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gst-plugins-good
Commit 82a806e6 authored by Nicolas Dufresne's avatar Nicolas Dufresne Committed by Nicolas Dufresne
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v4l2: Replace miss-use of crop meta in favour of proper offset 

This moves away from copying information and store everything inside
the GstVideoInfo structure. The alignement exposed by v4l2 api
is now handled using proper offset.
parent 3e4ed479
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Inline Side-by-side
Showing with 147 additions and 166 deletions
sys/v4l2/gstv4l2bufferpool.c
View file @ 82a806e6
......@@ -353,11 +353,9 @@ gst_v4l2_buffer_pool_alloc_buffer (GstBufferPool * bpool, GstBuffer ** buffer,
GstBuffer *newbuf = NULL;
GstV4l2Object *obj;
GstVideoInfo *info;
GstVideoAlignment *align;
obj = pool->obj;
info = &obj->info;
align = &obj->align;
switch (obj->mode) {
case GST_V4L2_IO_RW:
......@@ -394,71 +392,11 @@ gst_v4l2_buffer_pool_alloc_buffer (GstBufferPool * bpool, GstBuffer ** buffer,
}
/* add metadata to raw video buffers */
if (pool->add_videometa && info->finfo) {
const GstVideoFormatInfo *finfo = info->finfo;
gsize offset[GST_VIDEO_MAX_PLANES];
gint width, height, n_gst_planes, offs, i, stride[GST_VIDEO_MAX_PLANES];
width = GST_VIDEO_INFO_WIDTH (info);
height = GST_VIDEO_INFO_HEIGHT (info);
/* n_gst_planes is the number of planes
* (RGB: 1, YUY2: 1, NV12: 2, I420: 3)
* It's greater or equal than the number of v4l2 planes. */
n_gst_planes = GST_VIDEO_INFO_N_PLANES (info);
/* the basic are common between MPLANE mode and non MPLANE mode
* except a special case inside the loop at the end
*/
offs = 0;
for (i = 0; i < n_gst_planes; i++) {
GST_DEBUG_OBJECT (pool, "adding video meta, bytesperline %d",
obj->bytesperline[i]);
offset[i] = offs;
if (GST_VIDEO_FORMAT_INFO_IS_TILED (finfo)) {
guint x_tiles, y_tiles, ws, hs, tile_height;
ws = GST_VIDEO_FORMAT_INFO_TILE_WS (finfo);
hs = GST_VIDEO_FORMAT_INFO_TILE_HS (finfo);
tile_height = 1 << hs;
x_tiles = obj->bytesperline[i] >> ws;
y_tiles = GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT (finfo, i,
GST_ROUND_UP_N (height, tile_height) >> hs);
stride[i] = GST_VIDEO_TILE_MAKE_STRIDE (x_tiles, y_tiles);
} else {
stride[i] = obj->bytesperline[i];
}
/* when using multiplanar mode and if there is more then one v4l
* plane for each gst plane
*/
if (V4L2_TYPE_IS_MULTIPLANAR (obj->type) && group->n_mem > 1)
/* non_contiguous case here so we have to make sure that gst goes to the
* next plane (using default gstvideometa.c::default_map).
* And the next plane is after length bytes of the previous one from
* the gst buffer point of view. */
offs += gst_memory_get_sizes (group->mem[i], NULL, NULL);
else
offs += obj->bytesperline[i] *
GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT (finfo, i, height);
}
if (pool->add_videometa)
gst_buffer_add_video_meta_full (newbuf, GST_VIDEO_FRAME_FLAG_NONE,
GST_VIDEO_INFO_FORMAT (info), width, height, n_gst_planes,
offset, stride);
}
if (pool->add_cropmeta) {
GstVideoCropMeta *crop;
crop = gst_buffer_add_video_crop_meta (newbuf);
crop->x = align->padding_left;
crop->y = align->padding_top;
crop->width = info->width;
crop->width = info->height;
}
GST_VIDEO_INFO_FORMAT (info), GST_VIDEO_INFO_WIDTH (info),
GST_VIDEO_INFO_HEIGHT (info), GST_VIDEO_INFO_N_PLANES (info),
info->offset, info->stride);
*buffer = newbuf;
......@@ -489,10 +427,6 @@ gst_v4l2_buffer_pool_set_config (GstBufferPool * bpool, GstStructure * config)
gst_buffer_pool_config_has_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
pool->add_cropmeta =
gst_buffer_pool_config_has_option (config,
GST_V4L2_BUFFER_POOL_OPTION_CROP_META);
/* parse the config and keep around */
if (!gst_buffer_pool_config_get_params (config, &caps, &size, &min_buffers,
&max_buffers))
......@@ -564,13 +498,6 @@ gst_v4l2_buffer_pool_set_config (GstBufferPool * bpool, GstStructure * config)
GST_BUFFER_POOL_OPTION_VIDEO_META);
}
if (!pool->add_cropmeta && obj->need_crop_meta) {
GST_INFO_OBJECT (pool, "adding needed crop meta");
updated = TRUE;
gst_buffer_pool_config_add_option (config,
GST_V4L2_BUFFER_POOL_OPTION_CROP_META);
}
if (updated)
gst_buffer_pool_config_set_params (config, caps, size, min_buffers,
max_buffers);
......@@ -1474,7 +1401,7 @@ gst_v4l2_buffer_pool_new (GstV4l2Object * obj, GstCaps * caps)
gst_object_ref (obj->element);
config = gst_buffer_pool_get_config (GST_BUFFER_POOL_CAST (pool));
gst_buffer_pool_config_set_params (config, caps, obj->sizeimage, 0, 0);
gst_buffer_pool_config_set_params (config, caps, obj->info.size, 0, 0);
/* This will simply set a default config, but will not configure the pool
* because min and max are not valid */
gst_buffer_pool_set_config (GST_BUFFER_POOL_CAST (pool), config);
......@@ -1498,7 +1425,7 @@ gst_v4l2_do_read (GstV4l2BufferPool * pool, GstBuffer * buf)
GstMapInfo map;
gint toread;
toread = obj->sizeimage;
toread = obj->info.size;
GST_LOG_OBJECT (pool, "reading %d bytes into buffer %p", toread, buf);
......
sys/v4l2/gstv4l2bufferpool.h
View file @ 82a806e6
......@@ -44,8 +44,6 @@ G_BEGIN_DECLS
#define GST_V4L2_BUFFER_POOL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_V4L2_BUFFER_POOL, GstV4l2BufferPool))
#define GST_V4L2_BUFFER_POOL_CAST(obj) ((GstV4l2BufferPool*)(obj))
#define GST_V4L2_BUFFER_POOL_OPTION_CROP_META "GstV4l2BufferPoolOptionCropMeta"
struct _GstV4l2BufferPool
{
GstBufferPool parent;
......@@ -59,8 +57,7 @@ struct _GstV4l2BufferPool
GstBufferPool *other_pool;
guint size;
gboolean add_videometa;
gboolean add_cropmeta;
gboolean add_videometa; /* set if video meta should be added */
guint num_buffers; /* number of buffers we use */
guint num_queued; /* number of buffers queued in the driver */
......
sys/v4l2/gstv4l2object.c
View file @ 82a806e6
This diff is collapsed.
sys/v4l2/gstv4l2object.h
View file @ 82a806e6
......@@ -102,7 +102,6 @@ struct _GstV4l2Object {
/* Features */
gboolean need_video_meta;
gboolean need_crop_meta;
gboolean has_alpha_component;
/* only used if the device supports MPLANE
......@@ -111,8 +110,7 @@ struct _GstV4l2Object {
*/
gint n_v4l2_planes;
guint32 bytesperline[GST_VIDEO_MAX_PLANES];
guint32 sizeimage;
/* We cache the frame duration if known */
GstClockTime duration;
/* if the MPLANE device support both contiguous and non contiguous
......
sys/v4l2/gstv4l2src.c
View file @ 82a806e6
......@@ -622,7 +622,7 @@ gst_v4l2src_create (GstPushSrc * src, GstBuffer ** buf)
GstClockTime delay;
ret = GST_BASE_SRC_CLASS (parent_class)->alloc (GST_BASE_SRC (src), 0,
obj->sizeimage, buf);
obj->info.size, buf);
if (G_UNLIKELY (ret != GST_FLOW_OK))
goto alloc_failed;
......
sys/v4l2/gstv4l2transform.c
View file @ 82a806e6
......@@ -463,7 +463,7 @@ gst_v4l2_transform_prepare_output_buffer (GstBaseTransform * trans,
if (!gst_buffer_pool_is_active (pool)) {
GstStructure *config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, self->incaps,
self->v4l2output->sizeimage, 2, 2);
self->v4l2output->info.size, 2, 2);
/* There is no reason to refuse this config */
if (!gst_buffer_pool_set_config (pool, config))
......
sys/v4l2/gstv4l2videodec.c
View file @ 82a806e6
......@@ -471,7 +471,7 @@ gst_v4l2_video_dec_handle_frame (GstVideoDecoder * decoder,
if (!gst_buffer_pool_is_active (pool)) {
GstStructure *config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, self->input_state->caps,
self->v4l2output->sizeimage, 2, 2);
self->v4l2output->info.size, 2, 2);
/* There is no reason to refuse this config */
if (!gst_buffer_pool_set_config (pool, config))
......
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