static void
feed_textbuf (GstSubParse * self, GstBuffer * buf)
{
gboolean discont;
discont = GST_BUFFER_IS_DISCONT (buf);
if (GST_BUFFER_OFFSET_IS_VALID (buf) &&
GST_BUFFER_OFFSET (buf) != self->offset) {
self->offset = GST_BUFFER_OFFSET (buf);
discont = TRUE;
}
if (discont) {
GST_INFO ("discontinuity");
/* flush the parser state */
parser_state_init (&self->state);
g_string_truncate (self->textbuf, 0);
sami_context_reset (&self->state);
/* we could set a flag to make sure that the next buffer we push out also
* has the DISCONT flag set, but there's no point really given that it's
* subtitles which are discontinuous by nature. */
}
self->textbuf = g_string_append_len (self->textbuf,
(gchar *) GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
self->offset = GST_BUFFER_OFFSET (buf) + GST_BUFFER_SIZE (buf);
self->next_offset = self->offset;
gst_buffer_unref (buf);
}
/*Glue to make sure the types match up*/
parse_result parse(lex_result in) {
parse_result result;
result.names = in.names;
result.AST = parse_blocklines(parser_state_init(in.program, 0)).tree;
result.file = in.file;
lexid_dynarray_free(in.program);
return result;
}
static GstCaps *
gst_sub_parse_format_autodetect (GstSubParse * self)
{
gchar *data;
GstSubParseFormat format;
if (strlen (self->textbuf->str) < 35) {
GST_DEBUG ("File too small to be a subtitles file");
return NULL;
}
data = g_strndup (self->textbuf->str, 35);
format = gst_sub_parse_data_format_autodetect (data);
g_free (data);
self->parser_type = format;
parser_state_init (&self->state);
switch (format) {
case GST_SUB_PARSE_FORMAT_MDVDSUB:
self->parse_line = parse_mdvdsub;
return gst_caps_new_simple ("text/x-pango-markup", NULL);
case GST_SUB_PARSE_FORMAT_SUBRIP:
self->parse_line = parse_subrip;
return gst_caps_new_simple ("text/x-pango-markup", NULL);
case GST_SUB_PARSE_FORMAT_MPSUB:
self->parse_line = parse_mpsub;
return gst_caps_new_simple ("text/plain", NULL);
case GST_SUB_PARSE_FORMAT_SAMI:
self->parse_line = parse_sami;
sami_context_init (&self->state);
return gst_caps_new_simple ("text/x-pango-markup", NULL);
case GST_SUB_PARSE_FORMAT_TMPLAYER:
self->parse_line = parse_tmplayer;
self->state.max_duration = 5 * GST_SECOND;
return gst_caps_new_simple ("text/plain", NULL);
case GST_SUB_PARSE_FORMAT_MPL2:
self->parse_line = parse_mpl2;
return gst_caps_new_simple ("text/x-pango-markup", NULL);
case GST_SUB_PARSE_FORMAT_SUBVIEWER:
self->parse_line = parse_subviewer;
return gst_caps_new_simple ("text/plain", NULL);
case GST_SUB_PARSE_FORMAT_UNKNOWN:
default:
GST_DEBUG ("no subtitle format detected");
GST_ELEMENT_ERROR (self, STREAM, WRONG_TYPE,
("The input is not a valid/supported subtitle file"), (NULL));
return NULL;
}
}
static gboolean
gst_vaapi_decoder_init (GstVaapiDecoder * decoder, GstVaapiDisplay * display,
GstCaps * caps)
{
const GstVaapiDecoderClass *const klass =
GST_VAAPI_DECODER_GET_CLASS (decoder);
GstVideoCodecState *codec_state;
guint sub_size;
parser_state_init (&decoder->parser_state);
codec_state = g_slice_new0 (GstVideoCodecState);
codec_state->ref_count = 1;
gst_video_info_init (&codec_state->info);
decoder->user_data = NULL;
decoder->display = gst_vaapi_display_ref (display);
decoder->va_display = GST_VAAPI_DISPLAY_VADISPLAY (display);
decoder->context = NULL;
decoder->va_context = VA_INVALID_ID;
decoder->codec = 0;
decoder->codec_state = codec_state;
decoder->codec_state_changed_func = NULL;
decoder->codec_state_changed_data = NULL;
decoder->buffers = g_async_queue_new_full ((GDestroyNotify) gst_buffer_unref);
decoder->frames = g_async_queue_new_full ((GDestroyNotify)
gst_video_codec_frame_unref);
if (!set_caps (decoder, caps))
return FALSE;
sub_size = GST_VAAPI_MINI_OBJECT_CLASS (klass)->size - sizeof (*decoder);
if (sub_size > 0)
memset (((guchar *) decoder) + sizeof (*decoder), 0, sub_size);
if (klass->create && !klass->create (decoder))
return FALSE;
return TRUE;
}
/*consumes one token from the stream*/
parser_state consume(lexid toconsume, parser_state in) {
if (lexid_eq(toconsume, getCurrent(in))) {
return parser_state_init(in.program, in.index + 1);
}
return in; //TODO: throw an error!
}
