Also, do not allow seek-by-byte, as there is no way to find the next packet
boundary.

Also, use 1 / sample_rate for audio stream time_base.

chunk_size is unsigned 32-bit, but av_get_packet() takes a signed int as the
packet size.

Avoids using unsupported parameters and signed integer overflows.

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

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

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

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

The following variants are implemented:
lipshitz noise shaping dither
shibata noise shaping dither
low shibata noise shaping dither
high shibata noise shaping dither
f-weighted noise shaping dither
modified-e-weighted noise shaping dither
improved-e-weighted noise shaping dither

Data tables taken from SOX

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

Also do not unnecessarily skip 0 bytes.

It is already set by av_get_packet() even for partial reads.

Nothing in the AU specification sets a limit on channel count.
We only need to avoid an overflow in the packet size calculation.

* qatar/master:
  xan: Convert to bytestream2
  oggenc: add a page_duration option and deprecate the pagesize option
  x86: lavr: add SSE2/AVX dither_int_to_float()

Conflicts:
	libavcodec/xan.c
	libavformat/oggenc.c

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

* commit '1fb8f6a44f06e48386450fe0363aefc02583d24a':
  x86: lavr: add SSE2 quantize() for dithering
  doc/APIchanges: fill in missing dates and hashes.
  rtpdec_vp8: Request a keyframe if RTP packets are lost

Conflicts:
	doc/APIchanges

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

* commit '86d9181cf41edc3382bf2481f95a2fb321058689':
  rtpdec: Support sending RTCP feedback packets

Conflicts:
	libavformat/version.h

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

* commit '42805eda554a7fc44341282771531e7837ac72b7':
  rtpdec: Store the dynamic payload handler in the rtpdec context

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

* commit '9c80ed836a511293f4cc3a858060969d32f2b1ce':
  rtpdec_vp8: Avoid a warning about a possibly unused variable
  rtpdec_vp8: Make sure the previous packet is returned

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

* commit '92e354b655613b88c3c202a7e19e7037daed37eb':
  rtpdec_vp8: Set the timestamp when returning a deferred packet
  hlsenc: Make the start_number option set the right variable

Conflicts:
	libavformat/hlsenc.c

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

This allows the caller to either include them (and get more packets
decoded, but possibly some nonperfect frames), or discard them (by
setting fflags=discardcorrupt).

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Diego Biurrun <diego@biurrun.de>

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

Regression since: ea6da80
Fixes Ticket2123

I cannot reproduce any regressions by flipping the wrong condition
to how it should have been.

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

Sometimes the muxer modifies the packet, like for instance lavf/mp3enc
changing pkt->destruct in order to keep a copy. These changes must be
kept, even though the muxer behaviour is questionable. Regression since
0072116.

Fixes #2124.

This uses page duration instead of byte size to determine when to buffer
the page. Also, it tries to avoid continued pages by buffering the current
page if there are already packets in the page and adding the next packet
would require it to be continued on a new page. This can improve seeking
performance.

The default page duration is 1 second, which is much saner than filling
all page segments by default.

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

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

This fixes a infinite loop with -loop and -vframes

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

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

This sends NACK for missed packets and PLI (picture loss indication)
if a depacketizer indicates that it needs a new keyframe, according
to RFC 4585.

This is only enabled if the SDP indicated that feedback is supported
(via the AVPF or SAVPF profile names).

The feedback packets are throttled to a certain maximum interval
(currently 250 ms) to make sure the feedback packets don't eat up
too much bandwidth (which might be counterproductive). The RFC
specifies a more elaborate feedback packet scheduling.

The feedback packets are currently sent independently from normal
RTCP RR packets, which is not totally spec compliant, but works
fine in the environments I've tested it in. (RFC 5506 allows this,
but requires a SDP attribute for enabling it.)

Signed-off-by: Martin Storsjö <martin@martin.st>