diff options
Diffstat (limited to 'common/recipes-multimedia/gstreamer/gstreamer1.0-plugins-ugly/0002-asfdemux-asfpacket-set-frame-start-code-to-VC-1-adva.patch')
| -rw-r--r-- | common/recipes-multimedia/gstreamer/gstreamer1.0-plugins-ugly/0002-asfdemux-asfpacket-set-frame-start-code-to-VC-1-adva.patch | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/common/recipes-multimedia/gstreamer/gstreamer1.0-plugins-ugly/0002-asfdemux-asfpacket-set-frame-start-code-to-VC-1-adva.patch b/common/recipes-multimedia/gstreamer/gstreamer1.0-plugins-ugly/0002-asfdemux-asfpacket-set-frame-start-code-to-VC-1-adva.patch new file mode 100644 index 0000000..2c81e1b --- /dev/null +++ b/common/recipes-multimedia/gstreamer/gstreamer1.0-plugins-ugly/0002-asfdemux-asfpacket-set-frame-start-code-to-VC-1-adva.patch @@ -0,0 +1,143 @@ +From 389480c0a11c134b963fe4d249d49549db519dec Mon Sep 17 00:00:00 2001 +From: Kazunori Kobayashi <kkobayas@igel.co.jp> +Date: Tue, 18 Jun 2013 12:28:32 +0900 +Subject: [PATCH 2/2] asfdemux/asfpacket: set frame start code to VC-1 advanced + profile stream + +VC-1 advanced profile constrains the bitstream format to pair +the frame data with the frame start code. +--- + gst/asfdemux/asfpacket.c | 73 ++++++++++++++++++++++++++++++++++++++++++++---- + 1 file changed, 67 insertions(+), 6 deletions(-) + +diff --git a/gst/asfdemux/asfpacket.c b/gst/asfdemux/asfpacket.c +index 12eede8..7b72aa0 100644 +--- a/gst/asfdemux/asfpacket.c ++++ b/gst/asfdemux/asfpacket.c +@@ -72,7 +72,7 @@ asf_packet_read_varlen_int (guint lentype_flags, guint lentype_bit_offset, + + static GstBuffer * + asf_packet_create_payload_buffer (AsfPacket * packet, const guint8 ** p_data, +- guint * p_size, guint payload_len) ++ guint * p_size, guint payload_len, gboolean need_st_code) + { + guint off; + +@@ -84,6 +84,39 @@ asf_packet_create_payload_buffer (AsfPacket * packet, const guint8 ** p_data, + *p_data += payload_len; + *p_size -= payload_len; + ++ /* set start code for VC-1 advanced profile */ ++ if (need_st_code && off >= 4) { ++ const guint8 *pos; ++ ++ pos = packet->bdata + off; ++ /* check if this packet has a start code */ ++ if (pos[0] != 0x00 || pos[1] != 0x00 || pos[2] != 0x01 || pos[3] != 0x0d) { ++ GstBuffer *subbuf; ++ GstMapInfo map; ++ ++ subbuf = gst_buffer_copy_region (packet->buf, GST_BUFFER_COPY_ALL, ++ off - 4, payload_len + 4); ++ if (subbuf == NULL) { ++ GST_ERROR ("Failed to create a sub-buffer"); ++ return NULL; ++ } ++ ++ if (!gst_buffer_map (subbuf, &map, GST_MAP_WRITE)) { ++ GST_ERROR ("Failed to create a gstbuffer mapping"); ++ return NULL; ++ } ++ ++ map.data[0] = 0x00; ++ map.data[1] = 0x00; ++ map.data[2] = 0x01; ++ map.data[3] = 0x0d; ++ ++ gst_buffer_unmap (subbuf, &map); ++ ++ return subbuf; ++ } ++ } ++ + return gst_buffer_copy_region (packet->buf, GST_BUFFER_COPY_ALL, off, + payload_len); + } +@@ -284,6 +317,9 @@ gst_asf_demux_parse_payload (GstASFDemux * demux, AsfPacket * packet, + gboolean is_compressed; + guint payload_len; + guint stream_num; ++ GstStructure *structure; ++ const gchar *fourcc; ++ gboolean need_st_code = FALSE; + + if (G_UNLIKELY (*p_size < 1)) { + GST_WARNING_OBJECT (demux, "Short packet!"); +@@ -363,6 +399,18 @@ gst_asf_demux_parse_payload (GstASFDemux * demux, AsfPacket * packet, + return TRUE; + } + ++ structure = gst_caps_get_structure (stream->caps, 0); ++ fourcc = gst_structure_get_string (structure, "format"); ++ if (fourcc) { ++ /* ++ * set start code for VC-1 advanced profile if fourcc is 'WVC1' and this ++ * packet is at the head of a payload. ++ */ ++ if (strncmp (fourcc, "WVC1", strlen ("WVC1")) == 0 ++ && payload.mo_offset == 0) ++ need_st_code = TRUE; ++ } ++ + if (G_UNLIKELY (!is_compressed)) { + GST_LOG_OBJECT (demux, "replicated data length: %u", payload.rep_data_len); + +@@ -397,7 +445,7 @@ gst_asf_demux_parse_payload (GstASFDemux * demux, AsfPacket * packet, + /* if the media object is not fragmented, just create a sub-buffer */ + GST_LOG_OBJECT (demux, "unfragmented media object size %u", payload_len); + payload.buf = asf_packet_create_payload_buffer (packet, p_data, p_size, +- payload_len); ++ payload_len, need_st_code); + payload.buf_filled = payload_len; + gst_asf_payload_queue_for_stream (demux, &payload, stream); + } else { +@@ -437,11 +485,24 @@ gst_asf_demux_parse_payload (GstASFDemux * demux, AsfPacket * packet, + "any previous fragment, ignoring payload"); + } + } else { ++ const guint8 st_code[] = { 0x00, 0x00, 0x01, 0x0d }; ++ + GST_LOG_OBJECT (demux, "allocating buffer of size %u for fragmented " + "media object", payload.mo_size); +- payload.buf = gst_buffer_new_allocate (NULL, payload.mo_size, NULL); +- gst_buffer_fill (payload.buf, 0, payload_data, payload_len); +- payload.buf_filled = payload_len; ++ if ((payload_data[0] != 0x00 || payload_data[1] != 0x00 || ++ payload_data[2] != 0x01 || payload_data[3] != 0x0d) && ++ need_st_code) { ++ /* set start code for VC-1 advanced profile */ ++ payload.buf = ++ gst_buffer_new_allocate (NULL, payload.mo_size + 4, NULL); ++ gst_buffer_fill (payload.buf, 0, st_code, sizeof (st_code)); ++ gst_buffer_fill (payload.buf, 4, payload_data, payload_len); ++ payload.buf_filled = payload_len + sizeof (st_code); ++ } else { ++ payload.buf = gst_buffer_new_allocate (NULL, payload.mo_size, NULL); ++ gst_buffer_fill (payload.buf, 0, payload_data, payload_len); ++ payload.buf_filled = payload_len; ++ } + + gst_asf_payload_queue_for_stream (demux, &payload, stream); + } +@@ -483,7 +544,7 @@ gst_asf_demux_parse_payload (GstASFDemux * demux, AsfPacket * packet, + + if (G_LIKELY (sub_payload_len > 0)) { + payload.buf = asf_packet_create_payload_buffer (packet, +- &payload_data, &payload_len, sub_payload_len); ++ &payload_data, &payload_len, sub_payload_len, need_st_code); + payload.buf_filled = sub_payload_len; + + payload.ts = ts; +-- +1.8.1.2 + |