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ffplay: implement -showmode option 

The new option allows to select the starting show mode.
This commit is contained in:
Stefano Sabatini 2011-04-12 13:10:33 +02:00
parent f8b8c694e9
commit f521746b83
2 changed files with 31 additions and 0 deletions
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18
doc/ffplay.texi
View File

@ -58,6 +58,24 @@ Force format.
Set window title (default is the input filename).
@item -loop @var{number}
Loops movie playback <number> times. 0 means forever.
@item -showmode @var{mode}
Set the show mode to use.
Available values for @var{mode} are:
@table @samp
@item 0, video
show video
@item 1, waves
show audio waves
@item 2, rdft
show audio frequency band using RDFT ((Inverse) Real Discrete Fourier Transform)
@end table
Default value is "video", if video is not present or cannot be played
"rdft" is automatically selected.
You can interactively cycle through the available show modes by
pressing the key @key{w}.
@item -vf @var{filter_graph}
@var{filter_graph} is a description of the filter graph to apply to
the input video.

13
ffplay.c
View File

@ -265,6 +265,7 @@ static int exit_on_keydown;
static int exit_on_mousedown;
static int loop=1;
static int framedrop=1;
static int show_mode = SHOW_MODE_VIDEO;
static int rdftspeed=20;
#if CONFIG_AVFILTER
@ -2461,6 +2462,8 @@ static int decode_thread(void *arg)
av_dump_format(ic, 0, is->filename, 0);
}
is->show_mode = show_mode;
/* open the streams */
if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
@ -2970,6 +2973,15 @@ static int opt_thread_count(const char *opt, const char *arg)
return 0;
}
static int opt_show_mode(const char *opt, const char *arg)
{
show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
!strcmp(arg, "waves") ? SHOW_MODE_WAVES :
!strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT :
parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
return 0;
}
static const OptionDef options[] = {
#include "cmdutils_common_opts.h"
{ "x", HAS_ARG | OPT_FUNC2, {(void*)opt_width}, "force displayed width", "width" },
@ -3013,6 +3025,7 @@ static const OptionDef options[] = {
{ "vf", OPT_STRING | HAS_ARG, {(void*)&vfilters}, "video filters", "filter list" },
#endif
{ "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, {(void*)&rdftspeed}, "rdft speed", "msecs" },
{ "showmode", HAS_ARG | OPT_FUNC2, {(void*)opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
{ "default", OPT_FUNC2 | HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
{ "i", OPT_DUMMY, {NULL}, "ffmpeg compatibility dummy option", ""},
{ NULL, },