feat: preliminary DASH support (for freetube/yattee, no manifest)

rewrites struct returned by innertube with video url retrieved by yt-dlp
works on freetube with proxying disabled; enabling proxying causes
horrible performance. yattee seems unaffected.
This commit is contained in:
2025-11-06 21:53:32 +01:00
parent 05b81e55da
commit da2daab16a
3 changed files with 112 additions and 214 deletions

View File

@@ -135,215 +135,6 @@ def getError(wdata: dict):
return error
def rebuildFormats(data):
result = [{} for x in data]
formatStreams = []
best_bitrate_video = 0
best_bitrate_audio = -1
for x in range(len(data)):
try:
result[x]['audioChannels'] = data[x]['audioChannels']
isVideo = 0
except:
isVideo = 1
if not "initRange" in data[x]: # for livestreams?
continue
result[x]['init'] = str(data[x]['initRange']['start']) + "-" + str(data[x]['initRange']['end'])
result[x]['index'] = str(data[x]['indexRange']['start']) + "-" + str(data[x]['indexRange']['end'])
result[x]['bitrate'] = str(data[x]['averageBitrate'])
result[x]['url'] = data[x]['url']
result[x]['itag'] = str(data[x]['itag'])
result[x]['type'] = data[x]['mimeType']
result[x]['clen'] = data[x]['contentLength']
result[x]['lmt'] = data[x]['lastModified']
result[x]['projectionType'] = data[x]['projectionType']
try:
result[x]['colorInfo'] = data[x]['colorInfo']
except:
pass
if "audio" == data[x]['mimeType'][:5]:
isAudio = 1
else:
isAudio = 0
if isVideo:
result[x]['fps'] = str(data[x]['fps'])
else:
result[x]['audioQuality'] = data[x]['audioQuality']
result[x]['audioSampleRate'] = data[x]['audioSampleRate']
if data[x]['itag'] in invidious_formats.FORMATS.keys():
result[x]['container'] = invidious_formats.FORMATS[data[x]['itag']]['ext']
try:
result[x]['encoding'] = invidious_formats.FORMATS[data[x]['itag']]['vcodec']
except:
result[x]['encoding'] = invidious_formats.FORMATS[data[x]['itag']]['acodec']
if isVideo:
try:
result[x]['resolution'] = str(invidious_formats.FORMATS[data[x]['itag']]['height']) + "p"
result[x]['qualityLabel'] = str(invidious_formats.FORMATS[data[x]['itag']]['height']) + "p" + str(result[x]['fps']) * (data[x]['fps'] > 30) # NOT IMPLEMENTED, that's just a placeholder
result[x]['size'] = str(invidious_formats.FORMATS[data[x]['itag']]['width']) + "x" + str(invidious_formats.FORMATS[data[x]['itag']]['height'])
except:
pass
# we assume here that a stream with the highest bitrate must be a video stream- that may not be the case
if data[x]['averageBitrate'] > data[best_bitrate_video]['averageBitrate'] and isVideo:
best_bitrate_video = x
if data[x]['averageBitrate'] > data[best_bitrate_audio]['averageBitrate'] and isAudio:
best_bitrate_audio = x
# makes FreeTube work, unfortunately it's a video-only stream
formatStreams = [
{
"url": data[best_bitrate_video]['url'],
"itag": str(data[best_bitrate_video]['itag']),
"type": data[best_bitrate_video]['mimeType'],
"quality": data[best_bitrate_video]['quality'],
"bitrate": str(data[best_bitrate_video]['averageBitrate']),
"fps": data[best_bitrate_video]['fps'],
"size": "", # workaround for clipious, which requires ANYTHING to be passed, or else it will throw and error and won't load the video
"resolution": str(invidious_formats.FORMATS[data[best_bitrate_video]['itag']]['height']) + "p",
"qualityLabel": str(invidious_formats.FORMATS[data[best_bitrate_video]['itag']]['height']) + "p",
"container": invidious_formats.FORMATS[data[best_bitrate_video]['itag']]['ext'],
"encoding": invidious_formats.FORMATS[data[best_bitrate_video]['itag']]['vcodec']
},
# {
# "audioChannels": data[best_bitrate_audio]['audioChannels'],
# "init": result[best_bitrate_audio]['init'],
# "index": result[best_bitrate_audio]['index'],
# "bitrate": str(data[best_bitrate_audio]['averageBitrate']),
# "url": data[best_bitrate_audio]['url'],
# "itag": str(data[best_bitrate_audio]['itag']),
# "type": data[best_bitrate_audio]['mimeType'],
# "clen": result[best_bitrate_audio]['clen'],
# "lmt": result[best_bitrate_audio]['lmt'],
# "projectionType": result[best_bitrate_audio]['projectionType'],
# "audioQuality": result[best_bitrate_audio]['audioQuality'],
# "audioSampleRate": result[best_bitrate_audio]['audioSampleRate'],
# "qualityLabel": "audio"
# }
]
# not all itags have width and/or height
try:
formatStreams[0]["size"] = str(invidious_formats.FORMATS[data[best_bitrate]['itag']]['width']) + "x" + str(invidious_formats.FORMATS[data[best_bitrate]['itag']]['height'])
except:
pass
return result, formatStreams
def rebuildFormatsFromYtdlpApi(ydata: dict):
# Rebuild invidious-compatible formats from yt-dlp's output (ydata)
adaptive_formats = []
format_streams = []
for stream in safeTraverse(ydata, ["formats"], default=[]):
if safeTraverse(stream, ["protocol"], default="storyboard") not in ("http_dash_segments", "https"):
continue
newRow = {}
# Add from ...'s ... to ... as ...
newRow["bitrate"] = str(int(safeTraverse(stream, ["tbr"], default=0) * 1000))
newRow["url"] = safeTraverse(stream, ["url"])
newRow["itag"] = safeTraverse(stream, ["format_id"])
params = ythdd_extractor.paramsFromUrl(newRow["url"])
vcodec = safeTraverse(stream, ["vcodec"], default="none")
acodec = safeTraverse(stream, ["acodec"], default="none")
if vcodec == "none" and acodec == "none":
continue
if safeTraverse(stream, ["acodec"]) != "none":
# audio-only track
type = safeTraverse(stream, ["audio_ext"], default=None)
fnote = safeTraverse(stream, ["format_note"], default="low")
if type is None:
type = "mp4"
abr = safeTraverse(stream, ["abr"], default="0")
if abr is None:
abr = "0"
newRow[ "type"] = "audio/" + type
newRow[ "audioQuality"] = fnote
newRow["audioSampleRate"] = int(safeTraverse(stream, ["asr"], default="44100"))
newRow[ "audioChannels"] = int(safeTraverse(stream, ["audio_channels"]))
newRow[ "qualityLabel"] = str(int(abr)) + "k (audio)"
newRow[ "resolution"] = f"{fnote} quality"
newRow[ "size"] = "0x0"
if safeTraverse(stream, ["vcodec"]) != "none":
# either video-only or video+audio
type = safeTraverse(stream, ["video_ext"], default=None)
if type is None:
type = "mp4"
height = str(safeTraverse(stream, ["height"], default=0))
width = str(safeTraverse(stream, [ "width"], default=0))
newRow[ "type"] = "video/" + type
newRow[ "resolution"] = (height if height in ("144", "240", "360", "480", "720", "1080") else "360") + "p" # mpv won't play the video inside of Yattee if it's a non-standard resolution (bug?)
newRow[ "fps"] = safeTraverse(stream, ["fps"], default=30)
newRow[ "qualityLabel"] = height + "p" + str(int(newRow['fps'])) * (newRow["fps"] > 30) + " (video)" # also a placeholder
newRow[ "size"] = width + "x" + height
newRow[ "clen"] = safeTraverse(params, ["clen"], default=safeTraverse(stream, ["filesize"], default="0"))
newRow[ "lmt"] = safeTraverse(params, ["lmt"], default="0")
if newRow["clen"] is None:
# for clipious sake which expects a string
newRow["clen"] = "0"
newRow[ "projectionType"] = "RECTANGULAR" # clipious requires this to be mentioned explicitly and cannot be nulled
newRow[ "container"] = safeTraverse(stream, ["ext"], default="unknown_container")
newRow[ "encoding"] = safeTraverse(invidious_formats.FORMATS, [int("0" + newRow["itag"].split("-")[0]), "ext"], default="unknown_encoding") # not sure this split is necessary
newRow[ "quality"] = newRow["qualityLabel"]
newRow[ "init"] = "0-1" # dummy values
newRow[ "index"] = "2-3" # dummy values
if vcodec != "none" and acodec != "none":
# 360p stream
newRow["qualityLabel"] = height + "p" + str(int(newRow['fps'])) * (newRow["fps"] > 30)
format_streams.append(newRow)
if vcodec != "none" or acodec != "none":
adaptive_formats.append(newRow)
# {
# "url": data[best_bitrate_video]['url'],
# "itag": str(data[best_bitrate_video]['itag']),
# "type": data[best_bitrate_video]['mimeType'],
# "quality": data[best_bitrate_video]['quality'],
# "bitrate": str(data[best_bitrate_video]['averageBitrate']),
# "fps": data[best_bitrate_video]['fps'],
# "size": "", # workaround for clipious, which requires ANYTHING to be passed, or else it will throw and error and won't load the video
# "resolution": str(invidious_formats.FORMATS[data[best_bitrate_video]['itag']]['height']) + "p",
# "qualityLabel": str(invidious_formats.FORMATS[data[best_bitrate_video]['itag']]['height']) + "p",
# "container": invidious_formats.FORMATS[data[best_bitrate_video]['itag']]['ext'],
# "encoding": invidious_formats.FORMATS[data[best_bitrate_video]['itag']]['vcodec']
# }
# {
# "audioChannels": data[best_bitrate_audio]['audioChannels'],
# "init": result[best_bitrate_audio]['init'],
# "index": result[best_bitrate_audio]['index'],
# "bitrate": str(data[best_bitrate_audio]['averageBitrate']),
# "url": data[best_bitrate_audio]['url'],
# "itag": str(data[best_bitrate_audio]['itag']),
# "type": data[best_bitrate_audio]['mimeType'],
# "clen": result[best_bitrate_audio]['clen'],
# "lmt": result[best_bitrate_audio]['lmt'],
# "projectionType": result[best_bitrate_audio]['projectionType'],
# "audioQuality": result[best_bitrate_audio]['audioQuality'],
# "audioSampleRate": result[best_bitrate_audio]['audioSampleRate'],
# "qualityLabel": "audio"
# }
return adaptive_formats, format_streams
def videos(data):
# an attempt on a faithful rewrite of
# https://github.com/iv-org/invidious/blob/master/src/invidious/videos/parser.cr
@@ -469,10 +260,43 @@ def videos(data):
author_verified = author_verified or safeTraverse(livm, [0, "listItemViewModel", "title", "attachmentRuns", 0, "element", "type", "imageType", "image", "sources", 0, "clientResource", "imageName"]) in ("AUDIO_BADGE", "CHECK_CIRCLE_FILLED")
author_thumbnail = ythdd_extractor.generateChannelAvatarsFromUrl(author_thumbnail)
wdata_streams = safeTraverse(wdata, ["ec1", "streamingData"], default=[])
adaptive_formats = []
format_streams = []
# adaptive_formats, format_streams = rebuildFormats(adaptive_formats)
if not live_now:
adaptive_formats, format_streams = rebuildFormatsFromYtdlpApi(ydata)
# adaptive_formats, format_streams = rebuildFormatsFromYtdlpApi(ydata)
initial_astreams_y = {} # itag is the key
initial_fstreams_y = {} # same here
initial_astreams_w = {}
initial_fstreams_w = {}
for video_stream in ydata["formats"]:
if video_stream["format_note"] in ("storyboard"):
# ignore non-audio/video formats (e.g. storyboards)
continue
if video_stream["format_id"] == "18": # todo: do this dynamically
initial_fstreams_y[int(video_stream["format_id"])] = video_stream
else:
initial_astreams_y[int(video_stream["format_id"])] = video_stream
# format streams
for video_stream in wdata_streams["formats"]:
initial_fstreams_w[video_stream["itag"]] = video_stream
# adaptive streams
for video_stream in wdata_streams["adaptiveFormats"]:
initial_astreams_w[video_stream["itag"]] = video_stream
for itag in initial_astreams_y:
if itag in initial_astreams_w:
adaptive_formats.append(ythdd_struct_parser.parseAdaptiveStreams(initial_astreams_w[itag], initial_astreams_y[itag]))
for itag in initial_fstreams_y:
if itag in initial_fstreams_w:
format_streams.append( ythdd_struct_parser.parseFormatStreams( initial_fstreams_w[itag], initial_fstreams_y[itag]))
hls_url = None
else:
adaptive_formats, format_streams = [{"url": f"http://a/?expire={int(time_start + 5.9 * 60 * 60)}", "itag": "18", "type": "", "clen": "0", "lmt": "", "projectionType": "RECTANGULAR"}], [] # freetube/clipious shenanigans, see: https://github.com/FreeTubeApp/FreeTube/pull/5997 and https://github.com/lamarios/clipious/blob/b9e7885/lib/videos/models/adaptive_format.g.dart