# \#encoder **URL:** https://forums.developer.nvidia.com/tag/encoder/60.md [Latest](https://forums.developer.nvidia.com/latest.md) · [Categories](https://forums.developer.nvidia.com/categories.md) · [Tags](https://forums.developer.nvidia.com/tags.md) --- ## [NVENC Benchmark Validation Methodology on Jetson AGX Thor](https://forums.developer.nvidia.com/t/nvenc-benchmark-validation-methodology-on-jetson-agx-thor/385433)
**Author:** [@mukeshsai](https://forums.developer.nvidia.com/u/mukeshsai)\ **Replies:** 3\ **Last updated:** [October 28, 2026, 5:01am UTC](https://forums.developer.nvidia.com/t/nvenc-benchmark-validation-methodology-on-jetson-agx-thor/385433 "2026-10-28T05:01:56Z")
Recently, I have been working on validating the encoder benchmark performance on the NVIDIA Jetson AGX Thor. Initially, I performed the validation using GStreamer. I used a script to determine the maximum achievable FP… --- ## [Jetson35.4.1版本的编码器在持续编码过程中会出现重启问题，导致视频流处理产生时延](https://forums.developer.nvidia.com/t/jetson35-4-1/385848)
**Author:** [@1712127445](https://forums.developer.nvidia.com/u/1712127445)\ **Replies:** 5\ **Last updated:** [October 22, 2026, 7:27am UTC](https://forums.developer.nvidia.com/t/jetson35-4-1/385848 "2026-10-22T07:27:53Z")
我们的设备接入多个网络摄像头的视频流，使用硬解码过程中会出现解码器重启问题，导致视频流处理产生时延，性能不达标。在报如下重启日志的前后没有更多的信息可以参考。 请回答如下问题： 1、该日志打印，是否时编码器重启的操作？ 2、若属于编码器重启操作，哪些原因会导致？如何排查和修复？ --- ## [R35.6 libnvjpeg: jpegTegraEncoderMgrCreate registers event callback with a dangling stack pointer → SIGSEGV in NvOsSemaphoreSignal](https://forums.developer.nvidia.com/t/r35-6-libnvjpeg-jpegtegraencodermgrcreate-registers-event-callback-with-a-dangling-stack-pointer-sigsegv-in-nvossemaphoresignal/386414)
**Author:** [@chris929](https://forums.developer.nvidia.com/u/chris929)\ **Replies:** 8\ **Last updated:** [October 22, 2026, 1:44am UTC](https://forums.developer.nvidia.com/t/r35-6-libnvjpeg-jpegtegraencodermgrcreate-registers-event-callback-with-a-dangling-stack-pointer-sigsegv-in-nvossemaphoresignal/386414 "2026-10-22T01:44:47Z")
Environment Jetson AGX Xavier (Connect Tech AGX101 Rogue carrier) L4T R35.6.5 (nvidia-l4t-core / nvidia-l4t-multimedia / nvidia-l4t-jetson-multimedia-api 35.6.5-20260701022834) libnvjpeg.so md5 1442835f5142724df475ac85… --- ## [Nvv4l2h264enc/h265enc swapped PTS when input PTS do not match the caps framerate (follow-up to topic 257363)](https://forums.developer.nvidia.com/t/nvv4l2h264enc-h265enc-swapped-pts-when-input-pts-do-not-match-the-caps-framerate-follow-up-to-topic-257363/386401)
**Author:** [@Poeggi](https://forums.developer.nvidia.com/u/Poeggi)\ **Replies:** 1\ **Last updated:** [October 21, 2026, 3:46am UTC](https://forums.developer.nvidia.com/t/nvv4l2h264enc-h265enc-swapped-pts-when-input-pts-do-not-match-the-caps-framerate-follow-up-to-topic-257363/386401 "2026-10-21T03:46:24Z")
Platform: Jetson Orin NX, JetPack 6.2 (L4T R36.4.3). The relevant plugin code is unchanged in R36.5 and R39.2.1. Topic 257363 was closed as “fixed in DeepStream 7.1”, but the issue still occurs on R36.4.3: - Input: liv… --- ## [JetPack 7 / R39.2.1: NVIDIA ffmpeg 8.0.1-nvidia1 overwrites Ubuntu libav\*-dev files and lacks swscale/basic codecs](https://forums.developer.nvidia.com/t/jetpack-7-r39-2-1-nvidia-ffmpeg-8-0-1-nvidia1-overwrites-ubuntu-libav-dev-files-and-lacks-swscale-basic-codecs/384593)
**Author:** [@onuralpszr](https://forums.developer.nvidia.com/u/onuralpszr)\ **Replies:** 3\ **Last updated:** [October 14, 2026, 2:33am UTC](https://forums.developer.nvidia.com/t/jetpack-7-r39-2-1-nvidia-ffmpeg-8-0-1-nvidia1-overwrites-ubuntu-libav-dev-files-and-lacks-swscale-basic-codecs/384593 "2026-10-14T02:33:40Z")
Environment Board: Jetson Orin Nano Engineering Reference Developer Kit Super L4T: R39.2.1 (GCID 46758480, Aug 7 2026) OS: Ubuntu 24.04.5 LTS (aarch64) Package: ffmpeg 7:8.0.1-nvidia1 from https://repo.download.nvidia.c… --- ## [Using v4l2 encoding with ROI params on Thor](https://forums.developer.nvidia.com/t/using-v4l2-encoding-with-roi-params-on-thor/384819)
**Author:** [@diego.falk](https://forums.developer.nvidia.com/u/diego.falk)\ **Replies:** 1\ **Last updated:** [October 2, 2026, 1:52am UTC](https://forums.developer.nvidia.com/t/using-v4l2-encoding-with-roi-params-on-thor/384819 "2026-10-02T01:52:56Z")
Hi, I’m trying to run an encoder passing ROI params in a Jetson Thor. I’m using the /usr/src/jetson\_multimedia\_api/samples/01\_video\_encode sample to perform encodes through the jetson\_multimedia\_api. But when I try to e… --- ## [What is the maximum number of encoder instances that can be created concurrently on Orin?](https://forums.developer.nvidia.com/t/what-is-the-maximum-number-of-encoder-instances-that-can-be-created-concurrently-on-orin/381446)
**Author:** [@liuq1](https://forums.developer.nvidia.com/u/liuq1)\ **Replies:** 6\ **Last updated:** [September 22, 2026, 10:55pm UTC](https://forums.developer.nvidia.com/t/what-is-the-maximum-number-of-encoder-instances-that-can-be-created-concurrently-on-orin/381446 "2026-09-22T22:55:52Z")
Hi nvidia， What is the maximum number of encoder instances that can be created concurrently on Jetson AGX Orin? --- ## [JetPack 7.2.1 (r39.2.1): NvRmFenceWait opens and closes a host1x device on every call](https://forums.developer.nvidia.com/t/jetpack-7-2-1-r39-2-1-nvrmfencewait-opens-and-closes-a-host1x-device-on-every-call/383909)
**Author:** [@rnefyodov](https://forums.developer.nvidia.com/u/rnefyodov)\ **Replies:** 1\ **Last updated:** [September 22, 2026, 2:21am UTC](https://forums.developer.nvidia.com/t/jetpack-7-2-1-r39-2-1-nvrmfencewait-opens-and-closes-a-host1x-device-on-every-call/383909 "2026-09-22T02:21:40Z")
Platform: Jetson AGX Orin 64GB devkit, stock JetPack 7.2.1 from the apt feed # R39 (release), REVISION: 2.1, GCID: 46758480, kernel 6.8.12-1021-tegra, nvidia-l4t-core / nvidia-l4t-multimedia 39.2.1-20260806224157. Wha… --- ## [RTX 5050 on ARM64/CIX P1: NVENC fails with error 21 on driver 615.71.09, works on 610.57.04](https://forums.developer.nvidia.com/t/rtx-5050-on-arm64-cix-p1-nvenc-fails-with-error-21-on-driver-615-71-09-works-on-610-57-04/382838)
**Author:** [@Nitrobenzene](https://forums.developer.nvidia.com/u/Nitrobenzene)\ **Replies:** 0\ **Last updated:** [September 10, 2026, 1:06am UTC](https://forums.developer.nvidia.com/t/rtx-5050-on-arm64-cix-p1-nvenc-fails-with-error-21-on-driver-615-71-09-works-on-610-57-04/382838 "2026-09-10T01:06:21Z")
RTX 5050 on ARM64/CIX P1: NVENC fails with error 21 on driver 615.71.09, works on 610.57.04 Hello NVIDIA team, I am testing an NVIDIA GeForce RTX 5050 on an ARM64 platform based on the CIX P1 / CD8180 SoC (Radxa Orion O… --- ## [JpegEncoder scaled encode isn't working](https://forums.developer.nvidia.com/t/jpegencoder-scaled-encode-isnt-working/379319)
**Author:** [@kko-smol](https://forums.developer.nvidia.com/u/kko-smol)\ **Replies:** 3\ **Last updated:** [September 1, 2026, 7:47am UTC](https://forums.developer.nvidia.com/t/jpegencoder-scaled-encode-isnt-working/379319 "2026-09-01T07:47:55Z")
Hi. Looks like scale\_encode option is not working on Jetson Thor? I running 05\_jpeg\_encode and it makes good jpeg file but with wrong output size. Result jpeg have same size as input file, not scaled. nvidia@jetson:/usr… --- ## [Nvv4l2av1enc keyFrames not working](https://forums.developer.nvidia.com/t/nvv4l2av1enc-keyframes-not-working/328816)
**Author:** [@razvanphp](https://forums.developer.nvidia.com/u/razvanphp)\ **Replies:** 44\ **Last updated:** [August 14, 2026, 9:10am UTC](https://forums.developer.nvidia.com/t/nvv4l2av1enc-keyframes-not-working/328816 "2026-08-14T09:10:38Z")
Related to Nvv4l2h264enc NACK / PLI / FIR event handling and AV1/RTSP Streaming Not Working - #18 by DaneLLL, can you please tell us what that test libtegrav4l2.so contains? I’m guessing it enables keyFrames, as this is… --- ## [JP7.2 - 15\_multivideo\_encode reports NvMedia2D operation failed in NvMedia2DGetComposeParameters with status: 9](https://forums.developer.nvidia.com/t/jp7-2-15-multivideo-encode-reports-nvmedia2d-operation-failed-in-nvmedia2dgetcomposeparameters-with-status-9/379380)
**Author:** [@joe273](https://forums.developer.nvidia.com/u/joe273)\ **Replies:** 5\ **Last updated:** [August 11, 2026, 7:50pm UTC](https://forums.developer.nvidia.com/t/jp7-2-15-multivideo-encode-reports-nvmedia2d-operation-failed-in-nvmedia2dgetcomposeparameters-with-status-9/379380 "2026-08-11T19:50:16Z")
Hi all, I am doing parallel multivideo encoding on AGX Orin and updated to JP7.2 for argus stability It seems there is some multivideo encoder instability on jp7.2. When i run the mmapi example 15 i get logs like this: … --- ## [Feature request: expose NV\_ENC\_INITIALIZE\_PARAMS::splitEncodeMode in PyNvVideoCodec](https://forums.developer.nvidia.com/t/feature-request-expose-nv-enc-initialize-params-splitencodemode-in-pynvvideocodec/379399)
**Author:** [@Iablunoshka](https://forums.developer.nvidia.com/u/Iablunoshka)\ **Replies:** 0\ **Last updated:** [August 6, 2026, 11:07pm UTC](https://forums.developer.nvidia.com/t/feature-request-expose-nv-enc-initialize-params-splitencodemode-in-pynvvideocodec/379399 "2026-08-06T23:07:15Z")
Hello, I would like to request exposing NVENC split-frame encoding control through the public PyNvVideoCodec Encoder API. PyNvVideoCodec 2.2.0 already contains everything required internally: the bundled Video Codec … --- ## [Effect of Encoder HW Preset](https://forums.developer.nvidia.com/t/effect-of-encoder-hw-preset/378190)
**Author:** [@liuq1](https://forums.developer.nvidia.com/u/liuq1)\ **Replies:** 1\ **Last updated:** [July 27, 2026, 5:41am UTC](https://forums.developer.nvidia.com/t/effect-of-encoder-hw-preset/378190 "2026-07-27T05:41:25Z")
Hi Nvidia， I did not call the setHWPresetType function in my code to set the encoder preset. How does the encoder balance encoding speed and video quality in this case? What is the difference between V4L2\_ENC\_HW\_PR… --- ## [JetPack on AGX Orin with RHEL: Hardware Video Encoding/Decoding (NVMPI) Fails in Headless Environment](https://forums.developer.nvidia.com/t/jetpack-on-agx-orin-with-rhel-hardware-video-encoding-decoding-nvmpi-fails-in-headless-environment/377261)
**Author:** [@shunguang.wu](https://forums.developer.nvidia.com/u/shunguang.wu)\ **Replies:** 10\ **Last updated:** [July 20, 2026, 11:45pm UTC](https://forums.developer.nvidia.com/t/jetpack-on-agx-orin-with-rhel-hardware-video-encoding-decoding-nvmpi-fails-in-headless-environment/377261 "2026-07-20T23:45:24Z")
Hi everyone, I am trying to deploy JetPack on an NVIDIA AGX Orin running Red Hat Enterprise Linux (RHEL) instead of Ubuntu because our project requires a RHEL-based environment for security and deployment reasons. Curr… --- ## [ROI in Orin encoder](https://forums.developer.nvidia.com/t/roi-in-orin-encoder/371384)
**Author:** [@fcj](https://forums.developer.nvidia.com/u/fcj)\ **Replies:** 24\ **Last updated:** [July 20, 2026, 8:37am UTC](https://forums.developer.nvidia.com/t/roi-in-orin-encoder/371384 "2026-07-20T08:37:07Z")
@DaneLLL My input video is 5760x1080 and encoder is HEVC with 1 ROI region which is "x": "1792", "y": "320", "width": "1792", "height": "248" When I extract QP values of a frame, I saw ROI region (deep… --- ## [NVENC: Should I create a separate thread to flush the generated bitstream?](https://forums.developer.nvidia.com/t/nvenc-should-i-create-a-separate-thread-to-flush-the-generated-bitstream/377092)
**Author:** [@diederick](https://forums.developer.nvidia.com/u/diederick)\ **Replies:** 0\ **Last updated:** [July 16, 2026, 7:55pm UTC](https://forums.developer.nvidia.com/t/nvenc-should-i-create-a-separate-thread-to-flush-the-generated-bitstream/377092 "2026-07-16T19:55:02Z")
I’m reading the NVENC Programmer’s Guide and trying to correctly implement the recommendation from Section 6.3: Threading Model. The guide recommends using a dedicated thread that calls NvEncLockBitstream() and NvEncUnl… --- ## [Jetson Orin AGX: tegrav4l2 encoder missing V4L2 colorimetry support for BT.2020 / full range](https://forums.developer.nvidia.com/t/jetson-orin-agx-tegrav4l2-encoder-missing-v4l2-colorimetry-support-for-bt-2020-full-range/374355)
**Author:** [@antoine.huc](https://forums.developer.nvidia.com/u/antoine.huc)\ **Replies:** 3\ **Last updated:** [June 30, 2026, 7:38am UTC](https://forums.developer.nvidia.com/t/jetson-orin-agx-tegrav4l2-encoder-missing-v4l2-colorimetry-support-for-bt-2020-full-range/374355 "2026-06-30T07:38:01Z")
Hi NVIDIA team, We have been investigating colorimetry metadata propagation when encoding video on a Jetson AGX Orin DevKit using the V4L2 encoder C++ API. Our current platform is: L4T | R36.4.7 Kernel | 5.15.148-teg… --- ## [Mismatch between stss and key frames](https://forums.developer.nvidia.com/t/mismatch-between-stss-and-key-frames/374130)
**Author:** [@andrei.liaukovich](https://forums.developer.nvidia.com/u/andrei.liaukovich)\ **Replies:** 5\ **Last updated:** [June 26, 2026, 1:02am UTC](https://forums.developer.nvidia.com/t/mismatch-between-stss-and-key-frames/374130 "2026-06-26T01:02:17Z")
Hi! We found an odd problem with nvv4l2h264enc on r35.4.1: result mp4 has no parity between key frames and stss samples. From what I understand, in valid mp4 file, stss should point to key frames, but in our case there i… --- ## [Hardware encoding throwing errors](https://forums.developer.nvidia.com/t/hardware-encoding-throwing-errors/371215)
**Author:** [@lvjianming1](https://forums.developer.nvidia.com/u/lvjianming1)\ **Replies:** 9\ **Last updated:** [June 24, 2026, 2:20am UTC](https://forums.developer.nvidia.com/t/hardware-encoding-throwing-errors/371215 "2026-06-24T02:20:49Z")
Jun 07 21:49:57 omiga-brain camera\_drivers\[6874\]: Module\_id 56 Severity 2 : failed to unpin memory, no such handle being tracked Jun 07 21:49:57 omiga-brain camera\_drivers\[6874\]: Module\_id 56 Severity 2 : failed to unpi… --- ## [NVENC encoder performance](https://forums.developer.nvidia.com/t/nvenc-encoder-performance/374047)
**Author:** [@lvjianming1](https://forums.developer.nvidia.com/u/lvjianming1)\ **Replies:** 12\ **Last updated:** [June 23, 2026, 10:23am UTC](https://forums.developer.nvidia.com/t/nvenc-encoder-performance/374047 "2026-06-23T10:23:57Z")
We are using four cameras with a resolution of 2592×1944 at 30 fps on Jetson AGX Orin. The video streams are encoded using H.264. However, when H.264 encoding is enabled for all four streams, the output frame rate drops… --- ## [High CPU Usage on Orin Nano](https://forums.developer.nvidia.com/t/high-cpu-usage-on-orin-nano/373569)
**Author:** [@parthm](https://forums.developer.nvidia.com/u/parthm)\ **Replies:** 3\ **Last updated:** [June 22, 2026, 2:44pm UTC](https://forums.developer.nvidia.com/t/high-cpu-usage-on-orin-nano/373569 "2026-06-22T14:44:24Z")
Device: Jetson Orin Nano (L4T 36.4.0, JetPack 6.x) Use case: AWS Kinesis Video Streams WebRTC SDK (C), 6 concurrent RTSP camera sources, each running its own GStreamer pipeline and kvsWebrtcClient process Pipeline (per… --- ## [How to set CQP encode mode in Jetson AGX Orin](https://forums.developer.nvidia.com/t/how-to-set-cqp-encode-mode-in-jetson-agx-orin/372501)
**Author:** [@liuq1](https://forums.developer.nvidia.com/u/liuq1)\ **Replies:** 5\ **Last updated:** [June 8, 2026, 3:42am UTC](https://forums.developer.nvidia.com/t/how-to-set-cqp-encode-mode-in-jetson-agx-orin/372501 "2026-06-08T03:42:08Z")
How to set Constant QP encode mode in Jetson AGX Orin? --- ## [Mmapi encoder dequeue capture not blocked](https://forums.developer.nvidia.com/t/mmapi-encoder-dequeue-capture-not-blocked/369832)
**Author:** [@Eamo](https://forums.developer.nvidia.com/u/Eamo)\ **Replies:** 3\ **Last updated:** [June 4, 2026, 2:08am UTC](https://forums.developer.nvidia.com/t/mmapi-encoder-dequeue-capture-not-blocked/369832 "2026-06-04T02:08:00Z")
I am writing encoder using v4l2 api on orin agx I am open the fd with block flags BUT i see that dequeue buffer on the capture side return with -1 value and errno=EAGAIN That a nonblock behavior How can return from f… --- ## [RTX PRO 2000 Blackwell Linux 595.71.05: HEVC NVENC/NVDEC unsupported, cuvidGetDecoderCaps returns zero caps](https://forums.developer.nvidia.com/t/rtx-pro-2000-blackwell-linux-595-71-05-hevc-nvenc-nvdec-unsupported-cuvidgetdecodercaps-returns-zero-caps/368988)
**Author:** [@mbhargav294](https://forums.developer.nvidia.com/u/mbhargav294)\ **Replies:** 1\ **Last updated:** [June 3, 2026, 2:04pm UTC](https://forums.developer.nvidia.com/t/rtx-pro-2000-blackwell-linux-595-71-05-hevc-nvenc-nvdec-unsupported-cuvidgetdecodercaps-returns-zero-caps/368988 "2026-06-03T14:04:07Z")
I am seeing a host-level HEVC video codec failure on an NVIDIA RTX PRO 2000 Blackwell using Linux driver 595.71.05. This is not a Plex, Docker, LXC, or container passthrough issue. I reproduced the failure directly on t… --- ## [Encoder orin agx problem](https://forums.developer.nvidia.com/t/encoder-orin-agx-problem/370494)
**Author:** [@Eamo](https://forums.developer.nvidia.com/u/Eamo)\ **Replies:** 5\ **Last updated:** [June 3, 2026, 3:09am UTC](https://forums.developer.nvidia.com/t/encoder-orin-agx-problem/370494 "2026-06-03T03:09:42Z")
We implemented encoder using mmapi. We see several problems: We measure one channel with resolution of 1280x1080 from push frame until we get encoded frame and get latency of 9ms, two channels we get latency of 22ms. … --- ## [Encoder and gdm performance relation orin agx L4T36.4.0](https://forums.developer.nvidia.com/t/encoder-and-gdm-performance-relation-orin-agx-l4t36-4-0/371498)
**Author:** [@Eamo](https://forums.developer.nvidia.com/u/Eamo)\ **Replies:** 1\ **Last updated:** [May 28, 2026, 12:24am UTC](https://forums.developer.nvidia.com/t/encoder-and-gdm-performance-relation-orin-agx-l4t36-4-0/371498 "2026-05-28T00:24:20Z")
We run the encoder example encoding h265 with --stats flag to see fps measurements. we also start andstop gdm service using: systemctl start gdm systemctl stop gdm When gdm is running the fps around 385 BUT when we s… --- ## [NVIDIA Blackwell Vulkan Video Encode AV1 Driver Corruption?](https://forums.developer.nvidia.com/t/nvidia-blackwell-vulkan-video-encode-av1-driver-corruption/370091)
**Author:** [@J3F](https://forums.developer.nvidia.com/u/J3F)\ **Replies:** 0\ **Last updated:** [May 14, 2026, 4:18am UTC](https://forums.developer.nvidia.com/t/nvidia-blackwell-vulkan-video-encode-av1-driver-corruption/370091 "2026-05-14T04:18:38Z")
Hi NVIDIA, I want to report what looks like a Vulkan Video Encode AV1 driver bug on Blackwell GPUs. I originally thought this was probably an issue in my own code, so I spent a long time debugging synchronization, queu… --- ## [Issue with OBS NVENC Encoder on Jetson Orin NX (r36)](https://forums.developer.nvidia.com/t/issue-with-obs-nvenc-encoder-on-jetson-orin-nx-r36/367459)
**Author:** [@howardevxpr](https://forums.developer.nvidia.com/u/howardevxpr)\ **Replies:** 2\ **Last updated:** [May 6, 2026, 1:21am UTC](https://forums.developer.nvidia.com/t/issue-with-obs-nvenc-encoder-on-jetson-orin-nx-r36/367459 "2026-05-06T01:21:33Z")
Hi everyone, I’ve installed the NVENC plugin for OBS, but I’m encountering an error in the logs when I use the NVENC in OBS. After searching the forums, I came across this thread: The response there states that t… --- ## [How to recover the encode image](https://forums.developer.nvidia.com/t/how-to-recover-the-encode-image/368089)
**Author:** [@liuq1](https://forums.developer.nvidia.com/u/liuq1)\ **Replies:** 3\ **Last updated:** [April 28, 2026, 8:50am UTC](https://forums.developer.nvidia.com/t/how-to-recover-the-encode-image/368089 "2026-04-28T08:50:57Z")
Hi Nvidia, I encountered an encoding issue. I needed to encode an image of size 1920×1056, but I didn’t realize that the stride was 2048. I directly called cudaMemcpy to copy the image data into the NV buffer. Now I ha… [Next page](https://forums.developer.nvidia.com/tag/encoder/60.md?match_all_tags=true&page=1&tags%5B%5D=encoder)