diff options
Diffstat (limited to 'spa/tools/spa-inspect.c')
| -rw-r--r-- | spa/tools/spa-inspect.c | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/spa/tools/spa-inspect.c b/spa/tools/spa-inspect.c new file mode 100644 index 0000000..4e79104 --- /dev/null +++ b/spa/tools/spa-inspect.c @@ -0,0 +1,319 @@ +/* Simple Plugin API + * + * Copyright © 2018 Wim Taymans + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include <string.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <dlfcn.h> + +#include <spa/support/plugin.h> +#include <spa/support/log-impl.h> +#include <spa/support/loop.h> +#include <spa/utils/result.h> +#include <spa/utils/string.h> +#include <spa/node/node.h> +#include <spa/node/utils.h> +#include <spa/pod/parser.h> +#include <spa/param/param.h> +#include <spa/param/format.h> +#include <spa/debug/dict.h> +#include <spa/debug/pod.h> +#include <spa/debug/format.h> +#include <spa/debug/types.h> + +static SPA_LOG_IMPL(default_log); + +struct data { + struct spa_support support[4]; + uint32_t n_support; + struct spa_log *log; + struct spa_loop loop; + struct spa_node *node; + struct spa_hook listener; +}; + +static void print_param(void *data, int seq, int res, uint32_t type, const void *result) +{ + switch (type) { + case SPA_RESULT_TYPE_NODE_PARAMS: + { + const struct spa_result_node_params *r = result; + + if (spa_pod_is_object_type(r->param, SPA_TYPE_OBJECT_Format)) + spa_debug_format(16, NULL, r->param); + else + spa_debug_pod(16, NULL, r->param); + break; + } + default: + break; + } +} + +static void +inspect_node_params(struct data *data, struct spa_node *node, + uint32_t n_params, struct spa_param_info *params) +{ + int res; + uint32_t i; + struct spa_hook listener; + static const struct spa_node_events node_events = { + SPA_VERSION_NODE_EVENTS, + .result = print_param, + }; + + for (i = 0; i < n_params; i++) { + printf("enumerating: %s:\n", spa_debug_type_find_name(spa_type_param, params[i].id)); + + if (!SPA_FLAG_IS_SET(params[i].flags, SPA_PARAM_INFO_READ)) + continue; + + spa_zero(listener); + spa_node_add_listener(node, &listener, &node_events, data); + res = spa_node_enum_params(node, 0, params[i].id, 0, UINT32_MAX, NULL); + spa_hook_remove(&listener); + + if (res != 0) { + printf("error enum_params %d: %s", params[i].id, spa_strerror(res)); + break; + } + } +} + +static void +inspect_port_params(struct data *data, struct spa_node *node, + enum spa_direction direction, uint32_t port_id, + uint32_t n_params, struct spa_param_info *params) +{ + int res; + uint32_t i; + struct spa_hook listener; + static const struct spa_node_events node_events = { + SPA_VERSION_NODE_EVENTS, + .result = print_param, + }; + + for (i = 0; i < n_params; i++) { + printf("param: %s: flags %c%c\n", + spa_debug_type_find_name(spa_type_param, params[i].id), + params[i].flags & SPA_PARAM_INFO_READ ? 'r' : '-', + params[i].flags & SPA_PARAM_INFO_WRITE ? 'w' : '-'); + + if (!SPA_FLAG_IS_SET(params[i].flags, SPA_PARAM_INFO_READ)) + continue; + + printf("values:\n"); + spa_zero(listener); + spa_node_add_listener(node, &listener, &node_events, data); + res = spa_node_port_enum_params(node, 0, + direction, port_id, + params[i].id, 0, UINT32_MAX, + NULL); + spa_hook_remove(&listener); + + if (res != 0) { + printf("error port_enum_params %d: %s", params[i].id, spa_strerror(res)); + break; + } + } +} + +static void node_info(void *_data, const struct spa_node_info *info) +{ + struct data *data = _data; + + printf("node info: %08"PRIx64"\n", info->change_mask); + printf("max input ports: %u\n", info->max_input_ports); + printf("max output ports: %u\n", info->max_output_ports); + + if (info->change_mask & SPA_NODE_CHANGE_MASK_PROPS) { + printf("node properties:\n"); + spa_debug_dict(2, info->props); + } + if (info->change_mask & SPA_NODE_CHANGE_MASK_PARAMS) { + inspect_node_params(data, data->node, info->n_params, info->params); + } +} + +static void node_port_info(void *_data, enum spa_direction direction, uint32_t id, + const struct spa_port_info *info) +{ + struct data *data = _data; + + printf(" %s port: %08x", + direction == SPA_DIRECTION_INPUT ? "input" : "output", + id); + + if (info == NULL) { + printf(" removed\n"); + } + else { + printf(" info:\n"); + if (info->change_mask & SPA_PORT_CHANGE_MASK_PROPS) { + printf("port properties:\n"); + spa_debug_dict(2, info->props); + } + if (info->change_mask & SPA_PORT_CHANGE_MASK_PARAMS) { + inspect_port_params(data, data->node, direction, id, + info->n_params, info->params); + } + } +} + +static const struct spa_node_events node_events = +{ + SPA_VERSION_NODE_EVENTS, + .info = node_info, + .port_info = node_port_info, +}; + +static void inspect_node(struct data *data, struct spa_node *node) +{ + data->node = node; + spa_node_add_listener(node, &data->listener, &node_events, data); + spa_hook_remove(&data->listener); +} + +static void inspect_factory(struct data *data, const struct spa_handle_factory *factory) +{ + int res; + struct spa_handle *handle; + void *interface; + const struct spa_interface_info *info; + uint32_t index; + + printf("factory version:\t\t%d\n", factory->version); + printf("factory name:\t\t'%s'\n", factory->name); + if (factory->version < 1) { + printf("\tno further info for version %d < 1\n", factory->version); + return; + } + + printf("factory info:\n"); + if (factory->info) + spa_debug_dict(2, factory->info); + else + printf(" none\n"); + + printf("factory interfaces:\n"); + for (index = 0;;) { + if ((res = spa_handle_factory_enum_interface_info(factory, &info, &index)) <= 0) { + if (res != 0) + printf("error spa_handle_factory_enum_interface_info: %s", + spa_strerror(res)); + break; + } + printf(" interface: '%s'\n", info->type); + } + + handle = calloc(1, spa_handle_factory_get_size(factory, NULL)); + if ((res = + spa_handle_factory_init(factory, handle, NULL, data->support, data->n_support)) < 0) { + printf("can't make factory instance: %d\n", res); + goto out; + } + + printf("factory instance:\n"); + + for (index = 0;;) { + if ((res = spa_handle_factory_enum_interface_info(factory, &info, &index)) <= 0) { + if (res != 0) + printf("error spa_handle_factory_enum_interface_info: %s", + spa_strerror(res)); + break; + } + printf(" interface: '%s'\n", info->type); + + if ((res = spa_handle_get_interface(handle, info->type, &interface)) < 0) { + printf("can't get interface: %s: %d\n", info->type, res); + continue; + } + + if (spa_streq(info->type, SPA_TYPE_INTERFACE_Node)) + inspect_node(data, interface); + else + printf("skipping unknown interface\n"); + } + + if ((res = spa_handle_clear(handle)) < 0) + printf("failed to clear handle: %s\n", spa_strerror(res)); + +out: + free(handle); +} + +static const struct spa_loop_methods impl_loop = { + SPA_VERSION_LOOP_METHODS, +}; + +int main(int argc, char *argv[]) +{ + struct data data = { 0 }; + int res; + void *handle; + spa_handle_factory_enum_func_t enum_func; + uint32_t index; + const char *str; + + if (argc < 2) { + printf("usage: %s <plugin.so>\n", argv[0]); + return -1; + } + + data.log = &default_log.log; + data.loop.iface = SPA_INTERFACE_INIT( + SPA_TYPE_INTERFACE_Loop, + SPA_VERSION_LOOP, + &impl_loop, &data); + + if ((str = getenv("SPA_DEBUG"))) + data.log->level = atoi(str); + + data.support[0] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_Log, data.log); + data.support[1] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_Loop, &data.loop); + data.support[2] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_DataLoop, &data.loop); + data.n_support = 3; + + if ((handle = dlopen(argv[1], RTLD_NOW)) == NULL) { + printf("can't load %s\n", argv[1]); + return -1; + } + if ((enum_func = dlsym(handle, SPA_HANDLE_FACTORY_ENUM_FUNC_NAME)) == NULL) { + printf("can't find function\n"); + return -1; + } + + for (index = 0;;) { + const struct spa_handle_factory *factory; + + if ((res = enum_func(&factory, &index)) <= 0) { + if (res != 0) + printf("error enum_func: %s", spa_strerror(res)); + break; + } + inspect_factory(&data, factory); + } + return 0; +} |