On Wed, 29 Dec 2004, Doug Larrick wrote:
]Daniel Thor Kristjansson wrote:
]> Most of audio information with ATSC is not in the stream that ffmpeg sees.
]> Even the limited audio descriptor sometimes present in the PMT is jettisoned
]> with the PMT rewriting. I don't think ffmpeg even tries to look
Daniel Thor Kristjansson wrote:
Most of audio information with ATSC is not in the stream that ffmpeg
sees. Even the limited audio descriptor sometimes present in the PMT is
jettisoned with the PMT rewriting. I don't think ffmpeg even tries to
look at this information, but we don't save it in the
On Wed, 29 Dec 2004, Doug Larrick wrote:
]I did some digging around last night, and here's what I found out. AC3 audio
]streams (used by ATSC and DVD) contain information in their headers about
]libavformat/libavcodec expose none of this except number of channels, and even
]that is not properly in
Doug Larrick wrote:
libavformat/libavcodec expose none of this except number of channels,
and even that is not properly initialized (always 2) by the time we
use it in avformatdecoder.cpp. My immediate problem would be solved
if I fixed this bug, because it turns out the DVS stream is mono. Bu
Well, what it really requires is for someone to look up the rule used
for audio streams in MPEG2 files. There must be some sort of rule,
otherwise stand alone DVD players and HDTVs would get it wrong. In
my (limited) testing, DVDs appear to follow a pattern of the highest
numbered track that meet
