Doc improvement for -target patch by (Michel Bardiaux <mbardiaux at peaktime dot be>)

Originally committed as revision 3569 to svn://svn.ffmpeg.org/ffmpeg/trunk

doc/ffmpeg-doc.texi

@@ -190,7 +190,7 @@ set the copyright
 set the comment
 
 @item -target type
-specify target file type ("vcd", "svcd" or "dvd"). All the format
+specify target file type ("vcd", "svcd", "dvd", "pal-vcd", "ntsc-svcd", ... ). All the format
 options (bitrate, codecs, buffer sizes) are automatically set by this
 option. You can just type:
 
@@ -198,6 +198,13 @@ option. You can just type:
 ffmpeg -i myfile.avi -target vcd /tmp/vcd.mpg
 @end example
 
+Nevertheless you can specify additional options as long as you know they do not compromise the
+standard, as in:
+
+@example
+ffmpeg -i myfile.avi -target vcd -bf 2 /tmp/vcd.mpg
+@end example
+
 @item -hq
 activate high quality settings
 

ffmpeg.c

@@ -3746,7 +3746,7 @@ const OptionDef options[] = {
     { "re", OPT_BOOL | OPT_EXPERT, {(void*)&rate_emu}, "read input at native frame rate", "" },
     { "loop", OPT_BOOL | OPT_EXPERT, {(void*)&loop_input}, "loop (current only works with images)" },
     { "v", HAS_ARG, {(void*)opt_verbose}, "control amount of logging", "verbose" },
-    { "target", HAS_ARG, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\" or \"dvd\")", "type" },
+    { "target", HAS_ARG, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
     { "threads", HAS_ARG | OPT_EXPERT, {(void*)opt_thread_count}, "thread count", "count" },
     { "vsync", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&video_sync_method}, "video sync method", "" },
     { "async", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&audio_sync_method}, "audio sync method", "" },