Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * IIDC1394 grab interface (uses libdc1394 and libraw1394) |
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| 3 | * Copyright (c) 2004 Roman Shaposhnik |
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| 4 | * Copyright (c) 2008 Alessandro Sappia |
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| 5 | * |
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| 6 | * This file is part of FFmpeg. |
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| 7 | * |
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| 8 | * FFmpeg is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU Lesser General Public |
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| 10 | * License as published by the Free Software Foundation; either |
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| 11 | * version 2.1 of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * FFmpeg is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 16 | * Lesser General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU Lesser General Public |
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| 19 | * License along with FFmpeg; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 21 | */ |
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| 22 | |||
| 23 | #include "config.h" |
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| 24 | #include "libavformat/avformat.h" |
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| 25 | #include "libavformat/internal.h" |
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| 26 | #include "libavutil/log.h" |
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| 27 | #include "libavutil/mathematics.h" |
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| 28 | #include "libavutil/opt.h" |
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| 29 | #include "libavutil/parseutils.h" |
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| 30 | #include "libavutil/pixdesc.h" |
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| 31 | |||
| 32 | #if HAVE_LIBDC1394_2 |
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| 33 | #include |
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| 34 | #elif HAVE_LIBDC1394_1 |
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| 35 | #include |
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| 36 | #include |
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| 37 | |||
| 38 | #define DC1394_VIDEO_MODE_320x240_YUV422 MODE_320x240_YUV422 |
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| 39 | #define DC1394_VIDEO_MODE_640x480_YUV411 MODE_640x480_YUV411 |
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| 40 | #define DC1394_VIDEO_MODE_640x480_YUV422 MODE_640x480_YUV422 |
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| 41 | #define DC1394_FRAMERATE_1_875 FRAMERATE_1_875 |
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| 42 | #define DC1394_FRAMERATE_3_75 FRAMERATE_3_75 |
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| 43 | #define DC1394_FRAMERATE_7_5 FRAMERATE_7_5 |
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| 44 | #define DC1394_FRAMERATE_15 FRAMERATE_15 |
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| 45 | #define DC1394_FRAMERATE_30 FRAMERATE_30 |
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| 46 | #define DC1394_FRAMERATE_60 FRAMERATE_60 |
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| 47 | #define DC1394_FRAMERATE_120 FRAMERATE_120 |
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| 48 | #define DC1394_FRAMERATE_240 FRAMERATE_240 |
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| 49 | #endif |
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| 50 | |||
| 51 | typedef struct dc1394_data { |
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| 52 | AVClass *class; |
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| 53 | #if HAVE_LIBDC1394_1 |
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| 54 | raw1394handle_t handle; |
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| 55 | dc1394_cameracapture camera; |
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| 56 | int channel; |
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| 57 | #elif HAVE_LIBDC1394_2 |
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| 58 | dc1394_t *d; |
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| 59 | dc1394camera_t *camera; |
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| 60 | dc1394video_frame_t *frame; |
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| 61 | #endif |
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| 62 | int current_frame; |
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| 63 | int frame_rate; /**< frames per 1000 seconds (fps * 1000) */ |
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| 64 | char *video_size; /**< String describing video size, set by a private option. */ |
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| 65 | char *pixel_format; /**< Set by a private option. */ |
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| 66 | char *framerate; /**< Set by a private option. */ |
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| 67 | |||
| 68 | AVPacket packet; |
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| 69 | } dc1394_data; |
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| 70 | |||
| 71 | struct dc1394_frame_format { |
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| 72 | int width; |
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| 73 | int height; |
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| 74 | enum AVPixelFormat pix_fmt; |
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| 75 | int frame_size_id; |
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| 76 | } dc1394_frame_formats[] = { |
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| 77 | { 320, 240, AV_PIX_FMT_UYVY422, DC1394_VIDEO_MODE_320x240_YUV422 }, |
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| 78 | { 640, 480, AV_PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 }, |
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| 79 | { 640, 480, AV_PIX_FMT_UYVY422, DC1394_VIDEO_MODE_640x480_YUV422 }, |
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| 80 | { 0, 0, 0, 0 } /* gotta be the last one */ |
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| 81 | }; |
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| 82 | |||
| 83 | struct dc1394_frame_rate { |
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| 84 | int frame_rate; |
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| 85 | int frame_rate_id; |
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| 86 | } dc1394_frame_rates[] = { |
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| 87 | { 1875, DC1394_FRAMERATE_1_875 }, |
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| 88 | { 3750, DC1394_FRAMERATE_3_75 }, |
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| 89 | { 7500, DC1394_FRAMERATE_7_5 }, |
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| 90 | { 15000, DC1394_FRAMERATE_15 }, |
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| 91 | { 30000, DC1394_FRAMERATE_30 }, |
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| 92 | { 60000, DC1394_FRAMERATE_60 }, |
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| 93 | {120000, DC1394_FRAMERATE_120 }, |
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| 94 | {240000, DC1394_FRAMERATE_240 }, |
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| 95 | { 0, 0 } /* gotta be the last one */ |
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| 96 | }; |
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| 97 | |||
| 98 | #define OFFSET(x) offsetof(dc1394_data, x) |
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| 99 | #define DEC AV_OPT_FLAG_DECODING_PARAM |
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| 100 | static const AVOption options[] = { |
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| 101 | #if HAVE_LIBDC1394_1 |
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| 102 | { "channel", "", offsetof(dc1394_data, channel), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM }, |
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| 103 | #endif |
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| 104 | { "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), AV_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC }, |
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| 105 | { "pixel_format", "", OFFSET(pixel_format), AV_OPT_TYPE_STRING, {.str = "uyvy422"}, 0, 0, DEC }, |
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| 106 | { "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC }, |
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| 107 | { NULL }, |
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| 108 | }; |
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| 109 | |||
| 110 | static const AVClass libdc1394_class = { |
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| 111 | .class_name = "libdc1394 indev", |
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| 112 | .item_name = av_default_item_name, |
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| 113 | .option = options, |
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| 114 | .version = LIBAVUTIL_VERSION_INT, |
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| 115 | }; |
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| 116 | |||
| 117 | |||
| 118 | static inline int dc1394_read_common(AVFormatContext *c, |
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| 119 | struct dc1394_frame_format **select_fmt, struct dc1394_frame_rate **select_fps) |
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| 120 | { |
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| 121 | dc1394_data* dc1394 = c->priv_data; |
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| 122 | AVStream* vst; |
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| 123 | struct dc1394_frame_format *fmt; |
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| 124 | struct dc1394_frame_rate *fps; |
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| 125 | enum AVPixelFormat pix_fmt; |
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| 126 | int width, height; |
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| 127 | AVRational framerate; |
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| 128 | int ret = 0; |
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| 129 | |||
| 130 | if ((pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == AV_PIX_FMT_NONE) { |
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| 131 | av_log(c, AV_LOG_ERROR, "No such pixel format: %s.\n", dc1394->pixel_format); |
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| 132 | ret = AVERROR(EINVAL); |
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| 133 | goto out; |
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| 134 | } |
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| 135 | |||
| 136 | if ((ret = av_parse_video_size(&width, &height, dc1394->video_size)) < 0) { |
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| 137 | av_log(c, AV_LOG_ERROR, "Could not parse video size '%s'.\n", dc1394->video_size); |
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| 138 | goto out; |
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| 139 | } |
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| 140 | if ((ret = av_parse_video_rate(&framerate, dc1394->framerate)) < 0) { |
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| 141 | av_log(c, AV_LOG_ERROR, "Could not parse framerate '%s'.\n", dc1394->framerate); |
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| 142 | goto out; |
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| 143 | } |
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| 144 | dc1394->frame_rate = av_rescale(1000, framerate.num, framerate.den); |
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| 145 | |||
| 146 | for (fmt = dc1394_frame_formats; fmt->width; fmt++) |
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| 147 | if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height) |
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| 148 | break; |
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| 149 | |||
| 150 | for (fps = dc1394_frame_rates; fps->frame_rate; fps++) |
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| 151 | if (fps->frame_rate == dc1394->frame_rate) |
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| 152 | break; |
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| 153 | |||
| 154 | if (!fps->frame_rate || !fmt->width) { |
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| 155 | 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), |
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| 156 | width, height, dc1394->frame_rate); |
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| 157 | ret = AVERROR(EINVAL); |
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| 158 | goto out; |
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| 159 | } |
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| 160 | |||
| 161 | /* create a video stream */ |
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| 162 | vst = avformat_new_stream(c, NULL); |
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| 163 | if (!vst) { |
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| 164 | ret = AVERROR(ENOMEM); |
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| 165 | goto out; |
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| 166 | } |
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| 167 | avpriv_set_pts_info(vst, 64, 1, 1000); |
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| 168 | vst->codec->codec_type = AVMEDIA_TYPE_VIDEO; |
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| 169 | vst->codec->codec_id = AV_CODEC_ID_RAWVIDEO; |
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| 170 | vst->codec->time_base.den = framerate.num; |
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| 171 | vst->codec->time_base.num = framerate.den; |
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| 172 | vst->codec->width = fmt->width; |
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| 173 | vst->codec->height = fmt->height; |
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| 174 | vst->codec->pix_fmt = fmt->pix_fmt; |
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| 175 | |||
| 176 | /* packet init */ |
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| 177 | av_init_packet(&dc1394->packet); |
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| 178 | dc1394->packet.size = avpicture_get_size(fmt->pix_fmt, fmt->width, fmt->height); |
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| 179 | dc1394->packet.stream_index = vst->index; |
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| 180 | dc1394->packet.flags |= AV_PKT_FLAG_KEY; |
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| 181 | |||
| 182 | dc1394->current_frame = 0; |
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| 183 | |||
| 184 | vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, fps->frame_rate, 1000); |
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| 185 | *select_fps = fps; |
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| 186 | *select_fmt = fmt; |
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| 187 | out: |
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| 188 | return ret; |
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| 189 | } |
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| 190 | |||
| 191 | #if HAVE_LIBDC1394_1 |
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| 192 | static int dc1394_v1_read_header(AVFormatContext *c) |
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| 193 | { |
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| 194 | dc1394_data* dc1394 = c->priv_data; |
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| 195 | AVStream* vst; |
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| 196 | nodeid_t* camera_nodes; |
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| 197 | int res; |
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| 198 | struct dc1394_frame_format *fmt = NULL; |
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| 199 | struct dc1394_frame_rate *fps = NULL; |
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| 200 | |||
| 201 | if (dc1394_read_common(c, &fmt, &fps) != 0) |
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| 202 | return -1; |
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| 203 | |||
| 204 | /* Now let us prep the hardware. */ |
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| 205 | dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */ |
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| 206 | if (!dc1394->handle) { |
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| 207 | av_log(c, AV_LOG_ERROR, "Can't acquire dc1394 handle on port %d\n", 0 /* ap->port */); |
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| 208 | goto out; |
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| 209 | } |
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| 210 | camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1); |
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| 211 | if (!camera_nodes || camera_nodes[dc1394->channel] == DC1394_NO_CAMERA) { |
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| 212 | av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", dc1394->channel); |
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| 213 | goto out_handle; |
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| 214 | } |
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| 215 | res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[dc1394->channel], |
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| 216 | 0, |
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| 217 | FORMAT_VGA_NONCOMPRESSED, |
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| 218 | fmt->frame_size_id, |
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| 219 | SPEED_400, |
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| 220 | fps->frame_rate_id, 8, 1, |
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| 221 | c->filename, |
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| 222 | &dc1394->camera); |
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| 223 | dc1394_free_camera_nodes(camera_nodes); |
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| 224 | if (res != DC1394_SUCCESS) { |
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| 225 | av_log(c, AV_LOG_ERROR, "Can't prepare camera for the DMA capture\n"); |
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| 226 | goto out_handle; |
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| 227 | } |
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| 228 | |||
| 229 | res = dc1394_start_iso_transmission(dc1394->handle, dc1394->camera.node); |
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| 230 | if (res != DC1394_SUCCESS) { |
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| 231 | av_log(c, AV_LOG_ERROR, "Can't start isochronous transmission\n"); |
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| 232 | goto out_handle_dma; |
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| 233 | } |
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| 234 | |||
| 235 | return 0; |
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| 236 | |||
| 237 | out_handle_dma: |
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| 238 | dc1394_dma_unlisten(dc1394->handle, &dc1394->camera); |
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| 239 | dc1394_dma_release_camera(dc1394->handle, &dc1394->camera); |
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| 240 | out_handle: |
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| 241 | dc1394_destroy_handle(dc1394->handle); |
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| 242 | out: |
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| 243 | return -1; |
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| 244 | } |
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| 245 | |||
| 246 | static int dc1394_v1_read_packet(AVFormatContext *c, AVPacket *pkt) |
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| 247 | { |
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| 248 | struct dc1394_data *dc1394 = c->priv_data; |
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| 249 | int res; |
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| 250 | |||
| 251 | /* discard stale frame */ |
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| 252 | if (dc1394->current_frame++) { |
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| 253 | if (dc1394_dma_done_with_buffer(&dc1394->camera) != DC1394_SUCCESS) |
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| 254 | av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame); |
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| 255 | } |
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| 256 | |||
| 257 | res = dc1394_dma_single_capture(&dc1394->camera); |
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| 258 | |||
| 259 | if (res == DC1394_SUCCESS) { |
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| 260 | dc1394->packet.data = (uint8_t *)(dc1394->camera.capture_buffer); |
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| 261 | dc1394->packet.pts = (dc1394->current_frame * 1000000) / dc1394->frame_rate; |
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| 262 | res = dc1394->packet.size; |
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| 263 | } else { |
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| 264 | av_log(c, AV_LOG_ERROR, "DMA capture failed\n"); |
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| 265 | dc1394->packet.data = NULL; |
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| 266 | res = -1; |
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| 267 | } |
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| 268 | |||
| 269 | *pkt = dc1394->packet; |
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| 270 | return res; |
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| 271 | } |
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| 272 | |||
| 273 | static int dc1394_v1_close(AVFormatContext * context) |
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| 274 | { |
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| 275 | struct dc1394_data *dc1394 = context->priv_data; |
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| 276 | |||
| 277 | dc1394_stop_iso_transmission(dc1394->handle, dc1394->camera.node); |
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| 278 | dc1394_dma_unlisten(dc1394->handle, &dc1394->camera); |
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| 279 | dc1394_dma_release_camera(dc1394->handle, &dc1394->camera); |
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| 280 | dc1394_destroy_handle(dc1394->handle); |
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| 281 | |||
| 282 | return 0; |
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| 283 | } |
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| 284 | |||
| 285 | #elif HAVE_LIBDC1394_2 |
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| 286 | static int dc1394_v2_read_header(AVFormatContext *c) |
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| 287 | { |
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| 288 | dc1394_data* dc1394 = c->priv_data; |
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| 289 | dc1394camera_list_t *list; |
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| 290 | int res, i; |
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| 291 | struct dc1394_frame_format *fmt = NULL; |
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| 292 | struct dc1394_frame_rate *fps = NULL; |
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| 293 | |||
| 294 | if (dc1394_read_common(c, &fmt, &fps) != 0) |
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| 295 | return -1; |
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| 296 | |||
| 297 | /* Now let us prep the hardware. */ |
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| 298 | dc1394->d = dc1394_new(); |
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| 299 | dc1394_camera_enumerate (dc1394->d, &list); |
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| 300 | if ( !list || list->num == 0) { |
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| 301 | av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera\n\n"); |
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| 302 | goto out; |
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| 303 | } |
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| 304 | |||
| 305 | /* FIXME: To select a specific camera I need to search in list its guid */ |
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| 306 | dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid); |
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| 307 | if (list->num > 1) { |
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| 308 | av_log(c, AV_LOG_INFO, "Working with the first camera found\n"); |
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| 309 | } |
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| 310 | |||
| 311 | /* Freeing list of cameras */ |
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| 312 | dc1394_camera_free_list (list); |
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| 313 | |||
| 314 | /* Select MAX Speed possible from the cam */ |
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| 315 | if (dc1394->camera->bmode_capable>0) { |
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| 316 | dc1394_video_set_operation_mode(dc1394->camera, DC1394_OPERATION_MODE_1394B); |
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| 317 | i = DC1394_ISO_SPEED_800; |
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| 318 | } else { |
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| 319 | i = DC1394_ISO_SPEED_400; |
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| 320 | } |
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| 321 | |||
| 322 | for (res = DC1394_FAILURE; i >= DC1394_ISO_SPEED_MIN && res != DC1394_SUCCESS; i--) { |
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| 323 | res=dc1394_video_set_iso_speed(dc1394->camera, i); |
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| 324 | } |
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| 325 | if (res != DC1394_SUCCESS) { |
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| 326 | av_log(c, AV_LOG_ERROR, "Couldn't set ISO Speed\n"); |
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| 327 | goto out_camera; |
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| 328 | } |
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| 329 | |||
| 330 | if (dc1394_video_set_mode(dc1394->camera, fmt->frame_size_id) != DC1394_SUCCESS) { |
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| 331 | av_log(c, AV_LOG_ERROR, "Couldn't set video format\n"); |
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| 332 | goto out_camera; |
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| 333 | } |
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| 334 | |||
| 335 | if (dc1394_video_set_framerate(dc1394->camera,fps->frame_rate_id) != DC1394_SUCCESS) { |
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| 336 | av_log(c, AV_LOG_ERROR, "Couldn't set framerate %d \n",fps->frame_rate); |
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| 337 | goto out_camera; |
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| 338 | } |
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| 339 | if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) { |
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| 340 | av_log(c, AV_LOG_ERROR, "Cannot setup camera \n"); |
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| 341 | goto out_camera; |
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| 342 | } |
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| 343 | |||
| 344 | if (dc1394_video_set_transmission(dc1394->camera, DC1394_ON) !=DC1394_SUCCESS) { |
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| 345 | av_log(c, AV_LOG_ERROR, "Cannot start capture\n"); |
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| 346 | goto out_camera; |
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| 347 | } |
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| 348 | return 0; |
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| 349 | |||
| 350 | out_camera: |
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| 351 | dc1394_capture_stop(dc1394->camera); |
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| 352 | dc1394_video_set_transmission(dc1394->camera, DC1394_OFF); |
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| 353 | dc1394_camera_free (dc1394->camera); |
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| 354 | out: |
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| 355 | dc1394_free(dc1394->d); |
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| 356 | return -1; |
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| 357 | } |
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| 358 | |||
| 359 | static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt) |
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| 360 | { |
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| 361 | struct dc1394_data *dc1394 = c->priv_data; |
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| 362 | int res; |
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| 363 | |||
| 364 | /* discard stale frame */ |
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| 365 | if (dc1394->current_frame++) { |
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| 366 | if (dc1394_capture_enqueue(dc1394->camera, dc1394->frame) != DC1394_SUCCESS) |
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| 367 | av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame); |
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| 368 | } |
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| 369 | |||
| 370 | res = dc1394_capture_dequeue(dc1394->camera, DC1394_CAPTURE_POLICY_WAIT, &dc1394->frame); |
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| 371 | if (res == DC1394_SUCCESS) { |
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| 372 | dc1394->packet.data = (uint8_t *) dc1394->frame->image; |
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| 373 | dc1394->packet.pts = dc1394->current_frame * 1000000 / dc1394->frame_rate; |
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| 374 | res = dc1394->frame->image_bytes; |
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| 375 | } else { |
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| 376 | av_log(c, AV_LOG_ERROR, "DMA capture failed\n"); |
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| 377 | dc1394->packet.data = NULL; |
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| 378 | res = -1; |
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| 379 | } |
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| 380 | |||
| 381 | *pkt = dc1394->packet; |
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| 382 | return res; |
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| 383 | } |
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| 384 | |||
| 385 | static int dc1394_v2_close(AVFormatContext * context) |
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| 386 | { |
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| 387 | struct dc1394_data *dc1394 = context->priv_data; |
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| 388 | |||
| 389 | dc1394_video_set_transmission(dc1394->camera, DC1394_OFF); |
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| 390 | dc1394_capture_stop(dc1394->camera); |
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| 391 | dc1394_camera_free(dc1394->camera); |
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| 392 | dc1394_free(dc1394->d); |
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| 393 | |||
| 394 | return 0; |
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| 395 | } |
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| 396 | |||
| 397 | AVInputFormat ff_libdc1394_demuxer = { |
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| 398 | .name = "libdc1394", |
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| 399 | .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"), |
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| 400 | .priv_data_size = sizeof(struct dc1394_data), |
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| 401 | .read_header = dc1394_v2_read_header, |
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| 402 | .read_packet = dc1394_v2_read_packet, |
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| 403 | .read_close = dc1394_v2_close, |
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| 404 | .flags = AVFMT_NOFILE, |
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| 405 | .priv_class = &libdc1394_class, |
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| 406 | }; |
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| 407 | |||
| 408 | #endif |
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| 409 | #if HAVE_LIBDC1394_1 |
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| 410 | AVInputFormat ff_libdc1394_demuxer = { |
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| 411 | .name = "libdc1394", |
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| 412 | .long_name = NULL_IF_CONFIG_SMALL("dc1394 v.1 A/V grab"), |
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| 413 | .priv_data_size = sizeof(struct dc1394_data), |
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| 414 | .read_header = dc1394_v1_read_header, |
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| 415 | .read_packet = dc1394_v1_read_packet, |
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| 416 | .read_close = dc1394_v1_close, |
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| 417 | .flags = AVFMT_NOFILE, |
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| 418 | .priv_class = &libdc1394_class, |
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| 419 | }; |
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| 420 | #endif |