| /* |
| * 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 "config.h" |
| |
| #if HAVE_LIBDC1394_2 |
| #include <dc1394/dc1394.h> |
| #elif HAVE_LIBDC1394_1 |
| #include <libraw1394/raw1394.h> |
| #include <libdc1394/dc1394_control.h> |
| |
| #define DC1394_VIDEO_MODE_320x240_YUV422 MODE_320x240_YUV422 |
| #define DC1394_VIDEO_MODE_640x480_YUV411 MODE_640x480_YUV411 |
| #define DC1394_VIDEO_MODE_640x480_YUV422 MODE_640x480_YUV422 |
| #define DC1394_FRAMERATE_1_875 FRAMERATE_1_875 |
| #define DC1394_FRAMERATE_3_75 FRAMERATE_3_75 |
| #define DC1394_FRAMERATE_7_5 FRAMERATE_7_5 |
| #define DC1394_FRAMERATE_15 FRAMERATE_15 |
| #define DC1394_FRAMERATE_30 FRAMERATE_30 |
| #define DC1394_FRAMERATE_60 FRAMERATE_60 |
| #define DC1394_FRAMERATE_120 FRAMERATE_120 |
| #define DC1394_FRAMERATE_240 FRAMERATE_240 |
| #endif |
| |
| #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; |
| #if HAVE_LIBDC1394_1 |
| raw1394handle_t handle; |
| dc1394_cameracapture camera; |
| int channel; |
| #elif HAVE_LIBDC1394_2 |
| dc1394_t *d; |
| dc1394camera_t *camera; |
| dc1394video_frame_t *frame; |
| #endif |
| 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. */ |
| |
| AVPacket packet; |
| } 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[] = { |
| #if HAVE_LIBDC1394_1 |
| { "channel", "", offsetof(dc1394_data, channel), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM }, |
| #endif |
| { "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->codec->codec_type = AVMEDIA_TYPE_VIDEO; |
| vst->codec->codec_id = AV_CODEC_ID_RAWVIDEO; |
| vst->codec->time_base.den = framerate.num; |
| vst->codec->time_base.num = framerate.den; |
| vst->codec->width = fmt->width; |
| vst->codec->height = fmt->height; |
| vst->codec->pix_fmt = fmt->pix_fmt; |
| |
| /* packet init */ |
| av_init_packet(&dc1394->packet); |
| dc1394->packet.size = av_image_get_buffer_size(fmt->pix_fmt, |
| fmt->width, fmt->height, 1); |
| dc1394->packet.stream_index = vst->index; |
| dc1394->packet.flags |= AV_PKT_FLAG_KEY; |
| |
| dc1394->current_frame = 0; |
| |
| vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, fps->frame_rate, 1000); |
| *select_fps = fps; |
| *select_fmt = fmt; |
| out: |
| return ret; |
| } |
| |
| #if HAVE_LIBDC1394_1 |
| static int dc1394_v1_read_header(AVFormatContext *c) |
| { |
| dc1394_data* dc1394 = c->priv_data; |
| AVStream* vst; |
| nodeid_t* camera_nodes; |
| int res; |
| struct dc1394_frame_format *fmt = NULL; |
| struct dc1394_frame_rate *fps = NULL; |
| |
| if (dc1394_read_common(c, &fmt, &fps) != 0) |
| return -1; |
| |
| /* Now let us prep the hardware. */ |
| dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */ |
| if (!dc1394->handle) { |
| av_log(c, AV_LOG_ERROR, "Can't acquire dc1394 handle on port %d\n", 0 /* ap->port */); |
| goto out; |
| } |
| camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1); |
| if (!camera_nodes || camera_nodes[dc1394->channel] == DC1394_NO_CAMERA) { |
| av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", dc1394->channel); |
| goto out_handle; |
| } |
| res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[dc1394->channel], |
| 0, |
| FORMAT_VGA_NONCOMPRESSED, |
| fmt->frame_size_id, |
| SPEED_400, |
| fps->frame_rate_id, 8, 1, |
| c->filename, |
| &dc1394->camera); |
| dc1394_free_camera_nodes(camera_nodes); |
| if (res != DC1394_SUCCESS) { |
| av_log(c, AV_LOG_ERROR, "Can't prepare camera for the DMA capture\n"); |
| goto out_handle; |
| } |
| |
| res = dc1394_start_iso_transmission(dc1394->handle, dc1394->camera.node); |
| if (res != DC1394_SUCCESS) { |
| av_log(c, AV_LOG_ERROR, "Can't start isochronous transmission\n"); |
| goto out_handle_dma; |
| } |
| |
| return 0; |
| |
| out_handle_dma: |
| dc1394_dma_unlisten(dc1394->handle, &dc1394->camera); |
| dc1394_dma_release_camera(dc1394->handle, &dc1394->camera); |
| out_handle: |
| dc1394_destroy_handle(dc1394->handle); |
| out: |
| return -1; |
| } |
| |
| static int dc1394_v1_read_packet(AVFormatContext *c, AVPacket *pkt) |
| { |
| struct dc1394_data *dc1394 = c->priv_data; |
| int res; |
| |
| /* discard stale frame */ |
| if (dc1394->current_frame++) { |
| if (dc1394_dma_done_with_buffer(&dc1394->camera) != DC1394_SUCCESS) |
| av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame); |
| } |
| |
| res = dc1394_dma_single_capture(&dc1394->camera); |
| |
| if (res == DC1394_SUCCESS) { |
| dc1394->packet.data = (uint8_t *)(dc1394->camera.capture_buffer); |
| dc1394->packet.pts = (dc1394->current_frame * 1000000) / dc1394->frame_rate; |
| res = dc1394->packet.size; |
| } else { |
| av_log(c, AV_LOG_ERROR, "DMA capture failed\n"); |
| dc1394->packet.data = NULL; |
| res = -1; |
| } |
| |
| *pkt = dc1394->packet; |
| return res; |
| } |
| |
| static int dc1394_v1_close(AVFormatContext * context) |
| { |
| struct dc1394_data *dc1394 = context->priv_data; |
| |
| dc1394_stop_iso_transmission(dc1394->handle, dc1394->camera.node); |
| dc1394_dma_unlisten(dc1394->handle, &dc1394->camera); |
| dc1394_dma_release_camera(dc1394->handle, &dc1394->camera); |
| dc1394_destroy_handle(dc1394->handle); |
| |
| return 0; |
| } |
| |
| #elif HAVE_LIBDC1394_2 |
| static int dc1394_v2_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(); |
| dc1394_camera_enumerate (dc1394->d, &list); |
| if ( !list || list->num == 0) { |
| av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera\n\n"); |
| 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 (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_v2_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) { |
| dc1394->packet.data = (uint8_t *) dc1394->frame->image; |
| dc1394->packet.pts = dc1394->current_frame * 1000000 / dc1394->frame_rate; |
| res = dc1394->frame->image_bytes; |
| } else { |
| av_log(c, AV_LOG_ERROR, "DMA capture failed\n"); |
| dc1394->packet.data = NULL; |
| res = -1; |
| } |
| |
| *pkt = dc1394->packet; |
| return res; |
| } |
| |
| static int dc1394_v2_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_v2_read_header, |
| .read_packet = dc1394_v2_read_packet, |
| .read_close = dc1394_v2_close, |
| .flags = AVFMT_NOFILE, |
| .priv_class = &libdc1394_class, |
| }; |
| |
| #endif |
| #if HAVE_LIBDC1394_1 |
| AVInputFormat ff_libdc1394_demuxer = { |
| .name = "libdc1394", |
| .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.1 A/V grab"), |
| .priv_data_size = sizeof(struct dc1394_data), |
| .read_header = dc1394_v1_read_header, |
| .read_packet = dc1394_v1_read_packet, |
| .read_close = dc1394_v1_close, |
| .flags = AVFMT_NOFILE, |
| .priv_class = &libdc1394_class, |
| }; |
| #endif |
