#8586: mpegts seeking failure -------------------------------------+------------------------------------- Reporter: ronag | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- We have noticed that some mpegts files FFmpeg fails to properly seek. Even though the file itself when read sequentially (without seeking) seems to work fine. {{{ Desktop$ ffmpeg -ss 16.919999837875366 -i N4SGWtf5_~9R23.ts -frames:v 1 foo.webp -y ffmpeg version N-97026-gea46b45e9c-tessus https://evermeet.cx/ffmpeg/ Copyright (c) 2000-2020 the FFmpeg developers built with Apple clang version 11.0.0 (clang-1100.0.33.17) configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra- version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libgsm --enable-libmodplug --enable- libmp3lame --enable-libmysofa --enable-libopencore-amrnb --enable- libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable- libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable- libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable- libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable- libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config- flags=--static --disable-ffplay libavutil 56. 42.101 / 56. 42.101 libavcodec 58. 76.100 / 58. 76.100 libavformat 58. 42.100 / 58. 42.100 libavdevice 58. 9.103 / 58. 9.103 libavfilter 7. 77.100 / 7. 77.100 libswscale 5. 6.101 / 5. 6.101 libswresample 3. 6.100 / 3. 6.100 libpostproc 55. 6.100 / 55. 6.100 [aac @ 0x7f89e5017800] Assuming an incorrectly encoded 7.1 channel layout instead of a spec-compliant 7.1(wide) layout, use -strict 1 to decode according to the specification instead. Input #0, mpegts, from 'N4SGWtf5_~9R23.ts': Duration: 00:00:20.01, start: 64000.040000, bitrate: 5810 kb/s Program 1 Metadata: service_name : Service01 service_provider: FFmpeg Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1280x720, 50 fps, 50 tbr, 90k tbn, 100 tbc Stream #0:1[0x101]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, 7.1, fltp, 310 kb/s Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> webp (libwebp)) Press [q] to stop, [?] for help [h264 @ 0x7f89e6805600] reference picture missing during reorder Last message repeated 3 times [h264 @ 0x7f89e6805600] Missing reference picture, default is 0 [h264 @ 0x7f89e6805600] decode_slice_header error [h264 @ 0x7f89e6805600] reference picture missing during reorder Last message repeated 3 times [h264 @ 0x7f89e6805600] Missing reference picture, default is 0 [h264 @ 0x7f89e6805600] decode_slice_header error [h264 @ 0x7f89e6805600] reference picture missing during reorder Last message repeated 3 times [h264 @ 0x7f89e6805600] Missing reference picture, default is 0 [h264 @ 0x7f89e6805600] decode_slice_header error [h264 @ 0x7f89e6805600] reference picture missing during reorder Last message repeated 3 times [h264 @ 0x7f89e6805600] Missing reference picture, default is 0 [h264 @ 0x7f89e6805600] decode_slice_header error [h264 @ 0x7f89e6805600] reference picture missing during reorder Last message repeated 3 times [h264 @ 0x7f89e6805600] Missing reference picture, default is 0 [h264 @ 0x7f89e6805600] decode_slice_header error [h264 @ 0x7f89e6805600] reference picture missing during reorder Last message repeated 3 times [h264 @ 0x7f89e6805600] Missing reference picture, default is 0 [h264 @ 0x7f89e6805600] decode_slice_header error [h264 @ 0x7f89e6805600] reference picture missing during reorder Last message repeated 3 times [h264 @ 0x7f89e6805600] Missing reference picture, default is 0 [h264 @ 0x7f89e6805600] decode_slice_header error [h264 @ 0x7f89e6805600] reference picture missing during reorder Last message repeated 3 times [h264 @ 0x7f89e6805600] Missing reference picture, default is 0 [h264 @ 0x7f89e6805600] decode_slice_header error [h264 @ 0x7f89e6805600] reference picture missing during reorder Last message repeated 3 times [h264 @ 0x7f89e6805600] Missing reference picture, default is 0 [h264 @ 0x7f89e6805600] decode_slice_header error [h264 @ 0x7f89e6805600] reference picture missing during reorder Last message repeated 3 times [h264 @ 0x7f89e6805600] Missing reference picture, default is 0 [h264 @ 0x7f89e6805600] decode_slice_header error [h264 @ 0x7f89e6805600] reference picture missing during reorder Last message repeated 3 times [h264 @ 0x7f89e6805600] Missing reference picture, default is 0 [h264 @ 0x7f89e6805600] decode_slice_header error [h264 @ 0x7f89e6805c00] reference picture missing during reorder Last message repeated 1 times [h264 @ 0x7f89e6805c00] Missing reference picture, default is 0 Last message repeated 1 times [h264 @ 0x7f89e6805c00] reference picture missing during reorder Last message repeated 1 times [h264 @ 0x7f89e6805c00] Missing reference picture, default is 0 Last message repeated 1 times [h264 @ 0x7f89e6805c00] reference picture missing during reorder Last message repeated 1 times [h264 @ 0x7f89e6805c00] Missing reference picture, default is 0 Last message repeated 1 times [h264 @ 0x7f89e6805c00] reference picture missing during reorder Last message repeated 1 times [h264 @ 0x7f89e6805c00] Missing reference picture, default is 0 Last message repeated 1 times [h264 @ 0x7f89e6805c00] reference picture missing during reorder Last message repeated 1 times [h264 @ 0x7f89e6805c00] Missing reference picture, default is 0 Last message repeated 1 times [h264 @ 0x7f89e6805c00] reference picture missing during reorder Last message repeated 1 times [h264 @ 0x7f89e6805c00] Missing reference picture, default is 0 Last message repeated 1 times [h264 @ 0x7f89e6806200] reference picture missing during reorder [h264 @ 0x7f89e6806200] Missing reference picture, default is 2 [h264 @ 0x7f89e6806200] reference picture missing during reorder [h264 @ 0x7f89e6806200] Missing reference picture, default is 2 [h264 @ 0x7f89e6806200] reference picture missing during reorder [h264 @ 0x7f89e6806200] Missing reference picture, default is 2 [h264 @ 0x7f89e6805c00] reference picture missing during reorder Last message repeated 1 times [h264 @ 0x7f89e6805c00] Missing reference picture, default is 0 Last message repeated 1 times [h264 @ 0x7f89e6806200] reference picture missing during reorder [h264 @ 0x7f89e6806200] Missing reference picture, default is 2 [h264 @ 0x7f89e6805c00] reference picture missing during reorder Last message repeated 1 times [h264 @ 0x7f89e6805c00] Missing reference picture, default is 0 Last message repeated 1 times [h264 @ 0x7f89e6806200] reference picture missing during reorder [h264 @ 0x7f89e6806200] Missing reference picture, default is 2 [h264 @ 0x7f89e6806200] reference picture missing during reorder [h264 @ 0x7f89e6806200] Missing reference picture, default is 2 [h264 @ 0x7f89e6805c00] reference picture missing during reorder Last message repeated 1 times [h264 @ 0x7f89e6805c00] Missing reference picture, default is 0 Last message repeated 1 times [h264 @ 0x7f89e6805c00] reference picture missing during reorder Last message repeated 1 times [h264 @ 0x7f89e6805c00] Missing reference picture, default is 0 Last message repeated 1 times [h264 @ 0x7f89e6806200] reference picture missing during reorder [h264 @ 0x7f89e6806200] Missing reference picture, default is 2 [h264 @ 0x7f89e6805c00] reference picture missing during reorder Last message repeated 1 times [h264 @ 0x7f89e6805c00] Missing reference picture, default is 0 Last message repeated 1 times [h264 @ 0x7f89e6806200] reference picture missing during reorder [h264 @ 0x7f89e6806200] Missing reference picture, default is 2 [h264 @ 0x7f89e6806200] reference picture missing during reorder [h264 @ 0x7f89e6806200] Missing reference picture, default is 2 [h264 @ 0x7f89e6806200] reference picture missing during reorder [h264 @ 0x7f89e6806200] Missing reference picture, default is 2 [h264 @ 0x7f89e6806200] reference picture missing during reorder [h264 @ 0x7f89e6806200] Missing reference picture, default is 2 Output #0, webp, to 'foo.webp': Metadata: encoder : Lavf58.42.100 Stream #0:0: Video: webp (libwebp), yuv420p, 1280x720, q=2-31, 200 kb/s, 50 fps, 1k tbn, 50 tbc Metadata: encoder : Lavc58.76.100 libwebp frame= 0 fps=0.0 q=0.0 Lsize= 0kB time=00:00:00.00 bitrate=N/A speed= 0x video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used) }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/8586> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker