Tim Walker [Fri, 1 Apr 2016 01:22:48 +0000 (03:22 +0200)]
ac3dec: change logging of skipped E-AC-3 substreams.
Change log level from warning to debug: the E-AC-3 "core"
substream can be successfully decoded without the additional
and dependent substreams, and their presence is already
indicated via avpriv_request_sample in ff_eac3_parse_header.
Tim Walker [Fri, 1 Apr 2016 01:22:47 +0000 (03:22 +0200)]
eac3dec: don't call avpriv_request_sample every frame.
These errors neither prevent nor stop successful decoding
of the E-AC-3 stream's "core", causing avpriv_request_sample
to be called for every single frame in the bitstream.
Josh de Kock [Sat, 26 Mar 2016 15:27:23 +0000 (15:27 +0000)]
jack: Support OSX
Previously, with JACK installed, the configure script would enable the
JACK indev; this broke on OS X due to an incomplete pthreads
implementation. Add some simple macros to map libdispatch to pthreads
on OS X.
Anton Khirnov [Sun, 27 Mar 2016 12:25:31 +0000 (14:25 +0200)]
avconv: fix -frames for video
For video, frame_number tracks the number of frames sent to the encoder.
So it should be incremented when we submit a frame, not when we get a
packet back.
Anton Khirnov [Mon, 21 Mar 2016 13:23:19 +0000 (14:23 +0100)]
h264: reimplement 3aa661ec5 in a more explicit way
Instead of handling the problem inside NAL decoding code, add a higher
level wrapper function. This should be more robust against future
changes (and easier to read).
Martin Storsjö [Fri, 25 Mar 2016 21:44:10 +0000 (23:44 +0200)]
aarch64: Make transpose_4x4H do a regular transpose
Previously, ff_h264_idct_add_neon (originally in the arm version) used
a non-regular transpose in order to be able to use more instructions
that deal with registers as 128 bit register pairs. The aarch64
translation doesn't do it to the same extent, but brought along the
same structure since it was a straight translation.
This reshuffles ff_h264_idct_add_neon, bringing it closer to
the C implementation, making the transpose_4x4H macro do a regular
transpose, usable for other algorithms as well.
Previously, the third and fourth output from transpose_4x4H were
swapped, and prior to cc29d96d5a, the same inputs as well. In
addition to just swapping the outputs, also renumber the intermediate
registers for better readability (making the register order match
transpose_4x8B).
This runs with the same number of cycles as before.
Ico Doornekamp [Thu, 24 Mar 2016 13:31:38 +0000 (14:31 +0100)]
rtpdec_jpeg: fix low contrast image on low quality setting
The problem is that the argument 'q' is of the type uint8_t.
According to the JPEG standard, if 1 <= q <= 50, the scale factor
'S' should be 5000 / Q. Because the create_default_qtables() reuses
the variable 'q' to store the result of this calculation, for small
values of q < 19, q wil subsequently overflow and give wrong results
in the calculated quantization tables.
Instead, use a new variable 'S' (same name as in RFC2435) with the
proper range to store the result of the division.
Vittorio Giovara [Sat, 20 Feb 2016 01:18:49 +0000 (20:18 -0500)]
intrax8: Use local destination buffers
These buffers are just a way to store frame pointers and be able to
modify them without touching the original ones.
The two dependent decoders (WMV2 and VC1) do not need special care for
these fields: the former does not seem to use the dest buffers, while
the latter reinits them every time to the current frame data buffers.
So only keep a local copy rather than the one from mpegvideo.
Martin Storsjö [Fri, 27 Feb 2015 23:43:39 +0000 (01:43 +0200)]
tcp: Use rw_timeout for setting the connect/listen timeouts
Apply the default value for timeout in code instead of via the
avoption, to allow distinguishing the default value from the user
not setting anything at all.
Martin Storsjö [Sat, 28 Feb 2015 00:00:50 +0000 (02:00 +0200)]
avio: Copy URLContext generic options into child URLContexts
Since all URLContexts have the same AVOptions, such AVOptions
will be applied on the outermost context only and removed from the
dict, while they probably make sense on all contexts.
This makes sure that rw_timeout gets propagated to the innermost
URLContext (to make sure it gets passed to the tcp protocol, when
opening a http connection for instance).
Alternatively, such matching options would be kept in the dict
and only removed after the ffurl_connect call.
Andrey Utkin [Mon, 27 Aug 2012 13:31:08 +0000 (16:31 +0300)]
avio: Add an option 'rw_timeout'
If set non-zero, this limits duration of the retry_transfer_wrapper()
loop, thus affecting ffurl_read*(), ffurl_write(). As soon as
one single byte is successfully received/transmitted, the timer
restarts.
This has further changes by Michael Niedermayer and Martin Storsjö.
wm4 [Tue, 22 Mar 2016 18:09:53 +0000 (19:09 +0100)]
lavc: introduce a new decoding/encoding API with decoupled input/output
Until now, the decoding API was restricted to outputting 0 or 1 frames
per input packet. It also enforces a somewhat rigid dataflow in general.
This new API seeks to relax these restrictions by decoupling input and
output. Instead of doing a single call on each decode step, which may
consume the packet and may produce output, the new API requires the user
to send input first, and then ask for output.
For now, there are no codecs supporting this API. The API can work with
codecs using the old API, and most code added here is to make them
interoperate. The reverse is not possible, although for audio it might.