diff options
Diffstat (limited to 'common/recipes-multimedia/gstreamer/gst-plugins-ugly')
| -rw-r--r-- | common/recipes-multimedia/gstreamer/gst-plugins-ugly/0001-asfdemux-asfpacket-set-frame-start-code-to-VC-1-adva.patch | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/common/recipes-multimedia/gstreamer/gst-plugins-ugly/0001-asfdemux-asfpacket-set-frame-start-code-to-VC-1-adva.patch b/common/recipes-multimedia/gstreamer/gst-plugins-ugly/0001-asfdemux-asfpacket-set-frame-start-code-to-VC-1-adva.patch new file mode 100644 index 0000000..d065c7c --- /dev/null +++ b/common/recipes-multimedia/gstreamer/gst-plugins-ugly/0001-asfdemux-asfpacket-set-frame-start-code-to-VC-1-adva.patch @@ -0,0 +1,99 @@ +From 258bf9862e5b7179562f0cae9fb470f6486dca3a Mon Sep 17 00:00:00 2001 +From: Kazunori Kobayashi <kkobayas@igel.co.jp> +Date: Thu, 12 Jul 2012 12:08:15 +0900 +Subject: [PATCH] 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 | 36 +++++++++++++++++++++++++++++++++--- + 1 file changed, 33 insertions(+), 3 deletions(-) + +diff --git a/gst/asfdemux/asfpacket.c b/gst/asfdemux/asfpacket.c +index 552a559..77209f1 100644 +--- a/gst/asfdemux/asfpacket.c ++++ b/gst/asfdemux/asfpacket.c +@@ -71,9 +71,10 @@ 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; ++ guint8 *st_code; + + g_assert (payload_len <= *p_size); + +@@ -83,6 +84,21 @@ 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) { ++ st_code = GST_BUFFER_DATA (packet->buf) + (off - 4); ++ /* check if this packet has a start code */ ++ if (st_code[4] != 0x00 || st_code[5] != 0x00 || st_code[6] != 0x01 || ++ st_code[7] != 0x0d) { ++ st_code[0] = 0x00; ++ st_code[1] = 0x00; ++ st_code[2] = 0x01; ++ st_code[3] = 0x0d; ++ ++ return gst_buffer_create_sub (packet->buf, off - 4, payload_len + 4); ++ } ++ } ++ + return gst_buffer_create_sub (packet->buf, off, payload_len); + } + +@@ -274,6 +290,9 @@ gst_asf_demux_parse_payload (GstASFDemux * demux, AsfPacket * packet, + gboolean is_compressed; + guint payload_len; + guint stream_num; ++ GstStructure *structure; ++ guint32 fourcc; ++ gboolean need_st_code = FALSE; + + if (G_UNLIKELY (*p_size < 1)) { + GST_WARNING_OBJECT (demux, "Short packet!"); +@@ -353,6 +372,17 @@ gst_asf_demux_parse_payload (GstASFDemux * demux, AsfPacket * packet, + return TRUE; + } + ++ structure = gst_caps_get_structure (stream->caps, 0); ++ if (gst_structure_get_fourcc (structure, "format", &fourcc)) { ++ /* ++ * set start code for VC-1 advanced profile if fourcc is 'WVC1' and this ++ * packet is at the head of a payload. ++ */ ++ if (fourcc == GST_MAKE_FOURCC ('W', 'V', 'C', '1') ++ && 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); + +@@ -384,7 +414,7 @@ gst_asf_demux_parse_payload (GstASFDemux * demux, AsfPacket * packet, + if ((stream = gst_asf_demux_get_stream (demux, stream_num)) + && payload_len) { + payload.buf = asf_packet_create_payload_buffer (packet, p_data, p_size, +- payload_len); ++ payload_len, need_st_code); + + /* n-th fragment of a fragmented media object? */ + if (payload.mo_offset != 0) { +@@ -443,7 +473,7 @@ 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.ts = ts; + if (G_LIKELY (ts_delta)) +-- +1.7.9.5 + |