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RaspiVid.c
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RaspiVid.c
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/*
Copyright (c) 2013, Broadcom Europe Ltd
Copyright (c) 2013, James Hughes
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 copyright holder nor the
names of its 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 HOLDER 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.
*/
/**
* \file RaspiVid.c
* Command line program to capture a camera video stream and encode it to file.
* Also optionally display a preview/viewfinder of current camera input.
*
* \date 28th Feb 2013
* \Author: James Hughes
*
* Description
*
* 3 components are created; camera, preview and video encoder.
* Camera component has three ports, preview, video and stills.
* This program connects preview and stills to the preview and video
* encoder. Using mmal we don't need to worry about buffers between these
* components, but we do need to handle buffers from the encoder, which
* are simply written straight to the file in the requisite buffer callback.
*
* We use the RaspiCamControl code to handle the specific camera settings.
* We use the RaspiPreview code to handle the (generic) preview window
*/
// We use some GNU extensions (basename)
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <memory.h>
#include <sysexits.h>
#include <libxml/xmlmemory.h>
#include <libxml/parser.h>
#define VERSION_STRING "v1.3.12"
#include "bcm_host.h"
#include "interface/vcos/vcos.h"
#include "interface/mmal/mmal.h"
#include "interface/mmal/mmal_logging.h"
#include "interface/mmal/mmal_buffer.h"
#include "interface/mmal/util/mmal_util.h"
#include "interface/mmal/util/mmal_util_params.h"
#include "interface/mmal/util/mmal_default_components.h"
#include "interface/mmal/util/mmal_connection.h"
#include "RaspiCamControl.h"
#include "RaspiPreview.h"
#include "RaspiCLI.h"
#include "H264Streamer.h"
#include <semaphore.h>
// Standard port setting for the camera component
#define MMAL_CAMERA_PREVIEW_PORT 0
#define MMAL_CAMERA_VIDEO_PORT 1
#define MMAL_CAMERA_CAPTURE_PORT 2
// Video format information
// 0 implies variable
#define VIDEO_FRAME_RATE_NUM 30
#define VIDEO_FRAME_RATE_DEN 1
/// Video render needs at least 2 buffers.
#define VIDEO_OUTPUT_BUFFERS_NUM 3
// Max bitrate we allow for recording
const int MAX_BITRATE = 25000000; // 25Mbits/s
/// Interval at which we check for an failure abort during capture
const int ABORT_INTERVAL = 100; // ms
/// Capture/Pause switch method
/// Simply capture for time specified
#define WAIT_METHOD_NONE 0
/// Cycle between capture and pause for times specified
#define WAIT_METHOD_TIMED 1
/// Switch between capture and pause on keypress
#define WAIT_METHOD_KEYPRESS 2
/// Switch between capture and pause on signal
#define WAIT_METHOD_SIGNAL 3
/// Run/record forever
#define WAIT_METHOD_FOREVER 4
int mmal_status_to_int(MMAL_STATUS_T status);
static void signal_handler(int signal_number);
// Forward
typedef struct RASPIVID_STATE_S RASPIVID_STATE;
s_RaspberrIPCam_Config RaspberrIPCam_Config;
/** Struct used to pass information in encoder port userdata to callback
*/
typedef struct
{
FILE *file_handle; /// File handle to write buffer data to.
RASPIVID_STATE *pstate; /// pointer to our state in case required in callback
int abort; /// Set to 1 in callback if an error occurs to attempt to abort the capture
char *cb_buff; /// Circular buffer
int cb_len; /// Length of buffer
int cb_wptr; /// Current write pointer
int cb_wrap; /// Has buffer wrapped at least once?
int cb_data; /// Valid bytes in buffer
#define IFRAME_BUFSIZE (60*1000)
int iframe_buff[IFRAME_BUFSIZE]; /// buffer of iframe pointers
int iframe_buff_wpos;
int iframe_buff_rpos;
char header_bytes[29];
int header_wptr;
FILE *imv_file_handle; /// File handle to write inline motion vectors to.
} PORT_USERDATA;
/** Structure containing all state information for the current run
*/
struct RASPIVID_STATE_S
{
int timeout; /// Time taken before frame is grabbed and app then shuts down. Units are milliseconds
int width; /// Requested width of image
int height; /// requested height of image
int bitrate; /// Requested bitrate
int framerate; /// Requested frame rate (fps)
int intraperiod; /// Intra-refresh period (key frame rate)
int quantisationParameter; /// Quantisation parameter - quality. Set bitrate 0 and set this for variable bitrate
int bInlineHeaders; /// Insert inline headers to stream (SPS, PPS)
char *filename; /// filename of output file
int verbose; /// !0 if want detailed run information
int demoMode; /// Run app in demo mode
int demoInterval; /// Interval between camera settings changes
int immutableInput; /// Flag to specify whether encoder works in place or creates a new buffer. Result is preview can display either
/// the camera output or the encoder output (with compression artifacts)
int profile; /// H264 profile to use for encoding
int waitMethod; /// Method for switching between pause and capture
int onTime; /// In timed cycle mode, the amount of time the capture is on per cycle
int offTime; /// In timed cycle mode, the amount of time the capture is off per cycle
int segmentSize; /// Segment mode In timed cycle mode, the amount of time the capture is off per cycle
int segmentWrap; /// Point at which to wrap segment counter
int segmentNumber; /// Current segment counter
int splitNow; /// Split at next possible i-frame if set to 1.
int splitWait; /// Switch if user wants splited files
RASPIPREVIEW_PARAMETERS preview_parameters; /// Preview setup parameters
RASPICAM_CAMERA_PARAMETERS camera_parameters; /// Camera setup parameters
MMAL_COMPONENT_T *camera_component; /// Pointer to the camera component
MMAL_COMPONENT_T *encoder_component; /// Pointer to the encoder component
MMAL_CONNECTION_T *preview_connection; /// Pointer to the connection from camera to preview
MMAL_CONNECTION_T *encoder_connection; /// Pointer to the connection from camera to encoder
MMAL_POOL_T *encoder_pool; /// Pointer to the pool of buffers used by encoder output port
PORT_USERDATA callback_data; /// Used to move data to the encoder callback
int bCapturing; /// State of capture/pause
int bCircularBuffer; /// Whether we are writing to a circular buffer
int inlineMotionVectors; /// Encoder outputs inline Motion Vectors
char *imv_filename; /// filename of inline Motion Vectors output
int cameraNum; /// Camera number
int settings; /// Request settings from the camera
int sensor_mode; /// Sensor mode. 0=auto. Check docs/forum for modes selected by other values.
};
/// Structure to cross reference H264 profile strings against the MMAL parameter equivalent
static XREF_T profile_map[] =
{
{"baseline", MMAL_VIDEO_PROFILE_H264_BASELINE},
{"main", MMAL_VIDEO_PROFILE_H264_MAIN},
{"high", MMAL_VIDEO_PROFILE_H264_HIGH},
// {"constrained", MMAL_VIDEO_PROFILE_H264_CONSTRAINED_BASELINE} // Does anyone need this?
};
static int profile_map_size = sizeof(profile_map) / sizeof(profile_map[0]);
static XREF_T initial_map[] =
{
{"record", 0},
{"pause", 1},
};
static int initial_map_size = sizeof(initial_map) / sizeof(initial_map[0]);
static void display_valid_parameters(char *app_name);
/// Command ID's and Structure defining our command line options
#define CommandHelp 0
#define CommandWidth 1
#define CommandHeight 2
#define CommandBitrate 3
#define CommandOutput 4
#define CommandVerbose 5
#define CommandTimeout 6
#define CommandDemoMode 7
#define CommandFramerate 8
#define CommandPreviewEnc 9
#define CommandIntraPeriod 10
#define CommandProfile 11
#define CommandTimed 12
#define CommandSignal 13
#define CommandKeypress 14
#define CommandInitialState 15
#define CommandQP 16
#define CommandInlineHeaders 17
#define CommandSegmentFile 18
#define CommandSegmentWrap 19
#define CommandSegmentStart 20
#define CommandSplitWait 21
#define CommandCircular 22
#define CommandIMV 23
#define CommandCamSelect 24
#define CommandSettings 25
#define CommandSensorMode 26
static COMMAND_LIST cmdline_commands[] =
{
{ CommandHelp, "-help", "?", "This help information", 0 },
{ CommandWidth, "-width", "w", "Set image width <size>. Default 1920", 1 },
{ CommandHeight, "-height", "h", "Set image height <size>. Default 1080", 1 },
{ CommandBitrate, "-bitrate", "b", "Set bitrate. Use bits per second (e.g. 10MBits/s would be -b 10000000)", 1 },
{ CommandOutput, "-output", "o", "Output filename <filename> (to write to stdout, use '-o -')", 1 },
{ CommandVerbose, "-verbose", "v", "Output verbose information during run", 0 },
{ CommandTimeout, "-timeout", "t", "Time (in ms) to capture for. If not specified, set to 5s. Zero to disable", 1 },
{ CommandDemoMode, "-demo", "d", "Run a demo mode (cycle through range of camera options, no capture)", 1},
{ CommandFramerate, "-framerate", "fps","Specify the frames per second to record", 1},
{ CommandPreviewEnc, "-penc", "e", "Display preview image *after* encoding (shows compression artifacts)", 0},
{ CommandIntraPeriod, "-intra", "g", "Specify the intra refresh period (key frame rate/GoP size). Zero to produce an initial I-frame and then just P-frames.", 1},
{ CommandProfile, "-profile", "pf", "Specify H264 profile to use for encoding", 1},
{ CommandTimed, "-timed", "td", "Cycle between capture and pause. -cycle on,off where on is record time and off is pause time in ms", 0},
{ CommandSignal, "-signal", "s", "Cycle between capture and pause on Signal", 0},
{ CommandKeypress, "-keypress", "k", "Cycle between capture and pause on ENTER", 0},
{ CommandInitialState, "-initial", "i", "Initial state. Use 'record' or 'pause'. Default 'record'", 1},
{ CommandQP, "-qp", "qp", "Quantisation parameter. Use approximately 10-40. Default 0 (off)", 1},
{ CommandInlineHeaders, "-inline", "ih", "Insert inline headers (SPS, PPS) to stream", 0},
{ CommandSegmentFile, "-segment", "sg", "Segment output file in to multiple files at specified interval <ms>", 1},
{ CommandSegmentWrap, "-wrap", "wr", "In segment mode, wrap any numbered filename back to 1 when reach number", 1},
{ CommandSegmentStart, "-start", "sn", "In segment mode, start with specified segment number", 1},
{ CommandSplitWait, "-split", "sp", "In wait mode, create new output file for each start event", 0},
{ CommandCircular, "-circular", "c", "Run encoded data through circular buffer until triggered then save", 0},
{ CommandIMV, "-vectors", "x", "Output filename <filename> for inline motion vectors", 1 },
{ CommandCamSelect, "-camselect", "cs", "Select camera <number>. Default 0", 1 },
{ CommandSettings, "-settings", "set","Retrieve camera settings and write to stdout", 0},
{ CommandSensorMode, "-mode", "md", "Force sensor mode. 0=auto. See docs for other modes available", 1},
};
static int cmdline_commands_size = sizeof(cmdline_commands) / sizeof(cmdline_commands[0]);
static struct
{
char *description;
int nextWaitMethod;
} wait_method_description[] =
{
{"Simple capture", WAIT_METHOD_NONE},
{"Capture forever", WAIT_METHOD_FOREVER},
{"Cycle on time", WAIT_METHOD_TIMED},
{"Cycle on keypress", WAIT_METHOD_KEYPRESS},
{"Cycle on signal", WAIT_METHOD_SIGNAL},
};
static int wait_method_description_size = sizeof(wait_method_description) / sizeof(wait_method_description[0]);
void parseVideoParameters(xmlDocPtr doc, xmlNodePtr cur, RASPIVID_STATE *state) {
xmlChar *key;
cur = cur->xmlChildrenNode;
int value;
while (cur != NULL) {
if ((!xmlStrcmp(cur->name, (const xmlChar *)"vres"))) {
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
state->height = atoi(key);
fprintf(stderr,"Vertical Resolution is : %d\n", state->height);
xmlFree(key);
}
if ((!xmlStrcmp(cur->name, (const xmlChar *)"hres"))) {
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
state->width = atoi(key);
fprintf(stderr,"Horizontal Resolution is : %d\n", state->width);
xmlFree(key);
}
if ((!xmlStrcmp(cur->name, (const xmlChar *)"bitrate"))) {
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
state->bitrate = atoi(key);
fprintf(stderr,"BitRate is : %d\n", state->bitrate);
xmlFree(key);
}
if ((!xmlStrcmp(cur->name, (const xmlChar *)"gopsize"))) {
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
state->intraperiod = atoi(key);
fprintf(stderr,"Gop Size is : %d\n", state->intraperiod);
xmlFree(key);
}
if ((!xmlStrcmp(cur->name, (const xmlChar *)"shutter"))) {
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
state->camera_parameters.shutter_speed = atoi(key);
fprintf(stderr,"Shutter Time is : %d\n", state->camera_parameters.shutter_speed);
xmlFree(key);
}
if ((!xmlStrcmp(cur->name, (const xmlChar *)"fps"))) {
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
state->framerate = atoi(key);
fprintf(stderr,"Frame Rate is : %d\n", state->framerate);
xmlFree(key);
}
cur = cur->next;
}
return;
}
void parseNetworkParameters(xmlDocPtr doc, xmlNodePtr cur) {
xmlChar *key;
cur = cur->xmlChildrenNode;
int value;
while (cur != NULL) {
if ((!xmlStrcmp(cur->name, (const xmlChar *)"rtspport"))) {
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
RaspberrIPCam_Config.Network.RTSP_Port = atoi(key);
fprintf(stderr,"RTSP Port is: %d\n", RaspberrIPCam_Config.Network.RTSP_Port);
xmlFree(key);
}
if ((!xmlStrcmp(cur->name, (const xmlChar *)"rtspurl"))) {
key = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
strcpy(RaspberrIPCam_Config.Network.RTSP_URL, key);
fprintf(stderr,"RTSP URL is : %s\n", RaspberrIPCam_Config.Network.RTSP_URL);
xmlFree(key);
}
cur = cur->next;
}
return;
}
static void LoadConfigFile(RASPIVID_STATE *state)
{
xmlDocPtr doc;
xmlNodePtr cur;
char *docname = "/var/www/config.xml";
doc = xmlParseFile(docname);
if (doc == NULL ) {
fprintf(stderr,"Document not parsed successfully. \n");
return;
}
cur = xmlDocGetRootElement(doc);
if (cur == NULL) {
fprintf(stderr,"empty document\n");
xmlFreeDoc(doc);
return;
}
if (xmlStrcmp(cur->name, (const xmlChar *) "raspberripcamconfig")) {
fprintf(stderr,"document of the wrong type, root node != config");
xmlFreeDoc(doc);
return;
}
cur = cur->xmlChildrenNode;
while (cur != NULL) {
if ((!xmlStrcmp(cur->name, (const xmlChar *)"video"))){
parseVideoParameters(doc, cur, state);
}
if ((!xmlStrcmp(cur->name, (const xmlChar *)"network"))){
parseNetworkParameters(doc, cur);
}
cur = cur->next;
}
xmlFreeDoc(doc);
return;
}
/**
* Assign a default set of parameters to the state passed in
*
* @param state Pointer to state structure to assign defaults to
*/
static void default_status(RASPIVID_STATE *state)
{
if (!state)
{
vcos_assert(0);
return;
}
// Default everything to zero
memset(state, 0, sizeof(RASPIVID_STATE));
// Now set anything non-zero
state->timeout = 0; // 5s delay before take image
state->width = 1920; // Default to 1080p
state->height = 1080;
state->bitrate = 17000000; // This is a decent default bitrate for 1080p
state->framerate = VIDEO_FRAME_RATE_NUM;
state->intraperiod = -1; // Not set
state->quantisationParameter = 0;
state->demoMode = 0;
state->demoInterval = 250; // ms
state->immutableInput = 1;
state->profile = MMAL_VIDEO_PROFILE_H264_HIGH;
state->onTime = 5000;
state->offTime = 5000;
state->bCapturing = 0;
state->bInlineHeaders = 0;
state->segmentSize = 0; // 0 = not segmenting the file.
state->segmentNumber = 1;
state->segmentWrap = 0; // Point at which to wrap segment number back to 1. 0 = no wrap
state->splitNow = 0;
state->splitWait = 0;
state->inlineMotionVectors = 0;
state->cameraNum = 0;
state->settings = 0;
state->sensor_mode = 0;
state->waitMethod = WAIT_METHOD_FOREVER;
strcpy(RaspberrIPCam_Config.Network.RTSP_URL,"\0");
// Setup preview window defaults
raspipreview_set_defaults(&state->preview_parameters);
// Set up the camera_parameters to default
raspicamcontrol_set_defaults(&state->camera_parameters);
}
/**
* Dump image state parameters to stderr.
*
* @param state Pointer to state structure to assign defaults to
*/
static void dump_status(RASPIVID_STATE *state)
{
int i;
if (!state)
{
vcos_assert(0);
return;
}
fprintf(stderr, "Width %d, Height %d, filename %s\n", state->width, state->height, state->filename);
fprintf(stderr, "bitrate %d, framerate %d, time delay %d\n", state->bitrate, state->framerate, state->timeout);
fprintf(stderr, "H264 Profile %s\n", raspicli_unmap_xref(state->profile, profile_map, profile_map_size));
fprintf(stderr, "H264 Quantisation level %d, Inline headers %s\n", state->quantisationParameter, state->bInlineHeaders ? "Yes" : "No");
// Not going to display segment data unless asked for it.
if (state->segmentSize)
fprintf(stderr, "Segment size %d, segment wrap value %d, initial segment number %d\n", state->segmentSize, state->segmentWrap, state->segmentNumber);
fprintf(stderr, "Wait method : ");
for (i=0;i<wait_method_description_size;i++)
{
if (state->waitMethod == wait_method_description[i].nextWaitMethod)
fprintf(stderr, wait_method_description[i].description);
}
fprintf(stderr, "\nInitial state '%s'\n", raspicli_unmap_xref(state->bCapturing, initial_map, initial_map_size));
fprintf(stderr, "\n\n");
raspipreview_dump_parameters(&state->preview_parameters);
raspicamcontrol_dump_parameters(&state->camera_parameters);
}
/**
* Parse the incoming command line and put resulting parameters in to the state
*
* @param argc Number of arguments in command line
* @param argv Array of pointers to strings from command line
* @param state Pointer to state structure to assign any discovered parameters to
* @return Non-0 if failed for some reason, 0 otherwise
*/
static int parse_cmdline(int argc, const char **argv, RASPIVID_STATE *state)
{
// Parse the command line arguments.
// We are looking for --<something> or -<abreviation of something>
int valid = 1;
int i;
for (i = 1; i < argc && valid; i++)
{
int command_id, num_parameters;
if (!argv[i])
continue;
if (argv[i][0] != '-')
{
valid = 0;
continue;
}
// Assume parameter is valid until proven otherwise
valid = 1;
command_id = raspicli_get_command_id(cmdline_commands, cmdline_commands_size, &argv[i][1], &num_parameters);
// If we found a command but are missing a parameter, continue (and we will drop out of the loop)
if (command_id != -1 && num_parameters > 0 && (i + 1 >= argc) )
continue;
// We are now dealing with a command line option
switch (command_id)
{
case CommandHelp:
display_valid_parameters(basename(argv[0]));
return -1;
case CommandWidth: // Width > 0
if (sscanf(argv[i + 1], "%u", &state->width) != 1)
valid = 0;
else
i++;
break;
case CommandHeight: // Height > 0
if (sscanf(argv[i + 1], "%u", &state->height) != 1)
valid = 0;
else
i++;
break;
case CommandBitrate: // 1-100
if (sscanf(argv[i + 1], "%u", &state->bitrate) == 1)
{
if (state->bitrate > MAX_BITRATE)
{
state->bitrate = MAX_BITRATE;
}
i++;
}
else
valid = 0;
break;
case CommandOutput: // output filename
{
int len = strlen(argv[i + 1]);
if (len)
{
state->filename = malloc(len + 1);
vcos_assert(state->filename);
if (state->filename)
strncpy(state->filename, argv[i + 1], len+1);
i++;
}
else
valid = 0;
break;
}
case CommandVerbose: // display lots of data during run
state->verbose = 1;
break;
case CommandTimeout: // Time to run viewfinder/capture
{
if (sscanf(argv[i + 1], "%u", &state->timeout) == 1)
{
// Ensure that if previously selected a waitMethod we dont overwrite it
if (state->timeout == 0 && state->waitMethod == WAIT_METHOD_NONE)
state->waitMethod = WAIT_METHOD_FOREVER;
i++;
}
else
valid = 0;
break;
}
case CommandDemoMode: // Run in demo mode - no capture
{
// Demo mode might have a timing parameter
// so check if a) we have another parameter, b) its not the start of the next option
if (i + 1 < argc && argv[i+1][0] != '-')
{
if (sscanf(argv[i + 1], "%u", &state->demoInterval) == 1)
{
// TODO : What limits do we need for timeout?
if (state->demoInterval == 0)
state->demoInterval = 250; // ms
state->demoMode = 1;
i++;
}
else
valid = 0;
}
else
{
state->demoMode = 1;
}
break;
}
case CommandFramerate: // fps to record
{
if (sscanf(argv[i + 1], "%u", &state->framerate) == 1)
{
// TODO : What limits do we need for fps 1 - 30 - 120??
i++;
}
else
valid = 0;
break;
}
case CommandPreviewEnc:
state->immutableInput = 0;
break;
case CommandIntraPeriod: // key frame rate
{
if (sscanf(argv[i + 1], "%u", &state->intraperiod) == 1)
i++;
else
valid = 0;
break;
}
case CommandQP: // quantisation parameter
{
if (sscanf(argv[i + 1], "%u", &state->quantisationParameter) == 1)
i++;
else
valid = 0;
break;
}
case CommandProfile: // H264 profile
{
state->profile = raspicli_map_xref(argv[i + 1], profile_map, profile_map_size);
if( state->profile == -1)
state->profile = MMAL_VIDEO_PROFILE_H264_HIGH;
i++;
break;
}
case CommandInlineHeaders: // H264 inline headers
{
state->bInlineHeaders = 1;
break;
}
case CommandTimed:
{
if (sscanf(argv[i + 1], "%u,%u", &state->onTime, &state->offTime) == 2)
{
i++;
if (state->onTime < 1000)
state->onTime = 1000;
if (state->offTime < 1000)
state->offTime = 1000;
state->waitMethod = WAIT_METHOD_TIMED;
}
else
valid = 0;
break;
}
case CommandKeypress:
state->waitMethod = WAIT_METHOD_KEYPRESS;
break;
case CommandSignal:
state->waitMethod = WAIT_METHOD_SIGNAL;
// Reenable the signal
signal(SIGUSR1, signal_handler);
break;
case CommandInitialState:
{
state->bCapturing = raspicli_map_xref(argv[i + 1], initial_map, initial_map_size);
if( state->bCapturing == -1)
state->bCapturing = 0;
i++;
break;
}
case CommandSegmentFile: // Segment file in to chunks of specified time
{
if (sscanf(argv[i + 1], "%u", &state->segmentSize) == 1)
{
// Must enable inline headers for this to work
state->bInlineHeaders = 1;
i++;
}
else
valid = 0;
break;
}
case CommandSegmentWrap: // segment wrap value
{
if (sscanf(argv[i + 1], "%u", &state->segmentWrap) == 1)
i++;
else
valid = 0;
break;
}
case CommandSegmentStart: // initial segment number
{
if((sscanf(argv[i + 1], "%u", &state->segmentNumber) == 1) && (!state->segmentWrap || (state->segmentNumber <= state->segmentWrap)))
i++;
else
valid = 0;
break;
}
case CommandSplitWait: // split files on restart
{
// Must enable inline headers for this to work
state->bInlineHeaders = 1;
state->splitWait = 1;
break;
}
case CommandCircular:
{
state->bCircularBuffer = 1;
break;
}
case CommandIMV: // output filename
{
state->inlineMotionVectors = 1;
int len = strlen(argv[i + 1]);
if (len)
{
state->imv_filename = malloc(len + 1);
vcos_assert(state->imv_filename);
if (state->imv_filename)
strncpy(state->imv_filename, argv[i + 1], len+1);
i++;
}
else
valid = 0;
break;
}
case CommandCamSelect: //Select camera input port
{
if (sscanf(argv[i + 1], "%u", &state->cameraNum) == 1)
{
i++;
}
else
valid = 0;
break;
}
case CommandSettings:
state->settings = 1;
break;
case CommandSensorMode:
{
if (sscanf(argv[i + 1], "%u", &state->sensor_mode) == 1)
{
i++;
}
else
valid = 0;
break;
}
default:
{
// Try parsing for any image specific parameters
// result indicates how many parameters were used up, 0,1,2
// but we adjust by -1 as we have used one already
const char *second_arg = (i + 1 < argc) ? argv[i + 1] : NULL;
int parms_used = (raspicamcontrol_parse_cmdline(&state->camera_parameters, &argv[i][1], second_arg));
// Still unused, try preview options
if (!parms_used)
parms_used = raspipreview_parse_cmdline(&state->preview_parameters, &argv[i][1], second_arg);
// If no parms were used, this must be a bad parameters
if (!parms_used)
valid = 0;
else
i += parms_used - 1;
break;
}
}
}
if (!valid)
{
fprintf(stderr, "Invalid command line option (%s)\n", argv[i-1]);
return 1;
}
// Always disable verbose if output going to stdout
if (state->filename && state->filename[0] == '-')
{
state->verbose = 0;
}
return 0;
}
/**
* Display usage information for the application to stdout
*
* @param app_name String to display as the application name
*/
static void display_valid_parameters(char *app_name)
{
int i;
fprintf(stderr, "Display camera output to display, and optionally saves an H264 capture at requested bitrate\n\n");
fprintf(stderr, "\nusage: %s [options]\n\n", app_name);
fprintf(stderr, "Image parameter commands\n\n");
raspicli_display_help(cmdline_commands, cmdline_commands_size);
// Profile options
fprintf(stderr, "\n\nH264 Profile options :\n%s", profile_map[0].mode );
for (i=1;i<profile_map_size;i++)
{
fprintf(stderr, ",%s", profile_map[i].mode);
}
fprintf(stderr, "\n");
// Help for preview options
raspipreview_display_help();
// Now display any help information from the camcontrol code
raspicamcontrol_display_help();
fprintf(stderr, "\n");
return;
}
/**
* buffer header callback function for camera control
*
* Callback will dump buffer data to the specific file
*
* @param port Pointer to port from which callback originated
* @param buffer mmal buffer header pointer
*/
static void camera_control_callback(MMAL_PORT_T *port, MMAL_BUFFER_HEADER_T *buffer)
{
if (buffer->cmd == MMAL_EVENT_PARAMETER_CHANGED)
{
MMAL_EVENT_PARAMETER_CHANGED_T *param = (MMAL_EVENT_PARAMETER_CHANGED_T *)buffer->data;
switch (param->hdr.id) {
case MMAL_PARAMETER_CAMERA_SETTINGS:
{
MMAL_PARAMETER_CAMERA_SETTINGS_T *settings = (MMAL_PARAMETER_CAMERA_SETTINGS_T*)param;
vcos_log_error("Exposure now %u, analog gain %u/%u, digital gain %u/%u",
settings->exposure,
settings->analog_gain.num, settings->analog_gain.den,
settings->digital_gain.num, settings->digital_gain.den);
vcos_log_error("AWB R=%u/%u, B=%u/%u",
settings->awb_red_gain.num, settings->awb_red_gain.den,
settings->awb_blue_gain.num, settings->awb_blue_gain.den
);
}
break;
}
}
else
{
vcos_log_error("Received unexpected camera control callback event, 0x%08x", buffer->cmd);
}
mmal_buffer_header_release(buffer);
}
/**
* Open a file based on the settings in state
*
* @param state Pointer to state
*/
static FILE *open_filename(RASPIVID_STATE *pState)
{
FILE *new_handle = NULL;
char *tempname = NULL, *filename = NULL;
if (pState->segmentSize || pState->splitWait)
{
// Create a new filename string
asprintf(&tempname, pState->filename, pState->segmentNumber);
filename = tempname;
}
else
{
filename = pState->filename;
}
if (filename)
new_handle = fopen(filename, "wb");
if (pState->verbose)
{
if (new_handle)
fprintf(stderr, "Opening output file \"%s\"\n", filename);
else
fprintf(stderr, "Failed to open new file \"%s\"\n", filename);
}
if (tempname)
free(tempname);
return new_handle;
}
/**
* Open a file based on the settings in state
*
* This time for the imv output file
*
* @param state Pointer to state
*/
static FILE *open_imv_filename(RASPIVID_STATE *pState)
{
FILE *new_handle = NULL;
char *tempname = NULL, *filename = NULL;
if (pState->segmentSize || pState->splitWait)
{
// Create a new filename string
asprintf(&tempname, pState->imv_filename, pState->segmentNumber);
filename = tempname;
}
else
{
filename = pState->imv_filename;
}
if (filename)
new_handle = fopen(filename, "wb");
if (pState->verbose)
{
if (new_handle)
fprintf(stderr, "Opening imv output file \"%s\"\n", filename);
else
fprintf(stderr, "Failed to open new imv file \"%s\"\n", filename);