#9727: AAC_AT: broken VBR / missing VBR handle ---------------------------------+--------------------------------------- Reporter: mcccs | Type: defect Status: new | Priority: normal Component: avcodec | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ---------------------------------+--------------------------------------- aac_at needs to accept "-vbr" threshold-specifier to work in VBR mode. For example, "ffmpeg -h encoder=libfdk_aac" shows the arg "-vbr <int> VBR mode (1-5)" However "ffmpeg -h encoder=aac_at" shows no such argument for VBR AAC using AAC_AT (it's not only "-h" page missing, "-vbr <int> doesn't work") Moreover, files currently produced with "-c:a aac_at -aac_at_mode 3" produce CBR instead of VBR. So simple AAC_AT completely lacks modes 2 (VBR + Cap) and 3 (VBR) -- Ticket URL: <https://trac.ffmpeg.org/ticket/9727> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker