WebJan 20, 2016 · The setup, ProcessInput and ProcessOutput are all returning S_OK but the sample from ProcessOutput is NULL and the status is MFT_OUTPUT_DATA_BUFFER_NO_SAMPLE. Any idea what could be wrong? This is the output: Intel® Quick Sync Video H.264 Encoder MFT Start encoding ProcessInput frame … WebJun 26, 2024 · Although calling cmd-line ffmpeg with the exact same filter string just works without added parameters, it seems that in code you need to also set the encoding context options in case of scaling. In the test code above they would be: enc_ctx->height = dec_ctx->height * scale_value; enc_ctx->width = dec_ctx->width * scale_value;
FLUSH ENCODER - Triveneta Sistemi
WebFlushing the stream will not flush its underlying encoder unless you explicitly call Flush or Close. Setting AutoFlush to true means that data will be flushed from the buffer to the … WebOct 28, 2024 · The problem is: the last frame of footage is dropped after ffmpeg compression. Screenshot is here: screenshot_ffmpeg_drop frame. I tried to use full preferences I need, but the problem is the same. ffmpeg -i input.mp4 -c:v libx264 -vf scale=1280:720 -preset fast -crf 29 -r 25 -c:a copy output.mp4. logfile during ffmpeg … meter to foot ratio
StreamWriter.Flush Method (System.IO) Microsoft Learn
WebOct 25, 2024 · 1) do not call flush. But the encoder buffers frames inside and gives some packets only after flushing (using h.264 with b-frames), while some packets get into the … WebMay 30, 2024 · /* flush the encoder */ encode (c, NULL, pkt, f); I too tried to use VLC, and also QuickTime, with no luck. Then I noticed ffplay tool in the ffmpeg's bin folder, that would play all videos produced by that example, with different codecs. My point is - the issue might be with the viewer, not with the video file. Share Improve this answer Follow WebNov 25, 2024 · Encoder: /* flush the encoder */ encode (c, NULL, pkt, f); I can not understand why the examples do this. It seems like sending nullptr as frame or packet does flushing but what is flushing? What does flushing a codec mean in the context of FFmpeg? ffmpeg Share Improve this question Follow edited Nov 25, 2024 at 15:32 asked Nov 25, … meter to feet inch