--- /dev/null
+/*********************************************************************
+* Software License Agreement (BSD License)
+*
+* Copyright (C) 2010-2012 Ken Tossell
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above
+* copyright notice, this list of conditions and the following
+* disclaimer in the documentation and/or other materials provided
+* with the distribution.
+* * Neither the name of the author nor other contributors may be
+* used to endorse or promote products derived from this software
+* without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+* POSSIBILITY OF SUCH DAMAGE.
+*********************************************************************/
+/**
+ * @defgroup diag Diagnostics
+ * @brief Interpretation of devices, error codes and negotiated stream parameters
+ */
+
+#include "libuvc/libuvc.h"
+#include "libuvc/libuvc_internal.h"
+
+/** @internal */
+typedef struct _uvc_error_msg {
+ uvc_error_t err;
+ const char *msg;
+} _uvc_error_msg_t;
+
+static const _uvc_error_msg_t uvc_error_msgs[] = {
+ {UVC_SUCCESS, "Success"},
+ {UVC_ERROR_IO, "I/O error"},
+ {UVC_ERROR_INVALID_PARAM, "Invalid parameter"},
+ {UVC_ERROR_ACCESS, "Access denied"},
+ {UVC_ERROR_NO_DEVICE, "No such device"},
+ {UVC_ERROR_NOT_FOUND, "Not found"},
+ {UVC_ERROR_BUSY, "Busy"},
+ {UVC_ERROR_TIMEOUT, "Timeout"},
+ {UVC_ERROR_OVERFLOW, "Overflow"},
+ {UVC_ERROR_PIPE, "Pipe"},
+ {UVC_ERROR_INTERRUPTED, "Interrupted"},
+ {UVC_ERROR_NO_MEM, "Out of memory"},
+ {UVC_ERROR_NOT_SUPPORTED, "Not supported"},
+ {UVC_ERROR_INVALID_DEVICE, "Invalid device"},
+ {UVC_ERROR_INVALID_MODE, "Invalid mode"},
+ {UVC_ERROR_CALLBACK_EXISTS, "Callback exists"}
+};
+
+/** @brief Print a message explaining an error in the UVC driver
+ * @ingroup diag
+ *
+ * @param err UVC error code
+ * @param msg Optional custom message, prepended to output
+ */
+void uvc_perror(uvc_error_t err, const char *msg) {
+ if (msg && *msg) {
+ fputs(msg, stderr);
+ fputs(": ", stderr);
+ }
+
+ fprintf(stderr, "%s (%d)\n", uvc_strerror(err), err);
+}
+
+/** @brief Return a string explaining an error in the UVC driver
+ * @ingroup diag
+ *
+ * @param err UVC error code
+ * @return error message
+ */
+const char* uvc_strerror(uvc_error_t err) {
+ size_t idx;
+
+ for (idx = 0; idx < sizeof(uvc_error_msgs) / sizeof(*uvc_error_msgs); ++idx) {
+ if (uvc_error_msgs[idx].err == err) {
+ return uvc_error_msgs[idx].msg;
+ }
+ }
+
+ return "Unknown error";
+}
+
+/** @brief Print the values in a stream control block
+ * @ingroup diag
+ *
+ * @param devh UVC device
+ * @param stream Output stream (stderr if NULL)
+ */
+void uvc_print_stream_ctrl(uvc_stream_ctrl_t *ctrl, FILE *stream) {
+ if (stream == NULL)
+ stream = stderr;
+
+ fprintf(stream, "bmHint: %04x\n", ctrl->bmHint);
+ fprintf(stream, "bFormatIndex: %d\n", ctrl->bFormatIndex);
+ fprintf(stream, "bFrameIndex: %d\n", ctrl->bFrameIndex);
+ fprintf(stream, "dwFrameInterval: %u\n", ctrl->dwFrameInterval);
+ fprintf(stream, "wKeyFrameRate: %d\n", ctrl->wKeyFrameRate);
+ fprintf(stream, "wPFrameRate: %d\n", ctrl->wPFrameRate);
+ fprintf(stream, "wCompQuality: %d\n", ctrl->wCompQuality);
+ fprintf(stream, "wCompWindowSize: %d\n", ctrl->wCompWindowSize);
+ fprintf(stream, "wDelay: %d\n", ctrl->wDelay);
+ fprintf(stream, "dwMaxVideoFrameSize: %u\n", ctrl->dwMaxVideoFrameSize);
+ fprintf(stream, "dwMaxPayloadTransferSize: %u\n", ctrl->dwMaxPayloadTransferSize);
+ fprintf(stream, "bInterfaceNumber: %d\n", ctrl->bInterfaceNumber);
+}
+
+static const char *_uvc_name_for_format_subtype(uint8_t subtype) {
+ switch (subtype) {
+ case UVC_VS_FORMAT_UNCOMPRESSED:
+ return "UncompressedFormat";
+ case UVC_VS_FORMAT_MJPEG:
+ return "MJPEGFormat";
+ case UVC_VS_FORMAT_FRAME_BASED:
+ return "FrameFormat";
+ default:
+ return "Unknown";
+ }
+}
+
+/** @brief Print camera capabilities and configuration.
+ * @ingroup diag
+ *
+ * @param devh UVC device
+ * @param stream Output stream (stderr if NULL)
+ */
+void uvc_print_diag(uvc_device_handle_t *devh, FILE *stream) {
+ if (stream == NULL)
+ stream = stderr;
+
+ if (devh->info->ctrl_if.bcdUVC) {
+ uvc_streaming_interface_t *stream_if;
+ int stream_idx = 0;
+
+ uvc_device_descriptor_t *desc;
+ uvc_get_device_descriptor(devh->dev, &desc);
+
+ fprintf(stream, "DEVICE CONFIGURATION (%04x:%04x/%s) ---\n",
+ desc->idVendor, desc->idProduct,
+ desc->serialNumber ? desc->serialNumber : "[none]");
+
+ uvc_free_device_descriptor(desc);
+
+ fprintf(stream, "Status: %s\n", devh->streams ? "streaming" : "idle");
+
+ fprintf(stream, "VideoControl:\n"
+ "\tbcdUVC: 0x%04x\n",
+ devh->info->ctrl_if.bcdUVC);
+
+ DL_FOREACH(devh->info->stream_ifs, stream_if) {
+ uvc_format_desc_t *fmt_desc;
+
+ ++stream_idx;
+
+ fprintf(stream, "VideoStreaming(%d):\n"
+ "\tbEndpointAddress: %d\n\tFormats:\n",
+ stream_idx, stream_if->bEndpointAddress);
+
+ DL_FOREACH(stream_if->format_descs, fmt_desc) {
+ uvc_frame_desc_t *frame_desc;
+ int i;
+
+ switch (fmt_desc->bDescriptorSubtype) {
+ case UVC_VS_FORMAT_UNCOMPRESSED:
+ case UVC_VS_FORMAT_MJPEG:
+ case UVC_VS_FORMAT_FRAME_BASED:
+ fprintf(stream,
+ "\t\%s(%d)\n"
+ "\t\t bits per pixel: %d\n"
+ "\t\t GUID: ",
+ _uvc_name_for_format_subtype(fmt_desc->bDescriptorSubtype),
+ fmt_desc->bFormatIndex,
+ fmt_desc->bBitsPerPixel);
+
+ for (i = 0; i < 16; ++i)
+ fprintf(stream, "%02x", fmt_desc->guidFormat[i]);
+
+ fprintf(stream, " (%4s)\n", fmt_desc->fourccFormat );
+
+ fprintf(stream,
+ "\t\t default frame: %d\n"
+ "\t\t aspect ratio: %dx%d\n"
+ "\t\t interlace flags: %02x\n"
+ "\t\t copy protect: %02x\n",
+ fmt_desc->bDefaultFrameIndex,
+ fmt_desc->bAspectRatioX,
+ fmt_desc->bAspectRatioY,
+ fmt_desc->bmInterlaceFlags,
+ fmt_desc->bCopyProtect);
+
+ DL_FOREACH(fmt_desc->frame_descs, frame_desc) {
+ uint32_t *interval_ptr;
+
+ fprintf(stream,
+ "\t\t\tFrameDescriptor(%d)\n"
+ "\t\t\t capabilities: %02x\n"
+ "\t\t\t size: %dx%d\n"
+ "\t\t\t bit rate: %d-%d\n"
+ "\t\t\t max frame size: %d\n"
+ "\t\t\t default interval: 1/%d\n",
+ frame_desc->bFrameIndex,
+ frame_desc->bmCapabilities,
+ frame_desc->wWidth,
+ frame_desc->wHeight,
+ frame_desc->dwMinBitRate,
+ frame_desc->dwMaxBitRate,
+ frame_desc->dwMaxVideoFrameBufferSize,
+ 10000000 / frame_desc->dwDefaultFrameInterval);
+ if (frame_desc->intervals) {
+ for (interval_ptr = frame_desc->intervals;
+ *interval_ptr;
+ ++interval_ptr) {
+ fprintf(stream,
+ "\t\t\t interval[%d]: 1/%d\n",
+ (int) (interval_ptr - frame_desc->intervals),
+ 10000000 / *interval_ptr);
+ }
+ } else {
+ fprintf(stream,
+ "\t\t\t min interval[%d] = 1/%d\n"
+ "\t\t\t max interval[%d] = 1/%d\n",
+ frame_desc->dwMinFrameInterval,
+ 10000000 / frame_desc->dwMinFrameInterval,
+ frame_desc->dwMaxFrameInterval,
+ 10000000 / frame_desc->dwMaxFrameInterval);
+ if (frame_desc->dwFrameIntervalStep)
+ fprintf(stream,
+ "\t\t\t interval step[%d] = 1/%d\n",
+ frame_desc->dwFrameIntervalStep,
+ 10000000 / frame_desc->dwFrameIntervalStep);
+ }
+ }
+ break;
+ default:
+ fprintf(stream, "\t-UnknownFormat (%d)\n",
+ fmt_desc->bDescriptorSubtype );
+ }
+ }
+ }
+
+ fprintf(stream, "END DEVICE CONFIGURATION\n");
+ } else {
+ fprintf(stream, "uvc_print_diag: Device not configured!\n");
+ }
+}
+
+/** @brief Print all possible frame configuration.
+ * @ingroup diag
+ *
+ * @param devh UVC device
+ * @param stream Output stream (stderr if NULL)
+ */
+void uvc_print_frameformats(uvc_device_handle_t *devh) {
+
+ if (devh->info->ctrl_if.bcdUVC) {
+ uvc_streaming_interface_t *stream_if;
+ int stream_idx = 0;
+ DL_FOREACH(devh->info->stream_ifs, stream_if) {
+ uvc_format_desc_t *fmt_desc;
+ ++stream_idx;
+
+ DL_FOREACH(stream_if->format_descs, fmt_desc) {
+ uvc_frame_desc_t *frame_desc;
+ int i;
+
+ switch (fmt_desc->bDescriptorSubtype) {
+ case UVC_VS_FORMAT_UNCOMPRESSED:
+ case UVC_VS_FORMAT_MJPEG:
+ case UVC_VS_FORMAT_FRAME_BASED:
+ printf(" \%s(%d)\n"
+ " bits per pixel: %d\n"
+ " GUID: ",
+ _uvc_name_for_format_subtype(fmt_desc->bDescriptorSubtype),
+ fmt_desc->bFormatIndex,
+ fmt_desc->bBitsPerPixel);
+
+ for (i = 0; i < 16; ++i)
+ printf("%02x", fmt_desc->guidFormat[i]);
+
+ printf(" (%4s)\n", fmt_desc->fourccFormat );
+
+ printf(" default frame: %d\n"
+ " aspect ratio: %dx%d\n"
+ " interlace flags: %02x\n"
+ " copy protect: %02x\n",
+ fmt_desc->bDefaultFrameIndex,
+ fmt_desc->bAspectRatioX,
+ fmt_desc->bAspectRatioY,
+ fmt_desc->bmInterlaceFlags,
+ fmt_desc->bCopyProtect);
+
+ DL_FOREACH(fmt_desc->frame_descs, frame_desc) {
+ uint32_t *interval_ptr;
+
+ printf(" FrameDescriptor(%d)\n"
+ " capabilities: %02x\n"
+ " size: %dx%d\n"
+ " bit rate: %d-%d\n"
+ " max frame size: %d\n"
+ " default interval: 1/%d\n",
+ frame_desc->bFrameIndex,
+ frame_desc->bmCapabilities,
+ frame_desc->wWidth,
+ frame_desc->wHeight,
+ frame_desc->dwMinBitRate,
+ frame_desc->dwMaxBitRate,
+ frame_desc->dwMaxVideoFrameBufferSize,
+ 10000000 / frame_desc->dwDefaultFrameInterval);
+ if (frame_desc->intervals) {
+ for (interval_ptr = frame_desc->intervals;
+ *interval_ptr;
+ ++interval_ptr) {
+ printf(" interval[%d]: 1/%d\n",
+ (int) (interval_ptr - frame_desc->intervals),
+ 10000000 / *interval_ptr);
+ }
+ } else {
+ printf(" min interval[%d] = 1/%d\n"
+ " max interval[%d] = 1/%d\n",
+ frame_desc->dwMinFrameInterval,
+ 10000000 / frame_desc->dwMinFrameInterval,
+ frame_desc->dwMaxFrameInterval,
+ 10000000 / frame_desc->dwMaxFrameInterval);
+ if (frame_desc->dwFrameIntervalStep)
+ printf(" interval step[%d] = 1/%d\n",
+ frame_desc->dwFrameIntervalStep,
+ 10000000 / frame_desc->dwFrameIntervalStep);
+ }
+ }
+ break;
+ default:
+ printf("\t-UnknownFormat (%d)\n",fmt_desc->bDescriptorSubtype );
+ }
+ }
+ }
+ } else {
+ printf("uvc_print_frameformats: Device not configured!\n");
+ }
+}
projects / rtmpclient.git / blobdiff