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@@ -2,6 +2,7 @@ |
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* IIDC1394 grab interface (uses libdc1394 and libraw1394) |
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* Copyright (c) 2004 Roman Shaposhnik |
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* Copyright (c) 2008 Alessandro Sappia |
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* Copyright (c) 2011 Martin Lambers |
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* |
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* This file is part of FFmpeg. |
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* |
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@@ -21,44 +22,24 @@ |
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*/ |
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#include "config.h" |
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#include "libavformat/avformat.h" |
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#include "libavutil/log.h" |
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#include "libavutil/opt.h" |
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#include "avdevice.h" |
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#include <stdlib.h> |
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#include <string.h> |
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#include "libavutil/parseutils.h" |
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#include "libavutil/pixdesc.h" |
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#if HAVE_LIBDC1394_2 |
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#include <dc1394/dc1394.h> |
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#elif HAVE_LIBDC1394_1 |
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#include <libraw1394/raw1394.h> |
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#include <libdc1394/dc1394_control.h> |
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#define DC1394_VIDEO_MODE_320x240_YUV422 MODE_320x240_YUV422 |
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#define DC1394_VIDEO_MODE_640x480_YUV411 MODE_640x480_YUV411 |
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#define DC1394_VIDEO_MODE_640x480_YUV422 MODE_640x480_YUV422 |
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#define DC1394_FRAMERATE_1_875 FRAMERATE_1_875 |
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#define DC1394_FRAMERATE_3_75 FRAMERATE_3_75 |
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#define DC1394_FRAMERATE_7_5 FRAMERATE_7_5 |
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#define DC1394_FRAMERATE_15 FRAMERATE_15 |
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#define DC1394_FRAMERATE_30 FRAMERATE_30 |
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#define DC1394_FRAMERATE_60 FRAMERATE_60 |
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#define DC1394_FRAMERATE_120 FRAMERATE_120 |
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#define DC1394_FRAMERATE_240 FRAMERATE_240 |
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#endif |
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#undef free |
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typedef struct dc1394_data { |
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AVClass *class; |
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#if HAVE_LIBDC1394_1 |
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raw1394handle_t handle; |
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dc1394_cameracapture camera; |
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int channel; |
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#elif HAVE_LIBDC1394_2 |
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dc1394_t *d; |
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dc1394camera_t *camera; |
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dc1394video_frame_t *frame; |
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#endif |
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int current_frame; |
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int frame_rate; /**< frames per 1000 seconds (fps * 1000) */ |
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char *video_size; /**< String describing video size, set by a private option. */ |
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@@ -68,16 +49,21 @@ typedef struct dc1394_data { |
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AVPacket packet; |
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} dc1394_data; |
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struct dc1394_frame_format { |
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int width; |
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int height; |
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enum PixelFormat pix_fmt; |
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int frame_size_id; |
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} dc1394_frame_formats[] = { |
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{ 320, 240, PIX_FMT_UYVY422, DC1394_VIDEO_MODE_320x240_YUV422 }, |
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{ 640, 480, PIX_FMT_UYYVYY411, DC1394_VIDEO_MODE_640x480_YUV411 }, |
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{ 640, 480, PIX_FMT_UYVY422, DC1394_VIDEO_MODE_640x480_YUV422 }, |
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{ 0, 0, 0, 0 } /* gotta be the last one */ |
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/* The list of color codings that we support. |
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* We assume big endian for the dc1394 16bit modes: libdc1394 never sets the |
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* flag little_endian in dc1394video_frame_t. */ |
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struct dc1394_color_coding { |
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int pix_fmt; |
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int score; |
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uint32_t coding; |
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} dc1394_color_codings[] = { |
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{ PIX_FMT_GRAY16BE, 1000, DC1394_COLOR_CODING_MONO16 }, |
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{ PIX_FMT_RGB48BE, 1100, DC1394_COLOR_CODING_RGB16 }, |
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{ PIX_FMT_GRAY8, 1200, DC1394_COLOR_CODING_MONO8 }, |
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{ PIX_FMT_RGB24, 1300, DC1394_COLOR_CODING_RGB8 }, |
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{ PIX_FMT_UYYVYY411, 1400, DC1394_COLOR_CODING_YUV411 }, |
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{ PIX_FMT_UYVY422, 1500, DC1394_COLOR_CODING_YUV422 }, |
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{ PIX_FMT_NONE, 0, 0 } /* gotta be the last one */ |
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}; |
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struct dc1394_frame_rate { |
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@@ -98,9 +84,6 @@ struct dc1394_frame_rate { |
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#define OFFSET(x) offsetof(dc1394_data, x) |
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#define DEC AV_OPT_FLAG_DECODING_PARAM |
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static const AVOption options[] = { |
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#if HAVE_LIBDC1394_1 |
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{ "channel", "", offsetof(dc1394_data, channel), FF_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM }, |
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#endif |
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{ "video_size", "A string describing frame size, such as 640x480 or hd720.", OFFSET(video_size), FF_OPT_TYPE_STRING, {.str = "qvga"}, 0, 0, DEC }, |
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{ "pixel_format", "", OFFSET(pixel_format), FF_OPT_TYPE_STRING, {.str = "uyvy422"}, 0, 0, DEC }, |
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{ "framerate", "", OFFSET(framerate), FF_OPT_TYPE_STRING, {.str = "ntsc"}, 0, 0, DEC }, |
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@@ -114,220 +97,183 @@ static const AVClass libdc1394_class = { |
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.version = LIBAVUTIL_VERSION_INT, |
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}; |
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static inline int dc1394_read_common(AVFormatContext *c, AVFormatParameters *ap, |
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struct dc1394_frame_format **select_fmt, struct dc1394_frame_rate **select_fps) |
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static int dc1394_read_header(AVFormatContext *c, AVFormatParameters * ap) |
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{ |
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dc1394_data* dc1394 = c->priv_data; |
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AVStream* vst; |
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struct dc1394_frame_format *fmt; |
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struct dc1394_frame_rate *fps; |
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enum PixelFormat pix_fmt; |
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int width, height; |
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AVRational framerate; |
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int ret = 0; |
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if ((pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == PIX_FMT_NONE) { |
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av_log(c, AV_LOG_ERROR, "No such pixel format: %s.\n", dc1394->pixel_format); |
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ret = AVERROR(EINVAL); |
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AVStream *vst; |
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const struct dc1394_color_coding *cc; |
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const struct dc1394_frame_rate *fr; |
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dc1394camera_list_t *list; |
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dc1394video_modes_t video_modes; |
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dc1394video_mode_t video_mode; |
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dc1394framerates_t frame_rates; |
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dc1394framerate_t frame_rate; |
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uint32_t dc1394_width, dc1394_height, dc1394_color_coding; |
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int rate, best_rate; |
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int score, max_score; |
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int final_width, final_height, final_pix_fmt, final_frame_rate; |
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int res, i, j; |
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int ret=-1; |
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/* Now let us prep the hardware. */ |
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dc1394->d = dc1394_new(); |
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dc1394_camera_enumerate (dc1394->d, &list); |
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if ( !list || list->num == 0) { |
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av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera\n\n"); |
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goto out; |
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} |
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if ((ret = av_parse_video_size(&width, &height, dc1394->video_size)) < 0) { |
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av_log(c, AV_LOG_ERROR, "Couldn't parse video size.\n"); |
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goto out; |
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/* FIXME: To select a specific camera I need to search in list its guid */ |
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dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid); |
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if (list->num > 1) { |
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av_log(c, AV_LOG_INFO, "Working with the first camera found\n"); |
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} |
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if ((ret = av_parse_video_rate(&framerate, dc1394->framerate)) < 0) { |
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av_log(c, AV_LOG_ERROR, "Couldn't parse framerate.\n"); |
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goto out; |
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/* Freeing list of cameras */ |
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dc1394_camera_free_list (list); |
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/* Get the list of video modes supported by the camera. */ |
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res = dc1394_video_get_supported_modes (dc1394->camera, &video_modes); |
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if (res != DC1394_SUCCESS) { |
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av_log(c, AV_LOG_ERROR, "Could not get video formats.\n"); |
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goto out_camera; |
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} |
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#if FF_API_FORMAT_PARAMETERS |
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if (ap->width > 0) |
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width = ap->width; |
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if (ap->height > 0) |
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height = ap->height; |
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if (ap->pix_fmt) |
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pix_fmt = ap->pix_fmt; |
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if (ap->time_base.num) |
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framerate = (AVRational){ap->time_base.den, ap->time_base.num}; |
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#endif |
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dc1394->frame_rate = av_rescale(1000, framerate.num, framerate.den); |
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for (fmt = dc1394_frame_formats; fmt->width; fmt++) |
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if (fmt->pix_fmt == pix_fmt && fmt->width == width && fmt->height == height) |
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break; |
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for (fps = dc1394_frame_rates; fps->frame_rate; fps++) |
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if (fps->frame_rate == dc1394->frame_rate) |
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break; |
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if (!fps->frame_rate || !fmt->width) { |
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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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width, height, dc1394->frame_rate); |
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ret = AVERROR(EINVAL); |
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goto out; |
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if (dc1394->pixel_format) { |
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if ((ap->pix_fmt = av_get_pix_fmt(dc1394->pixel_format)) == PIX_FMT_NONE) { |
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av_log(c, AV_LOG_ERROR, "No such pixel format: %s.\n", dc1394->pixel_format); |
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ret = AVERROR(EINVAL); |
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goto out; |
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} |
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} |
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if (dc1394->video_size) { |
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if ((ret = av_parse_video_size(&ap->width, &ap->height, dc1394->video_size)) < 0) { |
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av_log(c, AV_LOG_ERROR, "Couldn't parse video size.\n"); |
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goto out; |
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} |
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} |
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/* Choose the best mode. */ |
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rate = (ap->time_base.num ? av_rescale(1000, ap->time_base.den, ap->time_base.num) : -1); |
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max_score = -1; |
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for (i = 0; i < video_modes.num; i++) { |
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if (video_modes.modes[i] == DC1394_VIDEO_MODE_EXIF |
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|| (video_modes.modes[i] >= DC1394_VIDEO_MODE_FORMAT7_MIN |
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&& video_modes.modes[i] <= DC1394_VIDEO_MODE_FORMAT7_MAX)) { |
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/* These modes are currently not supported as they would require |
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* much more work. For the remaining modes, the functions |
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* dc1394_get_image_size_from_video_mode and |
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* dc1394_get_color_coding_from_video_mode do not need to query the |
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* camera, and thus cannot fail. */ |
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continue; |
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} |
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dc1394_get_color_coding_from_video_mode (NULL, video_modes.modes[i], |
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&dc1394_color_coding); |
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for (cc = dc1394_color_codings; cc->pix_fmt != PIX_FMT_NONE; cc++) |
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if (cc->coding == dc1394_color_coding) |
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break; |
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if (cc->pix_fmt == PIX_FMT_NONE) { |
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/* We currently cannot handle this color coding. */ |
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continue; |
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} |
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/* Here we know that the mode is supported. Get its frame size and the list |
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* of frame rates supported by the camera for this mode. This list is sorted |
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* in ascending order according to libdc1394 example programs. */ |
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dc1394_get_image_size_from_video_mode (NULL, video_modes.modes[i], |
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&dc1394_width, &dc1394_height); |
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res = dc1394_video_get_supported_framerates (dc1394->camera, video_modes.modes[i], |
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&frame_rates); |
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if (res != DC1394_SUCCESS || frame_rates.num == 0) { |
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av_log(c, AV_LOG_ERROR, "Cannot get frame rates for video mode.\n"); |
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goto out_camera; |
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} |
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/* Choose the best frame rate. */ |
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best_rate = -1; |
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for (j = 0; j < frame_rates.num; j++) { |
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for (fr = dc1394_frame_rates; fr->frame_rate; fr++) { |
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if (fr->frame_rate_id == frame_rates.framerates[j]) { |
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break; |
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} |
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} |
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if (!fr->frame_rate) { |
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/* This frame rate is not supported. */ |
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continue; |
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} |
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best_rate = fr->frame_rate; |
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frame_rate = fr->frame_rate_id; |
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if (ap->time_base.num && rate == fr->frame_rate) { |
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/* This is the requested frame rate. */ |
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break; |
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} |
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} |
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if (best_rate == -1) { |
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/* No supported rate found. */ |
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continue; |
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} |
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/* Here we know that both the mode and the rate are supported. Compute score. */ |
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if (ap->width && ap->height |
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&& (dc1394_width == ap->width && dc1394_height == ap->height)) { |
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score = 110000; |
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} else { |
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score = dc1394_width * 10; // 1600 - 16000 |
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} |
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if (ap->pix_fmt == cc->pix_fmt) { |
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score += 90000; |
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} else { |
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score += cc->score; // 1000 - 1500 |
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} |
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if (ap->time_base.num && rate == best_rate) { |
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score += 70000; |
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} else { |
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score += best_rate / 1000; // 1 - 240 |
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} |
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if (score > max_score) { |
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video_mode = video_modes.modes[i]; |
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final_width = dc1394_width; |
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final_height = dc1394_height; |
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final_pix_fmt = cc->pix_fmt; |
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final_frame_rate = best_rate; |
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max_score = score; |
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} |
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} |
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if (max_score == -1) { |
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av_log(c, AV_LOG_ERROR, "No suitable video mode / frame rate available.\n"); |
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goto out_camera; |
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} |
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if (ap->width && ap->height && !(ap->width == final_width && ap->height == final_height)) { |
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av_log(c, AV_LOG_WARNING, "Requested frame size is not available, using fallback.\n"); |
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} |
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if (ap->pix_fmt != PIX_FMT_NONE && ap->pix_fmt != final_pix_fmt) { |
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av_log(c, AV_LOG_WARNING, "Requested pixel format is not supported, using fallback.\n"); |
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} |
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if (ap->time_base.num && rate != final_frame_rate) { |
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av_log(c, AV_LOG_WARNING, "Requested frame rate is not available, using fallback.\n"); |
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} |
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/* create a video stream */ |
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vst = av_new_stream(c, 0); |
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if (!vst) { |
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ret = AVERROR(ENOMEM); |
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goto out; |
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} |
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if (!vst) |
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goto out_camera; |
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av_set_pts_info(vst, 64, 1, 1000); |
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vst->codec->codec_type = AVMEDIA_TYPE_VIDEO; |
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vst->codec->codec_id = CODEC_ID_RAWVIDEO; |
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vst->codec->time_base.den = framerate.num; |
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vst->codec->time_base.num = framerate.den; |
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vst->codec->width = fmt->width; |
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vst->codec->height = fmt->height; |
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vst->codec->pix_fmt = fmt->pix_fmt; |
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vst->codec->time_base.den = final_frame_rate; |
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vst->codec->time_base.num = 1000; |
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vst->codec->width = final_width; |
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vst->codec->height = final_height; |
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vst->codec->pix_fmt = final_pix_fmt; |
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/* packet init */ |
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av_init_packet(&dc1394->packet); |
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dc1394->packet.size = avpicture_get_size(fmt->pix_fmt, fmt->width, fmt->height); |
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dc1394->packet.size = avpicture_get_size(final_pix_fmt, final_width, final_height); |
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dc1394->packet.stream_index = vst->index; |
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dc1394->packet.flags |= AV_PKT_FLAG_KEY; |
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dc1394->current_frame = 0; |
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dc1394->frame_rate = final_frame_rate; |
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vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, fps->frame_rate, 1000); |
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*select_fps = fps; |
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*select_fmt = fmt; |
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out: |
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av_freep(&dc1394->video_size); |
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av_freep(&dc1394->pixel_format); |
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av_freep(&dc1394->framerate); |
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return ret; |
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} |
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#if HAVE_LIBDC1394_1 |
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static int dc1394_v1_read_header(AVFormatContext *c, AVFormatParameters * ap) |
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{ |
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dc1394_data* dc1394 = c->priv_data; |
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AVStream* vst; |
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nodeid_t* camera_nodes; |
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int res; |
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struct dc1394_frame_format *fmt = NULL; |
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struct dc1394_frame_rate *fps = NULL; |
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if (dc1394_read_common(c,ap,&fmt,&fps) != 0) |
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return -1; |
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#if FF_API_FORMAT_PARAMETERS |
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if (ap->channel) |
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dc1394->channel = ap->channel; |
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#endif |
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/* Now let us prep the hardware. */ |
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dc1394->handle = dc1394_create_handle(0); /* FIXME: gotta have ap->port */ |
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if (!dc1394->handle) { |
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av_log(c, AV_LOG_ERROR, "Can't acquire dc1394 handle on port %d\n", 0 /* ap->port */); |
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goto out; |
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} |
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camera_nodes = dc1394_get_camera_nodes(dc1394->handle, &res, 1); |
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if (!camera_nodes || camera_nodes[dc1394->channel] == DC1394_NO_CAMERA) { |
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av_log(c, AV_LOG_ERROR, "There's no IIDC camera on the channel %d\n", dc1394->channel); |
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goto out_handle; |
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} |
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res = dc1394_dma_setup_capture(dc1394->handle, camera_nodes[dc1394->channel], |
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0, |
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FORMAT_VGA_NONCOMPRESSED, |
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fmt->frame_size_id, |
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SPEED_400, |
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fps->frame_rate_id, 8, 1, |
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c->filename, |
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&dc1394->camera); |
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dc1394_free_camera_nodes(camera_nodes); |
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if (res != DC1394_SUCCESS) { |
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av_log(c, AV_LOG_ERROR, "Can't prepare camera for the DMA capture\n"); |
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goto out_handle; |
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} |
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res = dc1394_start_iso_transmission(dc1394->handle, dc1394->camera.node); |
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if (res != DC1394_SUCCESS) { |
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av_log(c, AV_LOG_ERROR, "Can't start isochronous transmission\n"); |
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goto out_handle_dma; |
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} |
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return 0; |
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out_handle_dma: |
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dc1394_dma_unlisten(dc1394->handle, &dc1394->camera); |
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dc1394_dma_release_camera(dc1394->handle, &dc1394->camera); |
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out_handle: |
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dc1394_destroy_handle(dc1394->handle); |
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out: |
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return -1; |
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} |
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static int dc1394_v1_read_packet(AVFormatContext *c, AVPacket *pkt) |
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{ |
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struct dc1394_data *dc1394 = c->priv_data; |
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int res; |
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/* discard stale frame */ |
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if (dc1394->current_frame++) { |
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if (dc1394_dma_done_with_buffer(&dc1394->camera) != DC1394_SUCCESS) |
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av_log(c, AV_LOG_ERROR, "failed to release %d frame\n", dc1394->current_frame); |
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} |
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res = dc1394_dma_single_capture(&dc1394->camera); |
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if (res == DC1394_SUCCESS) { |
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dc1394->packet.data = (uint8_t *)(dc1394->camera.capture_buffer); |
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dc1394->packet.pts = (dc1394->current_frame * 1000000) / dc1394->frame_rate; |
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res = dc1394->packet.size; |
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} else { |
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av_log(c, AV_LOG_ERROR, "DMA capture failed\n"); |
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dc1394->packet.data = NULL; |
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res = -1; |
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} |
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*pkt = dc1394->packet; |
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return res; |
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} |
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static int dc1394_v1_close(AVFormatContext * context) |
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{ |
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struct dc1394_data *dc1394 = context->priv_data; |
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dc1394_stop_iso_transmission(dc1394->handle, dc1394->camera.node); |
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dc1394_dma_unlisten(dc1394->handle, &dc1394->camera); |
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dc1394_dma_release_camera(dc1394->handle, &dc1394->camera); |
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dc1394_destroy_handle(dc1394->handle); |
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return 0; |
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} |
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#elif HAVE_LIBDC1394_2 |
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static int dc1394_v2_read_header(AVFormatContext *c, AVFormatParameters * ap) |
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{ |
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dc1394_data* dc1394 = c->priv_data; |
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dc1394camera_list_t *list; |
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int res, i; |
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struct dc1394_frame_format *fmt = NULL; |
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struct dc1394_frame_rate *fps = NULL; |
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if (dc1394_read_common(c,ap,&fmt,&fps) != 0) |
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return -1; |
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/* Now let us prep the hardware. */ |
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dc1394->d = dc1394_new(); |
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dc1394_camera_enumerate (dc1394->d, &list); |
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if ( !list || list->num == 0) { |
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av_log(c, AV_LOG_ERROR, "Unable to look for an IIDC camera\n\n"); |
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goto out; |
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} |
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/* FIXME: To select a specific camera I need to search in list its guid */ |
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dc1394->camera = dc1394_camera_new (dc1394->d, list->ids[0].guid); |
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if (list->num > 1) { |
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av_log(c, AV_LOG_INFO, "Working with the first camera found\n"); |
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} |
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/* Freeing list of cameras */ |
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dc1394_camera_free_list (list); |
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vst->codec->bit_rate = av_rescale(dc1394->packet.size * 8, final_frame_rate, 1000); |
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/* Select MAX Speed possible from the cam */ |
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if (dc1394->camera->bmode_capable>0) { |
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@@ -345,13 +291,13 @@ static int dc1394_v2_read_header(AVFormatContext *c, AVFormatParameters * ap) |
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goto out_camera; |
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} |
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if (dc1394_video_set_mode(dc1394->camera, fmt->frame_size_id) != DC1394_SUCCESS) { |
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if (dc1394_video_set_mode(dc1394->camera, video_mode) != DC1394_SUCCESS) { |
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av_log(c, AV_LOG_ERROR, "Couldn't set video format\n"); |
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goto out_camera; |
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} |
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if (dc1394_video_set_framerate(dc1394->camera,fps->frame_rate_id) != DC1394_SUCCESS) { |
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av_log(c, AV_LOG_ERROR, "Couldn't set framerate %d \n",fps->frame_rate); |
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if (dc1394_video_set_framerate(dc1394->camera, frame_rate) != DC1394_SUCCESS) { |
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av_log(c, AV_LOG_ERROR, "Could not set framerate %d.\n", final_frame_rate); |
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goto out_camera; |
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} |
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if (dc1394_capture_setup(dc1394->camera, 10, DC1394_CAPTURE_FLAGS_DEFAULT)!=DC1394_SUCCESS) { |
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@@ -370,11 +316,13 @@ out_camera: |
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dc1394_video_set_transmission(dc1394->camera, DC1394_OFF); |
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dc1394_camera_free (dc1394->camera); |
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out: |
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av_freep(&dc1394->video_size); |
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av_freep(&dc1394->pixel_format); |
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dc1394_free(dc1394->d); |
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return -1; |
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return ret; |
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} |
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static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt) |
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static int dc1394_read_packet(AVFormatContext *c, AVPacket *pkt) |
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{ |
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struct dc1394_data *dc1394 = c->priv_data; |
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int res; |
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@@ -400,7 +348,7 @@ static int dc1394_v2_read_packet(AVFormatContext *c, AVPacket *pkt) |
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return res; |
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} |
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static int dc1394_v2_close(AVFormatContext * context) |
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static int dc1394_close(AVFormatContext * context) |
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{ |
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struct dc1394_data *dc1394 = context->priv_data; |
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@@ -414,25 +362,11 @@ static int dc1394_v2_close(AVFormatContext * context) |
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AVInputFormat ff_libdc1394_demuxer = { |
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.name = "libdc1394", |
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.long_name = NULL_IF_CONFIG_SMALL("dc1394 v.2 A/V grab"), |
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.priv_data_size = sizeof(struct dc1394_data), |
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.read_header = dc1394_v2_read_header, |
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.read_packet = dc1394_v2_read_packet, |
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.read_close = dc1394_v2_close, |
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.flags = AVFMT_NOFILE, |
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.priv_class = &libdc1394_class, |
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}; |
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#endif |
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#if HAVE_LIBDC1394_1 |
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AVInputFormat ff_libdc1394_demuxer = { |
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.name = "libdc1394", |
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.long_name = NULL_IF_CONFIG_SMALL("dc1394 v.1 A/V grab"), |
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.long_name = NULL_IF_CONFIG_SMALL("dc1394 A/V grab"), |
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.priv_data_size = sizeof(struct dc1394_data), |
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.read_header = dc1394_v1_read_header, |
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.read_packet = dc1394_v1_read_packet, |
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.read_close = dc1394_v1_close, |
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.read_header = dc1394_read_header, |
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.read_packet = dc1394_read_packet, |
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.read_close = dc1394_close, |
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.flags = AVFMT_NOFILE, |
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.priv_class = &libdc1394_class, |
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}; |
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#endif |