From 2ce746c66a1410160b222fd3758644653287e043 Mon Sep 17 00:00:00 2001 From: Aurelien Jacobs Date: Sat, 23 Jun 2007 12:32:19 +0000 Subject: [PATCH] use intreadwrite functions in matroskadec based on a patch by Ronald S. Bultje rsbultje gmail com Originally committed as revision 9396 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavformat/matroskadec.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c index e41013d..2a9c187 100644 --- a/libavformat/matroskadec.c +++ b/libavformat/matroskadec.c @@ -860,8 +860,7 @@ matroska_probe (AVProbeData *p) uint8_t probe_data[] = { 'm', 'a', 't', 'r', 'o', 's', 'k', 'a' }; /* ebml header? */ - if ((p->buf[0] << 24 | p->buf[1] << 16 | - p->buf[2] << 8 | p->buf[3]) != EBML_ID_HEADER) + if (AV_RB32(p->buf) != EBML_ID_HEADER) return 0; /* length of header */ @@ -2044,13 +2043,11 @@ matroska_read_header (AVFormatContext *s, MATROSKA_CODEC_ID_VIDEO_VFW_FOURCC) && (track->codec_priv_size >= 40) && (track->codec_priv != NULL)) { - unsigned char *p; + MatroskaVideoTrack *vtrack = (MatroskaVideoTrack *) track; /* Offset of biCompression. Stored in LE. */ - p = (unsigned char *)track->codec_priv + 16; - ((MatroskaVideoTrack *)track)->fourcc = (p[3] << 24) | - (p[2] << 16) | (p[1] << 8) | p[0]; - codec_id = codec_get_id(codec_bmp_tags, ((MatroskaVideoTrack *)track)->fourcc); + vtrack->fourcc = AV_RL32(track->codec_priv + 16); + codec_id = codec_get_id(codec_bmp_tags, vtrack->fourcc); } @@ -2060,12 +2057,10 @@ matroska_read_header (AVFormatContext *s, MATROSKA_CODEC_ID_AUDIO_ACM) && (track->codec_priv_size >= 18) && (track->codec_priv != NULL)) { - unsigned char *p; uint16_t tag; /* Offset of wFormatTag. Stored in LE. */ - p = (unsigned char *)track->codec_priv; - tag = (p[1] << 8) | p[0]; + tag = AV_RL16(track->codec_priv); codec_id = codec_get_id(codec_wav_tags, tag); } @@ -2274,7 +2269,7 @@ matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data, int size, duration = matroska->tracks[track]->default_duration; /* block_time (relative to cluster time) */ - block_time = (data[0] << 8) | data[1]; + block_time = AV_RB16(data); data += 2; size -= 2; flags = *data; -- 2.7.4