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mp3parse: don't build seek table if we can't seek.

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Fixes #573720 - unbounded memory usage increase when listening to mp3
stream for a long time.
This commit is contained in:
Michael Smith 2009-04-21 14:12:06 -07:00
parent 4927c124ff
commit e7450c2df7
2 changed files with 22 additions and 1 deletions
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18
gst/mpegaudioparse/gstmpegaudioparse.c
View File

@ -662,7 +662,8 @@ gst_mp3parse_emit_frame (GstMPEGAudioParse * mp3parse, guint size,
if (GST_BUFFER_TIMESTAMP (outbuf) == 0) if (GST_BUFFER_TIMESTAMP (outbuf) == 0)
mp3parse->exact_position = TRUE; mp3parse->exact_position = TRUE;
if (mp3parse->exact_position && GST_BUFFER_TIMESTAMP_IS_VALID (outbuf) && if (mp3parse->seekable &&
mp3parse->exact_position && GST_BUFFER_TIMESTAMP_IS_VALID (outbuf) &&
mp3parse->cur_offset != GST_BUFFER_OFFSET_NONE && mp3parse->cur_offset != GST_BUFFER_OFFSET_NONE &&
(!mp3parse->seek_table || (!mp3parse->seek_table ||
(mp3parse_seek_table_last_entry (mp3parse))->byte < (mp3parse_seek_table_last_entry (mp3parse))->byte <
@ -1329,9 +1330,24 @@ gst_mp3parse_chain (GstPad * pad, GstBuffer * buf)
/* Check the first frame for a Xing header to get our total length */ /* Check the first frame for a Xing header to get our total length */
if (mp3parse->frame_count == 0) { if (mp3parse->frame_count == 0) {
GstQuery *query;
/* For the first frame in the file, look for a Xing frame after /* For the first frame in the file, look for a Xing frame after
* the header, and output a codec tag */ * the header, and output a codec tag */
gst_mp3parse_handle_first_frame (mp3parse); gst_mp3parse_handle_first_frame (mp3parse);
/* Check if we're seekable */
query = gst_query_new_seeking (GST_FORMAT_BYTES);
if (!gst_pad_peer_query (mp3parse->sinkpad, query)) {
mp3parse->seekable = FALSE;
} else {
gboolean seekable;
GstFormat format;
gst_query_parse_seeking (query, &format, &seekable, NULL, NULL);
mp3parse->seekable = seekable;
}
gst_query_unref (query);
} }
/* Update VBR stats */ /* Update VBR stats */

5
gst/mpegaudioparse/gstmpegaudioparse.h
View File

@ -120,6 +120,11 @@ struct _GstMPEGAudioParse {
GSList *pending_accurate_seeks; GSList *pending_accurate_seeks;
gboolean exact_position; gboolean exact_position;
/* Track whether we're seekable. The seek table for accurate seeking is
* not maintained if we're not seekable */
gboolean seekable;
/* pending segment */ /* pending segment */
GstEvent *pending_segment; GstEvent *pending_segment;
/* pending events */ /* pending events */