/* GStreamer H264 encoder plugin * Copyright (C) 2005 Michal Benes * Copyright (C) 2005 Josef Zlomek * Copyright (C) 2008 Mark Nauwelaerts * Copyright (C) 2016 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., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ /** * SECTION:element-x264enc * @title: x264enc * @see_also: faac * * This element encodes raw video into H264 compressed data, * also otherwise known as MPEG-4 AVC (Advanced Video Codec). * * The #GstX264Enc:pass property controls the type of encoding. In case of Constant * Bitrate Encoding (actually ABR), the #GstX264Enc:bitrate will determine the quality * of the encoding. This will similarly be the case if this target bitrate * is to obtained in multiple (2 or 3) pass encoding. * Alternatively, one may choose to perform Constant Quantizer or Quality encoding, * in which case the #GstX264Enc:quantizer property controls much of the outcome, in that case #GstX264Enc:bitrate is the maximum bitrate. * * The H264 profile that is eventually used depends on a few settings. * If #GstX264Enc:dct8x8 is enabled, then High profile is used. * Otherwise, if #GstX264Enc:cabac entropy coding is enabled or #GstX264Enc:bframes * are allowed, then Main Profile is in effect, and otherwise Baseline profile * applies. The high profile is imposed by default, * which is fine for most software players and settings, * but in some cases (e.g. hardware platforms) a more restricted profile/level * may be necessary. The recommended way to set a profile is to set it in the * downstream caps. * * If a preset/tuning are specified then these will define the default values and * the property defaults will be ignored. After this the option-string property is * applied, followed by the user-set properties, fast first pass restrictions and * finally the profile restrictions. * * > Some settings, including the default settings, may lead to quite * > some latency (i.e. frame buffering) in the encoder. This may cause problems * > with pipeline stalling in non-trivial pipelines, because the encoder latency * > is often considerably higher than the default size of a simple queue * > element. Such problems are caused by one of the queues in the other * > non-x264enc streams/branches filling up and blocking upstream. They can * > be fixed by relaxing the default time/size/buffer limits on the queue * > elements in the non-x264 branches, or using a (single) multiqueue element * > for all branches. Also see the last example below. You can also work around * > this problem by setting the tune=zerolatency property, but this will affect * > overall encoding quality so may not be appropriate for your use case. * * ## Example pipeline * |[ * gst-launch-1.0 -v videotestsrc num-buffers=1000 ! x264enc qp-min=18 ! \ * avimux ! filesink location=videotestsrc.avi * ]| This example pipeline will encode a test video source to H264 muxed in an * AVI container, while ensuring a sane minimum quantization factor to avoid * some (excessive) waste. You should ideally never put H264 into an AVI * container (or really anything else, for that matter) - use Matroska or * MP4/QuickTime or MPEG-TS instead. * |[ * gst-launch-1.0 -v videotestsrc num-buffers=1000 ! x264enc pass=quant ! \ * matroskamux ! filesink location=videotestsrc.mkv * ]| This example pipeline will encode a test video source to H264 using fixed * quantization, and muxes it in a Matroska container. * |[ * gst-launch-1.0 -v videotestsrc num-buffers=1000 ! x264enc pass=5 quantizer=25 speed-preset=6 ! video/x-h264, profile=baseline ! \ * qtmux ! filesink location=videotestsrc.mov * ]| This example pipeline will encode a test video source to H264 using * constant quality at around Q25 using the 'medium' speed/quality preset and * restricting the options used so that the output is H.264 Baseline Profile * compliant and finally multiplexing the output in Quicktime mov format. * |[ * gst-launch-1.0 -v videotestsrc num-buffers=1000 ! tee name=t ! queue ! videoconvert ! autovideosink \ * t. ! queue ! x264enc rc-lookahead=5 ! fakesink * ]| This example pipeline will encode a test video source to H264 while * displaying the input material at the same time. As mentioned above, * specific settings are needed in this case to avoid pipeline stalling. * Depending on goals and context, other approaches are possible, e.g. * tune=zerolatency might be configured, or queue sizes increased. * */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include "gstx264enc.h" #include #include #include #include #include #include #include GST_DEBUG_CATEGORY_STATIC (x264_enc_debug); #define GST_CAT_DEFAULT x264_enc_debug struct _GstX264EncVTable { GModule *module; #if X264_BUILD < 153 const int *x264_bit_depth; #endif const int *x264_chroma_format; void (*x264_encoder_close) (x264_t *); int (*x264_encoder_delayed_frames) (x264_t *); int (*x264_encoder_encode) (x264_t *, x264_nal_t ** pp_nal, int *pi_nal, x264_picture_t * pic_in, x264_picture_t * pic_out); int (*x264_encoder_headers) (x264_t *, x264_nal_t ** pp_nal, int *pi_nal); void (*x264_encoder_intra_refresh) (x264_t *); int (*x264_encoder_maximum_delayed_frames) (x264_t *); x264_t *(*x264_encoder_open) (x264_param_t *); int (*x264_encoder_reconfig) (x264_t *, x264_param_t *); const x264_level_t (*x264_levels)[]; void (*x264_param_apply_fastfirstpass) (x264_param_t *); int (*x264_param_apply_profile) (x264_param_t *, const char *); int (*x264_param_default_preset) (x264_param_t *, const char *preset, const char *tune); int (*x264_param_parse) (x264_param_t *, const char *name, const char *value); }; static GstX264EncVTable default_vtable; static GstX264EncVTable *vtable_8bit = NULL, *vtable_10bit = NULL; #if X264_BUILD < 153 #define LOAD_SYMBOL(name) G_STMT_START { \ if (!g_module_symbol (module, #name, (gpointer *) &vtable->name)) { \ GST_ERROR ("Failed to load '" #name "' from '%s'", filename); \ goto error; \ } \ } G_STMT_END; #ifdef HAVE_X264_ADDITIONAL_LIBRARIES static GstX264EncVTable * load_x264 (const gchar * filename) { GModule *module; GstX264EncVTable *vtable; module = g_module_open (filename, G_MODULE_BIND_LOCAL); if (!module) { GST_ERROR ("Failed to load '%s'", filename); return NULL; } vtable = g_new0 (GstX264EncVTable, 1); vtable->module = module; if (!g_module_symbol (module, G_STRINGIFY (x264_encoder_open), (gpointer *) & vtable->x264_encoder_open)) { GST_ERROR ("Failed to load '" G_STRINGIFY (x264_encoder_open) "' from '%s'. Incompatible version?", filename); goto error; } LOAD_SYMBOL (x264_bit_depth); LOAD_SYMBOL (x264_chroma_format); LOAD_SYMBOL (x264_encoder_close); LOAD_SYMBOL (x264_encoder_delayed_frames); LOAD_SYMBOL (x264_encoder_encode); LOAD_SYMBOL (x264_encoder_headers); LOAD_SYMBOL (x264_encoder_intra_refresh); LOAD_SYMBOL (x264_encoder_maximum_delayed_frames); LOAD_SYMBOL (x264_encoder_reconfig); LOAD_SYMBOL (x264_levels); LOAD_SYMBOL (x264_param_apply_fastfirstpass); LOAD_SYMBOL (x264_param_apply_profile); LOAD_SYMBOL (x264_param_default_preset); LOAD_SYMBOL (x264_param_parse); return vtable; error: g_module_close (vtable->module); g_free (vtable); return NULL; } static void unload_x264 (GstX264EncVTable * vtable) { if (vtable->module) { g_module_close (vtable->module); g_free (vtable); } } #endif #undef LOAD_SYMBOL #endif static gboolean gst_x264_enc_add_x264_chroma_format (GstStructure * s, gboolean allow_420, gboolean allow_422, gboolean allow_444) { GValue fmts = G_VALUE_INIT; GValue fmt = G_VALUE_INIT; gboolean ret = FALSE; g_value_init (&fmts, GST_TYPE_LIST); g_value_init (&fmt, G_TYPE_STRING); if (vtable_8bit) { gint chroma_format = *vtable_8bit->x264_chroma_format; GST_INFO ("8-bit depth supported"); if ((chroma_format == 0 || chroma_format == X264_CSP_I444) && allow_444) { g_value_set_string (&fmt, "Y444"); gst_value_list_append_value (&fmts, &fmt); } if ((chroma_format == 0 || chroma_format == X264_CSP_I422) && allow_422) { g_value_set_string (&fmt, "Y42B"); gst_value_list_append_value (&fmts, &fmt); } if ((chroma_format == 0 || chroma_format == X264_CSP_I420) && allow_420) { g_value_set_string (&fmt, "I420"); gst_value_list_append_value (&fmts, &fmt); g_value_set_string (&fmt, "YV12"); gst_value_list_append_value (&fmts, &fmt); g_value_set_string (&fmt, "NV12"); gst_value_list_append_value (&fmts, &fmt); } } if (vtable_10bit) { gint chroma_format = *vtable_10bit->x264_chroma_format; GST_INFO ("10-bit depth supported"); if ((chroma_format == 0 || chroma_format == X264_CSP_I444) && allow_444) { if (G_BYTE_ORDER == G_LITTLE_ENDIAN) g_value_set_string (&fmt, "Y444_10LE"); else g_value_set_string (&fmt, "Y444_10BE"); gst_value_list_append_value (&fmts, &fmt); } if ((chroma_format == 0 || chroma_format == X264_CSP_I422) && allow_422) { if (G_BYTE_ORDER == G_LITTLE_ENDIAN) g_value_set_string (&fmt, "I422_10LE"); else g_value_set_string (&fmt, "I422_10BE"); gst_value_list_append_value (&fmts, &fmt); } if ((chroma_format == 0 || chroma_format == X264_CSP_I420) && allow_420) { if (G_BYTE_ORDER == G_LITTLE_ENDIAN) g_value_set_string (&fmt, "I420_10LE"); else g_value_set_string (&fmt, "I420_10BE"); gst_value_list_append_value (&fmts, &fmt); } } if (gst_value_list_get_size (&fmts) != 0) { gst_structure_take_value (s, "format", &fmts); ret = TRUE; } else { g_value_unset (&fmts); } g_value_unset (&fmt); return ret; } #if X264_BUILD < 153 static gboolean load_x264_libraries (void) { if (*default_vtable.x264_bit_depth == 8) { vtable_8bit = &default_vtable; } else if (*default_vtable.x264_bit_depth == 10) { vtable_10bit = &default_vtable; } #ifdef HAVE_X264_ADDITIONAL_LIBRARIES { gchar **libraries = g_strsplit (HAVE_X264_ADDITIONAL_LIBRARIES, ":", -1); gchar **p = libraries; while (*p && (!vtable_8bit || !vtable_10bit)) { GstX264EncVTable *vtable = load_x264 (*p); if (vtable) { if (!vtable_8bit && *vtable->x264_bit_depth == 8) { vtable_8bit = vtable; } else if (!vtable_10bit && *vtable->x264_bit_depth == 10) { vtable_10bit = vtable; } else { unload_x264 (vtable); } } p++; } g_strfreev (libraries); } #endif if (!vtable_8bit && !vtable_10bit) return FALSE; return TRUE; } #else /* X264_BUILD >= 153 */ static gboolean load_x264_libraries (void) { #if X264_BIT_DEPTH == 0 /* all */ vtable_8bit = &default_vtable; vtable_10bit = &default_vtable; #elif X264_BIT_DEPTH == 8 vtable_8bit = &default_vtable; #elif X264_BIT_DEPTH == 10 vtable_10bit = &default_vtable; #else #error "unexpected X264_BIT_DEPTH value" #endif #ifdef HAVE_X264_ADDITIONAL_LIBRARIES GST_WARNING ("Ignoring configured additional libraries %s, using libx264 " "version enabled for multiple bit depths", HAVE_X264_ADDITIONAL_LIBRARIES); #endif return TRUE; } #endif enum { ARG_0, ARG_THREADS, ARG_SLICED_THREADS, ARG_SYNC_LOOKAHEAD, ARG_PASS, ARG_QUANTIZER, ARG_MULTIPASS_CACHE_FILE, ARG_BYTE_STREAM, ARG_BITRATE, ARG_INTRA_REFRESH, ARG_VBV_BUF_CAPACITY, ARG_ME, ARG_SUBME, ARG_ANALYSE, ARG_DCT8x8, ARG_REF, ARG_BFRAMES, ARG_B_ADAPT, ARG_B_PYRAMID, ARG_WEIGHTB, ARG_SPS_ID, ARG_AU_NALU, ARG_TRELLIS, ARG_KEYINT_MAX, ARG_CABAC, ARG_QP_MIN, ARG_QP_MAX, ARG_QP_STEP, ARG_IP_FACTOR, ARG_PB_FACTOR, ARG_RC_MB_TREE, ARG_RC_LOOKAHEAD, ARG_NR, ARG_INTERLACED, ARG_OPTION_STRING, ARG_SPEED_PRESET, ARG_PSY_TUNE, ARG_TUNE, ARG_FRAME_PACKING, ARG_INSERT_VUI, }; #define ARG_THREADS_DEFAULT 0 /* 0 means 'auto' which is 1.5x number of CPU cores */ #define ARG_PASS_DEFAULT 0 #define ARG_QUANTIZER_DEFAULT 21 #define ARG_MULTIPASS_CACHE_FILE_DEFAULT "x264.log" #define ARG_BYTE_STREAM_DEFAULT FALSE #define ARG_BITRATE_DEFAULT (2 * 1024) #define ARG_VBV_BUF_CAPACITY_DEFAULT 600 #define ARG_ME_DEFAULT X264_ME_HEX #define ARG_SUBME_DEFAULT 1 #define ARG_ANALYSE_DEFAULT 0 #define ARG_DCT8x8_DEFAULT FALSE #define ARG_REF_DEFAULT 1 #define ARG_BFRAMES_DEFAULT 0 #define ARG_B_ADAPT_DEFAULT TRUE #define ARG_B_PYRAMID_DEFAULT FALSE #define ARG_WEIGHTB_DEFAULT FALSE #define ARG_SPS_ID_DEFAULT 0 #define ARG_AU_NALU_DEFAULT TRUE #define ARG_TRELLIS_DEFAULT TRUE #define ARG_KEYINT_MAX_DEFAULT 0 #define ARG_CABAC_DEFAULT TRUE #define ARG_QP_MIN_DEFAULT 10 #define ARG_QP_MAX_DEFAULT 51 #define ARG_QP_STEP_DEFAULT 4 #define ARG_IP_FACTOR_DEFAULT 1.4 #define ARG_PB_FACTOR_DEFAULT 1.3 #define ARG_NR_DEFAULT 0 #define ARG_INTERLACED_DEFAULT FALSE #define ARG_SLICED_THREADS_DEFAULT FALSE #define ARG_SYNC_LOOKAHEAD_DEFAULT -1 #define ARG_RC_MB_TREE_DEFAULT TRUE #define ARG_RC_LOOKAHEAD_DEFAULT 40 #define ARG_INTRA_REFRESH_DEFAULT FALSE #define ARG_OPTION_STRING_DEFAULT "" static GString *x264enc_defaults; #define ARG_SPEED_PRESET_DEFAULT 6 /* 'medium' preset - matches x264 CLI default */ #define ARG_PSY_TUNE_DEFAULT 0 /* no psy tuning */ #define ARG_TUNE_DEFAULT 0 /* no tuning */ #define ARG_FRAME_PACKING_DEFAULT -1 /* automatic (none, or from input caps) */ #define ARG_INSERT_VUI_DEFAULT TRUE enum { GST_X264_ENC_STREAM_FORMAT_FROM_PROPERTY, GST_X264_ENC_STREAM_FORMAT_AVC, GST_X264_ENC_STREAM_FORMAT_BYTE_STREAM }; enum { GST_X264_ENC_PASS_CBR = 0, GST_X264_ENC_PASS_QUANT = 0x04, GST_X264_ENC_PASS_QUAL, GST_X264_ENC_PASS_PASS1 = 0x11, GST_X264_ENC_PASS_PASS2, GST_X264_ENC_PASS_PASS3 }; #define GST_X264_ENC_PASS_TYPE (gst_x264_enc_pass_get_type()) static GType gst_x264_enc_pass_get_type (void) { static GType pass_type = 0; static const GEnumValue pass_types[] = { {GST_X264_ENC_PASS_CBR, "Constant Bitrate Encoding", "cbr"}, {GST_X264_ENC_PASS_QUANT, "Constant Quantizer", "quant"}, {GST_X264_ENC_PASS_QUAL, "Constant Quality", "qual"}, {GST_X264_ENC_PASS_PASS1, "VBR Encoding - Pass 1", "pass1"}, {GST_X264_ENC_PASS_PASS2, "VBR Encoding - Pass 2", "pass2"}, {GST_X264_ENC_PASS_PASS3, "VBR Encoding - Pass 3", "pass3"}, {0, NULL, NULL} }; if (!pass_type) { pass_type = g_enum_register_static ("GstX264EncPass", pass_types); } return pass_type; } #define GST_X264_ENC_ME_TYPE (gst_x264_enc_me_get_type()) static GType gst_x264_enc_me_get_type (void) { static GType me_type = 0; static GEnumValue *me_types; int n, i; if (me_type != 0) return me_type; n = 0; while (x264_motion_est_names[n] != NULL) n++; me_types = g_new0 (GEnumValue, n + 1); for (i = 0; i < n; i++) { me_types[i].value = i; me_types[i].value_name = x264_motion_est_names[i]; me_types[i].value_nick = x264_motion_est_names[i]; } me_type = g_enum_register_static ("GstX264EncMe", me_types); return me_type; } #define GST_X264_ENC_ANALYSE_TYPE (gst_x264_enc_analyse_get_type()) static GType gst_x264_enc_analyse_get_type (void) { static GType analyse_type = 0; static const GFlagsValue analyse_types[] = { {X264_ANALYSE_I4x4, "i4x4", "i4x4"}, {X264_ANALYSE_I8x8, "i8x8", "i8x8"}, {X264_ANALYSE_PSUB16x16, "p8x8", "p8x8"}, {X264_ANALYSE_PSUB8x8, "p4x4", "p4x4"}, {X264_ANALYSE_BSUB16x16, "b8x8", "b8x8"}, {0, NULL, NULL}, }; if (!analyse_type) { analyse_type = g_flags_register_static ("GstX264EncAnalyse", analyse_types); } return analyse_type; } #define GST_X264_ENC_SPEED_PRESET_TYPE (gst_x264_enc_speed_preset_get_type()) static GType gst_x264_enc_speed_preset_get_type (void) { static GType speed_preset_type = 0; static GEnumValue *speed_preset_types; int n, i; if (speed_preset_type != 0) return speed_preset_type; n = 0; while (x264_preset_names[n] != NULL) n++; speed_preset_types = g_new0 (GEnumValue, n + 2); speed_preset_types[0].value = 0; speed_preset_types[0].value_name = "No preset"; speed_preset_types[0].value_nick = "None"; for (i = 1; i <= n; i++) { speed_preset_types[i].value = i; speed_preset_types[i].value_name = x264_preset_names[i - 1]; speed_preset_types[i].value_nick = x264_preset_names[i - 1]; } speed_preset_type = g_enum_register_static ("GstX264EncPreset", speed_preset_types); return speed_preset_type; } static const GFlagsValue tune_types[] = { {0x0, "No tuning", "none"}, {0x1, "Still image", "stillimage"}, {0x2, "Fast decode", "fastdecode"}, {0x4, "Zero latency", "zerolatency"}, {0, NULL, NULL}, }; #define GST_X264_ENC_TUNE_TYPE (gst_x264_enc_tune_get_type()) static GType gst_x264_enc_tune_get_type (void) { static GType tune_type = 0; if (!tune_type) { tune_type = g_flags_register_static ("GstX264EncTune", tune_types + 1); } return tune_type; } enum { GST_X264_ENC_TUNE_NONE, GST_X264_ENC_TUNE_FILM, GST_X264_ENC_TUNE_ANIMATION, GST_X264_ENC_TUNE_GRAIN, GST_X264_ENC_TUNE_PSNR, GST_X264_ENC_TUNE_SSIM, GST_X264_ENC_TUNE_LAST }; static const GEnumValue psy_tune_types[] = { {GST_X264_ENC_TUNE_NONE, "No tuning", "none"}, {GST_X264_ENC_TUNE_FILM, "Film", "film"}, {GST_X264_ENC_TUNE_ANIMATION, "Animation", "animation"}, {GST_X264_ENC_TUNE_GRAIN, "Grain", "grain"}, {GST_X264_ENC_TUNE_PSNR, "PSNR", "psnr"}, {GST_X264_ENC_TUNE_SSIM, "SSIM", "ssim"}, {0, NULL, NULL}, }; #define GST_X264_ENC_PSY_TUNE_TYPE (gst_x264_enc_psy_tune_get_type()) static GType gst_x264_enc_psy_tune_get_type (void) { static GType psy_tune_type = 0; if (!psy_tune_type) { psy_tune_type = g_enum_register_static ("GstX264EncPsyTune", psy_tune_types); } return psy_tune_type; } static void gst_x264_enc_build_tunings_string (GstX264Enc * x264enc) { int i = 1; if (x264enc->tunings) g_string_free (x264enc->tunings, TRUE); if (x264enc->psy_tune) { x264enc->tunings = g_string_new (psy_tune_types[x264enc->psy_tune].value_nick); } else { x264enc->tunings = g_string_new (NULL); } while (tune_types[i].value_name) { if (x264enc->tune & (1 << (i - 1))) g_string_append_printf (x264enc->tunings, "%s%s", x264enc->tunings->len ? "," : "", tune_types[i].value_nick); i++; } if (x264enc->tunings->len) GST_DEBUG_OBJECT (x264enc, "Constructed tunings string: %s", x264enc->tunings->str); } #define GST_X264_ENC_FRAME_PACKING_TYPE (gst_x264_enc_frame_packing_get_type()) static GType gst_x264_enc_frame_packing_get_type (void) { static GType fpa_type = 0; static const GEnumValue fpa_types[] = { {-1, "Automatic (use incoming video information)", "auto"}, {0, "checkerboard - Left and Right pixels alternate in a checkerboard pattern", "checkerboard"}, {1, "column interleaved - Alternating pixel columns represent Left and Right views", "column-interleaved"}, {2, "row interleaved - Alternating pixel rows represent Left and Right views", "row-interleaved"}, {3, "side by side - The left half of the frame contains the Left eye view, the right half the Right eye view", "side-by-side"}, {4, "top bottom - L is on top, R on bottom", "top-bottom"}, {5, "frame interleaved - Each frame contains either Left or Right view alternately", "frame-interleaved"}, {0, NULL, NULL} }; if (!fpa_type) { fpa_type = g_enum_register_static ("GstX264EncFramePacking", fpa_types); } return fpa_type; } static gint gst_x264_enc_mview_mode_to_frame_packing (GstVideoMultiviewMode mode) { switch (mode) { case GST_VIDEO_MULTIVIEW_MODE_CHECKERBOARD: return 0; case GST_VIDEO_MULTIVIEW_MODE_COLUMN_INTERLEAVED: return 1; case GST_VIDEO_MULTIVIEW_MODE_ROW_INTERLEAVED: return 2; case GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE: return 3; case GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM: return 4; case GST_VIDEO_MULTIVIEW_MODE_FRAME_BY_FRAME: return 5; default: break; } return -1; } static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS ("video/x-h264, " "framerate = (fraction) [0/1, MAX], " "width = (int) [ 1, MAX ], " "height = (int) [ 1, MAX ], " "stream-format = (string) { avc, byte-stream }, " "alignment = (string) au, " "profile = (string) { high-4:4:4, high-4:2:2, high-10, high, main," " baseline, constrained-baseline, high-4:4:4-intra, high-4:2:2-intra," " high-10-intra }") ); static void gst_x264_enc_finalize (GObject * object); static gboolean gst_x264_enc_start (GstVideoEncoder * encoder); static gboolean gst_x264_enc_stop (GstVideoEncoder * encoder); static gboolean gst_x264_enc_flush (GstVideoEncoder * encoder); static gboolean gst_x264_enc_init_encoder (GstX264Enc * encoder); static void gst_x264_enc_close_encoder (GstX264Enc * encoder); static GstFlowReturn gst_x264_enc_finish (GstVideoEncoder * encoder); static GstFlowReturn gst_x264_enc_handle_frame (GstVideoEncoder * encoder, GstVideoCodecFrame * frame); static void gst_x264_enc_flush_frames (GstX264Enc * encoder, gboolean send); static GstFlowReturn gst_x264_enc_encode_frame (GstX264Enc * encoder, x264_picture_t * pic_in, GstVideoCodecFrame * input_frame, int *i_nal, gboolean send); static gboolean gst_x264_enc_set_format (GstVideoEncoder * video_enc, GstVideoCodecState * state); static gboolean gst_x264_enc_propose_allocation (GstVideoEncoder * encoder, GstQuery * query); static void gst_x264_enc_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_x264_enc_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); #define gst_x264_enc_parent_class parent_class G_DEFINE_TYPE_WITH_CODE (GstX264Enc, gst_x264_enc, GST_TYPE_VIDEO_ENCODER, G_IMPLEMENT_INTERFACE (GST_TYPE_PRESET, NULL)); /* don't forget to free the string after use */ static const gchar * gst_x264_enc_build_partitions (gint analyse) { GString *string; if (!analyse) return NULL; string = g_string_new (NULL); if (analyse & X264_ANALYSE_I4x4) g_string_append (string, "i4x4"); if (analyse & X264_ANALYSE_I8x8) g_string_append (string, ",i8x8"); if (analyse & X264_ANALYSE_PSUB16x16) g_string_append (string, ",p8x8"); if (analyse & X264_ANALYSE_PSUB8x8) g_string_append (string, ",p4x4"); if (analyse & X264_ANALYSE_BSUB16x16) g_string_append (string, ",b8x8"); return (const gchar *) g_string_free (string, FALSE); } static void check_formats (const gchar * str, gboolean * has_420, gboolean * has_422, gboolean * has_444) { if (g_str_has_prefix (str, "high-4:4:4")) *has_444 = TRUE; else if (g_str_has_prefix (str, "high-4:2:2")) *has_422 = TRUE; else *has_420 = TRUE; } /* allowed input caps depending on whether libx264 was built for 8 or 10 bits */ static GstCaps * gst_x264_enc_sink_getcaps (GstVideoEncoder * enc, GstCaps * filter) { GstCaps *supported_incaps; GstCaps *allowed; GstCaps *filter_caps, *fcaps; gint i, j, k; supported_incaps = gst_pad_get_pad_template_caps (GST_VIDEO_ENCODER_SINK_PAD (enc)); /* Allow downstream to specify width/height/framerate/PAR constraints * and forward them upstream for video converters to handle */ allowed = gst_pad_get_allowed_caps (enc->srcpad); if (!allowed || gst_caps_is_empty (allowed) || gst_caps_is_any (allowed)) { fcaps = supported_incaps; goto done; } GST_LOG_OBJECT (enc, "template caps %" GST_PTR_FORMAT, supported_incaps); GST_LOG_OBJECT (enc, "allowed caps %" GST_PTR_FORMAT, allowed); filter_caps = gst_caps_new_empty (); for (i = 0; i < gst_caps_get_size (supported_incaps); i++) { GQuark q_name = gst_structure_get_name_id (gst_caps_get_structure (supported_incaps, i)); for (j = 0; j < gst_caps_get_size (allowed); j++) { const GstStructure *allowed_s = gst_caps_get_structure (allowed, j); const GValue *val; GstStructure *s; s = gst_structure_new_id_empty (q_name); if ((val = gst_structure_get_value (allowed_s, "width"))) gst_structure_set_value (s, "width", val); if ((val = gst_structure_get_value (allowed_s, "height"))) gst_structure_set_value (s, "height", val); if ((val = gst_structure_get_value (allowed_s, "framerate"))) gst_structure_set_value (s, "framerate", val); if ((val = gst_structure_get_value (allowed_s, "pixel-aspect-ratio"))) gst_structure_set_value (s, "pixel-aspect-ratio", val); if ((val = gst_structure_get_value (allowed_s, "profile"))) { gboolean has_420 = FALSE; gboolean has_422 = FALSE; gboolean has_444 = FALSE; if (G_VALUE_HOLDS_STRING (val)) { check_formats (g_value_get_string (val), &has_420, &has_422, &has_444); } else if (GST_VALUE_HOLDS_LIST (val)) { for (k = 0; k < gst_value_list_get_size (val); k++) { const GValue *vlist = gst_value_list_get_value (val, k); if (G_VALUE_HOLDS_STRING (vlist)) check_formats (g_value_get_string (vlist), &has_420, &has_422, &has_444); } } gst_x264_enc_add_x264_chroma_format (s, has_420, has_422, has_444); } filter_caps = gst_caps_merge_structure (filter_caps, s); } } fcaps = gst_caps_intersect (filter_caps, supported_incaps); gst_caps_unref (filter_caps); gst_caps_unref (supported_incaps); if (filter) { GST_LOG_OBJECT (enc, "intersecting with %" GST_PTR_FORMAT, filter); filter_caps = gst_caps_intersect (fcaps, filter); gst_caps_unref (fcaps); fcaps = filter_caps; } done: gst_caps_replace (&allowed, NULL); GST_LOG_OBJECT (enc, "proxy caps %" GST_PTR_FORMAT, fcaps); return fcaps; } static gboolean gst_x264_enc_sink_query (GstVideoEncoder * enc, GstQuery * query) { GstPad *pad = GST_VIDEO_ENCODER_SINK_PAD (enc); gboolean ret = FALSE; GST_DEBUG ("Received %s query on sinkpad, %" GST_PTR_FORMAT, GST_QUERY_TYPE_NAME (query), query); switch (GST_QUERY_TYPE (query)) { case GST_QUERY_ACCEPT_CAPS:{ GstCaps *acceptable, *caps; acceptable = gst_pad_get_pad_template_caps (pad); gst_query_parse_accept_caps (query, &caps); gst_query_set_accept_caps_result (query, gst_caps_is_subset (caps, acceptable)); gst_caps_unref (acceptable); ret = TRUE; } break; default: ret = GST_VIDEO_ENCODER_CLASS (parent_class)->sink_query (enc, query); break; } return ret; } static void gst_x264_enc_class_init (GstX264EncClass * klass) { GObjectClass *gobject_class; GstElementClass *element_class; GstVideoEncoderClass *gstencoder_class; const gchar *partitions = NULL; GstPadTemplate *sink_templ; GstCaps *supported_sinkcaps; x264enc_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_x264_enc_set_property; gobject_class->get_property = gst_x264_enc_get_property; gobject_class->finalize = gst_x264_enc_finalize; gstencoder_class->set_format = GST_DEBUG_FUNCPTR (gst_x264_enc_set_format); gstencoder_class->handle_frame = GST_DEBUG_FUNCPTR (gst_x264_enc_handle_frame); gstencoder_class->start = GST_DEBUG_FUNCPTR (gst_x264_enc_start); gstencoder_class->stop = GST_DEBUG_FUNCPTR (gst_x264_enc_stop); gstencoder_class->flush = GST_DEBUG_FUNCPTR (gst_x264_enc_flush); gstencoder_class->finish = GST_DEBUG_FUNCPTR (gst_x264_enc_finish); gstencoder_class->getcaps = GST_DEBUG_FUNCPTR (gst_x264_enc_sink_getcaps); gstencoder_class->propose_allocation = GST_DEBUG_FUNCPTR (gst_x264_enc_propose_allocation); gstencoder_class->sink_query = GST_DEBUG_FUNCPTR (gst_x264_enc_sink_query); /* options for which we don't use string equivalents */ g_object_class_install_property (gobject_class, ARG_PASS, g_param_spec_enum ("pass", "Encoding pass/type", "Encoding pass/type", GST_X264_ENC_PASS_TYPE, ARG_PASS_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, ARG_QUANTIZER, g_param_spec_uint ("quantizer", "Constant Quantizer", "Constant quantizer or quality to apply", 0, 50, ARG_QUANTIZER_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, ARG_BITRATE, g_param_spec_uint ("bitrate", "Bitrate", "Bitrate in kbit/sec", 1, 2000 * 1024, ARG_BITRATE_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_MUTABLE_PLAYING)); g_object_class_install_property (gobject_class, ARG_VBV_BUF_CAPACITY, g_param_spec_uint ("vbv-buf-capacity", "VBV buffer capacity", "Size of the VBV buffer in milliseconds", 0, 10000, ARG_VBV_BUF_CAPACITY_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | GST_PARAM_MUTABLE_PLAYING)); g_object_class_install_property (gobject_class, ARG_SPEED_PRESET, g_param_spec_enum ("speed-preset", "Speed/quality preset", "Preset name for speed/quality tradeoff options (can affect decode " "compatibility - impose restrictions separately for your target decoder)", GST_X264_ENC_SPEED_PRESET_TYPE, ARG_SPEED_PRESET_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, ARG_PSY_TUNE, g_param_spec_enum ("psy-tune", "Psychovisual tuning preset", "Preset name for psychovisual tuning options", GST_X264_ENC_PSY_TUNE_TYPE, ARG_PSY_TUNE_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, ARG_TUNE, g_param_spec_flags ("tune", "Content tuning preset", "Preset name for non-psychovisual tuning options", GST_X264_ENC_TUNE_TYPE, ARG_TUNE_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, ARG_OPTION_STRING, g_param_spec_string ("option-string", "Option string", "String of x264 options (overridden by element properties)" " in the format \"key1=value1:key2=value2\".", ARG_OPTION_STRING_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, ARG_FRAME_PACKING, g_param_spec_enum ("frame-packing", "Frame Packing", "Set frame packing mode for Stereoscopic content", GST_X264_ENC_FRAME_PACKING_TYPE, ARG_FRAME_PACKING_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, ARG_INSERT_VUI, g_param_spec_boolean ("insert-vui", "Insert VUI", "Insert VUI NAL in stream", ARG_INSERT_VUI_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /* options for which we _do_ use string equivalents */ g_object_class_install_property (gobject_class, ARG_THREADS, g_param_spec_uint ("threads", "Threads", "Number of threads used by the codec (0 for automatic)", 0, G_MAXINT, ARG_THREADS_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /* NOTE: this first string append doesn't require the ':' delimiter but the * rest do */ g_string_append_printf (x264enc_defaults, "threads=%d", ARG_THREADS_DEFAULT); g_object_class_install_property (gobject_class, ARG_SLICED_THREADS, g_param_spec_boolean ("sliced-threads", "Sliced Threads", "Low latency but lower efficiency threading", ARG_SLICED_THREADS_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":sliced-threads=%d", ARG_SLICED_THREADS_DEFAULT); g_object_class_install_property (gobject_class, ARG_SYNC_LOOKAHEAD, g_param_spec_int ("sync-lookahead", "Sync Lookahead", "Number of buffer frames for threaded lookahead (-1 for automatic)", -1, 250, ARG_SYNC_LOOKAHEAD_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":sync-lookahead=%d", ARG_SYNC_LOOKAHEAD_DEFAULT); g_object_class_install_property (gobject_class, ARG_MULTIPASS_CACHE_FILE, g_param_spec_string ("multipass-cache-file", "Multipass Cache File", "Filename for multipass cache file", ARG_MULTIPASS_CACHE_FILE_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":stats=%s", ARG_MULTIPASS_CACHE_FILE_DEFAULT); g_object_class_install_property (gobject_class, ARG_BYTE_STREAM, g_param_spec_boolean ("byte-stream", "Byte Stream", "Generate byte stream format of NALU", ARG_BYTE_STREAM_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":annexb=%d", ARG_BYTE_STREAM_DEFAULT); g_object_class_install_property (gobject_class, ARG_INTRA_REFRESH, g_param_spec_boolean ("intra-refresh", "Intra Refresh", "Use Periodic Intra Refresh instead of IDR frames", ARG_INTRA_REFRESH_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":intra-refresh=%d", ARG_INTRA_REFRESH_DEFAULT); g_object_class_install_property (gobject_class, ARG_ME, g_param_spec_enum ("me", "Motion Estimation", "Integer pixel motion estimation method", GST_X264_ENC_ME_TYPE, ARG_ME_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":me=%s", x264_motion_est_names[ARG_ME_DEFAULT]); g_object_class_install_property (gobject_class, ARG_SUBME, g_param_spec_uint ("subme", "Subpixel Motion Estimation", "Subpixel motion estimation and partition decision quality: 1=fast, 10=best", 1, 10, ARG_SUBME_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":subme=%d", ARG_SUBME_DEFAULT); g_object_class_install_property (gobject_class, ARG_ANALYSE, g_param_spec_flags ("analyse", "Analyse", "Partitions to consider", GST_X264_ENC_ANALYSE_TYPE, ARG_ANALYSE_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); partitions = gst_x264_enc_build_partitions (ARG_ANALYSE_DEFAULT); if (partitions) { g_string_append_printf (x264enc_defaults, ":partitions=%s", partitions); g_free ((gpointer) partitions); } g_object_class_install_property (gobject_class, ARG_DCT8x8, g_param_spec_boolean ("dct8x8", "DCT8x8", "Adaptive spatial transform size", ARG_DCT8x8_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":8x8dct=%d", ARG_DCT8x8_DEFAULT); g_object_class_install_property (gobject_class, ARG_REF, g_param_spec_uint ("ref", "Reference Frames", "Number of reference frames", 1, 12, ARG_REF_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":ref=%d", ARG_REF_DEFAULT); g_object_class_install_property (gobject_class, ARG_BFRAMES, g_param_spec_uint ("bframes", "B-Frames", "Number of B-frames between I and P", 0, 16, ARG_BFRAMES_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":bframes=%d", ARG_BFRAMES_DEFAULT); g_object_class_install_property (gobject_class, ARG_B_ADAPT, g_param_spec_boolean ("b-adapt", "B-Adapt", "Automatically decide how many B-frames to use", ARG_B_ADAPT_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":b-adapt=%d", ARG_B_ADAPT_DEFAULT); g_object_class_install_property (gobject_class, ARG_B_PYRAMID, g_param_spec_boolean ("b-pyramid", "B-Pyramid", "Keep some B-frames as references", ARG_B_PYRAMID_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":b-pyramid=%s", x264_b_pyramid_names[ARG_B_PYRAMID_DEFAULT]); g_object_class_install_property (gobject_class, ARG_WEIGHTB, g_param_spec_boolean ("weightb", "Weighted B-Frames", "Weighted prediction for B-frames", ARG_WEIGHTB_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":weightb=%d", ARG_WEIGHTB_DEFAULT); g_object_class_install_property (gobject_class, ARG_SPS_ID, g_param_spec_uint ("sps-id", "SPS ID", "SPS and PPS ID number", 0, 31, ARG_SPS_ID_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":sps-id=%d", ARG_SPS_ID_DEFAULT); g_object_class_install_property (gobject_class, ARG_AU_NALU, g_param_spec_boolean ("aud", "AUD", "Use AU (Access Unit) delimiter", ARG_AU_NALU_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":aud=%d", ARG_AU_NALU_DEFAULT); g_object_class_install_property (gobject_class, ARG_TRELLIS, g_param_spec_boolean ("trellis", "Trellis quantization", "Enable trellis searched quantization", ARG_TRELLIS_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":trellis=%d", ARG_TRELLIS_DEFAULT); g_object_class_install_property (gobject_class, ARG_KEYINT_MAX, g_param_spec_uint ("key-int-max", "Key-frame maximal interval", "Maximal distance between two key-frames (0 for automatic)", 0, G_MAXINT, ARG_KEYINT_MAX_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":keyint=%d", ARG_KEYINT_MAX_DEFAULT); g_object_class_install_property (gobject_class, ARG_CABAC, g_param_spec_boolean ("cabac", "Use CABAC", "Enable CABAC entropy coding", ARG_CABAC_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":cabac=%d", ARG_CABAC_DEFAULT); g_object_class_install_property (gobject_class, ARG_QP_MIN, g_param_spec_uint ("qp-min", "Minimum Quantizer", "Minimum quantizer", 0, 51, ARG_QP_MIN_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":qpmin=%d", ARG_QP_MIN_DEFAULT); g_object_class_install_property (gobject_class, ARG_QP_MAX, g_param_spec_uint ("qp-max", "Maximum Quantizer", "Maximum quantizer", 0, 51, ARG_QP_MAX_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":qpmax=%d", ARG_QP_MAX_DEFAULT); g_object_class_install_property (gobject_class, ARG_QP_STEP, g_param_spec_uint ("qp-step", "Maximum Quantizer Difference", "Maximum quantizer difference between frames", 0, 50, ARG_QP_STEP_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":qpstep=%d", ARG_QP_STEP_DEFAULT); g_object_class_install_property (gobject_class, ARG_IP_FACTOR, g_param_spec_float ("ip-factor", "IP-Factor", "Quantizer factor between I- and P-frames", 0, 2, ARG_IP_FACTOR_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":ip-factor=%f", ARG_IP_FACTOR_DEFAULT); g_object_class_install_property (gobject_class, ARG_PB_FACTOR, g_param_spec_float ("pb-factor", "PB-Factor", "Quantizer factor between P- and B-frames", 0, 2, ARG_PB_FACTOR_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":pb-factor=%f", ARG_PB_FACTOR_DEFAULT); g_object_class_install_property (gobject_class, ARG_RC_MB_TREE, g_param_spec_boolean ("mb-tree", "Macroblock Tree", "Macroblock-Tree ratecontrol", ARG_RC_MB_TREE_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":mbtree=%d", ARG_RC_MB_TREE_DEFAULT); g_object_class_install_property (gobject_class, ARG_RC_LOOKAHEAD, g_param_spec_int ("rc-lookahead", "Rate Control Lookahead", "Number of frames for frametype lookahead", 0, 250, ARG_RC_LOOKAHEAD_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":rc-lookahead=%d", ARG_RC_LOOKAHEAD_DEFAULT); g_object_class_install_property (gobject_class, ARG_NR, g_param_spec_uint ("noise-reduction", "Noise Reduction", "Noise reduction strength", 0, 100000, ARG_NR_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":nr=%d", ARG_NR_DEFAULT); g_object_class_install_property (gobject_class, ARG_INTERLACED, g_param_spec_boolean ("interlaced", "Interlaced", "Interlaced material", ARG_INTERLACED_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_string_append_printf (x264enc_defaults, ":interlaced=%d", ARG_INTERLACED_DEFAULT); /* append deblock parameters */ g_string_append_printf (x264enc_defaults, ":deblock=0,0"); /* append weighted prediction parameter */ g_string_append_printf (x264enc_defaults, ":weightp=0"); gst_element_class_set_static_metadata (element_class, "x264enc", "Codec/Encoder/Video", "H264 Encoder", "Josef Zlomek , " "Mark Nauwelaerts "); supported_sinkcaps = gst_caps_new_simple ("video/x-raw", "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, "width", GST_TYPE_INT_RANGE, 16, G_MAXINT, "height", GST_TYPE_INT_RANGE, 16, G_MAXINT, NULL); gst_x264_enc_add_x264_chroma_format (gst_caps_get_structure (supported_sinkcaps, 0), TRUE, TRUE, TRUE); sink_templ = gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, supported_sinkcaps); gst_caps_unref (supported_sinkcaps); gst_element_class_add_pad_template (element_class, sink_templ); gst_element_class_add_static_pad_template (element_class, &src_factory); } static void gst_x264_enc_log_callback (gpointer private, gint level, const char *format, va_list args) { #ifndef GST_DISABLE_GST_DEBUG GstDebugLevel gst_level; GObject *object = (GObject *) private; switch (level) { case X264_LOG_NONE: gst_level = GST_LEVEL_NONE; break; case X264_LOG_ERROR: gst_level = GST_LEVEL_ERROR; break; case X264_LOG_WARNING: gst_level = GST_LEVEL_WARNING; break; case X264_LOG_INFO: gst_level = GST_LEVEL_INFO; break; default: /* push x264enc debug down to our lower levels to avoid some clutter */ gst_level = GST_LEVEL_LOG; break; } gst_debug_log_valist (x264_enc_debug, gst_level, "", "", 0, object, format, args); #endif /* GST_DISABLE_GST_DEBUG */ } /* initialize the new element * instantiate pads and add them to element * set functions * initialize structure */ static void gst_x264_enc_init (GstX264Enc * encoder) { /* properties */ encoder->threads = ARG_THREADS_DEFAULT; encoder->sliced_threads = ARG_SLICED_THREADS_DEFAULT; encoder->sync_lookahead = ARG_SYNC_LOOKAHEAD_DEFAULT; encoder->pass = ARG_PASS_DEFAULT; encoder->quantizer = ARG_QUANTIZER_DEFAULT; encoder->mp_cache_file = g_strdup (ARG_MULTIPASS_CACHE_FILE_DEFAULT); encoder->byte_stream = ARG_BYTE_STREAM_DEFAULT; encoder->bitrate = ARG_BITRATE_DEFAULT; encoder->intra_refresh = ARG_INTRA_REFRESH_DEFAULT; encoder->vbv_buf_capacity = ARG_VBV_BUF_CAPACITY_DEFAULT; encoder->me = ARG_ME_DEFAULT; encoder->subme = ARG_SUBME_DEFAULT; encoder->analyse = ARG_ANALYSE_DEFAULT; encoder->dct8x8 = ARG_DCT8x8_DEFAULT; encoder->ref = ARG_REF_DEFAULT; encoder->bframes = ARG_BFRAMES_DEFAULT; encoder->b_adapt = ARG_B_ADAPT_DEFAULT; encoder->b_pyramid = ARG_B_PYRAMID_DEFAULT; encoder->weightb = ARG_WEIGHTB_DEFAULT; encoder->sps_id = ARG_SPS_ID_DEFAULT; encoder->au_nalu = ARG_AU_NALU_DEFAULT; encoder->trellis = ARG_TRELLIS_DEFAULT; encoder->keyint_max = ARG_KEYINT_MAX_DEFAULT; encoder->cabac = ARG_CABAC_DEFAULT; encoder->qp_min = ARG_QP_MIN_DEFAULT; encoder->qp_max = ARG_QP_MAX_DEFAULT; encoder->qp_step = ARG_QP_STEP_DEFAULT; encoder->ip_factor = ARG_IP_FACTOR_DEFAULT; encoder->pb_factor = ARG_PB_FACTOR_DEFAULT; encoder->mb_tree = ARG_RC_MB_TREE_DEFAULT; encoder->rc_lookahead = ARG_RC_LOOKAHEAD_DEFAULT; encoder->noise_reduction = ARG_NR_DEFAULT; encoder->interlaced = ARG_INTERLACED_DEFAULT; encoder->option_string = g_string_new (NULL); encoder->option_string_prop = g_string_new (ARG_OPTION_STRING_DEFAULT); encoder->speed_preset = ARG_SPEED_PRESET_DEFAULT; encoder->psy_tune = ARG_PSY_TUNE_DEFAULT; encoder->tune = ARG_TUNE_DEFAULT; encoder->frame_packing = ARG_FRAME_PACKING_DEFAULT; encoder->insert_vui = ARG_INSERT_VUI_DEFAULT; } typedef struct { GstVideoCodecFrame *frame; GstVideoFrame vframe; } FrameData; static FrameData * gst_x264_enc_queue_frame (GstX264Enc * 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_x264_enc_dequeue_frame (GstX264Enc * 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_x264_enc_dequeue_all_frames (GstX264Enc * 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_x264_enc_start (GstVideoEncoder * encoder) { GstX264Enc *x264enc = GST_X264_ENC (encoder); x264enc->current_byte_stream = GST_X264_ENC_STREAM_FORMAT_FROM_PROPERTY; /* make sure that we have enough time for first DTS, this is probably overkill for most streams */ gst_video_encoder_set_min_pts (encoder, GST_SECOND * 60 * 60 * 1000); return TRUE; } static gboolean gst_x264_enc_stop (GstVideoEncoder * encoder) { GstX264Enc *x264enc = GST_X264_ENC (encoder); gst_x264_enc_flush_frames (x264enc, FALSE); gst_x264_enc_close_encoder (x264enc); gst_x264_enc_dequeue_all_frames (x264enc); if (x264enc->input_state) gst_video_codec_state_unref (x264enc->input_state); x264enc->input_state = NULL; return TRUE; } static gboolean gst_x264_enc_flush (GstVideoEncoder * encoder) { GstX264Enc *x264enc = GST_X264_ENC (encoder); gst_x264_enc_flush_frames (x264enc, FALSE); gst_x264_enc_close_encoder (x264enc); gst_x264_enc_dequeue_all_frames (x264enc); gst_x264_enc_init_encoder (x264enc); return TRUE; } static void gst_x264_enc_finalize (GObject * object) { GstX264Enc *encoder = GST_X264_ENC (object); if (encoder->input_state) gst_video_codec_state_unref (encoder->input_state); encoder->input_state = NULL; #define FREE_STRING(ptr) \ if (ptr) \ g_string_free (ptr, TRUE); FREE_STRING (encoder->tunings); FREE_STRING (encoder->option_string); FREE_STRING (encoder->option_string_prop); #undef FREE_STRING g_free (encoder->mp_cache_file); encoder->mp_cache_file = NULL; gst_x264_enc_close_encoder (encoder); G_OBJECT_CLASS (parent_class)->finalize (object); } /* * gst_x264_enc_parse_options * @encoder: Encoder to which options are assigned * @str: Option string * * Parse option string and assign to x264 parameters * */ static gboolean gst_x264_enc_parse_options (GstX264Enc * 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 = encoder->vtable->x264_param_parse (&encoder->x264param, key_val[0], key_val[1]); if (parse_result == X264_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 == X264_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; } static gint gst_x264_enc_gst_to_x264_video_format (GstVideoFormat format, gint * nplanes) { switch (format) { case GST_VIDEO_FORMAT_I420: case GST_VIDEO_FORMAT_YV12: if (nplanes) *nplanes = 3; return X264_CSP_I420; case GST_VIDEO_FORMAT_I420_10BE: case GST_VIDEO_FORMAT_I420_10LE: if (nplanes) *nplanes = 3; return X264_CSP_I420 | X264_CSP_HIGH_DEPTH; case GST_VIDEO_FORMAT_Y42B: if (nplanes) *nplanes = 3; return X264_CSP_I422; case GST_VIDEO_FORMAT_I422_10BE: case GST_VIDEO_FORMAT_I422_10LE: if (nplanes) *nplanes = 3; return X264_CSP_I422 | X264_CSP_HIGH_DEPTH; case GST_VIDEO_FORMAT_Y444: if (nplanes) *nplanes = 3; return X264_CSP_I444; case GST_VIDEO_FORMAT_Y444_10BE: case GST_VIDEO_FORMAT_Y444_10LE: if (nplanes) *nplanes = 3; return X264_CSP_I444 | X264_CSP_HIGH_DEPTH; case GST_VIDEO_FORMAT_NV12: if (nplanes) *nplanes = 2; return X264_CSP_NV12; default: g_return_val_if_reached (GST_VIDEO_FORMAT_UNKNOWN); } } /* * gst_x264_enc_init_encoder * @encoder: Encoder which should be initialized. * * Initialize x264 encoder. * */ static gboolean gst_x264_enc_init_encoder (GstX264Enc * encoder) { guint pass = 0; 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_x264_enc_close_encoder (encoder); GST_OBJECT_LOCK (encoder); if (GST_VIDEO_INFO_COMP_DEPTH (info, 0) == 8) encoder->vtable = vtable_8bit; else if (GST_VIDEO_INFO_COMP_DEPTH (info, 0) == 10) encoder->vtable = vtable_10bit; g_assert (encoder->vtable != NULL); gst_x264_enc_build_tunings_string (encoder); /* set x264 parameters and use preset/tuning if present */ GST_DEBUG_OBJECT (encoder, "Applying defaults with preset %s, tunings %s", encoder->speed_preset ? x264_preset_names[encoder->speed_preset - 1] : "", encoder->tunings && encoder->tunings->len ? encoder->tunings->str : ""); encoder->vtable->x264_param_default_preset (&encoder->x264param, encoder->speed_preset ? x264_preset_names[encoder->speed_preset - 1] : NULL, encoder->tunings && encoder->tunings->len ? encoder->tunings->str : NULL); /* log callback setup; part of parameters * this needs to be done again after every *param_default* () call */ encoder->x264param.pf_log = gst_x264_enc_log_callback; encoder->x264param.p_log_private = encoder; encoder->x264param.i_log_level = X264_LOG_DEBUG; /* if no preset nor tuning, use property defaults */ if (!encoder->speed_preset && !encoder->tunings->len) { GST_DEBUG_OBJECT (encoder, "Applying x264enc_defaults"); if (x264enc_defaults->len && gst_x264_enc_parse_options (encoder, x264enc_defaults->str) == FALSE) { GST_DEBUG_OBJECT (encoder, "x264enc_defaults string contains errors. This is a bug."); goto unlock_and_return; } } else { /* When using presets we need to respect the default output format */ encoder->x264param.b_aud = encoder->au_nalu; encoder->x264param.b_annexb = encoder->byte_stream; } /* setup appropriate timebase for gstreamer */ encoder->x264param.i_timebase_num = 1; encoder->x264param.i_timebase_den = 1000000000; /* 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_x264_enc_parse_options (encoder, encoder->option_string_prop->str) == FALSE) { GST_DEBUG_OBJECT (encoder, "Your option-string contains errors."); goto unlock_and_return; } } /* apply user-set options */ if (encoder->option_string && encoder->option_string->len) { GST_DEBUG_OBJECT (encoder, "Applying user-set options: %s", encoder->option_string->str); if (gst_x264_enc_parse_options (encoder, encoder->option_string->str) == FALSE) { GST_DEBUG_OBJECT (encoder, "Failed to parse internal option string. " "This could be due to use of an old libx264 version. Option string " "was: %s", encoder->option_string->str); } } /* set up encoder parameters */ #if X264_BUILD >= 153 encoder->x264param.i_bitdepth = GST_VIDEO_INFO_COMP_DEPTH (info, 0); #endif encoder->x264param.i_csp = gst_x264_enc_gst_to_x264_video_format (info->finfo->format, &encoder->x264_nplanes); if (info->fps_d == 0 || info->fps_n == 0) { /* No FPS so must use VFR * This raises latency apparently see http://mewiki.project357.com/wiki/X264_Encoding_Suggestions */ encoder->x264param.b_vfr_input = TRUE; if (encoder->keyint_max) { /* NB the default is 250 setup by x264 itself */ encoder->x264param.i_keyint_max = encoder->keyint_max; } } else { /* FPS available so set it up */ encoder->x264param.b_vfr_input = FALSE; encoder->x264param.i_fps_num = info->fps_n; encoder->x264param.i_fps_den = info->fps_d; encoder->x264param.i_keyint_max = encoder->keyint_max ? encoder->keyint_max : (10 * info->fps_n / info->fps_d); } encoder->x264param.i_width = info->width; encoder->x264param.i_height = info->height; if (info->par_d > 0) { encoder->x264param.vui.i_sar_width = info->par_n; encoder->x264param.vui.i_sar_height = info->par_d; } if ((((info->height == 576) && ((info->width == 720) || (info->width == 704) || (info->width == 352))) || ((info->height == 288) && (info->width == 352))) && (info->fps_d == 1) && (info->fps_n == 25)) { encoder->x264param.vui.i_vidformat = 1; /* PAL */ } else if ((((info->height == 480) && ((info->width == 720) || (info->width == 704) || (info->width == 352))) || ((info->height == 240) && (info->width == 352))) && (info->fps_d == 1001) && ((info->fps_n == 30000) || (info->fps_n == 24000))) { encoder->x264param.vui.i_vidformat = 2; /* NTSC */ } else { encoder->x264param.vui.i_vidformat = 5; /* unspecified */ } if (!encoder->insert_vui) goto skip_vui_parameters; switch (info->colorimetry.primaries) { case GST_VIDEO_COLOR_PRIMARIES_BT709: encoder->x264param.vui.i_colorprim = 1; break; case GST_VIDEO_COLOR_PRIMARIES_BT470M: encoder->x264param.vui.i_colorprim = 4; break; case GST_VIDEO_COLOR_PRIMARIES_BT470BG: encoder->x264param.vui.i_colorprim = 5; break; case GST_VIDEO_COLOR_PRIMARIES_SMPTE170M: encoder->x264param.vui.i_colorprim = 6; break; case GST_VIDEO_COLOR_PRIMARIES_SMPTE240M: encoder->x264param.vui.i_colorprim = 7; break; case GST_VIDEO_COLOR_PRIMARIES_FILM: encoder->x264param.vui.i_colorprim = 8; break; case GST_VIDEO_COLOR_PRIMARIES_BT2020: encoder->x264param.vui.i_colorprim = 9; break; default: encoder->x264param.vui.i_colorprim = 2; break; } switch (info->colorimetry.transfer) { case GST_VIDEO_TRANSFER_BT709: encoder->x264param.vui.i_transfer = 1; break; case GST_VIDEO_TRANSFER_GAMMA22: encoder->x264param.vui.i_transfer = 4; break; case GST_VIDEO_TRANSFER_GAMMA28: encoder->x264param.vui.i_transfer = 5; break; case GST_VIDEO_TRANSFER_SMPTE240M: encoder->x264param.vui.i_transfer = 7; break; case GST_VIDEO_TRANSFER_GAMMA10: encoder->x264param.vui.i_transfer = 8; break; case GST_VIDEO_TRANSFER_LOG100: encoder->x264param.vui.i_transfer = 9; break; case GST_VIDEO_TRANSFER_LOG316: encoder->x264param.vui.i_transfer = 10; break; default: encoder->x264param.vui.i_transfer = 2; break; } switch (info->colorimetry.matrix) { case GST_VIDEO_COLOR_MATRIX_RGB: encoder->x264param.vui.i_colmatrix = 0; break; case GST_VIDEO_COLOR_MATRIX_FCC: encoder->x264param.vui.i_colmatrix = 4; break; case GST_VIDEO_COLOR_MATRIX_BT709: encoder->x264param.vui.i_colmatrix = 1; break; case GST_VIDEO_COLOR_MATRIX_BT601: encoder->x264param.vui.i_colmatrix = 5; break; case GST_VIDEO_COLOR_MATRIX_SMPTE240M: encoder->x264param.vui.i_colmatrix = 7; break; case GST_VIDEO_COLOR_MATRIX_BT2020: encoder->x264param.vui.i_colmatrix = 9; break; default: encoder->x264param.vui.i_colmatrix = 2; break; } if (info->colorimetry.range == GST_VIDEO_COLOR_RANGE_0_255) { encoder->x264param.vui.b_fullrange = 1; } else { encoder->x264param.vui.b_fullrange = 0; } switch (info->chroma_site) { case GST_VIDEO_CHROMA_SITE_MPEG2: encoder->x264param.vui.i_chroma_loc = 0; break; case GST_VIDEO_CHROMA_SITE_JPEG: encoder->x264param.vui.i_chroma_loc = 1; break; case GST_VIDEO_CHROMA_SITE_V_COSITED: encoder->x264param.vui.i_chroma_loc = 3; break; case GST_VIDEO_CHROMA_SITE_DV: encoder->x264param.vui.i_chroma_loc = 2; break; default: encoder->x264param.vui.i_chroma_loc = 0; break; } skip_vui_parameters: encoder->x264param.analyse.b_psnr = 0; /* FIXME 2.0 make configuration more sane and consistent with x264 cmdline: * + split pass property into a pass property (pass1/2/3 enum) and rc-method * + bitrate property should only be used in case of CBR method * + vbv bitrate/buffer should have separate configuration that is then * applied independently of the mode: * + either using properties (new) vbv-maxrate and (renamed) vbv-bufsize * + or dropping vbv-buf-capacity altogether and simply using option-string */ switch (encoder->pass) { case GST_X264_ENC_PASS_QUANT: encoder->x264param.rc.i_rc_method = X264_RC_CQP; encoder->x264param.rc.i_qp_constant = encoder->quantizer; break; case GST_X264_ENC_PASS_QUAL: encoder->x264param.rc.i_rc_method = X264_RC_CRF; encoder->x264param.rc.f_rf_constant = encoder->quantizer; encoder->x264param.rc.i_vbv_max_bitrate = encoder->bitrate; encoder->x264param.rc.i_vbv_buffer_size = encoder->x264param.rc.i_vbv_max_bitrate * encoder->vbv_buf_capacity / 1000; break; case GST_X264_ENC_PASS_CBR: case GST_X264_ENC_PASS_PASS1: case GST_X264_ENC_PASS_PASS2: case GST_X264_ENC_PASS_PASS3: default: encoder->x264param.rc.i_rc_method = X264_RC_ABR; encoder->x264param.rc.i_bitrate = encoder->bitrate; encoder->x264param.rc.i_vbv_max_bitrate = encoder->bitrate; encoder->x264param.rc.i_vbv_buffer_size = encoder->x264param.rc.i_vbv_max_bitrate * encoder->vbv_buf_capacity / 1000; pass = encoder->pass & 0xF; break; } switch (pass) { case 0: encoder->x264param.rc.b_stat_read = 0; encoder->x264param.rc.b_stat_write = 0; break; case 1: encoder->x264param.rc.b_stat_read = 0; encoder->x264param.rc.b_stat_write = 1; encoder->vtable->x264_param_apply_fastfirstpass (&encoder->x264param); encoder->x264param.i_frame_reference = 1; encoder->x264param.analyse.b_transform_8x8 = 0; encoder->x264param.analyse.inter = 0; encoder->x264param.analyse.i_me_method = X264_ME_DIA; encoder->x264param.analyse.i_subpel_refine = MIN (2, encoder->x264param.analyse.i_subpel_refine); encoder->x264param.analyse.i_trellis = 0; encoder->x264param.analyse.b_fast_pskip = 1; break; case 2: encoder->x264param.rc.b_stat_read = 1; encoder->x264param.rc.b_stat_write = 0; break; case 3: encoder->x264param.rc.b_stat_read = 1; encoder->x264param.rc.b_stat_write = 1; break; } if (encoder->peer_profile) { if (encoder->vtable->x264_param_apply_profile (&encoder->x264param, encoder->peer_profile)) GST_WARNING_OBJECT (encoder, "Bad downstream profile name: %s", encoder->peer_profile); } /* If using an intra profile, all frames are intra frames */ if (encoder->peer_intra_profile) encoder->x264param.i_keyint_max = encoder->x264param.i_keyint_min = 1; /* Enforce level limits if they were in the caps */ if (encoder->peer_level_idc != -1) { gint i; const x264_level_t *peer_level = NULL; for (i = 0; (*encoder->vtable->x264_levels)[i].level_idc; i++) { if (encoder->peer_level_idc == (*encoder->vtable->x264_levels)[i].level_idc) { int mb_width = (info->width + 15) / 16; int mb_height = (info->height + 15) / 16; int mbs = mb_width * mb_height; if ((*encoder->vtable->x264_levels)[i].frame_size < mbs || (*encoder->vtable->x264_levels)[i].frame_size * 8 < mb_width * mb_width || (*encoder->vtable->x264_levels)[i].frame_size * 8 < mb_height * mb_height) { GST_WARNING_OBJECT (encoder, "Frame size larger than level %d allows", encoder->peer_level_idc); break; } if (info->fps_d && (*encoder->vtable->x264_levels)[i].mbps < (gint64) mbs * info->fps_n / info->fps_d) { GST_WARNING_OBJECT (encoder, "Macroblock rate higher than level %d allows", encoder->peer_level_idc); break; } peer_level = &(*encoder->vtable->x264_levels)[i]; break; } } if (!peer_level) goto unlock_and_return; encoder->x264param.i_level_idc = peer_level->level_idc; encoder->x264param.rc.i_bitrate = MIN (encoder->x264param.rc.i_bitrate, peer_level->bitrate); encoder->x264param.rc.i_vbv_max_bitrate = MIN (encoder->x264param.rc.i_vbv_max_bitrate, peer_level->bitrate); encoder->x264param.rc.i_vbv_buffer_size = MIN (encoder->x264param.rc.i_vbv_buffer_size, peer_level->cpb); encoder->x264param.analyse.i_mv_range = MIN (encoder->x264param.analyse.i_mv_range, peer_level->mv_range); if (peer_level->frame_only) { encoder->x264param.b_interlaced = FALSE; encoder->x264param.b_fake_interlaced = FALSE; } } if (GST_VIDEO_INFO_IS_INTERLACED (info)) { encoder->x264param.b_interlaced = TRUE; if (GST_VIDEO_INFO_INTERLACE_MODE (info) == GST_VIDEO_INTERLACE_MODE_MIXED) { encoder->x264param.b_pic_struct = TRUE; } if (GST_VIDEO_INFO_FIELD_ORDER (info) == GST_VIDEO_FIELD_ORDER_TOP_FIELD_FIRST) { encoder->x264param.b_tff = TRUE; } else { encoder->x264param.b_tff = FALSE; } } else { encoder->x264param.b_interlaced = FALSE; } /* Set 3D frame packing */ if (encoder->frame_packing != GST_VIDEO_MULTIVIEW_MODE_NONE) encoder->x264param.i_frame_packing = encoder->frame_packing; else encoder->x264param.i_frame_packing = gst_x264_enc_mview_mode_to_frame_packing (GST_VIDEO_INFO_MULTIVIEW_MODE (info)); GST_DEBUG_OBJECT (encoder, "Stereo frame packing = %d", encoder->x264param.i_frame_packing); encoder->reconfig = FALSE; GST_OBJECT_UNLOCK (encoder); encoder->x264enc = encoder->vtable->x264_encoder_open (&encoder->x264param); if (!encoder->x264enc) { GST_ELEMENT_ERROR (encoder, STREAM, ENCODE, ("Can not initialize x264 encoder."), (NULL)); return FALSE; } return TRUE; unlock_and_return: GST_OBJECT_UNLOCK (encoder); return FALSE; } /* gst_x264_enc_close_encoder * @encoder: Encoder which should close. * * Close x264 encoder. */ static void gst_x264_enc_close_encoder (GstX264Enc * encoder) { if (encoder->x264enc != NULL) { encoder->vtable->x264_encoder_close (encoder->x264enc); encoder->x264enc = NULL; } encoder->vtable = NULL; } static gboolean gst_x264_enc_set_profile_and_level (GstX264Enc * encoder, GstCaps * caps) { x264_nal_t *nal; int i_nal; int header_return; gint sps_ni = 0; guint8 *sps; GstStructure *s; const gchar *profile; GstCaps *allowed_caps; GstStructure *s2; const gchar *allowed_profile; header_return = encoder->vtable->x264_encoder_headers (encoder->x264enc, &nal, &i_nal); if (header_return < 0) { GST_ELEMENT_ERROR (encoder, STREAM, ENCODE, ("Encode x264 header failed."), ("x264_encoder_headers return code=%d", header_return)); return FALSE; } /* old x264 returns SEI, SPS and PPS, newer one has SEI last */ if (i_nal == 3 && nal[sps_ni].i_type != 7) sps_ni = 1; sps = nal[sps_ni].p_payload + 4; /* skip NAL unit type */ sps++; gst_codec_utils_h264_caps_set_level_and_profile (caps, sps, 3); /* Constrained baseline is a strict subset of baseline. If downstream * wanted baseline and we produced constrained baseline, we can just * set the profile to baseline in the caps to make negotiation happy. * Same goes for baseline as subset of main profile and main as a subset * of high profile. */ s = gst_caps_get_structure (caps, 0); profile = gst_structure_get_string (s, "profile"); allowed_caps = gst_pad_get_allowed_caps (GST_VIDEO_ENCODER_SRC_PAD (encoder)); if (allowed_caps == NULL) goto no_peer; if (!gst_caps_can_intersect (allowed_caps, caps)) { allowed_caps = gst_caps_make_writable (allowed_caps); allowed_caps = gst_caps_truncate (allowed_caps); s2 = gst_caps_get_structure (allowed_caps, 0); gst_structure_fixate_field_string (s2, "profile", profile); allowed_profile = gst_structure_get_string (s2, "profile"); if (!strcmp (allowed_profile, "high")) { if (!strcmp (profile, "constrained-baseline") || !strcmp (profile, "baseline") || !strcmp (profile, "main")) { gst_structure_set (s, "profile", G_TYPE_STRING, "high", NULL); GST_INFO_OBJECT (encoder, "downstream requested high profile, but " "encoder will now output %s profile (which is a subset), due " "to how it's been configured", profile); } } else if (!strcmp (allowed_profile, "main")) { if (!strcmp (profile, "constrained-baseline") || !strcmp (profile, "baseline")) { gst_structure_set (s, "profile", G_TYPE_STRING, "main", NULL); GST_INFO_OBJECT (encoder, "downstream requested main profile, but " "encoder will now output %s profile (which is a subset), due " "to how it's been configured", profile); } } else if (!strcmp (allowed_profile, "baseline")) { if (!strcmp (profile, "constrained-baseline")) gst_structure_set (s, "profile", G_TYPE_STRING, "baseline", NULL); } } gst_caps_unref (allowed_caps); no_peer: return TRUE; } /* * Returns: Buffer with the stream headers. */ static GstBuffer * gst_x264_enc_header_buf (GstX264Enc * encoder) { GstBuffer *buf; x264_nal_t *nal; int i_nal; int header_return; int i_size; int nal_size; guint8 *buffer, *sps; gulong buffer_size; gint sei_ni = 2, sps_ni = 0, pps_ni = 1; if (G_UNLIKELY (encoder->x264enc == NULL)) return NULL; /* Create avcC header. */ header_return = encoder->vtable->x264_encoder_headers (encoder->x264enc, &nal, &i_nal); if (header_return < 0) { GST_ELEMENT_ERROR (encoder, STREAM, ENCODE, ("Encode x264 header failed."), ("x264_encoder_headers return code=%d", header_return)); return NULL; } /* old x264 returns SEI, SPS and PPS, newer one has SEI last */ if (i_nal == 3 && nal[sps_ni].i_type != 7) { sei_ni = 0; sps_ni = 1; pps_ni = 2; } /* x264 is expected to return an SEI (some identification info), * and SPS and PPS */ if (i_nal != 3 || nal[sps_ni].i_type != 7 || nal[pps_ni].i_type != 8 || nal[sps_ni].i_payload < 4 || nal[pps_ni].i_payload < 1) { GST_ELEMENT_ERROR (encoder, STREAM, ENCODE, (NULL), ("Unexpected x264 header.")); return NULL; } GST_MEMDUMP ("SEI", nal[sei_ni].p_payload, nal[sei_ni].i_payload); GST_MEMDUMP ("SPS", nal[sps_ni].p_payload, nal[sps_ni].i_payload); GST_MEMDUMP ("PPS", nal[pps_ni].p_payload, nal[pps_ni].i_payload); /* nal payloads with emulation_prevention_three_byte, and some header data */ buffer_size = (nal[sps_ni].i_payload + nal[pps_ni].i_payload) * 4 + 100; buffer = g_malloc (buffer_size); sps = nal[sps_ni].p_payload + 4; /* skip NAL unit type */ sps++; buffer[0] = 1; /* AVC Decoder Configuration Record ver. 1 */ buffer[1] = sps[0]; /* profile_idc */ buffer[2] = sps[1]; /* profile_compability */ buffer[3] = sps[2]; /* level_idc */ buffer[4] = 0xfc | (4 - 1); /* nal_length_size_minus1 */ i_size = 5; buffer[i_size++] = 0xe0 | 1; /* number of SPSs */ nal_size = nal[sps_ni].i_payload - 4; memcpy (buffer + i_size + 2, nal[sps_ni].p_payload + 4, nal_size); GST_WRITE_UINT16_BE (buffer + i_size, nal_size); i_size += nal_size + 2; buffer[i_size++] = 1; /* number of PPSs */ nal_size = nal[pps_ni].i_payload - 4; memcpy (buffer + i_size + 2, nal[pps_ni].p_payload + 4, nal_size); GST_WRITE_UINT16_BE (buffer + i_size, nal_size); i_size += nal_size + 2; buf = gst_buffer_new_and_alloc (i_size); gst_buffer_fill (buf, 0, buffer, i_size); GST_MEMDUMP ("header", buffer, i_size); g_free (buffer); return buf; } /* gst_x264_enc_set_src_caps * Returns: TRUE on success. */ static gboolean gst_x264_enc_set_src_caps (GstX264Enc * encoder, GstCaps * caps) { GstCaps *outcaps; GstStructure *structure; GstVideoCodecState *state; GstTagList *tags; outcaps = gst_caps_new_empty_simple ("video/x-h264"); structure = gst_caps_get_structure (outcaps, 0); if (encoder->current_byte_stream == GST_X264_ENC_STREAM_FORMAT_FROM_PROPERTY) { if (encoder->byte_stream) { encoder->current_byte_stream = GST_X264_ENC_STREAM_FORMAT_BYTE_STREAM; } else { encoder->current_byte_stream = GST_X264_ENC_STREAM_FORMAT_AVC; } } if (encoder->current_byte_stream == GST_X264_ENC_STREAM_FORMAT_AVC) { GstBuffer *buf = gst_x264_enc_header_buf (encoder); if (buf != NULL) { gst_caps_set_simple (outcaps, "codec_data", GST_TYPE_BUFFER, buf, NULL); gst_buffer_unref (buf); } gst_structure_set (structure, "stream-format", G_TYPE_STRING, "avc", NULL); } else { gst_structure_set (structure, "stream-format", G_TYPE_STRING, "byte-stream", NULL); } gst_structure_set (structure, "alignment", G_TYPE_STRING, "au", NULL); if (!gst_x264_enc_set_profile_and_level (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); /* If set, local frame packing setting overrides any upstream config */ switch (encoder->frame_packing) { case 0: GST_VIDEO_INFO_MULTIVIEW_MODE (&state->info) = GST_VIDEO_MULTIVIEW_MODE_CHECKERBOARD; break; case 1: GST_VIDEO_INFO_MULTIVIEW_MODE (&state->info) = GST_VIDEO_MULTIVIEW_MODE_COLUMN_INTERLEAVED; break; case 2: GST_VIDEO_INFO_MULTIVIEW_MODE (&state->info) = GST_VIDEO_MULTIVIEW_MODE_ROW_INTERLEAVED; break; case 3: GST_VIDEO_INFO_MULTIVIEW_MODE (&state->info) = GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE; break; case 4: GST_VIDEO_INFO_MULTIVIEW_MODE (&state->info) = GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM; break; case 5: GST_VIDEO_INFO_MULTIVIEW_MODE (&state->info) = GST_VIDEO_MULTIVIEW_MODE_FRAME_BY_FRAME; break; default: break; } gst_video_codec_state_unref (state); tags = gst_tag_list_new_empty (); gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_ENCODER, "x264", GST_TAG_ENCODER_VERSION, X264_BUILD, GST_TAG_MAXIMUM_BITRATE, encoder->bitrate * 1024, GST_TAG_NOMINAL_BITRATE, encoder->bitrate * 1024, 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_x264_enc_set_latency (GstX264Enc * encoder) { GstVideoInfo *info = &encoder->input_state->info; gint max_delayed_frames; GstClockTime latency; max_delayed_frames = encoder->vtable->x264_encoder_maximum_delayed_frames (encoder->x264enc); 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_x264_enc_set_format (GstVideoEncoder * video_enc, GstVideoCodecState * state) { GstX264Enc *encoder = GST_X264_ENC (video_enc); GstVideoInfo *info = &state->info; GstCaps *template_caps; GstCaps *allowed_caps = NULL; /* If the encoder is initialized, do not reinitialize it again if not * necessary */ if (encoder->x264enc) { 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_x264_enc_flush_frames (encoder, TRUE); encoder->sps_id++; } if (encoder->input_state) gst_video_codec_state_unref (encoder->input_state); encoder->input_state = gst_video_codec_state_ref (state); encoder->peer_profile = NULL; encoder->peer_intra_profile = FALSE; encoder->peer_level_idc = -1; template_caps = gst_static_pad_template_get_caps (&src_factory); allowed_caps = gst_pad_get_allowed_caps (GST_VIDEO_ENCODER_SRC_PAD (encoder)); /* Output byte-stream if downstream has ANY caps, it's what people expect, * and it makes more sense too */ if (allowed_caps == template_caps) { GST_INFO_OBJECT (encoder, "downstream has ANY caps, outputting byte-stream"); encoder->current_byte_stream = GST_X264_ENC_STREAM_FORMAT_BYTE_STREAM; g_string_append_printf (encoder->option_string, ":annexb=1"); gst_caps_unref (allowed_caps); } else if (allowed_caps) { GstStructure *s; const gchar *profile; const gchar *level; const gchar *stream_format; if (gst_caps_is_empty (allowed_caps)) { gst_caps_unref (allowed_caps); gst_caps_unref (template_caps); return FALSE; } allowed_caps = gst_caps_make_writable (allowed_caps); allowed_caps = gst_caps_fixate (allowed_caps); s = gst_caps_get_structure (allowed_caps, 0); profile = gst_structure_get_string (s, "profile"); if (profile) { /* FIXME - if libx264 ever adds support for FMO, ASO or redundant slices * make sure constrained profile has a separate case which disables * those */ if (g_str_has_suffix (profile, "-intra")) { encoder->peer_intra_profile = TRUE; } if (!strcmp (profile, "constrained-baseline") || !strcmp (profile, "baseline")) { encoder->peer_profile = "baseline"; } else if (g_str_has_prefix (profile, "high-10")) { encoder->peer_profile = "high10"; } else if (g_str_has_prefix (profile, "high-4:2:2")) { encoder->peer_profile = "high422"; } else if (g_str_has_prefix (profile, "high-4:4:4")) { encoder->peer_profile = "high444"; } else if (g_str_has_prefix (profile, "high")) { encoder->peer_profile = "high"; } else if (!strcmp (profile, "main")) { encoder->peer_profile = "main"; } else { g_assert_not_reached (); } } level = gst_structure_get_string (s, "level"); if (level) { encoder->peer_level_idc = gst_codec_utils_h264_get_level_idc (level); } stream_format = gst_structure_get_string (s, "stream-format"); encoder->current_byte_stream = GST_X264_ENC_STREAM_FORMAT_FROM_PROPERTY; if (stream_format) { if (!strcmp (stream_format, "avc")) { encoder->current_byte_stream = GST_X264_ENC_STREAM_FORMAT_AVC; g_string_append_printf (encoder->option_string, ":annexb=0"); } else if (!strcmp (stream_format, "byte-stream")) { encoder->current_byte_stream = GST_X264_ENC_STREAM_FORMAT_BYTE_STREAM; g_string_append_printf (encoder->option_string, ":annexb=1"); } else { /* means we have both in caps and _FROM_PROPERTY should be the option */ } } gst_caps_unref (allowed_caps); } gst_caps_unref (template_caps); if (!gst_x264_enc_init_encoder (encoder)) return FALSE; if (!gst_x264_enc_set_src_caps (encoder, state->caps)) { gst_x264_enc_close_encoder (encoder); return FALSE; } gst_x264_enc_set_latency (encoder); return TRUE; } static GstFlowReturn gst_x264_enc_finish (GstVideoEncoder * encoder) { gst_x264_enc_flush_frames (GST_X264_ENC (encoder), TRUE); return GST_FLOW_OK; } static gboolean gst_x264_enc_propose_allocation (GstVideoEncoder * encoder, GstQuery * query) { GstX264Enc *self = GST_X264_ENC (encoder); GstVideoInfo *info; guint num_buffers; gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL); if (!self->input_state) return FALSE; if (self->vtable == NULL) return FALSE; info = &self->input_state->info; num_buffers = self->vtable->x264_encoder_maximum_delayed_frames (self->x264enc) + 1; gst_query_add_allocation_pool (query, NULL, info->size, num_buffers, 0); return GST_VIDEO_ENCODER_CLASS (parent_class)->propose_allocation (encoder, query); } static void gst_x264_enc_add_cc (GstBuffer * buffer, x264_picture_t * pic_in) { GstVideoCaptionMeta *cc_meta; gpointer iter = NULL; while ((cc_meta = (GstVideoCaptionMeta *) gst_buffer_iterate_meta_filtered (buffer, &iter, GST_VIDEO_CAPTION_META_API_TYPE))) { guint i = pic_in->extra_sei.num_payloads; if (cc_meta->caption_type != GST_VIDEO_CAPTION_TYPE_CEA708_RAW) continue; pic_in->extra_sei.num_payloads += 1; if (!pic_in->extra_sei.payloads) pic_in->extra_sei.payloads = g_new0 (x264_sei_payload_t, 1); else pic_in->extra_sei.payloads = g_renew (x264_sei_payload_t, pic_in->extra_sei.payloads, pic_in->extra_sei.num_payloads); pic_in->extra_sei.sei_free = g_free; pic_in->extra_sei.payloads[i].payload_size = cc_meta->size + 11; pic_in->extra_sei.payloads[i].payload = g_malloc0 (pic_in->extra_sei.payloads[i].payload_size); pic_in->extra_sei.payloads[i].payload_type = 4; /* Registered user data */ memcpy (pic_in->extra_sei.payloads[i].payload + 10, cc_meta->data, cc_meta->size); pic_in->extra_sei.payloads[i].payload[0] = 181; /* 8-bits itu_t_t35_country_code */ pic_in->extra_sei.payloads[i].payload[1] = 0; /* 16-bits itu_t_t35_provider_code */ pic_in->extra_sei.payloads[i].payload[2] = 49; pic_in->extra_sei.payloads[i].payload[3] = 'G'; /* 32-bits ATSC_user_identifier */ pic_in->extra_sei.payloads[i].payload[4] = 'A'; pic_in->extra_sei.payloads[i].payload[5] = '9'; pic_in->extra_sei.payloads[i].payload[6] = '4'; pic_in->extra_sei.payloads[i].payload[7] = 3; /* 8-bits ATSC1_data_user_data_type_code */ /* 8-bits: * 1 bit process_em_data_flag (0) * 1 bit process_cc_data_flag (1) * 1 bit additional_data_flag (0) * 5-bits cc_count */ pic_in->extra_sei.payloads[i].payload[8] = ((cc_meta->size / 3) & 0x1f) | 0x40; pic_in->extra_sei.payloads[i].payload[9] = 0; /* 8 bits em_data, unused */ pic_in->extra_sei.payloads[i].payload[cc_meta->size + 10] = 255; /* 8 marker bits */ } } /* chain function * this function does the actual processing */ static GstFlowReturn gst_x264_enc_handle_frame (GstVideoEncoder * video_enc, GstVideoCodecFrame * frame) { GstX264Enc *encoder = GST_X264_ENC (video_enc); GstVideoInfo *info = &encoder->input_state->info; GstFlowReturn ret; x264_picture_t pic_in; gint i_nal, i; FrameData *fdata; gint nplanes = encoder->x264_nplanes; if (G_UNLIKELY (encoder->x264enc == NULL)) goto not_inited; /* create x264_picture_t from the buffer */ /* mostly taken from mplayer (file ve_x264.c) */ /* set up input picture */ memset (&pic_in, 0, sizeof (pic_in)); fdata = gst_x264_enc_queue_frame (encoder, frame, info); if (!fdata) goto invalid_frame; pic_in.img.i_csp = encoder->x264param.i_csp; pic_in.img.i_plane = nplanes; for (i = 0; i < nplanes; i++) { pic_in.img.plane[i] = GST_VIDEO_FRAME_COMP_DATA (&fdata->vframe, i); pic_in.img.i_stride[i] = GST_VIDEO_FRAME_COMP_STRIDE (&fdata->vframe, i); } pic_in.i_type = X264_TYPE_AUTO; pic_in.i_pts = frame->pts; pic_in.opaque = GINT_TO_POINTER (frame->system_frame_number); if (GST_VIDEO_INFO_INTERLACE_MODE (info) == GST_VIDEO_INTERLACE_MODE_MIXED) { if ((fdata->vframe.flags & GST_VIDEO_FRAME_FLAG_INTERLACED) == 0) { pic_in.i_pic_struct = PIC_STRUCT_PROGRESSIVE; } else if ((fdata->vframe.flags & GST_VIDEO_FRAME_FLAG_RFF) != 0) { if ((fdata->vframe.flags & GST_VIDEO_FRAME_FLAG_TFF) != 0) { pic_in.i_pic_struct = PIC_STRUCT_TOP_BOTTOM_TOP; } else { pic_in.i_pic_struct = PIC_STRUCT_BOTTOM_TOP_BOTTOM; } } else { if ((fdata->vframe.flags & GST_VIDEO_FRAME_FLAG_TFF) != 0) { pic_in.i_pic_struct = PIC_STRUCT_TOP_BOTTOM; } else { pic_in.i_pic_struct = PIC_STRUCT_BOTTOM_TOP; } } } gst_x264_enc_add_cc (frame->input_buffer, &pic_in); ret = gst_x264_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_x264_enc_encode_frame (GstX264Enc * encoder, x264_picture_t * pic_in, GstVideoCodecFrame * input_frame, int *i_nal, gboolean send) { GstVideoCodecFrame *frame = NULL; GstBuffer *out_buf = NULL; x264_picture_t pic_out; x264_nal_t *nal; int i_size; int encoder_return; GstFlowReturn ret = GST_FLOW_OK; guint8 *data; gboolean update_latency = FALSE; if (G_UNLIKELY (encoder->x264enc == NULL)) { if (input_frame) gst_video_codec_frame_unref (input_frame); return GST_FLOW_NOT_NEGOTIATED; } GST_OBJECT_LOCK (encoder); if (encoder->reconfig) { encoder->reconfig = FALSE; if (encoder->vtable->x264_encoder_reconfig (encoder->x264enc, &encoder->x264param) < 0) GST_WARNING_OBJECT (encoder, "Could not reconfigure"); 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"); if (encoder->intra_refresh) encoder->vtable->x264_encoder_intra_refresh (encoder->x264enc); else pic_in->i_type = X264_TYPE_IDR; } } GST_OBJECT_UNLOCK (encoder); if (G_UNLIKELY (update_latency)) gst_x264_enc_set_latency (encoder); encoder_return = encoder->vtable->x264_encoder_encode (encoder->x264enc, &nal, i_nal, pic_in, &pic_out); if (encoder_return < 0) { GST_ELEMENT_ERROR (encoder, STREAM, ENCODE, ("Encode x264 frame failed."), ("x264_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; goto out; } i_size = encoder_return; data = nal[0].p_payload; frame = gst_video_encoder_get_frame (GST_VIDEO_ENCODER (encoder), GPOINTER_TO_INT (pic_out.opaque)); g_assert (frame || !send); if (!send || !frame) { ret = GST_FLOW_OK; goto out; } out_buf = gst_buffer_new_allocate (NULL, i_size, NULL); gst_buffer_fill (out_buf, 0, data, i_size); frame->output_buffer = out_buf; GST_LOG_OBJECT (encoder, "output: dts %" G_GINT64_FORMAT " pts %" G_GINT64_FORMAT, (gint64) pic_out.i_dts, (gint64) pic_out.i_pts); /* we want to know if x264 is messing around with this */ g_assert (frame->pts == pic_out.i_pts); frame->dts = pic_out.i_dts; frame->pts = pic_out.i_pts; if (pic_out.b_keyframe) { GST_DEBUG_OBJECT (encoder, "Output keyframe"); GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (frame); } out: if (frame) { gst_x264_enc_dequeue_frame (encoder, frame); ret = gst_video_encoder_finish_frame (GST_VIDEO_ENCODER (encoder), frame); } return ret; } static void gst_x264_enc_flush_frames (GstX264Enc * encoder, gboolean send) { GstFlowReturn flow_ret; gint i_nal; /* first send the remaining frames */ if (encoder->x264enc) do { flow_ret = gst_x264_enc_encode_frame (encoder, NULL, NULL, &i_nal, send); } while (flow_ret == GST_FLOW_OK && encoder->vtable->x264_encoder_delayed_frames (encoder->x264enc) > 0); } static void gst_x264_enc_reconfig (GstX264Enc * encoder) { if (!encoder->vtable) return; switch (encoder->pass) { case GST_X264_ENC_PASS_QUAL: encoder->x264param.rc.f_rf_constant = encoder->quantizer; encoder->x264param.rc.i_vbv_max_bitrate = encoder->bitrate; encoder->x264param.rc.i_vbv_buffer_size = encoder->x264param.rc.i_vbv_max_bitrate * encoder->vbv_buf_capacity / 1000; break; case GST_X264_ENC_PASS_CBR: case GST_X264_ENC_PASS_PASS1: case GST_X264_ENC_PASS_PASS2: case GST_X264_ENC_PASS_PASS3: default: encoder->x264param.rc.i_bitrate = encoder->bitrate; encoder->x264param.rc.i_vbv_max_bitrate = encoder->bitrate; encoder->x264param.rc.i_vbv_buffer_size = encoder->x264param.rc.i_vbv_max_bitrate * encoder->vbv_buf_capacity / 1000; break; } encoder->reconfig = TRUE; } static void gst_x264_enc_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstX264Enc *encoder; GstState state; const gchar *partitions = NULL; encoder = GST_X264_ENC (object); GST_OBJECT_LOCK (encoder); /* state at least matters for sps, bytestream, pass, * and so by extension ... */ 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 ARG_PASS: encoder->pass = g_value_get_enum (value); break; case ARG_QUANTIZER: encoder->quantizer = g_value_get_uint (value); gst_x264_enc_reconfig (encoder); break; case ARG_BITRATE: encoder->bitrate = g_value_get_uint (value); gst_x264_enc_reconfig (encoder); break; case ARG_VBV_BUF_CAPACITY: encoder->vbv_buf_capacity = g_value_get_uint (value); gst_x264_enc_reconfig (encoder); break; case ARG_SPEED_PRESET: encoder->speed_preset = g_value_get_enum (value); break; case ARG_PSY_TUNE: encoder->psy_tune = g_value_get_enum (value); break; case ARG_TUNE: encoder->tune = g_value_get_flags (value); break; case ARG_OPTION_STRING: g_string_assign (encoder->option_string_prop, g_value_get_string (value)); break; case ARG_THREADS: encoder->threads = g_value_get_uint (value); g_string_append_printf (encoder->option_string, ":threads=%d", encoder->threads); break; case ARG_SLICED_THREADS: encoder->sliced_threads = g_value_get_boolean (value); g_string_append_printf (encoder->option_string, ":sliced-threads=%d", encoder->sliced_threads); break; case ARG_SYNC_LOOKAHEAD: encoder->sync_lookahead = g_value_get_int (value); g_string_append_printf (encoder->option_string, ":sync-lookahead=%d", encoder->sync_lookahead); break; case ARG_MULTIPASS_CACHE_FILE: g_free (encoder->mp_cache_file); encoder->mp_cache_file = g_value_dup_string (value); g_string_append_printf (encoder->option_string, ":stats=%s", encoder->mp_cache_file); break; case ARG_BYTE_STREAM: encoder->byte_stream = g_value_get_boolean (value); g_string_append_printf (encoder->option_string, ":annexb=%d", encoder->byte_stream); break; case ARG_INTRA_REFRESH: encoder->intra_refresh = g_value_get_boolean (value); g_string_append_printf (encoder->option_string, ":intra-refresh=%d", encoder->intra_refresh); break; case ARG_ME: encoder->me = g_value_get_enum (value); g_string_append_printf (encoder->option_string, ":me=%s", x264_motion_est_names[encoder->me]); break; case ARG_SUBME: encoder->subme = g_value_get_uint (value); g_string_append_printf (encoder->option_string, ":subme=%d", encoder->subme); break; case ARG_ANALYSE: encoder->analyse = g_value_get_flags (value); partitions = gst_x264_enc_build_partitions (encoder->analyse); if (partitions) { g_string_append_printf (encoder->option_string, ":partitions=%s", partitions); g_free ((gpointer) partitions); } break; case ARG_DCT8x8: encoder->dct8x8 = g_value_get_boolean (value); g_string_append_printf (encoder->option_string, ":8x8dct=%d", encoder->dct8x8); break; case ARG_REF: encoder->ref = g_value_get_uint (value); g_string_append_printf (encoder->option_string, ":ref=%d", encoder->ref); break; case ARG_BFRAMES: encoder->bframes = g_value_get_uint (value); g_string_append_printf (encoder->option_string, ":bframes=%d", encoder->bframes); break; case ARG_B_ADAPT: encoder->b_adapt = g_value_get_boolean (value); g_string_append_printf (encoder->option_string, ":b-adapt=%d", encoder->b_adapt); break; case ARG_B_PYRAMID: encoder->b_pyramid = g_value_get_boolean (value); g_string_append_printf (encoder->option_string, ":b-pyramid=%s", x264_b_pyramid_names[encoder->b_pyramid]); break; case ARG_WEIGHTB: encoder->weightb = g_value_get_boolean (value); g_string_append_printf (encoder->option_string, ":weightb=%d", encoder->weightb); break; case ARG_SPS_ID: encoder->sps_id = g_value_get_uint (value); g_string_append_printf (encoder->option_string, ":sps-id=%d", encoder->sps_id); break; case ARG_AU_NALU: encoder->au_nalu = g_value_get_boolean (value); g_string_append_printf (encoder->option_string, ":aud=%d", encoder->au_nalu); break; case ARG_TRELLIS: encoder->trellis = g_value_get_boolean (value); g_string_append_printf (encoder->option_string, ":trellis=%d", encoder->trellis); break; case ARG_KEYINT_MAX: encoder->keyint_max = g_value_get_uint (value); g_string_append_printf (encoder->option_string, ":keyint=%d", encoder->keyint_max); break; case ARG_CABAC: encoder->cabac = g_value_get_boolean (value); g_string_append_printf (encoder->option_string, ":cabac=%d", encoder->cabac); break; case ARG_QP_MIN: encoder->qp_min = g_value_get_uint (value); g_string_append_printf (encoder->option_string, ":qpmin=%d", encoder->qp_min); break; case ARG_QP_MAX: encoder->qp_max = g_value_get_uint (value); g_string_append_printf (encoder->option_string, ":qpmax=%d", encoder->qp_max); break; case ARG_QP_STEP: encoder->qp_step = g_value_get_uint (value); g_string_append_printf (encoder->option_string, ":qpstep=%d", encoder->qp_step); break; case ARG_IP_FACTOR: encoder->ip_factor = g_value_get_float (value); g_string_append_printf (encoder->option_string, ":ip-factor=%f", encoder->ip_factor); break; case ARG_PB_FACTOR: encoder->pb_factor = g_value_get_float (value); g_string_append_printf (encoder->option_string, ":pb-factor=%f", encoder->pb_factor); break; case ARG_RC_MB_TREE: encoder->mb_tree = g_value_get_boolean (value); g_string_append_printf (encoder->option_string, ":mbtree=%d", encoder->mb_tree); break; case ARG_RC_LOOKAHEAD: encoder->rc_lookahead = g_value_get_int (value); g_string_append_printf (encoder->option_string, ":rc-lookahead=%d", encoder->rc_lookahead); break; case ARG_NR: encoder->noise_reduction = g_value_get_uint (value); g_string_append_printf (encoder->option_string, ":nr=%d", encoder->noise_reduction); break; case ARG_INTERLACED: encoder->interlaced = g_value_get_boolean (value); break; case ARG_FRAME_PACKING: encoder->frame_packing = g_value_get_enum (value); break; case ARG_INSERT_VUI: encoder->insert_vui = g_value_get_boolean (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } GST_OBJECT_UNLOCK (encoder); return; /* ERROR */ wrong_state: { GST_WARNING_OBJECT (encoder, "setting property in wrong state"); GST_OBJECT_UNLOCK (encoder); } } static void gst_x264_enc_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstX264Enc *encoder; encoder = GST_X264_ENC (object); GST_OBJECT_LOCK (encoder); switch (prop_id) { case ARG_THREADS: g_value_set_uint (value, encoder->threads); break; case ARG_SLICED_THREADS: g_value_set_boolean (value, encoder->sliced_threads); break; case ARG_SYNC_LOOKAHEAD: g_value_set_int (value, encoder->sync_lookahead); break; case ARG_PASS: g_value_set_enum (value, encoder->pass); break; case ARG_QUANTIZER: g_value_set_uint (value, encoder->quantizer); break; case ARG_MULTIPASS_CACHE_FILE: g_value_set_string (value, encoder->mp_cache_file); break; case ARG_BYTE_STREAM: g_value_set_boolean (value, encoder->byte_stream); break; case ARG_BITRATE: g_value_set_uint (value, encoder->bitrate); break; case ARG_INTRA_REFRESH: g_value_set_boolean (value, encoder->intra_refresh); break; case ARG_VBV_BUF_CAPACITY: g_value_set_uint (value, encoder->vbv_buf_capacity); break; case ARG_ME: g_value_set_enum (value, encoder->me); break; case ARG_SUBME: g_value_set_uint (value, encoder->subme); break; case ARG_ANALYSE: g_value_set_flags (value, encoder->analyse); break; case ARG_DCT8x8: g_value_set_boolean (value, encoder->dct8x8); break; case ARG_REF: g_value_set_uint (value, encoder->ref); break; case ARG_BFRAMES: g_value_set_uint (value, encoder->bframes); break; case ARG_B_ADAPT: g_value_set_boolean (value, encoder->b_adapt); break; case ARG_B_PYRAMID: g_value_set_boolean (value, encoder->b_pyramid); break; case ARG_WEIGHTB: g_value_set_boolean (value, encoder->weightb); break; case ARG_SPS_ID: g_value_set_uint (value, encoder->sps_id); break; case ARG_AU_NALU: g_value_set_boolean (value, encoder->au_nalu); break; case ARG_TRELLIS: g_value_set_boolean (value, encoder->trellis); break; case ARG_KEYINT_MAX: g_value_set_uint (value, encoder->keyint_max); break; case ARG_QP_MIN: g_value_set_uint (value, encoder->qp_min); break; case ARG_QP_MAX: g_value_set_uint (value, encoder->qp_max); break; case ARG_QP_STEP: g_value_set_uint (value, encoder->qp_step); break; case ARG_CABAC: g_value_set_boolean (value, encoder->cabac); break; case ARG_IP_FACTOR: g_value_set_float (value, encoder->ip_factor); break; case ARG_PB_FACTOR: g_value_set_float (value, encoder->pb_factor); break; case ARG_RC_MB_TREE: g_value_set_boolean (value, encoder->mb_tree); break; case ARG_RC_LOOKAHEAD: g_value_set_int (value, encoder->rc_lookahead); break; case ARG_NR: g_value_set_uint (value, encoder->noise_reduction); break; case ARG_INTERLACED: g_value_set_boolean (value, encoder->interlaced); break; case ARG_SPEED_PRESET: g_value_set_enum (value, encoder->speed_preset); break; case ARG_PSY_TUNE: g_value_set_enum (value, encoder->psy_tune); break; case ARG_TUNE: g_value_set_flags (value, encoder->tune); break; case ARG_OPTION_STRING: g_value_set_string (value, encoder->option_string_prop->str); break; case ARG_FRAME_PACKING: g_value_set_enum (value, encoder->frame_packing); break; case ARG_INSERT_VUI: g_value_set_boolean (value, encoder->insert_vui); 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 (x264_enc_debug, "x264enc", 0, "h264 encoding element"); GST_INFO ("linked against x264 build: %u", X264_BUILD); /* Initialize the static GstX264EncVTable which is overriden in load_x264() * if needed. We can't initialize statically because these values are not * constant on Windows. */ default_vtable.module = NULL; #if X264_BUILD < 153 default_vtable.x264_bit_depth = &x264_bit_depth; #endif default_vtable.x264_chroma_format = &x264_chroma_format; default_vtable.x264_encoder_close = x264_encoder_close; default_vtable.x264_encoder_delayed_frames = x264_encoder_delayed_frames; default_vtable.x264_encoder_encode = x264_encoder_encode; default_vtable.x264_encoder_headers = x264_encoder_headers; default_vtable.x264_encoder_intra_refresh = x264_encoder_intra_refresh; default_vtable.x264_encoder_maximum_delayed_frames = x264_encoder_maximum_delayed_frames; default_vtable.x264_encoder_open = x264_encoder_open; default_vtable.x264_encoder_reconfig = x264_encoder_reconfig; default_vtable.x264_levels = &x264_levels; default_vtable.x264_param_apply_fastfirstpass = x264_param_apply_fastfirstpass; default_vtable.x264_param_apply_profile = x264_param_apply_profile; default_vtable.x264_param_default_preset = x264_param_default_preset; default_vtable.x264_param_parse = x264_param_parse; if (!load_x264_libraries ()) return FALSE; return gst_element_register (plugin, "x264enc", GST_RANK_PRIMARY, GST_TYPE_X264_ENC); } GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, x264, "libx264-based H264 plugins", plugin_init, VERSION, "GPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)