diff --git a/spa/plugins/libcamera/libcamera-source.cpp b/spa/plugins/libcamera/libcamera-source.cpp index 52fcf4870..9a46f93c2 100644 --- a/spa/plugins/libcamera/libcamera-source.cpp +++ b/spa/plugins/libcamera/libcamera-source.cpp @@ -1,12 +1,16 @@ /* Spa libcamera source */ /* SPDX-FileCopyrightText: Copyright © 2020 Collabora Ltd. */ /* @author Raghavendra Rao Sidlagatta */ +/* SPDX-FileCopyrightText: Copyright © 2021 Wim Taymans */ /* SPDX-License-Identifier: MIT */ +#include #include #include #include +#include + #include #include #include @@ -29,6 +33,7 @@ #include #include +#include #include #include #include @@ -177,7 +182,1158 @@ struct impl { #define GET_OUT_PORT(impl,p) (&impl->out_ports[p]) #define GET_PORT(impl,d,p) GET_OUT_PORT(impl,p) -#include "libcamera-utils.cpp" +static void setup_initial_controls(const ControlInfoMap& ctrl_infos, ControlList& ctrls) +{ + /* Libcamera recommends cameras default to manual focus mode, but we don't + * expose any focus controls. So, specifically enable autofocus on + * cameras which support it. */ + auto af_it = ctrl_infos.find(libcamera::controls::AF_MODE); + if (af_it != ctrl_infos.end()) { + const ControlInfo &ctrl_info = af_it->second; + auto is_af_continuous = [](const ControlValue &value) { + return value.get() == libcamera::controls::AfModeContinuous; + }; + if (std::any_of(ctrl_info.values().begin(), + ctrl_info.values().end(), is_af_continuous)) { + ctrls.set(libcamera::controls::AF_MODE, + libcamera::controls::AfModeContinuous); + } + } + + auto ae_it = ctrl_infos.find(libcamera::controls::AE_ENABLE); + if (ae_it != ctrl_infos.end()) { + ctrls.set(libcamera::controls::AE_ENABLE, true); + } +} + +int spa_libcamera_open(struct impl *impl) +{ + if (impl->acquired) + return 0; + + spa_log_info(impl->log, "open camera %s", impl->device_id.c_str()); + impl->camera->acquire(); + + impl->allocator = new FrameBufferAllocator(impl->camera); + + const ControlInfoMap &controls = impl->camera->controls(); + setup_initial_controls(controls, impl->initial_controls); + + impl->acquired = true; + return 0; +} + +int spa_libcamera_close(struct impl *impl) +{ + struct port *port = &impl->out_ports[0]; + if (!impl->acquired) + return 0; + if (impl->active || port->current_format) + return 0; + + spa_log_info(impl->log, "close camera %s", impl->device_id.c_str()); + delete impl->allocator; + impl->allocator = nullptr; + + impl->camera->release(); + + impl->acquired = false; + return 0; +} + +static void spa_libcamera_get_config(struct impl *impl) +{ + if (impl->config) + return; + + impl->config = impl->camera->generateConfiguration({ StreamRole::VideoRecording }); +} + +static int spa_libcamera_buffer_recycle(struct impl *impl, struct port *port, uint32_t buffer_id) +{ + struct buffer *b = &port->buffers[buffer_id]; + int res; + + if (!SPA_FLAG_IS_SET(b->flags, BUFFER_FLAG_OUTSTANDING)) + return 0; + + SPA_FLAG_CLEAR(b->flags, BUFFER_FLAG_OUTSTANDING); + + if (buffer_id >= impl->requestPool.size()) { + spa_log_warn(impl->log, "invalid buffer_id %u >= %zu", + buffer_id, impl->requestPool.size()); + return -EINVAL; + } + Request *request = impl->requestPool[buffer_id].get(); + Stream *stream = port->streamConfig.stream(); + FrameBuffer *buffer = impl->allocator->buffers(stream)[buffer_id].get(); + if ((res = request->addBuffer(stream, buffer)) < 0) { + spa_log_warn(impl->log, "can't add buffer %u for request: %s", + buffer_id, spa_strerror(res)); + return -ENOMEM; + } + if (!impl->active) { + impl->pendingRequests.push_back(request); + return 0; + } else { + request->controls().merge(impl->ctrls); + impl->ctrls.clear(); + if ((res = impl->camera->queueRequest(request)) < 0) { + spa_log_warn(impl->log, "can't queue buffer %u: %s", + buffer_id, spa_strerror(res)); + return res == -EACCES ? -EBUSY : res; + } + } + return 0; +} + +static int allocBuffers(struct impl *impl, struct port *port, unsigned int count) +{ + int res; + + if ((res = impl->allocator->allocate(port->streamConfig.stream())) < 0) + return res; + + for (unsigned int i = 0; i < count; i++) { + std::unique_ptr request = impl->camera->createRequest(i); + if (!request) { + impl->requestPool.clear(); + return -ENOMEM; + } + impl->requestPool.push_back(std::move(request)); + } + + /* Some devices require data for each output video frame to be + * placed in discontiguous memory buffers. In such cases, one + * video frame has to be addressed using more than one memory. + * address. Therefore, need calculate the number of discontiguous + * memory and allocate the specified amount of memory */ + Stream *stream = impl->config->at(0).stream(); + const std::vector> &bufs = + impl->allocator->buffers(stream); + const std::vector &planes = bufs[0]->planes(); + int fd = -1; + uint32_t buffers_blocks = 0; + + for (const FrameBuffer::Plane &plane : planes) { + const int current_fd = plane.fd.get(); + if (current_fd >= 0 && current_fd != fd) { + buffers_blocks += 1; + fd = current_fd; + } + } + + if (buffers_blocks > 0) { + port->buffers_blocks = buffers_blocks; + } + return res; +} + +static void freeBuffers(struct impl *impl, struct port *port) +{ + impl->pendingRequests.clear(); + impl->requestPool.clear(); + impl->allocator->free(port->streamConfig.stream()); +} + +static int spa_libcamera_clear_buffers(struct impl *impl, struct port *port) +{ + uint32_t i; + + if (port->n_buffers == 0) + return 0; + + for (i = 0; i < port->n_buffers; i++) { + struct buffer *b; + struct spa_data *d; + + b = &port->buffers[i]; + d = b->outbuf->datas; + + if (SPA_FLAG_IS_SET(b->flags, BUFFER_FLAG_OUTSTANDING)) { + spa_log_debug(impl->log, "queueing outstanding buffer %p", b); + spa_libcamera_buffer_recycle(impl, port, i); + } + if (SPA_FLAG_IS_SET(b->flags, BUFFER_FLAG_MAPPED)) { + munmap(SPA_PTROFF(b->ptr, -d[0].mapoffset, void), + d[0].maxsize - d[0].mapoffset); + } + if (SPA_FLAG_IS_SET(b->flags, BUFFER_FLAG_ALLOCATED)) { + close(d[0].fd); + } + d[0].type = SPA_ID_INVALID; + } + + freeBuffers(impl, port); + port->n_buffers = 0; + port->ring = SPA_RINGBUFFER_INIT(); + + return 0; +} + +struct format_info { + PixelFormat pix; + uint32_t format; + uint32_t media_type; + uint32_t media_subtype; +}; + +#define MAKE_FMT(pix,fmt,mt,mst) { pix, SPA_VIDEO_FORMAT_ ##fmt, SPA_MEDIA_TYPE_ ##mt, SPA_MEDIA_SUBTYPE_ ##mst } +static const struct format_info format_info[] = { + /* RGB formats */ + MAKE_FMT(formats::RGB565, RGB16, video, raw), + MAKE_FMT(formats::RGB565_BE, RGB16, video, raw), + MAKE_FMT(formats::RGB888, BGR, video, raw), + MAKE_FMT(formats::BGR888, RGB, video, raw), + MAKE_FMT(formats::XRGB8888, BGRx, video, raw), + MAKE_FMT(formats::XBGR8888, RGBx, video, raw), + MAKE_FMT(formats::RGBX8888, xBGR, video, raw), + MAKE_FMT(formats::BGRX8888, xRGB, video, raw), + MAKE_FMT(formats::ARGB8888, BGRA, video, raw), + MAKE_FMT(formats::ABGR8888, RGBA, video, raw), + MAKE_FMT(formats::RGBA8888, ABGR, video, raw), + MAKE_FMT(formats::BGRA8888, ARGB, video, raw), + + MAKE_FMT(formats::YUYV, YUY2, video, raw), + MAKE_FMT(formats::YVYU, YVYU, video, raw), + MAKE_FMT(formats::UYVY, UYVY, video, raw), + MAKE_FMT(formats::VYUY, VYUY, video, raw), + + MAKE_FMT(formats::NV12, NV12, video, raw), + MAKE_FMT(formats::NV21, NV21, video, raw), + MAKE_FMT(formats::NV16, NV16, video, raw), + MAKE_FMT(formats::NV61, NV61, video, raw), + MAKE_FMT(formats::NV24, NV24, video, raw), + + MAKE_FMT(formats::YUV420, I420, video, raw), + MAKE_FMT(formats::YVU420, YV12, video, raw), + MAKE_FMT(formats::YUV422, Y42B, video, raw), + + MAKE_FMT(formats::MJPEG, ENCODED, video, mjpg), +#undef MAKE_FMT +}; + +static const struct format_info *video_format_to_info(const PixelFormat &pix) { + size_t i; + + for (i = 0; i < SPA_N_ELEMENTS(format_info); i++) { + if (format_info[i].pix == pix) + return &format_info[i]; + } + return NULL; +} + +static const struct format_info *find_format_info_by_media_type(uint32_t type, + uint32_t subtype, uint32_t format, int startidx) +{ + size_t i; + + for (i = startidx; i < SPA_N_ELEMENTS(format_info); i++) { + if ((format_info[i].media_type == type) && + (format_info[i].media_subtype == subtype) && + (format == 0 || format_info[i].format == format)) + return &format_info[i]; + } + return NULL; +} + +static int score_size(Size &a, Size &b) +{ + int x, y; + x = (int)a.width - (int)b.width; + y = (int)a.height - (int)b.height; + return x * x + y * y; +} + +static void +parse_colorimetry(const ColorSpace& colorspace, + struct spa_video_colorimetry *colorimetry) +{ + switch (colorspace.range) { + case ColorSpace::Range::Full: + colorimetry->range = SPA_VIDEO_COLOR_RANGE_0_255; + break; + case ColorSpace::Range::Limited: + colorimetry->range = SPA_VIDEO_COLOR_RANGE_16_235; + break; + } + + switch (colorspace.ycbcrEncoding) { + case ColorSpace::YcbcrEncoding::None: + colorimetry->matrix = SPA_VIDEO_COLOR_MATRIX_RGB; + break; + case ColorSpace::YcbcrEncoding::Rec601: + colorimetry->matrix = SPA_VIDEO_COLOR_MATRIX_BT601; + break; + case ColorSpace::YcbcrEncoding::Rec709: + colorimetry->matrix = SPA_VIDEO_COLOR_MATRIX_BT709; + break; + case ColorSpace::YcbcrEncoding::Rec2020: + colorimetry->matrix = SPA_VIDEO_COLOR_MATRIX_BT2020; + break; + } + + switch (colorspace.transferFunction) { + case ColorSpace::TransferFunction::Linear: + colorimetry->transfer = SPA_VIDEO_TRANSFER_UNKNOWN; + break; + case ColorSpace::TransferFunction::Srgb: + colorimetry->transfer = SPA_VIDEO_TRANSFER_SRGB; + break; + case ColorSpace::TransferFunction::Rec709: + colorimetry->transfer = SPA_VIDEO_TRANSFER_BT709; + break; + } + + switch (colorspace.primaries) { + case ColorSpace::Primaries::Raw: + colorimetry->primaries = SPA_VIDEO_COLOR_PRIMARIES_UNKNOWN; + break; + case ColorSpace::Primaries::Smpte170m: + colorimetry->primaries = SPA_VIDEO_COLOR_PRIMARIES_SMPTE170M; + break; + case ColorSpace::Primaries::Rec709: + colorimetry->primaries = SPA_VIDEO_COLOR_PRIMARIES_BT709; + break; + case ColorSpace::Primaries::Rec2020: + colorimetry->primaries = SPA_VIDEO_COLOR_PRIMARIES_BT2020; + break; + } +} + +static int +spa_libcamera_enum_format(struct impl *impl, struct port *port, int seq, + uint32_t start, uint32_t num, const struct spa_pod *filter) +{ + int res; + const struct format_info *info; + uint8_t buffer[1024]; + struct spa_pod_builder b = { 0 }; + struct spa_pod_frame f[2]; + struct spa_result_node_params result; + struct spa_video_colorimetry colorimetry = {}; + struct spa_pod *fmt; + uint32_t i, count = 0, num_sizes; + PixelFormat format; + Size frameSize; + SizeRange sizeRange = SizeRange(); + + spa_libcamera_get_config(impl); + + const StreamConfiguration& streamConfig = impl->config->at(0); + const StreamFormats &formats = streamConfig.formats(); + + if (streamConfig.colorSpace) + parse_colorimetry(*streamConfig.colorSpace, &colorimetry); + + result.id = SPA_PARAM_EnumFormat; + result.next = start; + + if (result.next == 0) { + port->fmt_index = 0; + port->size_index = 0; + } +next: + result.index = result.next++; + +next_fmt: + if (port->fmt_index >= formats.pixelformats().size()) + goto enum_end; + + format = formats.pixelformats()[port->fmt_index]; + + spa_log_debug(impl->log, "format: %s", format.toString().c_str()); + + info = video_format_to_info(format); + if (info == NULL) { + spa_log_debug(impl->log, "unknown format"); + port->fmt_index++; + goto next_fmt; + } + + num_sizes = formats.sizes(format).size(); + if (num_sizes > 0 && port->size_index <= num_sizes) { + if (port->size_index == 0) { + Size wanted = Size(640, 480), test; + int score, best = INT_MAX; + for (i = 0; i < num_sizes; i++) { + test = formats.sizes(format)[i]; + score = score_size(wanted, test); + if (score < best) { + best = score; + frameSize = test; + } + } + } + else { + frameSize = formats.sizes(format)[port->size_index - 1]; + } + } else if (port->size_index < 1) { + sizeRange = formats.range(format); + if (sizeRange.hStep == 0 || sizeRange.vStep == 0) { + port->size_index = 0; + port->fmt_index++; + goto next_fmt; + } + } else { + port->size_index = 0; + port->fmt_index++; + goto next_fmt; + } + port->size_index++; + + spa_pod_builder_init(&b, buffer, sizeof(buffer)); + spa_pod_builder_push_object(&b, &f[0], SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat); + spa_pod_builder_add(&b, + SPA_FORMAT_mediaType, SPA_POD_Id(info->media_type), + SPA_FORMAT_mediaSubtype, SPA_POD_Id(info->media_subtype), + 0); + + if (info->media_subtype == SPA_MEDIA_SUBTYPE_raw) { + spa_pod_builder_prop(&b, SPA_FORMAT_VIDEO_format, 0); + spa_pod_builder_id(&b, info->format); + } + if (info->pix.modifier()) { + spa_pod_builder_prop(&b, SPA_FORMAT_VIDEO_modifier, 0); + spa_pod_builder_long(&b, info->pix.modifier()); + } + spa_pod_builder_prop(&b, SPA_FORMAT_VIDEO_size, 0); + + if (sizeRange.hStep != 0 && sizeRange.vStep != 0) { + spa_pod_builder_push_choice(&b, &f[1], SPA_CHOICE_Step, 0); + spa_pod_builder_frame(&b, &f[1]); + spa_pod_builder_rectangle(&b, + sizeRange.min.width, + sizeRange.min.height); + spa_pod_builder_rectangle(&b, + sizeRange.min.width, + sizeRange.min.height); + spa_pod_builder_rectangle(&b, + sizeRange.max.width, + sizeRange.max.height); + spa_pod_builder_rectangle(&b, + sizeRange.hStep, + sizeRange.vStep); + spa_pod_builder_pop(&b, &f[1]); + + } else { + spa_pod_builder_rectangle(&b, frameSize.width, frameSize.height); + } + + if (streamConfig.colorSpace) { + spa_pod_builder_add(&b, + SPA_FORMAT_VIDEO_colorRange, + SPA_POD_Id(colorimetry.range), + SPA_FORMAT_VIDEO_colorMatrix, + SPA_POD_Id(colorimetry.matrix), + SPA_FORMAT_VIDEO_transferFunction, + SPA_POD_Id(colorimetry.transfer), + SPA_FORMAT_VIDEO_colorPrimaries, + SPA_POD_Id(colorimetry.primaries), 0); + } + + fmt = (struct spa_pod*) spa_pod_builder_pop(&b, &f[0]); + + if (spa_pod_filter(&b, &result.param, fmt, filter) < 0) + goto next; + + spa_node_emit_result(&impl->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result); + + if (++count != num) + goto next; + + enum_end: + res = 0; + return res; +} + +static int spa_libcamera_set_format(struct impl *impl, struct port *port, + struct spa_video_info *format, bool try_only) +{ + const struct format_info *info = NULL; + uint32_t video_format; + struct spa_rectangle *size = NULL; + struct spa_fraction *framerate = NULL; + CameraConfiguration::Status validation; + int res; + + switch (format->media_subtype) { + case SPA_MEDIA_SUBTYPE_raw: + video_format = format->info.raw.format; + size = &format->info.raw.size; + framerate = &format->info.raw.framerate; + break; + case SPA_MEDIA_SUBTYPE_mjpg: + case SPA_MEDIA_SUBTYPE_jpeg: + video_format = SPA_VIDEO_FORMAT_ENCODED; + size = &format->info.mjpg.size; + framerate = &format->info.mjpg.framerate; + break; + case SPA_MEDIA_SUBTYPE_h264: + video_format = SPA_VIDEO_FORMAT_ENCODED; + size = &format->info.h264.size; + framerate = &format->info.h264.framerate; + break; + default: + video_format = SPA_VIDEO_FORMAT_ENCODED; + break; + } + + info = find_format_info_by_media_type(format->media_type, + format->media_subtype, video_format, 0); + if (info == NULL || size == NULL || framerate == NULL) { + spa_log_error(impl->log, "unknown media type %d %d %d", format->media_type, + format->media_subtype, video_format); + return -EINVAL; + } + StreamConfiguration& streamConfig = impl->config->at(0); + + streamConfig.pixelFormat = info->pix; + streamConfig.size.width = size->width; + streamConfig.size.height = size->height; + streamConfig.bufferCount = 8; + + validation = impl->config->validate(); + if (validation == CameraConfiguration::Invalid) + return -EINVAL; + + if (try_only) + return 0; + + if ((res = spa_libcamera_open(impl)) < 0) + return res; + + res = impl->camera->configure(impl->config.get()); + if (res != 0) + goto error; + + port->streamConfig = impl->config->at(0); + + if ((res = allocBuffers(impl, port, port->streamConfig.bufferCount)) < 0) + goto error; + + port->info.change_mask |= SPA_PORT_CHANGE_MASK_FLAGS | SPA_PORT_CHANGE_MASK_RATE; + port->info.flags = SPA_PORT_FLAG_CAN_ALLOC_BUFFERS | + SPA_PORT_FLAG_LIVE | + SPA_PORT_FLAG_PHYSICAL | + SPA_PORT_FLAG_TERMINAL; + port->info.rate = SPA_FRACTION(port->rate.num, port->rate.denom); + + return 0; +error: + spa_libcamera_close(impl); + return res; + +} + +static struct { + uint32_t id; + uint32_t spa_id; +} control_map[] = { + { libcamera::controls::BRIGHTNESS, SPA_PROP_brightness }, + { libcamera::controls::CONTRAST, SPA_PROP_contrast }, + { libcamera::controls::SATURATION, SPA_PROP_saturation }, + { libcamera::controls::EXPOSURE_TIME, SPA_PROP_exposure }, + { libcamera::controls::ANALOGUE_GAIN, SPA_PROP_gain }, + { libcamera::controls::SHARPNESS, SPA_PROP_sharpness }, +}; + +static uint32_t control_to_prop_id(struct impl *impl, uint32_t control_id) +{ + SPA_FOR_EACH_ELEMENT_VAR(control_map, c) { + if (c->id == control_id) + return c->spa_id; + } + return SPA_PROP_START_CUSTOM + control_id; +} + +static uint32_t prop_id_to_control(struct impl *impl, uint32_t prop_id) +{ + SPA_FOR_EACH_ELEMENT_VAR(control_map, c) { + if (c->spa_id == prop_id) + return c->id; + } + if (prop_id >= SPA_PROP_START_CUSTOM) + return prop_id - SPA_PROP_START_CUSTOM; + return SPA_ID_INVALID; +} + +static int +spa_libcamera_enum_controls(struct impl *impl, struct port *port, int seq, + uint32_t start, uint32_t offset, uint32_t num, + const struct spa_pod *filter) +{ + const ControlInfoMap &info = impl->camera->controls(); + uint8_t buffer[1024]; + struct spa_pod_builder b = { 0 }; + struct spa_pod_frame f[2]; + struct spa_result_node_params result; + struct spa_pod *ctrl; + uint32_t count = 0, skip, id; + int res; + const ControlId *ctrl_id; + ControlInfo ctrl_info; + + result.id = SPA_PARAM_PropInfo; + result.next = start; + + auto it = info.begin(); + for (skip = result.next - offset; skip; skip--) + it++; + + if (false) { +next: + it++; + } + result.index = result.next++; + if (it == info.end()) + goto enum_end; + + ctrl_id = it->first; + ctrl_info = it->second; + + id = control_to_prop_id(impl, ctrl_id->id()); + + spa_pod_builder_init(&b, buffer, sizeof(buffer)); + spa_pod_builder_push_object(&b, &f[0], SPA_TYPE_OBJECT_PropInfo, SPA_PARAM_PropInfo); + spa_pod_builder_add(&b, + SPA_PROP_INFO_id, SPA_POD_Id(id), + SPA_PROP_INFO_description, SPA_POD_String(ctrl_id->name().c_str()), + 0); + + switch (ctrl_id->type()) { + case ControlTypeBool: { + bool def; + if (ctrl_info.def().isNone()) + def = ctrl_info.min().get(); + else + def = ctrl_info.def().get(); + + spa_pod_builder_add(&b, + SPA_PROP_INFO_type, SPA_POD_CHOICE_Bool( + def), + 0); + } break; + case ControlTypeFloat: { + float min = ctrl_info.min().get(); + float max = ctrl_info.max().get(); + float def; + + if (ctrl_info.def().isNone()) + def = (min + max) / 2; + else + def = ctrl_info.def().get(); + + spa_pod_builder_add(&b, + SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Float( + def, min, max), + 0); + } break; + case ControlTypeInteger32: { + int32_t min = ctrl_info.min().get(); + int32_t max = ctrl_info.max().get(); + int32_t def; + + if (ctrl_info.def().isNone()) + def = (min + max) / 2; + else + def = ctrl_info.def().get(); + + spa_pod_builder_add(&b, + SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Int( + def, min, max), + 0); + } break; + default: + goto next; + } + + ctrl = (struct spa_pod*) spa_pod_builder_pop(&b, &f[0]); + + if (spa_pod_filter(&b, &result.param, ctrl, filter) < 0) + goto next; + + spa_node_emit_result(&impl->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result); + + if (++count != num) + goto next; + +enum_end: + res = 0; + return res; +} + +struct val { + uint32_t type; + float f_val; + int32_t i_val; + bool b_val; + uint32_t id; +}; + +static int do_update_ctrls(struct spa_loop *loop, + bool async, + uint32_t seq, + const void *data, + size_t size, + void *user_data) +{ + struct impl *impl = (struct impl *)user_data; + const struct val *d = (const struct val *)data; + switch (d->type) { + case ControlTypeBool: + impl->ctrls.set(d->id, d->b_val); + break; + case ControlTypeFloat: + impl->ctrls.set(d->id, d->f_val); + break; + case ControlTypeInteger32: + impl->ctrls.set(d->id, (int32_t)d->i_val); + break; + default: + break; + } + return 0; +} + +static int +spa_libcamera_set_control(struct impl *impl, const struct spa_pod_prop *prop) +{ + const ControlInfoMap &info = impl->camera->controls(); + const ControlId *ctrl_id; + int res; + struct val d; + uint32_t control_id; + + control_id = prop_id_to_control(impl, prop->key); + if (control_id == SPA_ID_INVALID) + return -ENOENT; + + auto v = info.idmap().find(control_id); + if (v == info.idmap().end()) + return -ENOENT; + + ctrl_id = v->second; + + d.type = ctrl_id->type(); + d.id = ctrl_id->id(); + + switch (d.type) { + case ControlTypeBool: + if ((res = spa_pod_get_bool(&prop->value, &d.b_val)) < 0) + goto done; + break; + case ControlTypeFloat: + if ((res = spa_pod_get_float(&prop->value, &d.f_val)) < 0) + goto done; + break; + case ControlTypeInteger32: + if ((res = spa_pod_get_int(&prop->value, &d.i_val)) < 0) + goto done; + break; + default: + res = -EINVAL; + goto done; + } + spa_loop_invoke(impl->data_loop, do_update_ctrls, 0, &d, sizeof(d), true, impl); + res = 0; +done: + return res; +} + + +static void libcamera_on_fd_events(struct spa_source *source) +{ + struct impl *impl = (struct impl*) source->data; + struct spa_io_buffers *io; + struct port *port = &impl->out_ports[0]; + uint32_t index, buffer_id; + struct buffer *b; + uint64_t cnt; + + if (source->rmask & SPA_IO_ERR) { + spa_log_error(impl->log, "libcamera %p: error %08x", impl, source->rmask); + if (impl->source.loop) + spa_loop_remove_source(impl->data_loop, &impl->source); + return; + } + + if (!(source->rmask & SPA_IO_IN)) { + spa_log_warn(impl->log, "libcamera %p: spurious wakeup %d", impl, source->rmask); + return; + } + + if (spa_system_eventfd_read(impl->system, impl->source.fd, &cnt) < 0) { + spa_log_error(impl->log, "Failed to read on event fd"); + return; + } + + if (spa_ringbuffer_get_read_index(&port->ring, &index) < 1) { + spa_log_error(impl->log, "nothing is queued"); + return; + } + buffer_id = port->ring_ids[index & MASK_BUFFERS]; + spa_ringbuffer_read_update(&port->ring, index + 1); + + b = &port->buffers[buffer_id]; + spa_list_append(&port->queue, &b->link); + + io = port->io; + if (io == NULL) { + b = spa_list_first(&port->queue, struct buffer, link); + spa_list_remove(&b->link); + SPA_FLAG_SET(b->flags, BUFFER_FLAG_OUTSTANDING); + spa_libcamera_buffer_recycle(impl, port, b->id); + } else if (io->status != SPA_STATUS_HAVE_DATA) { + if (io->buffer_id < port->n_buffers) + spa_libcamera_buffer_recycle(impl, port, io->buffer_id); + + b = spa_list_first(&port->queue, struct buffer, link); + spa_list_remove(&b->link); + SPA_FLAG_SET(b->flags, BUFFER_FLAG_OUTSTANDING); + + io->buffer_id = b->id; + io->status = SPA_STATUS_HAVE_DATA; + spa_log_trace(impl->log, "libcamera %p: now queued %d", impl, b->id); + } + spa_node_call_ready(&impl->callbacks, SPA_STATUS_HAVE_DATA); +} + +static int spa_libcamera_use_buffers(struct impl *impl, struct port *port, + struct spa_buffer **buffers, uint32_t n_buffers) +{ + return -ENOTSUP; +} + +static const struct { + Orientation libcamera_orientation; /* clockwise rotation then horizontal mirroring */ + uint32_t spa_transform_value; /* horizontal mirroring then counter-clockwise rotation */ +} orientation_map[] = { + { Orientation::Rotate0, SPA_META_TRANSFORMATION_None }, + { Orientation::Rotate0Mirror, SPA_META_TRANSFORMATION_Flipped }, + { Orientation::Rotate90, SPA_META_TRANSFORMATION_270 }, + { Orientation::Rotate90Mirror, SPA_META_TRANSFORMATION_Flipped90 }, + { Orientation::Rotate180, SPA_META_TRANSFORMATION_180 }, + { Orientation::Rotate180Mirror, SPA_META_TRANSFORMATION_Flipped180 }, + { Orientation::Rotate270, SPA_META_TRANSFORMATION_90 }, + { Orientation::Rotate270Mirror, SPA_META_TRANSFORMATION_Flipped270 }, +}; + +static uint32_t libcamera_orientation_to_spa_transform_value(Orientation orientation) +{ + for (const auto& t : orientation_map) { + if (t.libcamera_orientation == orientation) + return t.spa_transform_value; + } + return SPA_META_TRANSFORMATION_None; +} + +static int +mmap_init(struct impl *impl, struct port *port, + struct spa_buffer **buffers, uint32_t n_buffers) +{ + unsigned int i, j; + struct spa_data *d; + Stream *stream = impl->config->at(0).stream(); + const std::vector> &bufs = + impl->allocator->buffers(stream); + + if (n_buffers > 0) { + if (bufs.size() != n_buffers) + return -EINVAL; + + d = buffers[0]->datas; + + if (d[0].type != SPA_ID_INVALID && + d[0].type & (1u << SPA_DATA_DmaBuf)) { + port->memtype = SPA_DATA_DmaBuf; + } else if (d[0].type != SPA_ID_INVALID && + d[0].type & (1u << SPA_DATA_MemFd)) { + port->memtype = SPA_DATA_MemFd; + } else if (d[0].type & (1u << SPA_DATA_MemPtr)) { + port->memtype = SPA_DATA_MemPtr; + } else { + spa_log_error(impl->log, "can't use buffers of type %d", d[0].type); + return -EINVAL; + } + } + + for (i = 0; i < n_buffers; i++) { + struct buffer *b; + + if (buffers[i]->n_datas < 1) { + spa_log_error(impl->log, "invalid buffer data"); + return -EINVAL; + } + + b = &port->buffers[i]; + b->id = i; + b->outbuf = buffers[i]; + b->flags = BUFFER_FLAG_OUTSTANDING; + b->h = (struct spa_meta_header*)spa_buffer_find_meta_data(buffers[i], SPA_META_Header, sizeof(*b->h)); + + b->videotransform = (struct spa_meta_videotransform*)spa_buffer_find_meta_data( + buffers[i], SPA_META_VideoTransform, sizeof(*b->videotransform)); + if (b->videotransform) { + b->videotransform->transform = + libcamera_orientation_to_spa_transform_value(impl->config->orientation); + spa_log_debug(impl->log, "Setting videotransform for buffer %u to %u", + i, b->videotransform->transform); + + } + + d = buffers[i]->datas; + for(j = 0; j < buffers[i]->n_datas; ++j) { + d[j].type = port->memtype; + d[j].flags = SPA_DATA_FLAG_READABLE; + d[j].mapoffset = 0; + d[j].chunk->stride = port->streamConfig.stride; + d[j].chunk->flags = 0; + /* Update parameters according to the plane information */ + unsigned int numPlanes = bufs[i]->planes().size(); + if (buffers[i]->n_datas < numPlanes) { + if (j < buffers[i]->n_datas - 1) { + d[j].maxsize = bufs[i]->planes()[j].length; + d[j].chunk->offset = bufs[i]->planes()[j].offset; + d[j].chunk->size = bufs[i]->planes()[j].length; + } else { + d[j].chunk->offset = bufs[i]->planes()[j].offset; + for (uint8_t k = j; k < numPlanes; k++) { + d[j].maxsize += bufs[i]->planes()[k].length; + d[j].chunk->size += bufs[i]->planes()[k].length; + } + } + } else if (buffers[i]->n_datas == numPlanes) { + d[j].maxsize = bufs[i]->planes()[j].length; + d[j].chunk->offset = bufs[i]->planes()[j].offset; + d[j].chunk->size = bufs[i]->planes()[j].length; + } else { + spa_log_warn(impl->log, "buffer index: i: %d, data member " + "numbers: %d is greater than plane number: %d", + i, buffers[i]->n_datas, numPlanes); + d[j].maxsize = port->streamConfig.frameSize; + d[j].chunk->offset = 0; + d[j].chunk->size = port->streamConfig.frameSize; + } + + if (port->memtype == SPA_DATA_DmaBuf || + port->memtype == SPA_DATA_MemFd) { + d[j].flags |= SPA_DATA_FLAG_MAPPABLE; + d[j].fd = bufs[i]->planes()[j].fd.get(); + spa_log_debug(impl->log, "Got fd = %" PRId64 " for buffer: #%d", d[j].fd, i); + d[j].data = NULL; + SPA_FLAG_SET(b->flags, BUFFER_FLAG_ALLOCATED); + } + else if(port->memtype == SPA_DATA_MemPtr) { + d[j].fd = -1; + d[j].data = mmap(NULL, + d[j].maxsize + d[j].mapoffset, + PROT_READ, MAP_SHARED, + bufs[i]->planes()[j].fd.get(), + 0); + if (d[j].data == MAP_FAILED) { + spa_log_error(impl->log, "mmap: %m"); + continue; + } + b->ptr = d[j].data; + SPA_FLAG_SET(b->flags, BUFFER_FLAG_MAPPED); + spa_log_debug(impl->log, "mmap ptr:%p", d[j].data); + } else { + spa_log_error(impl->log, "invalid buffer type"); + return -EIO; + } + } + spa_libcamera_buffer_recycle(impl, port, i); + } + port->n_buffers = n_buffers; + spa_log_debug(impl->log, "we have %d buffers", n_buffers); + + return 0; +} + +static int +spa_libcamera_alloc_buffers(struct impl *impl, struct port *port, + struct spa_buffer **buffers, + uint32_t n_buffers) +{ + int res; + + if (port->n_buffers > 0) + return -EIO; + + if ((res = mmap_init(impl, port, buffers, n_buffers)) < 0) + return res; + + return 0; +} + + +void impl::requestComplete(libcamera::Request *request) +{ + struct impl *impl = this; + struct port *port = &impl->out_ports[0]; + Stream *stream = port->streamConfig.stream(); + uint32_t index, buffer_id; + struct buffer *b; + + spa_log_debug(impl->log, "request complete"); + + buffer_id = request->cookie(); + b = &port->buffers[buffer_id]; + + if ((request->status() == Request::RequestCancelled)) { + spa_log_debug(impl->log, "Request was cancelled"); + request->reuse(); + SPA_FLAG_SET(b->flags, BUFFER_FLAG_OUTSTANDING); + spa_libcamera_buffer_recycle(impl, port, b->id); + return; + } + FrameBuffer *buffer = request->findBuffer(stream); + if (buffer == nullptr) { + spa_log_warn(impl->log, "unknown buffer"); + return; + } + const FrameMetadata &fmd = buffer->metadata(); + + if (impl->clock) { + double target = (double)port->info.rate.num / port->info.rate.denom; + double corr; + + if (impl->dll.bw == 0.0) { + spa_dll_set_bw(&impl->dll, SPA_DLL_BW_MAX, port->info.rate.denom, port->info.rate.denom); + impl->clock->next_nsec = fmd.timestamp; + corr = 1.0; + } else { + double diff = ((double)impl->clock->next_nsec - (double)fmd.timestamp) / SPA_NSEC_PER_SEC; + double error = port->info.rate.denom * (diff - target); + corr = spa_dll_update(&impl->dll, SPA_CLAMPD(error, -128., 128.)); + } + /* FIXME, we should follow the driver clock and target_ values. + * for now we ignore and use our own. */ + impl->clock->target_rate = port->rate; + impl->clock->target_duration = 1; + + impl->clock->nsec = fmd.timestamp; + impl->clock->rate = port->rate; + impl->clock->position = fmd.sequence; + impl->clock->duration = 1; + impl->clock->delay = 0; + impl->clock->rate_diff = corr; + impl->clock->next_nsec += (uint64_t) (target * SPA_NSEC_PER_SEC * corr); + } + if (b->h) { + b->h->flags = 0; + b->h->offset = 0; + b->h->seq = fmd.sequence; + b->h->pts = fmd.timestamp; + b->h->dts_offset = 0; + } + request->reuse(); + + spa_ringbuffer_get_write_index(&port->ring, &index); + port->ring_ids[index & MASK_BUFFERS] = buffer_id; + spa_ringbuffer_write_update(&port->ring, index + 1); + + if (spa_system_eventfd_write(impl->system, impl->source.fd, 1) < 0) + spa_log_error(impl->log, "Failed to write on event fd"); + +} + +static int spa_libcamera_stream_on(struct impl *impl) +{ + struct port *port = &impl->out_ports[0]; + int res; + + if (!port->current_format) { + spa_log_error(impl->log, "Exiting %s with -EIO", __FUNCTION__); + return -EIO; + } + + if (impl->active) + return 0; + + impl->camera->requestCompleted.connect(impl, &impl::requestComplete); + + spa_log_info(impl->log, "starting camera %s", impl->device_id.c_str()); + if ((res = impl->camera->start(&impl->initial_controls)) < 0) + goto error; + + for (Request *req : impl->pendingRequests) { + if ((res = impl->camera->queueRequest(req)) < 0) + goto error_stop; + } + impl->pendingRequests.clear(); + + impl->dll.bw = 0.0; + + impl->source.func = libcamera_on_fd_events; + impl->source.data = impl; + impl->source.fd = spa_system_eventfd_create(impl->system, SPA_FD_CLOEXEC | SPA_FD_NONBLOCK); + impl->source.mask = SPA_IO_IN | SPA_IO_ERR; + impl->source.rmask = 0; + if (impl->source.fd < 0) { + spa_log_error(impl->log, "Failed to create eventfd: %s", spa_strerror(impl->source.fd)); + res = impl->source.fd; + goto error_stop; + } + spa_loop_add_source(impl->data_loop, &impl->source); + + impl->active = true; + + return 0; + +error_stop: + impl->camera->stop(); +error: + impl->camera->requestCompleted.disconnect(impl, &impl::requestComplete); + return res == -EACCES ? -EBUSY : res; +} + +static int do_remove_source(struct spa_loop *loop, + bool async, + uint32_t seq, + const void *data, + size_t size, + void *user_data) +{ + struct impl *impl = (struct impl *)user_data; + if (impl->source.loop) + spa_loop_remove_source(loop, &impl->source); + return 0; +} + +static int spa_libcamera_stream_off(struct impl *impl) +{ + struct port *port = &impl->out_ports[0]; + int res; + + if (!impl->active) { + for (std::unique_ptr &req : impl->requestPool) + req->reuse(); + return 0; + } + + impl->active = false; + spa_log_info(impl->log, "stopping camera %s", impl->device_id.c_str()); + impl->pendingRequests.clear(); + + if ((res = impl->camera->stop()) < 0) { + spa_log_warn(impl->log, "error stopping camera %s: %s", + impl->device_id.c_str(), spa_strerror(res)); + } + + impl->camera->requestCompleted.disconnect(impl, &impl::requestComplete); + + spa_loop_invoke(impl->data_loop, do_remove_source, 0, NULL, 0, true, impl); + if (impl->source.fd >= 0) { + spa_system_close(impl->system, impl->source.fd); + impl->source.fd = -1; + } + + spa_list_init(&port->queue); + + return 0; +} static int port_get_format(struct impl *impl, struct port *port, uint32_t index, diff --git a/spa/plugins/libcamera/libcamera-utils.cpp b/spa/plugins/libcamera/libcamera-utils.cpp deleted file mode 100644 index 4eb66e16e..000000000 --- a/spa/plugins/libcamera/libcamera-utils.cpp +++ /dev/null @@ -1,1167 +0,0 @@ -/* Spa */ -/* SPDX-FileCopyrightText: Copyright © 2020 Collabora Ltd. */ -/* @author Raghavendra Rao Sidlagatta */ -/* SPDX-FileCopyrightText: Copyright © 2021 Wim Taymans */ -/* SPDX-License-Identifier: MIT */ - -#include -#include -#include -#include -#include - -#include -#include - -static void setup_initial_controls(const ControlInfoMap& ctrl_infos, ControlList& ctrls) -{ - /* Libcamera recommends cameras default to manual focus mode, but we don't - * expose any focus controls. So, specifically enable autofocus on - * cameras which support it. */ - auto af_it = ctrl_infos.find(libcamera::controls::AF_MODE); - if (af_it != ctrl_infos.end()) { - const ControlInfo &ctrl_info = af_it->second; - auto is_af_continuous = [](const ControlValue &value) { - return value.get() == libcamera::controls::AfModeContinuous; - }; - if (std::any_of(ctrl_info.values().begin(), - ctrl_info.values().end(), is_af_continuous)) { - ctrls.set(libcamera::controls::AF_MODE, - libcamera::controls::AfModeContinuous); - } - } - - auto ae_it = ctrl_infos.find(libcamera::controls::AE_ENABLE); - if (ae_it != ctrl_infos.end()) { - ctrls.set(libcamera::controls::AE_ENABLE, true); - } -} - -int spa_libcamera_open(struct impl *impl) -{ - if (impl->acquired) - return 0; - - spa_log_info(impl->log, "open camera %s", impl->device_id.c_str()); - impl->camera->acquire(); - - impl->allocator = new FrameBufferAllocator(impl->camera); - - const ControlInfoMap &controls = impl->camera->controls(); - setup_initial_controls(controls, impl->initial_controls); - - impl->acquired = true; - return 0; -} - -int spa_libcamera_close(struct impl *impl) -{ - struct port *port = &impl->out_ports[0]; - if (!impl->acquired) - return 0; - if (impl->active || port->current_format) - return 0; - - spa_log_info(impl->log, "close camera %s", impl->device_id.c_str()); - delete impl->allocator; - impl->allocator = nullptr; - - impl->camera->release(); - - impl->acquired = false; - return 0; -} - -static void spa_libcamera_get_config(struct impl *impl) -{ - if (impl->config) - return; - - impl->config = impl->camera->generateConfiguration({ StreamRole::VideoRecording }); -} - -static int spa_libcamera_buffer_recycle(struct impl *impl, struct port *port, uint32_t buffer_id) -{ - struct buffer *b = &port->buffers[buffer_id]; - int res; - - if (!SPA_FLAG_IS_SET(b->flags, BUFFER_FLAG_OUTSTANDING)) - return 0; - - SPA_FLAG_CLEAR(b->flags, BUFFER_FLAG_OUTSTANDING); - - if (buffer_id >= impl->requestPool.size()) { - spa_log_warn(impl->log, "invalid buffer_id %u >= %zu", - buffer_id, impl->requestPool.size()); - return -EINVAL; - } - Request *request = impl->requestPool[buffer_id].get(); - Stream *stream = port->streamConfig.stream(); - FrameBuffer *buffer = impl->allocator->buffers(stream)[buffer_id].get(); - if ((res = request->addBuffer(stream, buffer)) < 0) { - spa_log_warn(impl->log, "can't add buffer %u for request: %s", - buffer_id, spa_strerror(res)); - return -ENOMEM; - } - if (!impl->active) { - impl->pendingRequests.push_back(request); - return 0; - } else { - request->controls().merge(impl->ctrls); - impl->ctrls.clear(); - if ((res = impl->camera->queueRequest(request)) < 0) { - spa_log_warn(impl->log, "can't queue buffer %u: %s", - buffer_id, spa_strerror(res)); - return res == -EACCES ? -EBUSY : res; - } - } - return 0; -} - -static int allocBuffers(struct impl *impl, struct port *port, unsigned int count) -{ - int res; - - if ((res = impl->allocator->allocate(port->streamConfig.stream())) < 0) - return res; - - for (unsigned int i = 0; i < count; i++) { - std::unique_ptr request = impl->camera->createRequest(i); - if (!request) { - impl->requestPool.clear(); - return -ENOMEM; - } - impl->requestPool.push_back(std::move(request)); - } - - /* Some devices require data for each output video frame to be - * placed in discontiguous memory buffers. In such cases, one - * video frame has to be addressed using more than one memory. - * address. Therefore, need calculate the number of discontiguous - * memory and allocate the specified amount of memory */ - Stream *stream = impl->config->at(0).stream(); - const std::vector> &bufs = - impl->allocator->buffers(stream); - const std::vector &planes = bufs[0]->planes(); - int fd = -1; - uint32_t buffers_blocks = 0; - - for (const FrameBuffer::Plane &plane : planes) { - const int current_fd = plane.fd.get(); - if (current_fd >= 0 && current_fd != fd) { - buffers_blocks += 1; - fd = current_fd; - } - } - - if (buffers_blocks > 0) { - port->buffers_blocks = buffers_blocks; - } - return res; -} - -static void freeBuffers(struct impl *impl, struct port *port) -{ - impl->pendingRequests.clear(); - impl->requestPool.clear(); - impl->allocator->free(port->streamConfig.stream()); -} - -static int spa_libcamera_clear_buffers(struct impl *impl, struct port *port) -{ - uint32_t i; - - if (port->n_buffers == 0) - return 0; - - for (i = 0; i < port->n_buffers; i++) { - struct buffer *b; - struct spa_data *d; - - b = &port->buffers[i]; - d = b->outbuf->datas; - - if (SPA_FLAG_IS_SET(b->flags, BUFFER_FLAG_OUTSTANDING)) { - spa_log_debug(impl->log, "queueing outstanding buffer %p", b); - spa_libcamera_buffer_recycle(impl, port, i); - } - if (SPA_FLAG_IS_SET(b->flags, BUFFER_FLAG_MAPPED)) { - munmap(SPA_PTROFF(b->ptr, -d[0].mapoffset, void), - d[0].maxsize - d[0].mapoffset); - } - if (SPA_FLAG_IS_SET(b->flags, BUFFER_FLAG_ALLOCATED)) { - close(d[0].fd); - } - d[0].type = SPA_ID_INVALID; - } - - freeBuffers(impl, port); - port->n_buffers = 0; - port->ring = SPA_RINGBUFFER_INIT(); - - return 0; -} - -struct format_info { - PixelFormat pix; - uint32_t format; - uint32_t media_type; - uint32_t media_subtype; -}; - -#define MAKE_FMT(pix,fmt,mt,mst) { pix, SPA_VIDEO_FORMAT_ ##fmt, SPA_MEDIA_TYPE_ ##mt, SPA_MEDIA_SUBTYPE_ ##mst } -static const struct format_info format_info[] = { - /* RGB formats */ - MAKE_FMT(formats::RGB565, RGB16, video, raw), - MAKE_FMT(formats::RGB565_BE, RGB16, video, raw), - MAKE_FMT(formats::RGB888, BGR, video, raw), - MAKE_FMT(formats::BGR888, RGB, video, raw), - MAKE_FMT(formats::XRGB8888, BGRx, video, raw), - MAKE_FMT(formats::XBGR8888, RGBx, video, raw), - MAKE_FMT(formats::RGBX8888, xBGR, video, raw), - MAKE_FMT(formats::BGRX8888, xRGB, video, raw), - MAKE_FMT(formats::ARGB8888, BGRA, video, raw), - MAKE_FMT(formats::ABGR8888, RGBA, video, raw), - MAKE_FMT(formats::RGBA8888, ABGR, video, raw), - MAKE_FMT(formats::BGRA8888, ARGB, video, raw), - - MAKE_FMT(formats::YUYV, YUY2, video, raw), - MAKE_FMT(formats::YVYU, YVYU, video, raw), - MAKE_FMT(formats::UYVY, UYVY, video, raw), - MAKE_FMT(formats::VYUY, VYUY, video, raw), - - MAKE_FMT(formats::NV12, NV12, video, raw), - MAKE_FMT(formats::NV21, NV21, video, raw), - MAKE_FMT(formats::NV16, NV16, video, raw), - MAKE_FMT(formats::NV61, NV61, video, raw), - MAKE_FMT(formats::NV24, NV24, video, raw), - - MAKE_FMT(formats::YUV420, I420, video, raw), - MAKE_FMT(formats::YVU420, YV12, video, raw), - MAKE_FMT(formats::YUV422, Y42B, video, raw), - - MAKE_FMT(formats::MJPEG, ENCODED, video, mjpg), -#undef MAKE_FMT -}; - -static const struct format_info *video_format_to_info(const PixelFormat &pix) { - size_t i; - - for (i = 0; i < SPA_N_ELEMENTS(format_info); i++) { - if (format_info[i].pix == pix) - return &format_info[i]; - } - return NULL; -} - -static const struct format_info *find_format_info_by_media_type(uint32_t type, - uint32_t subtype, uint32_t format, int startidx) -{ - size_t i; - - for (i = startidx; i < SPA_N_ELEMENTS(format_info); i++) { - if ((format_info[i].media_type == type) && - (format_info[i].media_subtype == subtype) && - (format == 0 || format_info[i].format == format)) - return &format_info[i]; - } - return NULL; -} - -static int score_size(Size &a, Size &b) -{ - int x, y; - x = (int)a.width - (int)b.width; - y = (int)a.height - (int)b.height; - return x * x + y * y; -} - -static void -parse_colorimetry(const ColorSpace& colorspace, - struct spa_video_colorimetry *colorimetry) -{ - switch (colorspace.range) { - case ColorSpace::Range::Full: - colorimetry->range = SPA_VIDEO_COLOR_RANGE_0_255; - break; - case ColorSpace::Range::Limited: - colorimetry->range = SPA_VIDEO_COLOR_RANGE_16_235; - break; - } - - switch (colorspace.ycbcrEncoding) { - case ColorSpace::YcbcrEncoding::None: - colorimetry->matrix = SPA_VIDEO_COLOR_MATRIX_RGB; - break; - case ColorSpace::YcbcrEncoding::Rec601: - colorimetry->matrix = SPA_VIDEO_COLOR_MATRIX_BT601; - break; - case ColorSpace::YcbcrEncoding::Rec709: - colorimetry->matrix = SPA_VIDEO_COLOR_MATRIX_BT709; - break; - case ColorSpace::YcbcrEncoding::Rec2020: - colorimetry->matrix = SPA_VIDEO_COLOR_MATRIX_BT2020; - break; - } - - switch (colorspace.transferFunction) { - case ColorSpace::TransferFunction::Linear: - colorimetry->transfer = SPA_VIDEO_TRANSFER_UNKNOWN; - break; - case ColorSpace::TransferFunction::Srgb: - colorimetry->transfer = SPA_VIDEO_TRANSFER_SRGB; - break; - case ColorSpace::TransferFunction::Rec709: - colorimetry->transfer = SPA_VIDEO_TRANSFER_BT709; - break; - } - - switch (colorspace.primaries) { - case ColorSpace::Primaries::Raw: - colorimetry->primaries = SPA_VIDEO_COLOR_PRIMARIES_UNKNOWN; - break; - case ColorSpace::Primaries::Smpte170m: - colorimetry->primaries = SPA_VIDEO_COLOR_PRIMARIES_SMPTE170M; - break; - case ColorSpace::Primaries::Rec709: - colorimetry->primaries = SPA_VIDEO_COLOR_PRIMARIES_BT709; - break; - case ColorSpace::Primaries::Rec2020: - colorimetry->primaries = SPA_VIDEO_COLOR_PRIMARIES_BT2020; - break; - } -} - -static int -spa_libcamera_enum_format(struct impl *impl, struct port *port, int seq, - uint32_t start, uint32_t num, const struct spa_pod *filter) -{ - int res; - const struct format_info *info; - uint8_t buffer[1024]; - struct spa_pod_builder b = { 0 }; - struct spa_pod_frame f[2]; - struct spa_result_node_params result; - struct spa_video_colorimetry colorimetry = {}; - struct spa_pod *fmt; - uint32_t i, count = 0, num_sizes; - PixelFormat format; - Size frameSize; - SizeRange sizeRange = SizeRange(); - - spa_libcamera_get_config(impl); - - const StreamConfiguration& streamConfig = impl->config->at(0); - const StreamFormats &formats = streamConfig.formats(); - - if (streamConfig.colorSpace) - parse_colorimetry(*streamConfig.colorSpace, &colorimetry); - - result.id = SPA_PARAM_EnumFormat; - result.next = start; - - if (result.next == 0) { - port->fmt_index = 0; - port->size_index = 0; - } -next: - result.index = result.next++; - -next_fmt: - if (port->fmt_index >= formats.pixelformats().size()) - goto enum_end; - - format = formats.pixelformats()[port->fmt_index]; - - spa_log_debug(impl->log, "format: %s", format.toString().c_str()); - - info = video_format_to_info(format); - if (info == NULL) { - spa_log_debug(impl->log, "unknown format"); - port->fmt_index++; - goto next_fmt; - } - - num_sizes = formats.sizes(format).size(); - if (num_sizes > 0 && port->size_index <= num_sizes) { - if (port->size_index == 0) { - Size wanted = Size(640, 480), test; - int score, best = INT_MAX; - for (i = 0; i < num_sizes; i++) { - test = formats.sizes(format)[i]; - score = score_size(wanted, test); - if (score < best) { - best = score; - frameSize = test; - } - } - } - else { - frameSize = formats.sizes(format)[port->size_index - 1]; - } - } else if (port->size_index < 1) { - sizeRange = formats.range(format); - if (sizeRange.hStep == 0 || sizeRange.vStep == 0) { - port->size_index = 0; - port->fmt_index++; - goto next_fmt; - } - } else { - port->size_index = 0; - port->fmt_index++; - goto next_fmt; - } - port->size_index++; - - spa_pod_builder_init(&b, buffer, sizeof(buffer)); - spa_pod_builder_push_object(&b, &f[0], SPA_TYPE_OBJECT_Format, SPA_PARAM_EnumFormat); - spa_pod_builder_add(&b, - SPA_FORMAT_mediaType, SPA_POD_Id(info->media_type), - SPA_FORMAT_mediaSubtype, SPA_POD_Id(info->media_subtype), - 0); - - if (info->media_subtype == SPA_MEDIA_SUBTYPE_raw) { - spa_pod_builder_prop(&b, SPA_FORMAT_VIDEO_format, 0); - spa_pod_builder_id(&b, info->format); - } - if (info->pix.modifier()) { - spa_pod_builder_prop(&b, SPA_FORMAT_VIDEO_modifier, 0); - spa_pod_builder_long(&b, info->pix.modifier()); - } - spa_pod_builder_prop(&b, SPA_FORMAT_VIDEO_size, 0); - - if (sizeRange.hStep != 0 && sizeRange.vStep != 0) { - spa_pod_builder_push_choice(&b, &f[1], SPA_CHOICE_Step, 0); - spa_pod_builder_frame(&b, &f[1]); - spa_pod_builder_rectangle(&b, - sizeRange.min.width, - sizeRange.min.height); - spa_pod_builder_rectangle(&b, - sizeRange.min.width, - sizeRange.min.height); - spa_pod_builder_rectangle(&b, - sizeRange.max.width, - sizeRange.max.height); - spa_pod_builder_rectangle(&b, - sizeRange.hStep, - sizeRange.vStep); - spa_pod_builder_pop(&b, &f[1]); - - } else { - spa_pod_builder_rectangle(&b, frameSize.width, frameSize.height); - } - - if (streamConfig.colorSpace) { - spa_pod_builder_add(&b, - SPA_FORMAT_VIDEO_colorRange, - SPA_POD_Id(colorimetry.range), - SPA_FORMAT_VIDEO_colorMatrix, - SPA_POD_Id(colorimetry.matrix), - SPA_FORMAT_VIDEO_transferFunction, - SPA_POD_Id(colorimetry.transfer), - SPA_FORMAT_VIDEO_colorPrimaries, - SPA_POD_Id(colorimetry.primaries), 0); - } - - fmt = (struct spa_pod*) spa_pod_builder_pop(&b, &f[0]); - - if (spa_pod_filter(&b, &result.param, fmt, filter) < 0) - goto next; - - spa_node_emit_result(&impl->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result); - - if (++count != num) - goto next; - - enum_end: - res = 0; - return res; -} - -static int spa_libcamera_set_format(struct impl *impl, struct port *port, - struct spa_video_info *format, bool try_only) -{ - const struct format_info *info = NULL; - uint32_t video_format; - struct spa_rectangle *size = NULL; - struct spa_fraction *framerate = NULL; - CameraConfiguration::Status validation; - int res; - - switch (format->media_subtype) { - case SPA_MEDIA_SUBTYPE_raw: - video_format = format->info.raw.format; - size = &format->info.raw.size; - framerate = &format->info.raw.framerate; - break; - case SPA_MEDIA_SUBTYPE_mjpg: - case SPA_MEDIA_SUBTYPE_jpeg: - video_format = SPA_VIDEO_FORMAT_ENCODED; - size = &format->info.mjpg.size; - framerate = &format->info.mjpg.framerate; - break; - case SPA_MEDIA_SUBTYPE_h264: - video_format = SPA_VIDEO_FORMAT_ENCODED; - size = &format->info.h264.size; - framerate = &format->info.h264.framerate; - break; - default: - video_format = SPA_VIDEO_FORMAT_ENCODED; - break; - } - - info = find_format_info_by_media_type(format->media_type, - format->media_subtype, video_format, 0); - if (info == NULL || size == NULL || framerate == NULL) { - spa_log_error(impl->log, "unknown media type %d %d %d", format->media_type, - format->media_subtype, video_format); - return -EINVAL; - } - StreamConfiguration& streamConfig = impl->config->at(0); - - streamConfig.pixelFormat = info->pix; - streamConfig.size.width = size->width; - streamConfig.size.height = size->height; - streamConfig.bufferCount = 8; - - validation = impl->config->validate(); - if (validation == CameraConfiguration::Invalid) - return -EINVAL; - - if (try_only) - return 0; - - if ((res = spa_libcamera_open(impl)) < 0) - return res; - - res = impl->camera->configure(impl->config.get()); - if (res != 0) - goto error; - - port->streamConfig = impl->config->at(0); - - if ((res = allocBuffers(impl, port, port->streamConfig.bufferCount)) < 0) - goto error; - - port->info.change_mask |= SPA_PORT_CHANGE_MASK_FLAGS | SPA_PORT_CHANGE_MASK_RATE; - port->info.flags = SPA_PORT_FLAG_CAN_ALLOC_BUFFERS | - SPA_PORT_FLAG_LIVE | - SPA_PORT_FLAG_PHYSICAL | - SPA_PORT_FLAG_TERMINAL; - port->info.rate = SPA_FRACTION(port->rate.num, port->rate.denom); - - return 0; -error: - spa_libcamera_close(impl); - return res; - -} - -static struct { - uint32_t id; - uint32_t spa_id; -} control_map[] = { - { libcamera::controls::BRIGHTNESS, SPA_PROP_brightness }, - { libcamera::controls::CONTRAST, SPA_PROP_contrast }, - { libcamera::controls::SATURATION, SPA_PROP_saturation }, - { libcamera::controls::EXPOSURE_TIME, SPA_PROP_exposure }, - { libcamera::controls::ANALOGUE_GAIN, SPA_PROP_gain }, - { libcamera::controls::SHARPNESS, SPA_PROP_sharpness }, -}; - -static uint32_t control_to_prop_id(struct impl *impl, uint32_t control_id) -{ - SPA_FOR_EACH_ELEMENT_VAR(control_map, c) { - if (c->id == control_id) - return c->spa_id; - } - return SPA_PROP_START_CUSTOM + control_id; -} - -static uint32_t prop_id_to_control(struct impl *impl, uint32_t prop_id) -{ - SPA_FOR_EACH_ELEMENT_VAR(control_map, c) { - if (c->spa_id == prop_id) - return c->id; - } - if (prop_id >= SPA_PROP_START_CUSTOM) - return prop_id - SPA_PROP_START_CUSTOM; - return SPA_ID_INVALID; -} - -static int -spa_libcamera_enum_controls(struct impl *impl, struct port *port, int seq, - uint32_t start, uint32_t offset, uint32_t num, - const struct spa_pod *filter) -{ - const ControlInfoMap &info = impl->camera->controls(); - uint8_t buffer[1024]; - struct spa_pod_builder b = { 0 }; - struct spa_pod_frame f[2]; - struct spa_result_node_params result; - struct spa_pod *ctrl; - uint32_t count = 0, skip, id; - int res; - const ControlId *ctrl_id; - ControlInfo ctrl_info; - - result.id = SPA_PARAM_PropInfo; - result.next = start; - - auto it = info.begin(); - for (skip = result.next - offset; skip; skip--) - it++; - - if (false) { -next: - it++; - } - result.index = result.next++; - if (it == info.end()) - goto enum_end; - - ctrl_id = it->first; - ctrl_info = it->second; - - id = control_to_prop_id(impl, ctrl_id->id()); - - spa_pod_builder_init(&b, buffer, sizeof(buffer)); - spa_pod_builder_push_object(&b, &f[0], SPA_TYPE_OBJECT_PropInfo, SPA_PARAM_PropInfo); - spa_pod_builder_add(&b, - SPA_PROP_INFO_id, SPA_POD_Id(id), - SPA_PROP_INFO_description, SPA_POD_String(ctrl_id->name().c_str()), - 0); - - switch (ctrl_id->type()) { - case ControlTypeBool: { - bool def; - if (ctrl_info.def().isNone()) - def = ctrl_info.min().get(); - else - def = ctrl_info.def().get(); - - spa_pod_builder_add(&b, - SPA_PROP_INFO_type, SPA_POD_CHOICE_Bool( - def), - 0); - } break; - case ControlTypeFloat: { - float min = ctrl_info.min().get(); - float max = ctrl_info.max().get(); - float def; - - if (ctrl_info.def().isNone()) - def = (min + max) / 2; - else - def = ctrl_info.def().get(); - - spa_pod_builder_add(&b, - SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Float( - def, min, max), - 0); - } break; - case ControlTypeInteger32: { - int32_t min = ctrl_info.min().get(); - int32_t max = ctrl_info.max().get(); - int32_t def; - - if (ctrl_info.def().isNone()) - def = (min + max) / 2; - else - def = ctrl_info.def().get(); - - spa_pod_builder_add(&b, - SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Int( - def, min, max), - 0); - } break; - default: - goto next; - } - - ctrl = (struct spa_pod*) spa_pod_builder_pop(&b, &f[0]); - - if (spa_pod_filter(&b, &result.param, ctrl, filter) < 0) - goto next; - - spa_node_emit_result(&impl->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result); - - if (++count != num) - goto next; - -enum_end: - res = 0; - return res; -} - -struct val { - uint32_t type; - float f_val; - int32_t i_val; - bool b_val; - uint32_t id; -}; - -static int do_update_ctrls(struct spa_loop *loop, - bool async, - uint32_t seq, - const void *data, - size_t size, - void *user_data) -{ - struct impl *impl = (struct impl *)user_data; - const struct val *d = (const struct val *)data; - switch (d->type) { - case ControlTypeBool: - impl->ctrls.set(d->id, d->b_val); - break; - case ControlTypeFloat: - impl->ctrls.set(d->id, d->f_val); - break; - case ControlTypeInteger32: - impl->ctrls.set(d->id, (int32_t)d->i_val); - break; - default: - break; - } - return 0; -} - -static int -spa_libcamera_set_control(struct impl *impl, const struct spa_pod_prop *prop) -{ - const ControlInfoMap &info = impl->camera->controls(); - const ControlId *ctrl_id; - int res; - struct val d; - uint32_t control_id; - - control_id = prop_id_to_control(impl, prop->key); - if (control_id == SPA_ID_INVALID) - return -ENOENT; - - auto v = info.idmap().find(control_id); - if (v == info.idmap().end()) - return -ENOENT; - - ctrl_id = v->second; - - d.type = ctrl_id->type(); - d.id = ctrl_id->id(); - - switch (d.type) { - case ControlTypeBool: - if ((res = spa_pod_get_bool(&prop->value, &d.b_val)) < 0) - goto done; - break; - case ControlTypeFloat: - if ((res = spa_pod_get_float(&prop->value, &d.f_val)) < 0) - goto done; - break; - case ControlTypeInteger32: - if ((res = spa_pod_get_int(&prop->value, &d.i_val)) < 0) - goto done; - break; - default: - res = -EINVAL; - goto done; - } - spa_loop_invoke(impl->data_loop, do_update_ctrls, 0, &d, sizeof(d), true, impl); - res = 0; -done: - return res; -} - - -static void libcamera_on_fd_events(struct spa_source *source) -{ - struct impl *impl = (struct impl*) source->data; - struct spa_io_buffers *io; - struct port *port = &impl->out_ports[0]; - uint32_t index, buffer_id; - struct buffer *b; - uint64_t cnt; - - if (source->rmask & SPA_IO_ERR) { - spa_log_error(impl->log, "libcamera %p: error %08x", impl, source->rmask); - if (impl->source.loop) - spa_loop_remove_source(impl->data_loop, &impl->source); - return; - } - - if (!(source->rmask & SPA_IO_IN)) { - spa_log_warn(impl->log, "libcamera %p: spurious wakeup %d", impl, source->rmask); - return; - } - - if (spa_system_eventfd_read(impl->system, impl->source.fd, &cnt) < 0) { - spa_log_error(impl->log, "Failed to read on event fd"); - return; - } - - if (spa_ringbuffer_get_read_index(&port->ring, &index) < 1) { - spa_log_error(impl->log, "nothing is queued"); - return; - } - buffer_id = port->ring_ids[index & MASK_BUFFERS]; - spa_ringbuffer_read_update(&port->ring, index + 1); - - b = &port->buffers[buffer_id]; - spa_list_append(&port->queue, &b->link); - - io = port->io; - if (io == NULL) { - b = spa_list_first(&port->queue, struct buffer, link); - spa_list_remove(&b->link); - SPA_FLAG_SET(b->flags, BUFFER_FLAG_OUTSTANDING); - spa_libcamera_buffer_recycle(impl, port, b->id); - } else if (io->status != SPA_STATUS_HAVE_DATA) { - if (io->buffer_id < port->n_buffers) - spa_libcamera_buffer_recycle(impl, port, io->buffer_id); - - b = spa_list_first(&port->queue, struct buffer, link); - spa_list_remove(&b->link); - SPA_FLAG_SET(b->flags, BUFFER_FLAG_OUTSTANDING); - - io->buffer_id = b->id; - io->status = SPA_STATUS_HAVE_DATA; - spa_log_trace(impl->log, "libcamera %p: now queued %d", impl, b->id); - } - spa_node_call_ready(&impl->callbacks, SPA_STATUS_HAVE_DATA); -} - -static int spa_libcamera_use_buffers(struct impl *impl, struct port *port, - struct spa_buffer **buffers, uint32_t n_buffers) -{ - return -ENOTSUP; -} - -static const struct { - Orientation libcamera_orientation; /* clockwise rotation then horizontal mirroring */ - uint32_t spa_transform_value; /* horizontal mirroring then counter-clockwise rotation */ -} orientation_map[] = { - { Orientation::Rotate0, SPA_META_TRANSFORMATION_None }, - { Orientation::Rotate0Mirror, SPA_META_TRANSFORMATION_Flipped }, - { Orientation::Rotate90, SPA_META_TRANSFORMATION_270 }, - { Orientation::Rotate90Mirror, SPA_META_TRANSFORMATION_Flipped90 }, - { Orientation::Rotate180, SPA_META_TRANSFORMATION_180 }, - { Orientation::Rotate180Mirror, SPA_META_TRANSFORMATION_Flipped180 }, - { Orientation::Rotate270, SPA_META_TRANSFORMATION_90 }, - { Orientation::Rotate270Mirror, SPA_META_TRANSFORMATION_Flipped270 }, -}; - -static uint32_t libcamera_orientation_to_spa_transform_value(Orientation orientation) -{ - for (const auto& t : orientation_map) { - if (t.libcamera_orientation == orientation) - return t.spa_transform_value; - } - return SPA_META_TRANSFORMATION_None; -} - -static int -mmap_init(struct impl *impl, struct port *port, - struct spa_buffer **buffers, uint32_t n_buffers) -{ - unsigned int i, j; - struct spa_data *d; - Stream *stream = impl->config->at(0).stream(); - const std::vector> &bufs = - impl->allocator->buffers(stream); - - if (n_buffers > 0) { - if (bufs.size() != n_buffers) - return -EINVAL; - - d = buffers[0]->datas; - - if (d[0].type != SPA_ID_INVALID && - d[0].type & (1u << SPA_DATA_DmaBuf)) { - port->memtype = SPA_DATA_DmaBuf; - } else if (d[0].type != SPA_ID_INVALID && - d[0].type & (1u << SPA_DATA_MemFd)) { - port->memtype = SPA_DATA_MemFd; - } else if (d[0].type & (1u << SPA_DATA_MemPtr)) { - port->memtype = SPA_DATA_MemPtr; - } else { - spa_log_error(impl->log, "can't use buffers of type %d", d[0].type); - return -EINVAL; - } - } - - for (i = 0; i < n_buffers; i++) { - struct buffer *b; - - if (buffers[i]->n_datas < 1) { - spa_log_error(impl->log, "invalid buffer data"); - return -EINVAL; - } - - b = &port->buffers[i]; - b->id = i; - b->outbuf = buffers[i]; - b->flags = BUFFER_FLAG_OUTSTANDING; - b->h = (struct spa_meta_header*)spa_buffer_find_meta_data(buffers[i], SPA_META_Header, sizeof(*b->h)); - - b->videotransform = (struct spa_meta_videotransform*)spa_buffer_find_meta_data( - buffers[i], SPA_META_VideoTransform, sizeof(*b->videotransform)); - if (b->videotransform) { - b->videotransform->transform = - libcamera_orientation_to_spa_transform_value(impl->config->orientation); - spa_log_debug(impl->log, "Setting videotransform for buffer %u to %u", - i, b->videotransform->transform); - - } - - d = buffers[i]->datas; - for(j = 0; j < buffers[i]->n_datas; ++j) { - d[j].type = port->memtype; - d[j].flags = SPA_DATA_FLAG_READABLE; - d[j].mapoffset = 0; - d[j].chunk->stride = port->streamConfig.stride; - d[j].chunk->flags = 0; - /* Update parameters according to the plane information */ - unsigned int numPlanes = bufs[i]->planes().size(); - if (buffers[i]->n_datas < numPlanes) { - if (j < buffers[i]->n_datas - 1) { - d[j].maxsize = bufs[i]->planes()[j].length; - d[j].chunk->offset = bufs[i]->planes()[j].offset; - d[j].chunk->size = bufs[i]->planes()[j].length; - } else { - d[j].chunk->offset = bufs[i]->planes()[j].offset; - for (uint8_t k = j; k < numPlanes; k++) { - d[j].maxsize += bufs[i]->planes()[k].length; - d[j].chunk->size += bufs[i]->planes()[k].length; - } - } - } else if (buffers[i]->n_datas == numPlanes) { - d[j].maxsize = bufs[i]->planes()[j].length; - d[j].chunk->offset = bufs[i]->planes()[j].offset; - d[j].chunk->size = bufs[i]->planes()[j].length; - } else { - spa_log_warn(impl->log, "buffer index: i: %d, data member " - "numbers: %d is greater than plane number: %d", - i, buffers[i]->n_datas, numPlanes); - d[j].maxsize = port->streamConfig.frameSize; - d[j].chunk->offset = 0; - d[j].chunk->size = port->streamConfig.frameSize; - } - - if (port->memtype == SPA_DATA_DmaBuf || - port->memtype == SPA_DATA_MemFd) { - d[j].flags |= SPA_DATA_FLAG_MAPPABLE; - d[j].fd = bufs[i]->planes()[j].fd.get(); - spa_log_debug(impl->log, "Got fd = %" PRId64 " for buffer: #%d", d[j].fd, i); - d[j].data = NULL; - SPA_FLAG_SET(b->flags, BUFFER_FLAG_ALLOCATED); - } - else if(port->memtype == SPA_DATA_MemPtr) { - d[j].fd = -1; - d[j].data = mmap(NULL, - d[j].maxsize + d[j].mapoffset, - PROT_READ, MAP_SHARED, - bufs[i]->planes()[j].fd.get(), - 0); - if (d[j].data == MAP_FAILED) { - spa_log_error(impl->log, "mmap: %m"); - continue; - } - b->ptr = d[j].data; - SPA_FLAG_SET(b->flags, BUFFER_FLAG_MAPPED); - spa_log_debug(impl->log, "mmap ptr:%p", d[j].data); - } else { - spa_log_error(impl->log, "invalid buffer type"); - return -EIO; - } - } - spa_libcamera_buffer_recycle(impl, port, i); - } - port->n_buffers = n_buffers; - spa_log_debug(impl->log, "we have %d buffers", n_buffers); - - return 0; -} - -static int -spa_libcamera_alloc_buffers(struct impl *impl, struct port *port, - struct spa_buffer **buffers, - uint32_t n_buffers) -{ - int res; - - if (port->n_buffers > 0) - return -EIO; - - if ((res = mmap_init(impl, port, buffers, n_buffers)) < 0) - return res; - - return 0; -} - - -void impl::requestComplete(libcamera::Request *request) -{ - struct impl *impl = this; - struct port *port = &impl->out_ports[0]; - Stream *stream = port->streamConfig.stream(); - uint32_t index, buffer_id; - struct buffer *b; - - spa_log_debug(impl->log, "request complete"); - - buffer_id = request->cookie(); - b = &port->buffers[buffer_id]; - - if ((request->status() == Request::RequestCancelled)) { - spa_log_debug(impl->log, "Request was cancelled"); - request->reuse(); - SPA_FLAG_SET(b->flags, BUFFER_FLAG_OUTSTANDING); - spa_libcamera_buffer_recycle(impl, port, b->id); - return; - } - FrameBuffer *buffer = request->findBuffer(stream); - if (buffer == nullptr) { - spa_log_warn(impl->log, "unknown buffer"); - return; - } - const FrameMetadata &fmd = buffer->metadata(); - - if (impl->clock) { - double target = (double)port->info.rate.num / port->info.rate.denom; - double corr; - - if (impl->dll.bw == 0.0) { - spa_dll_set_bw(&impl->dll, SPA_DLL_BW_MAX, port->info.rate.denom, port->info.rate.denom); - impl->clock->next_nsec = fmd.timestamp; - corr = 1.0; - } else { - double diff = ((double)impl->clock->next_nsec - (double)fmd.timestamp) / SPA_NSEC_PER_SEC; - double error = port->info.rate.denom * (diff - target); - corr = spa_dll_update(&impl->dll, SPA_CLAMPD(error, -128., 128.)); - } - /* FIXME, we should follow the driver clock and target_ values. - * for now we ignore and use our own. */ - impl->clock->target_rate = port->rate; - impl->clock->target_duration = 1; - - impl->clock->nsec = fmd.timestamp; - impl->clock->rate = port->rate; - impl->clock->position = fmd.sequence; - impl->clock->duration = 1; - impl->clock->delay = 0; - impl->clock->rate_diff = corr; - impl->clock->next_nsec += (uint64_t) (target * SPA_NSEC_PER_SEC * corr); - } - if (b->h) { - b->h->flags = 0; - b->h->offset = 0; - b->h->seq = fmd.sequence; - b->h->pts = fmd.timestamp; - b->h->dts_offset = 0; - } - request->reuse(); - - spa_ringbuffer_get_write_index(&port->ring, &index); - port->ring_ids[index & MASK_BUFFERS] = buffer_id; - spa_ringbuffer_write_update(&port->ring, index + 1); - - if (spa_system_eventfd_write(impl->system, impl->source.fd, 1) < 0) - spa_log_error(impl->log, "Failed to write on event fd"); - -} - -static int spa_libcamera_stream_on(struct impl *impl) -{ - struct port *port = &impl->out_ports[0]; - int res; - - if (!port->current_format) { - spa_log_error(impl->log, "Exiting %s with -EIO", __FUNCTION__); - return -EIO; - } - - if (impl->active) - return 0; - - impl->camera->requestCompleted.connect(impl, &impl::requestComplete); - - spa_log_info(impl->log, "starting camera %s", impl->device_id.c_str()); - if ((res = impl->camera->start(&impl->initial_controls)) < 0) - goto error; - - for (Request *req : impl->pendingRequests) { - if ((res = impl->camera->queueRequest(req)) < 0) - goto error_stop; - } - impl->pendingRequests.clear(); - - impl->dll.bw = 0.0; - - impl->source.func = libcamera_on_fd_events; - impl->source.data = impl; - impl->source.fd = spa_system_eventfd_create(impl->system, SPA_FD_CLOEXEC | SPA_FD_NONBLOCK); - impl->source.mask = SPA_IO_IN | SPA_IO_ERR; - impl->source.rmask = 0; - if (impl->source.fd < 0) { - spa_log_error(impl->log, "Failed to create eventfd: %s", spa_strerror(impl->source.fd)); - res = impl->source.fd; - goto error_stop; - } - spa_loop_add_source(impl->data_loop, &impl->source); - - impl->active = true; - - return 0; - -error_stop: - impl->camera->stop(); -error: - impl->camera->requestCompleted.disconnect(impl, &impl::requestComplete); - return res == -EACCES ? -EBUSY : res; -} - -static int do_remove_source(struct spa_loop *loop, - bool async, - uint32_t seq, - const void *data, - size_t size, - void *user_data) -{ - struct impl *impl = (struct impl *)user_data; - if (impl->source.loop) - spa_loop_remove_source(loop, &impl->source); - return 0; -} - -static int spa_libcamera_stream_off(struct impl *impl) -{ - struct port *port = &impl->out_ports[0]; - int res; - - if (!impl->active) { - for (std::unique_ptr &req : impl->requestPool) - req->reuse(); - return 0; - } - - impl->active = false; - spa_log_info(impl->log, "stopping camera %s", impl->device_id.c_str()); - impl->pendingRequests.clear(); - - if ((res = impl->camera->stop()) < 0) { - spa_log_warn(impl->log, "error stopping camera %s: %s", - impl->device_id.c_str(), spa_strerror(res)); - } - - impl->camera->requestCompleted.disconnect(impl, &impl::requestComplete); - - spa_loop_invoke(impl->data_loop, do_remove_source, 0, NULL, 0, true, impl); - if (impl->source.fd >= 0) { - spa_system_close(impl->system, impl->source.fd); - impl->source.fd = -1; - } - - spa_list_init(&port->queue); - - return 0; -}