1 files changed, 77 insertions, 0 deletions
diff --git a/media/libvpx/update.py b/media/libvpx/update.py
new file mode 100755
index 0000000000..8e0b938781
--- /dev/null
+++ b/media/libvpx/update.py
@@ -0,0 +1,77 @@
+#!/usr/bin/env python
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+import argparse
+import os
+import re
+import shutil
+import sys
+import subprocess
+import tarfile
+import urllib.request
+from pprint import pprint
+from io import StringIO
+
+def prepare_upstream(prefix, commit=None):
+    upstream_url = 'https://chromium.googlesource.com/webm/libvpx'
+    shutil.rmtree(os.path.join(base, 'libvpx/'))
+    print(upstream_url + '/+archive/' + commit + '.tar.gz')
+    urllib.request.urlretrieve(upstream_url + '/+archive/' + commit + '.tar.gz', 'libvpx.tar.gz')
+    tarfile.open('libvpx.tar.gz').extractall(path='libvpx')
+    os.remove(os.path.join(base, 'libvpx.tar.gz'))
+    os.chdir(base)
+    return commit
+
+def cleanup_upstream():
+    os.remove(os.path.join(base, 'libvpx', '.gitattributes'))
+    os.remove(os.path.join(base, 'libvpx', '.gitignore'))
+    shutil.rmtree(os.path.join(base, 'libvpx', 'third_party', 'libwebm'))
+    shutil.rmtree(os.path.join(base, 'libvpx', 'tools'))
+
+def apply_patches():
+    # Patch to fix a crash caused by MSVC 2013
+    os.system("patch -p3 < bug1137614.patch")
+    # Bug 1263384 - Check input frame resolution
+    os.system("patch -p3 < input_frame_validation.patch")
+    # Bug 1315288 - Check input frame resolution for vp9
+    os.system("patch -p3 < input_frame_validation_vp9.patch")
+    # Avoid c/asm name collision for loopfilter_sse2
+    os.system("patch -p3 < rename_duplicate_files.patch")
+    os.system("mv libvpx/vpx_dsp/x86/loopfilter_sse2.c libvpx/vpx_dsp/x86/loopfilter_intrin_sse2.c")
+    # Ensure float_control_word.asm is included
+    os.system("patch -p3 < win64_build_fix.patch")
+
+def update_readme(commit):
+    with open('README_MOZILLA') as f:
+        readme = f.read()
+
+    if 'The git commit ID used was' in readme:
+        new_readme = re.sub('The git commit ID used was [v\.a-f0-9]+',
+            'The git commit ID used was %s' % commit, readme)
+    else:
+        new_readme = "%s\n\nThe git commit ID used was %s\n" % (readme, commit)
+
+    if readme != new_readme:
+        with open('README_MOZILLA', 'w') as f:
+            f.write(new_readme)
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description='''Update libvpx''')
+    parser.add_argument('--debug', dest='debug', action="store_true")
+    parser.add_argument('--commit', dest='commit', type=str, default='master')
+
+    args = parser.parse_args()
+
+    commit = args.commit
+    DEBUG = args.debug
+
+    base = os.path.abspath(os.curdir)
+    prefix = os.path.join(base, 'libvpx/')
+
+    commit = prepare_upstream(prefix, commit)
+
+    apply_patches()
+    update_readme(commit)
+
+    cleanup_upstream()