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, framed = (boolean) TRUE; "
78 "audio/mpeg, mpegversion = (int) 4, stream-format = (string) raw, framed = (boolean) TRUE; "
79 "audio/x-nellymoser, channels = (int) { 1, 2 }, rate = (int) { 5512, 8000, 11025, 16000, 22050, 44100 }; "
80 "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; "
81 "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; "
82 "audio/x-alaw, channels = (int) { 1, 2 }, rate = (int) { 5512, 11025, 22050, 44100 }; "
83 "audio/x-mulaw, channels = (int) { 1, 2 }, rate = (int) { 5512, 11025, 22050, 44100 }; "
84 "audio/x-speex, channels = (int) { 1, 2 }, rate = (int) { 5512, 11025, 22050, 44100 };")
87 #define _do_init(type) \
89 static const GInterfaceInfo tag_setter_info = { \
94 g_type_add_interface_static (type, GST_TYPE_TAG_SETTER, \
98 GST_BOILERPLATE_FULL (GstFlvMux, gst_flv_mux, GstElement, GST_TYPE_ELEMENT,
101 static void gst_flv_mux_finalize (GObject * object);
103 gst_flv_mux_handle_buffer (GstCollectPads2 * pads, GstCollectData2 * cdata,
104 GstBuffer * buf, gpointer user_data);
106 gst_flv_mux_handle_sink_event (GstCollectPads2 * pads, GstCollectData2 * data,
107 GstEvent * event, gpointer user_data);
109 static gboolean gst_flv_mux_handle_src_event (GstPad * pad, GstEvent * event);
110 static GstPad *gst_flv_mux_request_new_pad (GstElement * element,
111 GstPadTemplate * templ, const gchar * name);
112 static void gst_flv_mux_release_pad (GstElement * element, GstPad * pad);
114 static void gst_flv_mux_get_property (GObject * object,
115 guint prop_id, GValue * value, GParamSpec * pspec);
116 static void gst_flv_mux_set_property (GObject * object,
117 guint prop_id, const GValue * value, GParamSpec * pspec);
119 static GstStateChangeReturn
120 gst_flv_mux_change_state (GstElement * element, GstStateChange transition);
122 static void gst_flv_mux_reset (GstElement * element);
123 static void gst_flv_mux_reset_pad (GstFlvMux * mux, GstFlvPad * pad,
130 } GstFlvMuxIndexEntry;
133 gst_flv_mux_index_entry_free (GstFlvMuxIndexEntry * entry)
135 g_slice_free (GstFlvMuxIndexEntry, entry);
139 gst_flv_mux_base_init (gpointer g_class)
141 GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
143 gst_element_class_add_static_pad_template (element_class,
145 gst_element_class_add_static_pad_template (element_class,
147 gst_element_class_add_static_pad_template (element_class, &src_templ);
148 gst_element_class_set_details_simple (element_class, "FLV muxer",
150 "Muxes video/audio streams into a FLV stream",
151 "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
153 GST_DEBUG_CATEGORY_INIT (flvmux_debug, "flvmux", 0, "FLV muxer");
157 gst_flv_mux_class_init (GstFlvMuxClass * klass)
159 GObjectClass *gobject_class;
160 GstElementClass *gstelement_class;
162 GST_DEBUG_CATEGORY_INIT (flvmux_debug, "flvmux", 0, "FLV muxer");
164 gobject_class = (GObjectClass *) klass;
165 gstelement_class = (GstElementClass *) klass;
167 gobject_class->get_property = gst_flv_mux_get_property;
168 gobject_class->set_property = gst_flv_mux_set_property;
169 gobject_class->finalize = gst_flv_mux_finalize;
171 /* FIXME: ideally the right mode of operation should be detected
172 * automatically using queries when parameter not specified. */
174 * GstFlvMux:streamable
176 * If True, the output will be streaming friendly. (ie without indexes and
181 g_object_class_install_property (gobject_class, PROP_STREAMABLE,
182 g_param_spec_boolean ("streamable", "streamable",
183 "If set to true, the output should be as if it is to be streamed "
184 "and hence no indexes written or duration written.",
185 DEFAULT_STREAMABLE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
187 gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_flv_mux_change_state);
188 gstelement_class->request_new_pad =
189 GST_DEBUG_FUNCPTR (gst_flv_mux_request_new_pad);
190 gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_flv_mux_release_pad);
194 gst_flv_mux_init (GstFlvMux * mux, GstFlvMuxClass * g_class)
196 mux->srcpad = gst_pad_new_from_static_template (&src_templ, "src");
197 gst_pad_set_event_function (mux->srcpad, gst_flv_mux_handle_src_event);
198 gst_element_add_pad (GST_ELEMENT (mux), mux->srcpad);
201 mux->streamable = DEFAULT_STREAMABLE;
203 mux->new_tags = FALSE;
205 mux->collect = gst_collect_pads2_new ();
206 gst_collect_pads2_set_buffer_function (mux->collect,
207 GST_DEBUG_FUNCPTR (gst_flv_mux_handle_buffer), mux);
208 gst_collect_pads2_set_event_function (mux->collect,
209 GST_DEBUG_FUNCPTR (gst_flv_mux_handle_sink_event), mux);
210 gst_collect_pads2_set_clip_function (mux->collect,
211 GST_DEBUG_FUNCPTR (gst_collect_pads2_clip_running_time), mux);
213 gst_flv_mux_reset (GST_ELEMENT (mux));
217 gst_flv_mux_finalize (GObject * object)
219 GstFlvMux *mux = GST_FLV_MUX (object);
221 gst_object_unref (mux->collect);
223 G_OBJECT_CLASS (parent_class)->finalize (object);
227 gst_flv_mux_reset (GstElement * element)
229 GstFlvMux *mux = GST_FLV_MUX (element);
232 for (sl = mux->collect->data; sl != NULL; sl = g_slist_next (sl)) {
233 GstFlvPad *cpad = (GstFlvPad *) sl->data;
235 gst_flv_mux_reset_pad (mux, cpad, cpad->video);
238 g_list_foreach (mux->index, (GFunc) gst_flv_mux_index_entry_free, NULL);
239 g_list_free (mux->index);
243 mux->have_audio = mux->have_video = FALSE;
244 mux->duration = GST_CLOCK_TIME_NONE;
245 mux->new_tags = FALSE;
247 mux->state = GST_FLV_MUX_STATE_HEADER;
250 gst_tag_setter_reset_tags (GST_TAG_SETTER (mux));
254 gst_flv_mux_handle_src_event (GstPad * pad, GstEvent * event)
258 type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN;
262 /* disable seeking for now */
268 return gst_pad_event_default (pad, event);
272 gst_flv_mux_handle_sink_event (GstCollectPads2 * pads, GstCollectData2 * data,
273 GstEvent * event, gpointer user_data)
275 GstFlvMux *mux = GST_FLV_MUX (user_data);
277 switch (GST_EVENT_TYPE (event)) {
280 GstTagSetter *setter = GST_TAG_SETTER (mux);
281 const GstTagMergeMode mode = gst_tag_setter_get_tag_merge_mode (setter);
283 gst_event_parse_tag (event, &list);
284 gst_tag_setter_merge_tags (setter, list, mode);
285 mux->new_tags = TRUE;
292 /* now GstCollectPads2 can take care of the rest, e.g. EOS */
297 gst_flv_mux_video_pad_setcaps (GstPad * pad, GstCaps * caps)
299 GstFlvMux *mux = GST_FLV_MUX (gst_pad_get_parent (pad));
300 GstFlvPad *cpad = (GstFlvPad *) gst_pad_get_element_private (pad);
304 s = gst_caps_get_structure (caps, 0);
306 if (strcmp (gst_structure_get_name (s), "video/x-flash-video") == 0) {
307 cpad->video_codec = 2;
308 } else if (strcmp (gst_structure_get_name (s), "video/x-flash-screen") == 0) {
309 cpad->video_codec = 3;
310 } else if (strcmp (gst_structure_get_name (s), "video/x-vp6-flash") == 0) {
311 cpad->video_codec = 4;
312 } else if (strcmp (gst_structure_get_name (s), "video/x-vp6-alpha") == 0) {
313 cpad->video_codec = 5;
314 } else if (strcmp (gst_structure_get_name (s), "video/x-h264") == 0) {
315 cpad->video_codec = 7;
320 if (ret && gst_structure_has_field (s, "codec_data")) {
321 const GValue *val = gst_structure_get_value (s, "codec_data");
324 cpad->video_codec_data = gst_buffer_ref (gst_value_get_buffer (val));
327 gst_object_unref (mux);
333 gst_flv_mux_audio_pad_setcaps (GstPad * pad, GstCaps * caps)
335 GstFlvMux *mux = GST_FLV_MUX (gst_pad_get_parent (pad));
336 GstFlvPad *cpad = (GstFlvPad *) gst_pad_get_element_private (pad);
340 s = gst_caps_get_structure (caps, 0);
342 if (strcmp (gst_structure_get_name (s), "audio/x-adpcm") == 0) {
343 const gchar *layout = gst_structure_get_string (s, "layout");
344 if (layout && strcmp (layout, "swf") == 0) {
345 cpad->audio_codec = 1;
349 } else if (strcmp (gst_structure_get_name (s), "audio/mpeg") == 0) {
352 if (gst_structure_get_int (s, "mpegversion", &mpegversion)) {
353 if (mpegversion == 1) {
356 if (gst_structure_get_int (s, "layer", &layer) && layer == 3) {
359 if (gst_structure_get_int (s, "rate", &rate) && rate == 8000)
360 cpad->audio_codec = 14;
362 cpad->audio_codec = 2;
366 } else if (mpegversion == 4 || mpegversion == 2) {
367 cpad->audio_codec = 10;
374 } else if (strcmp (gst_structure_get_name (s), "audio/x-nellymoser") == 0) {
377 if (gst_structure_get_int (s, "rate", &rate)
378 && gst_structure_get_int (s, "channels", &channels)) {
379 if (channels == 1 && rate == 16000)
380 cpad->audio_codec = 4;
381 else if (channels == 1 && rate == 8000)
382 cpad->audio_codec = 5;
384 cpad->audio_codec = 6;
386 cpad->audio_codec = 6;
388 } else if (strcmp (gst_structure_get_name (s), "audio/x-raw-int") == 0) {
391 if (gst_structure_get_int (s, "endianness", &endianness)
392 && endianness == G_LITTLE_ENDIAN)
393 cpad->audio_codec = 3;
396 } else if (strcmp (gst_structure_get_name (s), "audio/x-alaw") == 0) {
397 cpad->audio_codec = 7;
398 } else if (strcmp (gst_structure_get_name (s), "audio/x-mulaw") == 0) {
399 cpad->audio_codec = 8;
400 } else if (strcmp (gst_structure_get_name (s), "audio/x-speex") == 0) {
401 cpad->audio_codec = 11;
407 gint rate, channels, width;
409 if (gst_structure_get_int (s, "rate", &rate)) {
410 if (cpad->audio_codec == 10)
412 else if (rate == 5512)
414 else if (rate == 11025)
416 else if (rate == 22050)
418 else if (rate == 44100)
420 else if (rate == 8000 && (cpad->audio_codec == 5
421 || cpad->audio_codec == 14))
423 else if (rate == 16000 && cpad->audio_codec == 4)
427 } else if (cpad->audio_codec == 10) {
433 if (gst_structure_get_int (s, "channels", &channels)) {
434 if (cpad->audio_codec == 4 || cpad->audio_codec == 5
435 || cpad->audio_codec == 6)
437 else if (cpad->audio_codec == 10)
439 else if (channels == 1)
441 else if (channels == 2)
445 } else if (cpad->audio_codec == 4 || cpad->audio_codec == 5
446 || cpad->audio_codec == 6) {
448 } else if (cpad->audio_codec == 10) {
454 if (gst_structure_get_int (s, "width", &width)) {
455 if (cpad->audio_codec != 3)
459 else if (width == 16)
463 } else if (cpad->audio_codec != 3) {
470 if (ret && gst_structure_has_field (s, "codec_data")) {
471 const GValue *val = gst_structure_get_value (s, "codec_data");
474 cpad->audio_codec_data = gst_buffer_ref (gst_value_get_buffer (val));
477 gst_object_unref (mux);
483 gst_flv_mux_reset_pad (GstFlvMux * mux, GstFlvPad * cpad, gboolean video)
487 if (cpad->audio_codec_data)
488 gst_buffer_unref (cpad->audio_codec_data);
489 cpad->audio_codec_data = NULL;
490 cpad->audio_codec = G_MAXUINT;
491 cpad->rate = G_MAXUINT;
492 cpad->width = G_MAXUINT;
493 cpad->channels = G_MAXUINT;
495 if (cpad->video_codec_data)
496 gst_buffer_unref (cpad->video_codec_data);
497 cpad->video_codec_data = NULL;
498 cpad->video_codec = G_MAXUINT;
499 cpad->last_timestamp = 0;
503 gst_flv_mux_request_new_pad (GstElement * element,
504 GstPadTemplate * templ, const gchar * pad_name)
506 GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
507 GstFlvMux *mux = GST_FLV_MUX (element);
510 const gchar *name = NULL;
511 GstPadSetCapsFunction setcapsfunc = NULL;
514 if (mux->state != GST_FLV_MUX_STATE_HEADER) {
515 GST_WARNING_OBJECT (mux, "Can't request pads after writing header");
519 if (templ == gst_element_class_get_pad_template (klass, "audio")) {
520 if (mux->have_audio) {
521 GST_WARNING_OBJECT (mux, "Already have an audio pad");
524 mux->have_audio = TRUE;
527 setcapsfunc = GST_DEBUG_FUNCPTR (gst_flv_mux_audio_pad_setcaps);
528 } else if (templ == gst_element_class_get_pad_template (klass, "video")) {
529 if (mux->have_video) {
530 GST_WARNING_OBJECT (mux, "Already have a video pad");
533 mux->have_video = TRUE;
536 setcapsfunc = GST_DEBUG_FUNCPTR (gst_flv_mux_video_pad_setcaps);
538 GST_WARNING_OBJECT (mux, "Invalid template");
542 pad = gst_pad_new_from_template (templ, name);
544 gst_collect_pads2_add_pad (mux->collect, pad, sizeof (GstFlvPad));
546 cpad->audio_codec_data = NULL;
547 cpad->video_codec_data = NULL;
548 gst_flv_mux_reset_pad (mux, cpad, video);
550 gst_pad_set_setcaps_function (pad, setcapsfunc);
551 gst_pad_set_active (pad, TRUE);
552 gst_element_add_pad (element, pad);
558 gst_flv_mux_release_pad (GstElement * element, GstPad * pad)
560 GstFlvMux *mux = GST_FLV_MUX (GST_PAD_PARENT (pad));
561 GstFlvPad *cpad = (GstFlvPad *) gst_pad_get_element_private (pad);
563 gst_flv_mux_reset_pad (mux, cpad, cpad->video);
564 gst_collect_pads2_remove_pad (mux->collect, pad);
565 gst_element_remove_pad (element, pad);
569 gst_flv_mux_push (GstFlvMux * mux, GstBuffer * buffer)
571 buffer = gst_buffer_make_metadata_writable (buffer);
572 gst_buffer_set_caps (buffer, GST_PAD_CAPS (mux->srcpad));
573 /* pushing the buffer that rewrites the header will make it no longer be the
574 * total output size in bytes, but it doesn't matter at that point */
575 mux->byte_count += GST_BUFFER_SIZE (buffer);
577 return gst_pad_push (mux->srcpad, buffer);
581 gst_flv_mux_create_header (GstFlvMux * mux)
586 header = gst_buffer_new_and_alloc (9 + 4);
587 data = GST_BUFFER_DATA (header);
592 data[3] = 0x01; /* Version */
594 data[4] = (mux->have_audio << 2) | mux->have_video; /* flags */
595 GST_WRITE_UINT32_BE (data + 5, 9); /* data offset */
596 GST_WRITE_UINT32_BE (data + 9, 0); /* previous tag size */
602 gst_flv_mux_preallocate_index (GstFlvMux * mux)
606 gint preallocate_size;
608 /* preallocate index of size:
609 * - 'keyframes' ECMA array key: 2 + 9 = 11 bytes
610 * - nested ECMA array header, length and end marker: 8 bytes
611 * - 'times' and 'filepositions' keys: 22 bytes
612 * - two strict arrays headers and lengths: 10 bytes
613 * - each index entry: 18 bytes
615 preallocate_size = 11 + 8 + 22 + 10 + MAX_INDEX_ENTRIES * 18;
616 GST_DEBUG_OBJECT (mux, "preallocating %d bytes for the index",
619 tmp = gst_buffer_new_and_alloc (preallocate_size);
620 data = GST_BUFFER_DATA (tmp);
622 /* prefill the space with a gstfiller: <spaces> script tag variable */
623 GST_WRITE_UINT16_BE (data, 9); /* 9 characters */
624 memcpy (data + 2, "gstfiller", 9);
625 GST_WRITE_UINT8 (data + 11, AMF0_STRING_MARKER); /* a string value */
626 GST_WRITE_UINT16_BE (data + 12, preallocate_size - 14);
627 memset (data + 14, ' ', preallocate_size - 14); /* the rest is spaces */
632 gst_flv_mux_create_number_script_value (const gchar * name, gdouble value)
634 GstBuffer *tmp = gst_buffer_new_and_alloc (2 + strlen (name) + 1 + 8);
635 guint8 *data = GST_BUFFER_DATA (tmp);
636 gsize len = strlen (name);
638 GST_WRITE_UINT16_BE (data, len);
639 data += 2; /* name length */
640 memcpy (data, name, len);
642 *data++ = AMF0_NUMBER_MARKER; /* double type */
643 GST_WRITE_DOUBLE_BE (data, value);
649 gst_flv_mux_create_metadata (GstFlvMux * mux, gboolean full)
651 const GstTagList *tags;
652 GstBuffer *script_tag, *tmp;
654 gint i, n_tags, tags_written = 0;
656 tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (mux));
658 GST_DEBUG_OBJECT (mux, "tags = %" GST_PTR_FORMAT, tags);
660 script_tag = gst_buffer_new_and_alloc (11);
661 data = GST_BUFFER_DATA (script_tag);
665 /* Data size, unknown for now */
671 data[4] = data[5] = data[6] = data[7] = 0;
674 data[8] = data[9] = data[10] = 0;
676 tmp = gst_buffer_new_and_alloc (13);
677 data = GST_BUFFER_DATA (tmp);
678 data[0] = AMF0_STRING_MARKER; /* string */
680 data[2] = 10; /* length 10 */
681 memcpy (&data[3], "onMetaData", 10);
683 script_tag = gst_buffer_join (script_tag, tmp);
685 n_tags = (tags) ? gst_structure_n_fields ((GstStructure *) tags) : 0;
686 tmp = gst_buffer_new_and_alloc (5);
687 data = GST_BUFFER_DATA (tmp);
688 data[0] = 8; /* ECMA array */
689 GST_WRITE_UINT32_BE (data + 1, n_tags);
690 script_tag = gst_buffer_join (script_tag, tmp);
695 /* Some players expect the 'duration' to be always set. Fill it out later,
696 after querying the pads or after getting EOS */
697 if (!mux->streamable) {
698 tmp = gst_flv_mux_create_number_script_value ("duration", 86400);
699 script_tag = gst_buffer_join (script_tag, tmp);
702 /* Sometimes the information about the total file size is useful for the
703 player. It will be filled later, after getting EOS */
704 tmp = gst_flv_mux_create_number_script_value ("filesize", 0);
705 script_tag = gst_buffer_join (script_tag, tmp);
708 /* Preallocate space for the index to be written at EOS */
709 tmp = gst_flv_mux_preallocate_index (mux);
710 script_tag = gst_buffer_join (script_tag, tmp);
712 GST_DEBUG_OBJECT (mux, "not preallocating index, streamable mode");
716 for (i = 0; tags && i < n_tags; i++) {
717 const gchar *tag_name =
718 gst_structure_nth_field_name ((const GstStructure *) tags, i);
719 if (!strcmp (tag_name, GST_TAG_DURATION)) {
722 if (!gst_tag_list_get_uint64 (tags, GST_TAG_DURATION, &dur))
725 } else if (!strcmp (tag_name, GST_TAG_ARTIST) ||
726 !strcmp (tag_name, GST_TAG_TITLE)) {
728 const gchar *t = NULL;
730 if (!strcmp (tag_name, GST_TAG_ARTIST))
732 else if (!strcmp (tag_name, GST_TAG_TITLE))
735 if (!gst_tag_list_get_string (tags, tag_name, &s))
738 tmp = gst_buffer_new_and_alloc (2 + strlen (t) + 1 + 2 + strlen (s));
739 data = GST_BUFFER_DATA (tmp);
740 data[0] = 0; /* tag name length */
741 data[1] = strlen (t);
742 memcpy (&data[2], t, strlen (t));
743 data[2 + strlen (t)] = 2; /* string */
744 data[3 + strlen (t)] = (strlen (s) >> 8) & 0xff;
745 data[4 + strlen (t)] = (strlen (s)) & 0xff;
746 memcpy (&data[5 + strlen (t)], s, strlen (s));
747 script_tag = gst_buffer_join (script_tag, tmp);
757 if (mux->duration == GST_CLOCK_TIME_NONE) {
760 GstFormat fmt = GST_FORMAT_TIME;
763 for (l = mux->collect->data; l; l = l->next) {
764 GstCollectData2 *cdata = l->data;
766 fmt = GST_FORMAT_TIME;
768 if (gst_pad_query_peer_duration (cdata->pad, &fmt, (gint64 *) & dur) &&
769 fmt == GST_FORMAT_TIME && dur != GST_CLOCK_TIME_NONE) {
770 if (mux->duration == GST_CLOCK_TIME_NONE)
773 mux->duration = MAX (dur, mux->duration);
778 if (!mux->streamable && mux->duration != GST_CLOCK_TIME_NONE) {
780 d = gst_guint64_to_gdouble (mux->duration);
781 d /= (gdouble) GST_SECOND;
783 GST_DEBUG_OBJECT (mux, "determined the duration to be %f", d);
784 data = GST_BUFFER_DATA (script_tag);
785 GST_WRITE_DOUBLE_BE (data + 29 + 2 + 8 + 1, d);
788 if (mux->have_video) {
789 GstPad *video_pad = NULL;
791 GSList *l = mux->collect->data;
793 for (; l; l = l->next) {
795 if (cpad && cpad->video) {
796 video_pad = cpad->collect.pad;
801 if (video_pad && GST_PAD_CAPS (video_pad)) {
802 GstStructure *s = gst_caps_get_structure (GST_PAD_CAPS (video_pad), 0);
806 GST_DEBUG_OBJECT (mux, "putting videocodecid %d in the metadata",
809 tmp = gst_flv_mux_create_number_script_value ("videocodecid",
811 script_tag = gst_buffer_join (script_tag, tmp);
814 if (gst_structure_get_int (s, "width", &size)) {
815 GST_DEBUG_OBJECT (mux, "putting width %d in the metadata", size);
817 tmp = gst_flv_mux_create_number_script_value ("width", size);
818 script_tag = gst_buffer_join (script_tag, tmp);
822 if (gst_structure_get_int (s, "height", &size)) {
823 GST_DEBUG_OBJECT (mux, "putting height %d in the metadata", size);
825 tmp = gst_flv_mux_create_number_script_value ("height", size);
826 script_tag = gst_buffer_join (script_tag, tmp);
830 if (gst_structure_get_fraction (s, "pixel-aspect-ratio", &num, &den)) {
834 GST_DEBUG_OBJECT (mux, "putting AspectRatioX %f in the metadata", d);
836 tmp = gst_flv_mux_create_number_script_value ("AspectRatioX", d);
837 script_tag = gst_buffer_join (script_tag, tmp);
841 GST_DEBUG_OBJECT (mux, "putting AspectRatioY %f in the metadata", d);
843 tmp = gst_flv_mux_create_number_script_value ("AspectRatioY", d);
844 script_tag = gst_buffer_join (script_tag, tmp);
848 if (gst_structure_get_fraction (s, "framerate", &num, &den)) {
851 gst_util_fraction_to_double (num, den, &d);
852 GST_DEBUG_OBJECT (mux, "putting framerate %f in the metadata", d);
854 tmp = gst_flv_mux_create_number_script_value ("framerate", d);
855 script_tag = gst_buffer_join (script_tag, tmp);
861 if (mux->have_audio) {
862 GstPad *audio_pad = NULL;
864 GSList *l = mux->collect->data;
866 for (; l; l = l->next) {
868 if (cpad && !cpad->video) {
869 audio_pad = cpad->collect.pad;
875 GST_DEBUG_OBJECT (mux, "putting audiocodecid %d in the metadata",
878 tmp = gst_flv_mux_create_number_script_value ("audiocodecid",
880 script_tag = gst_buffer_join (script_tag, tmp);
886 const gchar *s = "GStreamer FLV muxer";
888 tmp = gst_buffer_new_and_alloc (2 + 15 + 1 + 2 + strlen (s));
889 data = GST_BUFFER_DATA (tmp);
890 data[0] = 0; /* 15 bytes name */
892 memcpy (&data[2], "metadatacreator", 15);
893 data[17] = 2; /* string */
894 data[18] = (strlen (s) >> 8) & 0xff;
895 data[19] = (strlen (s)) & 0xff;
896 memcpy (&data[20], s, strlen (s));
897 script_tag = gst_buffer_join (script_tag, tmp);
903 GTimeVal tv = { 0, };
907 static const gchar *weekdays[] = {
908 "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
910 static const gchar *months[] = {
911 "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul",
912 "Aug", "Sep", "Oct", "Nov", "Dec"
915 g_get_current_time (&tv);
919 s = g_strdup_printf ("%s %s %d %d:%d:%d %d", weekdays[tm->tm_wday],
920 months[tm->tm_mon], tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec,
923 tmp = gst_buffer_new_and_alloc (2 + 12 + 1 + 2 + strlen (s));
924 data = GST_BUFFER_DATA (tmp);
925 data[0] = 0; /* 12 bytes name */
927 memcpy (&data[2], "creationdate", 12);
928 data[14] = 2; /* string */
929 data[15] = (strlen (s) >> 8) & 0xff;
930 data[16] = (strlen (s)) & 0xff;
931 memcpy (&data[17], s, strlen (s));
932 script_tag = gst_buffer_join (script_tag, tmp);
941 gst_buffer_unref (script_tag);
946 tmp = gst_buffer_new_and_alloc (2 + 0 + 1);
947 data = GST_BUFFER_DATA (tmp);
948 data[0] = 0; /* 0 byte size */
950 data[2] = 9; /* end marker */
951 script_tag = gst_buffer_join (script_tag, tmp);
954 tmp = gst_buffer_new_and_alloc (4);
955 data = GST_BUFFER_DATA (tmp);
956 GST_WRITE_UINT32_BE (data, GST_BUFFER_SIZE (script_tag));
957 script_tag = gst_buffer_join (script_tag, tmp);
959 data = GST_BUFFER_DATA (script_tag);
960 data[1] = ((GST_BUFFER_SIZE (script_tag) - 11 - 4) >> 16) & 0xff;
961 data[2] = ((GST_BUFFER_SIZE (script_tag) - 11 - 4) >> 8) & 0xff;
962 data[3] = ((GST_BUFFER_SIZE (script_tag) - 11 - 4) >> 0) & 0xff;
964 GST_WRITE_UINT32_BE (data + 11 + 13 + 1, tags_written);
971 gst_flv_mux_buffer_to_tag_internal (GstFlvMux * mux, GstBuffer * buffer,
972 GstFlvPad * cpad, gboolean is_codec_data)
978 (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) ? GST_BUFFER_TIMESTAMP (buffer) /
979 GST_MSECOND : cpad->last_timestamp / GST_MSECOND;
984 if (cpad->video_codec == 7)
985 size += 4 + GST_BUFFER_SIZE (buffer);
987 size += GST_BUFFER_SIZE (buffer);
990 if (cpad->audio_codec == 10)
991 size += 1 + GST_BUFFER_SIZE (buffer);
993 size += GST_BUFFER_SIZE (buffer);
997 tag = gst_buffer_new_and_alloc (size);
998 GST_BUFFER_TIMESTAMP (tag) = timestamp * GST_MSECOND;
999 data = GST_BUFFER_DATA (tag);
1000 memset (data, 0, size);
1002 data[0] = (cpad->video) ? 9 : 8;
1004 data[1] = ((size - 11 - 4) >> 16) & 0xff;
1005 data[2] = ((size - 11 - 4) >> 8) & 0xff;
1006 data[3] = ((size - 11 - 4) >> 0) & 0xff;
1008 /* wrap the timestamp every G_MAXINT32 miliseconds */
1009 timestamp &= 0x7fffffff;
1010 data[4] = (timestamp >> 16) & 0xff;
1011 data[5] = (timestamp >> 8) & 0xff;
1012 data[6] = (timestamp >> 0) & 0xff;
1013 data[7] = (timestamp >> 24) & 0xff;
1015 data[8] = data[9] = data[10] = 0;
1018 if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT))
1023 data[11] |= cpad->video_codec & 0x0f;
1025 if (cpad->video_codec == 7) {
1026 data[12] = is_codec_data ? 0 : 1;
1028 /* FIXME: what to do about composition time */
1029 data[13] = data[14] = data[15] = 0;
1031 memcpy (data + 11 + 1 + 4, GST_BUFFER_DATA (buffer),
1032 GST_BUFFER_SIZE (buffer));
1034 memcpy (data + 11 + 1, GST_BUFFER_DATA (buffer),
1035 GST_BUFFER_SIZE (buffer));
1038 data[11] |= (cpad->audio_codec << 4) & 0xf0;
1039 data[11] |= (cpad->rate << 2) & 0x0c;
1040 data[11] |= (cpad->width << 1) & 0x02;
1041 data[11] |= (cpad->channels << 0) & 0x01;
1043 if (cpad->audio_codec == 10) {
1044 data[12] = is_codec_data ? 0 : 1;
1046 memcpy (data + 11 + 1 + 1, GST_BUFFER_DATA (buffer),
1047 GST_BUFFER_SIZE (buffer));
1049 memcpy (data + 11 + 1, GST_BUFFER_DATA (buffer),
1050 GST_BUFFER_SIZE (buffer));
1054 GST_WRITE_UINT32_BE (data + size - 4, size - 4);
1056 gst_buffer_copy_metadata (tag, buffer, GST_BUFFER_COPY_TIMESTAMPS);
1057 /* mark the buffer if it's an audio buffer and there's also video being muxed
1058 * or it's a video interframe */
1059 if ((mux->have_video && !cpad->video) ||
1060 GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT))
1061 GST_BUFFER_FLAG_SET (tag, GST_BUFFER_FLAG_DELTA_UNIT);
1063 GST_BUFFER_OFFSET (tag) = GST_BUFFER_OFFSET_END (tag) =
1064 GST_BUFFER_OFFSET_NONE;
1069 static inline GstBuffer *
1070 gst_flv_mux_buffer_to_tag (GstFlvMux * mux, GstBuffer * buffer,
1073 return gst_flv_mux_buffer_to_tag_internal (mux, buffer, cpad, FALSE);
1076 static inline GstBuffer *
1077 gst_flv_mux_codec_data_buffer_to_tag (GstFlvMux * mux, GstBuffer * buffer,
1080 return gst_flv_mux_buffer_to_tag_internal (mux, buffer, cpad, TRUE);
1084 gst_flv_mux_put_buffer_in_streamheader (GValue * streamheader,
1087 GValue value = { 0 };
1090 g_value_init (&value, GST_TYPE_BUFFER);
1091 buf = gst_buffer_copy (buffer);
1092 gst_value_set_buffer (&value, buf);
1093 gst_buffer_unref (buf);
1094 gst_value_array_append_value (streamheader, &value);
1095 g_value_unset (&value);
1098 static GstFlowReturn
1099 gst_flv_mux_write_header (GstFlvMux * mux)
1101 GstBuffer *header, *metadata;
1102 GstBuffer *video_codec_data, *audio_codec_data;
1104 GstStructure *structure;
1105 GValue streamheader = { 0 };
1109 /* if not streaming, check if downstream is seekable */
1110 if (!mux->streamable) {
1114 query = gst_query_new_seeking (GST_FORMAT_BYTES);
1115 if (gst_pad_peer_query (mux->srcpad, query)) {
1116 gst_query_parse_seeking (query, NULL, &seekable, NULL, NULL);
1117 GST_INFO_OBJECT (mux, "downstream is %sseekable", seekable ? "" : "not ");
1119 mux->streamable = TRUE;
1120 g_object_notify (G_OBJECT (mux), "streamable");
1121 GST_WARNING_OBJECT (mux, "downstream is not seekable, but "
1122 "streamable=false. Will ignore that and create streamable output "
1126 /* have to assume seeking is supported if query not handled downstream */
1127 /* FIXME 0.11: change to query not handled => seeking not supported */
1128 GST_WARNING_OBJECT (mux, "downstream did not handle seeking query");
1132 header = gst_flv_mux_create_header (mux);
1133 metadata = gst_flv_mux_create_metadata (mux, TRUE);
1134 video_codec_data = NULL;
1135 audio_codec_data = NULL;
1137 for (l = mux->collect->data; l != NULL; l = l->next) {
1138 GstFlvPad *cpad = l->data;
1140 /* Get H.264 and AAC codec data, if present */
1141 if (cpad && cpad->video && cpad->video_codec == 7) {
1142 if (cpad->video_codec_data == NULL)
1143 GST_WARNING_OBJECT (mux, "Codec data for video stream not found, "
1144 "output might not be playable");
1147 gst_flv_mux_codec_data_buffer_to_tag (mux, cpad->video_codec_data,
1149 } else if (cpad && !cpad->video && cpad->audio_codec == 10) {
1150 if (cpad->audio_codec_data == NULL)
1151 GST_WARNING_OBJECT (mux, "Codec data for audio stream not found, "
1152 "output might not be playable");
1155 gst_flv_mux_codec_data_buffer_to_tag (mux, cpad->audio_codec_data,
1160 /* mark buffers that will go in the streamheader */
1161 GST_BUFFER_FLAG_SET (header, GST_BUFFER_FLAG_IN_CAPS);
1162 GST_BUFFER_FLAG_SET (metadata, GST_BUFFER_FLAG_IN_CAPS);
1163 if (video_codec_data != NULL) {
1164 GST_BUFFER_FLAG_SET (video_codec_data, GST_BUFFER_FLAG_IN_CAPS);
1165 /* mark as a delta unit, so downstream will not try to synchronize on that
1166 * buffer - to actually start playback you need a real video keyframe */
1167 GST_BUFFER_FLAG_SET (video_codec_data, GST_BUFFER_FLAG_DELTA_UNIT);
1169 if (audio_codec_data != NULL) {
1170 GST_BUFFER_FLAG_SET (audio_codec_data, GST_BUFFER_FLAG_IN_CAPS);
1173 /* put buffers in streamheader */
1174 g_value_init (&streamheader, GST_TYPE_ARRAY);
1175 gst_flv_mux_put_buffer_in_streamheader (&streamheader, header);
1176 gst_flv_mux_put_buffer_in_streamheader (&streamheader, metadata);
1177 if (video_codec_data != NULL)
1178 gst_flv_mux_put_buffer_in_streamheader (&streamheader, video_codec_data);
1179 if (audio_codec_data != NULL)
1180 gst_flv_mux_put_buffer_in_streamheader (&streamheader, audio_codec_data);
1182 /* create the caps and put the streamheader in them */
1183 caps = gst_caps_new_simple ("video/x-flv", NULL);
1184 caps = gst_caps_make_writable (caps);
1185 structure = gst_caps_get_structure (caps, 0);
1186 gst_structure_set_value (structure, "streamheader", &streamheader);
1187 g_value_unset (&streamheader);
1189 if (GST_PAD_CAPS (mux->srcpad) == NULL)
1190 gst_pad_set_caps (mux->srcpad, caps);
1192 gst_caps_unref (caps);
1194 /* push the header buffer, the metadata and the codec info, if any */
1195 ret = gst_flv_mux_push (mux, header);
1196 if (ret != GST_FLOW_OK)
1198 ret = gst_flv_mux_push (mux, metadata);
1199 if (ret != GST_FLOW_OK)
1201 if (video_codec_data != NULL) {
1202 ret = gst_flv_mux_push (mux, video_codec_data);
1203 if (ret != GST_FLOW_OK)
1206 if (audio_codec_data != NULL) {
1207 ret = gst_flv_mux_push (mux, audio_codec_data);
1208 if (ret != GST_FLOW_OK)
1215 gst_flv_mux_update_index (GstFlvMux * mux, GstBuffer * buffer, GstFlvPad * cpad)
1218 * Add the tag byte offset and to the index if it's a valid seek point, which
1219 * means it's either a video keyframe or if there is no video pad (in that
1220 * case every FLV tag is a valid seek point)
1222 if (mux->have_video &&
1224 GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT)))
1227 if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) {
1228 GstFlvMuxIndexEntry *entry = g_slice_new (GstFlvMuxIndexEntry);
1229 entry->position = mux->byte_count;
1231 gst_guint64_to_gdouble (GST_BUFFER_TIMESTAMP (buffer)) / GST_SECOND;
1232 mux->index = g_list_prepend (mux->index, entry);
1236 static GstFlowReturn
1237 gst_flv_mux_write_buffer (GstFlvMux * mux, GstFlvPad * cpad, GstBuffer * buffer)
1242 /* clipping function arranged for running_time */
1244 if (!mux->streamable)
1245 gst_flv_mux_update_index (mux, buffer, cpad);
1247 tag = gst_flv_mux_buffer_to_tag (mux, buffer, cpad);
1249 gst_buffer_unref (buffer);
1251 ret = gst_flv_mux_push (mux, tag);
1253 if (ret == GST_FLOW_OK && GST_BUFFER_TIMESTAMP_IS_VALID (tag))
1254 cpad->last_timestamp = GST_BUFFER_TIMESTAMP (tag);
1260 gst_flv_mux_determine_duration (GstFlvMux * mux)
1263 GstClockTime duration = GST_CLOCK_TIME_NONE;
1265 GST_DEBUG_OBJECT (mux, "trying to determine the duration "
1266 "from pad timestamps");
1268 for (l = mux->collect->data; l != NULL; l = l->next) {
1269 GstFlvPad *cpad = l->data;
1271 if (cpad && (cpad->last_timestamp != GST_CLOCK_TIME_NONE)) {
1272 if (duration == GST_CLOCK_TIME_NONE)
1273 duration = cpad->last_timestamp;
1275 duration = MAX (duration, cpad->last_timestamp);
1282 static GstFlowReturn
1283 gst_flv_mux_rewrite_header (GstFlvMux * mux)
1285 GstBuffer *rewrite, *index, *tmp;
1290 guint32 index_len, allocate_size;
1291 guint32 i, index_skip;
1294 if (mux->streamable)
1297 /* seek back to the preallocated index space */
1298 event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
1299 13 + 29, GST_CLOCK_TIME_NONE, 13 + 29);
1300 if (!gst_pad_push_event (mux->srcpad, event)) {
1301 GST_WARNING_OBJECT (mux, "Seek to rewrite header failed");
1305 /* determine duration now based on our own timestamping,
1306 * so that it is likely many times better and consistent
1307 * than whatever obtained by some query */
1308 dur = gst_flv_mux_determine_duration (mux);
1309 if (dur != GST_CLOCK_TIME_NONE)
1310 mux->duration = dur;
1312 /* rewrite the duration tag */
1313 d = gst_guint64_to_gdouble (mux->duration);
1314 d /= (gdouble) GST_SECOND;
1316 GST_DEBUG_OBJECT (mux, "determined the final duration to be %f", d);
1318 rewrite = gst_flv_mux_create_number_script_value ("duration", d);
1320 /* rewrite the filesize tag */
1321 d = gst_guint64_to_gdouble (mux->byte_count);
1323 GST_DEBUG_OBJECT (mux, "putting total filesize %f in the metadata", d);
1325 tmp = gst_flv_mux_create_number_script_value ("filesize", d);
1326 rewrite = gst_buffer_join (rewrite, tmp);
1329 /* no index, so push buffer and return */
1330 return gst_flv_mux_push (mux, rewrite);
1333 /* rewrite the index */
1334 mux->index = g_list_reverse (mux->index);
1335 index_len = g_list_length (mux->index);
1337 /* We write at most MAX_INDEX_ENTRIES elements */
1338 if (index_len > MAX_INDEX_ENTRIES) {
1339 index_skip = 1 + index_len / MAX_INDEX_ENTRIES;
1340 index_len = (index_len + index_skip - 1) / index_skip;
1345 GST_DEBUG_OBJECT (mux, "Index length is %d", index_len);
1346 /* see size calculation in gst_flv_mux_preallocate_index */
1347 allocate_size = 11 + 8 + 22 + 10 + index_len * 18;
1348 GST_DEBUG_OBJECT (mux, "Allocating %d bytes for index", allocate_size);
1349 index = gst_buffer_new_and_alloc (allocate_size);
1350 data = GST_BUFFER_DATA (index);
1352 GST_WRITE_UINT16_BE (data, 9); /* the 'keyframes' key */
1353 memcpy (data + 2, "keyframes", 9);
1354 GST_WRITE_UINT8 (data + 11, 8); /* nested ECMA array */
1355 GST_WRITE_UINT32_BE (data + 12, 2); /* two elements */
1356 GST_WRITE_UINT16_BE (data + 16, 5); /* first string key: 'times' */
1357 memcpy (data + 18, "times", 5);
1358 GST_WRITE_UINT8 (data + 23, 10); /* strict array */
1359 GST_WRITE_UINT32_BE (data + 24, index_len);
1362 /* the keyframes' times */
1363 for (i = 0, l = mux->index; l; l = l->next, i++) {
1364 GstFlvMuxIndexEntry *entry = l->data;
1366 if (i % index_skip != 0)
1368 GST_WRITE_UINT8 (data, 0); /* numeric (aka double) */
1369 GST_WRITE_DOUBLE_BE (data + 1, entry->time);
1373 GST_WRITE_UINT16_BE (data, 13); /* second string key: 'filepositions' */
1374 memcpy (data + 2, "filepositions", 13);
1375 GST_WRITE_UINT8 (data + 15, 10); /* strict array */
1376 GST_WRITE_UINT32_BE (data + 16, index_len);
1379 /* the keyframes' file positions */
1380 for (i = 0, l = mux->index; l; l = l->next, i++) {
1381 GstFlvMuxIndexEntry *entry = l->data;
1383 if (i % index_skip != 0)
1385 GST_WRITE_UINT8 (data, 0);
1386 GST_WRITE_DOUBLE_BE (data + 1, entry->position);
1390 GST_WRITE_UINT24_BE (data, 9); /* finish the ECMA array */
1392 /* If there is space left in the prefilled area, reinsert the filler.
1393 There is at least 18 bytes free, so it will always fit. */
1394 if (index_len < MAX_INDEX_ENTRIES) {
1397 guint32 remaining_filler_size;
1399 tmp = gst_buffer_new_and_alloc (14);
1400 data = GST_BUFFER_DATA (tmp);
1401 GST_WRITE_UINT16_BE (data, 9);
1402 memcpy (data + 2, "gstfiller", 9);
1403 GST_WRITE_UINT8 (data + 11, 2); /* string */
1405 /* There is 18 bytes per remaining index entry minus what is used for
1406 * the'gstfiller' key. The rest is already filled with spaces, so just need
1407 * to update length. */
1408 remaining_filler_size = (MAX_INDEX_ENTRIES - index_len) * 18 - 14;
1409 GST_DEBUG_OBJECT (mux, "Remaining filler size is %d bytes",
1410 remaining_filler_size);
1411 GST_WRITE_UINT16_BE (data + 12, remaining_filler_size);
1412 index = gst_buffer_join (index, tmp);
1415 rewrite = gst_buffer_join (rewrite, index);
1417 gst_buffer_set_caps (rewrite, GST_PAD_CAPS (mux->srcpad));
1418 return gst_flv_mux_push (mux, rewrite);
1421 static GstFlowReturn
1422 gst_flv_mux_handle_buffer (GstCollectPads2 * pads, GstCollectData2 * cdata,
1423 GstBuffer * buffer, gpointer user_data)
1425 GstFlvMux *mux = GST_FLV_MUX (user_data);
1427 GstClockTime best_time;
1430 if (mux->state == GST_FLV_MUX_STATE_HEADER) {
1431 if (mux->collect->data == NULL) {
1432 GST_ELEMENT_ERROR (mux, STREAM, MUX, (NULL),
1433 ("No input streams configured"));
1434 return GST_FLOW_ERROR;
1437 if (gst_pad_push_event (mux->srcpad,
1438 gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES, 0, -1, 0)))
1439 ret = gst_flv_mux_write_header (mux);
1441 ret = GST_FLOW_ERROR;
1443 if (ret != GST_FLOW_OK)
1445 mux->state = GST_FLV_MUX_STATE_DATA;
1448 if (mux->new_tags) {
1449 GstBuffer *buf = gst_flv_mux_create_metadata (mux, FALSE);
1451 gst_flv_mux_push (mux, buf);
1452 mux->new_tags = FALSE;
1455 best = (GstFlvPad *) cdata;
1458 best_time = GST_BUFFER_TIMESTAMP (buffer);
1460 best_time = GST_CLOCK_TIME_NONE;
1463 /* The FLV timestamp is an int32 field. For non-live streams error out if a
1464 bigger timestamp is seen, for live the timestamp will get wrapped in
1465 gst_flv_mux_buffer_to_tag */
1466 if (!mux->streamable && GST_CLOCK_TIME_IS_VALID (best_time)
1467 && best_time / GST_MSECOND > G_MAXINT32) {
1468 GST_WARNING_OBJECT (mux, "Timestamp larger than FLV supports - EOS");
1469 gst_buffer_unref (buffer);
1475 return gst_flv_mux_write_buffer (mux, best, buffer);
1477 gst_flv_mux_rewrite_header (mux);
1478 gst_pad_push_event (mux->srcpad, gst_event_new_eos ());
1479 return GST_FLOW_UNEXPECTED;
1484 gst_flv_mux_get_property (GObject * object,
1485 guint prop_id, GValue * value, GParamSpec * pspec)
1487 GstFlvMux *mux = GST_FLV_MUX (object);
1490 case PROP_STREAMABLE:
1491 g_value_set_boolean (value, mux->streamable);
1494 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1500 gst_flv_mux_set_property (GObject * object,
1501 guint prop_id, const GValue * value, GParamSpec * pspec)
1503 GstFlvMux *mux = GST_FLV_MUX (object);
1506 case PROP_STREAMABLE:
1507 mux->streamable = g_value_get_boolean (value);
1508 if (mux->streamable)
1509 gst_tag_setter_set_tag_merge_mode (GST_TAG_SETTER (mux),
1510 GST_TAG_MERGE_REPLACE);
1512 gst_tag_setter_set_tag_merge_mode (GST_TAG_SETTER (mux),
1513 GST_TAG_MERGE_KEEP);
1516 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1521 static GstStateChangeReturn
1522 gst_flv_mux_change_state (GstElement * element, GstStateChange transition)
1524 GstStateChangeReturn ret;
1525 GstFlvMux *mux = GST_FLV_MUX (element);
1527 switch (transition) {
1528 case GST_STATE_CHANGE_NULL_TO_READY:
1530 case GST_STATE_CHANGE_READY_TO_PAUSED:
1531 gst_collect_pads2_start (mux->collect);
1533 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
1535 case GST_STATE_CHANGE_PAUSED_TO_READY:
1536 gst_collect_pads2_stop (mux->collect);
1542 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
1544 switch (transition) {
1545 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
1547 case GST_STATE_CHANGE_PAUSED_TO_READY:
1548 gst_flv_mux_reset (GST_ELEMENT (mux));
1550 case GST_STATE_CHANGE_READY_TO_NULL: