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Tag Archive for ffmpeg

Duplicated PTS value when using rtsp transport UDP (H264 FU-A)

I’m implementing a packet loss counter based on the PTS from the av_packet, and it works fine when using RTSP/TCP as the transport mode. However, when I switched to RTSP/UDP, two packets consistently share the same PTS. This puzzled me because I assumed that av_read_frame would parse the stream and provide “valid” packets.

Duplicated PTS value when using rtsp transport UDP (H264 FU-A)

I’m implementing a packet loss counter based on the PTS from the av_packet, and it works fine when using RTSP/TCP as the transport mode. However, when I switched to RTSP/UDP, two packets consistently share the same PTS. This puzzled me because I assumed that av_read_frame would parse the stream and provide “valid” packets.

FFMPEG – RADEON – VAAPI – Alfa channel overlay

Ok I got to my limit so decided to ask for help. I’m running a python app in a docker container. It works fine with VAAPI and hardware acceleration(AMD Radeon GPU) till I use filter complex. This is my command

DirectX D3D11 Hardware Scaling Filter

This question was migrated from Super User because it can be answered on Stack Overflow. Migrated 2 hours ago. I’m trying to implement a Hardware scaling filter (vf_scale_d3d11) using the VideoProcessBlt D3D11 DDI, and also add PIX_FMT_D3D11 support for the MediaFoundation Encoder (mfenc). Initially, there were a lot of “Static surface pool size exceeded”. decode_receive_frame_internal […]

ffmpeg smooth scroll in smooth loop

I need help creating code for ffmpeg. I have a picture with dimensions x000*1080 (the length will be more than 1920, but it depends on the picture). I want to scroll it endlessly and seamlessly (the picture repeats)

ffmpeg smooth scroll in smooth loop

I need help creating code for ffmpeg. I have a picture with dimensions x000*1080 (the length will be more than 1920, but it depends on the picture). I want to scroll it endlessly and seamlessly (the picture repeats)

ffmpeg smooth scroll in smooth loop

I need help creating code for ffmpeg. I have a picture with dimensions x000*1080 (the length will be more than 1920, but it depends on the picture). I want to scroll it endlessly and seamlessly (the picture repeats)