prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  picarto updated streamlink no longer works
  Hey guys picarto no longer works because they said they updated the player so html5 can be default soon.
  when you run  the program it says found matching plugin picarto for url https:// https://picarto.tv/picknamehere
  then the it says error: no stream on this URL: https://picarto.tv/picknamehere.
  thanks guys for the awesome program hopefully it gets solved soon!
  
  </issue>
  <code>
  [start of src/streamlink/plugins/picarto.py]
  1 import re
  2 
  3 from streamlink.plugin import Plugin
  4 from streamlink.plugin.api import http
  5 from streamlink.stream import RTMPStream
  6 
  7 API_CHANNEL_INFO = "https://picarto.tv/process/channel"
  8 RTMP_URL = "rtmp://{}:1935/play/"
  9 RTMP_PLAYPATH = "golive+{}?token={}"
  10 
  11 _url_re = re.compile(r"""
  12     https?://(\w+\.)?picarto\.tv/[^&?/]
  13 """, re.VERBOSE)
  14 
  15 _channel_casing_re = re.compile(r"""
  16     <script>placeStreamChannel(Flash)?\('(?P<channel>[^']+)',[^,]+,[^,]+,'(?P<visibility>[^']+)'(,[^,]+)?\);</script>
  17 """, re.VERBOSE)
  18 
  19 
  20 class Picarto(Plugin):
  21     @classmethod
  22     def can_handle_url(self, url):
  23         return _url_re.match(url)
  24 
  25     def _get_streams(self):
  26         page_res = http.get(self.url)
  27         match = _channel_casing_re.search(page_res.text)
  28 
  29         if not match:
  30             return {}
  31 
  32         channel = match.group("channel")
  33         visibility = match.group("visibility")
  34 
  35         channel_server_res = http.post(API_CHANNEL_INFO, data={
  36             "loadbalancinginfo": channel
  37         })
  38 
  39         streams = {}
  40         streams["live"] = RTMPStream(self.session, {
  41             "rtmp": RTMP_URL.format(channel_server_res.text),
  42             "playpath": RTMP_PLAYPATH.format(channel, visibility),
  43             "pageUrl": self.url,
  44             "live": True
  45         })
  46         return streams
  47 
  48 __plugin__ = Picarto
  49
  [end of src/streamlink/plugins/picarto.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/src/streamlink/plugins/picarto.py b/src/streamlink/plugins/picarto.py
  --- a/src/streamlink/plugins/picarto.py
  +++ b/src/streamlink/plugins/picarto.py
  @@ -2,47 +2,69 @@
   
   from streamlink.plugin import Plugin
   from streamlink.plugin.api import http
  +from streamlink.stream import HLSStream
   from streamlink.stream import RTMPStream
   
   API_CHANNEL_INFO = "https://picarto.tv/process/channel"
   RTMP_URL = "rtmp://{}:1935/play/"
   RTMP_PLAYPATH = "golive+{}?token={}"
  +HLS_URL = "https://{}/hls/{}/index.m3u8?token={}"
   
   _url_re = re.compile(r"""
       https?://(\w+\.)?picarto\.tv/[^&?/]
   """, re.VERBOSE)
   
  +# placeStream(channel, playerID, product, offlineImage, online, token, tech)
   _channel_casing_re = re.compile(r"""
  -    <script>placeStreamChannel(Flash)?\('(?P<channel>[^']+)',[^,]+,[^,]+,'(?P<visibility>[^']+)'(,[^,]+)?\);</script>
  +    <script>\s*placeStream\s*\((.*?)\);?\s*</script>
   """, re.VERBOSE)
   
   
   class Picarto(Plugin):
       @classmethod
  -    def can_handle_url(self, url):
  -        return _url_re.match(url)
  +    def can_handle_url(cls, url):
  +        return _url_re.match(url) is not None
  +
  +    @staticmethod
  +    def _get_stream_arguments(page):
  +        match = _channel_casing_re.search(page.text)
  +        if not match:
  +            raise ValueError
  +
  +        # transform the arguments
  +        channel, player_id, product, offline_image, online, visibility, is_flash = \
  +            map(lambda a: a.strip("' \""), match.group(1).split(","))
  +        player_id, product, offline_image, online, is_flash = \
  +            map(lambda a: bool(int(a)), [player_id, product, offline_image, online, is_flash])
  +
  +        return channel, player_id, product, offline_image, online, visibility, is_flash
   
       def _get_streams(self):
  -        page_res = http.get(self.url)
  -        match = _channel_casing_re.search(page_res.text)
  +        page = http.get(self.url)
   
  -        if not match:
  -            return {}
  +        try:
  +            channel, _, _, _, online, visibility, is_flash = self._get_stream_arguments(page)
  +        except ValueError:
  +            return
   
  -        channel = match.group("channel")
  -        visibility = match.group("visibility")
  +        if not online:
  +            self.logger.error("This stream is currently offline")
  +            return
   
           channel_server_res = http.post(API_CHANNEL_INFO, data={
               "loadbalancinginfo": channel
           })
   
  -        streams = {}
  -        streams["live"] = RTMPStream(self.session, {
  -            "rtmp": RTMP_URL.format(channel_server_res.text),
  -            "playpath": RTMP_PLAYPATH.format(channel, visibility),
  -            "pageUrl": self.url,
  -            "live": True
  -        })
  -        return streams
  +        if is_flash:
  +            return {"live": RTMPStream(self.session, {
  +                "rtmp": RTMP_URL.format(channel_server_res.text),
  +                "playpath": RTMP_PLAYPATH.format(channel, visibility),
  +                "pageUrl": self.url,
  +                "live": True
  +            })}
  +        else:
  +            return HLSStream.parse_variant_playlist(self.session,
  +                                                    HLS_URL.format(channel_server_res.text, channel, visibility),
  +                                                    verify=False)
   
   __plugin__ = Picarto
  
verification_info: {"golden_diff": "diff --git a/src/streamlink/plugins/picarto.py b/src/streamlink/plugins/picarto.py\n--- a/src/streamlink/plugins/picarto.py\n+++ b/src/streamlink/plugins/picarto.py\n@@ -2,47 +2,69 @@\n \n from streamlink.plugin import Plugin\n from streamlink.plugin.api import http\n+from streamlink.stream import HLSStream\n from streamlink.stream import RTMPStream\n \n API_CHANNEL_INFO = \"https://picarto.tv/process/channel\"\n RTMP_URL = \"rtmp://{}:1935/play/\"\n RTMP_PLAYPATH = \"golive+{}?token={}\"\n+HLS_URL = \"https://{}/hls/{}/index.m3u8?token={}\"\n \n _url_re = re.compile(r\"\"\"\n     https?://(\\w+\\.)?picarto\\.tv/[^&?/]\n \"\"\", re.VERBOSE)\n \n+# placeStream(channel, playerID, product, offlineImage, online, token, tech)\n _channel_casing_re = re.compile(r\"\"\"\n-    <script>placeStreamChannel(Flash)?\\('(?P<channel>[^']+)',[^,]+,[^,]+,'(?P<visibility>[^']+)'(,[^,]+)?\\);</script>\n+    <script>\\s*placeStream\\s*\\((.*?)\\);?\\s*</script>\n \"\"\", re.VERBOSE)\n \n \n class Picarto(Plugin):\n     @classmethod\n-    def can_handle_url(self, url):\n-        return _url_re.match(url)\n+    def can_handle_url(cls, url):\n+        return _url_re.match(url) is not None\n+\n+    @staticmethod\n+    def _get_stream_arguments(page):\n+        match = _channel_casing_re.search(page.text)\n+        if not match:\n+            raise ValueError\n+\n+        # transform the arguments\n+        channel, player_id, product, offline_image, online, visibility, is_flash = \\\n+            map(lambda a: a.strip(\"' \\\"\"), match.group(1).split(\",\"))\n+        player_id, product, offline_image, online, is_flash = \\\n+            map(lambda a: bool(int(a)), [player_id, product, offline_image, online, is_flash])\n+\n+        return channel, player_id, product, offline_image, online, visibility, is_flash\n \n     def _get_streams(self):\n-        page_res = http.get(self.url)\n-        match = _channel_casing_re.search(page_res.text)\n+        page = http.get(self.url)\n \n-        if not match:\n-            return {}\n+        try:\n+            channel, _, _, _, online, visibility, is_flash = self._get_stream_arguments(page)\n+        except ValueError:\n+            return\n \n-        channel = match.group(\"channel\")\n-        visibility = match.group(\"visibility\")\n+        if not online:\n+            self.logger.error(\"This stream is currently offline\")\n+            return\n \n         channel_server_res = http.post(API_CHANNEL_INFO, data={\n             \"loadbalancinginfo\": channel\n         })\n \n-        streams = {}\n-        streams[\"live\"] = RTMPStream(self.session, {\n-            \"rtmp\": RTMP_URL.format(channel_server_res.text),\n-            \"playpath\": RTMP_PLAYPATH.format(channel, visibility),\n-            \"pageUrl\": self.url,\n-            \"live\": True\n-        })\n-        return streams\n+        if is_flash:\n+            return {\"live\": RTMPStream(self.session, {\n+                \"rtmp\": RTMP_URL.format(channel_server_res.text),\n+                \"playpath\": RTMP_PLAYPATH.format(channel, visibility),\n+                \"pageUrl\": self.url,\n+                \"live\": True\n+            })}\n+        else:\n+            return HLSStream.parse_variant_playlist(self.session,\n+                                                    HLS_URL.format(channel_server_res.text, channel, visibility),\n+                                                    verify=False)\n \n __plugin__ = Picarto\n", "issue": "picarto updated streamlink no longer works\nHey guys picarto no longer works because they said they updated the player so html5 can be default soon.\r\nwhen you run  the program it says found matching plugin picarto for url https:// https://picarto.tv/picknamehere\r\nthen the it says error: no stream on this URL: https://picarto.tv/picknamehere.\r\nthanks guys for the awesome program hopefully it gets solved soon!\n", "before_files": [{"content": "import re\n\nfrom streamlink.plugin import Plugin\nfrom streamlink.plugin.api import http\nfrom streamlink.stream import RTMPStream\n\nAPI_CHANNEL_INFO = \"https://picarto.tv/process/channel\"\nRTMP_URL = \"rtmp://{}:1935/play/\"\nRTMP_PLAYPATH = \"golive+{}?token={}\"\n\n_url_re = re.compile(r\"\"\"\n    https?://(\\w+\\.)?picarto\\.tv/[^&?/]\n\"\"\", re.VERBOSE)\n\n_channel_casing_re = re.compile(r\"\"\"\n    <script>placeStreamChannel(Flash)?\\('(?P<channel>[^']+)',[^,]+,[^,]+,'(?P<visibility>[^']+)'(,[^,]+)?\\);</script>\n\"\"\", re.VERBOSE)\n\n\nclass Picarto(Plugin):\n    @classmethod\n    def can_handle_url(self, url):\n        return _url_re.match(url)\n\n    def _get_streams(self):\n        page_res = http.get(self.url)\n        match = _channel_casing_re.search(page_res.text)\n\n        if not match:\n            return {}\n\n        channel = match.group(\"channel\")\n        visibility = match.group(\"visibility\")\n\n        channel_server_res = http.post(API_CHANNEL_INFO, data={\n            \"loadbalancinginfo\": channel\n        })\n\n        streams = {}\n        streams[\"live\"] = RTMPStream(self.session, {\n            \"rtmp\": RTMP_URL.format(channel_server_res.text),\n            \"playpath\": RTMP_PLAYPATH.format(channel, visibility),\n            \"pageUrl\": self.url,\n            \"live\": True\n        })\n        return streams\n\n__plugin__ = Picarto\n", "path": "src/streamlink/plugins/picarto.py"}]}