[FFmpeg-user] grayscale video streaming in ffmpeg
elliott2w1 at gmail.com
Wed Sep 12 18:43:24 CEST 2012
Ok, I get what you're saying. I don't have to use .swf. I can use
any type of video output. How do you take advantaget of the -pix_fmt
flag in ffmpeg in order to specify the pixel formats GRAY8, GRAY16LE,
and GRAY16BE? There has to be someway to implement these commands,
Thanks again for your input.
On 9/12/12, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
> Carl Eugen Hoyos <cehoyos <at> ag.or.at> writes:
>> Marc Elliott <elliott2w1 <at> gmail.com> writes:
>> > 3 [volta]/home/student/elliott> ffmpeg/ffmpeg -qmin 2 -qmax 31
>> > -s 320x240 -f rawvideo -flags gray -pix_fmt:output gray -an
>> > -i testvideo_1000f.raw output.swf
>> > I am fairly new to FFMPEG and I am afraid I am using either the wrong
>> > syntax or the wrong parameters in my command line. For some reason,
>> > the format of the output is yuv420p.
>> The default video codec for swf is flv1 (Sorenson Video) and
>> this codec only support yuv420p. You can try -vcodec mjpeg but
>> this seems to have problems (I don't know if they are expected).
> I fixed muxing mjpeg in swf, but that does not help with your
> original problem: There is no video codec supported in swf
> that allows to encode gray - you can only set u and v to the
> appropriate values.
> Carl Eugen
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
More information about the ffmpeg-user