I need to take a screenshot/snapshot from .ts files. Currently using the command:
ffmpeg -ss 00:06:05.6710000 -i input.ts -frames:v 1 -q:v 1 output.jpeg
This works fine for .mp4 files, but for .ts files the output file is just garbage. I've tried different values for -frames:v 1 and -q:v 1, but same result. Note, ffmpeg will convert .ts to mp4, so I'm guessing it's a question of correct parameters, however all my searches have been fruitless. Command output is:
ffmpeg version 7.0.1-full_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developersbuilt with gcc 13.2.0 (Rev5, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libxevd --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxeve --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
libavutil 59. 8.100 / 59. 8.100
libavcodec 61. 3.100 / 61. 3.100
libavformat 61. 1.100 / 61. 1.100
libavdevice 61. 1.100 / 61. 1.100
libavfilter 10. 1.100 / 10. 1.100
libswscale 8. 1.100 / 8. 1.100
libswresample 5. 1.100 / 5. 1.100
libpostproc 58. 1.100 / 58. 1.100
[mpegts @ 0000020349fd7a00] Could not find codec parameters for stream 1 (Unknown: none ([164][0][0][0] / 0x00A4)): unknown codec
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, mpegts, from 'input.ts':
Duration: 00:12:02.03, start: 8961.200000, bitrate: 1560 kb/s
Program 1
Stream #0:0[0xa5]: Video: hevc (Main) ([36][0][0][0] / 0x0024), yuv420p(tv), 2688x1520, 30 fps, 30 tbr, 90k tbn
Stream #0:1[0xa4]: Unknown: none ([164][0][0][0] / 0x00A4)
Stream mapping:
Stream #0:0 -> #0:0 (hevc (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[hevc @ 000002034a5d0540] Could not find ref with POC 49
[swscaler @ 00000203512ce040] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to 'output.jpeg':
Metadata:
encoder : Lavf61.1.100Stream #0:0: Video: mjpeg, yuvj420p(pc, progressive), 2688x1520, q=2-31, 200 kb/s, 30 fps, 30 tbn
Metadata: encoder : Lavc61.3.100 mjpeg Side data: cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A[image2 @ 000002034a5ce5c0] The specified filename 'output.jpeg' does not contain an image sequence pattern or a pattern is invalid.
[image2 @ 000002034a5ce5c0] Use a pattern such as %03d for an image sequence or use the -update option (with -frames:v 1 if needed) to write a single image.
[out#0/image2 @ 000002034a4d3140] video:73KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: unknown
frame= 1 fps=0.0 q=1.0 Lsize=N/A time=00:00:00.03 bitrate=N/A dup=1 drop=0 speed=0.317x
How can I create the snapshot?
.tsfiles. Place the-ssafter the-i(also add-update 1):ffmpeg -y -i input.ts -ss 00:06:05.6710000 -frames:v 1 -update 1 -q:v 1 output.jpeg. Note that converting to MP4 with-c copy(ffmpeg -y -i input.ts -c copy input.mp4) and using-ssbefore the-ican be faster if-ssvalue is large.