Changes between Version 6 and Version 7 of SponsoringPrograms/GSoC/2014
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- Jan 31, 2014, 1:09:14 AM (12 years ago)
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SponsoringPrograms/GSoC/2014
v6 v7 6 6 7 7 [https://developers.google.com/open-source/soc/ Google Summer of Code (GSoC)] is a program that offers students stipends to write code for open source projects. Through the guidance of mentors, students gain valuable experience interacting with and coding for open source projects like FFmpeg. Additionally, the project and its users benefit from code created from students who often continue contributing as developers. FFmpeg participated to several past editions ([http://wiki.multimedia.cx/index.php?title=FFmpeg_Summer_Of_Code_2006 2006], [http://wiki.multimedia.cx/index.php?title=FFmpeg_Summer_Of_Code_2007 2007], [http://wiki.multimedia.cx/index.php?title=FFmpeg_Summer_Of_Code_2008 2008], [http://wiki.multimedia.cx/index.php?title=FFmpeg_Summer_Of_Code_2009 2009], [http://wiki.multimedia.cx/index.php?title=FFmpeg_Summer_Of_Code_2010 2010], [http://wiki.multimedia.cx/index.php?title=FFmpeg_/_Libav_Summer_Of_Code_2011 2011], [http://wiki.multimedia.cx/index.php?title=FFmpeg_Summer_of_Code_2013 2013]), and we are looking forward to being involved this year. 8 Also please see the [http://www.google-melange.com/gsoc/events/google/gsoc2014 timeline].9 8 10 This is our ideas page for Google Summer of Code 2014. 9 This is our ideas page for Google Summer of Code 2014. See the [http://www.google-melange.com/gsoc/events/google/gsoc2014 GSoC Timeline] for important dates. 11 10 12 11 ---- … … 16 15 == Getting Started == 17 16 18 Get to know FFmpeg. If you are a student and interested in contributing to an FFmpeg GSoC project it is recommended to start by subscribing to the [http://ffmpeg.org/mailman/listinfo/ffmpeg-devel ffmpeg-devel] mailing-list, visiting our IRC channels ( ''#ffmpeg-devel'' and ''#ffmpeg''), and exploring the codebase and the development workflow. Feel free to [#ContactingFFmpeg contact us] if you have any questions.17 Get to know FFmpeg. If you are a student and interested in contributing to an FFmpeg GSoC project it is recommended to start by subscribing to the [http://ffmpeg.org/mailman/listinfo/ffmpeg-devel ffmpeg-devel] mailing-list, visiting our IRC channels (#ffmpeg-devel and #ffmpeg), and exploring the codebase and the development workflow. Feel free to [#ContactingFFmpeg contact us] if you have any questions. 19 18 20 19 1. '''Find a project.''' Listed on this page are mentored and unmentored projects. Mentored projects are well-defined and mentors have already volunteered. Unmentored projects are additional ideas that you may consider, but you will have to contact us to find a mentor. You may also propose your own project that may be a better match for your interest and skill level. … … 28 27 In order to get accepted you will be requested to complete a small task in the area you want to contribute. FFmpeg GSoC projects can be challenging, and a qualification task will show us that you are motivated and have the potential to finish a project. 29 28 30 The qualification task is usually shown in the project description. Contact the appointed mentors for assistance on getting a related qualification task or if you want to propose your own. See a list of Small FFmpeg Tasks or browse the FFmpeg Bug Trackerfor qualification task ideas.29 The qualification task is usually shown in the project description. Contact the appointed mentors for assistance on getting a related qualification task or if you want to propose your own. Browse the [https://trac.ffmpeg.org/ FFmpeg Bug Tracker] for qualification task ideas. 31 30 32 31 == Contacting FFmpeg == … … 35 34 36 35 * Mailing-list: [https://ffmpeg.org/mailman/listinfo/ffmpeg-devel/ ffmpeg-devel] 37 * IRC: ''#ffmpeg-devel''on Freenode36 * IRC: #ffmpeg-devel on Freenode 38 37 * FFmpeg GSoC Admins: TBA 39 38 … … 48 47 == FFv1 P frame support == 49 48 50 '''Description:''' FFv1 is one of the most efficient intra only lossless video codecs, your work will be to add support for P frames, that is for motion compensation and estimation (the existing motion estimation code in libavcodec can be reused here). And finetune it until the best compression rate is achived.49 '''Description:''' FFv1 is one of the most efficient intra-only lossless video codecs. Your work will be to add support for P frames with motion compensation and motion estimation support (the existing motion estimation code in libavcodec can be reused here). Then fine-tune it until the best compression rate is achieved. 51 50 52 '''Expected results:''' state of the art P frame support in the FFv1 encoder and decoder implementation.51 '''Expected results:''' State of the art P frame support in the FFv1 encoder and decoder implementation. 53 52 54 '''Prerequisites:''' C coding skills, basic familiarity with `git`, solid understanding of video coding especially with motion compensation.53 '''Prerequisites:''' C coding skills, basic familiarity with git, solid understanding of video coding especially with motion compensation. 55 54 56 '''Qualification Task:''' Implement support for simple P frames without motion compensation in FFv1. That is so that each frame stores the difference to the previous .55 '''Qualification Task:''' Implement support for simple P frames without motion compensation in FFv1. That is so that each frame stores the difference to the previous frame. 57 56 58 '''Mentor:''' Michael Niedermayer (michaelni onIRC)57 '''Mentor:''' Michael Niedermayer (michaelni at #ffmpeg-devel IRC) 59 58 60 59 '''Backup mentor:''' TBA … … 62 61 63 62 == Misc Libavfilter extension == 64 65 Image:Lavfi-gsoc-filter-vintage-illustration.jpg66 63 67 64 '''Description:''' Libavfilter is the FFmpeg filtering library. It currently supports audio and video filtering and generation support. This work may focus on porting, fixing, extending, or writing new audio and video filters from scratch. … … 75 72 - a lua scripting filter, which allows to implement filtering custom logic in lua 76 73 77 For more ideas check : trac libavfilter tickets.74 For more ideas check [https://trac.ffmpeg.org/query?status=!closed&component=avfilter libavfilter tickets] on the bug tracker. 78 75 79 76 '''Expected results:''' Write or port audio and video filters and possibly fix/extend libavfilter API and design when required. 80 77 81 '''Prerequisites:''' C coding skills, familiarity with git/source code control systems. Some background on DSP and image/sound processing techniques would be a bonus but is not strictly required.78 '''Prerequisites:''' C coding skills, basic familiarity with git. Some background on DSP and image/sound processing techniques would be a bonus but is not strictly required. 82 79 83 80 '''Qualification Task''': write or port one or more filters 84 81 85 '''Mentor:''' TBA possibly Stefano Sabatini (saste onIRC)82 '''Mentor:''' TBA possibly Stefano Sabatini (saste at #ffmpeg-devel IRC) 86 83 87 '''Backup mentor:''' Clément Bœsch (ubitux onIRC)84 '''Backup mentor:''' Clément Bœsch (ubitux at #ffmpeg-devel IRC) 88 85 89 86 == Subtitles == … … 94 91 '''Expected results:''' 95 92 96 - Add support for new subtitles formats. Example: a demuxer for .SUP files, just like VobSub but for Blu-Ray, or aVobSub muxer.93 - Add support for new subtitles formats. Example: a demuxer for .SUP files, just like !VobSub but for Blu-Ray, or a !VobSub muxer. 97 94 - Improve text subtitles decoders. Typically, this can be supporting advanced markup features in SAMI or WebVTT. 98 95 - Update the API to get rid of the clumsy internal text representation of styles … … 100 97 - BONUS: if everything goes well, the student will be allowed to add basic support for teletext 101 98 102 '''Prerequisites:''' C coding skills, familiarity with git/source code control systems. Some background in fansubbing area (notably ASS experience) would be a bonus but is not strictly required.99 '''Prerequisites:''' C coding skills, basic familiarity with git. Some background in fansubbing area (notably ASS experience) would be a bonus but is not strictly required. 103 100 104 101 '''Qualification Task:''' write one subtitles demuxer and decoder (for example support for Spruce subtitles format). This is in order to make sure the subtitles chain is understood. 105 102 106 '''Mentor:''' Clément Bœsch (ubitux onIRC)103 '''Mentor:''' Clément Bœsch (ubitux at #ffmpeg-devel IRC) 107 104 108 '''Backup Mentor:''' TBA, possibly Nicolas George (Cigaes onIRC)105 '''Backup Mentor:''' TBA, possibly Nicolas George (Cigaes at #ffmpeg-devel IRC) 109 106 110 107 == Postproc optimizations == 111 Image:PostProc.jpg112 108 113 109 '''Description:''' FFmpeg contains libpostproc, which is used to postprocess 8x8 DCT-MC based video and images (jpeg, mpeg-1/2/4, H.263 among others). The code though has been written a long time ago and its SIMD optimizations need to be updated to what modern CPUs support (AVX2 and SSE2+). … … 119 115 - Add Integer SSE2 and AVX2 optimizations for each existing MMX/MMX2/3dnow optimization in libpostproc. 120 116 121 '''Prerequisites:''' C coding skills, good x86 assembly coding skills, familiarity with git/source code control systems.117 '''Prerequisites:''' C coding skills, good x86 assembly coding skills, basic familiarity with git. 122 118 123 119 '''Qualification Task:''' convert 1 or 2 MMX2 functions to SSE2 and AVX2. 124 120 125 '''Mentor:''' Michael Niedermayer (michaelni onIRC)121 '''Mentor:''' Michael Niedermayer (michaelni at #ffmpeg-devel IRC) 126 122 127 '''Backup Mentor:''' TBA, possibly Stefano Sabatini (saste onIRC)123 '''Backup Mentor:''' TBA, possibly Stefano Sabatini (saste at #ffmpeg-devel IRC) 128 124 129 125 130 126 == Bayer RGB colorspaces == 131 Image:350px-Bayer_pattern_on_sensor.svg.png132 127 133 128 '''Description:''' Several image and video format store pixels using Bayer-pattern colorspaces. Supporting these format would broaden FFmpeg's applicability to RAW still and video photography processing. … … 150 145 '''Qualification Task:''' Implement a simple and working Bayer->RGB transform in libswscale 151 146 152 '''Mentor:''' TBA, possibly Peter Ross (pross-au onIRC)147 '''Mentor:''' TBA, possibly Peter Ross (pross-au at #ffmpeg-devel IRC) 153 148 154 '''Backup Mentor:''' Michael Niedermayer (michaelni onIRC)149 '''Backup Mentor:''' Michael Niedermayer (michaelni at #ffmpeg-devel IRC) 155 150 156 157 158 == Sample Project ==159 160 '''Description:''' Describe the project.161 162 '''Expected results:''' Create a foo decoder and add a test for the FFmpeg Automated Testing Environment (FATE).163 164 '''Prerequisites:''' C coding skills, basic familiarity with `git`.165 166 '''Qualification Task:''' A task that demonstrates that the student is qualified by skill and determination to proceed with the project.167 168 '''Mentor:''' Lou Logan (llogan on IRC)169 170 '''Backup mentor:''' TBA171 151 172 152 ---- … … 180 160 A student can propose a project. Ideas can also be found by browsing bugs and feature requests on our bug tracker. The work should last the majority of the GSoC duration, the task must be approved by the developers, and a mentor must be assigned. 181 161 182 Students can discuss an idea in the [https://ffmpeg.org/mailman/listinfo/ffmpeg-devel/ ffmpeg-devel] mailing-list, the ''#ffmpeg-devel''IRC channel, or contact the FFmpeg GSoC admins for more information.162 Students can discuss an idea in the [https://ffmpeg.org/mailman/listinfo/ffmpeg-devel/ ffmpeg-devel] mailing-list, the #ffmpeg-devel IRC channel, or contact the FFmpeg GSoC admins for more information.
