On Fri, Jan 08, 2016 at 01:03:58PM +0100, Mats Peterson wrote: > In many older QuickTime files, the audio format, or "fourcc", is > 0x00000000. The QuickTime File Format Specification states the following > regarding this situation: > > "This format descriptor should not be used, but may be found in some > files. Samples are assumed to be stored in either 'raw ' or 'twos' > format, depending on the sample size field in the sound description." > > MPlayer handles this logic by itself, but FFmpeg/FFplay currently does > not. > > Mats > > -- > Mats Peterson > http://matsp888.no-ip.org/~mats/
> mov.c | 16 +++++++++++++++- > 1 file changed, 15 insertions(+), 1 deletion(-) > d5836fe68cf50aa82653253f0ffc3f345d1c066b > 0001-lavf-mov-Audio-and-fourcc-0x00000000.patch > From 640e12e8450a630f1569009094ac1bd51d8cfebf Mon Sep 17 00:00:00 2001 > From: Mats Peterson <matsp...@yahoo.com> > Date: Fri, 8 Jan 2016 12:59:13 +0100 > Subject: [PATCH v3] lavf/mov: Audio and fourcc 0x00000000 > > In many older QuickTime files, the audio format, or "fourcc", is > 0x00000000. The QuickTime File Format Specification states the following > regarding this situation: > > "This format descriptor should not be used, but may be found in some > files. Samples are assumed to be stored in either 'raw ' or 'twos' > format, depending on the sample size field in the sound description." > > MPlayer handles this logic by itself, but FFmpeg/FFplay currently does > not. > > Mats > > --- > libavformat/mov.c | 16 +++++++++++++++- > 1 file changed, 15 insertions(+), 1 deletion(-) applied simplified a bit thanks [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB What does censorship reveal? It reveals fear. -- Julian Assange
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