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doc/ffmpeg: update and extend documentation for -copytb

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Address trac ticket #1120.
This commit is contained in:
Stefano Sabatini 2012-03-24 16:11:46 +01:00
parent 247fbf071b
commit 99bb88c588
2 changed files with 25 additions and 3 deletions
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26
doc/ffmpeg.texi
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@ -765,8 +765,30 @@ the parameter is the maximum samples per second by which the audio is changed.
without any later correction.
@item -copyts
Copy timestamps from input to output.
@item -copytb
Copy input stream time base from input to output when stream copying.
@item -copytb @var{mode}
Specify how to set the encoder timebase when stream copying. @var{mode} is an
integer numeric value, and can assume one of the following values:
@table @option
@item 1
Use the demuxer timebase.
The time base is copied to the output encoder from the corresponding input
demuxer. This is sometimes required to avoid non monotonically increasing
timestamps when copying video streams with variable frame rate.
@item 0
Use the decoder timebase.
The time base is copied to the output encoder from the corresponding input
decoder.
@item -1
Try to make the choice automatically, in order to generate a sane output.
@end table
Default value is -1.
@item -shortest
Finish encoding when the shortest input stream ends.
@item -dts_delta_threshold

2
ffmpeg.c
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@ -5072,7 +5072,7 @@ static const OptionDef options[] = {
{ "async", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&audio_sync_method}, "audio sync method", "" },
{ "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&audio_drift_threshold}, "audio drift threshold", "threshold" },
{ "copyts", OPT_BOOL | OPT_EXPERT, {(void*)&copy_ts}, "copy timestamps" },
{ "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&copy_tb}, "copy input stream time base when stream copying", "source" },
{ "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&copy_tb}, "copy input stream time base when stream copying", "mode" },
{ "shortest", OPT_BOOL | OPT_EXPERT, {(void*)&opt_shortest}, "finish encoding within shortest input" }, //
{ "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&dts_delta_threshold}, "timestamp discontinuity delta threshold", "threshold" },
{ "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&dts_error_threshold}, "timestamp error delta threshold", "threshold" },