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nvdec: Add support dynamic output format change

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Implementing ::negotiate() method to support runtime output format
change. If downstream was reconfigured, baseclass will invoke
::negotiate() method, and nvdec should update output memory
type depending on downstream caps.
This commit is contained in:
Seungha Yang 2019-08-09 20:19:38 +09:00
parent 39f800c449
commit 069fe93452
1 changed files with 79 additions and 59 deletions
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138
sys/nvcodec/gstnvdec.c
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@ -157,7 +157,9 @@ static gboolean gst_nvdec_src_query (GstVideoDecoder * decoder,
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);
#define gst_nvdec_parent_class parent_class
G_DEFINE_ABSTRACT_TYPE (GstNvDec, gst_nvdec, GST_TYPE_VIDEO_DECODER);
static void
@ -179,6 +181,7 @@ gst_nvdec_class_init (GstNvDecClass * klass)
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);
}
@ -406,66 +409,7 @@ parser_sequence_callback (GstNvDec * nvdec, CUVIDEOFORMAT * format)
}
if (!gst_pad_has_current_caps (GST_VIDEO_DECODER_SRC_PAD (nvdec)) || updata) {
GstVideoCodecState *state;
GstVideoInfo *vinfo;
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_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;
}
@ -478,6 +422,82 @@ 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_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)
{