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ext/theora/theoraparse.c (gst_theora_parse_init) ext/vorbis/vorbisparse.c (gst_vorbis_parse_init)
Original commit message from CVS: 2006-05-05 Andy Wingo <wingo@pobox.com> * ext/theora/theoraparse.c (gst_theora_parse_init) (theora_parse_src_convert, theora_parse_src_query): * ext/vorbis/vorbisparse.c (gst_vorbis_parse_init) (vorbis_parse_convert, vorbis_parse_src_query): Add convert and query functions on the source pads of the theora and vorbis parse elements. Fixes position querying when doing a remux.
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3 changed files with 331 additions and 0 deletions
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@ -1,3 +1,12 @@
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2006-05-05 Andy Wingo <wingo@pobox.com>
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* ext/theora/theoraparse.c (gst_theora_parse_init)
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(theora_parse_src_convert, theora_parse_src_query):
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* ext/vorbis/vorbisparse.c (gst_vorbis_parse_init)
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(vorbis_parse_convert, vorbis_parse_src_query): Add convert and
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query functions on the source pads of the theora and vorbis parse
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elements. Fixes position querying when doing a remux.
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2006-05-05 Michael Smith <msmith@fluendo.com>
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* ext/theora/theoraparse.c: (parse_granulepos),
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@ -92,6 +92,7 @@ static GstFlowReturn theora_parse_chain (GstPad * pad, GstBuffer * buffer);
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static GstStateChangeReturn theora_parse_change_state (GstElement * element,
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GstStateChange transition);
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static gboolean theora_parse_sink_event (GstPad * pad, GstEvent * event);
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static gboolean theora_parse_src_query (GstPad * pad, GstQuery * query);
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static void
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gst_theora_parse_base_init (gpointer g_class)
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@ -124,6 +125,7 @@ gst_theora_parse_init (GstTheoraParse * parse, GstTheoraParseClass * g_class)
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parse->srcpad =
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gst_pad_new_from_static_template (&theora_parse_src_factory, "src");
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gst_pad_set_query_function (parse->srcpad, theora_parse_src_query);
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gst_element_add_pad (GST_ELEMENT (parse), parse->srcpad);
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}
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@ -449,6 +451,172 @@ theora_parse_sink_event (GstPad * pad, GstEvent * event)
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return ret;
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}
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static gboolean
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theora_parse_src_convert (GstPad * pad,
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GstFormat src_format, gint64 src_value,
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GstFormat * dest_format, gint64 * dest_value)
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{
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gboolean res = TRUE;
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GstTheoraParse *parse;
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guint64 scale = 1;
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if (src_format == *dest_format) {
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*dest_value = src_value;
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return TRUE;
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}
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parse = GST_THEORA_PARSE (gst_pad_get_parent (pad));
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/* we need the info part before we can done something */
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if (!parse->streamheader_received)
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goto no_header;
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switch (src_format) {
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case GST_FORMAT_BYTES:
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switch (*dest_format) {
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case GST_FORMAT_DEFAULT:
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*dest_value = gst_util_uint64_scale_int (src_value, 2,
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parse->info.height * parse->info.width * 3);
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break;
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case GST_FORMAT_TIME:
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/* seems like a rather silly conversion, implement me if you like */
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default:
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res = FALSE;
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}
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break;
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case GST_FORMAT_TIME:
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switch (*dest_format) {
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case GST_FORMAT_BYTES:
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scale = 3 * (parse->info.width * parse->info.height) / 2;
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case GST_FORMAT_DEFAULT:
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*dest_value = scale * gst_util_uint64_scale (src_value,
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parse->info.fps_numerator,
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parse->info.fps_denominator * GST_SECOND);
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break;
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default:
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GST_DEBUG_OBJECT (parse, "cannot convert to format %s",
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gst_format_get_name (*dest_format));
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res = FALSE;
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}
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break;
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case GST_FORMAT_DEFAULT:
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switch (*dest_format) {
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case GST_FORMAT_TIME:
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*dest_value = gst_util_uint64_scale (src_value,
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GST_SECOND * parse->info.fps_denominator,
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parse->info.fps_numerator);
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break;
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case GST_FORMAT_BYTES:
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*dest_value = gst_util_uint64_scale_int (src_value,
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3 * parse->info.width * parse->info.height, 2);
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break;
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default:
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res = FALSE;
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}
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break;
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default:
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res = FALSE;
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}
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done:
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gst_object_unref (parse);
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return res;
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/* ERRORS */
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no_header:
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{
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GST_DEBUG_OBJECT (parse, "no header yet, cannot convert");
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res = FALSE;
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goto done;
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}
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}
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static gboolean
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theora_parse_src_query (GstPad * pad, GstQuery * query)
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{
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GstTheoraParse *parse;
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gboolean res = FALSE;
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parse = GST_THEORA_PARSE (gst_pad_get_parent (pad));
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_POSITION:
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{
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gint64 frame, value;
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GstFormat my_format, format;
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gint64 time;
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frame = parse->prev_frame;
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GST_LOG_OBJECT (parse,
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"query %p: we have current frame: %lld", query, frame);
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/* parse format */
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gst_query_parse_position (query, &format, NULL);
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/* and convert to the final format in two steps with time as the
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* intermediate step */
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my_format = GST_FORMAT_TIME;
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if (!(res =
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theora_parse_src_convert (parse->sinkpad, GST_FORMAT_DEFAULT,
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frame, &my_format, &time)))
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goto error;
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/* fixme: handle segments
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time = (time - parse->segment.start) + parse->segment.time;
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*/
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GST_LOG_OBJECT (parse,
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"query %p: our time: %" GST_TIME_FORMAT " (conv to %s)",
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query, GST_TIME_ARGS (time), gst_format_get_name (format));
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if (!(res =
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theora_parse_src_convert (pad, my_format, time, &format, &value)))
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goto error;
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gst_query_set_position (query, format, value);
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GST_LOG_OBJECT (parse,
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"query %p: we return %lld (format %u)", query, value, format);
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break;
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}
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case GST_QUERY_DURATION:
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/* forward to peer for total */
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if (!(res = gst_pad_query (GST_PAD_PEER (parse->sinkpad), query)))
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goto error;
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break;
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case GST_QUERY_CONVERT:
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{
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GstFormat src_fmt, dest_fmt;
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gint64 src_val, dest_val;
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gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
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if (!(res =
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theora_parse_src_convert (pad, src_fmt, src_val, &dest_fmt,
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&dest_val)))
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goto error;
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gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
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break;
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}
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default:
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res = gst_pad_query_default (pad, query);
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break;
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}
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done:
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gst_object_unref (parse);
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return res;
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/* ERRORS */
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error:
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{
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GST_DEBUG_OBJECT (parse, "query failed");
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goto done;
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}
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}
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static GstStateChangeReturn
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theora_parse_change_state (GstElement * element, GstStateChange transition)
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{
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@ -107,6 +107,10 @@ static GstFlowReturn vorbis_parse_chain (GstPad * pad, GstBuffer * buffer);
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static GstStateChangeReturn vorbis_parse_change_state (GstElement * element,
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GstStateChange transition);
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static gboolean vorbis_parse_sink_event (GstPad * pad, GstEvent * event);
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static gboolean vorbis_parse_src_query (GstPad * pad, GstQuery * query);
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static gboolean vorbis_parse_convert (GstPad * pad,
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GstFormat src_format, gint64 src_value,
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GstFormat * dest_format, gint64 * dest_value);
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static void
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gst_vorbis_parse_base_init (gpointer g_class)
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@ -139,6 +143,7 @@ gst_vorbis_parse_init (GstVorbisParse * parse, GstVorbisParseClass * g_class)
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parse->srcpad =
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gst_pad_new_from_static_template (&vorbis_parse_src_factory, "src");
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gst_pad_set_query_function (parse->srcpad, vorbis_parse_src_query);
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gst_element_add_pad (GST_ELEMENT (parse), parse->srcpad);
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}
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return ret;
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}
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static gboolean
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vorbis_parse_convert (GstPad * pad,
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GstFormat src_format, gint64 src_value,
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GstFormat * dest_format, gint64 * dest_value)
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{
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gboolean res = TRUE;
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GstVorbisParse *parse;
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guint64 scale = 1;
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parse = GST_VORBIS_PARSE (GST_PAD_PARENT (pad));
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/* fixme: assumes atomic access to lots of instance variables modified from
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* the streaming thread, including 64-bit variables */
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if (parse->packetno < 4)
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return FALSE;
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if (src_format == *dest_format) {
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*dest_value = src_value;
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return TRUE;
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}
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if (parse->sinkpad == pad &&
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(src_format == GST_FORMAT_BYTES || *dest_format == GST_FORMAT_BYTES))
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return FALSE;
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switch (src_format) {
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case GST_FORMAT_TIME:
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switch (*dest_format) {
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case GST_FORMAT_BYTES:
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scale = sizeof (float) * parse->vi.channels;
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case GST_FORMAT_DEFAULT:
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*dest_value =
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scale * gst_util_uint64_scale_int (src_value, parse->vi.rate,
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GST_SECOND);
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break;
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default:
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res = FALSE;
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}
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break;
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case GST_FORMAT_DEFAULT:
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switch (*dest_format) {
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case GST_FORMAT_BYTES:
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*dest_value = src_value * sizeof (float) * parse->vi.channels;
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break;
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case GST_FORMAT_TIME:
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*dest_value =
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gst_util_uint64_scale_int (src_value, GST_SECOND, parse->vi.rate);
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break;
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default:
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res = FALSE;
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}
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break;
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case GST_FORMAT_BYTES:
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switch (*dest_format) {
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case GST_FORMAT_DEFAULT:
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*dest_value = src_value / (sizeof (float) * parse->vi.channels);
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break;
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case GST_FORMAT_TIME:
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*dest_value = gst_util_uint64_scale_int (src_value, GST_SECOND,
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parse->vi.rate * sizeof (float) * parse->vi.channels);
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break;
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default:
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res = FALSE;
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}
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break;
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default:
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res = FALSE;
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}
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return res;
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}
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static gboolean
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vorbis_parse_src_query (GstPad * pad, GstQuery * query)
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{
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gint64 granulepos;
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GstVorbisParse *parse;
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gboolean res = FALSE;
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parse = GST_VORBIS_PARSE (GST_PAD_PARENT (pad));
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_POSITION:
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{
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GstFormat format;
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gint64 value;
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granulepos = parse->prev_granulepos;
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gst_query_parse_position (query, &format, NULL);
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/* and convert to the final format */
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if (!(res =
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vorbis_parse_convert (pad, GST_FORMAT_DEFAULT, granulepos,
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&format, &value)))
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goto error;
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/* fixme: support segments
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value = (value - parse->segment_start) + parse->segment_time;
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*/
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gst_query_set_position (query, format, value);
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GST_LOG_OBJECT (parse,
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"query %u: peer returned granulepos: %llu - we return %llu (format %u)",
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query, granulepos, value, format);
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break;
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}
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case GST_QUERY_DURATION:
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{
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/* fixme: not threadsafe */
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/* query peer for total length */
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if (!gst_pad_is_linked (parse->sinkpad)) {
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GST_WARNING_OBJECT (parse, "sink pad %" GST_PTR_FORMAT " is not linked",
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parse->sinkpad);
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goto error;
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}
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if (!(res = gst_pad_query (GST_PAD_PEER (parse->sinkpad), query)))
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goto error;
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break;
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}
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case GST_QUERY_CONVERT:
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{
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GstFormat src_fmt, dest_fmt;
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gint64 src_val, dest_val;
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gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
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if (!(res =
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vorbis_parse_convert (pad, src_fmt, src_val, &dest_fmt,
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&dest_val)))
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goto error;
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gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
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break;
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}
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default:
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res = gst_pad_query_default (pad, query);
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break;
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}
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return res;
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error:
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{
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GST_WARNING_OBJECT (parse, "error handling query");
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return res;
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}
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}
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static GstStateChangeReturn
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vorbis_parse_change_state (GstElement * element, GstStateChange transition)
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{
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