Re: [FFmpeg-user] ffmpeg reported fps different than actual file's
On 8/3/2017 2:24 AM, James Girotti wrote: On Wed, Aug 2, 2017 at 3:09 PM, tasos wrote: Hello again. A lot of information and i'm trying to process them. I know a few basic things about video processing in general. Anyway,the specific dvb source channel is quite strange or at least this is how it looks to me. Is this the ffprobe output from the file or your DVB capture device? I politely request you provide full command lines and output in the future. That was from the file. Can you dump directly from the device to file without using ffmpeg? I.E.: Yes i can. That should make troubleshooting much easier! Glad you're able to do that. ffprobe -v error -select_streams v:0 -show_entries \ stream=r_frame_rate,avg_frame_rate -of default=nw=1 ./foo.ts [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavai
Re: [FFmpeg-user] ffmpeg reported fps different than actual file's
On Wed, Aug 2, 2017 at 3:09 PM, tasos wrote: > Hello again. > A lot of information and i'm trying to process them. > I know a few basic things about video processing in general. > Anyway,the specific dvb source channel is quite strange or at least this > is how it looks > to me. > >> Is this the ffprobe output from the file or your DVB capture device? I >> politely request you provide full command lines and output in the future. >> > > That was from the file. > > > Can you dump directly from the device to file without using ffmpeg? I.E.: >> > Yes i can. > That should make troubleshooting much easier! Glad you're able to do that. > > ffprobe -v error -select_streams v:0 -show_entries \ >> stream=r_frame_rate,avg_frame_rate -of default=nw=1 ./foo.ts >> >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] decode_slice_header error >> [h264 @ 0x4088420] no frame! >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] decode_slice_header error >> [h264 @ 0x4088420] no frame! >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] decode_slice_header error >> [h264 @ 0x4088420] no frame! >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] decode_slice_header error >> [h264 @ 0x4088420] no frame! >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] decode_slice_header error >> [h264 @ 0x4088420] no frame! >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] decode_slice_header error >> [h264 @ 0x4088420] no frame! >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] decode_slice_header error >> [h264 @ 0x4088420] no frame! >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] decode_slice_header error >> [h264 @ 0x4088420] no frame! >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] decode_slice_header error >> [h264 @ 0x4088420] no frame! >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] decode_slice_header error >> [h264 @ 0x4088420] no frame! >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] decode_slice_header error >> [h264 @ 0x4088420] no frame! >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] decode_slice_header error >> [h264 @ 0x4088420] no frame! >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] decode_slice_header error >> [h264 @ 0x4088420] no frame! >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] non-existing PPS 0 referenced >> [h264 @ 0x4088420] SPS unavailable in decode_picture_timing >> [h264 @ 0x4088420] no
Re: [FFmpeg-user] ffmpeg reported fps different than actual file's
Hello again. A lot of information and i'm trying to process them. I know a few basic things about video processing in general. Anyway,the specific dvb source channel is quite strange or at least this is how it looks to me. Is this the ffprobe output from the file or your DVB capture device? I politely request you provide full command lines and output in the future. That was from the file. Can you dump directly from the device to file without using ffmpeg? I.E.: Yes i can. ffprobe -v error -select_streams v:0 -show_entries \ stream=r_frame_rate,avg_frame_rate -of default=nw=1 ./foo.ts [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] SPS unavailable in decode_picture_timing [h264 @ 0x4088420] non-existing PPS 0 referenced [h264 @ 0x4088420] decode_slice_header error [h264 @ 0x4088420] no frame! [h264 @ 0x4088
Re: [FFmpeg-user] ffmpeg reported fps different than actual file's
On Tue, Aug 1, 2017 at 3:22 PM, tasos wrote: > Hello and thanks for replying. > This is what ffprobe gives me(i should have mentioned it earlier) > > Stream #0:0: Video: h264 (High) (H264 / 0x34363248), yuv420p(tv, >> bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], 5593 kb/s, 50 fps, 25 tbr, >> 50 tbn, 50 tbc >> > > Is this the ffprobe output from the file or your DVB capture device? I politely request you provide full command lines and output in the future. > > On 8/2/2017 1:01 AM, Simon Brown wrote: > >> On 1 August 2017 at 22:59, tasos wrote: >> >> Hello. >>> I get a video file with >>> >>> ffmpeg -y -i /dev/dvb/adapter0/dvr0 -c:v copy -c:a copy foo.avi >>> This file is displayed on vlc as a 50fps video file. >>> >>> Input #0, mpegts, from '/dev/dvb/adapter0/dvr0': >>> Duration: N/A, start: 7972.129344, bitrate: N/A Program 1 Stream #0:0[0x6e]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:1[0x78]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 128 kb/s Stream #0:2[0x82]: Audio: mp3 ([3][0][0][0] / 0x0003), 0 channels, s16p >>> >>> Can you dump directly from the device to file without using ffmpeg? I.E.: dd if=/dev/dvb/adapter0/dvr0 of=./foo.ts bs=1M count=100 Then analyze that file with ffprobe and VLC to see what the reported frame-rate is. If you can't dump directly from the device node to file, then try keeping the same container/format (I add "-t 30" so that we only get 30 seconds of video): ffmpeg -i /dev/dvb/adapter0/dvr0 -t 30 -c copy -f mpegts ./foo.ts Example FFPROBE output from a random interlaced video on my computer: ffprobe -v error -select_streams v:0 -show_entries stream=r_frame_rate,avg_frame_rate -of default=nw=1 ./JG-FOO.ts r_frame_rate=6/1001 avg_frame_rate=3/1001 VLC reports a frame-rate of 3/1001 for JG-FOO.ts >>> My guess is that VLC is misreporting it, and it's 50 fields per second, >>> >> interlaced, and so FFMpeg is reporting it as 25 frames per second >> correctly. >> > Let's do an experiment; my hypothesis is that when it is muxed to AVI the frame-rate is changed for some reason. Are half-frames/fields counted as full-fields/frames??? Take JG-FOO.ts from above and mux to AVI: ffmpeg -v info -ss 5:00 -i ./JG-FOO.ts -c copy -t 10 ./JG-FOO.avi Input #0, mpegts, from 'JG-FOO.ts': Duration: 01:05:01.45, start: 1.40, bitrate: 16261 kb/s Program 1 Metadata: service_name: Service01 service_provider: FFmpeg Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, top first), 1920x1080 [SAR 1:1 DAR 16:9], Closed Captions, 29.97 fps, 59.94 tbr, 90k tbn, 59.94 tbc Stream #0:1[0x101]: Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, 5.1(side), fltp, 384 kb/s Output #0, avi, to './JG-FOO.avi': Metadata: ISFT: Lavf57.56.101 Stream #0:0: Video: mpeg2video (Main) (mpg2 / 0x3267706D), yuv420p(tv, top first), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 29.97 fps, 59.94 tbr, 59.94 tbn, 59.94 tbc Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, 5.1(side), 384 kb/s Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy) Press [q] to stop, [?] for help [avi @ 0xbf2690] Non-monotonous DTS in output stream 0:0; previous: 127, current: 127; changing to 128. This may result in incorrect timestamps in the output file. [avi @ 0xbf2690] Non-monotonous DTS in output stream 0:0; previous: 277, current: 277; changing to 278. This may result in incorrect timestamps in the output file. [avi @ 0xbf2690] Non-monotonous DTS in output stream 0:0; previous: 427, current: 427; changing to 428. This may result in incorrect timestamps in the output file. frame= 242 fps=0.0 q=-1.0 Lsize=7660kB time=00:00:10.01 bitrate=6268.5kbits/s speed= 406x video:7154kB audio:481kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.316611% Now take a look at the frame-rates: ffprobe -v error -select_streams v:0 -show_entries stream=r_frame_rate,avg_frame_rate -of default=nw=1 ./JG-FOO.avi r_frame_rate=6/1001 avg_frame_rate=6/1001 So my results show the frame rates have been doubled. Also, it shows 6/1001 FPS using VLC. I think that's basically what you're seeing also Try setting rate: ffmpeg -v info -ss 5:00 -i ./JG-FOO.ts -c copy -t 10 -r 3/1001 ./JG-FOO-r30.avi Input #0, mpegts, from 'JG-FOO.ts': Duration: 01:05:01.45, start: 1.40, bitrate: 16261 kb/s Program 1 Metadata: service_name: Service01 service_provider: FFmpeg Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, top first), 1920x1080 [SAR 1:1 DAR 16:9], Closed Captions, 29.97 fps, 59.94 tbr, 90k tbn, 59.94 tbc Stream #0:1[0x101]: Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, 5.1(side), fltp, 384 kb/s Output #0, avi, to './JG-FOO-r30.avi'
Re: [FFmpeg-user] ffmpeg reported fps different than actual file's
Hello and thanks for replying. This is what ffprobe gives me(i should have mentioned it earlier) Stream #0:0: Video: h264 (High) (H264 / 0x34363248), yuv420p(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], 5593 kb/s, 50 fps, 25 tbr, 50 tbn, 50 tbc On 8/2/2017 1:01 AM, Simon Brown wrote: On 1 August 2017 at 22:59, tasos wrote: Hello. I get a video file with ffmpeg -y -i /dev/dvb/adapter0/dvr0 -c:v copy -c:a copy foo.avi This file is displayed on vlc as a 50fps video file. Input #0, mpegts, from '/dev/dvb/adapter0/dvr0': Duration: N/A, start: 7972.129344, bitrate: N/A Program 1 Stream #0:0[0x6e]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:1[0x78]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 128 kb/s Stream #0:2[0x82]: Audio: mp3 ([3][0][0][0] / 0x0003), 0 channels, s16p 25 fps,25 tbr. So my question is,is this correct? Thanks! My guess is that VLC is misreporting it, and it's 50 fields per second, interlaced, and so FFMpeg is reporting it as 25 frames per second correctly. I have seen something similar myself between the two. Regards, Simon ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] ffmpeg reported fps different than actual file's
On 1 August 2017 at 22:59, tasos wrote: > Hello. > I get a video file with > > ffmpeg -y -i /dev/dvb/adapter0/dvr0 -c:v copy -c:a copy foo.avi >> > This file is displayed on vlc as a 50fps video file. > > Input #0, mpegts, from '/dev/dvb/adapter0/dvr0': >> Duration: N/A, start: 7972.129344, bitrate: N/A >> Program 1 >> Stream #0:0[0x6e]: Video: h264 (High) ([27][0][0][0] / 0x001B), >> yuv420p(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 >> tbr, 90k tbn, 50 tbc >> Stream #0:1[0x78]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, >> stereo, s16p, 128 kb/s >> Stream #0:2[0x82]: Audio: mp3 ([3][0][0][0] / 0x0003), 0 channels, >> s16p >> > 25 fps,25 tbr. > So my question is,is this correct? > Thanks! > > My guess is that VLC is misreporting it, and it's 50 fields per second, interlaced, and so FFMpeg is reporting it as 25 frames per second correctly. I have seen something similar myself between the two. Regards, Simon ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-user] ffmpeg reported fps different than actual file's
Hello. I get a video file with ffmpeg -y -i /dev/dvb/adapter0/dvr0 -c:v copy -c:a copy foo.avi This file is displayed on vlc as a 50fps video file. Input #0, mpegts, from '/dev/dvb/adapter0/dvr0': Duration: N/A, start: 7972.129344, bitrate: N/A Program 1 Stream #0:0[0x6e]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:1[0x78]: Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 128 kb/s Stream #0:2[0x82]: Audio: mp3 ([3][0][0][0] / 0x0003), 0 channels, s16p 25 fps,25 tbr. So my question is,is this correct? Thanks! ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
