June 2016 - FFmpeg-trac - lists.ffmpeg.org

#4937(undetermined:new): memory leak in muxing.c
by FFmpeg 03 Sep '21

03 Sep '21

#4937: memory leak in muxing.c -------------------------------------+------------------------------------- Reporter: blinky0815 | Type: defect Status: new | Priority: critical Component: | Version: git- undetermined | master Keywords: memory leak | Blocked By: in muxing.c | Reproduced by developer: 0 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- **Summary of the bug:** This is a tiny but very nasty memory leak and is only noticeable when encoding/muxing a large video. I first noticed it when encoding/muxing a webcam video and sound for more than two hours, hence the 7200 seconds. My program eventually ran out of memory because of this issue. Since this is an important example other programmers rely on in order to write their own code, it's critical. At least very important. //At first, I assumed a bug in my own code, but the issue can be easily reproduced by using the '''muxing.c''' example.// **How to reproduce:** 1: Edit the source of muxing.c and set the duration to 7200 seconds. Really, any long duration will do. The longer, the better. 2: Set the FPS to 30. The more frames per second, the faster the memory gets eaten away. 3: **Optional:** comment the code in log_packet or disable logging. 4: compile using make or PKG_CONFIG_PATH=pc-uninstalled make 4: start with ./muxing test.mkv 5: open top and watch the bytes disappear. **My System:** Distributor ID: Ubuntu Description: Ubuntu 14.04.3 LTS Release: 14.04 Codename: trusty **Compiler:** gcc (Ubuntu 4.9.2-0ubuntu1~14.04) 4.9.2 **Kernel:** 3.13.0-65-generic //I know someone already posted a memory leak issue regarding muxing.c back in 2013, but the information given was brief and a bit inconclusive to say the least.// -- Ticket URL: <https://trac.ffmpeg.org/ticket/4937> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 19

#5583(undetermined:new): support for openmp of soxr
by FFmpeg 28 Aug '21

28 Aug '21

#5583: support for openmp of soxr -------------------------------------+------------------------------------- Reporter: ponpon | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- i requests support for openmp of soxr. i did some tests. from it, it doesn't seem that ffmpeg suppors openmp of soxr, though ffmpeg might support the multithreads of soxr with override. i exchanged e-mail with the developerof soxr, Rob. he said that {{{ soxr threading is based on the number of audio channels being processed, i.e. one thread can be assigned to each channel. However, soxr threading is not enabled in ffmpeg. With the latest soxr in git, it is possible to override runtime parameters set by the application, e.g. export SOXR_NUM_THREADS=0 # 0 means automatic: under control of OpenMP export OMP_NUM_THREADS=2 # For stereo audio. However, this does not work well with ffmpeg. I guess that the reason for this is that ffmpeg tries to minimise latency by using small buffer sizes, and small buffer sizes give a large overhead when multi-threading. I don't know if ffmpeg buffer size (for audio) can be adjusted. Using an application with larger buffers (e.g. the soxr examples, with input + output buffer sizes = 15k samples/channel), I find that 2 openmp threads (on 2 cores, not 2 x86 hyperthreads on one core) will reduce processing time for stereo audio to about 66% (x86), 54% (ARM). }}} and, moreover, that {{{ SIMD improvements for both single and double precision are coming soon! }}} i believe that combination ffmpeg and soxr with the openmp and new simd is useful for many users. -- Ticket URL: <https://trac.ffmpeg.org/ticket/5583> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 4

#5536(ffmpeg:new): Segmentation fault (core dumped) on large file
by FFmpeg 28 Aug '21

28 Aug '21

#5536: Segmentation fault (core dumped) on large file -------------------------------------+------------------------------------- Reporter: Sap1ens | Type: defect Status: new | Priority: normal Component: ffmpeg | Version: git- Keywords: large | master images, mp4, libx265, HEVC | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- I am using ffmpeg to compress some big images (about 3500 3000x8000 .tiff files) and I am using this command: {{{ ffmpeg -y -framerate 30 -start_number 13244 -i sources/full/full_0%03d.tif -c:v libx265 -r 30 -x265-params crf=22 -pix_fmt yuv420p sources/full_brain.mp4 }}} When I run it on small sets of small images, it works just fine, but on the big images it crashes after a few frames with messages like {{{ Segmentation fault (core dumped) 0kB time=00:00:00.00 bitrate=N/A speed= 0x }}} I tried compressing fewer files, but it still segfaults. I don't think that it is a memory problem, since I have 96 GB of RAM and the same amount of swap. Also I tried again the command on the smaller sets and it keeps going just fine. I am running Ubuntu 14.04.4 LTS (school property, I don't have sudo privileges) and using the static build. I have included a log file generated with -report, please tell me if you need anything else. Also, I just noticed that H.264 encoding through libx264 does not run into the problem, still I would need HEVC encoding if possible. Thank you in advance, Enrico -- Ticket URL: <https://trac.ffmpeg.org/ticket/5536> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 16

#5356(swscale:new): Segmentation fault
by FFmpeg 28 Aug '21

28 Aug '21

#5356: Segmentation fault ----------------------------------+--------------------------------------- Reporter: somethin | Type: defect Status: new | Priority: normal Component: swscale | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ----------------------------------+--------------------------------------- OS: Gentoo Linux Architecture: amd64 Summary of the bug: obs-studio Segmentation fault. gdb backtrace says that ffmpeg(libswscale) is the problem. How to reproduce: {{{ obs <File - Settings - Output - Recording Quality: set Lossless Quality > <File - Settings - Output - Video - Output (Scaled) Resolution: set to 1680x1050> Start Recording Segmentation fault }}} GNU Debugger Backtrace (Thread 5 crashes) {{{ Thread 17 (Thread 0x7fffc1738700 (LWP 28781)): #0 0x00007ffff3da6358 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 No symbol table info available. #1 0x00007ffff7b7c3c1 in os_event_timedwait (event=0x7d6d60, milliseconds=milliseconds@entry=30000) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/libobs/util/threading-posix.c:118 ts = {tv_sec = 1458570161, tv_nsec = 778441589} code = 0 #2 0x00007ffff7b7c74b in screensaver_thread (param=0x7d5700) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/libobs/util/platform-nix.c:539 info = 0x7d5700 #3 0x00007ffff3da0424 in start_thread () from /lib64/libpthread.so.0 No symbol table info available. #4 0x00007ffff3ae63bd in clone () from /lib64/libc.so.6 No symbol table info available. Thread 16 (Thread 0x7fffc1f39700 (LWP 28780)): #0 0x00007ffff3da81e7 in do_futex_wait.constprop () from /lib64/libpthread.so.0 No symbol table info available. #1 0x00007ffff3da8294 in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0 No symbol table info available. #2 0x00007ffff7b7c566 in os_sem_wait (sem=<optimized out>) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/libobs/util/threading-posix.c:244 No locals. #3 0x00007fffcb7e31dc in write_thread (data=0xd81d00) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/plugins/obs-ffmpeg/obs-ffmpeg-output.c:852 output = 0xd81d00 #4 0x00007ffff3da0424 in start_thread () from /lib64/libpthread.so.0 No symbol table info available. #5 0x00007ffff3ae63bd in clone () from /lib64/libc.so.6 No symbol table info available. Thread 13 (Thread 0x7fffc9880700 (LWP 28777)): #0 0x00007ffff3add33d in poll () from /lib64/libc.so.6 No symbol table info available. #1 0x00007fffef5a4a3a in poll (__timeout=-1, __nfds=3, __fds=0x7fffbc009270) at /usr/include/bits/poll2.h:46 No locals. #2 poll_func (ufds=0x7fffbc009270, nfds=3, timeout=-1, userdata=userdata@entry=0xdaace0) at /var/tmp/portage/media- sound/pulseaudio-8.0/work/pulseaudio-8.0/src/pulse/thread-mainloop.c:69 mutex = <optimized out> __func__ = "poll_func" __PRETTY_FUNCTION__ = "poll_func" #3 0x00007fffef595e10 in pa_mainloop_poll (m=m@entry=0xda4950) at /var/tmp/portage/media- sound/pulseaudio-8.0/work/pulseaudio-8.0/src/pulse/mainloop.c:844 __func__ = "pa_mainloop_poll" __PRETTY_FUNCTION__ = "pa_mainloop_poll" #4 0x00007fffef5960dc in pa_mainloop_iterate (m=m@entry=0xda4950, block=block@entry=1, retval=retval@entry=0x0) at /var/tmp/portage/media- sound/pulseaudio-8.0/work/pulseaudio-8.0/src/pulse/mainloop.c:926 r = 0 __func__ = "pa_mainloop_iterate" __PRETTY_FUNCTION__ = "pa_mainloop_iterate" #5 0x00007fffef59612f in pa_mainloop_run (m=0xda4950, retval=retval@entry=0x0) at /var/tmp/portage/media- sound/pulseaudio-8.0/work/pulseaudio-8.0/src/pulse/mainloop.c:944 r = <optimized out> #6 0x00007fffef5a4b03 in thread (userdata=0xda4910) at /var/tmp/portage/media- sound/pulseaudio-8.0/work/pulseaudio-8.0/src/pulse/thread-mainloop.c:100 m = 0xda4910 mask = {__val = {18446744067267100671, 18446744073709551615 <repeats 15 times>}} prev_mask = {__val = {0, 140736574522960, 0, 140737351974512, 140736347506880, 140737168170182, 0, 140737351974512, 0, 140737286701496, 0, 140737488345359, 3, 140737488345360, 0, 140737351947453}} sa = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {0, 140737488345263, 140737208999440, 14409136, 4294967295, 0, 16853190965116348416, 0, 1, 14409136, 140737209000170, 0, 14409136, 0, 140737209000239, 140737488345264}}, sa_flags = 0, sa_restorer = 0x0} #7 0x00007fffecea5f78 in internal_thread_func (userdata=0xda72f0) at /var/tmp/portage/media- sound/pulseaudio-8.0/work/pulseaudio-8.0/src/pulsecore/thread-posix.c:81 t = 0xda72f0 __func__ = "internal_thread_func" __PRETTY_FUNCTION__ = "internal_thread_func" #8 0x00007ffff3da0424 in start_thread () from /lib64/libpthread.so.0 No symbol table info available. #9 0x00007ffff3ae63bd in clone () from /lib64/libc.so.6 No symbol table info available. Thread 6 (Thread 0x7fffd4e54700 (LWP 28770)): #0 0x00007ffff3da956d in nanosleep () from /lib64/libpthread.so.0 No symbol table info available. #1 0x00007ffff7b7ca84 in os_sleepto_ns (time_target=<optimized out>, time_target@entry=12170264855660) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/libobs/util/platform-nix.c:142 current = <optimized out> req = {tv_sec = 0, tv_nsec = 8579268} remain = {tv_sec = 0, tv_nsec = 5531227} #2 0x00007ffff7bb70a0 in video_sleep (interval_ns=16666666, p_time=0x8b5e50, video=0x8b5d88) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/libobs/obs-video.c:501 vframe_info = {timestamp = 12170181522330, count = 1} cur_time = 12170248188994 t = 12170264855660 count = <optimized out> #3 obs_video_thread (param=<optimized out>) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/libobs/obs-video.c:604 last_time = 12170248188994 interval = 16666666 video_thread_name = 0x7fffcc0008e0 "obs_video_thread(16.6667 ms)" #4 0x00007ffff3da0424 in start_thread () from /lib64/libpthread.so.0 No symbol table info available. #5 0x00007ffff3ae63bd in clone () from /lib64/libc.so.6 No symbol table info available. Thread 5 (Thread 0x7fffe0bcf700 (LWP 28769)): #0 0x00007ffff337118f in ff_nv12ToUV_avx () from /usr/lib64/libswscale.so.3 No symbol table info available. #1 0x00007ffff3376ae0 in deinterleaveBytes_avx ( src=0x7fffe02f6ac0 "\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201"..., dst1=0x7fffc20e8ae0 '\177' <repeats 16 times>, dst2=0x7fffc2154588 "", width=840, height=525, srcStride=1680, dst1Stride=840, dst2Stride=840) at /var/tmp/portage/media- video/ffmpeg-2.8.6/work/ffmpeg-2.8.6/libswscale/x86/rgb2rgb_template.c:1978 h = 0 #2 0x00007ffff336381f in nv12ToPlanarWrapper (c=0x7fffac003f20, src=0x7fffe0bcebc0, srcStride=0x7fffe0bceba0, srcSliceY=<optimized out>, srcSliceH=1050, dstParam=<optimized out>, dstStride=0x7fffe0bcebb0) at /var/tmp/portage/media- video/ffmpeg-2.8.6/work/ffmpeg-2.8.6/libswscale/swscale_unscaled.c:191 dst1 = 0x7fffc20e8ae0 '\177' <repeats 16 times> dst2 = 0x7fffc2154588 "" #3 0x00007ffff335a017 in sws_scale (c=0x7fffac003f20, srcSlice=srcSlice@entry=0x7fffe0bcedf0, srcStride=srcStride@entry=0x7fffe0bcee30, srcSliceY=srcSliceY@entry=0, srcSliceH=1050, dst=dst@entry=0xd81d48, dstStride=0xd81d88) at /var/tmp/portage/media- video/ffmpeg-2.8.6/work/ffmpeg-2.8.6/libswscale/swscale.c:1246 srcStride2 = {1680, 1680, 0, 0} dstStride2 = {1680, 840, 840, 0} i = <optimized out> ret = <optimized out> src2 = { 0x7fffe0148020 '\334' <repeats 118 times>, "ܒ", '\222' <repeats 80 times>..., 0x7fffe02f6ac0 "\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201"..., 0x0, 0x0} dst2 = { 0x7fffc1f3a040 '\334' <repeats 118 times>, "ܒ", '\222' <repeats 80 times>..., 0x7fffc20e8ae0 '\177' <repeats 16 times>, 0x7fffc2154588 "", 0x0} rgb0_tmp = 0x0 macro_height = <optimized out> #4 0x00007fffcb7e3c6a in receive_video (param=0xd81d00, frame=0x7fffe0bcedf0) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/plugins/obs-ffmpeg/obs-ffmpeg-output.c:654 output = <optimized out> data = <optimized out> context = 0x7fffac002ea0 packet = {buf = 0x0, pts = -9223372036854775808, dts = -9223372036854775808, data = 0x0, size = 0, stream_index = 0, flags = 0, side_data = 0x0, side_data_elems = 0, duration = 0, destruct = 0x0, priv = 0x0, pos = -1, convergence_duration = 0} ret = 0 got_packet = 32767 #5 0x00007ffff7b8e19e in default_raw_video_callback (param=0xd80c60, frame=<optimized out>) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/libobs/obs-output.c:1220 output = 0xd80c60 #6 0x00007ffff7b6a42b in video_output_cur_frame (video=0xd34e60) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/libobs/media-io/video-io.c:135 input = 0x7fffac01bbc0 frame = {data = { 0x7fffe0148020 '\334' <repeats 118 times>, "ܒ", '\222' <repeats 80 times>..., 0x7fffe02f6ac0 "\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\200\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201\177\201"..., 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, linesize = { 1680, 1680, 0, 0, 0, 0, 0, 0}, timestamp = 12170164855664} i = 0 frame_info = 0xd34f40 complete = <optimized out> #7 video_thread (param=0xd34e60) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/libobs/media-io/video-io.c:177 video = 0xd34e60 video_thread_name = 0x7fffd00008e0 "video_thread(video)" #8 0x00007ffff3da0424 in start_thread () from /lib64/libpthread.so.0 No symbol table info available. #9 0x00007ffff3ae63bd in clone () from /lib64/libc.so.6 No symbol table info available. Thread 4 (Thread 0x7fffe3da7700 (LWP 28768)): #0 0x00007ffff3ab618d in nanosleep () from /lib64/libc.so.6 No symbol table info available. #1 0x00007ffff3adf794 in usleep () from /lib64/libc.so.6 No symbol table info available. #2 0x00007ffff7b7c9a1 in os_sleep_ms (duration=duration@entry=23) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/libobs/util/platform-nix.c:152 No locals. #3 0x00007ffff7b6b5bb in audio_thread (param=0x932bc0) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/libobs/media-io/audio-io.c:262 cur_time = <optimized out> audio = 0x932bc0 rate = 44100 samples = 84992 start_time = 12168338892957 prev_time = 12170266149192 audio_time = 12170266149192 audio_wait_time = 23 audio_thread_name = 0x7fffd80008e0 "audio_thread(Audio)" #4 0x00007ffff3da0424 in start_thread () from /lib64/libpthread.so.0 No symbol table info available. #5 0x00007ffff3ae63bd in clone () from /lib64/libc.so.6 No symbol table info available. Thread 3 (Thread 0x7fffe8977700 (LWP 28767)): #0 0x00007ffff3da6358 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 No symbol table info available. #1 0x00007ffff7b7c3c1 in os_event_timedwait (event=0x887660, milliseconds=milliseconds@entry=25) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/libobs/util/threading-posix.c:118 ts = {tv_sec = 1458570131, tv_nsec = 822157503} code = 0 #2 0x00007ffff7ba5ae1 in obs_hotkey_thread (arg=<optimized out>) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/libobs/obs-hotkey.c:1302 hotkey_thread_name = 0x7fffdc0008e0 "obs_hotkey_thread(25 ms)" #3 0x00007ffff3da0424 in start_thread () from /lib64/libpthread.so.0 No symbol table info available. #4 0x00007ffff3ae63bd in clone () from /lib64/libc.so.6 No symbol table info available. Thread 2 (Thread 0x7fffe9a44700 (LWP 28766)): #0 0x00007ffff3add33d in poll () from /lib64/libc.so.6 No symbol table info available. #1 0x00007ffff7046cf6 in poll (__timeout=-1, __nfds=1, __fds=0x7fffe9a43d90) at /usr/include/bits/poll2.h:46 No locals. #2 _xcb_conn_wait (c=c@entry=0x7a3d60, cond=cond@entry=0x7a3da0, vector=vector@entry=0x0, count=count@entry=0x0) at /var/tmp/portage/x11-libs/libxcb-1.11.1/work/libxcb-1.11.1/src/xcb_conn.c:459 ret = <optimized out> fd = {fd = 3, events = 1, revents = 0} #3 0x00007ffff70485f7 in xcb_wait_for_event (c=0x7a3d60) at /var/tmp/portage/x11-libs/libxcb-1.11.1/work/libxcb-1.11.1/src/xcb_in.c:693 ret = 0x0 #4 0x00007ffff7ed79b8 in QXcbEventReader::run (this=0x7a2520) at qxcbconnection.cpp:1229 event = 0x0 #5 0x00007ffff48e3e42 in QThreadPrivate::start (arg=0x7a2520) at thread/qthread_unix.cpp:331 __clframe = { __cancel_routine = 0x7ffff48e33d8 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x7a2520, __do_it = 1, __cancel_type = -1} thr = 0x7a2520 data = 0x7a2880 objectName = {static null = {<No data fields>}, d = 0x7ffff4b38600 <QArrayData::shared_null>} #6 0x00007ffff3da0424 in start_thread () from /lib64/libpthread.so.0 No symbol table info available. #7 0x00007ffff3ae63bd in clone () from /lib64/libc.so.6 No symbol table info available. Thread 1 (Thread 0x7ffff7fa97c0 (LWP 28762)): #0 0x00007ffff3add33d in poll () from /lib64/libc.so.6 No symbol table info available. #1 0x00007fffee75f687 in poll (__timeout=934, __nfds=3, __fds=0x84fcb0) at /usr/include/bits/poll2.h:46 No locals. #2 g_poll (fds=fds@entry=0x84fcb0, nfds=nfds@entry=3, timeout=timeout@entry=934) at /var/tmp/portage/dev- libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gpoll.c:124 No locals. #3 0x00007fffee74e846 in g_main_context_poll ( context=context@entry=0x7fffe40016f0, timeout=934, priority=<optimized out>, fds=fds@entry=0x84fcb0, n_fds=n_fds@entry=3) at /var/tmp/portage/dev- libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:4135 poll_func = 0x7fffee75f67c <g_poll> #4 0x00007fffee75115d in g_main_context_iterate ( context=context@entry=0x7fffe40016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /var/tmp/portage/dev- libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3835 max_priority = 2147483647 timeout = 934 some_ready = <optimized out> nfds = 3 allocated_nfds = 3 fds = 0x84fcb0 #5 0x00007fffee751237 in g_main_context_iteration (context=0x7fffe40016f0, may_block=may_block@entry=1) at /var/tmp/portage/dev- libs/glib-2.46.2-r2/work/glib-2.46.2/glib/gmain.c:3901 retval = <optimized out> #6 0x00007ffff4ac2d83 in QEventDispatcherGlib::processEvents (this=0x7cf560, flags=...) at kernel/qeventdispatcher_glib.cpp:418 d = 0x7cf620 canWait = true savedFlags = <optimized out> result = <optimized out> #7 0x00007ffff7f0767c in QPAEventDispatcherGlib::processEvents ( this=<optimized out>, flags=...) at eventdispatchers/qeventdispatcher_glib.cpp:115 No locals. #8 0x00007ffff4a74453 in QEventLoop::processEvents ( this=this@entry=0x7fffffffe1a0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:128 d = <optimized out> #9 0x00007ffff4a74865 in QEventLoop::exec (this=this@entry=0x7fffffffe1a0, flags=flags@entry=...) at kernel/qeventloop.cpp:204 d = 0x8219a0 locker = {val = 7966448} ref = {d = 0x8219a0, locker = @0x7fffffffe100, exceptionCaught = true} #10 0x00007ffff4a7b220 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229 threadData = 0x796e00 eventLoop = {<QObject> = { _vptr.QObject = 0x7ffff4d1bf58 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff4bd6180 <qt_meta_stringdata_QObject>, data = 0x7ffff4bd6060 <qt_meta_data_QObject>, static_metacall = 0x7ffff4aa530e <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x8219a0}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff4c89f40 <qt_meta_stringdata_Qt>, data = 0x7ffff4c87540 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = { superdata = 0x7ffff4d1de40 <QObject::staticMetaObject>, stringdata = 0x7ffff4c9ef00 <qt_meta_stringdata_QEventLoop>, data = 0x7ffff4c9eea0 <qt_meta_data_QEventLoop>, static_metacall = 0x7ffff4b14bf0 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}} returnCode = <optimized out> #11 0x00007ffff4e089f8 in QGuiApplication::exec () at kernel/qguiapplication.cpp:1527 No locals. #12 0x0000000000469625 in run_program (logFile=..., argc=argc@entry=1, argv=argv@entry=0x7fffffffe638) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/obs/obs-app.cpp:1095 translator = {<QTranslator> = {<QObject> = { _vptr.QObject = 0x756f90 <vtable for OBSTranslator+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff4bd6180 <qt_meta_stringdata_QObject>, data = 0x7ffff4bd6060 <qt_meta_data_QObject>, static_metacall = 0x7ffff4aa530e <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x7d4860}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff4c89f40 <qt_meta_stringdata_Qt>, data = 0x7ffff4c87540 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = { superdata = 0x7ffff4d1de40 <QObject::staticMetaObject>, stringdata = 0x7ffff4ca17a0 <qt_meta_stringdata_QTranslator>, data = 0x7ffff4ca1760 <qt_meta_data_QTranslator>, static_metacall = 0x7ffff4b15606 <QTranslator::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = { superdata = 0x7ffff4d1c3e0 <QTranslator::staticMetaObject>, stringdata = 0x5316a0 <qt_meta_stringdata_OBSTranslator>, data = 0x531660 <qt_meta_data_OBSTranslator>, static_metacall = 0x502c4c <OBSTranslator::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}} profilerNameStore = std::unique_ptr<profiler_name_store> containing 0x796940 prof_release = std::unique_ptr<void> containing 0x75fe28 <ProfilerFree> prof = {name = 0x508e48 "run_program_init", enabled = false} program = {<QApplication> = {<No data fields>}, static staticMetaObject = {d = { superdata = 0x7ffff7afe860 <QApplication::staticMetaObject>, stringdata = 0x531640 <qt_meta_stringdata_OBSApp>, data = 0x531600 <qt_meta_data_OBSApp>, static_metacall = 0x502c4e <OBSApp::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, locale = "en-US", theme = "Default", globalConfig = { config = 0x7d6ba0}, textLookup = {lookup = 0x7d6a40}, obsContext = {<No data fields>}, mainWindow = {wp = {d = 0x8f3ef0, value = 0x824d50}}, profilerNameStore = 0x796940, sleepInhibitor = 0x7d5700, sleepInhibitRefs = 1} #13 0x0000000000469844 in main (argc=1, argv=0x7fffffffe638) at /var/tmp/portage/media-video/obs-studio-0.13.2/work/obs- studio-0.13.2/obs/obs-app.cpp:1484 logFile = <incomplete type> ret = <optimized out> }}} Patches should be submitted to the ffmpeg-devel mailing list and not this bug tracker. -- Ticket URL: <https://trac.ffmpeg.org/ticket/5356> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 3

#5231(avcodec:new): Crashes in ff_deblock_v_luma_8_sse2
by FFmpeg 28 Aug '21

28 Aug '21

#5231: Crashes in ff_deblock_v_luma_8_sse2 ---------------------------------+--------------------------------------- Reporter: mi | Type: defect Status: new | Priority: normal Component: avcodec | Version: unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ---------------------------------+--------------------------------------- After the recent upgrade of ffmpeg, which Firefox uses to play videos here, I started getting crashes (SIGBUS) with a variety of video- containing pages. For example: {{{ % firefox 'https://www.facebook.com/spotlightuse.jp/videos/938866406181882/?theater' }}} From the gdb: {{{ Program received signal SIGBUS, Bus error. [Switching to Thread 3bd5fc80 (LWP 100719/firefox)] 0x39ba4722 in ff_deblock_v_luma_8_sse2 () from /opt/lib/libavcodec.so.56 (gdb) bt #0 0x39ba4722 in ff_deblock_v_luma_8_sse2 () from /opt/lib/libavcodec.so.56 #1 0x281c5258 in pthread_getspecific () from /lib/libthr.so.3 Previous frame inner to this frame (corrupt stack?) (gdb) disass $pc-32,$pc+32 Dump of assembler code for function ff_deblock_v_luma_8_sse2: 0x39ba4700 <ff_deblock_v_luma_8_sse2+0>: push %ebx 0x39ba4701 <ff_deblock_v_luma_8_sse2+1>: push %esi 0x39ba4702 <ff_deblock_v_luma_8_sse2+2>: sub $0x24,%esp 0x39ba4705 <ff_deblock_v_luma_8_sse2+5>: mov 0x30(%esp),%eax 0x39ba4709 <ff_deblock_v_luma_8_sse2+9>: mov 0x34(%esp),%ecx 0x39ba470d <ff_deblock_v_luma_8_sse2+13>: mov 0x38(%esp),%edx 0x39ba4711 <ff_deblock_v_luma_8_sse2+17>: mov 0x3c(%esp),%ebx 0x39ba4715 <ff_deblock_v_luma_8_sse2+21>: mov 0x40(%esp),%esi 0x39ba4719 <ff_deblock_v_luma_8_sse2+25>: lea (%ecx,%ecx,2),%esi 0x39ba471c <ff_deblock_v_luma_8_sse2+28>: dec %edx 0x39ba471d <ff_deblock_v_luma_8_sse2+29>: neg %esi 0x39ba471f <ff_deblock_v_luma_8_sse2+31>: dec %ebx 0x39ba4720 <ff_deblock_v_luma_8_sse2+32>: add %eax,%esi 0x39ba4722 <ff_deblock_v_luma_8_sse2+34>: movdqa (%esi,%ecx,1),%xmm0 0x39ba4727 <ff_deblock_v_luma_8_sse2+39>: movdqa (%esi,%ecx,2),%xmm1 0x39ba472c <ff_deblock_v_luma_8_sse2+44>: movdqa (%eax),%xmm2 0x39ba4730 <ff_deblock_v_luma_8_sse2+48>: movdqa (%eax,%ecx,1),%xmm3 0x39ba4735 <ff_deblock_v_luma_8_sse2+53>: movd %edx,%xmm4 0x39ba4739 <ff_deblock_v_luma_8_sse2+57>: movd %ebx,%xmm5 0x39ba473d <ff_deblock_v_luma_8_sse2+61>: pshuflw $0x0,%xmm4,%xmm4 0x39ba4742 <ff_deblock_v_luma_8_sse2+66>: punpcklqdq %xmm4,%xmm4 0x39ba4746 <ff_deblock_v_luma_8_sse2+70>: pshuflw $0x0,%xmm5,%xmm5 0x39ba474b <ff_deblock_v_luma_8_sse2+75>: punpcklqdq %xmm5,%xmm5 0x39ba474f <ff_deblock_v_luma_8_sse2+79>: packuswb %xmm4,%xmm4 0x39ba4753 <ff_deblock_v_luma_8_sse2+83>: packuswb %xmm5,%xmm5 0x39ba4757 <ff_deblock_v_luma_8_sse2+87>: movdqa %xmm2,%xmm6 0x39ba475b <ff_deblock_v_luma_8_sse2+91>: movdqa %xmm1,%xmm7 0x39ba475f <ff_deblock_v_luma_8_sse2+95>: psubusb %xmm1,%xmm6 0x39ba4763 <ff_deblock_v_luma_8_sse2+99>: psubusb %xmm2,%xmm7 0x39ba4767 <ff_deblock_v_luma_8_sse2+103>: por %xmm6,%xmm7 0x39ba476b <ff_deblock_v_luma_8_sse2+107>: psubusb %xmm4,%xmm7 0x39ba476f <ff_deblock_v_luma_8_sse2+111>: movdqa %xmm1,%xmm6 0x39ba4773 <ff_deblock_v_luma_8_sse2+115>: movdqa %xmm0,%xmm4 0x39ba4777 <ff_deblock_v_luma_8_sse2+119>: psubusb %xmm0,%xmm6 0x39ba477b <ff_deblock_v_luma_8_sse2+123>: psubusb %xmm1,%xmm4 0x39ba477f <ff_deblock_v_luma_8_sse2+127>: por %xmm6,%xmm4 0x39ba4783 <ff_deblock_v_luma_8_sse2+131>: psubusb %xmm5,%xmm4 0x39ba4787 <ff_deblock_v_luma_8_sse2+135>: por %xmm4,%xmm7 0x39ba478b <ff_deblock_v_luma_8_sse2+139>: movdqa %xmm2,%xmm6 0x39ba478f <ff_deblock_v_luma_8_sse2+143>: movdqa %xmm3,%xmm4 0x39ba4793 <ff_deblock_v_luma_8_sse2+147>: psubusb %xmm3,%xmm6 0x39ba4797 <ff_deblock_v_luma_8_sse2+151>: psubusb %xmm2,%xmm4 0x39ba479b <ff_deblock_v_luma_8_sse2+155>: por %xmm6,%xmm4 0x39ba479f <ff_deblock_v_luma_8_sse2+159>: psubusb %xmm5,%xmm4 0x39ba47a3 <ff_deblock_v_luma_8_sse2+163>: por %xmm4,%xmm7 0x39ba47a7 <ff_deblock_v_luma_8_sse2+167>: pxor %xmm6,%xmm6 0x39ba47ab <ff_deblock_v_luma_8_sse2+171>: pcmpeqb %xmm6,%xmm7 0x39ba47af <ff_deblock_v_luma_8_sse2+175>: mov 0x40(%esp),%ebx 0x39ba47b3 <ff_deblock_v_luma_8_sse2+179>: pcmpeqb %xmm3,%xmm3 0x39ba47b7 <ff_deblock_v_luma_8_sse2+183>: movd (%ebx),%xmm4 0x39ba47bb <ff_deblock_v_luma_8_sse2+187>: punpcklbw %xmm4,%xmm4 0x39ba47bf <ff_deblock_v_luma_8_sse2+191>: punpcklbw %xmm4,%xmm4 0x39ba47c3 <ff_deblock_v_luma_8_sse2+195>: movdqa %xmm4,0x10(%esp) 0x39ba47c9 <ff_deblock_v_luma_8_sse2+201>: pcmpgtb %xmm3,%xmm4 0x39ba47cd <ff_deblock_v_luma_8_sse2+205>: movdqa (%esi),%xmm3 0x39ba47d1 <ff_deblock_v_luma_8_sse2+209>: pand %xmm7,%xmm4 0x39ba47d5 <ff_deblock_v_luma_8_sse2+213>: movdqa %xmm4,(%esp) 0x39ba47da <ff_deblock_v_luma_8_sse2+218>: movdqa %xmm3,%xmm7 0x39ba47de <ff_deblock_v_luma_8_sse2+222>: movdqa %xmm1,%xmm6 0x39ba47e2 <ff_deblock_v_luma_8_sse2+226>: psubusb %xmm1,%xmm7 0x39ba47e6 <ff_deblock_v_luma_8_sse2+230>: psubusb %xmm3,%xmm6 0x39ba47ea <ff_deblock_v_luma_8_sse2+234>: psubusb %xmm5,%xmm7 0x39ba47ee <ff_deblock_v_luma_8_sse2+238>: psubusb %xmm5,%xmm6 0x39ba47f2 <ff_deblock_v_luma_8_sse2+242>: pcmpeqb %xmm7,%xmm6 0x39ba47f6 <ff_deblock_v_luma_8_sse2+246>: pand %xmm4,%xmm6 0x39ba47fa <ff_deblock_v_luma_8_sse2+250>: pand 0x10(%esp),%xmm4 0x39ba4800 <ff_deblock_v_luma_8_sse2+256>: movdqa %xmm4,%xmm7 0x39ba4804 <ff_deblock_v_luma_8_sse2+260>: psubb %xmm6,%xmm7 0x39ba4808 <ff_deblock_v_luma_8_sse2+264>: pand %xmm4,%xmm6 0x39ba480c <ff_deblock_v_luma_8_sse2+268>: movdqa %xmm1,%xmm4 0x39ba4810 <ff_deblock_v_luma_8_sse2+272>: pavgb %xmm2,%xmm4 0x39ba4814 <ff_deblock_v_luma_8_sse2+276>: pavgb %xmm4,%xmm3 0x39ba4818 <ff_deblock_v_luma_8_sse2+280>: pxor (%esi),%xmm4 0x39ba481c <ff_deblock_v_luma_8_sse2+284>: pand 0x39ebc2e0,%xmm4 0x39ba4824 <ff_deblock_v_luma_8_sse2+292>: psubusb %xmm4,%xmm3 0x39ba4828 <ff_deblock_v_luma_8_sse2+296>: movdqa %xmm0,%xmm4 0x39ba482c <ff_deblock_v_luma_8_sse2+300>: psubusb %xmm6,%xmm4 0x39ba4830 <ff_deblock_v_luma_8_sse2+304>: paddusb %xmm0,%xmm6 0x39ba4834 <ff_deblock_v_luma_8_sse2+308>: pmaxub %xmm4,%xmm3 0x39ba4838 <ff_deblock_v_luma_8_sse2+312>: pminub %xmm6,%xmm3 0x39ba483c <ff_deblock_v_luma_8_sse2+316>: movdqa %xmm3,(%esi,%ecx,1) 0x39ba4841 <ff_deblock_v_luma_8_sse2+321>: movdqa (%eax,%ecx,2),%xmm4 0x39ba4846 <ff_deblock_v_luma_8_sse2+326>: movdqa %xmm4,%xmm3 0x39ba484a <ff_deblock_v_luma_8_sse2+330>: movdqa %xmm2,%xmm6 0x39ba484e <ff_deblock_v_luma_8_sse2+334>: psubusb %xmm2,%xmm3 0x39ba4852 <ff_deblock_v_luma_8_sse2+338>: psubusb %xmm4,%xmm6 0x39ba4856 <ff_deblock_v_luma_8_sse2+342>: psubusb %xmm5,%xmm3 0x39ba485a <ff_deblock_v_luma_8_sse2+346>: psubusb %xmm5,%xmm6 0x39ba485e <ff_deblock_v_luma_8_sse2+350>: pcmpeqb %xmm3,%xmm6 0x39ba4862 <ff_deblock_v_luma_8_sse2+354>: pand (%esp),%xmm6 0x39ba4867 <ff_deblock_v_luma_8_sse2+359>: movdqa 0x10(%esp),%xmm5 0x39ba486d <ff_deblock_v_luma_8_sse2+365>: psubb %xmm6,%xmm7 0x39ba4871 <ff_deblock_v_luma_8_sse2+369>: pand %xmm6,%xmm5 0x39ba4875 <ff_deblock_v_luma_8_sse2+373>: movdqa (%eax,%ecx,1),%xmm3 0x39ba487a <ff_deblock_v_luma_8_sse2+378>: movdqa %xmm1,%xmm6 0x39ba487e <ff_deblock_v_luma_8_sse2+382>: pavgb %xmm2,%xmm6 0x39ba4882 <ff_deblock_v_luma_8_sse2+386>: pavgb %xmm6,%xmm4 0x39ba4886 <ff_deblock_v_luma_8_sse2+390>: pxor (%eax,%ecx,2),%xmm6 0x39ba488b <ff_deblock_v_luma_8_sse2+395>: pand 0x39ebc2e0,%xmm6 0x39ba4893 <ff_deblock_v_luma_8_sse2+403>: psubusb %xmm6,%xmm4 0x39ba4897 <ff_deblock_v_luma_8_sse2+407>: movdqa %xmm3,%xmm6 0x39ba489b <ff_deblock_v_luma_8_sse2+411>: psubusb %xmm5,%xmm6 0x39ba489f <ff_deblock_v_luma_8_sse2+415>: paddusb %xmm3,%xmm5 0x39ba48a3 <ff_deblock_v_luma_8_sse2+419>: pmaxub %xmm6,%xmm4 0x39ba48a7 <ff_deblock_v_luma_8_sse2+423>: pminub %xmm5,%xmm4 0x39ba48ab <ff_deblock_v_luma_8_sse2+427>: movdqa %xmm4,(%eax,%ecx,1) 0x39ba48b0 <ff_deblock_v_luma_8_sse2+432>: pcmpeqb %xmm4,%xmm4 0x39ba48b4 <ff_deblock_v_luma_8_sse2+436>: movdqa %xmm1,%xmm5 0x39ba48b8 <ff_deblock_v_luma_8_sse2+440>: pxor %xmm2,%xmm5 0x39ba48bc <ff_deblock_v_luma_8_sse2+444>: pxor %xmm4,%xmm3 0x39ba48c0 <ff_deblock_v_luma_8_sse2+448>: pand 0x39ebc2e0,%xmm5 0x39ba48c8 <ff_deblock_v_luma_8_sse2+456>: pavgb %xmm0,%xmm3 0x39ba48cc <ff_deblock_v_luma_8_sse2+460>: pxor %xmm1,%xmm4 0x39ba48d0 <ff_deblock_v_luma_8_sse2+464>: pavgb 0x39ebc320,%xmm3 0x39ba48d8 <ff_deblock_v_luma_8_sse2+472>: pavgb %xmm2,%xmm4 0x39ba48dc <ff_deblock_v_luma_8_sse2+476>: pavgb %xmm5,%xmm3 0x39ba48e0 <ff_deblock_v_luma_8_sse2+480>: movdqa 0x39ebcc20,%xmm6 0x39ba48e8 <ff_deblock_v_luma_8_sse2+488>: paddusb %xmm4,%xmm3 0x39ba48ec <ff_deblock_v_luma_8_sse2+492>: psubusb %xmm3,%xmm6 0x39ba48f0 <ff_deblock_v_luma_8_sse2+496>: psubusb 0x39ebcc20,%xmm3 0x39ba48f8 <ff_deblock_v_luma_8_sse2+504>: pminub %xmm7,%xmm6 0x39ba48fc <ff_deblock_v_luma_8_sse2+508>: pminub %xmm7,%xmm3 0x39ba4900 <ff_deblock_v_luma_8_sse2+512>: psubusb %xmm6,%xmm1 0x39ba4904 <ff_deblock_v_luma_8_sse2+516>: psubusb %xmm3,%xmm2 0x39ba4908 <ff_deblock_v_luma_8_sse2+520>: paddusb %xmm3,%xmm1 0x39ba490c <ff_deblock_v_luma_8_sse2+524>: paddusb %xmm6,%xmm2 0x39ba4910 <ff_deblock_v_luma_8_sse2+528>: movdqa %xmm1,(%esi,%ecx,2) 0x39ba4915 <ff_deblock_v_luma_8_sse2+533>: movdqa %xmm2,(%eax) 0x39ba4919 <ff_deblock_v_luma_8_sse2+537>: add $0x24,%esp 0x39ba491c <ff_deblock_v_luma_8_sse2+540>: pop %esi 0x39ba491d <ff_deblock_v_luma_8_sse2+541>: pop %ebx 0x39ba491e <ff_deblock_v_luma_8_sse2+542>: ret 0x39ba491f <ff_deblock_v_luma_8_sse2+543>: nop End of assembler dump. (gdb) info all-registers eax 0xb7f5cb8c -1208628340 ecx 0x10 16 edx 0x9 9 ebx 0x3 3 esp 0xb7f5cb0c 0xb7f5cb0c ebp 0x3bd98020 0x3bd98020 esi 0xb7f5cb5c -1208628388 edi 0x4b 75 eip 0x39ba4722 0x39ba4722 eflags 0x210287 2163335 cs 0x33 51 ss 0x3b 59 ds 0xbfbf003b -1078001605 es 0xbfbf003b -1078001605 fs 0xbfbf003b -1078001605 gs 0x1b 27 st0 -nan(0x282a2e32282a2e32) (raw 0xffff282a2e32282a2e32) st1 -nan(0x27292f3236373736) (raw 0xffff27292f3236373736) st2 -nan(0x27292f3227292f32) (raw 0xffff27292f3227292f32) st3 -nan(0x27292f3236373736) (raw 0xffff27292f3236373736) st4 -nan(0x27292f3227292f32) (raw 0xffff27292f3227292f32) st5 -nan(0x282a2e3235373735) (raw 0xffff282a2e3235373735) st6 -nan(0x282a2e3235373735) (raw 0xffff282a2e3235373735) st7 -nan(0x282a2e3235373735) (raw 0xffff282a2e3235373735) fctrl 0x127f 4735 fstat 0x0 0 ftag 0xaaaa 43690 fiseg 0x0 0 fioff 0x0 0 foseg 0x0 0 fooff 0x0 0 fop 0x0 0 xmm0 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x27, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28}, v8_int16 = {0x2727, 0x2727, 0x2727, 0x2727, 0x2828, 0x2828, 0x2828, 0x2828}, v4_int32 = {0x27272727, 0x27272727, 0x28282828, 0x28282828}, v2_int64 = {0x2727272727272727, 0x2828282828282828}, uint128 = 0x28282828282828282727272727272727} xmm1 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x28 <repeats 16 times>}, v8_int16 = {0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828}, v4_int32 = {0x28282828, 0x28282828, 0x28282828, 0x28282828}, v2_int64 = {0x2828282828282828, 0x2828282828282828}, uint128 = 0x28282828282828282828282828282828} xmm2 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x32 <repeats 16 times>}, v8_int16 = {0x3232, 0x3232, 0x3232, 0x3232, 0x3232, 0x3232, 0x3232, 0x3232}, v4_int32 = {0x32323232, 0x32323232, 0x32323232, 0x32323232}, v2_int64 = {0x3232323232323232, 0x3232323232323232}, uint128 = 0x32323232323232323232323232323232} xmm3 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x37 <repeats 16 times>}, v8_int16 = {0x3737, 0x3737, 0x3737, 0x3737, 0x3737, 0x3737, 0x3737, 0x3737}, v4_int32 = {0x37373737, 0x37373737, 0x37373737, 0x37373737}, v2_int64 = {0x3737373737373737, 0x3737373737373737}, uint128 = 0x37373737373737373737373737373737} xmm4 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x29 <repeats 16 times>}, v8_int16 = {0x2929, 0x2929, 0x2929, 0x2929, 0x2929, 0x2929, 0x2929, 0x2929}, v4_int32 = {0x29292929, 0x29292929, 0x29292929, 0x29292929}, v2_int64 = {0x2929292929292929, 0x2929292929292929}, uint128 = 0x29292929292929292929292929292929} xmm5 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x2b <repeats 16 times>}, v8_int16 = {0x2b2b, 0x2b2b, 0x2b2b, 0x2b2b, 0x2b2b, 0x2b2b, 0x2b2b, 0x2b2b}, v4_int32 = {0x2b2b2b2b, 0x2b2b2b2b, 0x2b2b2b2b, 0x2b2b2b2b}, v2_int64 = {0x2b2b2b2b2b2b2b2b, 0x2b2b2b2b2b2b2b2b}, uint128 = 0x2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b2b} xmm6 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000} xmm7 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x2a <repeats 16 times>}, v8_int16 = {0x2a2a, 0x2a2a, 0x2a2a, 0x2a2a, 0x2a2a, 0x2a2a, 0x2a2a, 0x2a2a}, v4_int32 = {0x2a2a2a2a, 0x2a2a2a2a, 0x2a2a2a2a, 0x2a2a2a2a}, v2_int64 = {0x2a2a2a2a2a2a2a2a, 0x2a2a2a2a2a2a2a2a}, uint128 = 0x2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a} mxcsr 0x1f80 8064 mm0 {uint64 = 0x282a2e32282a2e32, v2_int32 = {0x282a2e32, 0x282a2e32}, v4_int16 = {0x2e32, 0x282a, 0x2e32, 0x282a}, v8_int8 = {0x32, 0x2e, 0x2a, 0x28, 0x32, 0x2e, 0x2a, 0x28}} mm1 {uint64 = 0x27292f3236373736, v2_int32 = {0x36373736, 0x27292f32}, v4_int16 = {0x3736, 0x3637, 0x2f32, 0x2729}, v8_int8 = {0x36, 0x37, 0x37, 0x36, 0x32, 0x2f, 0x29, 0x27}} mm2 {uint64 = 0x27292f3227292f32, v2_int32 = {0x27292f32, 0x27292f32}, v4_int16 = {0x2f32, 0x2729, 0x2f32, 0x2729}, v8_int8 = {0x32, 0x2f, 0x29, 0x27, 0x32, 0x2f, 0x29, 0x27}} mm3 {uint64 = 0x27292f3236373736, v2_int32 = {0x36373736, 0x27292f32}, v4_int16 = {0x3736, 0x3637, 0x2f32, 0x2729}, v8_int8 = {0x36, 0x37, 0x37, 0x36, 0x32, 0x2f, 0x29, 0x27}} mm4 {uint64 = 0x27292f3227292f32, v2_int32 = {0x27292f32, 0x27292f32}, v4_int16 = {0x2f32, 0x2729, 0x2f32, 0x2729}, v8_int8 = {0x32, 0x2f, 0x29, 0x27, 0x32, 0x2f, 0x29, 0x27}} mm5 {uint64 = 0x282a2e3235373735, v2_int32 = {0x35373735, 0x282a2e32}, v4_int16 = {0x3735, 0x3537, 0x2e32, 0x282a}, v8_int8 = {0x35, 0x37, 0x37, 0x35, 0x32, 0x2e, 0x2a, 0x28}} mm6 {uint64 = 0x282a2e3235373735, v2_int32 = {0x35373735, 0x282a2e32}, v4_int16 = {0x3735, 0x3537, 0x2e32, 0x282a}, v8_int8 = {0x35, 0x37, 0x37, 0x35, 0x32, 0x2e, 0x2a, 0x28}} mm7 {uint64 = 0x282a2e3235373735, v2_int32 = {0x35373735, 0x282a2e32}, v4_int16 = {0x3735, 0x3537, 0x2e32, 0x282a}, v8_int8 = {0x35, 0x37, 0x37, 0x35, 0x32, 0x2e, 0x2a, 0x28}} }}} This is on a FreeBSD-10.2/amd64 machine with the CPUs having the following features: {{{ CPU: Pentium(R) Dual-Core CPU E6700 @ 3.20GHz (3200.06-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0x1067a Family = 0x6 Model = 0x17 Stepping = 10 Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Features2=0x400e3bd<SSE3,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,XSAVE> AMD Features=0x20100000<NX,LM> AMD Features2=0x1<LAHF> TSC: P-state invariant, performance statistics }}} ffmpeg identifies itself thus (version 2.8.6 is not listed as an option under "Version" in trac): {{{ ffmpeg -version ffmpeg version 2.8.6 Copyright (c) 2000-2016 the FFmpeg developers built with FreeBSD clang version 3.4.1 (tags/RELEASE_34/dot1-final 208032) 20140512 configuration: --prefix=/opt --mandir=/opt/man --datadir=/opt/share/ffmpeg --pkgconfigdir=/opt/libdata/pkgconfig --enable-shared --enable-gpl --enable-postproc --enable-avfilter --enable-avresample --enable-pthreads --disable-libstagefright-h264 --disable-libutvideo --disable-libsoxr --cc=cc --extra-cflags='-msse -I/opt/include/vorbis -I/opt/include' --extra-ldflags='-L/opt/lib ' --extra-libs=-lpthread --enable-memalign- hack --enable-libaacplus --enable-libopencore-amrnb --enable-libopencore- amrwb --enable-libass --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcelt --disable-libdc1394 --disable-debug --disable-htmlpages --enable-libfaac --enable-libfdk-aac --disable-ffserver --enable-libflite --enable-fontconfig --enable-libfreetype --enable-frei0r --disable- libfribidi --enable-libgme --enable-libgsm --enable-iconv --enable-libilbc --disable-indev=jack --disable-ladspa --enable-libmp3lame --enable- libbluray --enable-mmx --disable-libmodplug --enable-openal --enable- opencl --enable-libopencv --enable-opengl --enable-libopenh264 --enable- libopenjpeg --enable-libopus --disable-libpulse --disable-indev=pulse --disable-outdev=pulse --disable-libquvi --enable-runtime-cpudetect --enable-librtmp --enable-libschroedinger --enable-ffplay --enable- libsmbclient --enable-libsnappy --enable-libspeex --enable-sse --enable- libssh --enable-libtheora --enable-libtwolame --disable-libv4l2 --disable- indev=v4l2 --disable-outdev=v4l2 --enable-vaapi --disable-vdpau --enable- libvidstab --enable-libvorbis --enable-libvo-aacenc --enable-libvo- amrwbenc --enable-libvpx --enable-libwavpack --enable-libwebp --enable- x11grab --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxvid --enable-libzmq --disable-libzvbi --disable-gnutls --enable-openssl --enable-version3 --enable-nonfree libavutil 54. 31.100 / 54. 31.100 libavcodec 56. 60.100 / 56. 60.100 libavformat 56. 40.101 / 56. 40.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 40.101 / 5. 40.101 libavresample 2. 1. 0 / 2. 1. 0 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.101 / 1. 2.101 libpostproc 53. 3.100 / 53. 3.100 }}} A very similarly configured box with Opteron CPUs does not exhibit this problem. -- Ticket URL: <https://trac.ffmpeg.org/ticket/5231> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 32

#4727(ffmpeg:new): Undefined behaviors in ffmpeg
by FFmpeg 28 Aug '21

28 Aug '21

#4727: Undefined behaviors in ffmpeg ------------------------------------+-------------------------------------- Reporter: xiedingbao | Type: defect Status: new | Priority: normal Component: ffmpeg | Version: git-master Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | ------------------------------------+-------------------------------------- Summary of the bug: found some undefined behaviors in ffmpeg How to reproduce: {{{ % ffmpeg -i input -y test.avi[] ffmpeg version git master built on clang-3.4 with flag -fsanitize=undefined }}} You can download the malformed inputs from [https://www.dropbox.com/s/yfflpbb07jz3eh0/inputs.tar.gz?dl=0] {{{ libavcodec/mpegvideo_enc.c:142:21: runtime error: left shift of negative value -64 libavcodec/h264.c:259:17: runtime error: load of misaligned address 0x000008ec0929 for type 'const uint64_t' (aka 'const unsigned long'), which requires 8 byte alignment libavcodec/h264.c:258:17: runtime error: member access within misaligned address 0x000008ec0929 for type 'const av_alias64', which requires 8 byte alignment libavcodec/h264_slice.c:533:54: runtime error: index -2011593 out of bounds for type 'uint32_t [88][16]' libavcodec/h264_slice.c:537:54: runtime error: index -503031 out of bounds for type 'uint32_t [88][64]' libavcodec/golomb.h:75:13: runtime error: shift exponent -1 is negative libavcodec/h264_slice.c:2017:61: runtime error: index -1 out of bounds for type 'int [64]' libavcodec/h264_slice.c:2018:38: runtime error: index -1 out of bounds for type 'int [64]' libavcodec/h264_slice.c:1989:38: runtime error: index -1 out of bounds for type 'int [64]' libavcodec/cabac_functions.h:70:13: runtime error: left shift of negative value -921043036 /slibavformat/dump.c:423:37: runtime error: signed integer overflow: 48 * 2139225729 cannot be represented in type 'int' libavformat/dump.c:424:37: runtime error: signed integer overflow: 144 * 16712191 cannot be represented in type 'int' ^ libavcodec/h264_cavlc.c:586:54: runtime error: index -1 out of bounds for type 'VLC [15]' libavcodec/h264_cavlc.c:627:9: runtime error: index -1 out of bounds for type 'VLC [6]' libavcodec/h264_cavlc.c:580:69: runtime error: index -1 out of bounds for type 'VLC [3]' libavcodec/cabac_functions.h:70:13: runtime error: left shift of negative value -1842012160 ./libavutil/rational.h:81:18: runtime error: division by zero ./libavutil/rational.h:81:18: runtime error: division by zero libavformat/mov.c:2442:25: runtime error: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself libavformat/mov.c:2482:13: runtime error: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself libavcodec/ac3enc.c:1186:14: runtime error: left shift of negative value -9 libavcodec/h264_slice.c:537:54: runtime error: index -489998 out of bounds for type 'uint32_t [88][64]' libavcodec/h264_cavlc.c:627:9: runtime error: index -1 out of bounds for type 'VLC [6]' }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/4727> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 16

#3389(ffmpeg:new): Feature Request - Isolate and normalize video content
by FFmpeg 28 Aug '21

28 Aug '21

#3389: Feature Request - Isolate and normalize video content -------------------------------------+------------------------------------- Reporter: Rafajafar | Type: Status: new | enhancement Component: ffmpeg | Priority: wish Keywords: feature | Version: request normalize video | unspecified Blocking: | Blocked By: Analyzed by developer: 0 | Reproduced by developer: 0 -------------------------------------+------------------------------------- Hey, I have an interesting problem and I'm solving it with OpenCV. It's be great if the solution could come straight from ffmpeg, though! I need to: 1) cropdetect 2) crop surrounding borders from a video 3) resize video to normalize its dimensions In other words, all I want is one command that will detect the frame-by- frame borders and in the same step, crop it, and also resize it. And I want this done for the entire video, not a single frame. It's gotta be possible, right? The applications are very useful in video analysis. I've spoken to colleagues of mine and they are doing this manually themselves. It would be great to be able to work this feature into the automation surrounding ffmpeg in our tools. My personal application, for instance, is in detecting videos that are similar using content perceptual hashing. Another colleague of mine works for the Center for Missing and Exploited Children. He does similar work, but with pHashing. I can see applications for ContentID type systems across the board. I'm sure this is a low on the totem pole request, but if you have any spare cycles, this would really rock in the world of computer vision and video analysis! Thanks for your consideration, --Collin -- Ticket URL: <https://trac.ffmpeg.org/ticket/3389> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 4

#5112(undetermined:new): Application provided invalid, non monotonically increasing dts to muxer in stream 1
by FFmpeg 25 Jul '21

25 Jul '21

#5112: Application provided invalid, non monotonically increasing dts to muxer in stream 1 -------------------------------------+------------------------------------- Reporter: xamarin | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: How to reproduce: {{{ % ffmpeg.exe -v error -i .\Serramoura-Homicidio05102014-rmtp.mp4 -f null - >>error.log 2>&1 ffmpeg version ffmpeg-20151231-git-4160900-win64-static.7z }}} Patches should be submitted to the ffmpeg-devel mailing list and not this bug tracker. -- Ticket URL: <https://trac.ffmpeg.org/ticket/5112> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 9

#4499(undetermined:new): Parse internal subtitles in realtime
by FFmpeg 16 Jun '21

16 Jun '21

#4499: Parse internal subtitles in realtime -------------------------------------+------------------------------------- Reporter: SubJunk | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: When using FFmpeg to overlay internal non-SSA subtitles (like SRT) there is a wait time before transcoding while FFmpeg parses all of the subtitles into SSA format, before the video starts transcoding. In some cases (10+GB MKVs) it can take minutes for the initial extraction to complete. We have had reports of 3+ minutes. It would be great if it was done as it goes along instead, so that extraction/conversion process is spread out. How to reproduce: {{{ % ffmpeg -i input.mkv -filter_complex subtitles=input.mkv -c:a ac3 -c:v libx264 -f mpegts file.ts ffmpeg version N-69972-g6c91afe Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.9.2 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable- libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable- libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable- libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable- libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib libavutil 54. 19.100 / 54. 19.100 libavcodec 56. 25.100 / 56. 25.100 libavformat 56. 23.100 / 56. 23.100 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 11.100 / 5. 11.100 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/4499> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

1 13

#5308(avcodec:new): dvbsubtitles always uses page_id of 1
by FFmpeg 06 Jun '21

06 Jun '21

#5308: dvbsubtitles always uses page_id of 1 -------------------------------------+------------------------------------- Reporter: joolzg | Type: defect Status: new | Priority: critical Component: avcodec | Version: git- Keywords: dvbsubs | master mpegts | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- I have a stream which uses composition_page_id of 2 and Ancillary_page_id of 2 but in dvbsub.c:258 we have the following page_id = 1; This value should be updated from the mpegtsenc.c when it creates the PMT so the values follow through the chain. -- Ticket URL: <https://trac.ffmpeg.org/ticket/5308> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker

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