mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-23 08:46:40 +00:00
Code Issues 1 Projects Releases Wiki Activity

basetsmux: extract m2ts-mode to mpegtsmux

Browse source
This commit is contained in:
Mathieu Duponchelle 2019-04-30 00:50:06 +02:00 committed by Mathieu Duponchelle
parent 649cc2d5e8
commit 44c701d113
4 changed files with 320 additions and 193 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

243
gst/mpegtsmux/basetsmux.c
View file

@ -108,7 +108,6 @@ enum
{
PROP_0,
PROP_PROG_MAP,
PROP_M2TS_MODE,
PROP_PAT_INTERVAL,
PROP_PMT_INTERVAL,
PROP_ALIGNMENT,
@ -117,7 +116,6 @@ enum
};
#define BASETSMUX_DEFAULT_ALIGNMENT -1
#define BASETSMUX_DEFAULT_M2TS FALSE
static GstStaticPadTemplate basetsmux_src_factory =
GST_STATIC_PAD_TEMPLATE ("src",
@ -142,8 +140,6 @@ static void release_buffer_cb (guint8 * data, void *user_data);
static GstFlowReturn basetsmux_collect_packet (BaseTsMux * mux,
GstBuffer * buf);
static GstFlowReturn basetsmux_push_packets (BaseTsMux * mux, gboolean force);
static gboolean new_packet_m2ts (BaseTsMux * mux, GstBuffer * buf,
gint64 new_pcr);
static void basetsmux_prepare_srcpad (BaseTsMux * mux);
GstFlowReturn basetsmux_clip_inc_running_time (GstCollectPads * pads,
@ -204,6 +200,25 @@ stream_data_free (StreamData * data)
#define parent_class basetsmux_parent_class
static void
basetsmux_default_allocate_packet (BaseTsMux * mux, GstBuffer ** buffer)
{
GstBuffer *buf;
buf = gst_buffer_new_and_alloc (mux->packet_size);
*buffer = buf;
}
static gboolean
basetsmux_default_output_packet (BaseTsMux * mux, GstBuffer * buffer,
gint64 new_pcr)
{
basetsmux_collect_packet (mux, buffer);
return TRUE;
}
static void
basetsmux_class_init (BaseTsMuxClass * klass)
{
@ -229,6 +244,8 @@ basetsmux_class_init (BaseTsMuxClass * klass)
gstelement_class->send_event = basetsmux_send_event;
klass->create_ts_mux = basetsmux_default_create_ts_mux;
klass->allocate_packet = basetsmux_default_allocate_packet;
klass->output_packet = basetsmux_default_output_packet;
#if 0
gstelement_class->set_index = GST_DEBUG_FUNCPTR (basetsmux_set_index);
@ -240,12 +257,6 @@ basetsmux_class_init (BaseTsMuxClass * klass)
"A GstStructure specifies the mapping from elementary streams to programs",
GST_TYPE_STRUCTURE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_M2TS_MODE,
g_param_spec_boolean ("m2ts-mode", "M2TS(192 bytes) Mode",
"Set to TRUE to output Blu-Ray disc format with 192 byte packets. "
"FALSE for standard TS format with 188 byte packets.",
BASETSMUX_DEFAULT_M2TS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PAT_INTERVAL,
g_param_spec_uint ("pat-interval", "PAT interval",
"Set the interval (in ticks of the 90kHz clock) for writing out the PAT table",
@ -300,17 +311,18 @@ basetsmux_init (BaseTsMux * mux)
gst_collect_pads_set_clip_function (mux->collect, (GstCollectPadsClipFunction)
GST_DEBUG_FUNCPTR (basetsmux_clip_inc_running_time), mux);
mux->adapter = gst_adapter_new ();
mux->out_adapter = gst_adapter_new ();
/* properties */
mux->m2ts_mode = BASETSMUX_DEFAULT_M2TS;
mux->pat_interval = TSMUX_DEFAULT_PAT_INTERVAL;
mux->pmt_interval = TSMUX_DEFAULT_PMT_INTERVAL;
mux->si_interval = TSMUX_DEFAULT_SI_INTERVAL;
mux->prog_map = NULL;
mux->alignment = BASETSMUX_DEFAULT_ALIGNMENT;
mux->bitrate = TSMUX_DEFAULT_BITRATE;
mux->packet_size = NORMAL_TS_PACKET_LENGTH;
mux->automatic_alignment = 0;
}
static void
@ -348,12 +360,10 @@ basetsmux_reset (BaseTsMux * mux, gboolean alloc)
{
GstBuffer *buf;
GSList *walk;
BaseTsMuxClass *klass = GST_BASE_TSMUX_GET_CLASS (mux);
mux->first = TRUE;
mux->last_flow_ret = GST_FLOW_OK;
mux->previous_pcr = -1;
mux->previous_offset = 0;
mux->pcr_rate_num = mux->pcr_rate_den = 1;
mux->last_ts = 0;
mux->is_delta = TRUE;
mux->is_header = FALSE;
@ -369,8 +379,6 @@ basetsmux_reset (BaseTsMux * mux, gboolean alloc)
mux->element_index = NULL;
}
#endif
if (mux->adapter)
gst_adapter_clear (mux->adapter);
if (mux->out_adapter)
gst_adapter_clear (mux->out_adapter);
@ -398,12 +406,13 @@ basetsmux_reset (BaseTsMux * mux, gboolean alloc)
}
if (alloc) {
BaseTsMuxClass *klass = GST_BASE_TSMUX_GET_CLASS (mux);
g_assert (klass->create_ts_mux);
mux->tsmux = klass->create_ts_mux (mux);
}
if (klass->reset)
klass->reset (mux);
}
static void
@ -413,10 +422,6 @@ basetsmux_dispose (GObject * object)
basetsmux_reset (mux, FALSE);
if (mux->adapter) {
g_object_unref (mux->adapter);
mux->adapter = NULL;
}
if (mux->out_adapter) {
g_object_unref (mux->out_adapter);
mux->out_adapter = NULL;
@ -453,10 +458,6 @@ gst_basetsmux_set_property (GObject * object, guint prop_id,
GSList *walk;
switch (prop_id) {
case PROP_M2TS_MODE:
/*set incase if the output stream need to be of 192 bytes */
mux->m2ts_mode = g_value_get_boolean (value);
break;
case PROP_PROG_MAP:
{
const GstStructure *s = gst_value_get_structure (value);
@ -510,9 +511,6 @@ gst_basetsmux_get_property (GObject * object, guint prop_id,
BaseTsMux *mux = GST_BASE_TSMUX (object);
switch (prop_id) {
case PROP_M2TS_MODE:
g_value_set_boolean (value, mux->m2ts_mode);
break;
case PROP_PROG_MAP:
gst_value_set_structure (value, mux->prog_map);
break;
@ -1358,10 +1356,12 @@ basetsmux_collected_buffer (GstCollectPads * pads, GstCollectData * data,
}
if (G_UNLIKELY (best == NULL)) {
BaseTsMuxClass *klass = GST_BASE_TSMUX_GET_CLASS (mux);
/* EOS */
GST_INFO_OBJECT (mux, "EOS");
/* drain some possibly cached data */
new_packet_m2ts (mux, NULL, -1);
if (klass->drain)
klass->drain (mux);
basetsmux_push_packets (mux, TRUE);
gst_pad_push_event (mux->srcpad, gst_event_new_eos ());
@ -1645,15 +1645,10 @@ basetsmux_push_packets (BaseTsMux * mux, gboolean force)
gint align = mux->alignment;
gint av, packet_size;
if (mux->m2ts_mode) {
packet_size = M2TS_PACKET_LENGTH;
if (align < 0)
align = 32;
} else {
packet_size = NORMAL_TS_PACKET_LENGTH;
if (align < 0)
align = 0;
}
packet_size = mux->packet_size;
if (align < 0)
align = mux->automatic_alignment;
av = gst_adapter_available (mux->out_adapter);
GST_LOG_OBJECT (mux, "align %d, av %d", align, av);
@ -1753,174 +1748,39 @@ basetsmux_collect_packet (BaseTsMux * mux, GstBuffer * buf)
return GST_FLOW_OK;
}
static gboolean
new_packet_m2ts (BaseTsMux * mux, GstBuffer * buf, gint64 new_pcr)
{
GstBuffer *out_buf;
int chunk_bytes;
GstMapInfo map;
GST_LOG_OBJECT (mux, "Have buffer %p with new_pcr=%" G_GINT64_FORMAT,
buf, new_pcr);
chunk_bytes = gst_adapter_available (mux->adapter);
if (G_LIKELY (buf)) {
if (new_pcr < 0) {
/* If there is no pcr in current ts packet then just add the packet
to the adapter for later output when we see a PCR */
GST_LOG_OBJECT (mux, "Accumulating non-PCR packet");
gst_adapter_push (mux->adapter, buf);
goto exit;
}
/* no first interpolation point yet, then this is the one,
* otherwise it is the second interpolation point */
if (mux->previous_pcr < 0 && chunk_bytes) {
mux->previous_pcr = new_pcr;
mux->previous_offset = chunk_bytes;
GST_LOG_OBJECT (mux, "Accumulating non-PCR packet");
gst_adapter_push (mux->adapter, buf);
goto exit;
}
} else {
g_assert (new_pcr == -1);
}
/* interpolate if needed, and 2 points available */
if (chunk_bytes && (new_pcr != mux->previous_pcr)) {
gint64 offset = 0;
GST_LOG_OBJECT (mux, "Processing pending packets; "
"previous pcr %" G_GINT64_FORMAT ", previous offset %d, "
"current pcr %" G_GINT64_FORMAT ", current offset %d",
mux->previous_pcr, (gint) mux->previous_offset,
new_pcr, (gint) chunk_bytes);
g_assert (chunk_bytes > mux->previous_offset);
/* if draining, use previous rate */
if (G_LIKELY (new_pcr > 0)) {
mux->pcr_rate_num = new_pcr - mux->previous_pcr;
mux->pcr_rate_den = chunk_bytes - mux->previous_offset;
}
while (offset < chunk_bytes) {
guint64 cur_pcr, ts;
/* Loop, pulling packets of the adapter, updating their 4 byte
* timestamp header and pushing */
/* interpolate PCR */
if (G_LIKELY (offset >= mux->previous_offset))
cur_pcr = mux->previous_pcr +
gst_util_uint64_scale (offset - mux->previous_offset,
mux->pcr_rate_num, mux->pcr_rate_den);
else
cur_pcr = mux->previous_pcr -
gst_util_uint64_scale (mux->previous_offset - offset,
mux->pcr_rate_num, mux->pcr_rate_den);
/* FIXME: what about DTS here? */
ts = gst_adapter_prev_pts (mux->adapter, NULL);
out_buf = gst_adapter_take_buffer (mux->adapter, M2TS_PACKET_LENGTH);
g_assert (out_buf);
offset += M2TS_PACKET_LENGTH;
GST_BUFFER_PTS (out_buf) = ts;
gst_buffer_map (out_buf, &map, GST_MAP_WRITE);
/* The header is the bottom 30 bits of the PCR, apparently not
* encoded into base + ext as in the packets themselves */
GST_WRITE_UINT32_BE (map.data, cur_pcr & 0x3FFFFFFF);
gst_buffer_unmap (out_buf, &map);
GST_LOG_OBJECT (mux, "Outputting a packet of length %d PCR %"
G_GUINT64_FORMAT, M2TS_PACKET_LENGTH, cur_pcr);
basetsmux_collect_packet (mux, out_buf);
}
}
if (G_UNLIKELY (!buf))
goto exit;
gst_buffer_map (buf, &map, GST_MAP_WRITE);
/* Finally, output the passed in packet */
/* Only write the bottom 30 bits of the PCR */
GST_WRITE_UINT32_BE (map.data, new_pcr & 0x3FFFFFFF);
gst_buffer_unmap (buf, &map);
GST_LOG_OBJECT (mux, "Outputting a packet of length %d PCR %"
G_GUINT64_FORMAT, M2TS_PACKET_LENGTH, new_pcr);
basetsmux_collect_packet (mux, buf);
if (new_pcr != mux->previous_pcr) {
mux->previous_pcr = new_pcr;
mux->previous_offset = -M2TS_PACKET_LENGTH;
}
exit:
return TRUE;
}
/* Called when the TsMux has prepared a packet for output. Return FALSE
* on error */
static gboolean
new_packet_cb (GstBuffer * buf, void *user_data, gint64 new_pcr)
{
BaseTsMux *mux = (BaseTsMux *) user_data;
gint offset = 0;
BaseTsMuxClass *klass = GST_BASE_TSMUX_GET_CLASS (mux);
GstMapInfo map;
#if 0
GST_LOG_OBJECT (mux, "handling packet %d", mux->spn_count);
mux->spn_count++;
#endif
if (mux->m2ts_mode) {
offset = 4;
gst_buffer_set_size (buf, NORMAL_TS_PACKET_LENGTH + offset);
}
g_assert (klass->output_packet);
gst_buffer_map (buf, &map, GST_MAP_READWRITE);
if (offset) {
/* there should be a better way to do this */
memmove (map.data + offset, map.data, map.size - offset);
}
GST_BUFFER_PTS (buf) = mux->last_ts;
/* do common init (flags and streamheaders) */
new_packet_common_init (mux, buf, map.data + offset, map.size);
new_packet_common_init (mux, buf, map.data, map.size);
gst_buffer_unmap (buf, &map);
/* all is meant for downstream, including any prefix */
if (offset)
return new_packet_m2ts (mux, buf, new_pcr);
else
basetsmux_collect_packet (mux, buf);
return TRUE;
return klass->output_packet (mux, buf, new_pcr);
}
/* called when TsMux needs new packet to write into */
static void
alloc_packet_cb (GstBuffer ** _buf, void *user_data)
alloc_packet_cb (GstBuffer ** buf, void *user_data)
{
BaseTsMux *mux = (BaseTsMux *) user_data;
GstBuffer *buf;
gint offset = 0;
BaseTsMuxClass *klass = GST_BASE_TSMUX_GET_CLASS (mux);
if (mux->m2ts_mode == TRUE)
offset = 4;
g_assert (klass->allocate_packet);
buf = gst_buffer_new_and_alloc (NORMAL_TS_PACKET_LENGTH + offset);
gst_buffer_set_size (buf, NORMAL_TS_PACKET_LENGTH);
*_buf = buf;
klass->allocate_packet (mux, buf);
}
static void
@ -1962,8 +1822,7 @@ basetsmux_prepare_srcpad (BaseTsMux * mux)
gchar s_id[32];
GstCaps *caps = gst_caps_new_simple ("video/mpegts",
"systemstream", G_TYPE_BOOLEAN, TRUE,
"packetsize", G_TYPE_INT,
(mux->m2ts_mode ? M2TS_PACKET_LENGTH : NORMAL_TS_PACKET_LENGTH),
"packetsize", G_TYPE_INT, mux->packet_size,
NULL);
/* stream-start (FIXME: create id based on input ids) */
@ -2052,3 +1911,15 @@ basetsmux_default_create_ts_mux (BaseTsMux * mux)
return tsmux;
}
void
gst_base_tsmux_set_packet_size (BaseTsMux * mux, gsize size)
{
mux->packet_size = size;
}
void
gst_base_tsmux_set_automatic_alignment (BaseTsMux * mux, gsize alignment)
{
mux->automatic_alignment = alignment;
}

16
gst/mpegtsmux/basetsmux.h
View file

@ -134,7 +134,6 @@ struct BaseTsMux {
GHashTable *programs;
/* properties */
gboolean m2ts_mode;
GstStructure *prog_map;
guint pat_interval;
guint pmt_interval;
@ -155,12 +154,8 @@ struct BaseTsMux {
gboolean is_header;
GstClockTime last_ts;
/* m2ts specific */
gint64 previous_pcr;
gint64 previous_offset;
gint64 pcr_rate_num;
gint64 pcr_rate_den;
GstAdapter *adapter;
gsize packet_size;
gsize automatic_alignment;
/* output buffer aggregation */
GstAdapter *out_adapter;
@ -183,8 +178,15 @@ struct BaseTsMuxClass {
TsMux * (*create_ts_mux) (BaseTsMux *mux);
guint (*handle_media_type) (BaseTsMux *mux, const gchar *media_type, BaseTsPadData * ts_data);
void (*allocate_packet) (BaseTsMux *mux, GstBuffer **buffer);
gboolean (*output_packet) (BaseTsMux *mux, GstBuffer *buffer, gint64 new_pcr);
void (*reset) (BaseTsMux *mux);
gboolean (*drain) (BaseTsMux *mux);
};
void gst_base_tsmux_set_packet_size (BaseTsMux *mux, gsize size);
void gst_base_tsmux_set_automatic_alignment (BaseTsMux *mux, gsize alignment);
struct BaseTsPadData {
/* parent */
GstCollectData collect;

244
gst/mpegtsmux/mpegtsmux.c
View file

@ -84,6 +84,14 @@
#include "mpegtsmux.h"
#define MPEGTSMUX_DEFAULT_M2TS FALSE
enum
{
PROP_0,
PROP_M2TS_MODE,
};
static GstStaticPadTemplate mpegtsmux_sink_factory =
GST_STATIC_PAD_TEMPLATE ("sink_%d",
GST_PAD_SINK,
@ -135,14 +143,242 @@ GST_DEBUG_CATEGORY (mpegtsmux_debug);
G_DEFINE_TYPE (MpegTsMux, mpegtsmux, GST_TYPE_BASE_TSMUX);
#define parent_class mpegtsmux_parent_class
static void
gst_mpegtsmux_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
MpegTsMux *mux = GST_MPEG_TSMUX (object);
switch (prop_id) {
case PROP_M2TS_MODE:
/* set incase if the output stream need to be of 192 bytes */
mux->m2ts_mode = g_value_get_boolean (value);
gst_base_tsmux_set_packet_size (GST_BASE_TSMUX (mux),
mux->m2ts_mode ? M2TS_PACKET_LENGTH : NORMAL_TS_PACKET_LENGTH);
gst_base_tsmux_set_automatic_alignment (GST_BASE_TSMUX (mux),
mux->m2ts_mode ? 32 : 0);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_mpegtsmux_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
MpegTsMux *mux = GST_MPEG_TSMUX (object);
switch (prop_id) {
case PROP_M2TS_MODE:
g_value_set_boolean (value, mux->m2ts_mode);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_mpegtsmux_allocate_packet (BaseTsMux * mux, GstBuffer ** buffer)
{
((BaseTsMuxClass *) parent_class)->allocate_packet (mux, buffer);
gst_buffer_set_size (*buffer, NORMAL_TS_PACKET_LENGTH);
}
static gboolean
new_packet_m2ts (MpegTsMux * mux, GstBuffer * buf, gint64 new_pcr)
{
GstBuffer *out_buf;
int chunk_bytes;
GstMapInfo map;
GST_LOG_OBJECT (mux, "Have buffer %p with new_pcr=%" G_GINT64_FORMAT,
buf, new_pcr);
chunk_bytes = gst_adapter_available (mux->adapter);
if (G_LIKELY (buf)) {
if (new_pcr < 0) {
/* If there is no pcr in current ts packet then just add the packet
to the adapter for later output when we see a PCR */
GST_LOG_OBJECT (mux, "Accumulating non-PCR packet");
gst_adapter_push (mux->adapter, buf);
goto exit;
}
/* no first interpolation point yet, then this is the one,
* otherwise it is the second interpolation point */
if (mux->previous_pcr < 0 && chunk_bytes) {
mux->previous_pcr = new_pcr;
mux->previous_offset = chunk_bytes;
GST_LOG_OBJECT (mux, "Accumulating non-PCR packet");
gst_adapter_push (mux->adapter, buf);
goto exit;
}
} else {
g_assert (new_pcr == -1);
}
/* interpolate if needed, and 2 points available */
if (chunk_bytes && (new_pcr != mux->previous_pcr)) {
gint64 offset = 0;
GST_LOG_OBJECT (mux, "Processing pending packets; "
"previous pcr %" G_GINT64_FORMAT ", previous offset %d, "
"current pcr %" G_GINT64_FORMAT ", current offset %d",
mux->previous_pcr, (gint) mux->previous_offset,
new_pcr, (gint) chunk_bytes);
g_assert (chunk_bytes > mux->previous_offset);
/* if draining, use previous rate */
if (G_LIKELY (new_pcr > 0)) {
mux->pcr_rate_num = new_pcr - mux->previous_pcr;
mux->pcr_rate_den = chunk_bytes - mux->previous_offset;
}
while (offset < chunk_bytes) {
guint64 cur_pcr, ts;
/* Loop, pulling packets of the adapter, updating their 4 byte
* timestamp header and pushing */
/* interpolate PCR */
if (G_LIKELY (offset >= mux->previous_offset))
cur_pcr = mux->previous_pcr +
gst_util_uint64_scale (offset - mux->previous_offset,
mux->pcr_rate_num, mux->pcr_rate_den);
else
cur_pcr = mux->previous_pcr -
gst_util_uint64_scale (mux->previous_offset - offset,
mux->pcr_rate_num, mux->pcr_rate_den);
/* FIXME: what about DTS here? */
ts = gst_adapter_prev_pts (mux->adapter, NULL);
out_buf = gst_adapter_take_buffer (mux->adapter, M2TS_PACKET_LENGTH);
g_assert (out_buf);
offset += M2TS_PACKET_LENGTH;
GST_BUFFER_PTS (out_buf) = ts;
gst_buffer_map (out_buf, &map, GST_MAP_WRITE);
/* The header is the bottom 30 bits of the PCR, apparently not
* encoded into base + ext as in the packets themselves */
GST_WRITE_UINT32_BE (map.data, cur_pcr & 0x3FFFFFFF);
gst_buffer_unmap (out_buf, &map);
GST_LOG_OBJECT (mux, "Outputting a packet of length %d PCR %"
G_GUINT64_FORMAT, M2TS_PACKET_LENGTH, cur_pcr);
((BaseTsMuxClass *) parent_class)->output_packet (GST_BASE_TSMUX (mux),
out_buf, -1);
}
}
if (G_UNLIKELY (!buf))
goto exit;
gst_buffer_map (buf, &map, GST_MAP_WRITE);
/* Finally, output the passed in packet */
/* Only write the bottom 30 bits of the PCR */
GST_WRITE_UINT32_BE (map.data, new_pcr & 0x3FFFFFFF);
gst_buffer_unmap (buf, &map);
GST_LOG_OBJECT (mux, "Outputting a packet of length %d PCR %"
G_GUINT64_FORMAT, M2TS_PACKET_LENGTH, new_pcr);
((BaseTsMuxClass *) parent_class)->output_packet (GST_BASE_TSMUX (mux), buf,
-1);
if (new_pcr != mux->previous_pcr) {
mux->previous_pcr = new_pcr;
mux->previous_offset = -M2TS_PACKET_LENGTH;
}
exit:
return TRUE;
}
static gboolean
gst_mpegtsmux_output_packet (BaseTsMux * base_tsmux, GstBuffer * buffer,
gint64 new_pcr)
{
MpegTsMux *mux = (MpegTsMux *) base_tsmux;
GstMapInfo map;
if (!mux->m2ts_mode)
return ((BaseTsMuxClass *) parent_class)->output_packet (base_tsmux, buffer,
new_pcr);
gst_buffer_set_size (buffer, M2TS_PACKET_LENGTH);
gst_buffer_map (buffer, &map, GST_MAP_READWRITE);
/* there should be a better way to do this */
memmove (map.data + 4, map.data, map.size - 4);
gst_buffer_unmap (buffer, &map);
return new_packet_m2ts (mux, buffer, new_pcr);
}
static void
gst_mpegtsmux_reset (BaseTsMux * base_tsmux)
{
MpegTsMux *mux = (MpegTsMux *) base_tsmux;
if (mux->adapter)
gst_adapter_clear (mux->adapter);
mux->previous_pcr = -1;
mux->previous_offset = 0;
mux->pcr_rate_num = mux->pcr_rate_den = 1;
}
static void
gst_mpegtsmux_dispose (GObject * object)
{
MpegTsMux *mux = (MpegTsMux *) object;
if (mux->adapter) {
g_object_unref (mux->adapter);
mux->adapter = NULL;
}
GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object));
}
static gboolean
gst_mpegtsmux_drain (BaseTsMux * mux)
{
return new_packet_m2ts ((MpegTsMux *) mux, NULL, -1);
}
static void
mpegtsmux_class_init (MpegTsMuxClass * klass)
{
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
BaseTsMuxClass *base_tsmux_class = (BaseTsMuxClass *) klass;
GST_DEBUG_CATEGORY_INIT (mpegtsmux_debug, "mpegtsmux", 0,
"MPEG Transport Stream muxer");
gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_mpegtsmux_set_property);
gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_mpegtsmux_get_property);
gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_mpegtsmux_dispose);
base_tsmux_class->allocate_packet =
GST_DEBUG_FUNCPTR (gst_mpegtsmux_allocate_packet);
base_tsmux_class->output_packet =
GST_DEBUG_FUNCPTR (gst_mpegtsmux_output_packet);
base_tsmux_class->reset = GST_DEBUG_FUNCPTR (gst_mpegtsmux_reset);
base_tsmux_class->drain = GST_DEBUG_FUNCPTR (gst_mpegtsmux_drain);
gst_element_class_set_static_metadata (gstelement_class,
"MPEG Transport Stream Muxer", "Codec/Muxer",
"Multiplexes media streams into an MPEG Transport Stream",
@ -153,9 +389,17 @@ mpegtsmux_class_init (MpegTsMuxClass * klass)
gst_element_class_add_static_pad_template (gstelement_class,
&mpegtsmux_src_factory);
g_object_class_install_property (gobject_class, PROP_M2TS_MODE,
g_param_spec_boolean ("m2ts-mode", "M2TS(192 bytes) Mode",
"Set to TRUE to output Blu-Ray disc format with 192 byte packets. "
"FALSE for standard TS format with 188 byte packets.",
MPEGTSMUX_DEFAULT_M2TS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
static void
mpegtsmux_init (MpegTsMux * mux)
{
mux->m2ts_mode = MPEGTSMUX_DEFAULT_M2TS;
mux->adapter = gst_adapter_new ();
}

10
gst/mpegtsmux/mpegtsmux.h
View file

@ -102,6 +102,16 @@ typedef struct MpegTsPadData MpegTsPadData;
struct MpegTsMux {
BaseTsMux parent;
/* Properties */
gboolean m2ts_mode;
/* m2ts specific */
gint64 previous_pcr;
gint64 previous_offset;
gint64 pcr_rate_num;
gint64 pcr_rate_den;
GstAdapter *adapter;
};
struct MpegTsMuxClass {