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ext/mad/gstmad.c: When pad_alloc returns other-than-GST_FLOW_OK and mad exits early, skip frame synthesis and consume...

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Original commit message from CVS:
* ext/mad/gstmad.c: (gst_mad_chain):
When pad_alloc returns other-than-GST_FLOW_OK and mad exits early,
skip frame synthesis and consume input data as if we'd done the
decode. Makes mad not error when the src pad is not connected.
(#319784)
This commit is contained in:
Jan Schmidt 2005-11-25 00:03:52 +00:00
parent 491c9ab3e0
commit 93714f6be3
3 changed files with 30 additions and 14 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
2005-11-25 Jan Schmidt <thaytan@mad.scientist.com>
* ext/mad/gstmad.c: (gst_mad_chain):
When pad_alloc returns other-than-GST_FLOW_OK and mad exits early,
skip frame synthesis and consume input data as if we'd done the
decode. Makes mad not error when the src pad is not connected.
(#319784)
2005-11-23 Martin Soto <martinsoto@users.sourceforge.net>
* gst/mpegstream/gstmpegparse.c (gst_mpeg_parse_class_init)

2
common

@ -1 +1 @@
Subproject commit ea1409191cc1e71273b2dbdd94e7ab5fc5a60a51
Subproject commit 1b24580b06e738f920b33ea68dffd83d953f0bba

34
ext/mad/gstmad.c
View file

@ -1333,6 +1333,7 @@ gst_mad_chain (GstPad * pad, GstBuffer * buffer)
guint64 time_offset;
guint64 time_duration;
unsigned char const *before_sync, *after_sync;
gboolean goto_exit = FALSE;
mad->in_error = FALSE;
@ -1359,7 +1360,7 @@ gst_mad_chain (GstPad * pad, GstBuffer * buffer)
break;
} else {
GST_LOG ("sync error, flushing unneeded data");
goto next;
goto next_no_samples;
}
}
/* we are in an error state */
@ -1426,10 +1427,9 @@ gst_mad_chain (GstPad * pad, GstBuffer * buffer)
GST_DEBUG ("synced to data: 0x%0x 0x%0x", *mad->stream.ptr.byte,
*(mad->stream.ptr.byte + 1));
mad_stream_sync (&mad->stream);
/* recoverable errors pass */
goto next;
goto next_no_samples;
}
if (mad->check_for_xing) {
@ -1450,7 +1450,7 @@ gst_mad_chain (GstPad * pad, GstBuffer * buffer)
}
mad->check_for_xing = FALSE;
goto next;
goto next_no_samples;
}
/* if we're not resyncing/in error, check if caps need to be set again */
@ -1492,20 +1492,24 @@ gst_mad_chain (GstPad * pad, GstBuffer * buffer)
/* for sample accurate seeking, calculate how many samples
to skip and send the remaining pcm samples */
GstBuffer *outbuffer;
GstBuffer *outbuffer = NULL;
gint16 *outdata;
mad_fixed_t const *left_ch, *right_ch;
mad_synth_frame (&mad->synth, &mad->frame);
left_ch = mad->synth.pcm.samples[0];
right_ch = mad->synth.pcm.samples[1];
/* will attach the caps to the buffer */
result =
gst_pad_alloc_buffer (mad->srcpad, 0, nsamples * mad->channels * 2,
GST_PAD_CAPS (mad->srcpad), &outbuffer);
if (result != GST_FLOW_OK)
goto end;
if (result != GST_FLOW_OK) {
/* Head for the exit, dropping samples as we go */
GST_LOG ("Skipping frame synthesis due to pad_alloc return value");
goto_exit = TRUE;
goto skip_frame;
}
mad_synth_frame (&mad->synth, &mad->frame);
left_ch = mad->synth.pcm.samples[0];
right_ch = mad->synth.pcm.samples[1];
outdata = (gint16 *) GST_BUFFER_DATA (outbuffer);
@ -1546,10 +1550,12 @@ gst_mad_chain (GstPad * pad, GstBuffer * buffer)
result = gst_pad_push (mad->srcpad, outbuffer);
if (result != GST_FLOW_OK && result != GST_FLOW_NOT_LINKED) {
goto end;
/* Head for the exit, dropping samples as we go */
goto_exit = TRUE;
}
}
skip_frame:
mad->total_samples += nsamples;
/* we have a queued timestamp on the incoming buffer that we should
@ -1565,7 +1571,7 @@ gst_mad_chain (GstPad * pad, GstBuffer * buffer)
goto end;
}
next:
next_no_samples:
/* figure out how many bytes mad consumed */
/* if consumed is already set, it's from the resync higher up, so
we need to use that value instead. Otherwise, recalculate from
@ -1578,6 +1584,8 @@ gst_mad_chain (GstPad * pad, GstBuffer * buffer)
mad_input_buffer += consumed;
mad->tempsize -= consumed;
mad->bytes_consumed += consumed;
if (goto_exit == TRUE)
goto end;
}
/* we only get here from breaks, tempsize never actually drops below 0 */
memmove (mad->tempbuffer, mad_input_buffer, mad->tempsize);