[prev in list] [next in list] [prev in thread] [next in thread]
List: amarok-devel
Subject: Re: Review Request: MusicBrainz and MusicDNS services support
From: "Sergey Ivanov" <123kash () gmail ! com>
Date: 2010-09-24 13:06:41
Message-ID: 20100924130641.4423.45712 () vidsolbach ! de
[Download RAW message or body]
[Attachment #2 (multipart/alternative)]
> On 2010-09-22 02:22:07, Leo Franchi wrote:
> > src/CMakeLists.txt, line 791
> > <http://git.reviewboard.kde.org/r/100000/diff/1/?file=6#file6line791>
> >
> > I'm not sure about the hard dependency of Xine. We don't depend on any \
> > particular audio backend since we use Phonon---what is the feasibility \
> > of using Phonon's AudioDataOutput for extracting the audio data, do you \
> > know? Some Amarok devs have been looking in to using it for audio \
> > fingerprinting, but it wasn't completely bug-free last I checked.
>
> Sergey Ivanov wrote:
> I didn't know that Phonon has such class, thank you.
>
> Sergey Ivanov wrote:
> Hmm, i can not find any way to make it just "dump" decoded date, \
> everything this class can supply - dumps currently played portions of a \
> track. And i didn't find a way to control playback to make It faster in \
> case of decoding. Guess I have to find another way.
>
> Leo Franchi wrote:
> Yeah i'm not so sure how well this will work. I don't mind the Xine \
> dependency as long as (a) it's very clear it depends on Xine (b) There \
> are CMakeLists checks for xine that enable it only if Xine is found, and \
> disable it if Xine is not found. I don't know wh at the rest of the team \
> thinks.
> Mark Kretschmann wrote:
> I'm not keen on the xine dependency. First of all xine is hardly \
> maintained (they have like one developer left or so), which poses \
> problems with bit-rot and possibly security issues. Then, it _is_ an \
> extra dependency, with a whole slew of implicit dependencies that xine \
> pulls in. Next issue, is xine cross-platform? Last I checked it did not \
> run on Windows, and that automatically rules it out.
> So I realize that Phonon is unfortunately (not yet?) up to the task. We \
> should talk to the Phonon devs about a possible extension here.
> As an alternative, how about using FFmpeg? We already depend on it for \
> Teo's Transcoding patch. It's cross-platform. It's well maintained, and \
> widely available on all distros. Sounds like a good match to me!
>
> Sergey Ivanov wrote:
> Already began to rewrite it to using separate libraries (libmad, flac, \
> libogg etc..), so there is no more hard xine dependence. Btw found out \
> that in last (mb both posted) diffs, checks for libofa availability was \
> missed from CMake script.
> Sergey Ivanov wrote:
> TBH I'm newbie at multimedia programming, I thought that FFmpeg only \
> supports mpeg compressing. Thank you, now I don't need to invent a \
> bicycle (thanks God, that I only finished with libmad support =) ).
Done. Now It runs on ffmpeg.
- Sergey
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
http://git.reviewboard.kde.org/r/100000/#review6
-----------------------------------------------------------
On 2010-09-24 13:00:36, Sergey Ivanov wrote:
>
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://git.reviewboard.kde.org/r/100000/
> -----------------------------------------------------------
>
> (Updated 2010-09-24 13:00:36)
>
>
> Review request for amarok.
>
>
> Summary
> -------
>
> MusicBrainz and MusicDNS services support implementation.
> There are three independent parts:
> 1. MusicBrainzFinder class - used to make requests to MusicBrainz server \
> and process replies. All relies process in separate threads by \
> MusicBrainzXmlParser class. For a search uses guessed from a file name \
> track information. No external dependences required. 2. MusicDNSFinder \
> class - used for the same purpose as MusicBrainzFinder, but i communicate \
> with musicdns server and receives track's PUID as a reply. Replies ether \
> process in separate threads by MusicDNSXmlParser class. Fingerprints \
> generated by libofa (the only external dependence in entire patch). For \
> track decompressing (MusicDNSAudioDecoder class) used xine engine (I'm \
> not sure is It a good choice, but amarok based on phonon media-engine, \
> that uses xine. So we don't deed to pull any other dependences). Received \
> PUIDs sends to MusicBrainzFinder class, for a search routine. 3. View. \
> All classes used for store (MusicBrainzTagsModel, \
> MusicBrainzTrackListModel) and display (MusicBrainzTagsModelDelegate) \
> purposes.
>
> Diffs
> -----
>
> CMakeLists.txt 191b02e
> cmake/modules/FindFFmpeg.cmake PRE-CREATION
> cmake/modules/FindLibOFA.cmake PRE-CREATION
> config-amarok.h.cmake 981b7b7
> src/CMakeLists.txt 42614ff
> src/core-impl/capabilities/timecode/TimecodeEditCapability.h 6e15303
> src/core-impl/capabilities/timecode/TimecodeEditCapability.cpp 8205d45
> src/core-impl/collections/mediadevicecollection/MediaDeviceMeta.h e35b57f \
> src/core-impl/collections/mediadevicecollection/MediaDeviceMeta.cpp \
> 9be62d9 src/core-impl/collections/proxycollection/ProxyCollectionMeta.cpp \
> 8bdbf75 src/core-impl/collections/sqlcollection/CapabilityDelegateImpl.cpp \
> b5cb083 src/core-impl/collections/sqlcollection/SqlMeta.h ee3ec21
> src/core-impl/collections/sqlcollection/SqlMeta.cpp 2da0333
> src/core-impl/meta/file/File.h 6d4d395
> src/core-impl/meta/file/File.cpp 30cd2ff
> src/core-impl/meta/file/TagLibUtils.cpp 15b64a4
> src/core-impl/meta/proxy/MetaProxy.h 2ef3805
> src/core-impl/meta/proxy/MetaProxy.cpp 341e076
> src/core/capabilities/EditCapability.h 79344bd
> src/dialogs/MusicBrainzTagger.h PRE-CREATION
> src/dialogs/MusicBrainzTagger.cpp PRE-CREATION
> src/dialogs/MusicBrainzTagger.ui PRE-CREATION
> src/dialogs/TagDialog.h 50cd801
> src/dialogs/TagDialog.cpp 26d4eb8
> src/dialogs/TagDialogBase.ui 9974d0b
> src/musicbrainz/DecodedAudioData.h PRE-CREATION
> src/musicbrainz/DecodedAudioData.cpp PRE-CREATION
> src/musicbrainz/MusicBrainzFinder.h PRE-CREATION
> src/musicbrainz/MusicBrainzFinder.cpp PRE-CREATION
> src/musicbrainz/MusicBrainzMetaClasses.h PRE-CREATION
> src/musicbrainz/MusicBrainzMetaClasses.cpp PRE-CREATION
> src/musicbrainz/MusicBrainzTagsModel.h PRE-CREATION
> src/musicbrainz/MusicBrainzTagsModel.cpp PRE-CREATION
> src/musicbrainz/MusicBrainzTagsModelDelegate.h PRE-CREATION
> src/musicbrainz/MusicBrainzTagsModelDelegate.cpp PRE-CREATION
> src/musicbrainz/MusicBrainzTrackListModel.h PRE-CREATION
> src/musicbrainz/MusicBrainzTrackListModel.cpp PRE-CREATION
> src/musicbrainz/MusicBrainzXmlParser.h PRE-CREATION
> src/musicbrainz/MusicBrainzXmlParser.cpp PRE-CREATION
> src/musicbrainz/MusicDNSAudioDecoder.h PRE-CREATION
> src/musicbrainz/MusicDNSAudioDecoder.cpp PRE-CREATION
> src/musicbrainz/MusicDNSFinder.h PRE-CREATION
> src/musicbrainz/MusicDNSFinder.cpp PRE-CREATION
> src/musicbrainz/MusicDNSXmlParser.h PRE-CREATION
> src/musicbrainz/MusicDNSXmlParser.cpp PRE-CREATION
> tests/core-impl/collections/proxycollection/TestProxyCollectionMeta.cpp \
> 55d1914
> Diff: http://git.reviewboard.kde.org/r/100000/diff
>
>
> Testing
> -------
>
>
> Thanks,
>
> Sergey
>
>
[Attachment #5 (text/html)]
<html>
<body>
<div style="font-family: Verdana, Arial, Helvetica, Sans-Serif;">
<table bgcolor="#f9f3c9" width="100%" cellpadding="8" style="border: 1px \
#c9c399 solid;"> <tr>
<td>
This is an automatically generated e-mail. To reply, visit:
<a href="http://git.reviewboard.kde.org/r/100000/">http://git.reviewboard.kde.org/r/100000/</a>
</td>
</tr>
</table>
<br />
<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; \
padding-left: 10px;"> <p style="margin-top: 0;">On September 22nd, 2010, \
2:22 a.m., <b>Leo Franchi</b> wrote:</p> <blockquote style="margin-left: \
1em; border-left: 2px solid #d0d0d0; padding-left: 10px;">
<table width="100%" border="0" bgcolor="white" style="border: 1px solid \
#C0C0C0; border-collapse: collapse; margin: 2px padding: 2px;"> <thead>
<tr>
<th colspan="4" bgcolor="#F0F0F0" style="border-bottom: 1px solid \
#C0C0C0; font-size: 9pt; padding: 4px 8px; text-align: left;"> <a \
href="/r/100000/diff/1/?file=6#file6line791" style="color: black; \
font-weight: bold; text-decoration: underline;">src/CMakeLists.txt</a> \
<span style="font-weight: normal;">
(Diff revision 1)
</span>
</th>
</tr>
</thead>
<tbody style="background-color: #e4d9cb; padding: 4px 8px; text-align: \
center;"> <tr>
<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: \
0; "></pre></td>
</tr>
</tbody>
<tbody>
<tr>
<th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" \
align="right"><font size="2"></font></th> <td bgcolor="#c5ffc4" \
width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; \
"></pre></td> <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; \
border-right: 1px solid #C0C0C0;" align="right"><font \
size="2">791</font></th> <td bgcolor="#c5ffc4" width="50%"><pre \
style="font-size: 8pt; line-height: 140%; margin: 0; "> \
xine</pre></td> </tr>
</tbody>
</table>
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; \
white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: \
break-word;">I'm not sure about the hard dependency of Xine. We \
don't depend on any particular audio backend since we use Phonon---what \
is the feasibility of using Phonon's AudioDataOutput for extracting the \
audio data, do you know? Some Amarok devs have been looking in to using it \
for audio fingerprinting, but it wasn't completely bug-free last I \
checked.</pre> </blockquote>
<p>On September 22nd, 2010, 9:28 a.m., <b>Sergey Ivanov</b> wrote:</p>
<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; \
padding-left: 10px;"> <pre style="white-space: pre-wrap; white-space: \
-moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: \
break-word;">I didn't know that Phonon has such class, thank you.</pre> \
</blockquote>
<p>On September 22nd, 2010, 12:01 p.m., <b>Sergey Ivanov</b> wrote:</p>
<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; \
padding-left: 10px;"> <pre style="white-space: pre-wrap; white-space: \
-moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: \
break-word;">Hmm, i can not find any way to make it just "dump" \
decoded date, everything this class can supply - dumps currently played \
portions of a track. And i didn't find a way to control playback to \
make It faster in case of decoding. Guess I have to find another way.</pre>
</blockquote>
<p>On September 24th, 2010, 1:11 a.m., <b>Leo Franchi</b> wrote:</p>
<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; \
padding-left: 10px;"> <pre style="white-space: pre-wrap; white-space: \
-moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: \
break-word;">Yeah i'm not so sure how well this will work. I don't \
mind the Xine dependency as long as (a) it's very clear it depends on \
Xine (b) There are CMakeLists checks for xine that enable it only if Xine \
is found, and disable it if Xine is not found. I don't know wh at the \
rest of the team thinks.</pre> </blockquote>
<p>On September 24th, 2010, 5:17 a.m., <b>Mark Kretschmann</b> wrote:</p>
<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; \
padding-left: 10px;"> <pre style="white-space: pre-wrap; white-space: \
-moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: \
break-word;">I'm not keen on the xine dependency. First of all xine is \
hardly maintained (they have like one developer left or so), which poses \
problems with bit-rot and possibly security issues. Then, it _is_ an extra \
dependency, with a whole slew of implicit dependencies that xine pulls in. \
Next issue, is xine cross-platform? Last I checked it did not run on \
Windows, and that automatically rules it out.
So I realize that Phonon is unfortunately (not yet?) up to the task. We \
should talk to the Phonon devs about a possible extension here.
As an alternative, how about using FFmpeg? We already depend on it for \
Teo's Transcoding patch. It's cross-platform. It's well \
maintained, and widely available on all distros. Sounds like a good match \
to me! </pre>
</blockquote>
<p>On September 24th, 2010, 5:54 a.m., <b>Sergey Ivanov</b> wrote:</p>
<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; \
padding-left: 10px;"> <pre style="white-space: pre-wrap; white-space: \
-moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: \
break-word;">Already began to rewrite it to using separate libraries \
(libmad, flac, libogg etc..), so there is no more hard xine dependence. Btw \
found out that in last (mb both posted) diffs, checks for libofa \
availability was missed from CMake script.</pre> </blockquote>
<p>On September 24th, 2010, 6:11 a.m., <b>Sergey Ivanov</b> wrote:</p>
<blockquote style="margin-left: 1em; border-left: 2px solid #d0d0d0; \
padding-left: 10px;"> <pre style="white-space: pre-wrap; white-space: \
-moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: \
break-word;">TBH I'm newbie at multimedia programming, I thought that \
FFmpeg only supports mpeg compressing. Thank you, now I don't need to \
invent a bicycle (thanks God, that I only finished with libmad support =) \
).</pre> </blockquote>
</blockquote>
<pre style="margin-left: 1em; white-space: pre-wrap; white-space: \
-moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: \
break-word;">Done. Now It runs on ffmpeg.</pre> <br />
<p>- Sergey</p>
<br />
<p>On September 24th, 2010, 1 p.m., Sergey Ivanov wrote:</p>
<table bgcolor="#fefadf" width="100%" cellspacing="0" cellpadding="8" \
style="background-image: \
url('http://git.reviewboard.kde.orgrb/images/review_request_box_top_bg.png'); \
background-position: left top; background-repeat: repeat-x; border: 1px \
black solid;"> <tr>
<td>
<div>Review request for amarok.</div>
<div>By Sergey Ivanov.</div>
<p style="color: grey;"><i>Updated 2010-09-24 13:00:36</i></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description \
</h1> <table width="100%" bgcolor="#ffffff" cellspacing="0" \
cellpadding="10" style="border: 1px solid #b8b5a0"> <tr>
<td>
<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: \
-moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: \
break-word;">MusicBrainz and MusicDNS services support implementation. \
There are three independent parts: 1. MusicBrainzFinder class - used to \
make requests to MusicBrainz server and process replies. All relies process \
in separate threads by MusicBrainzXmlParser class. For a search uses \
guessed from a file name track information. No external dependences \
required. 2. MusicDNSFinder class - used for the same purpose as \
MusicBrainzFinder, but i communicate with musicdns server and receives \
track's PUID as a reply. Replies ether process in separate threads by \
MusicDNSXmlParser class. Fingerprints generated by libofa (the only \
external dependence in entire patch). For track decompressing \
(MusicDNSAudioDecoder class) used xine engine (I'm not sure is It a \
good choice, but amarok based on phonon media-engine, that uses xine. So we \
don't deed to pull any other dependences). Received PUIDs sends to \
MusicBrainzFinder class, for a search routine. 3. View. All classes used \
for store (MusicBrainzTagsModel, MusicBrainzTrackListModel) and display \
(MusicBrainzTagsModelDelegate) purposes.</pre> </td>
</tr>
</table>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> \
</h1> <ul style="margin-left: 3em; padding-left: 0;">
<li>CMakeLists.txt <span style="color: grey">(191b02e)</span></li>
<li>cmake/modules/FindFFmpeg.cmake <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>cmake/modules/FindLibOFA.cmake <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>config-amarok.h.cmake <span style="color: grey">(981b7b7)</span></li>
<li>src/CMakeLists.txt <span style="color: grey">(42614ff)</span></li>
<li>src/core-impl/capabilities/timecode/TimecodeEditCapability.h <span \
style="color: grey">(6e15303)</span></li>
<li>src/core-impl/capabilities/timecode/TimecodeEditCapability.cpp <span \
style="color: grey">(8205d45)</span></li>
<li>src/core-impl/collections/mediadevicecollection/MediaDeviceMeta.h \
<span style="color: grey">(e35b57f)</span></li>
<li>src/core-impl/collections/mediadevicecollection/MediaDeviceMeta.cpp \
<span style="color: grey">(9be62d9)</span></li>
<li>src/core-impl/collections/proxycollection/ProxyCollectionMeta.cpp \
<span style="color: grey">(8bdbf75)</span></li>
<li>src/core-impl/collections/sqlcollection/CapabilityDelegateImpl.cpp \
<span style="color: grey">(b5cb083)</span></li>
<li>src/core-impl/collections/sqlcollection/SqlMeta.h <span style="color: \
grey">(ee3ec21)</span></li>
<li>src/core-impl/collections/sqlcollection/SqlMeta.cpp <span \
style="color: grey">(2da0333)</span></li>
<li>src/core-impl/meta/file/File.h <span style="color: \
grey">(6d4d395)</span></li>
<li>src/core-impl/meta/file/File.cpp <span style="color: \
grey">(30cd2ff)</span></li>
<li>src/core-impl/meta/file/TagLibUtils.cpp <span style="color: \
grey">(15b64a4)</span></li>
<li>src/core-impl/meta/proxy/MetaProxy.h <span style="color: \
grey">(2ef3805)</span></li>
<li>src/core-impl/meta/proxy/MetaProxy.cpp <span style="color: \
grey">(341e076)</span></li>
<li>src/core/capabilities/EditCapability.h <span style="color: \
grey">(79344bd)</span></li>
<li>src/dialogs/MusicBrainzTagger.h <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/dialogs/MusicBrainzTagger.cpp <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/dialogs/MusicBrainzTagger.ui <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/dialogs/TagDialog.h <span style="color: \
grey">(50cd801)</span></li>
<li>src/dialogs/TagDialog.cpp <span style="color: \
grey">(26d4eb8)</span></li>
<li>src/dialogs/TagDialogBase.ui <span style="color: \
grey">(9974d0b)</span></li>
<li>src/musicbrainz/DecodedAudioData.h <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/DecodedAudioData.cpp <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicBrainzFinder.h <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicBrainzFinder.cpp <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicBrainzMetaClasses.h <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicBrainzMetaClasses.cpp <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicBrainzTagsModel.h <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicBrainzTagsModel.cpp <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicBrainzTagsModelDelegate.h <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicBrainzTagsModelDelegate.cpp <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicBrainzTrackListModel.h <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicBrainzTrackListModel.cpp <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicBrainzXmlParser.h <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicBrainzXmlParser.cpp <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicDNSAudioDecoder.h <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicDNSAudioDecoder.cpp <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicDNSFinder.h <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicDNSFinder.cpp <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicDNSXmlParser.h <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>src/musicbrainz/MusicDNSXmlParser.cpp <span style="color: \
grey">(PRE-CREATION)</span></li>
<li>tests/core-impl/collections/proxycollection/TestProxyCollectionMeta.cpp \
<span style="color: grey">(55d1914)</span></li>
</ul>
<p><a href="http://git.reviewboard.kde.org/r/100000/diff/" \
style="margin-left: 3em;">View Diff</a></p>
</td>
</tr>
</table>
</div>
</body>
</html>
_______________________________________________
Amarok-devel mailing list
Amarok-devel@kde.org
https://mail.kde.org/mailman/listinfo/amarok-devel
[prev in list] [next in list] [prev in thread] [next in thread]
Configure |
About |
News |
Add a list |
Sponsored by KoreLogic