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Code Issues Releases Wiki Activity

[downloader/external] Add FFmpegFD(fixes #622)

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- replace HlsFD and RtspFD
- add basic support for downloading part of the video or audio
This commit is contained in:
remitamine 2016-02-19 19:29:24 +01:00
parent 8ec64ac683
commit 12b84ac8c1
4 changed files with 80 additions and 124 deletions
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20
youtube_dl/downloader/__init__.py
View File

@ -1,14 +1,15 @@
from __future__ import unicode_literals
from .common import FileDownloader
from .external import get_external_downloader
from .f4m import F4mFD
from .hls import HlsFD
from .hls import NativeHlsFD
from .http import HttpFD
from .rtsp import RtspFD
from .rtmp import RtmpFD
from .dash import DashSegmentsFD
from .external import (
get_external_downloader,
FFmpegFD,
)
from ..utils import (
determine_protocol,
@ -16,10 +17,10 @@ from ..utils import (
PROTOCOL_MAP = {
'rtmp': RtmpFD,
'm3u8_native': NativeHlsFD,
'm3u8': HlsFD,
'mms': RtspFD,
'rtsp': RtspFD,
'm3u8_native': HlsFD,
'm3u8': FFmpegFD,
'mms': FFmpegFD,
'rtsp': FFmpegFD,
'f4m': F4mFD,
'http_dash_segments': DashSegmentsFD,
}
@ -30,6 +31,9 @@ def get_suitable_downloader(info_dict, params={}):
protocol = determine_protocol(info_dict)
info_dict['protocol'] = protocol
if (info_dict.get('start_time') or info_dict.get('end_time')) and FFmpegFD.supports(info_dict):
return FFmpegFD
external_downloader = params.get('external_downloader')
if external_downloader is not None:
ed = get_external_downloader(external_downloader)
@ -37,7 +41,7 @@ def get_suitable_downloader(info_dict, params={}):
return ed
if protocol == 'm3u8' and params.get('hls_prefer_native'):
return NativeHlsFD
return HlsFD
return PROTOCOL_MAP.get(protocol, HttpFD)

65
youtube_dl/downloader/external.py
View File

@ -2,8 +2,12 @@ from __future__ import unicode_literals
import os.path
import subprocess
import sys
import re
from .common import FileDownloader
from ..postprocessor.ffmpeg import FFmpegPostProcessor
from ..compat import compat_str
from ..utils import (
cli_option,
cli_valueless_option,
@ -11,6 +15,7 @@ from ..utils import (
cli_configuration_args,
encodeFilename,
encodeArgument,
handle_youtubedl_headers,
)
@ -136,6 +141,66 @@ class HttpieFD(ExternalFD):
cmd += ['%s:%s' % (key, val)]
return cmd
class FFmpegFD(ExternalFD):
@classmethod
def supports(cls, info_dict):
return info_dict['protocol'] in ('http', 'https', 'ftp', 'ftps', 'm3u8', 'rtsp', 'rtmp', 'mms')
def _call_downloader(self, tmpfilename, info_dict):
url = info_dict['url']
ffpp = FFmpegPostProcessor(downloader=self)
ffpp.check_version()
args = [ffpp.executable, '-y']
start_time = info_dict.get('start_time', 0)
if start_time:
args += ['-ss', compat_str(start_time)]
end_time = info_dict.get('end_time')
if end_time:
args += ['-t', compat_str(end_time - start_time)]
if info_dict['http_headers'] and re.match(r'^https?://', url):
# Trailing \r\n after each HTTP header is important to prevent warning from ffmpeg/avconv:
# [http @ 00000000003d2fa0] No trailing CRLF found in HTTP header.
headers = handle_youtubedl_headers(info_dict['http_headers'])
args += [
'-headers',
''.join('%s: %s\r\n' % (key, val) for key, val in headers.items())]
args += ['-i', url, '-c', 'copy']
if info_dict.get('protocol') == 'm3u8':
if self.params.get('hls_use_mpegts', False):
args += ['-f', 'mpegts']
else:
args += ['-f', 'mp4', '-bsf:a', 'aac_adtstoasc']
else:
args += ['-f', info_dict['ext']]
args = [encodeArgument(opt) for opt in args]
args.append(encodeFilename(ffpp._ffmpeg_filename_argument(tmpfilename), True))
self._debug_cmd(args)
proc = subprocess.Popen(args, stdin=subprocess.PIPE)
try:
retval = proc.wait()
except KeyboardInterrupt:
# subprocces.run would send the SIGKILL signal to ffmpeg and the
# mp4 file couldn't be played, but if we ask ffmpeg to quit it
# produces a file that is playable (this is mostly useful for live
# streams). Note that Windows is not affected and produces playable
# files (see https://github.com/rg3/youtube-dl/issues/8300).
if sys.platform != 'win32':
proc.communicate(b'q')
raise
return retval
class AVconvFD(FFmpegFD):
pass
_BY_NAME = dict(
(klass.get_basename(), klass)
for name, klass in globals().items()

74
youtube_dl/downloader/hls.py
View File

@ -1,87 +1,19 @@
from __future__ import unicode_literals
import os
import os.path
import re
import subprocess
import sys
from .common import FileDownloader
from .fragment import FragmentFD
from ..compat import compat_urlparse
from ..postprocessor.ffmpeg import FFmpegPostProcessor
from ..utils import (
encodeArgument,
encodeFilename,
sanitize_open,
handle_youtubedl_headers,
)
class HlsFD(FileDownloader):
def real_download(self, filename, info_dict):
url = info_dict['url']
self.report_destination(filename)
tmpfilename = self.temp_name(filename)
ffpp = FFmpegPostProcessor(downloader=self)
if not ffpp.available:
self.report_error('m3u8 download detected but ffmpeg or avconv could not be found. Please install one.')
return False
ffpp.check_version()
args = [ffpp.executable, '-y']
if info_dict['http_headers'] and re.match(r'^https?://', url):
# Trailing \r\n after each HTTP header is important to prevent warning from ffmpeg/avconv:
# [http @ 00000000003d2fa0] No trailing CRLF found in HTTP header.
headers = handle_youtubedl_headers(info_dict['http_headers'])
args += [
'-headers',
''.join('%s: %s\r\n' % (key, val) for key, val in headers.items())]
args += ['-i', url, '-c', 'copy']
if self.params.get('hls_use_mpegts', False):
args += ['-f', 'mpegts']
else:
args += ['-f', 'mp4', '-bsf:a', 'aac_adtstoasc']
args = [encodeArgument(opt) for opt in args]
args.append(encodeFilename(ffpp._ffmpeg_filename_argument(tmpfilename), True))
self._debug_cmd(args)
proc = subprocess.Popen(args, stdin=subprocess.PIPE)
try:
retval = proc.wait()
except KeyboardInterrupt:
# subprocces.run would send the SIGKILL signal to ffmpeg and the
# mp4 file couldn't be played, but if we ask ffmpeg to quit it
# produces a file that is playable (this is mostly useful for live
# streams). Note that Windows is not affected and produces playable
# files (see https://github.com/rg3/youtube-dl/issues/8300).
if sys.platform != 'win32':
proc.communicate(b'q')
raise
if retval == 0:
fsize = os.path.getsize(encodeFilename(tmpfilename))
self.to_screen('\r[%s] %s bytes' % (args[0], fsize))
self.try_rename(tmpfilename, filename)
self._hook_progress({
'downloaded_bytes': fsize,
'total_bytes': fsize,
'filename': filename,
'status': 'finished',
})
return True
else:
self.to_stderr('\n')
self.report_error('%s exited with code %d' % (ffpp.basename, retval))
return False
class NativeHlsFD(FragmentFD):
""" A more limited implementation that does not require ffmpeg """
class HlsFD(FragmentFD):
""" A limited implementation that does not require ffmpeg """
FD_NAME = 'hlsnative'

45
youtube_dl/downloader/rtsp.py
View File

@ -1,45 +0,0 @@
from __future__ import unicode_literals
import os
import subprocess
from .common import FileDownloader
from ..utils import (
check_executable,
encodeFilename,
)
class RtspFD(FileDownloader):
def real_download(self, filename, info_dict):
url = info_dict['url']
self.report_destination(filename)
tmpfilename = self.temp_name(filename)
if check_executable('mplayer', ['-h']):
args = [
'mplayer', '-really-quiet', '-vo', 'null', '-vc', 'dummy',
'-dumpstream', '-dumpfile', tmpfilename, url]
elif check_executable('mpv', ['-h']):
args = [
'mpv', '-really-quiet', '--vo=null', '--stream-dump=' + tmpfilename, url]
else:
self.report_error('MMS or RTSP download detected but neither "mplayer" nor "mpv" could be run. Please install any.')
return False
retval = subprocess.call(args)
if retval == 0:
fsize = os.path.getsize(encodeFilename(tmpfilename))
self.to_screen('\r[%s] %s bytes' % (args[0], fsize))
self.try_rename(tmpfilename, filename)
self._hook_progress({
'downloaded_bytes': fsize,
'total_bytes': fsize,
'filename': filename,
'status': 'finished',
})
return True
else:
self.to_stderr('\n')
self.report_error('%s exited with code %d' % (args[0], retval))
return False