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vaapipostproc: add support for raw YUV video source buffers.

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Allow video processing from raw YUV buffers coming from the sink pad,
while still producing a VA surface for the downstream elements.
This commit is contained in:
Gwenole Beauchesne 2013-10-04 15:37:24 +02:00
parent f0d50cfbc2
commit ae5e5be80b
2 changed files with 304 additions and 29 deletions
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325
gst/vaapi/gstvaapipostproc.c
View file

@ -35,6 +35,10 @@
#include "gstvaapipostproc.h"
#include "gstvaapipluginutil.h"
#include "gstvaapivideobuffer.h"
#if GST_CHECK_VERSION(1,0,0)
#include "gstvaapivideobufferpool.h"
#include "gstvaapivideomemory.h"
#endif
#define GST_PLUGIN_NAME "vaapipostproc"
#define GST_PLUGIN_DESC "A video postprocessing filter"
@ -45,6 +49,15 @@ GST_DEBUG_CATEGORY_STATIC(gst_debug_vaapipostproc);
/* Default templates */
static const char gst_vaapipostproc_sink_caps_str[] =
GST_VAAPI_SURFACE_CAPS ", "
GST_CAPS_INTERLACED_MODES "; "
#if GST_CHECK_VERSION(1,0,0)
GST_VIDEO_CAPS_MAKE(GST_VIDEO_FORMATS_ALL) ", "
#else
"video/x-raw-yuv, "
"width = " GST_VIDEO_SIZE_RANGE ", "
"height = " GST_VIDEO_SIZE_RANGE ", "
"framerate = " GST_VIDEO_FPS_RANGE ", "
#endif
GST_CAPS_INTERLACED_MODES;
static const char gst_vaapipostproc_src_caps_str[] =
@ -94,6 +107,9 @@ gst_vaapipostproc_set_video_context(
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(context);
gst_vaapi_set_display(type, value, &postproc->display);
if (postproc->uploader)
gst_vaapi_uploader_ensure_display(postproc->uploader, postproc->display);
}
static void
@ -156,17 +172,54 @@ gst_vaapipostproc_ensure_display(GstVaapiPostproc *postproc)
&postproc->display);
}
static gboolean
gst_vaapipostproc_ensure_uploader(GstVaapiPostproc *postproc)
{
if (!gst_vaapipostproc_ensure_display(postproc))
return FALSE;
if (!postproc->uploader) {
postproc->uploader = gst_vaapi_uploader_new(postproc->display);
if (!postproc->uploader)
return FALSE;
}
if (!gst_vaapi_uploader_ensure_display(postproc->uploader,
postproc->display))
return FALSE;
return TRUE;
}
static gboolean
gst_vaapipostproc_ensure_uploader_caps(GstVaapiPostproc *postproc)
{
#if !GST_CHECK_VERSION(1,0,0)
if (postproc->is_raw_yuv && !gst_vaapi_uploader_ensure_caps(
postproc->uploader, postproc->sinkpad_caps, NULL))
return FALSE;
#endif
return TRUE;
}
static gboolean
gst_vaapipostproc_create(GstVaapiPostproc *postproc)
{
if (!gst_vaapipostproc_ensure_display(postproc))
return FALSE;
if (!gst_vaapipostproc_ensure_uploader(postproc))
return FALSE;
if (!gst_vaapipostproc_ensure_uploader_caps(postproc))
return FALSE;
return TRUE;
}
static void
gst_vaapipostproc_destroy(GstVaapiPostproc *postproc)
{
#if GST_CHECK_VERSION(1,0,0)
g_clear_object(&postproc->sinkpad_buffer_pool);
#endif
g_clear_object(&postproc->uploader);
gst_vaapi_display_replace(&postproc->display, NULL);
gst_caps_replace(&postproc->sinkpad_caps, NULL);
@ -174,13 +227,6 @@ gst_vaapipostproc_destroy(GstVaapiPostproc *postproc)
gst_caps_replace(&postproc->allowed_caps, NULL);
}
static gboolean
gst_vaapipostproc_reset(GstVaapiPostproc *postproc)
{
gst_vaapipostproc_destroy(postproc);
return gst_vaapipostproc_create(postproc);
}
static gboolean
gst_vaapipostproc_start(GstBaseTransform *trans)
{
@ -406,6 +452,18 @@ gst_vaapipostproc_update_sink_caps(GstVaapiPostproc *postproc, GstCaps *caps,
postproc->field_duration = gst_util_uint64_scale(
GST_SECOND, GST_VIDEO_INFO_FPS_D(&vi),
(1 + postproc->deinterlace) * GST_VIDEO_INFO_FPS_N(&vi));
postproc->is_raw_yuv = GST_VIDEO_INFO_IS_YUV(&vi);
#if !GST_CHECK_VERSION(1,0,0)
if (postproc->is_raw_yuv) {
/* Ensure the uploader is set up for upstream allocated buffers */
GstVaapiUploader * const uploader = postproc->uploader;
if (!gst_vaapi_uploader_ensure_display(uploader, postproc->display))
return FALSE;
if (!gst_vaapi_uploader_ensure_caps(uploader, caps, NULL))
return FALSE;
}
#endif
return TRUE;
}
@ -426,13 +484,28 @@ gst_vaapipostproc_update_src_caps(GstVaapiPostproc *postproc, GstCaps *caps,
static gboolean
ensure_allowed_caps(GstVaapiPostproc *postproc)
{
GstCaps *out_caps, *yuv_caps;
if (postproc->allowed_caps)
return TRUE;
postproc->allowed_caps =
gst_caps_from_string(gst_vaapipostproc_sink_caps_str);
if (!postproc->allowed_caps)
/* Create VA caps */
out_caps = gst_caps_from_string(GST_VAAPI_SURFACE_CAPS ", "
GST_CAPS_INTERLACED_MODES);
if (!out_caps) {
GST_ERROR("failed to create VA sink caps");
return FALSE;
}
/* Append YUV caps */
if (gst_vaapipostproc_ensure_uploader(postproc)) {
yuv_caps = gst_vaapi_uploader_get_caps(postproc->uploader);
if (yuv_caps)
gst_caps_append(out_caps, gst_caps_ref(yuv_caps));
else
GST_WARNING("failed to create YUV sink caps");
}
postproc->allowed_caps = out_caps;
/* XXX: append VA/VPP filters */
return TRUE;
@ -479,6 +552,7 @@ gst_vaapipostproc_transform_caps_impl(GstBaseTransform *trans,
GST_VIDEO_INFO_INTERLACE_MODE(&vi) =
GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
}
format = GST_VIDEO_FORMAT_ENCODED;
}
else {
if (is_deinterlace_enabled(postproc, &vi)) {
@ -488,22 +562,29 @@ gst_vaapipostproc_transform_caps_impl(GstBaseTransform *trans,
}
}
/* XXX: gst_video_info_to_caps() from GStreamer 0.10 does not
reconstruct suitable caps for "encoded" video formats */
out_caps = gst_caps_from_string(GST_VAAPI_SURFACE_CAPS_NAME);
if (!out_caps)
return NULL;
if (format != GST_VIDEO_FORMAT_ENCODED) {
out_caps = gst_video_info_to_caps(&vi);
if (!out_caps)
return NULL;
}
else {
/* XXX: gst_video_info_to_caps() from GStreamer 0.10 does not
reconstruct suitable caps for "encoded" video formats */
out_caps = gst_caps_from_string(GST_VAAPI_SURFACE_CAPS_NAME);
if (!out_caps)
return NULL;
par_n = GST_VIDEO_INFO_PAR_N(&vi);
par_d = GST_VIDEO_INFO_PAR_D(&vi);
gst_caps_set_simple(out_caps,
"type", G_TYPE_STRING, "vaapi",
"opengl", G_TYPE_BOOLEAN, USE_GLX,
"width", G_TYPE_INT, GST_VIDEO_INFO_WIDTH(&vi),
"height", G_TYPE_INT, GST_VIDEO_INFO_HEIGHT(&vi),
"framerate", GST_TYPE_FRACTION, fps_n, fps_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION, par_n, par_d,
NULL);
par_n = GST_VIDEO_INFO_PAR_N(&vi);
par_d = GST_VIDEO_INFO_PAR_D(&vi);
gst_caps_set_simple(out_caps,
"type", G_TYPE_STRING, "vaapi",
"opengl", G_TYPE_BOOLEAN, USE_GLX,
"width", G_TYPE_INT, GST_VIDEO_INFO_WIDTH(&vi),
"height", G_TYPE_INT, GST_VIDEO_INFO_HEIGHT(&vi),
"framerate", GST_TYPE_FRACTION, fps_n, fps_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION, par_n, par_d,
NULL);
}
gst_caps_set_interlaced(out_caps, &vi);
return out_caps;
@ -530,17 +611,85 @@ gst_vaapipostproc_transform_caps(GstBaseTransform *trans,
gst_vaapipostproc_transform_caps_impl
#endif
static gboolean
gst_vaapipostproc_transform_size(GstBaseTransform *trans,
GstPadDirection direction, GstCaps *caps, gsize size,
GstCaps *othercaps, gsize *othersize)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
if (direction == GST_PAD_SINK || !postproc->is_raw_yuv)
*othersize = 0;
else
*othersize = size;
return TRUE;
}
static GstBuffer *
get_source_buffer(GstVaapiPostproc *postproc, GstBuffer *inbuf)
{
GstVaapiVideoMeta *meta;
GstBuffer *outbuf;
meta = gst_buffer_get_vaapi_video_meta(inbuf);
if (meta)
return gst_buffer_ref(inbuf);
#if GST_CHECK_VERSION(1,0,0)
outbuf = NULL;
goto error_invalid_buffer;
return outbuf;
/* ERRORS */
error_invalid_buffer:
{
GST_ERROR("failed to validate source buffer");
return NULL;
}
#else
outbuf = gst_vaapi_uploader_get_buffer(postproc->uploader);
if (!outbuf)
goto error_create_buffer;
if (!gst_vaapi_uploader_process(postproc->uploader, inbuf, outbuf))
goto error_copy_buffer;
gst_buffer_copy_metadata(outbuf, inbuf,
GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS);
return outbuf;
/* ERRORS */
error_create_buffer:
{
GST_ERROR("failed to create buffer");
return NULL;
}
error_copy_buffer:
{
GST_ERROR("failed to upload buffer to VA surface");
gst_buffer_unref(outbuf);
return NULL;
}
#endif
}
static GstFlowReturn
gst_vaapipostproc_transform(GstBaseTransform *trans, GstBuffer *inbuf,
GstBuffer *outbuf)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
GstBuffer *buf;
GstFlowReturn ret;
buf = get_source_buffer(postproc, inbuf);
if (!buf)
return GST_FLOW_ERROR;
if (postproc->deinterlace)
ret = gst_vaapipostproc_process(trans, inbuf, outbuf);
ret = gst_vaapipostproc_process(trans, buf, outbuf);
else
ret = gst_vaapipostproc_passthrough(trans, inbuf, outbuf);
ret = gst_vaapipostproc_passthrough(trans, buf, outbuf);
gst_buffer_unref(buf);
return ret;
}
@ -558,6 +707,72 @@ gst_vaapipostproc_prepare_output_buffer(GstBaseTransform *trans,
return *outbuf_ptr ? GST_FLOW_OK : GST_FLOW_ERROR;
}
static gboolean
ensure_sinkpad_buffer_pool(GstVaapiPostproc *postproc, GstCaps *caps)
{
#if GST_CHECK_VERSION(1,0,0)
GstBufferPool *pool;
GstCaps *pool_caps;
GstStructure *config;
GstVideoInfo vi;
gboolean need_pool;
if (!gst_vaapipostproc_ensure_display(postproc))
return FALSE;
if (postproc->sinkpad_buffer_pool) {
config = gst_buffer_pool_get_config(postproc->sinkpad_buffer_pool);
gst_buffer_pool_config_get_params(config, &pool_caps, NULL, NULL, NULL);
need_pool = !gst_caps_is_equal(caps, pool_caps);
gst_structure_free(config);
if (!need_pool)
return TRUE;
g_clear_object(&postproc->sinkpad_buffer_pool);
postproc->sinkpad_buffer_size = 0;
}
pool = gst_vaapi_video_buffer_pool_new(postproc->display);
if (!pool)
goto error_create_pool;
gst_video_info_init(&vi);
gst_video_info_from_caps(&vi, caps);
if (GST_VIDEO_INFO_FORMAT(&vi) == GST_VIDEO_FORMAT_ENCODED) {
GST_DEBUG("assume sink pad buffer pool format is NV12");
gst_video_info_set_format(&vi, GST_VIDEO_FORMAT_NV12,
GST_VIDEO_INFO_WIDTH(&vi), GST_VIDEO_INFO_HEIGHT(&vi));
}
postproc->sinkpad_buffer_size = vi.size;
config = gst_buffer_pool_get_config(pool);
gst_buffer_pool_config_set_params(config, caps,
postproc->sinkpad_buffer_size, 0, 0);
gst_buffer_pool_config_add_option(config,
GST_BUFFER_POOL_OPTION_VAAPI_VIDEO_META);
gst_buffer_pool_config_add_option(config,
GST_BUFFER_POOL_OPTION_VIDEO_META);
if (!gst_buffer_pool_set_config(pool, config))
goto error_pool_config;
postproc->sinkpad_buffer_pool = pool;
return TRUE;
/* ERRORS */
error_create_pool:
{
GST_ERROR("failed to create buffer pool");
return FALSE;
}
error_pool_config:
{
GST_ERROR("failed to reset buffer pool config");
gst_object_unref(pool);
return FALSE;
}
#else
return TRUE;
#endif
}
static gboolean
gst_vaapipostproc_set_caps(GstBaseTransform *trans, GstCaps *caps,
GstCaps *out_caps)
@ -571,11 +786,15 @@ gst_vaapipostproc_set_caps(GstBaseTransform *trans, GstCaps *caps,
return FALSE;
if (caps_changed) {
if (!gst_vaapipostproc_reset(postproc))
return FALSE;
gst_vaapipostproc_destroy(postproc);
gst_caps_replace(&postproc->sinkpad_caps, caps);
gst_caps_replace(&postproc->srcpad_caps, out_caps);
if (!gst_vaapipostproc_create(postproc))
return FALSE;
}
if (!ensure_sinkpad_buffer_pool(postproc, caps))
return FALSE;
return TRUE;
}
@ -596,6 +815,49 @@ gst_vaapipostproc_query(GstBaseTransform *trans, GstPadDirection direction,
trans, direction, query);
}
#if GST_CHECK_VERSION(1,0,0)
static gboolean
gst_vaapipostproc_propose_allocation(GstBaseTransform *trans,
GstQuery *decide_query, GstQuery *query)
{
GstVaapiPostproc * const postproc = GST_VAAPIPOSTPROC(trans);
GstCaps *caps = NULL;
gboolean need_pool;
/* Let vaapidecode allocate the video buffers */
if (!postproc->is_raw_yuv)
return FALSE;
gst_query_parse_allocation(query, &caps, &need_pool);
if (need_pool) {
if (!caps)
goto error_no_caps;
if (!ensure_sinkpad_buffer_pool(postproc, caps))
return FALSE;
gst_query_add_allocation_pool(query, postproc->sinkpad_buffer_pool,
postproc->sinkpad_buffer_size, 0, 0);
}
gst_query_add_allocation_meta(query,
GST_VAAPI_VIDEO_META_API_TYPE, NULL);
gst_query_add_allocation_meta(query,
GST_VIDEO_META_API_TYPE, NULL);
gst_query_add_allocation_meta(query,
GST_VIDEO_CROP_META_API_TYPE, NULL);
gst_query_add_allocation_meta(query,
GST_VIDEO_OVERLAY_COMPOSITION_META_API_TYPE, NULL);
return TRUE;
/* ERRORS */
error_no_caps:
{
GST_ERROR("no caps specified");
return FALSE;
}
}
#endif
static void
gst_vaapipostproc_finalize(GObject *object)
{
@ -669,10 +931,15 @@ gst_vaapipostproc_class_init(GstVaapiPostprocClass *klass)
trans_class->start = gst_vaapipostproc_start;
trans_class->stop = gst_vaapipostproc_stop;
trans_class->transform_caps = gst_vaapipostproc_transform_caps;
trans_class->transform_size = gst_vaapipostproc_transform_size;
trans_class->transform = gst_vaapipostproc_transform;
trans_class->set_caps = gst_vaapipostproc_set_caps;
trans_class->query = gst_vaapipostproc_query;
#if GST_CHECK_VERSION(1,0,0)
trans_class->propose_allocation = gst_vaapipostproc_propose_allocation;
#endif
trans_class->prepare_output_buffer =
gst_vaapipostproc_prepare_output_buffer;

8
gst/vaapi/gstvaapipostproc.h
View file

@ -27,6 +27,7 @@
#include <gst/vaapi/gstvaapisurface.h>
#include <gst/vaapi/gstvaapisurfacepool.h>
#include <gst/vaapi/gstvaapifilter.h>
#include "gstvaapiuploader.h"
G_BEGIN_DECLS
@ -74,9 +75,16 @@ struct _GstVaapiPostproc {
GstBaseTransform parent_instance;
GstVaapiDisplay *display;
GstVaapiUploader *uploader;
gboolean is_raw_yuv;
GstCaps *allowed_caps;
GstCaps *sinkpad_caps;
GstVideoInfo sinkpad_info;
#if GST_CHECK_VERSION(1,0,0)
GstBufferPool *sinkpad_buffer_pool;
#endif
guint sinkpad_buffer_size;
GstCaps *srcpad_caps;
GstVideoInfo srcpad_info;