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h264parse: Make proper use of the h264parser lib in parse_chain

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Minor debugging logs fixes
This commit is contained in:
Thibault Saunier 2011-10-06 12:15:45 -03:00
parent 9c221f492d
commit f94236078c
1 changed files with 38 additions and 57 deletions
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95
gst/videoparsers/gsth264parse.c
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@ -339,8 +339,7 @@ gst_h264_parse_wrap_nal (GstH264Parse * h264parse, guint format, guint8 * data,
GstBuffer *buf;
const guint nl = h264parse->nal_length_size;
GST_DEBUG_OBJECT (h264parse, "nal length %d %d", size,
h264parse->nal_length_size);
GST_DEBUG_OBJECT (h264parse, "nal length %d", size);
buf = gst_buffer_new_and_alloc (size + nl + 4);
if (format == GST_H264_PARSE_FORMAT_AVC) {
@ -1243,7 +1242,8 @@ gst_h264_parse_set_caps (GstBaseParse * parse, GstCaps * caps)
/* this is the number of bytes in front of the NAL units to mark their
* length */
h264parse->nal_length_size = (data[4] & 0x03) + 1;
GST_DEBUG_OBJECT (h264parse, "nal length %u", h264parse->nal_length_size);
GST_DEBUG_OBJECT (h264parse, "nal length size %u",
h264parse->nal_length_size);
num_sps = data[5] & 0x1f;
off = 6;
@ -1340,50 +1340,36 @@ gst_h264_parse_chain (GstPad * pad, GstBuffer * buffer)
GstH264Parse *h264parse = GST_H264_PARSE (GST_PAD_PARENT (pad));
if (h264parse->packetized && buffer) {
GstByteReader br;
GstBuffer *sub;
GstFlowReturn ret = GST_FLOW_OK;
guint32 len;
GstH264ParserResult parse_res;
GstH264NalUnit nalu;
const guint nl = h264parse->nal_length_size;
if (nl < 1 || nl > 4) {
GST_DEBUG_OBJECT (h264parse, "insufficient data to split input");
gst_buffer_unref (buffer);
return GST_FLOW_NOT_NEGOTIATED;
}
GST_LOG_OBJECT (h264parse, "processing packet buffer of size %d",
GST_BUFFER_SIZE (buffer));
gst_byte_reader_init_from_buffer (&br, buffer);
while (ret == GST_FLOW_OK && gst_byte_reader_get_remaining (&br)) {
parse_res = gst_h264_parser_identify_nalu_avc (h264parse->nalparser,
GST_BUFFER_DATA (buffer), 0, GST_BUFFER_SIZE (buffer), nl, &nalu);
while (parse_res == GST_H264_PARSER_OK) {
GST_DEBUG_OBJECT (h264parse, "AVC nal offset %d",
gst_byte_reader_get_pos (&br));
if (gst_byte_reader_get_remaining (&br) < nl)
goto parse_failed;
switch (nl) {
case 4:
len = gst_byte_reader_get_uint32_be_unchecked (&br);
break;
case 3:
len = gst_byte_reader_get_uint24_be_unchecked (&br);
break;
case 2:
len = gst_byte_reader_get_uint16_be_unchecked (&br);
break;
case 1:
len = gst_byte_reader_get_uint8_unchecked (&br);
break;
default:
goto not_negotiated;
}
nalu.offset + nalu.size);
GST_DEBUG_OBJECT (h264parse, "AVC nal size %d", len);
if (gst_byte_reader_get_remaining (&br) < len)
goto parse_failed;
if (h264parse->split_packetized) {
/* convert to NAL aligned byte stream input */
sub = gst_h264_parse_wrap_nal (h264parse, GST_H264_PARSE_FORMAT_BYTE,
(guint8 *) gst_byte_reader_get_data_unchecked (&br, len), len);
nalu.data + nalu.offset, nalu.size);
/* at least this should make sense */
GST_BUFFER_TIMESTAMP (sub) = GST_BUFFER_TIMESTAMP (buffer);
GST_LOG_OBJECT (h264parse, "pushing NAL of size %d", len);
GST_LOG_OBJECT (h264parse, "pushing NAL of size %d", nalu.size);
ret = h264parse->parse_chain (pad, sub);
} else {
/* pass-through: no looking for frames (and nal processing),
@ -1391,13 +1377,15 @@ gst_h264_parse_chain (GstPad * pad, GstBuffer * buffer)
/* NOTE: so if it is really configured to do so,
* pre_push can/will still insert codec-data at intervals,
* which is not really pure pass-through, but anyway ... */
gst_h264_parser_identify_nalu (h264parse->nalparser,
GST_BUFFER_DATA (buffer), gst_byte_reader_get_pos (&br) - nl,
GST_BUFFER_SIZE (buffer), &nalu);
gst_h264_parse_process_nal (h264parse, &nalu);
gst_byte_reader_skip_unchecked (&br, len);
}
parse_res = gst_h264_parser_identify_nalu_avc (h264parse->nalparser,
GST_BUFFER_DATA (buffer), nalu.offset + nalu.size,
GST_BUFFER_SIZE (buffer), nl, &nalu);
}
if (h264parse->split_packetized) {
gst_buffer_unref (buffer);
return ret;
@ -1406,31 +1394,24 @@ gst_h264_parse_chain (GstPad * pad, GstBuffer * buffer)
* ensure nothing happens with this later on */
gst_adapter_clear (h264parse->frame_out);
}
}
exit:
return h264parse->parse_chain (pad, buffer);
if (parse_res == GST_H264_PARSER_NO_NAL_END ||
parse_res == GST_H264_PARSER_BROKEN_DATA) {
/* ERRORS */
not_negotiated:
{
GST_DEBUG_OBJECT (h264parse, "insufficient data to split input");
gst_buffer_unref (buffer);
return GST_FLOW_NOT_NEGOTIATED;
}
parse_failed:
{
if (h264parse->split_packetized) {
GST_ELEMENT_ERROR (h264parse, STREAM, FAILED, (NULL),
("invalid AVC input data"));
gst_buffer_unref (buffer);
return GST_FLOW_ERROR;
} else {
/* do not meddle to much in this case */
GST_DEBUG_OBJECT (h264parse, "parsing packet failed");
goto exit;
if (h264parse->split_packetized) {
GST_ELEMENT_ERROR (h264parse, STREAM, FAILED, (NULL),
("invalid AVC input data"));
gst_buffer_unref (buffer);
return GST_FLOW_ERROR;
} else {
/* do not meddle to much in this case */
GST_DEBUG_OBJECT (h264parse, "parsing packet failed");
}
}
}
return h264parse->parse_chain (pad, buffer);
}
static void