Build on Linux with shared libraries (significant chunks courtesy craigsch):...

media/media.gyp

 # Copyright (c) 2009 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     '../build/common.gypi',
@@ skipping 85 matching lines @@
       ],
       'direct_dependent_settings': {
         'include_dirs': [
           '..',
         ],
       },
       'conditions': [
         ['OS =="linux"', {
           'sources!': [
             'filters/ffmpeg_audio_decoder.cc',
+            'filters/ffmpeg_demuxer.cc',
+            'filters/ffmpeg_demuxer.h',
             'filters/ffmpeg_glue.cc',
             'filters/ffmpeg_video_decoder.cc',
           ],
           'sources/': [ ['exclude', '_(mac|win)\\.cc$'],
                         ['exclude', '\\.mm?$' ] ],
         }],
         ['OS =="mac"', {
           'link_settings': {
             'libraries': [
               '$(SDKROOT)/System/Library/Frameworks/AudioToolbox.framework',
@@ skipping 85 matching lines @@
             '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
           ],
           'sources': [
             'bench/bench.cc',
           ],
         },
       ],
     }],
   ],
 }