3 * Copyright (c) 2008,2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
22 * SECTION:element-flvmux
24 * flvmux muxes different streams into an FLV file.
27 * <title>Example launch line</title>
29 * gst-launch -v filesrc location=/path/to/audio ! decodebin2 ! queue ! flvmux name=m ! filesink location=file.flv filesrc location=/path/to/video ! decodebin2 ! queue ! m.
30 * ]| This pipeline muxes an audio and video file into a single FLV file.
41 #include "gstflvmux.h"
44 GST_DEBUG_CATEGORY_STATIC (flvmux_debug);
45 #define GST_CAT_DEFAULT flvmux_debug
53 #define DEFAULT_STREAMABLE FALSE
54 #define MAX_INDEX_ENTRIES 128
56 static GstStaticPadTemplate src_templ = GST_STATIC_PAD_TEMPLATE ("src",
59 GST_STATIC_CAPS ("video/x-flv")
62 static GstStaticPadTemplate videosink_templ = GST_STATIC_PAD_TEMPLATE ("video",
65 GST_STATIC_CAPS ("video/x-flash-video; "
66 "video/x-flash-screen; "
67 "video/x-vp6-flash; " "video/x-vp6-alpha; "
68 "video/x-h264, stream-format=avc;")
71 static GstStaticPadTemplate audiosink_templ = GST_STATIC_PAD_TEMPLATE ("audio",
75 ("audio/x-adpcm, layout = (string) swf, channels = (int) { 1, 2 }, rate = (int) { 5512, 11025, 22050, 44100 }; "
76 "audio/mpeg, mpegversion = (int) 1, layer = (int) 3, channels = (int) { 1, 2 }, rate = (int) { 5512, 8000, 11025, 22050, 44100 }, parsed = (boolean) TRUE; "
77 "audio/mpeg, mpegversion = (int) { 2, 4 }, framed = (boolean) TRUE; "
78 "audio/x-nellymoser, channels = (int) { 1, 2 }, rate = (int) { 5512, 8000, 11025, 16000, 22050, 44100 }; "
79 "audio/x-raw-int, endianness = (int) LITTLE_ENDIAN, channels = (int) { 1, 2 }, width = (int) 8, depth = (int) 8, rate = (int) { 5512, 11025, 22050, 44100 }, signed = (boolean) FALSE; "
80 "audio/x-raw-int, endianness = (int) LITTLE_ENDIAN, channels = (int) { 1, 2 }, width = (int) 16, depth = (int) 16, rate = (int) { 5512, 11025, 22050, 44100 }, signed = (boolean) TRUE; "
81 "audio/x-alaw, channels = (int) { 1, 2 }, rate = (int) { 5512, 11025, 22050, 44100 }; "
82 "audio/x-mulaw, channels = (int) { 1, 2 }, rate = (int) { 5512, 11025, 22050, 44100 }; "
83 "audio/x-speex, channels = (int) { 1, 2 }, rate = (int) { 5512, 11025, 22050, 44100 };")
86 #define gst_flv_mux_parent_class parent_class
87 G_DEFINE_TYPE_WITH_CODE (GstFlvMux, gst_flv_mux, GST_TYPE_ELEMENT,
88 G_IMPLEMENT_INTERFACE (GST_TYPE_TAG_SETTER, NULL));
90 static void gst_flv_mux_finalize (GObject * object);
92 gst_flv_mux_handle_buffer (GstCollectPads2 * pads, GstCollectData2 * cdata,
93 GstBuffer * buf, gpointer user_data);
95 gst_flv_mux_handle_sink_event (GstCollectPads2 * pads, GstCollectData2 * data,
96 GstEvent * event, gpointer user_data);
98 static gboolean gst_flv_mux_handle_src_event (GstPad * pad, GstObject * parent,
100 static GstPad *gst_flv_mux_request_new_pad (GstElement * element,
101 GstPadTemplate * templ, const gchar * req_name, const GstCaps * caps);
102 static void gst_flv_mux_release_pad (GstElement * element, GstPad * pad);
104 static gboolean gst_flv_mux_video_pad_setcaps (GstPad * pad, GstCaps * caps);
105 static gboolean gst_flv_mux_audio_pad_setcaps (GstPad * pad, GstCaps * caps);
107 static void gst_flv_mux_get_property (GObject * object,
108 guint prop_id, GValue * value, GParamSpec * pspec);
109 static void gst_flv_mux_set_property (GObject * object,
110 guint prop_id, const GValue * value, GParamSpec * pspec);
112 static GstStateChangeReturn
113 gst_flv_mux_change_state (GstElement * element, GstStateChange transition);
115 static void gst_flv_mux_reset (GstElement * element);
116 static void gst_flv_mux_reset_pad (GstFlvMux * mux, GstFlvPad * pad,
123 } GstFlvMuxIndexEntry;
126 gst_flv_mux_index_entry_free (GstFlvMuxIndexEntry * entry)
128 g_slice_free (GstFlvMuxIndexEntry, entry);
132 _gst_buffer_new_wrapped (gpointer mem, gsize size, GFreeFunc free_func)
136 buf = gst_buffer_new ();
137 gst_buffer_take_memory (buf, -1,
138 gst_memory_new_wrapped (free_func ? 0 : GST_MEMORY_FLAG_READONLY,
139 mem, free_func, size, 0, size));
145 _gst_buffer_new_and_alloc (gsize size, GstBuffer ** buffer, guint8 ** data)
147 g_return_if_fail (data != NULL);
148 g_return_if_fail (buffer != NULL);
150 *data = g_malloc (size);
151 *buffer = _gst_buffer_new_wrapped (*data, size, g_free);
155 gst_flv_mux_class_init (GstFlvMuxClass * klass)
157 GObjectClass *gobject_class;
158 GstElementClass *gstelement_class;
160 GST_DEBUG_CATEGORY_INIT (flvmux_debug, "flvmux", 0, "FLV muxer");
162 gobject_class = (GObjectClass *) klass;
163 gstelement_class = (GstElementClass *) klass;
165 gobject_class->get_property = gst_flv_mux_get_property;
166 gobject_class->set_property = gst_flv_mux_set_property;
167 gobject_class->finalize = gst_flv_mux_finalize;
169 /* FIXME: ideally the right mode of operation should be detected
170 * automatically using queries when parameter not specified. */
172 * GstFlvMux:streamable
174 * If True, the output will be streaming friendly. (ie without indexes and
179 g_object_class_install_property (gobject_class, PROP_STREAMABLE,
180 g_param_spec_boolean ("streamable", "streamable",
181 "If set to true, the output should be as if it is to be streamed "
182 "and hence no indexes written or duration written.",
183 DEFAULT_STREAMABLE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
185 gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_flv_mux_change_state);
186 gstelement_class->request_new_pad =
187 GST_DEBUG_FUNCPTR (gst_flv_mux_request_new_pad);
188 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_flv_mux_release_pad);
190 gst_element_class_add_pad_template (gstelement_class,
191 gst_static_pad_template_get (&videosink_templ));
192 gst_element_class_add_pad_template (gstelement_class,
193 gst_static_pad_template_get (&audiosink_templ));
194 gst_element_class_add_pad_template (gstelement_class,
195 gst_static_pad_template_get (&src_templ));
196 gst_element_class_set_details_simple (gstelement_class, "FLV muxer",
198 "Muxes video/audio streams into a FLV stream",
199 "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
201 GST_DEBUG_CATEGORY_INIT (flvmux_debug, "flvmux", 0, "FLV muxer");
205 gst_flv_mux_init (GstFlvMux * mux)
207 mux->srcpad = gst_pad_new_from_static_template (&src_templ, "src");
208 gst_pad_set_event_function (mux->srcpad, gst_flv_mux_handle_src_event);
209 gst_element_add_pad (GST_ELEMENT (mux), mux->srcpad);
212 mux->streamable = DEFAULT_STREAMABLE;
214 mux->new_tags = FALSE;
216 mux->collect = gst_collect_pads2_new ();
217 gst_collect_pads2_set_buffer_function (mux->collect,
218 GST_DEBUG_FUNCPTR (gst_flv_mux_handle_buffer), mux);
219 gst_collect_pads2_set_event_function (mux->collect,
220 GST_DEBUG_FUNCPTR (gst_flv_mux_handle_sink_event), mux);
221 gst_collect_pads2_set_clip_function (mux->collect,
222 GST_DEBUG_FUNCPTR (gst_collect_pads2_clip_running_time), mux);
224 gst_flv_mux_reset (GST_ELEMENT (mux));
228 gst_flv_mux_finalize (GObject * object)
230 GstFlvMux *mux = GST_FLV_MUX (object);
232 gst_object_unref (mux->collect);
234 G_OBJECT_CLASS (parent_class)->finalize (object);
238 gst_flv_mux_reset (GstElement * element)
240 GstFlvMux *mux = GST_FLV_MUX (element);
243 for (sl = mux->collect->data; sl != NULL; sl = g_slist_next (sl)) {
244 GstFlvPad *cpad = (GstFlvPad *) sl->data;
246 gst_flv_mux_reset_pad (mux, cpad, cpad->video);
249 g_list_foreach (mux->index, (GFunc) gst_flv_mux_index_entry_free, NULL);
250 g_list_free (mux->index);
254 mux->have_audio = mux->have_video = FALSE;
255 mux->duration = GST_CLOCK_TIME_NONE;
256 mux->new_tags = FALSE;
258 mux->state = GST_FLV_MUX_STATE_HEADER;
261 gst_tag_setter_reset_tags (GST_TAG_SETTER (mux));
265 gst_flv_mux_handle_src_event (GstPad * pad, GstObject * parent,
270 type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN;
274 /* disable seeking for now */
280 return gst_pad_event_default (pad, parent, event);
284 gst_flv_mux_handle_sink_event (GstCollectPads2 * pads, GstCollectData2 * data,
285 GstEvent * event, gpointer user_data)
287 GstFlvMux *mux = GST_FLV_MUX (user_data);
288 gboolean ret = FALSE;
290 switch (GST_EVENT_TYPE (event)) {
296 gst_event_parse_caps (event, &caps);
298 /* find stream data */
299 flvpad = (GstFlvPad *) data;
303 ret = gst_flv_mux_video_pad_setcaps (data->pad, caps);
305 ret = gst_flv_mux_audio_pad_setcaps (data->pad, caps);
308 gst_event_unref (event);
313 GstTagSetter *setter = GST_TAG_SETTER (mux);
314 const GstTagMergeMode mode = gst_tag_setter_get_tag_merge_mode (setter);
316 gst_event_parse_tag (event, &list);
317 gst_tag_setter_merge_tags (setter, list, mode);
318 mux->new_tags = TRUE;
320 gst_event_unref (event);
324 case GST_EVENT_SEGMENT:
325 gst_event_unref (event);
329 ret = gst_pad_event_default (data->pad, GST_OBJECT (mux), event);
337 gst_flv_mux_video_pad_setcaps (GstPad * pad, GstCaps * caps)
339 GstFlvMux *mux = GST_FLV_MUX (gst_pad_get_parent (pad));
340 GstFlvPad *cpad = (GstFlvPad *) gst_pad_get_element_private (pad);
344 s = gst_caps_get_structure (caps, 0);
346 if (strcmp (gst_structure_get_name (s), "video/x-flash-video") == 0) {
347 cpad->video_codec = 2;
348 } else if (strcmp (gst_structure_get_name (s), "video/x-flash-screen") == 0) {
349 cpad->video_codec = 3;
350 } else if (strcmp (gst_structure_get_name (s), "video/x-vp6-flash") == 0) {
351 cpad->video_codec = 4;
352 } else if (strcmp (gst_structure_get_name (s), "video/x-vp6-alpha") == 0) {
353 cpad->video_codec = 5;
354 } else if (strcmp (gst_structure_get_name (s), "video/x-h264") == 0) {
355 cpad->video_codec = 7;
360 if (ret && gst_structure_has_field (s, "codec_data")) {
361 const GValue *val = gst_structure_get_value (s, "codec_data");
364 cpad->video_codec_data = gst_buffer_ref (gst_value_get_buffer (val));
367 gst_object_unref (mux);
373 gst_flv_mux_audio_pad_setcaps (GstPad * pad, GstCaps * caps)
375 GstFlvMux *mux = GST_FLV_MUX (gst_pad_get_parent (pad));
376 GstFlvPad *cpad = (GstFlvPad *) gst_pad_get_element_private (pad);
380 s = gst_caps_get_structure (caps, 0);
382 if (strcmp (gst_structure_get_name (s), "audio/x-adpcm") == 0) {
383 const gchar *layout = gst_structure_get_string (s, "layout");
384 if (layout && strcmp (layout, "swf") == 0) {
385 cpad->audio_codec = 1;
389 } else if (strcmp (gst_structure_get_name (s), "audio/mpeg") == 0) {
392 if (gst_structure_get_int (s, "mpegversion", &mpegversion)) {
393 if (mpegversion == 1) {
396 if (gst_structure_get_int (s, "layer", &layer) && layer == 3) {
399 if (gst_structure_get_int (s, "rate", &rate) && rate == 8000)
400 cpad->audio_codec = 14;
402 cpad->audio_codec = 2;
406 } else if (mpegversion == 4 || mpegversion == 2) {
407 cpad->audio_codec = 10;
414 } else if (strcmp (gst_structure_get_name (s), "audio/x-nellymoser") == 0) {
417 if (gst_structure_get_int (s, "rate", &rate)
418 && gst_structure_get_int (s, "channels", &channels)) {
419 if (channels == 1 && rate == 16000)
420 cpad->audio_codec = 4;
421 else if (channels == 1 && rate == 8000)
422 cpad->audio_codec = 5;
424 cpad->audio_codec = 6;
426 cpad->audio_codec = 6;
428 } else if (strcmp (gst_structure_get_name (s), "audio/x-raw-int") == 0) {
431 if (gst_structure_get_int (s, "endianness", &endianness)
432 && endianness == G_LITTLE_ENDIAN)
433 cpad->audio_codec = 3;
436 } else if (strcmp (gst_structure_get_name (s), "audio/x-alaw") == 0) {
437 cpad->audio_codec = 7;
438 } else if (strcmp (gst_structure_get_name (s), "audio/x-mulaw") == 0) {
439 cpad->audio_codec = 8;
440 } else if (strcmp (gst_structure_get_name (s), "audio/x-speex") == 0) {
441 cpad->audio_codec = 11;
447 gint rate, channels, width;
449 if (gst_structure_get_int (s, "rate", &rate)) {
450 if (cpad->audio_codec == 10)
452 else if (rate == 5512)
454 else if (rate == 11025)
456 else if (rate == 22050)
458 else if (rate == 44100)
460 else if (rate == 8000 && (cpad->audio_codec == 5
461 || cpad->audio_codec == 14))
463 else if (rate == 16000 && cpad->audio_codec == 4)
467 } else if (cpad->audio_codec == 10) {
473 if (gst_structure_get_int (s, "channels", &channels)) {
474 if (cpad->audio_codec == 4 || cpad->audio_codec == 5
475 || cpad->audio_codec == 6)
477 else if (cpad->audio_codec == 10)
479 else if (channels == 1)
481 else if (channels == 2)
485 } else if (cpad->audio_codec == 4 || cpad->audio_codec == 5
486 || cpad->audio_codec == 6) {
488 } else if (cpad->audio_codec == 10) {
494 if (gst_structure_get_int (s, "width", &width)) {
495 if (cpad->audio_codec != 3)
499 else if (width == 16)
503 } else if (cpad->audio_codec != 3) {
510 if (ret && gst_structure_has_field (s, "codec_data")) {
511 const GValue *val = gst_structure_get_value (s, "codec_data");
514 cpad->audio_codec_data = gst_buffer_ref (gst_value_get_buffer (val));
517 gst_object_unref (mux);
523 gst_flv_mux_reset_pad (GstFlvMux * mux, GstFlvPad * cpad, gboolean video)
527 if (cpad->audio_codec_data)
528 gst_buffer_unref (cpad->audio_codec_data);
529 cpad->audio_codec_data = NULL;
530 cpad->audio_codec = G_MAXUINT;
531 cpad->rate = G_MAXUINT;
532 cpad->width = G_MAXUINT;
533 cpad->channels = G_MAXUINT;
535 if (cpad->video_codec_data)
536 gst_buffer_unref (cpad->video_codec_data);
537 cpad->video_codec_data = NULL;
538 cpad->video_codec = G_MAXUINT;
539 cpad->last_timestamp = 0;
543 gst_flv_mux_request_new_pad (GstElement * element,
544 GstPadTemplate * templ, const gchar * req_name, const GstCaps * caps)
546 GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
547 GstFlvMux *mux = GST_FLV_MUX (element);
550 const gchar *name = NULL;
553 if (mux->state != GST_FLV_MUX_STATE_HEADER) {
554 GST_WARNING_OBJECT (mux, "Can't request pads after writing header");
558 if (templ == gst_element_class_get_pad_template (klass, "audio")) {
559 if (mux->have_audio) {
560 GST_WARNING_OBJECT (mux, "Already have an audio pad");
563 mux->have_audio = TRUE;
566 } else if (templ == gst_element_class_get_pad_template (klass, "video")) {
567 if (mux->have_video) {
568 GST_WARNING_OBJECT (mux, "Already have a video pad");
571 mux->have_video = TRUE;
575 GST_WARNING_OBJECT (mux, "Invalid template");
579 pad = gst_pad_new_from_template (templ, name);
581 gst_collect_pads2_add_pad (mux->collect, pad, sizeof (GstFlvPad));
583 cpad->audio_codec_data = NULL;
584 cpad->video_codec_data = NULL;
585 gst_flv_mux_reset_pad (mux, cpad, video);
587 gst_pad_set_active (pad, TRUE);
588 gst_element_add_pad (element, pad);
594 gst_flv_mux_release_pad (GstElement * element, GstPad * pad)
596 GstFlvMux *mux = GST_FLV_MUX (GST_PAD_PARENT (pad));
597 GstFlvPad *cpad = (GstFlvPad *) gst_pad_get_element_private (pad);
599 gst_flv_mux_reset_pad (mux, cpad, cpad->video);
600 gst_collect_pads2_remove_pad (mux->collect, pad);
601 gst_element_remove_pad (element, pad);
605 gst_flv_mux_push (GstFlvMux * mux, GstBuffer * buffer)
607 /* pushing the buffer that rewrites the header will make it no longer be the
608 * total output size in bytes, but it doesn't matter at that point */
609 mux->byte_count += gst_buffer_get_size (buffer);
611 return gst_pad_push (mux->srcpad, buffer);
615 gst_flv_mux_create_header (GstFlvMux * mux)
620 _gst_buffer_new_and_alloc (9 + 4, &header, &data);
625 data[3] = 0x01; /* Version */
627 data[4] = (mux->have_audio << 2) | mux->have_video; /* flags */
628 GST_WRITE_UINT32_BE (data + 5, 9); /* data offset */
629 GST_WRITE_UINT32_BE (data + 9, 0); /* previous tag size */
635 gst_flv_mux_preallocate_index (GstFlvMux * mux)
639 gint preallocate_size;
641 /* preallocate index of size:
642 * - 'keyframes' ECMA array key: 2 + 9 = 11 bytes
643 * - nested ECMA array header, length and end marker: 8 bytes
644 * - 'times' and 'filepositions' keys: 22 bytes
645 * - two strict arrays headers and lengths: 10 bytes
646 * - each index entry: 18 bytes
648 preallocate_size = 11 + 8 + 22 + 10 + MAX_INDEX_ENTRIES * 18;
649 GST_DEBUG_OBJECT (mux, "preallocating %d bytes for the index",
652 _gst_buffer_new_and_alloc (preallocate_size, &tmp, &data);
654 /* prefill the space with a gstfiller: <spaces> script tag variable */
655 GST_WRITE_UINT16_BE (data, 9); /* 9 characters */
656 memcpy (data + 2, "gstfiller", 9);
657 GST_WRITE_UINT8 (data + 11, AMF0_STRING_MARKER); /* a string value */
658 GST_WRITE_UINT16_BE (data + 12, preallocate_size - 14);
659 memset (data + 14, ' ', preallocate_size - 14); /* the rest is spaces */
664 gst_flv_mux_create_number_script_value (const gchar * name, gdouble value)
668 gsize len = strlen (name);
670 _gst_buffer_new_and_alloc (2 + len + 1 + 8, &tmp, &data);
672 GST_WRITE_UINT16_BE (data, len);
673 data += 2; /* name length */
674 memcpy (data, name, len);
676 *data++ = AMF0_NUMBER_MARKER; /* double type */
677 GST_WRITE_DOUBLE_BE (data, value);
683 gst_flv_mux_create_metadata (GstFlvMux * mux, gboolean full)
685 const GstTagList *tags;
686 GstBuffer *script_tag, *tmp;
689 gint i, n_tags, tags_written = 0;
691 tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (mux));
693 GST_DEBUG_OBJECT (mux, "tags = %" GST_PTR_FORMAT, tags);
695 /* FIXME perhaps some bytewriter'ing here ... */
697 _gst_buffer_new_and_alloc (11, &script_tag, &data);
701 /* Data size, unknown for now */
707 data[4] = data[5] = data[6] = data[7] = 0;
710 data[8] = data[9] = data[10] = 0;
712 _gst_buffer_new_and_alloc (13, &tmp, &data);
713 data[0] = AMF0_STRING_MARKER; /* string */
715 data[2] = 10; /* length 10 */
716 memcpy (&data[3], "onMetaData", 10);
718 script_tag = gst_buffer_join (script_tag, tmp);
720 n_tags = (tags) ? gst_structure_n_fields ((GstStructure *) tags) : 0;
721 _gst_buffer_new_and_alloc (5, &tmp, &data);
722 data[0] = 8; /* ECMA array */
723 GST_WRITE_UINT32_BE (data + 1, n_tags);
724 script_tag = gst_buffer_join (script_tag, tmp);
729 /* Some players expect the 'duration' to be always set. Fill it out later,
730 after querying the pads or after getting EOS */
731 if (!mux->streamable) {
732 tmp = gst_flv_mux_create_number_script_value ("duration", 86400);
733 script_tag = gst_buffer_join (script_tag, tmp);
736 /* Sometimes the information about the total file size is useful for the
737 player. It will be filled later, after getting EOS */
738 tmp = gst_flv_mux_create_number_script_value ("filesize", 0);
739 script_tag = gst_buffer_join (script_tag, tmp);
742 /* Preallocate space for the index to be written at EOS */
743 tmp = gst_flv_mux_preallocate_index (mux);
744 script_tag = gst_buffer_join (script_tag, tmp);
746 GST_DEBUG_OBJECT (mux, "not preallocating index, streamable mode");
750 for (i = 0; tags && i < n_tags; i++) {
751 const gchar *tag_name =
752 gst_structure_nth_field_name ((const GstStructure *) tags, i);
753 if (!strcmp (tag_name, GST_TAG_DURATION)) {
756 if (!gst_tag_list_get_uint64 (tags, GST_TAG_DURATION, &dur))
759 } else if (!strcmp (tag_name, GST_TAG_ARTIST) ||
760 !strcmp (tag_name, GST_TAG_TITLE)) {
762 const gchar *t = NULL;
764 if (!strcmp (tag_name, GST_TAG_ARTIST))
766 else if (!strcmp (tag_name, GST_TAG_TITLE))
769 if (!gst_tag_list_get_string (tags, tag_name, &s))
772 _gst_buffer_new_and_alloc (2 + strlen (t) + 1 + 2 + strlen (s),
774 data[0] = 0; /* tag name length */
775 data[1] = strlen (t);
776 memcpy (&data[2], t, strlen (t));
777 data[2 + strlen (t)] = 2; /* string */
778 data[3 + strlen (t)] = (strlen (s) >> 8) & 0xff;
779 data[4 + strlen (t)] = (strlen (s)) & 0xff;
780 memcpy (&data[5 + strlen (t)], s, strlen (s));
781 script_tag = gst_buffer_join (script_tag, tmp);
791 if (mux->duration == GST_CLOCK_TIME_NONE) {
795 for (l = mux->collect->data; l; l = l->next) {
796 GstCollectData2 *cdata = l->data;
798 if (gst_pad_peer_query_duration (cdata->pad, GST_FORMAT_TIME,
799 (gint64 *) & dur) && dur != GST_CLOCK_TIME_NONE) {
800 if (mux->duration == GST_CLOCK_TIME_NONE)
803 mux->duration = MAX (dur, mux->duration);
808 if (!mux->streamable && mux->duration != GST_CLOCK_TIME_NONE) {
812 d = gst_guint64_to_gdouble (mux->duration);
813 d /= (gdouble) GST_SECOND;
815 GST_DEBUG_OBJECT (mux, "determined the duration to be %f", d);
816 gst_buffer_map (script_tag, &map, GST_MAP_WRITE);
817 GST_WRITE_DOUBLE_BE (map.data + 29 + 2 + 8 + 1, d);
818 gst_buffer_unmap (script_tag, &map);
821 if (mux->have_video) {
822 GstPad *video_pad = NULL;
824 GSList *l = mux->collect->data;
826 for (; l; l = l->next) {
828 if (cpad && cpad->video) {
829 video_pad = cpad->collect.pad;
834 if (video_pad && gst_pad_has_current_caps (video_pad)) {
840 GST_DEBUG_OBJECT (mux, "putting videocodecid %d in the metadata",
843 tmp = gst_flv_mux_create_number_script_value ("videocodecid",
845 script_tag = gst_buffer_join (script_tag, tmp);
848 caps = gst_pad_get_current_caps (video_pad);
849 s = gst_caps_get_structure (caps, 0);
850 gst_caps_unref (caps);
852 if (gst_structure_get_int (s, "width", &size)) {
853 GST_DEBUG_OBJECT (mux, "putting width %d in the metadata", size);
855 tmp = gst_flv_mux_create_number_script_value ("width", size);
856 script_tag = gst_buffer_join (script_tag, tmp);
860 if (gst_structure_get_int (s, "height", &size)) {
861 GST_DEBUG_OBJECT (mux, "putting height %d in the metadata", size);
863 tmp = gst_flv_mux_create_number_script_value ("height", size);
864 script_tag = gst_buffer_join (script_tag, tmp);
868 if (gst_structure_get_fraction (s, "pixel-aspect-ratio", &num, &den)) {
872 GST_DEBUG_OBJECT (mux, "putting AspectRatioX %f in the metadata", d);
874 tmp = gst_flv_mux_create_number_script_value ("AspectRatioX", d);
875 script_tag = gst_buffer_join (script_tag, tmp);
879 GST_DEBUG_OBJECT (mux, "putting AspectRatioY %f in the metadata", d);
881 tmp = gst_flv_mux_create_number_script_value ("AspectRatioY", d);
882 script_tag = gst_buffer_join (script_tag, tmp);
886 if (gst_structure_get_fraction (s, "framerate", &num, &den)) {
889 gst_util_fraction_to_double (num, den, &d);
890 GST_DEBUG_OBJECT (mux, "putting framerate %f in the metadata", d);
892 tmp = gst_flv_mux_create_number_script_value ("framerate", d);
893 script_tag = gst_buffer_join (script_tag, tmp);
899 if (mux->have_audio) {
900 GstPad *audio_pad = NULL;
902 GSList *l = mux->collect->data;
904 for (; l; l = l->next) {
906 if (cpad && !cpad->video) {
907 audio_pad = cpad->collect.pad;
913 GST_DEBUG_OBJECT (mux, "putting audiocodecid %d in the metadata",
916 tmp = gst_flv_mux_create_number_script_value ("audiocodecid",
918 script_tag = gst_buffer_join (script_tag, tmp);
924 const gchar *s = "GStreamer FLV muxer";
926 _gst_buffer_new_and_alloc (2 + 15 + 1 + 2 + strlen (s), &tmp, &data);
927 data[0] = 0; /* 15 bytes name */
929 memcpy (&data[2], "metadatacreator", 15);
930 data[17] = 2; /* string */
931 data[18] = (strlen (s) >> 8) & 0xff;
932 data[19] = (strlen (s)) & 0xff;
933 memcpy (&data[20], s, strlen (s));
934 script_tag = gst_buffer_join (script_tag, tmp);
940 GTimeVal tv = { 0, };
944 static const gchar *weekdays[] = {
945 "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
947 static const gchar *months[] = {
948 "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul",
949 "Aug", "Sep", "Oct", "Nov", "Dec"
952 g_get_current_time (&tv);
956 s = g_strdup_printf ("%s %s %d %d:%d:%d %d", weekdays[tm->tm_wday],
957 months[tm->tm_mon], tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec,
960 _gst_buffer_new_and_alloc (2 + 12 + 1 + 2 + strlen (s), &tmp, &data);
961 data[0] = 0; /* 12 bytes name */
963 memcpy (&data[2], "creationdate", 12);
964 data[14] = 2; /* string */
965 data[15] = (strlen (s) >> 8) & 0xff;
966 data[16] = (strlen (s)) & 0xff;
967 memcpy (&data[17], s, strlen (s));
968 script_tag = gst_buffer_join (script_tag, tmp);
977 gst_buffer_unref (script_tag);
982 _gst_buffer_new_and_alloc (2 + 0 + 1, &tmp, &data);
983 data[0] = 0; /* 0 byte size */
985 data[2] = 9; /* end marker */
986 script_tag = gst_buffer_join (script_tag, tmp);
989 _gst_buffer_new_and_alloc (4, &tmp, &data);
990 GST_WRITE_UINT32_BE (data, gst_buffer_get_size (script_tag));
991 script_tag = gst_buffer_join (script_tag, tmp);
993 gst_buffer_map (script_tag, &map, GST_MAP_WRITE);
994 map.data[1] = ((gst_buffer_get_size (script_tag) - 11 - 4) >> 16) & 0xff;
995 map.data[2] = ((gst_buffer_get_size (script_tag) - 11 - 4) >> 8) & 0xff;
996 map.data[3] = ((gst_buffer_get_size (script_tag) - 11 - 4) >> 0) & 0xff;
998 GST_WRITE_UINT32_BE (map.data + 11 + 13 + 1, tags_written);
999 gst_buffer_unmap (script_tag, &map);
1006 gst_flv_mux_buffer_to_tag_internal (GstFlvMux * mux, GstBuffer * buffer,
1007 GstFlvPad * cpad, gboolean is_codec_data)
1013 (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) ? GST_BUFFER_TIMESTAMP (buffer) /
1014 GST_MSECOND : cpad->last_timestamp / GST_MSECOND;
1015 guint8 *data, *bdata;
1018 gst_buffer_map (buffer, &map, GST_MAP_READ);
1025 if (cpad->video_codec == 7)
1031 if (cpad->audio_codec == 10)
1038 _gst_buffer_new_and_alloc (size, &tag, &data);
1039 GST_BUFFER_TIMESTAMP (tag) = timestamp * GST_MSECOND;
1040 memset (data, 0, size);
1042 data[0] = (cpad->video) ? 9 : 8;
1044 data[1] = ((size - 11 - 4) >> 16) & 0xff;
1045 data[2] = ((size - 11 - 4) >> 8) & 0xff;
1046 data[3] = ((size - 11 - 4) >> 0) & 0xff;
1048 /* wrap the timestamp every G_MAXINT32 miliseconds */
1049 timestamp &= 0x7fffffff;
1050 data[4] = (timestamp >> 16) & 0xff;
1051 data[5] = (timestamp >> 8) & 0xff;
1052 data[6] = (timestamp >> 0) & 0xff;
1053 data[7] = (timestamp >> 24) & 0xff;
1055 data[8] = data[9] = data[10] = 0;
1058 if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT))
1063 data[11] |= cpad->video_codec & 0x0f;
1065 if (cpad->video_codec == 7) {
1066 data[12] = is_codec_data ? 0 : 1;
1068 /* FIXME: what to do about composition time */
1069 data[13] = data[14] = data[15] = 0;
1071 memcpy (data + 11 + 1 + 4, bdata, bsize);
1073 memcpy (data + 11 + 1, bdata, bsize);
1076 data[11] |= (cpad->audio_codec << 4) & 0xf0;
1077 data[11] |= (cpad->rate << 2) & 0x0c;
1078 data[11] |= (cpad->width << 1) & 0x02;
1079 data[11] |= (cpad->channels << 0) & 0x01;
1081 if (cpad->audio_codec == 10) {
1082 data[12] = is_codec_data ? 0 : 1;
1084 memcpy (data + 11 + 1 + 1, bdata, bsize);
1086 memcpy (data + 11 + 1, bdata, bsize);
1090 gst_buffer_unmap (buffer, &map);
1092 GST_WRITE_UINT32_BE (data + size - 4, size - 4);
1094 GST_BUFFER_TIMESTAMP (tag) = GST_BUFFER_TIMESTAMP (buffer);
1095 GST_BUFFER_DURATION (tag) = GST_BUFFER_DURATION (buffer);
1096 GST_BUFFER_OFFSET (tag) = GST_BUFFER_OFFSET (buffer);
1097 GST_BUFFER_OFFSET_END (tag) = GST_BUFFER_OFFSET_END (buffer);
1099 /* mark the buffer if it's an audio buffer and there's also video being muxed
1100 * or it's a video interframe */
1101 if ((mux->have_video && !cpad->video) ||
1102 GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT))
1103 GST_BUFFER_FLAG_SET (tag, GST_BUFFER_FLAG_DELTA_UNIT);
1105 GST_BUFFER_OFFSET (tag) = GST_BUFFER_OFFSET_END (tag) =
1106 GST_BUFFER_OFFSET_NONE;
1111 static inline GstBuffer *
1112 gst_flv_mux_buffer_to_tag (GstFlvMux * mux, GstBuffer * buffer,
1115 return gst_flv_mux_buffer_to_tag_internal (mux, buffer, cpad, FALSE);
1118 static inline GstBuffer *
1119 gst_flv_mux_codec_data_buffer_to_tag (GstFlvMux * mux, GstBuffer * buffer,
1122 return gst_flv_mux_buffer_to_tag_internal (mux, buffer, cpad, TRUE);
1126 gst_flv_mux_put_buffer_in_streamheader (GValue * streamheader,
1129 GValue value = { 0 };
1132 g_value_init (&value, GST_TYPE_BUFFER);
1133 buf = gst_buffer_copy (buffer);
1134 gst_value_set_buffer (&value, buf);
1135 gst_buffer_unref (buf);
1136 gst_value_array_append_value (streamheader, &value);
1137 g_value_unset (&value);
1140 static GstFlowReturn
1141 gst_flv_mux_write_header (GstFlvMux * mux)
1143 GstBuffer *header, *metadata;
1144 GstBuffer *video_codec_data, *audio_codec_data;
1146 GstStructure *structure;
1147 GValue streamheader = { 0 };
1151 header = gst_flv_mux_create_header (mux);
1152 metadata = gst_flv_mux_create_metadata (mux, TRUE);
1153 video_codec_data = NULL;
1154 audio_codec_data = NULL;
1156 for (l = mux->collect->data; l != NULL; l = l->next) {
1157 GstFlvPad *cpad = l->data;
1159 /* Get H.264 and AAC codec data, if present */
1160 if (cpad && cpad->video && cpad->video_codec == 7) {
1161 if (cpad->video_codec_data == NULL)
1162 GST_WARNING_OBJECT (mux, "Codec data for video stream not found, "
1163 "output might not be playable");
1166 gst_flv_mux_codec_data_buffer_to_tag (mux, cpad->video_codec_data,
1168 } else if (cpad && !cpad->video && cpad->audio_codec == 10) {
1169 if (cpad->audio_codec_data == NULL)
1170 GST_WARNING_OBJECT (mux, "Codec data for audio stream not found, "
1171 "output might not be playable");
1174 gst_flv_mux_codec_data_buffer_to_tag (mux, cpad->audio_codec_data,
1179 /* mark buffers that will go in the streamheader */
1180 GST_BUFFER_FLAG_SET (header, GST_BUFFER_FLAG_IN_CAPS);
1181 GST_BUFFER_FLAG_SET (metadata, GST_BUFFER_FLAG_IN_CAPS);
1182 if (video_codec_data != NULL) {
1183 GST_BUFFER_FLAG_SET (video_codec_data, GST_BUFFER_FLAG_IN_CAPS);
1184 /* mark as a delta unit, so downstream will not try to synchronize on that
1185 * buffer - to actually start playback you need a real video keyframe */
1186 GST_BUFFER_FLAG_SET (video_codec_data, GST_BUFFER_FLAG_DELTA_UNIT);
1188 if (audio_codec_data != NULL) {
1189 GST_BUFFER_FLAG_SET (audio_codec_data, GST_BUFFER_FLAG_IN_CAPS);
1192 /* put buffers in streamheader */
1193 g_value_init (&streamheader, GST_TYPE_ARRAY);
1194 gst_flv_mux_put_buffer_in_streamheader (&streamheader, header);
1195 gst_flv_mux_put_buffer_in_streamheader (&streamheader, metadata);
1196 if (video_codec_data != NULL)
1197 gst_flv_mux_put_buffer_in_streamheader (&streamheader, video_codec_data);
1198 if (audio_codec_data != NULL)
1199 gst_flv_mux_put_buffer_in_streamheader (&streamheader, audio_codec_data);
1201 /* create the caps and put the streamheader in them */
1202 caps = gst_caps_new_empty_simple ("video/x-flv");
1203 structure = gst_caps_get_structure (caps, 0);
1204 gst_structure_set_value (structure, "streamheader", &streamheader);
1205 g_value_unset (&streamheader);
1207 if (!gst_pad_has_current_caps (mux->srcpad))
1208 gst_pad_set_caps (mux->srcpad, caps);
1210 gst_caps_unref (caps);
1212 /* push the header buffer, the metadata and the codec info, if any */
1213 ret = gst_flv_mux_push (mux, header);
1214 if (ret != GST_FLOW_OK)
1216 ret = gst_flv_mux_push (mux, metadata);
1217 if (ret != GST_FLOW_OK)
1219 if (video_codec_data != NULL) {
1220 ret = gst_flv_mux_push (mux, video_codec_data);
1221 if (ret != GST_FLOW_OK)
1224 if (audio_codec_data != NULL) {
1225 ret = gst_flv_mux_push (mux, audio_codec_data);
1226 if (ret != GST_FLOW_OK)
1233 gst_flv_mux_update_index (GstFlvMux * mux, GstBuffer * buffer, GstFlvPad * cpad)
1236 * Add the tag byte offset and to the index if it's a valid seek point, which
1237 * means it's either a video keyframe or if there is no video pad (in that
1238 * case every FLV tag is a valid seek point)
1240 if (mux->have_video &&
1242 GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT)))
1245 if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) {
1246 GstFlvMuxIndexEntry *entry = g_slice_new (GstFlvMuxIndexEntry);
1247 entry->position = mux->byte_count;
1249 gst_guint64_to_gdouble (GST_BUFFER_TIMESTAMP (buffer)) / GST_SECOND;
1250 mux->index = g_list_prepend (mux->index, entry);
1254 static GstFlowReturn
1255 gst_flv_mux_write_buffer (GstFlvMux * mux, GstFlvPad * cpad, GstBuffer * buffer)
1260 /* clipping function arranged for running_time */
1262 if (!mux->streamable)
1263 gst_flv_mux_update_index (mux, buffer, cpad);
1265 tag = gst_flv_mux_buffer_to_tag (mux, buffer, cpad);
1267 gst_buffer_unref (buffer);
1269 ret = gst_flv_mux_push (mux, tag);
1271 if (ret == GST_FLOW_OK && GST_BUFFER_TIMESTAMP_IS_VALID (tag))
1272 cpad->last_timestamp = GST_BUFFER_TIMESTAMP (tag);
1278 gst_flv_mux_determine_duration (GstFlvMux * mux)
1281 GstClockTime duration = GST_CLOCK_TIME_NONE;
1283 GST_DEBUG_OBJECT (mux, "trying to determine the duration "
1284 "from pad timestamps");
1286 for (l = mux->collect->data; l != NULL; l = l->next) {
1287 GstFlvPad *cpad = l->data;
1289 if (cpad && (cpad->last_timestamp != GST_CLOCK_TIME_NONE)) {
1290 if (duration == GST_CLOCK_TIME_NONE)
1291 duration = cpad->last_timestamp;
1293 duration = MAX (duration, cpad->last_timestamp);
1300 static GstFlowReturn
1301 gst_flv_mux_rewrite_header (GstFlvMux * mux)
1303 GstBuffer *rewrite, *index, *tmp;
1308 guint32 index_len, allocate_size;
1309 guint32 i, index_skip;
1313 if (mux->streamable)
1316 /* seek back to the preallocated index space */
1317 gst_segment_init (&segment, GST_FORMAT_BYTES);
1318 segment.start = segment.time = 13 + 29;
1319 event = gst_event_new_segment (&segment);
1320 if (!gst_pad_push_event (mux->srcpad, event)) {
1321 GST_WARNING_OBJECT (mux, "Seek to rewrite header failed");
1325 /* determine duration now based on our own timestamping,
1326 * so that it is likely many times better and consistent
1327 * than whatever obtained by some query */
1328 dur = gst_flv_mux_determine_duration (mux);
1329 if (dur != GST_CLOCK_TIME_NONE)
1330 mux->duration = dur;
1332 /* rewrite the duration tag */
1333 d = gst_guint64_to_gdouble (mux->duration);
1334 d /= (gdouble) GST_SECOND;
1336 GST_DEBUG_OBJECT (mux, "determined the final duration to be %f", d);
1338 rewrite = gst_flv_mux_create_number_script_value ("duration", d);
1340 /* rewrite the filesize tag */
1341 d = gst_guint64_to_gdouble (mux->byte_count);
1343 GST_DEBUG_OBJECT (mux, "putting total filesize %f in the metadata", d);
1345 tmp = gst_flv_mux_create_number_script_value ("filesize", d);
1346 rewrite = gst_buffer_join (rewrite, tmp);
1349 /* no index, so push buffer and return */
1350 return gst_flv_mux_push (mux, rewrite);
1353 /* rewrite the index */
1354 mux->index = g_list_reverse (mux->index);
1355 index_len = g_list_length (mux->index);
1357 /* We write at most MAX_INDEX_ENTRIES elements */
1358 if (index_len > MAX_INDEX_ENTRIES) {
1359 index_skip = 1 + index_len / MAX_INDEX_ENTRIES;
1360 index_len = (index_len + index_skip - 1) / index_skip;
1365 GST_DEBUG_OBJECT (mux, "Index length is %d", index_len);
1366 /* see size calculation in gst_flv_mux_preallocate_index */
1367 allocate_size = 11 + 8 + 22 + 10 + index_len * 18;
1368 GST_DEBUG_OBJECT (mux, "Allocating %d bytes for index", allocate_size);
1369 _gst_buffer_new_and_alloc (allocate_size, &index, &data);
1371 GST_WRITE_UINT16_BE (data, 9); /* the 'keyframes' key */
1372 memcpy (data + 2, "keyframes", 9);
1373 GST_WRITE_UINT8 (data + 11, 8); /* nested ECMA array */
1374 GST_WRITE_UINT32_BE (data + 12, 2); /* two elements */
1375 GST_WRITE_UINT16_BE (data + 16, 5); /* first string key: 'times' */
1376 memcpy (data + 18, "times", 5);
1377 GST_WRITE_UINT8 (data + 23, 10); /* strict array */
1378 GST_WRITE_UINT32_BE (data + 24, index_len);
1381 /* the keyframes' times */
1382 for (i = 0, l = mux->index; l; l = l->next, i++) {
1383 GstFlvMuxIndexEntry *entry = l->data;
1385 if (i % index_skip != 0)
1387 GST_WRITE_UINT8 (data, 0); /* numeric (aka double) */
1388 GST_WRITE_DOUBLE_BE (data + 1, entry->time);
1392 GST_WRITE_UINT16_BE (data, 13); /* second string key: 'filepositions' */
1393 memcpy (data + 2, "filepositions", 13);
1394 GST_WRITE_UINT8 (data + 15, 10); /* strict array */
1395 GST_WRITE_UINT32_BE (data + 16, index_len);
1398 /* the keyframes' file positions */
1399 for (i = 0, l = mux->index; l; l = l->next, i++) {
1400 GstFlvMuxIndexEntry *entry = l->data;
1402 if (i % index_skip != 0)
1404 GST_WRITE_UINT8 (data, 0);
1405 GST_WRITE_DOUBLE_BE (data + 1, entry->position);
1409 GST_WRITE_UINT24_BE (data, 9); /* finish the ECMA array */
1411 /* If there is space left in the prefilled area, reinsert the filler.
1412 There is at least 18 bytes free, so it will always fit. */
1413 if (index_len < MAX_INDEX_ENTRIES) {
1416 guint32 remaining_filler_size;
1418 _gst_buffer_new_and_alloc (14, &tmp, &data);
1419 GST_WRITE_UINT16_BE (data, 9);
1420 memcpy (data + 2, "gstfiller", 9);
1421 GST_WRITE_UINT8 (data + 11, 2); /* string */
1423 /* There is 18 bytes per remaining index entry minus what is used for
1424 * the'gstfiller' key. The rest is already filled with spaces, so just need
1425 * to update length. */
1426 remaining_filler_size = (MAX_INDEX_ENTRIES - index_len) * 18 - 14;
1427 GST_DEBUG_OBJECT (mux, "Remaining filler size is %d bytes",
1428 remaining_filler_size);
1429 GST_WRITE_UINT16_BE (data + 12, remaining_filler_size);
1430 index = gst_buffer_join (index, tmp);
1433 rewrite = gst_buffer_join (rewrite, index);
1435 return gst_flv_mux_push (mux, rewrite);
1438 static GstFlowReturn
1439 gst_flv_mux_handle_buffer (GstCollectPads2 * pads, GstCollectData2 * cdata,
1440 GstBuffer * buffer, gpointer user_data)
1442 GstFlvMux *mux = GST_FLV_MUX (user_data);
1444 GstClockTime best_time;
1447 if (mux->state == GST_FLV_MUX_STATE_HEADER) {
1450 if (mux->collect->data == NULL) {
1451 GST_ELEMENT_ERROR (mux, STREAM, MUX, (NULL),
1452 ("No input streams configured"));
1453 return GST_FLOW_ERROR;
1456 gst_segment_init (&segment, GST_FORMAT_BYTES);
1457 if (gst_pad_push_event (mux->srcpad, gst_event_new_segment (&segment)))
1458 ret = gst_flv_mux_write_header (mux);
1460 ret = GST_FLOW_ERROR;
1462 if (ret != GST_FLOW_OK)
1464 mux->state = GST_FLV_MUX_STATE_DATA;
1467 if (mux->new_tags) {
1468 GstBuffer *buf = gst_flv_mux_create_metadata (mux, FALSE);
1470 gst_flv_mux_push (mux, buf);
1471 mux->new_tags = FALSE;
1474 best = (GstFlvPad *) cdata;
1477 best_time = GST_BUFFER_TIMESTAMP (buffer);
1479 best_time = GST_CLOCK_TIME_NONE;
1482 /* The FLV timestamp is an int32 field. For non-live streams error out if a
1483 bigger timestamp is seen, for live the timestamp will get wrapped in
1484 gst_flv_mux_buffer_to_tag */
1485 if (!mux->streamable && GST_CLOCK_TIME_IS_VALID (best_time)
1486 && best_time / GST_MSECOND > G_MAXINT32) {
1487 GST_WARNING_OBJECT (mux, "Timestamp larger than FLV supports - EOS");
1488 gst_buffer_unref (buffer);
1494 return gst_flv_mux_write_buffer (mux, best, buffer);
1496 gst_flv_mux_rewrite_header (mux);
1497 gst_pad_push_event (mux->srcpad, gst_event_new_eos ());
1498 return GST_FLOW_EOS;
1503 gst_flv_mux_get_property (GObject * object,
1504 guint prop_id, GValue * value, GParamSpec * pspec)
1506 GstFlvMux *mux = GST_FLV_MUX (object);
1509 case PROP_STREAMABLE:
1510 g_value_set_boolean (value, mux->streamable);
1513 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1519 gst_flv_mux_set_property (GObject * object,
1520 guint prop_id, const GValue * value, GParamSpec * pspec)
1522 GstFlvMux *mux = GST_FLV_MUX (object);
1525 case PROP_STREAMABLE:
1526 mux->streamable = g_value_get_boolean (value);
1527 if (mux->streamable)
1528 gst_tag_setter_set_tag_merge_mode (GST_TAG_SETTER (mux),
1529 GST_TAG_MERGE_REPLACE);
1531 gst_tag_setter_set_tag_merge_mode (GST_TAG_SETTER (mux),
1532 GST_TAG_MERGE_KEEP);
1535 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1540 static GstStateChangeReturn
1541 gst_flv_mux_change_state (GstElement * element, GstStateChange transition)
1543 GstStateChangeReturn ret;
1544 GstFlvMux *mux = GST_FLV_MUX (element);
1546 switch (transition) {
1547 case GST_STATE_CHANGE_NULL_TO_READY:
1549 case GST_STATE_CHANGE_READY_TO_PAUSED:
1550 gst_collect_pads2_start (mux->collect);
1552 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
1554 case GST_STATE_CHANGE_PAUSED_TO_READY:
1555 gst_collect_pads2_stop (mux->collect);
1561 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
1563 switch (transition) {
1564 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
1566 case GST_STATE_CHANGE_PAUSED_TO_READY:
1567 gst_flv_mux_reset (GST_ELEMENT (mux));
1569 case GST_STATE_CHANGE_READY_TO_NULL: