mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-10-02 00:32:43 +00:00
subenc: port to 1.0
This commit is contained in:
Tim-Philipp Müller
Tim-Philipp Müller
parent
5888c60570
commit
2c02e25640
3 changed files with 177 additions and 124 deletions
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@ -318,7 +318,7 @@ GST_PLUGINS_NONPORTED=" androidmedia aiff \
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kate librfb \
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mpegpsmux mve mxf mythtv nsf nuvdemux \
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patchdetect real \
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sdi subenc stereo tta videofilters \
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sdi stereo tta videofilters \
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videomeasure videosignal vmnc \
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decklink fbdev linsys vcd \
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apexsink cdaudio cog dc1394 dirac directfb \
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@ -20,10 +20,10 @@
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "string.h"
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#include <string.h>
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#include "gstsrtenc.h"
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#include <gst/controller/gstcontroller.h>
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GST_DEBUG_CATEGORY_STATIC (srtenc_debug);
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#define GST_CAT_DEFAULT srtenc_debug
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@ -43,21 +43,23 @@ static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
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static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("text/plain; text/x-pango-markup"));
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GST_STATIC_CAPS ("text/x-raw, format = { pango-markup, utf8 }"));
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static GstFlowReturn gst_srt_enc_chain (GstPad * pad, GstBuffer * buf);
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static gchar *gst_srt_enc_timeconvertion (GstSrtEnc * srtenc, GstBuffer * buf);
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static gchar *gst_srt_enc_timestamp_to_string (GstClockTime timestamp);
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static GstFlowReturn gst_srt_enc_chain (GstPad * pad, GstObject * parent,
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GstBuffer * buf);
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static gboolean gst_srt_enc_event (GstPad * pad, GstObject * parent,
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GstEvent * event);
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static void gst_srt_enc_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_srt_enc_reset (GstSrtEnc * srtenc);
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static void gst_srt_enc_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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GST_BOILERPLATE (GstSrtEnc, gst_srt_enc, GstElement, GST_TYPE_ELEMENT);
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#define parent_class gst_srt_enc_parent_class
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G_DEFINE_TYPE (GstSrtEnc, gst_srt_enc, GST_TYPE_ELEMENT);
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static gchar *
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gst_srt_enc_timestamp_to_string (GstClockTime timestamp)
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static void
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gst_srt_enc_append_timestamp_to_string (GstClockTime timestamp, GString * str)
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{
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guint h, m, s, ms;
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@ -72,65 +74,84 @@ gst_srt_enc_timestamp_to_string (GstClockTime timestamp)
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timestamp -= s * GST_SECOND;
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ms = timestamp / GST_MSECOND;
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return g_strdup_printf ("%.2d:%.2d:%.2d,%.3d", h, m, s, ms);
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}
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static gchar *
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gst_srt_enc_timeconvertion (GstSrtEnc * srtenc, GstBuffer * buf)
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{
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gchar *start_time =
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gst_srt_enc_timestamp_to_string (GST_BUFFER_TIMESTAMP (buf) +
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srtenc->timestamp);
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gchar *stop_time =
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gst_srt_enc_timestamp_to_string (GST_BUFFER_TIMESTAMP (buf) +
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srtenc->timestamp + GST_BUFFER_DURATION (buf) + srtenc->duration);
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gchar *string = g_strdup_printf ("%s --> %s\n", start_time, stop_time);
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g_free (start_time);
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g_free (stop_time);
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return string;
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g_string_append_printf (str, "%.2d:%.2d:%.2d,%.3d", h, m, s, ms);
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}
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static GstFlowReturn
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gst_srt_enc_chain (GstPad * pad, GstBuffer * buf)
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gst_srt_enc_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
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{
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GstSrtEnc *srtenc;
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GstSrtEnc *srtenc = GST_SRT_ENC (parent);
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GstClockTime ts, dur = GST_SECOND;
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GstBuffer *new_buffer;
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gchar *timing;
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gchar *string;
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GstMapInfo map_info;
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GString *s;
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gsize buf_size;
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srtenc = GST_SRT_ENC (gst_pad_get_parent_element (pad));
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gst_object_sync_values (GST_OBJECT (srtenc), GST_BUFFER_TIMESTAMP (buf));
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timing = gst_srt_enc_timeconvertion (srtenc, buf);
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string = g_strdup_printf ("%d\n%s", srtenc->counter++, timing);
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g_free (timing);
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new_buffer =
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gst_buffer_new_and_alloc (strlen (string) + GST_BUFFER_SIZE (buf) + 2);
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memcpy (GST_BUFFER_DATA (new_buffer), string, strlen (string));
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memcpy (GST_BUFFER_DATA (new_buffer) + strlen (string), GST_BUFFER_DATA (buf),
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GST_BUFFER_SIZE (buf));
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memcpy (GST_BUFFER_DATA (new_buffer) + GST_BUFFER_SIZE (new_buffer) - 2,
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"\n\n", 2);
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g_free (string);
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gst_object_sync_values (GST_OBJECT (srtenc), GST_BUFFER_PTS (buf));
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ts = GST_BUFFER_PTS (buf) + srtenc->timestamp;
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if (GST_BUFFER_DURATION_IS_VALID (buf))
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dur = GST_BUFFER_DURATION (buf) + srtenc->duration;
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else if (srtenc->duration > 0)
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dur = srtenc->duration;
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else
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dur = GST_SECOND;
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buf_size = gst_buffer_get_size (buf);
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s = g_string_sized_new (10 + 50 + buf_size + 2 + 1);
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/* stanza count */
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g_string_append_printf (s, "%d\n", srtenc->counter++);
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/* start_time --> end_time */
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gst_srt_enc_append_timestamp_to_string (ts, s);
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g_string_append_printf (s, " --> ");
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gst_srt_enc_append_timestamp_to_string (ts + dur, s);
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g_string_append_c (s, '\n');
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/* text */
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if (gst_buffer_map (buf, &map_info, GST_MAP_READ)) {
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g_string_append_len (s, (const gchar *) map_info.data, map_info.size);
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gst_buffer_unmap (buf, &map_info);
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}
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g_string_append (s, "\n\n");
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buf_size = s->len;
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new_buffer = gst_buffer_new_wrapped (g_string_free (s, FALSE), buf_size);
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GST_BUFFER_TIMESTAMP (new_buffer) = GST_BUFFER_TIMESTAMP (buf);
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GST_BUFFER_DURATION (new_buffer) = GST_BUFFER_DURATION (buf);
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gst_buffer_unref (buf);
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return gst_pad_push (srtenc->srcpad, new_buffer);
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}
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static void
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gst_srt_enc_base_init (gpointer klass)
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static gboolean
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gst_srt_enc_event (GstPad * pad, GstObject * parent, GstEvent * event)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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GstSrtEnc *srtenc = GST_SRT_ENC (parent);
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gboolean ret;
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&sink_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&src_template));
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_CAPS:
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{
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GstCaps *caps;
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gst_element_class_set_static_metadata (element_class,
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"Srt encoder", "Codec/Encoder/Subtitle",
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"Srt subtitle encoder", "Thijs Vermeir <thijsvermeir@gmail.com>");
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caps = gst_static_pad_template_get_caps (&src_template);
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gst_pad_set_caps (srtenc->srcpad, caps);
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gst_caps_unref (caps);
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gst_event_unref (event);
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ret = TRUE;
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break;
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}
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default:
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ret = gst_pad_event_default (pad, parent, event);
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break;
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}
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return ret;
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}
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static void
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@ -225,18 +246,31 @@ gst_srt_enc_class_init (GstSrtEncClass * klass)
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0,
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G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&sink_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&src_template));
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gst_element_class_set_static_metadata (element_class,
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"Srt encoder", "Codec/Encoder/Subtitle",
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"Srt subtitle encoder", "Thijs Vermeir <thijsvermeir@gmail.com>");
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GST_DEBUG_CATEGORY_INIT (srtenc_debug, "srtenc", 0,
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"SubRip subtitle encoder");
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}
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static void
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gst_srt_enc_init (GstSrtEnc * srtenc, GstSrtEncClass * klass)
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gst_srt_enc_init (GstSrtEnc * srtenc)
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{
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gst_srt_enc_reset (srtenc);
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srtenc->srcpad = gst_pad_new_from_static_template (&src_template, "src");
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gst_element_add_pad (GST_ELEMENT (srtenc), srtenc->srcpad);
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srtenc->sinkpad = gst_pad_new_from_static_template (&sink_template, "sink");
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gst_pad_set_chain_function (srtenc->sinkpad,
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GST_DEBUG_FUNCPTR (gst_srt_enc_chain));
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gst_pad_set_event_function (srtenc->sinkpad,
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GST_DEBUG_FUNCPTR (gst_srt_enc_event));
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gst_element_add_pad (GST_ELEMENT (srtenc), srtenc->sinkpad);
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gst_pad_set_chain_function (srtenc->sinkpad, gst_srt_enc_chain);
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}
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@ -21,10 +21,10 @@
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "string.h"
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#include <string.h>
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#include "gstwebvttenc.h"
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#include <gst/controller/gstcontroller.h>
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GST_DEBUG_CATEGORY_STATIC (webvttenc_debug);
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#define GST_CAT_DEFAULT webvttenc_debug
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@ -39,27 +39,29 @@ enum
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static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("text/webvtt"));
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GST_STATIC_CAPS ("text/vtt"));
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static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("text/plain; text/x-pango-markup"));
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GST_STATIC_CAPS ("text/x-raw, format = { pango-markup, utf8 }"));
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static GstFlowReturn gst_webvtt_enc_chain (GstPad * pad, GstBuffer * buf);
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static gchar *gst_webvtt_enc_timeconvertion (GstWebvttEnc * webvttenc,
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static GstFlowReturn gst_webvtt_enc_chain (GstPad * pad, GstObject * parent,
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GstBuffer * buf);
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static gchar *gst_webvtt_enc_timestamp_to_string (GstClockTime timestamp);
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static void gst_webvtt_enc_append_timestamp_to_string (GstClockTime timestamp,
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GString * str);
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static void gst_webvtt_enc_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void gst_webvtt_enc_reset (GstWebvttEnc * webvttenc);
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static void gst_webvtt_enc_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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GST_BOILERPLATE (GstWebvttEnc, gst_webvtt_enc, GstElement, GST_TYPE_ELEMENT);
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#define parent_class gst_webvtt_enc_parent_class
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G_DEFINE_TYPE (GstWebvttEnc, gst_webvtt_enc, GST_TYPE_ELEMENT);
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static gchar *
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gst_webvtt_enc_timestamp_to_string (GstClockTime timestamp)
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static void
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gst_webvtt_enc_append_timestamp_to_string (GstClockTime timestamp,
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GString * str)
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{
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guint h, m, s, ms;
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@ -74,97 +76,102 @@ gst_webvtt_enc_timestamp_to_string (GstClockTime timestamp)
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timestamp -= s * GST_SECOND;
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ms = timestamp / GST_MSECOND;
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return g_strdup_printf ("%02d:%02d:%02d.%03d", h, m, s, ms);
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}
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static gchar *
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gst_webvtt_enc_timeconvertion (GstWebvttEnc * webvttenc, GstBuffer * buf)
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{
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gchar *start_time;
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gchar *stop_time;
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gchar *string;
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start_time = gst_webvtt_enc_timestamp_to_string (GST_BUFFER_TIMESTAMP (buf) +
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webvttenc->timestamp);
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if (GST_CLOCK_TIME_IS_VALID (GST_BUFFER_DURATION (buf))) {
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stop_time = gst_webvtt_enc_timestamp_to_string (GST_BUFFER_TIMESTAMP (buf) +
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webvttenc->timestamp + GST_BUFFER_DURATION (buf) + webvttenc->duration);
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} else {
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stop_time = gst_webvtt_enc_timestamp_to_string (GST_BUFFER_TIMESTAMP (buf) +
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webvttenc->timestamp + webvttenc->duration);
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}
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string = g_strdup_printf ("%s --> %s\n", start_time, stop_time);
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g_free (start_time);
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g_free (stop_time);
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return string;
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g_string_append_printf (str, "%02d:%02d:%02d.%03d", h, m, s, ms);
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}
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static GstFlowReturn
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gst_webvtt_enc_chain (GstPad * pad, GstBuffer * buf)
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gst_webvtt_enc_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
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{
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GstWebvttEnc *webvttenc;
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GstWebvttEnc *webvttenc = GST_WEBVTT_ENC (parent);
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GstClockTime ts, dur = GST_SECOND;
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GstBuffer *new_buffer;
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gchar *timing;
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GstMapInfo map_info;
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GstFlowReturn ret;
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webvttenc = GST_WEBVTT_ENC (gst_pad_get_parent_element (pad));
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GString *s;
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gsize buf_size;
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if (!webvttenc->pushed_header) {
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const char *header = "WEBVTT\n\n";
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new_buffer = gst_buffer_new_and_alloc (strlen (header));
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memcpy (GST_BUFFER_DATA (new_buffer), header, strlen (header));
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new_buffer = gst_buffer_new_wrapped (g_strdup (header), strlen (header));
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GST_BUFFER_TIMESTAMP (new_buffer) = GST_CLOCK_TIME_NONE;
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GST_BUFFER_PTS (new_buffer) = GST_CLOCK_TIME_NONE;
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GST_BUFFER_DURATION (new_buffer) = GST_CLOCK_TIME_NONE;
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ret = gst_pad_push (webvttenc->srcpad, new_buffer);
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if (ret != GST_FLOW_OK) {
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if (ret != GST_FLOW_OK)
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goto out;
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}
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webvttenc->pushed_header = TRUE;
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}
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gst_object_sync_values (GST_OBJECT (webvttenc), GST_BUFFER_TIMESTAMP (buf));
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gst_object_sync_values (GST_OBJECT (webvttenc), GST_BUFFER_PTS (buf));
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timing = gst_webvtt_enc_timeconvertion (webvttenc, buf);
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new_buffer =
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gst_buffer_new_and_alloc (strlen (timing) + GST_BUFFER_SIZE (buf) + 1);
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memcpy (GST_BUFFER_DATA (new_buffer), timing, strlen (timing));
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memcpy (GST_BUFFER_DATA (new_buffer) + strlen (timing), GST_BUFFER_DATA (buf),
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GST_BUFFER_SIZE (buf));
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memcpy (GST_BUFFER_DATA (new_buffer) + GST_BUFFER_SIZE (new_buffer) - 1,
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"\n", 1);
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g_free (timing);
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ts = GST_BUFFER_PTS (buf) + webvttenc->timestamp;
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if (GST_BUFFER_DURATION_IS_VALID (buf))
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dur = GST_BUFFER_DURATION (buf) + webvttenc->duration;
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else if (webvttenc->duration > 0)
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dur = webvttenc->duration;
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else
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dur = GST_SECOND;
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buf_size = gst_buffer_get_size (buf);
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s = g_string_sized_new (50 + buf_size + 1 + 1);
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/* start_time --> end_time */
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gst_webvtt_enc_append_timestamp_to_string (ts, s);
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g_string_append_printf (s, " --> ");
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gst_webvtt_enc_append_timestamp_to_string (ts + dur, s);
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g_string_append_c (s, '\n');
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/* text */
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if (gst_buffer_map (buf, &map_info, GST_MAP_READ)) {
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g_string_append_len (s, (const gchar *) map_info.data, map_info.size);
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gst_buffer_unmap (buf, &map_info);
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}
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g_string_append_c (s, '\n');
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buf_size = s->len;
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new_buffer = gst_buffer_new_wrapped (g_string_free (s, FALSE), buf_size);
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GST_BUFFER_TIMESTAMP (new_buffer) = GST_BUFFER_TIMESTAMP (buf);
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GST_BUFFER_DURATION (new_buffer) = GST_BUFFER_DURATION (buf);
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ret = gst_pad_push (webvttenc->srcpad, new_buffer);
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out:
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|
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gst_buffer_unref (buf);
|
||||
gst_object_unref (webvttenc);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_webvtt_enc_base_init (gpointer klass)
|
||||
static gboolean
|
||||
gst_webvtt_enc_event (GstPad * pad, GstObject * parent, GstEvent * event)
|
||||
{
|
||||
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
|
||||
GstWebvttEnc *webvttenc = GST_WEBVTT_ENC (parent);
|
||||
gboolean ret;
|
||||
|
||||
gst_element_class_add_pad_template (element_class,
|
||||
gst_static_pad_template_get (&sink_template));
|
||||
gst_element_class_add_pad_template (element_class,
|
||||
gst_static_pad_template_get (&src_template));
|
||||
switch (GST_EVENT_TYPE (event)) {
|
||||
case GST_EVENT_CAPS:
|
||||
{
|
||||
GstCaps *caps;
|
||||
|
||||
gst_element_class_set_static_metadata (element_class,
|
||||
"WebVTT encoder", "Codec/Encoder/Subtitle",
|
||||
"WebVTT subtitle encoder", "David Schleef <ds@schleef.org>");
|
||||
caps = gst_static_pad_template_get_caps (&src_template);
|
||||
gst_pad_set_caps (webvttenc->srcpad, caps);
|
||||
gst_caps_unref (caps);
|
||||
gst_event_unref (event);
|
||||
ret = TRUE;
|
||||
break;
|
||||
}
|
||||
default:
|
||||
ret = gst_pad_event_default (pad, parent, event);
|
||||
break;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void
|
||||
|
|
@ -259,12 +266,21 @@ gst_webvtt_enc_class_init (GstWebvttEncClass * klass)
|
|||
0,
|
||||
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS));
|
||||
|
||||
gst_element_class_add_pad_template (element_class,
|
||||
gst_static_pad_template_get (&sink_template));
|
||||
gst_element_class_add_pad_template (element_class,
|
||||
gst_static_pad_template_get (&src_template));
|
||||
|
||||
gst_element_class_set_static_metadata (element_class,
|
||||
"WebVTT encoder", "Codec/Encoder/Subtitle",
|
||||
"WebVTT subtitle encoder", "David Schleef <ds@schleef.org>");
|
||||
|
||||
GST_DEBUG_CATEGORY_INIT (webvttenc_debug, "webvttenc", 0,
|
||||
"SubRip subtitle encoder");
|
||||
}
|
||||
|
||||
static void
|
||||
gst_webvtt_enc_init (GstWebvttEnc * webvttenc, GstWebvttEncClass * klass)
|
||||
gst_webvtt_enc_init (GstWebvttEnc * webvttenc)
|
||||
{
|
||||
gst_webvtt_enc_reset (webvttenc);
|
||||
|
||||
|
|
@ -272,6 +288,9 @@ gst_webvtt_enc_init (GstWebvttEnc * webvttenc, GstWebvttEncClass * klass)
|
|||
gst_element_add_pad (GST_ELEMENT (webvttenc), webvttenc->srcpad);
|
||||
webvttenc->sinkpad =
|
||||
gst_pad_new_from_static_template (&sink_template, "sink");
|
||||
gst_pad_set_chain_function (webvttenc->sinkpad,
|
||||
GST_DEBUG_FUNCPTR (gst_webvtt_enc_chain));
|
||||
gst_pad_set_event_function (webvttenc->sinkpad,
|
||||
GST_DEBUG_FUNCPTR (gst_webvtt_enc_event));
|
||||
gst_element_add_pad (GST_ELEMENT (webvttenc), webvttenc->sinkpad);
|
||||
gst_pad_set_chain_function (webvttenc->sinkpad, gst_webvtt_enc_chain);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue