Use avio functions instead of bytestream ones (also drops dependency on
lavc and removes a bunch of warnings).
Drop custom version of avio_get_str16 and use that instead.

Tested on mewmew-ssa.avi sample.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 47fdf00a)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 19711af5)

Fixes issue 2475.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit b3190529)

Makes playing QDMC files in MPlayer work when using the libavformat demuxer.
Problem was that the extradata was not passed from demuxer to decoder.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit ed19fafd)

NASM versions older than 2.08 fail to build ffmpeg with several
"error: operation size not specified" errors but this is not caught in
configure.

Fix that by checking if "pextrd [eax], xmm0, 1" works in configure.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 48545a8f)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

In some places, dvbsubdec passes improper input buffer size to
bitstream reading functions, not accounting for reading pointer
updates.

Fixed by using buffer_end - buffer pointer instead of fixed buffer length.
Signed-off-by: Jindrich Makovicka <makovick@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 84ae8936)

(cherry picked from commit ae0f8a1a)

(cherry picked from commit efdd67cb)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit c2fcd0a7)

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit ad3cffb6)

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 90441276)

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit fe174fc8)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit f4a86bc9)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 5a6de4e7)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 74571e33)

wtv: do not use flag in stream_guid chunk to determine if stream is valid, as this method is unreliable

This fixes roundup issue 2556.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit e4f85b84)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit edbb0c07)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit e8dcd730)

Using a preset file caused the address of a stack variable to be stored
in opt_names/values. This change causes the strings to be dup'd then
freed in uninit_opts.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 60ff9de6)

Add free to uninit_opts and relocate opt_names to same
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 3a6a9cdf)

No behavior change; this makes DTS reliable with the next patch.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 6b474953)

This fixes roundup issue 2583.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 185a155e)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 5306bf41)

If required, the caller can do this itself. ff_write_chained rescales
timestamps as necessary, and all current callers of rtpenc_chain
use ff_write_chained, making this timebase copy unnecessary.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 397ffde1)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit b22dbb29)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit ff197489)

This function is useful for freeing data structures allocated by
muxers, which currently have to be freed manually by the caller.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit f124b087)

This avoids having the chained AVStream->codec point to the same
AVCodecContext owned by the outer AVStream. The downside is that
changes to the AVCodecContext made after calling av_write_header
cannot be detected automatically within the chained muxer.

This avoids having to manually unlink the chained AVStream->codec
by setting it to null before freeing the chained muxer via generic
freeing functions.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 1338dc08)

(cherry picked from commit 8a2c99b4)

Convert hev_thresh logic to a LUT, simplify mbedge_lim calculation.
(cherry picked from commit 79dec154)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 290849e2)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 523d9407)

(cherry picked from commit a1b227bb)