Commit Graph

3 Commits

Author SHA1 Message Date
Andreas Rheinhardt 790f793844 avutil/common: Don't auto-include mem.h
There are lots of files that don't need it: The number of object
files that actually need it went down from 2011 to 884 here.

Keep it for external users in order to not cause breakages.

Also improve the other headers a bit while just at it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-03-31 00:08:43 +01:00
Vadym Bezdushnyi bc04ea39a5 avformat/movenccenc: Fix memory leak for muxing CENC-encrypted files
Memory for auxillary_info was not freed after usage.

Leak can be reproduced with following commands:

Optionally, generate input video:
ffmpeg -f lavfi -i testsrc=duration=10:size=1280x720:rate=30 input.mp4

Run ffmpeg with valgrind:
valgrind --leak-check=full --show-leak-kinds=all \
ffmpeg -y -i input.mp4 -vcodec copy -acodec copy \
-encryption_scheme cenc-aes-ctr \
-encryption_key 00000000000000000000000000000000 \
-encryption_kid 00000000000000000000000000000000 \
ffmpeg_encrypted.mp4

For test video which has duration of 10 sec, leak is 4 Kb.
For 100 sec video, leak will be 33 Kb. Most likely,
leaked memory will grow linearly to the number of input frames.

Signed-off-by: Vadym Bezdushnyi <vadim.bezdush@gmail.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
2021-02-27 22:09:51 +01:00
erankor 4469e8ebb2 movenc: support cenc (common encryption)
support writing encrypted mp4 using aes-ctr, conforming to ISO/IEC
23001-7.

3 new parameters were added:
- encryption_scheme - allowed values are none (default) and cenc-aes-ctr
- encryption_key - 128 bit encryption key (hex)
- encryption_kid - 128 bit encryption key identifier (hex)

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-12-15 14:16:28 +01:00