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-rw-r--r--spa/plugins/videoconvert/videoadapter.c1671
1 files changed, 1671 insertions, 0 deletions
diff --git a/spa/plugins/videoconvert/videoadapter.c b/spa/plugins/videoconvert/videoadapter.c
new file mode 100644
index 0000000..2f6f068
--- /dev/null
+++ b/spa/plugins/videoconvert/videoadapter.c
@@ -0,0 +1,1671 @@
+/* SPA
+ *
+ * Copyright © 2019 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 <spa/support/plugin.h>
+#include <spa/support/log.h>
+#include <spa/support/cpu.h>
+
+#include <spa/node/node.h>
+#include <spa/node/io.h>
+#include <spa/node/utils.h>
+#include <spa/node/keys.h>
+#include <spa/utils/names.h>
+#include <spa/utils/result.h>
+#include <spa/utils/string.h>
+#include <spa/buffer/alloc.h>
+#include <spa/pod/parser.h>
+#include <spa/pod/filter.h>
+#include <spa/pod/dynamic.h>
+#include <spa/param/param.h>
+#include <spa/param/video/format-utils.h>
+#include <spa/param/latency-utils.h>
+#include <spa/debug/format.h>
+#include <spa/debug/pod.h>
+#include <spa/debug/log.h>
+
+#undef SPA_LOG_TOPIC_DEFAULT
+#define SPA_LOG_TOPIC_DEFAULT log_topic
+static struct spa_log_topic *log_topic = &SPA_LOG_TOPIC(0, "spa.videoadapter");
+
+#define DEFAULT_ALIGN 16
+
+#define MAX_PORTS 1
+
+/** \cond */
+
+struct impl {
+ struct spa_handle handle;
+ struct spa_node node;
+
+ struct spa_log *log;
+ struct spa_cpu *cpu;
+
+ uint32_t max_align;
+ enum spa_direction direction;
+
+ struct spa_node *target;
+
+ struct spa_node *follower;
+ struct spa_hook follower_listener;
+ uint32_t follower_flags;
+ struct spa_video_info follower_current_format;
+ struct spa_video_info default_format;
+
+ struct spa_handle *hnd_convert;
+ struct spa_node *convert;
+ struct spa_hook convert_listener;
+ uint32_t convert_flags;
+
+ uint32_t n_buffers;
+ struct spa_buffer **buffers;
+
+ struct spa_io_buffers io_buffers;
+ struct spa_io_rate_match io_rate_match;
+ struct spa_io_position *io_position;
+
+ uint64_t info_all;
+ struct spa_node_info info;
+#define IDX_EnumFormat 0
+#define IDX_PropInfo 1
+#define IDX_Props 2
+#define IDX_Format 3
+#define IDX_EnumPortConfig 4
+#define IDX_PortConfig 5
+#define IDX_Latency 6
+#define IDX_ProcessLatency 7
+#define N_NODE_PARAMS 8
+ struct spa_param_info params[N_NODE_PARAMS];
+ uint32_t convert_params_flags[N_NODE_PARAMS];
+ uint32_t follower_params_flags[N_NODE_PARAMS];
+
+ struct spa_hook_list hooks;
+ struct spa_callbacks callbacks;
+
+ unsigned int add_listener:1;
+ unsigned int have_format:1;
+ unsigned int started:1;
+ unsigned int driver:1;
+ unsigned int async:1;
+ unsigned int passthrough:1;
+ unsigned int follower_removing:1;
+};
+
+/** \endcond */
+
+static int follower_enum_params(struct impl *this,
+ uint32_t id,
+ uint32_t idx,
+ struct spa_result_node_params *result,
+ const struct spa_pod *filter,
+ struct spa_pod_builder *builder)
+{
+ int res;
+ if (result->next < 0x100000) {
+ if (this->convert != NULL &&
+ (res = spa_node_enum_params_sync(this->convert,
+ id, &result->next, filter, &result->param, builder)) == 1)
+ return res;
+ result->next = 0x100000;
+ }
+ if (result->next < 0x200000 && this->follower_params_flags[idx] & SPA_PARAM_INFO_READ) {
+ result->next &= 0xfffff;
+ if ((res = spa_node_enum_params_sync(this->follower,
+ id, &result->next, filter, &result->param, builder)) == 1) {
+ result->next |= 0x100000;
+ return res;
+ }
+ result->next = 0x200000;
+ }
+ return 0;
+}
+
+static int impl_node_enum_params(void *object, int seq,
+ uint32_t id, uint32_t start, uint32_t num,
+ const struct spa_pod *filter)
+{
+ struct impl *this = object;
+ uint8_t buffer[4096];
+ struct spa_pod_dynamic_builder b;
+ struct spa_result_node_params result;
+ uint32_t count = 0;
+ int res;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+ spa_return_val_if_fail(num != 0, -EINVAL);
+
+ result.id = id;
+ result.next = start;
+next:
+ result.index = result.next;
+
+ spa_log_debug(this->log, "%p: %d id:%u", this, seq, id);
+
+ spa_pod_dynamic_builder_init(&b, buffer, sizeof(buffer), 4096);
+
+ switch (id) {
+ case SPA_PARAM_EnumPortConfig:
+ case SPA_PARAM_PortConfig:
+ if (this->convert == NULL)
+ return 0;
+ res = spa_node_enum_params(this->convert, seq, id, start, num, filter);
+ return res;
+ case SPA_PARAM_PropInfo:
+ res = follower_enum_params(this,
+ id, IDX_PropInfo, &result, filter, &b.b);
+ break;
+ case SPA_PARAM_Props:
+ res = follower_enum_params(this,
+ id, IDX_Props, &result, filter, &b.b);
+ break;
+ case SPA_PARAM_ProcessLatency:
+ res = follower_enum_params(this,
+ id, IDX_ProcessLatency, &result, filter, &b.b);
+ break;
+ case SPA_PARAM_EnumFormat:
+ case SPA_PARAM_Format:
+ case SPA_PARAM_Latency:
+ res = spa_node_port_enum_params_sync(this->follower,
+ this->direction, 0,
+ id, &result.next, filter, &result.param, &b.b);
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ if (res == 1) {
+ spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result);
+ count++;
+ }
+ spa_pod_dynamic_builder_clean(&b);
+
+ if (res != 1)
+ return res;
+
+ if (count != num)
+ goto next;
+
+ return 0;
+}
+
+static int link_io(struct impl *this)
+{
+ int res;
+
+ if (this->convert == NULL)
+ return 0;
+
+ spa_log_debug(this->log, "%p: controls", this);
+
+ spa_zero(this->io_rate_match);
+ this->io_rate_match.rate = 1.0;
+
+ if ((res = spa_node_port_set_io(this->follower,
+ this->direction, 0,
+ SPA_IO_RateMatch,
+ &this->io_rate_match, sizeof(this->io_rate_match))) < 0) {
+ spa_log_debug(this->log, "%p: set RateMatch on follower disabled %d %s", this,
+ res, spa_strerror(res));
+ }
+ else if ((res = spa_node_port_set_io(this->convert,
+ SPA_DIRECTION_REVERSE(this->direction), 0,
+ SPA_IO_RateMatch,
+ &this->io_rate_match, sizeof(this->io_rate_match))) < 0) {
+ spa_log_warn(this->log, "%p: set RateMatch on convert failed %d %s", this,
+ res, spa_strerror(res));
+ }
+
+ this->io_buffers = SPA_IO_BUFFERS_INIT;
+
+ if ((res = spa_node_port_set_io(this->follower,
+ this->direction, 0,
+ SPA_IO_Buffers,
+ &this->io_buffers, sizeof(this->io_buffers))) < 0) {
+ spa_log_warn(this->log, "%p: set Buffers on follower failed %d %s", this,
+ res, spa_strerror(res));
+ return res;
+ }
+ else if ((res = spa_node_port_set_io(this->convert,
+ SPA_DIRECTION_REVERSE(this->direction), 0,
+ SPA_IO_Buffers,
+ &this->io_buffers, sizeof(this->io_buffers))) < 0) {
+ spa_log_warn(this->log, "%p: set Buffers on convert failed %d %s", this,
+ res, spa_strerror(res));
+ return res;
+ }
+ return 0;
+}
+
+static void emit_node_info(struct impl *this, bool full)
+{
+ uint32_t i;
+ uint64_t old = full ? this->info.change_mask : 0;
+
+ spa_log_debug(this->log, "%p: info full:%d change:%08"PRIx64,
+ this, full, this->info.change_mask);
+
+ if (full)
+ this->info.change_mask = this->info_all;
+ if (this->info.change_mask) {
+ if (this->info.change_mask & SPA_NODE_CHANGE_MASK_PARAMS) {
+ for (i = 0; i < this->info.n_params; i++) {
+ if (this->params[i].user > 0) {
+ this->params[i].flags ^= SPA_PARAM_INFO_SERIAL;
+ this->params[i].user = 0;
+ spa_log_debug(this->log, "param %d flags:%08x",
+ i, this->params[i].flags);
+ }
+ }
+ }
+ spa_node_emit_info(&this->hooks, &this->info);
+ this->info.change_mask = old;
+ }
+}
+
+static int debug_params(struct impl *this, struct spa_node *node,
+ enum spa_direction direction, uint32_t port_id, uint32_t id, struct spa_pod *filter,
+ const char *debug, int err)
+{
+ struct spa_pod_builder b = { 0 };
+ uint8_t buffer[4096];
+ uint32_t state;
+ struct spa_pod *param;
+ int res, count = 0;
+
+ spa_log_error(this->log, "params %s: %d:%d (%s) %s",
+ spa_debug_type_find_name(spa_type_param, id),
+ direction, port_id, debug, err ? spa_strerror(err) : "no matching params");
+ if (err == -EBUSY)
+ return 0;
+
+ if (filter) {
+ spa_log_error(this->log, "with this filter:");
+ spa_debug_log_pod(this->log, SPA_LOG_LEVEL_DEBUG, 2, NULL, filter);
+ } else {
+ spa_log_error(this->log, "there was no filter");
+ }
+
+ state = 0;
+ while (true) {
+ spa_pod_builder_init(&b, buffer, sizeof(buffer));
+ res = spa_node_port_enum_params_sync(node,
+ direction, port_id,
+ id, &state,
+ NULL, &param, &b);
+ if (res != 1) {
+ if (res < 0)
+ spa_log_error(this->log, " error: %s", spa_strerror(res));
+ break;
+ }
+ spa_log_error(this->log, "unmatched %s %d:", debug, count);
+ spa_debug_log_pod(this->log, SPA_LOG_LEVEL_DEBUG, 2, NULL, param);
+ count++;
+ }
+ if (count == 0)
+ spa_log_error(this->log, "could not get any %s", debug);
+
+ return 0;
+}
+
+static int negotiate_buffers(struct impl *this)
+{
+ uint8_t buffer[4096];
+ struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buffer, sizeof(buffer));
+ uint32_t state;
+ struct spa_pod *param;
+ int res;
+ bool follower_alloc, conv_alloc;
+ uint32_t i, size, buffers, blocks, align, flags, stride = 0;
+ uint32_t *aligns;
+ struct spa_data *datas;
+ uint32_t follower_flags, conv_flags;
+
+ spa_log_debug(this->log, "%p: %d", this, this->n_buffers);
+
+ if (this->target == this->follower)
+ return 0;
+
+ if (this->n_buffers > 0)
+ return 0;
+
+ state = 0;
+ param = NULL;
+ if ((res = spa_node_port_enum_params_sync(this->follower,
+ this->direction, 0,
+ SPA_PARAM_Buffers, &state,
+ param, &param, &b)) < 0) {
+ if (res == -ENOENT)
+ param = NULL;
+ else {
+ debug_params(this, this->follower, this->direction, 0,
+ SPA_PARAM_Buffers, param, "follower buffers", res);
+ return res;
+ }
+ }
+
+ state = 0;
+ if ((res = spa_node_port_enum_params_sync(this->convert,
+ SPA_DIRECTION_REVERSE(this->direction), 0,
+ SPA_PARAM_Buffers, &state,
+ param, &param, &b)) != 1) {
+ debug_params(this, this->convert,
+ SPA_DIRECTION_REVERSE(this->direction), 0,
+ SPA_PARAM_Buffers, param, "convert buffers", res);
+ return -ENOTSUP;
+ }
+ if (param == NULL)
+ return -ENOTSUP;
+
+ spa_pod_fixate(param);
+
+ follower_flags = this->follower_flags;
+ conv_flags = this->convert_flags;
+
+ follower_alloc = SPA_FLAG_IS_SET(follower_flags, SPA_PORT_FLAG_CAN_ALLOC_BUFFERS);
+ conv_alloc = SPA_FLAG_IS_SET(conv_flags, SPA_PORT_FLAG_CAN_ALLOC_BUFFERS);
+
+ flags = 0;
+ if (conv_alloc || follower_alloc) {
+ flags |= SPA_BUFFER_ALLOC_FLAG_NO_DATA;
+ if (conv_alloc)
+ follower_alloc = false;
+ }
+
+ align = DEFAULT_ALIGN;
+
+ if ((res = spa_pod_parse_object(param,
+ SPA_TYPE_OBJECT_ParamBuffers, NULL,
+ SPA_PARAM_BUFFERS_buffers, SPA_POD_Int(&buffers),
+ SPA_PARAM_BUFFERS_blocks, SPA_POD_Int(&blocks),
+ SPA_PARAM_BUFFERS_size, SPA_POD_Int(&size),
+ SPA_PARAM_BUFFERS_stride, SPA_POD_Int(&stride),
+ SPA_PARAM_BUFFERS_align, SPA_POD_OPT_Int(&align))) < 0)
+ return res;
+
+ spa_log_debug(this->log, "%p: buffers:%d, blocks:%d, size:%d, stride:%d align:%d %d:%d",
+ this, buffers, blocks, size, stride, align, follower_alloc, conv_alloc);
+
+ align = SPA_MAX(align, this->max_align);
+
+ datas = alloca(sizeof(struct spa_data) * blocks);
+ memset(datas, 0, sizeof(struct spa_data) * blocks);
+ aligns = alloca(sizeof(uint32_t) * blocks);
+ for (i = 0; i < blocks; i++) {
+ datas[i].type = SPA_DATA_MemPtr;
+ datas[i].flags = SPA_DATA_FLAG_READWRITE | SPA_DATA_FLAG_DYNAMIC;
+ datas[i].maxsize = size;
+ aligns[i] = align;
+ }
+
+ free(this->buffers);
+ this->buffers = spa_buffer_alloc_array(buffers, flags, 0, NULL, blocks, datas, aligns);
+ if (this->buffers == NULL)
+ return -errno;
+ this->n_buffers = buffers;
+
+ if ((res = spa_node_port_use_buffers(this->convert,
+ SPA_DIRECTION_REVERSE(this->direction), 0,
+ conv_alloc ? SPA_NODE_BUFFERS_FLAG_ALLOC : 0,
+ this->buffers, this->n_buffers)) < 0)
+ return res;
+
+ if ((res = spa_node_port_use_buffers(this->follower,
+ this->direction, 0,
+ follower_alloc ? SPA_NODE_BUFFERS_FLAG_ALLOC : 0,
+ this->buffers, this->n_buffers)) < 0)
+ return res;
+
+ return 0;
+}
+
+static int configure_format(struct impl *this, uint32_t flags, const struct spa_pod *format)
+{
+ int res;
+
+ spa_log_debug(this->log, "%p: configure format:", this);
+ if (format)
+ spa_debug_log_format(this->log, SPA_LOG_LEVEL_DEBUG, 0, NULL, format);
+
+ if ((res = spa_node_port_set_param(this->follower,
+ this->direction, 0,
+ SPA_PARAM_Format, flags,
+ format)) < 0)
+ return res;
+ if (res > 0) {
+ uint8_t buffer[4096];
+ struct spa_pod_builder b = { 0 };
+ uint32_t state = 0;
+ struct spa_pod *fmt;
+
+ /* format was changed to nearest compatible format */
+ spa_pod_builder_init(&b, buffer, sizeof(buffer));
+
+ if ((res = spa_node_port_enum_params_sync(this->follower,
+ this->direction, 0,
+ SPA_PARAM_Format, &state,
+ NULL, &fmt, &b)) != 1)
+ return -EIO;
+
+ format = fmt;
+ }
+
+ if (this->target != this->follower && this->convert) {
+ if ((res = spa_node_port_set_param(this->convert,
+ SPA_DIRECTION_REVERSE(this->direction), 0,
+ SPA_PARAM_Format, flags,
+ format)) < 0)
+ return res;
+ }
+
+ this->have_format = format != NULL;
+ if (format == NULL) {
+ this->n_buffers = 0;
+ } else {
+ res = negotiate_buffers(this);
+ }
+
+ return res;
+}
+
+static int configure_convert(struct impl *this, uint32_t mode)
+{
+ struct spa_pod_builder b = { 0 };
+ uint8_t buffer[1024];
+ struct spa_pod *param;
+
+ if (this->convert == NULL)
+ return 0;
+
+ spa_pod_builder_init(&b, buffer, sizeof(buffer));
+
+ spa_log_debug(this->log, "%p: configure convert %p", this, this->target);
+
+ param = spa_pod_builder_add_object(&b,
+ SPA_TYPE_OBJECT_ParamPortConfig, SPA_PARAM_PortConfig,
+ SPA_PARAM_PORT_CONFIG_direction, SPA_POD_Id(this->direction),
+ SPA_PARAM_PORT_CONFIG_mode, SPA_POD_Id(mode));
+
+ return spa_node_set_param(this->convert, SPA_PARAM_PortConfig, 0, param);
+}
+
+extern const struct spa_handle_factory spa_videoconvert_factory;
+
+static const struct spa_node_events follower_node_events;
+
+static int reconfigure_mode(struct impl *this, bool passthrough,
+ enum spa_direction direction, struct spa_pod *format)
+{
+ int res = 0;
+ struct spa_hook l;
+
+ spa_log_info(this->log, "%p: passthrough mode %d", this, passthrough);
+
+ if (this->passthrough != passthrough) {
+ if (passthrough) {
+ /* remove converter split/merge ports */
+ configure_convert(this, SPA_PARAM_PORT_CONFIG_MODE_none);
+ } else {
+ /* remove follower ports */
+ this->follower_removing = true;
+ spa_zero(l);
+ spa_node_add_listener(this->follower, &l, &follower_node_events, this);
+ spa_hook_remove(&l);
+ this->follower_removing = false;
+ }
+ }
+
+ /* set new target */
+ this->target = passthrough ? this->follower : this->convert;
+
+ if ((res = configure_format(this, SPA_NODE_PARAM_FLAG_NEAREST, format)) < 0)
+ return res;
+
+ if (this->passthrough != passthrough) {
+ this->passthrough = passthrough;
+ if (passthrough) {
+ /* add follower ports */
+ spa_zero(l);
+ spa_node_add_listener(this->follower, &l, &follower_node_events, this);
+ spa_hook_remove(&l);
+ } else {
+ /* add converter ports */
+ configure_convert(this, SPA_PARAM_PORT_CONFIG_MODE_dsp);
+ link_io(this);
+ }
+ }
+
+ this->info.change_mask |= SPA_NODE_CHANGE_MASK_FLAGS | SPA_NODE_CHANGE_MASK_PARAMS;
+ this->info.flags &= ~SPA_NODE_FLAG_NEED_CONFIGURE;
+ this->params[IDX_Props].user++;
+
+ emit_node_info(this, false);
+
+ return 0;
+}
+
+static int impl_node_set_param(void *object, uint32_t id, uint32_t flags,
+ const struct spa_pod *param)
+{
+ int res = 0, res2 = 0;
+ struct impl *this = object;
+ struct spa_video_info info = { 0 };
+
+ spa_log_debug(this->log, "%p: set param %d", this, id);
+
+ switch (id) {
+ case SPA_PARAM_Format:
+ if (this->started)
+ return -EIO;
+ if (param == NULL)
+ return -EINVAL;
+
+ if ((res = spa_format_parse(param, &info.media_type, &info.media_subtype)) < 0)
+ return res;
+ if (info.media_type != SPA_MEDIA_TYPE_video ||
+ info.media_subtype != SPA_MEDIA_SUBTYPE_raw)
+ return -EINVAL;
+
+ if (spa_format_video_raw_parse(param, &info.info.raw) < 0)
+ return -EINVAL;
+
+ this->follower_current_format = info;
+ break;
+
+ case SPA_PARAM_PortConfig:
+ {
+ enum spa_direction dir;
+ enum spa_param_port_config_mode mode;
+ struct spa_pod *format = NULL;
+
+ if (this->started) {
+ spa_log_error(this->log, "was started");
+ return -EIO;
+ }
+
+ if (spa_pod_parse_object(param,
+ SPA_TYPE_OBJECT_ParamPortConfig, NULL,
+ SPA_PARAM_PORT_CONFIG_direction, SPA_POD_Id(&dir),
+ SPA_PARAM_PORT_CONFIG_mode, SPA_POD_Id(&mode),
+ SPA_PARAM_PORT_CONFIG_format, SPA_POD_OPT_Pod(&format)) < 0)
+ return -EINVAL;
+
+ if (format) {
+ struct spa_video_info info;
+
+ spa_zero(info);
+ if ((res = spa_format_parse(format, &info.media_type, &info.media_subtype)) < 0)
+ return res;
+ if (info.media_type != SPA_MEDIA_TYPE_video ||
+ info.media_subtype != SPA_MEDIA_SUBTYPE_raw)
+ return -ENOTSUP;
+
+ if (spa_format_video_raw_parse(format, &info.info.raw) >= 0)
+ this->default_format = info;
+ }
+
+ switch (mode) {
+ case SPA_PARAM_PORT_CONFIG_MODE_none:
+ return -ENOTSUP;
+ case SPA_PARAM_PORT_CONFIG_MODE_passthrough:
+ if ((res = reconfigure_mode(this, true, dir, format)) < 0)
+ return res;
+ break;
+ case SPA_PARAM_PORT_CONFIG_MODE_convert:
+ case SPA_PARAM_PORT_CONFIG_MODE_dsp:
+ if (this->convert == NULL)
+ return -ENOTSUP;
+ if ((res = reconfigure_mode(this, false, dir, NULL)) < 0)
+ return res;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (this->target != this->follower) {
+ if ((res = spa_node_set_param(this->target, id, flags, param)) < 0)
+ return res;
+ }
+ break;
+ }
+
+ case SPA_PARAM_Props:
+ if (this->target != this->follower)
+ res = spa_node_set_param(this->target, id, flags, param);
+ res2 = spa_node_set_param(this->follower, id, flags, param);
+ if (res < 0 && res2 < 0)
+ return res;
+ res = 0;
+ break;
+ case SPA_PARAM_ProcessLatency:
+ res = spa_node_set_param(this->follower, id, flags, param);
+ break;
+ default:
+ res = -ENOTSUP;
+ break;
+ }
+ return res;
+}
+
+static int impl_node_set_io(void *object, uint32_t id, void *data, size_t size)
+{
+ struct impl *this = object;
+ int res = 0;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ switch (id) {
+ case SPA_IO_Position:
+ this->io_position = data;
+ break;
+ default:
+ break;
+ }
+
+ if (this->target)
+ res = spa_node_set_io(this->target, id, data, size);
+
+ if (this->target != this->follower)
+ res = spa_node_set_io(this->follower, id, data, size);
+
+ return res;
+}
+
+static struct spa_pod *merge_objects(struct impl *this, struct spa_pod_builder *b, uint32_t id,
+ struct spa_pod_object *o1, struct spa_pod_object *o2)
+{
+ const struct spa_pod_prop *p1, *p2;
+ struct spa_pod_frame f;
+ struct spa_pod_builder_state state;
+ int res = 0;
+
+ if (o2 == NULL || SPA_POD_TYPE(o1) != SPA_POD_TYPE(o2))
+ return (struct spa_pod*)o1;
+
+ spa_pod_builder_push_object(b, &f, o1->body.type, o1->body.id);
+ p2 = NULL;
+ SPA_POD_OBJECT_FOREACH(o1, p1) {
+ p2 = spa_pod_object_find_prop(o2, p2, p1->key);
+ if (p2 != NULL) {
+ spa_pod_builder_get_state(b, &state);
+ res = spa_pod_filter_prop(b, p1, p2);
+ if (res < 0)
+ spa_pod_builder_reset(b, &state);
+ }
+ if (p2 == NULL || res < 0)
+ spa_pod_builder_raw_padded(b, p1, SPA_POD_PROP_SIZE(p1));
+ }
+ p1 = NULL;
+ SPA_POD_OBJECT_FOREACH(o2, p2) {
+ p1 = spa_pod_object_find_prop(o1, p1, p2->key);
+ if (p1 != NULL)
+ continue;
+ spa_pod_builder_raw_padded(b, p2, SPA_POD_PROP_SIZE(p2));
+ }
+ return spa_pod_builder_pop(b, &f);
+}
+
+static int negotiate_format(struct impl *this)
+{
+ uint32_t state;
+ struct spa_pod *format, *def;
+ uint8_t buffer[4096];
+ struct spa_pod_builder b = { 0 };
+ int res;
+
+ if (this->have_format)
+ return 0;
+
+ if (this->target == this->follower)
+ return 0;
+
+ spa_pod_builder_init(&b, buffer, sizeof(buffer));
+
+ spa_log_debug(this->log, "%p: negiotiate", this);
+
+ spa_node_send_command(this->follower,
+ &SPA_NODE_COMMAND_INIT(SPA_NODE_COMMAND_ParamBegin));
+
+ state = 0;
+ format = NULL;
+ if ((res = spa_node_port_enum_params_sync(this->follower,
+ this->direction, 0,
+ SPA_PARAM_EnumFormat, &state,
+ format, &format, &b)) < 0) {
+ if (res == -ENOENT)
+ format = NULL;
+ else {
+ debug_params(this, this->follower, this->direction, 0,
+ SPA_PARAM_EnumFormat, format, "follower format", res);
+ goto done;
+ }
+ }
+ if (this->convert) {
+ state = 0;
+ if ((res = spa_node_port_enum_params_sync(this->convert,
+ SPA_DIRECTION_REVERSE(this->direction), 0,
+ SPA_PARAM_EnumFormat, &state,
+ format, &format, &b)) != 1) {
+ debug_params(this, this->convert,
+ SPA_DIRECTION_REVERSE(this->direction), 0,
+ SPA_PARAM_EnumFormat, format, "convert format", res);
+ res = -ENOTSUP;
+ goto done;
+ }
+ }
+ if (format == NULL) {
+ res = -ENOTSUP;
+ goto done;
+ }
+
+ def = spa_format_video_raw_build(&b,
+ SPA_PARAM_Format, &this->default_format.info.raw);
+
+ format = merge_objects(this, &b, SPA_PARAM_Format,
+ (struct spa_pod_object*)format,
+ (struct spa_pod_object*)def);
+
+ spa_pod_fixate(format);
+
+ res = configure_format(this, SPA_NODE_PARAM_FLAG_NEAREST, format);
+
+done:
+ spa_node_send_command(this->follower,
+ &SPA_NODE_COMMAND_INIT(SPA_NODE_COMMAND_ParamEnd));
+
+ return res;
+}
+
+
+static int impl_node_send_command(void *object, const struct spa_command *command)
+{
+ struct impl *this = object;
+ int res;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ spa_log_debug(this->log, "%p: command %d", this, SPA_NODE_COMMAND_ID(command));
+
+ switch (SPA_NODE_COMMAND_ID(command)) {
+ case SPA_NODE_COMMAND_Start:
+ if ((res = negotiate_format(this)) < 0)
+ return res;
+ if ((res = negotiate_buffers(this)) < 0)
+ return res;
+ break;
+ case SPA_NODE_COMMAND_Suspend:
+ configure_format(this, 0, NULL);
+ SPA_FALLTHROUGH
+ case SPA_NODE_COMMAND_Pause:
+ this->started = false;
+ break;
+ case SPA_NODE_COMMAND_Flush:
+ this->io_buffers.status = SPA_STATUS_OK;
+ break;
+ default:
+ break;
+ }
+
+ if ((res = spa_node_send_command(this->target, command)) < 0) {
+ spa_log_error(this->log, "%p: can't send command %d: %s",
+ this, SPA_NODE_COMMAND_ID(command),
+ spa_strerror(res));
+ return res;
+ }
+
+ if (this->target != this->follower) {
+ if ((res = spa_node_send_command(this->follower, command)) < 0) {
+ spa_log_error(this->log, "%p: can't send command %d: %s",
+ this, SPA_NODE_COMMAND_ID(command),
+ spa_strerror(res));
+ return res;
+ }
+ }
+ switch (SPA_NODE_COMMAND_ID(command)) {
+ case SPA_NODE_COMMAND_Start:
+ this->started = true;
+ break;
+ }
+ return res;
+}
+
+static void convert_node_info(void *data, const struct spa_node_info *info)
+{
+ struct impl *this = data;
+ uint32_t i;
+
+ spa_log_debug(this->log, "%p: info change:%08"PRIx64, this,
+ info->change_mask);
+
+ if (info->change_mask & SPA_NODE_CHANGE_MASK_PARAMS) {
+ for (i = 0; i < info->n_params; i++) {
+ uint32_t idx;
+
+ switch (info->params[i].id) {
+ case SPA_PARAM_EnumPortConfig:
+ idx = IDX_EnumPortConfig;
+ break;
+ case SPA_PARAM_PortConfig:
+ idx = IDX_PortConfig;
+ break;
+ case SPA_PARAM_PropInfo:
+ idx = IDX_PropInfo;
+ break;
+ case SPA_PARAM_Props:
+ idx = IDX_Props;
+ break;
+ default:
+ continue;
+ }
+ if (!this->add_listener &&
+ this->convert_params_flags[idx] == info->params[i].flags)
+ continue;
+
+ this->info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;
+ this->convert_params_flags[idx] = info->params[i].flags;
+ this->params[idx].flags =
+ (this->params[idx].flags & SPA_PARAM_INFO_SERIAL) |
+ (info->params[i].flags & SPA_PARAM_INFO_READWRITE);
+
+ if (!this->add_listener) {
+ this->params[idx].user++;
+ spa_log_debug(this->log, "param %d changed", info->params[i].id);
+ }
+ }
+ }
+ emit_node_info(this, false);
+}
+
+static void convert_port_info(void *data,
+ enum spa_direction direction, uint32_t port_id,
+ const struct spa_port_info *info)
+{
+ struct impl *this = data;
+
+ if (direction != this->direction) {
+ if (port_id == 0)
+ return;
+ else
+ port_id--;
+ }
+
+ spa_log_debug(this->log, "%p: port info %d:%d", this,
+ direction, port_id);
+
+ if (this->target != this->follower)
+ spa_node_emit_port_info(&this->hooks, direction, port_id, info);
+}
+
+static void convert_result(void *data, int seq, int res, uint32_t type, const void *result)
+{
+ struct impl *this = data;
+
+ if (this->target == this->follower)
+ return;
+
+ spa_log_trace(this->log, "%p: result %d %d", this, seq, res);
+ spa_node_emit_result(&this->hooks, seq, res, type, result);
+}
+
+static const struct spa_node_events convert_node_events = {
+ SPA_VERSION_NODE_EVENTS,
+ .info = convert_node_info,
+ .port_info = convert_port_info,
+ .result = convert_result,
+};
+
+static void follower_info(void *data, const struct spa_node_info *info)
+{
+ struct impl *this = data;
+ uint32_t i;
+
+ spa_log_debug(this->log, "%p: info change:%08"PRIx64, this,
+ info->change_mask);
+
+ if (this->follower_removing)
+ return;
+
+ this->async = (info->flags & SPA_NODE_FLAG_ASYNC) != 0;
+
+ if (info->max_input_ports > 0)
+ this->direction = SPA_DIRECTION_INPUT;
+ else
+ this->direction = SPA_DIRECTION_OUTPUT;
+
+ if (this->direction == SPA_DIRECTION_INPUT) {
+ this->info.flags |= SPA_NODE_FLAG_IN_PORT_CONFIG;
+ this->info.max_input_ports = MAX_PORTS;
+ } else {
+ this->info.flags |= SPA_NODE_FLAG_OUT_PORT_CONFIG;
+ this->info.max_output_ports = MAX_PORTS;
+ }
+
+ spa_log_debug(this->log, "%p: follower info %s", this,
+ this->direction == SPA_DIRECTION_INPUT ?
+ "Input" : "Output");
+
+ if (info->change_mask & SPA_NODE_CHANGE_MASK_PROPS) {
+ this->info.change_mask |= SPA_NODE_CHANGE_MASK_PROPS;
+ this->info.props = info->props;
+ }
+ if (info->change_mask & SPA_NODE_CHANGE_MASK_PARAMS) {
+ for (i = 0; i < info->n_params; i++) {
+ uint32_t idx;
+
+ switch (info->params[i].id) {
+ case SPA_PARAM_PropInfo:
+ idx = IDX_PropInfo;
+ break;
+ case SPA_PARAM_Props:
+ idx = IDX_Props;
+ break;
+ case SPA_PARAM_ProcessLatency:
+ idx = IDX_ProcessLatency;
+ break;
+ default:
+ continue;
+ }
+ if (!this->add_listener &&
+ this->follower_params_flags[idx] == info->params[i].flags)
+ continue;
+
+ this->info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;
+ this->follower_params_flags[idx] = info->params[i].flags;
+ this->params[idx].flags =
+ (this->params[idx].flags & SPA_PARAM_INFO_SERIAL) |
+ (info->params[i].flags & SPA_PARAM_INFO_READWRITE);
+
+ if (!this->add_listener) {
+ this->params[idx].user++;
+ spa_log_debug(this->log, "param %d changed", info->params[i].id);
+ }
+ }
+ }
+ emit_node_info(this, false);
+
+ spa_zero(this->info.props);
+ this->info.change_mask &= ~SPA_NODE_CHANGE_MASK_PROPS;
+
+}
+
+static int recalc_latency(struct impl *this, enum spa_direction direction, uint32_t port_id)
+{
+ struct spa_pod_builder b = { 0 };
+ uint8_t buffer[1024];
+ struct spa_pod *param;
+ uint32_t index = 0;
+ struct spa_latency_info latency;
+ int res;
+
+ spa_log_debug(this->log, "%p: ", this);
+
+ if (this->target == this->follower)
+ return 0;
+
+ while (true) {
+ spa_pod_builder_init(&b, buffer, sizeof(buffer));
+ if ((res = spa_node_port_enum_params_sync(this->follower,
+ direction, port_id, SPA_PARAM_Latency,
+ &index, NULL, &param, &b)) != 1)
+ return res;
+ if ((res = spa_latency_parse(param, &latency)) < 0)
+ return res;
+ if (latency.direction == direction)
+ break;
+ }
+ if ((res = spa_node_port_set_param(this->target,
+ SPA_DIRECTION_REVERSE(direction), 0,
+ SPA_PARAM_Latency, 0, param)) < 0)
+ return res;
+
+ return 0;
+}
+
+static void follower_port_info(void *data,
+ enum spa_direction direction, uint32_t port_id,
+ const struct spa_port_info *info)
+{
+ struct impl *this = data;
+ uint32_t i;
+ int res;
+
+ if (this->follower_removing) {
+ spa_node_emit_port_info(&this->hooks, direction, port_id, NULL);
+ return;
+ }
+
+ spa_log_debug(this->log, "%p: follower port info %s %p %08"PRIx64, this,
+ this->direction == SPA_DIRECTION_INPUT ?
+ "Input" : "Output", info, info->change_mask);
+
+ if (info->change_mask & SPA_PORT_CHANGE_MASK_PARAMS) {
+ for (i = 0; i < info->n_params; i++) {
+ uint32_t idx;
+
+ switch (info->params[i].id) {
+ case SPA_PARAM_EnumFormat:
+ idx = IDX_EnumFormat;
+ break;
+ case SPA_PARAM_Format:
+ idx = IDX_Format;
+ break;
+ case SPA_PARAM_Latency:
+ idx = IDX_Latency;
+ break;
+ default:
+ continue;
+ }
+ if (!this->add_listener &&
+ this->follower_params_flags[idx] == info->params[i].flags)
+ continue;
+
+ this->follower_params_flags[idx] = info->params[i].flags;
+ this->params[idx].flags =
+ (this->params[idx].flags & SPA_PARAM_INFO_SERIAL) |
+ (info->params[i].flags & SPA_PARAM_INFO_READWRITE);
+
+ if (idx == IDX_Latency) {
+ res = recalc_latency(this, direction, port_id);
+ spa_log_debug(this->log, "latency: %d (%s)", res,
+ spa_strerror(res));
+ }
+
+ this->info.change_mask |= SPA_NODE_CHANGE_MASK_PARAMS;
+ if (!this->add_listener) {
+ this->params[idx].user++;
+ spa_log_debug(this->log, "param %d changed", info->params[i].id);
+ }
+ }
+ }
+ emit_node_info(this, false);
+
+ if (this->target == this->follower)
+ spa_node_emit_port_info(&this->hooks, direction, port_id, info);
+}
+
+static void follower_result(void *data, int seq, int res, uint32_t type, const void *result)
+{
+ struct impl *this = data;
+
+ if (this->target != this->follower)
+ return;
+
+ spa_log_trace(this->log, "%p: result %d %d", this, seq, res);
+ spa_node_emit_result(&this->hooks, seq, res, type, result);
+}
+
+static void follower_event(void *data, const struct spa_event *event)
+{
+ struct impl *this = data;
+
+ spa_log_trace(this->log, "%p: event %d", this, SPA_EVENT_TYPE(event));
+
+ switch (SPA_NODE_EVENT_ID(event)) {
+ case SPA_NODE_EVENT_Error:
+ /* Forward errors */
+ spa_node_emit_event(&this->hooks, event);
+ break;
+ default:
+ /* Ignore other events */
+ break;
+ }
+}
+
+static const struct spa_node_events follower_node_events = {
+ SPA_VERSION_NODE_EVENTS,
+ .info = follower_info,
+ .port_info = follower_port_info,
+ .result = follower_result,
+ .event = follower_event,
+};
+
+static int follower_ready(void *data, int status)
+{
+ struct impl *this = data;
+
+ spa_log_trace_fp(this->log, "%p: ready %d", this, status);
+
+ if (this->target != this->follower) {
+ this->driver = true;
+
+ if (this->direction == SPA_DIRECTION_OUTPUT) {
+ int retry = 8;
+ while (retry--) {
+ status = spa_node_process(this->convert);
+ if (status & SPA_STATUS_HAVE_DATA)
+ break;
+
+ if (status & SPA_STATUS_NEED_DATA) {
+ status = spa_node_process(this->follower);
+ if (!(status & SPA_STATUS_HAVE_DATA))
+ break;
+ }
+ }
+
+ }
+ }
+
+ return spa_node_call_ready(&this->callbacks, status);
+}
+
+static int follower_reuse_buffer(void *data, uint32_t port_id, uint32_t buffer_id)
+{
+ int res;
+ struct impl *this = data;
+
+ if (this->target != this->follower && this->convert)
+ res = spa_node_port_reuse_buffer(this->convert, port_id, buffer_id);
+ else
+ res = spa_node_call_reuse_buffer(&this->callbacks, port_id, buffer_id);
+
+ return res;
+}
+
+static int follower_xrun(void *data, uint64_t trigger, uint64_t delay, struct spa_pod *info)
+{
+ struct impl *this = data;
+ return spa_node_call_xrun(&this->callbacks, trigger, delay, info);
+}
+
+static const struct spa_node_callbacks follower_node_callbacks = {
+ SPA_VERSION_NODE_CALLBACKS,
+ .ready = follower_ready,
+ .reuse_buffer = follower_reuse_buffer,
+ .xrun = follower_xrun,
+};
+
+static int impl_node_add_listener(void *object,
+ struct spa_hook *listener,
+ const struct spa_node_events *events,
+ void *data)
+{
+ struct impl *this = object;
+ struct spa_hook l;
+ struct spa_hook_list save;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ spa_log_trace(this->log, "%p: add listener %p", this, listener);
+ spa_hook_list_isolate(&this->hooks, &save, listener, events, data);
+
+ if (events->info || events->port_info) {
+ this->add_listener = true;
+
+ spa_zero(l);
+ spa_node_add_listener(this->follower, &l, &follower_node_events, this);
+ spa_hook_remove(&l);
+
+ if (this->convert) {
+ spa_zero(l);
+ spa_node_add_listener(this->convert, &l, &convert_node_events, this);
+ spa_hook_remove(&l);
+ }
+ this->add_listener = false;
+
+ emit_node_info(this, true);
+ }
+ spa_hook_list_join(&this->hooks, &save);
+
+ return 0;
+}
+
+static int
+impl_node_set_callbacks(void *object,
+ const struct spa_node_callbacks *callbacks,
+ void *data)
+{
+ struct impl *this = object;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ this->callbacks = SPA_CALLBACKS_INIT(callbacks, data);
+
+ return 0;
+}
+
+static int
+impl_node_sync(void *object, int seq)
+{
+ struct impl *this = object;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ return spa_node_sync(this->follower, seq);
+}
+
+static int
+impl_node_add_port(void *object, enum spa_direction direction, uint32_t port_id,
+ const struct spa_dict *props)
+{
+ struct impl *this = object;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ if (direction != this->direction)
+ return -EINVAL;
+
+ return spa_node_add_port(this->target, direction, port_id, props);
+}
+
+static int
+impl_node_remove_port(void *object, enum spa_direction direction, uint32_t port_id)
+{
+ struct impl *this = object;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ if (direction != this->direction)
+ return -EINVAL;
+
+ return spa_node_remove_port(this->target, direction, port_id);
+}
+
+static int
+impl_node_port_enum_params(void *object, int seq,
+ enum spa_direction direction, uint32_t port_id,
+ uint32_t id, uint32_t start, uint32_t num,
+ const struct spa_pod *filter)
+{
+ struct impl *this = object;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+ spa_return_val_if_fail(num != 0, -EINVAL);
+
+ if (direction != this->direction)
+ port_id++;
+
+ spa_log_debug(this->log, "%p: %d %u", this, seq, id);
+
+ return spa_node_port_enum_params(this->target, seq, direction, port_id, id,
+ start, num, filter);
+}
+
+static int
+impl_node_port_set_param(void *object,
+ enum spa_direction direction, uint32_t port_id,
+ uint32_t id, uint32_t flags,
+ const struct spa_pod *param)
+{
+ struct impl *this = object;
+ int res;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ spa_log_debug(this->log, " %d %d %d %d", port_id, id, direction, this->direction);
+
+ if (direction != this->direction)
+ port_id++;
+
+ if ((res = spa_node_port_set_param(this->target, direction, port_id, id,
+ flags, param)) < 0)
+ return res;
+
+ if ((id == SPA_PARAM_Latency) &&
+ direction == this->direction) {
+ if ((res = spa_node_port_set_param(this->follower, direction, 0, id,
+ flags, param)) < 0)
+ return res;
+ }
+
+ return res;
+}
+
+static int
+impl_node_port_set_io(void *object,
+ enum spa_direction direction,
+ uint32_t port_id,
+ uint32_t id,
+ void *data, size_t size)
+{
+ struct impl *this = object;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ spa_log_debug(this->log, "set io %d %d %d %d", port_id, id, direction, this->direction);
+
+ if (direction != this->direction)
+ port_id++;
+
+ return spa_node_port_set_io(this->target, direction, port_id, id, data, size);
+}
+
+static int
+impl_node_port_use_buffers(void *object,
+ enum spa_direction direction,
+ uint32_t port_id,
+ uint32_t flags,
+ struct spa_buffer **buffers,
+ uint32_t n_buffers)
+{
+ struct impl *this = object;
+ int res;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ if (direction != this->direction)
+ port_id++;
+
+ spa_log_debug(this->log, "%p: %d %d:%d", this,
+ n_buffers, direction, port_id);
+
+ if ((res = spa_node_port_use_buffers(this->target,
+ direction, port_id, flags, buffers, n_buffers)) < 0)
+ return res;
+
+ return res;
+}
+
+static int
+impl_node_port_reuse_buffer(void *object, uint32_t port_id, uint32_t buffer_id)
+{
+ struct impl *this = object;
+
+ spa_return_val_if_fail(this != NULL, -EINVAL);
+
+ return spa_node_port_reuse_buffer(this->target, port_id, buffer_id);
+}
+
+static int impl_node_process(void *object)
+{
+ struct impl *this = object;
+ int status = 0, fstatus, retry = 8;
+
+ spa_log_trace_fp(this->log, "%p: process convert:%p driver:%d",
+ this, this->convert, this->driver);
+
+ if (this->target == this->follower) {
+ if (this->io_position)
+ this->io_rate_match.size = this->io_position->clock.duration;
+ return spa_node_process(this->follower);
+ }
+
+ if (this->direction == SPA_DIRECTION_INPUT) {
+ /* an input node (sink).
+ * First we run the converter to process the input for the follower
+ * then if it produced data, we run the follower. */
+ while (retry--) {
+ status = this->convert ? spa_node_process(this->convert) : 0;
+ /* schedule the follower when the converter needed
+ * a recycled buffer */
+ if (status == -EPIPE || status == 0)
+ status = SPA_STATUS_HAVE_DATA;
+ else if (status < 0)
+ break;
+
+ if (status & (SPA_STATUS_HAVE_DATA | SPA_STATUS_DRAINED)) {
+ /* as long as the converter produced something or
+ * is drained, process the follower. */
+ fstatus = spa_node_process(this->follower);
+ if (fstatus < 0) {
+ status = fstatus;
+ break;
+ }
+ /* if the follower doesn't need more data or is
+ * drained we can stop */
+ if ((fstatus & SPA_STATUS_NEED_DATA) == 0 ||
+ (fstatus & SPA_STATUS_DRAINED))
+ break;
+ }
+ /* the converter needs more data */
+ if ((status & SPA_STATUS_NEED_DATA))
+ break;
+ }
+ } else if (!this->driver) {
+ bool done = false;
+ while (retry--) {
+ /* output node (source). First run the converter to make
+ * sure we push out any queued data. Then when it needs
+ * more data, schedule the follower. */
+ status = this->convert ? spa_node_process(this->convert) : 0;
+ if (status == 0)
+ status = SPA_STATUS_NEED_DATA;
+ else if (status < 0)
+ break;
+
+ done = (status & (SPA_STATUS_HAVE_DATA | SPA_STATUS_DRAINED));
+
+ /* when not async, we can return the data when we are done.
+ * In async mode we might first need to wake up the follower
+ * to asynchronously provide more data for the next round. */
+ if (!this->async && done)
+ break;
+
+ if (status & SPA_STATUS_NEED_DATA) {
+ /* the converter needs more data, schedule the
+ * follower */
+ fstatus = spa_node_process(this->follower);
+ if (fstatus < 0) {
+ status = fstatus;
+ break;
+ }
+ /* if the follower didn't produce more data or is
+ * not drained we can stop now */
+ if ((fstatus & (SPA_STATUS_HAVE_DATA | SPA_STATUS_DRAINED)) == 0)
+ break;
+ }
+ /* converter produced something or is drained and we
+ * scheduled the follower above, we can stop now*/
+ if (done)
+ break;
+ }
+ if (!done)
+ spa_node_call_xrun(&this->callbacks, 0, 0, NULL);
+
+ } else {
+ status = spa_node_process(this->follower);
+ }
+ spa_log_trace_fp(this->log, "%p: process status:%d", this, status);
+
+ this->driver = false;
+
+ return status;
+}
+
+static const struct spa_node_methods impl_node = {
+ SPA_VERSION_NODE_METHODS,
+ .add_listener = impl_node_add_listener,
+ .set_callbacks = impl_node_set_callbacks,
+ .sync = impl_node_sync,
+ .enum_params = impl_node_enum_params,
+ .set_param = impl_node_set_param,
+ .set_io = impl_node_set_io,
+ .send_command = impl_node_send_command,
+ .add_port = impl_node_add_port,
+ .remove_port = impl_node_remove_port,
+ .port_enum_params = impl_node_port_enum_params,
+ .port_set_param = impl_node_port_set_param,
+ .port_use_buffers = impl_node_port_use_buffers,
+ .port_set_io = impl_node_port_set_io,
+ .port_reuse_buffer = impl_node_port_reuse_buffer,
+ .process = impl_node_process,
+};
+
+static int impl_get_interface(struct spa_handle *handle, const char *type, void **interface)
+{
+ struct impl *this;
+
+ spa_return_val_if_fail(handle != NULL, -EINVAL);
+ spa_return_val_if_fail(interface != NULL, -EINVAL);
+
+ this = (struct impl *) handle;
+
+ if (spa_streq(type, SPA_TYPE_INTERFACE_Node))
+ *interface = &this->node;
+ else
+ return -ENOENT;
+
+ return 0;
+}
+
+static int impl_clear(struct spa_handle *handle)
+{
+ struct impl *this;
+
+ spa_return_val_if_fail(handle != NULL, -EINVAL);
+
+ this = (struct impl *) handle;
+
+ spa_hook_remove(&this->follower_listener);
+ spa_node_set_callbacks(this->follower, NULL, NULL);
+
+ if (this->hnd_convert)
+ spa_handle_clear(this->hnd_convert);
+
+ if (this->buffers)
+ free(this->buffers);
+ this->buffers = NULL;
+
+ return 0;
+}
+
+
+static size_t
+impl_get_size(const struct spa_handle_factory *factory,
+ const struct spa_dict *params)
+{
+ size_t size = 0;
+
+#if 0
+ size += spa_handle_factory_get_size(&spa_videoconvert_factory, params);
+#endif
+ size += sizeof(struct impl);
+
+ return size;
+}
+
+static int
+impl_init(const struct spa_handle_factory *factory,
+ struct spa_handle *handle,
+ const struct spa_dict *info,
+ const struct spa_support *support,
+ uint32_t n_support)
+{
+ struct impl *this;
+#if 0
+ void *iface;
+#endif
+ const char *str;
+
+ spa_return_val_if_fail(factory != NULL, -EINVAL);
+ spa_return_val_if_fail(handle != NULL, -EINVAL);
+
+ handle->get_interface = impl_get_interface;
+ handle->clear = impl_clear;
+
+ this = (struct impl *) handle;
+
+ this->log = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_Log);
+ spa_log_topic_init(this->log, log_topic);
+
+ this->cpu = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_CPU);
+
+ if (info == NULL ||
+ (str = spa_dict_lookup(info, "video.adapt.follower")) == NULL)
+ return -EINVAL;
+
+ sscanf(str, "pointer:%p", &this->follower);
+ if (this->follower == NULL)
+ return -EINVAL;
+
+ if (this->cpu)
+ this->max_align = spa_cpu_get_max_align(this->cpu);
+
+ spa_hook_list_init(&this->hooks);
+
+ this->node.iface = SPA_INTERFACE_INIT(
+ SPA_TYPE_INTERFACE_Node,
+ SPA_VERSION_NODE,
+ &impl_node, this);
+
+#if 0
+ this->hnd_convert = SPA_PTROFF(this, sizeof(struct impl), struct spa_handle);
+ spa_handle_factory_init(&spa_videoconvert_factory,
+ this->hnd_convert,
+ info, support, n_support);
+
+ spa_handle_get_interface(this->hnd_convert, SPA_TYPE_INTERFACE_Node, &iface);
+ this->convert = iface;
+#endif
+ this->target = this->convert;
+
+ this->info_all = SPA_NODE_CHANGE_MASK_FLAGS |
+ SPA_NODE_CHANGE_MASK_PARAMS;
+ this->info = SPA_NODE_INFO_INIT();
+ this->info.flags = SPA_NODE_FLAG_RT |
+ SPA_NODE_FLAG_NEED_CONFIGURE;
+ this->params[IDX_EnumFormat] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ);
+ this->params[IDX_PropInfo] = SPA_PARAM_INFO(SPA_PARAM_PropInfo, SPA_PARAM_INFO_READ);
+ this->params[IDX_Props] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_READWRITE);
+ this->params[IDX_Format] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE);
+ this->params[IDX_EnumPortConfig] = SPA_PARAM_INFO(SPA_PARAM_EnumPortConfig, SPA_PARAM_INFO_READ);
+ this->params[IDX_PortConfig] = SPA_PARAM_INFO(SPA_PARAM_PortConfig, SPA_PARAM_INFO_READWRITE);
+ this->params[IDX_Latency] = SPA_PARAM_INFO(SPA_PARAM_Latency, SPA_PARAM_INFO_READWRITE);
+ this->params[IDX_ProcessLatency] = SPA_PARAM_INFO(SPA_PARAM_ProcessLatency, SPA_PARAM_INFO_READWRITE);
+ this->info.params = this->params;
+ this->info.n_params = N_NODE_PARAMS;
+
+ spa_node_add_listener(this->follower,
+ &this->follower_listener, &follower_node_events, this);
+ spa_node_set_callbacks(this->follower, &follower_node_callbacks, this);
+
+ if (this->convert)
+ spa_node_add_listener(this->convert,
+ &this->convert_listener, &convert_node_events, this);
+
+ reconfigure_mode(this, true, this->direction, NULL);
+
+ link_io(this);
+
+ return 0;
+}
+
+static const struct spa_interface_info impl_interfaces[] = {
+ { SPA_TYPE_INTERFACE_Node, },
+};
+
+static int
+impl_enum_interface_info(const struct spa_handle_factory *factory,
+ const struct spa_interface_info **info,
+ uint32_t *index)
+{
+ spa_return_val_if_fail(factory != NULL, -EINVAL);
+ spa_return_val_if_fail(info != NULL, -EINVAL);
+ spa_return_val_if_fail(index != NULL, -EINVAL);
+
+ switch (*index) {
+ case 0:
+ *info = &impl_interfaces[*index];
+ break;
+ default:
+ return 0;
+ }
+ (*index)++;
+ return 1;
+}
+
+const struct spa_handle_factory spa_videoadapter_factory = {
+ .version = SPA_VERSION_HANDLE_FACTORY,
+ .name = SPA_NAME_VIDEO_ADAPT,
+ .get_size = impl_get_size,
+ .init = impl_init,
+ .enum_interface_info = impl_enum_interface_info,
+};