I have a video stream (from a DJI Drone) coming to a websocket server.The websocket server saves the data using the technique described in this answer.
Technical Details
The frame is :
- From a H265 video generated by the drone
- has size: height 1080 , width 1440
- FPS : 30
- Size: 45235
This is the raw video data as we receive from the getData() function of the video frame returned by the addStreamDataListener method
Goal
I want that the saved frame (I have noted the peculiar size) to be converted to ffpmeg.
Attempt(s) to solve
I have tried:
ffmpeg -f rawvideo -s 720x480 -i images/fileName1715180324575.dat output.jpg
as well as
ffmpeg -f rawvideo -pix_fmt rgb24 -s 1080x1440 -i images/fileName1715180324575.dat output.jpg
and various other combinations
Error
I get:
ffmpeg version n6.1.1 Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 13.2.1 (GCC) 20230801
configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-frei0r --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libdav1d --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libharfbuzz --enable-libiec61883 --enable-libjack --enable-libjxl --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libplacebo --enable-libpulse --enable-librav1e --enable-librsvg --enable-librubberband --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpl --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-nvdec --enable-nvenc --enable-opencl --enable-opengl --enable-shared --enable-vapoursynth --enable-version3 --enable-vulkan
libavutil 58. 29.100 / 58. 29.100
libavcodec 60. 31.102 / 60. 31.102
libavformat 60. 16.100 / 60. 16.100
libavdevice 60. 3.100 / 60. 3.100
libavfilter 9. 12.100 / 9. 12.100
libswscale 7. 5.100 / 7. 5.100
libswresample 4. 12.100 / 4. 12.100
libpostproc 57. 3.100 / 57. 3.100
[rawvideo @ 0x5d0fc4e5f600] Packet corrupt (stream = 0, dts = 0).
[rawvideo @ 0x5d0fc4e5f600] Estimating duration from bitrate, this may be inaccurate
Input #0, rawvideo, from 'images/fileName1715180324575.dat':
Duration: N/A, start: 0.000000, bitrate: 933120 kb/s
Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 1080x1440, 933120 kb/s, 25 tbr, 25 tbn
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[in#0/rawvideo @ 0x5d0fc4e5f500] corrupt input packet in stream 0
[rawvideo @ 0x5d0fc4e697c0] Invalid buffer size, packet size 45235 < expected frame_size 4665600
[vist#0:0/rawvideo @ 0x5d0fc4e69640] Error submitting packet to decoder: Invalid argument
[swscaler @ 0x5d0fc4e86580] deprecated pixel format used, make sure you did set range correctly
[vost#0:0/mjpeg @ 0x5d0fc4e6c6c0] No filtered frames for output stream, trying to initialize anyway.
Output #0, image2, to 'output.jpg':
Metadata:
encoder : Lavf60.16.100
Stream #0:0: Video: mjpeg, yuvj444p(pc, progressive), 1080x1440, q=2-31, 200 kb/s, 25 fps, 25 tbn
Metadata:
encoder : Lavc60.31.102 mjpeg
Side data:
cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
[vist#0:0/rawvideo @ 0x5d0fc4e69640] Decode error rate 1 exceeds maximum 0.666667
[out#0/image2 @ 0x5d0fc4e69380] video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[out#0/image2 @ 0x5d0fc4e69380] Output file is empty, nothing was encoded(check -ss / -t / -frames parameters if used)
frame= 0 fps=0.0 q=0.0 Lsize=N/A time=N/A bitrate=N/A speed=N/A
Conversion failed!
or
ffmpeg version n6.1.1 Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 13.2.1 (GCC) 20230801
configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-frei0r --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libdav1d --enable-libdrm --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libharfbuzz --enable-libiec61883 --enable-libjack --enable-libjxl --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libplacebo --enable-libpulse --enable-librav1e --enable-librsvg --enable-librubberband --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpl --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-nvdec --enable-nvenc --enable-opencl --enable-opengl --enable-shared --enable-vapoursynth --enable-version3 --enable-vulkan
libavutil 58. 29.100 / 58. 29.100
libavcodec 60. 31.102 / 60. 31.102
libavformat 60. 16.100 / 60. 16.100
libavdevice 60. 3.100 / 60. 3.100
libavfilter 9. 12.100 / 9. 12.100
libswscale 7. 5.100 / 7. 5.100
libswresample 4. 12.100 / 4. 12.100
libpostproc 57. 3.100 / 57. 3.100
[rawvideo @ 0x5a4c0b8685c0] Packet corrupt (stream = 0, dts = 0).
[rawvideo @ 0x5a4c0b8685c0] Estimating duration from bitrate, this may be inaccurate
Input #0, rawvideo, from 'images/fileName1715180324575.dat':
Duration: N/A, start: 0.000000, bitrate: 103680 kb/s
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 720x480, 103680 kb/s, 25 tbr, 25 tbn
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[in#0/rawvideo @ 0x5a4c0b8684c0] corrupt input packet in stream 0
[rawvideo @ 0x5a4c0b872700] Invalid buffer size, packet size 45235 < expected frame_size 518400
[vist#0:0/rawvideo @ 0x5a4c0b872580] Error submitting packet to decoder: Invalid argument
[swscaler @ 0x5a4c0b88f480] deprecated pixel format used, make sure you did set range correctly
[vost#0:0/mjpeg @ 0x5a4c0b875600] No filtered frames for output stream, trying to initialize anyway.
Output #0, image2, to 'output.jpg':
Metadata:
encoder : Lavf60.16.100
Stream #0:0: Video: mjpeg, yuvj420p(pc, progressive), 720x480, q=2-31, 200 kb/s, 25 fps, 25 tbn
Metadata:
encoder : Lavc60.31.102 mjpeg
Side data:
cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
[vist#0:0/rawvideo @ 0x5a4c0b872580] Decode error rate 1 exceeds maximum 0.666667
[out#0/image2 @ 0x5a4c0b8722c0] video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[out#0/image2 @ 0x5a4c0b8722c0] Output file is empty, nothing was encoded(check -ss / -t / -frames parameters if used)
frame= 0 fps=0.0 q=0.0 Lsize=N/A time=N/A bitrate=N/A speed=N/A
Conversion failed!
or similar errors.
Question
How can I extract the image from a video frame using ffmpeg? Thank you
A sample of the image file may be found here: github