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

This also converts vc1, since that is mpegvideo-based.
Signed-off-by: Martin Storsjö <martin@martin.st>

This makes svq1 independent of dsputil.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

This makes interplayvideo independent of dsputil.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

This makes the Indeo 3 decoder independent of dsputil.
Signed-off-by: Martin Storsjö <martin@martin.st>

This makes vp5 and vp6 independent of dsputil.
Signed-off-by: Martin Storsjö <martin@martin.st>

This makes vp3 independent of dsputil.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

Based on a patch by Vittorio Giovara <vittorio.giovara@gmail.com>

Fixes Bug 378.

Needed e.g. for h264 cropping to work properly.

Fixes seeking without a Xing/Info header.

CC: libav-stable@libav.org
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org

The data offsets are relative to the bistream header, which is 16 bytes
after the start of the data.
Fixes invalid reads with corrupted files.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org

Also add an additional sanity check to the alt_quant table.
Fixes invalid reads with corrupted files.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org

Also improve some error messages.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org

Fixes invalid reads for corrupted files.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org

They can be different if the last keyframe failed to decode correctly.
Fixes possible invalid reads in such a case.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org

Fixes invalid reads from non-existing channels.

CC:libav-stable@libav.org

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

FLV does not support multiple audio or video streams.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

This is required since there are bit-inexact implementations
of the vp3 idct (for bfin).
Signed-off-by: Martin Storsjö <martin@martin.st>

This way, the special IDCT permutations are no longer needed. This
is similar to how H264 does it, and removes the dsputil dependency
imposed by the scantable code.

Also remove the unused type == 0 cases from the plain C version
of the idct.
Signed-off-by: Martin Storsjö <martin@martin.st>

While this change isn't bitexact, the IDCTs weren't bitexact to
start with either.

This simplifies decoupling vp3 from dsputil.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

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