[FFmpeg-trac] #10210(avcodec:new): On Windows with x86 build, calling avcodec_send_packet does not free FPU registers

FFmpeg trac at avcodec.org
Fri Mar 10 21:06:22 EET 2023


#10210: On Windows with x86 build, calling avcodec_send_packet does not free FPU
registers
-------------------------------------+-------------------------------------
             Reporter:  Kevin        |                    Owner:  (none)
  Coulombe                           |
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  avcodec FPU  |               Blocked By:
  fld ST0 x87                        |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by Seb):

 I cannot reproduce the problem with FFmpeg HEAD because the mjpeg decoder
 has been changed from `FF_CODEC_CB_TYPE_RECEIVE_FRAME` to
 `FF_CODEC_DECODE_CB`.

 The decoder code now goes through `decode_simple_internal()` which calls
 `emms_c()` to make the FPU available.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10210#comment:5>
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