[FFmpeg-trac] #8548(undetermined:new): Segmentation fault with stream source and watermark

FFmpeg trac at avcodec.org
Wed Mar 4 00:33:34 EET 2020


#8548: Segmentation fault with stream source and watermark
--------------------------------------+----------------------------------
             Reporter:  diicepoo      |                     Type:  defect
               Status:  new           |                 Priority:  normal
            Component:  undetermined  |                  Version:  4.2
             Keywords:                |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
--------------------------------------+----------------------------------
 I use release: 4.2.2 (static)

 Final code will be on "Amazon AWS lambda"
 Goal: use a url stream and add watermak

 Link to video: https://feoval.fr/519.mp4
 Link to Watermak: https://feoval.fr/watermark.png

 {{{
 % ./ffmpeg -i "https://feoval.fr/519.mp4" -i "./watermark.png"
 -filter_complex "overlay=W-w-10:H-h-10:format=rgb" -f "mp4" -movflags
 "frag_keyframe+empty_moov" -pix_fmt "yuv420p" test.mp4
 }}}
 return "Segmentation fault"

 {{{
 % ./ffmpeg -i "https://feoval.fr/519.mp4" -f "mp4" -movflags
 "frag_keyframe+empty_moov" -pix_fmt "yuv420p" test.mp4
 }}}
 work (but not watermak ^^)

 {{{
 % ./ffmpeg -i "./519.mp4" -i "./watermark.png" -filter_complex
 "overlay=W-w-10:H-h-10:format=rgb" -f "mp4" -movflags
 "frag_keyframe+empty_moov" -pix_fmt "yuv420p" test.mp4
 }}}
 work (but not with stream ^^)

 Thanks you very much !

 --------------------------------------------

 Logs for the first case who return "Segmentation fault":
 ...
 Stream mapping:
   Stream #0:0 (h264) -> overlay:main (graph 0)
   Stream #1:0 (png) -> overlay:overlay (graph 0)
   overlay (graph 0) -> Stream #0:0 (libx264)
   Stream #0:1 -> #0:1 (aac (native) -> aac (native))
 Press [q] to stop, [?] for help
 [libx264 @ 0x742e480] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
 AVX
 [libx264 @ 0x742e480] profile High, level 3.1, 4:2:0, 8-bit
 [libx264 @ 0x742e480] 264 - core 159 r2991 1771b55 - H.264/MPEG-4 AVC
 codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options:
 cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1
 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1
 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12
 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0
 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25
 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
 Output #0, mp4, to 'test.mp4':
   Metadata:
     major_brand     : mp42
     minor_version   : 1
     compatible_brands: isommp41mp42
     encoder         : Lavf58.29.100
     Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p,
 480x848, q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
     Metadata:
       encoder         : Lavc58.54.100 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
     Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
 stereo, fltp, 128 kb/s (default)
     Metadata:
       creation_time   : 2020-01-13T08:54:26.000000Z
       handler_name    : Core Media Audio
       encoder         : Lavc58.54.100 aac
 Segmentation fault (core dumped)

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8548>
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