producer_avformat.c: add a bunch of metadata about the media under the properties key prefix "meta.media."
producer_avformat.c: add a bunch of metadata about the media under the properties key prefix "meta.media."

git-svn-id: 5ee9a2a761147e4d9fa32565ef7949b666b061d3@1282 d19143bc-622f-0410-bfdd-b5b2a6649095

mltframework/mlt,wideioltd/mlt,mltframework/mlt,xzhavilla/mlt,rayl/MLT,j-b-m/mlt,gmarco/mlt-orig,j-b-m/mlt,mltframework/melted,ttill/MLT-roto-tracking,anba8005/melted,zzhhui/mlt,mltframework/melted,rayl/MLT,mltframework/mlt,xzhavilla/mlt,ttill/MLT,anba8005/mlt,mltframework/mlt,j-b-m/mlt,xzhavilla/mlt,mltframework/mlt,mltframework/mlt,anba8005/melted,wideioltd/mlt,zzhhui/melted,siddharudh/mlt,ttill/MLT-roto-tracking,wideioltd/mlt,ttill/MLT-roto-tracking,gmarco/mlt-orig,siddharudh/mlt,mltframework/mlt,anba8005/mlt,siddharudh/mlt,mltframework/mlt,xzhavilla/mlt,anba8005/melted,anba8005/mlt,siddharudh/mlt,zzhhui/mlt,zzhhui/mlt,xzhavilla/mlt,gmarco/mlt-orig,anba8005/melted,ttill/MLT-roto-tracking,ttill/MLT,zzhhui/mlt,wideioltd/mlt,j-b-m/mlt,mltframework/melted,ttill/MLT-roto-tracking,rayl/MLT,rayl/MLT,ttill/MLT-roto,anba8005/melted,wideioltd/mlt,ttill/MLT-roto,zzhhui/mlt,xzhavilla/mlt,gmarco/mlt-orig,ttill/MLT-roto-tracking,ttill/MLT,zzhhui/melted,anba8005/mlt,gmarco/mlt-orig,zzhhui/melted,anba8005/mlt,gmarco/mlt-orig,siddharudh/mlt,zzhhui/mlt,mltframework/mlt,wideioltd/mlt,ttill/MLT,anba8005/mlt,j-b-m/mlt,siddharudh/mlt,ttill/MLT-roto,zzhhui/melted,j-b-m/mlt,siddharudh/mlt,zzhhui/melted,mltframework/mlt,ttill/MLT-roto,j-b-m/mlt,mltframework/melted,xzhavilla/mlt,zzhhui/mlt,j-b-m/mlt,ttill/MLT-roto,j-b-m/mlt,ttill/MLT-roto-tracking,xzhavilla/mlt,zzhhui/melted,xzhavilla/mlt,gmarco/mlt-orig,zzhhui/mlt,ttill/MLT-roto,wideioltd/mlt,anba8005/mlt,j-b-m/mlt,ttill/MLT,anba8005/mlt,ttill/MLT-roto,ttill/MLT,ttill/MLT-roto,anba8005/mlt,ttill/MLT-roto,gmarco/mlt-orig,gmarco/mlt-orig,ttill/MLT-roto-tracking,anba8005/melted,rayl/MLT,ttill/MLT-roto-tracking,wideioltd/mlt,ttill/MLT,siddharudh/mlt,zzhhui/mlt,siddharudh/mlt,ttill/MLT,mltframework/melted,ttill/MLT,rayl/MLT,rayl/MLT,wideioltd/mlt,rayl/MLT,mltframework/melted