ffmpeg | branch: master | Timothy Gu <timothygu99@gmail.com> | Tue Aug 25 16:45:21 2015 -0700| [c23999be134bde0a0554261a9043be7dbc01de0c] | committer: Luca Barbato avconv_opt: Add an option that lists all supported hwaccels Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c23999be134bde0a05...

avconv_opt.c | 14 ++++++++++++++ doc/avconv.texi | 4 ++++ 2 files changed, 18 insertions(+) diff --git a/avconv_opt.c b/avconv_opt.c index b527335..5bdd7d9 100644 --- a/avconv_opt.c +++ b/avconv_opt.c @@ -177,6 +177,18 @@ static double parse_frame_aspect_ratio(const char *arg) 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) { OptionsContext *o = optctx; @@ -2446,6 +2458,8 @@ const OptionDef options[] = { { "hwaccel_device", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_devices) }, "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 | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(autorotate) }, "automatically insert correct rotate filters" }, diff --git a/doc/avconv.texi b/doc/avconv.texi index 504b8ed..2433ede 100644 --- a/doc/avconv.texi +++ b/doc/avconv.texi @@ -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. If this option is not specified, the default adapter is used. @end table + +@item -hwaccels +List all hardware acceleration methods supported in this build of avconv. + @end table @section Audio Options