ffmpeg -i 1_1.mp4 -an -vcodec h264 -qp 0 video_h264ll.mp4 h265 ffmpeg -i 1_1.mp4 -an -vcodec libx265 -x265-params lossless=1 video_h265llo.mp4 通过对原始文件和转码文件的切图后逐像素比较完全一致 ffmpeg -i 1_1.mp4 -f image2 output%d.png ffmpeg -ss 1 -i video_h264ll.mp4...
cv::Mat outMat = ffv.H265FrameToCVMat(pstPack[i].pu8Addr, pstPack[i].u32Len); if ...
...S = Lossless compression // 无损压缩 1. 2. 3. 4. 5. 6. 7. 8. h264是编码名称,后面H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10应该都是别称 decoders是解码器 (h264 h264_qsv h264_cuvid) encoders是编码器 (libx264 libx264rgb h264_amf h264_nvenc h264_qsv nvenc nvenc_h...
虽然在硬件性能上,P4比GTX1070显存略少,主频略低,CUDA的数量多出了33%,但从实验结果上看除了h265->h264结果持平外,P4表现都要逊色于GTX1070,这和官网所言“编解码器独立于CUDA核”相一致。 6. 源码分析 集成在ffmpeg框架内的视频编解码器需要定义一个AVCodec结构体包含(私有结构体AVClass、三个函数等) 6.1 ...
cbs.h cbs_av1.c cbs_av1.h cbs_av1_syntax_template.c cbs_bsf.c cbs_bsf.h cbs_h264.h cbs_h2645.c cbs_h2645.h cbs_h264_syntax_template.c cbs_h265.h cbs_h265_syntax_template.c cbs_internal.h cbs_jpeg.c cbs_jpeg.h cbs_jpeg_syntax_template.c cbs_mpeg2.c cbs_mpeg...
1. 转换成H264编解码 [plain] view plain copy print? ffmpeg -i input_file -vcodec h264 output_file ffmpeg -i input_file -vcodec h264 output_file 其中-i 表示输入文件, -vcodec h264 表示视频编解码方式为 H264。 2. 转换成H265编解码 [plain] view plain copy print? ffmpeg -i input_file...
…..S = Lossless compression 3.3 编解码器使用方法 h265编码测试 (1). ffmpeg -s 1920x1080 -pix_fmt yuv420p -i BQTerrace_1920x1080_60.yuv -vcodec hevc_nvenc -r 60 -y 2_60.265 (2). ffmpeg -s 1920x1080 -pix_fmt yuv420p -i BQTerrace_1920x1080_60.yuv -vcodec hevc_nvenc -r 30...
A hands-on introduction to video technology: image, video, codec (av1, vp9, h265) and more (ffmpeg encoding). Translations: 🇺🇸 🇨🇳 🇯🇵 🇮🇹 🇰🇷 🇷🇺 🇧🇷 🇪🇸 audiolearningtutorialcompressionh264videoffmpeghlsguidehandsondashcodecvideo-codech265adaptive-streaming...
Add music to a video (or replace existing audio track) Combine audio and video tracks from separate recordings Include an external subtitle into a video Quickly change a H264/H265 MKV video to MOV or MP4 for playback on iPhone Import a list of cut times from other tool as a EDL (edit...
"//third_party/ffmpeg/libavcodec/h264dsp.c", "//third_party/ffmpeg/libavcodec/h264idct.c", "//third_party/ffmpeg/libavcodec/h264pred.c", "//third_party/ffmpeg/libavcodec/h264qpel.c", # "//third_party/ffmpeg/libavcodec/h265_metadata_bsf.c", # "//third_party/ffmpeg/liba...