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avconv_opt: Add an option that lists all supported hwaccels

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Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Timothy Gu 2015-08-25 16:45:21 -07:00 committed by Luca Barbato
parent 629d4c5b4d
commit c23999be13
2 changed files with 18 additions and 0 deletions
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14
avconv_opt.c
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@ -177,6 +177,18 @@ static double parse_frame_aspect_ratio(const char *arg)
return ar; return ar;
} }
static int show_hwaccels(void *optctx, const char *opt, const char *arg)
{
int i;
printf("Supported hardware acceleration:\n");
for (i = 0; i < FF_ARRAY_ELEMS(hwaccels) - 1; i++) {
printf("%s\n", hwaccels[i].name);
}
printf("\n");
return 0;
}
static int opt_audio_codec(void *optctx, const char *opt, const char *arg) static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
{ {
OptionsContext *o = optctx; OptionsContext *o = optctx;
@ -2446,6 +2458,8 @@ const OptionDef options[] = {
{ "hwaccel_device", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT | { "hwaccel_device", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_devices) }, OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_devices) },
"select a device for HW acceleration", "devicename" }, "select a device for HW acceleration", "devicename" },
{ "hwaccels", OPT_EXIT, { .func_arg = show_hwaccels },
"show available HW acceleration methods" },
{ "autorotate", HAS_ARG | OPT_BOOL | OPT_SPEC | { "autorotate", HAS_ARG | OPT_BOOL | OPT_SPEC |
OPT_EXPERT | OPT_INPUT, { .off = OFFSET(autorotate) }, OPT_EXPERT | OPT_INPUT, { .off = OFFSET(autorotate) },
"automatically insert correct rotate filters" }, "automatically insert correct rotate filters" },

4
doc/avconv.texi
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@ -626,6 +626,10 @@ is not specified, the value of the @var{DISPLAY} environment variable is used
For DXVA2, this option should contain the number of the display adapter to use. For DXVA2, this option should contain the number of the display adapter to use.
If this option is not specified, the default adapter is used. If this option is not specified, the default adapter is used.
@end table @end table
@item -hwaccels
List all hardware acceleration methods supported in this build of avconv.
@end table @end table
@section Audio Options @section Audio Options