Opened 8 years ago
Last modified 8 years ago
#6036 open defect
sipr: improve decoding of 16khz 16kbps mode
Reported by: | ami_stuff | Owned by: | |
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Priority: | normal | Component: | avcodec |
Version: | git-master | Keywords: | sipr |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | yes | |
Analyzed by developer: | no |
Description
this bug deserves it's own ticket
there are metalic artifacts between 21s-32s
C:\>ffmpeg -i sipr_16k_could_be_better.rm out.wav ffmpeg version 3.2.git Copyright (c) 2000-2016 the FFmpeg developers built with gcc 4.6.2 (GCC) configuration: --disable-pthreads --enable-gpl libavutil 55. 43.100 / 55. 43.100 libavcodec 57. 68.100 / 57. 68.100 libavformat 57. 61.100 / 57. 61.100 libavdevice 57. 2.100 / 57. 2.100 libavfilter 6. 68.100 / 6. 68.100 libswscale 4. 3.101 / 4. 3.101 libswresample 2. 4.100 / 2. 4.100 libpostproc 54. 2.100 / 54. 2.100 [rm @ 02243d60] Invalid stream index 1 for index at pos 81173 [sipr @ 0224d380] Warning: not compiled with thread support, using thread emulat ion Input #0, rm, from 'sipr_16k_could_be_better. rm': Metadata: Generated By : RealProducer 6.1.0.153 Windows Content Rating : (PICS-1.1 "http://www.classify.org/safesurf" labels commen t "RealProducer 6.1.0.153 Windows" ratings (SS~~000 1)) Target Audiences: 28K Modem (20 Kbps); Audio Format : Voice with Background Music Video Quality : No Video Creation Date : 12/19/2016 3:26:44 Modification Date: 12/19/2016 3:26:44 File ID : 5001d8cc-b0c8-5861-36e0-07a19838af8b Keywords : Abstract : title : Inp author : copyright : ę2016 comment : Duration: 00:00:38.31, start: 0.000000, bitrate: 16 kb/s Stream #0:0: Audio: sipr (sipr / 0x72706973), 16000 Hz, mono, flt, 16 kb/s [sipr @ 025d9c00] Warning: not compiled with thread support, using thread emulat ion [pcm_s16le @ 02247140] Warning: not compiled with thread support, using thread e mulation Output #0, wav, to 'out.wav': Metadata: Generated By : RealProducer 6.1.0.153 Windows Content Rating : (PICS-1.1 "http://www.classify.org/safesurf" labels commen t "RealProducer 6.1.0.153 Windows" ratings (SS~~000 1)) Target Audiences: 28K Modem (20 Kbps); Audio Format : Voice with Background Music Video Quality : No Video Creation Date : 12/19/2016 3:26:44 Modification Date: 12/19/2016 3:26:44 File ID : 5001d8cc-b0c8-5861-36e0-07a19838af8b Keywords : Abstract : INAM : Inp author : ICOP : ę2016 ICMT : ISFT : Lavf57.61.100 Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 16000 Hz, mono, s16, 256 kb/s Metadata: encoder : Lavc57.68.100 pcm_s16le Stream mapping: Stream #0:0 -> #0:0 (sipr (native) -> pcm_s16le (native)) Press [q] to stop, [?] for help size= 1200kB time=00:00:38.31 bitrate= 256.6kbits/s speed= 189x video:0kB audio:1200kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.008464%
Attachments (3)
Change History (4)
by , 8 years ago
Attachment: | sipr_8k_decodes_ok.rm added |
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by , 8 years ago
Attachment: | sipr_16k_could_be_better.rm added |
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by , 8 years ago
Attachment: | acelp_16k.wma added |
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comment:1 by , 8 years ago
Component: | undetermined → avcodec |
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Keywords: | sipr added |
Reproduced by developer: | set |
Status: | new → open |
Version: | unspecified → git-master |
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