AV1 uses a vastly different range than what the global options permit,
and also for the other codecs the range of the global options is at
least misaligned.
Fixes#11365
This commit extends the support for Temporal Filtering in NVENC for
AV1 and H.264 codecs. For natural videos with noise, NVENC temporal
filtering improves video coding efficiency by 4-5%.
Signed-off-by: Diego de Souza <ddesouza@nvidia.com>
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
This commit adds support for Ultra High Quality mode for AV1 on
NVIDIA GPUs.
Signed-off-by: Diego de Souza <ddesouza@nvidia.com>
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
This commit adds support for 4:2:2 encoding for HEVC and H.264 on
NVIDIA Blackwell GPUs. Additionally, it supports 10-bit encoding
for H.264 on Blackwell GPUs.
Signed-off-by: Diego de Souza <ddesouza@nvidia.com>
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
Before the patch, the method to generate DTS only works with
timebase equal to 1/fps. With timebase like 1/1000
./ffmpeg -i foo.mp4 -an -c:v h264_nvenc -enc_time_base 1/1000 bar.mp4
pts 0 dts -3
pts 160 dts 37
pts 80 dts 77
pts 40 dts 117 <-- invalid
pts 120 dts 157
pts 320 dts 197
pts 240 dts 237
pts 200 dts 277 <-- invalid
pts 280 dts 317 <-- invalid
The generated DTS can be larger than PTS, since it only reorder the
input PTS and minus the number of frame delay, which doesn't take
timebase into account. It should minus the "time" of frame delay.
9a245bd trying to fix the issue, but the implementation is incomplete,
which only use time_base.num. Then it got reverted by ac7c265b33.
After this patch:
pts 0 dts -120
pts 160 dts -80
pts 80 dts -40
pts 40 dts 0
pts 120 dts 40
pts 320 dts 80
pts 240 dts 120
pts 200 dts 160
pts 280 dts 200
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
When Split frame encoding is enabled, each input frame is partitioned into
horizontal strips which are encoded independently and simultaneously by
separate NVENCs, usually resulting in increased encoding speed compared to
single NVENC encoding.
Signed-off-by: Diego Felix de Souza <ddesouza@nvidia.com>
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
The implementation is flawed in that the frame opaque data is not in
fact correctly reordered along with the packets, but is being output in
packet input order, just like the dts are.
This reverts commit 3553809703.
The encoder seems to be trading blows with hevc_nvenc.
In terms of quality at low bitrate cbr settings, it seems to
outperform it even. It produces fewer artifacts and the ones it
does produce are less jarring to my perception.
At higher bitrates I had a hard time finding differences between
the two encoders in terms of subjective visual quality.
Using the 'slow' preset, av1_nvenc outperformed hevc_nvenc in terms
of encoding speed by 75% to 100% while performing above tests.
Needless to say, it always massively outperformed h264_nvenc in terms
of quality for a given bitrate, while also being slightly faster.
With these triggering a lot of crashes recently, an option to globally
disable all of them is added as a tool to work around those crashes in
case the SEI data is not needed by the user.
Also re-enables s12m for hevc_nvenc, since the issue is not specifically
with that, but it affects all SEI data.
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
Relying on the order of the enum is bad.
It clashes with the new presets having to sit at the end of the list, so
that they can be properly filtered out by the options parser on builds
with older SDKs.
So this refactors nvenc.c to instead rely on the internal NVENC_LOSSLESS
flag. For this, the preset mapping has to happen much earlier, so it's
moved from nvenc_setup_encoder to nvenc_setup_device and thus runs
before the device capability check.
This commit follows the same logic as 061a0c14bb, but for the encode API: The
new public encoding API will no longer be a wrapper around the old deprecated
one, and the internal API used by the encoders now consists of a single
receive_packet() callback that pulls frames as required.
amf encoders adapted by James Almer
librav1e encoder adapted by James Almer
nvidia encoders adapted by James Almer
MediaFoundation encoders adapted by James Almer
vaapi encoders adapted by Linjie Fu
v4l2_m2m encoders adapted by Andriy Gelman
Signed-off-by: James Almer <jamrial@gmail.com>
The old approach used some highly complex delta computation math and
output-delaying.
I do not remember what the initial reasoning behind that was, but given
that we can just offset the dts by the amount of bframes, it seems wholy
unnecessary.
This leaves open an issue with VFR content, for which some more complex
logic might be needed.
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
The patch enables dynamic bitrate through ReconfigureEncoder method
from nvenc API.
This is useful for live streaming in case of network congestion.
Signed-off-by: pkviet <pkv.stream@gmail.com>
Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
