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ext/amrnb/amrnbdec.c: Some more comments.

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Original commit message from CVS:
* ext/amrnb/amrnbdec.c: (gst_amrnbdec_setcaps),
(gst_amrnbdec_chain), (gst_amrnbdec_state_change):
Some more comments.

* ext/mpeg2dec/gstmpeg2dec.c: (crop_buffer), (handle_slice):
Applied patch from Fabrizio Gennari, fixes #330844.
This commit is contained in:
Wim Taymans 2006-02-15 10:18:39 +00:00
parent 7e9d336ceb
commit 2c813b4b21
3 changed files with 26 additions and 10 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
2006-02-15 Wim Taymans <wim@fluendo.com>
* ext/amrnb/amrnbdec.c: (gst_amrnbdec_setcaps),
(gst_amrnbdec_chain), (gst_amrnbdec_state_change):
Some more comments.
* ext/mpeg2dec/gstmpeg2dec.c: (crop_buffer), (handle_slice):
Applied patch from Fabrizio Gennari, fixes #330844.
2006-02-14 Tim-Philipp Müller <tim at centricular dot net>
* ext/dvdread/dvdreadsrc.c: (gst_dvd_read_src_init),

5
ext/amrnb/amrnbdec.c
View file

@ -236,6 +236,8 @@ gst_amrnbdec_chain (GstPad * pad, GstBuffer * buffer)
if (gst_adapter_available (amrnbdec->adapter) < block)
break;
/* the library seems to write into the source data, hence
* the copy. */
data = (guint8 *) gst_adapter_take (amrnbdec->adapter, block);
/* get output */
@ -246,8 +248,7 @@ gst_amrnbdec_chain (GstPad * pad, GstBuffer * buffer)
amrnbdec->ts += GST_BUFFER_DURATION (out);
gst_buffer_set_caps (out, GST_PAD_CAPS (amrnbdec->srcpad));
/* decode, the library seems to write into the source data, hence
* the copy. */
/* decode */
Decoder_Interface_Decode (amrnbdec->handle, data,
(short *) GST_BUFFER_DATA (out), 0);
g_free (data);

22
ext/mpeg2dec/gstmpeg2dec.c
View file

@ -189,7 +189,7 @@ static const GstEventMask *gst_mpeg2dec_get_event_masks (GstPad * pad);
static GstElementClass *parent_class = NULL;
static GstBuffer *crop_buffer (GstMpeg2dec * mpeg2dec, GstBuffer * input);
static gboolean crop_buffer (GstMpeg2dec * mpeg2dec, GstBuffer ** buf);
/*static guint gst_mpeg2dec_signals[LAST_SIGNAL] = { 0 };*/
@ -342,14 +342,16 @@ gst_mpeg2dec_get_index (GstElement * element)
return mpeg2dec->index;
}
static GstBuffer *
crop_buffer (GstMpeg2dec * mpeg2dec, GstBuffer * input)
static gboolean
crop_buffer (GstMpeg2dec * mpeg2dec, GstBuffer ** buf)
{
unsigned char *in_data;
unsigned char *out_data;
unsigned int h_subsample;
unsigned int v_subsample;
unsigned int line;
gboolean result = FALSE;
GstBuffer *input = *buf;
GstBuffer *outbuf = input;
/*We crop only if the target region is smaller than the input one */
@ -376,6 +378,7 @@ crop_buffer (GstMpeg2dec * mpeg2dec, GstBuffer * input)
h_subsample = 2;
v_subsample = 2;
}
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (mpeg2dec->srcpad));
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (input);
GST_BUFFER_OFFSET (outbuf) = GST_BUFFER_OFFSET (input);
@ -405,11 +408,12 @@ crop_buffer (GstMpeg2dec * mpeg2dec, GstBuffer * input)
in_data += mpeg2dec->decoded_width / h_subsample;
}
gst_buffer_unref (input);
*buf = outbuf;
result = TRUE;
}
}
return outbuf;
return result;
}
static GstFlowReturn
@ -713,6 +717,8 @@ handle_slice (GstMpeg2dec * mpeg2dec, const mpeg2_info_t * info)
GST_TIME_ARGS (mpeg2dec->next_time),
GST_TIME_ARGS (mpeg2dec->segment_start));
} else {
gboolean cropped_outbuf_different_from_outbuf = FALSE;
GST_LOG_OBJECT (mpeg2dec, "pushing buffer, timestamp %"
GST_TIME_FORMAT ", duration %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)),
@ -720,13 +726,13 @@ handle_slice (GstMpeg2dec * mpeg2dec, const mpeg2_info_t * info)
if ((mpeg2dec->decoded_height > mpeg2dec->height) ||
(mpeg2dec->decoded_width > mpeg2dec->width)) {
/* CHECKME: this might unref outbuf and return a new buffer.
* Does this affect the info->discard_fbuf stuff below? */
outbuf = crop_buffer (mpeg2dec, outbuf);
cropped_outbuf_different_from_outbuf = crop_buffer (mpeg2dec, &outbuf);
}
gst_buffer_ref (outbuf);
ret = gst_pad_push (mpeg2dec->srcpad, outbuf);
if (cropped_outbuf_different_from_outbuf)
gst_buffer_unref (outbuf);
}
}