#9502: Intermittent error when opening audio device with avfoundation (mac) ----------------------------------+--------------------------------------- Reporter: toots | Type: defect Status: new | Priority: normal Component: avdevice | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ----------------------------------+--------------------------------------- We are having intermittent issues when quickly opening/closing avfoundation. The error that shows up: ``` [avfoundation @ 0x7f964f032200] audio format is not supported ``` The attached file can be used to reproduce the error. Please note that the original icecast connection details have been edited out. Full log: ``` ./ffmpeg Starting ffmpeg connection test.. Input #0, avfoundation, from 'default': Duration: N/A, start: 324489.404308, bitrate: 2822 kb/s Stream #0:0: Audio: pcm_f32le, 44100 Hz, stereo, flt, 2822 kb/s Output #0, mp3, to 'icecast': Metadata: TSSE : Lavf58.76.100 Stream #0:0: Audio: mp3 (libmp3lame), 44100 Hz, stereo, s32p, 128 kb/s Reached max time! [Parsed_astats_1 @ 0x7f964ec41b00] Channel: 1 [Parsed_astats_1 @ 0x7f964ec41b00] RMS level dB: -64.770078 [Parsed_astats_1 @ 0x7f964ec41b00] Channel: 2 [Parsed_astats_1 @ 0x7f964ec41b00] RMS level dB: -64.770078 [Parsed_astats_1 @ 0x7f964ec41b00] Overall [libmp3lame @ 0x7f964f875000] 4 frames left in the queue on closing One iteration done.. Input #0, avfoundation, from 'default': Duration: N/A, start: 324492.892676, bitrate: 2822 kb/s Stream #0:0: Audio: pcm_f32le, 44100 Hz, stereo, flt, 2822 kb/s Output #0, mp3, to 'icecast': Metadata: TSSE : Lavf58.76.100 Stream #0:0: Audio: mp3 (libmp3lame), 44100 Hz, stereo, s32p, 128 kb/s Reached max time! [Parsed_astats_1 @ 0x7f964ec5ee40] Channel: 1 [Parsed_astats_1 @ 0x7f964ec5ee40] RMS level dB: -64.933917 [Parsed_astats_1 @ 0x7f964ec5ee40] Channel: 2 [Parsed_astats_1 @ 0x7f964ec5ee40] RMS level dB: -64.933917 [Parsed_astats_1 @ 0x7f964ec5ee40] Overall [libmp3lame @ 0x7f965100a800] 4 frames left in the queue on closing One iteration done.. [avfoundation @ 0x7f964f032200] audio format is not supported errror: Input/output error One iteration done.. ``` Version: 4.4.1 -- Ticket URL: <https://trac.ffmpeg.org/ticket/9502> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker