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-rw-r--r--stream.c223
1 files changed, 0 insertions, 223 deletions
diff --git a/stream.c b/stream.c
deleted file mode 100644
index 57745aa..0000000
--- a/stream.c
+++ /dev/null
@@ -1,223 +0,0 @@
-/*
- * UVC stream handling
- *
- * Copyright (C) 2010 Ideas on board SPRL <laurent.pinchart@ideasonboard.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "events.h"
-#include "stream.h"
-#include "uvc.h"
-#include "v4l2.h"
-#include "video-buffers.h"
-#include "video-source.h"
-
-/*
- * struct uvc_stream - Representation of a UVC stream
- * @src: video source
- * @uvc: UVC V4L2 output device
- * @events: struct events containing event information
- */
-struct uvc_stream
-{
- struct video_source *src;
- struct uvc_device *uvc;
-
- struct events *events;
-};
-
-/* ---------------------------------------------------------------------------
- * Video streaming
- */
-
-static void uvc_stream_source_process(void *d, struct video_source *src,
- struct video_buffer *buffer)
-{
- struct uvc_stream *stream = d;
- struct v4l2_device *sink = uvc_v4l2_device(stream->uvc);
-
- v4l2_queue_buffer(sink, buffer);
-}
-
-static void uvc_stream_uvc_process(void *d)
-{
- struct uvc_stream *stream = d;
- struct v4l2_device *sink = uvc_v4l2_device(stream->uvc);
- struct video_buffer buf;
- int ret;
-
- ret = v4l2_dequeue_buffer(sink, &buf);
- if (ret < 0)
- return;
-
- video_source_queue_buffer(stream->src, &buf);
-}
-
-static int uvc_stream_start(struct uvc_stream *stream)
-{
- struct v4l2_device *sink = uvc_v4l2_device(stream->uvc);
- struct video_buffer_set *buffers = NULL;
- int ret;
-
- printf("Starting video stream.\n");
-
- /* Allocate and export the buffers on the source. */
- ret = video_source_alloc_buffers(stream->src, 4);
- if (ret < 0) {
- printf("Failed to allocate source buffers: %s (%d)\n",
- strerror(-ret), -ret);
- return ret;
- }
-
- ret = video_source_export_buffers(stream->src, &buffers);
- if (ret < 0) {
- printf("Failed to export buffers on source: %s (%d)\n",
- strerror(-ret), -ret);
- goto error_free_source;
- }
-
- /* Allocate and import the buffers on the sink. */
- ret = v4l2_alloc_buffers(sink, V4L2_MEMORY_DMABUF, buffers->nbufs);
- if (ret < 0) {
- printf("Failed to allocate sink buffers: %s (%d)\n",
- strerror(-ret), -ret);
- goto error_free_source;
- }
-
- ret = v4l2_import_buffers(sink, buffers);
- if (ret < 0) {
- printf("Failed to import buffers on sink: %s (%d)\n",
- strerror(-ret), -ret);
- goto error_free_sink;
- }
-
- /* Start the source and sink. */
- video_source_stream_on(stream->src);
- v4l2_stream_on(sink);
-
- events_watch_fd(stream->events, sink->fd, EVENT_WRITE,
- uvc_stream_uvc_process, stream);
-
- return 0;
-
-error_free_sink:
- v4l2_free_buffers(sink);
-error_free_source:
- video_source_free_buffers(stream->src);
- if (buffers)
- video_buffer_set_delete(buffers);
- return ret;
-}
-
-static int uvc_stream_stop(struct uvc_stream *stream)
-{
- struct v4l2_device *sink = uvc_v4l2_device(stream->uvc);
-
- printf("Stopping video stream.\n");
-
- events_unwatch_fd(stream->events, sink->fd, EVENT_WRITE);
-
- v4l2_stream_off(sink);
- video_source_stream_off(stream->src);
-
- v4l2_free_buffers(sink);
- video_source_free_buffers(stream->src);
-
- return 0;
-}
-
-void uvc_stream_enable(struct uvc_stream *stream, int enable)
-{
- if (enable)
- uvc_stream_start(stream);
- else
- uvc_stream_stop(stream);
-}
-
-int uvc_stream_set_format(struct uvc_stream *stream,
- const struct v4l2_pix_format *format)
-{
- struct v4l2_pix_format fmt = *format;
- int ret;
-
- printf("Setting format to 0x%08x %ux%u\n",
- format->pixelformat, format->width, format->height);
-
- ret = uvc_set_format(stream->uvc, &fmt);
- if (ret < 0)
- return ret;
-
- return video_source_set_format(stream->src, &fmt);
-}
-
-/* ---------------------------------------------------------------------------
- * Stream handling
- */
-
-struct uvc_stream *uvc_stream_new(const char *uvc_device)
-{
- struct uvc_stream *stream;
-
- stream = malloc(sizeof(*stream));
- if (stream == NULL)
- return NULL;
-
- memset(stream, 0, sizeof(*stream));
-
- stream->uvc = uvc_open(uvc_device, stream);
- if (stream->uvc == NULL)
- goto error;
-
- return stream;
-
-error:
- free(stream);
- return NULL;
-}
-
-void uvc_stream_delete(struct uvc_stream *stream)
-{
- if (stream == NULL)
- return;
-
- uvc_close(stream->uvc);
-
- free(stream);
-}
-
-void uvc_stream_init_uvc(struct uvc_stream *stream,
- struct uvc_function_config *fc)
-{
- uvc_set_config(stream->uvc, fc);
- uvc_events_init(stream->uvc, stream->events);
-}
-
-void uvc_stream_set_event_handler(struct uvc_stream *stream,
- struct events *events)
-{
- stream->events = events;
-}
-
-void uvc_stream_set_video_source(struct uvc_stream *stream,
- struct video_source *src)
-{
- stream->src = src;
-
- video_source_set_buffer_handler(src, uvc_stream_source_process, stream);
-}