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movenc: Reorder entries in the MOVIentry struct, for tigheter packing 

Originally, sizeof(struct MOVIentry) was 48, after the reordering,
it is 40 in my build configuration.

When writing really long mov/mp4 files, this can make a difference
- this saves a bit over 2 MB of memory per hour of video (down to
10.3 MB per hour from 12.3 MB per hour initially) for a video with
75 packets per second - 25 fps + 50 audio packets (which is the
case for AMR audio).

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2012-01-20 20:48:19 +02:00
parent 1f712e6a05
commit 5d95112d92
1 changed files with 2 additions and 2 deletions
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4
libavformat/movenc.h
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@ -40,12 +40,12 @@
#define MODE_IPOD 0x20 #define MODE_IPOD 0x20
typedef struct MOVIentry { typedef struct MOVIentry {
unsigned int size;
uint64_t pos; uint64_t pos;
int64_t dts;
unsigned int size;
unsigned int samplesInChunk; unsigned int samplesInChunk;
unsigned int entries; unsigned int entries;
int cts; int cts;
int64_t dts;
#define MOV_SYNC_SAMPLE 0x0001 #define MOV_SYNC_SAMPLE 0x0001
#define MOV_PARTIAL_SYNC_SAMPLE 0x0002 #define MOV_PARTIAL_SYNC_SAMPLE 0x0002
uint32_t flags; uint32_t flags;