msdkallocator_libva: Rewrite gst_msdk_frame_alloc

Rewrite gst_msdk_frame_alloc and name it as xxx_2 before applying it.
It uses negotiated bufferpool stored in GstMsdkContext to allocate buffers
in the callback MfxFrameAllocator:Alloc, then extract VASurface from buffer,
wrap it as mfxMemIDs and pass these IDs to MediaSDK/oneVPL.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3439>
This commit is contained in:
Mengkejiergeli Ba 2022-08-23 10:48:50 +08:00 committed by Haihao Xiang
parent 4124b8ffd4
commit 8459349963

View file

@ -257,6 +257,184 @@ gst_msdk_frame_alloc (mfxHDL pthis, mfxFrameAllocRequest * req,
return status;
}
mfxStatus
gst_msdk_frame_alloc_2 (mfxHDL pthis, mfxFrameAllocRequest * req,
mfxFrameAllocResponse * resp)
{
mfxStatus status = MFX_ERR_NONE;
gint i;
GstMsdkSurface *msdk_surface = NULL;
mfxMemId *mids = NULL;
GstMsdkContext *context = (GstMsdkContext *) pthis;
GstMsdkAllocResponse *msdk_resp = NULL;
mfxU32 fourcc = req->Info.FourCC;
mfxU16 surfaces_num = req->NumFrameSuggested;
GList *tmp_list = NULL;
GList *l;
GstMsdkSurface *tmp_surface = NULL;
VAStatus va_status;
/* MFX_MAKEFOURCC('V','P','8','S') is used for MFX_FOURCC_VP9_SEGMAP surface
* in MSDK and this surface is an internal surface. The external allocator
* shouldn't be used for this surface allocation
*
* See https://github.com/Intel-Media-SDK/MediaSDK/issues/762
*/
if (req->Type & MFX_MEMTYPE_INTERNAL_FRAME
&& fourcc == MFX_MAKEFOURCC ('V', 'P', '8', 'S'))
return MFX_ERR_UNSUPPORTED;
if (req->Type & MFX_MEMTYPE_EXTERNAL_FRAME) {
GstMsdkAllocResponse *cached =
gst_msdk_context_get_cached_alloc_responses_by_request (context, req);
if (cached) {
/* check if enough frames were allocated */
if (req->NumFrameSuggested > cached->response.NumFrameActual)
return MFX_ERR_MEMORY_ALLOC;
*resp = cached->response;
g_atomic_int_inc (&cached->refcount);
return MFX_ERR_NONE;
}
}
/* The VA API does not define any surface types and the application can use either
* MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET or
* MFX_MEMTYPE_VIDEO_MEMORY_PROCESSOR_TARGET to indicate data in video memory.
*/
if (!(req->Type & (MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET |
MFX_MEMTYPE_VIDEO_MEMORY_PROCESSOR_TARGET)))
return MFX_ERR_UNSUPPORTED;
mids = (mfxMemId *) g_slice_alloc0 (surfaces_num * sizeof (mfxMemId));
msdk_resp = g_slice_new0 (GstMsdkAllocResponse);
if (fourcc != MFX_FOURCC_P8) {
GstBufferPool *pool;
GstVideoFormat format;
GstStructure *config;
GstVideoInfo info;
GstCaps *caps;
GstVideoAlignment align;
format = gst_msdk_get_video_format_from_mfx_fourcc (fourcc);
gst_video_info_set_format (&info, format, req->Info.CropW, req->Info.CropH);
gst_video_alignment_reset (&align);
gst_msdk_set_video_alignment
(&info, req->Info.Width, req->Info.Height, &align);
gst_video_info_align (&info, &align);
caps = gst_video_info_to_caps (&info);
pool = gst_msdk_context_get_alloc_pool (context);
if (!pool) {
goto error_alloc;
}
config = gst_buffer_pool_get_config (GST_BUFFER_POOL_CAST (pool));
gst_buffer_pool_config_set_params (config, caps,
GST_VIDEO_INFO_SIZE (&info), surfaces_num, surfaces_num);
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_config_add_option (config,
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
gst_buffer_pool_config_set_va_alignment (config, &align);
if (!gst_buffer_pool_set_config (pool, config)) {
GST_ERROR ("Failed to set pool config");
gst_object_unref (pool);
goto error_alloc;
}
if (!gst_buffer_pool_set_active (pool, TRUE)) {
GST_ERROR ("Failed to activate pool");
gst_object_unref (pool);
goto error_alloc;
}
for (i = 0; i < surfaces_num; i++) {
GstBuffer *buf;
if (gst_buffer_pool_acquire_buffer (pool, &buf, NULL) != GST_FLOW_OK) {
GST_ERROR ("Failed to allocate buffer");
gst_buffer_pool_set_active (pool, FALSE);
gst_object_unref (pool);
goto error_alloc;
}
msdk_surface = gst_msdk_import_to_msdk_surface (buf, context, &info, 0);
if (!msdk_surface) {
GST_ERROR ("Failed to get GstMsdkSurface");
gst_buffer_pool_set_active (pool, FALSE);
gst_object_unref (pool);
goto error_alloc;
}
msdk_surface->buf = buf;
mids[i] = msdk_surface->surface->Data.MemId;
tmp_list = g_list_prepend (tmp_list, msdk_surface);
}
} else {
/* This path is to handle a special case when requesting MFX_FOURCC_P208, We keep
* this to avoid failure when building gst-msdk plugins using old version of MediaSDK.
* These buffers will be used inside the driver and released by
* gst_msdk_frame_free functions. Application doesn't need to handle these buffers.
* See https://github.com/Intel-Media-SDK/samples/issues/13 for more details.
*/
VAContextID context_id = req->AllocId;
gint width32 = 32 * ((req->Info.Width + 31) >> 5);
gint height32 = 32 * ((req->Info.Height + 31) >> 5);
guint64 codedbuf_size = (width32 * height32) * 400LL / (16 * 16);
for (i = 0; i < surfaces_num; i++) {
VABufferID coded_buf;
GstMsdkMemoryID msdk_mid;
va_status = vaCreateBuffer (gst_msdk_context_get_handle (context),
context_id, VAEncCodedBufferType, codedbuf_size, 1, NULL, &coded_buf);
status = gst_msdk_get_mfx_status_from_va_status (va_status);
if (status < MFX_ERR_NONE) {
GST_ERROR ("failed to create buffer");
return status;
}
msdk_mid.surface = coded_buf;
msdk_mid.fourcc = fourcc;
/* Don't use image for P208 */
msdk_mid.image.image_id = VA_INVALID_ID;
msdk_mid.image.buf = VA_INVALID_ID;
mids[i] = (mfxMemId *) & msdk_mid;
}
}
resp->mids = mids;
resp->NumFrameActual = surfaces_num;
msdk_resp->response = *resp;
msdk_resp->request = *req;
msdk_resp->refcount = 1;
gst_msdk_context_add_alloc_response (context, msdk_resp);
/* We need to put all the buffers back to the pool */
for (l = tmp_list; l; l = l->next) {
tmp_surface = (GstMsdkSurface *) l->data;
gst_buffer_unref (tmp_surface->buf);
}
return status;
error_alloc:
g_slice_free1 (surfaces_num * sizeof (mfxMemId), mids);
g_slice_free (GstMsdkAllocResponse, msdk_resp);
return MFX_ERR_MEMORY_ALLOC;
}
mfxStatus
gst_msdk_frame_free (mfxHDL pthis, mfxFrameAllocResponse * resp)
{