/* GStreamer H265 encoder plugin * Copyright (C) 2005 Michal Benes * Copyright (C) 2005 Josef Zlomek * Copyright (C) 2008 Mark Nauwelaerts * Copyright (C) 2014 Thijs Vermeir * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ /** * SECTION:element-x265enc * * This element encodes raw video into H265 compressed data. * **/ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include "gstx265enc.h" #include #include #include #include #include #include GST_DEBUG_CATEGORY_STATIC (x265_enc_debug); #define GST_CAT_DEFAULT x265_enc_debug enum { PROP_0, PROP_BITRATE, PROP_QP, PROP_OPTION_STRING, PROP_X265_LOG_LEVEL, PROP_SPEED_PRESET, PROP_TUNE }; static GString *x265enc_defaults; #define PROP_BITRATE_DEFAULT (2 * 1024) #define PROP_QP_DEFAULT -1 #define PROP_OPTION_STRING_DEFAULT "" #define PROP_LOG_LEVEL_DEFAULT -1 // None #define PROP_SPEED_PRESET_DEFAULT 6 // Medium #define PROP_TUNE_DEFAULT 2 // SSIM #if G_BYTE_ORDER == G_LITTLE_ENDIAN #define FORMATS "I420, Y444, I420_10LE, Y444_10LE" #else #define FORMATS "I420, Y444, I420_10BE, Y444_10BE" #endif #define GST_X265_ENC_LOG_LEVEL_TYPE (gst_x265_enc_log_level_get_type()) static GType gst_x265_enc_log_level_get_type (void) { static GType log_level = 0; static const GEnumValue log_levels[] = { {X265_LOG_NONE, "No logging", "none"}, {X265_LOG_ERROR, "Error", "error"}, {X265_LOG_WARNING, "Warning", "warning"}, {X265_LOG_INFO, "Info", "info"}, {X265_LOG_DEBUG, "Debug", "debug"}, {X265_LOG_FULL, "Full", "full"}, {0, NULL, NULL} }; if (!log_level) { log_level = g_enum_register_static ("GstX265LogLevel", log_levels); } return log_level; } #define GST_X265_ENC_SPEED_PRESET_TYPE (gst_x265_enc_speed_preset_get_type()) static GType gst_x265_enc_speed_preset_get_type (void) { static GType speed_preset = 0; static GEnumValue *speed_presets; int n, i; if (speed_preset != 0) return speed_preset; n = 0; while (x265_preset_names[n] != NULL) n++; speed_presets = g_new0 (GEnumValue, n + 2); speed_presets[0].value = 0; speed_presets[0].value_name = "No preset"; speed_presets[0].value_nick = "No preset"; for (i = 0; i < n; i++) { speed_presets[i + 1].value = i + 1; speed_presets[i + 1].value_name = x265_preset_names[i]; speed_presets[i + 1].value_nick = x265_preset_names[i]; } speed_preset = g_enum_register_static ("GstX265SpeedPreset", speed_presets); return speed_preset; } #define GST_X265_ENC_TUNE_TYPE (gst_x265_enc_tune_get_type()) static GType gst_x265_enc_tune_get_type (void) { static GType tune = 0; static GEnumValue *tune_values; int n, i; if (tune != 0) return tune; n = 0; while (x265_tune_names[n] != NULL) n++; tune_values = g_new0 (GEnumValue, n + 2); tune_values[0].value = 0; tune_values[0].value_name = "No tunning"; tune_values[0].value_nick = "No tunning"; for (i = 0; i < n; i++) { tune_values[i + 1].value = i + 1; tune_values[i + 1].value_name = x265_tune_names[i]; tune_values[i + 1].value_nick = x265_tune_names[i]; } tune = g_enum_register_static ("GstX265Tune", tune_values); return tune; } static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, GST_STATIC_CAPS ("video/x-raw, " "format = (string) { " FORMATS " }, " "framerate = (fraction) [0, MAX], " "width = (int) [ 4, MAX ], " "height = (int) [ 4, MAX ]") ); static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS ("video/x-h265, " "framerate = (fraction) [0/1, MAX], " "width = (int) [ 4, MAX ], " "height = (int) [ 4, MAX ], " "stream-format = (string) { avc, byte-stream }, " "alignment = (string) au, " "profile = (string) { main }") ); static void gst_x265_enc_finalize (GObject * object); static gboolean gst_x265_enc_start (GstVideoEncoder * encoder); static gboolean gst_x265_enc_stop (GstVideoEncoder * encoder); static gboolean gst_x265_enc_flush (GstVideoEncoder * encoder); static gboolean gst_x265_enc_init_encoder (GstX265Enc * encoder); static void gst_x265_enc_close_encoder (GstX265Enc * encoder); static GstFlowReturn gst_x265_enc_finish (GstVideoEncoder * encoder); static GstFlowReturn gst_x265_enc_handle_frame (GstVideoEncoder * encoder, GstVideoCodecFrame * frame); static void gst_x265_enc_flush_frames (GstX265Enc * encoder, gboolean send); static GstFlowReturn gst_x265_enc_encode_frame (GstX265Enc * encoder, x265_picture * pic_in, GstVideoCodecFrame * input_frame, guint32 * i_nal, gboolean send); static gboolean gst_x265_enc_set_format (GstVideoEncoder * video_enc, GstVideoCodecState * state); static gboolean gst_x265_enc_propose_allocation (GstVideoEncoder * encoder, GstQuery * query); static void gst_x265_enc_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_x265_enc_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); #define gst_x265_enc_parent_class parent_class G_DEFINE_TYPE_WITH_CODE (GstX265Enc, gst_x265_enc, GST_TYPE_VIDEO_ENCODER, G_IMPLEMENT_INTERFACE (GST_TYPE_PRESET, NULL)); static void set_value (GValue * val, gint count, ...) { const gchar *fmt = NULL; GValue sval = G_VALUE_INIT; va_list ap; gint i; g_value_init (&sval, G_TYPE_STRING); if (count > 1) g_value_init (val, GST_TYPE_LIST); va_start (ap, count); for (i = 0; i < count; i++) { fmt = va_arg (ap, const gchar *); g_value_set_string (&sval, fmt); if (count > 1) { gst_value_list_append_value (val, &sval); } } va_end (ap); if (count == 1) *val = sval; else g_value_unset (&sval); } static void gst_x265_enc_add_x265_chroma_format (GstStructure * s, int x265_chroma_format_local) { GValue fmt = G_VALUE_INIT; if (x265_max_bit_depth >= 10) { GST_INFO ("This x265 build supports %d-bit depth", x265_max_bit_depth); if (x265_chroma_format_local == 0) { #if G_BYTE_ORDER == G_LITTLE_ENDIAN set_value (&fmt, 4, "I420", "Y444", "I420_10LE", "Y444_10LE"); #else set_value (&fmt, 4, "I420", "Y444", "I420_10BE", "Y444_10BE"); #endif } else if (x265_chroma_format_local == X265_CSP_I444) { #if G_BYTE_ORDER == G_LITTLE_ENDIAN set_value (&fmt, 2, "Y444", "Y444_10LE"); #else set_value (&fmt, 2, "Y444", "Y444_10BE"); #endif } else if (x265_chroma_format_local == X265_CSP_I420) { #if G_BYTE_ORDER == G_LITTLE_ENDIAN set_value (&fmt, 2, "I420", "I420_10LE"); #else set_value (&fmt, 2, "I420", "I420_10BE"); #endif } else { GST_ERROR ("Unsupported chroma format %d", x265_chroma_format_local); } } else if (x265_max_bit_depth == 8) { GST_INFO ("This x265 build supports 8-bit depth"); if (x265_chroma_format_local == 0) { set_value (&fmt, 2, "I420", "Y444"); } else if (x265_chroma_format_local == X265_CSP_I444) { set_value (&fmt, 1, "Y444"); } else if (x265_chroma_format_local == X265_CSP_I420) { set_value (&fmt, 1, "I420"); } else { GST_ERROR ("Unsupported chroma format %d", x265_chroma_format_local); } } if (G_VALUE_TYPE (&fmt) != G_TYPE_INVALID) gst_structure_take_value (s, "format", &fmt); } static GstCaps * gst_x265_enc_get_supported_input_caps (void) { GstCaps *caps; int x265_chroma_format = 0; caps = gst_caps_new_simple ("video/x-raw", "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, "width", GST_TYPE_INT_RANGE, 4, G_MAXINT, "height", GST_TYPE_INT_RANGE, 4, G_MAXINT, NULL); gst_x265_enc_add_x265_chroma_format (gst_caps_get_structure (caps, 0), x265_chroma_format); GST_DEBUG ("returning %" GST_PTR_FORMAT, caps); return caps; } static GstCaps * gst_x265_enc_sink_getcaps (GstVideoEncoder * enc, GstCaps * filter) { GstCaps *supported_incaps; GstCaps *ret; supported_incaps = gst_x265_enc_get_supported_input_caps (); ret = gst_video_encoder_proxy_getcaps (enc, supported_incaps, filter); if (supported_incaps) gst_caps_unref (supported_incaps); return ret; } static void gst_x265_enc_class_init (GstX265EncClass * klass) { GObjectClass *gobject_class; GstElementClass *element_class; GstVideoEncoderClass *gstencoder_class; x265enc_defaults = g_string_new (""); gobject_class = G_OBJECT_CLASS (klass); element_class = GST_ELEMENT_CLASS (klass); gstencoder_class = GST_VIDEO_ENCODER_CLASS (klass); gobject_class->set_property = gst_x265_enc_set_property; gobject_class->get_property = gst_x265_enc_get_property; gobject_class->finalize = gst_x265_enc_finalize; gstencoder_class->set_format = GST_DEBUG_FUNCPTR (gst_x265_enc_set_format); gstencoder_class->handle_frame = GST_DEBUG_FUNCPTR (gst_x265_enc_handle_frame); gstencoder_class->start = GST_DEBUG_FUNCPTR (gst_x265_enc_start); gstencoder_class->stop = GST_DEBUG_FUNCPTR (gst_x265_enc_stop); gstencoder_class->flush = GST_DEBUG_FUNCPTR (gst_x265_enc_flush); gstencoder_class->finish = GST_DEBUG_FUNCPTR (gst_x265_enc_finish); gstencoder_class->getcaps = GST_DEBUG_FUNCPTR (gst_x265_enc_sink_getcaps); gstencoder_class->propose_allocation = GST_DEBUG_FUNCPTR (gst_x265_enc_propose_allocation); g_object_class_install_property (gobject_class, PROP_BITRATE, g_param_spec_uint ("bitrate", "Bitrate", "Bitrate in kbit/sec", 1, 100 * 1024, PROP_BITRATE_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_MUTABLE_PLAYING)); g_object_class_install_property (gobject_class, PROP_QP, g_param_spec_int ("qp", "Quantization parameter", "QP for P slices in (implied) CQP mode (-1 = disabled)", -1, 51, PROP_QP_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_OPTION_STRING, g_param_spec_string ("option-string", "Option string", "String of x264 options (overridden by element properties)", PROP_OPTION_STRING_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_X265_LOG_LEVEL, g_param_spec_enum ("log-level", "(internal) x265 log level", "x265 log level", GST_X265_ENC_LOG_LEVEL_TYPE, PROP_LOG_LEVEL_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_SPEED_PRESET, g_param_spec_enum ("speed-preset", "Speed preset", "Preset name for speed/quality tradeoff options", GST_X265_ENC_SPEED_PRESET_TYPE, PROP_SPEED_PRESET_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_TUNE, g_param_spec_enum ("tune", "Tune options", "Preset name for tuning options", GST_X265_ENC_TUNE_TYPE, PROP_TUNE_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); gst_element_class_set_static_metadata (element_class, "x265enc", "Codec/Encoder/Video", "H265 Encoder", "Thijs Vermeir "); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&sink_factory)); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&src_factory)); } /* initialize the new element * instantiate pads and add them to element * set functions * initialize structure */ static void gst_x265_enc_init (GstX265Enc * encoder) { x265_param_default (&encoder->x265param); encoder->push_header = TRUE; encoder->bitrate = PROP_BITRATE_DEFAULT; encoder->qp = PROP_QP_DEFAULT; encoder->option_string_prop = g_string_new (PROP_OPTION_STRING_DEFAULT); encoder->log_level = PROP_LOG_LEVEL_DEFAULT; encoder->speed_preset = PROP_SPEED_PRESET_DEFAULT; encoder->tune = PROP_TUNE_DEFAULT; } typedef struct { GstVideoCodecFrame *frame; GstVideoFrame vframe; } FrameData; static FrameData * gst_x265_enc_queue_frame (GstX265Enc * enc, GstVideoCodecFrame * frame, GstVideoInfo * info) { GstVideoFrame vframe; FrameData *fdata; if (!gst_video_frame_map (&vframe, info, frame->input_buffer, GST_MAP_READ)) return NULL; fdata = g_slice_new (FrameData); fdata->frame = gst_video_codec_frame_ref (frame); fdata->vframe = vframe; enc->pending_frames = g_list_prepend (enc->pending_frames, fdata); return fdata; } static void gst_x265_enc_dequeue_frame (GstX265Enc * enc, GstVideoCodecFrame * frame) { GList *l; for (l = enc->pending_frames; l; l = l->next) { FrameData *fdata = l->data; if (fdata->frame != frame) continue; gst_video_frame_unmap (&fdata->vframe); gst_video_codec_frame_unref (fdata->frame); g_slice_free (FrameData, fdata); enc->pending_frames = g_list_delete_link (enc->pending_frames, l); return; } } static void gst_x265_enc_dequeue_all_frames (GstX265Enc * enc) { GList *l; for (l = enc->pending_frames; l; l = l->next) { FrameData *fdata = l->data; gst_video_frame_unmap (&fdata->vframe); gst_video_codec_frame_unref (fdata->frame); g_slice_free (FrameData, fdata); } g_list_free (enc->pending_frames); enc->pending_frames = NULL; } static gboolean gst_x265_enc_start (GstVideoEncoder * encoder) { //GstX265Enc *x265enc = GST_X265_ENC (encoder); return TRUE; } static gboolean gst_x265_enc_stop (GstVideoEncoder * encoder) { GstX265Enc *x265enc = GST_X265_ENC (encoder); GST_DEBUG_OBJECT (encoder, "stop encoder"); gst_x265_enc_flush_frames (x265enc, FALSE); gst_x265_enc_close_encoder (x265enc); gst_x265_enc_dequeue_all_frames (x265enc); if (x265enc->input_state) gst_video_codec_state_unref (x265enc->input_state); x265enc->input_state = NULL; return TRUE; } static gboolean gst_x265_enc_flush (GstVideoEncoder * encoder) { GstX265Enc *x265enc = GST_X265_ENC (encoder); GST_DEBUG_OBJECT (encoder, "flushing encoder"); gst_x265_enc_flush_frames (x265enc, FALSE); gst_x265_enc_close_encoder (x265enc); gst_x265_enc_dequeue_all_frames (x265enc); gst_x265_enc_init_encoder (x265enc); return TRUE; } static void gst_x265_enc_finalize (GObject * object) { GstX265Enc *encoder = GST_X265_ENC (object); if (encoder->input_state) gst_video_codec_state_unref (encoder->input_state); encoder->input_state = NULL; gst_x265_enc_close_encoder (encoder); G_OBJECT_CLASS (parent_class)->finalize (object); } static gint gst_x265_enc_gst_to_x265_video_format (GstVideoFormat format, gint * nplanes) { switch (format) { case GST_VIDEO_FORMAT_I420: case GST_VIDEO_FORMAT_YV12: case GST_VIDEO_FORMAT_I420_10LE: case GST_VIDEO_FORMAT_I420_10BE: if (nplanes) *nplanes = 3; return X265_CSP_I420; case GST_VIDEO_FORMAT_Y444: case GST_VIDEO_FORMAT_Y444_10LE: case GST_VIDEO_FORMAT_Y444_10BE: if (nplanes) *nplanes = 3; return X265_CSP_I444; default: g_return_val_if_reached (GST_VIDEO_FORMAT_UNKNOWN); } } /* * gst_x265_enc_parse_options * @encoder: Encoder to which options are assigned * @str: Option string * * Parse option string and assign to x265 parameters * */ static gboolean gst_x265_enc_parse_options (GstX265Enc * encoder, const gchar * str) { GStrv kvpairs; guint npairs, i; gint parse_result = 0, ret = 0; gchar *options = (gchar *) str; while (*options == ':') options++; kvpairs = g_strsplit (options, ":", 0); npairs = g_strv_length (kvpairs); for (i = 0; i < npairs; i++) { GStrv key_val = g_strsplit (kvpairs[i], "=", 2); parse_result = x265_param_parse (&encoder->x265param, key_val[0], key_val[1]); if (parse_result == X265_PARAM_BAD_NAME) { GST_ERROR_OBJECT (encoder, "Bad name for option %s=%s", key_val[0] ? key_val[0] : "", key_val[1] ? key_val[1] : ""); } if (parse_result == X265_PARAM_BAD_VALUE) { GST_ERROR_OBJECT (encoder, "Bad value for option %s=%s (Note: a NULL value for a non-boolean triggers this)", key_val[0] ? key_val[0] : "", key_val[1] ? key_val[1] : ""); } g_strfreev (key_val); if (parse_result) ret++; } g_strfreev (kvpairs); return !ret; } /* * gst_x265_enc_init_encoder * @encoder: Encoder which should be initialized. * * Initialize x265 encoder. * */ static gboolean gst_x265_enc_init_encoder (GstX265Enc * encoder) { GstVideoInfo *info; if (!encoder->input_state) { GST_DEBUG_OBJECT (encoder, "Have no input state yet"); return FALSE; } info = &encoder->input_state->info; /* make sure that the encoder is closed */ gst_x265_enc_close_encoder (encoder); GST_OBJECT_LOCK (encoder); if (x265_param_default_preset (&encoder->x265param, x265_preset_names[encoder->speed_preset - 1], x265_tune_names[encoder->tune - 1]) < 0) { GST_DEBUG_OBJECT (encoder, "preset or tune unrecognized"); GST_OBJECT_UNLOCK (encoder); return FALSE; } /* set up encoder parameters */ encoder->x265param.logLevel = encoder->log_level; encoder->x265param.internalCsp = gst_x265_enc_gst_to_x265_video_format (info->finfo->format, NULL); if (info->fps_d == 0 || info->fps_n == 0) { } else { encoder->x265param.fpsNum = info->fps_n; encoder->x265param.fpsDenom = info->fps_d; } encoder->x265param.sourceWidth = info->width; encoder->x265param.sourceHeight = info->height; if (info->par_d > 0) { encoder->x265param.vui.sarWidth = info->par_n; encoder->x265param.vui.sarHeight = info->par_d; } if (encoder->qp != -1) { /* CQP */ encoder->x265param.rc.qp = encoder->qp; encoder->x265param.rc.rateControlMode = X265_RC_CQP; } else { /* ABR */ encoder->x265param.rc.bitrate = encoder->bitrate; encoder->x265param.rc.rateControlMode = X265_RC_ABR; } /* apply option-string property */ if (encoder->option_string_prop && encoder->option_string_prop->len) { GST_DEBUG_OBJECT (encoder, "Applying option-string: %s", encoder->option_string_prop->str); if (gst_x265_enc_parse_options (encoder, encoder->option_string_prop->str) == FALSE) { GST_DEBUG_OBJECT (encoder, "Your option-string contains errors."); GST_OBJECT_UNLOCK (encoder); return FALSE; } } encoder->reconfig = FALSE; /* good start, will be corrected if needed */ encoder->dts_offset = 0; GST_OBJECT_UNLOCK (encoder); encoder->x265enc = x265_encoder_open (&encoder->x265param); if (!encoder->x265enc) { GST_ELEMENT_ERROR (encoder, STREAM, ENCODE, ("Can not initialize x265 encoder."), (NULL)); return FALSE; } encoder->push_header = TRUE; return TRUE; } /* gst_x265_enc_close_encoder * @encoder: Encoder which should close. * * Close x265 encoder. */ static void gst_x265_enc_close_encoder (GstX265Enc * encoder) { if (encoder->x265enc != NULL) { x265_encoder_close (encoder->x265enc); encoder->x265enc = NULL; } } static x265_nal * gst_x265_enc_bytestream_to_nal (x265_nal * input) { x265_nal *output; int i, j, zeros; output = g_malloc (sizeof (x265_nal)); output->payload = g_malloc (input->sizeBytes - 4); output->sizeBytes = input->sizeBytes - 4; output->type = input->type; zeros = 0; for (i = 4, j = 0; i < input->sizeBytes; (i++, j++)) { if (input->payload[i] == 0x00) { zeros++; } else if (input->payload[i] == 0x03 && zeros == 2) { zeros = 0; j--; output->sizeBytes--; continue; } else { zeros = 0; } output->payload[j] = input->payload[i]; } return output; } static void x265_nal_free (x265_nal * nal) { g_free (nal->payload); g_free (nal); } static gboolean gst_x265_enc_set_level_tier_and_profile (GstX265Enc * encoder, GstCaps * caps) { x265_nal *nal, *vps_nal; guint32 i_nal; int header_return; gboolean ret = TRUE; GST_DEBUG_OBJECT (encoder, "set profile, level and tier"); header_return = x265_encoder_headers (encoder->x265enc, &nal, &i_nal); if (header_return < 0) { GST_ELEMENT_ERROR (encoder, STREAM, ENCODE, ("Encode x265 header failed."), ("x265_encoder_headers return code=%d", header_return)); return FALSE; } GST_DEBUG_OBJECT (encoder, "%d nal units in header", i_nal); g_assert (nal[0].type == NAL_UNIT_VPS); vps_nal = gst_x265_enc_bytestream_to_nal (&nal[0]); GST_MEMDUMP ("VPS", vps_nal->payload, vps_nal->sizeBytes); if (!gst_codec_utils_h265_caps_set_level_tier_and_profile (caps, vps_nal->payload + 6, vps_nal->sizeBytes - 6)) { GST_ELEMENT_ERROR (encoder, STREAM, ENCODE, ("Encode x265 failed."), ("Failed to find correct level, tier or profile in VPS")); ret = FALSE; } x265_nal_free (vps_nal); return ret; } static GstBuffer * gst_x265_enc_get_header_buffer (GstX265Enc * encoder) { x265_nal *nal; guint32 i_nal, i, offset; gint32 vps_idx, sps_idx, pps_idx; int header_return; GstBuffer *buf; header_return = x265_encoder_headers (encoder->x265enc, &nal, &i_nal); if (header_return < 0) { GST_ELEMENT_ERROR (encoder, STREAM, ENCODE, ("Encode x265 header failed."), ("x265_encoder_headers return code=%d", header_return)); return FALSE; } GST_DEBUG_OBJECT (encoder, "%d nal units in header", i_nal); /* x265 returns also non header nal units with the call x265_encoder_headers. * The usefull headers are sequential (VPS, SPS and PPS), so we look for this * nal units and only copy these tree nal units as the header */ vps_idx = sps_idx = pps_idx = -1; for (i = 0; i < i_nal; i++) { if (nal[i].type == 32) { vps_idx = i; } else if (nal[i].type == 33) { sps_idx = i; } else if (nal[i].type == 34) { pps_idx = i; } } if (vps_idx == -1 || sps_idx == -1 || pps_idx == -1) { GST_ELEMENT_ERROR (encoder, STREAM, ENCODE, ("Encode x265 header failed."), ("x265_encoder_headers did not return VPS, SPS and PPS")); return FALSE; } offset = 0; buf = gst_buffer_new_allocate (NULL, nal[vps_idx].sizeBytes + nal[sps_idx].sizeBytes + nal[pps_idx].sizeBytes, NULL); gst_buffer_fill (buf, offset, nal[vps_idx].payload, nal[vps_idx].sizeBytes); offset += nal[vps_idx].sizeBytes; gst_buffer_fill (buf, offset, nal[sps_idx].payload, nal[sps_idx].sizeBytes); offset += nal[sps_idx].sizeBytes; gst_buffer_fill (buf, offset, nal[pps_idx].payload, nal[pps_idx].sizeBytes); return buf; } /* gst_x265_enc_set_src_caps * Returns: TRUE on success. */ static gboolean gst_x265_enc_set_src_caps (GstX265Enc * encoder, GstCaps * caps) { GstCaps *outcaps; GstStructure *structure; GstVideoCodecState *state; GstTagList *tags; outcaps = gst_caps_new_empty_simple ("video/x-h265"); structure = gst_caps_get_structure (outcaps, 0); gst_structure_set (structure, "stream-format", G_TYPE_STRING, "byte-stream", NULL); gst_structure_set (structure, "alignment", G_TYPE_STRING, "au", NULL); if (!gst_x265_enc_set_level_tier_and_profile (encoder, outcaps)) { gst_caps_unref (outcaps); return FALSE; } state = gst_video_encoder_set_output_state (GST_VIDEO_ENCODER (encoder), outcaps, encoder->input_state); GST_DEBUG_OBJECT (encoder, "output caps: %" GST_PTR_FORMAT, state->caps); gst_video_codec_state_unref (state); tags = gst_tag_list_new_empty (); gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_ENCODER, "x265", GST_TAG_ENCODER_VERSION, x265_version_str, NULL); gst_video_encoder_merge_tags (GST_VIDEO_ENCODER (encoder), tags, GST_TAG_MERGE_REPLACE); gst_tag_list_unref (tags); return TRUE; } static void gst_x265_enc_set_latency (GstX265Enc * encoder) { GstVideoInfo *info = &encoder->input_state->info; gint max_delayed_frames; GstClockTime latency; /* FIXME get a real value from the encoder, this is currently not exposed */ if (encoder->tune > 0 && encoder->tune <= G_N_ELEMENTS (x265_tune_names) && strcmp (x265_tune_names[encoder->tune - 1], "zerolatency") == 0) max_delayed_frames = 0; else max_delayed_frames = 5; if (info->fps_n) { latency = gst_util_uint64_scale_ceil (GST_SECOND * info->fps_d, max_delayed_frames, info->fps_n); } else { /* FIXME: Assume 25fps. This is better than reporting no latency at * all and then later failing in live pipelines */ latency = gst_util_uint64_scale_ceil (GST_SECOND * 1, max_delayed_frames, 25); } GST_INFO_OBJECT (encoder, "Updating latency to %" GST_TIME_FORMAT " (%d frames)", GST_TIME_ARGS (latency), max_delayed_frames); gst_video_encoder_set_latency (GST_VIDEO_ENCODER (encoder), latency, latency); } static gboolean gst_x265_enc_set_format (GstVideoEncoder * video_enc, GstVideoCodecState * state) { GstX265Enc *encoder = GST_X265_ENC (video_enc); GstVideoInfo *info = &state->info; /* If the encoder is initialized, do not reinitialize it again if not * necessary */ if (encoder->x265enc) { GstVideoInfo *old = &encoder->input_state->info; if (info->finfo->format == old->finfo->format && info->width == old->width && info->height == old->height && info->fps_n == old->fps_n && info->fps_d == old->fps_d && info->par_n == old->par_n && info->par_d == old->par_d) { gst_video_codec_state_unref (encoder->input_state); encoder->input_state = gst_video_codec_state_ref (state); return TRUE; } /* clear out pending frames */ gst_x265_enc_flush_frames (encoder, TRUE); } if (encoder->input_state) gst_video_codec_state_unref (encoder->input_state); encoder->input_state = gst_video_codec_state_ref (state); if (!gst_x265_enc_init_encoder (encoder)) return FALSE; if (!gst_x265_enc_set_src_caps (encoder, state->caps)) { gst_x265_enc_close_encoder (encoder); return FALSE; } gst_x265_enc_set_latency (encoder); return TRUE; } static GstFlowReturn gst_x265_enc_finish (GstVideoEncoder * encoder) { GST_DEBUG_OBJECT (encoder, "finish encoder"); gst_x265_enc_flush_frames (GST_X265_ENC (encoder), TRUE); gst_x265_enc_flush_frames (GST_X265_ENC (encoder), TRUE); return GST_FLOW_OK; } static gboolean gst_x265_enc_propose_allocation (GstVideoEncoder * encoder, GstQuery * query) { gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL); return GST_VIDEO_ENCODER_CLASS (parent_class)->propose_allocation (encoder, query); } /* chain function * this function does the actual processing */ static GstFlowReturn gst_x265_enc_handle_frame (GstVideoEncoder * video_enc, GstVideoCodecFrame * frame) { GstX265Enc *encoder = GST_X265_ENC (video_enc); GstVideoInfo *info = &encoder->input_state->info; GstFlowReturn ret; x265_picture pic_in; guint32 i_nal, i; FrameData *fdata; gint nplanes = 0; if (G_UNLIKELY (encoder->x265enc == NULL)) goto not_inited; /* set up input picture */ x265_picture_init (&encoder->x265param, &pic_in); fdata = gst_x265_enc_queue_frame (encoder, frame, info); if (!fdata) goto invalid_frame; pic_in.colorSpace = gst_x265_enc_gst_to_x265_video_format (info->finfo->format, &nplanes); for (i = 0; i < nplanes; i++) { pic_in.planes[i] = GST_VIDEO_FRAME_PLANE_DATA (&fdata->vframe, i); pic_in.stride[i] = GST_VIDEO_FRAME_COMP_STRIDE (&fdata->vframe, i); } pic_in.sliceType = X265_TYPE_AUTO; pic_in.pts = frame->pts; pic_in.dts = frame->dts; pic_in.bitDepth = info->finfo->depth[0]; pic_in.userData = GINT_TO_POINTER (frame->system_frame_number); ret = gst_x265_enc_encode_frame (encoder, &pic_in, frame, &i_nal, TRUE); /* input buffer is released later on */ return ret; /* ERRORS */ not_inited: { GST_WARNING_OBJECT (encoder, "Got buffer before set_caps was called"); return GST_FLOW_NOT_NEGOTIATED; } invalid_frame: { GST_ERROR_OBJECT (encoder, "Failed to map frame"); return GST_FLOW_ERROR; } } static GstFlowReturn gst_x265_enc_encode_frame (GstX265Enc * encoder, x265_picture * pic_in, GstVideoCodecFrame * input_frame, guint32 * i_nal, gboolean send) { GstVideoCodecFrame *frame = NULL; GstBuffer *out_buf = NULL; x265_picture pic_out; x265_nal *nal; int i_size, i, offset; int encoder_return; GstFlowReturn ret = GST_FLOW_OK; gboolean update_latency = FALSE; if (G_UNLIKELY (encoder->x265enc == NULL)) { if (input_frame) gst_video_codec_frame_unref (input_frame); return GST_FLOW_NOT_NEGOTIATED; } GST_OBJECT_LOCK (encoder); if (encoder->reconfig) { // x265_encoder_reconfig is not yet implemented thus we shut down and re-create encoder gst_x265_enc_init_encoder (encoder); update_latency = TRUE; } if (pic_in && input_frame) { if (GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (input_frame)) { GST_INFO_OBJECT (encoder, "Forcing key frame"); pic_in->sliceType = X265_TYPE_IDR; } } GST_OBJECT_UNLOCK (encoder); if (G_UNLIKELY (update_latency)) gst_x265_enc_set_latency (encoder); encoder_return = x265_encoder_encode (encoder->x265enc, &nal, i_nal, pic_in, &pic_out); GST_DEBUG_OBJECT (encoder, "encoder result (%d) with %u nal units", encoder_return, *i_nal); if (encoder_return < 0) { GST_ELEMENT_ERROR (encoder, STREAM, ENCODE, ("Encode x265 frame failed."), ("x265_encoder_encode return code=%d", encoder_return)); ret = GST_FLOW_ERROR; /* Make sure we finish this frame */ frame = input_frame; goto out; } /* Input frame is now queued */ if (input_frame) gst_video_codec_frame_unref (input_frame); if (!*i_nal) { ret = GST_FLOW_OK; GST_LOG_OBJECT (encoder, "no output yet"); goto out; } frame = gst_video_encoder_get_frame (GST_VIDEO_ENCODER (encoder), GPOINTER_TO_INT (pic_out.userData)); g_assert (frame || !send); GST_DEBUG_OBJECT (encoder, "output picture ready POC=%d system=%d frame found %d", pic_out.poc, GPOINTER_TO_INT (pic_out.userData), frame != NULL); if (!send || !frame) { GST_LOG_OBJECT (encoder, "not sending (%d) or frame not found (%d)", send, frame != NULL); ret = GST_FLOW_OK; goto out; } i_size = 0; offset = 0; for (i = 0; i < *i_nal; i++) i_size += nal[i].sizeBytes; out_buf = gst_buffer_new_allocate (NULL, i_size, NULL); for (i = 0; i < *i_nal; i++) { gst_buffer_fill (out_buf, offset, nal[i].payload, nal[i].sizeBytes); offset += nal[i].sizeBytes; } frame->output_buffer = out_buf; if (encoder->push_header) { GstBuffer *header; header = gst_x265_enc_get_header_buffer (encoder); frame->output_buffer = gst_buffer_append (header, frame->output_buffer); encoder->push_header = FALSE; } GST_LOG_OBJECT (encoder, "output: dts %" G_GINT64_FORMAT " pts %" G_GINT64_FORMAT, (gint64) pic_out.dts, (gint64) pic_out.pts); frame->dts = pic_out.dts + encoder->dts_offset; out: if (frame) { gst_x265_enc_dequeue_frame (encoder, frame); ret = gst_video_encoder_finish_frame (GST_VIDEO_ENCODER (encoder), frame); } return ret; } static void gst_x265_enc_flush_frames (GstX265Enc * encoder, gboolean send) { GstFlowReturn flow_ret; guint32 i_nal; /* first send the remaining frames */ if (encoder->x265enc) do { flow_ret = gst_x265_enc_encode_frame (encoder, NULL, NULL, &i_nal, send); } while (flow_ret == GST_FLOW_OK && i_nal > 0); } static void gst_x265_enc_reconfig (GstX265Enc * encoder) { encoder->x265param.rc.bitrate = encoder->bitrate; encoder->reconfig = TRUE; } static void gst_x265_enc_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstX265Enc *encoder; GstState state; encoder = GST_X265_ENC (object); GST_OBJECT_LOCK (encoder); state = GST_STATE (encoder); if ((state != GST_STATE_READY && state != GST_STATE_NULL) && !(pspec->flags & GST_PARAM_MUTABLE_PLAYING)) goto wrong_state; switch (prop_id) { case PROP_BITRATE: encoder->bitrate = g_value_get_uint (value); break; case PROP_QP: encoder->qp = g_value_get_int (value); break; case PROP_OPTION_STRING: g_string_assign (encoder->option_string_prop, g_value_get_string (value)); break; case PROP_X265_LOG_LEVEL: encoder->log_level = g_value_get_enum (value); break; case PROP_SPEED_PRESET: encoder->speed_preset = g_value_get_enum (value); break; case PROP_TUNE: encoder->tune = g_value_get_enum (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } gst_x265_enc_reconfig (encoder); GST_OBJECT_UNLOCK (encoder); return; wrong_state: { GST_WARNING_OBJECT (encoder, "setting property in wrong state"); GST_OBJECT_UNLOCK (encoder); } } static void gst_x265_enc_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstX265Enc *encoder; encoder = GST_X265_ENC (object); GST_OBJECT_LOCK (encoder); switch (prop_id) { case PROP_BITRATE: g_value_set_uint (value, encoder->bitrate); break; case PROP_QP: g_value_set_int (value, encoder->qp); break; case PROP_OPTION_STRING: g_value_set_string (value, encoder->option_string_prop->str); break; case PROP_X265_LOG_LEVEL: g_value_set_enum (value, encoder->log_level); break; case PROP_SPEED_PRESET: g_value_set_enum (value, encoder->speed_preset); break; case PROP_TUNE: g_value_set_enum (value, encoder->tune); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } GST_OBJECT_UNLOCK (encoder); } static gboolean plugin_init (GstPlugin * plugin) { GST_DEBUG_CATEGORY_INIT (x265_enc_debug, "x265enc", 0, "h265 encoding element"); GST_INFO ("x265 build: %u", X265_BUILD); return gst_element_register (plugin, "x265enc", GST_RANK_PRIMARY, GST_TYPE_X265_ENC); } GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, x265, "x265-based H265 plugins", plugin_init, VERSION, "GPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)