[FFmpeg-user] How create h264 frames and acc audio frames from a video/webcam

2021-01-05 Thread Vijay Rakesh Munganda
Hi, I’m new to ffmpeg, how create h264 frames and acc audio frames from a video/webcam for streaming to the cloud. I searched online but I couldn’t find. Thanks & Regards, Vijay Rakesh ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] Subtitle questions...

2021-01-05 Thread Mark Filipak (ffmpeg)
On 01/05/2021 11:17 PM, Matt Zagrabelny via ffmpeg-user wrote: On Tue, Jan 5, 2021 at 6:48 PM Mark Filipak (ffmpeg) wrote: On 01/05/2021 04:21 PM, Mason Loring Bliss wrote: Hi all. Hello, Mason, Welcome. My ultimate goal is to keep my DVD collection in digital form, with the actual

Re: [FFmpeg-user] Subtitle questions...

2021-01-05 Thread Matt Zagrabelny via ffmpeg-user
On Tue, Jan 5, 2021 at 6:48 PM Mark Filipak (ffmpeg) wrote: > On 01/05/2021 04:21 PM, Mason Loring Bliss wrote: > > Hi all. > > Hello, Mason, > > Welcome. > > > My ultimate goal is to keep my DVD collection in digital form, with the > > actual disks sitting in a box in the cellar, but I want to

Re: [FFmpeg-user] ffmpeg qsv performance well below expected

2021-01-05 Thread Xiang, Haihao
On Fri, 2021-01-01 at 17:12 -0700, dan wrote: > In running ubuntu with an i3-10100 > > I'm able to transcode 2 MPEG2 to h.265 using the following command > ffmpeg -hwaccel qsv -i http://hdhomerun:5004/auto/v2.2.ts -c:v > hevc_qsv -c:a copy -profile:v main -global_quality 30 -g 48 > -keyint_min 48

Re: [FFmpeg-user] Subtitle questions...

2021-01-05 Thread Mark Filipak (ffmpeg)
On 01/05/2021 04:21 PM, Mason Loring Bliss wrote: Hi all. Hello, Mason, Welcome. My ultimate goal is to keep my DVD collection in digital form, with the actual disks sitting in a box in the cellar, but I want to preserve as much quality as possible, so I've been generally just storing the

Re: [FFmpeg-user] Subtitles disappear

2021-01-05 Thread Reino Wijnsma
On 2021-01-05T12:18:34+0100, Cecil Westerhof via ffmpeg-user wrote: > I tried it. But at the moment the files generated are about 20% bigger. libmp3lame's -q:a 9 compared to what? By default without any additional options... ffmpeg -i input.wav [-c:a libmp3lame] output.mp3 ffmpeg -i input.wav

Re: [FFmpeg-user] cant stream audio and video at the same time

2021-01-05 Thread Gisbert Haas
Hi, as I tried to explain, on the link you provided I learned about the v4l2 timestamps option "-ts abs" I'm now using: Linux Mint Laptop: ffmpeg -f alsa -i default -f v4l2 -input_format yuv420p -video_size 1280x720 -ts abs -i /dev/video0 -c:v libx264 -b:v 8M -c:a aac -f mpegts 

[FFmpeg-user] Subtitle questions...

2021-01-05 Thread Mason Loring Bliss
Hi all. I've asked a couple times on Freenode, but I think my timing is bad, so I'll ask some questions here instead. My ultimate goal is to keep my DVD collection in digital form, with the actual disks sitting in a box in the cellar, but I want to preserve as much quality as possible, so I've

Re: [FFmpeg-user] ffmpeg qsv performance well below expected

2021-01-05 Thread dan
On Tue, Jan 5, 2021 at 9:53 AM andrei ka wrote: > > well, intel mentions h264/h265 9/1 perfs ratio on older cpus here: > https://www.intel.com/content/dam/www/public/us/en/documents/white-papers/cloud-computing-quicksync-video-ffmpeg-white-paper.pdf > so, chances are this is how it is, veven if

Re: [FFmpeg-user] ffmpeg qsv performance well below expected

2021-01-05 Thread andrei ka
well, intel mentions h264/h265 9/1 perfs ratio on older cpus here: https://www.intel.com/content/dam/www/public/us/en/documents/white-papers/cloud-computing-quicksync-video-ffmpeg-white-paper.pdf so, chances are this is how it is, veven if you're supposed to have enough vid memory to do 2hd & and

Re: [FFmpeg-user] cant stream audio and video at the same time

2021-01-05 Thread Gisbert Haas
Hello Carl Eugen, its the same behavior when testing with the git version. Please see below: ffmpeg -f alsa -ac 2 -i hw:2,0 -f v4l2 -input_format yuv420p -video_size 1280x720 -i /dev/video0 -c:v h264_v4l2m2m -b:v 8M -c:a aac -f mpegts  udp://230.10.1.1:5700 ffmpeg version

[FFmpeg-user] Setup a rtmps server with nginx + ffmpeg.

2021-01-05 Thread Hongyi Zhao
On Ubuntu20.10, I've compiled the latest git master version of FFmpeg with the native TLS/SSL support through the following configuration option: $ ./configure --enable-openssl See the following verification results for more info: $ ffmpeg -protocols |& egrep -i 'in|out|rtmps' Input: rtmps

Re: [FFmpeg-user] Subtitles disappear

2021-01-05 Thread Cecil Westerhof via ffmpeg-user
Reino Wijnsma writes: > On 2021-01-04T15:52:39+0100, Cecil Westerhof via ffmpeg-user > wrote: >> Input #0, matroska,webm, from 'input.mkv': >> [...] >> Stream #0:2(eng): Subtitle: subrip (default) > > Mp4doesn't support subrip. Please use -c:s mov_text. Works like a charm. Thanks. > I