static GstFlowReturn
gst_vaapi_video_buffer_pool_acquire_buffer (GstBufferPool * pool,
GstBuffer ** out_buffer_ptr, GstBufferPoolAcquireParams * params)
{
GstVaapiVideoBufferPoolPrivate *const priv =
GST_VAAPI_VIDEO_BUFFER_POOL (pool)->priv;
GstVaapiVideoBufferPoolAcquireParams *const priv_params =
(GstVaapiVideoBufferPoolAcquireParams *) params;
GstFlowReturn ret;
GstBuffer *buffer;
GstMemory *mem;
GstVaapiVideoMeta *meta;
GstVaapiSurface *surface;
GstVaapiBufferProxy *dmabuf_proxy;
ret =
GST_BUFFER_POOL_CLASS
(gst_vaapi_video_buffer_pool_parent_class)->acquire_buffer (pool, &buffer,
params);
if (!priv->use_dmabuf_memory || !params || !priv_params->proxy
|| ret != GST_FLOW_OK) {
*out_buffer_ptr = buffer;
return ret;
}
/* The point of the following dance is to attach the right GstMemory to the
* current acquired buffer. Indeed this buffer can contain any of the
* GstFdmemory since this buffer have been popped out from the buffer pool's
* FIFO. So there is no garantee that this matches the current surface. The
* va decoder driver might not even use a FIFO. So there is no way to guess
* on the ordering. In short acquire_current_buffer on the va driver and on
* the buffer pool return none matching data. So we have to manually attach
* the right GstFdMemory to the acquired GstBuffer. The right GstMemory is
* the one associated with the current surface. */
g_assert (gst_buffer_n_memory (buffer) == 1);
/* Find the cached memory associated with the given surface. */
surface = GST_VAAPI_SURFACE_PROXY_SURFACE (priv_params->proxy);
dmabuf_proxy = gst_vaapi_surface_peek_buffer_proxy (surface);
if (dmabuf_proxy) {
mem = gst_vaapi_buffer_proxy_peek_mem (dmabuf_proxy);
if (mem == gst_buffer_peek_memory (buffer, 0))
mem = NULL;
else
mem = gst_memory_ref (mem);
} else {
/* The given surface has not been exported yet. */
meta = gst_buffer_get_vaapi_video_meta (buffer);
if (gst_vaapi_video_meta_get_surface_proxy (meta))
gst_vaapi_video_meta_set_surface_proxy (meta, priv_params->proxy);
mem =
gst_vaapi_dmabuf_memory_new (priv->allocator,
gst_buffer_get_vaapi_video_meta (buffer));
}
/* Attach the GstFdMemory to the output buffer. */
if (mem) {
GST_DEBUG_OBJECT (pool, "assigning memory %p to acquired buffer %p", mem,
buffer);
gst_buffer_replace_memory (buffer, 0, mem);
gst_buffer_unset_flags (buffer, GST_BUFFER_FLAG_TAG_MEMORY);
}
*out_buffer_ptr = buffer;
return GST_FLOW_OK;
}
/* Called by the idle function in the gl thread */
void
_do_convert (GstGLContext * context, GstGLColorConvert * convert)
{
guint in_width, in_height, out_width, out_height;
struct ConvertInfo *c_info = &convert->priv->convert_info;
GstMapInfo out_info[GST_VIDEO_MAX_PLANES], in_info[GST_VIDEO_MAX_PLANES];
gboolean res = TRUE;
gint i, j = 0;
out_width = GST_VIDEO_INFO_WIDTH (&convert->out_info);
out_height = GST_VIDEO_INFO_HEIGHT (&convert->out_info);
in_width = GST_VIDEO_INFO_WIDTH (&convert->in_info);
in_height = GST_VIDEO_INFO_HEIGHT (&convert->in_info);
convert->outbuf = NULL;
if (!_init_convert (convert)) {
convert->priv->result = FALSE;
return;
}
convert->outbuf = gst_buffer_new ();
if (!gst_gl_memory_setup_buffer (convert->context, &convert->out_info,
convert->outbuf)) {
convert->priv->result = FALSE;
return;
}
gst_buffer_add_video_meta_full (convert->outbuf, 0,
GST_VIDEO_INFO_FORMAT (&convert->out_info),
GST_VIDEO_INFO_WIDTH (&convert->out_info),
GST_VIDEO_INFO_HEIGHT (&convert->out_info),
GST_VIDEO_INFO_N_PLANES (&convert->out_info),
convert->out_info.offset, convert->out_info.stride);
for (i = 0; i < c_info->in_n_textures; i++) {
convert->priv->in_tex[i] =
(GstGLMemory *) gst_buffer_peek_memory (convert->inbuf, i);
if (!gst_is_gl_memory ((GstMemory *) convert->priv->in_tex[i])) {
GST_ERROR_OBJECT (convert, "input must be GstGLMemory");
res = FALSE;
goto out;
}
if (!gst_memory_map ((GstMemory *) convert->priv->in_tex[i], &in_info[i],
GST_MAP_READ | GST_MAP_GL)) {
GST_ERROR_OBJECT (convert, "failed to map input memory %p",
convert->priv->in_tex[i]);
res = FALSE;
goto out;
}
}
for (j = 0; j < c_info->out_n_textures; j++) {
GstGLMemory *out_tex =
(GstGLMemory *) gst_buffer_peek_memory (convert->outbuf, j);
gint mem_width, mem_height;
if (!gst_is_gl_memory ((GstMemory *) out_tex)) {
GST_ERROR_OBJECT (convert, "output must be GstGLMemory");
res = FALSE;
goto out;
}
mem_width = gst_gl_memory_get_texture_width (out_tex);
mem_height = gst_gl_memory_get_texture_height (out_tex);
if (out_tex->tex_type == GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE
|| out_tex->tex_type == GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE_ALPHA
|| out_width != mem_width || out_height != mem_height) {
/* Luminance formats are not color renderable */
/* renderering to a framebuffer only renders the intersection of all
* the attachments i.e. the smallest attachment size */
GstVideoInfo temp_info;
gst_video_info_set_format (&temp_info, GST_VIDEO_FORMAT_RGBA, out_width,
out_height);
if (!convert->priv->out_tex[j])
convert->priv->out_tex[j] =
(GstGLMemory *) gst_gl_memory_alloc (context, &temp_info, 0);
} else {
convert->priv->out_tex[j] = out_tex;
}
if (!gst_memory_map ((GstMemory *) convert->priv->out_tex[j], &out_info[j],
GST_MAP_WRITE | GST_MAP_GL)) {
GST_ERROR_OBJECT (convert, "failed to map output memory %p",
convert->priv->out_tex[i]);
res = FALSE;
goto out;
}
}
GST_LOG_OBJECT (convert, "converting to textures:%p,%p,%p,%p "
"dimensions:%ux%u, from textures:%p,%p,%p,%p dimensions:%ux%u",
convert->priv->out_tex[0], convert->priv->out_tex[1],
convert->priv->out_tex[2], convert->priv->out_tex[3], out_width,
out_height, convert->priv->in_tex[0], convert->priv->in_tex[1],
convert->priv->in_tex[2], convert->priv->in_tex[3], in_width, in_height);
if (!_do_convert_draw (context, convert))
res = FALSE;
out:
for (j--; j >= 0; j--) {
GstGLMemory *out_tex =
(GstGLMemory *) gst_buffer_peek_memory (convert->outbuf, j);
gint mem_width, mem_height;
gst_memory_unmap ((GstMemory *) convert->priv->out_tex[j], &out_info[j]);
mem_width = gst_gl_memory_get_texture_width (out_tex);
mem_height = gst_gl_memory_get_texture_height (out_tex);
if (out_tex->tex_type == GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE
|| out_tex->tex_type == GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE_ALPHA
|| out_width != mem_width || out_height != mem_height) {
GstMapInfo to_info, from_info;
if (!gst_memory_map ((GstMemory *) convert->priv->out_tex[j], &from_info,
GST_MAP_READ | GST_MAP_GL)) {
gst_gl_context_set_error (convert->context, "Failed to map "
"intermediate memory");
res = FALSE;
continue;
}
if (!gst_memory_map ((GstMemory *) out_tex, &to_info,
GST_MAP_WRITE | GST_MAP_GL)) {
gst_gl_context_set_error (convert->context, "Failed to map "
"intermediate memory");
res = FALSE;
continue;
}
gst_gl_memory_copy_into_texture (convert->priv->out_tex[j],
out_tex->tex_id, out_tex->tex_type, mem_width, mem_height,
GST_VIDEO_INFO_PLANE_STRIDE (&out_tex->info, out_tex->plane), FALSE);
gst_memory_unmap ((GstMemory *) convert->priv->out_tex[j], &from_info);
gst_memory_unmap ((GstMemory *) out_tex, &to_info);
} else {
convert->priv->out_tex[j] = NULL;
}
}
/* YV12 the same as I420 except planes 1+2 swapped */
if (GST_VIDEO_INFO_FORMAT (&convert->out_info) == GST_VIDEO_FORMAT_YV12) {
GstMemory *mem1 = gst_buffer_get_memory (convert->outbuf, 1);
GstMemory *mem2 = gst_buffer_get_memory (convert->outbuf, 2);
gst_buffer_replace_memory (convert->outbuf, 1, mem2);
gst_buffer_replace_memory (convert->outbuf, 2, mem1);
}
for (i--; i >= 0; i--) {
gst_memory_unmap ((GstMemory *) convert->priv->in_tex[i], &in_info[i]);
}
if (!res) {
gst_buffer_unref (convert->outbuf);
convert->outbuf = NULL;
}
convert->priv->result = res;
return;
}