Fixes a problem where a sample entry which cannot be written correctly appears to succeed, but produces an invalid file.
For example, this command:
ffmpeg -f lavfi -i sine=frequency=1000:duration=5 -codec:a ac3 -movflags +empty_moov -frag_duration 5000000 /tmp/foo.mp4
produced a file with the ac-3 sample entry, but no AC3SpecificBox (dac3) child, which is invalid according to ETSI TS 102 366.
Reviewed-by: Baptiste Coudurier <baptiste.coudurier@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes some random assertion failures with
ffprobe -show_packets async:samples/ffmpeg-bugs/trac/ticket6132/Samsung_HDR_-_Chasing_the_Light.ts > /dev/null
Signed-off-by: Marton Balint <cus@passwd.hu>
Fixes: OOM
Found-by: Michael Hanselmann <public@hansmi.ch>
Reviewed-by: Michael Hanselmann <public@hansmi.ch>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Fixes: Infinite loop
Found-by: Michael Hanselmann <public@hansmi.ch>
Reviewed-by: Michael Hanselmann <public@hansmi.ch>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
The specification requires the demuxer to only read the data
atom up to its given size, this is necessary as atoms are
allowed at the end of the file.
This patch duplicates the behaviour of the QuickTime player.
This allows the underlying files to change their duration on subsequent
avformat context opens.
An example use case where this matters:
ffconcat version 1.0
file dummy.mxf
file dummy.mxf
ffmpeg -re -stream_loop -1 -i dummy.ffconcat -f sdl2 none
The user can seamlessly change the input by atomically replacing dummy.mxf.
v2: Set ConcatFile duration in read_header for all segments with known
durations because from now on we always recalculate the start time in
open_file, and an instant seek could have caused unset ConcatFile durations.
Signed-off-by: Marton Balint <cus@passwd.hu>
Fixes a warning using musl:
In file included from libavformat/rtpproto.c:43:0:
/usr/local/musl/include/sys/poll.h:1:2: warning: #warning redirecting incorrect #include <sys/poll.h> to <poll.h>
The variable "err" is not initialized, and set only when something went wrong.
When everything is OK, nobody sets it, so using it result in UB.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This breaks totally valid files that get caught in its heuristic.
This, according to the commit message, is my own doing, having asked
Michael to implement this check and providing a sample that was
"wrong". I am now atoning for my sins, and removing this hack, having
seen the light (aka that this was silly to do in the first place).
Resotores correct behavior on valid files.
This reverts commit 8e5e84c2a2.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
This is a regression introduced by 223d2bde22.
It appears that regression was introduced in 4.1, 4.0.x does not share
this behaviour.
Temp files were not created for MPEG-TS segments options - HLS_TEMP_FILE
flag was never set on AVFormatContext, it is however set on HLSContext object.
In order to fix this issue, proper flags field must be checked. In addition,
renaming code was messed up and apparently was working only for MP4 files.
