This is mostly to serve as a reference example on how to segment
the output from the mp4 muxer, capable of writing the segment
list in four different ways:
- SegmentTemplate with SegmentTimeline
- SegmentTemplate with implicit segments
- SegmentList with individual files
- SegmentList with one single file per track, and byte ranges
The muxer is able to serve live content (with optional windowing)
or create a static segmented MPD.
In advanced cases, users will probably want to do the segmenting
in their own application code.
Signed-off-by: Martin Storsjö <martin@martin.st>
A flag "dash" is added, which enables the necessary flags for
creating DASH compatible fragments.
When this is enabled, one sidx atom is written for each track
before every moof atom.
Signed-off-by: Martin Storsjö <martin@martin.st>
By calling this after writing the moof the first time (for
calculating the moof size), we can avoid intermediate storage
of tfrf_offset in MOVTrack.
Signed-off-by: Martin Storsjö <martin@martin.st>
When writing fragmented streams with an empty initial moov,
we won't have any samples in any tracks when writing the
moov atom, thus trust that any tracks that are added actually
will be present.
Signed-off-by: Martin Storsjö <martin@martin.st>
* commit 'c64f3615118d757dcf76040fe5407bf2b3883206':
flvenc: Send new metadata when FLAG_METADATA_UPDATED is set.
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '4d0cd5f58c892276716f46f4b2702915e5018215':
flvenc: move metadata updates into a single function
Conflicts:
libavformat/flvenc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This is a generic solution that will not reqiore modifications when new options are added.
This also fixes problem with current implementation when qmin or qmax=-1.
Only 8 bits was sent and read back as 255.
Fixes#1275Fixes#1461
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
In http_open_cnx, the patch restores the AVDictionary if connection needs to be re-tried
because of a authentication/redirect status code.
Previously, if a 401/407/30x status code was encountered, http_open_cnx would restart at the redo label, but any options
used by the underlying protocol would be missing because they were removed by the first attempt.
Signed-off-by: Brandon Lees <brandon@n-hega.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '3a6bb9735053c453f806ceab1d91124648d90aca':
Icecast: Send 100-continue header if possible
See: 17dc39e76b
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This is needed because Icecast since version 2.4.1 doesn't default
to audio/mpeg anymore. AVOption default not used here, since a later
check if -content_type is set is performed and would break.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This allows for proper error reporting. Only do
this for non-legacy requests as only Icecast >2.4.0
will reply with a proper status.
Libav seems to accept both, 100 and 200 status codes, but
let's stay close to spec.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
According to the DASH spec, Representation IDs should be unique
across all adaptation sets. Fixing that and updating the fate
reference file to reflect this change.
Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Using 100-continue ffmpeg will only send data if the server confirms it,
so if there is an error with auth or mounpoint, this allows that it is
properly reported to the user. Else ffmpeg sends data and just quits at
some point without an error message.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
use a default (audio/mpeg for historical reason) if none. Required since Icecast 2.4.1
Not using AVOption default because this breaks content-type warnings (needs to
detect if no type was set by the user)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This allows selecting if the demuxer should consider all streams to be
found after the first PMT and add further streams during decoding or if it rather
should scan all that are within the analyze-duration and other limits
Fixes Ticket3762
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '8cb7b7b461b52898765b38e3eff68c0ce88347f3':
movenc: Avoid leaking locally allocated data when returning on errors
Conflicts:
libavformat/movenc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This avoids a potential crash if writing a fragmented psp mp4
(which probably is only a hypothetical scenario).
Signed-off-by: Martin Storsjö <martin@martin.st>
In matroska_read_seek(), |tracks| is assigned at the begining of the function.
However, functions like matroska_parse_cues() could reallocate the tracks so
that |tracks| can get invalidated.
This CL assigns |tracks| only before we use it so that it won't be invalidated.
BUG=427266
TEST=Test case in associated bug passes now.
Change-Id: I9c7065fe8f4311ca846076281df2282d190ed344
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '1d8a0c1b43e58332a3a15c67d4adc161713cade8':
movenc: Allow to request not to use edit lists
Conflicts:
libavformat/movenc.c
See: 537ef8bebf
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '897d5c3a4296f3da80b8699d1487328ca2de8e55':
lavf: Print a warning if failed to avoid negative timestamps when requested
Conflicts:
libavformat/mux.c
See: ec6a5fc6cc
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Previously we wrote decoding timestamps here, while the specs
say it should be presentation timestamps.
Signed-off-by: Martin Storsjö <martin@martin.st>
When using the new first_trun flag instead of checking the track id,
we don't need to have a special case for the separate_moof flag
any longer.
This simplifies the complicated codepath ever so slightly.
Signed-off-by: Martin Storsjö <martin@martin.st>
In this case, shift tracks to start from zero instead (potentially
stretching the first sample in tracks that start later than the
first one).
Some software does not support edit lists at all, the adobe flash
player seems to be one of these. This results in AV sync errors when
edit lists are used to adjust AV sync.
Some players, such as QuickTime, don't respect the duration for
audio packets, so if an audio track starts later than the video
track and the first audio sample gets a duration longer than the
actual amount of data in it, the result will be out of sync.
Based on patches by Michael Niedermayer.
Signed-off-by: Martin Storsjö <martin@martin.st>
This is the same logic as is invoked on AVFMT_TS_NEGATIVE,
but which can be enabled manually, or can be enabled
in muxers which only need it in certain conditions.
Also allow using the same mechanism to force streams to start
at 0.
Signed-off-by: Martin Storsjö <martin@martin.st>
* commit '56dc46a1893251e74be1ad63e54fb38d754bb1fe':
riffenc: do not fall back on AVCodecContext.frame_size for MP3
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '91e8d2eb1f7bf3af949008b106ec1ca037b88b0e':
lavf: use the format context strict_std_compliance instead of the codec one
Conflicts:
libavformat/mux.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '2f3fadfbe3c6ad52fad5c614b6067c5401227959':
lavc,lavf: switch to the new vorbis parse API
Conflicts:
libavformat/oggparsevorbis.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '5e80fb7ff226f136dbcf3fed00a2966bf8e9bd70':
lavc: add a public API for parsing vorbis packets.
Conflicts:
doc/APIchanges
libavcodec/Makefile
libavcodec/version.h
libavcodec/vorbis_parser.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '6896f95b2483e52e717e2c75a4fd24fcb0e14b67':
vorbis_parser: add an AV prefix to VorbisParseContext
Conflicts:
libavcodec/vorbis_parser.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
The only parameters needed by the demuxers are the sample rate and sample
count, which can be trivially extracted manually, without resorting to
an avpriv function.
It will not be set unless the codec context is used as the encoding
context, which is discouraged. For MP2, av_get_audio_frame_duration()
will already set the frame size properly. For MP3, set the frame size
explicitly.
It is never an error if this method failed. If rt->live was
explicitly set to 0 (known to be a recorded file), print it
as a warning, otherwise print it as a debug message.
Based on a patch by Michael Niedermayer.
Signed-off-by: Martin Storsjö <martin@martin.st>
TDRL is what we used as a replacement of TYER, and, according to
http://id3.org/id3v2.4.0-changes :
TYER - Year
This frame is replaced by the TDRC frame, 'Recording time'
[F:4.2.5].
So change TDRL usages to TDRC.
Fixes ticket #3694
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This way if we by chance run into a valid PMT we have a more complete
set of streams, also do not reset streams in case we run into a worse
PMT
Fixes Ticket4046
alternatively Ticket4046 could be closed as invalid or wontfix as it contains
some PMTs which lack the 2 subtitle streams
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '2f221b6a9365aa400061e16266f2d1242f7169f8':
movenc: Define the flag bits using shifts instead of as decimal numbers
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Avoid the creation of files which cannot be successfully decoded by
ffmpeg, for example generated with:
ffmpeg -f lavfi -i sine -af "aselect='not(between(t,100,500))',aresample=min_comp=0.001:min_hard_comp=0.100000" -acodec pcm_s16le -t 1000 -y out_audio.flv
* commit 'aae6b3b918b4133b8cc2d1631196c1d406d0351a':
movenc: Don't write any iso brands in ismv files
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'c55d1d382cd41345a79782ace41f9b43f45dca9a':
movenc: Don't write any tfdt atom for ismv files
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '00c67fe1d0bc7c2ce49daac9c80ea39d5a663b73':
movenc: Write a 0 duration in mdhd and tkhd for an empty initial moov
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'cf589faa5b7aed3bb38e08dcd00bd951e69686d1':
movenc: Add a flag for using default-base-is-moof in tfhd atoms
Conflicts:
libavformat/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
The tfdt atom shouldn't be needed in those cases, we already
write tfxd atoms for ismv anyway, which is roughly equivalent.
This avoids having to declare the iso6 brand for ismv files.
Signed-off-by: Martin Storsjö <martin@martin.st>
ISO/IEC 14496-12:2012/Cor 1:2013 is explicit about how this should be
handled. All zeros doesn't mean that the full file has got a zero
duration, only that the track samples described within the initial moov
have got zero duration. An all ones duration means an indeterminate
duration.
Keep writing a duration consisting of all ones for the ISM mode -
older windows media player versions won't play a file if this is
zero. (Newer windows media player versions play either version fine.)
Signed-off-by: Martin Storsjö <martin@martin.st>
* commit '600d5ee6b12bad144756b0772319bb04796bc528':
movenc: Signal iso6 in compatible_brands when using tfdt
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'b2b79eca6fae2466a53c5daa163a37e2474364fc':
movenc: Don't check the custom IO flag when using faststart
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '573b1de2d7f1db71030f91ecdded7d0bc071f6b6':
movenc: Don't use track_id to decide which track is the first in a moof
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Similarly to the omit_tfhd_offset flag added in e7bf085b, this
avoids writing absolute byte positions to the file, making them
more easily streamable.
This is a new feature from 14496-12:2012, so application support
isn't necessarily too widespread yet (support for it in libav was
added in 20f95f21f in July 2014).
Signed-off-by: Martin Storsjö <martin@martin.st>
The custom IO flag actually never is set for muxers, only for
demuxers, so the check was pointless (unless a user intentionally
would set the flag to signal using custom IO).
Signed-off-by: Martin Storsjö <martin@martin.st>
If one track doesn't have any samples within a moof, no traf/trun
is written for it. When the omit_tfhd_offset flag is set, none
of the tfhd atoms have any base_data_offset set, and the implicit
offset (end of previous track fragment data, or start of the moof
for the first trun) is used.
Signed-off-by: Martin Storsjö <martin@martin.st>
* commit 'f64d7e919eabd427f3e6dd4a1219e448c78deb42':
mtv: improve header check and avoid division by zero
Conflicts:
libavformat/mtv.c
See: 8b9b6332df
Merged-by: Michael Niedermayer <michaelni@gmx.at>
add support for AVC Intra 50 720p and 1080p without SPS/PPS header in mxf and mov demuxers. I got the SPS/PPS tables from libbmx.
Reviewed-by: tomas.hardin@codemill.se
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
To keep h264 parsing simple and fast, I used the framesize for selecting the right Panasonic codec label. The framesize is fixed for Panasonic AVC Intra.
This patch only supports AVCI50/100. But in all flavours, i.e. with no SPS/PPS in header.
Reviewed-by: tomas.hardin@codemill.se
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
FooterPartition offset specified in RIP takes precedence over any value written
in PartitionPacks. This fixes the same issue f06f6da tries to fix without
introducing an extra variable.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Without this patch the demuxer can get stuck in a loop if PreviousPartition
points somewhere where there's no PartitionPack, or if klv_read_packet() syncs
back up to the current partition.
This should fix Ticket3278 properly and unbreak Ticket4040.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This check is redundant with the previous commit but it provides
better error messages and feedback while the previous commit
ensures that var_read_string() doesnt return uninitialized arrays
if it itself is feeded with an invalid size possibly through a
different future codepath.
Fixes: asan_heap-oob_49b1e5_12_011.movie
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes out of array read
Fixes: asan_heap-oob_49b1e5_12_011.movie
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
should be the raw amount of pixels (for example 3840x1080 for full HD side by
side) and the DisplayWidth/Height in pixels should be the amount of pixels for
one plane (1920x1080 for that full HD stream)."
So, move the aspect ratio check in the mkv_write_stereo_mode() function
and always write the embl when stereo format and/or aspect ration is set.
Also add a few comments to that function.
CC: libav-stable@libav.org
Found-by: Asan Usipov <asan.usipov@gmail.com>
* commit '82ee7d0dda0fec8cdb670f4e844bf5c2927ad9de':
Use gmtime_r instead of gmtime and localtime_r instead of localtime
Conflicts:
libavformat/mov.c
libavformat/mxfenc.c
libavformat/wtvdec.c
libavutil/parseutils.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '9dcf2397219ca796f0fafce2a703770d6fd09920':
lavf: Check the return value of strftime
Conflicts:
libavformat/wtvdec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '851ace79a307bea54b44bd6f7ecd3b7861c28ec6':
wtv: Avoid needlessly calling gmtime twice with the same argument
Conflicts:
libavformat/wtvdec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
While a standalone implementation is nice, we already depend on
gmtime and gmtime_r in a number of places.
Signed-off-by: Martin Storsjö <martin@martin.st>
gmtime isn't thread safe in general. In msvcrt (which lacks gmtime_r),
the buffer used by gmtime is thread specific though.
One call to localtime is left in avconv_opt.c, where thread safety
shouldn't matter (instead of making avconv depend on the libavutil
internal header).
Signed-off-by: Martin Storsjö <martin@martin.st>
If the buffer provided to strftime is too small, the buffer contents
are indeterminate - it does not guarantee actually null terminating
the buffer.
Signed-off-by: Martin Storsjö <martin@martin.st>
* commit '0b66fb4505e0bb43de3797f63f3290f0188d67cc':
flac_picture: prevent a possible out of bound write
This is only partly merged, the condition this checks for
is impossible to be true as it would imply avio_read() to
read more than the size passed to it
See: 731f7eaaad
Merged-by: Michael Niedermayer <michaelni@gmx.at>
None of these are likely unless the user is writing a file with two billion
streams or a duration of around two months.
CC: libav-stable@libav.org
Bug-Id: CID 700568 / CID 700569 / CID 700570 /
CID 700571 / CID 700572 / CID 700573
The new function wraps errno so that its value is correctly reported
when other functions overwrite it (eg. in case of logging).
CC: libav-stable@libav.org
Bug-Id: CID 1135748
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
This has also been independently found and fixed similarly by carl in
f4a3bbf4a3cd375121ea2495817f3e50e831ed48
The 2nd magic check is taken from carls implementation
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The quality scale field is only supposed to be present if the fourth bit
is set. In practice, lame always sets it, but other tools might not.
CC:libav-stable@libav.org
The ones left using av_gettime are NTP timestamps (for RTCP,
which is specified to send the actual current realtime clock
in RTCP SR packets), and the NUT muxer timestamper, which is
documented as using wallclock time.
Signed-off-by: Martin Storsjö <martin@martin.st>
Previously, AVERROR(EIO) was returned. Now the value is passed from
lower level, thus it is possible to distinguish ECONNREFUSED, ETIMEDOUT,
ENETUNREACH etc.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Previously, AVERROR(EIO) was returned on failure of
http_open_cnx_internal(). Now the value is passed to upper level, thus
it is possible to distinguish ECONNREFUSED, ETIMEDOUT, ENETUNREACH etc.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
