On Wed, Dec 02, 2015 at 06:31:12PM +0100, Yann Coupin wrote: > Hi, > > According to Microsoft's specs [1] (and after experiencing issues with the > Unified Streaming Platform [2] server), content encoded with HE-AAC audio > should use the AACH FourCC, but the value AACL is hardcoded in the manifest > generation code. So I created the attached patch to fix this. It passes > "test fate" and its effects can be seen using the commands bellow and > compatible server. > > Although I tried to follow the patch submission checklist don't hesitate to > point errors or mistakes. > > Yann > > > Sample command lines: > > ffmpeg -i video.mp4 -vn -acodec libfdk_aac -profile:a aac_low -ab 128k -ar > 44.1k -movflags isml -f ismv http://example.com/ > > FourCC of audio track in manifest is AACL as before > > ffmpeg -i video.mp4 -vn -acodec libfdk_aac -profile:a aac_he -ab 64k -ar > 44.1k -movflags isml -f ismv http://example.com/ > > FourCC is AACH > > ffmpeg -i video.mp4 -vn -acodec libfdk_aac -profile:a aac_he_v2 -ab 64k -ar > 44.1k -movflags isml -f ismv http://example.com/ > > FourCC is AACP > > [1] https://msdn.microsoft.com/en-us/library/ff728116%28v=vs.95%29.aspx > [2] http://www.unified-streaming.com/
> movenc.c | 12 +++++++++++- > 1 file changed, 11 insertions(+), 1 deletion(-) > f4e405da303c85b76a70d2fb7c0ca163bcc4ffd0 > 0001-HE-AAC-correct-FourCC-in-ISML.patch > From 4962e42d1f2310048486a3fea5d338947ee78f9e Mon Sep 17 00:00:00 2001 > From: Yann Coupin <yann.coupin+ffm...@gmail.com> > Date: Tue, 1 Dec 2015 12:22:38 +0100 > Subject: [PATCH] HE-AAC correct FourCC in ISML > > --- > libavformat/movenc.c | 12 +++++++++++- > 1 file changed, 11 insertions(+), 1 deletion(-) applied thanks [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Democracy is the form of government in which you can choose your dictator
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