There is a very good chance that I am going down a pointless path on this, so I apologize if this is a waste of time. I have been trying to write uncompressed video to an FLV file, and I am not sure whether it is possible.
According to Wikipedia, a valid video encoding option is 0, which indicates an "RGB" video encoding: https://en.wikipedia.org/wiki/Flash_Video#Packets. However, I don't see any mention of this Codec ID option in Adobe's documentation; neither "Video File Format Specification Version 10" nor "Adobe Flash Video File Format Specification Version 10.1".
I proceeded under the assumption that a 0/RGB Codec ID is allowed. I hard-coded an array of unsigned char in C and used fwrite to write the following Double/Number metadata to a new, binary FLV file (which admittedly, I am assuming I wrote correctly):
I then added 4 VIDEODATA tags, 1 for each RGB frame I was hoping to write. Their timestamps are 0, 1000, 2000, and 3000 (milliseconds). All four of them have a 769-byte payload: the first byte to specify it is a keyframe with a Codec ID of 0, and the remaining 768 are to represent a 16x16x3 (RGB) image. I wrote 255/0xFF for all values in hopes of seeing a small, white screen appear for 4 seconds.
When that did not play correctly in VLC Media Player, as I feared, I tried using RGBA colors for each frame. I also changed the videodatarate and filesize metadata to Number values 8 (Kbps) and 4347 (bytes) respectively.
Unfortunately, this did not play in VLC Media Player either. I was wondering if anyone knew for certain whether uncompressed video in an FLV file is possible? If so, I was curious what format the video data should be in (RGB, RGBA, multiple VIDEODATA tags, just one VIDEODATA tag, etc.)?
My C code is mostly one, giant array of unsigned char, but if anyone would like to see it, I can try adding it. Any advice is greatly appreciated.
Thank you,
Mitchell A
As per SirDarius, "the video encoding types listed in the Wikipedia page do not come from an official source. I would not recommend relying on those." This makes sense given that the FLV Format documentation from Adobe itself makes no mention of an uncompressed, RGB option for video encoding.
I was holding out hope that Wikipedia editors and other people knew of some undocumented easter egg in the FLV format, but I'm now convinced that's not the case.