From a37eba036b6f0c545f14ec17cd2c37b2ca5167a4 Mon Sep 17 00:00:00 2001 From: Julien Moutte Date: Wed, 26 Sep 2007 11:17:08 +0000 Subject: gst/flv/gstflvparse.c: Fix bit masks operations to be sure we detect the codec_tags and sample rates correctly. Original commit message from CVS: 2007-09-26 Julien MOUTTE * gst/flv/gstflvparse.c: (gst_flv_parse_tag_audio), (gst_flv_parse_tag_video): Fix bit masks operations to be sure we detect the codec_tags and sample rates correctly. Fix raw audio caps generation. --- gst/flv/gstflvparse.c | 76 ++++++++++++++++++--------------------------------- 1 file changed, 27 insertions(+), 49 deletions(-) (limited to 'gst/flv/gstflvparse.c') diff --git a/gst/flv/gstflvparse.c b/gst/flv/gstflvparse.c index 6240e684..a7ca1a89 100644 --- a/gst/flv/gstflvparse.c +++ b/gst/flv/gstflvparse.c @@ -392,12 +392,15 @@ gst_flv_parse_tag_audio (GstFLVDemux * demux, const guint8 * data, { GstFlowReturn ret = GST_FLOW_OK; GstBuffer *buffer = NULL; - guint32 pts = 0, codec_tag = 0, rate = 0, width = 0, channels = 0; + guint32 pts = 0, codec_tag = 0, rate = 5512, width = 8, channels = 1; guint32 codec_data = 0, pts_ext = 0; guint8 flags = 0; GST_LOG_OBJECT (demux, "parsing an audio tag"); + GST_LOG_OBJECT (demux, "pts bytes %02X %02X %02X %02X", data[0], data[1], + data[2], data[3]); + /* Grab information about audio tag */ pts = FLV_GET_BEUI24 (data, data_size); /* read the pts extension to 32 bits integer */ @@ -410,45 +413,26 @@ gst_flv_parse_tag_audio (GstFLVDemux * demux, const guint8 * data, /* Channels */ if (flags & 0x01) { channels = 2; - } else { - channels = 1; } /* Width */ if (flags & 0x02) { width = 16; - } else { - width = 8; } /* Sampling rate */ - if (flags & 0x0C) { + if ((flags >> 2) == 3) { rate = 44100; - } else if (flags & 0x08) { + } else if ((flags >> 2) == 2) { rate = 22050; - } else if (flags & 0x04) { + } else if ((flags >> 2) == 1) { rate = 11025; - } else { - rate = 5512; } /* Codec tag */ - if (flags & 0x10) { - codec_tag = 1; - codec_data = 1; - } else if (flags & 0x20) { - codec_tag = 2; - codec_data = 1; - } else if (flags & 0x30) { - codec_tag = 3; - codec_data = 1; - } else if (flags & 0x40) { - codec_tag = 4; - codec_data = 1; - } else if (flags & 0x50) { - codec_tag = 5; - codec_data = 1; - } + codec_tag = flags >> 4; + codec_data = 1; GST_LOG_OBJECT (demux, "audio tag with %d channels, %dHz sampling rate, " - "%d bits width, codec tag %d", channels, rate, width, codec_tag); + "%d bits width, codec tag %u (flags %02X)", channels, rate, width, + codec_tag, flags); /* If we don't have our audio pad created, then create it. */ if (G_UNLIKELY (!demux->audio_pad)) { @@ -471,7 +455,9 @@ gst_flv_parse_tag_audio (GstFLVDemux * demux, const guint8 * data, break; case 0: case 3: - caps = gst_caps_new_simple ("audio/x-raw-int", NULL); + caps = gst_caps_new_simple ("audio/x-raw-int", + "endianness", G_TYPE_INT, G_BYTE_ORDER, + "signed", G_TYPE_BOOLEAN, TRUE, NULL); break; default: GST_WARNING_OBJECT (demux, "unsupported audio codec tag %u", codec_tag); @@ -487,7 +473,8 @@ gst_flv_parse_tag_audio (GstFLVDemux * demux, const guint8 * data, gst_caps_set_simple (caps, "rate", G_TYPE_INT, rate, - "channels", G_TYPE_INT, channels, "width", G_TYPE_INT, width, NULL); + "channels", G_TYPE_INT, channels, + "width", G_TYPE_INT, width, "depth", G_TYPE_INT, width, NULL); gst_pad_set_caps (demux->audio_pad, caps); @@ -647,12 +634,15 @@ gst_flv_parse_tag_video (GstFLVDemux * demux, const guint8 * data, { GstFlowReturn ret = GST_FLOW_OK; GstBuffer *buffer = NULL; - guint32 pts = 0, codec_tag = 0, codec_data = 0, pts_ext = 0; + guint32 pts = 0, codec_data = 1, pts_ext = 0; gboolean keyframe = FALSE; - guint8 flags = 0; + guint8 flags = 0, codec_tag = 0; GST_LOG_OBJECT (demux, "parsing a video tag"); + GST_LOG_OBJECT (demux, "pts bytes %02X %02X %02X %02X", data[0], data[1], + data[2], data[3]); + /* Grab information about video tag */ pts = FLV_GET_BEUI24 (data, data_size); /* read the pts extension to 32 bits integer */ @@ -663,28 +653,14 @@ gst_flv_parse_tag_video (GstFLVDemux * demux, const guint8 * data, flags = GST_READ_UINT8 (data + 7); /* Keyframe */ - if (flags & 0x10) { + if ((flags >> 4) == 1) { keyframe = TRUE; - } else if (flags & 0x20) { - keyframe = FALSE; } /* Codec tag */ - if (flags & 0x02) { // H263 - codec_tag = 2; - codec_data = 1; - } else if (flags & 0x03) { // Sorenson Spark - codec_tag = 3; - codec_data = 1; - } else if (flags & 0x04) { // VP6 - codec_tag = 4; - codec_data = 2; - } else if (flags & 0x05) { // VP6 Alpha - codec_tag = 5; - codec_data = 2; - } + codec_tag = flags & 0x0F; - GST_LOG_OBJECT (demux, "video tag with codec tag %d, keyframe (%d)", - codec_tag, keyframe); + GST_LOG_OBJECT (demux, "video tag with codec tag %u, keyframe (%d) " + "(flags %02X)", codec_tag, keyframe, flags); /* If we don't have our video pad created, then create it. */ if (G_UNLIKELY (!demux->video_pad)) { @@ -709,9 +685,11 @@ gst_flv_parse_tag_video (GstFLVDemux * demux, const guint8 * data, break; case 4: caps = gst_caps_new_simple ("video/x-vp6-flash", NULL); + codec_data = 2; break; case 5: caps = gst_caps_new_simple ("video/x-vp6-flash", NULL); + codec_data = 2; break; default: GST_WARNING_OBJECT (demux, "unsupported video codec tag %d", codec_tag); -- cgit v1.2.1