Hi Carl, I built and installed ffmpeg from git head but the issue is still there.
ffmpeg started on 2021-06-10 at 12:48:51 Report written to "ffmpeg-20210610-124851.log" Log level: 48 Command line: ffmpeg -i Welcome.dss -acodec pcm_s16le output.wav -report ffmpeg version N-102686-g99bbf4a5be Copyright (c) 2000-2021 the FFmpeg developers built with Apple clang version 12.0.5 (clang-1205.0.22.9) configuration: libavutil 57. 0.100 / 57. 0.100 libavcodec 59. 1.101 / 59. 1.101 libavformat 59. 2.102 / 59. 2.102 libavdevice 59. 0.100 / 59. 0.100 libavfilter 8. 0.101 / 8. 0.101 libswscale 6. 0.100 / 6. 0.100 libswresample 4. 0.100 / 4. 0.100 Splitting the commandline. Reading option '-i' ... matched as input url with argument 'Welcome.dss'. Reading option '-acodec' ... matched as option 'acodec' (force audio codec ('copy' to copy stream)) with argument 'pcm_s16le'. Reading option 'output.wav' ... matched as output url. Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'. Finished splitting the commandline. Parsing a group of options: global . Applying option report (generate a report) with argument 1. Successfully parsed a group of options. Parsing a group of options: input url Welcome.dss. Successfully parsed a group of options. Opening an input file: Welcome.dss. [NULL @ 0x137e190d0] Opening 'Welcome.dss' for reading [file @ 0x137e19470] Setting default whitelist 'file,crypto,data' [dss @ 0x137e190d0] Format dss probed with size=2048 and score=100 [dss @ 0x137e190d0] Before avformat_find_stream_info() pos: 1024 bytes read:32768 seeks:0 nb_streams:1 [dss @ 0x137e190d0] All info found [dss @ 0x137e190d0] Estimating duration from bitrate, this may be inaccurate [dss @ 0x137e190d0] After avformat_find_stream_info() pos: 3104 bytes read:32768 seeks:0 frames:50 Input #0, dss, from 'Welcome.dss': Metadata: author : date : 2012-01-01T00:00:00 comment : Duration: 00:00:40.49, start: 0.000000, bitrate: 14 kb/s Stream #0:0, 50, 1/11025: Audio: dss_sp, 11025 Hz, mono, s16 Successfully opened the file. Parsing a group of options: output url output.wav. Applying option acodec (force audio codec ('copy' to copy stream)) with argument pcm_s16le. Successfully parsed a group of options. Opening an output file: output.wav. [file @ 0x127e04610] Setting default whitelist 'file,crypto,data' Successfully opened the file. Stream mapping: Stream #0:0 -> #0:0 (dss_sp (native) -> pcm_s16le (native)) Press [q] to stop, [?] for help cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream) detected 8 logical cores [graph_0_in_0_0 @ 0x137f0de50] Setting 'time_base' to value '1/11025' [graph_0_in_0_0 @ 0x137f0de50] Setting 'sample_rate' to value '11025' [graph_0_in_0_0 @ 0x137f0de50] Setting 'sample_fmt' to value 's16' [graph_0_in_0_0 @ 0x137f0de50] Setting 'channel_layout' to value '0x4' [graph_0_in_0_0 @ 0x137f0de50] tb:1/11025 samplefmt:s16 samplerate:11025 chlayout:0x4 [format_out_0_0 @ 0x137f0fba0] Setting 'sample_fmts' to value 's16' [AVFilterGraph @ 0x127e057d0] query_formats: 4 queried, 9 merged, 0 already done, 0 delayed Output #0, wav, to 'output.wav': Metadata: author : ICRD : 2012-01-01T00:00:00 ICMT : ISFT : Lavf59.2.102 Stream #0:0, 0, 1/11025: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 11025 Hz, mono, s16, 176 kb/s Metadata: encoder : Lavc59.1.101 pcm_s16le size= 1kB time=00:00:00.02 bitrate= 211.8kbits/s speed=1.84e+03x [out_0_0 @ 0x137f0ffb0] EOF on sink link out_0_0:default. No more output streams to write to, finishing. size= 872kB time=00:00:40.46 bitrate= 176.4kbits/s speed=1.77e+03x video:0kB audio:871kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.011879% Input file #0 (Welcome.dss): Input stream #0:0 (audio): 1690 packets read (70980 bytes); 1690 frames decoded (446160 samples); Total: 1690 packets (70980 bytes) demuxed Output file #0 (output.wav): Output stream #0:0 (audio): 1690 frames encoded (446160 samples); 1690 packets muxed (892320 bytes); Total: 1690 packets (892320 bytes) muxed 1690 frames successfully decoded, 0 decoding errors [AVIOContext @ 0x127e04680] Statistics: 4 seeks, 6 writeouts [AVIOContext @ 0x137e19580] Statistics: 71168 bytes read, 0 seeks > On 10-Jun-2021, at 2:26 AM, Carl Eugen Hoyos <ceffm...@gmail.com> wrote: > > Am Mi., 9. Juni 2021 um 18:00 Uhr schrieb Aman Bisht <a...@antstack.io>: > >> ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers > > Is the issue you see reproducible with current FFmpeg git head? > > Carl Eugen > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".