This is possible now that the next-API is gone.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Signed-off-by: James Almer <jamrial@gmail.com>
The user has no business modifying the underlying AVCodec.
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
If allocating the AVFrame to contain a decoded frame fails, the AVPacket
containing the data intended to be decoded leaks. This commit fixes
this.
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
The movie and amovie filters currently use two packets. One of the two,
pkt0, is the owner of the returned packet; it is also the destination
packet for av_read_frame(). The other one pkt is initially (i.e. after
av_read_frame()) a copy of pkt0; copy means that the contents of both
are absolutely the same: They both point to the same AVBufferRef and the
same side data. This violation of the refcounted packet API is only
possible because pkt is not considered to own its data. Only pkt0 is
ever unreferenced.
The reason for pkt's existence seems to be historic:
The API used for decoding audio (namely avcodec_decode_audio4()) could
consume frames partially, i.e. it could return multiple frames for one
packet and therefore it returned how much of the input buffer had been
consumed. The caller was then supposed to update the packet's data and
size pointer to reflect this and call avcodec_decode_audio4() again with
the updated packet to get the next frame.
But before the introduction of refcounted AVPackets where knowledge and
responsibility about what to free lies with the underlying AVBuffer such
a procedure required a spare packet (or one would need to record the
original data and size fields separately to restore them before freeing
the packet; notice that this code has been written when AVPackets still
had a destruct field). But these times are long gone, so just remove the
secondary AVPacket.
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
av_read_frame() already returns clean packets on error.
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This reverts commit abc884bcc0.
This patch was pushed without actual review.
An actual review would have revealed that the switch to activate
was not done correctly because the logic between request_frame()
and frame_wanted is not as direct with filters with multiple
outputs than with a single output.
It will allow to refernce it as a whole without clunky macros.
Most of the changes have been automatically made with sed:
sed -i '
s/-> *in_formats/->incfg.formats/g;
s/-> *out_formats/->outcfg.formats/g;
s/-> *in_channel_layouts/->incfg.channel_layouts/g;
s/-> *out_channel_layouts/->outcfg.channel_layouts/g;
s/-> *in_samplerates/->incfg.samplerates/g;
s/-> *out_samplerates/->outcfg.samplerates/g;
' src/libavfilter/*(.)
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Despite its name, this function is not part of the public API, as
formats.h, the header containing its declaration, is a private header.
The formats API was once public API, but that changed long ago
(b74a1da49d, the commit scheduling it to
become private, is from 2012). That avfilter_make_format64_list() was
forgotten is probably a result of the confusion resulting from the
libav-ffmpeg split.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
avdevice_register_all() is still required to register devices into
lavf (this is required due to lavd being somewhat of a hack).
Signed-off-by: Josh de Kock <josh@itanimul.li>
* commit 'ce6f780bc6656ad3895f81a988b239ad3c8af4b8':
configure: Add missing asyncts filter, movie filter, and output example deps
Merged-by: James Almer <jamrial@gmail.com>
Currently, if the movie source filter is used and a seek_point is
specified on a file that has a negative start time, ffmpeg will fail.
An easy way to reproduce this is as follows:
$ ffmpeg -vsync passthrough -filter_complex 'color=d=10,setpts=PTS-1/TB' test.mp4
$ ffmpeg -filter_complex 'movie=filename=test.mp4:seek_point=2' -f null -
The problem is caused by checking for int64_t overflow the wrong way.
In general, to check whether a + b overflows, it is not enough to do:
a > INT64_MAX - b
because b might be negative; the correct way is:
b > 0 && > a > INT64_MAX - b
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Many of the functions from avfilter/formats can return errors, usually AVERROR(ENOMEM).
This propagates the return values.
All of these were found by using av_warn_unused_result, demonstrating its utility.
Tested with FATE. I am least sure of the changes to avfilter/filtergraph,
since I don't know what/how reduce_format is intended to behave and how it should
react to errors.
Fixes: CID 1325680, 1325679, 1325678.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Previous version Reviewed-by: Nicolas George <george@nsup.org>
Previous version Reviewed-by: Clément Bœsch <u@pkh.me>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This variable is used only inside one function.
There is no need to store it in context.
This also may prevent crush by double free frame.
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
It was broken since 7e350379f8.
Also fix warnings:
libavfilter/src_movie.c: In function ‘describe_frame_to_str’:
libavfilter/src_movie.c:392:5: warning: ‘type’ is deprecated (declared at ./libavutil/frame.h:313) [-Wdeprecated-declarations]
libavfilter/src_movie.c:408:9: warning: ‘type’ is deprecated (declared at ./libavutil/frame.h:313) [-Wdeprecated-declarations]
* commit 'eeeb5c291d3f78eaade5b99c2614c7cab0e9be79':
vsrc_movie: do not free avoption variables in uninit()
Conflicts:
libavfilter/src_movie.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Makes it easier to understand that there is no difference in init
callback for movie and amovie. Also saves a few lines of code.
Signed-off-by: Alexander Strasser <eclipse7@gmx.net>
* commit 'b3ea76624ad1baab0b6bcc13f3f856be2f958110':
vf_aspect: use the name 's' for the pointer to the private context
Remove commented-out debug #define cruft
Conflicts:
libavcodec/4xm.c
libavcodec/dvdsubdec.c
libavcodec/ituh263dec.c
libavcodec/mpeg12.c
libavfilter/avfilter.c
libavfilter/vf_aspect.c
libavfilter/vf_fieldorder.c
libavformat/rtmpproto.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
