Allows to process CENC-encrypted media segments.
Option arg syntax is same as that for option decryption_key in MOV demuxer

Add an AVIF muxer by re-using the existing the mov/mp4 muxer.

AVIF Specification: https://aomediacodec.github.io/av1-avif

Sample usage for still image:
ffmpeg -i image.png -c:v libaom-av1 -still-picture 1 image.avif

Sample usage for animated AVIF image:
ffmpeg -i video.mp4 animated.avif

We can re-use any of the AV1 encoding options that will make
sense for image encoding (like bitrate, tiles, encoding speed,
etc).

The files generated by this muxer has been verified to be valid
AVIF files by the following:
1) Displays on Chrome (both still and animated images).
2) Displays on Firefox (only still images, firefox does not support
   animated AVIF yet).
3) Verified to be valid by Compliance Warden:
   https://github.com/gpac/ComplianceWarden

Fixes the encoder/muxer part of Trac Ticket #7621
Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>

Add a parameter to omit seq header when generating the av1C atom.

For now, this does not change any behavior. This will be used by a
follow-up patch to add AVIF support.
Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>

Add a parameter to libaom-av1 encoder to enforce some of the single
image constraints in the AV1 encoder. Setting this flag will limit
the encoder to producing exactly one frame and the sequence header
that is produced by the encoder will be conformant to the AVIF
specification [1].

Part of Fixing Trac ticket #7621

[1] https://aomediacodec.github.io/av1-avifSigned-off-by: : Vignesh Venkatasubramanian <vigneshv@google.com>

Fix for f125c504, requested_sample_rate
and such should be used.
Signed-off-by: Diederick Niehorster <dcnieho@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Bitrates of akiyo changed slightly.

Reset curframe whenever we generate a keyframe.
Use -g instead of -keyint_min.

This fixes output when trimming output samples.

Signed-off-by: Wang Cao <wangcao@google.com>

Fix ticket: 9238
In parse_playlist, the discont_program_date_time should be used after
EXT-X-PROGRAM-DATE-TIME tag parsed.

Tested-by: pero
Reviewed-by: Zhao Zhili <zhilizhao@tencent.com>
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>

The general demuxing API uses bitstream filters to extract extradata
and the muxing API uses them in order to transform packets into
the format desired by the target format. Therefore FFStream contains
pointers to AVBSFContexts and lavf/internal.h includes lavc/bsf.h.

Yet actually, only a few files files are supposed to use these,
namely avformat.c, demux.c and mux.c. For all the other files,
it should be an opaque type that they should not touch and that
they need not know anything about. This can be achieved by not
including these headers and using the structs instead of the
corresponding typedefs.
This also forces translation units that really use the BSF API
themselves to include lavc/bsf.h directly instead of relying on
indirect inclusions (a few other files also use the BSF API;
they already abided by this).
Of course, it also avoids unnecessary rebuilds when bsf.h changes.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

It is demuxer-only.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

The general decoding API uses bitstream filters and an AVFifo
and therefore AVCodecInternal contains pointers to an AVBSFContext
and to an AVFifo and lavc/internal.h includes lavc/bsf.h and
lavu/fifo.h.
Yet actually, only two files are supposed to use these, namely
avcodec.c and (mainly) decode.c. For all the other files,
it should be an opaque type that they should not touch and that
they need not know anything about. This can be achieved by not
including these headers and using the structs instead of the
corresponding typedefs.
This also forces translation units that really use the BSF
and the FIFO APIs themselves to include the relevant headers
directly instead of relying on indirect inclusions (up until now,
even avcodec.c and decode.c relied on fifo.h to be included
by internal.h).
Of course, it also avoids unnecessary rebuilds when bsf.h or fifo.h
change.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

Left shifts of signed types are UB unless the results fit
into the type. (Furthermore the value to be shifted need to be
nonnegative.)
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

sdl2 recently changed their versioning, moving the patch level to minor level
https://github.com/libsdl-org/SDL/commit/cd7c2f1de7d9e418bb554047d714dd7cacc020ff
and have said that they will instead ship sdl3.pc for 3.0.0

Fixes ticket 9768
Signed-off-by: Christopher Degawa <ccom@randomderp.com>
Signed-off-by: Gyan Doshi <ffmpeg@gyani.pro>

ff_http_get_shutdown_status is unused after ticket 9010 fixed.
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>

There is no such thing.

None of its fields have meaningful values at that point that would need
to be copied to frame thread workers.

Several encoders (roqvideo, svq1, snow, and the mpegvideo family)
currently call ff_get_buffer(). However this function is written
assuming it is called by a decoder. Though nothing has been obviously
broken by this until now, that may change in the future.

To avoid potential future issues, introduce a simple encode-specific
wrapper around avcodec_default_get_buffer2() and enforce its use in
encoders.

It is not used in the encoder.

av_get_pix_fmt_name() is used in an ff_tlog(), which is only
compiled if TRACE is defined. Fixes a regression caused by
f2b79c5b.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

They test the new pgs_frame_merge BSF.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

PGS segments must be merged to one packet for muxing to mkv
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

Required to remux m2ts to mkv
Minor changes and porting to FFBitStreamFilter done by the committer.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

Also silence initial block frames.

These are not pure avio-functions, but auxiliary AVFormatContext
functions.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>