libavdevice/libdc1394.c - manifest_repos/ffmpeg - Git at Google

 /*
  * IIDC1394 grab interface (uses libdc1394 and libraw1394)
  * Copyright (c) 2004 Roman Shaposhnik
  * Copyright (c) 2008 Alessandro Sappia
  *
  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */

 #include <dc1394/dc1394.h>

 #include "libavutil/imgutils.h"
 #include "libavutil/internal.h"
 #include "libavutil/log.h"
 #include "libavutil/mathematics.h"
 #include "libavutil/opt.h"
 #include "libavutil/parseutils.h"
 #include "libavutil/pixdesc.h"

 #include "libavformat/avformat.h"
 #include "libavformat/internal.h"

 typedef struct dc1394_data {
     AVClass *class;
     dc1394_t *d;
     dc1394camera_t *camera;
     dc1394video_frame_t *frame;
     int current_frame;
     int  frame_rate;        /**< frames per 1000 seconds (fps * 1000) */
     char *video_size;       /**< String describing video size, set by a private option. */
     char *pixel_format;     /**< Set by a private option. */
     char *framerate;        /**< Set by a private option. */

     int size;
     int stream_index;
 } dc1394_data;

 static const struct dc1394_frame_format {
     int width;
     int height;
     enum AVPixelFormat pix_fmt;
     int frame_size_id;
 } dc1394_frame_formats[] = {
     { 320, 240, AV_PIX_FMT_UYVY422,   DC1394_VIDEO_MODE_320x240_YUV422 },
     { 640, 480, AV_PIX_FMT_GRAY8,     DC1394_VIDEO_MODE_640x480_MONO8 },
     { 640, 480, AV_PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 },
     { 640, 480, AV_PIX_FMT_UYVY422,   DC1394_VIDEO_MODE_640x480_YUV422 },
     { 0, 0, 0, 0 } /* gotta be the last one */
 };

 static const struct dc1394_frame_rate {
     int frame_rate;
     int frame_rate_id;
 } dc1394_frame_rates[] = {
     {  1875, DC1394_FRAMERATE_1_875 },
     {  3750, DC1394_FRAMERATE_3_75  },
     {  7500, DC1394_FRAMERATE_7_5   },
     { 15000, DC1394_FRAMERATE_15    },
     { 30000, DC1394_FRAMERATE_30    },
     { 60000, DC1394_FRAMERATE_60    },
     {120000, DC1394_FRAMERATE_120   },
     {240000, DC1394_FRAMERATE_240    },
     { 0, 0 } /* gotta be the last one */
 };

 #define OFFSET(x) offsetof(dc1394_data, x)
 #define DEC AV_OPT_FLAG_DECODING_PARAM
 static const AVOption options[] = {
     { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC },
     { "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "uyvy422"}, 0, 0, DEC },
     { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
     { NULL },
 };

 static const AVClass libdc1394_class = {
     .class_name = "libdc1394 indev",
     .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
 };


 static inline int dc1394_read_common(AVFormatContext *c,
                                      const struct dc1394_frame_format **select_fmt, const struct dc1394_frame_rate **select_fps)
 {
     dc1394_data* dc1394 = c->priv_data;
     AVStream* vst;
     const struct dc1394_frame_format *fmt;
     const struct dc1394_frame_rate *fps;
     enum AVPixelFormat pix_fmt;
     int width, height;
     AVRational framerate;
     int ret = 0;

     if ((pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == AV_PIX_FMT_NONE) {
         av_log(c, AV_LOG_ERROR, "No such pixel format: %s.\n", dc1394->pixel_format);
         ret = AVERROR(EINVAL);
         goto out;
     }

     if ((ret = av_parse_video_size(&width, &height, dc1394->video_size)) < 0) {
         av_log(c, AV_LOG_ERROR, "Could not parse video size '%s'.\n", dc1394->video_size);
         goto out;
     }
     if ((ret = av_parse_video_rate(&framerate, dc1394->framerate)) < 0) {
         av_log(c, AV_LOG_ERROR, "Could not parse framerate '%s'.\n", dc1394->framerate);
         goto out;
     }
     dc1394->frame_rate = av_rescale(1000, framerate.num, framerate.den);

     for (fmt = dc1394_frame_formats; fmt->width; fmt++)
          if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height)
              break;

     for (fps = dc1394_frame_rates; fps->frame_rate; fps++)
          if (fps->frame_rate == dc1394->frame_rate)
              break;

     if (!fps->frame_rate || !fmt->width) {
         av_log(c, AV_LOG_ERROR, "Can't find matching camera format for %s, %dx%d@%d:1000fps\n", av_get_pix_fmt_name(pix_fmt),
                                                                                                 width, height, dc1394->frame_rate);
         ret = AVERROR(EINVAL);
         goto out;
     }

     /* create a video stream */
     vst = avformat_new_stream(c, NULL);
     if (!vst) {
         ret = AVERROR(ENOMEM);
         goto out;
     }
     avpriv_set_pts_info(vst, 64, 1, 1000);
     vst->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
     vst->codecpar->codec_id = AV_CODEC_ID_RAWVIDEO;
     vst->codecpar->width = fmt->width;
     vst->codecpar->height = fmt->height;
     vst->codecpar->format = fmt->pix_fmt;
     vst->avg_frame_rate = framerate;

     dc1394->current_frame = 0;
     dc1394->stream_index = vst->index;
     dc1394->size = av_image_get_buffer_size(fmt->pix_fmt,
                                             fmt->width, fmt->height, 1);

     vst->codecpar->bit_rate = av_rescale(dc1394->size * 8,
                                          fps->frame_rate, 1000);
     *select_fps = fps;
     *select_fmt = fmt;
 out:
     return ret;
 }

 static int dc1394_read_header(AVFormatContext *c)
 {
     dc1394_data* dc1394 = c->priv_data;
     dc1394camera_list_t *list;
     int res, i;
     const struct dc1394_frame_format *fmt = NULL;
     const struct dc1394_frame_rate *fps = NULL;

     if (dc1394_read_common(c, &fmt, &fps) != 0)
        return -1;

     /* Now let us prep the hardware. */
     dc1394->d = dc1394_new();
     if (dc1394_camera_enumerate(dc1394->d, &list) != DC1394_SUCCESS || !list) {
         av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera.\n");
         goto out;
     }

     if (list->num == 0) {
         av_log(c, AV_LOG_ERROR, "No cameras found.\n");
         dc1394_camera_free_list(list);
         goto out;
     }

     /* FIXME: To select a specific camera I need to search in list its guid */
     dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid);

     if (!dc1394->camera) {
          av_log(c, AV_LOG_ERROR, "Unable to open camera with guid 0x%"PRIx64"\n",
                 list->ids[0].guid);
          dc1394_camera_free_list(list);
          goto out;
     }

     if (list->num > 1) {
         av_log(c, AV_LOG_INFO, "Working with the first camera found\n");
     }

     /* Freeing list of cameras */
     dc1394_camera_free_list (list);

     /* Select MAX Speed possible from the cam */
     if (dc1394->camera->bmode_capable>0) {
        dc1394_video_set_operation_mode(dc1394->camera, DC1394_OPERATION_MODE_1394B);
        i = DC1394_ISO_SPEED_800;
     } else {
        i = DC1394_ISO_SPEED_400;
     }

     for (res = DC1394_FAILURE; i >= DC1394_ISO_SPEED_MIN && res != DC1394_SUCCESS; i--) {
             res=dc1394_video_set_iso_speed(dc1394->camera, i);
     }
     if (res != DC1394_SUCCESS) {
         av_log(c, AV_LOG_ERROR, "Couldn't set ISO Speed\n");
         goto out_camera;
     }

     if (dc1394_video_set_mode(dc1394->camera, fmt->frame_size_id) != DC1394_SUCCESS) {
         av_log(c, AV_LOG_ERROR, "Couldn't set video format\n");
         goto out_camera;
     }

     if (dc1394_video_set_framerate(dc1394->camera,fps->frame_rate_id) != DC1394_SUCCESS) {
         av_log(c, AV_LOG_ERROR, "Couldn't set framerate %d \n",fps->frame_rate);
         goto out_camera;
     }
     if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) {
         av_log(c, AV_LOG_ERROR, "Cannot setup camera \n");
         goto out_camera;
     }

     if (dc1394_video_set_transmission(dc1394->camera, DC1394_ON) !=DC1394_SUCCESS) {
         av_log(c, AV_LOG_ERROR, "Cannot start capture\n");
         goto out_camera;
     }
     return 0;

 out_camera:
     dc1394_capture_stop(dc1394->camera);
     dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
     dc1394_camera_free (dc1394->camera);
 out:
     dc1394_free(dc1394->d);
     return -1;
 }

 static int dc1394_read_packet(AVFormatContext *c, AVPacket *pkt)
 {
     struct dc1394_data *dc1394 = c->priv_data;
     int res;

     /* discard stale frame */
     if (dc1394->current_frame++) {
         if (dc1394_capture_enqueue(dc1394->camera, dc1394->frame) != DC1394_SUCCESS)
             av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
     }

     res = dc1394_capture_dequeue(dc1394->camera, DC1394_CAPTURE_POLICY_WAIT, &dc1394->frame);
     if (res == DC1394_SUCCESS) {
         pkt->data = (uint8_t *)dc1394->frame->image;
         pkt->size = dc1394->frame->image_bytes;
         pkt->pts = dc1394->current_frame * 1000000 / dc1394->frame_rate;
         pkt->flags |= AV_PKT_FLAG_KEY;
         pkt->stream_index = dc1394->stream_index;
     } else {
         av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
         return AVERROR_INVALIDDATA;
     }

     return pkt->size;
 }

 static int dc1394_close(AVFormatContext * context)
 {
     struct dc1394_data *dc1394 = context->priv_data;

     dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
     dc1394_capture_stop(dc1394->camera);
     dc1394_camera_free(dc1394->camera);
     dc1394_free(dc1394->d);

     return 0;
 }

 AVInputFormat ff_libdc1394_demuxer = {
     .name           = "libdc1394",
     .long_name      = NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"),
     .priv_data_size = sizeof(struct dc1394_data),
     .read_header    = dc1394_read_header,
     .read_packet    = dc1394_read_packet,
     .read_close     = dc1394_close,
     .flags          = AVFMT_NOFILE,
     .priv_class     = &libdc1394_class,
 };
	/*
	* IIDC1394 grab interface (uses libdc1394 and libraw1394)
	* Copyright (c) 2004 Roman Shaposhnik
	* Copyright (c) 2008 Alessandro Sappia
	*
	* This file is part of FFmpeg.
	*
	* FFmpeg is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public
	* License as published by the Free Software Foundation; either
	* version 2.1 of the License, or (at your option) any later version.
	*
	* FFmpeg is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with FFmpeg; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	*/

	#include <dc1394/dc1394.h>

	#include "libavutil/imgutils.h"
	#include "libavutil/internal.h"
	#include "libavutil/log.h"
	#include "libavutil/mathematics.h"
	#include "libavutil/opt.h"
	#include "libavutil/parseutils.h"
	#include "libavutil/pixdesc.h"

	#include "libavformat/avformat.h"
	#include "libavformat/internal.h"

	typedef struct dc1394_data {
	AVClass *class;
	dc1394_t *d;
	dc1394camera_t *camera;
	dc1394video_frame_t *frame;
	int current_frame;
	int frame_rate; /*< frames per 1000 seconds (fps 1000) */
	char video_size; /< String describing video size, set by a private option. /
	char pixel_format; /< Set by a private option. /
	char framerate; /< Set by a private option. /

	int size;
	int stream_index;
	} dc1394_data;

	static const struct dc1394_frame_format {
	int width;
	int height;
	enum AVPixelFormat pix_fmt;
	int frame_size_id;
	} dc1394_frame_formats[] = {
	{ 320, 240, AV_PIX_FMT_UYVY422, DC1394_VIDEO_MODE_320x240_YUV422 },
	{ 640, 480, AV_PIX_FMT_GRAY8, DC1394_VIDEO_MODE_640x480_MONO8 },
	{ 640, 480, AV_PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 },
	{ 640, 480, AV_PIX_FMT_UYVY422, DC1394_VIDEO_MODE_640x480_YUV422 },
	{ 0, 0, 0, 0 } /* gotta be the last one */
	};

	static const struct dc1394_frame_rate {
	int frame_rate;
	int frame_rate_id;
	} dc1394_frame_rates[] = {
	{ 1875, DC1394_FRAMERATE_1_875 },
	{ 3750, DC1394_FRAMERATE_3_75 },
	{ 7500, DC1394_FRAMERATE_7_5 },
	{ 15000, DC1394_FRAMERATE_15 },
	{ 30000, DC1394_FRAMERATE_30 },
	{ 60000, DC1394_FRAMERATE_60 },
	{120000, DC1394_FRAMERATE_120 },
	{240000, DC1394_FRAMERATE_240 },
	{ 0, 0 } /* gotta be the last one */
	};

	#define OFFSET(x) offsetof(dc1394_data, x)
	#define DEC AV_OPT_FLAG_DECODING_PARAM
	static const AVOption options[] = {
	{ "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC },
	{ "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "uyvy422"}, 0, 0, DEC },
	{ "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
	{ NULL },
	};

	static const AVClass libdc1394_class = {
	.class_name = "libdc1394 indev",
	.item_name = av_default_item_name,
	.option = options,
	.version = LIBAVUTIL_VERSION_INT,
	.category = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
	};


	static inline int dc1394_read_common(AVFormatContext *c,
	const struct dc1394_frame_format select_fmt, const struct dc1394_frame_rate select_fps)
	{
	dc1394_data* dc1394 = c->priv_data;
	AVStream* vst;
	const struct dc1394_frame_format *fmt;
	const struct dc1394_frame_rate *fps;
	enum AVPixelFormat pix_fmt;
	int width, height;
	AVRational framerate;
	int ret = 0;

	if ((pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == AV_PIX_FMT_NONE) {
	av_log(c, AV_LOG_ERROR, "No such pixel format: %s.\n", dc1394->pixel_format);
	ret = AVERROR(EINVAL);
	goto out;
	}

	if ((ret = av_parse_video_size(&width, &height, dc1394->video_size)) < 0) {
	av_log(c, AV_LOG_ERROR, "Could not parse video size '%s'.\n", dc1394->video_size);
	goto out;
	}
	if ((ret = av_parse_video_rate(&framerate, dc1394->framerate)) < 0) {
	av_log(c, AV_LOG_ERROR, "Could not parse framerate '%s'.\n", dc1394->framerate);
	goto out;
	}
	dc1394->frame_rate = av_rescale(1000, framerate.num, framerate.den);

	for (fmt = dc1394_frame_formats; fmt->width; fmt++)
	if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height)
	break;

	for (fps = dc1394_frame_rates; fps->frame_rate; fps++)
	if (fps->frame_rate == dc1394->frame_rate)
	break;

	if (!fps->frame_rate \|\| !fmt->width) {
	av_log(c, AV_LOG_ERROR, "Can't find matching camera format for %s, %dx%d@%d:1000fps\n", av_get_pix_fmt_name(pix_fmt),
	width, height, dc1394->frame_rate);
	ret = AVERROR(EINVAL);
	goto out;
	}

	/* create a video stream */
	vst = avformat_new_stream(c, NULL);
	if (!vst) {
	ret = AVERROR(ENOMEM);
	goto out;
	}
	avpriv_set_pts_info(vst, 64, 1, 1000);
	vst->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
	vst->codecpar->codec_id = AV_CODEC_ID_RAWVIDEO;
	vst->codecpar->width = fmt->width;
	vst->codecpar->height = fmt->height;
	vst->codecpar->format = fmt->pix_fmt;
	vst->avg_frame_rate = framerate;

	dc1394->current_frame = 0;
	dc1394->stream_index = vst->index;
	dc1394->size = av_image_get_buffer_size(fmt->pix_fmt,
	fmt->width, fmt->height, 1);

	vst->codecpar->bit_rate = av_rescale(dc1394->size * 8,
	fps->frame_rate, 1000);
	*select_fps = fps;
	*select_fmt = fmt;
	out:
	return ret;
	}

	static int dc1394_read_header(AVFormatContext *c)
	{
	dc1394_data* dc1394 = c->priv_data;
	dc1394camera_list_t *list;
	int res, i;
	const struct dc1394_frame_format *fmt = NULL;
	const struct dc1394_frame_rate *fps = NULL;

	if (dc1394_read_common(c, &fmt, &fps) != 0)
	return -1;

	/* Now let us prep the hardware. */
	dc1394->d = dc1394_new();
	if (dc1394_camera_enumerate(dc1394->d, &list) != DC1394_SUCCESS \|\| !list) {
	av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera.\n");
	goto out;
	}

	if (list->num == 0) {
	av_log(c, AV_LOG_ERROR, "No cameras found.\n");
	dc1394_camera_free_list(list);
	goto out;
	}

	/* FIXME: To select a specific camera I need to search in list its guid */
	dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid);

	if (!dc1394->camera) {
	av_log(c, AV_LOG_ERROR, "Unable to open camera with guid 0x%"PRIx64"\n",
	list->ids[0].guid);
	dc1394_camera_free_list(list);
	goto out;
	}

	if (list->num > 1) {
	av_log(c, AV_LOG_INFO, "Working with the first camera found\n");
	}

	/* Freeing list of cameras */
	dc1394_camera_free_list (list);

	/* Select MAX Speed possible from the cam */
	if (dc1394->camera->bmode_capable>0) {
	dc1394_video_set_operation_mode(dc1394->camera, DC1394_OPERATION_MODE_1394B);
	i = DC1394_ISO_SPEED_800;
	} else {
	i = DC1394_ISO_SPEED_400;
	}

	for (res = DC1394_FAILURE; i >= DC1394_ISO_SPEED_MIN && res != DC1394_SUCCESS; i--) {
	res=dc1394_video_set_iso_speed(dc1394->camera, i);
	}
	if (res != DC1394_SUCCESS) {
	av_log(c, AV_LOG_ERROR, "Couldn't set ISO Speed\n");
	goto out_camera;
	}

	if (dc1394_video_set_mode(dc1394->camera, fmt->frame_size_id) != DC1394_SUCCESS) {
	av_log(c, AV_LOG_ERROR, "Couldn't set video format\n");
	goto out_camera;
	}

	if (dc1394_video_set_framerate(dc1394->camera,fps->frame_rate_id) != DC1394_SUCCESS) {
	av_log(c, AV_LOG_ERROR, "Couldn't set framerate %d \n",fps->frame_rate);
	goto out_camera;
	}
	if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) {
	av_log(c, AV_LOG_ERROR, "Cannot setup camera \n");
	goto out_camera;
	}

	if (dc1394_video_set_transmission(dc1394->camera, DC1394_ON) !=DC1394_SUCCESS) {
	av_log(c, AV_LOG_ERROR, "Cannot start capture\n");
	goto out_camera;
	}
	return 0;

	out_camera:
	dc1394_capture_stop(dc1394->camera);
	dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
	dc1394_camera_free (dc1394->camera);
	out:
	dc1394_free(dc1394->d);
	return -1;
	}

	static int dc1394_read_packet(AVFormatContext c, AVPacket pkt)
	{
	struct dc1394_data *dc1394 = c->priv_data;
	int res;

	/* discard stale frame */
	if (dc1394->current_frame++) {
	if (dc1394_capture_enqueue(dc1394->camera, dc1394->frame) != DC1394_SUCCESS)
	av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
	}

	res = dc1394_capture_dequeue(dc1394->camera, DC1394_CAPTURE_POLICY_WAIT, &dc1394->frame);
	if (res == DC1394_SUCCESS) {
	pkt->data = (uint8_t *)dc1394->frame->image;
	pkt->size = dc1394->frame->image_bytes;
	pkt->pts = dc1394->current_frame * 1000000 / dc1394->frame_rate;
	pkt->flags \|= AV_PKT_FLAG_KEY;
	pkt->stream_index = dc1394->stream_index;
	} else {
	av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
	return AVERROR_INVALIDDATA;
	}

	return pkt->size;
	}

	static int dc1394_close(AVFormatContext * context)
	{
	struct dc1394_data *dc1394 = context->priv_data;

	dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
	dc1394_capture_stop(dc1394->camera);
	dc1394_camera_free(dc1394->camera);
	dc1394_free(dc1394->d);

	return 0;
	}

	AVInputFormat ff_libdc1394_demuxer = {
	.name = "libdc1394",
	.long_name = NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"),
	.priv_data_size = sizeof(struct dc1394_data),
	.read_header = dc1394_read_header,
	.read_packet = dc1394_read_packet,
	.read_close = dc1394_close,
	.flags = AVFMT_NOFILE,
	.priv_class = &libdc1394_class,
	};