* 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 "libavutil/log.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 fps;
char *video_size; /**< String describing video size, set by a private option. */
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 {
#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), FF_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), FF_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC },
{ "pixel_format", "", OFFSET(pixel_format), FF_OPT_TYPE_STRING, {.str = "uyvy422"}, 0, 0, DEC },
{ NULL },
.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;
- int frame_rate = !ap->time_base.num ? 30000 : av_rescale(1000, ap->time_base.den, ap->time_base.num);
- 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, "Couldn't parse video size.\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");
}
-#if FF_API_FORMAT_PARAMETERS
- if (ap->width > 0)
- width = ap->width;
- if (ap->height > 0)
- height = ap->height;
- if (ap->pix_fmt)
- pix_fmt = ap->pix_fmt;
-#endif
-
- 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 == 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", avcodec_get_pix_fmt_name(pix_fmt),
- width, height, frame_rate);
- ret = AVERROR(EINVAL);
- 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;
+ }
+
+ 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;
+ }
+ }
+
+ 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;
+ }
+ }
+
+ /* 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 = av_new_stream(c, 0);
- if (!vst) {
- ret = AVERROR(ENOMEM);
- goto out;
- }
+ if (!vst)
+ goto out_camera;
av_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 = fps->frame_rate;
+ vst->codec->time_base.den = final_frame_rate;
vst->codec->time_base.num = 1000;
- vst->codec->width = fmt->width;
- vst->codec->height = fmt->height;
- vst->codec->pix_fmt = fmt->pix_fmt;
+ 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->fps = fps->frame_rate;
-
- vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, fps->frame_rate, 1000);
- *select_fps = fps;
- *select_fmt = fmt;
-out:
- av_freep(&dc1394->video_size);
- av_freep(&dc1394->pixel_format);
- 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;
-
-#if FF_API_FORMAT_PARAMETERS
- if (ap->channel)
- dc1394->channel = ap->channel;
-#endif
-
- /* 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->fps;
- 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");
- }
+ dc1394->fps = final_frame_rate;
- /* 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) {
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) {
dc1394_video_set_transmission(dc1394->camera, DC1394_OFF);
dc1394_camera_free (dc1394->camera);
out:
+ av_freep(&dc1394->video_size);
+ av_freep(&dc1394->pixel_format);
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;
return res;
}
-static int dc1394_v2_close(AVFormatContext * context)
+static int dc1394_close(AVFormatContext * context)
{
struct dc1394_data *dc1394 = context->priv_data;
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
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