RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

avformat/argo_brp: support MASK streams 

We can't actually use them though.

Signed-off-by: Zane van Iperen <zane@zanevaniperen.com>
This commit is contained in:
Zane van Iperen 2020-09-25 22:39:46 +10:00
parent ebfed56858
commit 2e7752afff
No known key found for this signature in database
GPG Key ID: 68616B2D8AC4DCC5
1 changed files with 25 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
libavformat/argo_brp.c
View File

@ -33,13 +33,16 @@
#define BRP_STREAM_HEADER_SIZE 20
#define BRP_MAX_STREAMS 32 /* Soft cap, but even this is overkill. */
#define BVID_HEADER_SIZE 16
#define BRP_MIN_BUFFER_SIZE FFMAX(FFMAX3(BRP_FILE_HEADER_SIZE, \
#define MASK_HEADER_SIZE 12
#define BRP_MIN_BUFFER_SIZE FFMAX3(FFMAX3(BRP_FILE_HEADER_SIZE, \
BRP_BLOCK_HEADER_SIZE, \
BRP_STREAM_HEADER_SIZE), \
BVID_HEADER_SIZE)
BVID_HEADER_SIZE, \
MASK_HEADER_SIZE)
#define BRP_CODEC_ID_BVID MKTAG('B', 'V', 'I', 'D')
#define BRP_CODEC_ID_BASF MKTAG('B', 'A', 'S', 'F')
#define BRP_CODEC_ID_MASK MKTAG('M', 'A', 'S', 'K')
typedef struct ArgoBRPFileHeader {
uint32_t magic;
@ -60,6 +63,12 @@ typedef struct ArgoBVIDHeader {
uint32_t depth;
} ArgoBVIDHeader;
typedef struct ArgoMASKHeader {
uint32_t num_frames;
uint32_t width;
uint32_t height;
} ArgoMASKHeader;
typedef struct ArgoBRPStreamHeader {
uint32_t codec_id;
uint32_t id;
@ -72,6 +81,8 @@ typedef struct ArgoBRPStreamHeader {
ArgoBVIDHeader bvid;
/* If codec_id == BRP_CODEC_ID_BASF */
ArgoASFFileHeader basf;
/* If codec_id == BRP_CODEC_ID_MASK */
ArgoMASKHeader mask;
} extradata;
} ArgoBRPStreamHeader;
@ -106,6 +117,9 @@ static int read_extradata(AVFormatContext *s, const ArgoBRPStreamHeader *hdr,
} else if (hdr->codec_id == BRP_CODEC_ID_BASF) {
name = "BASF";
size = ASF_FILE_HEADER_SIZE;
} else if (hdr->codec_id == BRP_CODEC_ID_MASK) {
name = "MASK";
size = MASK_HEADER_SIZE;
} else {
avpriv_request_sample(s, "BRP codec id 0x%x", hdr->codec_id);
@ -240,7 +254,16 @@ static int argo_brp_read_header(AVFormatContext *s)
if ((ret = ff_argo_asf_validate_file_header(s, &hdr->extradata.basf)) < 0)
return ret;
} else if (hdr->codec_id == BRP_CODEC_ID_MASK) {
ArgoMASKHeader *mask = &hdr->extradata.mask;
st->codecpar->codec_type = AVMEDIA_TYPE_DATA;
mask->num_frames = AV_RL32(buf + 0);
mask->width = AV_RL32(buf + 4);
mask->height = AV_RL32(buf + 8);
st->nb_frames = mask->num_frames;
} else {
av_assert0(0); /* Caught above, should never happen. */
}