encoder

Iteration on images with Pytorch: error due to CUDA memory issue with batch size 1

孤街浪徒 提交于 2020-08-10 19:46:53
问题 During training, the architecture generates three models and now encoder is used to encode images with iterations=16. After performing 6 iteration, i got an error. "CUDA out of memory". I have 4 gpus and i also implemented dataparallel class but it does not work Transformation while training train_transform = transforms.Compose([ #transforms.RandomCrop((32, 32)), transforms.ToPILImage(), transforms.Resize((512, 512)), #transforms.ColorJitter(brightness=0.5), transforms.ToTensor(), ]) Encoder

Detect the capability of using multiple MediaCodec as video encoder in Android

穿精又带淫゛_ 提交于 2020-08-08 05:18:06
问题 Refer to this question, it is device-dependent that whether an APP can use multiple MediaCodec instances as video encoder or not. Is there a recommended way to detect the capability of this on devices? For example, if there is an Android API to query the support of multiple video encoder or its max count, or this can be checked when creating/initializing the MediaCodec instance before the encoding process? I want to detect the device capability in my APP without the need of encoding bad

Is Apache Commons Codec Base64 a drop-in replacement for sun.misc.BASE64?

谁都会走 提交于 2020-06-17 06:29:30
问题 Background This is a follow-up question to my original question Migrating from sun.misc.BASE64 to Java 8 java.util.Base64 because someone suggested that the Apache Commons Codec Base64 API is a drop-in replacement to migrate code which uses the sun.misc Base64 APIs. Question Is the org.apache.commons.codec.binary.Base64 a drop-in replacement for the unsupported, internal Java API sun.misc.BASE64Encoder and sun.misc.BASE64Decoder ? Drop-in replacement means that the encoding/decoding results

ffmpeg avcodec_encode_video2 hangs when using Quick Sync h264_qsv encoder

被刻印的时光 ゝ 提交于 2020-06-14 06:33:47
问题 When I use the mpeg4 or h264 encoders, I am able to successfully encode images to make a valid AVI file using the API for ffmpeg 3.1.0. However, when I use the Quick Sync encoder (h264_qsv), avcodec_encode_video2 will hang some of the time. I found that when using images that are 1920x1080, it was rare that avcodec_encode_video2 would hang. When using 256x256 images, it was very likely that the function would hang. I have created the test code below that demonstrates the hang of avcodec

how to reduce MediaCodec H264 encoder latency

我的梦境 提交于 2020-02-28 07:04:58
问题 I'm trying to encode h264 into stream in real-time low latency with Android6.0's MediaCodec. There are about 6 frames latency from encoder which I wanna know how to reduce Codes are from screenrecord.cpp part codes are: while (true) { encoder->dequeueOutputBuffer(&bufIndex); } the encoder is feed by Surface of screen in 320x480 60 fps, and it outputs stream data by dequeueOutputBuffer(). There are about 6 frames feed to encoder whose data are not return immedately by dequeueOutputBuffer(). In

using Windows Media Encoder to record screen

試著忘記壹切 提交于 2020-01-13 06:59:19
问题 Is it easy to write some .Net code to record screen and audio (from computer mic), then output to an wmv file. Any reference code? BTW: I searched all codes from WME SDK, no such sample code. thanks! George 回答1: Microsoft and the content mafi^H^H^H^Hindustry are trying their best to make this impossible. You will be far better of searching for "open source screen audio capture" than browsing any officially supplied documentation/example code - I would be seriously surprised if Microsoft

Nexus 7 2013 mediacodec video encoder garbled output

不羁的心 提交于 2020-01-11 06:57:08
问题 I'm working on an app which encodes a movie using h.264 encoder to gallery and other targets. This app supports variable aspect ratios at output (1:1, 2:3, 3:2, 16:9, 3:4, 4:3). I'm using surface inputs for input/output from the 4.3 API. The app works ok on many devices (tested on S3, Motorola G, Nexus 7 2012, Motorola X), however, I've hit a wall when running it on Nexus 7 2013. Basically, some output resolutions work, some do not. 3:4 (720x960), 2:3 (720x1080) and 16:9 (1280x720) work as

How can I turn a series of images into a video using JCodec?

狂风中的少年 提交于 2019-12-30 07:28:30
问题 I'm trying to use JCodec to turn a series of images into a video inside of a Java SE desktop application. The few methods I've tried all resulted in a video that Windows Media Player could not play. It is unclear to me if this is a codec issue (doubtful) or if I'm not creating the video properly. When I try to play the video in Windows Media Player I get: Windows Media Player cannot play the file. The Player might not support the file type or might not support the codec that was used to