asfdec: remove some write-only values from the context

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 569ff02168dfe618599db5d5a327caf8b3051dd5)

Fix build with threading disabled

The avcodec_thread_free() compatibility wrapper calls ff_thread_free(),
which is not defined when threading is disabled.  Make this call
conditional.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 9a77a92c2b6855781d2a4cfab14c67ae4025760c)

w32thread: add missing #include thread.h

This should fix building with win32 threads.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit aef669cdfd984a737ad876b33ee1b160f87f5f9a)

asf: split ASFContext into muxer and demuxer parts.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 4bc328a2bdf96d01afd3cf4532efb9db41f00985)

check sample_fmt in avcodec_open

check AVCodecContext->sample_fmt against AVCodec->sample_fmts[] to ensure
that the encoder supports the specified sample format. Error out if it doesn't.
Previously, it would continue and output garbage. Fixes issue 2587.
(cherry picked from commit 2cfa2d925808e6cc6fb7a7c133b7cb7622afd37e)

mpegts: remove unused macro MAX_SCAN_PACKETS

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit f4c79d1e0b2e797012304db57903e4091b0c2d7c)

vp3: Frame-based multithreading support

Decode times for big_buck_bunny_720p_stereo:

1 thread:
real    1m14.227s
user    1m13.104s
sys     0m1.108s

2 threads: (33% faster)
real    0m49.329s
user    1m33.735s
sys     0m1.834s

3 threads: (44% faster)
real    0m41.593s
user    1m44.884s
sys     0m1.967s
(cherry picked from commit d23845f311f04e98777612cae1b55e28923ccdc6)

Add missing git rev hash.
(cherry picked from commit f2146944fcd00a0a7918931c6f0f5c3f88cd6f1d)

Deprecate avcodec_thread_init()

As a side effect of the last commit, avcodec_open() now calls it automatically,
so there is no longer any need for clients to call it.
Instead they should set AVCodecContext.thread_count.

avcodec_thread_free() is deprecated, and will be removed from avcodec.h at the
next MAJOR libavcodec bump.

Rename the functions to ff_thread_init/free, since they are now internal.
Wrappers are provided to maintain API compatibility.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit c0b102ca03fe92250f1ce620aec3836f529fc1d6)

Add missing git rev hash.
(cherry picked from commit 8e8cc52be3b515bc91cd9452daca7a65feaea5ad)

Frame-based multithreading framework using pthreads

See doc/multithreading.txt for details on use in codecs.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Add missing git revision hask.
(cherry picked from commit c2bd7578af069206831a9c25fa68c9bbd5004619)

asf: make ff_guidcmp inline and move it to asf.h

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit e4e234fad77daa8628fc56155563248165d51ab4)

Update qmin/qmax values for libx264 presets

Also allow qmin/qmax to go up to 69 (the current max value for libx264).  This
will have to increase when we add 9/10-bit support.
(cherry picked from commit c7ac200d15e3240972d269df768068f0e3bb9c2f)

Fix broken vbv_buffer_init handling in libx264.c

Due to being pants-on-head retarded, libavcodec defaults this to zero, which
results in broken output.  This didn't affect ffmpeg.c, which sets it itself,
but caused problems for other calling apps using VBV.
(cherry picked from commit f7f8120fb9a06b5d7fbf5add48a0d8464319a332)

VP8: idct_mb optimizations

Currently uses AV_RL32 instead of AV_RL32A, as the latter doesn't exist yet.
(cherry picked from commit 62457f9052ea15123688455aad866cb070634f13)

Fix ff_emu_edge_core_sse() on Win64.

Fix emu_edge_v_extend_15 to be <128 bytes on Win64, by being more strict
on the size of registers and which registers are being used for operations
where multiple are available. This fixes segfaults in emulated_edge()
function calls on Win64.
(cherry picked from commit 17cf7c68ed26a4cb3c7adf7488a38c2e19118918)

lavf: rename ff_probe_input_buffer to make it public

It is useful for applications that hand input data directly to lavf via
a ByteIOContext.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 3940caad02fbc4f075e77bc605849b1d84ba1b8e)

lavf: simplify pb parameter of ff_probe_input_buffer

There is no need to pass the ByteIOContext via a pointer to a pointer
anymore.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit aad216fd7e3209fe0a865d8751e680925f6654d3)

lavf: update ff_probe_input_buffer documentation

It never reopens the bytestream anymore.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 4d016dd4e5b288b3c0c7396935326cb07a289ac2)

oggdec: Fix incorrect assumption about header/data interleaving

Currently (since the data_offset fix) the ogg demuxer assumes that
after the first non-header packets in any stream no more header packets
will follow.
This is not guaranteed, so change the code back again to wait until it
has finished the headers for all streams before returning from ogg_get_headers.

This fixes issue 2428.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 6bd69e6adadf645fd07e909bebc150eab4b9c3c8)

Fix HOSTLIBS on Haiku

Haiku does not have a separate libm, so do not try to link to it.

Signed-off-by: François Revol <revol@free.fr>
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit f59c4bd625839dbe1e099c6a8b38988108883623)

Documentation updates for the git migration

This cleanup patch updates the developer documentation with respect to
the migration to the git scm.
(cherry picked from commit 87800dc2bf8f2724a99e51bb079ad7fb4b9dfd3b)

logging: downgrade recoverable errors to warnings

In all 3 cases, the decoding continues and thus a warning would be sufficient.
Helps application that catch them with own log handers to handle them
accordingly.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit ae2104791ffa8466d3f6972ed0793b2a165daabe)

add APIChanges entry for fe9a3fb
(cherry picked from commit 7ab8758baf743b3d525c07a770e13038b0885461)

h264: define FF_PROFILE_H264_HIGH_444 to the correct value

It was removed in fe9a3fb since it had the wrong value. Add profile name
for it.
(cherry picked from commit 440b61691db2166abac3f58e01da1d4722f1f1e4)

libavfilter: add video movie source

See thread:
Subject: [PATCH] movie video source
Date: 2010-12-31 15:35:30 GMT

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>

Apply misc fixes to the image2 muxer documentation.

The fixes were pointed out by Diego.

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
(cherry picked from commit 0cad24ce9b02037c9cdad84cae905f96b04d7d4c)

Add documentation for the framecrc muxer.

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
(cherry picked from commit 77d4ed7a127b88f9b8ddd741c65e678198feb285)

Add documentation for the crc muxer.

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
(cherry picked from commit a4effe432f4aa59d52465b88589f92addf3afd3e)

Document null muxer.

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
(cherry picked from commit f4acb837eb4af74996b678f3f55eaa66c47a66ee)

VP8: ARM NEON optimisations for dsp functions

This adds NEON optimised versions of all functions in VP8DSPContext.
Based on initial work by Rob Clark.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit a1c1d3c003b0ec16fdb6574913781313fb2c7ab6)

Remove Xan WC4 cruft from xan.c

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 90e8a9c34f641d0cb9137190c1912a3da3095e01)

Xan4 decoder

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 44ddfd47d671d2587903d94c8b565f68f45bd4bc)

matroskadec: add generic element length validation.

This validate the length of a mkv element directly after reading
it.
This has the advantage that it is easy to add new limits and makes
it less likely to forget to add checks and also avoids issues like
bits of the length value above the first 32 being ignored because
the parsing functions only takes an int.
Previously discussed in the "mkv 0-byte integer parsing" thread.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 95ec3d4cacd084e2448c3a1aba420e7d8f00e19b)

Fix compile warning.

Change int64_t into a int, which caused this compiler warning:
libavformat/oggparseskeleton.c:64: warning: passing argument 2 of ‘av_reduce’ from incompatible pointer type
(cherry picked from commit 69ff14920429c9e128a8bcf65ce3f4b4aa93f3d1)

avidec: simplify read_gab2_sub

Use avio functions instead of bytestream ones (also drops dependency on
lavc and removes a bunch of warnings).
Drop custom version of avio_get_str16 and use that instead.

Tested on mewmew-ssa.avi sample.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 47fdf00a77e82a0e30422ed08d5b295e9ae8d506)

lavf: move internal functions from avformat.h to internal.h

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 19711af5cdc364f9e02ea8103dd6e1e09dc288a4)

Make av_set_pts_info keep previous time base if new one is invalid.

Fixes issue 2475.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit b3190529dfefe3226302b23e76e16c631cde6649)

pass QDMC extradata to the decoder

Makes playing QDMC files in MPlayer work when using the libavformat demuxer.
Problem was that the extradata was not passed from demuxer to decoder.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit ed19fafd486d6ab0d6e1eba80ceaa482a740c556)

configure: check yasm/nasm for working pextrd opcode

NASM versions older than 2.08 fail to build ffmpeg with several
"error: operation size not specified" errors but this is not caught in
configure.

Fix that by checking if "pextrd [eax], xmm0, 1" works in configure.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 48545a8f724247853c5b1d4e0a24e3ea3ee06515)

vorbis dec: Remove obsolete comment

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

vorbis dec: cosmetics: Indent CPP cond properly

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

vorbis dec: cosmetics: Indent consistently

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

vorbis dec: cosmetics: Indent after scope deletion

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

vorbis dec: Delete useless scopes

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Implement guessed_pts in avcodec_decode_video2

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

dvdsubdec.c: prevent input buffer overflow

In some places, dvbsubdec passes improper input buffer size to
bitstream reading functions, not accounting for reading pointer
updates.

Fixed by using buffer_end - buffer pointer instead of fixed buffer length.

Signed-off-by: Jindrich Makovicka <makovick@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Make inter_rvlc and intra_rvlc static tables.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 84ae8936f642042fe7ad3466ce3a26dec77016f1)

Fill in missing date.
(cherry picked from commit ae0f8a1a33158397c5014745424389ba1f543cfd)

Update MINOR and set git rev for non-blocking flag API addition.
(cherry picked from commit efdd67cb00ad770c16c47161c023121e1ae53ae9)

Replace remaining occurrences of deprecated CH_* with AV_CH_*

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit c2fcd0a7a4d0bda1a3306e40b70ce281a987df60)

Non-blocking protocol: TCP

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit ad3cffb68f9c77e140660a8ae7d43c8606208178)

Non-blocking protocol: core wrapper functions

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 90441276e4f661c6aec5e4d2c5718cde1ff1946d)

Non-blocking protocols: flag and documentation

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit fe174fc8fc4bbdb050014a945de7eb9b28ba358e)

Set channel_layout for mpegaudio

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit f4a86bc981d6743778dd1037fea243d36229ede1)

mp3enc: write ISO8859-1 instead of UTF-16 when possible

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 5a6de4e7e8d81169be9b6909b71e42a9ece59a82)

reindent after last commit

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 74571e333cc9abf3fe3fde3735698def1547db71)

wtv: do not use flag in stream_guid chunk to determine if stream is valid, as this method is unreliable

This fixes roundup issue 2556.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit e4f85b849913794395bb03dfc09546cd41b10882)

vp3: Move table allocation code into a new function

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit edbb0c07081e78a4c7b6d999d641183bf30f1a2e)

vp3: Factor out expression

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit e8dcd730583a0aa69c33a17fc27d65fa55f5effe)

cmdutils: fix codec-specific options from preset

Using a preset file caused the address of a stack variable to be stored
in opt_names/values. This change causes the strings to be dup'd then
freed in uninit_opts.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 60ff9de6ffa740e0df8c2a019c72e2d332b9788d)

cmdutils: fix opt_values leak

Add free to uninit_opts and relocate opt_names to same

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 3a6a9cdf5b8e4c4514e483484ef1f57b07ee16f2)

Adopt pkt_dts/pkt_pts in lavc clients

No behavior change; this makes DTS reliable with the next patch.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 6b474953975fd8ea64d1ed4d09c42b2d8e787c6f)

applehttp: Handle absolute paths relative to the current server

This fixes roundup issue 2583.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 185a155e5701cfaa0281bf91a5a140d498aa0a7f)

movenchint: Use rtpenc_chain for setting up the chained RTP muxer

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 5306bf41a619cb757ef0e0092ea4f6bc1087e687)

rtpenc_chain: Don't copy the time_base back to the caller

If required, the caller can do this itself. ff_write_chained rescales
timestamps as necessary, and all current callers of rtpenc_chain
use ff_write_chained, making this timebase copy unnecessary.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 397ffde115f4e0482a007b672f40457596cebfc4)

Use avformat_free_context for cleaning up muxers

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit b22dbb291d41e9fb038884bcebad2394c501cbaf)

Add an APIchanges entry for avformat_free_context

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit ff1974897778942180c1d4f95b0b7b45a4fbbc02)

libavformat: Add a function for freeing an AVFormatContext

This function is useful for freeing data structures allocated by
muxers, which currently have to be freed manually by the caller.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit f124b087eea442b65d809582527dfb5092a3463c)

libavformat: Use avcodec_copy_context for chained muxers

This avoids having the chained AVStream->codec point to the same
AVCodecContext owned by the outer AVStream. The downside is that
changes to the AVCodecContext made after calling av_write_header
cannot be detected automatically within the chained muxer.

This avoids having to manually unlink the chained AVStream->codec
by setting it to null before freeing the chained muxer via generic
freeing functions.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 1338dc082354b87c0e26f7f2ab09df5964b7f993)

VP8: slightly faster loopfilter sharpness logic
(cherry picked from commit 8a2c99b48688008dd0a01c4826161ad4f7c25436)

VP8: faster deblock strength calculation

Convert hev_thresh logic to a LUT, simplify mbedge_lim calculation.
(cherry picked from commit 79dec1541bf83fb587aee9a002649ad1fe038990)

Remove forgotten if (p) av_free(p) forms

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 290849e2a4e76484f1a34506782e8dbfe7bbe406)

Remove a few if (p) av_freep(&p) forms

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 523d9407d57e9210428b6d962f0ebf48aae55638)

VP8: faster filter_level clip
(cherry picked from commit a1b227bb533f173354795124e0b966277c251b56)

VP8: simplify lf_delta mb mode logic
(cherry picked from commit dd18c9a050ac1f1437151ceb2d2afbc96c5602d8)

Make avfilter_graph_free() free the graph.

Make avfilter_graph_free() free not only the internal structures, but
also the allocated graph, and set the graph pointer to NULL for
increased safety.

Simplify usage.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 4359288c565705d1734f63d277f8918ee5af5e54)

Make avfilter_graph_parse() not free the input graph

Make avfilter_graph_parse() only release the internal structures
allocated during the parsing, and leave to free the graph itself to
the calling code.

This approach looks cleaner, as the graph is not allocated by the
function.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit e8e5dde779fca80d86e00baea26d1baca333f4c0)

add ff_index_search_timestamp and ff_add_index_entry

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit e6fb5a4f78a67ed815e39ba8ac3893fd631b9b1a)

TCP: factor the poll() call

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 51b317d2e921f489de7fb72a7f5f05d3039fa1cb)

wtv: filesystem implementation

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit f61dee2fe4bc6a614079f37c25af1f92e90bc35b)

Always use av_set_pts_info to set the stream time base.

tty.c: rename PKT_FLAG_KEY to AV_PKT_FLAG_KEY.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit a9d921cbad7ec7e88bdb81b046faa9c1c6ac6d3d)

Rename remaining occurrences of SAMPLE_FMT_* to AV_SAMPLE_FMT_*

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 151595fe2e06969a83654564a15feb5b9e8aa2c4)

Replace remaining occurrences of CODEC_TYPE_* with AVMEDIA_TYPE*

Tested to compile with lavc major bump.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit b2ed95ec48aceb21a9bb47af85d259ee52b8b7ea)

sapenc: Free AVStream->info on cleanup

This fixes yet another memory leak, present since SVN rev 25418.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 1f56f5ed6d68f6492e213944e145e04e4d4dca13)

rtmpproto: rename URLContext* argument in rtmp_write()

Now the first argument is URLContext *h. However, the function logs to
LOG_CONTEXT, which is #defined as 's' for new lavf major versions.

Therefore, rename h -> s.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 9ad4c65f6fa7ff6d3fb7d5ea02908bbd6adc583f)

Add ProRes FOURCCs to isom.c

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit e65b1934bf4f2fbde611b75ea6c0c871daaf0b56)

Add APIchanges entry for lavc 52.109.0

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 75fd0668df64c4b7140be5ac829dee4e327a3e57)

Add CODEC_ID_PRORES and bump lavc minor version

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit f5b82f45dce8b734074a5e72e22ae42078ae9ce9)

Add AVC-Intra identifiers used by Flip4Mac for mov files

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit aa42cce57ddf34b4e2c365859206eb52e2415ff5)

Remove a few if (p) av_free(p) forms

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 437fb1c87d7b4b0730db97d0858b4f39fffff2a9)

Avoid pointless check before calling free

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit dc75d6dbf2af3c03b33d3159e1dadccf22c076ea)

Set pkt_pts in avcodec_default_reget_buffer()

This was missed when pkt_pts was first added.

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 62ecd3635a1329c49bc3b97ba84ad4d53d847163)

Free AVStream->info in chained muxers

This fixes memory leaks in the RTSP muxer and RTP hinting in the
mov muxer present since SVN rev 25418.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
(cherry picked from commit ce41c51b0c71c87f623914ba0786aef325d818fe)

rtsp: Don't store RTSPStream in AVStream->priv_data

For mpegts in RTP, there isn't a direct mapping between RTSPStreams
and AVStreams, and the RTSPStream isn't ever stored in
AVStream->priv_data, which was earlier leaked. The fix for this
leak, in ea7f080749d68a431226ce196014da38761a0d82, lead to
double frees for other, normal RTP streams.

This patch avoids storing RTSPStreams in AVStream->priv_data, thus
avoiding the double free. The RTSPStreams are always available via
RTSPState->rtsp_streams anyway.

Tested with MS-RTSP, RealRTSP, DSS and mpegts/RTP.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
(cherry picked from commit d9c0510e22821baa364306d867ffac45da0620c8)

ffmpeg.c: rename map_meta_data option to map_metadata

It's consistent with the -metadata option and easier to write.

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
(cherry picked from commit 87e4d9b252bc6fa3b982f7050013069c9dc3e05b)

Add forgotten minor API bumps and APIChanges entries

The bumps are for adding version.h and avio_{get/put}_str functions in
lavf and making av_dlog public in lavu.

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>

ac3enc: Change EXP_DIFF_THRESHOLD to 500.

This patch changes the exponent difference threshold in the exponent
strategy decision function of the AC-3 encoder.  I tested lowering in
increments of 100.  From 1000 down to 500 generally increased in quality
with each step, but 400 was generally much worse.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit c3beafa0f14fd81ab43083f61872cbd5426647cf)