buffer during entropy decoding.

The pointer address could overflow, which would likely segfault. Instead set
the context error flag to indicate that the decoder tried to read past the
end of the packet data.

avoids implementation-defined unsigned-to-signed conversion and simplifies
the bounds checking.

The variable is not used anymore at that point.

This prevents errors and/or invalid writes in the next decode call due to
s->samples still being negative.

break some excessively long lines and remove space after '*'

This is already checked by avcodec_decode_audio3().

The dca parser needs to check that the framesize is actually of a complete
frame, and not of a partial DTS-HD frame, which is not constant size, and
thus the check would fail.
(cherry picked from commit ebc0ccb9af)

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

(cherry picked from commit ea36f60493)

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

(cherry picked from commit 42e78d2296)

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

Specifically av_update_cur_dts(), av_seek_frame_binary() and
av_gen_search().

They are not supposed to be called outside lavf.

The documentation for CODEC_CAP_PARSE_ONLY and AVCodecContext.parse_only
indicates that they are utilized through avcodec_parse_frame(), which was
never actually implemented.

Its functionality was removed several years ago, so it doesn't do anything.
AVCodecContext.frame_number could serve the same purpose if someone
wants to debug the frame count.

On frame decoding failure, return an error if the frame is the same size as
the whole packet, otherwise just log an error message and return the number
of bytes consumed.

* qatar/master:
  lavc: remove "legacy" mpegvideo decoder.
  iv8: assemble packets to return complete frames
  pulse: documentation
  pulse: introduce pulseaudio input
  remove the zork pcm seek test

Conflicts:
	configure
	libavdevice/Makefile
	libavdevice/alldevices.c
	libavdevice/avdevice.h
	libavdevice/pulse.c

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

Prevent error condition in case sample_rate is unset or set to a negative
value. In particular, fix divide-by-zero error occurring in ffmpeg due to
sample_rate set to 0 in output_packet(), in code:

                ist->next_pts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
                    ist->st->codec->sample_rate;

Fix trac ticket #324.

This atom typically is used for a track title.
(cherry picked from commit a356137816)

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

(cherry picked from commit df342c91e6)

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

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

they wont conflict when they get added to the fork with randomly changed order and values.
Also add duplicate codec_ids to allow maintaining compatibility.

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

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

(cherry picked from commit 4266191919)

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

Fixes Ticket577

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

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

* luzero/pulse:
  pulse: set the device from the avformat filename

Conflicts:
	libavdevice/pulse.c

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

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

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