Subversion Repositories Kolibri OS

Rev

Blame | Last modification | View Log | RSS feed

  1. /*
  2.  * IIDC1394 grab interface (uses libdc1394 and libraw1394)
  3.  * Copyright (c) 2004 Roman Shaposhnik
  4.  * Copyright (c) 2008 Alessandro Sappia
  5.  *
  6.  * This file is part of FFmpeg.
  7.  *
  8.  * FFmpeg is free software; you can redistribute it and/or
  9.  * modify it under the terms of the GNU Lesser General Public
  10.  * License as published by the Free Software Foundation; either
  11.  * version 2.1 of the License, or (at your option) any later version.
  12.  *
  13.  * FFmpeg is distributed in the hope that it will be useful,
  14.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16.  * Lesser General Public License for more details.
  17.  *
  18.  * You should have received a copy of the GNU Lesser General Public
  19.  * License along with FFmpeg; if not, write to the Free Software
  20.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21.  */
  22.  
  23. #include "config.h"
  24.  
  25. #if HAVE_LIBDC1394_2
  26. #include <dc1394/dc1394.h>
  27. #elif HAVE_LIBDC1394_1
  28. #include <libraw1394/raw1394.h>
  29. #include <libdc1394/dc1394_control.h>
  30.  
  31. #define DC1394_VIDEO_MODE_320x240_YUV422 MODE_320x240_YUV422
  32. #define DC1394_VIDEO_MODE_640x480_YUV411 MODE_640x480_YUV411
  33. #define DC1394_VIDEO_MODE_640x480_YUV422 MODE_640x480_YUV422
  34. #define DC1394_FRAMERATE_1_875 FRAMERATE_1_875
  35. #define DC1394_FRAMERATE_3_75  FRAMERATE_3_75
  36. #define DC1394_FRAMERATE_7_5   FRAMERATE_7_5
  37. #define DC1394_FRAMERATE_15    FRAMERATE_15
  38. #define DC1394_FRAMERATE_30    FRAMERATE_30
  39. #define DC1394_FRAMERATE_60    FRAMERATE_60
  40. #define DC1394_FRAMERATE_120   FRAMERATE_120
  41. #define DC1394_FRAMERATE_240   FRAMERATE_240
  42. #endif
  43.  
  44. #include "libavutil/internal.h"
  45. #include "libavutil/log.h"
  46. #include "libavutil/mathematics.h"
  47. #include "libavutil/opt.h"
  48. #include "libavutil/parseutils.h"
  49. #include "libavutil/pixdesc.h"
  50.  
  51. #include "libavformat/avformat.h"
  52. #include "libavformat/internal.h"
  53.  
  54. typedef struct dc1394_data {
  55.     AVClass *class;
  56. #if HAVE_LIBDC1394_1
  57.     raw1394handle_t handle;
  58.     dc1394_cameracapture camera;
  59.     int channel;
  60. #elif HAVE_LIBDC1394_2
  61.     dc1394_t *d;
  62.     dc1394camera_t *camera;
  63.     dc1394video_frame_t *frame;
  64. #endif
  65.     int current_frame;
  66.     int  frame_rate;        /**< frames per 1000 seconds (fps * 1000) */
  67.     char *video_size;       /**< String describing video size, set by a private option. */
  68.     char *pixel_format;     /**< Set by a private option. */
  69.     char *framerate;        /**< Set by a private option. */
  70.  
  71.     AVPacket packet;
  72. } dc1394_data;
  73.  
  74. static const struct dc1394_frame_format {
  75.     int width;
  76.     int height;
  77.     enum AVPixelFormat pix_fmt;
  78.     int frame_size_id;
  79. } dc1394_frame_formats[] = {
  80.     { 320, 240, AV_PIX_FMT_UYVY422,   DC1394_VIDEO_MODE_320x240_YUV422 },
  81.     { 640, 480, AV_PIX_FMT_GRAY8,     DC1394_VIDEO_MODE_640x480_MONO8 },
  82.     { 640, 480, AV_PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 },
  83.     { 640, 480, AV_PIX_FMT_UYVY422,   DC1394_VIDEO_MODE_640x480_YUV422 },
  84.     { 0, 0, 0, 0 } /* gotta be the last one */
  85. };
  86.  
  87. static const struct dc1394_frame_rate {
  88.     int frame_rate;
  89.     int frame_rate_id;
  90. } dc1394_frame_rates[] = {
  91.     {  1875, DC1394_FRAMERATE_1_875 },
  92.     {  3750, DC1394_FRAMERATE_3_75  },
  93.     {  7500, DC1394_FRAMERATE_7_5   },
  94.     { 15000, DC1394_FRAMERATE_15    },
  95.     { 30000, DC1394_FRAMERATE_30    },
  96.     { 60000, DC1394_FRAMERATE_60    },
  97.     {120000, DC1394_FRAMERATE_120   },
  98.     {240000, DC1394_FRAMERATE_240    },
  99.     { 0, 0 } /* gotta be the last one */
  100. };
  101.  
  102. #define OFFSET(x) offsetof(dc1394_data, x)
  103. #define DEC AV_OPT_FLAG_DECODING_PARAM
  104. static const AVOption options[] = {
  105. #if HAVE_LIBDC1394_1
  106.     { "channel", "", offsetof(dc1394_data, channel), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
  107. #endif
  108.     { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC },
  109.     { "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "uyvy422"}, 0, 0, DEC },
  110.     { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC },
  111.     { NULL },
  112. };
  113.  
  114. static const AVClass libdc1394_class = {
  115.     .class_name = "libdc1394 indev",
  116.     .item_name  = av_default_item_name,
  117.     .option     = options,
  118.     .version    = LIBAVUTIL_VERSION_INT,
  119.     .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
  120. };
  121.  
  122.  
  123. static inline int dc1394_read_common(AVFormatContext *c,
  124.                                      struct dc1394_frame_format **select_fmt, struct dc1394_frame_rate **select_fps)
  125. {
  126.     dc1394_data* dc1394 = c->priv_data;
  127.     AVStream* vst;
  128.     struct dc1394_frame_format *fmt;
  129.     struct dc1394_frame_rate *fps;
  130.     enum AVPixelFormat pix_fmt;
  131.     int width, height;
  132.     AVRational framerate;
  133.     int ret = 0;
  134.  
  135.     if ((pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == AV_PIX_FMT_NONE) {
  136.         av_log(c, AV_LOG_ERROR, "No such pixel format: %s.\n", dc1394->pixel_format);
  137.         ret = AVERROR(EINVAL);
  138.         goto out;
  139.     }
  140.  
  141.     if ((ret = av_parse_video_size(&width, &height, dc1394->video_size)) < 0) {
  142.         av_log(c, AV_LOG_ERROR, "Could not parse video size '%s'.\n", dc1394->video_size);
  143.         goto out;
  144.     }
  145.     if ((ret = av_parse_video_rate(&framerate, dc1394->framerate)) < 0) {
  146.         av_log(c, AV_LOG_ERROR, "Could not parse framerate '%s'.\n", dc1394->framerate);
  147.         goto out;
  148.     }
  149.     dc1394->frame_rate = av_rescale(1000, framerate.num, framerate.den);
  150.  
  151.     for (fmt = dc1394_frame_formats; fmt->width; fmt++)
  152.          if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height)
  153.              break;
  154.  
  155.     for (fps = dc1394_frame_rates; fps->frame_rate; fps++)
  156.          if (fps->frame_rate == dc1394->frame_rate)
  157.              break;
  158.  
  159.     if (!fps->frame_rate || !fmt->width) {
  160.         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),
  161.                                                                                                 width, height, dc1394->frame_rate);
  162.         ret = AVERROR(EINVAL);
  163.         goto out;
  164.     }
  165.  
  166.     /* create a video stream */
  167.     vst = avformat_new_stream(c, NULL);
  168.     if (!vst) {
  169.         ret = AVERROR(ENOMEM);
  170.         goto out;
  171.     }
  172.     avpriv_set_pts_info(vst, 64, 1, 1000);
  173.     vst->codec->codec_type = AVMEDIA_TYPE_VIDEO;
  174.     vst->codec->codec_id = AV_CODEC_ID_RAWVIDEO;
  175.     vst->codec->time_base.den = framerate.num;
  176.     vst->codec->time_base.num = framerate.den;
  177.     vst->codec->width = fmt->width;
  178.     vst->codec->height = fmt->height;
  179.     vst->codec->pix_fmt = fmt->pix_fmt;
  180.  
  181.     /* packet init */
  182.     av_init_packet(&dc1394->packet);
  183.     dc1394->packet.size = avpicture_get_size(fmt->pix_fmt, fmt->width, fmt->height);
  184.     dc1394->packet.stream_index = vst->index;
  185.     dc1394->packet.flags |= AV_PKT_FLAG_KEY;
  186.  
  187.     dc1394->current_frame = 0;
  188.  
  189.     vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, fps->frame_rate, 1000);
  190.     *select_fps = fps;
  191.     *select_fmt = fmt;
  192. out:
  193.     return ret;
  194. }
  195.  
  196. #if HAVE_LIBDC1394_1
  197. static int dc1394_v1_read_header(AVFormatContext *c)
  198. {
  199.     dc1394_data* dc1394 = c->priv_data;
  200.     AVStream* vst;
  201.     nodeid_t* camera_nodes;
  202.     int res;
  203.     struct dc1394_frame_format *fmt = NULL;
  204.     struct dc1394_frame_rate *fps = NULL;
  205.  
  206.     if (dc1394_read_common(c, &fmt, &fps) != 0)
  207.         return -1;
  208.  
  209.     /* Now let us prep the hardware. */
  210.     dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */
  211.     if (!dc1394->handle) {
  212.         av_log(c, AV_LOG_ERROR, "Can't acquire dc1394 handle on port %d\n", 0 /* ap->port */);
  213.         goto out;
  214.     }
  215.     camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1);
  216.     if (!camera_nodes || camera_nodes[dc1394->channel] == DC1394_NO_CAMERA) {
  217.         av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", dc1394->channel);
  218.         goto out_handle;
  219.     }
  220.     res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[dc1394->channel],
  221.                                    0,
  222.                                    FORMAT_VGA_NONCOMPRESSED,
  223.                                    fmt->frame_size_id,
  224.                                    SPEED_400,
  225.                                    fps->frame_rate_id, 8, 1,
  226.                                    c->filename,
  227.                                    &dc1394->camera);
  228.     dc1394_free_camera_nodes(camera_nodes);
  229.     if (res != DC1394_SUCCESS) {
  230.         av_log(c, AV_LOG_ERROR, "Can't prepare camera for the DMA capture\n");
  231.         goto out_handle;
  232.     }
  233.  
  234.     res = dc1394_start_iso_transmission(dc1394->handle, dc1394->camera.node);
  235.     if (res != DC1394_SUCCESS) {
  236.         av_log(c, AV_LOG_ERROR, "Can't start isochronous transmission\n");
  237.         goto out_handle_dma;
  238.     }
  239.  
  240.     return 0;
  241.  
  242. out_handle_dma:
  243.     dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
  244.     dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
  245. out_handle:
  246.     dc1394_destroy_handle(dc1394->handle);
  247. out:
  248.     return -1;
  249. }
  250.  
  251. static int dc1394_v1_read_packet(AVFormatContext *c, AVPacket *pkt)
  252. {
  253.     struct dc1394_data *dc1394 = c->priv_data;
  254.     int res;
  255.  
  256.     /* discard stale frame */
  257.     if (dc1394->current_frame++) {
  258.         if (dc1394_dma_done_with_buffer(&dc1394->camera) != DC1394_SUCCESS)
  259.             av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
  260.     }
  261.  
  262.     res = dc1394_dma_single_capture(&dc1394->camera);
  263.  
  264.     if (res == DC1394_SUCCESS) {
  265.         dc1394->packet.data = (uint8_t *)(dc1394->camera.capture_buffer);
  266.         dc1394->packet.pts = (dc1394->current_frame * 1000000) / dc1394->frame_rate;
  267.         res = dc1394->packet.size;
  268.     } else {
  269.         av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
  270.         dc1394->packet.data = NULL;
  271.         res = -1;
  272.     }
  273.  
  274.     *pkt = dc1394->packet;
  275.     return res;
  276. }
  277.  
  278. static int dc1394_v1_close(AVFormatContext * context)
  279. {
  280.     struct dc1394_data *dc1394 = context->priv_data;
  281.  
  282.     dc1394_stop_iso_transmission(dc1394->handle, dc1394->camera.node);
  283.     dc1394_dma_unlisten(dc1394->handle, &dc1394->camera);
  284.     dc1394_dma_release_camera(dc1394->handle, &dc1394->camera);
  285.     dc1394_destroy_handle(dc1394->handle);
  286.  
  287.     return 0;
  288. }
  289.  
  290. #elif HAVE_LIBDC1394_2
  291. static int dc1394_v2_read_header(AVFormatContext *c)
  292. {
  293.     dc1394_data* dc1394 = c->priv_data;
  294.     dc1394camera_list_t *list;
  295.     int res, i;
  296.     struct dc1394_frame_format *fmt = NULL;
  297.     struct dc1394_frame_rate *fps = NULL;
  298.  
  299.     if (dc1394_read_common(c, &fmt, &fps) != 0)
  300.        return -1;
  301.  
  302.     /* Now let us prep the hardware. */
  303.     dc1394->d = dc1394_new();
  304.     dc1394_camera_enumerate (dc1394->d, &list);
  305.     if ( !list || list->num == 0) {
  306.         av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera\n\n");
  307.         goto out;
  308.     }
  309.  
  310.     /* FIXME: To select a specific camera I need to search in list its guid */
  311.     dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid);
  312.     if (list->num > 1) {
  313.         av_log(c, AV_LOG_INFO, "Working with the first camera found\n");
  314.     }
  315.  
  316.     /* Freeing list of cameras */
  317.     dc1394_camera_free_list (list);
  318.  
  319.     /* Select MAX Speed possible from the cam */
  320.     if (dc1394->camera->bmode_capable>0) {
  321.        dc1394_video_set_operation_mode(dc1394->camera, DC1394_OPERATION_MODE_1394B);
  322.        i = DC1394_ISO_SPEED_800;
  323.     } else {
  324.        i = DC1394_ISO_SPEED_400;
  325.     }
  326.  
  327.     for (res = DC1394_FAILURE; i >= DC1394_ISO_SPEED_MIN && res != DC1394_SUCCESS; i--) {
  328.             res=dc1394_video_set_iso_speed(dc1394->camera, i);
  329.     }
  330.     if (res != DC1394_SUCCESS) {
  331.         av_log(c, AV_LOG_ERROR, "Couldn't set ISO Speed\n");
  332.         goto out_camera;
  333.     }
  334.  
  335.     if (dc1394_video_set_mode(dc1394->camera, fmt->frame_size_id) != DC1394_SUCCESS) {
  336.         av_log(c, AV_LOG_ERROR, "Couldn't set video format\n");
  337.         goto out_camera;
  338.     }
  339.  
  340.     if (dc1394_video_set_framerate(dc1394->camera,fps->frame_rate_id) != DC1394_SUCCESS) {
  341.         av_log(c, AV_LOG_ERROR, "Couldn't set framerate %d \n",fps->frame_rate);
  342.         goto out_camera;
  343.     }
  344.     if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) {
  345.         av_log(c, AV_LOG_ERROR, "Cannot setup camera \n");
  346.         goto out_camera;
  347.     }
  348.  
  349.     if (dc1394_video_set_transmission(dc1394->camera, DC1394_ON) !=DC1394_SUCCESS) {
  350.         av_log(c, AV_LOG_ERROR, "Cannot start capture\n");
  351.         goto out_camera;
  352.     }
  353.     return 0;
  354.  
  355. out_camera:
  356.     dc1394_capture_stop(dc1394->camera);
  357.     dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
  358.     dc1394_camera_free (dc1394->camera);
  359. out:
  360.     dc1394_free(dc1394->d);
  361.     return -1;
  362. }
  363.  
  364. static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt)
  365. {
  366.     struct dc1394_data *dc1394 = c->priv_data;
  367.     int res;
  368.  
  369.     /* discard stale frame */
  370.     if (dc1394->current_frame++) {
  371.         if (dc1394_capture_enqueue(dc1394->camera, dc1394->frame) != DC1394_SUCCESS)
  372.             av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame);
  373.     }
  374.  
  375.     res = dc1394_capture_dequeue(dc1394->camera, DC1394_CAPTURE_POLICY_WAIT, &dc1394->frame);
  376.     if (res == DC1394_SUCCESS) {
  377.         dc1394->packet.data = (uint8_t *) dc1394->frame->image;
  378.         dc1394->packet.pts  = dc1394->current_frame * 1000000 / dc1394->frame_rate;
  379.         res = dc1394->frame->image_bytes;
  380.     } else {
  381.         av_log(c, AV_LOG_ERROR, "DMA capture failed\n");
  382.         dc1394->packet.data = NULL;
  383.         res = -1;
  384.     }
  385.  
  386.     *pkt = dc1394->packet;
  387.     return res;
  388. }
  389.  
  390. static int dc1394_v2_close(AVFormatContext * context)
  391. {
  392.     struct dc1394_data *dc1394 = context->priv_data;
  393.  
  394.     dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
  395.     dc1394_capture_stop(dc1394->camera);
  396.     dc1394_camera_free(dc1394->camera);
  397.     dc1394_free(dc1394->d);
  398.  
  399.     return 0;
  400. }
  401.  
  402. AVInputFormat ff_libdc1394_demuxer = {
  403.     .name           = "libdc1394",
  404.     .long_name      = NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"),
  405.     .priv_data_size = sizeof(struct dc1394_data),
  406.     .read_header    = dc1394_v2_read_header,
  407.     .read_packet    = dc1394_v2_read_packet,
  408.     .read_close     = dc1394_v2_close,
  409.     .flags          = AVFMT_NOFILE,
  410.     .priv_class     = &libdc1394_class,
  411. };
  412.  
  413. #endif
  414. #if HAVE_LIBDC1394_1
  415. AVInputFormat ff_libdc1394_demuxer = {
  416.     .name           = "libdc1394",
  417.     .long_name      = NULL_IF_CONFIG_SMALL("dc1394 v.1 A/V grab"),
  418.     .priv_data_size = sizeof(struct dc1394_data),
  419.     .read_header    = dc1394_v1_read_header,
  420.     .read_packet    = dc1394_v1_read_packet,
  421.     .read_close     = dc1394_v1_close,
  422.     .flags          = AVFMT_NOFILE,
  423.     .priv_class     = &libdc1394_class,
  424. };
  425. #endif
  426.