Opened 13 years ago
Closed 13 years ago
#2098 closed defect (invalid)
ffmpeg force transcoding from h264 to mpeg2video while stream mpegts from h264 file
| Reported by: | Gery | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | undetermined |
| Version: | unspecified | Keywords: | |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description (last modified by )
I am trying to stream over mpegts/udp h264 from file
Problem that ffmpeg force transcoding h264 to mpeg2video
ffmpeg started on 2013-01-02 at 15:17:57
Report written to "ffmpeg-20130102-151757.log"
Command line:
ffmpeg -report -re -i ./transformers/trans3-720p.h264 -c:v copy -f mpegts udp://192.168.1.2:5004
ffmpeg version N-48393-g8bc7422 Copyright (c) 2000-2013 the FFmpeg developers
built on Jan 2 2013 14:48:50 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration: --prefix=/opt/x86 --enable-gpl --enable-shared --enable-libx264 --enable-libxvid --extra-cflags=-I/opt/x86/include --extra-ldflags=-L/opt/x86/lib
libavutil 52. 13.100 / 52. 13.100
libavcodec 54. 85.100 / 54. 85.100
libavformat 54. 59.100 / 54. 59.100
libavdevice 54. 3.102 / 54. 3.102
libavfilter 3. 30.102 / 3. 30.102
libswscale 2. 1.103 / 2. 1.103
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Splitting the commandline.
Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'.
Reading option '-re' ... matched as option 're' (read input at native frame rate) with argument '1'.
Reading option '-i' ... matched as input file with argument './transformers/trans3-720p.h264'.
Reading option '-c:v' ... matched as option 'c' (codec name) with argument 'copy'.
Reading option '-f' ... matched as option 'f' (force format) with argument 'mpegts'.
Reading option 'udp://192.168.1.2:5004' ... matched as output file.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option report (generate a report) with argument 1.
Successfully parsed a group of options.
Parsing a group of options: input file ./transformers/trans3-720p.h264.
Applying option re (read input at native frame rate) with argument 1.
Successfully parsed a group of options.
Opening an input file: ./transformers/trans3-720p.h264.
[h264 @ 0x81f3540] Format h264 probed with size=2048 and score=51
[h264 @ 0x81f3540] File position before avformat_find_stream_info() is 0
[h264 @ 0x81f97a0] no picture
[h264 @ 0x81f3540] max_analyze_duration 5000000 reached at 5005000
[h264 @ 0x81f3540] Estimating duration from bitrate, this may be inaccurate
[h264 @ 0x81f3540] File position after avformat_find_stream_info() is 3917824
Input #0, h264, from './transformers/trans3-720p.h264':
Duration: N/A, bitrate: N/A
Stream #0:0, 122, 1/1200000: Video: h264 (High), yuv420p, 1280x720, 23.98 fps, 23.98 tbr, 1200k tbn, 47.95 tbc
Successfully openened the file.
Parsing a group of options: output file udp://192.168.1.2:5004.
Applying option c:v (codec name) with argument copy.
Applying option f (force format) with argument mpegts.
Successfully parsed a group of options.
Opening an output file: udp://192.168.1.2:5004.
Successfully openened the file.
[mpegts @ 0x81faa60] muxrate VBR, pcr every 2 pkts, sdt every 200, pat/pmt every 40 pkts
Output #0, mpegts, to 'udp://192.168.1.2:5004':
Metadata:
encoder : Lavf54.59.100
Stream #0:0, 0, 1/90000: Video: h264, yuv420p, 1280x720, q=2-31, 23.98 fps, 90k tbn, 23.98 tbc
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
[mpegts @ 0x81faa60] first pts value must set
av_interleaved_write_frame(): Invalid data found when processing input
Statistics: 3932160 bytes read, 0 seeks
Change History (1)
comment:1 by , 13 years ago
| Description: | modified (diff) |
|---|---|
| Resolution: | → invalid |
| Status: | new → closed |
Note:
See TracTickets
for help on using tickets.



Nothing in your console output indicates that FFmpeg tries to re-encode your video using the mpeg2video encoder, on the contrary, see "Output ... h264" and "Stream #0:0 -> #0:0 (copy)".