[FFmpeg-user] hflip so slooooooooow

Hi all, should horizontal flipping be as slow as this: frame=27067 fps= 12 q=28.0 size= 143993kB time=00:18:06.27 bitrate=1085.9kbits/s dup=0 drop=35 speed=0.47x the command was: $ ~/bin/ffmpeg.d/ffmpeg -i video_mnt13.mp4 -vf "hflip" -y video_mnt13-hflip-m1B6z-54q_0.mp4 ffmpeg version

Re: [FFmpeg-user] Chroma problem converting mp4 to prores

Sorry about the slow response, that has fixed the issue, thanks chronek! The file still seems a bit soft in quality though. I have tried turning the -qscale right down to 1 and adjusting the bits_per_mb up to 2400 and the picture improved but it still wasn’t 100%, but the file grew to 2.5x the

Re: [FFmpeg-user] filter: subtitles and special chars

Le duodi 12 ventôse, an CCXXV, Moritz Barsnick a écrit : > Are you sure? I see no "In-Reply-To:" header. I do see a "References:" > header, but it seems to (sort of) refer to its own Message-ID. This > should be fine. What is your mai user agent showing? My bad, I was fooled by the strange

Re: [FFmpeg-user] filter: subtitles and special chars

Am 02.03.2017 um 21:21 schrieb Nicolas George: Le duodi 12 ventôse, an CCXXV, Mike F a écrit : Hello, Hello. You just hijacked a thread. It is forbidden on this list. I suggest you re-read the posting guidelines carefully in order to not do anything forbidden again WTF - show the message

Re: [FFmpeg-user] filter: subtitles and special chars

On Thu, Mar 02, 2017 at 21:21:01 +0100, Nicolas George wrote: > Hello. You just hijacked a thread. It is forbidden on this list. I > suggest you re-read the posting guidelines carefully in order to not do > anything forbidden again. Are you sure? I see no "In-Reply-To:" header. I do see a

Re: [FFmpeg-user] filter: subtitles and special chars

Hello Nicolas, Let me start with this first, to clarify. < Hello. You just hijacked a thread. It is forbidden on this list. I suggest you re-read the posting guidelines carefully in order to not do anything forbidden again. > I am aware of the rules... and none of: "thread hijacking (that is,

Re: [FFmpeg-user] filter: subtitles and special chars

Le duodi 12 ventôse, an CCXXV, Mike F a écrit : > Hello, Hello. You just hijacked a thread. It is forbidden on this list. I suggest you re-read the posting guidelines carefully in order to not do anything forbidden again. > The only small issues is that the subtitle filename.srt can not use >

[FFmpeg-user] filter: subtitles and special chars

Hello, Due to the fact that I cannot get "-i my.srt" and "sub_charenc" to work, even after ( I guess ) satisfying 'iconv' requirements during the compile of N-83701-g70ebc05-1 20170205, I found the "subtitles" filter and 'charenc=CP1250' perfectly doing the job. The only small issues is that

[FFmpeg-user] h264_omx and non-existing PPS 0 referenced

Trying to stream a webcam through rtp with a raspberry pi. Cating the SDP file on my desktop, and launching ffplay: ffplay sdp.out then streaming out this way: ffmpeg -i /dev/video0 -c:v h264_omx -f rtp rtp://192.168.0.101:1234 works perfectly. But If I launch ffmpeg first THEN

Re: [FFmpeg-user] How to specify Audio bit depth for test sources?

Thank you. On 02.03.2017 19:51, Carl Eugen Hoyos wrote: > 2017-03-02 17:48 GMT+01:00 Carl Eugen Hoyos : >> 2017-03-02 16:24 GMT+01:00 Basin Ilya : >>> Hi. >>> Different test sources have different bit depth: >>> >>> ffplay -f lavfi aevalsrc="0" >>>

Re: [FFmpeg-user] How to specify Audio bit depth for test sources?

2017-03-02 17:48 GMT+01:00 Carl Eugen Hoyos : > 2017-03-02 16:24 GMT+01:00 Basin Ilya : >> Hi. >> Different test sources have different bit depth: >> >> ffplay -f lavfi aevalsrc="0" >> # Audio: pcm_f64le > > Output of the aevalsrc filter is

Re: [FFmpeg-user] How to specify Audio bit depth for test sources?

2017-03-02 16:24 GMT+01:00 Basin Ilya : > Hi. > Different test sources have different bit depth: > > ffplay -f lavfi aevalsrc="0" > # Audio: pcm_f64le Output of the aevalsrc filter is AV_SAMPLE_FMT_DBLP. > ffplay -f lavfi anullsrc > # Audio: pcm_u8 Output of

Re: [FFmpeg-user] ogg encoder always adds 128-255 extra samples

2017-03-02 17:19 GMT+01:00 Basin Ilya : > Nevermind. The problem is not with quantization, I revised my > question in "ogg encoder always adds 128-255 extra samples". What is an "ogg encoder"? If you want support on this mailing list, please: Test current FFmpeg git head

Re: [FFmpeg-user] h264_mp4toannexb unable to split h264_qsv-encoded files?

2017-03-02 17:11 GMT+01:00 Hugo Garbez : > I'm using FFmpeg 3.2.4 on Debian 8.7, and I have some problems > with h264_qsv and HLS. Please test current FFmpeg git head, provide command lines including complete, uncut console output and short input sample files. Why are you not

Re: [FFmpeg-user] Video and Audio is off-sync on Decklink SDI output

Dear Carl Sorry for late response as I dont know why somehow google email filtered your previous emails. The reason I used vf setpts filter is, if not, the image on SDI outout will lag alot. I played around and found out if I use vf setpts then I can fix lagging issue but its lipsync. Here is

Re: [FFmpeg-user] ogg encoder always adds 128-255 extra samples

I mean, with concat protocol On 02.03.2017 19:24, Bouke / VideoToolShed wrote: > >> On 02 Mar 2017, at 17:19, Basin Ilya wrote: >> >> You can't concatenate .wav files > > Huh? Uncompressed PCM seems easy enough to cat, and I have done so a zillion > times with FFmpeg… >

Re: [FFmpeg-user] ogg encoder always adds 128-255 extra samples

> On 02 Mar 2017, at 17:19, Basin Ilya wrote: > > You can't concatenate .wav files Huh? Uncompressed PCM seems easy enough to cat, and I have done so a zillion times with FFmpeg… Bouke ___ ffmpeg-user mailing list

[FFmpeg-user] h264_mp4toannexb unable to split h264_qsv-encoded files?

Hello, I'm using FFmpeg 3.2.4 on Debian 8.7, and I have some problems with h264_qsv and HLS. I'm splitting my files for HLS with the following command: $ ffmpeg -i example.mp4 -codec copy -map 0 -bsf:v h264_mp4toannexb -hls_time 5 -hls_init_time 1 -hls_list_size 0 example.m3u8 When example.mp4

[FFmpeg-user] ogg encoder always adds 128-255 extra samples

Hi. I'm trying to create a set of chainable ogg files out of a long wav file. However, the produced ogg files are always 128-255 samples longer than the source PCM data and the extra data looks like anti-click or fade-out. See the attached image. test0 was made directly. test1 was made via an

Re: [FFmpeg-user] Video and Audio is off-sync on Decklink SDI output

> On 22 Feb 2017, at 23:32, Tung Tran wrote: > > Dear all > > I am testing to setup a decoder with ffmpeg, take live stream in > (RTMP/HLS,.) and output to Decklink SDI. > Its working but I have the issue of audio and video is off-sync on decklink > SDI output, I tried to

Re: [FFmpeg-user] minimal nb_sambles in ogg frame

2017-03-02 10:34 GMT+01:00 Basin Ilya : > test5.wav Apart from "complete, uncut console output missing", I would have expected that you cannot concatenate ogg files: Am I wrong? Carl Eugen ___ ffmpeg-user mailing list

[FFmpeg-user] minimal nb_sambles in ogg frame

Hi. I'm splitting a .wav file into a set of chainable .ogg files all having 1 second duration. I'm using input flags: "-ss n -t 1" When I concatenate these ogg files, the resulting clip is slightly longer than the original. Is it because the minimal nb_sambles in ogg frame is 128 and a set of