diff options
Diffstat (limited to 'libavdevice/libdc1394.c')
| -rw-r--r-- | libavdevice/libdc1394.c | 422 |
1 files changed, 186 insertions, 236 deletions
diff --git a/libavdevice/libdc1394.c b/libavdevice/libdc1394.c index ac4bb093d4..a8d41f9c16 100644 --- a/libavdevice/libdc1394.c +++ b/libavdevice/libdc1394.c @@ -2,65 +2,46 @@ * IIDC1394 grab interface (uses libdc1394 and libraw1394) * Copyright (c) 2004 Roman Shaposhnik * Copyright (c) 2008 Alessandro Sappia + * Copyright (c) 2011 Martin Lambers * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * 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 "avdevice.h" + +#include <stdlib.h> +#include <string.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 #undef free 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. */ @@ -70,16 +51,21 @@ typedef struct dc1394_data { AVPacket packet; } dc1394_data; -struct dc1394_frame_format { - int width; - int height; - enum PixelFormat pix_fmt; - int frame_size_id; -} dc1394_frame_formats[] = { - { 320, 240, PIX_FMT_UYVY422, DC1394_VIDEO_MODE_320x240_YUV422 }, - { 640, 480, PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 }, - { 640, 480, PIX_FMT_UYVY422, DC1394_VIDEO_MODE_640x480_YUV422 }, - { 0, 0, 0, 0 } /* gotta be the last one */ +/* The list of color codings that we support. + * We assume big endian for the dc1394 16bit modes: libdc1394 never sets the + * flag little_endian in dc1394video_frame_t. */ +struct dc1394_color_coding { + int pix_fmt; + int score; + uint32_t coding; +} dc1394_color_codings[] = { + { PIX_FMT_GRAY16BE, 1000, DC1394_COLOR_CODING_MONO16 }, + { PIX_FMT_RGB48BE, 1100, DC1394_COLOR_CODING_RGB16 }, + { PIX_FMT_GRAY8, 1200, DC1394_COLOR_CODING_MONO8 }, + { PIX_FMT_RGB24, 1300, DC1394_COLOR_CODING_RGB8 }, + { PIX_FMT_UYYVYY411, 1400, DC1394_COLOR_CODING_YUV411 }, + { PIX_FMT_UYVY422, 1500, DC1394_COLOR_CODING_YUV422 }, + { PIX_FMT_NONE, 0, 0 } /* gotta be the last one */ }; struct dc1394_frame_rate { @@ -100,9 +86,6 @@ struct dc1394_frame_rate { #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, {.dbl = 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 }, @@ -116,202 +99,183 @@ static const AVClass libdc1394_class = { .version = LIBAVUTIL_VERSION_INT, }; - -static inline int dc1394_read_common(AVFormatContext *c, AVFormatParameters *ap, - struct dc1394_frame_format **select_fmt, struct dc1394_frame_rate **select_fps) +static int dc1394_read_header(AVFormatContext *c, AVFormatParameters * ap) { dc1394_data* dc1394 = c->priv_data; - AVStream* vst; - struct dc1394_frame_format *fmt; - struct dc1394_frame_rate *fps; - enum PixelFormat pix_fmt; - int width, height; - AVRational framerate; - int ret = 0; - - if ((pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == PIX_FMT_NONE) { - av_log(c, AV_LOG_ERROR, "No such pixel format: %s.\n", dc1394->pixel_format); - ret = AVERROR(EINVAL); + AVStream *vst; + const struct dc1394_color_coding *cc; + const struct dc1394_frame_rate *fr; + dc1394camera_list_t *list; + dc1394video_modes_t video_modes; + dc1394video_mode_t video_mode; + dc1394framerates_t frame_rates; + dc1394framerate_t frame_rate; + uint32_t dc1394_width, dc1394_height, dc1394_color_coding; + int rate, best_rate; + int score, max_score; + int final_width, final_height, final_pix_fmt, final_frame_rate; + int res, i, j; + int ret=-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; } - 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; + /* 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"); } - 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; + + /* Freeing list of cameras */ + dc1394_camera_free_list (list); + + /* Get the list of video modes supported by the camera. */ + res = dc1394_video_get_supported_modes (dc1394->camera, &video_modes); + if (res != DC1394_SUCCESS) { + av_log(c, AV_LOG_ERROR, "Could not get video formats.\n"); + goto out_camera; } - 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; + if (dc1394->pixel_format) { + if ((ap->pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == PIX_FMT_NONE) { + av_log(c, AV_LOG_ERROR, "No such pixel format: %s.\n", dc1394->pixel_format); + ret = AVERROR(EINVAL); + goto out; + } + } - for (fps = dc1394_frame_rates; fps->frame_rate; fps++) - if (fps->frame_rate == dc1394->frame_rate) - break; + if (dc1394->video_size) { + if ((ret = av_parse_video_size(&ap->width, &ap->height, dc1394->video_size)) < 0) { + av_log(c, AV_LOG_ERROR, "Couldn't parse video size.\n"); + goto out; + } + } - 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; + /* Choose the best mode. */ + rate = (ap->time_base.num ? av_rescale(1000, ap->time_base.den, ap->time_base.num) : -1); + max_score = -1; + for (i = 0; i < video_modes.num; i++) { + if (video_modes.modes[i] == DC1394_VIDEO_MODE_EXIF + || (video_modes.modes[i] >= DC1394_VIDEO_MODE_FORMAT7_MIN + && video_modes.modes[i] <= DC1394_VIDEO_MODE_FORMAT7_MAX)) { + /* These modes are currently not supported as they would require + * much more work. For the remaining modes, the functions + * dc1394_get_image_size_from_video_mode and + * dc1394_get_color_coding_from_video_mode do not need to query the + * camera, and thus cannot fail. */ + continue; + } + dc1394_get_color_coding_from_video_mode (NULL, video_modes.modes[i], + &dc1394_color_coding); + for (cc = dc1394_color_codings; cc->pix_fmt != PIX_FMT_NONE; cc++) + if (cc->coding == dc1394_color_coding) + break; + if (cc->pix_fmt == PIX_FMT_NONE) { + /* We currently cannot handle this color coding. */ + continue; + } + /* Here we know that the mode is supported. Get its frame size and the list + * of frame rates supported by the camera for this mode. This list is sorted + * in ascending order according to libdc1394 example programs. */ + dc1394_get_image_size_from_video_mode (NULL, video_modes.modes[i], + &dc1394_width, &dc1394_height); + res = dc1394_video_get_supported_framerates (dc1394->camera, video_modes.modes[i], + &frame_rates); + if (res != DC1394_SUCCESS || frame_rates.num == 0) { + av_log(c, AV_LOG_ERROR, "Cannot get frame rates for video mode.\n"); + goto out_camera; + } + /* Choose the best frame rate. */ + best_rate = -1; + for (j = 0; j < frame_rates.num; j++) { + for (fr = dc1394_frame_rates; fr->frame_rate; fr++) { + if (fr->frame_rate_id == frame_rates.framerates[j]) { + break; + } + } + if (!fr->frame_rate) { + /* This frame rate is not supported. */ + continue; + } + best_rate = fr->frame_rate; + frame_rate = fr->frame_rate_id; + if (ap->time_base.num && rate == fr->frame_rate) { + /* This is the requested frame rate. */ + break; + } + } + if (best_rate == -1) { + /* No supported rate found. */ + continue; + } + /* Here we know that both the mode and the rate are supported. Compute score. */ + if (ap->width && ap->height + && (dc1394_width == ap->width && dc1394_height == ap->height)) { + score = 110000; + } else { + score = dc1394_width * 10; // 1600 - 16000 + } + if (ap->pix_fmt == cc->pix_fmt) { + score += 90000; + } else { + score += cc->score; // 1000 - 1500 + } + if (ap->time_base.num && rate == best_rate) { + score += 70000; + } else { + score += best_rate / 1000; // 1 - 240 + } + if (score > max_score) { + video_mode = video_modes.modes[i]; + final_width = dc1394_width; + final_height = dc1394_height; + final_pix_fmt = cc->pix_fmt; + final_frame_rate = best_rate; + max_score = score; + } + } + if (max_score == -1) { + av_log(c, AV_LOG_ERROR, "No suitable video mode / frame rate available.\n"); + goto out_camera; + } + if (ap->width && ap->height && !(ap->width == final_width && ap->height == final_height)) { + av_log(c, AV_LOG_WARNING, "Requested frame size is not available, using fallback.\n"); + } + if (ap->pix_fmt != PIX_FMT_NONE && ap->pix_fmt != final_pix_fmt) { + av_log(c, AV_LOG_WARNING, "Requested pixel format is not supported, using fallback.\n"); + } + if (ap->time_base.num && rate != final_frame_rate) { + av_log(c, AV_LOG_WARNING, "Requested frame rate is not available, using fallback.\n"); } /* create a video stream */ vst = avformat_new_stream(c, NULL); - if (!vst) { - ret = AVERROR(ENOMEM); - goto out; - } + if (!vst) + goto out_camera; avpriv_set_pts_info(vst, 64, 1, 1000); vst->codec->codec_type = AVMEDIA_TYPE_VIDEO; vst->codec->codec_id = 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; + vst->codec->time_base.den = final_frame_rate; + vst->codec->time_base.num = 1000; + vst->codec->width = final_width; + vst->codec->height = final_height; + vst->codec->pix_fmt = final_pix_fmt; /* packet init */ av_init_packet(&dc1394->packet); - dc1394->packet.size = avpicture_get_size(fmt->pix_fmt, fmt->width, fmt->height); + dc1394->packet.size = avpicture_get_size(final_pix_fmt, final_width, final_height); dc1394->packet.stream_index = vst->index; dc1394->packet.flags |= AV_PKT_FLAG_KEY; dc1394->current_frame = 0; + dc1394->frame_rate = final_frame_rate; - 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, AVFormatParameters * ap) -{ - 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,ap,&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, AVFormatParameters * ap) -{ - 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,ap,&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); + vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, final_frame_rate, 1000); /* Select MAX Speed possible from the cam */ if (dc1394->camera->bmode_capable>0) { @@ -329,13 +293,13 @@ static int dc1394_v2_read_header(AVFormatContext *c, AVFormatParameters * ap) goto out_camera; } - if (dc1394_video_set_mode(dc1394->camera, fmt->frame_size_id) != DC1394_SUCCESS) { + if (dc1394_video_set_mode(dc1394->camera, video_mode) != 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); + if (dc1394_video_set_framerate(dc1394->camera, frame_rate) != DC1394_SUCCESS) { + av_log(c, AV_LOG_ERROR, "Could not set framerate %d.\n", final_frame_rate); goto out_camera; } if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) { @@ -355,10 +319,10 @@ out_camera: dc1394_camera_free (dc1394->camera); out: dc1394_free(dc1394->d); - return -1; + return ret; } -static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt) +static int dc1394_read_packet(AVFormatContext *c, AVPacket *pkt) { struct dc1394_data *dc1394 = c->priv_data; int res; @@ -384,7 +348,7 @@ static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt) return res; } -static int dc1394_v2_close(AVFormatContext * context) +static int dc1394_close(AVFormatContext * context) { struct dc1394_data *dc1394 = context->priv_data; @@ -398,25 +362,11 @@ static int dc1394_v2_close(AVFormatContext * context) 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"), + .long_name = NULL_IF_CONFIG_SMALL("dc1394 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, + .read_header = dc1394_read_header, + .read_packet = dc1394_read_packet, + .read_close = dc1394_close, .flags = AVFMT_NOFILE, .priv_class = &libdc1394_class, }; -#endif |