+ --write-info-json

diff --git a/youtube-dl b/youtube-dl
index 64c1f30..578f473 100755 (executable)
--- a/youtube-dl
+++ b/youtube-dl
@@ -413,6 +413,7 @@ class FileDownloader(object):
        nopart:           Do not use temporary .part files.
        updatetime:       Use the Last-modified header to set output file timestamps.
        writedescription: Write the video description to a .description file
+       writeinfojson:    Write the video description to a .info.json file
        """
 
        params = None
@@ -609,8 +610,12 @@ class FileDownloader(object):
                        pass
 
        def report_writedescription(self, descfn):
-               """ Report that the description file has been written """
-               self.to_screen(u'[info] Video description written to: %s' % descfn, ignore_encoding_errors=True)
+               """ Report that the description file is being written """
+               self.to_screen(u'[info] Writing video description to: %s' % descfn, ignore_encoding_errors=True)
+
+       def report_writeinfojson(self, infofn):
+               """ Report that the metadata file has been written """
+               self.to_screen(u'[info] Video description metadata as JSON to: %s' % infofn, ignore_encoding_errors=True)
 
        def report_destination(self, filename):
                """Report destination filename."""
@@ -701,13 +706,29 @@ class FileDownloader(object):
                if self.params.get('writedescription', False):
                        try:
                                descfn = filename + '.description'
+                               self.report_writedescription(descfn)
                                with contextlib.closing(open(descfn, 'wb')) as descfile:
                                        descfile.write(info_dict['description'].encode('utf-8'))
-                               self.report_writedescription(descfn)
                        except (OSError, IOError):
                                self.trouble(u'ERROR: Cannot write description file: %s' % str(descfn))
                                return
 
+               print(repr(self.params))
+               if self.params.get('writeinfojson', False):
+                       infofn = filename + '.info.json'
+                       self.report_writeinfojson(infofn)
+                       try:
+                               json.dump
+                       except (NameError,AttributeError):
+                               self.trouble(u'ERROR: No JSON encoder found. Update to Python 2.6+, setup a json module, or leave out --write-info-json.')
+                               return
+                       try:
+                               with contextlib.closing(open(infofn, 'wb')) as infof:
+                                       json.dump(info_dict, infof)
+                       except (OSError, IOError):
+                               self.trouble(u'ERROR: Cannot write metadata to JSON file: %s' % str(infofn))
+                               return
+
                try:
                        success = self._do_download(filename, info_dict['url'].encode('utf-8'), info_dict.get('player_url', None))
                except (OSError, IOError), err:
@@ -3031,6 +3052,9 @@ if __name__ == '__main__':
                filesystem.add_option('--write-description',
                                action='store_true', dest='writedescription',
                                help='write video description to a .description file', default=False)
+               filesystem.add_option('--write-info-json',
+                               action='store_true', dest='writeinfojson',
+                               help='write video metadata to a .info.json file', default=False)
                parser.add_option_group(filesystem)
 
                postproc = optparse.OptionGroup(parser, 'Post-processing Options')
@@ -3169,6 +3193,7 @@ if __name__ == '__main__':
                        'nopart': opts.nopart,
                        'updatetime': opts.updatetime,
                        'writedescription': opts.writedescription,
+                       'writeinfojson': opts.writeinfojson,
                        })
                fd.add_info_extractor(youtube_search_ie)
                fd.add_info_extractor(youtube_pl_ie)