Nicolas George [Tue, 2 Dec 2014 12:54:46 +0000 (13:54 +0100)]
configure: add a note about pkg-config --static.
Try to detect "$cc -static" without "pkg-config --static".
Also, when a library detection using pkg-config fails,
make it explicit this was pkg-config.
Nicolas George [Tue, 2 Dec 2014 12:29:47 +0000 (13:29 +0100)]
configure: add optional pkg-config helper and use it.
The require variant dies if the package is not present.
The check variant does not import the flags to the used list.
The new variant imports the flags if the package is present
but does not die if it is not.
The new call graph is: require -> use -> check.
Use use_pkg_config for libx264 and libsmbclient: more readable
and three external call less per library.
avfilter/vf_tinterlace: Favor using standard timebases for the output
Reported-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Inspired by discussion with Kieran Kunhya <kierank@obe.tv> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The format is now:
-bsf:X filter1[=opt1=str1/opt2=str2],filter2
ie the parameters are appended after the filter name using '='. As ','
has been reserved already for the list of filters, '/' is just an
example of token separation for now, but that could become part of the
API to avoid each bsf using its own tokenization.
The proper solution would be using AVOption, but this is overkill for now.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Reinhard Tartler [Thu, 27 Nov 2014 17:21:03 +0000 (18:21 +0100)]
Replace lena.pnm
The new reference.pnm is a freely licensed replacement. The photo has
been taken by Reinhard Tartler on August 28 2014, and is licensed under
the expat license as stated at http://www.jclark.com/xml/copying.txt
Benoit Fouet [Fri, 28 Nov 2014 09:43:01 +0000 (10:43 +0100)]
avcodec/pngdec: do not blend on transparent black
There is no need to memset the zlib output buffer, as there is no
blending happening there. Instead, do not blend when the dispose
operation is set to 'background' (tranparent black).
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Rong Yan [Fri, 28 Nov 2014 06:52:24 +0000 (06:52 +0000)]
avcodec/ppc/h264qpel_template: POWER LE support for PREFIX_h264_qpel16_h_lowpass_altivec() PREFIX_h264_qpel16_v_lowpass_altivec() PREFIX_h264_qpel16_hv_lowpass_altivec()
add load_alignment() macro
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Rong Yan [Fri, 28 Nov 2014 06:50:49 +0000 (06:50 +0000)]
avcodec/ppc/h264chroma_template: POWER LE support for PREFIX_h264_chroma_mc8_altivec() PREFIX_no_rnd_vc1_chroma_mc8_altivec() CHROMA_MC8_ALTIVEC_CORE_SIMPLE() CHROMA_MC8_ALTIVEC_CORE()
add marcos GET_VSRC1() GET_VSRC()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Rong Yan [Fri, 28 Nov 2014 06:49:50 +0000 (06:49 +0000)]
avcodec/ppc/h264dsp: POWER LE support for h264_idct8_add_altivec() h264_idct_dc_add_internal() h264_loop_filter_luma_altivec() write16x4() VEC_1D_DCT() weight_h264_W_altivec() biweight_h264_W_altivec() VEC_LOAD_U8_ADD_S16_STORE_U8() ALTIVEC_STORE_SUM_CLIP()
Martin Storsjö [Mon, 24 Nov 2014 08:51:46 +0000 (10:51 +0200)]
rtmpproto: Only prepend @setDataFrame for onMetaData and |RtmpSampleAccess
Currently, when streaming to an RTMP server, any time a packet of type
RTMP_PT_NOTIFY is encountered, the packet is prepended with @setDataFrame
before it gets sent to the server. This is incorrect; only packets for
onMetaData and |RtmpSampleAccess should invoke @setDataFrame on the RTMP
server. Specifically, the current bug manifests itself when trying to
stream onTextData or onCuePoint invocations.
This fix addresses that problem and ensures that the @setDataFrame is
only prepended for onMetaData and |RtmpSampleAccess.
Since data is fed to the rtmp_write function in smaller pieces (depending
on the calling IO buffer size), we can't generally assume that the
whole packet (or even the whole command string) is available at once,
therefore we can only check the command string once the full packet
has been transferred to us for sending.
Martin Storsjö [Mon, 24 Nov 2014 08:41:34 +0000 (10:41 +0200)]
rtmppkt: Make pkt->data reallocable
We try to avoid mixing av_malloc with av_realloc, since av_malloc
may be implemented with functions that can't (formally) be mixed
with the functions used in av_realloc.
Fixes out of array access Fixes: signal_sigsegv_35bd0f0_1182_cov_791726764_STRUCT_B_Samsung_4.bit Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The atomics code is left in place as a fallback for synchronization in the
absence of p/w32 threads. Our ABI did not requires applications to
only use threads (and matching ones) to what libavutil was build with
Our code also was not affected by the leak this change fixes, though
no question the atomics based implementation is not pretty at all.
First and foremost the code must work, being pretty comes after that.
If this causes problems, for example when libavutil is used by multiple
applications each using a different kind of threading system then the
default possibly has to be changed to the uglier atomics.
Lukasz Marek [Sun, 16 Nov 2014 20:57:54 +0000 (21:57 +0100)]
ffmpeg_opt: make use of recommended encoder configuration
So far ffmpeg used recommended configuration only for codec priv options.
ffmpeg will use now codec defaults and then apply recommended configuration
for all options. Recommended configuration possibly contains minimal
set of options to filful user configuration.
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
Lukasz Marek [Sun, 16 Nov 2014 20:55:14 +0000 (21:55 +0100)]
lavf/ffmenc: store recommended encoder configuration
ffmenc will store recommended encoder configuration if present.
This will allow the user to base on local defaults and
apply only explicitly set options.
If recommended encoder configuration is not present, then
non-default context's options are stored.
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
Vincent Bernat [Fri, 23 May 2014 13:31:17 +0000 (15:31 +0200)]
avformat/rtpproto: Allow to specify DSCP class
By appending `?dscp=26` to the URL, IP packets will be classified as
AF31 (assured forwarding for multimedia flows with low probability of
loss). On congested network, this allows a user to assign priorities to
flows.
Vincent Bernat [Fri, 23 May 2014 13:26:32 +0000 (15:26 +0200)]
avformat/udp: Allow to specify DSCP class
By appending `?dscp=26` to the URL, IP packets will be classified as
AF31 (assured forwarding for multimedia flows with low probability of
loss). On congested network, this allows a user to assign priorities to
flows.
Fixes out of array read Fixes: signal_sigsegv_35bcf26_471_cov_2806540268_CAINIT_A_SHARP_4.bit Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
wm4 [Fri, 14 Nov 2014 12:34:50 +0000 (13:34 +0100)]
lavu: fix memory leaks by using a mutex instead of atomics
The buffer pool has to atomically add and remove entries from the linked
list of available buffers. This was done by removing the entire list
with a CAS operation, working on it, and then setting it back again
(using a retry-loop in case another thread was doing the same thing).
This could effectively cause memory leaks: while a thread was working on
the buffer list, other threads would allocate new buffers, increasing
the pool's total size. There was no real leak, but since these extra
buffers were not needed, but not free'd either (except when the buffer
pool was destroyed), this had the same effects as a real leak. For some
reason, growth was exponential, and could easily kill the process due
to OOM in real-world uses.
Fix this by using a mutex to protect the list operations. The fancy
way atomics remove the whole list to work on it is not needed anymore,
which also avoids the situation which was causing the leak.
Anton Khirnov [Sun, 23 Nov 2014 20:25:05 +0000 (21:25 +0100)]
lavu: add wrappers for the pthreads mutex API
Also add no-op fallbacks when threading is disabled.
This helps keeping the code clean if Libav is compiled for targets
without threading. Since we assume that no threads of any kind are used
in such configurations, doing nothing is ok by definition.
projects / ffmpeg / log