失败,bad src img pointers 运行结果如下图所示: bad_src_img_pointers.png 问题原因: 如代码 hw_decode_cuvid_origin.c 中所示, 直接通过transfer_data 将gpu 中解码后的frame download到 系统内存,则系统内存中的frames piex->format 仍为 AV_PIX_FMT_CUDA ,而 AV_PIX_FMT_CUDA 是gpu 显存中存储的解码...
这是我第一次使用的方式,模仿 cpu 上软解码(获取视频帧,并存储为bmp格式,经验原则,这种方式最容易想到)运行结果: 失败,bad src img pointers 运行结果如下图所示: 问题原因: 如代码 hw_decode_cuvid_origin.c 中所示, 直接通过transfer_data 将gpu 中解码后的frame download到 系统内存,则系统内存中的frames ...
if (!check_image_pointers((const uint8_t* const*)dst, c->dstFormat, dstStride)) { av_log(c, AV_LOG_ERROR, "bad dst image pointers\n"); return 0; } if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) { av_log(c, AV_LOG_ERROR, "Slices ...
FFmpegFrameGrabber Issue: setFrameNumber and then grabImage, "bad src image pointers"#236 Closed gkozyryatskyyclosed this ascompletedNov 25, 2017 gkozyryatskyyreopened thisNov 25, 2017 @saudet How can I check this? Open video with the player and change time?
* NOTE: Except for hwaccel formats, pointers not needed by the format * MUST be set to NULL. */ uint8_t *data[AV_NUM_DATA_POINTERS]; /** * For video, size in bytes of each picture line. * For audio, size in bytes of each plane. ...
* The fields of the given AVPicture are filled in by using the 'ptr' address * which points to the image data buffer. Depending on the specified picture * format, one or multiple image data pointers and line sizes will be set. * If a planar format is specified, several pointers...
uint8_t *data[AV_NUM_DATA_POINTERS]; //存储原始帧数据(视频的YUV, RGB, 音频的PCM),数组的每个元素是一个指针,指向了AVBufferRef *buf中的data //对于packet格式,都存在data[0]中,好比yuv,data[0]中就存的是yuvyuvyuv...,pcm则是lrlrlrlr... ...
The allocated image buffer has to be freed by using av_freep(&pointers[0]). Parameters align the value to use for buffer size alignment Returns the size in bytes required for the image buffer, a negative error code in case of failure ...
问ffmpeg Bmp to yuv :在sws_scale坠毁EN的上下文：我有一个连续的位图，我想把它们编码成一种光视频...
bad_src_img_pointers.png问题原因:如代码 hw_decode_cuvid_origin.c 中所示, 直接通过transfer_data 将gpu 中解码后的frame download到 系统内存,则系统内存中的frames piex->format 仍为 AV_PIX_FMT_CUDA ,而 AV_PIX_FMT_CUDA 是gpu 显存中存储的解码后的帧像素格式 所以通过 sws_scale 是不能直接change...