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octave-forge-image-acquisition
image-acquisition-error-state.patch
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File image-acquisition-error-state.patch of Package octave-forge-image-acquisition
# HG changeset patch # User John Donoghue <john.donoghue@ieee.org> # Date 1664479839 14400 # Thu Sep 29 15:30:39 2022 -0400 # Node ID d9d55170b0a643f91b0330ac5c1dec9275e1440a # Parent 54ca9d1133df4652058212cd94a8457938703f4b * src/__v4l2_handler__.cc, src/cl_v4l2_handler.cc: remove usage of error_state (Bug #63136) diff -r 54ca9d1133df -r d9d55170b0a6 src/__v4l2_handler__.cc --- a/src/__v4l2_handler__.cc Thu Jul 14 13:01:04 2022 +0200 +++ b/src/__v4l2_handler__.cc Thu Sep 29 15:30:39 2022 -0400 @@ -43,13 +43,13 @@ v4l2_handler::register_type(); type_loaded = true; } + string device = args(0).string_value (); - if (! error_state) - { - v4l2_handler *h = new v4l2_handler (); - h->open (device.c_str ()); - retval.append (octave_value (h)); - } + + v4l2_handler *h = new v4l2_handler (); + h->open (device.c_str ()); + retval.append (octave_value (h)); + return retval; } @@ -149,11 +149,13 @@ v4l2_handler* imgh = get_v4l2_handler_from_ov (args(0)); if (imgh) { - int num = args(1).int_value (); - if (!error_state) - imgh->s_input (num); + if (! args(1).isnumeric()) + error("N has to be a integer selecting the desired video input, starting from 0."); else - error("N has to be a integer selecting the desired video input, starting from 0."); + { + int num = args(1).int_value (); + imgh->s_input (num); + } } return retval; } @@ -232,15 +234,16 @@ v4l2_handler* imgh = get_v4l2_handler_from_ov (args(0)); if (imgh) { - Matrix s = args(1).matrix_value (); - unsigned int width = s(0); - unsigned int height = s(1); - if (error_state) + if (!args (1).is_matrix_type()) + print_usage(); + else { - print_usage(); + Matrix s = args(1).matrix_value (); + unsigned int width = s(0); + unsigned int height = s(1); + string pixel_format = args(2).string_value (); + retval = octave_value(imgh->enum_frameintervals (pixel_format, width, height)); } - string pixel_format = args(2).string_value (); - retval = octave_value(imgh->enum_frameintervals (pixel_format, width, height)); } return retval; } @@ -336,6 +339,11 @@ print_usage (); return retval; } + if (!args (1).is_string() || !args (2).is_matrix_type()) + { + print_usage(); + return retval; + } v4l2_handler* imgh = get_v4l2_handler_from_ov (args(0)); if (imgh) @@ -344,10 +352,8 @@ Matrix s = args(2).matrix_value (); unsigned int xres = s(0); unsigned int yres = s(1); - if (! error_state) - { - imgh->s_fmt (fmt, xres, yres); - } + + imgh->s_fmt (fmt, xres, yres); } return retval; } @@ -398,15 +404,17 @@ print_usage (); return retval; } + if (!args (1).isnumeric()) + { + error("ID has to be an integer value"); + return retval; + } v4l2_handler* imgh = get_v4l2_handler_from_ov (args(0)); if (imgh) { unsigned int id = args(1).int_value (); - if (!error_state) - retval = octave_value(imgh->g_ctrl (id)); - else - error("ID has to be an integer value"); + retval = octave_value(imgh->g_ctrl (id)); } return retval; } @@ -429,16 +437,17 @@ print_usage (); return retval; } - + if (!args (1).isnumeric() || !args (2).isnumeric()) + { + error("ID and VALUE has to be integer values"); + return retval; + } v4l2_handler* imgh = get_v4l2_handler_from_ov (args(0)); if (imgh) { unsigned int id = args(1).int_value (); unsigned int value = args(2).int_value (); - if (!error_state) - imgh->s_ctrl (id, value); - else - error("ID and VALUE has to be integer values"); + imgh->s_ctrl (id, value); } return retval; } @@ -485,15 +494,16 @@ print_usage (); return retval; } + if (!args (1).isnumeric()) + { + return retval; + } v4l2_handler* imgh = get_v4l2_handler_from_ov (args(0)); if (imgh) { unsigned int n_buffers = args(1).int_value (); - if (! error_state) - { - imgh->streamon (n_buffers); - } + imgh->streamon (n_buffers); } return retval; } @@ -515,6 +525,10 @@ print_usage (); return retval; } + if (nargin > 1 && !args (1).isnumeric()) + { + return retval; + } v4l2_handler* imgh = get_v4l2_handler_from_ov (args(0)); if (imgh) @@ -522,10 +536,7 @@ int preview = 0; if (nargin==2) preview = args(1).int_value (); - if (!error_state) - { - retval = imgh->capture (nargout, preview); - } + retval = imgh->capture (nargout, preview); } return retval; } diff -r 54ca9d1133df -r d9d55170b0a6 src/cl_v4l2_handler.cc --- a/src/cl_v4l2_handler.cc Thu Jul 14 13:01:04 2022 +0200 +++ b/src/cl_v4l2_handler.cc Thu Sep 29 15:30:39 2022 -0400 @@ -226,17 +226,16 @@ xioctl (fd, VIDIOC_QUERYCAP, &cap); octave_scalar_map st; - if (!error_state) - { - st.assign ("driver", std::string((const char*)cap.driver)); - st.assign ("card", std::string((const char*)cap.card)); - st.assign ("bus_info", std::string((const char*)cap.bus_info)); + + st.assign ("driver", std::string((const char*)cap.driver)); + st.assign ("card", std::string((const char*)cap.card)); + st.assign ("bus_info", std::string((const char*)cap.bus_info)); - char tmp[15]; - snprintf (tmp, 15, "%u.%u.%u", (cap.version >> 16) & 0xFF, (cap.version >> 8) & 0xFF, cap.version & 0xFF); - st.assign ("version", std::string(tmp)); - st.assign ("capabilities", (unsigned int)(cap.capabilities)); - } + char tmp[15]; + snprintf (tmp, 15, "%u.%u.%u", (cap.version >> 16) & 0xFF, (cap.version >> 8) & 0xFF, cap.version & 0xFF); + st.assign ("version", std::string(tmp)); + st.assign ("capabilities", (unsigned int)(cap.capabilities)); + return octave_value (st); } @@ -407,19 +406,16 @@ CLEAR(sparam); sparam.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; xioctl(fd, VIDIOC_G_PARM, &sparam); - if(!error_state) + if(sparam.parm.capture.capability & V4L2_CAP_TIMEPERFRAME) { - if(sparam.parm.capture.capability & V4L2_CAP_TIMEPERFRAME) - { - const struct v4l2_fract &tf = sparam.parm.capture.timeperframe; - ret(0) = tf.numerator; - ret(1) = tf.denominator; - } - else - { - warning("v4l2_handler::g_parm: V4L2_CAP_TIMEPERFRAME is not supported"); - return Matrix(0,0); - } + const struct v4l2_fract &tf = sparam.parm.capture.timeperframe; + ret(0) = tf.numerator; + ret(1) = tf.denominator; + } + else + { + warning("v4l2_handler::g_parm: V4L2_CAP_TIMEPERFRAME is not supported"); + return Matrix(0,0); } return ret; } @@ -979,7 +975,7 @@ error("v4l2_handler::capture_to_ppm: Cannot open file '%s'", fn); } fprintf (fout, "P6\n%d %d 255\n", - img.dim2(), img.dim3()); + (int)img.dim2(), (int)img.dim3()); fwrite (p, img.numel(), 1, fout); fclose (fout); } @@ -1012,8 +1008,7 @@ enum v4l2_buf_type type; type = V4L2_BUF_TYPE_VIDEO_CAPTURE; xioctl(fd, VIDIOC_STREAMON, &type); - if (!error_state) - streaming = 1; + streaming = 1; } }
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