ffmpeg & jwplayer .mp4 problem

[mehmedean]

hi,

i have a .mp4 file whose size is 1280x720. i want it to be 640x360. so i use ffmpeg with the following command:
ffmpeg -i ma.mp4 -s 640x360 ma2.mp4

it creates ma2.mp4 (no problem with video players like mpc) but when i open browser, i can't see video on jwplayer window; it is just a black screen. however you can hear audio. i searched for this problem, but can't find any working solution. any help/comments would be great...

btw i use win32 version of ffmpeg. xp sp2 is installed in my computer. i also have mac osx but i barely use it.

[mehmedean]

do you have a suggestion? as you can see below, the recoded file is not H264, so how can i do that? i think the problem arises from this difference... When i execute "ffmpeg -i ma.mp4 -s 640x360 -sameq ma2.mp4":

the properties of original file(ma.mp4):
Video: MPEG4 Video (H264) 1280x720 25.00fps [Video]
Audio: AAC 44100Hz stereo 1411Kbps [Audio]

the properties of recoded file(ma2.mp4):
Video: MPEG4 Video 640x360 25.00fps [Video]
Audio: AAC 44100Hz stereo 1411Kbps [Audio]

[mehmedean]

btw what happened to previous messages?!

--- ok, i just mixed my topics, sorry