lavd/x11grab: reindent after last commit.

lavfi: check refcount before merging.

When merging the formats around the automatically inserted
convert filters, the refcount of the format lists can not be 0.
Coverity does not detect it, and suspects a memory leak,
because if refcount is 0 the newly allocated lists are not
stored anywhere. That gives CIDs 1224282, 1224283 and 1224284.
Lists with refcount 0 are used in can_merge_formats(), so the
asserts can not be moved inside the merge functions.

lavd/x11grab: add an option to disable MIT-SHM.

With remote displays supporting the MIT-SHM extension,
the extension is detected and used, but attaching fails
asynchronously.

lavd/x11grab: check 32-bits color masks.

The X11 servers by VNC, at 32-bits depths, has the following masks:
R:0x000007ff G:0x003ff800 B:0xffc00000
This is not compatible with AV_PIX_FMT_0RGB32, and the result
is success with completely wrong colors.

lavd/x11grab: change error code for unsupported visuals.

lavd/x11grab: disable drawing mouse without XFixes.

Fix a segfault if the XFixes extension is not available on
the X11 server.
Can be reproduced using the VNC server.

avcodec/resample: Use av_m/realloc_array()

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

avcodec/resample2: Use av_malloc(z)_array()

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

ffserver: use av_mallocz_array()

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

lavf/segment: set segment end time when the first packet arrives

Avoid negative durations in case there is a single packet in the current
segment, since in that case the end time is still set to the previous
segment end time.

lavf/segment: fix weird indent

lavf/segment: show incoming packet duration in debug message

lavf/segment: only use reference frames for computing the segment end time

This avoids a systematic overestimate of the segments duration when there
are several streams.

Fix trac ticket #3724.

avformat/dv: implement fallback in dv_extract_pack()

Fixes Ticket2340
Fixes Ticket2341

Based-on mail from Dave Rice <dave@dericed.com>
Tested-by: Dave Rice <dave@dericed.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '324ff59444ff5470bb325ff1e2be7c4b054fc944'

* commit '324ff59444ff5470bb325ff1e2be7c4b054fc944':
  avpacket: Check for and return errors in ff_interleave_add_packet()

Conflicts:
libavformat/audiointerleave.c
libavformat/internal.h
libavformat/mux.c

See: 4d7c71c36467331f1e0c0f17af9f371d33308a9c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '2db953f84671997e936f91140ffb5143c1537844'

* commit '2db953f84671997e936f91140ffb5143c1537844':
  h264: K&R formatting cosmetics

Conflicts:
libavcodec/h264.c
libavcodec/h264_direct.c
libavcodec/h264_slice.c

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

Merge commit 'a11ef610eec5241e226efbd1c5bb5eb45c88d2c2'

* commit 'a11ef610eec5241e226efbd1c5bb5eb45c88d2c2':
  h264: Remove some commented-out, broken cruft

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

doc/filters/drawtext: simplify example, use clip() eval function

lavfi/drawtext: add fontcolor_expr option

Allow to dynamically evaluate the font color.

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

avpacket: Check for and return errors in ff_interleave_add_packet()

Signed-off-by: Diego Biurrun <diego@biurrun.de>

h264: K&R formatting cosmetics

Signed-off-by: Diego Biurrun <diego@biurrun.de>
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

lavfi/drawtext: add expansion function eif()

It evaluates expression and outputs it as integer value, using specified
format.

Address trac ticket #3699.

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

lavu/eval: add clip function

avutil/opt: try to fix the case where src==dst in av_opt_copy()

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

libavformat/segment: change segment_list_size behavior to match hls_list_size behavior.

Make the segment muxer keep segment_list_size segments instead of
segment_list_size + 1 segments. This patch also changes the
documentation for segment_list_size to reduce possible confusion over
how many segments are kept.

this allows the segment list to
be limited to containing only one segment which used to be impossible
because a segment_list_size of 0 kept all the segments and a
segment_list_size of 1 kept 2 segments.

Signed-off-by: Simon Thelen <ffmpeg-dev@c-14.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat: Micro bump for "md5enc: add format_version, to allow selecting which version to use"

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

avformat/md5enc: add format_version, to allow selecting which version to use

Currently there is just version 1
Fixes remaining part of Ticket2280

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

armv6: Accelerate butterflies_float

I benchmarked the result by measuring the number of gperftools samples that
hit anywhere in the AAC decoder (starting from aac_decode_frame()) or
specifically in butterflies_float_c() / ff_butterflies_float_vfp() for the
same sample AAC stream:

                   Before          After
                   Mean   StdDev   Mean   StdDev  Confidence  Change
Audio decode       1542.8 43.7     1470.5 41.5    100.0%      +4.9%
butterflies_float  130.0  11.9     70.2   12.1    100.0%      +85.2%

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

armv6: Accelerate vector_fmul_window

I benchmarked the result by measuring the number of gperftools samples that
hit anywhere in the AAC decoder (starting from aac_decode_frame()) or
specifically in vector_fmul_window_c() / ff_vector_fmul_window_vfp() for the
same sample AAC stream:

                    Before          After
                    Mean   StdDev   Mean   StdDev  Confidence  Change
Audio decode        1598.2 47.4     1529.2 25.4    100.0%      +4.5%
vector_fmul_window  244.0  22.1     188.9  22.3    100.0%      +29.2%

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

h264: Remove some commented-out, broken cruft

avcodec/snow: remove unused variables

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

aaccoder: remove unused assignment

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit 'adff0a8166345bb9513f0f658043fb6387e90122'

* commit 'adff0a8166345bb9513f0f658043fb6387e90122':
  arm: dsputil: Coalesce all init files

Conflicts:
libavcodec/arm/Makefile
libavcodec/arm/dsputil_arm.h
libavcodec/arm/dsputil_init_arm.c
libavcodec/arm/dsputil_init_armv6.c

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

arm: dsputil: Coalesce all init files

vp9: remove unused assignment

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Reviewed-by: BBB
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

get_bits: remove unused assignment

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/snow: only allocate space for edges when encoding

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

avcodec/snowdec: remove mpegvideoencdsp dependency

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

diracdec: don't call ff_emulated_edge_mc_8 directly

Use the videodsp function pointer instead.

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '14b4e64eabc84c5a5e57c8ccc56bbeb95380823b'

* commit '14b4e64eabc84c5a5e57c8ccc56bbeb95380823b':
  g2meet: allow size changes within original sizes

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

Changelog: change  "version <next>" to "version 2.3"

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

g2meet: allow size changes within original sizes

doc/APIchanges: update

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

avcodec/hevc: clear HEVClcList[i] on allocation

Fixes fate failure with --enable-memory-poisoning && make THREAD_TYPE=slice THREADS=7  fate-hevc-conformance-ENTP_C_Qualcomm_1

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

avfilter/drawtext: Add basic text shaping using libfribidi

Fixes ticket #3758

Reviewed-by: Andrey Utkin <andrey.krieger.utkin@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avdevice/avfoundation: kCVPixelFormatType_OneComponent8 only exists from 10.8 onward

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

diracdec: remove unused dsputil context

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/matroskadec: fix declaration after statement

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

lavf: Add WebM DASH Manifest Muxer

This patch adds the ability to generate WebM DASH manifest XML using
ffmpeg. A sample command line would be as follows:

ffmpeg \
  -f webm_dash_manifest -i video1.webm \
  -f webm_dash_manifest -i video2.webm \
  -f webm_dash_manifest -i audio1.webm \
  -f webm_dash_manifest -i audio2.webm \
  -map 0 -map 1 -map 2 -map 3 \
  -c copy \
  -f webm_dash_manifest \
  -adaptation_sets “id=0,streams=0,1 id=1,streams=2,3” \
  manifest.xml

It works by exporting necessary fields as metadata tags in matroskadec
and use those values to write the appropriate XML fields as per the WebM
DASH Specification [1]. Some ideas are adopted from webm-tools project
[2].

[1]
https://sites.google.com/a/webmproject.org/wiki/adaptive-streaming/webm-dash-specification
[2]
https://chromium.googlesource.com/webm/webm-tools/+/master/webm_dash_manifest/

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

lavf/matroska: Add functions for WebM DASH Manifest

Add functions and logic to matroskadec for use by the WebM DASH Manifest
XML Muxer. The actual muxer is added in a future patch.

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Blackframe video filter now sets metadata accordingly.

the libavfilter/vf_blackframe.c filter now not only logs detected
values, but also sets frame metadata. Currently, only `pblack` value is set
but `SET_META` macro has been introduced to ease development in the future.

Signed-off-by: Stepan Bujnak <stepan.bujnak@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/hevc: treat current_sps like sps_list

This simplifies the management of current_sps
Fixes Ticket3458

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

avcodec/hevc_ps: prevent stale pointer in malloc failure case

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

avutil & avdevice: remove av_bprint_fd_contents()

MSVC does not allow passing file pointers between libs
This API can thus not work with MSVC and as it was very recently added
and its it was in no release its removial should not cause any problems

A better API will be implemented, but its not finished yet, this revert is
to avoid potentially blocking the release

Found-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

build: fix build with --disable-encoders

draw_edges() should probably be moved somewhere else to avoid
mpegvideo*enc* dependency to decoders.

ffmpeg_opt: remove intra_dc_precision, its handled by AVOptions

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

avcodec/mpegvideo_enc: make edge for interlaced mpeg2 encoding smaller

Fixes segfault
the size can probably be reduced further for the mpeg2 case

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

avcodec/mpegvideo_enc: check intra dc precission

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

avcodec/mpegvideo_enc: workaround applications specifying intra dc level based on 8 and othes based on 0bit

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

avcodec/options_table: add liberal limits to intra dc precission

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

avcodec/mpegvideo_enc: return proper error instead of failing assertion when max rate is not set

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

ffmpeg: Fix copying timebase to muxer context

Fixes Ticket3741

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

doc/utils: add missing `@c man end` title

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

hevc/rext: add support for Range extension tools

SPS features/flags:
- transform_skip_rotation_enabled_flag
- transform_skip_context_enabled_flag
- implicit_rdpcm_enabled_flag
- explicit_rdpcm_enabled_flag
- intra_smoothing_disabled_flag
- persistent_rice_adaptation_enabled_flag

PPS features/flags:
- log2_max_transform_skip_block_size
- cross_component_prediction_enabled_flag
- chroma_qp_offset_list_enabled_flag
- diff_cu_chroma_qp_offset_depth
- chroma_qp_offset_list_len_minus1
- cb_qp_offset_list
- cr_qp_offset_list
- log2_sao_offset_scale_luma
- log2_sao_offset_scale_chroma
(cherry picked from commit 005294c5b939a23099871c6130c8a7cc331f73ee)

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

hevc/rext: basic infrastructure for supporting range extension
- support for 4:2:2 and 4:4:4 up to 12 bits
- add a new profile for range extension
(cherry picked from commit d3c067fa65bbc871758d28aa07f54123430ca346)

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

hevc: separate residu and prediction (needed for Range Extension)
(cherry picked from commit 6b3856ef57d66f2e59ee61fd2eb5f83b6d0d7d4a)

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

hevc: use local variable for split_cu_flag
(cherry picked from commit ee71e9e9c12fc47856c452efb278f9f593a923ee)

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

hevc: move restore_tqb where it should be.
(cherry picked from commit 8fafc96a9805d11bfe32537c8f78a294a5844065)

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

hevc: simplify SAO computation, delay from one row its computation
(cherry picked from commit f2c5f647cec786df26f442a85e6d685a131a50c9)

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

RELEASE_NOTES: Mention Libav and add codename

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Adding Maintainer for dvbsubdec

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

hevc/cabac: add new context for new syntax elements related to Rext(cherry picked from commit 6d71e2394f52679cfc8b86fb5880f89e6bd311d4)

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

hevc: cleaning up, remove unused constants(cherry picked from commit 7eed32d076c57aa03011d65a64903e8bdb633978)

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

Merge commit 'f9900822fc5f0b0c7242ca318290c090bd5d0af0'

* commit 'f9900822fc5f0b0c7242ca318290c090bd5d0af0':
  fate: Use the correct, local path to samples for opus reference files

Conflicts:
tests/fate/opus.mak

See: ad7de82218e9ee2232e53ab49cda85767cf800e5
Merged-by: Michael Niedermayer <michaelni@gmx.at>

ffmpeg: Use av_stream_get_parser() to avoid ABI issues

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

avformat: add av_stream_get_parser() to access avformat AVParser

The AVStream.parser field is considered private and its location cannot be
preserved while preserving also ABI compatibility to libav, as libav added fields
before it.
Some tools like ffmpeg.c access this field though

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

fate: Use the correct, local path to samples for opus reference files

This fixes running fate in configs where the samples are located
in a different path on the target.

Signed-off-by: Martin Storsjö <martin@martin.st>

avformat/movenc: dont mark multichannel as mono tracks as containing the center channel

Fixes Ticket3727

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

RELEASE_NOTES: fill in lib versions

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

avformat/wavdec: add basic sanity check for the sample count

Fixes Ticket3708

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

Add a release note for 2.3

Based on a patch by Clément Bœsch <u@pkh.me>.

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

doc/filters: fixing typo

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

avformat/asfdec: Try to improve skip case

Fixes Ticket3761

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

Merge commit 'acf91215c74a91eb3b86af01dcb1d3c78d0e2310'

* commit 'acf91215c74a91eb3b86af01dcb1d3c78d0e2310':
  x86: dsputil: Avoid pointless CONFIG_ENCODERS indirection

Conflicts:
libavcodec/x86/dsputil_init.c
libavcodec/x86/dsputilenc_mmx.c

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

Merge commit 'a8552ee3eb335d2fd2d6c99363367a6090298f78'

* commit 'a8552ee3eb335d2fd2d6c99363367a6090298f78':
  ppc: dsputil: Coalesce all init files

Conflicts:
libavcodec/ppc/dsputil_altivec.h
libavcodec/ppc/dsputil_ppc.c

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

lavf: add samba protocol via libsmbclient

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

MAINTAINERS: Add ubitux for text subtitles

ubitux maintains them. It seems it was forgotten to update MAINTAINERs though

See: Re: [FFmpeg-devel] [PATCH] MAINTAINERS: add Subtitle maintainer
     Message-ID: <20140713120546.GC26262@leki>

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

AVFormat: LRC demuxer and muxer

Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

x86: dsputil: Avoid pointless CONFIG_ENCODERS indirection

The remaining dsputil bits are encoding-specific anyway.

armv6: Accelerate ff_imdct_half for general case (mdct_bits != 6)

The previous implementation targeted DTS Coherent Acoustics, which only
requires mdct_bits == 6. This relatively small size lent itself to
unrolling the loops a small number of times, and encoding offsets
calculated at assembly time within the load/store instructions of each
iteration.

In the more general case (codecs such as AAC and AC3) much larger arrays
are used - mdct_bits == [8, 9, 11]. The old method does not scale for
these cases, so more integer registers are used with non-unrolled versions
of the loops (and with some stack spillage). The postrotation filter loop
is still unrolled by a factor of 2 to permit the double-buffering of some
VFP registers to facilitate overlap of neighbouring iterations.

I benchmarked the result by measuring the number of gperftools samples
that hit anywhere in the AAC decoder (starting from aac_decode_frame())
or specifically in ff_imdct_half_c / ff_imdct_half_vfp, for the same
example AAC stream:

                  Before          After
                  Mean   StdDev   Mean   StdDev  Confidence  Change
aac_decode_frame  2368.1 35.8     2117.2 35.3    100.0%      +11.8%
ff_imdct_half_*   457.5  22.4     251.2  16.2    100.0%      +82.1%

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

x86/hevc_deblock: add ff_hevc_[hv]_loop_filter_luma_{8, 10}_sse2

Signed-off-by: James Almer <jamrial@gmail.com>
Reviewed-by: Kieran Kunhya <kierank@obe.tv>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

h264: fix direct temporal mvs for bottom-field-first poc order.

Fixes http://forum.doom9.org/showthread.php?t=170867.
Fixes: corrupt-1677.mkv
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

ppc: dsputil: Coalesce all init files

swscale/x86/rgb2rgb_template: fix 1 byte overread in yuyvtoyuv420 and uyvytoyuv420

might fix ticket 3410

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

avformat/asfdec: dvrms timestamps are pts not dts

Should fix Ticket3328

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

avformat/utils: do not wait for packets from discarded streams for genpts

Fixes long loop
Fixes Ticket3208

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

configure: fix alphabetical order of previous commit

Was requested in review

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

Add -Wformat and -Werror=format-security compiler flags

These are part of the hardening flags used by Debian.

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

fix spelling errors

Reviewed-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/mpegts: dont clear programs during probing

Fixes Ticket 3763

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