If a PAT is finished while a PMT section filter is opened but
not yet finished, the PMT section filter is closed and all
the received data is discarded.

This is usually not an issue but some multiplexers (With very
quick PAT/PMT repetition settings) consistently emit a PMT
section start, then a PAT, and then the rest of the PMT,
causing the aforementioned behavior to result in no PMT being
finished.

In the most pathologic situation the stream information are lost
and the probe fallback miscategorizes subtitles as mp3 audio.

Avoid the issue through eliminating redundant PSI/SI table
updates by checking their version field, which is required by
the standard to be incremented on every change no matter how
minor.

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

Fixes a memory leak on init failure.

Convert exisiting free functions to av_freep() to avoid accidental
double frees, and always intialize all buffers to NULL.

This avoids allocating/freeing memory at every function call,
checking its return value, and carrying the error around.

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

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

This takes care of memory leaks on init error.

This takes care of memory leaks on init error.

The table had a wrong table height and was missing the first line of bytes.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Improves Coverity analysis, avoiding "double semicolon" CIDs.

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

This fixes the calculation of the number of needed blocks to make
sure that ALL pixels are represented by the result.
Signed-off-by: Martin Storsjö <martin@martin.st>

This removes the error logging added in 4e544321.

This avoids warnings about "Invalid interval start specification 'now'"
for live rtsp streams.

We only try to parse some of the many valid values for time ranges
in RTSP - the other ones are fully valid but not interesting for the
use case in rtsp.c, so we shouldn't warn about them.

(Parsing the time ranges is needed to allow seeking, but e.g. setting
the current realtime clock for the start time doesn't make sense.
av_parse_time has got a different mode for parsing absolute times
as well, which can handle the special case "now", but that doesn't
make much sense for this particular use in rtsp.c.)
Signed-off-by: Martin Storsjö <martin@martin.st>

The last pixel format gets leaked as `$test` further down the pipeline.

See for example https://fate.libav.org/x86_32-netbsd-clang-no-inline-asm/20150420020104
Note the odd test names like “yuvj444p.”

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

Improve the compatibility with other software.

The `hq_ac_vlc.table` is incomplete, so unaccounted symbol return -1
as value.

This correction was suggested to me by Michael Niedermayer
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

And document both `draw` and `alpha`.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Useful to understand where and in what execution state a certain message
is generated. It is enabled only when optimizations are disabled, since
function names are not printed otherwise.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Value is stored as a byte.

It is required by ptrdiff_t, fixes make checkheaders.

warning: assigning to
      'char *' from 'const char *' discards qualifiers
      [-Wincompatible-pointer-types-discards-qualifiers]

Bug-Id: CID 1026763

Bug-Id: CID 1295124

The FATE server does not report this information anyway and omitting
it makes the successful run send much less data.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Use direcly avio_w8().
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

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

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

This field is mandatory in dynamic manifests.
Signed-off-by: Martin Storsjö <martin@martin.st>

Bug-Id: CID 1265785
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>