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qtdemux: Fix offsets for reading lpcm specific fields

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We were reading at the completely wrong positions, 16 bytes later in the
data.

Also add support for high-aligned samples.
This commit is contained in:
Sebastian Dröge 2017-08-10 16:08:06 +03:00
parent df67c50f67
commit 7d89e73336
2 changed files with 19 additions and 8 deletions
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1
gst/isomp4/fourcc.h
View file

@ -255,6 +255,7 @@ G_BEGIN_DECLS
#define FOURCC_wave GST_MAKE_FOURCC('w','a','v','e')
#define FOURCC_wide GST_MAKE_FOURCC('w','i','d','e')
#define FOURCC_zlib GST_MAKE_FOURCC('z','l','i','b')
#define FOURCC_lpcm GST_MAKE_FOURCC('l','p','c','m')
#define FOURCC_cfhd GST_MAKE_FOURCC('C','F','H','D')
#define FOURCC_ap4x GST_MAKE_FOURCC('a','p','4','x')

26
gst/isomp4/qtdemux.c
View file

@ -10853,6 +10853,7 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
case FOURCC_twos:
case FOURCC_sowt:
case FOURCC_raw_:
case FOURCC_lpcm:
break;
default:
{
@ -11475,6 +11476,9 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
}
break;
}
case FOURCC_lpcm:
/* Fully handled elsewhere */
break;
default:
GST_INFO_OBJECT (qtdemux,
"unhandled type %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));
@ -14252,7 +14256,7 @@ qtdemux_audio_caps (GstQTDemux * qtdemux, QtDemuxStream * stream,
_codec ("Opus");
caps = gst_caps_new_empty_simple ("audio/x-opus");
break;
case GST_MAKE_FOURCC ('l', 'p', 'c', 'm'):
case FOURCC_lpcm:
{
guint32 flags = 0;
guint32 depth = 0;
@ -14269,23 +14273,29 @@ qtdemux_audio_caps (GstQTDemux * qtdemux, QtDemuxStream * stream,
};
_codec ("Raw LPCM audio");
if (data && len >= 56) {
depth = QT_UINT32 (data + 40);
flags = QT_UINT32 (data + 44);
width = QT_UINT32 (data + 48) * 8 / entry->n_channels;
if (data && len >= 36) {
depth = QT_UINT32 (data + 24);
flags = QT_UINT32 (data + 28);
width = QT_UINT32 (data + 32) * 8 / entry->n_channels;
}
if ((flags & FLAG_IS_FLOAT) == 0) {
if (depth == 0)
depth = 16;
if (width == 0)
width = 16;
if ((flags & FLAG_IS_ALIGNED_HIGH))
depth = width;
format = gst_audio_format_build_integer ((flags & FLAG_IS_SIGNED) ?
TRUE : FALSE, (flags & FLAG_IS_BIG_ENDIAN) ?
G_BIG_ENDIAN : G_LITTLE_ENDIAN, width, depth);
caps = gst_caps_new_simple ("audio/x-raw",
"format", G_TYPE_STRING, gst_audio_format_to_string (format),
"layout", G_TYPE_STRING, (flags & FLAG_IS_NON_INTERLEAVED) ?
"non-interleaved" : "interleaved", NULL);
"format", G_TYPE_STRING,
format !=
GST_AUDIO_FORMAT_UNKNOWN ? gst_audio_format_to_string (format) :
"UNKNOWN", "layout", G_TYPE_STRING,
(flags & FLAG_IS_NON_INTERLEAVED) ? "non-interleaved" :
"interleaved", NULL);
stream->alignment = GST_ROUND_UP_8 (depth);
stream->alignment = round_up_pow2 (stream->alignment);
} else {