The problem occurs, because for aac resampler and the fifo. If you choose a format that doesn't need any of this it will just work. output_audio_stream = output_container. add_stream ( "pcm_s16le", rate=44100) The real problem lies in how pyav implements resampler and the fifo. They aren't made to handle any pts inconsistencies.Shlomi Uziel Asks: PyAV inconsistency when parsing packets from h264 frames When producing H.264 frames and decoding them using pyAV, packets are parsed from frames only when invoking the parse methods twice. Consider the following test H.264 input, created using: ffmpeg -f lavfi -i... if you stare at something long enough it moves Apr 03, 2022 · Shlomi Uziel Asks: PyAV inconsistency when parsing packets from h264 frames When producing H.264 frames and decoding them using pyAV, packets are parsed from frames only when invoking the parse methods twice. Consider the following test H.264 input, created using: ffmpeg -f lavfi -i... PyAV-Org/User-Help. Pythonic bindings for FFmpeg. I can't remember but I read the doxygen docs some functions that couldn't be treated as thread safe. @leandromoreira Thanks. I am experiencing an occasional freeze of a multi-threaded application. It appears to happen when I open a new file and write the first frame to the new file. langley city crime There aren’t really any guides, but if you are interested you can research how AV is packaged. You’re looking for pts and dts to get the audio and video synced. You’d need to probably transcode the audio to get it to break up at the right points since we are splitting the video on I-frames (also research how video encoding works to understand the different frame types). PyAV-Org/User-Help. Pythonic bindings for FFmpeg. It seems I needed the parameter qscale. I don't have the blocks anymore. However it seems qscale is a value between 1-31, and I don't see any difference by setting it to 1,2,31, or even 99. Just setting it is fixing my problem at least. fema test answers 200c container = av.open(self.filename) # Build a toc self._toc = np.cuemsum([len(packet.decode()) for packet in container.demux()]) self._len = self._toc[-1] video_stream = [s for s in container.streams if isinstance(s, av.video.VideoStream)][0] # PyAV always returns frames in color, and we make that # assumption in get_frame() later below, so 3 is ...PyAVの基本的な使い方. PyAVの基本的な使い方は以下のようなものが公式ドキュメントでは紹介されています．. 0番目のvideo streamからフレームを取得するループ. …Hi all. Im using PyAV to re-mux on air masters from a client (HBO) - Im re-muxing ProRes 422HQ, and masters with up to 16 discrete, mono 48Khz LPCM tracks with no viable audio layout / channel info (dont ask, its just how it is) - Now I am able to parse, re-mux and do that just fine, however audio channels after the 1st appear to be disabled, and it appears to be a default behavior in FFMPEG ... what is senior sunday on facebookPyAV の検証 しながら、「作れちゃうよな」と思っただけ。今10分くらいで作った: 今10分くらいで作った: 1 import signal 2 import time 3 import av 4 from PIL import ImageGrab 5 6 class _Interrupt ( Exception ): 7 pass 8 9 def _IntHandler ( signum , frame ): 10 raise _Interrupt () 11 12 signal . signal ( signal .You probably do not want to do time.sleep(10) . If you really feel that you need to discard packets, then you could examine your packets before calling decode ... pregnant or menopause at 47 PyAV-Org/User-Help. Pythonic bindings for FFmpeg. It seems I needed the parameter qscale. I don't have the blocks anymore. However it seems qscale is a value between 1-31, and I don't see any difference by setting it to 1,2,31, or even 99. Just setting it is fixing my problem at least.Apr 03, 2022 · Shlomi Uziel Asks: PyAV inconsistency when parsing packets from h264 frames When producing H.264 frames and decoding them using pyAV, packets are parsed from frames only when invoking the parse methods twice. Consider the following test H.264 input, created using: ffmpeg -f lavfi -i... Activity ; 'test_input.flv', 'r') output = av.open('rtp://127.0.0.1:5000' ; 'w') in_stream = input_.streams.video[0] ; in_stream) for packet in ...Shlomi Uziel Asks: PyAV inconsistency when parsing packets from h264 frames When producing H.264 frames and decoding them using pyAV, packets are parsed from frames only when invoking the parse methods twice. Consider the following test H.264 input, created using: ffmpeg -f lavfi -i... aldi recall list 2022 Sylvia Walters never planned to be in the food-service business. In fact, before she started Sylvia's Soul Plates in April, Walters was best known for fronting the local blues band Sylvia Walters and Groove City.edited. send a frame to the encoder. check if it has some packets for us. if it does, try to put either the frame's time_base or the stream's into the packet (setup_encoded_packet) return the packets. jlaine changed the title Frame "time_base" manipulations are harmful Packet "time_base" manipulations are harmful.Expose encoding/decoding raw packets without streams · Issue #155 · PyAV-Org/PyAV · GitHub. Notifications. Fork 291. Star 1.7k. Code. Issues. Pull requests 20. Discussions. Actions. glock 17 accessories gen 5 flashlight There aren’t really any guides, but if you are interested you can research how AV is packaged. You’re looking for pts and dts to get the audio and video synced. You’d need to probably transcode the audio to get it to break up at the right points since we are splitting the video on I-frames (also research how video encoding works to understand the different frame types).The problem occurs, because for aac resampler and the fifo. If you choose a format that doesn't need any of this it will just work. output_audio_stream = output_container. add_stream ( "pcm_s16le", rate=44100) The real problem lies in how pyav implements resampler and the fifo. They aren't made to handle any pts inconsistencies. transgender girls asian Shlomi Uziel Asks: PyAV inconsistency when parsing packets from h264 frames When producing H.264 frames and decoding them using pyAV, packets are parsed from frames only when invoking the parse methods twice. Consider the following test H.264 input, created using: ffmpeg -f lavfi -i...PyAV の検証 しながら、「作れちゃうよな」と思っただけ。今10分くらいで作った: 今10分くらいで作った: 1 import signal 2 import time 3 import av 4 from PIL import …A received sample contains several frames (44100 Hz) with 16 bit values stored in a numpy array. My goal is to use pyav to create an MP3 file of these samples on the fly. Unfortunately I can't find an example which helps me to solve my problem. I've already checked mikeboers/PyAV#498 but the input data is already a stream in this case. renzo gracie ufc You probably do not want to do time.sleep(10) . If you really feel that you need to discard packets, then you could examine your packets before calling decode ...Sylvia Walters never planned to be in the food-service business. In fact, before she started Sylvia's Soul Plates in April, Walters was best known for fronting the local blues band Sylvia Walters and Groove City. Backends available on this system: dict_keys(['opencv', 'pyav']) [default: opencv]. -c, --config FILE. Path to config file. If not set, tries to load one ... vintage tupperware canisters Cari pekerjaan yang berkaitan dengan Videolan 3gp codec atau upah di pasaran bebas terbesar di dunia dengan pekerjaan 22 m +. Ia percuma untuk mendaftar dan bida pada pekerjaan.The current version of PyAV requires FFmpeg >= 4.0. jim841019g. @jim841019g. HI, would you make a release in pip or conda so that we can use the update of yuvj420p format? ... and only cares about what packets you give it. If you want to do particularly strange things you can make your own codec contexts detached from the streams and do ...#PyAV 10.0.0 is available from PyPI! ... I just processed a bunch of these traces to assess packet loss distribution seen by QUIC connections.Sylvia Walters never planned to be in the food-service business. In fact, before she started Sylvia's Soul Plates in April, Walters was best known for fronting the local blues band Sylvia Walters and Groove City. There aren’t really any guides, but if you are interested you can research how AV is packaged. You’re looking for pts and dts to get the audio and video synced. You’d need to probably transcode the audio to get it to break up at the right points since we are splitting the video on I-frames (also research how video encoding works to understand the different frame types). Apr 03, 2022 · Shlomi Uziel Asks: PyAV inconsistency when parsing packets from h264 frames When producing H.264 frames and decoding them using pyAV, packets are parsed from frames only when invoking the parse methods twice. Consider the following test H.264 input, created using: ffmpeg -f lavfi -i... keyframeであるか否かの判定のみであれば、PyAVを使うのがシンプルな実装になるのでオススメです。 また、フレームの取り出しを同時に行えると述べましたが、取り出す … r005 mini glock keychain Note that the function decodes the whole video frame-by-frame. Args: filename (str): path to the video file pts_unit (str, optional): unit in which timestamp values will be returned either 'pts' or …Expose encoding/decoding raw packets without streams · Issue #155 · PyAV-Org/PyAV · GitHub. Notifications. Fork 291. Star 1.7k. Code. Issues. Pull requests 20. Discussions. Actions.PyAV-Org / PyAV Public main PyAV/av/packet.pyx Go to file Cannot retrieve contributors at this time 200 lines (150 sloc) 5.16 KB Raw Blame cimport libav as lib from av.bytesource cimport bytesource from av.error cimport err_check from av.utils cimport avrational_to_fraction, to_avrational from av import deprecation cdef class Packet (Buffer): speed limit map pennsylvania There aren’t really any guides, but if you are interested you can research how AV is packaged. You’re looking for pts and dts to get the audio and video synced. You’d need to probably transcode the audio to get it to break up at the right points since we are splitting the video on I-frames (also research how video encoding works to understand the different frame types).There aren’t really any guides, but if you are interested you can research how AV is packaged. You’re looking for pts and dts to get the audio and video synced. You’d need to probably transcode the audio to get it to break up at the right points since we are splitting the video on I-frames (also research how video encoding works to understand the different frame types).I'm trying to generate my own PyAV wheel but it looks like it's not ... i tried writing the packets both as raw bytes (using packet.to_bytes() ) and to a ...The code to stream to a network is: import socket import time import picamera # Connect a client socket to my_server:8000 (change my_server to the # hostname of your server) client_socket = socket.socket () client_socket.connect ( ('my_server', 8000)) # Make a file-like object out of the connection connection = client_socket.makefile ('wb') try ... how to program audi a3 key with one key PyAV's API reflects the way frames are stored in a video file. for packet in container.demux(): for frame in packet.decode(): if frame.type == 'video': img ...Sylvia Walters never planned to be in the food-service business. In fact, before she started Sylvia's Soul Plates in April, Walters was best known for fronting the local blues band Sylvia Walters and Groove City. sr20 disco potato PyAV is a Pythonic binding for the [FFmpeg] [ffmpeg] libraries. We aim to provide all of the power and control of the underlying library, but manage the gritty details as much as possible. PyAV is for direct and precise access to your media via containers, streams, packets, codecs, and frames.A received sample contains several frames (44100 Hz) with 16 bit values stored in a numpy array. My goal is to use pyav to create an MP3 file of these samples on the fly. Unfortunately I can't find an example which helps me to solve my problem. I've already checked mikeboers/PyAV#498 but the input data is already a stream in this case. A received sample contains several frames (44100 Hz) with 16 bit values stored in a numpy array. My goal is to use pyav to create an MP3 file of these samples on the fly. Unfortunately I can't find an example which helps me to solve my problem. I've already checked mikeboers/PyAV#498 but the input data is already a stream in this case.The presentation timestamp (PTS) is a timestamp metadata field in an MPEG transport stream ... the PES packet layer of both the transport streams and program streams. poligrip denture adhesive reviews PyAV does default to being less aggressive with threading, but in the case of RTSP that is desirable as it leads to less latency in the processing pipeline (as FFMpeg "delays" packets as they flow if there is inter-frame threading). Also, unless your processing is on another thread, it could be blocking FFMpeg.Sylvia Walters never planned to be in the food-service business. In fact, before she started Sylvia's Soul Plates in April, Walters was best known for fronting the local blues band Sylvia Walters and Groove City. kitboga wife PyAV-Org/User-Help. Pythonic bindings for FFmpeg. I can't remember but I read the doxygen docs some functions that couldn't be treated as thread safe. @leandromoreira Thanks. I am experiencing an occasional freeze of a multi-threaded application. It appears to happen when I open a new file and write the first frame to the new file. sbmmoff vpn review There aren’t really any guides, but if you are interested you can research how AV is packaged. You’re looking for pts and dts to get the audio and video synced. You’d need to probably transcode the audio to get it to break up at the right points since we are splitting the video on I-frames (also research how video encoding works to understand the different frame types).PyAV-Org / PyAV Public main PyAV/av/packet.pyx Go to file Cannot retrieve contributors at this time 200 lines (150 sloc) 5.16 KB Raw Blame cimport libav as lib from av.bytesource cimport bytesource from av.error cimport err_check from av.utils cimport avrational_to_fraction, to_avrational from av import deprecation cdef class Packet (Buffer):Note that the function decodes the whole video frame-by-frame. Args: filename (str): path to the video file pts_unit (str, optional): unit in which timestamp values will be returned either 'pts' or … us bank routing number PyAV is a Pythonic binding for the [FFmpeg] [ffmpeg] libraries. We aim to provide all of the power and control of the underlying library, but manage the gritty details as much as possible. PyAV …There aren’t really any guides, but if you are interested you can research how AV is packaged. You’re looking for pts and dts to get the audio and video synced. You’d need to probably transcode the audio to get it to break up at the right points since we are splitting the video on I-frames (also research how video encoding works to understand the different frame types).Cari pekerjaan yang berkaitan dengan Videolan 3gp codec atau upah di pasaran bebas terbesar di dunia dengan pekerjaan 22 m +. Ia percuma untuk mendaftar dan bida pada pekerjaan. great baddow obituaries 28 de abr. de 2020 ... for packet in video.demux(stream):. # print(packet). for frame in packet.decode():. # some other formats gray16be, bgr24, rgb24. rockets premium delta 8 pre rolls There aren’t really any guides, but if you are interested you can research how AV is packaged. You’re looking for pts and dts to get the audio and video synced. You’d need to probably transcode the audio to get it to break up at the right points since we are splitting the video on I-frames (also research how video encoding works to understand the different frame types). PyAV 使用FFmpeg(或LibAV)库直接从视频文件读取图像数据。 ... for packet in container.demux(): for frame in packet.decode(): if frame.type == 'video': img ...Expose encoding/decoding raw packets without streams · Issue #155 · PyAV-Org/PyAV · GitHub. Notifications. Fork 291. Star 1.7k. Code. Issues. Pull requests 20. Discussions. Actions. 20x revenue multiple Shlomi Uziel Asks: PyAV inconsistency when parsing packets from h264 frames When producing H.264 frames and decoding them using pyAV, packets are parsed from frames only when invoking the parse methods twice. Consider the following test H.264 input, created using: ffmpeg -f lavfi [email protected] @jlaine - If I could get some eyes on this, it would be really helpful: mikeboers/PyAV#489. It's one of the last things I'm stuck on Alexis Kofman. @akofman. Hello all, ... And while 99% of the time a video packet is one video frame, there is no guarantee, and so you'd be losing frames with this logic ...The presentation timestamp (PTS) is a timestamp metadata field in an MPEG transport stream ... the PES packet layer of both the transport streams and program streams.Sylvia Walters never planned to be in the food-service business. In fact, before she started Sylvia's Soul Plates in April, Walters was best known for fronting the local blues band Sylvia Walters and Groove City. big butterfly thigh tattooFurther connect your project with Snyk to gain real-time vulnerability scanning and remediation. Build securely, at scale. Fix for free. github mikeboers / PyAV ...Is it possible to encode webm video with pyav. ... # The decoded frame is in YUV420 format. frames = code_ctx.decode(packet) frame = frames[0] ... why are you a great match for this role 250 words reddit There aren’t really any guides, but if you are interested you can research how AV is packaged. You’re looking for pts and dts to get the audio and video synced. You’d need to probably transcode the audio to get it to break up at the right points since we are splitting the video on I-frames (also research how video encoding works to understand the different frame types).PyAV/av/packet.pyx. """A packet of encoded data within a :class:`~av.format.Stream`. This may, or may not include a complete object within a stream. :meth:`decode` must be called to extract encoded data. # instead of its data. # Buffer protocol. reboot atoto a6 @mikeboers for example, if average_rate is 1, we could know the rtsp stream include a frame per second, and thenSuppose the computer will complete the decoding calculation in an instant (consuming close to zero), what ever how many frames in this packet, the statement "for frame in video.decode(video=0):" will spend freams fast and wait for a new packets , in this process , use the"cv2.imshow ...Hello, I am trying to create a packet from encoded data so that I can decode it using PyAV. Is it possible to do this? I've scoured the documentation and unfortunately cannot figure out a way to make this happen. I have raw packet payload as though it was generated by Packet.to_bytes(). Any help you can provide would be greatly appreciated!Hi all. Im using PyAV to re-mux on air masters from a client (HBO) - Im re-muxing ProRes 422HQ, and masters with up to 16 discrete, mono 48Khz LPCM tracks with no viable audio layout / …Sylvia Walters never planned to be in the food-service business. In fact, before she started Sylvia's Soul Plates in April, Walters was best known for fronting the local blues band Sylvia Walters and Groove City. sauna captions for instagram The current version of PyAV requires FFmpeg >= 4.0. jim841019g. @jim841019g. HI, would you make a release in pip or conda so that we can use the update of yuvj420p format? ... and only cares about what packets you give it. If you want to do particularly strange things you can make your own codec contexts detached from the streams and do ...There aren’t really any guides, but if you are interested you can research how AV is packaged. You’re looking for pts and dts to get the audio and video synced. You’d need to probably transcode the audio to get it to break up at the right points since we are splitting the video on I-frames (also research how video encoding works to understand the different frame types).I'm very new to FreeBSD and would love so help. Trying to install the PyAV packages but all I get is "No packages available to install matching" What I'm doing is running Home Assistant on FreeNAS/FreeBSD Jail. Here is the links to what I'm tying to do... philips lazer keyframeであるか否かの判定のみであれば、PyAVを使うのがシンプルな実装になるのでオススメです。 また、フレームの取り出しを同時に行えると述べましたが、取り出す …You probably do not want to do time.sleep(10) . If you really feel that you need to discard packets, then you could examine your packets before calling decode ...When producing H.264 frames and decoding them using pyAV, packets are parsed from frames only when invoking the parse methods twice. Consider the following test H.264 input, created using: ffmpeg -f lavfi -i testsrc=duration=10:size=1280x720:rate=30 -f image2 -vcodec libx264 -bsf h264_mp4toannexb -force_key_frames source -x264-params keyint=1 ... foia login 5 de jun. de 2021 ... ... s.type == 'video') for packet in video.demux(stream): print(packet) for frame in packet.decode(): # some other formats gray16be, bgr24, ...There aren’t really any guides, but if you are interested you can research how AV is packaged. You’re looking for pts and dts to get the audio and video synced. You’d need to probably transcode the audio to get it to break up at the right points since we are splitting the video on I-frames (also research how video encoding works to understand the different frame types). the windows firewall on node is not properly configured for failover clustering Cari pekerjaan yang berkaitan dengan Videolan 3gp codec atau upah di pasaran bebas terbesar di dunia dengan pekerjaan 22 m +. Ia percuma untuk mendaftar dan bida pada pekerjaan.May 28, 2022 · 1 There is a logic based on the python generator that uses PyAv to create a fixed sound file and an image equal to the length or 1 frame longer. However, I want to perform this process at once, and I want to implement it without calling ffmpeg additionally. Oct 17, 2022 · Released: Oct 17, 2022 Project description PyAV PyAV is a Pythonic binding for the FFmpeg libraries. We aim to provide all of the power and control of the underlying library, but manage the gritty details as much as possible. PyAV is for direct and precise access to your media via containers, streams, packets, codecs, and frames. ... rawData.seek(cur_pos) for packet in container.demux(): if packet.size == 0: ... += packet.size for frame in packet.decode(): self.frames.append(frame).Released: Oct 17, 2022 Project description PyAV PyAV is a Pythonic binding for the FFmpeg libraries. We aim to provide all of the power and control of the underlying library, but manage the gritty details as much as possible. PyAV is for direct and precise access to your media via containers, streams, packets, codecs, and frames. 1960s glassware patterns Sylvia Walters never planned to be in the food-service business. In fact, before she started Sylvia's Soul Plates in April, Walters was best known for fronting the local blues band Sylvia Walters and Groove City. blue dolphin caravans for sale There aren’t really any guides, but if you are interested you can research how AV is packaged. You’re looking for pts and dts to get the audio and video synced. You’d need to probably transcode the audio to get it to break up at the right points since we are splitting the video on I-frames (also research how video encoding works to understand the different frame types).PyAV-Org/User-Help. Pythonic bindings for FFmpeg. It seems I needed the parameter qscale. I don't have the blocks anymore. However it seems qscale is a value between 1-31, and I don't see any difference by setting it to 1,2,31, or even 99. Just setting it is fixing my problem at least.PyAV 使用FFmpeg(或LibAV)库直接从视频文件读取图像数据。 ... for packet in container.demux(): for frame in packet.decode(): if frame.type == 'video': img ...Sylvia Walters never planned to be in the food-service business. In fact, before she started Sylvia's Soul Plates in April, Walters was best known for fronting the local blues band Sylvia Walters and Groove City.There aren’t really any guides, but if you are interested you can research how AV is packaged. You’re looking for pts and dts to get the audio and video synced. You’d need to probably transcode the audio to get it to break up at the right points since we are splitting the video on I-frames (also research how video encoding works to understand the different frame types). the refinery apartments new orleans PyAV-Org / PyAV Public main PyAV/av/packet.pyx Go to file Cannot retrieve contributors at this time 200 lines (150 sloc) 5.16 KB Raw Blame cimport libav as lib from av.bytesource cimport bytesource from av.error cimport err_check from av.utils cimport avrational_to_fraction, to_avrational from av import deprecation cdef class Packet (Buffer): I'm trying to generate my own PyAV wheel but it looks like it's not ... i tried writing the packets both as raw bytes (using packet.to_bytes() ) and to a ...PyAV の検証 しながら、「作れちゃうよな」と思っただけ。今10分くらいで作った: 今10分くらいで作った: 1 import signal 2 import time 3 import av 4 from PIL import ImageGrab 5 6 class _Interrupt ( Exception ): 7 pass 8 9 def _IntHandler ( signum , frame ): 10 raise _Interrupt () 11 12 signal . signal ( signal .There aren’t really any guides, but if you are interested you can research how AV is packaged. You’re looking for pts and dts to get the audio and video synced. You’d need to probably transcode the audio to get it to break up at the right points since we are splitting the video on I-frames (also research how video encoding works to understand the different frame types). feeding therapy in spanish And while 99% of the time a video packet is one video frame, there is no guarantee, and so you'd be losing frames with this logic There is also the BS with the way threading works and "delays" …Here is part of my code (an exception is thrown when I try to save the packets using pickle, so the code doesn't work): import av import time import pickle # open container container = av.open (url) # url from a h264 stream # read packages from stream during 5 minutes and add them to a list packets = [] initialTime = time.time () for packet in ...container = av.open( self. filename) # Build a toc self. _toc = np.cuemsum([len( packet.decode()) for packet in container.demux()]) self. _len = self. _toc [-1] video_stream = [ s for s in container. streams if isinstance( s, av. video. A received sample contains several frames (44100 Hz) with 16 bit values stored in a numpy array. My goal is to use pyav to create an MP3 file of these samples on the fly. Unfortunately I can't find an example which helps me to solve my problem. I've already checked mikeboers/PyAV#498 but the input data is already a stream in this case. stihl pole saw shaft assembly The code to stream to a network is: import socket import time import picamera # Connect a client socket to my_server:8000 (change my_server to the # hostname of your server) client_socket = socket.socket () client_socket.connect ( ('my_server', 8000)) # Make a file-like object out of the connection connection = client_socket.makefile ('wb') try ...There aren’t really any guides, but if you are interested you can research how AV is packaged. You’re looking for pts and dts to get the audio and video synced. You’d need to probably transcode the audio to get it to break up at the right points since we are splitting the video on I-frames (also research how video encoding works to understand the different frame types). buick enclave transmission shudder Sylvia Walters never planned to be in the food-service business. In fact, before she started Sylvia's Soul Plates in April, Walters was best known for fronting the local blues band Sylvia Walters and Groove City.The part in your second example that says out_container.mux(packet) should be out_container.mux(out_pack); we've been muxing the original packets! 😆. Both mp3 and aac work for me now, even with all the warnings. I just pushed 014cdb2 which has my attempts at "fixing" the fifo and PTS stuff. See here. tifa no undershirt mod 15 de jul. de 2022 ... You can subscribe to the Packet Pushers' YouTube channel for more videos as they are published. It's a diverse a mix of content from Ethan ...fix your code to set the timestamps properly traceback (most recent call last): file "rgb_encoding.py", line 41, in output_container. mux_one(packet) file "av/container/output.pyx", line 227, in av .container.output.outputcontainer.mux_one file "av/container/core.pyx", line 258, in av .container.core.container.err_check file "av/error.pyx", …fix your code to set the timestamps properly traceback (most recent call last): file "rgb_encoding.py", line 41, in output_container. mux_one(packet) file "av/container/output.pyx", line 227, in av .container.output.outputcontainer.mux_one file "av/container/core.pyx", line 258, in av .container.core.container.err_check file "av/error.pyx", … ohio cities