[FFmpeg-user] Astats multitrack audio

2025-07-30 Thread MediaStream
Greetings and Salutations! Have two audio tracks in SRT feed, sometimes more, sometimes less, sometimes 2.0, 4.0 or 5.1 channels. Is there any method to ID audio tracks in astat report? `ffmpeg -i "srt://foo/bar" -map 0:a -af "astats=metadata=1:reset=1:measure_perchannel=RMS_peak:measure_overall

[FFmpeg-user] x265 alpha bounty

2024-12-04 Thread MediaStream
https://trac.ffmpeg.org/ticket/11331 Looking for a few days' effort from a willing developer to add x265 alpha channel feature to FFmpeg please, similar to videotoolbox HEVC and VPX Thank you! Dennis ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org h

[FFmpeg-user] webm transparency in a movie filter

2024-09-01 Thread MediaStream
Hi looking for a method to force libvpx-vp9 decoder when using movie filter. This works well, alpha is crystal: `ffmpeg -i udp -c:v libvpx-vp9 -i ov1.webm -filter_complex [0:v][1:v]overlay -t 5 rtmp` Same file, same stream, but doesn't work. Screen turns black with graphics on top: `ffmpeg -i ud

[FFmpeg-user] Statci compile of FFmpeg 7.0 with OpenCV 4.9.0

2024-04-11 Thread MediaStream
Greetings and Salutations! Attempting to compile FFmpeg 7.0 (April 10 snapshot) with OpenCV and others statically. Running on Ubuntu server 20 and binary is for Linux x86 machines. Config.log is here: https://www.file.io/D8Hl/download/zBoNM5VCLfZJ 1. Compiled and installed OpenCV 4.9.0 with: `

[FFmpeg-user] 4.3.1 configure error

2020-10-30 Thread MediaStream
Greeting and salutations! Attempting to build *static* FFmpeg 4.3.1 on AWS EC2 Amazon-Linux 2 instance. x265 v.3.4 x264 latest stable vpx 1.9.0 fdk_aac 2.0.1 aom latest master mp3lame 3.100 gcc 7.3.1 All glibc and development libs installed with yum... Complied all codec libs with "--disable-share

[FFmpeg-user] SCTE-35 implementation already (bounty)

2020-09-01 Thread MediaStream
Looking for SCTE-35 pass through implementation: 1. Extract SCTE-35 from MPEG-TS. 2. Translate timing of the original SCTE-35 events to match timing in the output file appropriately or keep timing as is. 3. Signal encoder to force key frames at the boundaries of the SCTE-35 event. 4. Inject SCTE-3

Re: [FFmpeg-user] Capturing the output of volumedetect as JSON

2018-10-04 Thread MediaStream
On Wed, Oct 3, 2018 at 5:55 PM redneb wrote: > On Wed, Oct 3, 2018 at 8:36 PM Paul B Mahol wrote: > > > > On 10/3/18, redneb wrote: > > > Hi *, > > > > > > ffprobe can nowadays produce JSON output, which is quite convenient > > > sometimes. I am trying to use that feature in order to ge