[FFmpeg-user] Obtaining to mp4 files for HbbTV

Joan Roqué joanrq at gmail.com
Tue Jun 19 21:03:52 CEST 2012

2012/6/18 Roger Pack <rogerdpack2 at gmail.com>:
>> I think it is mp41a or something like that. But i'll attach the output
>> later.
>> The problem it is that  i expected both solutions to be equivalent.
>> Both systems should be equivalents isn't it?
> So they both play fine in, say, VLC, but one doesn't play in HbbTV?
they are working with no problems with VLC, Firefox (with HbbTv addon)
and some advanced HbbTV STB (like videolan), but in EN2000 (Engel STB)
does not works and the problem it is that EN2000 is the best equipment
to test, it is just HbbTV compliant but with antenna so it is better
to use in a TV environment. Wideolan improves HbbTV with some other
features. obviously Firefox (with HbbTV addon) or VLC far to be
restrictive for testing HbbTV (but necessary for initial tests)

I'm Using the following script which gives me three mp4 files
the first one does not works
for i in "$@"; do
	# Alguns arxius no s'esborrarien si no es fa d'aquesta manera
	ffmpeg -i "$i" -vn -acodec libfaac -ab 128k -ar 44100 -async 1 -y "${i%.*}".m4a
#	for k in 500k 1000k 1500k  2000k 2500k ; do
	for k in 1500k ; do
		rm "${i%.*}$k"v2.mp4
		rm "${i%.*}$k"v3.mp4
# ---> NO EN EN2000
		ffmpeg -i "$i" -acodec libfaac -b:a 128k -ar 44100 -async 1 -vcodec
libx264 -vf yadif=1:1 -profile:v high -level 3.1 -b:v "$k" -threads 2
-y "${i%.*}$k".mp4
# ---> SI
		MP4Box -add "${i%.*}$k".mp4 -new "${i%.*}$k"v2.mp4
# ---> SI
		ffmpeg -i "$i" -an -vcodec libx264 -vf yadif=1:1 -profile:v high
-level 3.1 -b:v "$k" -threads 2 -y "${i%.*}$k"v3.mp4
		MP4Box -add "${i%.*}".m4a "${i%.*}$k"v3.mp4
With this script the first mp4 file does not works at all, and the
second ant third mp4's works with no problem
I came here because it looks like if I miss something that MP4Box can
easily arrange, and I would like to know how to debug it

the original file it is an interlaced Top Field First .mpg file,
that's why I'm using -vf yadif=1:1 (I don't know if its correct but it
works better than before)

What shalkl I send in that case the uncutted output?
mediainfo (-fullinfo option) ?
or there is another way to see the file information...

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