From 3f28da7f5a224178d104992fe902212015dfb2e4 Mon Sep 17 00:00:00 2001 From: Sreerenj Balachandran Date: Tue, 24 Feb 2015 17:14:33 +0200 Subject: [PATCH] encoder: h264: add support for more than 2 views Add support for H.264 MVC Multiview High profile encoding with more than 2 views. All views within the same accesss unit are provided in increasing order of view order index (VOIdx). Upto 10 view are supported for now. A new property "view-ids" has been provided for the plugins to set the view ids (which is an array of guint values) to be used for mvc encoding. https://bugzilla.gnome.org/show_bug.cgi?id=732453 --- gst-libs/gst/vaapi/gstvaapiencoder_h264.c | 61 ++++++++++++++++++++++++++----- gst-libs/gst/vaapi/gstvaapiencoder_h264.h | 2 + 2 files changed, 54 insertions(+), 9 deletions(-) diff --git a/gst-libs/gst/vaapi/gstvaapiencoder_h264.c b/gst-libs/gst/vaapi/gstvaapiencoder_h264.c index 203177e..2a5a3c7 100644 --- a/gst-libs/gst/vaapi/gstvaapiencoder_h264.c +++ b/gst-libs/gst/vaapi/gstvaapiencoder_h264.c @@ -21,6 +21,11 @@ * Boston, MA 02110-1301 USA */ +/* GValueArray has deprecated without providing an alternative in glib >= 2.32 + * See https://bugzilla.gnome.org/show_bug.cgi?id=667228 + */ +#define GLIB_DISABLE_DEPRECATION_WARNINGS + #include "sysdeps.h" #include #include @@ -37,8 +42,12 @@ #define DEBUG 1 #include "gstvaapidebug.h" + /* Define the maximum number of views supported */ -#define MAX_NUM_VIEWS 2 +#define MAX_NUM_VIEWS 10 + +/* Define the maximum value for view-id */ +#define MAX_VIEW_ID 1023 /* Define the maximum IDR period */ #define MAX_IDR_PERIOD 512 @@ -549,7 +558,7 @@ bs_write_sps (GstBitWriter * bs, static gboolean bs_write_subset_sps (GstBitWriter * bs, const VAEncSequenceParameterBufferH264 * seq_param, GstVaapiProfile profile, - guint num_views, const VAEncMiscParameterHRD * hrd_params) + guint num_views, guint16 *view_ids, const VAEncMiscParameterHRD * hrd_params) { guint32 i, j, k; @@ -569,7 +578,7 @@ bs_write_subset_sps (GstBitWriter * bs, WRITE_UE (bs, num_views_minus1); for (i = 0; i <= num_views_minus1; i++) - WRITE_UE (bs, i); + WRITE_UE (bs, view_ids[i]); for (i = 1; i <= num_views_minus1; i++) { guint32 num_anchor_refs_l0 = 0; @@ -759,8 +768,9 @@ struct _GstVaapiEncoderH264 /* MVC */ gboolean is_mvc; - guint32 view_idx; + guint32 view_idx; /* View Order Index (VOIdx) */ guint32 num_views; + guint16 view_ids[MAX_NUM_VIEWS]; GstVaapiH264ViewRefPool ref_pools[MAX_NUM_VIEWS]; GstVaapiH264ViewReorderPool reorder_pools[MAX_NUM_VIEWS]; }; @@ -1311,7 +1321,7 @@ add_packed_sequence_header_mvc (GstVaapiEncoderH264 * encoder, WRITE_UINT32 (&bs, 0x00000001, 32); /* start code */ bs_write_nal_header (&bs, GST_H264_NAL_REF_IDC_HIGH, GST_H264_NAL_SUBSET_SPS); - bs_write_subset_sps (&bs, seq_param, encoder->profile, encoder->num_views, + bs_write_subset_sps (&bs, seq_param, encoder->profile, encoder->num_views, encoder->view_ids, &hrd_params); g_assert (GST_BIT_WRITER_BIT_SIZE (&bs) % 8 == 0); @@ -1491,7 +1501,7 @@ add_packed_slice_header (GstVaapiEncoderH264 * encoder, /* pack nal_unit_header_mvc_extension() for the non base view */ if (encoder->is_mvc && encoder->view_idx) { bs_write_nal_header (&bs, nal_ref_idc, GST_H264_NAL_SLICE_EXT); - bs_write_nal_header_mvc_extension (&bs, picture, encoder->view_idx); + bs_write_nal_header_mvc_extension (&bs, picture, encoder->view_ids[encoder->view_idx]); } else bs_write_nal_header (&bs, nal_ref_idc, nal_unit_type); @@ -1760,7 +1770,7 @@ fill_picture (GstVaapiEncoderH264 * encoder, GstVaapiEncPicture * picture, pic_param->coded_buf = GST_VAAPI_OBJECT_ID (codedbuf); pic_param->pic_parameter_set_id = encoder->view_idx; - pic_param->seq_parameter_set_id = encoder->view_idx; + pic_param->seq_parameter_set_id = encoder->view_idx ? 1 : 0; pic_param->last_picture = 0; /* means last encoding picture */ pic_param->frame_num = picture->frame_num; pic_param->pic_init_qp = encoder->init_qp; @@ -2404,9 +2414,9 @@ gst_vaapi_encoder_h264_reordering (GstVaapiEncoder * base_encoder, /* encoding views alternatively for MVC */ if (encoder->is_mvc) { if (frame) - encoder->view_idx = frame->system_frame_number % MAX_NUM_VIEWS; + encoder->view_idx = frame->system_frame_number % encoder->num_views; else - encoder->view_idx = (encoder->view_idx + 1) % MAX_NUM_VIEWS; + encoder->view_idx = (encoder->view_idx + 1) % encoder->num_views; } reorder_pool = &encoder->reorder_pools[encoder->view_idx]; @@ -2584,6 +2594,7 @@ gst_vaapi_encoder_h264_init (GstVaapiEncoder * base_encoder) encoder->is_mvc = FALSE; encoder->num_views = 1; encoder->view_idx = 0; + memset (encoder->view_ids, 0, sizeof (encoder->view_ids)); /* re-ordering list initialize */ for (i = 0; i < MAX_NUM_VIEWS; i++) { @@ -2677,6 +2688,25 @@ gst_vaapi_encoder_h264_set_property (GstVaapiEncoder * base_encoder, case GST_VAAPI_ENCODER_H264_PROP_NUM_VIEWS: encoder->num_views = g_value_get_uint (value); break; + case GST_VAAPI_ENCODER_H264_PROP_VIEW_IDS: + { + guint i; + GValueArray *view_ids = g_value_get_boxed (value); + + if (view_ids == NULL) { + for (i = 0; i < encoder->num_views; i++) + encoder->view_ids[i] = i; + } + else { + g_assert (view_ids->n_values <= encoder->num_views); + + for (i = 0; i < encoder->num_views; i++) { + GValue *val = g_value_array_get_nth (view_ids, i); + encoder->view_ids[i] = g_value_get_uint (val); + } + } + break; + } default: return GST_VAAPI_ENCODER_STATUS_ERROR_INVALID_PARAMETER; } @@ -2828,6 +2858,19 @@ gst_vaapi_encoder_h264_get_default_properties (void) "Number of Views", "Number of Views for MVC encoding", 1, MAX_NUM_VIEWS, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); + /** + * GstVaapiEncoderH264:view-ids: + * + * The view ids for MVC encoding . + */ + GST_VAAPI_ENCODER_PROPERTIES_APPEND (props, + GST_VAAPI_ENCODER_H264_PROP_VIEW_IDS, + g_param_spec_value_array ("view-ids", + "View IDs", "Set of View Ids used for MVC encoding", + g_param_spec_uint ("view-id-value", "View id value", + "view id values used for mvc encoding", 0, MAX_VIEW_ID, 0, + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS), + G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); return props; } diff --git a/gst-libs/gst/vaapi/gstvaapiencoder_h264.h b/gst-libs/gst/vaapi/gstvaapiencoder_h264.h index 77d7f0a..4e64d3b 100644 --- a/gst-libs/gst/vaapi/gstvaapiencoder_h264.h +++ b/gst-libs/gst/vaapi/gstvaapiencoder_h264.h @@ -47,6 +47,7 @@ typedef struct _GstVaapiEncoderH264 GstVaapiEncoderH264; * @GST_VAAPI_ENCODER_H264_PROP_CPB_LENGTH: Length of the CPB buffer * in milliseconds (uint). * @GST_VAAPI_ENCODER_H264_PROP_NUM_VIEWS: Number of views per frame. + * @GST_VAAPI_ENCODER_H264_PROP_VIEW_IDS: View IDs * * The set of H.264 encoder specific configurable properties. */ @@ -59,6 +60,7 @@ typedef enum { GST_VAAPI_ENCODER_H264_PROP_DCT8X8 = -6, GST_VAAPI_ENCODER_H264_PROP_CPB_LENGTH = -7, GST_VAAPI_ENCODER_H264_PROP_NUM_VIEWS = -8, + GST_VAAPI_ENCODER_H264_PROP_VIEW_IDS = -9 } GstVaapiEncoderH264Prop; GstVaapiEncoder * -- 2.7.4