On 6/30/19, Anton Novikov <random.pl...@gmail.com> wrote: > Hi everyone, > I'm reversing the recent version of r3d file format, and have encountered a > JPEG2000-related thing. > I've got a memory dump of something that seems to be JPEG2000, and modified > ffmpeg to consume it. The log follows: > [r3d @ 0x558d304077c0] test > [r3d @ 0x558d304077c0] error reading end atom > Input #0, r3d, from '/home/anek/src/red/frame2.without0.r3d': > Duration: N/A, bitrate: N/A > Stream #0:0: Video: jpeg2000, bayer_rggb16le, 8192x4320, 24 fps, 24 > tbr, 134286336 tbn, 134286336 tbc > Metadata: > filename : ? > File 'frame.jpg' already exists. Overwrite ? [y/N] y > Stream mapping: > Stream #0:0 -> #0:0 (jpeg2000 (native) -> mjpeg (native)) > Press [q] to stop, [?] for help > Truncating packet of size 9496960 to 7595371 > /home/anek/src/red/frame2.without0.r3d: corrupt input packet in stream 0 > /home/anek/src/red/frame2.without0.r3d: Operation not permitted > [jpeg2000 @ 0x558d3041c280] SIZ > [jpeg2000 @ 0x558d3041c280] SIZ Rsiz=0x8040 2056 2168 > [jpeg2000 @ 0x558d3041c280] POC > [jpeg2000 @ 0x558d3041c280] unsupported marker 0xFF79 at pos 0x70 > [jpeg2000 @ 0x558d3041c280] COD > [jpeg2000 @ 0x558d3041c280] extra cblk styles E > [jpeg2000 @ 0x558d3041c280] QCD > [jpeg2000 @ 0x558d3041c280] SOT > Last message repeated 3 times > [jpeg2000 @ 0x558d3041c280] Duplicate SOC at 3821997=0x3A51AD > [jpeg2000 @ 0x558d3041c280] SIZ > [jpeg2000 @ 0x558d3041c280] SIZ Rsiz=0x8040 2056 2168 > [jpeg2000 @ 0x558d3041c280] POC > [jpeg2000 @ 0x558d3041c280] unsupported marker 0xFF79 at pos 0x3A5203 > [jpeg2000 @ 0x558d3041c280] COD > [jpeg2000 @ 0x558d3041c280] extra cblk styles E > [jpeg2000 @ 0x558d3041c280] QCD > [jpeg2000 @ 0x558d3041c280] SOT > Last message repeated 3 times > [jpeg2000 @ 0x558d3041c280] Progression order RPCL > Last message repeated 3 times > [swscaler @ 0x558d30425900] deprecated pixel format used, make sure you did > set range correctly > [mjpeg @ 0x558d3040e780] removing common factors from framerate > Output #0, image2, to 'frame.jpg': > Metadata: > encoder : Lavf58.27.103 > Stream #0:0: Video: mjpeg, yuvj444p(pc), 2056x2168, q=2-31, 200 kb/s, > 24 fps, 24 tbn, 24 tbc > Metadata: > filename : ? > encoder : Lavc58.52.102 mjpeg > Side data: > cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1 > [image2 @ 0x558d3040abc0] Application provided invalid, non monotonically > increasing dts to muxer in stream 0: 101000 >= 0 > /home/anek/src/red/frame2.without0.r3d: Operation not permitted > frame= 1 fps=0.4 q=2.9 Lsize=N/A time=00:00:00.00 bitrate=N/A speed= > 0x > video:96kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB > muxing overhead: unknown > > picture dimensions are 8192x4320, but in JPEG2000 bytestream there are 2 > SOC and SIZ markers with SIZ mentioning 2056x2168. The image is decoded, > but colors and area are wrong. What can I do?
Make sure it uses tiles (each jpeg2000 is special tile) and that your packet is trimmed. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
