<p>I have the ISO week and year but how do I correctly convert that into two dates representing the start and end of that week?</p>

[{'answer_id': 70977, 'author': 'Dark Shikari', 'author_id': 11206, 'author_profile': 'https://Stackoverflow.com/users/11206', 'pm_score': 4, 'selected': True, 'text': '<p>mp4box if you want a dedicated tool; its probably the easiest way to go.  ffmpeg can do the job too.</p>\n'}, {'answer_id': 6302358, 'author': 'djeikyb', 'author_id': 659715, 'author_profile': 'https://Stackoverflow.com/users/659715', 'pm_score': 5, 'selected': False, 'text': '<p><code>ffmpeg</code> is a general purpose (de)muxer/transcoder. <code>MP4Box</code> is a (de)muxer/transcoder from <a href="http://gpac.wp.institut-telecom.fr/mp4box/" rel="nofollow noreferrer">GPAC</a>, a package dedicated to MP4 related software tech. Right now it seems wiser to use MP4Box because it writes the moov atom at the beginning of the file, which is important for streaming and ipod playing.</p>\n<p>Use ffmpeg like this:</p>\n<pre><code>ffmpeg -i input.aac -codec: copy output.m4a\n</code></pre>\n<p>Use MP4Box like this:</p>\n<pre><code>MP4Box -add input.aac#audio output.m4a\n</code></pre>\n'}, {'answer_id': 22367988, 'author': 'Alastair', 'author_id': 1105203, 'author_profile': 'https://Stackoverflow.com/users/1105203', 'pm_score': 2, 'selected': False, 'text': '<p><code>avconv -i input.aac -acodec copy output.m4a</code></p>\n\n<p>In my case, without the explicit flag to <em>copy</em>, it re-encodes the audio for some odd reason.</p>\n'}, {'answer_id': 47745203, 'author': 'Damian Höster', 'author_id': 9081508, 'author_profile': 'https://Stackoverflow.com/users/9081508', 'pm_score': 1, 'selected': False, 'text': '<p>Just use any mp4-Muxer like Yamb to create an <code>mp4</code>-file with only the <code>aac</code> audio track in it, then change the file extension to <code>m4a</code>.</p>\n'}]
['https://Stackoverflow.com/questions/70516', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/966/']