Commit Graph

6 Commits

Author SHA1 Message Date
Andreas Rheinhardt 104abea646 avcodec/ac3: Move non-(de|en)coder-only parts out of ac3.h
Move AC3HeaderInfo into ac3_parser_internal.h and the rest
into a new header ac3defs.h.

This also breaks an include cycle of ac3.h and ac3tab.h
(the latter now only needs ac3defs.h).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-05-15 18:13:56 +02:00
Andreas Rheinhardt 1dcd0adedd avformat: Remove unnecessary inclusions from libavcodec
Also improve the other headers a bit while at it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-03-23 23:45:39 +01:00
James Almer dd25ca02ae hls_sample_encryption: convert to new channel layout API
Signed-off-by: James Almer <jamrial@gmail.com>
2022-03-15 09:42:33 -03:00
Andreas Rheinhardt d7a75d2163 avcodec/ac3tab: Unavpriv ac3_channel_layout_tab
It is small (16 B) and therefore the overhead of exporting it more
than outweighs the size savings from not having duplicated symbols:
When the symbol is no longer avpriv, one saves twice the size of
the string containing the symbols name (2x30 byte), two entries
in .dynsym (24 bytes each on x64), one entry in the importing libraries
.got and .rela.dyn (8 + 24 bytes on x64) and two entries for the
symbol version (2 bytes each) and one hash value in the exporting
library (4 bytes).
(The exact numbers are of course different for other platforms
(e.g. when using dlls), but given that the strings saved alone
more than outweigh the array size it can be presumed that this
is beneficial for all platforms.)

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-01-04 13:16:49 +01:00
Andreas Rheinhardt 945b2dcc63 avformat/hls_sample_encryption: Fix precedence
Fixes Coverity ticket #1492869.

Reviewed-by: Steven Liu <lingjiujianke@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-11-09 15:44:17 +01:00
Nachiket Tarate ff958b3846 libavformat/hls: add support for decryption of HLS media segments encrypted using SAMPLE-AES encryption method
Apple HTTP Live Streaming Sample Encryption:

https://developer.apple.com/library/ios/documentation/AudioVideo/Conceptual/HLS_Sample_Encryption

Signed-off-by: Nachiket Tarate <nachiket.programmer@gmail.com>
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
2021-10-13 11:23:53 +08:00