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-rw-r--r--youtube_dl/postprocessor/execafterdownload.py7
-rw-r--r--youtube_dl/postprocessor/ffmpeg.py74
-rw-r--r--youtube_dl/postprocessor/metadatafromtitle.py15
-rw-r--r--youtube_dl/postprocessor/xattrpp.py6
4 files changed, 73 insertions, 29 deletions
diff --git a/youtube_dl/postprocessor/execafterdownload.py b/youtube_dl/postprocessor/execafterdownload.py
index 90630c2d7..64dabe790 100644
--- a/youtube_dl/postprocessor/execafterdownload.py
+++ b/youtube_dl/postprocessor/execafterdownload.py
@@ -4,7 +4,10 @@ import subprocess
 
 from .common import PostProcessor
 from ..compat import compat_shlex_quote
-from ..utils import PostProcessingError
+from ..utils import (
+    encodeArgument,
+    PostProcessingError,
+)
 
 
 class ExecAfterDownloadPP(PostProcessor):
@@ -20,7 +23,7 @@ class ExecAfterDownloadPP(PostProcessor):
         cmd = cmd.replace('{}', compat_shlex_quote(information['filepath']))
 
         self._downloader.to_screen('[exec] Executing command: %s' % cmd)
-        retCode = subprocess.call(cmd, shell=True)
+        retCode = subprocess.call(encodeArgument(cmd), shell=True)
         if retCode != 0:
             raise PostProcessingError(
                 'Command returned error code %d' % retCode)
diff --git a/youtube_dl/postprocessor/ffmpeg.py b/youtube_dl/postprocessor/ffmpeg.py
index 1881f4849..3ea1afcf3 100644
--- a/youtube_dl/postprocessor/ffmpeg.py
+++ b/youtube_dl/postprocessor/ffmpeg.py
@@ -4,6 +4,7 @@ import io
 import os
 import subprocess
 import time
+import re
 
 
 from .common import AudioConversionError, PostProcessor
@@ -22,19 +23,30 @@ from ..utils import (
     subtitles_filename,
     dfxp2srt,
     ISO639Utils,
+    replace_extension,
 )
 
 
 EXT_TO_OUT_FORMATS = {
-    "aac": "adts",
-    "m4a": "ipod",
-    "mka": "matroska",
-    "mkv": "matroska",
-    "mpg": "mpeg",
-    "ogv": "ogg",
-    "ts": "mpegts",
-    "wma": "asf",
-    "wmv": "asf",
+    'aac': 'adts',
+    'flac': 'flac',
+    'm4a': 'ipod',
+    'mka': 'matroska',
+    'mkv': 'matroska',
+    'mpg': 'mpeg',
+    'ogv': 'ogg',
+    'ts': 'mpegts',
+    'wma': 'asf',
+    'wmv': 'asf',
+}
+ACODECS = {
+    'mp3': 'libmp3lame',
+    'aac': 'aac',
+    'flac': 'flac',
+    'm4a': 'aac',
+    'opus': 'libopus',
+    'vorbis': 'libvorbis',
+    'wav': None,
 }
 
 
@@ -237,7 +249,7 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor):
                 acodec = 'copy'
                 extension = 'm4a'
                 more_opts = ['-bsf:a', 'aac_adtstoasc']
-            elif filecodec in ['aac', 'mp3', 'vorbis', 'opus']:
+            elif filecodec in ['aac', 'flac', 'mp3', 'vorbis', 'opus']:
                 # Lossless if possible
                 acodec = 'copy'
                 extension = filecodec
@@ -256,8 +268,8 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor):
                     else:
                         more_opts += ['-b:a', self._preferredquality + 'k']
         else:
-            # We convert the audio (lossy)
-            acodec = {'mp3': 'libmp3lame', 'aac': 'aac', 'm4a': 'aac', 'opus': 'opus', 'vorbis': 'libvorbis', 'wav': None}[self._preferredcodec]
+            # We convert the audio (lossy if codec is lossy)
+            acodec = ACODECS[self._preferredcodec]
             extension = self._preferredcodec
             more_opts = []
             if self._preferredquality is not None:
@@ -419,17 +431,40 @@ class FFmpegMetadataPP(FFmpegPostProcessor):
 
         filename = info['filepath']
         temp_filename = prepend_extension(filename, 'temp')
+        in_filenames = [filename]
+        options = []
 
         if info['ext'] == 'm4a':
-            options = ['-vn', '-acodec', 'copy']
+            options.extend(['-vn', '-acodec', 'copy'])
         else:
-            options = ['-c', 'copy']
+            options.extend(['-c', 'copy'])
 
         for (name, value) in metadata.items():
             options.extend(['-metadata', '%s=%s' % (name, value)])
 
+        chapters = info.get('chapters', [])
+        if chapters:
+            metadata_filename = replace_extension(filename, 'meta')
+            with io.open(metadata_filename, 'wt', encoding='utf-8') as f:
+                def ffmpeg_escape(text):
+                    return re.sub(r'(=|;|#|\\|\n)', r'\\\1', text)
+
+                metadata_file_content = ';FFMETADATA1\n'
+                for chapter in chapters:
+                    metadata_file_content += '[CHAPTER]\nTIMEBASE=1/1000\n'
+                    metadata_file_content += 'START=%d\n' % (chapter['start_time'] * 1000)
+                    metadata_file_content += 'END=%d\n' % (chapter['end_time'] * 1000)
+                    chapter_title = chapter.get('title')
+                    if chapter_title:
+                        metadata_file_content += 'title=%s\n' % ffmpeg_escape(chapter_title)
+                f.write(metadata_file_content)
+                in_filenames.append(metadata_filename)
+                options.extend(['-map_metadata', '1'])
+
         self._downloader.to_screen('[ffmpeg] Adding metadata to \'%s\'' % filename)
-        self.run_ffmpeg(filename, temp_filename, options)
+        self.run_ffmpeg_multiple_files(in_filenames, temp_filename, options)
+        if chapters:
+            os.remove(metadata_filename)
         os.remove(encodeFilename(filename))
         os.rename(encodeFilename(temp_filename), encodeFilename(filename))
         return [], info
@@ -507,7 +542,7 @@ class FFmpegFixupM3u8PP(FFmpegPostProcessor):
             temp_filename = prepend_extension(filename, 'temp')
 
             options = ['-c', 'copy', '-f', 'mp4', '-bsf:a', 'aac_adtstoasc']
-            self._downloader.to_screen('[ffmpeg] Fixing malformated aac bitstream in "%s"' % filename)
+            self._downloader.to_screen('[ffmpeg] Fixing malformed AAC bitstream in "%s"' % filename)
             self.run_ffmpeg(filename, temp_filename, options)
 
             os.remove(encodeFilename(filename))
@@ -536,14 +571,13 @@ class FFmpegSubtitlesConvertorPP(FFmpegPostProcessor):
             ext = sub['ext']
             if ext == new_ext:
                 self._downloader.to_screen(
-                    '[ffmpeg] Subtitle file for %s is already in the requested'
-                    'format' % new_ext)
+                    '[ffmpeg] Subtitle file for %s is already in the requested format' % new_ext)
                 continue
             old_file = subtitles_filename(filename, lang, ext)
             sub_filenames.append(old_file)
             new_file = subtitles_filename(filename, lang, new_ext)
 
-            if ext == 'dfxp' or ext == 'ttml' or ext == 'tt':
+            if ext in ('dfxp', 'ttml', 'tt'):
                 self._downloader.report_warning(
                     'You have requested to convert dfxp (TTML) subtitles into another format, '
                     'which results in style information loss')
@@ -551,7 +585,7 @@ class FFmpegSubtitlesConvertorPP(FFmpegPostProcessor):
                 dfxp_file = old_file
                 srt_file = subtitles_filename(filename, lang, 'srt')
 
-                with io.open(dfxp_file, 'rt', encoding='utf-8') as f:
+                with open(dfxp_file, 'rb') as f:
                     srt_data = dfxp2srt(f.read())
 
                 with io.open(srt_file, 'wt', encoding='utf-8') as f:
diff --git a/youtube_dl/postprocessor/metadatafromtitle.py b/youtube_dl/postprocessor/metadatafromtitle.py
index 164edd3a8..f5c14d974 100644
--- a/youtube_dl/postprocessor/metadatafromtitle.py
+++ b/youtube_dl/postprocessor/metadatafromtitle.py
@@ -9,7 +9,9 @@ class MetadataFromTitlePP(PostProcessor):
     def __init__(self, downloader, titleformat):
         super(MetadataFromTitlePP, self).__init__(downloader)
         self._titleformat = titleformat
-        self._titleregex = self.format_to_regex(titleformat)
+        self._titleregex = (self.format_to_regex(titleformat)
+                            if re.search(r'%\(\w+\)s', titleformat)
+                            else titleformat)
 
     def format_to_regex(self, fmt):
         r"""
@@ -26,18 +28,21 @@ class MetadataFromTitlePP(PostProcessor):
             regex += r'(?P<' + match.group(1) + '>.+)'
             lastpos = match.end()
         if lastpos < len(fmt):
-            regex += re.escape(fmt[lastpos:len(fmt)])
+            regex += re.escape(fmt[lastpos:])
         return regex
 
     def run(self, info):
         title = info['title']
         match = re.match(self._titleregex, title)
         if match is None:
-            self._downloader.to_screen('[fromtitle] Could not interpret title of video as "%s"' % self._titleformat)
+            self._downloader.to_screen(
+                '[fromtitle] Could not interpret title of video as "%s"'
+                % self._titleformat)
             return [], info
         for attribute, value in match.groupdict().items():
-            value = match.group(attribute)
             info[attribute] = value
-            self._downloader.to_screen('[fromtitle] parsed ' + attribute + ': ' + value)
+            self._downloader.to_screen(
+                '[fromtitle] parsed %s: %s'
+                % (attribute, value if value is not None else 'NA'))
 
         return [], info
diff --git a/youtube_dl/postprocessor/xattrpp.py b/youtube_dl/postprocessor/xattrpp.py
index fbdfa02ac..b0aed9ca7 100644
--- a/youtube_dl/postprocessor/xattrpp.py
+++ b/youtube_dl/postprocessor/xattrpp.py
@@ -42,6 +42,7 @@ class XAttrMetadataPP(PostProcessor):
                 'user.dublincore.format': 'format',
             }
 
+            num_written = 0
             for xattrname, infoname in xattr_mapping.items():
 
                 value = info.get(infoname)
@@ -52,6 +53,7 @@ class XAttrMetadataPP(PostProcessor):
 
                     byte_value = value.encode('utf-8')
                     write_xattr(filename, xattrname, byte_value)
+                    num_written += 1
 
             return [], info
 
@@ -62,8 +64,8 @@ class XAttrMetadataPP(PostProcessor):
         except XAttrMetadataError as e:
             if e.reason == 'NO_SPACE':
                 self._downloader.report_warning(
-                    'There\'s no disk space left or disk quota exceeded. ' +
-                    'Extended attributes are not written.')
+                    'There\'s no disk space left, disk quota exceeded or filesystem xattr limit exceeded. ' +
+                    (('Some ' if num_written else '') + 'extended attributes are not written.').capitalize())
             elif e.reason == 'VALUE_TOO_LONG':
                 self._downloader.report_warning(
                     'Unable to write extended attributes due to too long values.')