sanilraut [Wed, 28 Mar 2018 11:52:27 +0000 (19:52 +0800)]
avformat/dashdec: Support signaling of last segment number
Last segment indicated by mpd is not parsed.
Example stream: http://dash.akamaized.net/dash264/TestCasesIOP41/LastSegmentNumber/1/manifest_last_segment_num.mpd
This patch supports parsing of Supplemental Descriptor with @schemeIdUri set to http://dashif.org/guide-
lines/last-segment-number with the @value set to the last segment number.
Mark Thompson [Sat, 24 Mar 2018 13:56:16 +0000 (13:56 +0000)]
vf_avgblur_opencl: Don't run kernel on pixels outside the image
The output frame size is larger than the image containing a subsampled
plane - use the actual size of the image being written rather than the
dimensions of the intended output frame.
Gyan Doshi [Wed, 21 Mar 2018 13:29:33 +0000 (18:59 +0530)]
avformat/segafilm - fix keyframe detection and set packet flags
Streams from a Segafilm cpk file can't be streamcopied because
keyframe flag isn't correctly set in stream index and
said flag is never conveyed to the packet
Fixes #7091
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: James Almer <jamrial@gmail.com>
wm4 [Sat, 24 Mar 2018 14:41:54 +0000 (15:41 +0100)]
movtextdec: fix handling of UTF-8 subtitles
Subtitles which contained styled UTF-8 subtitles (i.e. not just 7 bit
ASCII characters) were not handled correctly. The spec mandates that
styling start/end ranges are in "characters". It's not quite clear what
a "character" is supposed to be, but maybe they mean unicode codepoints.
FFmpeg's decoder treated the style ranges as byte idexes, which could
lead to UTF-8 sequences being broken, and the common code dropping the
whole subtitle line.
Change this and count the codepoint instead. This also means that even
if this is somehow wrong, the decoder won't break UTF-8 sequences
anymore. The sample which led me to investigate this now appears to work
correctly.
wm4 [Sat, 24 Mar 2018 12:37:00 +0000 (13:37 +0100)]
avcodec: add a subcharenc mode that disables UTF-8 check
This is for applications which want to explicitly check for invalid
UTF-8 manually, and take actions that are better than dropping invalid
subtitles silently. (It's pretty much silent because sporadic avcodec
error messages are so common that you can't reasonably display them in a
prominent and meaningful way in a application GUI.)
Jan Ekström [Fri, 23 Mar 2018 12:41:28 +0000 (14:41 +0200)]
avformat/hlsenc: use stream's maximum bit rate as fall-back advertised rate
Enables having proper bit rate values being written into the master
playlist in case of hard-constrained VBR where the maximum bit
rate utilized is known before hand.
Does the same thing as movenc.c, for example.
Signed-off-by: Jan Ekström <jan.ekstrom@aminocom.com>
James Almer [Fri, 23 Mar 2018 21:16:11 +0000 (18:16 -0300)]
avcodec/bsf: make sure the AVBSFInternal stored packet is reference counted
Some bitstream filters may buffer said packet in their own contexts
for latter use. The documentation for av_bsf_send_packet() doesn't
forbid feeding it non-reference counted packets, which depending on
the way said packets were internally buffered by the bsf it may
result in the data described in them becoming invalid or unavailable
at any time.
This was the case with vp9_superframe after commit e1bc3f4396, which
was then promptly fixed in 37f4a093f7 and 7a02b364b6. It is still the
case even today with vp9_reorder_raw.
With this change the bitstream filters will not have to worry how to
store or consume the packets fed to them.
Reviewed-by: wm4 <nfxjfg@googlemail.com> Signed-off-by: James Almer <jamrial@gmail.com>
Mark Thompson [Sun, 11 Mar 2018 21:12:29 +0000 (21:12 +0000)]
hwcontext_vaapi: Add support for legacy DRM mapping
The old vaAcquireBufferHandle() API works in fewer cases and provides
less information than the current vaExportSurfaceHandle(), but it exists
on older versions and is already used by the OpenCL code.
Mark Thompson [Mon, 19 Mar 2018 22:52:51 +0000 (22:52 +0000)]
lavfi/opencl: Avoid deprecation warnings when built with post-1.2 headers
The intended target is OpenCL 1.2, so disable warnings for APIs deprecated
after that. This primarily applies to clCreateCommandQueue(), we can't use
the replacement clCreateCommandQueueWithProperties() because it was
introduced in OpenCL 2.0.
Also remove some unnecessary includes from overlay and program filters so
that the define is available at the right moment.
Mark Thompson [Mon, 19 Mar 2018 22:52:30 +0000 (22:52 +0000)]
lavfi/opencl: Derive global work size from plane image sizes
Add a new function to find the global work size given the output image and
the required block alignment, then use it in the overlay, program and unsharp
filters. Fixes the overlay and unsharp filters applying the kernel to
locations outside the frame when subsampled planes are present.
Jörn Heusipp [Wed, 21 Feb 2018 11:11:48 +0000 (12:11 +0100)]
avformat/libopenmpt: Probe file format from file data if possible
When building with libopenmpt 0.3, use the libopenmpt file header
probing functions for probing. libopenmpt probing functions are
allocation-free and designed to be as fast as possible.
For libopenmpt 0.2, or when libopenmpt 0.3 file header probing cannot
probe successfully due to too small probe buffer, test the filename
against the file extensions supported by the libopenmpt library that
is actually linked, instead of relying on a hard-coded file extension
list. File extension testing is also allocation-free and designed to
be fast in libopenmpt. Avoiding a hard-coded file extension list is
useful because later libopenmpt versions will likely add support for
more module file formats.
libopenmpt file header probing is tested regularly against the FATE
suite and other diverse file collections by libopenmpt upstream in
order to avoid false positives.
FATE passes with './configure --enable-libopenmpt' as well as with
'./configure --enable-libopenmpt --enable-libmodplug'.
libopenmpt probing adds about 5%..10% cpu time (depending on precise
usage pattern and host CPU and compiler version used for libopenmpt)
compared to all current internal FFmpeg probing functions combined in
tools/probetest for all of its module formats combined (currently 41
modules formats in libopenmpt 0.3.4 and 234 file formats in FFmpeg).
Signed-off-by: Jörn Heusipp <osmanx@problemloesungsmaschine.de> Reviewed-by: Josh de Kock <josh@itanimul.li> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Gyan Doshi [Thu, 15 Mar 2018 11:15:51 +0000 (16:45 +0530)]
ffmpeg.c - drain all decoded frames during stream_loop flush
When a decoded stream is being looped, after each post-EOF rewind,
decoders are flushed in seek_to_start(). This only drains 1 frame, and
thus the output has a few frames missing at the tail of each iteration
except the last.
With this patch, process_input is looped till process_input_packet
reaches EOF.
Fixes #7081
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Mark Thompson [Sun, 18 Mar 2018 18:34:38 +0000 (18:34 +0000)]
hwcontext_vaapi: Always include DRM hwcontext header
Fixes building with VAAPI but not libdrm, which was broken by 389f4c3e0d0a26a7d3d2696017384874cf5e93fa. Just unconditionally include
the header, since it doesn't depend on libdrm being present.
Mark Thompson [Tue, 6 Mar 2018 18:49:27 +0000 (18:49 +0000)]
lavc: Add filter_units bitstream filter
This can remove units with types in or not in a given set from a stream.
For example, it can be used to remove all non-VCL NAL units from an H.264 or
H.265 stream.
Mark Thompson [Sun, 11 Mar 2018 14:40:23 +0000 (14:40 +0000)]
cbs_h264: Fix overflow in shifts
The type of the result of a shift operation is unaffected by the type of
the right operand, so some existing code overflows with undefined behaviour
when the element length is 32. Add a helper macro to calculate the maximum
value correctly and then use it everywhere this pattern appears.
Found-by: Andreas Rheinhardt <andreas.rheinhardt@googlemail.com>
Martin Vignali [Sat, 17 Mar 2018 20:07:17 +0000 (21:07 +0100)]
fate/hapqa_extract : add test for hapqa_extract bsf
test extract color and alpha
with the three main kind of hap frame :
- no snappy compression
- snappy compression and one chunk
- snappy compression and several chunks (16 here)
like the bsf filter need to be used with vtag and encoder edition
also test the information of the target mov for color and alpha
If the string consists entirely of whitespace, this could in theory
continue to write '\0' before the start of the memory allocation. In
practice, it didn't really happen: the generic HTTP header parsing code
already skips leading whitespaces, so the string is either empty, or
consists a non-whitespace. (The generic code and the cookie code
actually have different ideas about what bytes are whitespace: the
former uses av_isspace(), the latter uses WHITESPACES. Fortunately,
av_isspace() is a super set of the http.c specific WHITESPACES, so
there's probably no case where the above assumption could have been
broken.)
wm4 [Thu, 8 Mar 2018 03:47:40 +0000 (04:47 +0100)]
http: avoid out of bound accesses on broken Set-Cookie headers
It's trivial to craft a HTTP response that will make the code for
skipping trailing whitespace access and possibly overwrite bytes outside
of the memory allocation. Why this can happen is blindingly obvious: it
accesses cstr[strlen(cstr)-1] without checking whether the string is
empty.
projects / ffmpeg / log