* commit '7040e479a1530b2eda4b89a182d5eb50a77bd907':
idcin: allow seeking back to the first packet
idcin: set AV_PKT_FLAG_KEY for video packets with a palette
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'ccc0ffb1ba3fc1adb05a9f56dfc26131e61db3fb':
idcin: set start_time and packet duration instead of manually tracking pts.
idcin: set channel_layout
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '12c2530b1d87fa94f81ea97df575b77c825e6f4f':
idcin: fix check for presence of an audio stream
idcin: validate header parameters
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'c88d245c9866e48cb8a238b7564964c1fcf3315f':
au: use ff_raw_write_packet()
au: set stream start time and packet durations
Conflicts:
libavformat/au.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'af68a2baae6761044cbed95575e8bcfebf55c6f1':
au: use %u when printing id and channels since they are unsigned
au: validate sample rate
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'c837b38dd33a11c3810e988a60193a858eb4f58c':
au: move skipping of unused data to before parameter validation
au: do not arbitrarily limit channel count
Conflicts:
libavformat/au.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '9a7b56883d1333cdfcdf0fa7584a333841b86114':
au: set bit rate
au: validate bits-per-sample separately from codec tag
rtpdec_vp8: Mark broken packets with AV_PKT_FLAG_CORRUPT
Conflicts:
libavformat/au.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Previously, for broken frames, we only returned the first partition
of the frame (we would append all the received packets to the packet
buffer, then set pkt->size to the size of the first partition, since
the rest of the frame could have lost data inbetween) - now instead
return the full buffered data we have, but don't append anything more
to the buffer after the lost packet discontinuity. Decoding the
truncated packet should hopefully get better quality than trimming out
everything after the first partition.
Signed-off-by: Martin Storsjö <martin@martin.st>
This is required by RFC 3550 (section 6.5):
The list of items in each chunk MUST be terminated by one or more
null octets, the first of which is interpreted as an item type of
zero to denote the end of the list.
This was implicitly added as padding before, unless the host name
length matched up so no padding was added.
This makes wireshark parse the packets properly if other RTCP items
are appended to the same packet.
Signed-off-by: Martin Storsjö <martin@martin.st>
Add some additional checks for EOF and print error messages on an incomplete
header or packet.
FATE reference updated for id-cin-video due to the demuxer no longer
returning a partial video packet at EOF.
* commit '1fb8f6a44f06e48386450fe0363aefc02583d24a':
x86: lavr: add SSE2 quantize() for dithering
doc/APIchanges: fill in missing dates and hashes.
rtpdec_vp8: Request a keyframe if RTP packets are lost
Conflicts:
doc/APIchanges
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '42805eda554a7fc44341282771531e7837ac72b7':
rtpdec: Store the dynamic payload handler in the rtpdec context
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '9c80ed836a511293f4cc3a858060969d32f2b1ce':
rtpdec_vp8: Avoid a warning about a possibly unused variable
rtpdec_vp8: Make sure the previous packet is returned
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '92e354b655613b88c3c202a7e19e7037daed37eb':
rtpdec_vp8: Set the timestamp when returning a deferred packet
hlsenc: Make the start_number option set the right variable
Conflicts:
libavformat/hlsenc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This allows the caller to either include them (and get more packets
decoded, but possibly some nonperfect frames), or discard them (by
setting fflags=discardcorrupt).
Signed-off-by: Martin Storsjö <martin@martin.st>
Sometimes the muxer modifies the packet, like for instance lavf/mp3enc
changing pkt->destruct in order to keep a copy. These changes must be
kept, even though the muxer behaviour is questionable. Regression since
0072116.
Fixes#2124.
This uses page duration instead of byte size to determine when to buffer
the page. Also, it tries to avoid continued pages by buffering the current
page if there are already packets in the page and adding the next packet
would require it to be continued on a new page. This can improve seeking
performance.
The default page duration is 1 second, which is much saner than filling
all page segments by default.
This sends NACK for missed packets and PLI (picture loss indication)
if a depacketizer indicates that it needs a new keyframe, according
to RFC 4585.
This is only enabled if the SDP indicated that feedback is supported
(via the AVPF or SAVPF profile names).
The feedback packets are throttled to a certain maximum interval
(currently 250 ms) to make sure the feedback packets don't eat up
too much bandwidth (which might be counterproductive). The RFC
specifies a more elaborate feedback packet scheduling.
The feedback packets are currently sent independently from normal
RTCP RR packets, which is not totally spec compliant, but works
fine in the environments I've tested it in. (RFC 5506 allows this,
but requires a SDP attribute for enabling it.)
Signed-off-by: Martin Storsjö <martin@martin.st>
The warning is a false positive, but I prefer actually initializing
it over masking it with av_uninit, since the code is not performance
critical.
Signed-off-by: Martin Storsjö <martin@martin.st>
This is a bug from c7d4de3d73 - if the previous frame wasn't
returned yet (due to missing the final packets), but we have
enough data of it to return the first partition, we write that into
pkt and set returned_old_frame. That commit forgot returning 0 for
the case where this current packet didn't have the end_packet flag
set.
Signed-off-by: Martin Storsjö <martin@martin.st>
* commit '8729698d50739524665090e083d1bfdf28235724':
rtsp: Recheck the reordering queue if getting a new packet
lavr: log channel conversion description for any-to-any functions
lavr: mix: reduce the mixing matrix when possible
lavr: cosmetics: reindent
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '9a00374cb4512a58a1fee366b850dfa87c76e1f3':
doc: Fix a few typos in the developer documentation
xwma: Remove unused variable
asfdec: Fix printf format string length modifier
Conflicts:
doc/developer.texi
Merged-by: Michael Niedermayer <michaelni@gmx.at>
If we timed out and consumed a packet from the reordering queue,
but didn't return a packet to the caller, recheck the queue status.
Otherwise, we could end up in an infinite loop, trying to consume
a queued packet that has already been consumed.
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
* commit '89b51b570daa80e6e3790fcd449fe61fc5574e07':
oggdec: free the ogg streams on read_header failure
Conflicts:
libavformat/oggdec.c
Original commit this was based on: (this merge just moves the function up)
commit 07a866282f
Author: Michael Niedermayer <michaelni@gmx.at>
Date: Tue Nov 20 15:12:37 2012 +0100
oggdec: fix memleak on header parsing failure
Fixes Ticket1931
Merged-by: Michael Niedermayer <michaelni@gmx.at>
The following out-of-memory check is broken.
*sorted_segments = av_mallocz(...);
if (!sorted_segments) { ... }
The correct NULL check should use *sorted_segments.
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
* qatar/master:
lavr: fix missing " in header documentation
aviobuf: Discard old buffered, previously read data in ffio_read_partial
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'e96406eda4f143f101bd44372f7b2d542183000a':
rtsp: Add support for depacketizing RTP data via custom IO
Conflicts:
libavformat/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '3f95f0dda55fca74b646937095a02a8fa9776622':
rtpdec: Move the URLContext used for RTCP RR out from the context, to a parameter
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Followup to http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/151321
patch by Reimar and Thomas Mundt fixes some AVC-Intra files from
different tickets.
It does not fix http://samples.ffmpeg.org/ffmpeg-
bugs/trac/ticket524/AVCI50.mov
Authors of this commit are: Reimar and Thomas Mundt
Patch and commit message mostly taken from ffmpeg-devel, mail by Carl
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
To use this, set sdpflags=custom_io to the sdp demuxer. During
the avformat_open_input call, the SDP is read from the AVFormatContext
AVIOContext (ctx->pb) - after the avformat_open_input call,
during the av_read_frame() calls, the same ctx->pb is used for reading
packets (and sending back RTCP RR packets).
Normally, one would use this with a read-only AVIOContext for the
SDP during the avformat_open_input call, then close that one and
replace it with a read-write one for the packets after the
avformat_open_input call has returned.
This allows using the RTP depacketizers as "pure" demuxers, without
having them tied to the libavformat network IO.
Signed-off-by: Martin Storsjö <martin@martin.st>
So far, aviocontexts are used either in pure-read or pure-write
mode - full read/write mode doesn't work well (and implementing it
is a much larger, not totally trivial change).
This patch allows using avio_read and ffio_read_partial on
read/write aviocontexts, where the read operations are passed
through directly unbuffered, while writes are buffered as usual.
This is enough to support the operations needed by packet based
data transfer like in udp/rtp, where aviocontext is the only
public API for hooking up custom IO.
Signed-off-by: Martin Storsjö <martin@martin.st>
The function find_things() in configure is confused by component
registration calls as part of multiline macros defining combined
component registration. Coalesce those macros into one line to
work around the issue.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Signed-off-by: Martin Storsjö <martin@martin.st>
The data does not contain timing or trailing line breaks anymore. In
addition to being less idiotic, it is consistent with other codecs and
thus allows more switches between formats and codecs. It also fixes the
issue of the trailing line returns being simple \n instead of CRLF in
the ASS rectangle dialogue (this is the reason of the FATE update).
"que" sounds like a slang word to me. This commit renames a few
variables, fix the comments and the logging messages (sometimes along
with small other typo fixes).
* qatar/master:
rtmp: Add support for limelight authentication
rtmp: Add support for adobe authentication
Conflicts:
Changelog
libavformat/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '33f28a3be3092f642778253d9529dd66fe2a014a':
rtmp: Add a function for writing AMF strings based on two substrings
rtmp: Return a proper error code in handle_invoke_error
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Limelight is a not too uncommon CDN. The authentication scheme is
pretty similar to the adobe authentication, but is even closer to
normal http digest authentication (but not close enough to warrant
sharing code) than the adobe version.
Signed-off-by: Martin Storsjö <martin@martin.st>
This is mostly used to authenticate the client when publishing.
Tested with wowza and akamai.
Some but not all servers support resending a new connect invoke
within the same connection, so always reconnect for sending a new
connection attempt. This matches what other applications do as well.
The authentication scheme is structurally pretty similar to http
digest authentication, but uses base64 instead of hex strings.
Signed-off-by: Martin Storsjö <martin@martin.st>
Current MicroDVD AVPackets contain timing information and trailing line
breaks. The data is now only composed of the markup data. Doing this
consistently between text subtitles decoders allows to use different
codec for various formats. For instance, MicroDVD markup is sometimes
found in some VPlayer files. Also, generally speaking, the subtitles
text decoders have no use of these timings (and they must not use them
since it would break any user timing adjustment).
Technically, this is a major ABI break. In practice, a mismatching
lavf/lavc will now error out for MicroDVD decoding. Supporting both
formats requires unnecessary complex and fragile code.
FATE needs update because line breaks in the ASS file were "\n" (because
that's what is used in the original file). ASS format expect "\r\n" line
breaks; this commit fixes this issue. Also note that this "\r\n"
trailing need to be moved at some point from the decoders to the ASS
muxer.
Note that the linebreaks text codec option (but not the feature) has
been removed; its main goal was to allow demuxers to configure the text
decoder (and not meant to be used by users), but the AVOption are not a
viable solution. This is solved differently in this commit.
This commit also makes sure the extradata and subtitle_header are NUL
terminated, without taking into account the trailing '\0' in account in
the size.
At the same time, it should fix 'warning: dereferencing type-punned
pointer will break strict-aliasing rules' warning for compilers who
don't consider uint8_t** and char** compatibles.
* commit '30a76487304e7250294c9c0e9fa179bf07fd822a':
hlsenc: make segment number unsigned
hlsenc: make EXT-X-MEDIA-SEQUENCE always increase
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '9b1370aced385698bc783747917544ab69ecb373':
hlsenc: do not add timestamps in different timebases
hlsenc: use the correct AV_TIME_BASE macro
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '0448f26c97c5ab4858d31e456a4f1738ae783242':
hlsenc: keep the playlist to the correct number of items
hlsenc: use the segment filename in the playlist entry
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '6dd93ee6f1b050ad7c4b247899e83efa293ee405':
hlsenc: check append_entry return value
hlsenc: use the basename to generate the list entries
avstring: add av_basename and av_dirname
Conflicts:
Changelog
doc/APIchanges
libavutil/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Some wav files report a data size that is bigger than the actual file size.
Fall back to estimation from bitrate in such cases.
Fixes ticket #2065.
Signed-off-by: James Almer <jamrial@gmail.com>
Also fixes linking in various configs with only individual parts enabled
because the RTP muxer chaining code depends on the general RTP code,
which is now accounted for.
Since 83cab07 audio stream time bases are based on SampleRate, not EditRate.
This fixes trac ticket #2029 and a few seeking issues.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
If s->filename doesn't contain any period/filename extension to strip
away, the buffer will be too small to fit both strings. This isn't
any buffer overflow since the concatenation uses av_strlcat with
the right buffer size.
Signed-off-by: Martin Storsjö <martin@martin.st>
* commit '90c784cc13f6bf21a8eb69f3b88b50c7a70f6c59':
rtpdec: Pass the sequence number to depacketizers
configure: Make avconv depend on null, anull and resample filters
Conflicts:
configure
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'a925f723a915bc0255e2673f8817af5212131763':
rtp: Don't read priv_data unless it is allocated
flvenc: Check whether seeking back to the header succeeded
sapenc: Pass the title on to the chained muxers
Conflicts:
libavformat/flvenc.c
libavformat/sapenc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This is built on the assumption that the first partition of each
VP8 packet is essential for decoding any later packet - if this
partition is broken/missed, the arithmetic coder gets out of sync
and decoding the bitstream in further packet ends up with total
garbage. If packets of a frame are lost, make sure the first
partition is intact (return only this part of the packet, nothing
else), otherwise stop returning data until the next keyframe is
received.
Alternatively, one would simply not return any packets at all
until the next keyframe, if packet loss is detected.
Signed-off-by: Martin Storsjö <martin@martin.st>
it causes problems (incorrectly detect TS discontinuities)
with a brokan TS file (test-audio-broken.ts)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
After demuxing, data and side are merged. Before decoding, they are
split. Encoder will perform with data and side split. This means that a
muxer can receive split data (after encoding) but also merged data (if
called directly after demuxing). This commit makes sure data and side
are split for the muxer.
This makes all users of rtpenc_chain (rtsp muxer, sapenc, mov
rtp hinting) work again, broken since 8034130e0.
Signed-off-by: Martin Storsjö <martin@martin.st>
* commit 'c661cb6672af5ebcb900ec8766b24761bd2ab011':
cmdutils: pass number of groups to split_commandline().
mov: handle h263 and flv1 for codec_tag 'H','2','6','3'
h264: fix sps parsing for SVC and CAVLC 4:4:4 Intra profiles
Conflicts:
libavcodec/h264_ps.c
libavformat/isom.c
libavformat/mov.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
The FLV muxer tries to update the header in write_trailer, which is
impossible if writing to a pipe or network stream. Don't write header
data if seeking to the header fails.
Signed-off-by: Martin Storsjö <martin@martin.st>
They are completely superfluous when using av_rescale_q_rnd().
Call av_rescale_rnd() using what used to be the numerators instead.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The sample in https://bugzilla.libav.org/show_bug.cgi?id=393 and
samples/F4V/H263_NM_f.mp4 both have codec_tag H263 for different
codecs. H263 is apparently used by Flash Media Server for Sorensen
Spark videos.
Patch based on commit 5442083b1c by
Carl Eugen Hoyos. Fixes bug 393.
* commit 'c35f0e8495e34c2082dcde805e9323c9f6a4cb0a':
au: Reorder code so that both muxer and demuxer are under #ifdefs
fate: Move RALF test into lossless audio group
cosmetics: Use consistent names for multiple inclusion guards.
Conflicts:
libavformat/au.c
tests/fate/lossless-audio.mak
tests/fate/real.mak
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Pass "title" metadata field to av_sdp_create (as in RTP muxer) in SAP
muxer for correct
session name in SAP SDP announcements.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'f322b2073581119de5da74f92a03309a36891cfa':
lavr: only save/restore the mixing matrix if mixing is being done
rtpdec_vp8: Cosmetics: Fix bad alignment/indentation
rtpenc: Allow including a SDES/CNAME block in RTCP SR packets
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '65e053271a98f7acf3ef6b412998cfcb44a8eef8':
rtpenc_vp8: Include the picture number in VP8 packets
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This makes it easier for receivers to decide what to do if data
is lost.
Refactor calculating the max payload size, to avoid hardcoding the
header size in too many places, reducing the number of lines that
have to be touched if the header is adjusted further.
Signed-off-by: Martin Storsjö <martin@martin.st>
The FLV muxer tries to update the header in write_trailer, which is
impossible if writing to a pipe or network stream. Don't write header
data if seek to header fails.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* qatar/master:
aacdec: Fix an off-by-one overwrite when switching to LTP profile from MAIN.
x86inc: fix stack alignment on win64
rtpproto: Remove unused defines
Conflicts:
libavcodec/aacdec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'f3f60dcbdd6ff2201526a603fe28293975bb7667':
rtpdec_mpeg4: Cosmetic cleanup
rtpdec: Cosmetic cleanup of the header
rtpdec: Get rid of a useless _s suffix on a struct name
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'e70c5b034c4787377e82cab2d5565486baec0c2a':
swfdec: do better validation of tag length
Make LOCAL_ALIGNED syntactically similar on all systems
Conflicts:
libavformat/swfdec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Avoids trying to read a packet with 0 or negative size.
Avoids a potential infinite loop due to seeking backwards.
Partially based on a patch by Michael Niedermayer.
The new options reset the timestamps at each new segment, so that the
generated segments will have timestamps starting close to 0.
It is meant to address trac ticket #1425.
* qatar/master:
rtpdec: Remove an outdated todo comment
rtpdec: Rename a static variable to normal naming conventions
sh4: dsputil: remove duplicate of ff_gmc_c()
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This comment was added in e309128f, in 2002, and has been brought
along since then more or less unmodified.
The first point of the todo was implemented in dbf30963 in 2006,
the second one is not relevant to rtpdec.c (brought along from
rtp.c in 8eb793c4 in 2008) but would be more relevant to the
rtp muxer, although it isn't a good idea anyway.
Signed-off-by: Martin Storsjö <martin@martin.st>
* commit '18e6f087c4a50bede8449ee164778945480be50c':
img2: document the options available
hls: improve options description
hls: use a meaningful long name
hls: add start_number option
h264: check for invalid zeros_left before writing
Conflicts:
doc/demuxers.texi
doc/muxers.texi
Merged-by: Michael Niedermayer <michaelni@gmx.at>
The values compared here can be more than INT64_MAX apart. Since the
difference is always positive, converting to uint64_t before subtracting
gives the correct result without overflows.
Signed-off-by: Mans Rullgard <mans@mansr.com>
* commit '096abfa15052977eed93f0b5e01afd2d47c53c1f':
parser: fix large overreads
bitstream: add get_bits64() to support reading more than 32 bits at once
arm: detect cpu features at runtime on Linux
Conflicts:
libavcodec/parser.c
libavformat/mpegts.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Also remove a duplicate function in the MPEG-TS demuxer.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
* commit 'd7d6efe42b0d2057e67999b96b9a391f533d2333':
h264: check sps.log2_max_frame_num for validity
mov: validate number of DataReferenceBox entries against box size
mov: compute avg_frame_rate only if duration is known
flac: change minimum and default of lpc_passes option to 1
Conflicts:
libavcodec/h264_ps.c
libavformat/mov.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
While here remove pts/dts code, it is apparently not needed and cause
problems for demuxers that will use such function.
Signed-off-by: Paul B Mahol <onemda@gmail.com>
This prevents inconsistencies leading to out of array accesses.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The previous code computes the offset by reversing the growth
of the allocated buffer size: it is complex and did lead to
inconsistencies when the size limit is reached.
Fix trac ticket #1991.
This fixes a regression where this count became 1 with
HPM-GC\ EXPORT\ FCP-1A-AVCI100-1080i25-001.mxf
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
It is broken, and results will be messed up when seeking.
This also fix duration displayed for streams when using -c copy.
Signed-off-by: Paul B Mahol <onemda@gmail.com>
* qatar/master:
ppc: always use pic for shared libraries
build: cosmetics: Move CONFIG_RTPDEC entry to a more suitable place
fate: ea, h264: prettyprinting and ordering cosmetics
Conflicts:
tests/fate/ea.mak
tests/fate/h264.mak
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* qatar/master:
fate: fft: Fix libavcodec dependency
build: Make the ISMV muxer select the MOV muxer
configure: move arm arch extensions to a separate variable
Conflicts:
configure
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This function is almost identical to lavf/assdec:read_seek2(). It
performs a generic seek for text subtitles demuxers for the new seeking
API.
The only difference with assdec:read_seek2 is the ts_diff being
unsigned to avoid overflows.
The seek callback in the ASS demuxer will be removed when it is
redesigned to use FFDemuxSubtitlesQueue.
Without this exception files with ".gif" extension by default
recognized as input suitable for image2 demuxer rather than gif.
In order to pass image through gif demuxer it was necessary
to use -f gif option.
This change affected 'make fate' test results because previously
image2 demuxer and gif decoder took only first frame of multiframe
test data, which is no longer true with gif demuxer.
Signed-off-by: Vitaliy E Sugrobov <vsugrob@hotmail.com>
Gif demuxer is capable of extracting multiple frames from gif file.
In conjunction with gif decoder it implements support for reading
animated gifs.
Demuxer has two options available to user: default_delay and min_delay.
These options are for protection from too rapid gif animations. In practice
it is standard approach to slow down rendering of this kind of gifs. If you try to
play gif with delay between frames of one hundredth of second (100fps) using
one of major web browsers, you get significantly slower playback,
around 10 fps. This is because browser detects that delay value is less than some
threshold (usually 2 hundredths of second) and reset it to default value (usually 10
hundredths of second, which corresponds to 10fps). Manipulating these options user
can achieve the same effect during conversion to some video format. Otherwise user
can set them to not protect from rapid animations at all.
The other case when these options necessary is for gif images encoded according to
gif87a standard since prior to gif89a there was no delay information included in file.
Bump lavf minor version.
Signed-off-by: Vitaliy E Sugrobov <vsugrob@hotmail.com>
* commit '9d46eaec7a90bd8f5cd9e45398c6d17804182320':
build: The FLAC encoder also depends on the flacdsp code
img2: K&R formatting cosmetics
h264: check context state before decoding slice data partitions
flashsv: make sure data for zlib priming is available
Conflicts:
libavcodec/Makefile
libavformat/img2.c
libavformat/img2dec.c
libavformat/img2enc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'e4d349b4014ee2a03f521027e0bd1ace4a9e60bd':
fate: h264: Add dependencies
fate: ea: Add dependencies
fate: Do not unconditionally run libavutil tests
rtpenc_chain: Remove unused variable
nuv: check for malloc failure when allocating extradata
nuv: use the stream indices generated by avformat_new_stream()
Conflicts:
tests/fate/ea.mak
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '5c7bf2dddee5bdfa247ff0d57cb8a37d19077f66':
lavf: move nuv fourcc audio tags from riff to nuv
lavf: add a common function for selecting a pcm codec from parameters
Conflicts:
libavformat/internal.h
libavformat/mov.c
libavformat/riff.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Also make sure extradata is freed in the case where multiple
NUV_EXTRADATA frame types are found. This may not happen in practice,
but it could happen in a malformed stream, which would lead to a memleak
if not handled.
This fixes correctly storing and identifying PCM in nut.
Based on patch by Luca Barbato
Found-by: durandal_1707
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '6e5cdf26281945ddea3aaf5eca4d127791f23ca8':
h264: check ref_count validity for num_ref_idx_active_override_flag
h264: add missing new line to log message
dcadec: skip QMF on unused channels
wavenc: write fact chunk sample count at the correct file position
riff: do not add empty metadata tags in INFO chunk
Conflicts:
libavcodec/dcadec.c
libavcodec/h264.c
libavformat/riff.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '3c370f5abc55739a261534b9f9bdc739cedbbbb9':
riff: only warn on a bad INFO chunk code size instead of failing
configure: Add separate list for libraries and use where appropriate
x86: float_dsp: add SSE version of vector_fmul_scalar()
Conflicts:
configure
libavformat/riff.c
libavutil/x86/float_dsp.asm
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Should fix compilation on native windows
We could also use _access() and literal numbers as flags but i cant test it
and the compilation failure should be fixed ASAP
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes Ticket1904
This should work on windows, but if not please contact me ASAP
i have another idea on how to solve this without access() if that
really doesnt work on windows.
Strongly based on patch by divVerent
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes curruption of metadata in the INFO chunk.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
Scaling the denominator instead of the numerator if it is too large
loses precision. Fixes an assert caused by a negative frame duration in
the fuzzed sample nasa-8s2.ts_s202310.
CC: libav-stable@libav.org
Current code would incorrectly process e.g. 'ff 00 ff 00 ff' to
'ff ff ff', while it should be 'ff ff 00 ff'.
Fixes Bug 395.
CC: libav-stable@libav.org
PIX is an image file format that was used by the BRender 3d engine.
Signed-off-by: Aleksi Nurmi <aleksi.nurmi@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes ticket #1935.
Signed-off-by: Peter Ross <pross@xvid.org>
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The following error handling is broken due to signedness.
int file_size;
uint32_t tag_bytes;
int64_t tag_start;
...
tag_start = file_size - tag_bytes - APE_TAG_FOOTER_BYTES;
if (tag_start < 0) { ... }
Note that tag_bytes is unsigned, which makes the right-hand side of
`tag_start = ...' unsigned, too. The 32-bit unsigned value is then
zero-extended to 64 bits. Therefore, tag_start must be non-negative,
and the check (tag_start < 0) is always false, which breaks the error
handling. This patch fixes the check.
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Without the information, application may choose audio from one variant
and video from another variant, which leads to fetch two variants from
network. This enables av_find_best_stream() to find matching audio and
video streams, so that only one variant is fetched from network.
Signed-off-by: LYF <yefei.li@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
From the M3U8 specification:
|The EXT-X-MEDIA-SEQUENCE tag indicates the sequence number of the first
|URI that appears in a Playlist file.
Previously it was using the list index number. Also remove now unused
list_count field.
The segment muxer presumes the use of AVFMT_GLOBALHEADER, ssegment should
be use in case of formats which requires no global headers.
Regression introduced when merging
0826d8513d.
The muxer add them automatically, so this avoid having a bunch of line
breaks all over the output files. One '\n' is still kept/added because
the lavc subrip decoder seems to have trouble with line ending abruptly
(it doesn't flush correctly the tags). This bug is harmless but should
be fixed; though, this doesn't look like a trivial change. When this bug
gets fixed, we can consider removing the '\n' at the end of the packet.
The 2048B buffer limit was also removed while moving to AVBPrint API.
Note that this doesn't really matter since the decoder is limited as
well.
Some muxers do not allow stream if codec_tag is incompatible.
Sometimes the passed input codec's codec_tag is not compatible with the
output muxer.
Because the codec_tag field of the segment muxer cannot be set, ffmpeg.c
doesn't know how to handle these cases.
Signed-off-by: ChanMin Kim <kcm1700@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
I guess the user expects to see the stream with the highest bitrate, not with
the most frames, this is especially useful for multi bitrate streams.
This patch changes av_find_best_stream to select the stream based on a number
of conditions, the first condition has the highest priority, the last condition
has the lowest:
1) Select the stream with the highest FFMIN(5, codec_info_nb_frames) value
2) Select the stream with the highest bitrate
3) Select the stream with the highest codec_info_nb_frames
4) Select the first stream
Signed-off-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
I was unable to find a file that needs this hack, if you have one please
contact us!
Fixes out of array accesses.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Matrox XMIO capture boards write files with major brand "JUNK"
and compatible brand "qt " that contain QuickTime version 1
audio fields.
Fixes ticket #1881.
* qatar/master:
bgmc: Fix av_malloc checks in ff_bgmc_init()
rtp: set the payload type as stream id
Conflicts:
libavformat/rtpenc_chain.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '3b4296f41473a5b39e84d7a49d480624c9c60040':
avformat: clarify stream id for muxing
fate: Add dependencies for aac, alac, amrnb, amrwb, atrac tests
ppc: do not pass redundant compiler flags
avutil: change GET_UTF8 to not use av_log2()
segment: fix NULL pointer dereference in seg_write_header()
Conflicts:
tests/fate/aac.mak
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Since the pointer `oc' is NULL, oc->oformat->name will cause a null
pointer dereference. This patch changes it to seg->oformat->name.
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Martin Storsjö <martin@martin.st>
* qatar/master: (24 commits)
yop: set channel layout
wtv: set channel layout for mpeg audio
westwood_aud: set channel layout
wc3movie: set channel layout
tmv: set channel layout
tiertexseq: set channel layout
swfdec: set channel layout
sol: set channel layout
smacker: set channel layout
siff: set channel layout
sierravmd: set channel layout
rtpdec_amr: set channel layout
rsodec: set channel layout
rmdec: set channel layout for RA version 3
qcp: set channel layout
psxstr: set channel layout
omadec: set channel layout
oggparsespeex: validate channel count and set channel layout
nuv: set channel layout
mxg: set channel layout
...
Conflicts:
libavformat/swfdec.c
libavformat/wtv.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'ef1b23ad21e3f12fc4ff2a73a6d4d4cd9d630c4b': (21 commits)
jvdec: set channel layout
iss: set channel layout
ipmovie: set channel layout
iff: set channel layout
idroqdec: set channel layout
gxfdec: set channel layout when applicable
gsmdec: set channel layout
flvdec: set channel layout
dv: set channel layout
dsicin: set channel layout
daud: set channel layout
cdxl: set channel layout
bmv: set channel layout
bink: set channel layout
bfi: set channel layout
bethsoftvid: set channel layout
apc: set channel layout
amr: set channel_layout
ppc: replace pointer casting with AV_COPY32
ppc: fix some unused variable warnings
...
Conflicts:
libavformat/amr.c
libavformat/iff.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
