Signed-off-by: NAndreas Rheinhardt <andreas.rheinhardt@gmail.com>

Signed-off-by: NAndreas Rheinhardt <andreas.rheinhardt@gmail.com>

This is possible by switching to ff_init_vlc_from_lengths() which allows
to replace tables of codes of size uint16_t or uint32_t by tables of
symbols of size uint8_t; in case there already were symbols tables the
savings are even bigger.
Signed-off-by: NAndreas Rheinhardt <andreas.rheinhardt@gmail.com>

Signed-off-by: NAndreas Rheinhardt <andreas.rheinhardt@gmail.com>

Fixes: Timeout (125sec -> 0.4sec)
Fixes: 18059/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_QDMC_fuzzer-5656195825664000

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpegReviewed-by: NPaul B Mahol <onemda@gmail.com>
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Fixes: signed integer overflow: 214013 * 2531011 cannot be represented in type 'int'
Fixes: 15254/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_QDMC_fuzzer-5698137026461696

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpegSigned-off-by: NMichael Niedermayer <michael@niedermayer.cc>

They don't modify AVCodec, no needs to call it at register. They will be
wasteful if these codecs are unused. Instead, call static data initialization
at codecs' init.

Benchmark:
old: 51281340 decicycles in avcodec_register_all,       1 runs,      0 skips
new:  6738960 decicycles in avcodec_register_all,       1 runs,      0 skips
Reviewed-by: Nwm4 <nfxjfg@googlemail.com>
Reviewed-by: NMichael Niedermayer <michael@niedermayer.cc>
Signed-off-by: NMuhammad Faiz <mfcc64@gmail.com>

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

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