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ac3parse: fix buffer duration on blocks-per-frame change

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The gst_base_parse_set_frame_rate call was predicated on a change to
sample rate, duration or profile. However, the block count per frame can
also change between packets, which would result in incorrect buffer
durations.
This commit is contained in:
René Stadler 2011-07-11 15:23:41 +03:00 committed by René Stadler
parent abb646dcd1
commit fd38772d3e
2 changed files with 15 additions and 3 deletions
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17
gst/audioparsers/gstac3parse.c
View File

@ -204,6 +204,7 @@ gst_ac3_parse_reset (GstAc3Parse * ac3parse)
{ {
ac3parse->channels = -1; ac3parse->channels = -1;
ac3parse->sample_rate = -1; ac3parse->sample_rate = -1;
ac3parse->blocks = -1;
ac3parse->eac = FALSE; ac3parse->eac = FALSE;
} }
@ -457,13 +458,14 @@ gst_ac3_parse_parse_frame (GstBaseParse * parse, GstBaseParseFrame * frame)
GstAc3Parse *ac3parse = GST_AC3_PARSE (parse); GstAc3Parse *ac3parse = GST_AC3_PARSE (parse);
GstBuffer *buf = frame->buffer; GstBuffer *buf = frame->buffer;
guint fsize, rate, chans, blocks, sid; guint fsize, rate, chans, blocks, sid;
gboolean eac; gboolean eac, update_rate = FALSE;
if (!gst_ac3_parse_frame_header (ac3parse, buf, &fsize, &rate, &chans, if (!gst_ac3_parse_frame_header (ac3parse, buf, &fsize, &rate, &chans,
&blocks, &sid, &eac)) &blocks, &sid, &eac))
goto broken_header; goto broken_header;
GST_LOG_OBJECT (parse, "size: %u, rate: %u, chans: %u", fsize, rate, chans); GST_LOG_OBJECT (parse, "size: %u, blocks: %u, rate: %u, chans: %u", fsize,
blocks, rate, chans);
if (G_UNLIKELY (sid)) { if (G_UNLIKELY (sid)) {
/* dependent frame, no need to (ac)count for or consider further */ /* dependent frame, no need to (ac)count for or consider further */
@ -492,9 +494,18 @@ gst_ac3_parse_parse_frame (GstBaseParse * parse, GstBaseParseFrame * frame)
ac3parse->channels = chans; ac3parse->channels = chans;
ac3parse->eac = eac; ac3parse->eac = eac;
gst_base_parse_set_frame_rate (parse, rate, 256 * blocks, 2, 2); update_rate = TRUE;
} }
if (G_UNLIKELY (ac3parse->blocks != blocks)) {
ac3parse->blocks = blocks;
update_rate = TRUE;
}
if (G_UNLIKELY (update_rate))
gst_base_parse_set_frame_rate (parse, rate, 256 * blocks, 2, 2);
return GST_FLOW_OK; return GST_FLOW_OK;
/* ERRORS */ /* ERRORS */

1
gst/audioparsers/gstac3parse.h
View File

@ -53,6 +53,7 @@ struct _GstAc3Parse {
/*< private >*/ /*< private >*/
gint sample_rate; gint sample_rate;
gint channels; gint channels;
gint blocks;
gboolean eac; gboolean eac;
}; };