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, &videosink_templ);
144 gst_element_class_add_static_pad_template (element_class, &audiosink_templ);
145 gst_element_class_add_static_pad_template (element_class, &src_templ);
146 gst_element_class_set_details_simple (element_class, "FLV muxer",
148 "Muxes video/audio streams into a FLV stream",
149 "Sebastian Dröge <sebastian.droege@collabora.co.uk>");
151 GST_DEBUG_CATEGORY_INIT (flvmux_debug, "flvmux", 0, "FLV muxer");
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);
192 gst_flv_mux_init (GstFlvMux * mux, GstFlvMuxClass * g_class)
194 mux->srcpad = gst_pad_new_from_static_template (&src_templ, "src");
195 gst_pad_set_event_function (mux->srcpad, gst_flv_mux_handle_src_event);
196 gst_element_add_pad (GST_ELEMENT (mux), mux->srcpad);
199 mux->streamable = DEFAULT_STREAMABLE;
201 mux->new_tags = FALSE;
203 mux->collect = gst_collect_pads2_new ();
204 gst_collect_pads2_set_buffer_function (mux->collect,
205 GST_DEBUG_FUNCPTR (gst_flv_mux_handle_buffer), mux);
206 gst_collect_pads2_set_event_function (mux->collect,
207 GST_DEBUG_FUNCPTR (gst_flv_mux_handle_sink_event), mux);
208 gst_collect_pads2_set_clip_function (mux->collect,
209 GST_DEBUG_FUNCPTR (gst_collect_pads2_clip_running_time), mux);
211 gst_flv_mux_reset (GST_ELEMENT (mux));
215 gst_flv_mux_finalize (GObject * object)
217 GstFlvMux *mux = GST_FLV_MUX (object);
219 gst_object_unref (mux->collect);
221 G_OBJECT_CLASS (parent_class)->finalize (object);
225 gst_flv_mux_reset (GstElement * element)
227 GstFlvMux *mux = GST_FLV_MUX (element);
230 for (sl = mux->collect->data; sl != NULL; sl = g_slist_next (sl)) {
231 GstFlvPad *cpad = (GstFlvPad *) sl->data;
233 gst_flv_mux_reset_pad (mux, cpad, cpad->video);
236 g_list_foreach (mux->index, (GFunc) gst_flv_mux_index_entry_free, NULL);
237 g_list_free (mux->index);
241 mux->have_audio = mux->have_video = FALSE;
242 mux->duration = GST_CLOCK_TIME_NONE;
243 mux->new_tags = FALSE;
245 mux->state = GST_FLV_MUX_STATE_HEADER;
248 gst_tag_setter_reset_tags (GST_TAG_SETTER (mux));
252 gst_flv_mux_handle_src_event (GstPad * pad, GstEvent * event)
256 type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN;
260 /* disable seeking for now */
266 return gst_pad_event_default (pad, event);
270 gst_flv_mux_handle_sink_event (GstCollectPads2 * pads, GstCollectData2 * data,
271 GstEvent * event, gpointer user_data)
273 GstFlvMux *mux = GST_FLV_MUX (user_data);
275 switch (GST_EVENT_TYPE (event)) {
278 GstTagSetter *setter = GST_TAG_SETTER (mux);
279 const GstTagMergeMode mode = gst_tag_setter_get_tag_merge_mode (setter);
281 gst_event_parse_tag (event, &list);
282 gst_tag_setter_merge_tags (setter, list, mode);
283 mux->new_tags = TRUE;
290 /* now GstCollectPads2 can take care of the rest, e.g. EOS */
295 gst_flv_mux_video_pad_setcaps (GstPad * pad, GstCaps * caps)
297 GstFlvMux *mux = GST_FLV_MUX (gst_pad_get_parent (pad));
298 GstFlvPad *cpad = (GstFlvPad *) gst_pad_get_element_private (pad);
302 s = gst_caps_get_structure (caps, 0);
304 if (strcmp (gst_structure_get_name (s), "video/x-flash-video") == 0) {
305 cpad->video_codec = 2;
306 } else if (strcmp (gst_structure_get_name (s), "video/x-flash-screen") == 0) {
307 cpad->video_codec = 3;
308 } else if (strcmp (gst_structure_get_name (s), "video/x-vp6-flash") == 0) {
309 cpad->video_codec = 4;
310 } else if (strcmp (gst_structure_get_name (s), "video/x-vp6-alpha") == 0) {
311 cpad->video_codec = 5;
312 } else if (strcmp (gst_structure_get_name (s), "video/x-h264") == 0) {
313 cpad->video_codec = 7;
318 if (ret && gst_structure_has_field (s, "codec_data")) {
319 const GValue *val = gst_structure_get_value (s, "codec_data");
322 cpad->video_codec_data = gst_buffer_ref (gst_value_get_buffer (val));
325 gst_object_unref (mux);
331 gst_flv_mux_audio_pad_setcaps (GstPad * pad, GstCaps * caps)
333 GstFlvMux *mux = GST_FLV_MUX (gst_pad_get_parent (pad));
334 GstFlvPad *cpad = (GstFlvPad *) gst_pad_get_element_private (pad);
338 s = gst_caps_get_structure (caps, 0);
340 if (strcmp (gst_structure_get_name (s), "audio/x-adpcm") == 0) {
341 const gchar *layout = gst_structure_get_string (s, "layout");
342 if (layout && strcmp (layout, "swf") == 0) {
343 cpad->audio_codec = 1;
347 } else if (strcmp (gst_structure_get_name (s), "audio/mpeg") == 0) {
350 if (gst_structure_get_int (s, "mpegversion", &mpegversion)) {
351 if (mpegversion == 1) {
354 if (gst_structure_get_int (s, "layer", &layer) && layer == 3) {
357 if (gst_structure_get_int (s, "rate", &rate) && rate == 8000)
358 cpad->audio_codec = 14;
360 cpad->audio_codec = 2;
364 } else if (mpegversion == 4 || mpegversion == 2) {
365 cpad->audio_codec = 10;
372 } else if (strcmp (gst_structure_get_name (s), "audio/x-nellymoser") == 0) {
375 if (gst_structure_get_int (s, "rate", &rate)
376 && gst_structure_get_int (s, "channels", &channels)) {
377 if (channels == 1 && rate == 16000)
378 cpad->audio_codec = 4;
379 else if (channels == 1 && rate == 8000)
380 cpad->audio_codec = 5;
382 cpad->audio_codec = 6;
384 cpad->audio_codec = 6;
386 } else if (strcmp (gst_structure_get_name (s), "audio/x-raw-int") == 0) {
389 if (gst_structure_get_int (s, "endianness", &endianness)
390 && endianness == G_LITTLE_ENDIAN)
391 cpad->audio_codec = 3;
394 } else if (strcmp (gst_structure_get_name (s), "audio/x-alaw") == 0) {
395 cpad->audio_codec = 7;
396 } else if (strcmp (gst_structure_get_name (s), "audio/x-mulaw") == 0) {
397 cpad->audio_codec = 8;
398 } else if (strcmp (gst_structure_get_name (s), "audio/x-speex") == 0) {
399 cpad->audio_codec = 11;
405 gint rate, channels, width;
407 if (gst_structure_get_int (s, "rate", &rate)) {
408 if (cpad->audio_codec == 10)
410 else if (rate == 5512)
412 else if (rate == 11025)
414 else if (rate == 22050)
416 else if (rate == 44100)
418 else if (rate == 8000 && (cpad->audio_codec == 5
419 || cpad->audio_codec == 14))
421 else if (rate == 16000 && cpad->audio_codec == 4)
425 } else if (cpad->audio_codec == 10) {
431 if (gst_structure_get_int (s, "channels", &channels)) {
432 if (cpad->audio_codec == 4 || cpad->audio_codec == 5
433 || cpad->audio_codec == 6)
435 else if (cpad->audio_codec == 10)
437 else if (channels == 1)
439 else if (channels == 2)
443 } else if (cpad->audio_codec == 4 || cpad->audio_codec == 5
444 || cpad->audio_codec == 6) {
446 } else if (cpad->audio_codec == 10) {
452 if (gst_structure_get_int (s, "width", &width)) {
453 if (cpad->audio_codec != 3)
457 else if (width == 16)
461 } else if (cpad->audio_codec != 3) {
468 if (ret && gst_structure_has_field (s, "codec_data")) {
469 const GValue *val = gst_structure_get_value (s, "codec_data");
472 cpad->audio_codec_data = gst_buffer_ref (gst_value_get_buffer (val));
475 gst_object_unref (mux);
481 gst_flv_mux_reset_pad (GstFlvMux * mux, GstFlvPad * cpad, gboolean video)
485 if (cpad->audio_codec_data)
486 gst_buffer_unref (cpad->audio_codec_data);
487 cpad->audio_codec_data = NULL;
488 cpad->audio_codec = G_MAXUINT;
489 cpad->rate = G_MAXUINT;
490 cpad->width = G_MAXUINT;
491 cpad->channels = G_MAXUINT;
493 if (cpad->video_codec_data)
494 gst_buffer_unref (cpad->video_codec_data);
495 cpad->video_codec_data = NULL;
496 cpad->video_codec = G_MAXUINT;
497 cpad->last_timestamp = 0;
501 gst_flv_mux_request_new_pad (GstElement * element,
502 GstPadTemplate * templ, const gchar * pad_name)
504 GstElementClass *klass = GST_ELEMENT_GET_CLASS (element);
505 GstFlvMux *mux = GST_FLV_MUX (element);
508 const gchar *name = NULL;
509 GstPadSetCapsFunction setcapsfunc = NULL;
512 if (mux->state != GST_FLV_MUX_STATE_HEADER) {
513 GST_WARNING_OBJECT (mux, "Can't request pads after writing header");
517 if (templ == gst_element_class_get_pad_template (klass, "audio")) {
518 if (mux->have_audio) {
519 GST_WARNING_OBJECT (mux, "Already have an audio pad");
522 mux->have_audio = TRUE;
525 setcapsfunc = GST_DEBUG_FUNCPTR (gst_flv_mux_audio_pad_setcaps);
526 } else if (templ == gst_element_class_get_pad_template (klass, "video")) {
527 if (mux->have_video) {
528 GST_WARNING_OBJECT (mux, "Already have a video pad");
531 mux->have_video = TRUE;
534 setcapsfunc = GST_DEBUG_FUNCPTR (gst_flv_mux_video_pad_setcaps);
536 GST_WARNING_OBJECT (mux, "Invalid template");
540 pad = gst_pad_new_from_template (templ, name);
542 gst_collect_pads2_add_pad (mux->collect, pad, sizeof (GstFlvPad));
544 cpad->audio_codec_data = NULL;
545 cpad->video_codec_data = NULL;
546 gst_flv_mux_reset_pad (mux, cpad, video);
548 gst_pad_set_setcaps_function (pad, setcapsfunc);
549 gst_pad_set_active (pad, TRUE);
550 gst_element_add_pad (element, pad);
556 gst_flv_mux_release_pad (GstElement * element, GstPad * pad)
558 GstFlvMux *mux = GST_FLV_MUX (GST_PAD_PARENT (pad));
559 GstFlvPad *cpad = (GstFlvPad *) gst_pad_get_element_private (pad);
561 gst_flv_mux_reset_pad (mux, cpad, cpad->video);
562 gst_collect_pads2_remove_pad (mux->collect, pad);
563 gst_element_remove_pad (element, pad);
567 gst_flv_mux_push (GstFlvMux * mux, GstBuffer * buffer)
569 buffer = gst_buffer_make_metadata_writable (buffer);
570 gst_buffer_set_caps (buffer, GST_PAD_CAPS (mux->srcpad));
571 /* pushing the buffer that rewrites the header will make it no longer be the
572 * total output size in bytes, but it doesn't matter at that point */
573 mux->byte_count += GST_BUFFER_SIZE (buffer);
575 return gst_pad_push (mux->srcpad, buffer);
579 gst_flv_mux_create_header (GstFlvMux * mux)
584 header = gst_buffer_new_and_alloc (9 + 4);
585 data = GST_BUFFER_DATA (header);
590 data[3] = 0x01; /* Version */
592 data[4] = (mux->have_audio << 2) | mux->have_video; /* flags */
593 GST_WRITE_UINT32_BE (data + 5, 9); /* data offset */
594 GST_WRITE_UINT32_BE (data + 9, 0); /* previous tag size */
600 gst_flv_mux_preallocate_index (GstFlvMux * mux)
604 gint preallocate_size;
606 /* preallocate index of size:
607 * - 'keyframes' ECMA array key: 2 + 9 = 11 bytes
608 * - nested ECMA array header, length and end marker: 8 bytes
609 * - 'times' and 'filepositions' keys: 22 bytes
610 * - two strict arrays headers and lengths: 10 bytes
611 * - each index entry: 18 bytes
613 preallocate_size = 11 + 8 + 22 + 10 + MAX_INDEX_ENTRIES * 18;
614 GST_DEBUG_OBJECT (mux, "preallocating %d bytes for the index",
617 tmp = gst_buffer_new_and_alloc (preallocate_size);
618 data = GST_BUFFER_DATA (tmp);
620 /* prefill the space with a gstfiller: <spaces> script tag variable */
621 GST_WRITE_UINT16_BE (data, 9); /* 9 characters */
622 memcpy (data + 2, "gstfiller", 9);
623 GST_WRITE_UINT8 (data + 11, AMF0_STRING_MARKER); /* a string value */
624 GST_WRITE_UINT16_BE (data + 12, preallocate_size - 14);
625 memset (data + 14, ' ', preallocate_size - 14); /* the rest is spaces */
630 gst_flv_mux_create_number_script_value (const gchar * name, gdouble value)
632 GstBuffer *tmp = gst_buffer_new_and_alloc (2 + strlen (name) + 1 + 8);
633 guint8 *data = GST_BUFFER_DATA (tmp);
634 gsize len = strlen (name);
636 GST_WRITE_UINT16_BE (data, len);
637 data += 2; /* name length */
638 memcpy (data, name, len);
640 *data++ = AMF0_NUMBER_MARKER; /* double type */
641 GST_WRITE_DOUBLE_BE (data, value);
647 gst_flv_mux_create_metadata (GstFlvMux * mux, gboolean full)
649 const GstTagList *tags;
650 GstBuffer *script_tag, *tmp;
652 gint i, n_tags, tags_written = 0;
654 tags = gst_tag_setter_get_tag_list (GST_TAG_SETTER (mux));
656 GST_DEBUG_OBJECT (mux, "tags = %" GST_PTR_FORMAT, tags);
658 script_tag = gst_buffer_new_and_alloc (11);
659 data = GST_BUFFER_DATA (script_tag);
663 /* Data size, unknown for now */
669 data[4] = data[5] = data[6] = data[7] = 0;
672 data[8] = data[9] = data[10] = 0;
674 tmp = gst_buffer_new_and_alloc (13);
675 data = GST_BUFFER_DATA (tmp);
676 data[0] = AMF0_STRING_MARKER; /* string */
678 data[2] = 10; /* length 10 */
679 memcpy (&data[3], "onMetaData", 10);
681 script_tag = gst_buffer_join (script_tag, tmp);
683 n_tags = (tags) ? gst_structure_n_fields ((GstStructure *) tags) : 0;
684 tmp = gst_buffer_new_and_alloc (5);
685 data = GST_BUFFER_DATA (tmp);
686 data[0] = 8; /* ECMA array */
687 GST_WRITE_UINT32_BE (data + 1, n_tags);
688 script_tag = gst_buffer_join (script_tag, tmp);
693 /* Some players expect the 'duration' to be always set. Fill it out later,
694 after querying the pads or after getting EOS */
695 if (!mux->streamable) {
696 tmp = gst_flv_mux_create_number_script_value ("duration", 86400);
697 script_tag = gst_buffer_join (script_tag, tmp);
700 /* Sometimes the information about the total file size is useful for the
701 player. It will be filled later, after getting EOS */
702 tmp = gst_flv_mux_create_number_script_value ("filesize", 0);
703 script_tag = gst_buffer_join (script_tag, tmp);
706 /* Preallocate space for the index to be written at EOS */
707 tmp = gst_flv_mux_preallocate_index (mux);
708 script_tag = gst_buffer_join (script_tag, tmp);
710 GST_DEBUG_OBJECT (mux, "not preallocating index, streamable mode");
714 for (i = 0; tags && i < n_tags; i++) {
715 const gchar *tag_name =
716 gst_structure_nth_field_name ((const GstStructure *) tags, i);
717 if (!strcmp (tag_name, GST_TAG_DURATION)) {
720 if (!gst_tag_list_get_uint64 (tags, GST_TAG_DURATION, &dur))
723 } else if (!strcmp (tag_name, GST_TAG_ARTIST) ||
724 !strcmp (tag_name, GST_TAG_TITLE)) {
726 const gchar *t = NULL;
728 if (!strcmp (tag_name, GST_TAG_ARTIST))
730 else if (!strcmp (tag_name, GST_TAG_TITLE))
733 if (!gst_tag_list_get_string (tags, tag_name, &s))
736 tmp = gst_buffer_new_and_alloc (2 + strlen (t) + 1 + 2 + strlen (s));
737 data = GST_BUFFER_DATA (tmp);
738 data[0] = 0; /* tag name length */
739 data[1] = strlen (t);
740 memcpy (&data[2], t, strlen (t));
741 data[2 + strlen (t)] = 2; /* string */
742 data[3 + strlen (t)] = (strlen (s) >> 8) & 0xff;
743 data[4 + strlen (t)] = (strlen (s)) & 0xff;
744 memcpy (&data[5 + strlen (t)], s, strlen (s));
745 script_tag = gst_buffer_join (script_tag, tmp);
755 if (mux->duration == GST_CLOCK_TIME_NONE) {
758 GstFormat fmt = GST_FORMAT_TIME;
761 for (l = mux->collect->data; l; l = l->next) {
762 GstCollectData2 *cdata = l->data;
764 fmt = GST_FORMAT_TIME;
766 if (gst_pad_query_peer_duration (cdata->pad, &fmt, (gint64 *) & dur) &&
767 fmt == GST_FORMAT_TIME && dur != GST_CLOCK_TIME_NONE) {
768 if (mux->duration == GST_CLOCK_TIME_NONE)
771 mux->duration = MAX (dur, mux->duration);
776 if (!mux->streamable && mux->duration != GST_CLOCK_TIME_NONE) {
778 d = gst_guint64_to_gdouble (mux->duration);
779 d /= (gdouble) GST_SECOND;
781 GST_DEBUG_OBJECT (mux, "determined the duration to be %f", d);
782 data = GST_BUFFER_DATA (script_tag);
783 GST_WRITE_DOUBLE_BE (data + 29 + 2 + 8 + 1, d);
786 if (mux->have_video) {
787 GstPad *video_pad = NULL;
789 GSList *l = mux->collect->data;
791 for (; l; l = l->next) {
793 if (cpad && cpad->video) {
794 video_pad = cpad->collect.pad;
799 if (video_pad && GST_PAD_CAPS (video_pad)) {
800 GstStructure *s = gst_caps_get_structure (GST_PAD_CAPS (video_pad), 0);
804 GST_DEBUG_OBJECT (mux, "putting videocodecid %d in the metadata",
807 tmp = gst_flv_mux_create_number_script_value ("videocodecid",
809 script_tag = gst_buffer_join (script_tag, tmp);
812 if (gst_structure_get_int (s, "width", &size)) {
813 GST_DEBUG_OBJECT (mux, "putting width %d in the metadata", size);
815 tmp = gst_flv_mux_create_number_script_value ("width", size);
816 script_tag = gst_buffer_join (script_tag, tmp);
820 if (gst_structure_get_int (s, "height", &size)) {
821 GST_DEBUG_OBJECT (mux, "putting height %d in the metadata", size);
823 tmp = gst_flv_mux_create_number_script_value ("height", size);
824 script_tag = gst_buffer_join (script_tag, tmp);
828 if (gst_structure_get_fraction (s, "pixel-aspect-ratio", &num, &den)) {
832 GST_DEBUG_OBJECT (mux, "putting AspectRatioX %f in the metadata", d);
834 tmp = gst_flv_mux_create_number_script_value ("AspectRatioX", d);
835 script_tag = gst_buffer_join (script_tag, tmp);
839 GST_DEBUG_OBJECT (mux, "putting AspectRatioY %f in the metadata", d);
841 tmp = gst_flv_mux_create_number_script_value ("AspectRatioY", d);
842 script_tag = gst_buffer_join (script_tag, tmp);
846 if (gst_structure_get_fraction (s, "framerate", &num, &den)) {
849 gst_util_fraction_to_double (num, den, &d);
850 GST_DEBUG_OBJECT (mux, "putting framerate %f in the metadata", d);
852 tmp = gst_flv_mux_create_number_script_value ("framerate", d);
853 script_tag = gst_buffer_join (script_tag, tmp);
859 if (mux->have_audio) {
860 GstPad *audio_pad = NULL;
862 GSList *l = mux->collect->data;
864 for (; l; l = l->next) {
866 if (cpad && !cpad->video) {
867 audio_pad = cpad->collect.pad;
873 GST_DEBUG_OBJECT (mux, "putting audiocodecid %d in the metadata",
876 tmp = gst_flv_mux_create_number_script_value ("audiocodecid",
878 script_tag = gst_buffer_join (script_tag, tmp);
884 const gchar *s = "GStreamer FLV muxer";
886 tmp = gst_buffer_new_and_alloc (2 + 15 + 1 + 2 + strlen (s));
887 data = GST_BUFFER_DATA (tmp);
888 data[0] = 0; /* 15 bytes name */
890 memcpy (&data[2], "metadatacreator", 15);
891 data[17] = 2; /* string */
892 data[18] = (strlen (s) >> 8) & 0xff;
893 data[19] = (strlen (s)) & 0xff;
894 memcpy (&data[20], s, strlen (s));
895 script_tag = gst_buffer_join (script_tag, tmp);
901 GTimeVal tv = { 0, };
905 static const gchar *weekdays[] = {
906 "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
908 static const gchar *months[] = {
909 "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul",
910 "Aug", "Sep", "Oct", "Nov", "Dec"
913 g_get_current_time (&tv);
917 s = g_strdup_printf ("%s %s %d %d:%d:%d %d", weekdays[tm->tm_wday],
918 months[tm->tm_mon], tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec,
921 tmp = gst_buffer_new_and_alloc (2 + 12 + 1 + 2 + strlen (s));
922 data = GST_BUFFER_DATA (tmp);
923 data[0] = 0; /* 12 bytes name */
925 memcpy (&data[2], "creationdate", 12);
926 data[14] = 2; /* string */
927 data[15] = (strlen (s) >> 8) & 0xff;
928 data[16] = (strlen (s)) & 0xff;
929 memcpy (&data[17], s, strlen (s));
930 script_tag = gst_buffer_join (script_tag, tmp);
939 gst_buffer_unref (script_tag);
944 tmp = gst_buffer_new_and_alloc (2 + 0 + 1);
945 data = GST_BUFFER_DATA (tmp);
946 data[0] = 0; /* 0 byte size */
948 data[2] = 9; /* end marker */
949 script_tag = gst_buffer_join (script_tag, tmp);
952 tmp = gst_buffer_new_and_alloc (4);
953 data = GST_BUFFER_DATA (tmp);
954 GST_WRITE_UINT32_BE (data, GST_BUFFER_SIZE (script_tag));
955 script_tag = gst_buffer_join (script_tag, tmp);
957 data = GST_BUFFER_DATA (script_tag);
958 data[1] = ((GST_BUFFER_SIZE (script_tag) - 11 - 4) >> 16) & 0xff;
959 data[2] = ((GST_BUFFER_SIZE (script_tag) - 11 - 4) >> 8) & 0xff;
960 data[3] = ((GST_BUFFER_SIZE (script_tag) - 11 - 4) >> 0) & 0xff;
962 GST_WRITE_UINT32_BE (data + 11 + 13 + 1, tags_written);
969 gst_flv_mux_buffer_to_tag_internal (GstFlvMux * mux, GstBuffer * buffer,
970 GstFlvPad * cpad, gboolean is_codec_data)
976 (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) ? GST_BUFFER_TIMESTAMP (buffer) /
977 GST_MSECOND : cpad->last_timestamp / GST_MSECOND;
982 if (cpad->video_codec == 7)
983 size += 4 + GST_BUFFER_SIZE (buffer);
985 size += GST_BUFFER_SIZE (buffer);
988 if (cpad->audio_codec == 10)
989 size += 1 + GST_BUFFER_SIZE (buffer);
991 size += GST_BUFFER_SIZE (buffer);
995 tag = gst_buffer_new_and_alloc (size);
996 GST_BUFFER_TIMESTAMP (tag) = timestamp * GST_MSECOND;
997 data = GST_BUFFER_DATA (tag);
998 memset (data, 0, size);
1000 data[0] = (cpad->video) ? 9 : 8;
1002 data[1] = ((size - 11 - 4) >> 16) & 0xff;
1003 data[2] = ((size - 11 - 4) >> 8) & 0xff;
1004 data[3] = ((size - 11 - 4) >> 0) & 0xff;
1006 /* wrap the timestamp every G_MAXINT32 miliseconds */
1007 timestamp &= 0x7fffffff;
1008 data[4] = (timestamp >> 16) & 0xff;
1009 data[5] = (timestamp >> 8) & 0xff;
1010 data[6] = (timestamp >> 0) & 0xff;
1011 data[7] = (timestamp >> 24) & 0xff;
1013 data[8] = data[9] = data[10] = 0;
1016 if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT))
1021 data[11] |= cpad->video_codec & 0x0f;
1023 if (cpad->video_codec == 7) {
1024 data[12] = is_codec_data ? 0 : 1;
1026 /* FIXME: what to do about composition time */
1027 data[13] = data[14] = data[15] = 0;
1029 memcpy (data + 11 + 1 + 4, GST_BUFFER_DATA (buffer),
1030 GST_BUFFER_SIZE (buffer));
1032 memcpy (data + 11 + 1, GST_BUFFER_DATA (buffer),
1033 GST_BUFFER_SIZE (buffer));
1036 data[11] |= (cpad->audio_codec << 4) & 0xf0;
1037 data[11] |= (cpad->rate << 2) & 0x0c;
1038 data[11] |= (cpad->width << 1) & 0x02;
1039 data[11] |= (cpad->channels << 0) & 0x01;
1041 if (cpad->audio_codec == 10) {
1042 data[12] = is_codec_data ? 0 : 1;
1044 memcpy (data + 11 + 1 + 1, GST_BUFFER_DATA (buffer),
1045 GST_BUFFER_SIZE (buffer));
1047 memcpy (data + 11 + 1, GST_BUFFER_DATA (buffer),
1048 GST_BUFFER_SIZE (buffer));
1052 GST_WRITE_UINT32_BE (data + size - 4, size - 4);
1054 gst_buffer_copy_metadata (tag, buffer, GST_BUFFER_COPY_TIMESTAMPS);
1055 /* mark the buffer if it's an audio buffer and there's also video being muxed
1056 * or it's a video interframe */
1057 if ((mux->have_video && !cpad->video) ||
1058 GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT))
1059 GST_BUFFER_FLAG_SET (tag, GST_BUFFER_FLAG_DELTA_UNIT);
1061 GST_BUFFER_OFFSET (tag) = GST_BUFFER_OFFSET_END (tag) =
1062 GST_BUFFER_OFFSET_NONE;
1067 static inline GstBuffer *
1068 gst_flv_mux_buffer_to_tag (GstFlvMux * mux, GstBuffer * buffer,
1071 return gst_flv_mux_buffer_to_tag_internal (mux, buffer, cpad, FALSE);
1074 static inline GstBuffer *
1075 gst_flv_mux_codec_data_buffer_to_tag (GstFlvMux * mux, GstBuffer * buffer,
1078 return gst_flv_mux_buffer_to_tag_internal (mux, buffer, cpad, TRUE);
1082 gst_flv_mux_put_buffer_in_streamheader (GValue * streamheader,
1085 GValue value = { 0 };
1088 g_value_init (&value, GST_TYPE_BUFFER);
1089 buf = gst_buffer_copy (buffer);
1090 gst_value_set_buffer (&value, buf);
1091 gst_buffer_unref (buf);
1092 gst_value_array_append_value (streamheader, &value);
1093 g_value_unset (&value);
1096 static GstFlowReturn
1097 gst_flv_mux_write_header (GstFlvMux * mux)
1099 GstBuffer *header, *metadata;
1100 GstBuffer *video_codec_data, *audio_codec_data;
1102 GstStructure *structure;
1103 GValue streamheader = { 0 };
1107 /* if not streaming, check if downstream is seekable */
1108 if (!mux->streamable) {
1112 query = gst_query_new_seeking (GST_FORMAT_BYTES);
1113 if (gst_pad_peer_query (mux->srcpad, query)) {
1114 gst_query_parse_seeking (query, NULL, &seekable, NULL, NULL);
1115 GST_INFO_OBJECT (mux, "downstream is %sseekable", seekable ? "" : "not ");
1117 mux->streamable = TRUE;
1118 g_object_notify (G_OBJECT (mux), "streamable");
1119 GST_WARNING_OBJECT (mux, "downstream is not seekable, but "
1120 "streamable=false. Will ignore that and create streamable output "
1124 /* have to assume seeking is supported if query not handled downstream */
1125 /* FIXME 0.11: change to query not handled => seeking not supported */
1126 GST_WARNING_OBJECT (mux, "downstream did not handle seeking query");
1128 gst_query_unref (query);
1131 header = gst_flv_mux_create_header (mux);
1132 metadata = gst_flv_mux_create_metadata (mux, TRUE);
1133 video_codec_data = NULL;
1134 audio_codec_data = NULL;
1136 for (l = mux->collect->data; l != NULL; l = l->next) {
1137 GstFlvPad *cpad = l->data;
1139 /* Get H.264 and AAC codec data, if present */
1140 if (cpad && cpad->video && cpad->video_codec == 7) {
1141 if (cpad->video_codec_data == NULL)
1142 GST_WARNING_OBJECT (mux, "Codec data for video stream not found, "
1143 "output might not be playable");
1146 gst_flv_mux_codec_data_buffer_to_tag (mux, cpad->video_codec_data,
1148 } else if (cpad && !cpad->video && cpad->audio_codec == 10) {
1149 if (cpad->audio_codec_data == NULL)
1150 GST_WARNING_OBJECT (mux, "Codec data for audio stream not found, "
1151 "output might not be playable");
1154 gst_flv_mux_codec_data_buffer_to_tag (mux, cpad->audio_codec_data,
1159 /* mark buffers that will go in the streamheader */
1160 GST_BUFFER_FLAG_SET (header, GST_BUFFER_FLAG_IN_CAPS);
1161 GST_BUFFER_FLAG_SET (metadata, GST_BUFFER_FLAG_IN_CAPS);
1162 if (video_codec_data != NULL) {
1163 GST_BUFFER_FLAG_SET (video_codec_data, GST_BUFFER_FLAG_IN_CAPS);
1164 /* mark as a delta unit, so downstream will not try to synchronize on that
1165 * buffer - to actually start playback you need a real video keyframe */
1166 GST_BUFFER_FLAG_SET (video_codec_data, GST_BUFFER_FLAG_DELTA_UNIT);
1168 if (audio_codec_data != NULL) {
1169 GST_BUFFER_FLAG_SET (audio_codec_data, GST_BUFFER_FLAG_IN_CAPS);
1172 /* put buffers in streamheader */
1173 g_value_init (&streamheader, GST_TYPE_ARRAY);
1174 gst_flv_mux_put_buffer_in_streamheader (&streamheader, header);
1175 gst_flv_mux_put_buffer_in_streamheader (&streamheader, metadata);
1176 if (video_codec_data != NULL)
1177 gst_flv_mux_put_buffer_in_streamheader (&streamheader, video_codec_data);
1178 if (audio_codec_data != NULL)
1179 gst_flv_mux_put_buffer_in_streamheader (&streamheader, audio_codec_data);
1181 /* create the caps and put the streamheader in them */
1182 caps = gst_caps_new_simple ("video/x-flv", NULL);
1183 caps = gst_caps_make_writable (caps);
1184 structure = gst_caps_get_structure (caps, 0);
1185 gst_structure_set_value (structure, "streamheader", &streamheader);
1186 g_value_unset (&streamheader);
1188 if (GST_PAD_CAPS (mux->srcpad) == NULL)
1189 gst_pad_set_caps (mux->srcpad, caps);
1191 gst_caps_unref (caps);
1193 /* push the header buffer, the metadata and the codec info, if any */
1194 ret = gst_flv_mux_push (mux, header);
1195 if (ret != GST_FLOW_OK)
1197 ret = gst_flv_mux_push (mux, metadata);
1198 if (ret != GST_FLOW_OK)
1200 if (video_codec_data != NULL) {
1201 ret = gst_flv_mux_push (mux, video_codec_data);
1202 if (ret != GST_FLOW_OK)
1205 if (audio_codec_data != NULL) {
1206 ret = gst_flv_mux_push (mux, audio_codec_data);
1207 if (ret != GST_FLOW_OK)
1214 gst_flv_mux_update_index (GstFlvMux * mux, GstBuffer * buffer, GstFlvPad * cpad)
1217 * Add the tag byte offset and to the index if it's a valid seek point, which
1218 * means it's either a video keyframe or if there is no video pad (in that
1219 * case every FLV tag is a valid seek point)
1221 if (mux->have_video &&
1223 GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT)))
1226 if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) {
1227 GstFlvMuxIndexEntry *entry = g_slice_new (GstFlvMuxIndexEntry);
1228 entry->position = mux->byte_count;
1230 gst_guint64_to_gdouble (GST_BUFFER_TIMESTAMP (buffer)) / GST_SECOND;
1231 mux->index = g_list_prepend (mux->index, entry);
1235 static GstFlowReturn
1236 gst_flv_mux_write_buffer (GstFlvMux * mux, GstFlvPad * cpad, GstBuffer * buffer)
1241 /* clipping function arranged for running_time */
1243 if (!mux->streamable)
1244 gst_flv_mux_update_index (mux, buffer, cpad);
1246 tag = gst_flv_mux_buffer_to_tag (mux, buffer, cpad);
1248 gst_buffer_unref (buffer);
1250 ret = gst_flv_mux_push (mux, tag);
1252 if (ret == GST_FLOW_OK && GST_BUFFER_TIMESTAMP_IS_VALID (tag))
1253 cpad->last_timestamp = GST_BUFFER_TIMESTAMP (tag);
1259 gst_flv_mux_determine_duration (GstFlvMux * mux)
1262 GstClockTime duration = GST_CLOCK_TIME_NONE;
1264 GST_DEBUG_OBJECT (mux, "trying to determine the duration "
1265 "from pad timestamps");
1267 for (l = mux->collect->data; l != NULL; l = l->next) {
1268 GstFlvPad *cpad = l->data;
1270 if (cpad && (cpad->last_timestamp != GST_CLOCK_TIME_NONE)) {
1271 if (duration == GST_CLOCK_TIME_NONE)
1272 duration = cpad->last_timestamp;
1274 duration = MAX (duration, cpad->last_timestamp);
1281 static GstFlowReturn
1282 gst_flv_mux_rewrite_header (GstFlvMux * mux)
1284 GstBuffer *rewrite, *index, *tmp;
1289 guint32 index_len, allocate_size;
1290 guint32 i, index_skip;
1293 if (mux->streamable)
1296 /* seek back to the preallocated index space */
1297 event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES,
1298 13 + 29, GST_CLOCK_TIME_NONE, 13 + 29);
1299 if (!gst_pad_push_event (mux->srcpad, event)) {
1300 GST_WARNING_OBJECT (mux, "Seek to rewrite header failed");
1304 /* determine duration now based on our own timestamping,
1305 * so that it is likely many times better and consistent
1306 * than whatever obtained by some query */
1307 dur = gst_flv_mux_determine_duration (mux);
1308 if (dur != GST_CLOCK_TIME_NONE)
1309 mux->duration = dur;
1311 /* rewrite the duration tag */
1312 d = gst_guint64_to_gdouble (mux->duration);
1313 d /= (gdouble) GST_SECOND;
1315 GST_DEBUG_OBJECT (mux, "determined the final duration to be %f", d);
1317 rewrite = gst_flv_mux_create_number_script_value ("duration", d);
1319 /* rewrite the filesize tag */
1320 d = gst_guint64_to_gdouble (mux->byte_count);
1322 GST_DEBUG_OBJECT (mux, "putting total filesize %f in the metadata", d);
1324 tmp = gst_flv_mux_create_number_script_value ("filesize", d);
1325 rewrite = gst_buffer_join (rewrite, tmp);
1328 /* no index, so push buffer and return */
1329 return gst_flv_mux_push (mux, rewrite);
1332 /* rewrite the index */
1333 mux->index = g_list_reverse (mux->index);
1334 index_len = g_list_length (mux->index);
1336 /* We write at most MAX_INDEX_ENTRIES elements */
1337 if (index_len > MAX_INDEX_ENTRIES) {
1338 index_skip = 1 + index_len / MAX_INDEX_ENTRIES;
1339 index_len = (index_len + index_skip - 1) / index_skip;
1344 GST_DEBUG_OBJECT (mux, "Index length is %d", index_len);
1345 /* see size calculation in gst_flv_mux_preallocate_index */
1346 allocate_size = 11 + 8 + 22 + 10 + index_len * 18;
1347 GST_DEBUG_OBJECT (mux, "Allocating %d bytes for index", allocate_size);
1348 index = gst_buffer_new_and_alloc (allocate_size);
1349 data = GST_BUFFER_DATA (index);
1351 GST_WRITE_UINT16_BE (data, 9); /* the 'keyframes' key */
1352 memcpy (data + 2, "keyframes", 9);
1353 GST_WRITE_UINT8 (data + 11, 8); /* nested ECMA array */
1354 GST_WRITE_UINT32_BE (data + 12, 2); /* two elements */
1355 GST_WRITE_UINT16_BE (data + 16, 5); /* first string key: 'times' */
1356 memcpy (data + 18, "times", 5);
1357 GST_WRITE_UINT8 (data + 23, 10); /* strict array */
1358 GST_WRITE_UINT32_BE (data + 24, index_len);
1361 /* the keyframes' times */
1362 for (i = 0, l = mux->index; l; l = l->next, i++) {
1363 GstFlvMuxIndexEntry *entry = l->data;
1365 if (i % index_skip != 0)
1367 GST_WRITE_UINT8 (data, 0); /* numeric (aka double) */
1368 GST_WRITE_DOUBLE_BE (data + 1, entry->time);
1372 GST_WRITE_UINT16_BE (data, 13); /* second string key: 'filepositions' */
1373 memcpy (data + 2, "filepositions", 13);
1374 GST_WRITE_UINT8 (data + 15, 10); /* strict array */
1375 GST_WRITE_UINT32_BE (data + 16, index_len);
1378 /* the keyframes' file positions */
1379 for (i = 0, l = mux->index; l; l = l->next, i++) {
1380 GstFlvMuxIndexEntry *entry = l->data;
1382 if (i % index_skip != 0)
1384 GST_WRITE_UINT8 (data, 0);
1385 GST_WRITE_DOUBLE_BE (data + 1, entry->position);
1389 GST_WRITE_UINT24_BE (data, 9); /* finish the ECMA array */
1391 /* If there is space left in the prefilled area, reinsert the filler.
1392 There is at least 18 bytes free, so it will always fit. */
1393 if (index_len < MAX_INDEX_ENTRIES) {
1396 guint32 remaining_filler_size;
1398 tmp = gst_buffer_new_and_alloc (14);
1399 data = GST_BUFFER_DATA (tmp);
1400 GST_WRITE_UINT16_BE (data, 9);
1401 memcpy (data + 2, "gstfiller", 9);
1402 GST_WRITE_UINT8 (data + 11, 2); /* string */
1404 /* There is 18 bytes per remaining index entry minus what is used for
1405 * the'gstfiller' key. The rest is already filled with spaces, so just need
1406 * to update length. */
1407 remaining_filler_size = (MAX_INDEX_ENTRIES - index_len) * 18 - 14;
1408 GST_DEBUG_OBJECT (mux, "Remaining filler size is %d bytes",
1409 remaining_filler_size);
1410 GST_WRITE_UINT16_BE (data + 12, remaining_filler_size);
1411 index = gst_buffer_join (index, tmp);
1414 rewrite = gst_buffer_join (rewrite, index);
1416 gst_buffer_set_caps (rewrite, GST_PAD_CAPS (mux->srcpad));
1417 return gst_flv_mux_push (mux, rewrite);
1420 static GstFlowReturn
1421 gst_flv_mux_handle_buffer (GstCollectPads2 * pads, GstCollectData2 * cdata,
1422 GstBuffer * buffer, gpointer user_data)
1424 GstFlvMux *mux = GST_FLV_MUX (user_data);
1426 GstClockTime best_time;
1429 if (mux->state == GST_FLV_MUX_STATE_HEADER) {
1430 if (mux->collect->data == NULL) {
1431 GST_ELEMENT_ERROR (mux, STREAM, MUX, (NULL),
1432 ("No input streams configured"));
1433 return GST_FLOW_ERROR;
1436 if (gst_pad_push_event (mux->srcpad,
1437 gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_BYTES, 0, -1, 0)))
1438 ret = gst_flv_mux_write_header (mux);
1440 ret = GST_FLOW_ERROR;
1442 if (ret != GST_FLOW_OK)
1444 mux->state = GST_FLV_MUX_STATE_DATA;
1447 if (mux->new_tags) {
1448 GstBuffer *buf = gst_flv_mux_create_metadata (mux, FALSE);
1450 gst_flv_mux_push (mux, buf);
1451 mux->new_tags = FALSE;
1454 best = (GstFlvPad *) cdata;
1457 best_time = GST_BUFFER_TIMESTAMP (buffer);
1459 best_time = GST_CLOCK_TIME_NONE;
1462 /* The FLV timestamp is an int32 field. For non-live streams error out if a
1463 bigger timestamp is seen, for live the timestamp will get wrapped in
1464 gst_flv_mux_buffer_to_tag */
1465 if (!mux->streamable && GST_CLOCK_TIME_IS_VALID (best_time)
1466 && best_time / GST_MSECOND > G_MAXINT32) {
1467 GST_WARNING_OBJECT (mux, "Timestamp larger than FLV supports - EOS");
1468 gst_buffer_unref (buffer);
1474 return gst_flv_mux_write_buffer (mux, best, buffer);
1476 gst_flv_mux_rewrite_header (mux);
1477 gst_pad_push_event (mux->srcpad, gst_event_new_eos ());
1478 return GST_FLOW_UNEXPECTED;
1483 gst_flv_mux_get_property (GObject * object,
1484 guint prop_id, GValue * value, GParamSpec * pspec)
1486 GstFlvMux *mux = GST_FLV_MUX (object);
1489 case PROP_STREAMABLE:
1490 g_value_set_boolean (value, mux->streamable);
1493 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1499 gst_flv_mux_set_property (GObject * object,
1500 guint prop_id, const GValue * value, GParamSpec * pspec)
1502 GstFlvMux *mux = GST_FLV_MUX (object);
1505 case PROP_STREAMABLE:
1506 mux->streamable = g_value_get_boolean (value);
1507 if (mux->streamable)
1508 gst_tag_setter_set_tag_merge_mode (GST_TAG_SETTER (mux),
1509 GST_TAG_MERGE_REPLACE);
1511 gst_tag_setter_set_tag_merge_mode (GST_TAG_SETTER (mux),
1512 GST_TAG_MERGE_KEEP);
1515 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
1520 static GstStateChangeReturn
1521 gst_flv_mux_change_state (GstElement * element, GstStateChange transition)
1523 GstStateChangeReturn ret;
1524 GstFlvMux *mux = GST_FLV_MUX (element);
1526 switch (transition) {
1527 case GST_STATE_CHANGE_NULL_TO_READY:
1529 case GST_STATE_CHANGE_READY_TO_PAUSED:
1530 gst_collect_pads2_start (mux->collect);
1532 case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
1534 case GST_STATE_CHANGE_PAUSED_TO_READY:
1535 gst_collect_pads2_stop (mux->collect);
1541 ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
1543 switch (transition) {
1544 case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
1546 case GST_STATE_CHANGE_PAUSED_TO_READY:
1547 gst_flv_mux_reset (GST_ELEMENT (mux));
1549 case GST_STATE_CHANGE_READY_TO_NULL: