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gstreamer/sys/nvcodec/gstnvdec.c
Seungha Yang 694f91da88 nvdec: Make OpenGL dependency optional 
By adding system memory support for nvdec, both en/decoder
in the nvcodec plugin are able to be usable regardless of
OpenGL dependency. Besides, the direct use of system memory
might have less overhead than OpenGL memory depending on use cases.
(e.g., transcoding using S/W encoder)
2019-07-26 00:01:23 +00:00

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/*
* Copyright (C) 2017 Ericsson AB. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstnvdec.h"
GST_DEBUG_CATEGORY_STATIC (gst_nvdec_debug_category);
#define GST_CAT_DEFAULT gst_nvdec_debug_category
#ifdef HAVE_NVCODEC_GST_GL
static gboolean
gst_nvdec_copy_device_to_gl (GstNvDec * nvdec,
CUVIDPARSERDISPINFO * dispinfo, GstBuffer * output_buffer);
#endif
static gboolean
gst_nvdec_copy_device_to_system (GstNvDec * nvdec,
CUVIDPARSERDISPINFO * dispinfo, GstBuffer * output_buffer);
static inline gboolean
cuda_OK (CUresult result)
{
const gchar *error_name, *error_text;
if (result != CUDA_SUCCESS) {
CuGetErrorName (result, &error_name);
CuGetErrorString (result, &error_text);
GST_WARNING ("CUDA call failed: %s, %s", error_name, error_text);
return FALSE;
}
return TRUE;
}
#ifdef HAVE_NVCODEC_GST_GL
typedef struct _GstNvDecCudaGraphicsResourceInfo
{
GstGLContext *gl_context;
GstNvDec *nvdec;
CUgraphicsResource resource;
} GstNvDecCudaGraphicsResourceInfo;
static void
register_cuda_resource (GstGLContext * context, gpointer * args)
{
GstMemory *mem = GST_MEMORY_CAST (args[0]);
GstNvDecCudaGraphicsResourceInfo *cgr_info =
(GstNvDecCudaGraphicsResourceInfo *) args[1];
GstMapInfo map_info = GST_MAP_INFO_INIT;
guint texture_id;
GstNvDec *nvdec = cgr_info->nvdec;
if (!cuda_OK (CuvidCtxLock (nvdec->ctx_lock, 0)))
GST_WARNING_OBJECT (nvdec, "failed to lock CUDA context");
if (gst_memory_map (mem, &map_info, GST_MAP_READ | GST_MAP_GL)) {
texture_id = *(guint *) map_info.data;
if (!cuda_OK (CuGraphicsGLRegisterImage (&cgr_info->resource, texture_id,
GL_TEXTURE_2D, CU_GRAPHICS_REGISTER_FLAGS_WRITE_DISCARD)))
GST_WARNING_OBJECT (nvdec, "failed to register texture with CUDA");
gst_memory_unmap (mem, &map_info);
} else
GST_WARNING_OBJECT (nvdec, "failed to map memory");
if (!cuda_OK (CuvidCtxUnlock (nvdec->ctx_lock, 0)))
GST_WARNING_OBJECT (nvdec, "failed to unlock CUDA context");
}
static void
unregister_cuda_resource (GstGLContext * context,
GstNvDecCudaGraphicsResourceInfo * cgr_info)
{
GstNvDec *nvdec = cgr_info->nvdec;
if (!cuda_OK (CuvidCtxLock (nvdec->ctx_lock, 0)))
GST_WARNING_OBJECT (nvdec, "failed to lock CUDA context");
if (!cuda_OK (CuGraphicsUnregisterResource ((const CUgraphicsResource)
cgr_info->resource)))
GST_WARNING_OBJECT (nvdec, "failed to unregister resource");
if (!cuda_OK (CuvidCtxUnlock (nvdec->ctx_lock, 0)))
GST_WARNING_OBJECT (nvdec, "failed to unlock CUDA context");
}
static void
free_cgr_info (GstNvDecCudaGraphicsResourceInfo * cgr_info)
{
gst_gl_context_thread_add (cgr_info->gl_context,
(GstGLContextThreadFunc) unregister_cuda_resource, cgr_info);
gst_object_unref (cgr_info->gl_context);
g_slice_free (GstNvDecCudaGraphicsResourceInfo, cgr_info);
}
static CUgraphicsResource
ensure_cuda_graphics_resource (GstMemory * mem, GstNvDec * nvdec)
{
static GQuark quark = 0;
GstNvDecCudaGraphicsResourceInfo *cgr_info;
gpointer args[2];
if (!gst_is_gl_base_memory (mem)) {
GST_WARNING ("memory is not GL base memory");
return NULL;
}
if (!quark)
quark = g_quark_from_static_string ("GstNvDecCudaGraphicsResourceInfo");
cgr_info = gst_mini_object_get_qdata (GST_MINI_OBJECT (mem), quark);
if (!cgr_info) {
cgr_info = g_slice_new (GstNvDecCudaGraphicsResourceInfo);
cgr_info->gl_context =
gst_object_ref (GST_GL_BASE_MEMORY_CAST (mem)->context);
cgr_info->nvdec = nvdec;
args[0] = mem;
args[1] = cgr_info;
gst_gl_context_thread_add (cgr_info->gl_context,
(GstGLContextThreadFunc) register_cuda_resource, args);
gst_mini_object_set_qdata (GST_MINI_OBJECT (mem), quark, cgr_info,
(GDestroyNotify) free_cgr_info);
}
return cgr_info->resource;
}
#endif /* HAVE_NVCODEC_GST_GL */
static gboolean gst_nvdec_open (GstVideoDecoder * decoder);
static gboolean gst_nvdec_start (GstVideoDecoder * decoder);
static gboolean gst_nvdec_stop (GstVideoDecoder * decoder);
static gboolean gst_nvdec_set_format (GstVideoDecoder * decoder,
GstVideoCodecState * state);
static GstFlowReturn gst_nvdec_handle_frame (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame);
static gboolean gst_nvdec_decide_allocation (GstVideoDecoder * decoder,
GstQuery * query);
static void gst_nvdec_set_context (GstElement * element, GstContext * context);
static gboolean gst_nvdec_src_query (GstVideoDecoder * decoder,
GstQuery * query);
static gboolean gst_nvdec_flush (GstVideoDecoder * decoder);
static GstFlowReturn gst_nvdec_drain (GstVideoDecoder * decoder);
static GstFlowReturn gst_nvdec_finish (GstVideoDecoder * decoder);
G_DEFINE_ABSTRACT_TYPE (GstNvDec, gst_nvdec, GST_TYPE_VIDEO_DECODER);
static void
gst_nvdec_class_init (GstNvDecClass * klass)
{
GstVideoDecoderClass *video_decoder_class = GST_VIDEO_DECODER_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
video_decoder_class->open = GST_DEBUG_FUNCPTR (gst_nvdec_open);
video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_nvdec_start);
video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_nvdec_stop);
video_decoder_class->set_format = GST_DEBUG_FUNCPTR (gst_nvdec_set_format);
video_decoder_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_nvdec_handle_frame);
video_decoder_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_nvdec_decide_allocation);
video_decoder_class->src_query = GST_DEBUG_FUNCPTR (gst_nvdec_src_query);
video_decoder_class->drain = GST_DEBUG_FUNCPTR (gst_nvdec_drain);
video_decoder_class->flush = GST_DEBUG_FUNCPTR (gst_nvdec_flush);
video_decoder_class->finish = GST_DEBUG_FUNCPTR (gst_nvdec_finish);
element_class->set_context = GST_DEBUG_FUNCPTR (gst_nvdec_set_context);
}
static void
gst_nvdec_init (GstNvDec * nvdec)
{
gst_video_decoder_set_packetized (GST_VIDEO_DECODER (nvdec), TRUE);
gst_video_decoder_set_needs_format (GST_VIDEO_DECODER (nvdec), TRUE);
}
static gboolean
parser_sequence_callback (GstNvDec * nvdec, CUVIDEOFORMAT * format)
{
guint width, height, fps_n, fps_d;
CUVIDDECODECREATEINFO create_info = { 0, };
GstVideoFormat out_format = GST_VIDEO_FORMAT_NV12;
width = format->display_area.right - format->display_area.left;
height = format->display_area.bottom - format->display_area.top;
GST_DEBUG_OBJECT (nvdec, "width: %u, height: %u", width, height);
if (!nvdec->decoder || (nvdec->width != width || nvdec->height != height)) {
if (!cuda_OK (CuvidCtxLock (nvdec->ctx_lock, 0))) {
GST_ERROR_OBJECT (nvdec, "failed to lock CUDA context");
goto error;
}
if (nvdec->decoder) {
GST_DEBUG_OBJECT (nvdec, "destroying decoder");
if (!cuda_OK (CuvidDestroyDecoder (nvdec->decoder))) {
GST_ERROR_OBJECT (nvdec, "failed to destroy decoder");
goto error;
} else
nvdec->decoder = NULL;
}
GST_DEBUG_OBJECT (nvdec, "creating decoder");
create_info.ulWidth = width;
create_info.ulHeight = height;
create_info.ulNumDecodeSurfaces = 20;
create_info.CodecType = format->codec;
create_info.ChromaFormat = format->chroma_format;
create_info.ulCreationFlags = cudaVideoCreate_Default;
create_info.display_area.left = format->display_area.left;
create_info.display_area.top = format->display_area.top;
create_info.display_area.right = format->display_area.right;
create_info.display_area.bottom = format->display_area.bottom;
create_info.OutputFormat = cudaVideoSurfaceFormat_NV12;
create_info.bitDepthMinus8 = format->bit_depth_luma_minus8;
if (format->bit_depth_luma_minus8 > 0) {
GST_DEBUG_OBJECT (nvdec, "out format bitdepth : %d",
format->bit_depth_luma_minus8 + 8);
create_info.OutputFormat = cudaVideoSurfaceFormat_P016;
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
out_format = GST_VIDEO_FORMAT_P010_10LE;
#else
out_format = GST_VIDEO_FORMAT_P010_10BE;
#endif
}
create_info.DeinterlaceMode = cudaVideoDeinterlaceMode_Weave;
create_info.ulTargetWidth = width;
create_info.ulTargetHeight = height;
create_info.ulNumOutputSurfaces = 1;
create_info.vidLock = nvdec->ctx_lock;
create_info.target_rect.left = 0;
create_info.target_rect.top = 0;
create_info.target_rect.right = width;
create_info.target_rect.bottom = height;
if (nvdec->decoder
|| !cuda_OK (CuvidCreateDecoder (&nvdec->decoder, &create_info))) {
GST_ERROR_OBJECT (nvdec, "failed to create decoder");
goto error;
}
if (!cuda_OK (CuvidCtxUnlock (nvdec->ctx_lock, 0))) {
GST_ERROR_OBJECT (nvdec, "failed to unlock CUDA context");
goto error;
}
}
fps_n = format->frame_rate.numerator;
fps_d = MAX (1, format->frame_rate.denominator);
if (!gst_pad_has_current_caps (GST_VIDEO_DECODER_SRC_PAD (nvdec))
|| width != nvdec->width || height != nvdec->height
|| fps_n != nvdec->fps_n || fps_d != nvdec->fps_d) {
GstVideoCodecState *state;
GstVideoInfo *vinfo;
GstStructure *in_s = NULL;
nvdec->width = width;
nvdec->height = height;
nvdec->fps_n = fps_n;
nvdec->fps_d = fps_d;
state = gst_video_decoder_set_output_state (GST_VIDEO_DECODER (nvdec),
out_format, nvdec->width, nvdec->height, nvdec->input_state);
vinfo = &state->info;
vinfo->fps_n = fps_n;
vinfo->fps_d = fps_d;
if (format->progressive_sequence) {
vinfo->interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
/* nvdec doesn't seem to deal with interlacing with hevc so rely
* on upstream's value */
if (format->codec == cudaVideoCodec_HEVC) {
vinfo->interlace_mode = nvdec->input_state->info.interlace_mode;
}
} else {
vinfo->interlace_mode = GST_VIDEO_INTERLACE_MODE_MIXED;
}
GST_LOG_OBJECT (nvdec,
"Reading colorimetry information full-range %d matrix %d transfer %d primaries %d",
format->video_signal_description.video_full_range_flag,
format->video_signal_description.matrix_coefficients,
format->video_signal_description.transfer_characteristics,
format->video_signal_description.color_primaries);
if (nvdec->input_state->caps)
in_s = gst_caps_get_structure (nvdec->input_state->caps, 0);
/* Set colorimetry when upstream did not provide it */
if (in_s && !gst_structure_has_field (in_s, "colorimetry")) {
GstVideoColorimetry colorimetry = { 0, };
if (format->video_signal_description.video_full_range_flag)
colorimetry.range = GST_VIDEO_COLOR_RANGE_0_255;
else
colorimetry.range = GST_VIDEO_COLOR_RANGE_16_235;
colorimetry.primaries =
gst_video_color_primaries_from_iso
(format->video_signal_description.color_primaries);
colorimetry.transfer =
gst_video_color_transfer_from_iso
(format->video_signal_description.transfer_characteristics);
colorimetry.matrix =
gst_video_color_matrix_from_iso
(format->video_signal_description.matrix_coefficients);
/* Use a colorimetry having at least one valid colorimetry entry,
* because we don't know whether the returned
* colorimetry (by nvdec) was actually parsed information or not.
* Otherwise let GstVideoInfo handle it with default colorimetry */
if (colorimetry.primaries != GST_VIDEO_COLOR_PRIMARIES_UNKNOWN ||
colorimetry.transfer != GST_VIDEO_TRANSFER_UNKNOWN ||
colorimetry.matrix != GST_VIDEO_COLOR_MATRIX_UNKNOWN) {
GST_DEBUG_OBJECT (nvdec,
"Found valid colorimetry, update output colorimetry");
vinfo->colorimetry = colorimetry;
}
}
state->caps = gst_video_info_to_caps (&state->info);
nvdec->mem_type = GST_NVDEC_MEM_TYPE_SYSTEM;
#ifdef HAVE_NVCODEC_GST_GL
{
GstCaps *caps;
caps = gst_pad_get_allowed_caps (GST_VIDEO_DECODER_SRC_PAD (nvdec));
GST_DEBUG_OBJECT (nvdec, "Allowed caps %" GST_PTR_FORMAT, caps);
if (!caps || gst_caps_is_any (caps)) {
GST_DEBUG_OBJECT (nvdec,
"cannot determine output format, use system memory");
} else if (nvdec->gl_display) {
GstCapsFeatures *features;
guint size = gst_caps_get_size (caps);
guint i;
for (i = 0; i < size; i++) {
features = gst_caps_get_features (caps, i);
if (features && gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY)) {
GST_DEBUG_OBJECT (nvdec, "found GL memory feature, use gl");
nvdec->mem_type = GST_NVDEC_MEM_TYPE_GL;
break;
}
}
}
gst_clear_caps (&caps);
}
if (nvdec->mem_type == GST_NVDEC_MEM_TYPE_GL) {
gst_caps_set_features (state->caps, 0,
gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_GL_MEMORY, NULL));
gst_caps_set_simple (state->caps, "texture-target", G_TYPE_STRING,
"2D", NULL);
} else {
GST_DEBUG_OBJECT (nvdec, "use system memory");
}
#endif
if (nvdec->output_state)
gst_video_codec_state_unref (nvdec->output_state);
nvdec->output_state = state;
if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (nvdec))) {
GST_WARNING_OBJECT (nvdec, "failed to negotiate with downstream");
nvdec->last_ret = GST_FLOW_NOT_NEGOTIATED;
return FALSE;
}
}
return TRUE;
error:
nvdec->last_ret = GST_FLOW_ERROR;
return FALSE;
}
static gboolean
parser_decode_callback (GstNvDec * nvdec, CUVIDPICPARAMS * params)
{
GList *iter, *pending_frames;
GST_LOG_OBJECT (nvdec, "picture index: %u", params->CurrPicIdx);
if (!cuda_OK (CuvidCtxLock (nvdec->ctx_lock, 0))) {
GST_ERROR_OBJECT (nvdec, "failed to lock CUDA context");
goto error;
}
if (!cuda_OK (CuvidDecodePicture (nvdec->decoder, params))) {
GST_ERROR_OBJECT (nvdec, "failed to decode picture");
goto error;
}
if (!cuda_OK (CuvidCtxUnlock (nvdec->ctx_lock, 0))) {
GST_ERROR_OBJECT (nvdec, "failed to unlock CUDA context");
goto error;
}
pending_frames = gst_video_decoder_get_frames (GST_VIDEO_DECODER (nvdec));
/* NOTE: this decode callback could be invoked multiple times for
* one cuvidParseVideoData() call. Most likely it can be related to "decode only"
* frame of VPX codec but no document available.
* In that case, the last decoded frame seems to be displayed */
for (iter = pending_frames; iter; iter = g_list_next (iter)) {
guint id;
GstVideoCodecFrame *frame = (GstVideoCodecFrame *) iter->data;
gboolean set_data = FALSE;
id = GPOINTER_TO_UINT (gst_video_codec_frame_get_user_data (frame));
if (G_UNLIKELY (nvdec->state == GST_NVDEC_STATE_DECODE)) {
if (id) {
GST_LOG_OBJECT (nvdec, "reset the last user data");
set_data = TRUE;
}
} else if (!id) {
set_data = TRUE;
}
if (set_data) {
gst_video_codec_frame_set_user_data (frame,
GUINT_TO_POINTER (params->CurrPicIdx + 1), NULL);
break;
}
}
nvdec->state = GST_NVDEC_STATE_DECODE;
g_list_free_full (pending_frames,
(GDestroyNotify) gst_video_codec_frame_unref);
return TRUE;
error:
nvdec->last_ret = GST_FLOW_ERROR;
return FALSE;
}
static gboolean
parser_display_callback (GstNvDec * nvdec, CUVIDPARSERDISPINFO * dispinfo)
{
GList *iter, *pending_frames;
GstVideoCodecFrame *frame = NULL;
GstBuffer *output_buffer = NULL;
GstFlowReturn ret = GST_FLOW_OK;
gboolean copy_ret;
GST_LOG_OBJECT (nvdec, "picture index: %u", dispinfo->picture_index);
pending_frames = gst_video_decoder_get_frames (GST_VIDEO_DECODER (nvdec));
for (iter = pending_frames; iter; iter = g_list_next (iter)) {
guint id;
GstVideoCodecFrame *tmp = (GstVideoCodecFrame *) iter->data;
id = GPOINTER_TO_UINT (gst_video_codec_frame_get_user_data (tmp));
if (id == dispinfo->picture_index + 1) {
frame = gst_video_codec_frame_ref (tmp);
break;
}
}
g_list_free_full (pending_frames,
(GDestroyNotify) gst_video_codec_frame_unref);
if (G_UNLIKELY (frame == NULL)) {
GST_WARNING_OBJECT (nvdec, "no frame for picture index %u",
dispinfo->picture_index);
output_buffer =
gst_video_decoder_allocate_output_buffer (GST_VIDEO_DECODER (nvdec));
if (!output_buffer) {
GST_ERROR_OBJECT (nvdec, "Couldn't allocate output buffer");
nvdec->last_ret = GST_FLOW_ERROR;
return FALSE;
}
GST_BUFFER_PTS (output_buffer) = dispinfo->timestamp;
GST_BUFFER_DTS (output_buffer) = GST_CLOCK_TIME_NONE;
/* assume buffer duration from framerate */
GST_BUFFER_DURATION (output_buffer) =
gst_util_uint64_scale (GST_SECOND, nvdec->fps_d, nvdec->fps_n);
} else {
ret = gst_video_decoder_allocate_output_frame (GST_VIDEO_DECODER (nvdec),
frame);
if (ret != GST_FLOW_OK) {
GST_WARNING_OBJECT (nvdec, "failed to allocate output frame");
nvdec->last_ret = ret;
return FALSE;
}
output_buffer = frame->output_buffer;
if (dispinfo->timestamp != frame->pts) {
GST_INFO_OBJECT (nvdec,
"timestamp mismatch, diff: %" GST_STIME_FORMAT,
GST_STIME_ARGS (GST_CLOCK_DIFF (dispinfo->timestamp, frame->pts)));
frame->pts = dispinfo->timestamp;
}
}
#ifdef HAVE_NVCODEC_GST_GL
if (nvdec->mem_type == GST_NVDEC_MEM_TYPE_GL) {
copy_ret = gst_nvdec_copy_device_to_gl (nvdec, dispinfo, output_buffer);
} else
#endif
{
copy_ret = gst_nvdec_copy_device_to_system (nvdec, dispinfo, output_buffer);
}
if (!copy_ret) {
GST_ERROR_OBJECT (nvdec, "failed to copy decoded picture to output buffer");
nvdec->last_ret = GST_FLOW_ERROR;
if (frame)
gst_video_decoder_drop_frame (GST_VIDEO_DECODER (nvdec), frame);
else
gst_buffer_unref (output_buffer);
return FALSE;
}
if (!dispinfo->progressive_frame) {
GST_BUFFER_FLAG_SET (output_buffer, GST_VIDEO_BUFFER_FLAG_INTERLACED);
if (dispinfo->top_field_first) {
GST_BUFFER_FLAG_SET (output_buffer, GST_VIDEO_BUFFER_FLAG_TFF);
}
if (dispinfo->repeat_first_field == -1) {
GST_BUFFER_FLAG_SET (output_buffer, GST_VIDEO_BUFFER_FLAG_ONEFIELD);
} else {
GST_BUFFER_FLAG_SET (output_buffer, GST_VIDEO_BUFFER_FLAG_RFF);
}
}
if (frame) {
ret = gst_video_decoder_finish_frame (GST_VIDEO_DECODER (nvdec), frame);
} else {
ret = gst_pad_push (GST_VIDEO_DECODER_SRC_PAD (nvdec), output_buffer);
}
if (ret != GST_FLOW_OK) {
GST_DEBUG_OBJECT (nvdec, "failed to finish frame %s",
gst_flow_get_name (ret));
nvdec->last_ret = ret;
return FALSE;
}
return TRUE;
}
static gboolean
gst_nvdec_open (GstVideoDecoder * decoder)
{
GstNvDec *nvdec = GST_NVDEC (decoder);
GstNvDecClass *klass = GST_NVDEC_GET_CLASS (nvdec);
GST_DEBUG_OBJECT (nvdec, "creating CUDA context");
if (!cuda_OK (CuInit (0))) {
GST_ERROR_OBJECT (nvdec, "failed to init CUDA");
return FALSE;
}
if (!cuda_OK (CuCtxCreate (&nvdec->context, 0, klass->cuda_device_id))) {
GST_ERROR_OBJECT (nvdec,
"failed to create CUDA context with device id %d",
klass->cuda_device_id);
return FALSE;
}
if (!cuda_OK (CuCtxPopCurrent (NULL))) {
GST_ERROR_OBJECT (nvdec, "failed to pop current CUDA context");
CuCtxDestroy (nvdec->context);
nvdec->context = NULL;
return FALSE;
}
if (!cuda_OK (CuvidCtxLockCreate (&nvdec->ctx_lock, nvdec->context))) {
GST_ERROR_OBJECT (nvdec, "failed to create CUDA context lock");
CuCtxDestroy (nvdec->context);
nvdec->context = NULL;
return FALSE;
}
#if HAVE_NVCODEC_GST_GL
gst_gl_ensure_element_data (GST_ELEMENT (nvdec),
&nvdec->gl_display, &nvdec->other_gl_context);
#endif
return TRUE;
}
static gboolean
gst_nvdec_start (GstVideoDecoder * decoder)
{
GstNvDec *nvdec = GST_NVDEC (decoder);
nvdec->state = GST_NVDEC_STATE_INIT;
nvdec->last_ret = GST_FLOW_OK;
return TRUE;
}
static gboolean
maybe_destroy_decoder_and_parser (GstNvDec * nvdec)
{
gboolean ret = TRUE;
if (!cuda_OK (CuvidCtxLock (nvdec->ctx_lock, 0))) {
GST_ERROR_OBJECT (nvdec, "failed to lock CUDA context");
return FALSE;
}
if (nvdec->decoder) {
GST_DEBUG_OBJECT (nvdec, "destroying decoder");
ret = cuda_OK (CuvidDestroyDecoder (nvdec->decoder));
if (ret)
nvdec->decoder = NULL;
else
GST_ERROR_OBJECT (nvdec, "failed to destroy decoder");
}
if (!cuda_OK (CuvidCtxUnlock (nvdec->ctx_lock, 0))) {
GST_ERROR_OBJECT (nvdec, "failed to unlock CUDA context");
return FALSE;
}
if (nvdec->parser) {
GST_DEBUG_OBJECT (nvdec, "destroying parser");
if (!cuda_OK (CuvidDestroyVideoParser (nvdec->parser))) {
GST_ERROR_OBJECT (nvdec, "failed to destroy parser");
return FALSE;
}
nvdec->parser = NULL;
}
return ret;
}
static gboolean
gst_nvdec_stop (GstVideoDecoder * decoder)
{
GstNvDec *nvdec = GST_NVDEC (decoder);
GST_DEBUG_OBJECT (nvdec, "stop");
if (!maybe_destroy_decoder_and_parser (nvdec))
return FALSE;
#ifdef HAVE_NVCODEC_GST_GL
if (nvdec->gl_context) {
gst_object_unref (nvdec->gl_context);
nvdec->gl_context = NULL;
}
if (nvdec->other_gl_context) {
gst_object_unref (nvdec->other_gl_context);
nvdec->other_gl_context = NULL;
}
if (nvdec->gl_display) {
gst_object_unref (nvdec->gl_display);
nvdec->gl_display = NULL;
}
#endif
if (nvdec->input_state) {
gst_video_codec_state_unref (nvdec->input_state);
nvdec->input_state = NULL;
}
if (nvdec->output_state) {
gst_video_codec_state_unref (nvdec->output_state);
nvdec->output_state = NULL;
}
if (nvdec->ctx_lock) {
CuvidCtxLockDestroy (nvdec->ctx_lock);
nvdec->ctx_lock = NULL;
}
if (nvdec->context) {
CuCtxDestroy (nvdec->context);
nvdec->context = NULL;
}
return TRUE;
}
static gboolean
gst_nvdec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state)
{
GstNvDec *nvdec = GST_NVDEC (decoder);
GstNvDecClass *klass = GST_NVDEC_GET_CLASS (decoder);
CUVIDPARSERPARAMS parser_params = { 0, };
GST_DEBUG_OBJECT (nvdec, "set format");
if (nvdec->input_state)
gst_video_codec_state_unref (nvdec->input_state);
nvdec->input_state = gst_video_codec_state_ref (state);
if (!maybe_destroy_decoder_and_parser (nvdec))
return FALSE;
parser_params.CodecType = klass->codec_type;
parser_params.ulMaxNumDecodeSurfaces = 20;
parser_params.ulErrorThreshold = 100;
parser_params.ulMaxDisplayDelay = 0;
parser_params.ulClockRate = GST_SECOND;
parser_params.pUserData = nvdec;
parser_params.pfnSequenceCallback =
(PFNVIDSEQUENCECALLBACK) parser_sequence_callback;
parser_params.pfnDecodePicture =
(PFNVIDDECODECALLBACK) parser_decode_callback;
parser_params.pfnDisplayPicture =
(PFNVIDDISPLAYCALLBACK) parser_display_callback;
GST_DEBUG_OBJECT (nvdec, "creating parser");
if (!cuda_OK (CuvidCreateVideoParser (&nvdec->parser, &parser_params))) {
GST_ERROR_OBJECT (nvdec, "failed to create parser");
return FALSE;
}
return TRUE;
}
#ifdef HAVE_NVCODEC_GST_GL
typedef struct
{
GstNvDec *nvdec;
CUVIDPARSERDISPINFO *dispinfo;
CUgraphicsResource *resources;
guint num_resources;
gboolean ret;
} GstNvDecCopyToGLData;
static void
copy_video_frame_to_gl_textures (GstGLContext * context,
GstNvDecCopyToGLData * data)
{
GstNvDec *nvdec = data->nvdec;
CUVIDPARSERDISPINFO *dispinfo = data->dispinfo;
CUgraphicsResource *resources = data->resources;
guint num_resources = data->num_resources;
CUVIDPROCPARAMS proc_params = { 0, };
guintptr dptr;
CUarray array;
guint pitch, i;
CUDA_MEMCPY2D mcpy2d = { 0, };
GstVideoInfo *info = &nvdec->output_state->info;
GST_LOG_OBJECT (nvdec, "picture index: %u", dispinfo->picture_index);
proc_params.progressive_frame = dispinfo->progressive_frame;
proc_params.top_field_first = dispinfo->top_field_first;
proc_params.unpaired_field = dispinfo->repeat_first_field == -1;
data->ret = TRUE;
if (!cuda_OK (CuvidCtxLock (nvdec->ctx_lock, 0))) {
GST_WARNING_OBJECT (nvdec, "failed to lock CUDA context");
data->ret = FALSE;
return;
}
if (!cuda_OK (CuvidMapVideoFrame (nvdec->decoder, dispinfo->picture_index,
&dptr, &pitch, &proc_params))) {
GST_WARNING_OBJECT (nvdec, "failed to map CUDA video frame");
data->ret = FALSE;
goto unlock_cuda_context;
}
if (!cuda_OK (CuGraphicsMapResources (num_resources, resources, NULL))) {
GST_WARNING_OBJECT (nvdec, "failed to map CUDA resources");
data->ret = FALSE;
goto unmap_video_frame;
}
mcpy2d.srcMemoryType = CU_MEMORYTYPE_DEVICE;
mcpy2d.srcPitch = pitch;
mcpy2d.dstMemoryType = CU_MEMORYTYPE_ARRAY;
mcpy2d.dstPitch = GST_VIDEO_INFO_WIDTH (info);
mcpy2d.WidthInBytes = GST_VIDEO_INFO_COMP_WIDTH (info, 0)
* GST_VIDEO_INFO_COMP_PSTRIDE (info, 0);
for (i = 0; i < num_resources; i++) {
if (!cuda_OK (CuGraphicsSubResourceGetMappedArray (&array, resources[i], 0,
0))) {
GST_WARNING_OBJECT (nvdec, "failed to map CUDA array");
data->ret = FALSE;
break;
}
mcpy2d.srcDevice = dptr + (i * pitch * nvdec->height);
mcpy2d.dstArray = array;
mcpy2d.Height = GST_VIDEO_INFO_COMP_HEIGHT (info, i);
if (!cuda_OK (CuMemcpy2DAsync (&mcpy2d, 0))) {
GST_WARNING_OBJECT (nvdec, "memcpy to mapped array failed");
data->ret = FALSE;
}
}
CuStreamSynchronize (0);
if (!cuda_OK (CuGraphicsUnmapResources (num_resources, resources, NULL)))
GST_WARNING_OBJECT (nvdec, "failed to unmap CUDA resources");
unmap_video_frame:
if (!cuda_OK (CuvidUnmapVideoFrame (nvdec->decoder, dptr)))
GST_WARNING_OBJECT (nvdec, "failed to unmap CUDA video frame");
unlock_cuda_context:
if (!cuda_OK (CuvidCtxUnlock (nvdec->ctx_lock, 0)))
GST_WARNING_OBJECT (nvdec, "failed to unlock CUDA context");
}
static gboolean
gst_nvdec_copy_device_to_gl (GstNvDec * nvdec,
CUVIDPARSERDISPINFO * dispinfo, GstBuffer * output_buffer)
{
guint i;
GstMemory *mem;
GstNvDecCopyToGLData data = { 0, };
data.nvdec = nvdec;
data.dispinfo = dispinfo;
data.num_resources = gst_buffer_n_memory (output_buffer);
data.resources = g_newa (CUgraphicsResource, data.num_resources);
for (i = 0; i < data.num_resources; i++) {
mem = gst_buffer_get_memory (output_buffer, i);
data.resources[i] = ensure_cuda_graphics_resource (mem, nvdec);
GST_MINI_OBJECT_FLAG_SET (mem, GST_GL_BASE_MEMORY_TRANSFER_NEED_DOWNLOAD);
gst_memory_unref (mem);
}
gst_gl_context_thread_add (nvdec->gl_context,
(GstGLContextThreadFunc) copy_video_frame_to_gl_textures, &data);
return data.ret;
}
#endif
static gboolean
gst_nvdec_copy_device_to_system (GstNvDec * nvdec,
CUVIDPARSERDISPINFO * dispinfo, GstBuffer * output_buffer)
{
CUVIDPROCPARAMS params = { 0, };
CUDA_MEMCPY2D copy_params = { 0, };
guintptr dptr;
guint pitch;
GstVideoFrame video_frame;
GstVideoInfo *info = &nvdec->output_state->info;
gint i;
if (!cuda_OK (CuvidCtxLock (nvdec->ctx_lock, 0))) {
GST_WARNING_OBJECT (nvdec, "failed to lock CUDA context");
return FALSE;
}
if (!gst_video_frame_map (&video_frame, info, output_buffer, GST_MAP_WRITE)) {
GST_ERROR_OBJECT (nvdec, "frame map failure");
CuvidCtxUnlock (nvdec->ctx_lock, 0);
return FALSE;
}
params.progressive_frame = dispinfo->progressive_frame;
params.second_field = dispinfo->repeat_first_field + 1;
params.top_field_first = dispinfo->top_field_first;
params.unpaired_field = dispinfo->repeat_first_field < 0;
if (!cuda_OK (CuvidMapVideoFrame (nvdec->decoder,
dispinfo->picture_index, &dptr, &pitch, &params))) {
GST_ERROR_OBJECT (nvdec, "failed to map video frame");
CuvidCtxUnlock (nvdec->ctx_lock, 0);
return FALSE;
}
copy_params.srcMemoryType = CU_MEMORYTYPE_DEVICE;
copy_params.srcPitch = pitch;
copy_params.dstMemoryType = CU_MEMORYTYPE_HOST;
copy_params.WidthInBytes = GST_VIDEO_INFO_COMP_WIDTH (info, 0)
* GST_VIDEO_INFO_COMP_PSTRIDE (info, 0);
for (i = 0; i < GST_VIDEO_FRAME_N_PLANES (&video_frame); i++) {
copy_params.srcDevice = dptr + (i * pitch * nvdec->height);
copy_params.dstHost = GST_VIDEO_FRAME_PLANE_DATA (&video_frame, i);
copy_params.dstPitch = GST_VIDEO_FRAME_PLANE_STRIDE (&video_frame, i);
copy_params.Height = GST_VIDEO_FRAME_COMP_HEIGHT (&video_frame, i);
if (!cuda_OK (CuMemcpy2DAsync (&copy_params, 0))) {
GST_ERROR_OBJECT (nvdec, "failed to copy %dth plane", i);
CuvidUnmapVideoFrame (nvdec->decoder, dptr);
gst_video_frame_unmap (&video_frame);
CuvidCtxUnlock (nvdec->ctx_lock, 0);
return FALSE;
}
}
CuStreamSynchronize (0);
gst_video_frame_unmap (&video_frame);
if (!cuda_OK (CuvidUnmapVideoFrame (nvdec->decoder, dptr)))
GST_WARNING_OBJECT (nvdec, "failed to unmap video frame");
if (!cuda_OK (CuvidCtxUnlock (nvdec->ctx_lock, 0)))
GST_WARNING_OBJECT (nvdec, "failed to unlock CUDA context");
return TRUE;
}
static GstFlowReturn
gst_nvdec_handle_frame (GstVideoDecoder * decoder, GstVideoCodecFrame * frame)
{
GstNvDec *nvdec = GST_NVDEC (decoder);
GstMapInfo map_info = GST_MAP_INFO_INIT;
CUVIDSOURCEDATAPACKET packet = { 0, };
GST_LOG_OBJECT (nvdec, "handle frame");
if (nvdec->last_ret != GST_FLOW_OK) {
GST_DEBUG_OBJECT (nvdec,
"return last flow %s", gst_flow_get_name (nvdec->last_ret));
gst_video_codec_frame_unref (frame);
return nvdec->last_ret;
}
/* initialize with zero to keep track of frames */
gst_video_codec_frame_set_user_data (frame, GUINT_TO_POINTER (0), NULL);
if (!gst_buffer_map (frame->input_buffer, &map_info, GST_MAP_READ)) {
GST_ERROR_OBJECT (nvdec, "failed to map input buffer");
gst_video_codec_frame_unref (frame);
return GST_FLOW_ERROR;
}
packet.payload_size = (gulong) map_info.size;
packet.payload = map_info.data;
packet.timestamp = frame->pts;
packet.flags = CUVID_PKT_TIMESTAMP;
if (GST_BUFFER_IS_DISCONT (frame->input_buffer))
packet.flags |= CUVID_PKT_DISCONTINUITY;
nvdec->state = GST_NVDEC_STATE_PARSE;
if (!cuda_OK (CuvidParseVideoData (nvdec->parser, &packet)))
GST_WARNING_OBJECT (nvdec, "parser failed");
gst_buffer_unmap (frame->input_buffer, &map_info);
gst_video_codec_frame_unref (frame);
return nvdec->last_ret;
}
static gboolean
gst_nvdec_flush (GstVideoDecoder * decoder)
{
GstNvDec *nvdec = GST_NVDEC (decoder);
CUVIDSOURCEDATAPACKET packet = { 0, };
GST_DEBUG_OBJECT (nvdec, "flush");
packet.payload_size = 0;
packet.payload = NULL;
packet.flags = CUVID_PKT_ENDOFSTREAM;
nvdec->state = GST_NVDEC_STATE_PARSE;
if (nvdec->parser && !cuda_OK (CuvidParseVideoData (nvdec->parser, &packet)))
GST_WARNING_OBJECT (nvdec, "parser failed");
return TRUE;
}
static GstFlowReturn
gst_nvdec_drain (GstVideoDecoder * decoder)
{
GstNvDec *nvdec = GST_NVDEC (decoder);
CUVIDSOURCEDATAPACKET packet = { 0, };
GST_DEBUG_OBJECT (nvdec, "draining decoder");
packet.payload_size = 0;
packet.payload = NULL;
packet.flags = CUVID_PKT_ENDOFSTREAM;
if (nvdec->parser && !cuda_OK (CuvidParseVideoData (nvdec->parser, &packet)))
GST_WARNING_OBJECT (nvdec, "parser failed");
return nvdec->last_ret;
}
static GstFlowReturn
gst_nvdec_finish (GstVideoDecoder * decoder)
{
GST_DEBUG_OBJECT (decoder, "finish");
return gst_nvdec_drain (decoder);
}
static gboolean
gst_nvdec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
{
#ifdef HAVE_NVCODEC_GST_GL
GstNvDec *nvdec = GST_NVDEC (decoder);
GstCaps *outcaps;
GstBufferPool *pool = NULL;
guint n, size, min, max;
GstVideoInfo vinfo = { 0, };
GstStructure *config;
GST_DEBUG_OBJECT (nvdec, "decide allocation");
if (nvdec->mem_type == GST_NVDEC_MEM_TYPE_SYSTEM)
return GST_VIDEO_DECODER_CLASS (gst_nvdec_parent_class)->decide_allocation
(decoder, query);
if (!gst_gl_query_local_gl_context (GST_ELEMENT (decoder), GST_PAD_SRC,
&nvdec->gl_context)) {
GST_INFO_OBJECT (nvdec, "failed to query local OpenGL context");
if (nvdec->gl_context)
gst_object_unref (nvdec->gl_context);
nvdec->gl_context =
gst_gl_display_get_gl_context_for_thread (nvdec->gl_display, NULL);
if (!nvdec->gl_context
|| !gst_gl_display_add_context (nvdec->gl_display, nvdec->gl_context)) {
if (nvdec->gl_context)
gst_object_unref (nvdec->gl_context);
if (!gst_gl_display_create_context (nvdec->gl_display,
nvdec->other_gl_context, &nvdec->gl_context, NULL)) {
GST_ERROR_OBJECT (nvdec, "failed to create OpenGL context");
return FALSE;
}
if (!gst_gl_display_add_context (nvdec->gl_display, nvdec->gl_context)) {
GST_ERROR_OBJECT (nvdec,
"failed to add the OpenGL context to the display");
return FALSE;
}
}
}
gst_query_parse_allocation (query, &outcaps, NULL);
n = gst_query_get_n_allocation_pools (query);
if (n > 0) {
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
if (!GST_IS_GL_BUFFER_POOL (pool)) {
gst_object_unref (pool);
pool = NULL;
}
}
if (!pool) {
pool = gst_gl_buffer_pool_new (nvdec->gl_context);
if (outcaps)
gst_video_info_from_caps (&vinfo, outcaps);
size = (guint) vinfo.size;
min = max = 0;
}
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, outcaps, size, min, max);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
gst_buffer_pool_set_config (pool, config);
if (n > 0)
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
else
gst_query_add_allocation_pool (query, pool, size, min, max);
gst_object_unref (pool);
#endif
return GST_VIDEO_DECODER_CLASS (gst_nvdec_parent_class)->decide_allocation
(decoder, query);
}
static gboolean
gst_nvdec_src_query (GstVideoDecoder * decoder, GstQuery * query)
{
#ifdef HAVE_NVCODEC_GST_GL
GstNvDec *nvdec = GST_NVDEC (decoder);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
if (gst_gl_handle_context_query (GST_ELEMENT (decoder), query,
nvdec->gl_display, nvdec->gl_context, nvdec->other_gl_context))
return TRUE;
break;
default:
break;
}
#endif
return GST_VIDEO_DECODER_CLASS (gst_nvdec_parent_class)->src_query (decoder,
query);
}
static void
gst_nvdec_set_context (GstElement * element, GstContext * context)
{
GstNvDec *nvdec = GST_NVDEC (element);
GST_DEBUG_OBJECT (nvdec, "set context");
#ifdef HAVE_NVCODEC_GST_GL
gst_gl_handle_set_context (element, context, &nvdec->gl_display,
&nvdec->other_gl_context);
#endif
GST_ELEMENT_CLASS (gst_nvdec_parent_class)->set_context (element, context);
}
typedef struct
{
GstCaps *sink_caps;
GstCaps *src_caps;
cudaVideoCodec codec_type;
gchar *codec;
guint cuda_device_id;
gboolean is_default;
} GstNvDecClassData;
static void
gst_nvdec_subclass_init (gpointer g_class, gpointer data)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
GstNvDecClass *nvdec_class = GST_NVDEC_CLASS (g_class);
GstNvDecClassData *cdata = data;
gchar *long_name;
if (cdata->is_default) {
long_name = g_strdup_printf ("NVDEC %s Video Decoder", cdata->codec);
} else {
long_name = g_strdup_printf ("NVDEC %s Video Decoder with devide-id %d",
cdata->codec, cdata->cuda_device_id);
}
gst_element_class_set_metadata (element_class, long_name,
"Codec/Decoder/Video/Hardware", "NVDEC video decoder",
"Ericsson AB, http://www.ericsson.com, "
"Seungha Yang <seungha.yang@navercorp.com>");
g_free (long_name);
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
cdata->sink_caps));
gst_element_class_add_pad_template (element_class,
gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
cdata->src_caps));
nvdec_class->codec_type = cdata->codec_type;
nvdec_class->cuda_device_id = cdata->cuda_device_id;
gst_caps_unref (cdata->sink_caps);
gst_caps_unref (cdata->src_caps);
g_free (cdata->codec);
g_free (cdata);
}
static void
gst_nvdec_subclass_register (GstPlugin * plugin, GType type,
cudaVideoCodec codec_type, const gchar * codec, guint device_id, guint rank,
GstCaps * sink_caps, GstCaps * src_caps)
{
GTypeQuery type_query;
GTypeInfo type_info = { 0, };
GType subtype;
gchar *type_name;
GstNvDecClassData *cdata;
gboolean is_default = TRUE;
cdata = g_new0 (GstNvDecClassData, 1);
cdata->sink_caps = gst_caps_ref (sink_caps);
cdata->src_caps = gst_caps_ref (src_caps);
cdata->codec_type = codec_type;
cdata->codec = g_strdup (codec);
cdata->cuda_device_id = device_id;
g_type_query (type, &type_query);
memset (&type_info, 0, sizeof (type_info));
type_info.class_size = type_query.class_size;
type_info.instance_size = type_query.instance_size;
type_info.class_init = gst_nvdec_subclass_init;
type_info.class_data = cdata;
type_name = g_strdup_printf ("nv%sdec", codec);
if (g_type_from_name (type_name) != 0) {
g_free (type_name);
type_name = g_strdup_printf ("nv%sdevice%ddec", codec, device_id);
is_default = FALSE;
}
cdata->is_default = is_default;
subtype = g_type_register_static (type, type_name, &type_info, 0);
/* make lower rank than default device */
if (rank > 0 && !is_default)
rank--;
if (!gst_element_register (plugin, type_name, rank, subtype))
GST_WARNING ("Failed to register plugin '%s'", type_name);
g_free (type_name);
}
static gboolean
gst_nvdec_get_supported_codec_profiles (GValue * profiles,
cudaVideoCodec codec_type, guint max_bitdepth_minus8)
{
GValue val = G_VALUE_INIT;
gboolean ret = FALSE;
g_value_init (&val, G_TYPE_STRING);
switch (codec_type) {
case cudaVideoCodec_H264:
g_value_set_static_string (&val, "constrained-baseline");
gst_value_list_append_value (profiles, &val);
g_value_set_static_string (&val, "baseline");
gst_value_list_append_value (profiles, &val);
g_value_set_static_string (&val, "main");
gst_value_list_append_value (profiles, &val);
g_value_set_static_string (&val, "high");
gst_value_list_append_value (profiles, &val);
if (max_bitdepth_minus8 >= 2) {
g_value_set_static_string (&val, "high-10");
gst_value_list_append_value (profiles, &val);
}
ret = TRUE;
break;
case cudaVideoCodec_HEVC:
g_value_set_static_string (&val, "main");
gst_value_list_append_value (profiles, &val);
if (max_bitdepth_minus8 >= 2) {
g_value_set_static_string (&val, "main-10");
gst_value_list_append_value (profiles, &val);
}
ret = TRUE;
break;
default:
break;
}
g_value_unset (&val);
return ret;
}
typedef struct
{
guint idx;
cudaVideoChromaFormat format;
} GstNvdecChromaMap;
static void
gst_nvdec_register (GstPlugin * plugin, GType type, cudaVideoCodec codec_type,
const gchar * codec, const gchar * sink_caps_string, guint rank,
gint device_count)
{
gint i;
for (i = 0; i < device_count; i++) {
CUdevice cuda_device;
CUcontext cuda_ctx;
CUresult cuda_ret;
gint max_width = 0, min_width = G_MAXINT;
gint max_height = 0, min_height = G_MAXINT;
GstCaps *sink_templ = NULL;
GstCaps *src_templ = NULL;
/* FIXME: support 12bits format */
guint bitdepth_minus8[2] = { 0, 2 };
guint max_bitdepth_minus8 = 0;
gint c_idx, b_idx;
guint num_support = 0;
cudaVideoChromaFormat chroma_list[] = {
#if 0
/* FIXME: support monochrome */
cudaVideoChromaFormat_Monochrome,
/* FIXME: Can our OpenGL support NV16 and its 10/12bits variant?? */
cudaVideoChromaFormat_422,
cudaVideoChromaFormat_444,
#endif
cudaVideoChromaFormat_420,
};
GValue format_list = G_VALUE_INIT;
GValue format = G_VALUE_INIT;
GValue profile_list = G_VALUE_INIT;
if (CuDeviceGet (&cuda_device, i) != CUDA_SUCCESS)
continue;
if (CuCtxCreate (&cuda_ctx, 0, cuda_device) != CUDA_SUCCESS)
continue;
g_value_init (&format_list, GST_TYPE_LIST);
g_value_init (&format, G_TYPE_STRING);
g_value_init (&profile_list, GST_TYPE_LIST);
if (CuCtxPushCurrent (cuda_ctx) != CUDA_SUCCESS)
goto cuda_free;
for (c_idx = 0; c_idx < G_N_ELEMENTS (chroma_list); c_idx++) {
for (b_idx = 0; b_idx < G_N_ELEMENTS (bitdepth_minus8); b_idx++) {
CUVIDDECODECAPS decoder_caps = { 0, };
decoder_caps.eCodecType = codec_type;
decoder_caps.eChromaFormat = chroma_list[c_idx];
decoder_caps.nBitDepthMinus8 = bitdepth_minus8[b_idx];
cuda_ret = CuvidGetDecoderCaps (&decoder_caps);
if (cuda_ret != CUDA_SUCCESS) {
GST_INFO ("could not query %s decoder capability, ret %d",
codec, cuda_ret);
continue;
} else if (!decoder_caps.bIsSupported) {
GST_LOG ("%s bit-depth %d with chroma format %d is not supported",
codec, bitdepth_minus8[b_idx] + 8, c_idx);
continue;
}
if (min_width > decoder_caps.nMinWidth)
min_width = decoder_caps.nMinWidth;
if (min_height > decoder_caps.nMinHeight)
min_height = decoder_caps.nMinHeight;
if (max_width < decoder_caps.nMaxWidth)
max_width = decoder_caps.nMaxWidth;
if (max_height < decoder_caps.nMaxHeight)
max_height = decoder_caps.nMaxHeight;
max_bitdepth_minus8 = bitdepth_minus8[b_idx];
GST_INFO ("%s bit-depth %d with chroma format %d [%d - %d] x [%d - %d]",
codec, bitdepth_minus8[b_idx] + 8, c_idx, min_width, max_width,
min_height, max_height);
switch (chroma_list[c_idx]) {
case cudaVideoChromaFormat_420:
if (b_idx == 0) {
g_value_set_string (&format, "NV12");
} else if (b_idx == 1) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
g_value_set_string (&format, "P010_10LE");
#else
g_value_set_string (&format, "P010_10BE");
#endif
} else {
/* unknown bit-depth */
break;
}
num_support++;
gst_value_list_append_value (&format_list, &format);
break;
default:
break;
}
}
}
if (num_support == 0) {
GST_INFO ("device can not support %s", codec);
goto cuda_free;
}
src_templ = gst_caps_new_simple ("video/x-raw",
"width", GST_TYPE_INT_RANGE, min_width, max_width,
"height", GST_TYPE_INT_RANGE, min_height, max_height,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
gst_caps_set_value (src_templ, "format", &format_list);
/* OpenGL specific */
#if HAVE_NVCODEC_GST_GL
{
GstCaps *gl_caps = gst_caps_copy (src_templ);
gst_caps_set_features_simple (gl_caps,
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_GL_MEMORY));
gst_caps_set_simple (gl_caps,
"texture-target", G_TYPE_STRING, "2D", NULL);
gst_caps_append (src_templ, gl_caps);
}
#endif
sink_templ = gst_caps_from_string (sink_caps_string);
gst_caps_set_simple (sink_templ,
"width", GST_TYPE_INT_RANGE, min_width, max_width,
"height", GST_TYPE_INT_RANGE, min_height, max_height, NULL);
if (gst_nvdec_get_supported_codec_profiles (&profile_list, codec_type,
max_bitdepth_minus8)) {
gst_caps_set_value (sink_templ, "profile", &profile_list);
}
GST_DEBUG ("sink template caps %" GST_PTR_FORMAT, sink_templ);
GST_DEBUG ("src template caps %" GST_PTR_FORMAT, src_templ);
CuCtxPopCurrent (NULL);
cuda_free:
CuCtxDestroy (cuda_ctx);
g_value_unset (&format_list);
g_value_unset (&format);
g_value_unset (&profile_list);
if (sink_templ && src_templ) {
gst_nvdec_subclass_register (plugin, type, codec_type, codec, i, rank,
sink_templ, src_templ);
}
gst_clear_caps (&sink_templ);
gst_clear_caps (&src_templ);
}
}
typedef struct
{
cudaVideoCodec codec;
const gchar *codec_name;
const gchar *sink_caps_string;
} GstNvCodecMap;
const GstNvCodecMap codec_map[] = {
{cudaVideoCodec_MPEG1, "mpegvideo",
"video/mpeg, mpegversion = (int) 1, systemstream = (boolean) false"},
{cudaVideoCodec_MPEG2, "mpeg2video",
"video/mpeg, mpegversion = (int) 2, systemstream = (boolean) false"},
{cudaVideoCodec_MPEG4, "mpeg4video",
"video/mpeg, mpegversion = (int) 4, systemstream = (boolean) false"},
#if 0
/* FIXME: need verification */
{cudaVideoCodec_VC1, "vc1"},
#endif
/* NOTE: common supported h264 profiles for all GPU architecture
* 4:2:0, baseline, main, and high profiles
*/
{cudaVideoCodec_H264, "h264",
"video/x-h264, stream-format = (string) byte-stream"
", alignment = (string) au"
", profile = (string) { constrained-baseline, baseline, main, high }"},
{cudaVideoCodec_JPEG, "jpeg", "image/jpeg"},
#if 0
/* FIXME: need verification */
{cudaVideoCodec_H264_SVC, "h264svc"},
{cudaVideoCodec_H264_MVC, "h264mvc"},
#endif
{cudaVideoCodec_HEVC, "h265",
"video/x-h265, stream-format = (string) byte-stream"
", alignment = (string) au, profile = (string) { main }"},
{cudaVideoCodec_VP8, "vp8", "video/x-vp8"},
{cudaVideoCodec_VP9, "vp9", "video/x-vp9"}
};
void
gst_nvdec_plugin_init (GstPlugin * plugin)
{
gint i;
CUresult cuda_ret;
gint dev_count = 0;
GST_DEBUG_CATEGORY_INIT (gst_nvdec_debug_category, "nvdec", 0,
"Debug category for the nvdec element");
if (!gst_cuvid_can_get_decoder_caps ()) {
GstCaps *src_templ;
GST_INFO ("Too old nvidia driver to query decoder capability");
src_templ = gst_caps_from_string (GST_VIDEO_CAPS_MAKE ("NV12"));
#if HAVE_NVCODEC_GST_GL
{
GstCaps *gl_caps = gst_caps_copy (src_templ);
gst_caps_set_features_simple (gl_caps,
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_GL_MEMORY));
gst_caps_set_simple (gl_caps,
"texture-target", G_TYPE_STRING, "2D", NULL);
gst_caps_append (src_templ, gl_caps);
}
#endif
for (i = 0; i < G_N_ELEMENTS (codec_map); i++) {
GstCaps *sink_templ;
sink_templ = gst_caps_from_string (codec_map[i].sink_caps_string);
gst_nvdec_subclass_register (plugin, GST_TYPE_NVDEC, codec_map[i].codec,
codec_map[i].codec_name, 0, GST_RANK_PRIMARY, sink_templ, src_templ);
}
return;
}
cuda_ret = CuInit (0);
if (cuda_ret != CUDA_SUCCESS) {
GST_ERROR ("Failed to initialize CUDA API");
return;
}
cuda_ret = CuDeviceGetCount (&dev_count);
if (cuda_ret != CUDA_SUCCESS || dev_count == 0) {
GST_ERROR ("No CUDA devices detected");
return;
}
for (i = 0; i < G_N_ELEMENTS (codec_map); i++) {
gst_nvdec_register (plugin, GST_TYPE_NVDEC, codec_map[i].codec,
codec_map[i].codec_name, codec_map[i].sink_caps_string,
GST_RANK_PRIMARY, dev_count);
}
}
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