Avoid a possible null pointer dereference.

CC: libav-stable@libav.org
Bug-Id: CID 1135769

CC: libav-stable@libav.org
Bug-Id: CID 732284

CC: libav-stable@libav.org
Bug-Id: CID 732198

Prevent possible memory leaks.

Connect to nginx and request a non-existent resource to
trigger the issue.

CC: libav-stable@libav.org
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Uwe L. Korn <uwelk@xhochy.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Casting the left-most byte to unsigned avoids an undefined
result of the shift by 24 if bit 7 is set.

yuvPlanartouyvy_c and yuvPlanartoyuy2_c are affected.

CC: libav-stable@libav.org
Bug-Id: CID 732281 / CID 732282

Also add a note about SNDCTL_DSP_GETFMTS which may fail even if OSS is
available.

CC: libav-stable@libav.org
Bug-Id: CID 1238992
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

CC: libav-stable@libav.org
Bug-Id: CID 732225

CC: libav-stable@libav.org
Bug-Id: CID 1231986

CC: libav-stable@libav.org
Bug-Id: CID 1087076

CC: libav-stable@libav.org
Bug-Id: CID 1087086

And validate its size while at it.

CC: libav-stable@libav.org
Bug-Id: CID 1244189

Currently, this option is accessed through AVCodecContext.mb_threshold,
which originally controlled reusing MB data when transcoding mpeg to
mpeg. Since the libvpx meaning is completely different from the original
mpegvideo meaning, it is better to use a separate private option for
this.

The rounding used in the PTS calculations in filter_frame() does
not actually match the number of samples output by the resampler.
This leads to off-by-1 errors in the timestamps indicating gaps and
underruns, even when the input timestamps are all contiguous.

Bug-Id: 753
Signed-off-by: Anton Khirnov <anton@khirnov.net>

It is a remnant of the old interrupt callback API.

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

Some RTMP commands need the most recent timestamp as their parameter, so
keep track of it. This must be the most recent one and not e.g. the max
received timestamp as it can decrease again through seeking.
Signed-off-by: Martin Storsjö <martin@martin.st>

For both audio and video.

For streams which contain DRC metadata, the FDK decoder is able to
control rendering of the decoded output. The rendering parameters
are detailed in fdk_aac_dec_options [].

The default behavior is left up to the decoder.
Signed-off-by: Martin Storsjö <martin@martin.st>

The FDK decoder is capable of producing mono and stereo downmix from
multichannel streams. These streams may contain metadata that control
the downmix process. The decoder requires an Ancillary Buffer in order to
correctly apply downmix in streams containing downmix Metadata. The
decoder does not have an API interface to inform of the presence of
Metadata in the stream, and therefore the Ancillary Buffer is always
allocated whenever a downmix is requested.

When downmixing multichannel streams, the decoder requires the output
buffer in aacDecoder_DecodeFrame call to be of fixed size in order to
hold the actual number of channels contained in the stream. For example,
for a 5.1ch to stereo downmix, the decoder requires that the output buffer
is allocated for 6 channels, regardless of the fact that the output is in
fact two channels.

Due to this requirement, the output buffer is allocated for the maximum
output buffer size in case a downmix is requested (and also during
decoder init). When a downmix is requested, the buffer used for output
during init will also be used for the entire duration the decoder is open.
Otherwise, the initial decoder output buffer is freed and the decoder
decodes straight into the output AVFrame.
Signed-off-by: Martin Storsjö <martin@martin.st>

In (non-live) streams with no metadata, the duration of a stream can
be retrieved by calling the RTMP function getStreamLength with the
playpath. The server will return a positive duration upon the request if
the duration is known, otherwise either no response or a duration of 0
will be returned.
Signed-off-by: Martin Storsjö <martin@martin.st>

Packets that contain a number as a result to a rtmp function call are
structured the same way (String, Number, Null, Number). This new method
also includes more bounds checks to better handle packets that are not
structured as expected.
Signed-off-by: Martin Storsjö <martin@martin.st>

The OptionDef arrays are terminated with a { NULL } element not NULL.

CC: libav-stable@libav.org
Bug-Id: CID 703769

Work as the other free()-like functions.

Bug-Id: CID 1087081
CC: libav-stable@libav.org

CC: libav-stable@libav.org
Bug-Id: CID 1224275

CC: libav-stable@libav.org
Bug-Id: CID 1005311

The element is always valid.

CC: libav-stable@libav.org
Bug-Id: CID 732276

CC: libav-stable@libav.org
Bug-Id: CID 733793

CC: libav-stable@libav.org
Bug-Id: CID 1238794

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

CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>

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