Fixes: undefined memcpy() use
Fixes: 16302/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IFF_ILBM_fuzzer-5678750575886336

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

Fixes: Timeout (288sec -> 1ms)
Fixes: 16353/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VQA_fuzzer-5633402606190592

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

Fixes: signed integer overflow: 2147480546 + 4096 cannot be represented in type 'int'
Fixes: 16280/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5123442566758400

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpegReviewed-by: NTomas Härdin <tjoppen@acc.umu.se>
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Use the command ./configure with/without --disable-v4l2-m2m test.
Reviewed-by: NAman Gupta <aman@tmm1.net>
Signed-off-by: NJun Zhao <barryjzhao@tencent.com>

fix --disable-alsa can't work in configure
Signed-off-by: NJun Zhao <barryjzhao@tencent.com>

av_map_videotoolbox_format_from_pixfmt2() added in previous
commit to support full-range pixel formats.
Signed-off-by: NAman Gupta <aman@tmm1.net>

Signed-off-by: NAman Gupta <aman@tmm1.net>

Signed-off-by: NLimin Wang <lance.lmwang@gmail.com>

Signed-off-by: Guo, Yejun <yejun.guo@intel.com>
Signed-off-by: NPedro Arthur <bygrandao@gmail.com>

Speeds up the process considerably.

Fixes ticket #8109.

Suggested-by: nevcairiel
Suggested-by: cehoyos
Signed-off-by: NJames Almer <jamrial@gmail.com>

Signed-off-by: NJames Almer <jamrial@gmail.com>

Signed-off-by: NJames Almer <jamrial@gmail.com>

Signed-off-by: NJames Almer <jamrial@gmail.com>

This reverts commit 976dae8b.

An alternative approach to reduce frame copying will follow.

Signed-off-by: NJames Almer <jamrial@gmail.com>

Some decoders may not need a writable buffer in some specific cases, but only
a reference to the existing buffer with updated frame properties instead, for
the purpose of returning duplicate frames. For this, the
FF_REGET_BUFFER_FLAG_READONLY flag is added, which will prevent potential
allocations and buffer copies when they are not needed.
Signed-off-by: NJames Almer <jamrial@gmail.com>

On some DVB stream SCTE-35 data packet are available before the end of
MpegTSContext initialization. We have to check if it is the case to
avoid a SEGFAULT.
Signed-off-by: NMarton Balint <cus@passwd.hu>

When compiling natively on an RPI where libomxil-bellagio-dev
was also installed, `check_headers OMX_Core.h` succeeded and
the -isystem compiler flag was never added to the build.

For non-native builds, the error message now mentions the
raspberrypi/firmware repository where the RPI specific
headers are available.
Signed-off-by: NAman Gupta <aman@tmm1.net>

Signed-off-by: NAman Gupta <aman@tmm1.net>

Signed-off-by: NAman Gupta <aman@tmm1.net>

ENOMEM indicates an allocation failure, and there are no allocations
happening here. The buffers are pre-allocated and there are simply
none available at this time.
Signed-off-by: NAman Gupta <aman@tmm1.net>

Signed-off-by: NJorge Ramirez-Ortiz <jramirez@baylibre.com>
Signed-off-by: NAman Gupta <aman@tmm1.net>

v4l2_pts is type int64_t we should return that instead of uint64_t
Signed-off-by: NAman Gupta <aman@tmm1.net>

Signed-off-by: NAman Gupta <aman@tmm1.net>

Signed-off-by: NAman Gupta <aman@tmm1.net>

Signed-off-by: NAman Gupta <aman@tmm1.net>

Signed-off-by: NAman Gupta <aman@tmm1.net>

Signed-off-by: NAman Gupta <aman@tmm1.net>

Signed-off-by: NAman Gupta <aman@tmm1.net>

Signed-off-by: NAman Gupta <aman@tmm1.net>

When ffmpeg was streaming, multiple clients were only supported by using a
multicast destination address. An alternative was to stream to a server which
re-distributes the content. This commit adds ZeroMQ as a protocol, which allows
multiple clients to connect to a single ffmpeg instance.
Signed-off-by: NMarton Balint <cus@passwd.hu>

Integer overflow in the Q16 framerate calculation was sending
invalid values to the OMX encoder.

On the RPI4, this manifested as bitrate controls being ignored
on video streams with 60000/1001 framerates. Video streams with
30000/1001 framerates were not affected.
Signed-off-by: NAman Gupta <aman@tmm1.net>

7d097a0f had the same purpose as
3700f655 but the former is much simpler, so
let's remove the latter.

Unfortunately both checks were wrong, because in order to make sure DTS > PCR
we have to give us some headroom, so instead of using a dts_difference <
max_delay check let's use a dts_difference < max_delay/2 check.

Fixes DTS < PCR errors with this command line:

./ffmpeg -loglevel verbose -y -f lavfi -i \
  "testsrc=s=64x64:d=20,split=2[out0][tmp1];[tmp1]vflip[out1];sine=d=20,asetnsamples=1000[out2]" \
  -flags +bitexact -fflags +bitexact -sws_flags +accurate_rnd+bitexact  \
  -codec:v libx264 -codec:a mp2 -b:a 32k -pix_fmt yuv420p \
  -map '0:v:0' \
  -map '0:v:1' \
  -map '0:a:0'  \
  -muxrate 800000 \
  -program st=0:st=2 -program st=1:st=2 -program st=2 -program st=0 -f mpegts out1.ts
Signed-off-by: NMarton Balint <cus@passwd.hu>

Signed-off-by: NMarton Balint <cus@passwd.hu>

Fixes: left shift of negative value -3
Fixes: 16147/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RALF_fuzzer-5658392722407424

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

Fixes: left shift of negative value -2
Fixes: 16145/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RALF_fuzzer-5146671058518016

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

add inner loop specialisations for 2 bpp and 4 bpp
These are all cases for which i found testsamples.

30M cycles -> 5M cycles

Testcase: fate-rgbapng-4816
Testcase: 16097/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APNG_fuzzer-5664690889293824

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

Fixes: signed integer overflow: 2021654528 + 2032575680 cannot be represented in type 'int'
Fixes: 16270/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5732438816325632

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