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libdc1394: add a private option for channel.

This commit is contained in:
Anton Khirnov 2011-05-23 22:01:36 +02:00
parent 986f4f4918
commit 79405e57dc
1 changed files with 27 additions and 4 deletions
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31
libavdevice/libdc1394.c
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@ -22,6 +22,8 @@
#include "config.h"
#include "libavformat/avformat.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#if HAVE_LIBDC1394_2
#include <dc1394/dc1394.h>
@ -45,9 +47,11 @@
#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;
@ -155,6 +159,9 @@ static int dc1394_v1_read_header(AVFormatContext *c, AVFormatParameters * ap)
if (dc1394_read_common(c,ap,&fmt,&fps) != 0)
return -1;
if (ap->channel)
dc1394->channel = ap->channel;
/* Now let us prep the hardware. */
dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */
if (!dc1394->handle) {
@ -162,11 +169,11 @@ static int dc1394_v1_read_header(AVFormatContext *c, AVFormatParameters * ap)
goto out;
}
camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1);
if (!camera_nodes || camera_nodes[ap->channel] == DC1394_NO_CAMERA) {
av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", ap->channel);
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[ap->channel],
res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[dc1394->channel],
0,
FORMAT_VGA_NONCOMPRESSED,
fmt->frame_size_id,
@ -236,6 +243,20 @@ static int dc1394_v1_close(AVFormatContext * context)
return 0;
}
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
{ NULL },
};
static const AVClass libdc1394_class = {
.class_name = "libdc1394 indev",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
#elif HAVE_LIBDC1394_2
static int dc1394_v2_read_header(AVFormatContext *c, AVFormatParameters * ap)
{
@ -356,6 +377,7 @@ AVInputFormat ff_libdc1394_demuxer = {
.read_packet = dc1394_v2_read_packet,
.read_close = dc1394_v2_close,
.flags = AVFMT_NOFILE
.priv_class = &libdc1394_class,
};
#endif
@ -367,6 +389,7 @@ AVInputFormat ff_libdc1394_demuxer = {
.read_header = dc1394_v1_read_header,
.read_packet = dc1394_v1_read_packet,
.read_close = dc1394_v1_close,
.flags = AVFMT_NOFILE
.flags = AVFMT_NOFILE,
.priv_class = &libdc1394_class,
};
#endif