/* VP8 * Copyright (C) 2006 David Schleef * Copyright (C) 2010 Entropy Wave Inc * Copyright (C) 2010 Sebastian Dröge * * 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., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. * */ /** * SECTION:element-vp8enc * @see_also: vp8dec, webmmux, oggmux * * This element encodes raw video into a VP8 stream. * VP8 is a royalty-free * video codec maintained by Google * . It's the successor of On2 VP3, which was the base of the * Theora video codec. * * To control the quality of the encoding, the #GstVP8Enc::bitrate and * #GstVP8Enc::quality properties can be used. These two properties are * mutualy exclusive. Setting the bitrate property will produce a constant * bitrate (CBR) stream while setting the quality property will produce a * variable bitrate (VBR) stream. * * * Example pipeline * |[ * gst-launch -v videotestsrc num-buffers=1000 ! vp8enc ! webmmux ! filesink location=videotestsrc.webm * ]| This example pipeline will encode a test video source to VP8 muxed in an * WebM container. * */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #ifdef HAVE_VP8_ENCODER #include #include #include "gstvp8utils.h" #include "gstvp8enc.h" GST_DEBUG_CATEGORY_STATIC (gst_vp8enc_debug); #define GST_CAT_DEFAULT gst_vp8enc_debug typedef struct { vpx_image_t *image; GList *invisible; } GstVP8EncCoderHook; static void _gst_mini_object_unref0 (GstMiniObject * obj) { if (obj) gst_mini_object_unref (obj); } static void gst_vp8_enc_coder_hook_free (GstVP8EncCoderHook * hook) { if (hook->image) g_slice_free (vpx_image_t, hook->image); g_list_foreach (hook->invisible, (GFunc) _gst_mini_object_unref0, NULL); g_list_free (hook->invisible); g_slice_free (GstVP8EncCoderHook, hook); } #define DEFAULT_BITRATE 0 #define DEFAULT_MODE VPX_VBR #define DEFAULT_MIN_QUANTIZER 0 #define DEFAULT_MAX_QUANTIZER 63 #define DEFAULT_QUALITY 5 #define DEFAULT_ERROR_RESILIENT FALSE #define DEFAULT_MAX_LATENCY 10 #define DEFAULT_MAX_KEYFRAME_DISTANCE 60 #define DEFAULT_SPEED 0 #define DEFAULT_THREADS 1 #define DEFAULT_MULTIPASS_MODE VPX_RC_ONE_PASS #define DEFAULT_MULTIPASS_CACHE_FILE NULL #define DEFAULT_AUTO_ALT_REF_FRAMES FALSE enum { PROP_0, PROP_BITRATE, PROP_MODE, PROP_MIN_QUANTIZER, PROP_MAX_QUANTIZER, PROP_QUALITY, PROP_ERROR_RESILIENT, PROP_MAX_LATENCY, PROP_MAX_KEYFRAME_DISTANCE, PROP_SPEED, PROP_THREADS, PROP_MULTIPASS_MODE, PROP_MULTIPASS_CACHE_FILE, PROP_AUTO_ALT_REF_FRAMES }; #define GST_VP8_ENC_MODE_TYPE (gst_vp8_enc_mode_get_type()) static GType gst_vp8_enc_mode_get_type (void) { static const GEnumValue values[] = { {VPX_VBR, "Variable Bit Rate (VBR) mode", "vbr"}, {VPX_CBR, "Constant Bit Rate (CBR) mode", "cbr"}, {0, NULL, NULL} }; static volatile GType id = 0; if (g_once_init_enter ((gsize *) & id)) { GType _id; _id = g_enum_register_static ("GstVP8EncMode", values); g_once_init_leave ((gsize *) & id, _id); } return id; } #define GST_VP8_ENC_MULTIPASS_MODE_TYPE (gst_vp8_enc_multipass_mode_get_type()) static GType gst_vp8_enc_multipass_mode_get_type (void) { static const GEnumValue values[] = { {VPX_RC_ONE_PASS, "One pass encoding (default)", "one-pass"}, {VPX_RC_FIRST_PASS, "First pass of multipass encoding", "first-pass"}, {VPX_RC_LAST_PASS, "Last pass of multipass encoding", "last-pass"}, {0, NULL, NULL} }; static volatile GType id = 0; if (g_once_init_enter ((gsize *) & id)) { GType _id; _id = g_enum_register_static ("GstVP8EncMultipassMode", values); g_once_init_leave ((gsize *) & id, _id); } return id; } static void gst_vp8_enc_finalize (GObject * object); static void gst_vp8_enc_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_vp8_enc_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static gboolean gst_vp8_enc_start (GstBaseVideoEncoder * encoder); static gboolean gst_vp8_enc_stop (GstBaseVideoEncoder * encoder); static gboolean gst_vp8_enc_set_format (GstBaseVideoEncoder * base_video_encoder, GstVideoState * state); static gboolean gst_vp8_enc_finish (GstBaseVideoEncoder * base_video_encoder); static GstFlowReturn gst_vp8_enc_handle_frame (GstBaseVideoEncoder * base_video_encoder, GstVideoFrame * frame); static GstFlowReturn gst_vp8_enc_shape_output (GstBaseVideoEncoder * encoder, GstVideoFrame * frame); static gboolean gst_vp8_enc_sink_event (GstBaseVideoEncoder * base_video_encoder, GstEvent * event); static GstCaps *gst_vp8_enc_get_caps (GstBaseVideoEncoder * base_video_encoder); static GstStaticPadTemplate gst_vp8_enc_sink_template = GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420")) ); static GstStaticPadTemplate gst_vp8_enc_src_template = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS ("video/x-vp8") ); static void do_init (GType vp8enc_type) { static const GInterfaceInfo tag_setter_info = { NULL, NULL, NULL }; const GInterfaceInfo preset_interface_info = { NULL, /* interface_init */ NULL, /* interface_finalize */ NULL /* interface_data */ }; g_type_add_interface_static (vp8enc_type, GST_TYPE_TAG_SETTER, &tag_setter_info); g_type_add_interface_static (vp8enc_type, GST_TYPE_PRESET, &preset_interface_info); } GST_BOILERPLATE_FULL (GstVP8Enc, gst_vp8_enc, GstBaseVideoEncoder, GST_TYPE_BASE_VIDEO_ENCODER, do_init); static void gst_vp8_enc_base_init (gpointer g_class) { GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&gst_vp8_enc_src_template)); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&gst_vp8_enc_sink_template)); gst_element_class_set_details_simple (element_class, "On2 VP8 Encoder", "Codec/Encoder/Video", "Encode VP8 video streams", "David Schleef "); } static void gst_vp8_enc_class_init (GstVP8EncClass * klass) { GObjectClass *gobject_class; GstBaseVideoEncoderClass *base_video_encoder_class; gobject_class = G_OBJECT_CLASS (klass); base_video_encoder_class = GST_BASE_VIDEO_ENCODER_CLASS (klass); gobject_class->set_property = gst_vp8_enc_set_property; gobject_class->get_property = gst_vp8_enc_get_property; gobject_class->finalize = gst_vp8_enc_finalize; base_video_encoder_class->start = gst_vp8_enc_start; base_video_encoder_class->stop = gst_vp8_enc_stop; base_video_encoder_class->handle_frame = gst_vp8_enc_handle_frame; base_video_encoder_class->set_format = gst_vp8_enc_set_format; base_video_encoder_class->finish = gst_vp8_enc_finish; base_video_encoder_class->shape_output = gst_vp8_enc_shape_output; base_video_encoder_class->event = gst_vp8_enc_sink_event; base_video_encoder_class->get_caps = gst_vp8_enc_get_caps; g_object_class_install_property (gobject_class, PROP_BITRATE, g_param_spec_int ("bitrate", "Bit rate", "Bit rate (in bits/sec)", 0, 1000000000, DEFAULT_BITRATE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_MODE, g_param_spec_enum ("mode", "Mode", "Mode", GST_VP8_ENC_MODE_TYPE, DEFAULT_MODE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_MIN_QUANTIZER, g_param_spec_int ("min-quantizer", "Minimum quantizer", "Minimum (best) quantizer", 0, 63, DEFAULT_MIN_QUANTIZER, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_MAX_QUANTIZER, g_param_spec_int ("max-quantizer", "Maximum quantizer", "Maximum (worst) quantizer", 0, 63, DEFAULT_MAX_QUANTIZER, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_QUALITY, g_param_spec_double ("quality", "Quality", "Quality. This parameter sets a constant quantizer.", 0, 10.0, DEFAULT_QUALITY, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_ERROR_RESILIENT, g_param_spec_boolean ("error-resilient", "Error Resilient", "Encode streams that are error resilient", DEFAULT_ERROR_RESILIENT, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_MAX_LATENCY, g_param_spec_int ("max-latency", "Max latency", "Number of frames in encoder queue", 0, 25, DEFAULT_MAX_LATENCY, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_MAX_KEYFRAME_DISTANCE, g_param_spec_int ("max-keyframe-distance", "Maximum Key frame distance", "Maximum distance between key frames", 0, 9999, DEFAULT_MAX_KEYFRAME_DISTANCE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_SPEED, g_param_spec_int ("speed", "Speed", "Speed", 0, 7, DEFAULT_SPEED, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_THREADS, g_param_spec_int ("threads", "Threads", "Threads", 1, 64, DEFAULT_THREADS, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_MULTIPASS_MODE, g_param_spec_enum ("multipass-mode", "Multipass Mode", "Multipass encode mode", GST_VP8_ENC_MULTIPASS_MODE_TYPE, DEFAULT_MULTIPASS_MODE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_MULTIPASS_CACHE_FILE, g_param_spec_string ("multipass-cache-file", "Multipass Cache File", "Multipass cache file", DEFAULT_MULTIPASS_CACHE_FILE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); g_object_class_install_property (gobject_class, PROP_AUTO_ALT_REF_FRAMES, g_param_spec_boolean ("auto-alt-ref-frames", "Auto Alt Ref Frames", "Automatically create alternative reference frames", DEFAULT_AUTO_ALT_REF_FRAMES, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); GST_DEBUG_CATEGORY_INIT (gst_vp8enc_debug, "vp8enc", 0, "VP8 Encoder"); } static void gst_vp8_enc_init (GstVP8Enc * gst_vp8_enc, GstVP8EncClass * klass) { GST_DEBUG_OBJECT (gst_vp8_enc, "init"); gst_vp8_enc->bitrate = DEFAULT_BITRATE; gst_vp8_enc->min_quantizer = DEFAULT_MIN_QUANTIZER; gst_vp8_enc->max_quantizer = DEFAULT_MAX_QUANTIZER; gst_vp8_enc->mode = DEFAULT_MODE; gst_vp8_enc->quality = DEFAULT_QUALITY; gst_vp8_enc->error_resilient = DEFAULT_ERROR_RESILIENT; gst_vp8_enc->max_latency = DEFAULT_MAX_LATENCY; gst_vp8_enc->max_keyframe_distance = DEFAULT_MAX_KEYFRAME_DISTANCE; gst_vp8_enc->multipass_mode = DEFAULT_MULTIPASS_MODE; gst_vp8_enc->multipass_cache_file = DEFAULT_MULTIPASS_CACHE_FILE; gst_vp8_enc->auto_alt_ref_frames = DEFAULT_AUTO_ALT_REF_FRAMES; } static void gst_vp8_enc_finalize (GObject * object) { GstVP8Enc *gst_vp8_enc; GST_DEBUG_OBJECT (object, "finalize"); g_return_if_fail (GST_IS_VP8_ENC (object)); gst_vp8_enc = GST_VP8_ENC (object); g_free (gst_vp8_enc->multipass_cache_file); gst_vp8_enc->multipass_cache_file = NULL; G_OBJECT_CLASS (parent_class)->finalize (object); } static void gst_vp8_enc_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstVP8Enc *gst_vp8_enc; g_return_if_fail (GST_IS_VP8_ENC (object)); gst_vp8_enc = GST_VP8_ENC (object); GST_DEBUG_OBJECT (object, "gst_vp8_enc_set_property"); switch (prop_id) { case PROP_BITRATE: gst_vp8_enc->bitrate = g_value_get_int (value); break; case PROP_MODE: gst_vp8_enc->mode = g_value_get_enum (value); break; case PROP_MIN_QUANTIZER: gst_vp8_enc->min_quantizer = g_value_get_int (value); break; case PROP_MAX_QUANTIZER: gst_vp8_enc->max_quantizer = g_value_get_int (value); break; case PROP_QUALITY: gst_vp8_enc->quality = g_value_get_double (value); break; case PROP_ERROR_RESILIENT: gst_vp8_enc->error_resilient = g_value_get_boolean (value); break; case PROP_MAX_LATENCY: gst_vp8_enc->max_latency = g_value_get_int (value); break; case PROP_MAX_KEYFRAME_DISTANCE: gst_vp8_enc->max_keyframe_distance = g_value_get_int (value); break; case PROP_SPEED: gst_vp8_enc->speed = g_value_get_int (value); break; case PROP_THREADS: gst_vp8_enc->threads = g_value_get_int (value); break; case PROP_MULTIPASS_MODE: gst_vp8_enc->multipass_mode = g_value_get_enum (value); break; case PROP_MULTIPASS_CACHE_FILE: if (gst_vp8_enc->multipass_cache_file) g_free (gst_vp8_enc->multipass_cache_file); gst_vp8_enc->multipass_cache_file = g_value_dup_string (value); break; case PROP_AUTO_ALT_REF_FRAMES: gst_vp8_enc->auto_alt_ref_frames = g_value_get_boolean (value); break; default: break; } } static void gst_vp8_enc_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstVP8Enc *gst_vp8_enc; g_return_if_fail (GST_IS_VP8_ENC (object)); gst_vp8_enc = GST_VP8_ENC (object); switch (prop_id) { case PROP_BITRATE: g_value_set_int (value, gst_vp8_enc->bitrate); break; case PROP_MODE: g_value_set_enum (value, gst_vp8_enc->mode); break; case PROP_MIN_QUANTIZER: g_value_set_int (value, gst_vp8_enc->min_quantizer); break; case PROP_MAX_QUANTIZER: g_value_set_int (value, gst_vp8_enc->max_quantizer); break; case PROP_QUALITY: g_value_set_double (value, gst_vp8_enc->quality); break; case PROP_ERROR_RESILIENT: g_value_set_boolean (value, gst_vp8_enc->error_resilient); break; case PROP_MAX_LATENCY: g_value_set_int (value, gst_vp8_enc->max_latency); break; case PROP_MAX_KEYFRAME_DISTANCE: g_value_set_int (value, gst_vp8_enc->max_keyframe_distance); break; case PROP_SPEED: g_value_set_int (value, gst_vp8_enc->speed); break; case PROP_THREADS: g_value_set_int (value, gst_vp8_enc->threads); break; case PROP_MULTIPASS_MODE: g_value_set_enum (value, gst_vp8_enc->multipass_mode); break; case PROP_MULTIPASS_CACHE_FILE: g_value_set_string (value, gst_vp8_enc->multipass_cache_file); break; case PROP_AUTO_ALT_REF_FRAMES: g_value_set_boolean (value, gst_vp8_enc->auto_alt_ref_frames); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static gboolean gst_vp8_enc_start (GstBaseVideoEncoder * base_video_encoder) { GST_DEBUG_OBJECT (base_video_encoder, "start"); return TRUE; } static gboolean gst_vp8_enc_stop (GstBaseVideoEncoder * base_video_encoder) { GstVP8Enc *encoder; GST_DEBUG_OBJECT (base_video_encoder, "stop"); encoder = GST_VP8_ENC (base_video_encoder); if (encoder->inited) { vpx_codec_destroy (&encoder->encoder); encoder->inited = FALSE; } if (encoder->first_pass_cache_content) { g_byte_array_free (encoder->first_pass_cache_content, TRUE); encoder->first_pass_cache_content = NULL; } if (encoder->last_pass_cache_content.buf) { g_free (encoder->last_pass_cache_content.buf); encoder->last_pass_cache_content.buf = NULL; encoder->last_pass_cache_content.sz = 0; } gst_tag_setter_reset_tags (GST_TAG_SETTER (encoder)); return TRUE; } static gboolean gst_vp8_enc_set_format (GstBaseVideoEncoder * base_video_encoder, GstVideoState * state) { GstVP8Enc *encoder; vpx_codec_enc_cfg_t cfg; vpx_codec_err_t status; vpx_image_t *image; guint8 *data = NULL; encoder = GST_VP8_ENC (base_video_encoder); GST_DEBUG_OBJECT (base_video_encoder, "set_format"); if (encoder->inited) { GST_DEBUG_OBJECT (base_video_encoder, "refusing renegotiation"); return FALSE; } status = vpx_codec_enc_config_default (&vpx_codec_vp8_cx_algo, &cfg, 0); if (status != VPX_CODEC_OK) { GST_ELEMENT_ERROR (encoder, LIBRARY, INIT, ("Failed to get default encoder configuration"), ("%s", gst_vpx_error_name (status))); return FALSE; } cfg.g_w = state->width; cfg.g_h = state->height; cfg.g_timebase.num = state->fps_d; cfg.g_timebase.den = state->fps_n; cfg.g_error_resilient = encoder->error_resilient; cfg.g_lag_in_frames = encoder->max_latency; cfg.g_threads = encoder->threads; cfg.rc_end_usage = encoder->mode; /* Standalone qp-min do not make any sence, with bitrate=0 and qp-min=1 * encoder will use only default qp-max=63. Also this will make * worst possbile quality. */ if (encoder->bitrate != DEFAULT_BITRATE || encoder->max_quantizer != DEFAULT_MAX_QUANTIZER) { cfg.rc_target_bitrate = encoder->bitrate / 1000; cfg.rc_min_quantizer = encoder->min_quantizer; cfg.rc_max_quantizer = encoder->max_quantizer; } else { cfg.rc_min_quantizer = (gint) (63 - encoder->quality * 6.2); cfg.rc_max_quantizer = (gint) (63 - encoder->quality * 6.2); cfg.rc_target_bitrate = encoder->bitrate; } cfg.kf_mode = VPX_KF_AUTO; cfg.kf_min_dist = 0; cfg.kf_max_dist = encoder->max_keyframe_distance; cfg.g_pass = encoder->multipass_mode; if (encoder->multipass_mode == VPX_RC_FIRST_PASS) { encoder->first_pass_cache_content = g_byte_array_sized_new (4096); } else if (encoder->multipass_mode == VPX_RC_LAST_PASS) { GError *err = NULL; if (!encoder->multipass_cache_file) { GST_ELEMENT_ERROR (encoder, RESOURCE, OPEN_READ, ("No multipass cache file provided"), (NULL)); return FALSE; } if (!g_file_get_contents (encoder->multipass_cache_file, (gchar **) & encoder->last_pass_cache_content.buf, &encoder->last_pass_cache_content.sz, &err)) { GST_ELEMENT_ERROR (encoder, RESOURCE, OPEN_READ, ("Failed to read multipass cache file provided"), ("%s", err->message)); g_error_free (err); return FALSE; } cfg.rc_twopass_stats_in = encoder->last_pass_cache_content; } status = vpx_codec_enc_init (&encoder->encoder, &vpx_codec_vp8_cx_algo, &cfg, 0); if (status != VPX_CODEC_OK) { GST_ELEMENT_ERROR (encoder, LIBRARY, INIT, ("Failed to initialize encoder"), ("%s", gst_vpx_error_name (status))); return FALSE; } /* FIXME move this to a set_speed() function */ status = vpx_codec_control (&encoder->encoder, VP8E_SET_CPUUSED, (encoder->speed == 0) ? 0 : (encoder->speed - 1)); if (status != VPX_CODEC_OK) { GST_WARNING_OBJECT (encoder, "Failed to set VP8E_SET_CPUUSED to 0: %s", gst_vpx_error_name (status)); } status = vpx_codec_control (&encoder->encoder, VP8E_SET_ENABLEAUTOALTREF, (encoder->auto_alt_ref_frames ? 1 : 0)); if (status != VPX_CODEC_OK) { GST_WARNING_OBJECT (encoder, "Failed to set VP8E_ENABLEAUTOALTREF to %d: %s", (encoder->auto_alt_ref_frames ? 1 : 0), gst_vpx_error_name (status)); } gst_base_video_encoder_set_latency (base_video_encoder, 0, gst_util_uint64_scale (encoder->max_latency, state->fps_d * GST_SECOND, state->fps_n)); encoder->inited = TRUE; /* prepare cached image buffer setup */ image = &encoder->image; memset (image, 0, sizeof (image)); image->fmt = VPX_IMG_FMT_I420; image->bps = 12; image->x_chroma_shift = image->y_chroma_shift = 1; image->w = image->d_w = state->width; image->h = image->d_h = state->height; image->stride[VPX_PLANE_Y] = gst_video_format_get_row_stride (state->format, 0, state->width); image->stride[VPX_PLANE_U] = gst_video_format_get_row_stride (state->format, 1, state->width); image->stride[VPX_PLANE_V] = gst_video_format_get_row_stride (state->format, 2, state->width); image->planes[VPX_PLANE_Y] = data + gst_video_format_get_component_offset (state->format, 0, state->width, state->height); image->planes[VPX_PLANE_U] = data + gst_video_format_get_component_offset (state->format, 1, state->width, state->height); image->planes[VPX_PLANE_V] = data + gst_video_format_get_component_offset (state->format, 2, state->width, state->height); return TRUE; } static GstCaps * gst_vp8_enc_get_caps (GstBaseVideoEncoder * base_video_encoder) { GstCaps *caps; const GstVideoState *state; GstTagList *tags = NULL; const GstTagList *iface_tags; GstBuffer *stream_hdr, *vorbiscomment; guint8 *data; GstStructure *s; GValue array = { 0 }; GValue value = { 0 }; state = gst_base_video_encoder_get_state (base_video_encoder); caps = gst_caps_new_simple ("video/x-vp8", "width", G_TYPE_INT, state->width, "height", G_TYPE_INT, state->height, "framerate", GST_TYPE_FRACTION, state->fps_n, state->fps_d, "pixel-aspect-ratio", GST_TYPE_FRACTION, state->par_n, state->par_d, NULL); s = gst_caps_get_structure (caps, 0); /* put buffers in a fixed list */ g_value_init (&array, GST_TYPE_ARRAY); g_value_init (&value, GST_TYPE_BUFFER); /* Create Ogg stream-info */ stream_hdr = gst_buffer_new_and_alloc (26); data = GST_BUFFER_DATA (stream_hdr); GST_WRITE_UINT8 (data, 0x4F); GST_WRITE_UINT32_BE (data + 1, 0x56503830); /* "VP80" */ GST_WRITE_UINT8 (data + 5, 0x01); /* stream info header */ GST_WRITE_UINT8 (data + 6, 1); /* Major version 1 */ GST_WRITE_UINT8 (data + 7, 0); /* Minor version 0 */ GST_WRITE_UINT16_BE (data + 8, state->width); GST_WRITE_UINT16_BE (data + 10, state->height); GST_WRITE_UINT24_BE (data + 12, state->par_n); GST_WRITE_UINT24_BE (data + 15, state->par_d); GST_WRITE_UINT32_BE (data + 18, state->fps_n); GST_WRITE_UINT32_BE (data + 22, state->fps_d); GST_BUFFER_FLAG_SET (stream_hdr, GST_BUFFER_FLAG_IN_CAPS); gst_value_set_buffer (&value, stream_hdr); gst_value_array_append_value (&array, &value); g_value_unset (&value); gst_buffer_unref (stream_hdr); iface_tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (base_video_encoder)); if (iface_tags) { vorbiscomment = gst_tag_list_to_vorbiscomment_buffer ((iface_tags) ? iface_tags : tags, (const guint8 *) "OVP80\2 ", 7, "Encoded with GStreamer vp8enc " PACKAGE_VERSION); GST_BUFFER_FLAG_SET (vorbiscomment, GST_BUFFER_FLAG_IN_CAPS); g_value_init (&value, GST_TYPE_BUFFER); gst_value_set_buffer (&value, vorbiscomment); gst_value_array_append_value (&array, &value); g_value_unset (&value); gst_buffer_unref (vorbiscomment); } gst_structure_set_value (s, "streamheader", &array); g_value_unset (&array); return caps; } static GstFlowReturn gst_vp8_enc_process (GstVP8Enc * encoder) { vpx_codec_iter_t iter = NULL; const vpx_codec_cx_pkt_t *pkt; GstBaseVideoEncoder *base_video_encoder; GstVP8EncCoderHook *hook; GstVideoFrame *frame; GstFlowReturn ret = GST_FLOW_OK; base_video_encoder = GST_BASE_VIDEO_ENCODER (encoder); pkt = vpx_codec_get_cx_data (&encoder->encoder, &iter); while (pkt != NULL) { GstBuffer *buffer; gboolean invisible; GST_DEBUG_OBJECT (encoder, "packet %u type %d", (guint) pkt->data.frame.sz, pkt->kind); if (pkt->kind == VPX_CODEC_STATS_PKT && encoder->multipass_mode == VPX_RC_FIRST_PASS) { GST_LOG_OBJECT (encoder, "handling STATS packet"); g_byte_array_append (encoder->first_pass_cache_content, pkt->data.twopass_stats.buf, pkt->data.twopass_stats.sz); frame = gst_base_video_encoder_get_oldest_frame (base_video_encoder); if (frame != NULL) { buffer = gst_buffer_new (); GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_PREROLL); frame->src_buffer = buffer; gst_base_video_encoder_finish_frame (base_video_encoder, frame); } pkt = vpx_codec_get_cx_data (&encoder->encoder, &iter); continue; } else if (pkt->kind != VPX_CODEC_CX_FRAME_PKT) { GST_LOG_OBJECT (encoder, "non frame pkt: %d", pkt->kind); pkt = vpx_codec_get_cx_data (&encoder->encoder, &iter); continue; } invisible = (pkt->data.frame.flags & VPX_FRAME_IS_INVISIBLE) != 0; frame = gst_base_video_encoder_get_oldest_frame (base_video_encoder); g_assert (frame != NULL); frame->is_sync_point = (pkt->data.frame.flags & VPX_FRAME_IS_KEY) != 0; hook = frame->coder_hook; buffer = gst_buffer_new_and_alloc (pkt->data.frame.sz); memcpy (GST_BUFFER_DATA (buffer), pkt->data.frame.buf, pkt->data.frame.sz); if (hook->image) g_slice_free (vpx_image_t, hook->image); hook->image = NULL; if (invisible) { hook->invisible = g_list_append (hook->invisible, buffer); } else { frame->src_buffer = buffer; ret = gst_base_video_encoder_finish_frame (base_video_encoder, frame); } pkt = vpx_codec_get_cx_data (&encoder->encoder, &iter); } return ret; } static gboolean gst_vp8_enc_finish (GstBaseVideoEncoder * base_video_encoder) { GstVP8Enc *encoder; int flags = 0; vpx_codec_err_t status; GST_DEBUG_OBJECT (base_video_encoder, "finish"); encoder = GST_VP8_ENC (base_video_encoder); status = vpx_codec_encode (&encoder->encoder, NULL, encoder->n_frames, 1, flags, 0); if (status != 0) { GST_ERROR_OBJECT (encoder, "encode returned %d %s", status, gst_vpx_error_name (status)); return FALSE; } /* dispatch remaining frames */ gst_vp8_enc_process (encoder); if (encoder->multipass_mode == VPX_RC_FIRST_PASS && encoder->multipass_cache_file) { GError *err = NULL; if (!g_file_set_contents (encoder->multipass_cache_file, (const gchar *) encoder->first_pass_cache_content->data, encoder->first_pass_cache_content->len, &err)) { GST_ELEMENT_ERROR (encoder, RESOURCE, WRITE, (NULL), ("Failed to write multipass cache file: %s", err->message)); g_error_free (err); } } return TRUE; } static vpx_image_t * gst_vp8_enc_buffer_to_image (GstVP8Enc * enc, GstBuffer * buffer) { vpx_image_t *image = g_slice_new (vpx_image_t); guint8 *data = GST_BUFFER_DATA (buffer); const GstVideoState *state; state = gst_base_video_encoder_get_state (GST_BASE_VIDEO_ENCODER (enc)); memcpy (image, &enc->image, sizeof (*image)); image->img_data = data; image->planes[VPX_PLANE_Y] += (data - (guint8 *) NULL); image->planes[VPX_PLANE_U] += (data - (guint8 *) NULL); image->planes[VPX_PLANE_V] += (data - (guint8 *) NULL); return image; } static GstFlowReturn gst_vp8_enc_handle_frame (GstBaseVideoEncoder * base_video_encoder, GstVideoFrame * frame) { GstVP8Enc *encoder; const GstVideoState *state; vpx_codec_err_t status; int flags = 0; vpx_image_t *image; GstVP8EncCoderHook *hook; int quality; GST_DEBUG_OBJECT (base_video_encoder, "handle_frame"); encoder = GST_VP8_ENC (base_video_encoder); state = gst_base_video_encoder_get_state (base_video_encoder); encoder->n_frames++; GST_DEBUG_OBJECT (base_video_encoder, "size %d %d", state->width, state->height); image = gst_vp8_enc_buffer_to_image (encoder, frame->sink_buffer); hook = g_slice_new0 (GstVP8EncCoderHook); hook->image = image; frame->coder_hook = hook; frame->coder_hook_destroy_notify = (GDestroyNotify) gst_vp8_enc_coder_hook_free; if (frame->force_keyframe) { flags |= VPX_EFLAG_FORCE_KF; } quality = (encoder->speed == 0) ? VPX_DL_BEST_QUALITY : VPX_DL_GOOD_QUALITY; status = vpx_codec_encode (&encoder->encoder, image, encoder->n_frames, 1, flags, quality); if (status != 0) { GST_ELEMENT_ERROR (encoder, LIBRARY, ENCODE, ("Failed to encode frame"), ("%s", gst_vpx_error_name (status))); g_slice_free (GstVP8EncCoderHook, hook); frame->coder_hook = NULL; g_slice_free (vpx_image_t, image); return FALSE; } return gst_vp8_enc_process (encoder); } static guint64 _to_granulepos (guint64 frame_end_number, guint inv_count, guint keyframe_dist) { guint64 granulepos; guint inv; inv = (inv_count == 0) ? 0x3 : inv_count - 1; granulepos = (frame_end_number << 32) | (inv << 30) | (keyframe_dist << 3); return granulepos; } static GstFlowReturn gst_vp8_enc_shape_output (GstBaseVideoEncoder * base_video_encoder, GstVideoFrame * frame) { GstVP8Enc *encoder; GstBuffer *buf; const GstVideoState *state; GstFlowReturn ret; GstVP8EncCoderHook *hook = frame->coder_hook; GList *l; gint inv_count; GST_DEBUG_OBJECT (base_video_encoder, "shape_output"); encoder = GST_VP8_ENC (base_video_encoder); state = gst_base_video_encoder_get_state (base_video_encoder); g_assert (hook != NULL); for (inv_count = 0, l = hook->invisible; l; inv_count++, l = l->next) { buf = l->data; l->data = NULL; if (l == hook->invisible && frame->is_sync_point) { GST_BUFFER_FLAG_UNSET (buf, GST_BUFFER_FLAG_DELTA_UNIT); encoder->keyframe_distance = 0; } else { GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT); encoder->keyframe_distance++; } GST_BUFFER_TIMESTAMP (buf) = GST_BUFFER_TIMESTAMP (frame->src_buffer); GST_BUFFER_DURATION (buf) = 0; GST_BUFFER_OFFSET_END (buf) = _to_granulepos (frame->presentation_frame_number + 1, inv_count, encoder->keyframe_distance); GST_BUFFER_OFFSET (buf) = gst_util_uint64_scale (frame->presentation_frame_number + 1, GST_SECOND * state->fps_d, state->fps_n); gst_buffer_set_caps (buf, GST_PAD_CAPS (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder))); ret = gst_pad_push (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder), buf); if (ret != GST_FLOW_OK) { GST_WARNING_OBJECT (encoder, "flow error %d", ret); goto done; } } buf = frame->src_buffer; frame->src_buffer = NULL; if (!hook->invisible && frame->is_sync_point) { GST_BUFFER_FLAG_UNSET (buf, GST_BUFFER_FLAG_DELTA_UNIT); encoder->keyframe_distance = 0; } else { GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT); encoder->keyframe_distance++; } GST_BUFFER_OFFSET_END (buf) = _to_granulepos (frame->presentation_frame_number + 1, 0, encoder->keyframe_distance); GST_BUFFER_OFFSET (buf) = gst_util_uint64_scale (frame->presentation_frame_number + 1, GST_SECOND * state->fps_d, state->fps_n); ret = gst_pad_push (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_encoder), buf); if (ret != GST_FLOW_OK) { GST_WARNING_OBJECT (encoder, "flow error %d", ret); } done: return ret; } static gboolean gst_vp8_enc_sink_event (GstBaseVideoEncoder * benc, GstEvent * event) { GstVP8Enc *enc = GST_VP8_ENC (benc); if (GST_EVENT_TYPE (event) == GST_EVENT_TAG) { GstTagList *list; GstTagSetter *setter = GST_TAG_SETTER (enc); const GstTagMergeMode mode = gst_tag_setter_get_tag_merge_mode (setter); gst_event_parse_tag (event, &list); gst_tag_setter_merge_tags (setter, list, mode); } /* just peeked, baseclass handles the rest */ return FALSE; } #endif /* HAVE_VP8_ENCODER */