mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-27 04:01:08 +00:00
Code Issues 1 Projects Releases Wiki Activity

matroskamux: Dirac "muxing" units end on EOS too

Browse source 
A Dirac muxing unit are all non-picture, non-end-of-sequence
packets up to and including the first picture or eos packet.

See http://www.diracvideo.org/wiki/index.php/ContainerFormatMappingGuidelines
This commit is contained in:
Sebastian Dröge 2009-10-22 12:30:14 +02:00
parent 457ac565ba
commit 68176befa2
1 changed files with 10 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
gst/matroska/matroska-mux.c
View file

@ -2431,7 +2431,9 @@ gst_matroska_mux_create_buffer_header (GstMatroskaTrackContext * track,
return hdr;
}
#define DIRAC_PARSE_CODE_SEQUENCE 0x00
#define DIRAC_PARSE_CODE_SEQUENCE_HEADER 0x00
#define DIRAC_PARSE_CODE_END_OF_SEQUENCE 0x10
#define DIRAC_PARSE_CODE_IS_PICTURE(x) ((x & 0x08) != 0)
static GstBuffer *
gst_matroska_mux_handle_dirac_packet (GstMatroskaMux * mux,
@ -2444,14 +2446,14 @@ gst_matroska_mux_handle_dirac_packet (GstMatroskaMux * mux,
guint8 parse_code;
guint32 next_parse_offset;
GstBuffer *ret = NULL;
gboolean is_picture = FALSE;
gboolean is_muxing_unit = FALSE;
if (GST_BUFFER_SIZE (buf) < 13) {
gst_buffer_unref (buf);
return ret;
}
/* Check if this buffer contains a picture packet */
/* Check if this buffer contains a picture or end-of-sequence packet */
while (size >= 13) {
if (GST_READ_UINT32_BE (data) != 0x42424344 /* 'BBCD' */ ) {
gst_buffer_unref (buf);
@ -2459,13 +2461,14 @@ gst_matroska_mux_handle_dirac_packet (GstMatroskaMux * mux,
}
parse_code = GST_READ_UINT8 (data + 4);
if (parse_code == DIRAC_PARSE_CODE_SEQUENCE) {
if (parse_code == DIRAC_PARSE_CODE_SEQUENCE_HEADER) {
if (ctx->dirac_unit) {
gst_buffer_unref (ctx->dirac_unit);
ctx->dirac_unit = NULL;
}
} else if (parse_code & 0x08) {
is_picture = TRUE;
} else if (DIRAC_PARSE_CODE_IS_PICTURE (parse_code) ||
parse_code == DIRAC_PARSE_CODE_END_OF_SEQUENCE) {
is_muxing_unit = TRUE;
break;
}
@ -2483,7 +2486,7 @@ gst_matroska_mux_handle_dirac_packet (GstMatroskaMux * mux,
else
ctx->dirac_unit = gst_buffer_ref (buf);
if (is_picture) {
if (is_muxing_unit) {
ret = gst_buffer_make_metadata_writable (ctx->dirac_unit);
ctx->dirac_unit = NULL;
gst_buffer_copy_metadata (ret, buf,