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https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-04 13:30:12 -05:00
move things around
This commit is contained in:
Wim Taymans
parent
847cef83b6
commit
d1655196c3
130 changed files with 363 additions and 335 deletions
296
src/examples/video-src.c
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296
src/examples/video-src.c
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/* PipeWire
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* Copyright (C) 2017 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <stdio.h>
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#include <errno.h>
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#include <time.h>
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#include <sys/mman.h>
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#include <spa/type-map.h>
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#include <spa/format-utils.h>
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#include <spa/video/format-utils.h>
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#include <spa/format-builder.h>
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#include <spa/props.h>
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#include <spa/lib/debug.h>
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#include <pipewire/pipewire.h>
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#include <pipewire/sig.h>
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struct type {
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uint32_t format;
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uint32_t props;
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struct spa_type_meta meta;
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struct spa_type_data data;
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struct spa_type_media_type media_type;
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struct spa_type_media_subtype media_subtype;
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struct spa_type_format_video format_video;
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struct spa_type_video_format video_format;
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};
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static inline void init_type(struct type *type, struct spa_type_map *map)
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{
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type->format = spa_type_map_get_id(map, SPA_TYPE__Format);
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type->props = spa_type_map_get_id(map, SPA_TYPE__Props);
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spa_type_meta_map(map, &type->meta);
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spa_type_data_map(map, &type->data);
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spa_type_media_type_map(map, &type->media_type);
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spa_type_media_subtype_map(map, &type->media_subtype);
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spa_type_format_video_map(map, &type->format_video);
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spa_type_video_format_map(map, &type->video_format);
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}
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#define BPP 3
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struct data {
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struct type type;
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bool running;
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struct pw_loop *loop;
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struct spa_source *timer;
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struct pw_core *core;
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struct pw_remote *remote;
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struct pw_listener on_state_changed;
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struct pw_stream *stream;
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struct pw_listener on_stream_state_changed;
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struct pw_listener on_stream_format_changed;
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struct spa_video_info_raw format;
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int32_t stride;
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uint8_t params_buffer[1024];
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int counter;
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uint32_t seq;
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};
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static void on_timeout(struct spa_loop_utils *utils, struct spa_source *source, void *userdata)
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{
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struct data *data = userdata;
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uint32_t id;
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struct spa_buffer *buf;
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int i, j;
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uint8_t *p, *map;
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struct spa_meta_header *h;
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id = pw_stream_get_empty_buffer(data->stream);
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if (id == SPA_ID_INVALID)
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return;
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buf = pw_stream_peek_buffer(data->stream, id);
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if (buf->datas[0].type == data->type.data.MemFd) {
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map =
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mmap(NULL, buf->datas[0].maxsize + buf->datas[0].mapoffset,
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PROT_READ | PROT_WRITE, MAP_SHARED, buf->datas[0].fd, 0);
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if (map == MAP_FAILED) {
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printf("failed to mmap: %s\n", strerror(errno));
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return;
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}
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p = SPA_MEMBER(map, buf->datas[0].mapoffset, uint8_t);
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} else if (buf->datas[0].type == data->type.data.MemPtr) {
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map = NULL;
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p = buf->datas[0].data;
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} else
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return;
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if ((h = spa_buffer_find_meta(buf, data->type.meta.Header))) {
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#if 0
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struct timespec now;
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clock_gettime(CLOCK_MONOTONIC, &now);
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h->pts = SPA_TIMESPEC_TO_TIME(&now);
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#else
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h->pts = -1;
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#endif
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h->flags = 0;
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h->seq = data->seq++;
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h->dts_offset = 0;
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}
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for (i = 0; i < data->format.size.height; i++) {
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for (j = 0; j < data->format.size.width * BPP; j++) {
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p[j] = data->counter + j * i;
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}
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p += buf->datas[0].chunk->stride;
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data->counter += 13;
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}
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if (map)
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munmap(map, buf->datas[0].maxsize + buf->datas[0].mapoffset);
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pw_stream_send_buffer(data->stream, id);
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}
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static void on_stream_state_changed(struct pw_listener *listener, struct pw_stream *stream)
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{
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struct data *data = SPA_CONTAINER_OF(listener, struct data, on_stream_state_changed);
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printf("stream state: \"%s\"\n", pw_stream_state_as_string(stream->state));
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switch (stream->state) {
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case PW_STREAM_STATE_PAUSED:
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pw_loop_update_timer(data->loop, data->timer, NULL, NULL, false);
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break;
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case PW_STREAM_STATE_STREAMING:
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{
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struct timespec timeout, interval;
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timeout.tv_sec = 0;
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timeout.tv_nsec = 1;
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interval.tv_sec = 0;
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interval.tv_nsec = 40 * SPA_NSEC_PER_MSEC;
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pw_loop_update_timer(data->loop, data->timer, &timeout, &interval, false);
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break;
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}
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default:
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break;
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}
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}
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#define PROP(f,key,type,...) \
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SPA_POD_PROP (f,key,0,type,1,__VA_ARGS__)
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#define PROP_U_MM(f,key,type,...) \
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SPA_POD_PROP (f,key,SPA_POD_PROP_FLAG_UNSET | \
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SPA_POD_PROP_RANGE_MIN_MAX,type,3,__VA_ARGS__)
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static void
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on_stream_format_changed(struct pw_listener *listener,
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struct pw_stream *stream, struct spa_format *format)
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{
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struct data *data = SPA_CONTAINER_OF(listener, struct data, on_stream_format_changed);
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struct pw_remote *remote = stream->remote;
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struct pw_core *core = remote->core;
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struct spa_pod_builder b = { NULL };
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struct spa_pod_frame f[2];
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struct spa_param *params[2];
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if (format == NULL) {
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pw_stream_finish_format(stream, SPA_RESULT_OK, NULL, 0);
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return;
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}
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spa_format_video_raw_parse(format, &data->format, &data->type.format_video);
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data->stride = SPA_ROUND_UP_N(data->format.size.width * BPP, 4);
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spa_pod_builder_init(&b, data->params_buffer, sizeof(data->params_buffer));
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spa_pod_builder_object(&b, &f[0], 0, core->type.param_alloc_buffers.Buffers,
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PROP(&f[1], core->type.param_alloc_buffers.size, SPA_POD_TYPE_INT,
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data->stride * data->format.size.height),
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PROP(&f[1], core->type.param_alloc_buffers.stride, SPA_POD_TYPE_INT,
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data->stride),
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PROP_U_MM(&f[1], core->type.param_alloc_buffers.buffers, SPA_POD_TYPE_INT,
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32,
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2, 32),
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PROP(&f[1], core->type.param_alloc_buffers.align, SPA_POD_TYPE_INT,
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16));
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params[0] = SPA_POD_BUILDER_DEREF(&b, f[0].ref, struct spa_param);
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spa_pod_builder_object(&b, &f[0], 0, core->type.param_alloc_meta_enable.MetaEnable,
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PROP(&f[1], core->type.param_alloc_meta_enable.type, SPA_POD_TYPE_ID,
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core->type.meta.Header),
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PROP(&f[1], core->type.param_alloc_meta_enable.size, SPA_POD_TYPE_INT,
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sizeof(struct spa_meta_header)));
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params[1] = SPA_POD_BUILDER_DEREF(&b, f[0].ref, struct spa_param);
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pw_stream_finish_format(stream, SPA_RESULT_OK, params, 2);
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}
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static void on_state_changed(struct pw_listener *listener, struct pw_remote *remote)
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{
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struct data *data = SPA_CONTAINER_OF(listener, struct data, on_state_changed);
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switch (remote->state) {
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case PW_REMOTE_STATE_ERROR:
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printf("remote error: %s\n", remote->error);
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data->running = false;
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break;
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case PW_REMOTE_STATE_CONNECTED:
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{
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const struct spa_format *formats[1];
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uint8_t buffer[1024];
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struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buffer, sizeof(buffer));
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struct spa_pod_frame f[2];
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printf("remote state: \"%s\"\n",
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pw_remote_state_as_string(remote->state));
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data->stream = pw_stream_new(remote, "video-src", NULL);
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spa_pod_builder_format(&b, &f[0], data->type.format,
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data->type.media_type.video,
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data->type.media_subtype.raw,
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PROP(&f[1], data->type.format_video.format, SPA_POD_TYPE_ID,
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data->type.video_format.RGB),
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PROP_U_MM(&f[1], data->type.format_video.size, SPA_POD_TYPE_RECTANGLE,
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320, 240,
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1, 1, 4096, 4096),
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PROP(&f[1], data->type.format_video.framerate, SPA_POD_TYPE_FRACTION,
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25, 1));
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formats[0] = SPA_POD_BUILDER_DEREF(&b, f[0].ref, struct spa_format);
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pw_signal_add(&data->stream->state_changed,
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&data->on_stream_state_changed, on_stream_state_changed);
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pw_signal_add(&data->stream->format_changed,
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&data->on_stream_format_changed, on_stream_format_changed);
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pw_stream_connect(data->stream,
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PW_DIRECTION_OUTPUT,
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PW_STREAM_MODE_BUFFER,
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NULL, PW_STREAM_FLAG_NONE, 1, formats);
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break;
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}
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default:
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printf("remote state: \"%s\"\n", pw_remote_state_as_string(remote->state));
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break;
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}
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}
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int main(int argc, char *argv[])
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{
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struct data data = { 0, };
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pw_init(&argc, &argv);
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data.loop = pw_loop_new();
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data.running = true;
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data.core = pw_core_new(data.loop, NULL);
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data.remote = pw_remote_new(data.core, NULL);
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init_type(&data.type, data.core->type.map);
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data.timer = pw_loop_add_timer(data.loop, on_timeout, &data);
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pw_signal_add(&data.remote->state_changed, &data.on_state_changed, on_state_changed);
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pw_remote_connect(data.remote);
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pw_loop_enter(data.loop);
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while (data.running) {
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pw_loop_iterate(data.loop, -1);
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}
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pw_loop_leave(data.loop);
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pw_remote_destroy(data.remote);
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pw_loop_destroy(data.loop);
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return 0;
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}
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