mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-23 18:21:04 +00:00
Code Issues 1 Projects Releases Wiki Activity

av1parse: Improve the logic when to drop the OBU.

Browse source 
When drop some OBU, we need to go on. The current manner will make
the data access out range of the buffer mapping.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1979>
This commit is contained in:
He Junyan 2021-01-23 17:26:25 +08:00 committed by Víctor Manuel Jáquez Leal
parent e8bb0fa062
commit a9c8aa4788
1 changed files with 9 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
gst/videoparsers/gstav1parse.c
View file

@ -1191,7 +1191,7 @@ gst_av1_parse_handle_obu_to_obu (GstBaseParse * parse,
total_consumed = 0;
again:
while (TRUE) {
while (total_consumed < map_info.size) {
frame_complete = FALSE;
res = gst_av1_parser_identify_one_obu (self->parser,
map_info.data + total_consumed, map_info.size - total_consumed,
@ -1202,12 +1202,8 @@ again:
break;
total_consumed += consumed;
g_assert (total_consumed <= map_info.size);
if (total_consumed >= map_info.size)
break;
}
g_assert (total_consumed <= map_info.size);
if (total_consumed) {
/* If we get something, always output it even already met some error.
@ -1255,6 +1251,7 @@ again:
} else if (res == GST_AV1_PARSER_DROP) {
GST_DEBUG_OBJECT (parse, "Drop %d data", consumed);
total_consumed += consumed;
res = GST_AV1_PARSER_OK;
goto again;
} else if (res != GST_AV1_PARSER_OK) {
GST_ERROR_OBJECT (parse, "Parse obu get unexpect error %d", res);
@ -1295,7 +1292,7 @@ gst_av1_parse_handle_to_small_and_equal_align (GstBaseParse * parse,
total_consumed = 0;
frame_complete = FALSE;
again:
while (TRUE) {
while (total_consumed < map_info.size) {
res = gst_av1_parser_identify_one_obu (self->parser,
map_info.data + total_consumed, map_info.size - total_consumed,
&obu, &consumed);
@ -1324,11 +1321,8 @@ again:
if (self->align == GST_AV1_PARSE_ALIGN_FRAME && frame_complete)
break;
g_assert (total_consumed <= map_info.size);
if (total_consumed >= map_info.size)
break;
}
g_assert (total_consumed <= map_info.size);
if (res == GST_AV1_PARSER_BITSTREAM_ERROR) {
/* Discard the whole frame */
@ -1350,6 +1344,7 @@ again:
} else if (res == GST_AV1_PARSER_DROP) {
GST_DEBUG_OBJECT (parse, "Drop %d data", consumed);
total_consumed += consumed;
res = GST_AV1_PARSER_OK;
goto again;
} else if (res != GST_AV1_PARSER_OK) {
GST_ERROR_OBJECT (parse, "Parse obu get unexpect error %d", res);
@ -1489,6 +1484,7 @@ again:
} else if (res == GST_AV1_PARSER_DROP) {
GST_DEBUG_OBJECT (parse, "Drop %d data", consumed);
self->last_parsed_offset += consumed;
res = GST_AV1_PARSER_OK;
goto again;
} else if (res == GST_AV1_PARSER_OK) {
/* Everything is correct but still not get a frame or tu,
@ -1537,7 +1533,7 @@ gst_av1_parse_detect_alignment (GstBaseParse * parse,
got_frame = FALSE;
total_consumed = 0;
again:
while (TRUE) {
while (total_consumed < map_info.size) {
res = gst_av1_parser_identify_one_obu (self->parser,
map_info.data + total_consumed, map_info.size - total_consumed,
&obu, &consumed);
@ -1557,9 +1553,6 @@ again:
if (got_seq || got_frame)
break;
if (total_consumed >= map_info.size)
break;
}
gst_av1_parser_reset (self->parser, FALSE);
@ -1576,6 +1569,7 @@ again:
goto out;
} else if (res == GST_AV1_PARSER_DROP) {
total_consumed += consumed;
res = GST_AV1_PARSER_OK;
goto again;
}