydrogenaudio.org/index.php?title=Joint_stereo#Intensity_Stereo intensity stereo]
     69      - Implement AAC LTP (long term prediction)
     70      - Implement [http://en.wikipedia.org/wiki/Spectral_band_replication AAC SBR] (spectral band replication)
     71
     72'''Qualification Task:'''
     73   - Proof-of-concept PNS. Simplest strategy possible (replace zeroes by noise) and implement bitstream syntax.
     74   - Fix assertion error mentioned in [https://trac.ffmpeg.org/ticket/2686#comment:322 #2686] (ffmpeg_anmr_error2.flac, assertion error on {{{diff >= 0 && diff <= 120}}}).
     75
     76'''Prerequisites:''' C coding skills, basic familiarity with git, knowledge about transform based audio coding are necessary.
     77
     78'''Mentor:''' Claudio Freire (''klaussfreire'' in g mail)
     79
     80'''Backup Mentor:''' Michael Niedermayer (''michaelni'' in #ffmpeg-devel on Freenode IRC, michaelni@gmx.at)
     81
    5982
    6083== API regression testing ==
     
    211234
    212235'''Backup Mentor:''' Reynaldo Verdejo (reynaldo in #ffmpeg-devel on Freenode IRC, R Verdejo on g mail), Sascha Sommer (saschasommer at freenet de)
    213 
    214 
    215 == AAC Encoder Improvements ==
    216 
    217 [[Image(wiki:SponsoringPrograms/GSoC/2014:showspectrum.jpg, right, nolink)]]
    218 
    219 '''Description:''' Currently, FFmpeg contains an experimental native AAC encoder (native meaning that it doesn't depend on external libraries), but it is lacking in terms of extension support, since it currently only implements AAC-LC (the low-complexity profile). Extending feature support of FFmpeg's native encoder is needed to make it competitive with other encoders.
    220 
    221     - AAC native encoder missing extensions
    222       - Implement [http://www.birds-eye.net/definition/acronym/?id=1163388183 AAC PNS]
    223       - Implement [http://wiki.hydrogenaudio.org/index.php?title=Joint_stereo#Intensity_Stereo intensity stereo]
    224       - Implement AAC LTP (long term prediction)
    225       - Implement [http://en.wikipedia.org/wiki/Spectral_band_replication AAC SBR] (spectral band replication)
    226 
    227 '''Qualification Task:'''
    228    - Proof-of-concept PNS. Simplest strategy possible (replace zeroes by noise) and implement bitstream syntax.
    229    - Fix assertion error mentioned in [https://trac.ffmpeg.org/ticket/2686#comment:322 #2686] (ffmpeg_anmr_error2.flac, assertion error on {{{diff >= 0 && diff <= 120}}}).
    230 
    231 '''Prerequisites:''' C coding skills, basic familiarity with git, knowledge about transform based audio coding are necessary.
    232 
    233 '''Mentor:''' Claudio Freire (''klaussfreire'' in g mail)
    234 
    235 '''Backup Mentor:''' Michael Niedermayer (''michaelni'' in #ffmpeg-devel on Freenode IRC, michaelni@gmx.at)
    236236
    237237