qt-faststart is terribly slow when the input file and the output file
are on a slow disk like a SD card. By increasing the copy_buffer from
1K to 32M I decreased the processing time on a sample file from
1600 seconds to 4 seconds. The timing difference is during 'copying
rest of file'.

S:\SD_VIDEO\PRG001>e:\utils\qt-faststart 00005.mp4 5.mp4
ftyp          0 32
free         32 8
mdat         40 13744391
moov   13744431 141848
 patching stco atom...
 patching stco atom...
 writing ftyp atom...
 writing moov atom...
 copying rest of file...

Execution time: 1576.259 s

S:\SD_VIDEO\PRG001>s:\utils\qt-faststart 00005.mp4 5.mp4
ftyp          0 32
free         32 8
mdat         40 13744391
moov   13744431 141848
 patching stco atom...
 patching stco atom...
 writing ftyp atom...
 writing moov atom...
 copying rest of file...

Execution time: 3.846 s
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

iv decrypt handling code needs to be executed regardless of CONFIG_SMALL
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This fix a bunch of "assignment from incompatible pointer type" warnings
with GCC.

Also fix some dates (use the commit date instead of the author date).

Note that a lavf bump was missing so I'm using 54.28.100 as a reference.

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

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

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

this simplifies things are avoids a temporary
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Based on test code by: Giorgio Vazzana <mywing81@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

In CBC mode, when src=dst and we are decrypting a block different
from the first one, we need to save the current block of ciphertext
(which will constitute the initialization vector for the next block)
before we overwrite it.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

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

Found in http://www.makemkv.com/download/ffmpeg/mmffmpeg-1.7.7.patch.gz

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

* qatar/master:
  h264: avoid stuck buffer pointer in decode_nal_units
  mpeg12: fix the semantics of the int* parameter of decode()

Conflicts:
	libavcodec/mpeg12.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'd9a2e87b':
  mpeg12: move mpeg_decode_frame() lower
  avsdec: Set dimensions instead of relying on the demuxer.
  wmalosslessdec: Reset put bit buffer when num_saved_bits is reset.

Conflicts:
	libavcodec/avs.c
	libavcodec/mpeg12.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'd05f72c7':
  dfa: improve boundary checks in decode_dds1()
  wmalosslessdec: Fix reading too many bits in decode_channel_residues()
  wmalosslessdec: fix a get_bits(0) in decode_ac_filter
  wmalosslessdec: make MCLMS arrays big enough for what is written into them.
  indeo4/5: check empty tile size in decode_mb_info().
  ivi_common: make ff_ivi_process_empty_tile() static.
  indeo5: check tile size in decode_mb_info().
  indeo3: fix out of cell write.

Conflicts:
	libavcodec/dfa.c
	libavcodec/indeo3.c
	libavcodec/indeo5.c
	libavcodec/ivi_common.c
	libavcodec/wmalosslessdec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

This generalizes the previous work on disposition printing.

Disposition flags are shown in a dedicated section, which should improve
output intellegibility, extensibility and filtering operations.

This breaks output syntax with the recently introduced disposition
printing.

Do not make use of ad-hoc "tags" code, introduce a new section flag
SECTION_FLAG_HAS_VARIABLE_FIELDS to deal with the tags in a
content-agnostic way.

This is required by the pending disposition change.

It is similar to av_set_options_string() but accepts a list
of options that can be in shorthand: if the key is omitted
on the first fields, the keys from the shorthand list are
assumed, in order.

This fixes a theoretical signed overflow
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes Ticket1620
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

When decode_nal_units() previously encountered a NAL_END_SEQUENCE,
and there are some junk bytes left in the input buffer, but no start codes,
buf_index gets stuck 3 bytes before the end of the buffer.

This can trigger an infinite loop in the caller code, eg. in
try_decode_trame(), as avcodec_decode_video() then keeps returning zeroes,
with 3 bytes of the input packet still available.

With this change, the remaining bytes are skipped so the whole packet gets
consumed.

CC:libav-stable@libav.org
Signed-off-by: Jindřich Makovička <makovick@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Be compatible with texi2html 5.0 which doesn't search relative
file names in search paths anymore.
Signed-off-by: Alexander Strasser <eclipse7@gmx.net>

It is got_output, not data_size.

Avoids a forward declaration of decode_chunks().

The decode function assumes that the video will have those dimensions.

Fixes CVE-2012-2801

CC:libav-stable@libav.org

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Fixes CVE-2012-2799

CC:libav-stable@libav.org

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Fixes CVE-2012-2798

CC:libav-stable@libav.org

Fixes a part of CVE-2012-2795

CC:libav-stable@libav.org

Based on a patch by Michael Niedermayer <michaelni@gmx.at>

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind

Fixes a part of CVE-2012-2795

CC:libav-stable@libav.org

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Fixes a part of CVE-2012-2795

CC:libav-stable@libav.org

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Anton Khirnov <anton@khirnov.net>

This prevents writing into a too small array if some parameters changed
without the tile being reallocated.

Based on a patch by Michael Niedermayer <michaelni@gmx.at>

Fixes CVE-2012-2800

CC:libav-stable@libav.org

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind

It's not used outside of ivi_common.c

This prevents writing into a too small array if some parameters changed
without the tile being reallocated.

Fixes CVE-2012-2794

CC:libav-stable@libav.org

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Fixes CVE-2012-2776.

CC:libav-stable@libav.org

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind