Allows to list sources/sinks of the devices that implement
that functionality.
Signed-off-by: Lukasz Marek <lukasz.m.lu...@gmail.com>
---
cmdutils.c | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++
cmdutils.h | 12 +++++++
cmdutils_common_opts.h | 6 ++++
3 files changed, 107 insertions(+)
diff --git a/cmdutils.c b/cmdutils.c
index 67bb66e..defcf0a 100644
--- a/cmdutils.c
+++ b/cmdutils.c
@@ -2050,3 +2050,92 @@ void *grow_array(void *array, int elem_size, int *size,
int new_size)
}
return array;
}
+
+
+int show_sources(void *optctx, const char *opt, const char *arg)
+{
+#if CONFIG_AVDEVICE
+ AVDeviceInfoList *device_list = NULL;
+ AVFormatContext *dev = NULL;
+ AVInputFormat *fmt;
+ int ret, i;
+
+ if (!arg) {
+ printf("Device name is missing.\n");
+ return AVERROR(EINVAL);
+ }
+
+ fmt = av_find_input_format(arg);
+ if (!fmt || !fmt->priv_class ||
!AV_IS_INPUT_DEVICE(fmt->priv_class->category)) {
+ printf("No such device: %s\n", arg);
+ return AVERROR(EINVAL);
+ }
+
+ if ((ret = avformat_open_input(&dev, NULL, fmt, NULL)) < 0) {
+ printf("Cannot open device: %s\n", arg);
+ goto fail;
+ }
+
+ if ((ret = avdevice_list_devices(dev, &device_list)) < 0) {
+ printf("Cannot list devices\n");
+ goto fail;
+ }
+ printf("Audo-detected sinks for %s:\n", arg);
+ for (i = 0; i < device_list->nb_devices; i++) {
+ printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
+ device_list->devices[i]->device_name,
device_list->devices[i]->device_description);
+ }
+
+ fail:
+ avdevice_free_list_devices(&device_list);
+ avformat_close_input(&dev);
+ return ret;
+#else
+ printf("Configured without libavdevice\n");
+ return AVERROR(ENOSYS);
+#endif
+}
+
+int show_sinks(void *optctx, const char *opt, const char *arg)
+{
+#if CONFIG_AVDEVICE
+ AVDeviceInfoList *device_list = NULL;
+ AVFormatContext *dev = NULL;
+ AVOutputFormat *fmt;
+ int ret, i;
+
+ if (!arg) {
+ printf("Device name is missing.\n");
+ return AVERROR(EINVAL);
+ }
+
+ fmt = av_guess_format(arg, NULL, NULL);
+ if (!fmt || !fmt->priv_class ||
!AV_IS_OUTPUT_DEVICE(fmt->priv_class->category)) {
+ printf("No such device: %s\n", arg);
+ return AVERROR(EINVAL);
+ }
+
+ if ((ret = avformat_alloc_output_context2(&dev, fmt, NULL, NULL)) < 0) {
+ printf("Cannot open device: %s\n", arg);
+ goto fail;
+ }
+
+ if ((ret = avdevice_list_devices(dev, &device_list)) < 0) {
+ printf("Cannot list devices\n");
+ goto fail;
+ }
+ printf("Audo-detected sinks for %s:\n", arg);
+ for (i = 0; i < device_list->nb_devices; i++) {
+ printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
+ device_list->devices[i]->device_name,
device_list->devices[i]->device_description);
+ }
+
+ fail:
+ avdevice_free_list_devices(&device_list);
+ avformat_close_input(&dev);
+ return ret;
+#else
+ printf("Configured without libavdevice\n");
+ return AVERROR(ENOSYS);
+#endif
+}
diff --git a/cmdutils.h b/cmdutils.h
index 76d11a5..cb34876 100644
--- a/cmdutils.h
+++ b/cmdutils.h
@@ -444,6 +444,18 @@ int show_formats(void *optctx, const char *opt, const char
*arg);
int show_devices(void *optctx, const char *opt, const char *arg);
/**
+ * Print a listing containing audodetected sinks of the output device.
+ * Device name must be passed as an argument.
+ */
+int show_sinks(void *optctx, const char *opt, const char *arg);
+
+/**
+ * Print a listing containing audodetected sources of the input device.
+ * Device name must be passed as an argument.
+ */
+int show_sources(void *optctx, const char *opt, const char *arg);
+
+/**
* Print a listing containing all the codecs supported by the
* program.
* This option processing function does not utilize the arguments.
diff --git a/cmdutils_common_opts.h b/cmdutils_common_opts.h
index 49b5180..758dac1 100644
--- a/cmdutils_common_opts.h
+++ b/cmdutils_common_opts.h
@@ -27,3 +27,9 @@
{ "opencl_bench", OPT_EXIT, {.func_arg = opt_opencl_bench}, "run benchmark
on all OpenCL devices and show results" },
{ "opencl_options", HAS_ARG, {.func_arg = opt_opencl}, "set OpenCL
environment options" },
#endif
+#if CONFIG_AVDEVICE
+ { "sources" , OPT_EXIT | HAS_ARG, { .func_arg = show_sources },
+ "list sources of the input device", "device" },
+ { "sinks" , OPT_EXIT | HAS_ARG, { .func_arg = show_sinks },
+ "list sinks of the output device", "device" },
+#endif
--
1.9.1
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