ffmpeg add neon assembly to gyp and fix offsets with simple values...

source/ffmpeg.gyp

 # Copyright (c) 2010 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.
 
 # There's a couple key GYP variables that control how FFmpeg is built:
 #   ffmpeg_branding
 #     Controls whether we build the Chromium or Google Chrome version of
 #     FFmpeg.  The Google Chrome version contains additional codecs.
 #     Typical values are Chromium, Chrome, ChromiumOS, and ChromeOS.
 #   use_system_ffmpeg
@@ skipping 334 matching lines @@
               'sources!': [
                 'patched-ffmpeg-mt/libavcodec/libvpxdec.c',
               ],
               'conditions': [
                 ['arm_neon==1', {
                   'sources': [
                     'patched-ffmpeg-mt/libavcodec/arm/dsputil_init_neon.c',
                     'patched-ffmpeg-mt/libavcodec/arm/dsputil_neon.S',
                     'patched-ffmpeg-mt/libavcodec/arm/fft_neon.S',
                     'patched-ffmpeg-mt/libavcodec/arm/int_neon.S',
+                    'patched-ffmpeg-mt/libavcodec/arm/mdct_neon.S',
+                    'patched-ffmpeg-mt/libavcodec/arm/mpegvideo_neon.S', # oct 10
                     'patched-ffmpeg-mt/libavcodec/arm/rdft_neon.S',
                     'patched-ffmpeg-mt/libavcodec/arm/simple_idct_neon.S',
                     'patched-ffmpeg-mt/libavcodec/arm/vp3dsp_neon.S',
-                    'patched-ffmpeg-mt/libavcodec/arm/mdct_neon.S',
                   ],
                 }],
               ],
             }],  # target_arch=="arm"
             ['target_arch=="arm" and (ffmpeg_branding=="Chrome" or ffmpeg_branding=="ChromeOS")', {
               'sources': [
                 'patched-ffmpeg-mt/libavcodec/arm/h264dsp_init_arm.c',
                 'patched-ffmpeg-mt/libavcodec/arm/h264pred_init_arm.c',
                 'patched-ffmpeg-mt/libavcodec/arm/mpegvideo_arm.c',
                 'patched-ffmpeg-mt/libavcodec/arm/mpegvideo_armv5te.c',
@@ skipping 537 matching lines @@
       ],  # conditions
     },
   ],  # targets
 }
 
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