/**
* ffmpeg_open
* Opens an mpeg file using the new libavformat method. Both mpeg1
* and mpeg4 are supported. However, if the current ffmpeg version doesn't allow
* mpeg1 with non-standard framerate, the open will fail. Timelapse is a special
* case and is tested separately.
*
* Returns
* A new allocated ffmpeg struct or NULL if any error happens.
*/
struct ffmpeg *ffmpeg_open(char *ffmpeg_video_codec, char *filename,
unsigned char *y, unsigned char *u, unsigned char *v,
int width, int height, int rate, int bps, int vbr)
{
AVCodecContext *c;
AVCodec *codec;
struct ffmpeg *ffmpeg;
int is_mpeg1;
int ret;
/*
* Allocate space for our ffmpeg structure. This structure contains all the
* codec and image information we need to generate movies.
* FIXME when motion exits we should close the movie to ensure that
* ffmpeg is freed.
*/
ffmpeg = mymalloc(sizeof(struct ffmpeg));
memset(ffmpeg, 0, sizeof(struct ffmpeg));
ffmpeg->vbr = vbr;
/* Store codec name in ffmpeg->codec, with buffer overflow check. */
snprintf(ffmpeg->codec, sizeof(ffmpeg->codec), "%s", ffmpeg_video_codec);
/* Allocation the output media context. */
#ifdef have_avformat_alloc_context
ffmpeg->oc = avformat_alloc_context();
#elif defined have_av_avformat_alloc_context
ffmpeg->oc = av_alloc_format_context();
#else
ffmpeg->oc = av_mallocz(sizeof(AVFormatContext));
#endif
if (!ffmpeg->oc) {
MOTION_LOG(ERR, TYPE_ENCODER, SHOW_ERRNO, "%s: Memory error while allocating"
" output media context");
ffmpeg_cleanups(ffmpeg);
return NULL;
}
/* Setup output format */
ffmpeg->oc->oformat = get_oformat(ffmpeg_video_codec, filename);
if (!ffmpeg->oc->oformat) {
ffmpeg_cleanups(ffmpeg);
return NULL;
}
snprintf(ffmpeg->oc->filename, sizeof(ffmpeg->oc->filename), "%s", filename);
/* Create a new video stream and initialize the codecs. */
ffmpeg->video_st = NULL;
if (ffmpeg->oc->oformat->video_codec != CODEC_ID_NONE) {
#if defined FF_API_NEW_AVIO
ffmpeg->video_st = avformat_new_stream(ffmpeg->oc, NULL /* Codec */);
#else
ffmpeg->video_st = av_new_stream(ffmpeg->oc, 0);
#endif
if (!ffmpeg->video_st) {
MOTION_LOG(ERR, TYPE_ENCODER, SHOW_ERRNO, "%s: av_new_stream - could"
" not alloc stream");
ffmpeg_cleanups(ffmpeg);
return NULL;
}
} else {
/* We did not get a proper video codec. */
MOTION_LOG(ERR, TYPE_ENCODER, NO_ERRNO, "%s: Failed to obtain a proper"
" video codec");
ffmpeg_cleanups(ffmpeg);
return NULL;
}
ffmpeg->c = c = AVSTREAM_CODEC_PTR(ffmpeg->video_st);
c->codec_id = ffmpeg->oc->oformat->video_codec;
#if LIBAVCODEC_VERSION_MAJOR < 53
c->codec_type = CODEC_TYPE_VIDEO;
#else
c->codec_type = AVMEDIA_TYPE_VIDEO;
#endif
is_mpeg1 = c->codec_id == CODEC_ID_MPEG1VIDEO;
if (strcmp(ffmpeg_video_codec, "ffv1") == 0)
c->strict_std_compliance = -2;
/* Uncomment to allow non-standard framerates. */
//c->strict_std_compliance = -1;
/* Set default parameters */
c->bit_rate = bps;
c->width = width;
c->height = height;
#if LIBAVCODEC_BUILD >= 4754
/* Frame rate = 1/time_base, so we set 1/rate, not rate/1 */
c->time_base.num = 1;
c->time_base.den = rate;
#else
c->frame_rate = rate;
c->frame_rate_base = 1;
#endif /* LIBAVCODEC_BUILD >= 4754 */
MOTION_LOG(INF, TYPE_ENCODER, NO_ERRNO, "%s FPS %d",
rate);
if (vbr)
c->flags |= CODEC_FLAG_QSCALE;
/*
* Set codec specific parameters.
* Set intra frame distance in frames depending on codec.
*/
c->gop_size = is_mpeg1 ? 10 : 12;
/* Some formats want stream headers to be separate. */
if (!strcmp(ffmpeg->oc->oformat->name, "mp4") ||
!strcmp(ffmpeg->oc->oformat->name, "mov") ||
!strcmp(ffmpeg->oc->oformat->name, "3gp")) {
c->flags |= CODEC_FLAG_GLOBAL_HEADER;
}
#if defined FF_API_NEW_AVIO
// pass the options to avformat_write_header directly
#else
/* Set the output parameters (must be done even if no parameters). */
if (av_set_parameters(ffmpeg->oc, NULL) < 0) {
MOTION_LOG(ERR, TYPE_ENCODER, NO_ERRNO, "%s: av_set_parameters error:"
" Invalid output format parameters");
ffmpeg_cleanups(ffmpeg);
return NULL;
}
#endif
/* Dump the format settings. This shows how the various streams relate to each other. */
//dump_format(ffmpeg->oc, 0, filename, 1);
/*
* Now that all the parameters are set, we can open the video
* codec and allocate the necessary encode buffers.
*/
codec = avcodec_find_encoder(c->codec_id);
if (!codec) {
MOTION_LOG(ERR, TYPE_ENCODER, NO_ERRNO, "%s: Codec %s not found",
ffmpeg_video_codec);
ffmpeg_cleanups(ffmpeg);
return NULL;
}
/* Set the picture format - need in ffmpeg starting round April-May 2005 */
c->pix_fmt = PIX_FMT_YUV420P;
/* Get a mutex lock. */
pthread_mutex_lock(&global_lock);
/* Open the codec */
#if defined FF_API_NEW_AVIO
ret = avcodec_open2(c, codec, NULL /* options */ );
#else
ret = avcodec_open(c, codec);
#endif
if (ret < 0) {
/* Release the lock. */
pthread_mutex_unlock(&global_lock);
MOTION_LOG(ERR, TYPE_ENCODER, NO_ERRNO, "%s: avcodec_open - could not open codec %s",
ffmpeg_video_codec);
ffmpeg_cleanups(ffmpeg);
return NULL;
}
/* Release the lock. */
pthread_mutex_unlock(&global_lock);
ffmpeg->video_outbuf = NULL;
if (!(ffmpeg->oc->oformat->flags & AVFMT_RAWPICTURE)) {
/*
* Allocate output buffer
* XXX: API change will be done
* ffmpeg->video_outbuf_size = 200000
*/
ffmpeg->video_outbuf_size = ffmpeg->c->width * 512;
ffmpeg->video_outbuf = mymalloc(ffmpeg->video_outbuf_size);
}
/* Allocate the encoded raw picture. */
ffmpeg->picture = avcodec_alloc_frame();
if (!ffmpeg->picture) {
MOTION_LOG(ERR, TYPE_ENCODER, NO_ERRNO, "%s: avcodec_alloc_frame -"
" could not alloc frame");
ffmpeg_cleanups(ffmpeg);
return NULL;
}
/* Set variable bitrate if requested. */
if (ffmpeg->vbr)
ffmpeg->picture->quality = ffmpeg->vbr;
/* Set the frame data. */
ffmpeg->picture->data[0] = y;
ffmpeg->picture->data[1] = u;
ffmpeg->picture->data[2] = v;
ffmpeg->picture->linesize[0] = ffmpeg->c->width;
ffmpeg->picture->linesize[1] = ffmpeg->c->width / 2;
ffmpeg->picture->linesize[2] = ffmpeg->c->width / 2;
/* Open the output file, if needed. */
if (!(ffmpeg->oc->oformat->flags & AVFMT_NOFILE)) {
char file_proto[256];
/*
* Use append file protocol for mpeg1, to get the append behavior from
* url_fopen, but no protocol (=> default) for other codecs.
*/
if (is_mpeg1)
#if defined FF_API_NEW_AVIO
snprintf(file_proto, sizeof(file_proto), "%s", filename);
#else
snprintf(file_proto, sizeof(file_proto), APPEND_PROTO ":%s", filename);
#endif
else
static int netcam_read_rtsp_image(netcam_context_ptr netcam)
{
if (netcam->rtsp == NULL) {
if (rtsp_connect(netcam) < 0) {
return -1;
}
}
AVCodecContext *cc = netcam->rtsp->codec_context;
AVFormatContext *fc = netcam->rtsp->format_context;
netcam_buff_ptr buffer;
/* Point to our working buffer. */
buffer = netcam->receiving;
buffer->used = 0;
AVFrame *frame = avcodec_alloc_frame();
AVPacket packet;
av_init_packet(&packet);
packet.data = NULL;
packet.size = 0;
int size_decoded = 0;
static int usual_size_decoded = 0;
while (size_decoded == 0 && av_read_frame(fc, &packet) >= 0) {
if(packet.stream_index != netcam->rtsp->video_stream_index) {
// not our packet, skip
continue;
}
size_decoded = decode_packet(&packet, buffer, frame, cc);
}
if (size_decoded == 0) {
// something went wrong, end of stream?
MOTION_LOG(ERR, TYPE_NETCAM, SHOW_ERRNO, "%s: invalid frame!");
return -1;
}
if (size_decoded != usual_size_decoded) {
MOTION_LOG(WRN, TYPE_NETCAM, SHOW_ERRNO, "%s: unusual frame size of %d!", size_decoded);
usual_size_decoded = size_decoded;
}
// at this point, we are finished with the packet and frame, so free them.
av_free_packet(&packet);
av_free(frame);
struct timeval curtime;
if (gettimeofday(&curtime, NULL) < 0) {
MOTION_LOG(WRN, TYPE_NETCAM, SHOW_ERRNO, "%s: gettimeofday");
}
netcam->receiving->image_time = curtime;
/*
* Calculate our "running average" time for this netcam's
* frame transmissions (except for the first time).
* Note that the average frame time is held in microseconds.
*/
if (netcam->last_image.tv_sec) {
netcam->av_frame_time = ((9.0 * netcam->av_frame_time) + 1000000.0 *
(curtime.tv_sec - netcam->last_image.tv_sec) +
(curtime.tv_usec- netcam->last_image.tv_usec)) / 10.0;
MOTION_LOG(DBG, TYPE_NETCAM, NO_ERRNO, "%s: Calculated frame time %f",
netcam->av_frame_time);
}
netcam->last_image = curtime;
netcam_buff *xchg;
/*
* read is complete - set the current 'receiving' buffer atomically
* as 'latest', and make the buffer previously in 'latest' become
* the new 'receiving'.
*/
pthread_mutex_lock(&netcam->mutex);
xchg = netcam->latest;
netcam->latest = netcam->receiving;
netcam->receiving = xchg;
netcam->imgcnt++;
/*
* We have a new frame ready. We send a signal so that
* any thread (e.g. the motion main loop) waiting for the
* next frame to become available may proceed.
*/
pthread_cond_signal(&netcam->pic_ready);
pthread_mutex_unlock(&netcam->mutex);
return 0;
}
/**
* ffmpeg_put_frame
* Encodes and writes a video frame using the av_write_frame API. This is
* a helper function for ffmpeg_put_image and ffmpeg_put_other_image.
*
* Returns
* Number of bytes written or -1 if any error happens.
*/
int ffmpeg_put_frame(struct ffmpeg *ffmpeg, AVFrame *pic)
{
int out_size, ret;
#ifdef FFMPEG_AVWRITEFRAME_NEWAPI
AVPacket pkt;
av_init_packet(&pkt); /* Init static structure. */
pkt.stream_index = ffmpeg->video_st->index;
#endif /* FFMPEG_AVWRITEFRAME_NEWAPI */
if (ffmpeg->oc->oformat->flags & AVFMT_RAWPICTURE) {
/* Raw video case. The API will change slightly in the near future for that. */
#ifdef FFMPEG_AVWRITEFRAME_NEWAPI
#if LIBAVCODEC_VERSION_MAJOR < 53
pkt.flags |= PKT_FLAG_KEY;
#else
pkt.flags |= AV_PKT_FLAG_KEY;
#endif
pkt.data = (uint8_t *)pic;
pkt.size = sizeof(AVPicture);
ret = av_write_frame(ffmpeg->oc, &pkt);
#else
ret = av_write_frame(ffmpeg->oc, ffmpeg->video_st->index,
(uint8_t *)pic, sizeof(AVPicture));
#endif /* FFMPEG_AVWRITEFRAME_NEWAPI */
} else {
/* Encodes the image. */
out_size = avcodec_encode_video(AVSTREAM_CODEC_PTR(ffmpeg->video_st),
ffmpeg->video_outbuf,
ffmpeg->video_outbuf_size, pic);
/* If zero size, it means the image was buffered. */
if (out_size != 0) {
/*
* Writes the compressed frame in the media file.
* XXX: in case of B frames, the pts is not yet valid.
*/
#ifdef FFMPEG_AVWRITEFRAME_NEWAPI
pkt.pts = AVSTREAM_CODEC_PTR(ffmpeg->video_st)->coded_frame->pts;
if (AVSTREAM_CODEC_PTR(ffmpeg->video_st)->coded_frame->key_frame)
#if LIBAVCODEC_VERSION_MAJOR < 53
pkt.flags |= PKT_FLAG_KEY;
#else
pkt.flags |= AV_PKT_FLAG_KEY;
#endif
pkt.data = ffmpeg->video_outbuf;
pkt.size = out_size;
ret = av_write_frame(ffmpeg->oc, &pkt);
#else
ret = av_write_frame(ffmpeg->oc, ffmpeg->video_st->index,
ffmpeg->video_outbuf, out_size);
#endif /* FFMPEG_AVWRITEFRAME_NEWAPI */
} else {
ret = 0;
}
}
if (ret != 0) {
MOTION_LOG(ERR, TYPE_ENCODER, SHOW_ERRNO, "%s: Error while writing"
" video frame");
ffmpeg_cleanups(ffmpeg);
return -1;
}
return ret;
}
/**
* get_oformat
* Obtains the output format used for the specified codec. For mpeg4 codecs,
* the format is avi; for mpeg1 codec, the format is mpeg. The filename has
* to be passed, because it gets the appropriate extension appended onto it.
*
* Returns
* AVOutputFormat pointer or NULL if any error happens.
*/
static AVOutputFormat *get_oformat(const char *codec, char *filename)
{
const char *ext;
AVOutputFormat *of = NULL;
/*
* Here, we use guess_format to automatically setup the codec information.
* If we are using msmpeg4, manually set that codec here.
* We also dynamically add the file extension to the filename here. This was
* done to support both mpeg1 and mpeg4 codecs since they have different extensions.
*/
if ((strcmp(codec, TIMELAPSE_CODEC) == 0)
#ifndef FFMPEG_NO_NONSTD_MPEG1
|| (strcmp(codec, "mpeg1") == 0)
#endif
) {
ext = ".mpg";
/*
* We use "mpeg1video" for raw mpeg1 format. Using "mpeg" would
* result in a muxed output file, which isn't appropriate here.
*/
#ifdef GUESS_NO_DEPRECATED
of = guess_format("mpeg1video", NULL, NULL);
#else
of = av_guess_format("mpeg1video", NULL, NULL);
#endif
/* But we want the trailer to be correctly written. */
if (of)
of->write_trailer = mpeg1_write_trailer;
#ifdef FFMPEG_NO_NONSTD_MPEG1
} else if (strcmp(codec, "mpeg1") == 0) {
MOTION_LOG(WRN, TYPE_ENCODER, NO_ERRNO, "%s: *** mpeg1 support for normal"
" videos has been disabled ***");
return NULL;
#endif
} else if (strcmp(codec, "mpeg4") == 0) {
ext = ".avi";
#ifdef GUESS_NO_DEPRECATED
of = guess_format("mpeg1video", NULL, NULL);
#else
of = av_guess_format("avi", NULL, NULL);
#endif
} else if (strcmp(codec, "msmpeg4") == 0) {
ext = ".avi";
#ifdef GUESS_NO_DEPRECATED
of = guess_format("mpeg1video", NULL, NULL);
#else
of = av_guess_format("avi", NULL, NULL);
#endif
/* Manually override the codec id. */
if (of)
of->video_codec = CODEC_ID_MSMPEG4V2;
} else if (strcmp(codec, "swf") == 0) {
ext = ".swf";
#ifdef GUESS_NO_DEPRECATED
of = guess_format("mpeg1video", NULL, NULL);
#else
of = av_guess_format("swf", NULL, NULL);
#endif
} else if (strcmp(codec, "flv") == 0) {
ext = ".flv";
#ifdef GUESS_NO_DEPRECATED
of = guess_format("mpeg1video", NULL, NULL);
#else
of = av_guess_format("flv", NULL, NULL);
#endif
of->video_codec = CODEC_ID_FLV1;
} else if (strcmp(codec, "ffv1") == 0) {
ext = ".avi";
#ifdef GUESS_NO_DEPRECATED
of = guess_format("mpeg1video", NULL, NULL);
#else
of = av_guess_format("avi", NULL, NULL);
#endif
/*
* Use the FFMPEG Lossless Video codec (experimental!).
* Requires strict_std_compliance to be <= -2
*/
if (of)
of->video_codec = CODEC_ID_FFV1;
} else if (strcmp(codec, "mov") == 0) {
ext = ".mov";
#ifdef GUESS_NO_DEPRECATED
of = guess_format("mpeg1video", NULL, NULL);
#else
of = av_guess_format("mov", NULL, NULL);
#endif
}
else if (strcmp (codec, "ogg") == 0)
{
ext = ".ogg";
#ifdef GUESS_NO_DEPRECATED
of = guess_format ("ogg", NULL, NULL);
#else
of = av_guess_format ("ogg", NULL, NULL);
#endif
} else {
MOTION_LOG(ERR, TYPE_ENCODER, NO_ERRNO, "%s: ffmpeg_video_codec option value"
" %s is not supported", codec);
return NULL;
}
if (!of) {
MOTION_LOG(ERR, TYPE_ENCODER, NO_ERRNO, "%s: Could not guess format for %s",
codec);
return NULL;
}
/* The 4 allows for ".avi" or ".mpg" to be appended. */
strncat(filename, ext, 4);
return of;
}
int bktr_start(struct context *cnt)
{
#ifdef HAVE_BKTR
struct config *conf = &cnt->conf;
struct video_dev *dev;
int fd_tuner = -1;
int width, height, capture_method;
unsigned input, norm;
unsigned long frequency;
int fd_device = -1;
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: [%s]",
conf->video_device);
/*
* We use width and height from conf in this function. They will be assigned
* to width and height in imgs here, and cap_width and cap_height in
* rotate_data won't be set until in rotate_init.
* Motion requires that width and height are multiples of 8 so we check for this.
*/
if (conf->width % 8) {
MOTION_LOG(CRT, TYPE_VIDEO, NO_ERRNO, "%s: config image width (%d) is not modulo 8", conf->width);
return -2;
}
if (conf->height % 8) {
MOTION_LOG(CRT, TYPE_VIDEO, NO_ERRNO, "%s: config image height (%d) is not modulo 8", conf->height);
return -2;
}
width = conf->width;
height = conf->height;
input = conf->input;
norm = conf->norm;
frequency = conf->frequency;
capture_method = METEOR_CAP_CONTINOUS;
pthread_mutex_lock(&bktr_mutex);
/*
* Transfer width and height from conf to imgs. The imgs values are the ones
* that is used internally in Motion. That way, setting width and height via
* http remote control won't screw things up.
*/
cnt->imgs.width = width;
cnt->imgs.height = height;
/*
* First we walk through the already discovered video devices to see
* if we have already setup the same device before. If this is the case
* the device is a Round Robin device and we set the basic settings
* and return the file descriptor.
*/
dev = viddevs;
while (dev) {
if (!strcmp(conf->video_device, dev->video_device)) {
int dummy = METEOR_CAP_STOP_CONT;
dev->usage_count++;
cnt->imgs.type = dev->v4l_fmt;
if (ioctl(dev->fd_device, METEORCAPTUR, &dummy) < 0) {
MOTION_LOG(CRT, TYPE_VIDEO, SHOW_ERRNO, "%s Stopping capture");
return -1;
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s Reusing [%s] inputs [%d,%d] Change "
"capture method METEOR_CAP_SINGLE", dev->video_device,
dev->input, conf->input);
dev->capture_method = METEOR_CAP_SINGLE;
switch (cnt->imgs.type) {
case VIDEO_PALETTE_GREY:
cnt->imgs.motionsize = width * height;
cnt->imgs.size = width * height;
break;
case VIDEO_PALETTE_RGB24:
case VIDEO_PALETTE_YUV422:
cnt->imgs.type = VIDEO_PALETTE_YUV420P;
case VIDEO_PALETTE_YUV420P:
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s VIDEO_PALETTE_YUV420P setting"
" imgs.size and imgs.motionsize");
cnt->imgs.motionsize = width * height;
cnt->imgs.size = (width * height * 3) / 2;
break;
}
pthread_mutex_unlock(&bktr_mutex);
return dev->fd_device; // FIXME return fd_tuner ?!
}
dev = dev->next;
}
dev = mymalloc(sizeof(struct video_dev));
fd_device = open(conf->video_device, O_RDWR);
if (fd_device < 0) {
MOTION_LOG(CRT, TYPE_VIDEO, SHOW_ERRNO, "%s: open video device %s",
conf->video_device);
free(dev);
pthread_mutex_unlock(&bktr_mutex);
return -1;
}
/* Only open tuner if conf->tuner_device has set , freq and input is 1. */
if ((conf->tuner_device != NULL) && (frequency > 0) && (input == BKTR_IN_TV)) {
fd_tuner = open(conf->tuner_device, O_RDWR);
if (fd_tuner < 0) {
MOTION_LOG(CRT, TYPE_VIDEO, SHOW_ERRNO, "%s: open tuner device %s",
conf->tuner_device);
free(dev);
pthread_mutex_unlock(&bktr_mutex);
return -1;
}
}
pthread_mutexattr_init(&dev->attr);
pthread_mutex_init(&dev->mutex, &dev->attr);
dev->usage_count = 1;
dev->video_device = conf->video_device;
dev->tuner_device = conf->tuner_device;
dev->fd_device = fd_device;
dev->fd_tuner = fd_tuner;
dev->input = input;
dev->height = height;
dev->width = width;
dev->freq = frequency;
dev->owner = -1;
dev->capture_method = capture_method;
/*
* We set brightness, contrast, saturation and hue = 0 so that they only get
* set if the config is not zero.
*/
dev->brightness = 0;
dev->contrast = 0;
dev->saturation = 0;
dev->hue = 0;
dev->owner = -1;
/* Default palette */
dev->v4l_fmt = VIDEO_PALETTE_YUV420P;
dev->v4l_curbuffer = 0;
dev->v4l_maxbuffer = 1;
if (!bktr_device_init(dev, width, height, input, norm, frequency)) {
close(dev->fd_device);
pthread_mutexattr_destroy(&dev->attr);
pthread_mutex_destroy(&dev->mutex);
free(dev);
pthread_mutex_unlock(&bktr_mutex);
return -1;
}
cnt->imgs.type = dev->v4l_fmt;
switch (cnt->imgs.type) {
case VIDEO_PALETTE_GREY:
cnt->imgs.size = width * height;
cnt->imgs.motionsize = width * height;
break;
case VIDEO_PALETTE_RGB24:
case VIDEO_PALETTE_YUV422:
cnt->imgs.type = VIDEO_PALETTE_YUV420P;
case VIDEO_PALETTE_YUV420P:
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: VIDEO_PALETTE_YUV420P imgs.type");
cnt->imgs.size = (width * height * 3) / 2;
cnt->imgs.motionsize = width * height;
break;
}
/* Insert into linked list */
dev->next = viddevs;
viddevs = dev;
pthread_mutex_unlock(&bktr_mutex);
return fd_device;
#else
if (!cnt) MOTION_LOG(DBG, TYPE_VIDEO, NO_ERRNO, "%s: BKTR is not enabled.");
return -1;
#endif
}
/**
* ffmpeg_put_frame
* Encodes and writes a video frame using the av_write_frame API. This is
* a helper function for ffmpeg_put_image and ffmpeg_put_other_image.
*
* Returns
* Number of bytes written or -1 if any error happens.
*/
int ffmpeg_put_frame(struct ffmpeg *ffmpeg, AVFrame *pic)
{
/**
* Since the logic,return values and conditions changed so
* dramatically between versions, the encoding of the frame
* is 100% blocked based upon Libav/FFMpeg version
*/
#if (LIBAVFORMAT_VERSION_MAJOR >= 55) || ((LIBAVFORMAT_VERSION_MAJOR == 54) && (LIBAVFORMAT_VERSION_MINOR > 6))
int retcd;
int got_packet_ptr;
AVPacket pkt;
char errstr[128];
av_init_packet(&pkt); /* Init static structure. */
if (ffmpeg->oc->oformat->flags & AVFMT_RAWPICTURE) {
pkt.stream_index = ffmpeg->video_st->index;
pkt.flags |= AV_PKT_FLAG_KEY;
pkt.data = (uint8_t *)pic;
pkt.size = sizeof(AVPicture);
} else {
pkt.data = NULL;
pkt.size = 0;
retcd = avcodec_encode_video2(AVSTREAM_CODEC_PTR(ffmpeg->video_st),
&pkt, pic, &got_packet_ptr);
if (retcd < 0 ){
av_strerror(retcd, errstr, sizeof(errstr));
MOTION_LOG(ERR, TYPE_ENCODER, SHOW_ERRNO, "%s: Error encoding video:%s",errstr);
//Packet is freed upon failure of encoding
return -1;
}
if (got_packet_ptr == 0){
//Buffered packet. Throw special return code
av_free_packet(&pkt);
return -2;
}
if (pkt.pts != AV_NOPTS_VALUE)
pkt.pts = av_rescale_q(pkt.pts,
ffmpeg->video_st->codec->time_base,
ffmpeg->video_st->time_base);
if (pkt.dts != AV_NOPTS_VALUE)
pkt.dts = av_rescale_q(pkt.dts,
ffmpeg->video_st->codec->time_base,
ffmpeg->video_st->time_base);
}
if (ffmpeg->tlapse == TIMELAPSE_APPEND) {
retcd = timelapse_append(ffmpeg, pkt);
} else {
retcd = av_write_frame(ffmpeg->oc, &pkt);
}
av_free_packet(&pkt);
if (retcd != 0) {
MOTION_LOG(ERR, TYPE_ENCODER, SHOW_ERRNO, "%s: Error while writing video frame");
ffmpeg_cleanups(ffmpeg);
return -1;
}
return retcd;
#else // Old versions of Libav/FFmpeg
int retcd;
AVPacket pkt;
av_init_packet(&pkt); /* Init static structure. */
pkt.stream_index = ffmpeg->video_st->index;
if (ffmpeg->oc->oformat->flags & AVFMT_RAWPICTURE) {
// Raw video case.
pkt.size = sizeof(AVPicture);
pkt.data = (uint8_t *)pic;
pkt.flags |= AV_PKT_FLAG_KEY;
} else {
retcd = avcodec_encode_video(AVSTREAM_CODEC_PTR(ffmpeg->video_st),
ffmpeg->video_outbuf,
ffmpeg->video_outbuf_size, pic);
if (retcd < 0) {
MOTION_LOG(ERR, TYPE_ENCODER, SHOW_ERRNO, "%s: Error encoding video");
av_free_packet(&pkt);
return -1;
}
if (retcd == 0 ){
// No bytes encoded => buffered=>special handling
av_free_packet(&pkt);
return -2;
}
pkt.size = retcd;
pkt.data = ffmpeg->video_outbuf;
pkt.pts = AVSTREAM_CODEC_PTR(ffmpeg->video_st)->coded_frame->pts;
if (AVSTREAM_CODEC_PTR(ffmpeg->video_st)->coded_frame->key_frame)
pkt.flags |= AV_PKT_FLAG_KEY;
}
if (ffmpeg->tlapse == TIMELAPSE_APPEND) {
retcd = timelapse_append(ffmpeg, pkt);
} else {
retcd = av_write_frame(ffmpeg->oc, &pkt);
}
if (retcd != 0) {
MOTION_LOG(ERR, TYPE_ENCODER, SHOW_ERRNO,
"%s: Error while writing video frame");
ffmpeg_cleanups(ffmpeg);
return -1;
}
return retcd;
#endif
}
/**
* rotate_init
*
* Initializes rotation data - allocates memory and determines which function
* to use for 180 degrees rotation.
*
* Parameters:
*
* cnt - the current thread's context structure
*
* Returns: nothing
*/
void rotate_init(struct context *cnt)
{
int size;
/* Make sure temp_buf isn't freed if it hasn't been allocated. */
cnt->rotate_data.temp_buf = NULL;
/*
* Assign the value in conf.rotate_deg to rotate_data.degrees. This way,
* we have a value that is safe from changes caused by motion-control.
*/
if ((cnt->conf.rotate_deg % 90) > 0) {
MOTION_LOG(WRN, TYPE_ALL, NO_ERRNO, "%s: Config option \"rotate\" not a multiple of 90: %d",
cnt->conf.rotate_deg);
cnt->conf.rotate_deg = 0; /* Disable rotation. */
cnt->rotate_data.degrees = 0; /* Force return below. */
} else {
cnt->rotate_data.degrees = cnt->conf.rotate_deg % 360; /* Range: 0..359 */
}
/*
* Upon entrance to this function, imgs.width and imgs.height contain the
* capture dimensions (as set in the configuration file, or read from a
* netcam source).
*
* If rotating 90 or 270 degrees, the capture dimensions and output dimensions
* are not the same. Capture dimensions will be contained in cap_width and
* cap_height in cnt->rotate_data, while output dimensions will be contained
* in imgs.width and imgs.height.
*/
/* 1. Transfer capture dimensions into cap_width and cap_height. */
cnt->rotate_data.cap_width = cnt->imgs.width;
cnt->rotate_data.cap_height = cnt->imgs.height;
if ((cnt->rotate_data.degrees == 90) || (cnt->rotate_data.degrees == 270)) {
/* 2. "Swap" imgs.width and imgs.height. */
cnt->imgs.width = cnt->rotate_data.cap_height;
cnt->imgs.height = cnt->rotate_data.cap_width;
}
/*
* If we're not rotating, let's exit once we have setup the capture dimensions
* and output dimensions properly.
*/
if (cnt->rotate_data.degrees == 0)
return;
switch (cnt->imgs.type) {
case VIDEO_PALETTE_YUV420P:
/*
* For YUV 4:2:0 planar, the memory block used for 90/270 degrees
* rotation needs to be width x height x 1.5 bytes large.
*/
size = cnt->imgs.width * cnt->imgs.height * 3 / 2;
break;
case VIDEO_PALETTE_GREY:
/*
* For greyscale, the memory block used for 90/270 degrees rotation
* needs to be width x height bytes large.
*/
size = cnt->imgs.width * cnt->imgs.height;
break;
default:
cnt->rotate_data.degrees = 0;
MOTION_LOG(WRN, TYPE_ALL, NO_ERRNO, "%s: Unsupported palette (%d), rotation is disabled",
cnt->imgs.type);
return;
}
/*
* Allocate memory if rotating 90 or 270 degrees, because those rotations
* cannot be performed in-place (they can, but it would be too slow).
*/
if ((cnt->rotate_data.degrees == 90) || (cnt->rotate_data.degrees == 270))
cnt->rotate_data.temp_buf = mymalloc(size);
}
/*
* jpeg_data: Buffer with jpeg data to decode
* len: Length of buffer
* itype: 0: Not interlaced
* 1: Interlaced, Top field first
* 2: Interlaced, Bottom field first
* ctype Chroma format for decompression.
* Currently only Y4M_CHROMA_{420JPEG,422} are available
* returns:
* -1 on fatal error
* 0 on success
* 1 if jpeg lib threw a "corrupt jpeg data" warning.
* in this case, "a damaged output image is likely."
*
*/
int decode_jpeg_raw (unsigned char *jpeg_data, int len,
int itype, int ctype, unsigned int width,
unsigned int height, unsigned char *raw0,
unsigned char *raw1, unsigned char *raw2)
{
int numfields, hsf[3], field, yl, yc;
int i, xsl, xsc, xs, hdown;
unsigned int x, y = 0, vsf[3], xd;
JSAMPROW row0[16] = { buf0[0], buf0[1], buf0[2], buf0[3],
buf0[4], buf0[5], buf0[6], buf0[7],
buf0[8], buf0[9], buf0[10], buf0[11],
buf0[12], buf0[13], buf0[14], buf0[15]};
JSAMPROW row1[8] = { buf1[0], buf1[1], buf1[2], buf1[3],
buf1[4], buf1[5], buf1[6], buf1[7]};
JSAMPROW row2[16] = { buf2[0], buf2[1], buf2[2], buf2[3],
buf2[4], buf2[5], buf2[6], buf2[7]};
JSAMPROW row1_444[16], row2_444[16];
JSAMPARRAY scanarray[3] = { row0, row1, row2};
struct jpeg_decompress_struct dinfo;
struct my_error_mgr jerr;
/* We set up the normal JPEG error routines, then override error_exit. */
dinfo.err = jpeg_std_error (&jerr.pub);
jerr.pub.error_exit = my_error_exit;
/* Also hook the emit_message routine to note corrupt-data warnings. */
jerr.original_emit_message = jerr.pub.emit_message;
jerr.pub.emit_message = my_emit_message;
jerr.warning_seen = 0;
/* Establish the setjmp return context for my_error_exit to use. */
if (setjmp (jerr.setjmp_buffer)) {
/* If we get here, the JPEG code has signaled an error. */
jpeg_destroy_decompress (&dinfo);
return 1;
}
jpeg_create_decompress (&dinfo);
jpeg_buffer_src (&dinfo, jpeg_data, len);
/*
* Read header, make some checks and try to figure out what the
* user really wants.
*/
jpeg_read_header (&dinfo, TRUE);
dinfo.raw_data_out = TRUE;
#if JPEG_LIB_VERSION >= 70
dinfo.do_fancy_upsampling = FALSE;
#endif
dinfo.out_color_space = JCS_YCbCr;
dinfo.dct_method = JDCT_IFAST;
guarantee_huff_tables(&dinfo);
jpeg_start_decompress (&dinfo);
if (dinfo.output_components != 3) {
MOTION_LOG(ERR, TYPE_ALL, NO_ERRNO, "%s: Output components of JPEG image"
" = %d, must be 3", dinfo.output_components);
goto ERR_EXIT;
}
for (i = 0; i < 3; i++) {
hsf[i] = dinfo.comp_info[i].h_samp_factor;
vsf[i] = dinfo.comp_info[i].v_samp_factor;
}
if ((hsf[0] != 2 && hsf[0] != 1) || hsf[1] != 1 || hsf[2] != 1 ||
(vsf[0] != 1 && vsf[0] != 2) || vsf[1] != 1 || vsf[2] != 1) {
MOTION_LOG(ERR, TYPE_ALL, NO_ERRNO, "%s: Unsupported sampling factors,"
" hsf=(%d, %d, %d) vsf=(%d, %d, %d) !", hsf[0], hsf[1],
hsf[2], vsf[0], vsf[1], vsf[2]);
goto ERR_EXIT;
}
if (hsf[0] == 1) {
if (height % 8 != 0) {
MOTION_LOG(ERR, TYPE_ALL, NO_ERRNO, "%s: YUV 4:4:4 sampling, but image"
" height %d not dividable by 8 !", height);
goto ERR_EXIT;
}
for (y = 0; y < 16; y++) { // Allocate a special buffer for the extra sampling depth.
row1_444[y] = (unsigned char *)malloc(dinfo.output_width * sizeof(char));
row2_444[y] = (unsigned char *)malloc(dinfo.output_width * sizeof(char));
}
scanarray[1] = row1_444;
scanarray[2] = row2_444;
}
/* Height match image height or be exact twice the image height. */
if (dinfo.output_height == height) {
numfields = 1;
} else if (2 * dinfo.output_height == height) {
numfields = 2;
} else {
MOTION_LOG(ERR, TYPE_ALL, NO_ERRNO, "%s: Read JPEG: requested height = %d, "
"height of image = %d", height, dinfo.output_height);
goto ERR_EXIT;
}
/* Width is more flexible */
if (dinfo.output_width > MAX_LUMA_WIDTH) {
MOTION_LOG(ERR, TYPE_ALL, NO_ERRNO, "%s: Image width of %d exceeds max",
dinfo.output_width);
goto ERR_EXIT;
}
if (width < 2 * dinfo.output_width / 3) {
/* Downsample 2:1 */
hdown = 1;
if (2 * width < dinfo.output_width)
xsl = (dinfo.output_width - 2 * width) / 2;
else
xsl = 0;
} else if (width == 2 * dinfo.output_width / 3) {
/* Special case of 3:2 downsampling */
hdown = 2;
xsl = 0;
} else {
/* No downsampling */
hdown = 0;
if (width < dinfo.output_width)
xsl = (dinfo.output_width - width) / 2;
else
xsl = 0;
}
/* Make xsl even, calculate xsc */
xsl = xsl & ~1;
xsc = xsl / 2;
yl = yc = 0;
for (field = 0; field < numfields; field++) {
if (field > 0) {
jpeg_read_header (&dinfo, TRUE);
dinfo.raw_data_out = TRUE;
#if JPEG_LIB_VERSION >= 70
dinfo.do_fancy_upsampling = FALSE;
#endif
dinfo.out_color_space = JCS_YCbCr;
dinfo.dct_method = JDCT_IFAST;
jpeg_start_decompress (&dinfo);
}
if (numfields == 2) {
switch (itype) {
case Y4M_ILACE_TOP_FIRST:
yl = yc = field;
break;
case Y4M_ILACE_BOTTOM_FIRST:
yl = yc = (1 - field);
break;
default:
MOTION_LOG(ERR, TYPE_ALL, NO_ERRNO, "%s: Input is interlaced but"
" no interlacing set");
goto ERR_EXIT;
}
} else {
yl = yc = 0;
}
while (dinfo.output_scanline < dinfo.output_height) {
/* Read raw data */
jpeg_read_raw_data (&dinfo, scanarray, 8 * vsf[0]);
for (y = 0; y < 8 * vsf[0]; yl += numfields, y++) {
xd = yl * width;
xs = xsl;
if (hdown == 0) {
for (x = 0; x < width; x++)
raw0[xd++] = row0[y][xs++];
} else if (hdown == 1) {
for (x = 0; x < width; x++, xs += 2)
raw0[xd++] = (row0[y][xs] + row0[y][xs + 1]) >> 1;
} else {
for (x = 0; x < width / 2; x++, xd += 2, xs += 3) {
raw0[xd] = (2 * row0[y][xs] + row0[y][xs + 1]) / 3;
raw0[xd + 1] = (2 * row0[y][xs + 2] + row0[y][xs + 1]) / 3;
}
}
}
/* Horizontal downsampling of chroma */
for (y = 0; y < 8; y++) {
xs = xsc;
if (hsf[0] == 1)
for (x = 0; x < width / 2; x++, xs++) {
row1[y][xs] = (row1_444[y][2*x] + row1_444[y][2*x + 1]) >> 1;
row2[y][xs] = (row2_444[y][2*x] + row2_444[y][2*x + 1]) >> 1;
}
xs = xsc;
if (hdown == 0) {
for (x = 0; x < width / 2; x++, xs++) {
chr1[y][x] = row1[y][xs];
chr2[y][x] = row2[y][xs];
}
} else if (hdown == 1) {
for (x = 0; x < width / 2; x++, xs += 2) {
chr1[y][x] = (row1[y][xs] + row1[y][xs + 1]) >> 1;
chr2[y][x] = (row2[y][xs] + row2[y][xs + 1]) >> 1;
}
} else {
for (x = 0; x < width / 2; x += 2, xs += 3) {
chr1[y][x] = (2 * row1[y][xs] + row1[y][xs + 1]) / 3;
chr1[y][x + 1] = (2 * row1[y][xs + 2] + row1[y][xs + 1]) / 3;
chr2[y][x] = (2 * row2[y][xs] + row2[y][xs + 1]) / 3;
chr2[y][x + 1] = (2 * row2[y][xs + 2] + row2[y][xs + 1]) / 3;
}
}
}
/* Vertical resampling of chroma */
switch (ctype) {
case Y4M_CHROMA_422:
if (vsf[0] == 1) {
/* Just copy */
for (y = 0; y < 8 /*&& yc < height */; y++, yc += numfields) {
xd = yc * width / 2;
for (x = 0; x < width / 2; x++, xd++) {
raw1[xd] = chr1[y][x];
raw2[xd] = chr2[y][x];
}
}
} else {
/* upsample */
for (y = 0; y < 8 /*&& yc < height */; y++) {
xd = yc * width / 2;
for (x = 0; x < width / 2; x++, xd++) {
raw1[xd] = chr1[y][x];
raw2[xd] = chr2[y][x];
}
yc += numfields;
xd = yc * width / 2;
for (x = 0; x < width / 2; x++, xd++) {
raw1[xd] = chr1[y][x];
raw2[xd] = chr2[y][x];
}
yc += numfields;
}
}
break;
default:
/*
* Should be case Y4M_CHROMA_420JPEG: but use default: for compatibility. Some
* pass things like '420' in with the expectation that anything other than
* Y4M_CHROMA_422 will default to 420JPEG.
*/
if (vsf[0] == 1) {
/* Really downsample */
for (y = 0; y < 8 /*&& yc < height/2*/; y += 2, yc += numfields) {
xd = yc * width / 2;
for (x = 0; x < width / 2; x++, xd++) {
assert(xd < (width * height / 4));
raw1[xd] = (chr1[y][x] + chr1[y + 1][x]) >> 1;
raw2[xd] = (chr2[y][x] + chr2[y + 1][x]) >> 1;
}
}
} else {
/* Just copy */
for (y = 0; y < 8 /* && yc < height / 2 */; y++, yc += numfields) {
xd = yc * width / 2;
for (x = 0; x < width / 2; x++, xd++) {
raw1[xd] = chr1[y][x];
raw2[xd] = chr2[y][x];
}
}
}
break;
}
/**
* v4l2_select_input
*/
static int v4l2_select_input(struct config *conf, struct video_dev *viddev,
src_v4l2_t * vid_source, int in, int norm,
unsigned long freq_, int tuner_number ATTRIBUTE_UNUSED)
{
struct v4l2_input input;
struct v4l2_standard standard;
v4l2_std_id std_id;
/* Set the input. */
memset(&input, 0, sizeof (input));
if (in == IN_DEFAULT)
input.index = IN_TV;
else input.index = in;
if (xioctl(vid_source->fd, VIDIOC_ENUMINPUT, &input) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: Unable to query input %d."
" VIDIOC_ENUMINPUT, if you use a WEBCAM change input value in conf by -1",
input.index);
return -1;
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: name = \"%s\", type 0x%08X,"
" status %08x", input.name, input.type, input.status);
if (input.type & V4L2_INPUT_TYPE_TUNER)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - TUNER");
if (input.type & V4L2_INPUT_TYPE_CAMERA)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - CAMERA");
if (xioctl(vid_source->fd, VIDIOC_S_INPUT, &input.index) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: Error selecting input %d"
" VIDIOC_S_INPUT", input.index);
return -1;
}
viddev->input = conf->input = in;
/*
* Set video standard usually webcams doesn't support the ioctl or
* return V4L2_STD_UNKNOWN
*/
if (xioctl(vid_source->fd, VIDIOC_G_STD, &std_id) == -1) {
MOTION_LOG(WRN, TYPE_VIDEO, NO_ERRNO, "%s: Device doesn't support VIDIOC_G_STD");
norm = std_id = 0; // V4L2_STD_UNKNOWN = 0
}
if (std_id) {
memset(&standard, 0, sizeof(standard));
standard.index = 0;
while (xioctl(vid_source->fd, VIDIOC_ENUMSTD, &standard) == 0) {
if (standard.id & std_id)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - video standard %s",
standard.name);
standard.index++;
}
switch (norm) {
case 1:
std_id = V4L2_STD_NTSC;
break;
case 2:
std_id = V4L2_STD_SECAM;
break;
default:
std_id = V4L2_STD_PAL;
}
if (xioctl(vid_source->fd, VIDIOC_S_STD, &std_id) == -1)
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: Error selecting standard"
" method %d VIDIOC_S_STD", (int)std_id);
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: Set standard method %d",
(int)std_id);
}
viddev->norm = conf->norm = norm;
/* If this input is attached to a tuner, set the frequency. */
if (input.type & V4L2_INPUT_TYPE_TUNER) {
struct v4l2_tuner tuner;
struct v4l2_frequency freq;
/* Query the tuners capabilities. */
memset(&tuner, 0, sizeof(struct v4l2_tuner));
tuner.index = input.tuner;
if (xioctl(vid_source->fd, VIDIOC_G_TUNER, &tuner) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: tuner %d VIDIOC_G_TUNER",
tuner.index);
return 0;
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: Set tuner %d",
tuner.index);
/* Set the frequency. */
memset(&freq, 0, sizeof(struct v4l2_frequency));
freq.tuner = input.tuner;
freq.type = V4L2_TUNER_ANALOG_TV;
freq.frequency = (freq_ / 1000) * 16;
if (xioctl(vid_source->fd, VIDIOC_S_FREQUENCY, &freq) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: freq %ul VIDIOC_S_FREQUENCY",
freq.frequency);
return 0;
}
viddev->freq = conf->frequency = freq_;
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: Set Frequency to %ul",
freq.frequency);
} else {
viddev->freq = conf->frequency = 0;
}
return 0;
}
/**
* v4l_open_vidpipe
*
*/
static int v4l_open_vidpipe(void)
{
int pipe_fd = -1;
char pipepath[255];
char buffer[255];
char *major;
char *minor;
struct utsname uts;
if (uname(&uts) < 0) {
MOTION_LOG(CRT, TYPE_VIDEO, SHOW_ERRNO, "%s: Unable to execute uname");
return -1;
}
major = strtok(uts.release, ".");
minor = strtok(NULL, ".");
if ((major == NULL) || (minor == NULL) || (strcmp(major, "2"))) {
MOTION_LOG(CRT, TYPE_VIDEO, SHOW_ERRNO, "%s: Unable to decipher OS version");
return -1;
}
if (strcmp(minor, "5") < 0) {
FILE *vloopbacks;
char *loop;
char *input;
char *istatus;
char *output;
char *ostatus;
vloopbacks = fopen("/proc/video/vloopback/vloopbacks", "r");
if (!vloopbacks) {
MOTION_LOG(CRT, TYPE_VIDEO, SHOW_ERRNO, "%s: Failed to open "
"'/proc/video/vloopback/vloopbacks'");
return -1;
}
/* Read vloopback version*/
if (!fgets(buffer, sizeof(buffer), vloopbacks)) {
MOTION_LOG(CRT, TYPE_VIDEO, SHOW_ERRNO, "%s: Unable to read vloopback version");
return -1;
}
fprintf(stderr, "\t%s", buffer);
/* Read explanation line */
if (!fgets(buffer, sizeof(buffer), vloopbacks)) {
MOTION_LOG(CRT, TYPE_VIDEO, SHOW_ERRNO, "%s: Unable to read vloopback"
" explanation line");
return -1;
}
while (fgets(buffer, sizeof(buffer), vloopbacks)) {
if (strlen(buffer) > 1) {
buffer[strlen(buffer)-1] = 0;
loop = strtok(buffer, "\t");
input = strtok(NULL, "\t");
istatus = strtok(NULL, "\t");
output = strtok(NULL, "\t");
ostatus = strtok(NULL, "\t");
if (istatus[0] == '-') {
snprintf(pipepath, sizeof(pipepath), "/dev/%s", input);
pipe_fd = open(pipepath, O_RDWR);
if (pipe_fd >= 0) {
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: \tInput: /dev/%s "
"\tOutput: /dev/%s", input, output);
break;
}
}
}
}
myfclose(vloopbacks);
} else {
DIR *dir;
struct dirent *dirp;
const char prefix[] = "/sys/class/video4linux/";
char *ptr, *io;
int fd;
int low = 9999;
int tfd;
int tnum;
if ((dir = opendir(prefix)) == NULL) {
MOTION_LOG(CRT, TYPE_VIDEO, SHOW_ERRNO, "%s: Failed to open '%s'",
prefix);
return -1;
}
while ((dirp = readdir(dir)) != NULL) {
if (!strncmp(dirp->d_name, "video", 5)) {
strncpy(buffer, prefix, sizeof(buffer));
strncat(buffer, dirp->d_name, sizeof(buffer) - strlen(buffer));
strncat(buffer, "/name", sizeof(buffer) - strlen(buffer));
if ((fd = open(buffer, O_RDONLY)) >= 0) {
if ((read(fd, buffer, sizeof(buffer)-1)) < 0) {
close(fd);
continue;
}
ptr = strtok(buffer, " ");
if (strcmp(ptr, "Video")) {
close(fd);
continue;
}
major = strtok(NULL, " ");
minor = strtok(NULL, " ");
io = strtok(NULL, " \n");
if (strcmp(major, "loopback") || strcmp(io, "input")) {
close(fd);
continue;
}
if ((ptr = strtok(buffer, " ")) == NULL) {
close(fd);
continue;
}
tnum = atoi(minor);
if (tnum < low) {
mystrcpy(buffer, "/dev/");
strncat(buffer, dirp->d_name, sizeof(buffer) - strlen(buffer));
if ((tfd = open(buffer, O_RDWR)) >= 0) {
strncpy(pipepath, buffer, sizeof(pipepath));
if (pipe_fd >= 0)
close(pipe_fd);
pipe_fd = tfd;
low = tnum;
}
}
close(fd);
}
}
}
closedir(dir);
if (pipe_fd >= 0)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: Opened %s as input",
pipepath);
}
return pipe_fd;
}
/**
* v4l2_get_capability
*/
static int v4l2_get_capability(src_v4l2_t * vid_source)
{
if (xioctl(vid_source->fd, VIDIOC_QUERYCAP, &vid_source->cap) < 0) {
MOTION_LOG(ERR, TYPE_VIDEO, NO_ERRNO, "%s: Not a V4L2 device?");
return -1;
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: \n------------------------\n"
"cap.driver: \"%s\"\n"
"cap.card: \"%s\"\n"
"cap.bus_info: \"%s\"\n"
"cap.capabilities=0x%08X\n------------------------",
vid_source->cap.driver, vid_source->cap.card, vid_source->cap.bus_info,
vid_source->cap.capabilities);
if (vid_source->cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - VIDEO_CAPTURE");
if (vid_source->cap.capabilities & V4L2_CAP_VIDEO_OUTPUT)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - VIDEO_OUTPUT");
if (vid_source->cap.capabilities & V4L2_CAP_VIDEO_OVERLAY)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - VIDEO_OVERLAY");
if (vid_source->cap.capabilities & V4L2_CAP_VBI_CAPTURE)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - VBI_CAPTURE");
if (vid_source->cap.capabilities & V4L2_CAP_VBI_OUTPUT)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - VBI_OUTPUT");
if (vid_source->cap.capabilities & V4L2_CAP_RDS_CAPTURE)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - RDS_CAPTURE");
if (vid_source->cap.capabilities & V4L2_CAP_TUNER)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - TUNER");
if (vid_source->cap.capabilities & V4L2_CAP_AUDIO)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - AUDIO");
if (vid_source->cap.capabilities & V4L2_CAP_READWRITE)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - READWRITE");
if (vid_source->cap.capabilities & V4L2_CAP_ASYNCIO)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - ASYNCIO");
if (vid_source->cap.capabilities & V4L2_CAP_STREAMING)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - STREAMING");
if (vid_source->cap.capabilities & V4L2_CAP_TIMEPERFRAME)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: - TIMEPERFRAME");
if (!(vid_source->cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) {
MOTION_LOG(ERR, TYPE_VIDEO, NO_ERRNO, "%s: Device does not support capturing.");
return -1;
}
return 0;
}
/**
* vid_close
*
* vid_close is called from motion.c when a Motion thread is stopped or restarted.
*/
void vid_close(struct context *cnt)
{
#ifndef WITHOUT_V4L
struct video_dev *dev = viddevs;
struct video_dev *prev = NULL;
#endif
/* Cleanup the netcam part */
if (cnt->netcam) {
netcam_cleanup(cnt->netcam, 0);
cnt->netcam = NULL;
return;
}
#ifndef WITHOUT_V4L
/* Cleanup the v4l part */
pthread_mutex_lock(&vid_mutex);
while (dev) {
if (dev->fd_bktr == cnt->video_dev)
break;
prev = dev;
dev = dev->next;
}
pthread_mutex_unlock(&vid_mutex);
/* Set it as closed in thread context. */
cnt->video_dev = -1;
if (dev == NULL) {
MOTION_LOG(CRT, TYPE_VIDEO, NO_ERRNO, "%s: Unable to find video device");
return;
}
if (--dev->usage_count == 0) {
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: Closing video device %s",
dev->video_device);
if (dev->fd_tuner > 0)
close(dev->fd_tuner);
if (dev->fd_bktr > 0) {
if (dev->capture_method == METEOR_CAP_CONTINOUS) {
dev->fd_tuner = METEOR_CAP_STOP_CONT;
ioctl(dev->fd_bktr, METEORCAPTUR, &dev->fd_tuner);
}
close(dev->fd_bktr);
dev->fd_tuner = -1;
}
munmap(viddevs->v4l_buffers[0], viddevs->v4l_bufsize);
viddevs->v4l_buffers[0] = MAP_FAILED;
dev->fd_bktr = -1;
pthread_mutex_lock(&vid_mutex);
/* Remove from list */
if (prev == NULL)
viddevs = dev->next;
else
prev->next = dev->next;
pthread_mutex_unlock(&vid_mutex);
pthread_mutexattr_destroy(&dev->attr);
pthread_mutex_destroy(&dev->mutex);
free(dev);
} else {
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: Still %d users of video device %s, "
"so we don't close it now", dev->usage_count,
dev->video_device);
/*
* There is still at least one thread using this device
* If we own it, release it.
*/
if (dev->owner == cnt->threadnr) {
dev->frames = 0;
dev->owner = -1;
pthread_mutex_unlock(&dev->mutex);
}
}
#endif /* !WITHOUT_V4L */
}
/*******************************************************************************************
Video capture routines
- set input
- setup_pixelformat
- set_geometry
- set_brightness
- set_chroma
- set_contrast
- set_channelset
- set_channel
- set_capture_mode
*/
static unsigned char *v4l_start(struct video_dev *viddev, int width, int height,
unsigned input, unsigned norm, unsigned long freq)
{
int dev_bktr = viddev->fd_bktr;
struct sigaction act, old;
//int dev_tunner = viddev->fd_tuner;
/* to ensure that all device will be support the capture mode
_TODO_ : Autodected the best capture mode .
*/
int dummy = 1;
// int pixelformat = BSD_VIDFMT_I420;
void *map;
/* If we have choose the tuner is needed to setup the frequency. */
if ((viddev->tuner_device != NULL) && (input == IN_TV)) {
if (!freq) {
MOTION_LOG(WRN, TYPE_VIDEO, NO_ERRNO, "%s: Not valid Frequency [%lu] for "
"Source input [%i]", freq, input);
return NULL;
} else if (set_freq(viddev, freq) == -1) {
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: Frequency [%lu] Source input [%i]",
freq, input);
return NULL;
}
}
/* FIXME if we set as input tuner , we need to set option for tuner not for bktr */
if ((dummy = set_input(viddev, input)) == -1) {
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: set input [%d]", input);
return NULL;
}
viddev->input = dummy;
if ((dummy = set_input_format(viddev, norm)) == -1) {
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: set input format [%d]",
norm);
return NULL;
}
viddev->norm = dummy;
if (set_geometry(viddev, width, height) == -1) {
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: set geometry [%d]x[%d]",
width, height);
return NULL;
}
/*
if (ioctl(dev_bktr, METEORSACTPIXFMT, &pixelformat) < 0) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: set encoding method BSD_VIDFMT_I420");
return NULL;
}
NEEDED !? FIXME
if (setup_pixelformat(viddev) == -1)
return NULL;
*/
if (freq) {
MOTION_LOG(WRN, TYPE_VIDEO, NO_ERRNO, "%s: Frequency set (no implemented yet");
/*
TODO missing implementation
set_channelset(viddev);
set_channel(viddev);
if (set_freq (viddev, freq) == -1)
return NULL;
*/
}
/*
* Set capture mode and capture buffers
* That is the buffer size for capture images ,
* so is dependent of color space of input format / FIXME
*/
viddev->v4l_bufsize = (((width * height * 3 / 2)) * sizeof(unsigned char));
viddev->v4l_fmt = VIDEO_PALETTE_YUV420P;
map = mmap((caddr_t)0, viddev->v4l_bufsize, PROT_READ|PROT_WRITE, MAP_SHARED,
dev_bktr, (off_t)0);
if (map == MAP_FAILED) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: mmap failed");
return NULL;
}
/* FIXME double buffer */
if (0) {
viddev->v4l_maxbuffer = 2;
viddev->v4l_buffers[0] = map;
viddev->v4l_buffers[1] = (unsigned char *)map + 0; /* 0 is not valid just a test */
//viddev->v4l_buffers[1] = map+vid_buf.offsets[1];
} else {
viddev->v4l_buffers[0] = map;
viddev->v4l_maxbuffer = 1;
}
viddev->v4l_curbuffer = 0;
/* Clear the buffer */
if (ioctl(dev_bktr, BT848SCBUF, &dummy) < 0) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: BT848SCBUF");
return NULL;
}
/* Signal handler to know when data is ready to be read() */
memset(&act, 0, sizeof(act));
sigemptyset(&act.sa_mask);
act.sa_handler = catchsignal;
sigaction(SIGUSR2, &act, &old);
dummy = SIGUSR2;
//viddev->capture_method = METEOR_CAP_CONTINOUS;
//viddev->capture_method = METEOR_CAP_SINGLE;
if ((viddev->capture_method == METEOR_CAP_CONTINOUS) &&
(ioctl(dev_bktr, METEORSSIGNAL, &dummy) < 0)) {
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: METEORSSIGNAL");
viddev->capture_method = METEOR_CAP_SINGLE;
if (ioctl(dev_bktr, METEORCAPTUR, &viddev->capture_method) < 0) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: METEORCAPTUR using single method "
"Error capturing");
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: METEORCAPTUR using single method "
"Error capturing");
}
} else {
if (ioctl(dev_bktr, METEORCAPTUR, &viddev->capture_method) < 0) {
viddev->capture_method = METEOR_CAP_SINGLE;
if (ioctl(dev_bktr, METEORCAPTUR, &viddev->capture_method) < 0) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "%s: METEORCAPTUR using single method "
"Error capturing");
}
}
}
if (viddev->capture_method == METEOR_CAP_CONTINOUS)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: METEORCAPTUR METEOR_CAP_CONTINOUS");
else
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: METEORCAPTUR METEOR_CAP_SINGLE");
// settle , sleep(1) replaced
SLEEP(1, 0);
/* FIXME */
switch (viddev->v4l_fmt) {
case VIDEO_PALETTE_YUV420P:
viddev->v4l_bufsize = (width * height * 3) / 2;
break;
case VIDEO_PALETTE_YUV422:
viddev->v4l_bufsize = (width * height * 2);
break;
case VIDEO_PALETTE_RGB24:
viddev->v4l_bufsize = (width * height * 3);
break;
case VIDEO_PALETTE_GREY:
viddev->v4l_bufsize = width * height;
break;
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: HUE [%d]",
get_hue(dev_bktr, &dummy));
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: SATURATION [%d]",
get_saturation(dev_bktr, &dummy));
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: BRIGHTNESS [%d]",
get_brightness(dev_bktr, &dummy));
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%s: CONTRAST [%d]",
get_contrast(dev_bktr, &dummy));
return map;
}
/**
* netcam_init_jpeg
*
* Initialises the JPEG library prior to doing a
* decompression.
*
* Parameters:
* netcam pointer to netcam_context.
* cinfo pointer to JPEG decompression context.
*
* Returns: Error code.
*/
static int netcam_init_jpeg(netcam_context_ptr netcam, j_decompress_ptr cinfo)
{
netcam_buff_ptr buff;
/*
* First we check whether a new image has arrived. If not, we
* setup to wait for 1/2 a frame time. This will (hopefully)
* help in synchronizing the camera frames with the motion main
* loop.
*/
pthread_mutex_lock(&netcam->mutex);
if (netcam->imgcnt_last == netcam->imgcnt) { /* Need to wait */
struct timespec waittime;
struct timeval curtime;
int retcode;
/*
* We calculate the delay time (representing the desired frame
* rate). This delay time is in *nanoseconds*.
* We will wait 0.5 seconds which gives a practical minimum
* framerate of 2 which is desired for the motion_loop to
* function.
*/
gettimeofday(&curtime, NULL);
curtime.tv_usec += 500000;
if (curtime.tv_usec > 1000000) {
curtime.tv_usec -= 1000000;
curtime.tv_sec++;
}
waittime.tv_sec = curtime.tv_sec;
waittime.tv_nsec = 1000L * curtime.tv_usec;
do {
retcode = pthread_cond_timedwait(&netcam->pic_ready,
&netcam->mutex, &waittime);
} while (retcode == EINTR);
if (retcode) { /* We assume a non-zero reply is ETIMEOUT */
pthread_mutex_unlock(&netcam->mutex);
MOTION_LOG(WRN, TYPE_NETCAM, NO_ERRNO,
"%s: no new pic, no signal rcvd");
return NETCAM_GENERAL_ERROR | NETCAM_NOTHING_NEW_ERROR;
}
MOTION_LOG(INF, TYPE_NETCAM, NO_ERRNO,
"%s: ***new pic delay successful***");
}
netcam->imgcnt_last = netcam->imgcnt;
/* Set latest buffer as "current". */
buff = netcam->latest;
netcam->latest = netcam->jpegbuf;
netcam->jpegbuf = buff;
pthread_mutex_unlock(&netcam->mutex);
/* Clear any error flag from previous work. */
netcam->jpeg_error = 0;
buff = netcam->jpegbuf;
/*
* Prepare for the decompression.
* Initialize the JPEG decompression object.
*/
jpeg_create_decompress(cinfo);
/* Set up own error exit routine. */
cinfo->err = jpeg_std_error(&netcam->jerr);
cinfo->client_data = netcam;
netcam->jerr.error_exit = netcam_error_exit;
netcam->jerr.output_message = netcam_output_message;
/* Specify the data source as our own routine. */
netcam_memory_src(cinfo, buff->ptr, buff->used);
/* Read file parameters (rejecting tables-only). */
jpeg_read_header(cinfo, TRUE);
/* Override the desired colour space. */
cinfo->out_color_space = JCS_YCbCr;
/* Start the decompressor. */
jpeg_start_decompress(cinfo);
MOTION_LOG(DBG, TYPE_NETCAM, NO_ERRNO, "%s: jpeg_error %d",
netcam->jpeg_error);
return netcam->jpeg_error;
}
/**
* get_oformat
* Obtains the output format used for the specified codec. For mpeg4 codecs,
* the format is avi; for mpeg1 codec, the format is mpeg. The filename has
* to be passed, because it gets the appropriate extension appended onto it.
*
* Returns
* AVOutputFormat pointer or NULL if any error happens.
*/
static AVOutputFormat *get_oformat(const char *codec, char *filename)
{
const char *ext;
AVOutputFormat *of = NULL;
/*
* Here, we use guess_format to automatically setup the codec information.
* If we are using msmpeg4, manually set that codec here.
* We also dynamically add the file extension to the filename here. This was
* done to support both mpeg1 and mpeg4 codecs since they have different extensions.
*/
if (strcmp(codec, "tlapse") == 0) {
ext = ".swf";
of = av_guess_format("swf", NULL, NULL);
if (of) of->video_codec = MY_CODEC_ID_MPEG2VIDEO;
} else if (strcmp(codec, "mpeg4") == 0) {
ext = ".avi";
of = av_guess_format("avi", NULL, NULL);
} else if (strcmp(codec, "msmpeg4") == 0) {
ext = ".avi";
of = av_guess_format("avi", NULL, NULL);
/* Manually override the codec id. */
if (of)
of->video_codec = MY_CODEC_ID_MSMPEG4V2;
} else if (strcmp(codec, "swf") == 0) {
ext = ".swf";
of = av_guess_format("swf", NULL, NULL);
} else if (strcmp(codec, "flv") == 0) {
ext = ".flv";
of = av_guess_format("flv", NULL, NULL);
of->video_codec = MY_CODEC_ID_FLV1;
} else if (strcmp(codec, "ffv1") == 0) {
ext = ".avi";
of = av_guess_format("avi", NULL, NULL);
if (of) of->video_codec = MY_CODEC_ID_FFV1;
} else if (strcmp(codec, "mov") == 0) {
ext = ".mov";
of = av_guess_format("mov", NULL, NULL);
} else if (strcmp (codec, "ogg") == 0) {
ext = ".ogg";
of = av_guess_format ("ogg", NULL, NULL);
} else if (strcmp (codec, "mp4") == 0){
ext = ".mp4";
of = av_guess_format ("mp4", NULL, NULL);
of->video_codec = MY_CODEC_ID_H264;
} else if (strcmp (codec, "mkv") == 0){
ext = ".mkv";
of = av_guess_format ("matroska", NULL, NULL);
of->video_codec = MY_CODEC_ID_H264;
} else if (strcmp (codec, "hevc") == 0){
ext = ".mp4";
of = av_guess_format ("mp4", NULL, NULL);
of->video_codec = MY_CODEC_ID_HEVC;
} else {
MOTION_LOG(ERR, TYPE_ENCODER, NO_ERRNO, "%s: ffmpeg_video_codec option value"
" %s is not supported", codec);
return NULL;
}
if (!of) {
MOTION_LOG(ERR, TYPE_ENCODER, NO_ERRNO,
"%s: Could not guess format for %s", codec);
return NULL;
}
/* The 4 allows for ".avi" or ".mpg" to be appended. */
strncat(filename, ext, 4);
return of;
}
/**
* netcam_image_conv
*
* Parameters:
* netcam pointer to netcam_context
* cinfo pointer to JPEG decompression context
* image pointer to buffer of destination image (yuv420)
*
* Returns : netcam->jpeg_error
*/
static int netcam_image_conv(netcam_context_ptr netcam,
struct jpeg_decompress_struct *cinfo,
unsigned char *image)
{
JSAMPARRAY line; /* Array of decomp data lines */
unsigned char *wline; /* Will point to line[0] */
/* Working variables */
int linesize, i;
unsigned char *upic, *vpic;
unsigned char *pic = image;
unsigned char y; /* Switch for decoding YUV data */
unsigned int width, height;
width = cinfo->output_width;
height = cinfo->output_height;
if (width && ((width != netcam->width) || (height != netcam->height))) {
MOTION_LOG(WRN, TYPE_NETCAM, NO_ERRNO,
"%s: JPEG image size %dx%d, JPEG was %dx%d",
netcam->width, netcam->height, width, height);
jpeg_destroy_decompress(cinfo);
netcam->jpeg_error |= 4;
return netcam->jpeg_error;
}
/* Set the output pointers (these come from YUV411P definition. */
upic = pic + width * height;
vpic = upic + (width * height) / 4;
/* YCbCr format will give us one byte each for YUV. */
linesize = cinfo->output_width * 3;
/* Allocate space for one line. */
line = (cinfo->mem->alloc_sarray)((j_common_ptr) cinfo, JPOOL_IMAGE,
cinfo->output_width * cinfo->output_components, 1);
wline = line[0];
y = 0;
while (cinfo->output_scanline < height) {
jpeg_read_scanlines(cinfo, line, 1);
for (i = 0; i < linesize; i += 3) {
pic[i / 3] = wline[i];
if (i & 1) {
upic[(i / 3) / 2] = wline[i + 1];
vpic[(i / 3) / 2] = wline[i + 2];
}
}
pic += linesize / 3;
if (y++ & 1) {
upic += width / 2;
vpic += width / 2;
}
}
jpeg_finish_decompress(cinfo);
jpeg_destroy_decompress(cinfo);
if (netcam->cnt->rotate_data.degrees > 0)
/* Rotate as specified */
rotate_map(netcam->cnt, image);
MOTION_LOG(DBG, TYPE_NETCAM, NO_ERRNO, "%s: jpeg_error %d",
netcam->jpeg_error);
return netcam->jpeg_error;
}
/**
* ffmpeg_open
* Opens an mpeg file using the new libavformat method. Both mpeg1
* and mpeg4 are supported. However, if the current ffmpeg version doesn't allow
* mpeg1 with non-standard framerate, the open will fail. Timelapse is a special
* case and is tested separately.
*
* Returns
* A new allocated ffmpeg struct or NULL if any error happens.
*/
struct ffmpeg *ffmpeg_open(const char *ffmpeg_video_codec, char *filename,
unsigned char *y, unsigned char *u, unsigned char *v, int width, int height,
int rate, int bps, int vbr, int tlapse) {
AVCodecContext *c;
AVCodec *codec;
struct ffmpeg *ffmpeg;
int ret;
char errstr[128];
AVDictionary *opts = 0;
/*
* Allocate space for our ffmpeg structure. This structure contains all the
* codec and image information we need to generate movies.
*/
ffmpeg = mymalloc(sizeof(struct ffmpeg));
memset(ffmpeg, 0, sizeof(struct ffmpeg));
ffmpeg->vbr = vbr;
ffmpeg->tlapse = tlapse;
/* Store codec name in ffmpeg->codec, with buffer overflow check. */
snprintf(ffmpeg->codec, sizeof(ffmpeg->codec), "%s", ffmpeg_video_codec);
/* Allocation the output media context. */
ffmpeg->oc = avformat_alloc_context();
if (!ffmpeg->oc) {
MOTION_LOG(ERR, TYPE_ENCODER, SHOW_ERRNO,
"%s: Could not allocate output context");
ffmpeg_cleanups(ffmpeg);
return NULL;
}
/* Setup output format */
if (ffmpeg->tlapse == TIMELAPSE_APPEND){
ffmpeg->oc->oformat = get_oformat("tlapse", filename);
} else {
ffmpeg->oc->oformat = get_oformat(ffmpeg_video_codec, filename);
}
if (!ffmpeg->oc->oformat) {
ffmpeg_cleanups(ffmpeg);
return NULL;
}
snprintf(ffmpeg->oc->filename, sizeof(ffmpeg->oc->filename), "%s", filename);
/* Create a new video stream and initialize the codecs. */
ffmpeg->video_st = NULL;
if (ffmpeg->oc->oformat->video_codec != MY_CODEC_ID_NONE) {
codec = avcodec_find_encoder(ffmpeg->oc->oformat->video_codec);
if (!codec) {
MOTION_LOG(ERR, TYPE_ENCODER, NO_ERRNO, "%s: Codec %s not found",
ffmpeg_video_codec);
ffmpeg_cleanups(ffmpeg);
return NULL;
}
ffmpeg->video_st = avformat_new_stream(ffmpeg->oc, codec);
if (!ffmpeg->video_st) {
MOTION_LOG(ERR, TYPE_ENCODER, SHOW_ERRNO, "%s: Could not alloc stream");
ffmpeg_cleanups(ffmpeg);
return NULL;
}
} else {
/* We did not get a proper video codec. */
MOTION_LOG(ERR, TYPE_ENCODER, NO_ERRNO, "%s: Could not get the codec");
ffmpeg_cleanups(ffmpeg);
return NULL;
}
ffmpeg->c = c = AVSTREAM_CODEC_PTR(ffmpeg->video_st);
c->codec_id = ffmpeg->oc->oformat->video_codec;
c->codec_type = AVMEDIA_TYPE_VIDEO;
c->bit_rate = bps;
c->width = width;
c->height = height;
c->time_base.num = 1;
c->time_base.den = rate;
c->gop_size = 12;
c->pix_fmt = MY_PIX_FMT_YUV420P;
c->max_b_frames = 0;
if (c->codec_id == MY_CODEC_ID_H264 ||
c->codec_id == MY_CODEC_ID_HEVC){
av_dict_set(&opts, "preset", "ultrafast", 0);
av_dict_set(&opts, "crf", "18", 0);
av_dict_set(&opts, "tune", "zerolatency", 0);
}
if (strcmp(ffmpeg_video_codec, "ffv1") == 0) c->strict_std_compliance = -2;
if (vbr) c->flags |= CODEC_FLAG_QSCALE;
if (!strcmp(ffmpeg->oc->oformat->name, "mp4") ||
!strcmp(ffmpeg->oc->oformat->name, "mov") ||
!strcmp(ffmpeg->oc->oformat->name, "3gp")) {
c->flags |= CODEC_FLAG_GLOBAL_HEADER;
}
/* Get a mutex lock. */
pthread_mutex_lock(&global_lock);
ret = avcodec_open2(c, codec, &opts);
pthread_mutex_unlock(&global_lock);
if (ret < 0) {
if (codec->supported_framerates) {
const AVRational *fps = codec->supported_framerates;
while (fps->num) {
MOTION_LOG(NTC, TYPE_ENCODER, NO_ERRNO, "%s Reported FPS Supported %d/%d", fps->num, fps->den);
fps++;
}
}
int chkrate = 1;
pthread_mutex_lock(&global_lock);
while ((chkrate < 36) && (ret != 0)) {
c->time_base.den = chkrate;
ret = avcodec_open2(c, codec, &opts);
chkrate++;
}
pthread_mutex_unlock(&global_lock);
if (ret < 0) {
av_strerror(ret, errstr, sizeof(errstr));
MOTION_LOG(ERR, TYPE_ENCODER, NO_ERRNO, "%s: Could not open codec %s",errstr);
av_dict_free(&opts);
ffmpeg_cleanups(ffmpeg);
return NULL;
}
}
av_dict_free(&opts);
MOTION_LOG(NTC, TYPE_ENCODER, NO_ERRNO, "%s Selected Output FPS %d", c->time_base.den);
ffmpeg->video_outbuf = NULL;
if (!(ffmpeg->oc->oformat->flags & AVFMT_RAWPICTURE)) {
ffmpeg->video_outbuf_size = ffmpeg->c->width * 512;
ffmpeg->video_outbuf = mymalloc(ffmpeg->video_outbuf_size);
}
ffmpeg->picture = my_frame_alloc();
if (!ffmpeg->picture) {
MOTION_LOG(ERR, TYPE_ENCODER, NO_ERRNO, "%s: could not alloc frame");
ffmpeg_cleanups(ffmpeg);
return NULL;
}
/* Set variable bitrate if requested. */
if (ffmpeg->vbr)
ffmpeg->picture->quality = ffmpeg->vbr;
/* Set the frame data. */
ffmpeg->picture->data[0] = y;
ffmpeg->picture->data[1] = u;
ffmpeg->picture->data[2] = v;
ffmpeg->picture->linesize[0] = ffmpeg->c->width;
ffmpeg->picture->linesize[1] = ffmpeg->c->width / 2;
ffmpeg->picture->linesize[2] = ffmpeg->c->width / 2;
/* Open the output file, if needed. */
if ((access(filename, W_OK) == 0) || (ffmpeg->tlapse != TIMELAPSE_APPEND)) {
if (!(ffmpeg->oc->oformat->flags & AVFMT_NOFILE)) {
if (avio_open(&ffmpeg->oc->pb, filename, MY_FLAG_WRITE) < 0) {
if (errno == ENOENT) {
if (create_path(filename) == -1) {
ffmpeg_cleanups(ffmpeg);
return NULL;
}
if (avio_open(&ffmpeg->oc->pb, filename, MY_FLAG_WRITE) < 0) {
MOTION_LOG(ERR, TYPE_ENCODER, SHOW_ERRNO,
"%s: error opening file %s", filename);
ffmpeg_cleanups(ffmpeg);
return NULL;
}
/* Permission denied */
} else if (errno == EACCES) {
MOTION_LOG(ERR, TYPE_ENCODER, SHOW_ERRNO,
"%s: Permission denied. %s",filename);
ffmpeg_cleanups(ffmpeg);
return NULL;
} else {
MOTION_LOG(ERR, TYPE_ENCODER, SHOW_ERRNO,
"%s: Error opening file %s", filename);
ffmpeg_cleanups(ffmpeg);
return NULL;
}
}
}
/* Write the stream header, For the TIMELAPSE_APPEND
* we write the data via standard file I/O so we close the
* items here
*/
avformat_write_header(ffmpeg->oc, NULL);
if (ffmpeg->tlapse == TIMELAPSE_APPEND) {
av_write_trailer(ffmpeg->oc);
avio_close(ffmpeg->oc->pb);
}
}
return ffmpeg;
}
/**
* ftp_connect
*
* Tries to open a control connection.
*
* Parameters:
*
* ctxt an FTP context
*
* Returns -1 in case of error, 0 otherwise.
*/
int ftp_connect(netcam_context_ptr netcam)
{
ftp_context_pointer ctxt;
struct hostent *hp;
int port;
int res;
int addrlen = sizeof (struct sockaddr_in);
if (netcam == NULL)
return -1;
ctxt = netcam->ftp;
if (ctxt == NULL)
return -1;
if (netcam->connect_host == NULL)
return -1;
/* Do the blocking DNS query. */
port = netcam->connect_port;
if (port == 0)
port = 21;
memset (&ctxt->ftp_address, 0, sizeof(ctxt->ftp_address));
hp = gethostbyname (netcam->connect_host);
if (hp == NULL) {
MOTION_LOG(ERR, TYPE_NETCAM, SHOW_ERRNO, "%s: gethostbyname failed in ftp_connect");
return -1;
}
if ((unsigned int) hp->h_length >
sizeof(((struct sockaddr_in *)&ctxt->ftp_address)->sin_addr)) {
MOTION_LOG(ERR, TYPE_NETCAM, SHOW_ERRNO, "%s: gethostbyname address mismatch "
"in ftp_connect");
return -1;
}
/* Prepare the socket */
((struct sockaddr_in *)&ctxt->ftp_address)->sin_family = AF_INET;
memcpy (&((struct sockaddr_in *)&ctxt->ftp_address)->sin_addr, hp->h_addr_list[0], hp->h_length);
((struct sockaddr_in *)&ctxt->ftp_address)->sin_port = (u_short)htons ((unsigned short)port);
ctxt->control_file_desc = socket (AF_INET, SOCK_STREAM, 0);
addrlen = sizeof (struct sockaddr_in);
if (ctxt->control_file_desc < 0) {
MOTION_LOG(ERR, TYPE_NETCAM, SHOW_ERRNO, "%s: socket failed");
return -1;
}
/* Do the connect. */
if (connect(ctxt->control_file_desc, (struct sockaddr *) &ctxt->ftp_address,
addrlen) < 0) {
MOTION_LOG(ERR, TYPE_NETCAM, SHOW_ERRNO, "%s: Failed to create a connection");
close(ctxt->control_file_desc);
ctxt->control_file_desc = -1;
return -1;
}
/* Wait for the HELLO from the server. */
res = ftp_get_response(ctxt);
if (res != 2) {
close(ctxt->control_file_desc);
ctxt->control_file_desc = -1;
return -1;
}
/* Do the authentication */
res = ftp_send_user(ctxt);
if (res < 0) {
close(ctxt->control_file_desc);
ctxt->control_file_desc = -1;
return -1;
}
res = ftp_get_response(ctxt);
switch (res) {
case 2:
return 0;
case 3:
break;
case 1:
case 4:
case 5:
case -1:
default:
close(ctxt->control_file_desc);
ctxt->control_file_desc = -1;
return -1;
}
res = ftp_send_passwd(ctxt);
if (res < 0) {
close(ctxt->control_file_desc);
ctxt->control_file_desc = -1;
return -1;
}
res = ftp_get_response(ctxt);
switch (res) {
case 2:
break;
case 3:
MOTION_LOG(WRN, TYPE_NETCAM, NO_ERRNO, "%s: FTP server asking for ACCT on anonymous");
case 1:
case 4:
case 5:
case -1:
default:
close(ctxt->control_file_desc);
ctxt->control_file_desc = -1;
ctxt->control_file_desc = -1;
return-1;
}
return 0;
}
/**
* jpgutl_decode_jpeg
* Purpose: Decompress the jpeg data_in into the img_out buffer.
*
* Parameters:
* jpeg_data_in The jpeg data sent in
* jpeg_data_len The length of the jpeg data
* width The width of the image
* height The height of the image
* img_out Pointer to the image output
*
* Return Values
* Success 0, Failure -1
*/
int jpgutl_decode_jpeg (unsigned char *jpeg_data_in, int jpeg_data_len,
unsigned int width, unsigned int height, unsigned char *volatile img_out)
{
JSAMPARRAY line; /* Array of decomp data lines */
unsigned char *wline; /* Will point to line[0] */
unsigned int i;
unsigned char *img_y, *img_cb, *img_cr;
unsigned char offset_y;
struct jpeg_decompress_struct dinfo;
struct jpgutl_error_mgr jerr;
/* We set up the normal JPEG error routines, then override error_exit. */
dinfo.err = jpeg_std_error (&jerr.pub);
jerr.pub.error_exit = jpgutl_error_exit;
/* Also hook the emit_message routine to note corrupt-data warnings. */
jerr.original_emit_message = jerr.pub.emit_message;
jerr.pub.emit_message = jpgutl_emit_message;
jerr.warning_seen = 0;
jpeg_create_decompress (&dinfo);
/* Establish the setjmp return context for jpgutl_error_exit to use. */
if (setjmp (jerr.setjmp_buffer)) {
/* If we get here, the JPEG code has signaled an error. */
jpeg_destroy_decompress (&dinfo);
return -1;
}
jpgutl_buffer_src (&dinfo, jpeg_data_in, jpeg_data_len);
jpeg_read_header (&dinfo, TRUE);
//420 sampling is the default for YCbCr so no need to override.
dinfo.out_color_space = JCS_YCbCr;
dinfo.dct_method = JDCT_DEFAULT;
guarantee_huff_tables(&dinfo); /* Required by older versions of the jpeg libs */
jpeg_start_decompress (&dinfo);
if ((dinfo.output_width == 0) || (dinfo.output_height == 0)) {
MOTION_LOG(WRN, TYPE_VIDEO, NO_ERRNO,_("Invalid JPEG image dimensions"));
jpeg_destroy_decompress(&dinfo);
return -1;
}
if ((dinfo.output_width != width) || (dinfo.output_height != height)) {
MOTION_LOG(WRN, TYPE_VIDEO, NO_ERRNO
,_("JPEG image size %dx%d, JPEG was %dx%d")
,width, height, dinfo.output_width, dinfo.output_height);
jpeg_destroy_decompress(&dinfo);
return -1;
}
img_y = img_out;
img_cb = img_y + dinfo.output_width * dinfo.output_height;
img_cr = img_cb + (dinfo.output_width * dinfo.output_height) / 4;
/* Allocate space for one line. */
line = (*dinfo.mem->alloc_sarray)((j_common_ptr) &dinfo, JPOOL_IMAGE,
dinfo.output_width * dinfo.output_components, 1);
wline = line[0];
offset_y = 0;
while (dinfo.output_scanline < dinfo.output_height) {
jpeg_read_scanlines(&dinfo, line, 1);
for (i = 0; i < (dinfo.output_width * 3); i += 3) {
img_y[i / 3] = wline[i];
if (i & 1) {
img_cb[(i / 3) / 2] = wline[i + 1];
img_cr[(i / 3) / 2] = wline[i + 2];
}
}
img_y += dinfo.output_width;
if (offset_y++ & 1) {
img_cb += dinfo.output_width / 2;
img_cr += dinfo.output_width / 2;
}
}
jpeg_finish_decompress(&dinfo);
jpeg_destroy_decompress(&dinfo);
/*
* If there are too many warnings, this means that
* only a partial image could be returned which would
* trigger many false positive motion detections
*/
if (jerr.warning_seen > 2) return -1;
return 0;
}
