def AnalyzeSources(options, media_sources):
# parse the media files
mp4_files = {}
for media_source in media_sources:
if media_source.format != 'mp4': continue
media_file = media_source.filename
# check if we have already parsed this file
if media_file in mp4_files:
media_source.mp4_file = mp4_files[media_file]
continue
# parse the file
if not path.exists(media_file):
PrintErrorAndExit('ERROR: media file ' + media_file +
' does not exist')
# get the file info
print('Parsing media file', media_file)
mp4_file = Mp4File(Options, media_source)
media_source.mp4_file = mp4_file
# remember we have parsed this file
mp4_files[media_file] = mp4_file
# analyze the media sources
for media_source in media_sources:
track_id = media_source.spec['track']
track_type = media_source.spec['type']
track_language = media_source.spec['language']
tracks = []
if media_source.format != 'mp4':
if track_id or track_type:
PrintErrorAndExit(
'ERROR: track ID and track type selections only apply to MP4 media sources'
)
continue
if track_id and track_type:
PrintErrorAndExit(
'ERROR: track ID and track type selections are mutually exclusive'
)
if track_id:
tracks = [media_source.mp4_file.find_track_by_id(track_id)]
if not tracks:
PrintErrorAndExit('ERROR: track id not found for media file ' +
media_source.name)
if track_type:
tracks = media_source.mp4_file.find_tracks_by_type(track_type)
if not tracks:
PrintErrorAndExit('ERROR: no ' + track_type +
' found for media file ' + media_source.name)
if not tracks:
for track in list(media_source.mp4_file.tracks.values()):
language = LanguageCodeMap.get(track.language, track.language)
if track_language and track_language != language and track_language != track.language:
continue
tracks.append(track)
# remember if this media source has a video or audio track
for track in tracks:
if track.type == 'video':
media_source.has_video = True
if track.type == 'audio':
media_source.has_audio = True
media_source.tracks = tracks
if options.encoder_params:
video_opts += ' ' + options.encoder_params
cmd = base_cmd + ' ' + video_opts + ' -s ' + str(
resolutions[i][0]) + 'x' + str(
resolutions[i][1]) + ' -f mp4 ' + temp_filename
if options.verbose:
print('ENCODING bitrate: %d, resolution: %dx%d' %
(int(bitrates[i]), resolutions[i][0], resolutions[i][1]))
run_command(options, cmd)
cmd = 'mp4fragment "%s" "%s"' % (temp_filename, output_filename)
run_command(options, cmd)
if not options.keep_files:
os.unlink(temp_filename)
###########################
if __name__ == '__main__':
Options = None # global
try:
main()
except Exception as err:
if Options and Options.debug:
raise
else:
PrintErrorAndExit('ERROR: %s\n' % str(err))
finally:
for f in TempFiles:
os.unlink(f)
def main():
# determine the platform binary name
host_platform = ''
if platform.system() == 'Linux':
if platform.processor() == 'x86_64':
host_platform = 'linux-x86_64'
else:
host_platform = 'linux-x86'
elif platform.system() == 'Darwin':
host_platform = 'macosx'
elif platform.system() == 'Windows':
host_platform = 'win32'
default_exec_dir = path.join(SCRIPT_PATH, 'bin', host_platform)
if not path.exists(default_exec_dir):
default_exec_dir = path.join(SCRIPT_PATH, 'bin')
if not path.exists(default_exec_dir):
default_exec_dir = path.join(SCRIPT_PATH, '..', 'bin')
if not path.exists(default_exec_dir):
default_exec_dir = '-'
# parse options
parser = OptionParser(
usage="%prog [options] <media-file> [<media-file> ...]",
description=
"Each <media-file> is the path to an MP4 file, optionally prefixed with a stream selector delimited by [ and ]. The same input MP4 file may be repeated, provided that the stream selector prefixes select different streams. Version "
+ VERSION + " r" + SDK_REVISION)
parser.add_option('-v',
'--verbose',
dest="verbose",
action='store_true',
default=False,
help="Be verbose")
parser.add_option('-d',
'--debug',
dest="debug",
action='store_true',
default=False,
help="Print out debugging information")
parser.add_option('-o',
'--output-dir',
dest="output_dir",
help="Output directory",
metavar="<output-dir>",
default='output')
parser.add_option('-f',
'--force',
dest="force_output",
action="store_true",
default=False,
help="Allow output to an existing directory")
parser.add_option('',
'--hls-version',
dest="hls_version",
type="int",
metavar="<version>",
default=4,
help="HLS Version (default: 4)")
parser.add_option('',
'--master-playlist-name',
dest="master_playlist_name",
metavar="<filename>",
default='master.m3u8',
help="Master Playlist name")
parser.add_option('',
'--media-playlist-name',
dest="media_playlist_name",
metavar="<name>",
default='stream.m3u8',
help="Media Playlist name")
parser.add_option('',
'--iframe-playlist-name',
dest="iframe_playlist_name",
metavar="<name>",
default='iframes.m3u8',
help="I-frame Playlist name")
parser.add_option(
'',
'--output-single-file',
dest="output_single_file",
action='store_true',
default=False,
help="Store segment data in a single output file per input file")
parser.add_option(
'',
'--audio-format',
dest="audio_format",
default='packed',
help="Format for audio segments (packed or ts) (default: packed)")
parser.add_option('',
'--segment-duration',
dest="segment_duration",
help="Segment duration (default: 6)")
parser.add_option(
'',
'--encryption-mode',
dest="encryption_mode",
metavar="<mode>",
help=
"Encryption mode (only used when --encryption-key is specified). AES-128 or SAMPLE-AES (default: AES-128)"
)
parser.add_option(
'',
'--encryption-key',
dest="encryption_key",
metavar="<key>",
help="Encryption key in hexadecimal (default: no encryption)")
parser.add_option(
'',
'--encryption-iv-mode',
dest="encryption_iv_mode",
metavar="<mode>",
help=
"Encryption IV mode: 'sequence', 'random' or 'fps' (Fairplay Streaming) (default: sequence). When the mode is 'fps', the encryption key must be 32 bytes: 16 bytes for the key followed by 16 bytes for the IV."
)
parser.add_option(
'',
'--encryption-key-uri',
dest="encryption_key_uri",
metavar="<uri>",
default="key.bin",
help=
"Encryption key URI (may be a relative or absolute URI). (default: key.bin)"
)
parser.add_option('',
'--encryption-key-format',
dest="encryption_key_format",
metavar="<format>",
help="Encryption key format. (default: 'identity')")
parser.add_option('',
'--encryption-key-format-versions',
dest="encryption_key_format_versions",
metavar="<versions>",
help="Encryption key format versions.")
parser.add_option(
'',
'--signal-session-key',
dest='signal_session_key',
action='store_true',
default=False,
help="Signal an #EXT-X-SESSION-KEY tag in the master playlist")
parser.add_option(
'',
'--fairplay',
dest="fairplay",
metavar="<fairplay-parameters>",
help="Enable Fairplay Key Delivery. " +
"The <fairplay-parameters> argument is one or more <name>:<value> pair(s) (separated by '#' if more than one). "
+ "Names include 'uri' [string] (required)")
parser.add_option(
'',
'--widevine',
dest="widevine",
metavar="<widevine-parameters>",
help="Enable Widevine Key Delivery. " +
"The <widevine-header> argument can be either: " +
"(1) the character '#' followed by a Widevine header encoded in Base64, or "
+
"(2) one or more <name>:<value> pair(s) (separated by '#' if more than one) specifying fields of a Widevine header "
+
"(field names include 'provider' [string] (required), 'content_id' [byte array in hex] (optional), 'kid' [16-byte array in hex] (required))"
)
parser.add_option(
'',
'--output-encryption-key',
dest="output_encryption_key",
action="store_true",
default=False,
help=
"Output the encryption key to a file (default: don't output the key). This option is only valid when the encryption key format is 'identity'"
)
parser.add_option(
'',
"--exec-dir",
metavar="<exec_dir>",
dest="exec_dir",
default=default_exec_dir,
help="Directory where the Bento4 executables are located")
parser.add_option(
'',
"--base-url",
metavar="<base_url>",
dest="base_url",
default="",
help=
"The base URL for the Media Playlists and TS files listed in the playlists. This is the prefix for the files."
)
(options, args) = parser.parse_args()
if len(args) == 0:
parser.print_help()
sys.exit(1)
global Options
Options = options
# set some mandatory options that utils rely upon
options.min_buffer_time = 0.0
if options.exec_dir != "-":
if not path.exists(Options.exec_dir):
print(Options.exec_dir)
PrintErrorAndExit('Executable directory does not exist (' +
Options.exec_dir + '), use --exec-dir')
# check options
if options.output_encryption_key:
if options.encryption_key_uri != "key.bin":
sys.stderr.write(
"WARNING: the encryption key will not be output because a non-default key URI was specified\n"
)
options.output_encryption_key = False
if not options.encryption_key:
sys.stderr.write(
"ERROR: --output-encryption-key requires --encryption-key to be specified\n"
)
sys.exit(1)
if options.encryption_key_format != None and options.encryption_key_format != 'identity':
sys.stderr.write(
"ERROR: --output-encryption-key requires --encryption-key-format to be omitted or set to 'identity'\n"
)
sys.exit(1)
# Fairplay option
if options.fairplay:
if not options.encryption_key_format:
options.encryption_key_format = 'com.apple.streamingkeydelivery'
if not options.encryption_key_format_versions:
options.encryption_key_format_versions = '1'
if options.encryption_iv_mode:
if options.encryption_iv_mode != 'fps':
sys.stderr.write(
"ERROR: --fairplay requires --encryption-iv-mode to be 'fps'\n"
)
sys.exit(1)
else:
options.encryption_iv_mode = 'fps'
if not options.encryption_key:
sys.stderr.write(
"ERROR: --fairplay requires --encryption-key to be specified\n"
)
sys.exit(1)
if options.encryption_mode:
if options.encryption_mode != 'SAMPLE-AES':
sys.stderr.write(
'ERROR: --fairplay option incompatible with ' +
options.encryption_mode + ' encryption mode\n')
sys.exit(1)
else:
options.encryption_mode = 'SAMPLE-AES'
options.fairplay = SplitArgs(options.fairplay)
if 'uri' not in options.fairplay:
sys.stderr.write(
'ERROR: --fairplay option requires a "uri" parameter (ex: skd://xxx)\n'
)
sys.exit(1)
options.signal_session_key = True
# Widevine option
if options.widevine:
if not options.encryption_key:
sys.stderr.write(
"ERROR: --widevine requires --encryption-key to be specified\n"
)
sys.exit(1)
if options.encryption_mode:
if options.encryption_mode != 'SAMPLE-AES':
sys.stderr.write(
'ERROR: --widevine option incompatible with ' +
options.encryption_mode + ' encryption mode\n')
sys.exit(1)
else:
options.encryption_mode = 'SAMPLE-AES'
if options.widevine.startswith('#'):
options.widevine = options.widevine[1:]
else:
options.widevine = SplitArgs(options.widevine)
if 'kid' not in options.widevine:
sys.stderr.write(
'ERROR: --widevine option requires a "kid" parameter\n')
sys.exit(1)
if len(options.widevine['kid']) != 32:
sys.stderr.write(
'ERROR: --widevine option "kid" must be 32 hex characters\n'
)
sys.exit(1)
if 'provider' not in options.widevine:
sys.stderr.write(
'ERROR: --widevine option requires a "provider" parameter\n'
)
sys.exit(1)
if 'content_id' in options.widevine:
options.widevine['content_id'] = bytes.fromhex(
options.widevine['content_id'])
else:
options.widevine['content_id'] = '*'
# defaults
if options.encryption_key and not options.encryption_mode:
options.encryption_mode = 'AES-128'
if options.encryption_mode == 'SAMPLE-AES':
options.hls_version = 5
# parse media sources syntax
media_sources = [MediaSource(options, source) for source in args]
for media_source in media_sources:
media_source.has_audio = False
media_source.has_video = False
# create the output directory
severity = 'ERROR'
if options.force_output: severity = None
MakeNewDir(dir=options.output_dir,
exit_if_exists=not options.force_output,
severity=severity)
# output the media playlists
OutputHls(options, media_sources)
