diff options
Diffstat (limited to 'ffmpeg/libavdevice/libdc1394.c')
| -rw-r--r-- | ffmpeg/libavdevice/libdc1394.c | 420 |
1 files changed, 420 insertions, 0 deletions
diff --git a/ffmpeg/libavdevice/libdc1394.c b/ffmpeg/libavdevice/libdc1394.c new file mode 100644 index 0000000..80cb1be --- /dev/null +++ b/ffmpeg/libavdevice/libdc1394.c @@ -0,0 +1,420 @@ +/* + * 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" +#include "libavformat/avformat.h" +#include "libavformat/internal.h" +#include "libavutil/log.h" +#include "libavutil/mathematics.h" +#include "libavutil/opt.h" +#include "libavutil/parseutils.h" +#include "libavutil/pixdesc.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 + +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; + +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_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 */ +}; + +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, +}; + + +static inline int dc1394_read_common(AVFormatContext *c, + struct dc1394_frame_format **select_fmt, struct dc1394_frame_rate **select_fps) +{ + dc1394_data* dc1394 = c->priv_data; + AVStream* vst; + struct dc1394_frame_format *fmt; + 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 = avpicture_get_size(fmt->pix_fmt, fmt->width, fmt->height); + 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; + 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->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 |