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gstreamer/sys/nvcodec/gstnvdec.c
Seungha Yang 14b9a1cffd nvdec: Add support for mpeg4 video decoding with codec_data 
Decoder should handle codec_data of mpeg4 video which includes essential
config data.
2019-09-11 14:00:48 +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"
#include "gstcudautils.h"
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (gst_nvdec_debug_category);
#define GST_CAT_DEFAULT gst_nvdec_debug_category
#ifdef HAVE_NVCODEC_GST_GL
#define SUPPORTED_GL_APIS (GST_GL_API_OPENGL | GST_GL_API_OPENGL3 | GST_GL_API_GLES2)
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);
#ifdef HAVE_NVCODEC_GST_GL
typedef struct _GstNvDecRegisterResourceData
{
GstMemory *mem;
GstCudaGraphicsResource *resource;
GstNvDec *nvdec;
gboolean ret;
} GstNvDecRegisterResourceData;
static void
register_cuda_resource (GstGLContext * context,
GstNvDecRegisterResourceData * data)
{
GstMemory *mem = data->mem;
GstCudaGraphicsResource *resource = data->resource;
GstNvDec *nvdec = data->nvdec;
GstMapInfo map_info = GST_MAP_INFO_INIT;
GstGLBuffer *gl_buf_obj;
data->ret = FALSE;
if (!gst_cuda_context_push (nvdec->cuda_ctx)) {
GST_WARNING_OBJECT (nvdec, "failed to push CUDA context");
return;
}
if (gst_memory_map (mem, &map_info, GST_MAP_READ | GST_MAP_GL)) {
GstGLMemoryPBO *gl_mem = (GstGLMemoryPBO *) data->mem;
gl_buf_obj = gl_mem->pbo;
GST_LOG_OBJECT (nvdec,
"register glbuffer %d to CUDA resource", gl_buf_obj->id);
/* register resource without read/write only flags, since
* downstream CUDA elements (e.g., nvenc) might want to access
* this resource later. Instead, use map flags during map/unmap */
if (gst_cuda_graphics_resource_register_gl_buffer (resource,
gl_buf_obj->id, CU_GRAPHICS_REGISTER_FLAGS_NONE)) {
data->ret = TRUE;
} else {
GST_WARNING_OBJECT (nvdec, "failed to register memory");
}
gst_memory_unmap (mem, &map_info);
} else {
GST_WARNING_OBJECT (nvdec, "failed to map memory");
}
if (!gst_cuda_context_pop (NULL))
GST_WARNING_OBJECT (nvdec, "failed to unlock CUDA context");
}
static GstCudaGraphicsResource *
ensure_cuda_graphics_resource (GstMemory * mem, GstNvDec * nvdec)
{
GQuark quark;
GstCudaGraphicsResource *cgr_info;
GstNvDecRegisterResourceData data;
if (!gst_is_gl_memory_pbo (mem)) {
GST_WARNING_OBJECT (nvdec, "memory is not GL PBO memory, %s",
mem->allocator->mem_type);
return NULL;
}
quark = gst_cuda_quark_from_id (GST_CUDA_QUARK_GRAPHICS_RESOURCE);
cgr_info = gst_mini_object_get_qdata (GST_MINI_OBJECT (mem), quark);
if (!cgr_info) {
cgr_info = gst_cuda_graphics_resource_new (nvdec->cuda_ctx,
GST_OBJECT (GST_GL_BASE_MEMORY_CAST (mem)->context),
GST_CUDA_GRAPHICS_RESOURCE_GL_BUFFER);
data.mem = mem;
data.resource = cgr_info;
data.nvdec = nvdec;
gst_gl_context_thread_add ((GstGLContext *) cgr_info->graphics_context,
(GstGLContextThreadFunc) register_cuda_resource, &data);
if (!data.ret) {
GST_WARNING_OBJECT (nvdec, "could not register resource");
gst_cuda_graphics_resource_free (cgr_info);
return NULL;
}
gst_mini_object_set_qdata (GST_MINI_OBJECT (mem), quark, cgr_info,
(GDestroyNotify) gst_cuda_graphics_resource_free);
}
return cgr_info;
}
#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_close (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);
static gboolean gst_nvdec_negotiate (GstVideoDecoder * decoder);
#ifdef HAVE_NVCODEC_GST_GL
static gboolean gst_nvdec_ensure_gl_context (GstNvDec * nvdec);
#endif
#define gst_nvdec_parent_class parent_class
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->close = GST_DEBUG_FUNCPTR (gst_nvdec_close);
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);
video_decoder_class->negotiate = GST_DEBUG_FUNCPTR (gst_nvdec_negotiate);
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 cudaVideoSurfaceFormat
get_cuda_surface_format_from_gst (GstVideoFormat format)
{
switch (format) {
case GST_VIDEO_FORMAT_NV12:
return cudaVideoSurfaceFormat_NV12;
case GST_VIDEO_FORMAT_P010_10LE:
case GST_VIDEO_FORMAT_P010_10BE:
case GST_VIDEO_FORMAT_P016_LE:
case GST_VIDEO_FORMAT_P016_BE:
return cudaVideoSurfaceFormat_P016;
case GST_VIDEO_FORMAT_Y444:
return cudaVideoSurfaceFormat_YUV444;
case GST_VIDEO_FORMAT_Y444_16LE:
case GST_VIDEO_FORMAT_Y444_16BE:
return cudaVideoSurfaceFormat_YUV444_16Bit;
default:
g_assert_not_reached ();
break;
}
return cudaVideoSurfaceFormat_NV12;
}
static gboolean
parser_sequence_callback (GstNvDec * nvdec, CUVIDEOFORMAT * format)
{
guint width, height;
CUVIDDECODECREATEINFO create_info = { 0, };
GstVideoFormat out_format;
GstVideoInfo *in_info = &nvdec->input_state->info;
GstVideoInfo *out_info = &nvdec->out_info;
GstVideoInfo prev_out_info = *out_info;
GstCudaContext *ctx = nvdec->cuda_ctx;
GstStructure *in_s = NULL;
gboolean updata = FALSE;
width = format->display_area.right - format->display_area.left;
height = format->display_area.bottom - format->display_area.top;
switch (format->chroma_format) {
case cudaVideoChromaFormat_444:
if (format->bit_depth_luma_minus8 == 0) {
out_format = GST_VIDEO_FORMAT_Y444;
} else if (format->bit_depth_luma_minus8 == 2 ||
format->bit_depth_luma_minus8 == 4) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
out_format = GST_VIDEO_FORMAT_Y444_16LE;
#else
out_format = GST_VIDEO_FORMAT_Y444_16BE;
#endif
} else {
GST_ERROR_OBJECT (nvdec, "Unknown 4:4:4 format bitdepth %d",
format->bit_depth_luma_minus8 + 8);
nvdec->last_ret = GST_FLOW_NOT_NEGOTIATED;
return FALSE;
}
break;
case cudaVideoChromaFormat_420:
if (format->bit_depth_luma_minus8 == 0) {
out_format = GST_VIDEO_FORMAT_NV12;
} else if (format->bit_depth_luma_minus8 == 2) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
out_format = GST_VIDEO_FORMAT_P010_10LE;
#else
out_format = GST_VIDEO_FORMAT_P010_10BE;
#endif
} else if (format->bit_depth_luma_minus8 == 4) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
out_format = GST_VIDEO_FORMAT_P016_LE;
#else
out_format = GST_VIDEO_FORMAT_P016_BE;
#endif
} else {
GST_ERROR_OBJECT (nvdec, "Unknown 4:2:0 format bitdepth %d",
format->bit_depth_luma_minus8 + 8);
nvdec->last_ret = GST_FLOW_NOT_NEGOTIATED;
return FALSE;
}
break;
default:
GST_ERROR_OBJECT (nvdec, "unhandled chroma format %d, bitdepth %d",
format->chroma_format, format->bit_depth_luma_minus8 + 8);
nvdec->last_ret = GST_FLOW_NOT_NEGOTIATED;
return FALSE;
}
GST_DEBUG_OBJECT (nvdec,
"out format: %s", gst_video_format_to_string (out_format));
GST_DEBUG_OBJECT (nvdec, "width: %u, height: %u", width, height);
gst_video_info_set_format (out_info, out_format, width, height);
GST_VIDEO_INFO_FPS_N (out_info) = GST_VIDEO_INFO_FPS_N (in_info);
GST_VIDEO_INFO_FPS_D (out_info) = GST_VIDEO_INFO_FPS_D (in_info);
if (GST_VIDEO_INFO_FPS_N (out_info) < 1 ||
GST_VIDEO_INFO_FPS_D (out_info) < 1) {
GST_VIDEO_INFO_FPS_N (out_info) = format->frame_rate.numerator;
GST_VIDEO_INFO_FPS_D (out_info) = MAX (1, format->frame_rate.denominator);
}
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");
out_info->colorimetry = colorimetry;
}
} else {
out_info->colorimetry = in_info->colorimetry;
}
if (format->progressive_sequence) {
out_info->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) {
out_info->interlace_mode = in_info->interlace_mode;
}
} else {
out_info->interlace_mode = GST_VIDEO_INTERLACE_MODE_MIXED;
}
if (!nvdec->decoder || !gst_video_info_is_equal (out_info, &prev_out_info)) {
updata = TRUE;
if (!gst_cuda_context_push (ctx)) {
GST_ERROR_OBJECT (nvdec, "failed to lock CUDA context");
goto error;
}
if (nvdec->decoder) {
GST_DEBUG_OBJECT (nvdec, "destroying decoder");
if (!gst_cuda_result (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 = get_cuda_surface_format_from_gst (out_format);
create_info.bitDepthMinus8 = format->bit_depth_luma_minus8;
create_info.DeinterlaceMode = cudaVideoDeinterlaceMode_Weave;
create_info.ulTargetWidth = width;
create_info.ulTargetHeight = height;
create_info.ulNumOutputSurfaces = 1;
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
|| !gst_cuda_result (CuvidCreateDecoder (&nvdec->decoder,
&create_info))) {
GST_ERROR_OBJECT (nvdec, "failed to create decoder");
goto error;
}
if (!gst_cuda_context_pop (NULL)) {
GST_ERROR_OBJECT (nvdec, "failed to unlock CUDA context");
goto error;
}
}
if (!gst_pad_has_current_caps (GST_VIDEO_DECODER_SRC_PAD (nvdec)) || updata) {
if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (nvdec))) {
nvdec->last_ret = GST_FLOW_NOT_NEGOTIATED;
return FALSE;
}
}
return TRUE;
error:
nvdec->last_ret = GST_FLOW_ERROR;
return FALSE;
}
static gboolean
gst_nvdec_negotiate (GstVideoDecoder * decoder)
{
GstNvDec *nvdec = GST_NVDEC (decoder);
GstVideoCodecState *state;
GstVideoInfo *vinfo;
GstVideoInfo *out_info = &nvdec->out_info;
gboolean ret;
GST_DEBUG_OBJECT (nvdec, "negotiate");
state = gst_video_decoder_set_output_state (GST_VIDEO_DECODER (nvdec),
GST_VIDEO_INFO_FORMAT (out_info), GST_VIDEO_INFO_WIDTH (out_info),
GST_VIDEO_INFO_HEIGHT (out_info), nvdec->input_state);
vinfo = &state->info;
/* update output info with CUvidparser provided one */
vinfo->interlace_mode = out_info->interlace_mode;
vinfo->fps_n = out_info->fps_n;
vinfo->fps_d = out_info->fps_d;
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_nvdec_ensure_gl_context (nvdec)) {
GST_WARNING_OBJECT (nvdec,
"OpenGL context cannot support PBO memory, fallback to system memory");
nvdec->mem_type = GST_NVDEC_MEM_TYPE_SYSTEM;
}
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;
ret = GST_VIDEO_DECODER_CLASS (parent_class)->negotiate (decoder);
if (!ret) {
GST_ERROR_OBJECT (nvdec, "failed to negotiate with downstream");
nvdec->last_ret = GST_FLOW_NOT_NEGOTIATED;
}
return ret;
}
static gboolean
parser_decode_callback (GstNvDec * nvdec, CUVIDPICPARAMS * params)
{
GList *iter, *pending_frames;
GstCudaContext *ctx = nvdec->cuda_ctx;
GST_LOG_OBJECT (nvdec, "picture index: %u", params->CurrPicIdx);
if (!gst_cuda_context_push (ctx)) {
GST_ERROR_OBJECT (nvdec, "failed to lock CUDA context");
goto error;
}
if (!gst_cuda_result (CuvidDecodePicture (nvdec->decoder, params))) {
GST_ERROR_OBJECT (nvdec, "failed to decode picture");
goto error;
}
if (!gst_cuda_context_pop (NULL)) {
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,
GST_VIDEO_INFO_FPS_D (&nvdec->out_info),
GST_VIDEO_INFO_FPS_N (&nvdec->out_info));
} 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)));
}
}
#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);
CUresult cuda_ret;
GST_DEBUG_OBJECT (nvdec, "creating CUDA context");
if (!gst_cuda_ensure_element_context (GST_ELEMENT_CAST (decoder),
klass->cuda_device_id, &nvdec->cuda_ctx)) {
GST_ERROR_OBJECT (nvdec, "failed to create CUDA context");
return FALSE;
}
if (gst_cuda_context_push (nvdec->cuda_ctx)) {
cuda_ret = CuStreamCreate (&nvdec->cuda_stream, CU_STREAM_DEFAULT);
if (!gst_cuda_result (cuda_ret)) {
GST_WARNING_OBJECT (nvdec,
"Could not create CUDA stream, will use default stream");
nvdec->cuda_stream = NULL;
}
gst_cuda_context_pop (NULL);
}
#if HAVE_NVCODEC_GST_GL
gst_gl_ensure_element_data (GST_ELEMENT (nvdec),
&nvdec->gl_display, &nvdec->other_gl_context);
if (nvdec->gl_display)
gst_gl_display_filter_gl_api (GST_GL_DISPLAY (nvdec->gl_display),
SUPPORTED_GL_APIS);
#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;
gst_video_info_init (&nvdec->out_info);
return TRUE;
}
static gboolean
maybe_destroy_decoder_and_parser (GstNvDec * nvdec)
{
gboolean ret = TRUE;
if (!gst_cuda_context_push (nvdec->cuda_ctx)) {
GST_ERROR_OBJECT (nvdec, "failed to lock CUDA context");
return FALSE;
}
if (nvdec->decoder) {
GST_DEBUG_OBJECT (nvdec, "destroying decoder");
ret = gst_cuda_result (CuvidDestroyDecoder (nvdec->decoder));
nvdec->decoder = NULL;
if (!ret)
GST_ERROR_OBJECT (nvdec, "failed to destroy decoder");
}
if (nvdec->parser) {
GST_DEBUG_OBJECT (nvdec, "destroying parser");
if (!gst_cuda_result (CuvidDestroyVideoParser (nvdec->parser))) {
GST_ERROR_OBJECT (nvdec, "failed to destroy parser");
ret = FALSE;
}
nvdec->parser = NULL;
}
if (!gst_cuda_context_pop (NULL)) {
GST_WARNING_OBJECT (nvdec, "failed to pop CUDA context");
}
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;
}
gst_clear_buffer (&nvdec->codec_data);
return TRUE;
}
static gboolean
gst_nvdec_close (GstVideoDecoder * decoder)
{
GstNvDec *nvdec = GST_NVDEC (decoder);
if (nvdec->cuda_ctx && nvdec->cuda_stream) {
if (gst_cuda_context_push (nvdec->cuda_ctx)) {
gst_cuda_result (CuStreamDestroy (nvdec->cuda_stream));
gst_cuda_context_pop (NULL);
}
}
gst_clear_object (&nvdec->cuda_ctx);
nvdec->cuda_stream = 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, };
gboolean ret = TRUE;
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_cuda_context_push (nvdec->cuda_ctx);
GST_DEBUG_OBJECT (nvdec, "creating parser");
if (!gst_cuda_result (CuvidCreateVideoParser (&nvdec->parser,
&parser_params))) {
GST_ERROR_OBJECT (nvdec, "failed to create parser");
ret = FALSE;
}
gst_cuda_context_pop (NULL);
/* store codec data */
if (ret && nvdec->input_state->caps) {
const GValue *codec_data_value;
GstStructure *str;
str = gst_caps_get_structure (nvdec->input_state->caps, 0);
codec_data_value = gst_structure_get_value (str, "codec_data");
if (codec_data_value && GST_VALUE_HOLDS_BUFFER (codec_data_value)) {
GstBuffer *codec_data = gst_value_get_buffer (codec_data_value);
gst_buffer_replace (&nvdec->codec_data, codec_data);
}
}
return ret;
}
#ifdef HAVE_NVCODEC_GST_GL
typedef struct
{
GstNvDec *nvdec;
CUVIDPARSERDISPINFO *dispinfo;
gboolean ret;
GstBuffer *output_buffer;
} GstNvDecCopyToGLData;
static void
copy_video_frame_to_gl_textures (GstGLContext * context,
GstNvDecCopyToGLData * data)
{
GstNvDec *nvdec = data->nvdec;
CUVIDPARSERDISPINFO *dispinfo = data->dispinfo;
GstCudaGraphicsResource **resources;
guint num_resources;
CUVIDPROCPARAMS proc_params = { 0, };
guintptr dptr;
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;
num_resources = gst_buffer_n_memory (data->output_buffer);
resources = g_newa (GstCudaGraphicsResource *, num_resources);
for (i = 0; i < num_resources; i++) {
GstMemory *mem;
mem = gst_buffer_peek_memory (data->output_buffer, i);
resources[i] = ensure_cuda_graphics_resource (mem, nvdec);
if (!resources[i]) {
GST_WARNING_OBJECT (nvdec, "could not register %dth memory", i);
data->ret = FALSE;
return;
}
/* Need PBO -> texture */
GST_MINI_OBJECT_FLAG_SET (mem, GST_GL_BASE_MEMORY_TRANSFER_NEED_UPLOAD);
}
if (!gst_cuda_context_push (nvdec->cuda_ctx)) {
GST_WARNING_OBJECT (nvdec, "failed to lock CUDA context");
data->ret = FALSE;
return;
}
if (!gst_cuda_result (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;
}
mcpy2d.srcMemoryType = CU_MEMORYTYPE_DEVICE;
mcpy2d.srcPitch = pitch;
mcpy2d.dstMemoryType = CU_MEMORYTYPE_DEVICE;
for (i = 0; i < num_resources; i++) {
CUdeviceptr cuda_ptr;
gsize size;
CUgraphicsResource cuda_resource =
gst_cuda_graphics_resource_map (resources[i], nvdec->cuda_stream,
CU_GRAPHICS_MAP_RESOURCE_FLAGS_WRITE_DISCARD);
if (!cuda_resource) {
GST_WARNING_OBJECT (nvdec, "failed to map CUDA resources");
data->ret = FALSE;
goto unmap_video_frame;
}
if (!gst_cuda_result (CuGraphicsResourceGetMappedPointer (&cuda_ptr, &size,
cuda_resource))) {
GST_WARNING_OBJECT (nvdec, "failed to map CUDA resource");
data->ret = FALSE;
break;
}
mcpy2d.dstPitch = GST_VIDEO_INFO_PLANE_STRIDE (info, i);
mcpy2d.WidthInBytes = GST_VIDEO_INFO_COMP_WIDTH (info, i)
* GST_VIDEO_INFO_COMP_PSTRIDE (info, i);
mcpy2d.srcDevice = dptr + (i * pitch * GST_VIDEO_INFO_HEIGHT (info));
mcpy2d.dstDevice = cuda_ptr;
mcpy2d.Height = GST_VIDEO_INFO_COMP_HEIGHT (info, i);
if (!gst_cuda_result (CuMemcpy2DAsync (&mcpy2d, nvdec->cuda_stream))) {
GST_WARNING_OBJECT (nvdec, "memcpy to mapped array failed");
data->ret = FALSE;
}
}
gst_cuda_result (CuStreamSynchronize (nvdec->cuda_stream));
unmap_video_frame:
for (i = 0; i < num_resources; i++) {
gst_cuda_graphics_resource_unmap (resources[i], nvdec->cuda_stream);
}
if (!gst_cuda_result (CuvidUnmapVideoFrame (nvdec->decoder, dptr)))
GST_WARNING_OBJECT (nvdec, "failed to unmap CUDA video frame");
unlock_cuda_context:
if (!gst_cuda_context_pop (NULL))
GST_WARNING_OBJECT (nvdec, "failed to unlock CUDA context");
}
static gboolean
gst_nvdec_copy_device_to_gl (GstNvDec * nvdec,
CUVIDPARSERDISPINFO * dispinfo, GstBuffer * output_buffer)
{
GstNvDecCopyToGLData data = { 0, };
data.nvdec = nvdec;
data.dispinfo = dispinfo;
data.output_buffer = output_buffer;
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 (!gst_cuda_context_push (nvdec->cuda_ctx)) {
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");
gst_cuda_context_pop (NULL);
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 (!gst_cuda_result (CuvidMapVideoFrame (nvdec->decoder,
dispinfo->picture_index, &dptr, &pitch, &params))) {
GST_ERROR_OBJECT (nvdec, "failed to map video frame");
gst_cuda_context_pop (NULL);
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 * GST_VIDEO_INFO_HEIGHT (info));
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 (!gst_cuda_result (CuMemcpy2DAsync (&copy_params, nvdec->cuda_stream))) {
GST_ERROR_OBJECT (nvdec, "failed to copy %dth plane", i);
CuvidUnmapVideoFrame (nvdec->decoder, dptr);
gst_video_frame_unmap (&video_frame);
gst_cuda_context_pop (NULL);
return FALSE;
}
}
gst_cuda_result (CuStreamSynchronize (nvdec->cuda_stream));
gst_video_frame_unmap (&video_frame);
if (!gst_cuda_result (CuvidUnmapVideoFrame (nvdec->decoder, dptr)))
GST_WARNING_OBJECT (nvdec, "failed to unmap video frame");
if (!gst_cuda_context_pop (NULL))
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);
GstNvDecClass *klass = GST_NVDEC_GET_CLASS (nvdec);
GstMapInfo map_info = GST_MAP_INFO_INIT;
CUVIDSOURCEDATAPACKET packet = { 0, };
GstBuffer *in_buffer;
GST_LOG_OBJECT (nvdec, "handle frame");
/* initialize with zero to keep track of frames */
gst_video_codec_frame_set_user_data (frame, GUINT_TO_POINTER (0), NULL);
in_buffer = gst_buffer_ref (frame->input_buffer);
if (GST_BUFFER_IS_DISCONT (frame->input_buffer)) {
packet.flags = CUVID_PKT_DISCONTINUITY;
if (nvdec->codec_data && klass->codec_type == cudaVideoCodec_MPEG4) {
in_buffer = gst_buffer_append (gst_buffer_ref (nvdec->codec_data),
in_buffer);
}
}
if (!gst_buffer_map (in_buffer, &map_info, GST_MAP_READ)) {
GST_ERROR_OBJECT (nvdec, "failed to map input buffer");
gst_buffer_unref (in_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;
nvdec->state = GST_NVDEC_STATE_PARSE;
nvdec->last_ret = GST_FLOW_OK;
if (!gst_cuda_result (CuvidParseVideoData (nvdec->parser, &packet)))
GST_WARNING_OBJECT (nvdec, "parser failed");
gst_buffer_unmap (in_buffer, &map_info);
gst_buffer_unref (in_buffer);
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;
nvdec->last_ret = GST_FLOW_OK;
if (nvdec->parser
&& !gst_cuda_result (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;
nvdec->state = GST_NVDEC_STATE_PARSE;
nvdec->last_ret = GST_FLOW_OK;
if (nvdec->parser
&& !gst_cuda_result (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);
}
#ifdef HAVE_NVCODEC_GST_GL
static gboolean
gst_nvdec_ensure_gl_context (GstNvDec * nvdec)
{
if (!nvdec->gl_display) {
GST_DEBUG_OBJECT (nvdec, "No available OpenGL display");
return FALSE;
}
if (!gst_gl_query_local_gl_context (GST_ELEMENT (nvdec), 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;
}
}
}
if (!gst_gl_context_check_gl_version (nvdec->gl_context,
SUPPORTED_GL_APIS, 3, 0)) {
GST_WARNING_OBJECT (nvdec, "OpenGL context could not support PBO download");
return FALSE;
}
return TRUE;
}
#endif
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);
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 (pool && !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)
{
GstNvDec *nvdec = GST_NVDEC (decoder);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
if (gst_cuda_handle_context_query (GST_ELEMENT (decoder),
query, nvdec->cuda_ctx)) {
return TRUE;
}
#ifdef HAVE_NVCODEC_GST_GL
if (gst_gl_handle_context_query (GST_ELEMENT (decoder), query,
nvdec->gl_display, nvdec->gl_context, nvdec->other_gl_context)) {
if (nvdec->gl_display)
gst_gl_display_filter_gl_api (GST_GL_DISPLAY (nvdec->gl_display),
SUPPORTED_GL_APIS);
return TRUE;
}
#endif
break;
default:
break;
}
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);
GstNvDecClass *klass = GST_NVDEC_GET_CLASS (nvdec);
GST_DEBUG_OBJECT (nvdec, "set context %s",
gst_context_get_context_type (context));
if (gst_cuda_handle_set_context (element,
context, klass->cuda_device_id, &nvdec->cuda_ctx)) {
goto done;
}
#ifdef HAVE_NVCODEC_GST_GL
gst_gl_handle_set_context (element, context, &nvdec->gl_display,
&nvdec->other_gl_context);
#endif
done:
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 device %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);
}
typedef enum
{
GST_NVDEC_FORMAT_FLAG_NONE = (1 << 0),
GST_NVDEC_FORMAT_FLAG_420_8BITS = (1 << 1),
GST_NVDEC_FORMAT_FLAG_420_10BITS = (1 << 2),
GST_NVDEC_FORMAT_FLAG_420_12BITS = (1 << 3),
GST_NVDEC_FORMAT_FLAG_444_8BITS = (1 << 4),
GST_NVDEC_FORMAT_FLAG_444_10BITS = (1 << 5),
GST_NVDEC_FORMAT_FLAG_444_12BITS = (1 << 6),
} GstNvDecFormatFlags;
static gboolean
gst_nvdec_get_supported_codec_profiles (GValue * profiles,
cudaVideoCodec codec_type, GstNvDecFormatFlags flags)
{
GValue val = G_VALUE_INIT;
gboolean ret = FALSE;
g_value_init (&val, G_TYPE_STRING);
switch (codec_type) {
case cudaVideoCodec_H264:
if ((flags & GST_NVDEC_FORMAT_FLAG_420_8BITS) ==
GST_NVDEC_FORMAT_FLAG_420_8BITS) {
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);
}
/* NVDEC supports only 4:2:0 8bits h264 decoding.
* following conditions are for the future enhancement */
if ((flags & GST_NVDEC_FORMAT_FLAG_420_10BITS) ==
GST_NVDEC_FORMAT_FLAG_420_10BITS) {
g_value_set_static_string (&val, "high-10");
gst_value_list_append_value (profiles, &val);
}
if ((flags & GST_NVDEC_FORMAT_FLAG_420_12BITS) ==
GST_NVDEC_FORMAT_FLAG_420_12BITS ||
(flags & GST_NVDEC_FORMAT_FLAG_444_8BITS) ==
GST_NVDEC_FORMAT_FLAG_444_8BITS ||
(flags & GST_NVDEC_FORMAT_FLAG_444_10BITS) ==
GST_NVDEC_FORMAT_FLAG_444_10BITS ||
(flags & GST_NVDEC_FORMAT_FLAG_444_12BITS) ==
GST_NVDEC_FORMAT_FLAG_444_12BITS) {
g_value_set_static_string (&val, "high-4:4:4");
gst_value_list_append_value (profiles, &val);
}
ret = TRUE;
break;
case cudaVideoCodec_HEVC:
if ((flags & GST_NVDEC_FORMAT_FLAG_420_8BITS) ==
GST_NVDEC_FORMAT_FLAG_420_8BITS) {
g_value_set_static_string (&val, "main");
gst_value_list_append_value (profiles, &val);
}
if ((flags & GST_NVDEC_FORMAT_FLAG_420_10BITS) ==
GST_NVDEC_FORMAT_FLAG_420_10BITS) {
g_value_set_static_string (&val, "main-10");
gst_value_list_append_value (profiles, &val);
}
if ((flags & GST_NVDEC_FORMAT_FLAG_420_12BITS) ==
GST_NVDEC_FORMAT_FLAG_420_12BITS) {
g_value_set_static_string (&val, "main-12");
gst_value_list_append_value (profiles, &val);
}
if ((flags & GST_NVDEC_FORMAT_FLAG_444_8BITS) ==
GST_NVDEC_FORMAT_FLAG_444_8BITS) {
g_value_set_static_string (&val, "main-444");
gst_value_list_append_value (profiles, &val);
}
if ((flags & GST_NVDEC_FORMAT_FLAG_444_10BITS) ==
GST_NVDEC_FORMAT_FLAG_444_10BITS) {
g_value_set_static_string (&val, "main-444-10");
gst_value_list_append_value (profiles, &val);
}
if ((flags & GST_NVDEC_FORMAT_FLAG_444_12BITS) ==
GST_NVDEC_FORMAT_FLAG_444_12BITS) {
g_value_set_static_string (&val, "main-444-12");
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[3] = { 0, 2, 4 };
GstNvDecFormatFlags format_flags = 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,
#endif
cudaVideoChromaFormat_420,
cudaVideoChromaFormat_444,
};
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, };
GstNvDecFormatFlags cur_flag = 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;
if (chroma_list[c_idx] == cudaVideoChromaFormat_420)
cur_flag = GST_NVDEC_FORMAT_FLAG_420_8BITS;
else
cur_flag = GST_NVDEC_FORMAT_FLAG_444_8BITS;
format_flags |= (cur_flag << (bitdepth_minus8[b_idx] / 2));
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 (bitdepth_minus8[b_idx] == 0) {
g_value_set_string (&format, "NV12");
} else if (bitdepth_minus8[b_idx] == 2) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
g_value_set_string (&format, "P010_10LE");
#else
g_value_set_string (&format, "P010_10BE");
#endif
} else if (bitdepth_minus8[b_idx] == 4) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
g_value_set_string (&format, "P016_LE");
#else
g_value_set_string (&format, "P016_BE");
#endif
} else {
GST_WARNING ("unhandled bitdepth %d", bitdepth_minus8[b_idx] + 8);
break;
}
num_support++;
gst_value_list_append_value (&format_list, &format);
break;
case cudaVideoChromaFormat_444:
if (cudaVideoCodec_JPEG == codec_type) {
/* NVDEC jpeg decoder can decode 4:4:4 format
* but it produces 4:2:0 frame */
break;
}
if (bitdepth_minus8[b_idx] == 0) {
g_value_set_string (&format, "Y444");
} else if (bitdepth_minus8[b_idx] == 2 ||
bitdepth_minus8[b_idx] == 4) {
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
g_value_set_string (&format, "Y444_16LE");
#else
g_value_set_string (&format, "Y444_16BE");
#endif
} else {
GST_WARNING ("unhandled bitdepth %d", bitdepth_minus8[b_idx] + 8);
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_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,
format_flags)) {
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_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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